file_path stringlengths 3 280 | file_language stringclasses 66 values | content stringlengths 1 1.04M | repo_name stringlengths 5 92 | repo_stars int64 0 154k | repo_description stringlengths 0 402 | repo_primary_language stringclasses 108 values | developer_username stringlengths 1 25 | developer_name stringlengths 0 30 | developer_company stringlengths 0 82 |
|---|---|---|---|---|---|---|---|---|---|
src/py2sl/mod.rs | Rust | use pyo3::exceptions::PyValueError;
use pyo3::prelude::*;
use pyo3::types::{PyDict, PyList, PyTuple};
use starlark::values::dict::AllocDict;
use starlark::values::list::AllocList;
use starlark::values::tuple::AllocTuple;
use starlark::values::{FrozenHeap, FrozenValue, Heap, Value};
mod slpyobject;
pub(crate) use slpyobject::SlPyObject;
use crate::values::{PyFrozenValue, PyValue};
pub(crate) fn sl_frozen_value_from_py(
value: &Bound<'_, PyAny>,
heap: &FrozenHeap,
) -> PyResult<FrozenValue> {
if value.is_none() {
Ok(FrozenValue::new_none())
} else if let Ok(x) = value.extract::<bool>() {
Ok(FrozenValue::new_bool(x))
} else if let Ok(x) = value.extract::<i64>() {
Ok(heap.alloc(x))
} else if let Ok(x) = value.extract::<u64>() {
Ok(heap.alloc(x))
} else if let Ok(x) = value.extract::<num_bigint::BigInt>() {
Ok(heap.alloc(x))
} else if let Ok(x) = value.extract::<f64>() {
Ok(heap.alloc(x))
} else if let Ok(x) = value.extract::<String>() {
Ok(heap.alloc(x))
} else if let Ok(x) = value.downcast::<PyTuple>() {
let entries = {
let mut tmp = Vec::new();
for elem in x.iter_borrowed() {
tmp.push(sl_frozen_value_from_py(&elem, heap)?);
}
tmp
};
Ok(heap.alloc(AllocTuple(entries)))
} else if let Ok(x) = value.downcast::<PyList>() {
let entries = {
let mut tmp = Vec::new();
for elem in x.into_iter() {
tmp.push(sl_frozen_value_from_py(&elem, heap)?);
}
tmp
};
Ok(heap.alloc(AllocList(entries)))
} else if let Ok(x) = value.downcast::<PyDict>() {
let entries = {
let mut tmp = Vec::new();
for (k, v) in x.into_iter() {
tmp.push((
sl_frozen_value_from_py(&k, heap)?,
sl_frozen_value_from_py(&v, heap)?,
));
}
tmp
};
Ok(heap.alloc(AllocDict(entries)))
} else if let Ok(x) = value.downcast::<PyFrozenValue>() {
Ok(x.borrow().0)
} else if let Ok(_) = value.downcast::<PyValue>() {
// disallow this
Err(PyValueError::new_err(
"Value must be frozen before use in this context",
))
} else {
Ok(heap.alloc(SlPyObject::from(value.clone().unbind())))
}
}
pub(crate) fn sl_value_from_py<'v>(value: &Bound<'_, PyAny>, heap: &'v Heap) -> Value<'v> {
if value.is_none() {
Value::new_none()
} else if let Ok(x) = value.extract::<bool>() {
Value::new_bool(x)
} else if let Ok(x) = value.extract::<i64>() {
heap.alloc(x)
} else if let Ok(x) = value.extract::<u64>() {
heap.alloc(x)
} else if let Ok(x) = value.extract::<num_bigint::BigInt>() {
heap.alloc(x)
} else if let Ok(x) = value.extract::<f64>() {
heap.alloc(x)
} else if let Ok(x) = value.extract::<String>() {
heap.alloc(x)
} else if let Ok(x) = value.downcast::<PyTuple>() {
let entries = x.iter_borrowed().map(|elem| sl_value_from_py(&elem, heap));
heap.alloc(AllocTuple(entries))
} else if let Ok(x) = value.downcast::<PyList>() {
let entries = x.into_iter().map(|elem| sl_value_from_py(&elem, heap));
heap.alloc(AllocList(entries))
} else if let Ok(x) = value.downcast::<PyDict>() {
let entries = x
.into_iter()
.map(|(k, v)| (sl_value_from_py(&k, heap), sl_value_from_py(&v, heap)));
heap.alloc(AllocDict(entries))
} else if let Ok(x) = value.downcast::<PyFrozenValue>() {
x.borrow().0.to_value()
} else if let Ok(x) = value.downcast::<PyValue>() {
// XXX: This is going to cause problems when value is shared cross-heap,
// so more design is needed to correctly track each value's belonging heap.
unsafe { ::core::mem::transmute(x.borrow().0) }
} else {
heap.alloc(SlPyObject::from(value.clone().unbind()))
}
}
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
src/py2sl/slpyobject.rs | Rust | use core::cmp::Ordering;
use std::hash::Hasher;
use allocative::Allocative;
use pyo3::exceptions::PyRuntimeError;
use pyo3::prelude::*;
use pyo3::types::PyDict;
use pyo3::types::PyTuple;
use starlark::any::ProvidesStaticType;
use starlark::collections::StarlarkHasher;
use starlark::eval::{Arguments, Evaluator};
use starlark::values::{
starlark_value, AllocFrozenValue, AllocValue, Freeze, Freezer, FrozenHeap, FrozenValue, Heap,
NoSerialize, StarlarkValue, Trace, Value,
};
use crate::py2sl::sl_value_from_py;
use crate::sl2py::py_from_sl_value;
#[derive(Trace, NoSerialize, ProvidesStaticType, Allocative)]
pub(crate) struct SlPyObject(#[allocative(skip)] pub(crate) PyObject);
impl From<PyObject> for SlPyObject {
fn from(value: PyObject) -> Self {
Self(value)
}
}
impl<'v> AllocValue<'v> for SlPyObject {
fn alloc_value(self, heap: &'v Heap) -> Value<'v> {
heap.alloc_simple(self)
}
}
impl AllocFrozenValue for SlPyObject {
fn alloc_frozen_value(self, heap: &FrozenHeap) -> FrozenValue {
heap.alloc_simple(self)
}
}
impl ::core::fmt::Debug for SlPyObject {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
::core::fmt::Debug::fmt(&self.0, f)
}
}
impl ::std::fmt::Display for SlPyObject {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
::std::fmt::Display::fmt(&self.0, f)
}
}
impl Freeze for SlPyObject {
type Frozen = SlPyObject;
fn freeze(self, _freezer: &Freezer) -> anyhow::Result<Self::Frozen> {
Ok(self)
}
}
fn sl_value_err_from_py(e: PyErr) -> starlark::Error {
starlark::Error::new(starlark::ErrorKind::Value(e.into()))
}
#[starlark_value(type = "pyobject")]
impl<'v> StarlarkValue<'v> for SlPyObject {
type Canonical = Self;
fn to_bool(&self) -> bool {
let result: PyResult<bool> = Python::with_gil(|py| {
let inner = self.0.bind(py);
inner.is_truthy()
});
result.unwrap_or(true)
}
fn write_hash(&self, hasher: &mut StarlarkHasher) -> starlark::Result<()> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
match inner.hash() {
Ok(hash) => {
hasher.write_isize(hash);
Ok(())
}
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn equals(&self, other: Value<'v>) -> starlark::Result<bool> {
let result = Python::with_gil(|py| {
let inner = self.0.bind(py);
let other = py_from_sl_value(py, other)?;
inner.eq(other)
});
result.map_err(sl_value_err_from_py)
}
fn compare(&self, other: Value<'v>) -> starlark::Result<Ordering> {
let result = Python::with_gil(|py| {
let inner = self.0.bind(py);
let other = py_from_sl_value(py, other)?;
inner.compare(other)
});
result.map_err(sl_value_err_from_py)
}
fn invoke(
&self,
_me: Value<'v>,
args: &Arguments<'v, '_>,
eval: &mut Evaluator<'v, '_>,
) -> starlark::Result<Value<'v>> {
let heap = eval.heap();
let result: PyResult<Value<'v>> = Python::with_gil(|py| {
let inner = self.0.bind(py);
let py_args = {
let mut result = Vec::new();
match args.positions(heap) {
Ok(sl_args) => {
for sl in sl_args {
result.push(py_from_sl_value(py, sl)?);
}
}
Err(e) => {
return Err(PyRuntimeError::new_err(format!(
"failed to unpack Starlark positional args: {}",
e.to_string()
)));
}
}
PyTuple::new_bound(py, result)
};
let py_kwargs = match args.names_map() {
Ok(sl_kwargs) => {
if sl_kwargs.len() == 0 {
None
} else {
let result = PyDict::new_bound(py);
for (k, v) in sl_kwargs {
let k = k.as_str();
match py_from_sl_value(py, v) {
Ok(v) => {
if let Err(e) = result.set_item(k, v) {
return Err(e);
}
}
Err(e) => {
return Err(e);
}
}
}
Some(result)
}
}
Err(e) => {
return Err(PyRuntimeError::new_err(format!(
"failed to unpack Starlark keyword args: {}",
e.to_string()
)));
}
};
inner
.call(py_args, py_kwargs.as_ref())
.map(|v| sl_value_from_py(&v, heap))
});
result.map_err(sl_value_err_from_py)
}
fn length(&self) -> starlark::Result<i32> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
match inner.len() {
Ok(len) => Ok(len as i32),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn is_in(&self, other: Value<'v>) -> starlark::Result<bool> {
let result = Python::with_gil(|py| {
let inner = self.0.bind(py);
let other = py_from_sl_value(py, other)?;
inner.contains(other)
});
result.map_err(sl_value_err_from_py)
}
fn plus(&self, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
match inner.pos() {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn minus(&self, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
match inner.neg() {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn get_attr(&self, attribute: &str, heap: &'v Heap) -> Option<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
// no way to propagate error with this interface
if let Some(v) = inner.getattr(attribute).ok() {
Some(sl_value_from_py(&v, heap))
} else {
None
}
})
}
fn has_attr(&self, attribute: &str, _heap: &'v Heap) -> bool {
Python::with_gil(|py| {
let inner = self.0.bind(py);
// no way to propagate error with this interface
inner.hasattr(attribute)
})
.unwrap_or(false)
}
fn dir_attr(&self) -> Vec<String> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
inner
.dir()
.unwrap() // no way to propagate error with this interface
.into_iter()
.map(|x| x.extract::<String>().unwrap())
.collect()
})
}
fn set_attr(&self, attribute: &str, new_value: Value<'v>) -> starlark::Result<()> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let new_value = py_from_sl_value(py, new_value)?;
inner.setattr(attribute, new_value)
})
.map_err(sl_value_err_from_py)
}
fn add(&self, rhs: Value<'v>, heap: &'v Heap) -> Option<starlark::Result<Value<'v>>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Some(Err(sl_value_err_from_py(e))),
};
match inner.add(rhs.bind(py)) {
Ok(result) => Some(Ok(sl_value_from_py(&result, heap))),
Err(e) => Some(Err(sl_value_err_from_py(e))),
}
})
}
fn sub(&self, rhs: Value<'v>, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Err(sl_value_err_from_py(e)),
};
match inner.sub(rhs.bind(py)) {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn mul(&self, rhs: Value<'v>, heap: &'v Heap) -> Option<starlark::Result<Value<'v>>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Some(Err(sl_value_err_from_py(e))),
};
match inner.mul(rhs.bind(py)) {
Ok(result) => Some(Ok(sl_value_from_py(&result, heap))),
Err(e) => Some(Err(sl_value_err_from_py(e))),
}
})
}
fn div(&self, rhs: Value<'v>, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Err(sl_value_err_from_py(e)),
};
match inner.div(rhs.bind(py)) {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn percent(&self, rhs: Value<'v>, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Err(sl_value_err_from_py(e)),
};
match inner.rem(rhs.bind(py)) {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn floor_div(&self, rhs: Value<'v>, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Err(sl_value_err_from_py(e)),
};
match inner.floor_div(rhs.bind(py)) {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn bit_and(&self, rhs: Value<'v>, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Err(sl_value_err_from_py(e)),
};
match inner.bitand(rhs.bind(py)) {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn bit_or(&self, rhs: Value<'v>, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Err(sl_value_err_from_py(e)),
};
match inner.bitor(rhs.bind(py)) {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn bit_xor(&self, rhs: Value<'v>, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Err(sl_value_err_from_py(e)),
};
match inner.bitxor(rhs.bind(py)) {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn bit_not(&self, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
match inner.bitnot() {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn left_shift(&self, rhs: Value<'v>, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Err(sl_value_err_from_py(e)),
};
match inner.lshift(rhs.bind(py)) {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
fn right_shift(&self, rhs: Value<'v>, heap: &'v Heap) -> starlark::Result<Value<'v>> {
Python::with_gil(|py| {
let inner = self.0.bind(py);
let rhs = match py_from_sl_value(py, rhs) {
Ok(rhs) => rhs,
Err(e) => return Err(sl_value_err_from_py(e)),
};
match inner.rshift(rhs.bind(py)) {
Ok(result) => Ok(sl_value_from_py(&result, heap)),
Err(e) => Err(sl_value_err_from_py(e)),
}
})
}
}
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
src/repr_utils.rs | Rust | use std::fmt::Display;
use starlark::syntax::DialectTypes;
#[derive(Clone, Copy)]
pub(crate) struct PyReprBool(pub bool);
impl Display for PyReprBool {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
if self.0 {
write!(f, "True")
} else {
write!(f, "False")
}
}
}
pub(crate) struct PyReprDialectTypes(pub DialectTypes);
impl Display for PyReprDialectTypes {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
// NOTE: keep consistent with PyDialectTypes.__str__
match self.0 {
DialectTypes::Disable => write!(f, "DialectTypes.DISABLE"),
DialectTypes::ParseOnly => write!(f, "DialectTypes.PARSE_ONLY"),
DialectTypes::Enable => write!(f, "DialectTypes.ENABLE"),
}
}
}
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
src/sl2py/mod.rs | Rust | use num_bigint::BigInt;
use pyo3::prelude::*;
use pyo3::types::{PyDict, PyList, PyTuple};
use starlark::values::dict::{DictRef, FrozenDictRef};
use starlark::values::float::StarlarkFloat;
use starlark::values::function::NativeFunction;
use starlark::values::list::ListRef;
use starlark::values::tuple::{FrozenTupleRef, TupleRef};
use starlark::values::{FrozenValue, UnpackValue, Value, ValueLike};
use crate::py2sl::SlPyObject;
use crate::values::{PyFrozenValue, PyValue};
mod native_function;
use native_function::PySlNativeFunction;
pub(crate) fn py_from_sl_frozen_value(py: Python<'_>, sl: FrozenValue) -> PyResult<PyObject> {
if sl.is_none() {
Ok(py.None())
} else if let Some(x) = sl.unpack_bool() {
Ok(x.to_object(py))
} else if let Some(x) = sl.unpack_i32() {
Ok(x.to_object(py))
} else if let Some(x) = BigInt::unpack_value(sl.to_value()) {
Ok(x.to_object(py))
} else if let Some(x) = sl.downcast_frozen_ref::<StarlarkFloat>() {
Ok(x.0.to_object(py))
} else if let Some(x) = sl.to_value().unpack_str() {
Ok(x.to_object(py))
} else if let Some(x) = FrozenTupleRef::from_frozen_value(sl) {
let mut elements = Vec::new();
for elem in x.content().into_iter() {
elements.push(py_from_sl_frozen_value(py, *elem)?);
}
Ok(PyTuple::new_bound(py, elements).as_any().clone().unbind())
} else if let Some(x) = ListRef::from_frozen_value(sl) {
let mut elements = Vec::new();
for elem in x.content().into_iter() {
elements.push(py_from_sl_value(py, *elem)?);
}
Ok(PyList::new_bound(py, elements).as_any().clone().unbind())
} else if let Some(x) = FrozenDictRef::from_frozen_value(sl) {
let result = PyDict::new_bound(py);
for (k, v) in x.iter() {
let k = py_from_sl_frozen_value(py, k)?;
let v = py_from_sl_frozen_value(py, v)?;
result.set_item(k, v)?;
}
Ok(result.as_any().clone().unbind())
} else if let Some(x) = sl.downcast_frozen_ref::<NativeFunction>() {
PySlNativeFunction::new_py_any(py, x.as_ref())
} else if let Some(x) = sl.downcast_frozen_ref::<SlPyObject>() {
Ok(x.0.clone_ref(py))
} else {
Ok(Py::new(py, PyFrozenValue::from(sl))?.into_any())
}
}
pub(crate) fn py_from_sl_value(py: Python<'_>, sl: Value<'_>) -> PyResult<PyObject> {
if sl.is_none() {
Ok(py.None())
} else if let Some(x) = sl.unpack_bool() {
Ok(x.to_object(py))
} else if let Some(x) = sl.unpack_i32() {
Ok(x.to_object(py))
} else if let Some(x) = BigInt::unpack_value(sl) {
Ok(x.to_object(py))
} else if let Some(x) = sl.downcast_ref::<StarlarkFloat>() {
Ok(x.0.to_object(py))
} else if let Some(x) = sl.unpack_str() {
Ok(x.to_object(py))
} else if let Some(x) = TupleRef::from_value(sl) {
let mut elements = Vec::new();
for elem in x.content().into_iter() {
elements.push(py_from_sl_value(py, *elem)?);
}
Ok(PyTuple::new_bound(py, elements).as_any().clone().unbind())
} else if let Some(x) = ListRef::from_value(sl) {
let mut elements = Vec::new();
for elem in x.content().into_iter() {
elements.push(py_from_sl_value(py, *elem)?);
}
Ok(PyList::new_bound(py, elements).as_any().clone().unbind())
} else if let Some(x) = DictRef::from_value(sl) {
let result = PyDict::new_bound(py);
for (k, v) in x.iter() {
let k = py_from_sl_value(py, k)?;
let v = py_from_sl_value(py, v)?;
result.set_item(k, v)?;
}
Ok(result.as_any().clone().unbind())
} else if let Some(x) = sl.downcast_ref::<NativeFunction>() {
PySlNativeFunction::new_py_any(py, x)
} else if let Some(x) = sl.downcast_ref::<SlPyObject>() {
Ok(x.0.clone_ref(py))
} else {
Ok(Py::new(py, PyValue::from(sl))?.into_any())
}
}
pub(crate) fn py_from_sl_value_option(
py: Python<'_>,
sl: Option<Value<'_>>,
) -> PyResult<Option<PyObject>> {
sl.map(|v| py_from_sl_value(py, v)).transpose()
}
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
src/sl2py/native_function.rs | Rust | use pyo3::prelude::*;
use starlark::values::function::NativeFunction;
#[pyclass(module = "xingque", name = "_SlNativeFunction", frozen)]
pub(crate) struct PySlNativeFunction(&'static NativeFunction);
impl PySlNativeFunction {
pub(crate) fn new(value: &NativeFunction) -> Self {
// Safety: Rust functions will live as long as the extension is loaded
Self(unsafe { ::core::mem::transmute(value) })
}
pub(crate) fn new_py_any(py: Python, value: &NativeFunction) -> PyResult<PyObject> {
Py::new(py, Self::new(value)).map(Py::into_any)
}
}
#[pymethods]
impl PySlNativeFunction {
fn __repr__(&self) -> String {
format!("<Starlark native fn {}>", self.0.to_string())
}
// this isn't directly callable because an Evaluator is needed
}
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
src/syntax.rs | Rust | use std::collections::HashMap;
use pyo3::exceptions::{PyRuntimeError, PyValueError};
use pyo3::prelude::*;
use starlark::syntax::{AstLoad, AstModule, Dialect, DialectTypes};
use crate::codemap::{PyFileSpan, PySpan};
use crate::repr_utils::{PyReprBool, PyReprDialectTypes};
#[pyclass(
module = "xingque",
name = "DialectTypes",
rename_all = "SCREAMING_SNAKE_CASE",
frozen,
eq,
hash
)]
#[derive(Clone, Copy, PartialEq, Eq, Hash)]
pub(crate) enum PyDialectTypes {
Disable,
ParseOnly,
Enable,
}
impl From<PyDialectTypes> for DialectTypes {
fn from(value: PyDialectTypes) -> Self {
match value {
PyDialectTypes::Disable => Self::Disable,
PyDialectTypes::ParseOnly => Self::ParseOnly,
PyDialectTypes::Enable => Self::Enable,
}
}
}
impl From<DialectTypes> for PyDialectTypes {
fn from(value: DialectTypes) -> Self {
match value {
DialectTypes::Disable => Self::Disable,
DialectTypes::ParseOnly => Self::ParseOnly,
DialectTypes::Enable => Self::Enable,
}
}
}
#[pyclass(module = "xingque", name = "Dialect")]
pub(crate) struct PyDialect(Dialect);
macro_rules! trivial_bool_prop {
// still no concat_idents! so we have to duplicate a little
// see https://github.com/rust-lang/rust/issues/29599
($cls: ident, $field: ident, $getter_name: ident, $setter_name: ident) => {
#[pymethods]
impl $cls {
#[getter]
fn $getter_name(&self) -> PyResult<bool> {
Ok(self.0.$field)
}
#[setter]
fn $setter_name(&mut self, value: bool) -> PyResult<()> {
self.0.$field = value;
Ok(())
}
}
};
}
trivial_bool_prop!(PyDialect, enable_def, get_enable_def, set_enable_def);
trivial_bool_prop!(
PyDialect,
enable_lambda,
get_enable_lambda,
set_enable_lambda
);
trivial_bool_prop!(PyDialect, enable_load, get_enable_load, set_enable_load);
trivial_bool_prop!(
PyDialect,
enable_keyword_only_arguments,
get_enable_keyword_only_arguments,
set_enable_keyword_only_arguments
);
trivial_bool_prop!(
PyDialect,
enable_load_reexport,
get_enable_load_reexport,
set_enable_load_reexport
);
trivial_bool_prop!(
PyDialect,
enable_top_level_stmt,
get_enable_top_level_stmt,
set_enable_top_level_stmt
);
trivial_bool_prop!(
PyDialect,
enable_f_strings,
get_enable_f_strings,
set_enable_f_strings
);
#[pymethods]
impl PyDialect {
fn __repr__(slf: &Bound<'_, Self>) -> PyResult<String> {
let class_name = slf.get_type().qualname()?;
let me = slf.borrow();
Ok(format!(
"{}(enable_def={}, enable_lambda={}, enable_load={}, enable_keyword_only_arguments={}, enable_types={}, enable_load_reexport={}, enable_top_level_stmt={}, enable_f_strings={})",
class_name,
PyReprBool(me.0.enable_def),
PyReprBool(me.0.enable_lambda),
PyReprBool(me.0.enable_load),
PyReprBool(me.0.enable_keyword_only_arguments),
PyReprDialectTypes(me.0.enable_types),
PyReprBool(me.0.enable_load_reexport),
PyReprBool(me.0.enable_top_level_stmt),
PyReprBool(me.0.enable_f_strings),
))
}
#[classattr]
const EXTENDED: Self = Self(Dialect::Extended);
#[classattr]
const STANDARD: Self = Self(Dialect::Standard);
#[getter]
fn get_enable_types(&self) -> PyResult<PyDialectTypes> {
Ok(self.0.enable_types.into())
}
#[setter]
fn set_enable_types(&mut self, value: PyDialectTypes) -> PyResult<()> {
self.0.enable_types = value.into();
Ok(())
}
#[new]
#[pyo3(signature = (
enable_def = false,
enable_lambda = false,
enable_load = false,
enable_keyword_only_arguments = false,
enable_types = None,
enable_load_reexport = false,
enable_top_level_stmt = false,
enable_f_strings = false,
))]
fn py_new(
enable_def: Option<bool>,
enable_lambda: Option<bool>,
enable_load: Option<bool>,
enable_keyword_only_arguments: Option<bool>,
enable_types: Option<PyDialectTypes>,
enable_load_reexport: Option<bool>,
enable_top_level_stmt: Option<bool>,
enable_f_strings: Option<bool>,
) -> PyResult<Self> {
Ok(Dialect {
enable_def: enable_def.unwrap_or(false),
enable_lambda: enable_lambda.unwrap_or(false),
enable_load: enable_load.unwrap_or(false),
enable_keyword_only_arguments: enable_keyword_only_arguments.unwrap_or(false),
enable_types: enable_types.map_or(DialectTypes::Disable, Into::into),
enable_load_reexport: enable_load_reexport.unwrap_or(false),
enable_top_level_stmt: enable_top_level_stmt.unwrap_or(false),
enable_f_strings: enable_f_strings.unwrap_or(false),
..Dialect::default()
}
.into())
}
}
impl From<Dialect> for PyDialect {
fn from(value: Dialect) -> Self {
Self(value)
}
}
#[pyclass(module = "xingque", name = "AstModule")]
pub(crate) struct PyAstModule(Option<AstModule>);
impl From<AstModule> for PyAstModule {
fn from(value: AstModule) -> Self {
Self(Some(value))
}
}
impl PyAstModule {
pub(crate) fn inner(&self) -> PyResult<&AstModule> {
self.0.as_ref().ok_or(PyRuntimeError::new_err(
"this AstModule is already consumed",
))
}
pub(crate) fn inner_mut(&mut self) -> PyResult<&mut AstModule> {
self.0.as_mut().ok_or(PyRuntimeError::new_err(
"this AstModule is already consumed",
))
}
pub(crate) fn take_inner(&mut self) -> PyResult<AstModule> {
self.0.take().ok_or(PyRuntimeError::new_err(
"this AstModule is already consumed",
))
}
}
#[pymethods]
impl PyAstModule {
#[staticmethod]
#[pyo3(signature = (path, dialect = &PyDialect::STANDARD))]
fn parse_file(path: ::std::path::PathBuf, dialect: &PyDialect) -> PyResult<Self> {
match AstModule::parse_file(&path, &dialect.0) {
Ok(x) => Ok(x.into()),
Err(e) => Err(PyValueError::new_err(e.to_string())),
}
}
#[staticmethod]
#[pyo3(signature = (filename, content, dialect = &PyDialect::STANDARD))]
fn parse(filename: &str, content: String, dialect: &PyDialect) -> PyResult<Self> {
match AstModule::parse(filename, content, &dialect.0) {
Ok(x) => Ok(x.into()),
Err(e) => Err(PyValueError::new_err(e.to_string())),
}
}
#[getter]
fn loads(&self) -> PyResult<Vec<PyAstLoad>> {
Ok(self.inner()?.loads().into_iter().map(Into::into).collect())
}
fn file_span(&self, x: &PySpan) -> PyResult<PyFileSpan> {
Ok(self.inner()?.file_span(x.0).into())
}
#[getter]
fn stmt_locations(&self) -> PyResult<Vec<PyFileSpan>> {
Ok(self
.inner()?
.stmt_locations()
.into_iter()
.map(Into::into)
.collect())
}
fn replace_binary_operators(&mut self, replace: HashMap<String, String>) -> PyResult<()> {
Ok(self.inner_mut()?.replace_binary_operators(&replace))
}
}
#[pyclass(module = "xingque", name = "AstLoad", frozen)]
pub(crate) struct PyAstLoad {
/// Span where this load is written
#[pyo3(get)]
span: PyFileSpan,
/// Module being loaded
#[pyo3(get)]
module_id: String,
/// Symbols loaded from that module (local ident -> source ident)
#[pyo3(get)]
symbols: HashMap<String, String>,
}
impl<'py> From<AstLoad<'py>> for PyAstLoad {
fn from(value: AstLoad<'py>) -> Self {
Self {
span: value.span.into(),
module_id: value.module_id.to_string(),
symbols: {
let mut x: HashMap<String, String> = HashMap::new();
for (k, v) in value.symbols.iter() {
x.insert(k.to_string(), v.to_string());
}
x
},
}
}
}
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
src/values.rs | Rust | use std::collections::HashMap;
use pyo3::{prelude::*, types::PyTuple};
use starlark::values::{FrozenValue, Heap, Value};
#[pyclass(module = "xingque", name = "FrozenValue", frozen)]
pub(crate) struct PyFrozenValue(pub(crate) FrozenValue);
impl From<FrozenValue> for PyFrozenValue {
fn from(value: FrozenValue) -> Self {
Self(value)
}
}
#[pymethods]
impl PyFrozenValue {
fn __repr__(&self) -> String {
format!("<Starlark frozen value {}>", self.0)
}
}
/// Information about the data stored on a heap.
#[pyclass(module = "xingque", name = "HeapSummary")]
pub(crate) struct PyHeapSummary(HashMap<String, (usize, usize)>);
impl From<HashMap<String, (usize, usize)>> for PyHeapSummary {
fn from(value: HashMap<String, (usize, usize)>) -> Self {
Self(value)
}
}
#[pymethods]
impl PyHeapSummary {
/// (Count, total size) by type.
fn summary(slf: PyRef<'_, Self>) -> HashMap<String, Bound<'_, PyTuple>> {
let mut x = HashMap::new();
for (k, v) in &slf.0 {
let v = vec![v.0, v.1];
x.insert(k.clone(), PyTuple::new_bound(slf.py(), v));
}
x
}
/// Total number of bytes allocated.
#[getter]
fn total_allocated_bytes(&self) -> usize {
self.0.values().map(|(_count, bytes)| bytes).sum()
}
}
/// A heap on which `Value`s can be allocated.
#[pyclass(module = "xingque", name = "Heap", frozen)]
pub(crate) struct PyHeap(Heap);
impl From<Heap> for PyHeap {
fn from(value: Heap) -> Self {
Self(value)
}
}
#[pymethods]
impl PyHeap {
/// Create a new `Heap`.
#[new]
fn py_new() -> Self {
Heap::new().into()
}
/// Number of bytes allocated on this heap, not including any memory
/// allocated outside of the starlark heap.
#[getter]
fn allocated_bytes(&self) -> usize {
self.0.allocated_bytes()
}
/// Peak memory allocated to this heap, even if the value is now lower
/// as a result of a subsequent garbage collection.
#[getter]
fn peak_allocated_bytes(&self) -> usize {
self.0.peak_allocated_bytes()
}
/// Number of bytes allocated by the heap but not yet filled.
#[getter]
fn available_bytes(&self) -> usize {
self.0.available_bytes()
}
/// Obtain a summary of how much memory is currently allocated by this heap.
fn allocated_summary(&self) -> PyHeapSummary {
self.0.allocated_summary().summary().into()
}
}
#[pyclass(module = "xingque", name = "Value", frozen)]
pub(crate) struct PyValue(pub(crate) Value<'static>);
impl<'v> From<Value<'v>> for PyValue {
fn from(value: Value<'v>) -> Self {
// TODO: safety
Self(unsafe { ::core::mem::transmute(value) })
}
}
#[pymethods]
impl PyValue {
fn __repr__(&self) -> String {
format!("<Starlark value {}>", self.0)
}
}
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
tests/test_codemap.py | Python | import xingque
def test_pos():
a = xingque.Pos(233)
b = xingque.Pos(233)
c = xingque.Pos(234)
assert a.get() == 233
assert int(a) == 233
assert a == 233
assert a == b
assert a + 1 == c
b += 1
assert b == c
assert a != 233.0
assert a != "233"
assert a != None
assert a != (lambda x: x + 1)
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
tests/test_environment.py | Python | import gc
import pytest
import xingque
def test_globals_empty():
x = xingque.Globals()
assert not list(x.names())
assert x.describe() == ""
assert x.docstring is None
def test_globals_standard():
x = xingque.Globals.standard()
assert len(list(x.names())) > 0
assert len(x.describe()) > 0
assert x.docstring is None
def test_globals_extended_by():
list_of_exts = (
xingque.LibraryExtension.MAP,
xingque.LibraryExtension.DEBUG,
xingque.LibraryExtension.PPRINT,
)
for ty in (tuple, list, set, frozenset):
x = xingque.Globals.extended_by(ty(list_of_exts))
set_of_names = set(x.names())
assert "map" in set_of_names
assert "filter" not in set_of_names
assert "debug" in set_of_names
assert "pprint" in set_of_names
def test_globals_iter_gc():
x = xingque.Globals.standard()
it1 = x.names()
it2 = x.__iter__()
del x
gc.collect()
# these calls should not crash even though the Python-side reference to
# the Globals was gone
assert it1.__next__()
assert it2.__next__()
def test_globals_builder():
class Opaque:
pass
opaque = Opaque()
kv = {
"foo0": None,
"foo1": False,
"foo2": True,
"foo3": 233,
"foo4": -233,
"foo5": 0x80000000,
"foo6": -0x100000000,
"foo7": 1234567890123456789012345678901234567890,
"foo8": 3.14,
"foo9": "bar",
"foo10": [None, 123, "quux", {1: 2, "aa": None, "l": [False, 0.1, opaque]}],
"foo11": {"a": [123, 1 << 100], "b": False, 233: 234, None: {1: 2, 3: ""}},
"foo12": opaque,
"foo13": ...,
}
gb = xingque.GlobalsBuilder()
for k, v in kv.items():
gb.set(k, v)
g = gb.build()
set_of_names = set(g.names())
assert len(set_of_names) == len(kv)
for k, v in g:
assert isinstance(k, str)
assert k in kv
assert v == kv[k]
if k in {"foo12", "foo13"}:
assert v is kv[k]
def test_module_extra_value():
m = xingque.Module()
assert m.extra_value is None
v = lambda x: x + 1
m.extra_value = v
assert m.extra_value is v
def test_module_freeze():
m = xingque.Module()
m.set("a", 233)
m.set("b", lambda x: x + 1)
m.extra_value = range(123)
fm = m.freeze()
assert fm.get("a") == 233
assert fm.get("b")(233) == 234
assert fm.extra_value == range(123)
with pytest.raises(RuntimeError):
m.get("a")
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
tests/test_smoke.py | Python | import functools
import xingque
def test_smoke():
text = """
def square(x):
return x * x
a = 42
b = square(a)
b + 1 + int(bool(233))
"""
am = xingque.AstModule.parse("test.star", text)
g = xingque.Globals.standard()
e = xingque.Evaluator()
result = e.eval_module(am, g)
assert result == 1766
assert set(e.module.names()) == {"a", "b", "square"}
assert e.module.get("a") == 42
sq = e.module.get("square")
assert e.eval_function(sq, 12) == 144
def test_load_stmt():
"""The original starlark-rust example "Enable the `load` statement" ported
to Python."""
def get_source(file: str) -> str:
if file == "a.star":
return "a = 7"
elif file == "b.star":
return "b = 6"
else:
return """
load('a.star', 'a')
load('b.star', 'b')
ab = a * b
"""
def get_module(file: str) -> xingque.FrozenModule:
ast = xingque.AstModule.parse(file, get_source(file), xingque.Dialect.STANDARD)
modules = {}
for load in ast.loads:
modules[load.module_id] = get_module(load.module_id)
loader = xingque.DictFileLoader(modules)
globals = xingque.Globals.standard()
module = xingque.Module()
eval = xingque.Evaluator(module)
eval.set_loader(loader)
eval.eval_module(ast, globals)
return module.freeze()
ab = get_module("ab.star")
assert ab.get("ab") == 42
def test_magic_method_forwarding():
@functools.total_ordering
class Foo:
def __init__(self) -> None:
self.methods_called: list[str]
self.setattr_value: dict[str, object]
# prevent infinite recursion
super().__setattr__("methods_called", [])
super().__setattr__("setattr_value", {})
def __bool__(self) -> bool:
self.methods_called.append("bool")
return False
def __eq__(self, other: object) -> bool:
self.methods_called.append("eq")
return other == 123
def __lt__(self, other: int) -> bool:
self.methods_called.append("lt")
return other < 123
def __len__(self) -> int:
self.methods_called.append("len")
return 111222
def __contains__(self, item: object) -> bool:
self.methods_called.append("contains")
return item == 123
def __call__(self, foo: int, bar: str) -> object:
self.methods_called.append("call")
assert foo == 123
assert bar == "baz"
return {"ok": True, "test": ["aaa", "bbb", "ccc"]}
def __getattr__(self, name: str) -> object:
self.methods_called.append(f"getattr:{name}")
if name == "nonexistent":
raise AttributeError
return f"return_{name}"
def __setattr__(self, name: str, value: object) -> None:
self.methods_called.append(f"setattr:{name}")
self.setattr_value[name] = value
def __pos__(self) -> str:
self.methods_called.append("pos")
return f"pos"
def __neg__(self) -> str:
self.methods_called.append("neg")
return f"neg"
def __add__(self, rhs: int) -> str:
self.methods_called.append("add")
return f"add:{rhs}"
def __sub__(self, rhs: int) -> str:
self.methods_called.append("sub")
return f"sub:{rhs}"
def __mul__(self, rhs: int) -> str:
self.methods_called.append("mul")
return f"mul:{rhs}"
def __truediv__(self, rhs: int) -> str:
self.methods_called.append("truediv")
return f"truediv:{rhs}"
def __floordiv__(self, rhs: int) -> str:
self.methods_called.append("floordiv")
return f"floordiv:{rhs}"
def __mod__(self, rhs: int) -> str:
self.methods_called.append("mod")
return f"mod:{rhs}"
def __lshift__(self, rhs: int) -> str:
self.methods_called.append("lshift")
return f"lshift:{rhs}"
def __rshift__(self, rhs: int) -> str:
self.methods_called.append("rshift")
return f"rshift:{rhs}"
def __and__(self, rhs: int) -> str:
self.methods_called.append("and")
return f"and:{rhs}"
def __or__(self, rhs: int) -> str:
self.methods_called.append("or")
return f"or:{rhs}"
def __xor__(self, rhs: int) -> str:
self.methods_called.append("xor")
return f"xor:{rhs}"
def __invert__(self) -> str:
self.methods_called.append("invert")
return f"invert"
text = """
to_bool = bool(foo)
eq = foo == 123
ne = foo != 123
le = foo <= 123
lt = foo < 123
ge = foo >= 123
gt = foo > 123
length = len(foo)
contains = 123 in foo
invoke = foo(123, bar='baz')
get_attr = foo.test_get_attr
foo.test_set_attr = any
has_attr1 = hasattr(foo, 'methods_called')
has_attr2 = hasattr(foo, 'nonexistent')
dir_attr = dir(foo)
pos = +foo
neg = -foo
add = foo + 123
sub = foo - 123
mul = foo * 123
div = foo / 123
floordiv = foo // 123
mod = foo % 123
lshift = foo << 123
rshift = foo >> 123
bitand = foo & 123
bitor = foo | 123
bitxor = foo ^ 123
bitnot = ~foo
"""
recorder = Foo()
am = xingque.AstModule.parse("test.star", text)
gb = xingque.GlobalsBuilder.standard()
gb.set("foo", recorder)
g = gb.build()
m = xingque.Module()
e = xingque.Evaluator(m)
e.eval_module(am, g)
assert recorder.methods_called == [
"bool",
"eq",
"eq",
"eq",
"eq",
"eq",
"eq",
"len",
"contains",
"call",
"getattr:test_get_attr",
"getattr:test_get_attr",
"setattr:test_set_attr",
"getattr:nonexistent",
"pos",
"neg",
"add",
"sub",
"mul",
"truediv",
"floordiv",
"mod",
"lshift",
"rshift",
"and",
"or",
"xor",
"invert",
]
assert not m.get("to_bool")
assert m.get("eq")
assert not m.get("ne")
assert m.get("le")
assert not m.get("lt")
assert m.get("ge")
assert not m.get("gt")
assert m.get("length") == 111222
assert m.get("contains")
assert m.get("invoke") == {"ok": True, "test": ["aaa", "bbb", "ccc"]}
assert m.get("get_attr") == "return_test_get_attr"
assert set(recorder.setattr_value.keys()) == {
"test_set_attr",
}
assert m.get("has_attr1")
assert not m.get("has_attr2")
assert m.get("dir_attr") == dir(recorder)
assert m.get("pos") == "pos"
assert m.get("neg") == "neg"
assert m.get("add") == "add:123"
assert m.get("sub") == "sub:123"
assert m.get("mul") == "mul:123"
assert m.get("div") == "truediv:123"
assert m.get("floordiv") == "floordiv:123"
assert m.get("mod") == "mod:123"
assert m.get("lshift") == "lshift:123"
assert m.get("rshift") == "rshift:123"
assert m.get("bitand") == "and:123"
assert m.get("bitor") == "or:123"
assert m.get("bitxor") == "xor:123"
assert m.get("bitnot") == "invert"
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
tests/test_values.py | Python | import xingque
def test_empty_heap():
h = xingque.Heap()
assert h.allocated_bytes == 0
assert h.peak_allocated_bytes == 0
assert h.available_bytes == 0
s = h.allocated_summary()
assert s.summary() == {}
assert s.total_allocated_bytes == 0
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
xingque.pyi | Python | from typing import Callable, Iterable, Iterator, Protocol, Self
VERSION: str
STARLARK_RUST_VERSION: str
# starlark::codemap
class CodeMap:
def __init__(self, filename: str, source: str) -> None: ...
# TODO: empty_static
def full_span(self) -> Span: ...
def file_span(self, span: Span) -> FileSpan: ...
@property
def filename(self) -> str: ...
def byte_at(self, pos: Pos) -> int: ...
def find_line(self, pos: Pos) -> int: ...
@property
def source(self) -> str: ...
def source_span(self, span: Span) -> str: ...
def line_span(self, line: int) -> Span: ...
def line_span_opt(self, line: int) -> Span | None: ...
def resolve_span(self, span: Span) -> ResolvedSpan: ...
def source_line(self, line: int) -> str: ...
def source_line_at_pos(self, pos: Pos) -> str: ...
class FileSpan:
def __init__(self, filename: str, source: str) -> None: ...
@property
def file(self) -> CodeMap: ...
@property
def span(self) -> Span: ...
@property
def filename(self) -> str: ...
@property
def source_span(self) -> str: ...
def resolve_span(self) -> ResolvedSpan: ...
def resolve(self) -> ResolvedFileSpan: ...
class Pos:
def __init__(self, x: int) -> None: ...
def __eq__(self, other: object) -> bool: ...
def get(self) -> int: ...
def __int__(self) -> int: ...
def __add__(self, other: int) -> Self: ...
def __iadd__(self, other: int) -> None: ...
class ResolvedFileLine:
file: str
line: int
def __init__(self, file: str, line: int) -> None: ...
def __eq__(self, other: object) -> bool: ...
def __hash__(self) -> int: ...
class ResolvedFileSpan:
file: str
span: ResolvedSpan
def __init__(self, file: str, span: ResolvedSpan) -> None: ...
def __eq__(self, other: object) -> bool: ...
def __hash__(self) -> int: ...
def begin_file_line(self) -> ResolvedFileLine: ...
class ResolvedPos:
def __init__(self, line: int, column: int) -> None: ...
def __eq__(self, other: object) -> bool: ...
def __hash__(self) -> int: ...
@property
def line(self) -> int: ...
@property
def column(self) -> int: ...
class ResolvedSpan:
def __init__(self, begin: ResolvedPos, end: ResolvedPos) -> None: ...
def __eq__(self, other: object) -> bool: ...
def __hash__(self) -> int: ...
@property
def begin(self) -> ResolvedPos: ...
@property
def end(self) -> ResolvedPos: ...
def __contains__(self, pos: ResolvedPos) -> bool: ...
def contains(self, pos: ResolvedPos) -> bool: ...
class Span:
def __init__(self, begin: Pos, end: Pos) -> None: ...
def __eq__(self, other: object) -> bool: ...
@property
def begin(self) -> Pos: ...
@property
def end(self) -> Pos: ...
def merge(self, other: Self) -> Self: ...
# TODO: merge_all
def end_span(self) -> Self: ...
def __contains__(self, pos: Pos | int) -> bool: ...
def contains(self, pos: Pos | int) -> bool: ...
# starlark::environment
class FrozenModule:
@staticmethod
def from_globals(globals: Globals) -> FrozenModule: ...
def get_option(self, name: str) -> object | None: ...
def get(self, name: str) -> object | None: ...
def names(self) -> Iterator[str]: ...
def describe(self) -> str: ...
# TODO: documentation
# TODO: aggregated_heap_profile_info
@property
def extra_value(self) -> object | None: ...
class Globals:
def __init__(self) -> None: ...
@staticmethod
def standard() -> Globals: ...
@staticmethod
def extended_by(extensions: Iterable[LibraryExtension]) -> Globals: ...
def names(self) -> Iterator[str]: ...
def __iter__(self) -> Iterator[tuple[str, object]]: ...
def describe(self) -> str: ...
@property
def docstring(self) -> str | None: ...
# TODO: documentation
class GlobalsBuilder:
def __init__(self) -> None: ...
@staticmethod
def standard() -> GlobalsBuilder: ...
@staticmethod
def extended_by(extensions: Iterable[LibraryExtension]) -> GlobalsBuilder: ...
def struct(self, name: str, f: Callable[[_SubGlobalsBuilder], None]) -> None: ...
def with_(self, f: Callable[[_SubGlobalsBuilder], None]) -> Self: ...
def with_struct(
self, name: str, f: Callable[[_SubGlobalsBuilder], None]
) -> Self: ...
def build(self) -> Globals: ...
def set(self, name: str, value: object) -> None: ...
# TODO: set_function
class _SubGlobalsBuilder:
def struct(self, name: str, f: Callable[[_SubGlobalsBuilder], None]) -> None: ...
def with_(self, f: Callable[[_SubGlobalsBuilder], None]) -> Self: ...
def with_struct(
self, name: str, f: Callable[[_SubGlobalsBuilder], None]
) -> Self: ...
def set(self, name: str, value: object) -> None: ...
class LibraryExtension:
STRUCT_TYPE: LibraryExtension
"""Definitions to support the `struct` type, the `struct()` constructor."""
RECORD_TYPE: LibraryExtension
"""Definitions to support the `record` type, the `record()` constructor and `field()` function."""
ENUM_TYPE: LibraryExtension
"""Definitions to support the `enum` type, the `enum()` constructor."""
MAP: LibraryExtension
"""A function `map(f, xs)` which applies `f` to each element of `xs` and returns the result."""
FILTER: LibraryExtension
"""A function `filter(f, xs)` which applies `f` to each element of `xs` and returns those for which `f` returns `True`.
As a special case, `filter(None, xs)` removes all `None` values.
"""
PARTIAL: LibraryExtension
"""Partially apply a function, `partial(f, *args, **kwargs)` will create a function where those `args` `kwargs`
are already applied to `f`.
"""
DEBUG: LibraryExtension
"""Add a function `debug(x)` which shows the Rust `Debug` representation of a value.
Useful when debugging, but the output should not be considered stable.
"""
PRINT: LibraryExtension
"""Add a function `print(x)` which prints to stderr."""
PPRINT: LibraryExtension
"""Add a function `pprint(x)` which pretty-prints to stderr."""
BREAKPOINT: LibraryExtension
"""Add a function `breakpoint()` which will drop into a console-module evaluation prompt."""
JSON: LibraryExtension
"""Add a function `json()` which will generate JSON for a module."""
TYPING: LibraryExtension
"""Provides `typing.All`, `typing.Callable` etc.
Usually used in conjunction with `Dialect.enable_types`."""
INTERNAL: LibraryExtension
"""Utilities exposing starlark-rust internals.
These are not for production use."""
CALL_STACK: LibraryExtension
"""Add a function `call_stack()` which returns a string representation of
the current call stack."""
class Module:
extra_value: object | None = None
def __init__(self) -> None: ...
def names(self) -> Iterator[str]: ...
def get(self, name: str) -> object: ...
def set(self, name: str, value: object) -> None: ...
def freeze(self) -> FrozenModule: ...
# starlark::errors
class Frame:
@property
def name(self) -> str: ...
@property
def location(self) -> FileSpan | None: ...
# TODO: write_two_lines
# starlark::eval
class _FileLoader(Protocol):
def load(self, path: str) -> FrozenModule: ...
class _PrintHandler(Protocol):
def println(self, text: str) -> None: ...
class DictFileLoader:
def __init__(self, modules: dict[str, FrozenModule]) -> None: ...
def load(self, path: str) -> FrozenModule: ...
class CallStack:
@property
def frames(self) -> list[Frame]: ...
def is_empty(self) -> bool: ...
class Evaluator:
def __init__(self, module: Module | None = None) -> None: ...
def disable_gc(self) -> None: ...
def eval_statements(self, statements: AstModule) -> object: ...
def local_variables(self) -> dict[str, object]: ...
def verbose_gc(self) -> None: ...
def enable_static_typechecking(self, enable: bool) -> None: ...
def set_loader(self, loader: _FileLoader) -> None: ...
def enable_profile(self, mode: ProfileMode) -> None: ...
# TODO: write_profile
# TODO: gen_profile
def coverage(self) -> set[ResolvedFileSpan]: ...
def enable_terminal_breakpoint_console(self) -> None: ...
def call_stack(self) -> CallStack: ...
def call_stack_top_frame(self) -> Frame | None: ...
def call_stack_count(self) -> int: ...
def call_stack_top_location(self) -> FileSpan | None: ...
def set_print_handler(self, handler: _PrintHandler | None) -> None: ...
# TODO: heap
@property
def module(self) -> Module: ...
# TODO: frozen_heap
# TODO: set_module_variable_at_some_point (is this okay to expose?)
def set_max_callstack_size(self, stack_size: int) -> None: ...
def eval_module(self, ast: AstModule, globals: Globals) -> object: ...
def eval_function(
self,
function: object,
*args: object,
**kwargs: object,
) -> object: ...
class ProfileMode:
"""How to profile starlark code."""
HEAP_SUMMARY_ALLOCATED: ProfileMode
"""The heap profile mode provides information about the time spent in each function and allocations
performed by each function. Enabling this mode the side effect of disabling garbage-collection.
This profiling mode is the recommended one.
"""
HEAP_SUMMARY_RETAINED: ProfileMode
"""Like heap summary, but information about retained memory after module is frozen."""
HEAP_FLAME_ALLOCATED: ProfileMode
"""Like heap profile, but writes output comparible with
[flamegraph.pl](https://github.com/brendangregg/FlameGraph/blob/master/flamegraph.pl).
"""
HEAP_FLAME_RETAINED: ProfileMode
"""Like heap flame, but information about retained memory after module is frozen."""
STATEMENT: ProfileMode
"""The statement profile mode provides information about time spent in each statement."""
COVERAGE: ProfileMode
"""Code coverage."""
BYTECODE: ProfileMode
"""The bytecode profile mode provides information about bytecode instructions."""
BYTECODE_PAIRS: ProfileMode
"""The bytecode profile mode provides information about bytecode instruction pairs."""
TIME_FLAME: ProfileMode
"""Provide output compatible with
[flamegraph.pl](https://github.com/brendangregg/FlameGraph/blob/master/flamegraph.pl).
"""
TYPECHECK: ProfileMode
"""Profile runtime typechecking."""
# starlark::syntax
class DialectTypes:
DISABLE: DialectTypes
PARSE_ONLY: DialectTypes
ENABLE: DialectTypes
class Dialect:
enable_def: bool
enable_lambda: bool
enable_load: bool
enable_keyword_only_arguments: bool
enable_types: DialectTypes
enable_load_reexport: bool
enable_top_level_stmt: bool
enable_f_strings: bool
def __init__(
self,
enable_def: bool = False,
enable_lambda: bool = False,
enable_load: bool = False,
enable_keyword_only_arguments: bool = False,
enable_types: DialectTypes = DialectTypes.DISABLE,
enable_load_reexport: bool = False,
enable_top_level_stmt: bool = False,
enable_f_strings: bool = False,
) -> None: ...
EXTENDED: Dialect
STANDARD: Dialect
class AstLoad:
@property
def span(self) -> FileSpan: ...
@property
def module_id(self) -> str: ...
@property
def symbols(self) -> dict[str, str]: ...
class AstModule:
@staticmethod
def parse_file(path: str, dialect: Dialect = Dialect.STANDARD) -> AstModule: ...
@staticmethod
def parse(
filename: str,
content: str,
dialect: Dialect = Dialect.STANDARD,
) -> AstModule: ...
@property
def loads(self) -> list[AstLoad]: ...
def file_span(self, x: Span) -> FileSpan: ...
@property
def stmt_locations(self) -> list[FileSpan]: ...
def replace_binary_operators(self, replace: dict[str, str]) -> None: ...
# starlark::values
class FrozenValue:
pass
class HeapSummary:
def summary(self) -> dict[str, tuple[int, int]]: ...
@property
def total_allocated_bytes(self) -> int: ...
class Heap:
def __init__(self) -> None: ...
@property
def allocated_bytes(self) -> int: ...
@property
def peak_allocated_bytes(self) -> int: ...
@property
def available_bytes(self) -> int: ...
def allocated_summary(self) -> HeapSummary: ...
class Value:
pass
| xen0n/xingque | 7 | ✨🐦 Typed Python binding to starlark-rust that proxies your objects | Rust | xen0n | WÁNG Xuěruì | gentoo |
android-project/app/build.gradle | Gradle | def buildAsLibrary = project.hasProperty('BUILD_AS_LIBRARY');
def buildAsApplication = !buildAsLibrary
if (buildAsApplication) {
apply plugin: 'com.android.application'
}
else {
apply plugin: 'com.android.library'
}
android {
compileSdkVersion 31
defaultConfig {
if (buildAsApplication) {
applicationId "com.borealis.demo"
}
minSdkVersion 16
targetSdkVersion 31
versionCode 1
versionName "1.0"
// borealis need at least ndk r22 (r21 don't have std::filesystem support)
// The newer NDK library will cause lower versions of Android failed to run.
// r26: support api21 and later
// r24/r25: support api19 and later
// r22/23: support api16 and later
ndkVersion "22.1.7171670"
externalNativeBuild {
cmake {
arguments "-DANDROID_APP_PLATFORM=android-16", "-DANDROID_STL=c++_static"
// abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
abiFilters 'armeabi-v7a', 'arm64-v8a'
version = '3.16.0+'
}
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
applicationVariants.all { variant ->
tasks["merge${variant.name.capitalize()}Assets"]
.dependsOn("externalNativeBuild${variant.name.capitalize()}")
}
if (!project.hasProperty('EXCLUDE_NATIVE_LIBS')) {
sourceSets.main {
jniLibs.srcDir 'libs'
}
externalNativeBuild {
cmake {
path 'jni/CMakeLists.txt'
version = '3.16.0+'
}
}
}
lintOptions {
abortOnError false
}
if (buildAsLibrary) {
libraryVariants.all { variant ->
variant.outputs.each { output ->
def outputFile = output.outputFile
if (outputFile != null && outputFile.name.endsWith(".aar")) {
def fileName = "org.libsdl.app.aar";
output.outputFile = new File(outputFile.parent, fileName);
}
}
}
}
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/com/borealis/demo/DemoActivity.java | Java | package com.borealis.demo;
import android.os.Bundle;
import org.libsdl.app.BorealisHandler;
import org.libsdl.app.PlatformUtils;
import org.libsdl.app.SDLActivity;
public class DemoActivity extends SDLActivity
{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Currently we use handler to receive brightness changes from borealis
PlatformUtils.borealisHandler = new BorealisHandler();
}
@Override
protected void onDestroy() {
super.onDestroy();
// Android does not recommend using exit(0) directly,
// but borealis heavily uses static variables,
// which can cause some problems when reloading the program.
// In SDL3, we can use SDL_HINT_ANDROID_ALLOW_RECREATE_ACTIVITY to control the behavior
// In SDL2, Force exit of the app.
System.exit(0);
}
@Override
protected String[] getLibraries() {
// Load SDL2 and borealis demo app
return new String[] {
"SDL2",
"borealis_demo"
};
}
} | xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/BorealisHandler.java | Java | package org.libsdl.app;
import android.app.Activity;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Window;
import android.view.WindowManager;
public class BorealisHandler extends Handler {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
switch (msg.what) {
case 0:
Window window = ((Activity)msg.obj).getWindow();
WindowManager.LayoutParams lp = window.getAttributes();
lp.screenBrightness = msg.arg1 / 255.0f;
if (lp.screenBrightness < 0.04) lp.screenBrightness = 0.04f;
window.setAttributes(lp);
break;
}
}
} | xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/HIDDevice.java | Java | package org.libsdl.app;
import android.hardware.usb.UsbDevice;
interface HIDDevice
{
public int getId();
public int getVendorId();
public int getProductId();
public String getSerialNumber();
public int getVersion();
public String getManufacturerName();
public String getProductName();
public UsbDevice getDevice();
public boolean open();
public int sendFeatureReport(byte[] report);
public int sendOutputReport(byte[] report);
public boolean getFeatureReport(byte[] report);
public void setFrozen(boolean frozen);
public void close();
public void shutdown();
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/HIDDeviceBLESteamController.java | Java | package org.libsdl.app;
import android.content.Context;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.bluetooth.BluetoothGattService;
import android.hardware.usb.UsbDevice;
import android.os.Handler;
import android.os.Looper;
import android.util.Log;
import android.os.*;
//import com.android.internal.util.HexDump;
import java.lang.Runnable;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.UUID;
class HIDDeviceBLESteamController extends BluetoothGattCallback implements HIDDevice {
private static final String TAG = "hidapi";
private HIDDeviceManager mManager;
private BluetoothDevice mDevice;
private int mDeviceId;
private BluetoothGatt mGatt;
private boolean mIsRegistered = false;
private boolean mIsConnected = false;
private boolean mIsChromebook = false;
private boolean mIsReconnecting = false;
private boolean mFrozen = false;
private LinkedList<GattOperation> mOperations;
GattOperation mCurrentOperation = null;
private Handler mHandler;
private static final int TRANSPORT_AUTO = 0;
private static final int TRANSPORT_BREDR = 1;
private static final int TRANSPORT_LE = 2;
private static final int CHROMEBOOK_CONNECTION_CHECK_INTERVAL = 10000;
static public final UUID steamControllerService = UUID.fromString("100F6C32-1735-4313-B402-38567131E5F3");
static public final UUID inputCharacteristic = UUID.fromString("100F6C33-1735-4313-B402-38567131E5F3");
static public final UUID reportCharacteristic = UUID.fromString("100F6C34-1735-4313-B402-38567131E5F3");
static private final byte[] enterValveMode = new byte[] { (byte)0xC0, (byte)0x87, 0x03, 0x08, 0x07, 0x00 };
static class GattOperation {
private enum Operation {
CHR_READ,
CHR_WRITE,
ENABLE_NOTIFICATION
}
Operation mOp;
UUID mUuid;
byte[] mValue;
BluetoothGatt mGatt;
boolean mResult = true;
private GattOperation(BluetoothGatt gatt, GattOperation.Operation operation, UUID uuid) {
mGatt = gatt;
mOp = operation;
mUuid = uuid;
}
private GattOperation(BluetoothGatt gatt, GattOperation.Operation operation, UUID uuid, byte[] value) {
mGatt = gatt;
mOp = operation;
mUuid = uuid;
mValue = value;
}
public void run() {
// This is executed in main thread
BluetoothGattCharacteristic chr;
switch (mOp) {
case CHR_READ:
chr = getCharacteristic(mUuid);
//Log.v(TAG, "Reading characteristic " + chr.getUuid());
if (!mGatt.readCharacteristic(chr)) {
Log.e(TAG, "Unable to read characteristic " + mUuid.toString());
mResult = false;
break;
}
mResult = true;
break;
case CHR_WRITE:
chr = getCharacteristic(mUuid);
//Log.v(TAG, "Writing characteristic " + chr.getUuid() + " value=" + HexDump.toHexString(value));
chr.setValue(mValue);
if (!mGatt.writeCharacteristic(chr)) {
Log.e(TAG, "Unable to write characteristic " + mUuid.toString());
mResult = false;
break;
}
mResult = true;
break;
case ENABLE_NOTIFICATION:
chr = getCharacteristic(mUuid);
//Log.v(TAG, "Writing descriptor of " + chr.getUuid());
if (chr != null) {
BluetoothGattDescriptor cccd = chr.getDescriptor(UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"));
if (cccd != null) {
int properties = chr.getProperties();
byte[] value;
if ((properties & BluetoothGattCharacteristic.PROPERTY_NOTIFY) == BluetoothGattCharacteristic.PROPERTY_NOTIFY) {
value = BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
} else if ((properties & BluetoothGattCharacteristic.PROPERTY_INDICATE) == BluetoothGattCharacteristic.PROPERTY_INDICATE) {
value = BluetoothGattDescriptor.ENABLE_INDICATION_VALUE;
} else {
Log.e(TAG, "Unable to start notifications on input characteristic");
mResult = false;
return;
}
mGatt.setCharacteristicNotification(chr, true);
cccd.setValue(value);
if (!mGatt.writeDescriptor(cccd)) {
Log.e(TAG, "Unable to write descriptor " + mUuid.toString());
mResult = false;
return;
}
mResult = true;
}
}
}
}
public boolean finish() {
return mResult;
}
private BluetoothGattCharacteristic getCharacteristic(UUID uuid) {
BluetoothGattService valveService = mGatt.getService(steamControllerService);
if (valveService == null)
return null;
return valveService.getCharacteristic(uuid);
}
static public GattOperation readCharacteristic(BluetoothGatt gatt, UUID uuid) {
return new GattOperation(gatt, Operation.CHR_READ, uuid);
}
static public GattOperation writeCharacteristic(BluetoothGatt gatt, UUID uuid, byte[] value) {
return new GattOperation(gatt, Operation.CHR_WRITE, uuid, value);
}
static public GattOperation enableNotification(BluetoothGatt gatt, UUID uuid) {
return new GattOperation(gatt, Operation.ENABLE_NOTIFICATION, uuid);
}
}
public HIDDeviceBLESteamController(HIDDeviceManager manager, BluetoothDevice device) {
mManager = manager;
mDevice = device;
mDeviceId = mManager.getDeviceIDForIdentifier(getIdentifier());
mIsRegistered = false;
mIsChromebook = mManager.getContext().getPackageManager().hasSystemFeature("org.chromium.arc.device_management");
mOperations = new LinkedList<GattOperation>();
mHandler = new Handler(Looper.getMainLooper());
mGatt = connectGatt();
// final HIDDeviceBLESteamController finalThis = this;
// mHandler.postDelayed(new Runnable() {
// @Override
// public void run() {
// finalThis.checkConnectionForChromebookIssue();
// }
// }, CHROMEBOOK_CONNECTION_CHECK_INTERVAL);
}
public String getIdentifier() {
return String.format("SteamController.%s", mDevice.getAddress());
}
public BluetoothGatt getGatt() {
return mGatt;
}
// Because on Chromebooks we show up as a dual-mode device, it will attempt to connect TRANSPORT_AUTO, which will use TRANSPORT_BREDR instead
// of TRANSPORT_LE. Let's force ourselves to connect low energy.
private BluetoothGatt connectGatt(boolean managed) {
if (Build.VERSION.SDK_INT >= 23 /* Android 6.0 (M) */) {
try {
return mDevice.connectGatt(mManager.getContext(), managed, this, TRANSPORT_LE);
} catch (Exception e) {
return mDevice.connectGatt(mManager.getContext(), managed, this);
}
} else {
return mDevice.connectGatt(mManager.getContext(), managed, this);
}
}
private BluetoothGatt connectGatt() {
return connectGatt(false);
}
protected int getConnectionState() {
Context context = mManager.getContext();
if (context == null) {
// We are lacking any context to get our Bluetooth information. We'll just assume disconnected.
return BluetoothProfile.STATE_DISCONNECTED;
}
BluetoothManager btManager = (BluetoothManager)context.getSystemService(Context.BLUETOOTH_SERVICE);
if (btManager == null) {
// This device doesn't support Bluetooth. We should never be here, because how did
// we instantiate a device to start with?
return BluetoothProfile.STATE_DISCONNECTED;
}
return btManager.getConnectionState(mDevice, BluetoothProfile.GATT);
}
public void reconnect() {
if (getConnectionState() != BluetoothProfile.STATE_CONNECTED) {
mGatt.disconnect();
mGatt = connectGatt();
}
}
protected void checkConnectionForChromebookIssue() {
if (!mIsChromebook) {
// We only do this on Chromebooks, because otherwise it's really annoying to just attempt
// over and over.
return;
}
int connectionState = getConnectionState();
switch (connectionState) {
case BluetoothProfile.STATE_CONNECTED:
if (!mIsConnected) {
// We are in the Bad Chromebook Place. We can force a disconnect
// to try to recover.
Log.v(TAG, "Chromebook: We are in a very bad state; the controller shows as connected in the underlying Bluetooth layer, but we never received a callback. Forcing a reconnect.");
mIsReconnecting = true;
mGatt.disconnect();
mGatt = connectGatt(false);
break;
}
else if (!isRegistered()) {
if (mGatt.getServices().size() > 0) {
Log.v(TAG, "Chromebook: We are connected to a controller, but never got our registration. Trying to recover.");
probeService(this);
}
else {
Log.v(TAG, "Chromebook: We are connected to a controller, but never discovered services. Trying to recover.");
mIsReconnecting = true;
mGatt.disconnect();
mGatt = connectGatt(false);
break;
}
}
else {
Log.v(TAG, "Chromebook: We are connected, and registered. Everything's good!");
return;
}
break;
case BluetoothProfile.STATE_DISCONNECTED:
Log.v(TAG, "Chromebook: We have either been disconnected, or the Chromebook BtGatt.ContextMap bug has bitten us. Attempting a disconnect/reconnect, but we may not be able to recover.");
mIsReconnecting = true;
mGatt.disconnect();
mGatt = connectGatt(false);
break;
case BluetoothProfile.STATE_CONNECTING:
Log.v(TAG, "Chromebook: We're still trying to connect. Waiting a bit longer.");
break;
}
final HIDDeviceBLESteamController finalThis = this;
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
finalThis.checkConnectionForChromebookIssue();
}
}, CHROMEBOOK_CONNECTION_CHECK_INTERVAL);
}
private boolean isRegistered() {
return mIsRegistered;
}
private void setRegistered() {
mIsRegistered = true;
}
private boolean probeService(HIDDeviceBLESteamController controller) {
if (isRegistered()) {
return true;
}
if (!mIsConnected) {
return false;
}
Log.v(TAG, "probeService controller=" + controller);
for (BluetoothGattService service : mGatt.getServices()) {
if (service.getUuid().equals(steamControllerService)) {
Log.v(TAG, "Found Valve steam controller service " + service.getUuid());
for (BluetoothGattCharacteristic chr : service.getCharacteristics()) {
if (chr.getUuid().equals(inputCharacteristic)) {
Log.v(TAG, "Found input characteristic");
// Start notifications
BluetoothGattDescriptor cccd = chr.getDescriptor(UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"));
if (cccd != null) {
enableNotification(chr.getUuid());
}
}
}
return true;
}
}
if ((mGatt.getServices().size() == 0) && mIsChromebook && !mIsReconnecting) {
Log.e(TAG, "Chromebook: Discovered services were empty; this almost certainly means the BtGatt.ContextMap bug has bitten us.");
mIsConnected = false;
mIsReconnecting = true;
mGatt.disconnect();
mGatt = connectGatt(false);
}
return false;
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////
private void finishCurrentGattOperation() {
GattOperation op = null;
synchronized (mOperations) {
if (mCurrentOperation != null) {
op = mCurrentOperation;
mCurrentOperation = null;
}
}
if (op != null) {
boolean result = op.finish(); // TODO: Maybe in main thread as well?
// Our operation failed, let's add it back to the beginning of our queue.
if (!result) {
mOperations.addFirst(op);
}
}
executeNextGattOperation();
}
private void executeNextGattOperation() {
synchronized (mOperations) {
if (mCurrentOperation != null)
return;
if (mOperations.isEmpty())
return;
mCurrentOperation = mOperations.removeFirst();
}
// Run in main thread
mHandler.post(new Runnable() {
@Override
public void run() {
synchronized (mOperations) {
if (mCurrentOperation == null) {
Log.e(TAG, "Current operation null in executor?");
return;
}
mCurrentOperation.run();
// now wait for the GATT callback and when it comes, finish this operation
}
}
});
}
private void queueGattOperation(GattOperation op) {
synchronized (mOperations) {
mOperations.add(op);
}
executeNextGattOperation();
}
private void enableNotification(UUID chrUuid) {
GattOperation op = HIDDeviceBLESteamController.GattOperation.enableNotification(mGatt, chrUuid);
queueGattOperation(op);
}
public void writeCharacteristic(UUID uuid, byte[] value) {
GattOperation op = HIDDeviceBLESteamController.GattOperation.writeCharacteristic(mGatt, uuid, value);
queueGattOperation(op);
}
public void readCharacteristic(UUID uuid) {
GattOperation op = HIDDeviceBLESteamController.GattOperation.readCharacteristic(mGatt, uuid);
queueGattOperation(op);
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
////////////// BluetoothGattCallback overridden methods
//////////////////////////////////////////////////////////////////////////////////////////////////////
public void onConnectionStateChange(BluetoothGatt g, int status, int newState) {
//Log.v(TAG, "onConnectionStateChange status=" + status + " newState=" + newState);
mIsReconnecting = false;
if (newState == 2) {
mIsConnected = true;
// Run directly, without GattOperation
if (!isRegistered()) {
mHandler.post(new Runnable() {
@Override
public void run() {
mGatt.discoverServices();
}
});
}
}
else if (newState == 0) {
mIsConnected = false;
}
// Disconnection is handled in SteamLink using the ACTION_ACL_DISCONNECTED Intent.
}
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
//Log.v(TAG, "onServicesDiscovered status=" + status);
if (status == 0) {
if (gatt.getServices().size() == 0) {
Log.v(TAG, "onServicesDiscovered returned zero services; something has gone horribly wrong down in Android's Bluetooth stack.");
mIsReconnecting = true;
mIsConnected = false;
gatt.disconnect();
mGatt = connectGatt(false);
}
else {
probeService(this);
}
}
}
public void onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
//Log.v(TAG, "onCharacteristicRead status=" + status + " uuid=" + characteristic.getUuid());
if (characteristic.getUuid().equals(reportCharacteristic) && !mFrozen) {
mManager.HIDDeviceFeatureReport(getId(), characteristic.getValue());
}
finishCurrentGattOperation();
}
public void onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
//Log.v(TAG, "onCharacteristicWrite status=" + status + " uuid=" + characteristic.getUuid());
if (characteristic.getUuid().equals(reportCharacteristic)) {
// Only register controller with the native side once it has been fully configured
if (!isRegistered()) {
Log.v(TAG, "Registering Steam Controller with ID: " + getId());
mManager.HIDDeviceConnected(getId(), getIdentifier(), getVendorId(), getProductId(), getSerialNumber(), getVersion(), getManufacturerName(), getProductName(), 0, 0, 0, 0);
setRegistered();
}
}
finishCurrentGattOperation();
}
public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
// Enable this for verbose logging of controller input reports
//Log.v(TAG, "onCharacteristicChanged uuid=" + characteristic.getUuid() + " data=" + HexDump.dumpHexString(characteristic.getValue()));
if (characteristic.getUuid().equals(inputCharacteristic) && !mFrozen) {
mManager.HIDDeviceInputReport(getId(), characteristic.getValue());
}
}
public void onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
//Log.v(TAG, "onDescriptorRead status=" + status);
}
public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
BluetoothGattCharacteristic chr = descriptor.getCharacteristic();
//Log.v(TAG, "onDescriptorWrite status=" + status + " uuid=" + chr.getUuid() + " descriptor=" + descriptor.getUuid());
if (chr.getUuid().equals(inputCharacteristic)) {
boolean hasWrittenInputDescriptor = true;
BluetoothGattCharacteristic reportChr = chr.getService().getCharacteristic(reportCharacteristic);
if (reportChr != null) {
Log.v(TAG, "Writing report characteristic to enter valve mode");
reportChr.setValue(enterValveMode);
gatt.writeCharacteristic(reportChr);
}
}
finishCurrentGattOperation();
}
public void onReliableWriteCompleted(BluetoothGatt gatt, int status) {
//Log.v(TAG, "onReliableWriteCompleted status=" + status);
}
public void onReadRemoteRssi(BluetoothGatt gatt, int rssi, int status) {
//Log.v(TAG, "onReadRemoteRssi status=" + status);
}
public void onMtuChanged(BluetoothGatt gatt, int mtu, int status) {
//Log.v(TAG, "onMtuChanged status=" + status);
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
//////// Public API
//////////////////////////////////////////////////////////////////////////////////////////////////////
@Override
public int getId() {
return mDeviceId;
}
@Override
public int getVendorId() {
// Valve Corporation
final int VALVE_USB_VID = 0x28DE;
return VALVE_USB_VID;
}
@Override
public int getProductId() {
// We don't have an easy way to query from the Bluetooth device, but we know what it is
final int D0G_BLE2_PID = 0x1106;
return D0G_BLE2_PID;
}
@Override
public String getSerialNumber() {
// This will be read later via feature report by Steam
return "12345";
}
@Override
public int getVersion() {
return 0;
}
@Override
public String getManufacturerName() {
return "Valve Corporation";
}
@Override
public String getProductName() {
return "Steam Controller";
}
@Override
public UsbDevice getDevice() {
return null;
}
@Override
public boolean open() {
return true;
}
@Override
public int sendFeatureReport(byte[] report) {
if (!isRegistered()) {
Log.e(TAG, "Attempted sendFeatureReport before Steam Controller is registered!");
if (mIsConnected) {
probeService(this);
}
return -1;
}
// We need to skip the first byte, as that doesn't go over the air
byte[] actual_report = Arrays.copyOfRange(report, 1, report.length - 1);
//Log.v(TAG, "sendFeatureReport " + HexDump.dumpHexString(actual_report));
writeCharacteristic(reportCharacteristic, actual_report);
return report.length;
}
@Override
public int sendOutputReport(byte[] report) {
if (!isRegistered()) {
Log.e(TAG, "Attempted sendOutputReport before Steam Controller is registered!");
if (mIsConnected) {
probeService(this);
}
return -1;
}
//Log.v(TAG, "sendFeatureReport " + HexDump.dumpHexString(report));
writeCharacteristic(reportCharacteristic, report);
return report.length;
}
@Override
public boolean getFeatureReport(byte[] report) {
if (!isRegistered()) {
Log.e(TAG, "Attempted getFeatureReport before Steam Controller is registered!");
if (mIsConnected) {
probeService(this);
}
return false;
}
//Log.v(TAG, "getFeatureReport");
readCharacteristic(reportCharacteristic);
return true;
}
@Override
public void close() {
}
@Override
public void setFrozen(boolean frozen) {
mFrozen = frozen;
}
@Override
public void shutdown() {
close();
BluetoothGatt g = mGatt;
if (g != null) {
g.disconnect();
g.close();
mGatt = null;
}
mManager = null;
mIsRegistered = false;
mIsConnected = false;
mOperations.clear();
}
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/HIDDeviceManager.java | Java | package org.libsdl.app;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.PendingIntent;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.os.Build;
import android.util.Log;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.hardware.usb.*;
import android.os.Handler;
import android.os.Looper;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
public class HIDDeviceManager {
private static final String TAG = "hidapi";
private static final String ACTION_USB_PERMISSION = "org.libsdl.app.USB_PERMISSION";
private static HIDDeviceManager sManager;
private static int sManagerRefCount = 0;
public static HIDDeviceManager acquire(Context context) {
if (sManagerRefCount == 0) {
sManager = new HIDDeviceManager(context);
}
++sManagerRefCount;
return sManager;
}
public static void release(HIDDeviceManager manager) {
if (manager == sManager) {
--sManagerRefCount;
if (sManagerRefCount == 0) {
sManager.close();
sManager = null;
}
}
}
private Context mContext;
private HashMap<Integer, HIDDevice> mDevicesById = new HashMap<Integer, HIDDevice>();
private HashMap<BluetoothDevice, HIDDeviceBLESteamController> mBluetoothDevices = new HashMap<BluetoothDevice, HIDDeviceBLESteamController>();
private int mNextDeviceId = 0;
private SharedPreferences mSharedPreferences = null;
private boolean mIsChromebook = false;
private UsbManager mUsbManager;
private Handler mHandler;
private BluetoothManager mBluetoothManager;
private List<BluetoothDevice> mLastBluetoothDevices;
private final BroadcastReceiver mUsbBroadcast = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(UsbManager.ACTION_USB_DEVICE_ATTACHED)) {
UsbDevice usbDevice = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
handleUsbDeviceAttached(usbDevice);
} else if (action.equals(UsbManager.ACTION_USB_DEVICE_DETACHED)) {
UsbDevice usbDevice = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
handleUsbDeviceDetached(usbDevice);
} else if (action.equals(HIDDeviceManager.ACTION_USB_PERMISSION)) {
UsbDevice usbDevice = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
handleUsbDevicePermission(usbDevice, intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false));
}
}
};
private final BroadcastReceiver mBluetoothBroadcast = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
// Bluetooth device was connected. If it was a Steam Controller, handle it
if (action.equals(BluetoothDevice.ACTION_ACL_CONNECTED)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
Log.d(TAG, "Bluetooth device connected: " + device);
if (isSteamController(device)) {
connectBluetoothDevice(device);
}
}
// Bluetooth device was disconnected, remove from controller manager (if any)
if (action.equals(BluetoothDevice.ACTION_ACL_DISCONNECTED)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
Log.d(TAG, "Bluetooth device disconnected: " + device);
disconnectBluetoothDevice(device);
}
}
};
private HIDDeviceManager(final Context context) {
mContext = context;
HIDDeviceRegisterCallback();
mSharedPreferences = mContext.getSharedPreferences("hidapi", Context.MODE_PRIVATE);
mIsChromebook = mContext.getPackageManager().hasSystemFeature("org.chromium.arc.device_management");
// if (shouldClear) {
// SharedPreferences.Editor spedit = mSharedPreferences.edit();
// spedit.clear();
// spedit.commit();
// }
// else
{
mNextDeviceId = mSharedPreferences.getInt("next_device_id", 0);
}
}
public Context getContext() {
return mContext;
}
public int getDeviceIDForIdentifier(String identifier) {
SharedPreferences.Editor spedit = mSharedPreferences.edit();
int result = mSharedPreferences.getInt(identifier, 0);
if (result == 0) {
result = mNextDeviceId++;
spedit.putInt("next_device_id", mNextDeviceId);
}
spedit.putInt(identifier, result);
spedit.commit();
return result;
}
private void initializeUSB() {
mUsbManager = (UsbManager)mContext.getSystemService(Context.USB_SERVICE);
if (mUsbManager == null) {
return;
}
/*
// Logging
for (UsbDevice device : mUsbManager.getDeviceList().values()) {
Log.i(TAG,"Path: " + device.getDeviceName());
Log.i(TAG,"Manufacturer: " + device.getManufacturerName());
Log.i(TAG,"Product: " + device.getProductName());
Log.i(TAG,"ID: " + device.getDeviceId());
Log.i(TAG,"Class: " + device.getDeviceClass());
Log.i(TAG,"Protocol: " + device.getDeviceProtocol());
Log.i(TAG,"Vendor ID " + device.getVendorId());
Log.i(TAG,"Product ID: " + device.getProductId());
Log.i(TAG,"Interface count: " + device.getInterfaceCount());
Log.i(TAG,"---------------------------------------");
// Get interface details
for (int index = 0; index < device.getInterfaceCount(); index++) {
UsbInterface mUsbInterface = device.getInterface(index);
Log.i(TAG," ***** *****");
Log.i(TAG," Interface index: " + index);
Log.i(TAG," Interface ID: " + mUsbInterface.getId());
Log.i(TAG," Interface class: " + mUsbInterface.getInterfaceClass());
Log.i(TAG," Interface subclass: " + mUsbInterface.getInterfaceSubclass());
Log.i(TAG," Interface protocol: " + mUsbInterface.getInterfaceProtocol());
Log.i(TAG," Endpoint count: " + mUsbInterface.getEndpointCount());
// Get endpoint details
for (int epi = 0; epi < mUsbInterface.getEndpointCount(); epi++)
{
UsbEndpoint mEndpoint = mUsbInterface.getEndpoint(epi);
Log.i(TAG," ++++ ++++ ++++");
Log.i(TAG," Endpoint index: " + epi);
Log.i(TAG," Attributes: " + mEndpoint.getAttributes());
Log.i(TAG," Direction: " + mEndpoint.getDirection());
Log.i(TAG," Number: " + mEndpoint.getEndpointNumber());
Log.i(TAG," Interval: " + mEndpoint.getInterval());
Log.i(TAG," Packet size: " + mEndpoint.getMaxPacketSize());
Log.i(TAG," Type: " + mEndpoint.getType());
}
}
}
Log.i(TAG," No more devices connected.");
*/
// Register for USB broadcasts and permission completions
IntentFilter filter = new IntentFilter();
filter.addAction(UsbManager.ACTION_USB_DEVICE_ATTACHED);
filter.addAction(UsbManager.ACTION_USB_DEVICE_DETACHED);
filter.addAction(HIDDeviceManager.ACTION_USB_PERMISSION);
mContext.registerReceiver(mUsbBroadcast, filter);
for (UsbDevice usbDevice : mUsbManager.getDeviceList().values()) {
handleUsbDeviceAttached(usbDevice);
}
}
UsbManager getUSBManager() {
return mUsbManager;
}
private void shutdownUSB() {
try {
mContext.unregisterReceiver(mUsbBroadcast);
} catch (Exception e) {
// We may not have registered, that's okay
}
}
private boolean isHIDDeviceInterface(UsbDevice usbDevice, UsbInterface usbInterface) {
if (usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_HID) {
return true;
}
if (isXbox360Controller(usbDevice, usbInterface) || isXboxOneController(usbDevice, usbInterface)) {
return true;
}
return false;
}
private boolean isXbox360Controller(UsbDevice usbDevice, UsbInterface usbInterface) {
final int XB360_IFACE_SUBCLASS = 93;
final int XB360_IFACE_PROTOCOL = 1; // Wired
final int XB360W_IFACE_PROTOCOL = 129; // Wireless
final int[] SUPPORTED_VENDORS = {
0x0079, // GPD Win 2
0x044f, // Thrustmaster
0x045e, // Microsoft
0x046d, // Logitech
0x056e, // Elecom
0x06a3, // Saitek
0x0738, // Mad Catz
0x07ff, // Mad Catz
0x0e6f, // PDP
0x0f0d, // Hori
0x1038, // SteelSeries
0x11c9, // Nacon
0x12ab, // Unknown
0x1430, // RedOctane
0x146b, // BigBen
0x1532, // Razer Sabertooth
0x15e4, // Numark
0x162e, // Joytech
0x1689, // Razer Onza
0x1949, // Lab126, Inc.
0x1bad, // Harmonix
0x20d6, // PowerA
0x24c6, // PowerA
0x2c22, // Qanba
0x2dc8, // 8BitDo
0x9886, // ASTRO Gaming
};
if (usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_VENDOR_SPEC &&
usbInterface.getInterfaceSubclass() == XB360_IFACE_SUBCLASS &&
(usbInterface.getInterfaceProtocol() == XB360_IFACE_PROTOCOL ||
usbInterface.getInterfaceProtocol() == XB360W_IFACE_PROTOCOL)) {
int vendor_id = usbDevice.getVendorId();
for (int supportedVid : SUPPORTED_VENDORS) {
if (vendor_id == supportedVid) {
return true;
}
}
}
return false;
}
private boolean isXboxOneController(UsbDevice usbDevice, UsbInterface usbInterface) {
final int XB1_IFACE_SUBCLASS = 71;
final int XB1_IFACE_PROTOCOL = 208;
final int[] SUPPORTED_VENDORS = {
0x03f0, // HP
0x044f, // Thrustmaster
0x045e, // Microsoft
0x0738, // Mad Catz
0x0e6f, // PDP
0x0f0d, // Hori
0x10f5, // Turtle Beach
0x1532, // Razer Wildcat
0x20d6, // PowerA
0x24c6, // PowerA
0x2dc8, // 8BitDo
0x2e24, // Hyperkin
};
if (usbInterface.getId() == 0 &&
usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_VENDOR_SPEC &&
usbInterface.getInterfaceSubclass() == XB1_IFACE_SUBCLASS &&
usbInterface.getInterfaceProtocol() == XB1_IFACE_PROTOCOL) {
int vendor_id = usbDevice.getVendorId();
for (int supportedVid : SUPPORTED_VENDORS) {
if (vendor_id == supportedVid) {
return true;
}
}
}
return false;
}
private void handleUsbDeviceAttached(UsbDevice usbDevice) {
connectHIDDeviceUSB(usbDevice);
}
private void handleUsbDeviceDetached(UsbDevice usbDevice) {
List<Integer> devices = new ArrayList<Integer>();
for (HIDDevice device : mDevicesById.values()) {
if (usbDevice.equals(device.getDevice())) {
devices.add(device.getId());
}
}
for (int id : devices) {
HIDDevice device = mDevicesById.get(id);
mDevicesById.remove(id);
device.shutdown();
HIDDeviceDisconnected(id);
}
}
private void handleUsbDevicePermission(UsbDevice usbDevice, boolean permission_granted) {
for (HIDDevice device : mDevicesById.values()) {
if (usbDevice.equals(device.getDevice())) {
boolean opened = false;
if (permission_granted) {
opened = device.open();
}
HIDDeviceOpenResult(device.getId(), opened);
}
}
}
private void connectHIDDeviceUSB(UsbDevice usbDevice) {
synchronized (this) {
int interface_mask = 0;
for (int interface_index = 0; interface_index < usbDevice.getInterfaceCount(); interface_index++) {
UsbInterface usbInterface = usbDevice.getInterface(interface_index);
if (isHIDDeviceInterface(usbDevice, usbInterface)) {
// Check to see if we've already added this interface
// This happens with the Xbox Series X controller which has a duplicate interface 0, which is inactive
int interface_id = usbInterface.getId();
if ((interface_mask & (1 << interface_id)) != 0) {
continue;
}
interface_mask |= (1 << interface_id);
HIDDeviceUSB device = new HIDDeviceUSB(this, usbDevice, interface_index);
int id = device.getId();
mDevicesById.put(id, device);
HIDDeviceConnected(id, device.getIdentifier(), device.getVendorId(), device.getProductId(), device.getSerialNumber(), device.getVersion(), device.getManufacturerName(), device.getProductName(), usbInterface.getId(), usbInterface.getInterfaceClass(), usbInterface.getInterfaceSubclass(), usbInterface.getInterfaceProtocol());
}
}
}
}
private void initializeBluetooth() {
Log.d(TAG, "Initializing Bluetooth");
if (Build.VERSION.SDK_INT <= 30 /* Android 11.0 (R) */ &&
mContext.getPackageManager().checkPermission(android.Manifest.permission.BLUETOOTH, mContext.getPackageName()) != PackageManager.PERMISSION_GRANTED) {
Log.d(TAG, "Couldn't initialize Bluetooth, missing android.permission.BLUETOOTH");
return;
}
if (!mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE) || (Build.VERSION.SDK_INT < 18 /* Android 4.3 (JELLY_BEAN_MR2) */)) {
Log.d(TAG, "Couldn't initialize Bluetooth, this version of Android does not support Bluetooth LE");
return;
}
// Find bonded bluetooth controllers and create SteamControllers for them
mBluetoothManager = (BluetoothManager)mContext.getSystemService(Context.BLUETOOTH_SERVICE);
if (mBluetoothManager == null) {
// This device doesn't support Bluetooth.
return;
}
BluetoothAdapter btAdapter = mBluetoothManager.getAdapter();
if (btAdapter == null) {
// This device has Bluetooth support in the codebase, but has no available adapters.
return;
}
// Get our bonded devices.
for (BluetoothDevice device : btAdapter.getBondedDevices()) {
Log.d(TAG, "Bluetooth device available: " + device);
if (isSteamController(device)) {
connectBluetoothDevice(device);
}
}
// NOTE: These don't work on Chromebooks, to my undying dismay.
IntentFilter filter = new IntentFilter();
filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);
mContext.registerReceiver(mBluetoothBroadcast, filter);
if (mIsChromebook) {
mHandler = new Handler(Looper.getMainLooper());
mLastBluetoothDevices = new ArrayList<BluetoothDevice>();
// final HIDDeviceManager finalThis = this;
// mHandler.postDelayed(new Runnable() {
// @Override
// public void run() {
// finalThis.chromebookConnectionHandler();
// }
// }, 5000);
}
}
private void shutdownBluetooth() {
try {
mContext.unregisterReceiver(mBluetoothBroadcast);
} catch (Exception e) {
// We may not have registered, that's okay
}
}
// Chromebooks do not pass along ACTION_ACL_CONNECTED / ACTION_ACL_DISCONNECTED properly.
// This function provides a sort of dummy version of that, watching for changes in the
// connected devices and attempting to add controllers as things change.
public void chromebookConnectionHandler() {
if (!mIsChromebook) {
return;
}
ArrayList<BluetoothDevice> disconnected = new ArrayList<BluetoothDevice>();
ArrayList<BluetoothDevice> connected = new ArrayList<BluetoothDevice>();
List<BluetoothDevice> currentConnected = mBluetoothManager.getConnectedDevices(BluetoothProfile.GATT);
for (BluetoothDevice bluetoothDevice : currentConnected) {
if (!mLastBluetoothDevices.contains(bluetoothDevice)) {
connected.add(bluetoothDevice);
}
}
for (BluetoothDevice bluetoothDevice : mLastBluetoothDevices) {
if (!currentConnected.contains(bluetoothDevice)) {
disconnected.add(bluetoothDevice);
}
}
mLastBluetoothDevices = currentConnected;
for (BluetoothDevice bluetoothDevice : disconnected) {
disconnectBluetoothDevice(bluetoothDevice);
}
for (BluetoothDevice bluetoothDevice : connected) {
connectBluetoothDevice(bluetoothDevice);
}
final HIDDeviceManager finalThis = this;
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
finalThis.chromebookConnectionHandler();
}
}, 10000);
}
public boolean connectBluetoothDevice(BluetoothDevice bluetoothDevice) {
Log.v(TAG, "connectBluetoothDevice device=" + bluetoothDevice);
synchronized (this) {
if (mBluetoothDevices.containsKey(bluetoothDevice)) {
Log.v(TAG, "Steam controller with address " + bluetoothDevice + " already exists, attempting reconnect");
HIDDeviceBLESteamController device = mBluetoothDevices.get(bluetoothDevice);
device.reconnect();
return false;
}
HIDDeviceBLESteamController device = new HIDDeviceBLESteamController(this, bluetoothDevice);
int id = device.getId();
mBluetoothDevices.put(bluetoothDevice, device);
mDevicesById.put(id, device);
// The Steam Controller will mark itself connected once initialization is complete
}
return true;
}
public void disconnectBluetoothDevice(BluetoothDevice bluetoothDevice) {
synchronized (this) {
HIDDeviceBLESteamController device = mBluetoothDevices.get(bluetoothDevice);
if (device == null)
return;
int id = device.getId();
mBluetoothDevices.remove(bluetoothDevice);
mDevicesById.remove(id);
device.shutdown();
HIDDeviceDisconnected(id);
}
}
public boolean isSteamController(BluetoothDevice bluetoothDevice) {
// Sanity check. If you pass in a null device, by definition it is never a Steam Controller.
if (bluetoothDevice == null) {
return false;
}
// If the device has no local name, we really don't want to try an equality check against it.
if (bluetoothDevice.getName() == null) {
return false;
}
return bluetoothDevice.getName().equals("SteamController") && ((bluetoothDevice.getType() & BluetoothDevice.DEVICE_TYPE_LE) != 0);
}
private void close() {
shutdownUSB();
shutdownBluetooth();
synchronized (this) {
for (HIDDevice device : mDevicesById.values()) {
device.shutdown();
}
mDevicesById.clear();
mBluetoothDevices.clear();
HIDDeviceReleaseCallback();
}
}
public void setFrozen(boolean frozen) {
synchronized (this) {
for (HIDDevice device : mDevicesById.values()) {
device.setFrozen(frozen);
}
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////
private HIDDevice getDevice(int id) {
synchronized (this) {
HIDDevice result = mDevicesById.get(id);
if (result == null) {
Log.v(TAG, "No device for id: " + id);
Log.v(TAG, "Available devices: " + mDevicesById.keySet());
}
return result;
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
////////// JNI interface functions
//////////////////////////////////////////////////////////////////////////////////////////////////////
public boolean initialize(boolean usb, boolean bluetooth) {
Log.v(TAG, "initialize(" + usb + ", " + bluetooth + ")");
if (usb) {
initializeUSB();
}
if (bluetooth) {
initializeBluetooth();
}
return true;
}
public boolean openDevice(int deviceID) {
Log.v(TAG, "openDevice deviceID=" + deviceID);
HIDDevice device = getDevice(deviceID);
if (device == null) {
HIDDeviceDisconnected(deviceID);
return false;
}
// Look to see if this is a USB device and we have permission to access it
UsbDevice usbDevice = device.getDevice();
if (usbDevice != null && !mUsbManager.hasPermission(usbDevice)) {
HIDDeviceOpenPending(deviceID);
try {
final int FLAG_MUTABLE = 0x02000000; // PendingIntent.FLAG_MUTABLE, but don't require SDK 31
int flags;
if (Build.VERSION.SDK_INT >= 31 /* Android 12.0 (S) */) {
flags = FLAG_MUTABLE;
} else {
flags = 0;
}
mUsbManager.requestPermission(usbDevice, PendingIntent.getBroadcast(mContext, 0, new Intent(HIDDeviceManager.ACTION_USB_PERMISSION), flags));
} catch (Exception e) {
Log.v(TAG, "Couldn't request permission for USB device " + usbDevice);
HIDDeviceOpenResult(deviceID, false);
}
return false;
}
try {
return device.open();
} catch (Exception e) {
Log.e(TAG, "Got exception: " + Log.getStackTraceString(e));
}
return false;
}
public int sendOutputReport(int deviceID, byte[] report) {
try {
//Log.v(TAG, "sendOutputReport deviceID=" + deviceID + " length=" + report.length);
HIDDevice device;
device = getDevice(deviceID);
if (device == null) {
HIDDeviceDisconnected(deviceID);
return -1;
}
return device.sendOutputReport(report);
} catch (Exception e) {
Log.e(TAG, "Got exception: " + Log.getStackTraceString(e));
}
return -1;
}
public int sendFeatureReport(int deviceID, byte[] report) {
try {
//Log.v(TAG, "sendFeatureReport deviceID=" + deviceID + " length=" + report.length);
HIDDevice device;
device = getDevice(deviceID);
if (device == null) {
HIDDeviceDisconnected(deviceID);
return -1;
}
return device.sendFeatureReport(report);
} catch (Exception e) {
Log.e(TAG, "Got exception: " + Log.getStackTraceString(e));
}
return -1;
}
public boolean getFeatureReport(int deviceID, byte[] report) {
try {
//Log.v(TAG, "getFeatureReport deviceID=" + deviceID);
HIDDevice device;
device = getDevice(deviceID);
if (device == null) {
HIDDeviceDisconnected(deviceID);
return false;
}
return device.getFeatureReport(report);
} catch (Exception e) {
Log.e(TAG, "Got exception: " + Log.getStackTraceString(e));
}
return false;
}
public void closeDevice(int deviceID) {
try {
Log.v(TAG, "closeDevice deviceID=" + deviceID);
HIDDevice device;
device = getDevice(deviceID);
if (device == null) {
HIDDeviceDisconnected(deviceID);
return;
}
device.close();
} catch (Exception e) {
Log.e(TAG, "Got exception: " + Log.getStackTraceString(e));
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////// Native methods
//////////////////////////////////////////////////////////////////////////////////////////////////////
private native void HIDDeviceRegisterCallback();
private native void HIDDeviceReleaseCallback();
native void HIDDeviceConnected(int deviceID, String identifier, int vendorId, int productId, String serial_number, int release_number, String manufacturer_string, String product_string, int interface_number, int interface_class, int interface_subclass, int interface_protocol);
native void HIDDeviceOpenPending(int deviceID);
native void HIDDeviceOpenResult(int deviceID, boolean opened);
native void HIDDeviceDisconnected(int deviceID);
native void HIDDeviceInputReport(int deviceID, byte[] report);
native void HIDDeviceFeatureReport(int deviceID, byte[] report);
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/HIDDeviceUSB.java | Java | package org.libsdl.app;
import android.hardware.usb.*;
import android.os.Build;
import android.util.Log;
import java.util.Arrays;
class HIDDeviceUSB implements HIDDevice {
private static final String TAG = "hidapi";
protected HIDDeviceManager mManager;
protected UsbDevice mDevice;
protected int mInterfaceIndex;
protected int mInterface;
protected int mDeviceId;
protected UsbDeviceConnection mConnection;
protected UsbEndpoint mInputEndpoint;
protected UsbEndpoint mOutputEndpoint;
protected InputThread mInputThread;
protected boolean mRunning;
protected boolean mFrozen;
public HIDDeviceUSB(HIDDeviceManager manager, UsbDevice usbDevice, int interface_index) {
mManager = manager;
mDevice = usbDevice;
mInterfaceIndex = interface_index;
mInterface = mDevice.getInterface(mInterfaceIndex).getId();
mDeviceId = manager.getDeviceIDForIdentifier(getIdentifier());
mRunning = false;
}
public String getIdentifier() {
return String.format("%s/%x/%x/%d", mDevice.getDeviceName(), mDevice.getVendorId(), mDevice.getProductId(), mInterfaceIndex);
}
@Override
public int getId() {
return mDeviceId;
}
@Override
public int getVendorId() {
return mDevice.getVendorId();
}
@Override
public int getProductId() {
return mDevice.getProductId();
}
@Override
public String getSerialNumber() {
String result = null;
if (Build.VERSION.SDK_INT >= 21 /* Android 5.0 (LOLLIPOP) */) {
try {
result = mDevice.getSerialNumber();
}
catch (SecurityException exception) {
//Log.w(TAG, "App permissions mean we cannot get serial number for device " + getDeviceName() + " message: " + exception.getMessage());
}
}
if (result == null) {
result = "";
}
return result;
}
@Override
public int getVersion() {
return 0;
}
@Override
public String getManufacturerName() {
String result = null;
if (Build.VERSION.SDK_INT >= 21 /* Android 5.0 (LOLLIPOP) */) {
result = mDevice.getManufacturerName();
}
if (result == null) {
result = String.format("%x", getVendorId());
}
return result;
}
@Override
public String getProductName() {
String result = null;
if (Build.VERSION.SDK_INT >= 21 /* Android 5.0 (LOLLIPOP) */) {
result = mDevice.getProductName();
}
if (result == null) {
result = String.format("%x", getProductId());
}
return result;
}
@Override
public UsbDevice getDevice() {
return mDevice;
}
public String getDeviceName() {
return getManufacturerName() + " " + getProductName() + "(0x" + String.format("%x", getVendorId()) + "/0x" + String.format("%x", getProductId()) + ")";
}
@Override
public boolean open() {
mConnection = mManager.getUSBManager().openDevice(mDevice);
if (mConnection == null) {
Log.w(TAG, "Unable to open USB device " + getDeviceName());
return false;
}
// Force claim our interface
UsbInterface iface = mDevice.getInterface(mInterfaceIndex);
if (!mConnection.claimInterface(iface, true)) {
Log.w(TAG, "Failed to claim interfaces on USB device " + getDeviceName());
close();
return false;
}
// Find the endpoints
for (int j = 0; j < iface.getEndpointCount(); j++) {
UsbEndpoint endpt = iface.getEndpoint(j);
switch (endpt.getDirection()) {
case UsbConstants.USB_DIR_IN:
if (mInputEndpoint == null) {
mInputEndpoint = endpt;
}
break;
case UsbConstants.USB_DIR_OUT:
if (mOutputEndpoint == null) {
mOutputEndpoint = endpt;
}
break;
}
}
// Make sure the required endpoints were present
if (mInputEndpoint == null || mOutputEndpoint == null) {
Log.w(TAG, "Missing required endpoint on USB device " + getDeviceName());
close();
return false;
}
// Start listening for input
mRunning = true;
mInputThread = new InputThread();
mInputThread.start();
return true;
}
@Override
public int sendFeatureReport(byte[] report) {
int res = -1;
int offset = 0;
int length = report.length;
boolean skipped_report_id = false;
byte report_number = report[0];
if (report_number == 0x0) {
++offset;
--length;
skipped_report_id = true;
}
res = mConnection.controlTransfer(
UsbConstants.USB_TYPE_CLASS | 0x01 /*RECIPIENT_INTERFACE*/ | UsbConstants.USB_DIR_OUT,
0x09/*HID set_report*/,
(3/*HID feature*/ << 8) | report_number,
mInterface,
report, offset, length,
1000/*timeout millis*/);
if (res < 0) {
Log.w(TAG, "sendFeatureReport() returned " + res + " on device " + getDeviceName());
return -1;
}
if (skipped_report_id) {
++length;
}
return length;
}
@Override
public int sendOutputReport(byte[] report) {
int r = mConnection.bulkTransfer(mOutputEndpoint, report, report.length, 1000);
if (r != report.length) {
Log.w(TAG, "sendOutputReport() returned " + r + " on device " + getDeviceName());
}
return r;
}
@Override
public boolean getFeatureReport(byte[] report) {
int res = -1;
int offset = 0;
int length = report.length;
boolean skipped_report_id = false;
byte report_number = report[0];
if (report_number == 0x0) {
/* Offset the return buffer by 1, so that the report ID
will remain in byte 0. */
++offset;
--length;
skipped_report_id = true;
}
res = mConnection.controlTransfer(
UsbConstants.USB_TYPE_CLASS | 0x01 /*RECIPIENT_INTERFACE*/ | UsbConstants.USB_DIR_IN,
0x01/*HID get_report*/,
(3/*HID feature*/ << 8) | report_number,
mInterface,
report, offset, length,
1000/*timeout millis*/);
if (res < 0) {
Log.w(TAG, "getFeatureReport() returned " + res + " on device " + getDeviceName());
return false;
}
if (skipped_report_id) {
++res;
++length;
}
byte[] data;
if (res == length) {
data = report;
} else {
data = Arrays.copyOfRange(report, 0, res);
}
mManager.HIDDeviceFeatureReport(mDeviceId, data);
return true;
}
@Override
public void close() {
mRunning = false;
if (mInputThread != null) {
while (mInputThread.isAlive()) {
mInputThread.interrupt();
try {
mInputThread.join();
} catch (InterruptedException e) {
// Keep trying until we're done
}
}
mInputThread = null;
}
if (mConnection != null) {
UsbInterface iface = mDevice.getInterface(mInterfaceIndex);
mConnection.releaseInterface(iface);
mConnection.close();
mConnection = null;
}
}
@Override
public void shutdown() {
close();
mManager = null;
}
@Override
public void setFrozen(boolean frozen) {
mFrozen = frozen;
}
protected class InputThread extends Thread {
@Override
public void run() {
int packetSize = mInputEndpoint.getMaxPacketSize();
byte[] packet = new byte[packetSize];
while (mRunning) {
int r;
try
{
r = mConnection.bulkTransfer(mInputEndpoint, packet, packetSize, 1000);
}
catch (Exception e)
{
Log.v(TAG, "Exception in UsbDeviceConnection bulktransfer: " + e);
break;
}
if (r < 0) {
// Could be a timeout or an I/O error
}
if (r > 0) {
byte[] data;
if (r == packetSize) {
data = packet;
} else {
data = Arrays.copyOfRange(packet, 0, r);
}
if (!mFrozen) {
mManager.HIDDeviceInputReport(mDeviceId, data);
}
}
}
}
}
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/PlatformUtils.java | Java | package org.libsdl.app;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.Network;
import android.net.NetworkCapabilities;
import android.net.NetworkInfo;
import android.net.Uri;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.BatteryManager;
import android.os.Message;
import android.provider.Settings;
import android.view.Window;
import android.view.WindowManager;
public class PlatformUtils {
public static boolean isBatterySupported() {
Context context = SDLActivity.getContext();
Intent batteryIntent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
return batteryIntent != null;
}
public static int getBatteryLevel() {
Context context = SDLActivity.getContext();
Intent batteryIntent = context.registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
if (batteryIntent == null) {
return 0;
}
int level = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
int scale = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
if (level >= 0 && scale > 0) {
return (level * 100) / scale;
}
return 0;
}
public static boolean isBatteryCharging() {
Context context = SDLActivity.getContext();
IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
Intent batteryStatus = context.registerReceiver(null, filter);
int status = batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS, -1);
return status == BatteryManager.BATTERY_STATUS_CHARGING ||
status == BatteryManager.BATTERY_STATUS_FULL;
}
public static boolean isEthernetConnected() {
Context context = SDLActivity.getContext();
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
Network[] networks = connectivityManager.getAllNetworks();
for (Network network : networks) {
NetworkCapabilities capabilities = connectivityManager.getNetworkCapabilities(network);
if (capabilities != null && capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET)) {
return true;
}
}
return false;
}
public static boolean isWifiSupported() {
Context context = SDLActivity.getContext();
WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
return wifiManager != null && wifiManager.isWifiEnabled();
}
public static boolean isWifiConnected() {
Context context = SDLActivity.getContext();
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo wifiInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
return wifiInfo != null && wifiInfo.isConnected();
}
public static int getWifiSignalStrength() {
Context context = SDLActivity.getContext();
WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
return wifiInfo.getRssi();
}
public static void openBrowser(String url) {
Context context = SDLActivity.getContext();
Uri webpage = Uri.parse(url);
Intent intent = new Intent(Intent.ACTION_VIEW, webpage);
if (intent.resolveActivity(context.getPackageManager()) != null) {
context.startActivity(intent);
}
}
public static float getSystemScreenBrightness(Context context) {
ContentResolver contentResolver = context.getContentResolver();
return Settings.System.getInt(contentResolver,
Settings.System.SCREEN_BRIGHTNESS, 125) * 1.0f / 255.0f;
}
public static BorealisHandler borealisHandler = null;
public static void setAppScreenBrightness(Activity activity, float value) {
Message message = Message.obtain();
message.obj = activity;
message.arg1 = (int)(value * 255);
message.what = 0;
if(borealisHandler != null) borealisHandler.sendMessage(message);
}
public static float getAppScreenBrightness(Activity activity) {
Window window = activity.getWindow();
WindowManager.LayoutParams lp = window.getAttributes();
if (lp.screenBrightness < 0) return getSystemScreenBrightness(activity);
return lp.screenBrightness;
}
} | xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/SDL.java | Java | package org.libsdl.app;
import android.content.Context;
import java.lang.Class;
import java.lang.reflect.Method;
/**
SDL library initialization
*/
public class SDL {
// This function should be called first and sets up the native code
// so it can call into the Java classes
public static void setupJNI() {
SDLActivity.nativeSetupJNI();
SDLAudioManager.nativeSetupJNI();
SDLControllerManager.nativeSetupJNI();
}
// This function should be called each time the activity is started
public static void initialize() {
setContext(null);
SDLActivity.initialize();
SDLAudioManager.initialize();
SDLControllerManager.initialize();
}
// This function stores the current activity (SDL or not)
public static void setContext(Context context) {
SDLAudioManager.setContext(context);
mContext = context;
}
public static Context getContext() {
return mContext;
}
public static void loadLibrary(String libraryName) throws UnsatisfiedLinkError, SecurityException, NullPointerException {
if (libraryName == null) {
throw new NullPointerException("No library name provided.");
}
try {
// Let's see if we have ReLinker available in the project. This is necessary for
// some projects that have huge numbers of local libraries bundled, and thus may
// trip a bug in Android's native library loader which ReLinker works around. (If
// loadLibrary works properly, ReLinker will simply use the normal Android method
// internally.)
//
// To use ReLinker, just add it as a dependency. For more information, see
// https://github.com/KeepSafe/ReLinker for ReLinker's repository.
//
Class<?> relinkClass = mContext.getClassLoader().loadClass("com.getkeepsafe.relinker.ReLinker");
Class<?> relinkListenerClass = mContext.getClassLoader().loadClass("com.getkeepsafe.relinker.ReLinker$LoadListener");
Class<?> contextClass = mContext.getClassLoader().loadClass("android.content.Context");
Class<?> stringClass = mContext.getClassLoader().loadClass("java.lang.String");
// Get a 'force' instance of the ReLinker, so we can ensure libraries are reinstalled if
// they've changed during updates.
Method forceMethod = relinkClass.getDeclaredMethod("force");
Object relinkInstance = forceMethod.invoke(null);
Class<?> relinkInstanceClass = relinkInstance.getClass();
// Actually load the library!
Method loadMethod = relinkInstanceClass.getDeclaredMethod("loadLibrary", contextClass, stringClass, stringClass, relinkListenerClass);
loadMethod.invoke(relinkInstance, mContext, libraryName, null, null);
}
catch (final Throwable e) {
// Fall back
try {
System.loadLibrary(libraryName);
}
catch (final UnsatisfiedLinkError ule) {
throw ule;
}
catch (final SecurityException se) {
throw se;
}
}
}
protected static Context mContext;
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/SDLActivity.java | Java | package org.libsdl.app;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.UiModeManager;
import android.content.ClipboardManager;
import android.content.ClipData;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.hardware.Sensor;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.Editable;
import android.text.InputType;
import android.text.Selection;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.SparseArray;
import android.view.Display;
import android.view.Gravity;
import android.view.InputDevice;
import android.view.KeyEvent;
import android.view.PointerIcon;
import android.view.Surface;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.view.inputmethod.BaseInputConnection;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import java.util.Hashtable;
import java.util.Locale;
/**
SDL Activity
*/
public class SDLActivity extends Activity implements View.OnSystemUiVisibilityChangeListener {
private static final String TAG = "SDL";
private static final int SDL_MAJOR_VERSION = 2;
private static final int SDL_MINOR_VERSION = 28;
private static final int SDL_MICRO_VERSION = 5;
/*
// Display InputType.SOURCE/CLASS of events and devices
//
// SDLActivity.debugSource(device.getSources(), "device[" + device.getName() + "]");
// SDLActivity.debugSource(event.getSource(), "event");
public static void debugSource(int sources, String prefix) {
int s = sources;
int s_copy = sources;
String cls = "";
String src = "";
int tst = 0;
int FLAG_TAINTED = 0x80000000;
if ((s & InputDevice.SOURCE_CLASS_BUTTON) != 0) cls += " BUTTON";
if ((s & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) cls += " JOYSTICK";
if ((s & InputDevice.SOURCE_CLASS_POINTER) != 0) cls += " POINTER";
if ((s & InputDevice.SOURCE_CLASS_POSITION) != 0) cls += " POSITION";
if ((s & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) cls += " TRACKBALL";
int s2 = s_copy & ~InputDevice.SOURCE_ANY; // keep class bits
s2 &= ~( InputDevice.SOURCE_CLASS_BUTTON
| InputDevice.SOURCE_CLASS_JOYSTICK
| InputDevice.SOURCE_CLASS_POINTER
| InputDevice.SOURCE_CLASS_POSITION
| InputDevice.SOURCE_CLASS_TRACKBALL);
if (s2 != 0) cls += "Some_Unkown";
s2 = s_copy & InputDevice.SOURCE_ANY; // keep source only, no class;
if (Build.VERSION.SDK_INT >= 23) {
tst = InputDevice.SOURCE_BLUETOOTH_STYLUS;
if ((s & tst) == tst) src += " BLUETOOTH_STYLUS";
s2 &= ~tst;
}
tst = InputDevice.SOURCE_DPAD;
if ((s & tst) == tst) src += " DPAD";
s2 &= ~tst;
tst = InputDevice.SOURCE_GAMEPAD;
if ((s & tst) == tst) src += " GAMEPAD";
s2 &= ~tst;
if (Build.VERSION.SDK_INT >= 21) {
tst = InputDevice.SOURCE_HDMI;
if ((s & tst) == tst) src += " HDMI";
s2 &= ~tst;
}
tst = InputDevice.SOURCE_JOYSTICK;
if ((s & tst) == tst) src += " JOYSTICK";
s2 &= ~tst;
tst = InputDevice.SOURCE_KEYBOARD;
if ((s & tst) == tst) src += " KEYBOARD";
s2 &= ~tst;
tst = InputDevice.SOURCE_MOUSE;
if ((s & tst) == tst) src += " MOUSE";
s2 &= ~tst;
if (Build.VERSION.SDK_INT >= 26) {
tst = InputDevice.SOURCE_MOUSE_RELATIVE;
if ((s & tst) == tst) src += " MOUSE_RELATIVE";
s2 &= ~tst;
tst = InputDevice.SOURCE_ROTARY_ENCODER;
if ((s & tst) == tst) src += " ROTARY_ENCODER";
s2 &= ~tst;
}
tst = InputDevice.SOURCE_STYLUS;
if ((s & tst) == tst) src += " STYLUS";
s2 &= ~tst;
tst = InputDevice.SOURCE_TOUCHPAD;
if ((s & tst) == tst) src += " TOUCHPAD";
s2 &= ~tst;
tst = InputDevice.SOURCE_TOUCHSCREEN;
if ((s & tst) == tst) src += " TOUCHSCREEN";
s2 &= ~tst;
if (Build.VERSION.SDK_INT >= 18) {
tst = InputDevice.SOURCE_TOUCH_NAVIGATION;
if ((s & tst) == tst) src += " TOUCH_NAVIGATION";
s2 &= ~tst;
}
tst = InputDevice.SOURCE_TRACKBALL;
if ((s & tst) == tst) src += " TRACKBALL";
s2 &= ~tst;
tst = InputDevice.SOURCE_ANY;
if ((s & tst) == tst) src += " ANY";
s2 &= ~tst;
if (s == FLAG_TAINTED) src += " FLAG_TAINTED";
s2 &= ~FLAG_TAINTED;
if (s2 != 0) src += " Some_Unkown";
Log.v(TAG, prefix + "int=" + s_copy + " CLASS={" + cls + " } source(s):" + src);
}
*/
public static boolean mIsResumedCalled, mHasFocus;
public static final boolean mHasMultiWindow = (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */);
// Cursor types
// private static final int SDL_SYSTEM_CURSOR_NONE = -1;
private static final int SDL_SYSTEM_CURSOR_ARROW = 0;
private static final int SDL_SYSTEM_CURSOR_IBEAM = 1;
private static final int SDL_SYSTEM_CURSOR_WAIT = 2;
private static final int SDL_SYSTEM_CURSOR_CROSSHAIR = 3;
private static final int SDL_SYSTEM_CURSOR_WAITARROW = 4;
private static final int SDL_SYSTEM_CURSOR_SIZENWSE = 5;
private static final int SDL_SYSTEM_CURSOR_SIZENESW = 6;
private static final int SDL_SYSTEM_CURSOR_SIZEWE = 7;
private static final int SDL_SYSTEM_CURSOR_SIZENS = 8;
private static final int SDL_SYSTEM_CURSOR_SIZEALL = 9;
private static final int SDL_SYSTEM_CURSOR_NO = 10;
private static final int SDL_SYSTEM_CURSOR_HAND = 11;
protected static final int SDL_ORIENTATION_UNKNOWN = 0;
protected static final int SDL_ORIENTATION_LANDSCAPE = 1;
protected static final int SDL_ORIENTATION_LANDSCAPE_FLIPPED = 2;
protected static final int SDL_ORIENTATION_PORTRAIT = 3;
protected static final int SDL_ORIENTATION_PORTRAIT_FLIPPED = 4;
protected static int mCurrentOrientation;
protected static Locale mCurrentLocale;
// Handle the state of the native layer
public enum NativeState {
INIT, RESUMED, PAUSED
}
public static NativeState mNextNativeState;
public static NativeState mCurrentNativeState;
/** If shared libraries (e.g. SDL or the native application) could not be loaded. */
public static boolean mBrokenLibraries = true;
// Main components
protected static SDLActivity mSingleton;
protected static SDLSurface mSurface;
protected static DummyEdit mTextEdit;
protected static boolean mScreenKeyboardShown;
protected static ViewGroup mLayout;
protected static SDLClipboardHandler mClipboardHandler;
protected static Hashtable<Integer, PointerIcon> mCursors;
protected static int mLastCursorID;
protected static SDLGenericMotionListener_API12 mMotionListener;
protected static HIDDeviceManager mHIDDeviceManager;
// This is what SDL runs in. It invokes SDL_main(), eventually
protected static Thread mSDLThread;
protected static SDLGenericMotionListener_API12 getMotionListener() {
if (mMotionListener == null) {
if (Build.VERSION.SDK_INT >= 26 /* Android 8.0 (O) */) {
mMotionListener = new SDLGenericMotionListener_API26();
} else if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
mMotionListener = new SDLGenericMotionListener_API24();
} else {
mMotionListener = new SDLGenericMotionListener_API12();
}
}
return mMotionListener;
}
/**
* This method returns the name of the shared object with the application entry point
* It can be overridden by derived classes.
*/
protected String getMainSharedObject() {
String library;
String[] libraries = SDLActivity.mSingleton.getLibraries();
if (libraries.length > 0) {
library = "lib" + libraries[libraries.length - 1] + ".so";
} else {
library = "libmain.so";
}
return getContext().getApplicationInfo().nativeLibraryDir + "/" + library;
}
/**
* This method returns the name of the application entry point
* It can be overridden by derived classes.
*/
protected String getMainFunction() {
return "SDL_main";
}
/**
* This method is called by SDL before loading the native shared libraries.
* It can be overridden to provide names of shared libraries to be loaded.
* The default implementation returns the defaults. It never returns null.
* An array returned by a new implementation must at least contain "SDL2".
* Also keep in mind that the order the libraries are loaded may matter.
* @return names of shared libraries to be loaded (e.g. "SDL2", "main").
*/
protected String[] getLibraries() {
return new String[] {
"SDL2",
// "SDL2_image",
// "SDL2_mixer",
// "SDL2_net",
// "SDL2_ttf",
"main"
};
}
// Load the .so
public void loadLibraries() {
for (String lib : getLibraries()) {
SDL.loadLibrary(lib);
}
}
/**
* This method is called by SDL before starting the native application thread.
* It can be overridden to provide the arguments after the application name.
* The default implementation returns an empty array. It never returns null.
* @return arguments for the native application.
*/
protected String[] getArguments() {
return new String[0];
}
public static void initialize() {
// The static nature of the singleton and Android quirkyness force us to initialize everything here
// Otherwise, when exiting the app and returning to it, these variables *keep* their pre exit values
mSingleton = null;
mSurface = null;
mTextEdit = null;
mLayout = null;
mClipboardHandler = null;
mCursors = new Hashtable<Integer, PointerIcon>();
mLastCursorID = 0;
mSDLThread = null;
mIsResumedCalled = false;
mHasFocus = true;
mNextNativeState = NativeState.INIT;
mCurrentNativeState = NativeState.INIT;
}
protected SDLSurface createSDLSurface(Context context) {
return new SDLSurface(context);
}
// Setup
@Override
protected void onCreate(Bundle savedInstanceState) {
Log.v(TAG, "Device: " + Build.DEVICE);
Log.v(TAG, "Model: " + Build.MODEL);
Log.v(TAG, "onCreate()");
super.onCreate(savedInstanceState);
try {
Thread.currentThread().setName("SDLActivity");
} catch (Exception e) {
Log.v(TAG, "modify thread properties failed " + e.toString());
}
// Load shared libraries
String errorMsgBrokenLib = "";
try {
loadLibraries();
mBrokenLibraries = false; /* success */
} catch(UnsatisfiedLinkError e) {
System.err.println(e.getMessage());
mBrokenLibraries = true;
errorMsgBrokenLib = e.getMessage();
} catch(Exception e) {
System.err.println(e.getMessage());
mBrokenLibraries = true;
errorMsgBrokenLib = e.getMessage();
}
if (!mBrokenLibraries) {
String expected_version = String.valueOf(SDL_MAJOR_VERSION) + "." +
String.valueOf(SDL_MINOR_VERSION) + "." +
String.valueOf(SDL_MICRO_VERSION);
String version = nativeGetVersion();
if (!version.equals(expected_version)) {
mBrokenLibraries = true;
errorMsgBrokenLib = "SDL C/Java version mismatch (expected " + expected_version + ", got " + version + ")";
}
}
if (mBrokenLibraries) {
mSingleton = this;
AlertDialog.Builder dlgAlert = new AlertDialog.Builder(this);
dlgAlert.setMessage("An error occurred while trying to start the application. Please try again and/or reinstall."
+ System.getProperty("line.separator")
+ System.getProperty("line.separator")
+ "Error: " + errorMsgBrokenLib);
dlgAlert.setTitle("SDL Error");
dlgAlert.setPositiveButton("Exit",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,int id) {
// if this button is clicked, close current activity
SDLActivity.mSingleton.finish();
}
});
dlgAlert.setCancelable(false);
dlgAlert.create().show();
return;
}
// Set up JNI
SDL.setupJNI();
// Initialize state
SDL.initialize();
// So we can call stuff from static callbacks
mSingleton = this;
SDL.setContext(this);
mClipboardHandler = new SDLClipboardHandler();
mHIDDeviceManager = HIDDeviceManager.acquire(this);
// Set up the surface
mSurface = createSDLSurface(this);
mLayout = new RelativeLayout(this);
mLayout.addView(mSurface);
// Get our current screen orientation and pass it down.
mCurrentOrientation = SDLActivity.getCurrentOrientation();
// Only record current orientation
SDLActivity.onNativeOrientationChanged(mCurrentOrientation);
try {
if (Build.VERSION.SDK_INT < 24 /* Android 7.0 (N) */) {
mCurrentLocale = getContext().getResources().getConfiguration().locale;
} else {
mCurrentLocale = getContext().getResources().getConfiguration().getLocales().get(0);
}
} catch(Exception ignored) {
}
setContentView(mLayout);
setWindowStyle(false);
getWindow().getDecorView().setOnSystemUiVisibilityChangeListener(this);
// Get filename from "Open with" of another application
Intent intent = getIntent();
if (intent != null && intent.getData() != null) {
String filename = intent.getData().getPath();
if (filename != null) {
Log.v(TAG, "Got filename: " + filename);
SDLActivity.onNativeDropFile(filename);
}
}
}
protected void pauseNativeThread() {
mNextNativeState = NativeState.PAUSED;
mIsResumedCalled = false;
if (SDLActivity.mBrokenLibraries) {
return;
}
SDLActivity.handleNativeState();
}
protected void resumeNativeThread() {
mNextNativeState = NativeState.RESUMED;
mIsResumedCalled = true;
if (SDLActivity.mBrokenLibraries) {
return;
}
SDLActivity.handleNativeState();
}
// Events
@Override
protected void onPause() {
Log.v(TAG, "onPause()");
super.onPause();
if (mHIDDeviceManager != null) {
mHIDDeviceManager.setFrozen(true);
}
if (!mHasMultiWindow) {
pauseNativeThread();
}
}
@Override
protected void onResume() {
Log.v(TAG, "onResume()");
super.onResume();
if (mHIDDeviceManager != null) {
mHIDDeviceManager.setFrozen(false);
}
if (!mHasMultiWindow) {
resumeNativeThread();
}
}
@Override
protected void onStop() {
Log.v(TAG, "onStop()");
super.onStop();
if (mHasMultiWindow) {
pauseNativeThread();
}
}
@Override
protected void onStart() {
Log.v(TAG, "onStart()");
super.onStart();
if (mHasMultiWindow) {
resumeNativeThread();
}
}
public static int getCurrentOrientation() {
int result = SDL_ORIENTATION_UNKNOWN;
Activity activity = (Activity)getContext();
if (activity == null) {
return result;
}
Display display = activity.getWindowManager().getDefaultDisplay();
switch (display.getRotation()) {
case Surface.ROTATION_0:
result = SDL_ORIENTATION_PORTRAIT;
break;
case Surface.ROTATION_90:
result = SDL_ORIENTATION_LANDSCAPE;
break;
case Surface.ROTATION_180:
result = SDL_ORIENTATION_PORTRAIT_FLIPPED;
break;
case Surface.ROTATION_270:
result = SDL_ORIENTATION_LANDSCAPE_FLIPPED;
break;
}
return result;
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
Log.v(TAG, "onWindowFocusChanged(): " + hasFocus);
if (SDLActivity.mBrokenLibraries) {
return;
}
mHasFocus = hasFocus;
if (hasFocus) {
mNextNativeState = NativeState.RESUMED;
SDLActivity.getMotionListener().reclaimRelativeMouseModeIfNeeded();
SDLActivity.handleNativeState();
nativeFocusChanged(true);
} else {
nativeFocusChanged(false);
if (!mHasMultiWindow) {
mNextNativeState = NativeState.PAUSED;
SDLActivity.handleNativeState();
}
}
}
@Override
public void onLowMemory() {
Log.v(TAG, "onLowMemory()");
super.onLowMemory();
if (SDLActivity.mBrokenLibraries) {
return;
}
SDLActivity.nativeLowMemory();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
Log.v(TAG, "onConfigurationChanged()");
super.onConfigurationChanged(newConfig);
if (SDLActivity.mBrokenLibraries) {
return;
}
if (mCurrentLocale == null || !mCurrentLocale.equals(newConfig.locale)) {
mCurrentLocale = newConfig.locale;
SDLActivity.onNativeLocaleChanged();
}
}
@Override
protected void onDestroy() {
Log.v(TAG, "onDestroy()");
if (mHIDDeviceManager != null) {
HIDDeviceManager.release(mHIDDeviceManager);
mHIDDeviceManager = null;
}
SDLAudioManager.release(this);
if (SDLActivity.mBrokenLibraries) {
super.onDestroy();
return;
}
if (SDLActivity.mSDLThread != null) {
// Send Quit event to "SDLThread" thread
SDLActivity.nativeSendQuit();
// Wait for "SDLThread" thread to end
try {
SDLActivity.mSDLThread.join();
} catch(Exception e) {
Log.v(TAG, "Problem stopping SDLThread: " + e);
}
}
SDLActivity.nativeQuit();
super.onDestroy();
}
@Override
public void onBackPressed() {
// Check if we want to block the back button in case of mouse right click.
//
// If we do, the normal hardware back button will no longer work and people have to use home,
// but the mouse right click will work.
//
boolean trapBack = SDLActivity.nativeGetHintBoolean("SDL_ANDROID_TRAP_BACK_BUTTON", false);
if (trapBack) {
// Exit and let the mouse handler handle this button (if appropriate)
return;
}
// Default system back button behavior.
if (!isFinishing()) {
super.onBackPressed();
}
}
// Called by JNI from SDL.
public static void manualBackButton() {
mSingleton.pressBackButton();
}
// Used to get us onto the activity's main thread
public void pressBackButton() {
runOnUiThread(new Runnable() {
@Override
public void run() {
if (!SDLActivity.this.isFinishing()) {
SDLActivity.this.superOnBackPressed();
}
}
});
}
// Used to access the system back behavior.
public void superOnBackPressed() {
super.onBackPressed();
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
if (SDLActivity.mBrokenLibraries) {
return false;
}
int keyCode = event.getKeyCode();
// Ignore certain special keys so they're handled by Android
if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN ||
keyCode == KeyEvent.KEYCODE_VOLUME_UP ||
keyCode == KeyEvent.KEYCODE_CAMERA ||
keyCode == KeyEvent.KEYCODE_ZOOM_IN || /* API 11 */
keyCode == KeyEvent.KEYCODE_ZOOM_OUT /* API 11 */
) {
return false;
}
return super.dispatchKeyEvent(event);
}
/* Transition to next state */
public static void handleNativeState() {
if (mNextNativeState == mCurrentNativeState) {
// Already in same state, discard.
return;
}
// Try a transition to init state
if (mNextNativeState == NativeState.INIT) {
mCurrentNativeState = mNextNativeState;
return;
}
// Try a transition to paused state
if (mNextNativeState == NativeState.PAUSED) {
if (mSDLThread != null) {
nativePause();
}
if (mSurface != null) {
mSurface.handlePause();
}
mCurrentNativeState = mNextNativeState;
return;
}
// Try a transition to resumed state
if (mNextNativeState == NativeState.RESUMED) {
if (mSurface.mIsSurfaceReady && mHasFocus && mIsResumedCalled) {
if (mSDLThread == null) {
// This is the entry point to the C app.
// Start up the C app thread and enable sensor input for the first time
// FIXME: Why aren't we enabling sensor input at start?
mSDLThread = new Thread(new SDLMain(), "SDLThread");
mSurface.enableSensor(Sensor.TYPE_ACCELEROMETER, true);
mSDLThread.start();
// No nativeResume(), don't signal Android_ResumeSem
} else {
nativeResume();
}
mSurface.handleResume();
mCurrentNativeState = mNextNativeState;
}
}
}
// Messages from the SDLMain thread
static final int COMMAND_CHANGE_TITLE = 1;
static final int COMMAND_CHANGE_WINDOW_STYLE = 2;
static final int COMMAND_TEXTEDIT_HIDE = 3;
static final int COMMAND_SET_KEEP_SCREEN_ON = 5;
protected static final int COMMAND_USER = 0x8000;
protected static boolean mFullscreenModeActive;
/**
* This method is called by SDL if SDL did not handle a message itself.
* This happens if a received message contains an unsupported command.
* Method can be overwritten to handle Messages in a different class.
* @param command the command of the message.
* @param param the parameter of the message. May be null.
* @return if the message was handled in overridden method.
*/
protected boolean onUnhandledMessage(int command, Object param) {
return false;
}
/**
* A Handler class for Messages from native SDL applications.
* It uses current Activities as target (e.g. for the title).
* static to prevent implicit references to enclosing object.
*/
protected static class SDLCommandHandler extends Handler {
@Override
public void handleMessage(Message msg) {
Context context = SDL.getContext();
if (context == null) {
Log.e(TAG, "error handling message, getContext() returned null");
return;
}
switch (msg.arg1) {
case COMMAND_CHANGE_TITLE:
if (context instanceof Activity) {
((Activity) context).setTitle((String)msg.obj);
} else {
Log.e(TAG, "error handling message, getContext() returned no Activity");
}
break;
case COMMAND_CHANGE_WINDOW_STYLE:
if (Build.VERSION.SDK_INT >= 19 /* Android 4.4 (KITKAT) */) {
if (context instanceof Activity) {
Window window = ((Activity) context).getWindow();
if (window != null) {
if ((msg.obj instanceof Integer) && ((Integer) msg.obj != 0)) {
int flags = View.SYSTEM_UI_FLAG_FULLSCREEN |
View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |
View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY |
View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.INVISIBLE;
window.getDecorView().setSystemUiVisibility(flags);
window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
window.clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
SDLActivity.mFullscreenModeActive = true;
} else {
int flags = View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_VISIBLE;
window.getDecorView().setSystemUiVisibility(flags);
window.addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
SDLActivity.mFullscreenModeActive = false;
}
}
} else {
Log.e(TAG, "error handling message, getContext() returned no Activity");
}
}
break;
case COMMAND_TEXTEDIT_HIDE:
if (mTextEdit != null) {
// Note: On some devices setting view to GONE creates a flicker in landscape.
// Setting the View's sizes to 0 is similar to GONE but without the flicker.
// The sizes will be set to useful values when the keyboard is shown again.
mTextEdit.setLayoutParams(new RelativeLayout.LayoutParams(0, 0));
InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(mTextEdit.getWindowToken(), 0);
mScreenKeyboardShown = false;
mSurface.requestFocus();
}
break;
case COMMAND_SET_KEEP_SCREEN_ON:
{
if (context instanceof Activity) {
Window window = ((Activity) context).getWindow();
if (window != null) {
if ((msg.obj instanceof Integer) && ((Integer) msg.obj != 0)) {
window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
} else {
window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
}
}
break;
}
default:
if ((context instanceof SDLActivity) && !((SDLActivity) context).onUnhandledMessage(msg.arg1, msg.obj)) {
Log.e(TAG, "error handling message, command is " + msg.arg1);
}
}
}
}
// Handler for the messages
Handler commandHandler = new SDLCommandHandler();
// Send a message from the SDLMain thread
boolean sendCommand(int command, Object data) {
Message msg = commandHandler.obtainMessage();
msg.arg1 = command;
msg.obj = data;
boolean result = commandHandler.sendMessage(msg);
if (Build.VERSION.SDK_INT >= 19 /* Android 4.4 (KITKAT) */) {
if (command == COMMAND_CHANGE_WINDOW_STYLE) {
// Ensure we don't return until the resize has actually happened,
// or 500ms have passed.
boolean bShouldWait = false;
if (data instanceof Integer) {
// Let's figure out if we're already laid out fullscreen or not.
Display display = ((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
DisplayMetrics realMetrics = new DisplayMetrics();
display.getRealMetrics(realMetrics);
boolean bFullscreenLayout = ((realMetrics.widthPixels == mSurface.getWidth()) &&
(realMetrics.heightPixels == mSurface.getHeight()));
if ((Integer) data == 1) {
// If we aren't laid out fullscreen or actively in fullscreen mode already, we're going
// to change size and should wait for surfaceChanged() before we return, so the size
// is right back in native code. If we're already laid out fullscreen, though, we're
// not going to change size even if we change decor modes, so we shouldn't wait for
// surfaceChanged() -- which may not even happen -- and should return immediately.
bShouldWait = !bFullscreenLayout;
} else {
// If we're laid out fullscreen (even if the status bar and nav bar are present),
// or are actively in fullscreen, we're going to change size and should wait for
// surfaceChanged before we return, so the size is right back in native code.
bShouldWait = bFullscreenLayout;
}
}
if (bShouldWait && (SDLActivity.getContext() != null)) {
// We'll wait for the surfaceChanged() method, which will notify us
// when called. That way, we know our current size is really the
// size we need, instead of grabbing a size that's still got
// the navigation and/or status bars before they're hidden.
//
// We'll wait for up to half a second, because some devices
// take a surprisingly long time for the surface resize, but
// then we'll just give up and return.
//
synchronized (SDLActivity.getContext()) {
try {
SDLActivity.getContext().wait(500);
} catch (InterruptedException ie) {
ie.printStackTrace();
}
}
}
}
}
return result;
}
// C functions we call
public static native String nativeGetVersion();
public static native int nativeSetupJNI();
public static native int nativeRunMain(String library, String function, Object arguments);
public static native void nativeLowMemory();
public static native void nativeSendQuit();
public static native void nativeQuit();
public static native void nativePause();
public static native void nativeResume();
public static native void nativeFocusChanged(boolean hasFocus);
public static native void onNativeDropFile(String filename);
public static native void nativeSetScreenResolution(int surfaceWidth, int surfaceHeight, int deviceWidth, int deviceHeight, float rate);
public static native void onNativeResize();
public static native void onNativeKeyDown(int keycode);
public static native void onNativeKeyUp(int keycode);
public static native boolean onNativeSoftReturnKey();
public static native void onNativeKeyboardFocusLost();
public static native void onNativeMouse(int button, int action, float x, float y, boolean relative);
public static native void onNativeTouch(int touchDevId, int pointerFingerId,
int action, float x,
float y, float p);
public static native void onNativeAccel(float x, float y, float z);
public static native void onNativeClipboardChanged();
public static native void onNativeSurfaceCreated();
public static native void onNativeSurfaceChanged();
public static native void onNativeSurfaceDestroyed();
public static native String nativeGetHint(String name);
public static native boolean nativeGetHintBoolean(String name, boolean default_value);
public static native void nativeSetenv(String name, String value);
public static native void onNativeOrientationChanged(int orientation);
public static native void nativeAddTouch(int touchId, String name);
public static native void nativePermissionResult(int requestCode, boolean result);
public static native void onNativeLocaleChanged();
/**
* This method is called by SDL using JNI.
*/
public static boolean setActivityTitle(String title) {
// Called from SDLMain() thread and can't directly affect the view
return mSingleton.sendCommand(COMMAND_CHANGE_TITLE, title);
}
/**
* This method is called by SDL using JNI.
*/
public static void setWindowStyle(boolean fullscreen) {
// Called from SDLMain() thread and can't directly affect the view
mSingleton.sendCommand(COMMAND_CHANGE_WINDOW_STYLE, fullscreen ? 1 : 0);
}
/**
* This method is called by SDL using JNI.
* This is a static method for JNI convenience, it calls a non-static method
* so that is can be overridden
*/
public static void setOrientation(int w, int h, boolean resizable, String hint)
{
if (mSingleton != null) {
mSingleton.setOrientationBis(w, h, resizable, hint);
}
}
/**
* This can be overridden
*/
public void setOrientationBis(int w, int h, boolean resizable, String hint)
{
int orientation_landscape = -1;
int orientation_portrait = -1;
/* If set, hint "explicitly controls which UI orientations are allowed". */
if (hint.contains("LandscapeRight") && hint.contains("LandscapeLeft")) {
orientation_landscape = ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE;
} else if (hint.contains("LandscapeLeft")) {
orientation_landscape = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
} else if (hint.contains("LandscapeRight")) {
orientation_landscape = ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE;
}
/* exact match to 'Portrait' to distinguish with PortraitUpsideDown */
boolean contains_Portrait = hint.contains("Portrait ") || hint.endsWith("Portrait");
if (contains_Portrait && hint.contains("PortraitUpsideDown")) {
orientation_portrait = ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT;
} else if (contains_Portrait) {
orientation_portrait = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
} else if (hint.contains("PortraitUpsideDown")) {
orientation_portrait = ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT;
}
boolean is_landscape_allowed = (orientation_landscape != -1);
boolean is_portrait_allowed = (orientation_portrait != -1);
int req; /* Requested orientation */
/* No valid hint, nothing is explicitly allowed */
if (!is_portrait_allowed && !is_landscape_allowed) {
if (resizable) {
/* All orientations are allowed */
req = ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR;
} else {
/* Fixed window and nothing specified. Get orientation from w/h of created window */
req = (w > h ? ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE : ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT);
}
} else {
/* At least one orientation is allowed */
if (resizable) {
if (is_portrait_allowed && is_landscape_allowed) {
/* hint allows both landscape and portrait, promote to full sensor */
req = ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR;
} else {
/* Use the only one allowed "orientation" */
req = (is_landscape_allowed ? orientation_landscape : orientation_portrait);
}
} else {
/* Fixed window and both orientations are allowed. Choose one. */
if (is_portrait_allowed && is_landscape_allowed) {
req = (w > h ? orientation_landscape : orientation_portrait);
} else {
/* Use the only one allowed "orientation" */
req = (is_landscape_allowed ? orientation_landscape : orientation_portrait);
}
}
}
Log.v(TAG, "setOrientation() requestedOrientation=" + req + " width=" + w +" height="+ h +" resizable=" + resizable + " hint=" + hint);
mSingleton.setRequestedOrientation(req);
}
/**
* This method is called by SDL using JNI.
*/
public static void minimizeWindow() {
if (mSingleton == null) {
return;
}
Intent startMain = new Intent(Intent.ACTION_MAIN);
startMain.addCategory(Intent.CATEGORY_HOME);
startMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mSingleton.startActivity(startMain);
}
/**
* This method is called by SDL using JNI.
*/
public static boolean shouldMinimizeOnFocusLoss() {
/*
if (Build.VERSION.SDK_INT >= 24) {
if (mSingleton == null) {
return true;
}
if (mSingleton.isInMultiWindowMode()) {
return false;
}
if (mSingleton.isInPictureInPictureMode()) {
return false;
}
}
return true;
*/
return false;
}
/**
* This method is called by SDL using JNI.
*/
public static boolean isScreenKeyboardShown()
{
if (mTextEdit == null) {
return false;
}
if (!mScreenKeyboardShown) {
return false;
}
InputMethodManager imm = (InputMethodManager) SDL.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
return imm.isAcceptingText();
}
/**
* This method is called by SDL using JNI.
*/
public static boolean supportsRelativeMouse()
{
// DeX mode in Samsung Experience 9.0 and earlier doesn't support relative mice properly under
// Android 7 APIs, and simply returns no data under Android 8 APIs.
//
// This is fixed in Samsung Experience 9.5, which corresponds to Android 8.1.0, and
// thus SDK version 27. If we are in DeX mode and not API 27 or higher, as a result,
// we should stick to relative mode.
//
if (Build.VERSION.SDK_INT < 27 /* Android 8.1 (O_MR1) */ && isDeXMode()) {
return false;
}
return SDLActivity.getMotionListener().supportsRelativeMouse();
}
/**
* This method is called by SDL using JNI.
*/
public static boolean setRelativeMouseEnabled(boolean enabled)
{
if (enabled && !supportsRelativeMouse()) {
return false;
}
return SDLActivity.getMotionListener().setRelativeMouseEnabled(enabled);
}
/**
* This method is called by SDL using JNI.
*/
public static boolean sendMessage(int command, int param) {
if (mSingleton == null) {
return false;
}
return mSingleton.sendCommand(command, param);
}
/**
* This method is called by SDL using JNI.
*/
public static Context getContext() {
return SDL.getContext();
}
/**
* This method is called by SDL using JNI.
*/
public static boolean isAndroidTV() {
UiModeManager uiModeManager = (UiModeManager) getContext().getSystemService(UI_MODE_SERVICE);
if (uiModeManager.getCurrentModeType() == Configuration.UI_MODE_TYPE_TELEVISION) {
return true;
}
if (Build.MANUFACTURER.equals("MINIX") && Build.MODEL.equals("NEO-U1")) {
return true;
}
if (Build.MANUFACTURER.equals("Amlogic") && Build.MODEL.equals("X96-W")) {
return true;
}
return Build.MANUFACTURER.equals("Amlogic") && Build.MODEL.startsWith("TV");
}
public static double getDiagonal()
{
DisplayMetrics metrics = new DisplayMetrics();
Activity activity = (Activity)getContext();
if (activity == null) {
return 0.0;
}
activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
double dWidthInches = metrics.widthPixels / (double)metrics.xdpi;
double dHeightInches = metrics.heightPixels / (double)metrics.ydpi;
return Math.sqrt((dWidthInches * dWidthInches) + (dHeightInches * dHeightInches));
}
/**
* This method is called by SDL using JNI.
*/
public static boolean isTablet() {
// If our diagonal size is seven inches or greater, we consider ourselves a tablet.
return (getDiagonal() >= 7.0);
}
/**
* This method is called by SDL using JNI.
*/
public static boolean isChromebook() {
if (getContext() == null) {
return false;
}
return getContext().getPackageManager().hasSystemFeature("org.chromium.arc.device_management");
}
/**
* This method is called by SDL using JNI.
*/
public static boolean isDeXMode() {
if (Build.VERSION.SDK_INT < 24 /* Android 7.0 (N) */) {
return false;
}
try {
final Configuration config = getContext().getResources().getConfiguration();
final Class<?> configClass = config.getClass();
return configClass.getField("SEM_DESKTOP_MODE_ENABLED").getInt(configClass)
== configClass.getField("semDesktopModeEnabled").getInt(config);
} catch(Exception ignored) {
return false;
}
}
/**
* This method is called by SDL using JNI.
*/
public static DisplayMetrics getDisplayDPI() {
return getContext().getResources().getDisplayMetrics();
}
/**
* This method is called by SDL using JNI.
*/
public static boolean getManifestEnvironmentVariables() {
try {
if (getContext() == null) {
return false;
}
ApplicationInfo applicationInfo = getContext().getPackageManager().getApplicationInfo(getContext().getPackageName(), PackageManager.GET_META_DATA);
Bundle bundle = applicationInfo.metaData;
if (bundle == null) {
return false;
}
String prefix = "SDL_ENV.";
final int trimLength = prefix.length();
for (String key : bundle.keySet()) {
if (key.startsWith(prefix)) {
String name = key.substring(trimLength);
String value = bundle.get(key).toString();
nativeSetenv(name, value);
}
}
/* environment variables set! */
return true;
} catch (Exception e) {
Log.v(TAG, "exception " + e.toString());
}
return false;
}
// This method is called by SDLControllerManager's API 26 Generic Motion Handler.
public static View getContentView() {
return mLayout;
}
static class ShowTextInputTask implements Runnable {
/*
* This is used to regulate the pan&scan method to have some offset from
* the bottom edge of the input region and the top edge of an input
* method (soft keyboard)
*/
static final int HEIGHT_PADDING = 15;
public int x, y, w, h;
public ShowTextInputTask(int x, int y, int w, int h) {
this.x = x;
this.y = y;
this.w = w;
this.h = h;
/* Minimum size of 1 pixel, so it takes focus. */
if (this.w <= 0) {
this.w = 1;
}
if (this.h + HEIGHT_PADDING <= 0) {
this.h = 1 - HEIGHT_PADDING;
}
}
@Override
public void run() {
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(w, h + HEIGHT_PADDING);
params.leftMargin = x;
params.topMargin = y;
if (mTextEdit == null) {
mTextEdit = new DummyEdit(SDL.getContext());
mLayout.addView(mTextEdit, params);
} else {
mTextEdit.setLayoutParams(params);
}
mTextEdit.setVisibility(View.VISIBLE);
mTextEdit.requestFocus();
InputMethodManager imm = (InputMethodManager) SDL.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(mTextEdit, 0);
mScreenKeyboardShown = true;
}
}
/**
* This method is called by SDL using JNI.
*/
public static boolean showTextInput(int x, int y, int w, int h) {
// Transfer the task to the main thread as a Runnable
return mSingleton.commandHandler.post(new ShowTextInputTask(x, y, w, h));
}
public static boolean isTextInputEvent(KeyEvent event) {
// Key pressed with Ctrl should be sent as SDL_KEYDOWN/SDL_KEYUP and not SDL_TEXTINPUT
if (event.isCtrlPressed()) {
return false;
}
return event.isPrintingKey() || event.getKeyCode() == KeyEvent.KEYCODE_SPACE;
}
public static boolean handleKeyEvent(View v, int keyCode, KeyEvent event, InputConnection ic) {
int deviceId = event.getDeviceId();
int source = event.getSource();
if (source == InputDevice.SOURCE_UNKNOWN) {
InputDevice device = InputDevice.getDevice(deviceId);
if (device != null) {
source = device.getSources();
}
}
// if (event.getAction() == KeyEvent.ACTION_DOWN) {
// Log.v("SDL", "key down: " + keyCode + ", deviceId = " + deviceId + ", source = " + source);
// } else if (event.getAction() == KeyEvent.ACTION_UP) {
// Log.v("SDL", "key up: " + keyCode + ", deviceId = " + deviceId + ", source = " + source);
// }
// Dispatch the different events depending on where they come from
// Some SOURCE_JOYSTICK, SOURCE_DPAD or SOURCE_GAMEPAD are also SOURCE_KEYBOARD
// So, we try to process them as JOYSTICK/DPAD/GAMEPAD events first, if that fails we try them as KEYBOARD
//
// Furthermore, it's possible a game controller has SOURCE_KEYBOARD and
// SOURCE_JOYSTICK, while its key events arrive from the keyboard source
// So, retrieve the device itself and check all of its sources
if (SDLControllerManager.isDeviceSDLJoystick(deviceId)) {
// Note that we process events with specific key codes here
if (event.getAction() == KeyEvent.ACTION_DOWN) {
if (SDLControllerManager.onNativePadDown(deviceId, keyCode) == 0) {
return true;
}
} else if (event.getAction() == KeyEvent.ACTION_UP) {
if (SDLControllerManager.onNativePadUp(deviceId, keyCode) == 0) {
return true;
}
}
}
if ((source & InputDevice.SOURCE_MOUSE) == InputDevice.SOURCE_MOUSE) {
// on some devices key events are sent for mouse BUTTON_BACK/FORWARD presses
// they are ignored here because sending them as mouse input to SDL is messy
if ((keyCode == KeyEvent.KEYCODE_BACK) || (keyCode == KeyEvent.KEYCODE_FORWARD)) {
switch (event.getAction()) {
case KeyEvent.ACTION_DOWN:
case KeyEvent.ACTION_UP:
// mark the event as handled or it will be handled by system
// handling KEYCODE_BACK by system will call onBackPressed()
return true;
}
}
}
if (event.getAction() == KeyEvent.ACTION_DOWN) {
if (isTextInputEvent(event)) {
if (ic != null) {
ic.commitText(String.valueOf((char) event.getUnicodeChar()), 1);
} else {
SDLInputConnection.nativeCommitText(String.valueOf((char) event.getUnicodeChar()), 1);
}
}
onNativeKeyDown(keyCode);
return true;
} else if (event.getAction() == KeyEvent.ACTION_UP) {
onNativeKeyUp(keyCode);
return true;
}
return false;
}
/**
* This method is called by SDL using JNI.
*/
public static Surface getNativeSurface() {
if (SDLActivity.mSurface == null) {
return null;
}
return SDLActivity.mSurface.getNativeSurface();
}
// Input
/**
* This method is called by SDL using JNI.
*/
public static void initTouch() {
int[] ids = InputDevice.getDeviceIds();
for (int id : ids) {
InputDevice device = InputDevice.getDevice(id);
/* Allow SOURCE_TOUCHSCREEN and also Virtual InputDevices because they can send TOUCHSCREEN events */
if (device != null && ((device.getSources() & InputDevice.SOURCE_TOUCHSCREEN) == InputDevice.SOURCE_TOUCHSCREEN
|| device.isVirtual())) {
int touchDevId = device.getId();
/*
* Prevent id to be -1, since it's used in SDL internal for synthetic events
* Appears when using Android emulator, eg:
* adb shell input mouse tap 100 100
* adb shell input touchscreen tap 100 100
*/
if (touchDevId < 0) {
touchDevId -= 1;
}
nativeAddTouch(touchDevId, device.getName());
}
}
}
// Messagebox
/** Result of current messagebox. Also used for blocking the calling thread. */
protected final int[] messageboxSelection = new int[1];
/**
* This method is called by SDL using JNI.
* Shows the messagebox from UI thread and block calling thread.
* buttonFlags, buttonIds and buttonTexts must have same length.
* @param buttonFlags array containing flags for every button.
* @param buttonIds array containing id for every button.
* @param buttonTexts array containing text for every button.
* @param colors null for default or array of length 5 containing colors.
* @return button id or -1.
*/
public int messageboxShowMessageBox(
final int flags,
final String title,
final String message,
final int[] buttonFlags,
final int[] buttonIds,
final String[] buttonTexts,
final int[] colors) {
messageboxSelection[0] = -1;
// sanity checks
if ((buttonFlags.length != buttonIds.length) && (buttonIds.length != buttonTexts.length)) {
return -1; // implementation broken
}
// collect arguments for Dialog
final Bundle args = new Bundle();
args.putInt("flags", flags);
args.putString("title", title);
args.putString("message", message);
args.putIntArray("buttonFlags", buttonFlags);
args.putIntArray("buttonIds", buttonIds);
args.putStringArray("buttonTexts", buttonTexts);
args.putIntArray("colors", colors);
// trigger Dialog creation on UI thread
runOnUiThread(new Runnable() {
@Override
public void run() {
messageboxCreateAndShow(args);
}
});
// block the calling thread
synchronized (messageboxSelection) {
try {
messageboxSelection.wait();
} catch (InterruptedException ex) {
ex.printStackTrace();
return -1;
}
}
// return selected value
return messageboxSelection[0];
}
protected void messageboxCreateAndShow(Bundle args) {
// TODO set values from "flags" to messagebox dialog
// get colors
int[] colors = args.getIntArray("colors");
int backgroundColor;
int textColor;
int buttonBorderColor;
int buttonBackgroundColor;
int buttonSelectedColor;
if (colors != null) {
int i = -1;
backgroundColor = colors[++i];
textColor = colors[++i];
buttonBorderColor = colors[++i];
buttonBackgroundColor = colors[++i];
buttonSelectedColor = colors[++i];
} else {
backgroundColor = Color.TRANSPARENT;
textColor = Color.TRANSPARENT;
buttonBorderColor = Color.TRANSPARENT;
buttonBackgroundColor = Color.TRANSPARENT;
buttonSelectedColor = Color.TRANSPARENT;
}
// create dialog with title and a listener to wake up calling thread
final AlertDialog dialog = new AlertDialog.Builder(this).create();
dialog.setTitle(args.getString("title"));
dialog.setCancelable(false);
dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface unused) {
synchronized (messageboxSelection) {
messageboxSelection.notify();
}
}
});
// create text
TextView message = new TextView(this);
message.setGravity(Gravity.CENTER);
message.setText(args.getString("message"));
if (textColor != Color.TRANSPARENT) {
message.setTextColor(textColor);
}
// create buttons
int[] buttonFlags = args.getIntArray("buttonFlags");
int[] buttonIds = args.getIntArray("buttonIds");
String[] buttonTexts = args.getStringArray("buttonTexts");
final SparseArray<Button> mapping = new SparseArray<Button>();
LinearLayout buttons = new LinearLayout(this);
buttons.setOrientation(LinearLayout.HORIZONTAL);
buttons.setGravity(Gravity.CENTER);
for (int i = 0; i < buttonTexts.length; ++i) {
Button button = new Button(this);
final int id = buttonIds[i];
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
messageboxSelection[0] = id;
dialog.dismiss();
}
});
if (buttonFlags[i] != 0) {
// see SDL_messagebox.h
if ((buttonFlags[i] & 0x00000001) != 0) {
mapping.put(KeyEvent.KEYCODE_ENTER, button);
}
if ((buttonFlags[i] & 0x00000002) != 0) {
mapping.put(KeyEvent.KEYCODE_ESCAPE, button); /* API 11 */
}
}
button.setText(buttonTexts[i]);
if (textColor != Color.TRANSPARENT) {
button.setTextColor(textColor);
}
if (buttonBorderColor != Color.TRANSPARENT) {
// TODO set color for border of messagebox button
}
if (buttonBackgroundColor != Color.TRANSPARENT) {
Drawable drawable = button.getBackground();
if (drawable == null) {
// setting the color this way removes the style
button.setBackgroundColor(buttonBackgroundColor);
} else {
// setting the color this way keeps the style (gradient, padding, etc.)
drawable.setColorFilter(buttonBackgroundColor, PorterDuff.Mode.MULTIPLY);
}
}
if (buttonSelectedColor != Color.TRANSPARENT) {
// TODO set color for selected messagebox button
}
buttons.addView(button);
}
// create content
LinearLayout content = new LinearLayout(this);
content.setOrientation(LinearLayout.VERTICAL);
content.addView(message);
content.addView(buttons);
if (backgroundColor != Color.TRANSPARENT) {
content.setBackgroundColor(backgroundColor);
}
// add content to dialog and return
dialog.setView(content);
dialog.setOnKeyListener(new Dialog.OnKeyListener() {
@Override
public boolean onKey(DialogInterface d, int keyCode, KeyEvent event) {
Button button = mapping.get(keyCode);
if (button != null) {
if (event.getAction() == KeyEvent.ACTION_UP) {
button.performClick();
}
return true; // also for ignored actions
}
return false;
}
});
dialog.show();
}
private final Runnable rehideSystemUi = new Runnable() {
@Override
public void run() {
if (Build.VERSION.SDK_INT >= 19 /* Android 4.4 (KITKAT) */) {
int flags = View.SYSTEM_UI_FLAG_FULLSCREEN |
View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |
View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY |
View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.INVISIBLE;
SDLActivity.this.getWindow().getDecorView().setSystemUiVisibility(flags);
}
}
};
public void onSystemUiVisibilityChange(int visibility) {
if (SDLActivity.mFullscreenModeActive && ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0 || (visibility & View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) == 0)) {
Handler handler = getWindow().getDecorView().getHandler();
if (handler != null) {
handler.removeCallbacks(rehideSystemUi); // Prevent a hide loop.
handler.postDelayed(rehideSystemUi, 2000);
}
}
}
/**
* This method is called by SDL using JNI.
*/
public static boolean clipboardHasText() {
return mClipboardHandler.clipboardHasText();
}
/**
* This method is called by SDL using JNI.
*/
public static String clipboardGetText() {
return mClipboardHandler.clipboardGetText();
}
/**
* This method is called by SDL using JNI.
*/
public static void clipboardSetText(String string) {
mClipboardHandler.clipboardSetText(string);
}
/**
* This method is called by SDL using JNI.
*/
public static int createCustomCursor(int[] colors, int width, int height, int hotSpotX, int hotSpotY) {
Bitmap bitmap = Bitmap.createBitmap(colors, width, height, Bitmap.Config.ARGB_8888);
++mLastCursorID;
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
try {
mCursors.put(mLastCursorID, PointerIcon.create(bitmap, hotSpotX, hotSpotY));
} catch (Exception e) {
return 0;
}
} else {
return 0;
}
return mLastCursorID;
}
/**
* This method is called by SDL using JNI.
*/
public static void destroyCustomCursor(int cursorID) {
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
try {
mCursors.remove(cursorID);
} catch (Exception e) {
}
}
return;
}
/**
* This method is called by SDL using JNI.
*/
public static boolean setCustomCursor(int cursorID) {
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
try {
mSurface.setPointerIcon(mCursors.get(cursorID));
} catch (Exception e) {
return false;
}
} else {
return false;
}
return true;
}
/**
* This method is called by SDL using JNI.
*/
public static boolean setSystemCursor(int cursorID) {
int cursor_type = 0; //PointerIcon.TYPE_NULL;
switch (cursorID) {
case SDL_SYSTEM_CURSOR_ARROW:
cursor_type = 1000; //PointerIcon.TYPE_ARROW;
break;
case SDL_SYSTEM_CURSOR_IBEAM:
cursor_type = 1008; //PointerIcon.TYPE_TEXT;
break;
case SDL_SYSTEM_CURSOR_WAIT:
cursor_type = 1004; //PointerIcon.TYPE_WAIT;
break;
case SDL_SYSTEM_CURSOR_CROSSHAIR:
cursor_type = 1007; //PointerIcon.TYPE_CROSSHAIR;
break;
case SDL_SYSTEM_CURSOR_WAITARROW:
cursor_type = 1004; //PointerIcon.TYPE_WAIT;
break;
case SDL_SYSTEM_CURSOR_SIZENWSE:
cursor_type = 1017; //PointerIcon.TYPE_TOP_LEFT_DIAGONAL_DOUBLE_ARROW;
break;
case SDL_SYSTEM_CURSOR_SIZENESW:
cursor_type = 1016; //PointerIcon.TYPE_TOP_RIGHT_DIAGONAL_DOUBLE_ARROW;
break;
case SDL_SYSTEM_CURSOR_SIZEWE:
cursor_type = 1014; //PointerIcon.TYPE_HORIZONTAL_DOUBLE_ARROW;
break;
case SDL_SYSTEM_CURSOR_SIZENS:
cursor_type = 1015; //PointerIcon.TYPE_VERTICAL_DOUBLE_ARROW;
break;
case SDL_SYSTEM_CURSOR_SIZEALL:
cursor_type = 1020; //PointerIcon.TYPE_GRAB;
break;
case SDL_SYSTEM_CURSOR_NO:
cursor_type = 1012; //PointerIcon.TYPE_NO_DROP;
break;
case SDL_SYSTEM_CURSOR_HAND:
cursor_type = 1002; //PointerIcon.TYPE_HAND;
break;
}
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
try {
mSurface.setPointerIcon(PointerIcon.getSystemIcon(SDL.getContext(), cursor_type));
} catch (Exception e) {
return false;
}
}
return true;
}
/**
* This method is called by SDL using JNI.
*/
public static void requestPermission(String permission, int requestCode) {
if (Build.VERSION.SDK_INT < 23 /* Android 6.0 (M) */) {
nativePermissionResult(requestCode, true);
return;
}
Activity activity = (Activity)getContext();
if (activity.checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
activity.requestPermissions(new String[]{permission}, requestCode);
} else {
nativePermissionResult(requestCode, true);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
boolean result = (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED);
nativePermissionResult(requestCode, result);
}
/**
* This method is called by SDL using JNI.
*/
public static int openURL(String url)
{
try {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
int flags = Intent.FLAG_ACTIVITY_NO_HISTORY | Intent.FLAG_ACTIVITY_MULTIPLE_TASK;
if (Build.VERSION.SDK_INT >= 21 /* Android 5.0 (LOLLIPOP) */) {
flags |= Intent.FLAG_ACTIVITY_NEW_DOCUMENT;
} else {
flags |= Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET;
}
i.addFlags(flags);
mSingleton.startActivity(i);
} catch (Exception ex) {
return -1;
}
return 0;
}
/**
* This method is called by SDL using JNI.
*/
public static int showToast(String message, int duration, int gravity, int xOffset, int yOffset)
{
if(null == mSingleton) {
return - 1;
}
try
{
class OneShotTask implements Runnable {
String mMessage;
int mDuration;
int mGravity;
int mXOffset;
int mYOffset;
OneShotTask(String message, int duration, int gravity, int xOffset, int yOffset) {
mMessage = message;
mDuration = duration;
mGravity = gravity;
mXOffset = xOffset;
mYOffset = yOffset;
}
public void run() {
try
{
Toast toast = Toast.makeText(mSingleton, mMessage, mDuration);
if (mGravity >= 0) {
toast.setGravity(mGravity, mXOffset, mYOffset);
}
toast.show();
} catch(Exception ex) {
Log.e(TAG, ex.getMessage());
}
}
}
mSingleton.runOnUiThread(new OneShotTask(message, duration, gravity, xOffset, yOffset));
} catch(Exception ex) {
return -1;
}
return 0;
}
}
/**
Simple runnable to start the SDL application
*/
class SDLMain implements Runnable {
@Override
public void run() {
// Runs SDL_main()
String library = SDLActivity.mSingleton.getMainSharedObject();
String function = SDLActivity.mSingleton.getMainFunction();
String[] arguments = SDLActivity.mSingleton.getArguments();
try {
android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_DISPLAY);
} catch (Exception e) {
Log.v("SDL", "modify thread properties failed " + e.toString());
}
Log.v("SDL", "Running main function " + function + " from library " + library);
SDLActivity.nativeRunMain(library, function, arguments);
Log.v("SDL", "Finished main function");
if (SDLActivity.mSingleton != null && !SDLActivity.mSingleton.isFinishing()) {
// Let's finish the Activity
SDLActivity.mSDLThread = null;
SDLActivity.mSingleton.finish();
} // else: Activity is already being destroyed
}
}
/* This is a fake invisible editor view that receives the input and defines the
* pan&scan region
*/
class DummyEdit extends View implements View.OnKeyListener {
InputConnection ic;
public DummyEdit(Context context) {
super(context);
setFocusableInTouchMode(true);
setFocusable(true);
setOnKeyListener(this);
}
@Override
public boolean onCheckIsTextEditor() {
return true;
}
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
return SDLActivity.handleKeyEvent(v, keyCode, event, ic);
}
//
@Override
public boolean onKeyPreIme (int keyCode, KeyEvent event) {
// As seen on StackOverflow: http://stackoverflow.com/questions/7634346/keyboard-hide-event
// FIXME: Discussion at http://bugzilla.libsdl.org/show_bug.cgi?id=1639
// FIXME: This is not a 100% effective solution to the problem of detecting if the keyboard is showing or not
// FIXME: A more effective solution would be to assume our Layout to be RelativeLayout or LinearLayout
// FIXME: And determine the keyboard presence doing this: http://stackoverflow.com/questions/2150078/how-to-check-visibility-of-software-keyboard-in-android
// FIXME: An even more effective way would be if Android provided this out of the box, but where would the fun be in that :)
if (event.getAction()==KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
if (SDLActivity.mTextEdit != null && SDLActivity.mTextEdit.getVisibility() == View.VISIBLE) {
SDLActivity.onNativeKeyboardFocusLost();
}
}
return super.onKeyPreIme(keyCode, event);
}
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
ic = new SDLInputConnection(this, true);
outAttrs.inputType = InputType.TYPE_CLASS_TEXT |
InputType.TYPE_TEXT_FLAG_MULTI_LINE;
outAttrs.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI |
EditorInfo.IME_FLAG_NO_FULLSCREEN /* API 11 */;
return ic;
}
}
class SDLInputConnection extends BaseInputConnection {
protected EditText mEditText;
protected String mCommittedText = "";
public SDLInputConnection(View targetView, boolean fullEditor) {
super(targetView, fullEditor);
mEditText = new EditText(SDL.getContext());
}
@Override
public Editable getEditable() {
return mEditText.getEditableText();
}
@Override
public boolean sendKeyEvent(KeyEvent event) {
/*
* This used to handle the keycodes from soft keyboard (and IME-translated input from hardkeyboard)
* However, as of Ice Cream Sandwich and later, almost all soft keyboard doesn't generate key presses
* and so we need to generate them ourselves in commitText. To avoid duplicates on the handful of keys
* that still do, we empty this out.
*/
/*
* Return DOES still generate a key event, however. So rather than using it as the 'click a button' key
* as we do with physical keyboards, let's just use it to hide the keyboard.
*/
if (event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
if (SDLActivity.onNativeSoftReturnKey()) {
return true;
}
}
return super.sendKeyEvent(event);
}
@Override
public boolean commitText(CharSequence text, int newCursorPosition) {
if (!super.commitText(text, newCursorPosition)) {
return false;
}
updateText();
return true;
}
@Override
public boolean setComposingText(CharSequence text, int newCursorPosition) {
if (!super.setComposingText(text, newCursorPosition)) {
return false;
}
updateText();
return true;
}
@Override
public boolean deleteSurroundingText(int beforeLength, int afterLength) {
if (Build.VERSION.SDK_INT <= 29 /* Android 10.0 (Q) */) {
// Workaround to capture backspace key. Ref: http://stackoverflow.com/questions>/14560344/android-backspace-in-webview-baseinputconnection
// and https://bugzilla.libsdl.org/show_bug.cgi?id=2265
if (beforeLength > 0 && afterLength == 0) {
// backspace(s)
while (beforeLength-- > 0) {
nativeGenerateScancodeForUnichar('\b');
}
return true;
}
}
if (!super.deleteSurroundingText(beforeLength, afterLength)) {
return false;
}
updateText();
return true;
}
protected void updateText() {
final Editable content = getEditable();
if (content == null) {
return;
}
String text = content.toString();
int compareLength = Math.min(text.length(), mCommittedText.length());
int matchLength, offset;
/* Backspace over characters that are no longer in the string */
for (matchLength = 0; matchLength < compareLength; ) {
int codePoint = mCommittedText.codePointAt(matchLength);
if (codePoint != text.codePointAt(matchLength)) {
break;
}
matchLength += Character.charCount(codePoint);
}
/* FIXME: This doesn't handle graphemes, like '🌬️' */
for (offset = matchLength; offset < mCommittedText.length(); ) {
int codePoint = mCommittedText.codePointAt(offset);
nativeGenerateScancodeForUnichar('\b');
offset += Character.charCount(codePoint);
}
if (matchLength < text.length()) {
String pendingText = text.subSequence(matchLength, text.length()).toString();
for (offset = 0; offset < pendingText.length(); ) {
int codePoint = pendingText.codePointAt(offset);
if (codePoint == '\n') {
if (SDLActivity.onNativeSoftReturnKey()) {
return;
}
}
/* Higher code points don't generate simulated scancodes */
if (codePoint < 128) {
nativeGenerateScancodeForUnichar((char)codePoint);
}
offset += Character.charCount(codePoint);
}
SDLInputConnection.nativeCommitText(pendingText, 0);
}
mCommittedText = text;
}
public static native void nativeCommitText(String text, int newCursorPosition);
public static native void nativeGenerateScancodeForUnichar(char c);
}
class SDLClipboardHandler implements
ClipboardManager.OnPrimaryClipChangedListener {
protected ClipboardManager mClipMgr;
SDLClipboardHandler() {
mClipMgr = (ClipboardManager) SDL.getContext().getSystemService(Context.CLIPBOARD_SERVICE);
mClipMgr.addPrimaryClipChangedListener(this);
}
public boolean clipboardHasText() {
return mClipMgr.hasPrimaryClip();
}
public String clipboardGetText() {
ClipData clip = mClipMgr.getPrimaryClip();
if (clip != null) {
ClipData.Item item = clip.getItemAt(0);
if (item != null) {
CharSequence text = item.getText();
if (text != null) {
return text.toString();
}
}
}
return null;
}
public void clipboardSetText(String string) {
mClipMgr.removePrimaryClipChangedListener(this);
ClipData clip = ClipData.newPlainText(null, string);
mClipMgr.setPrimaryClip(clip);
mClipMgr.addPrimaryClipChangedListener(this);
}
@Override
public void onPrimaryClipChanged() {
SDLActivity.onNativeClipboardChanged();
}
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/SDLAudioManager.java | Java | package org.libsdl.app;
import android.content.Context;
import android.media.AudioDeviceCallback;
import android.media.AudioDeviceInfo;
import android.media.AudioFormat;
import android.media.AudioManager;
import android.media.AudioRecord;
import android.media.AudioTrack;
import android.media.MediaRecorder;
import android.os.Build;
import android.util.Log;
import java.util.Arrays;
public class SDLAudioManager {
protected static final String TAG = "SDLAudio";
protected static AudioTrack mAudioTrack;
protected static AudioRecord mAudioRecord;
protected static Context mContext;
private static final int[] NO_DEVICES = {};
private static AudioDeviceCallback mAudioDeviceCallback;
public static void initialize() {
mAudioTrack = null;
mAudioRecord = null;
mAudioDeviceCallback = null;
if(Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */)
{
mAudioDeviceCallback = new AudioDeviceCallback() {
@Override
public void onAudioDevicesAdded(AudioDeviceInfo[] addedDevices) {
Arrays.stream(addedDevices).forEach(deviceInfo -> addAudioDevice(deviceInfo.isSink(), deviceInfo.getId()));
}
@Override
public void onAudioDevicesRemoved(AudioDeviceInfo[] removedDevices) {
Arrays.stream(removedDevices).forEach(deviceInfo -> removeAudioDevice(deviceInfo.isSink(), deviceInfo.getId()));
}
};
}
}
public static void setContext(Context context) {
mContext = context;
if (context != null) {
registerAudioDeviceCallback();
}
}
public static void release(Context context) {
unregisterAudioDeviceCallback(context);
}
// Audio
protected static String getAudioFormatString(int audioFormat) {
switch (audioFormat) {
case AudioFormat.ENCODING_PCM_8BIT:
return "8-bit";
case AudioFormat.ENCODING_PCM_16BIT:
return "16-bit";
case AudioFormat.ENCODING_PCM_FLOAT:
return "float";
default:
return Integer.toString(audioFormat);
}
}
protected static int[] open(boolean isCapture, int sampleRate, int audioFormat, int desiredChannels, int desiredFrames, int deviceId) {
int channelConfig;
int sampleSize;
int frameSize;
Log.v(TAG, "Opening " + (isCapture ? "capture" : "playback") + ", requested " + desiredFrames + " frames of " + desiredChannels + " channel " + getAudioFormatString(audioFormat) + " audio at " + sampleRate + " Hz");
/* On older devices let's use known good settings */
if (Build.VERSION.SDK_INT < 21 /* Android 5.0 (LOLLIPOP) */) {
if (desiredChannels > 2) {
desiredChannels = 2;
}
}
/* AudioTrack has sample rate limitation of 48000 (fixed in 5.0.2) */
if (Build.VERSION.SDK_INT < 22 /* Android 5.1 (LOLLIPOP_MR1) */) {
if (sampleRate < 8000) {
sampleRate = 8000;
} else if (sampleRate > 48000) {
sampleRate = 48000;
}
}
if (audioFormat == AudioFormat.ENCODING_PCM_FLOAT) {
int minSDKVersion = (isCapture ? 23 /* Android 6.0 (M) */ : 21 /* Android 5.0 (LOLLIPOP) */);
if (Build.VERSION.SDK_INT < minSDKVersion) {
audioFormat = AudioFormat.ENCODING_PCM_16BIT;
}
}
switch (audioFormat)
{
case AudioFormat.ENCODING_PCM_8BIT:
sampleSize = 1;
break;
case AudioFormat.ENCODING_PCM_16BIT:
sampleSize = 2;
break;
case AudioFormat.ENCODING_PCM_FLOAT:
sampleSize = 4;
break;
default:
Log.v(TAG, "Requested format " + audioFormat + ", getting ENCODING_PCM_16BIT");
audioFormat = AudioFormat.ENCODING_PCM_16BIT;
sampleSize = 2;
break;
}
if (isCapture) {
switch (desiredChannels) {
case 1:
channelConfig = AudioFormat.CHANNEL_IN_MONO;
break;
case 2:
channelConfig = AudioFormat.CHANNEL_IN_STEREO;
break;
default:
Log.v(TAG, "Requested " + desiredChannels + " channels, getting stereo");
desiredChannels = 2;
channelConfig = AudioFormat.CHANNEL_IN_STEREO;
break;
}
} else {
switch (desiredChannels) {
case 1:
channelConfig = AudioFormat.CHANNEL_OUT_MONO;
break;
case 2:
channelConfig = AudioFormat.CHANNEL_OUT_STEREO;
break;
case 3:
channelConfig = AudioFormat.CHANNEL_OUT_STEREO | AudioFormat.CHANNEL_OUT_FRONT_CENTER;
break;
case 4:
channelConfig = AudioFormat.CHANNEL_OUT_QUAD;
break;
case 5:
channelConfig = AudioFormat.CHANNEL_OUT_QUAD | AudioFormat.CHANNEL_OUT_FRONT_CENTER;
break;
case 6:
channelConfig = AudioFormat.CHANNEL_OUT_5POINT1;
break;
case 7:
channelConfig = AudioFormat.CHANNEL_OUT_5POINT1 | AudioFormat.CHANNEL_OUT_BACK_CENTER;
break;
case 8:
if (Build.VERSION.SDK_INT >= 23 /* Android 6.0 (M) */) {
channelConfig = AudioFormat.CHANNEL_OUT_7POINT1_SURROUND;
} else {
Log.v(TAG, "Requested " + desiredChannels + " channels, getting 5.1 surround");
desiredChannels = 6;
channelConfig = AudioFormat.CHANNEL_OUT_5POINT1;
}
break;
default:
Log.v(TAG, "Requested " + desiredChannels + " channels, getting stereo");
desiredChannels = 2;
channelConfig = AudioFormat.CHANNEL_OUT_STEREO;
break;
}
/*
Log.v(TAG, "Speaker configuration (and order of channels):");
if ((channelConfig & 0x00000004) != 0) {
Log.v(TAG, " CHANNEL_OUT_FRONT_LEFT");
}
if ((channelConfig & 0x00000008) != 0) {
Log.v(TAG, " CHANNEL_OUT_FRONT_RIGHT");
}
if ((channelConfig & 0x00000010) != 0) {
Log.v(TAG, " CHANNEL_OUT_FRONT_CENTER");
}
if ((channelConfig & 0x00000020) != 0) {
Log.v(TAG, " CHANNEL_OUT_LOW_FREQUENCY");
}
if ((channelConfig & 0x00000040) != 0) {
Log.v(TAG, " CHANNEL_OUT_BACK_LEFT");
}
if ((channelConfig & 0x00000080) != 0) {
Log.v(TAG, " CHANNEL_OUT_BACK_RIGHT");
}
if ((channelConfig & 0x00000100) != 0) {
Log.v(TAG, " CHANNEL_OUT_FRONT_LEFT_OF_CENTER");
}
if ((channelConfig & 0x00000200) != 0) {
Log.v(TAG, " CHANNEL_OUT_FRONT_RIGHT_OF_CENTER");
}
if ((channelConfig & 0x00000400) != 0) {
Log.v(TAG, " CHANNEL_OUT_BACK_CENTER");
}
if ((channelConfig & 0x00000800) != 0) {
Log.v(TAG, " CHANNEL_OUT_SIDE_LEFT");
}
if ((channelConfig & 0x00001000) != 0) {
Log.v(TAG, " CHANNEL_OUT_SIDE_RIGHT");
}
*/
}
frameSize = (sampleSize * desiredChannels);
// Let the user pick a larger buffer if they really want -- but ye
// gods they probably shouldn't, the minimums are horrifyingly high
// latency already
int minBufferSize;
if (isCapture) {
minBufferSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat);
} else {
minBufferSize = AudioTrack.getMinBufferSize(sampleRate, channelConfig, audioFormat);
}
desiredFrames = Math.max(desiredFrames, (minBufferSize + frameSize - 1) / frameSize);
int[] results = new int[4];
if (isCapture) {
if (mAudioRecord == null) {
mAudioRecord = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, sampleRate,
channelConfig, audioFormat, desiredFrames * frameSize);
// see notes about AudioTrack state in audioOpen(), above. Probably also applies here.
if (mAudioRecord.getState() != AudioRecord.STATE_INITIALIZED) {
Log.e(TAG, "Failed during initialization of AudioRecord");
mAudioRecord.release();
mAudioRecord = null;
return null;
}
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */ && deviceId != 0) {
mAudioRecord.setPreferredDevice(getOutputAudioDeviceInfo(deviceId));
}
mAudioRecord.startRecording();
}
results[0] = mAudioRecord.getSampleRate();
results[1] = mAudioRecord.getAudioFormat();
results[2] = mAudioRecord.getChannelCount();
} else {
if (mAudioTrack == null) {
mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate, channelConfig, audioFormat, desiredFrames * frameSize, AudioTrack.MODE_STREAM);
// Instantiating AudioTrack can "succeed" without an exception and the track may still be invalid
// Ref: https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/media/java/android/media/AudioTrack.java
// Ref: http://developer.android.com/reference/android/media/AudioTrack.html#getState()
if (mAudioTrack.getState() != AudioTrack.STATE_INITIALIZED) {
/* Try again, with safer values */
Log.e(TAG, "Failed during initialization of Audio Track");
mAudioTrack.release();
mAudioTrack = null;
return null;
}
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */ && deviceId != 0) {
mAudioTrack.setPreferredDevice(getInputAudioDeviceInfo(deviceId));
}
mAudioTrack.play();
}
results[0] = mAudioTrack.getSampleRate();
results[1] = mAudioTrack.getAudioFormat();
results[2] = mAudioTrack.getChannelCount();
}
results[3] = desiredFrames;
Log.v(TAG, "Opening " + (isCapture ? "capture" : "playback") + ", got " + results[3] + " frames of " + results[2] + " channel " + getAudioFormatString(results[1]) + " audio at " + results[0] + " Hz");
return results;
}
private static AudioDeviceInfo getInputAudioDeviceInfo(int deviceId) {
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
return Arrays.stream(audioManager.getDevices(AudioManager.GET_DEVICES_INPUTS))
.filter(deviceInfo -> deviceInfo.getId() == deviceId)
.findFirst()
.orElse(null);
} else {
return null;
}
}
private static AudioDeviceInfo getOutputAudioDeviceInfo(int deviceId) {
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
return Arrays.stream(audioManager.getDevices(AudioManager.GET_DEVICES_OUTPUTS))
.filter(deviceInfo -> deviceInfo.getId() == deviceId)
.findFirst()
.orElse(null);
} else {
return null;
}
}
private static void registerAudioDeviceCallback() {
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
audioManager.registerAudioDeviceCallback(mAudioDeviceCallback, null);
}
}
private static void unregisterAudioDeviceCallback(Context context) {
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
audioManager.unregisterAudioDeviceCallback(mAudioDeviceCallback);
}
}
/**
* This method is called by SDL using JNI.
*/
public static int[] getAudioOutputDevices() {
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
return Arrays.stream(audioManager.getDevices(AudioManager.GET_DEVICES_OUTPUTS)).mapToInt(AudioDeviceInfo::getId).toArray();
} else {
return NO_DEVICES;
}
}
/**
* This method is called by SDL using JNI.
*/
public static int[] getAudioInputDevices() {
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
return Arrays.stream(audioManager.getDevices(AudioManager.GET_DEVICES_INPUTS)).mapToInt(AudioDeviceInfo::getId).toArray();
} else {
return NO_DEVICES;
}
}
/**
* This method is called by SDL using JNI.
*/
public static int[] audioOpen(int sampleRate, int audioFormat, int desiredChannels, int desiredFrames, int deviceId) {
return open(false, sampleRate, audioFormat, desiredChannels, desiredFrames, deviceId);
}
/**
* This method is called by SDL using JNI.
*/
public static void audioWriteFloatBuffer(float[] buffer) {
if (mAudioTrack == null) {
Log.e(TAG, "Attempted to make audio call with uninitialized audio!");
return;
}
if (android.os.Build.VERSION.SDK_INT < 21 /* Android 5.0 (LOLLIPOP) */) {
Log.e(TAG, "Attempted to make an incompatible audio call with uninitialized audio! (floating-point output is supported since Android 5.0 Lollipop)");
return;
}
for (int i = 0; i < buffer.length;) {
int result = mAudioTrack.write(buffer, i, buffer.length - i, AudioTrack.WRITE_BLOCKING);
if (result > 0) {
i += result;
} else if (result == 0) {
try {
Thread.sleep(1);
} catch(InterruptedException e) {
// Nom nom
}
} else {
Log.w(TAG, "SDL audio: error return from write(float)");
return;
}
}
}
/**
* This method is called by SDL using JNI.
*/
public static void audioWriteShortBuffer(short[] buffer) {
if (mAudioTrack == null) {
Log.e(TAG, "Attempted to make audio call with uninitialized audio!");
return;
}
for (int i = 0; i < buffer.length;) {
int result = mAudioTrack.write(buffer, i, buffer.length - i);
if (result > 0) {
i += result;
} else if (result == 0) {
try {
Thread.sleep(1);
} catch(InterruptedException e) {
// Nom nom
}
} else {
Log.w(TAG, "SDL audio: error return from write(short)");
return;
}
}
}
/**
* This method is called by SDL using JNI.
*/
public static void audioWriteByteBuffer(byte[] buffer) {
if (mAudioTrack == null) {
Log.e(TAG, "Attempted to make audio call with uninitialized audio!");
return;
}
for (int i = 0; i < buffer.length; ) {
int result = mAudioTrack.write(buffer, i, buffer.length - i);
if (result > 0) {
i += result;
} else if (result == 0) {
try {
Thread.sleep(1);
} catch(InterruptedException e) {
// Nom nom
}
} else {
Log.w(TAG, "SDL audio: error return from write(byte)");
return;
}
}
}
/**
* This method is called by SDL using JNI.
*/
public static int[] captureOpen(int sampleRate, int audioFormat, int desiredChannels, int desiredFrames, int deviceId) {
return open(true, sampleRate, audioFormat, desiredChannels, desiredFrames, deviceId);
}
/** This method is called by SDL using JNI. */
public static int captureReadFloatBuffer(float[] buffer, boolean blocking) {
if (Build.VERSION.SDK_INT < 23 /* Android 6.0 (M) */) {
return 0;
} else {
return mAudioRecord.read(buffer, 0, buffer.length, blocking ? AudioRecord.READ_BLOCKING : AudioRecord.READ_NON_BLOCKING);
}
}
/** This method is called by SDL using JNI. */
public static int captureReadShortBuffer(short[] buffer, boolean blocking) {
if (Build.VERSION.SDK_INT < 23 /* Android 6.0 (M) */) {
return mAudioRecord.read(buffer, 0, buffer.length);
} else {
return mAudioRecord.read(buffer, 0, buffer.length, blocking ? AudioRecord.READ_BLOCKING : AudioRecord.READ_NON_BLOCKING);
}
}
/** This method is called by SDL using JNI. */
public static int captureReadByteBuffer(byte[] buffer, boolean blocking) {
if (Build.VERSION.SDK_INT < 23 /* Android 6.0 (M) */) {
return mAudioRecord.read(buffer, 0, buffer.length);
} else {
return mAudioRecord.read(buffer, 0, buffer.length, blocking ? AudioRecord.READ_BLOCKING : AudioRecord.READ_NON_BLOCKING);
}
}
/** This method is called by SDL using JNI. */
public static void audioClose() {
if (mAudioTrack != null) {
mAudioTrack.stop();
mAudioTrack.release();
mAudioTrack = null;
}
}
/** This method is called by SDL using JNI. */
public static void captureClose() {
if (mAudioRecord != null) {
mAudioRecord.stop();
mAudioRecord.release();
mAudioRecord = null;
}
}
/** This method is called by SDL using JNI. */
public static void audioSetThreadPriority(boolean iscapture, int device_id) {
try {
/* Set thread name */
if (iscapture) {
Thread.currentThread().setName("SDLAudioC" + device_id);
} else {
Thread.currentThread().setName("SDLAudioP" + device_id);
}
/* Set thread priority */
android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_AUDIO);
} catch (Exception e) {
Log.v(TAG, "modify thread properties failed " + e.toString());
}
}
public static native int nativeSetupJNI();
public static native void removeAudioDevice(boolean isCapture, int deviceId);
public static native void addAudioDevice(boolean isCapture, int deviceId);
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/SDLControllerManager.java | Java | package org.libsdl.app;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import android.content.Context;
import android.os.Build;
import android.os.VibrationEffect;
import android.os.Vibrator;
import android.util.Log;
import android.view.InputDevice;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
public class SDLControllerManager
{
public static native int nativeSetupJNI();
public static native int nativeAddJoystick(int device_id, String name, String desc,
int vendor_id, int product_id,
boolean is_accelerometer, int button_mask,
int naxes, int axis_mask, int nhats, int nballs);
public static native int nativeRemoveJoystick(int device_id);
public static native int nativeAddHaptic(int device_id, String name);
public static native int nativeRemoveHaptic(int device_id);
public static native int onNativePadDown(int device_id, int keycode);
public static native int onNativePadUp(int device_id, int keycode);
public static native void onNativeJoy(int device_id, int axis,
float value);
public static native void onNativeHat(int device_id, int hat_id,
int x, int y);
protected static SDLJoystickHandler mJoystickHandler;
protected static SDLHapticHandler mHapticHandler;
private static final String TAG = "SDLControllerManager";
public static void initialize() {
if (mJoystickHandler == null) {
if (Build.VERSION.SDK_INT >= 19 /* Android 4.4 (KITKAT) */) {
mJoystickHandler = new SDLJoystickHandler_API19();
} else {
mJoystickHandler = new SDLJoystickHandler_API16();
}
}
if (mHapticHandler == null) {
if (Build.VERSION.SDK_INT >= 26 /* Android 8.0 (O) */) {
mHapticHandler = new SDLHapticHandler_API26();
} else {
mHapticHandler = new SDLHapticHandler();
}
}
}
// Joystick glue code, just a series of stubs that redirect to the SDLJoystickHandler instance
public static boolean handleJoystickMotionEvent(MotionEvent event) {
return mJoystickHandler.handleMotionEvent(event);
}
/**
* This method is called by SDL using JNI.
*/
public static void pollInputDevices() {
mJoystickHandler.pollInputDevices();
}
/**
* This method is called by SDL using JNI.
*/
public static void pollHapticDevices() {
mHapticHandler.pollHapticDevices();
}
/**
* This method is called by SDL using JNI.
*/
public static void hapticRun(int device_id, float intensity, int length) {
mHapticHandler.run(device_id, intensity, length);
}
/**
* This method is called by SDL using JNI.
*/
public static void hapticStop(int device_id)
{
mHapticHandler.stop(device_id);
}
// Check if a given device is considered a possible SDL joystick
public static boolean isDeviceSDLJoystick(int deviceId) {
InputDevice device = InputDevice.getDevice(deviceId);
// We cannot use InputDevice.isVirtual before API 16, so let's accept
// only nonnegative device ids (VIRTUAL_KEYBOARD equals -1)
if ((device == null) || (deviceId < 0)) {
return false;
}
int sources = device.getSources();
/* This is called for every button press, so let's not spam the logs */
/*
if ((sources & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
Log.v(TAG, "Input device " + device.getName() + " has class joystick.");
}
if ((sources & InputDevice.SOURCE_DPAD) == InputDevice.SOURCE_DPAD) {
Log.v(TAG, "Input device " + device.getName() + " is a dpad.");
}
if ((sources & InputDevice.SOURCE_GAMEPAD) == InputDevice.SOURCE_GAMEPAD) {
Log.v(TAG, "Input device " + device.getName() + " is a gamepad.");
}
*/
return ((sources & InputDevice.SOURCE_CLASS_JOYSTICK) != 0 ||
((sources & InputDevice.SOURCE_DPAD) == InputDevice.SOURCE_DPAD) ||
((sources & InputDevice.SOURCE_GAMEPAD) == InputDevice.SOURCE_GAMEPAD)
);
}
}
class SDLJoystickHandler {
/**
* Handles given MotionEvent.
* @param event the event to be handled.
* @return if given event was processed.
*/
public boolean handleMotionEvent(MotionEvent event) {
return false;
}
/**
* Handles adding and removing of input devices.
*/
public void pollInputDevices() {
}
}
/* Actual joystick functionality available for API >= 12 devices */
class SDLJoystickHandler_API16 extends SDLJoystickHandler {
static class SDLJoystick {
public int device_id;
public String name;
public String desc;
public ArrayList<InputDevice.MotionRange> axes;
public ArrayList<InputDevice.MotionRange> hats;
}
static class RangeComparator implements Comparator<InputDevice.MotionRange> {
@Override
public int compare(InputDevice.MotionRange arg0, InputDevice.MotionRange arg1) {
// Some controllers, like the Moga Pro 2, return AXIS_GAS (22) for right trigger and AXIS_BRAKE (23) for left trigger - swap them so they're sorted in the right order for SDL
int arg0Axis = arg0.getAxis();
int arg1Axis = arg1.getAxis();
if (arg0Axis == MotionEvent.AXIS_GAS) {
arg0Axis = MotionEvent.AXIS_BRAKE;
} else if (arg0Axis == MotionEvent.AXIS_BRAKE) {
arg0Axis = MotionEvent.AXIS_GAS;
}
if (arg1Axis == MotionEvent.AXIS_GAS) {
arg1Axis = MotionEvent.AXIS_BRAKE;
} else if (arg1Axis == MotionEvent.AXIS_BRAKE) {
arg1Axis = MotionEvent.AXIS_GAS;
}
// Make sure the AXIS_Z is sorted between AXIS_RY and AXIS_RZ.
// This is because the usual pairing are:
// - AXIS_X + AXIS_Y (left stick).
// - AXIS_RX, AXIS_RY (sometimes the right stick, sometimes triggers).
// - AXIS_Z, AXIS_RZ (sometimes the right stick, sometimes triggers).
// This sorts the axes in the above order, which tends to be correct
// for Xbox-ish game pads that have the right stick on RX/RY and the
// triggers on Z/RZ.
//
// Gamepads that don't have AXIS_Z/AXIS_RZ but use
// AXIS_LTRIGGER/AXIS_RTRIGGER are unaffected by this.
//
// References:
// - https://developer.android.com/develop/ui/views/touch-and-input/game-controllers/controller-input
// - https://www.kernel.org/doc/html/latest/input/gamepad.html
if (arg0Axis == MotionEvent.AXIS_Z) {
arg0Axis = MotionEvent.AXIS_RZ - 1;
} else if (arg0Axis > MotionEvent.AXIS_Z && arg0Axis < MotionEvent.AXIS_RZ) {
--arg0Axis;
}
if (arg1Axis == MotionEvent.AXIS_Z) {
arg1Axis = MotionEvent.AXIS_RZ - 1;
} else if (arg1Axis > MotionEvent.AXIS_Z && arg1Axis < MotionEvent.AXIS_RZ) {
--arg1Axis;
}
return arg0Axis - arg1Axis;
}
}
private final ArrayList<SDLJoystick> mJoysticks;
public SDLJoystickHandler_API16() {
mJoysticks = new ArrayList<SDLJoystick>();
}
@Override
public void pollInputDevices() {
int[] deviceIds = InputDevice.getDeviceIds();
for (int device_id : deviceIds) {
if (SDLControllerManager.isDeviceSDLJoystick(device_id)) {
SDLJoystick joystick = getJoystick(device_id);
if (joystick == null) {
InputDevice joystickDevice = InputDevice.getDevice(device_id);
joystick = new SDLJoystick();
joystick.device_id = device_id;
joystick.name = joystickDevice.getName();
joystick.desc = getJoystickDescriptor(joystickDevice);
joystick.axes = new ArrayList<InputDevice.MotionRange>();
joystick.hats = new ArrayList<InputDevice.MotionRange>();
List<InputDevice.MotionRange> ranges = joystickDevice.getMotionRanges();
Collections.sort(ranges, new RangeComparator());
for (InputDevice.MotionRange range : ranges) {
if ((range.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
if (range.getAxis() == MotionEvent.AXIS_HAT_X || range.getAxis() == MotionEvent.AXIS_HAT_Y) {
joystick.hats.add(range);
} else {
joystick.axes.add(range);
}
}
}
mJoysticks.add(joystick);
SDLControllerManager.nativeAddJoystick(joystick.device_id, joystick.name, joystick.desc,
getVendorId(joystickDevice), getProductId(joystickDevice), false,
getButtonMask(joystickDevice), joystick.axes.size(), getAxisMask(joystick.axes), joystick.hats.size()/2, 0);
}
}
}
/* Check removed devices */
ArrayList<Integer> removedDevices = null;
for (SDLJoystick joystick : mJoysticks) {
int device_id = joystick.device_id;
int i;
for (i = 0; i < deviceIds.length; i++) {
if (device_id == deviceIds[i]) break;
}
if (i == deviceIds.length) {
if (removedDevices == null) {
removedDevices = new ArrayList<Integer>();
}
removedDevices.add(device_id);
}
}
if (removedDevices != null) {
for (int device_id : removedDevices) {
SDLControllerManager.nativeRemoveJoystick(device_id);
for (int i = 0; i < mJoysticks.size(); i++) {
if (mJoysticks.get(i).device_id == device_id) {
mJoysticks.remove(i);
break;
}
}
}
}
}
protected SDLJoystick getJoystick(int device_id) {
for (SDLJoystick joystick : mJoysticks) {
if (joystick.device_id == device_id) {
return joystick;
}
}
return null;
}
@Override
public boolean handleMotionEvent(MotionEvent event) {
int actionPointerIndex = event.getActionIndex();
int action = event.getActionMasked();
if (action == MotionEvent.ACTION_MOVE) {
SDLJoystick joystick = getJoystick(event.getDeviceId());
if (joystick != null) {
for (int i = 0; i < joystick.axes.size(); i++) {
InputDevice.MotionRange range = joystick.axes.get(i);
/* Normalize the value to -1...1 */
float value = (event.getAxisValue(range.getAxis(), actionPointerIndex) - range.getMin()) / range.getRange() * 2.0f - 1.0f;
SDLControllerManager.onNativeJoy(joystick.device_id, i, value);
}
for (int i = 0; i < joystick.hats.size() / 2; i++) {
int hatX = Math.round(event.getAxisValue(joystick.hats.get(2 * i).getAxis(), actionPointerIndex));
int hatY = Math.round(event.getAxisValue(joystick.hats.get(2 * i + 1).getAxis(), actionPointerIndex));
SDLControllerManager.onNativeHat(joystick.device_id, i, hatX, hatY);
}
}
}
return true;
}
public String getJoystickDescriptor(InputDevice joystickDevice) {
String desc = joystickDevice.getDescriptor();
if (desc != null && !desc.isEmpty()) {
return desc;
}
return joystickDevice.getName();
}
public int getProductId(InputDevice joystickDevice) {
return 0;
}
public int getVendorId(InputDevice joystickDevice) {
return 0;
}
public int getAxisMask(List<InputDevice.MotionRange> ranges) {
return -1;
}
public int getButtonMask(InputDevice joystickDevice) {
return -1;
}
}
class SDLJoystickHandler_API19 extends SDLJoystickHandler_API16 {
@Override
public int getProductId(InputDevice joystickDevice) {
return joystickDevice.getProductId();
}
@Override
public int getVendorId(InputDevice joystickDevice) {
return joystickDevice.getVendorId();
}
@Override
public int getAxisMask(List<InputDevice.MotionRange> ranges) {
// For compatibility, keep computing the axis mask like before,
// only really distinguishing 2, 4 and 6 axes.
int axis_mask = 0;
if (ranges.size() >= 2) {
// ((1 << SDL_GAMEPAD_AXIS_LEFTX) | (1 << SDL_GAMEPAD_AXIS_LEFTY))
axis_mask |= 0x0003;
}
if (ranges.size() >= 4) {
// ((1 << SDL_GAMEPAD_AXIS_RIGHTX) | (1 << SDL_GAMEPAD_AXIS_RIGHTY))
axis_mask |= 0x000c;
}
if (ranges.size() >= 6) {
// ((1 << SDL_GAMEPAD_AXIS_LEFT_TRIGGER) | (1 << SDL_GAMEPAD_AXIS_RIGHT_TRIGGER))
axis_mask |= 0x0030;
}
// Also add an indicator bit for whether the sorting order has changed.
// This serves to disable outdated gamecontrollerdb.txt mappings.
boolean have_z = false;
boolean have_past_z_before_rz = false;
for (InputDevice.MotionRange range : ranges) {
int axis = range.getAxis();
if (axis == MotionEvent.AXIS_Z) {
have_z = true;
} else if (axis > MotionEvent.AXIS_Z && axis < MotionEvent.AXIS_RZ) {
have_past_z_before_rz = true;
}
}
if (have_z && have_past_z_before_rz) {
// If both these exist, the compare() function changed sorting order.
// Set a bit to indicate this fact.
axis_mask |= 0x8000;
}
return axis_mask;
}
@Override
public int getButtonMask(InputDevice joystickDevice) {
int button_mask = 0;
int[] keys = new int[] {
KeyEvent.KEYCODE_BUTTON_A,
KeyEvent.KEYCODE_BUTTON_B,
KeyEvent.KEYCODE_BUTTON_X,
KeyEvent.KEYCODE_BUTTON_Y,
KeyEvent.KEYCODE_BACK,
KeyEvent.KEYCODE_MENU,
KeyEvent.KEYCODE_BUTTON_MODE,
KeyEvent.KEYCODE_BUTTON_START,
KeyEvent.KEYCODE_BUTTON_THUMBL,
KeyEvent.KEYCODE_BUTTON_THUMBR,
KeyEvent.KEYCODE_BUTTON_L1,
KeyEvent.KEYCODE_BUTTON_R1,
KeyEvent.KEYCODE_DPAD_UP,
KeyEvent.KEYCODE_DPAD_DOWN,
KeyEvent.KEYCODE_DPAD_LEFT,
KeyEvent.KEYCODE_DPAD_RIGHT,
KeyEvent.KEYCODE_BUTTON_SELECT,
KeyEvent.KEYCODE_DPAD_CENTER,
// These don't map into any SDL controller buttons directly
KeyEvent.KEYCODE_BUTTON_L2,
KeyEvent.KEYCODE_BUTTON_R2,
KeyEvent.KEYCODE_BUTTON_C,
KeyEvent.KEYCODE_BUTTON_Z,
KeyEvent.KEYCODE_BUTTON_1,
KeyEvent.KEYCODE_BUTTON_2,
KeyEvent.KEYCODE_BUTTON_3,
KeyEvent.KEYCODE_BUTTON_4,
KeyEvent.KEYCODE_BUTTON_5,
KeyEvent.KEYCODE_BUTTON_6,
KeyEvent.KEYCODE_BUTTON_7,
KeyEvent.KEYCODE_BUTTON_8,
KeyEvent.KEYCODE_BUTTON_9,
KeyEvent.KEYCODE_BUTTON_10,
KeyEvent.KEYCODE_BUTTON_11,
KeyEvent.KEYCODE_BUTTON_12,
KeyEvent.KEYCODE_BUTTON_13,
KeyEvent.KEYCODE_BUTTON_14,
KeyEvent.KEYCODE_BUTTON_15,
KeyEvent.KEYCODE_BUTTON_16,
};
int[] masks = new int[] {
(1 << 0), // A -> A
(1 << 1), // B -> B
(1 << 2), // X -> X
(1 << 3), // Y -> Y
(1 << 4), // BACK -> BACK
(1 << 6), // MENU -> START
(1 << 5), // MODE -> GUIDE
(1 << 6), // START -> START
(1 << 7), // THUMBL -> LEFTSTICK
(1 << 8), // THUMBR -> RIGHTSTICK
(1 << 9), // L1 -> LEFTSHOULDER
(1 << 10), // R1 -> RIGHTSHOULDER
(1 << 11), // DPAD_UP -> DPAD_UP
(1 << 12), // DPAD_DOWN -> DPAD_DOWN
(1 << 13), // DPAD_LEFT -> DPAD_LEFT
(1 << 14), // DPAD_RIGHT -> DPAD_RIGHT
(1 << 4), // SELECT -> BACK
(1 << 0), // DPAD_CENTER -> A
(1 << 15), // L2 -> ??
(1 << 16), // R2 -> ??
(1 << 17), // C -> ??
(1 << 18), // Z -> ??
(1 << 20), // 1 -> ??
(1 << 21), // 2 -> ??
(1 << 22), // 3 -> ??
(1 << 23), // 4 -> ??
(1 << 24), // 5 -> ??
(1 << 25), // 6 -> ??
(1 << 26), // 7 -> ??
(1 << 27), // 8 -> ??
(1 << 28), // 9 -> ??
(1 << 29), // 10 -> ??
(1 << 30), // 11 -> ??
(1 << 31), // 12 -> ??
// We're out of room...
0xFFFFFFFF, // 13 -> ??
0xFFFFFFFF, // 14 -> ??
0xFFFFFFFF, // 15 -> ??
0xFFFFFFFF, // 16 -> ??
};
boolean[] has_keys = joystickDevice.hasKeys(keys);
for (int i = 0; i < keys.length; ++i) {
if (has_keys[i]) {
button_mask |= masks[i];
}
}
return button_mask;
}
}
class SDLHapticHandler_API26 extends SDLHapticHandler {
@Override
public void run(int device_id, float intensity, int length) {
SDLHaptic haptic = getHaptic(device_id);
if (haptic != null) {
Log.d("SDL", "Rtest: Vibe with intensity " + intensity + " for " + length);
if (intensity == 0.0f) {
stop(device_id);
return;
}
int vibeValue = Math.round(intensity * 255);
if (vibeValue > 255) {
vibeValue = 255;
}
if (vibeValue < 1) {
stop(device_id);
return;
}
try {
haptic.vib.vibrate(VibrationEffect.createOneShot(length, vibeValue));
}
catch (Exception e) {
// Fall back to the generic method, which uses DEFAULT_AMPLITUDE, but works even if
// something went horribly wrong with the Android 8.0 APIs.
haptic.vib.vibrate(length);
}
}
}
}
class SDLHapticHandler {
static class SDLHaptic {
public int device_id;
public String name;
public Vibrator vib;
}
private final ArrayList<SDLHaptic> mHaptics;
public SDLHapticHandler() {
mHaptics = new ArrayList<SDLHaptic>();
}
public void run(int device_id, float intensity, int length) {
SDLHaptic haptic = getHaptic(device_id);
if (haptic != null) {
haptic.vib.vibrate(length);
}
}
public void stop(int device_id) {
SDLHaptic haptic = getHaptic(device_id);
if (haptic != null) {
haptic.vib.cancel();
}
}
public void pollHapticDevices() {
final int deviceId_VIBRATOR_SERVICE = 999999;
boolean hasVibratorService = false;
int[] deviceIds = InputDevice.getDeviceIds();
// It helps processing the device ids in reverse order
// For example, in the case of the XBox 360 wireless dongle,
// so the first controller seen by SDL matches what the receiver
// considers to be the first controller
for (int i = deviceIds.length - 1; i > -1; i--) {
SDLHaptic haptic = getHaptic(deviceIds[i]);
if (haptic == null) {
InputDevice device = InputDevice.getDevice(deviceIds[i]);
Vibrator vib = device.getVibrator();
if (vib.hasVibrator()) {
haptic = new SDLHaptic();
haptic.device_id = deviceIds[i];
haptic.name = device.getName();
haptic.vib = vib;
mHaptics.add(haptic);
SDLControllerManager.nativeAddHaptic(haptic.device_id, haptic.name);
}
}
}
/* Check VIBRATOR_SERVICE */
Vibrator vib = (Vibrator) SDL.getContext().getSystemService(Context.VIBRATOR_SERVICE);
if (vib != null) {
hasVibratorService = vib.hasVibrator();
if (hasVibratorService) {
SDLHaptic haptic = getHaptic(deviceId_VIBRATOR_SERVICE);
if (haptic == null) {
haptic = new SDLHaptic();
haptic.device_id = deviceId_VIBRATOR_SERVICE;
haptic.name = "VIBRATOR_SERVICE";
haptic.vib = vib;
mHaptics.add(haptic);
SDLControllerManager.nativeAddHaptic(haptic.device_id, haptic.name);
}
}
}
/* Check removed devices */
ArrayList<Integer> removedDevices = null;
for (SDLHaptic haptic : mHaptics) {
int device_id = haptic.device_id;
int i;
for (i = 0; i < deviceIds.length; i++) {
if (device_id == deviceIds[i]) break;
}
if (device_id != deviceId_VIBRATOR_SERVICE || !hasVibratorService) {
if (i == deviceIds.length) {
if (removedDevices == null) {
removedDevices = new ArrayList<Integer>();
}
removedDevices.add(device_id);
}
} // else: don't remove the vibrator if it is still present
}
if (removedDevices != null) {
for (int device_id : removedDevices) {
SDLControllerManager.nativeRemoveHaptic(device_id);
for (int i = 0; i < mHaptics.size(); i++) {
if (mHaptics.get(i).device_id == device_id) {
mHaptics.remove(i);
break;
}
}
}
}
}
protected SDLHaptic getHaptic(int device_id) {
for (SDLHaptic haptic : mHaptics) {
if (haptic.device_id == device_id) {
return haptic;
}
}
return null;
}
}
class SDLGenericMotionListener_API12 implements View.OnGenericMotionListener {
// Generic Motion (mouse hover, joystick...) events go here
@Override
public boolean onGenericMotion(View v, MotionEvent event) {
float x, y;
int action;
switch ( event.getSource() ) {
case InputDevice.SOURCE_JOYSTICK:
return SDLControllerManager.handleJoystickMotionEvent(event);
case InputDevice.SOURCE_MOUSE:
action = event.getActionMasked();
switch (action) {
case MotionEvent.ACTION_SCROLL:
x = event.getAxisValue(MotionEvent.AXIS_HSCROLL, 0);
y = event.getAxisValue(MotionEvent.AXIS_VSCROLL, 0);
SDLActivity.onNativeMouse(0, action, x, y, false);
return true;
case MotionEvent.ACTION_HOVER_MOVE:
x = event.getX(0);
y = event.getY(0);
SDLActivity.onNativeMouse(0, action, x, y, false);
return true;
default:
break;
}
break;
default:
break;
}
// Event was not managed
return false;
}
public boolean supportsRelativeMouse() {
return false;
}
public boolean inRelativeMode() {
return false;
}
public boolean setRelativeMouseEnabled(boolean enabled) {
return false;
}
public void reclaimRelativeMouseModeIfNeeded()
{
}
public float getEventX(MotionEvent event) {
return event.getX(0);
}
public float getEventY(MotionEvent event) {
return event.getY(0);
}
}
class SDLGenericMotionListener_API24 extends SDLGenericMotionListener_API12 {
// Generic Motion (mouse hover, joystick...) events go here
private boolean mRelativeModeEnabled;
@Override
public boolean onGenericMotion(View v, MotionEvent event) {
// Handle relative mouse mode
if (mRelativeModeEnabled) {
if (event.getSource() == InputDevice.SOURCE_MOUSE) {
int action = event.getActionMasked();
if (action == MotionEvent.ACTION_HOVER_MOVE) {
float x = event.getAxisValue(MotionEvent.AXIS_RELATIVE_X);
float y = event.getAxisValue(MotionEvent.AXIS_RELATIVE_Y);
SDLActivity.onNativeMouse(0, action, x, y, true);
return true;
}
}
}
// Event was not managed, call SDLGenericMotionListener_API12 method
return super.onGenericMotion(v, event);
}
@Override
public boolean supportsRelativeMouse() {
return true;
}
@Override
public boolean inRelativeMode() {
return mRelativeModeEnabled;
}
@Override
public boolean setRelativeMouseEnabled(boolean enabled) {
mRelativeModeEnabled = enabled;
return true;
}
@Override
public float getEventX(MotionEvent event) {
if (mRelativeModeEnabled) {
return event.getAxisValue(MotionEvent.AXIS_RELATIVE_X);
} else {
return event.getX(0);
}
}
@Override
public float getEventY(MotionEvent event) {
if (mRelativeModeEnabled) {
return event.getAxisValue(MotionEvent.AXIS_RELATIVE_Y);
} else {
return event.getY(0);
}
}
}
class SDLGenericMotionListener_API26 extends SDLGenericMotionListener_API24 {
// Generic Motion (mouse hover, joystick...) events go here
private boolean mRelativeModeEnabled;
@Override
public boolean onGenericMotion(View v, MotionEvent event) {
float x, y;
int action;
switch ( event.getSource() ) {
case InputDevice.SOURCE_JOYSTICK:
return SDLControllerManager.handleJoystickMotionEvent(event);
case InputDevice.SOURCE_MOUSE:
// DeX desktop mouse cursor is a separate non-standard input type.
case InputDevice.SOURCE_MOUSE | InputDevice.SOURCE_TOUCHSCREEN:
action = event.getActionMasked();
switch (action) {
case MotionEvent.ACTION_SCROLL:
x = event.getAxisValue(MotionEvent.AXIS_HSCROLL, 0);
y = event.getAxisValue(MotionEvent.AXIS_VSCROLL, 0);
SDLActivity.onNativeMouse(0, action, x, y, false);
return true;
case MotionEvent.ACTION_HOVER_MOVE:
x = event.getX(0);
y = event.getY(0);
SDLActivity.onNativeMouse(0, action, x, y, false);
return true;
default:
break;
}
break;
case InputDevice.SOURCE_MOUSE_RELATIVE:
action = event.getActionMasked();
switch (action) {
case MotionEvent.ACTION_SCROLL:
x = event.getAxisValue(MotionEvent.AXIS_HSCROLL, 0);
y = event.getAxisValue(MotionEvent.AXIS_VSCROLL, 0);
SDLActivity.onNativeMouse(0, action, x, y, false);
return true;
case MotionEvent.ACTION_HOVER_MOVE:
x = event.getX(0);
y = event.getY(0);
SDLActivity.onNativeMouse(0, action, x, y, true);
return true;
default:
break;
}
break;
default:
break;
}
// Event was not managed
return false;
}
@Override
public boolean supportsRelativeMouse() {
return (!SDLActivity.isDeXMode() || Build.VERSION.SDK_INT >= 27 /* Android 8.1 (O_MR1) */);
}
@Override
public boolean inRelativeMode() {
return mRelativeModeEnabled;
}
@Override
public boolean setRelativeMouseEnabled(boolean enabled) {
if (!SDLActivity.isDeXMode() || Build.VERSION.SDK_INT >= 27 /* Android 8.1 (O_MR1) */) {
if (enabled) {
SDLActivity.getContentView().requestPointerCapture();
} else {
SDLActivity.getContentView().releasePointerCapture();
}
mRelativeModeEnabled = enabled;
return true;
} else {
return false;
}
}
@Override
public void reclaimRelativeMouseModeIfNeeded()
{
if (mRelativeModeEnabled && !SDLActivity.isDeXMode()) {
SDLActivity.getContentView().requestPointerCapture();
}
}
@Override
public float getEventX(MotionEvent event) {
// Relative mouse in capture mode will only have relative for X/Y
return event.getX(0);
}
@Override
public float getEventY(MotionEvent event) {
// Relative mouse in capture mode will only have relative for X/Y
return event.getY(0);
}
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/app/src/main/java/org/libsdl/app/SDLSurface.java | Java | package org.libsdl.app;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Build;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Display;
import android.view.InputDevice;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.WindowManager;
/**
SDLSurface. This is what we draw on, so we need to know when it's created
in order to do anything useful.
Because of this, that's where we set up the SDL thread
*/
public class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
View.OnKeyListener, View.OnTouchListener, SensorEventListener {
// Sensors
protected SensorManager mSensorManager;
protected Display mDisplay;
// Keep track of the surface size to normalize touch events
protected float mWidth, mHeight;
// Is SurfaceView ready for rendering
public boolean mIsSurfaceReady;
// Startup
public SDLSurface(Context context) {
super(context);
getHolder().addCallback(this);
setFocusable(true);
setFocusableInTouchMode(true);
requestFocus();
setOnKeyListener(this);
setOnTouchListener(this);
mDisplay = ((WindowManager)context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
mSensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
setOnGenericMotionListener(SDLActivity.getMotionListener());
// Some arbitrary defaults to avoid a potential division by zero
mWidth = 1.0f;
mHeight = 1.0f;
mIsSurfaceReady = false;
}
public void handlePause() {
enableSensor(Sensor.TYPE_ACCELEROMETER, false);
}
public void handleResume() {
setFocusable(true);
setFocusableInTouchMode(true);
requestFocus();
setOnKeyListener(this);
setOnTouchListener(this);
enableSensor(Sensor.TYPE_ACCELEROMETER, true);
}
public Surface getNativeSurface() {
return getHolder().getSurface();
}
// Called when we have a valid drawing surface
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.v("SDL", "surfaceCreated()");
SDLActivity.onNativeSurfaceCreated();
}
// Called when we lose the surface
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.v("SDL", "surfaceDestroyed()");
// Transition to pause, if needed
SDLActivity.mNextNativeState = SDLActivity.NativeState.PAUSED;
SDLActivity.handleNativeState();
mIsSurfaceReady = false;
SDLActivity.onNativeSurfaceDestroyed();
}
// Called when the surface is resized
@Override
public void surfaceChanged(SurfaceHolder holder,
int format, int width, int height) {
Log.v("SDL", "surfaceChanged()");
if (SDLActivity.mSingleton == null) {
return;
}
mWidth = width;
mHeight = height;
int nDeviceWidth = width;
int nDeviceHeight = height;
try
{
if (Build.VERSION.SDK_INT >= 17 /* Android 4.2 (JELLY_BEAN_MR1) */) {
DisplayMetrics realMetrics = new DisplayMetrics();
mDisplay.getRealMetrics( realMetrics );
nDeviceWidth = realMetrics.widthPixels;
nDeviceHeight = realMetrics.heightPixels;
}
} catch(Exception ignored) {
}
synchronized(SDLActivity.getContext()) {
// In case we're waiting on a size change after going fullscreen, send a notification.
SDLActivity.getContext().notifyAll();
}
Log.v("SDL", "Window size: " + width + "x" + height);
Log.v("SDL", "Device size: " + nDeviceWidth + "x" + nDeviceHeight);
SDLActivity.nativeSetScreenResolution(width, height, nDeviceWidth, nDeviceHeight, mDisplay.getRefreshRate());
SDLActivity.onNativeResize();
// Prevent a screen distortion glitch,
// for instance when the device is in Landscape and a Portrait App is resumed.
boolean skip = false;
int requestedOrientation = SDLActivity.mSingleton.getRequestedOrientation();
if (requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_PORTRAIT || requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT) {
if (mWidth > mHeight) {
skip = true;
}
} else if (requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE || requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE) {
if (mWidth < mHeight) {
skip = true;
}
}
// Special Patch for Square Resolution: Black Berry Passport
if (skip) {
double min = Math.min(mWidth, mHeight);
double max = Math.max(mWidth, mHeight);
if (max / min < 1.20) {
Log.v("SDL", "Don't skip on such aspect-ratio. Could be a square resolution.");
skip = false;
}
}
// Don't skip in MultiWindow.
if (skip) {
if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
if (SDLActivity.mSingleton.isInMultiWindowMode()) {
Log.v("SDL", "Don't skip in Multi-Window");
skip = false;
}
}
}
if (skip) {
Log.v("SDL", "Skip .. Surface is not ready.");
mIsSurfaceReady = false;
return;
}
/* If the surface has been previously destroyed by onNativeSurfaceDestroyed, recreate it here */
SDLActivity.onNativeSurfaceChanged();
/* Surface is ready */
mIsSurfaceReady = true;
SDLActivity.mNextNativeState = SDLActivity.NativeState.RESUMED;
SDLActivity.handleNativeState();
}
// Key events
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
return SDLActivity.handleKeyEvent(v, keyCode, event, null);
}
// Touch events
@Override
public boolean onTouch(View v, MotionEvent event) {
/* Ref: http://developer.android.com/training/gestures/multi.html */
int touchDevId = event.getDeviceId();
final int pointerCount = event.getPointerCount();
int action = event.getActionMasked();
int pointerFingerId;
int i = -1;
float x,y,p;
/*
* Prevent id to be -1, since it's used in SDL internal for synthetic events
* Appears when using Android emulator, eg:
* adb shell input mouse tap 100 100
* adb shell input touchscreen tap 100 100
*/
if (touchDevId < 0) {
touchDevId -= 1;
}
// 12290 = Samsung DeX mode desktop mouse
// 12290 = 0x3002 = 0x2002 | 0x1002 = SOURCE_MOUSE | SOURCE_TOUCHSCREEN
// 0x2 = SOURCE_CLASS_POINTER
if (event.getSource() == InputDevice.SOURCE_MOUSE || event.getSource() == (InputDevice.SOURCE_MOUSE | InputDevice.SOURCE_TOUCHSCREEN)) {
int mouseButton = 1;
try {
Object object = event.getClass().getMethod("getButtonState").invoke(event);
if (object != null) {
mouseButton = (Integer) object;
}
} catch(Exception ignored) {
}
// We need to check if we're in relative mouse mode and get the axis offset rather than the x/y values
// if we are. We'll leverage our existing mouse motion listener
SDLGenericMotionListener_API12 motionListener = SDLActivity.getMotionListener();
x = motionListener.getEventX(event);
y = motionListener.getEventY(event);
SDLActivity.onNativeMouse(mouseButton, action, x, y, motionListener.inRelativeMode());
} else {
switch(action) {
case MotionEvent.ACTION_MOVE:
for (i = 0; i < pointerCount; i++) {
pointerFingerId = event.getPointerId(i);
x = event.getX(i) / mWidth;
y = event.getY(i) / mHeight;
p = event.getPressure(i);
if (p > 1.0f) {
// may be larger than 1.0f on some devices
// see the documentation of getPressure(i)
p = 1.0f;
}
SDLActivity.onNativeTouch(touchDevId, pointerFingerId, action, x, y, p);
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_DOWN:
// Primary pointer up/down, the index is always zero
i = 0;
/* fallthrough */
case MotionEvent.ACTION_POINTER_UP:
case MotionEvent.ACTION_POINTER_DOWN:
// Non primary pointer up/down
if (i == -1) {
i = event.getActionIndex();
}
pointerFingerId = event.getPointerId(i);
x = event.getX(i) / mWidth;
y = event.getY(i) / mHeight;
p = event.getPressure(i);
if (p > 1.0f) {
// may be larger than 1.0f on some devices
// see the documentation of getPressure(i)
p = 1.0f;
}
SDLActivity.onNativeTouch(touchDevId, pointerFingerId, action, x, y, p);
break;
case MotionEvent.ACTION_CANCEL:
for (i = 0; i < pointerCount; i++) {
pointerFingerId = event.getPointerId(i);
x = event.getX(i) / mWidth;
y = event.getY(i) / mHeight;
p = event.getPressure(i);
if (p > 1.0f) {
// may be larger than 1.0f on some devices
// see the documentation of getPressure(i)
p = 1.0f;
}
SDLActivity.onNativeTouch(touchDevId, pointerFingerId, MotionEvent.ACTION_UP, x, y, p);
}
break;
default:
break;
}
}
return true;
}
// Sensor events
public void enableSensor(int sensortype, boolean enabled) {
// TODO: This uses getDefaultSensor - what if we have >1 accels?
if (enabled) {
mSensorManager.registerListener(this,
mSensorManager.getDefaultSensor(sensortype),
SensorManager.SENSOR_DELAY_GAME, null);
} else {
mSensorManager.unregisterListener(this,
mSensorManager.getDefaultSensor(sensortype));
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// TODO
}
@Override
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
// Since we may have an orientation set, we won't receive onConfigurationChanged events.
// We thus should check here.
int newOrientation;
float x, y;
switch (mDisplay.getRotation()) {
case Surface.ROTATION_90:
x = -event.values[1];
y = event.values[0];
newOrientation = SDLActivity.SDL_ORIENTATION_LANDSCAPE;
break;
case Surface.ROTATION_270:
x = event.values[1];
y = -event.values[0];
newOrientation = SDLActivity.SDL_ORIENTATION_LANDSCAPE_FLIPPED;
break;
case Surface.ROTATION_180:
x = -event.values[0];
y = -event.values[1];
newOrientation = SDLActivity.SDL_ORIENTATION_PORTRAIT_FLIPPED;
break;
case Surface.ROTATION_0:
default:
x = event.values[0];
y = event.values[1];
newOrientation = SDLActivity.SDL_ORIENTATION_PORTRAIT;
break;
}
if (newOrientation != SDLActivity.mCurrentOrientation) {
SDLActivity.mCurrentOrientation = newOrientation;
SDLActivity.onNativeOrientationChanged(newOrientation);
}
SDLActivity.onNativeAccel(-x / SensorManager.GRAVITY_EARTH,
y / SensorManager.GRAVITY_EARTH,
event.values[2] / SensorManager.GRAVITY_EARTH);
}
}
// Captured pointer events for API 26.
public boolean onCapturedPointerEvent(MotionEvent event)
{
int action = event.getActionMasked();
float x, y;
switch (action) {
case MotionEvent.ACTION_SCROLL:
x = event.getAxisValue(MotionEvent.AXIS_HSCROLL, 0);
y = event.getAxisValue(MotionEvent.AXIS_VSCROLL, 0);
SDLActivity.onNativeMouse(0, action, x, y, false);
return true;
case MotionEvent.ACTION_HOVER_MOVE:
case MotionEvent.ACTION_MOVE:
x = event.getX(0);
y = event.getY(0);
SDLActivity.onNativeMouse(0, action, x, y, true);
return true;
case MotionEvent.ACTION_BUTTON_PRESS:
case MotionEvent.ACTION_BUTTON_RELEASE:
// Change our action value to what SDL's code expects.
if (action == MotionEvent.ACTION_BUTTON_PRESS) {
action = MotionEvent.ACTION_DOWN;
} else { /* MotionEvent.ACTION_BUTTON_RELEASE */
action = MotionEvent.ACTION_UP;
}
x = event.getX(0);
y = event.getY(0);
int button = event.getButtonState();
SDLActivity.onNativeMouse(button, action, x, y, true);
return true;
}
return false;
}
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/build.gradle | Gradle | // Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
mavenCentral()
google()
}
dependencies {
classpath 'com.android.tools.build:gradle:7.0.3'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
mavenCentral()
google()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
android-project/settings.gradle | Gradle | include ':app'
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
build_libromfs_generator.sh | Shell | set -e
# ======== 手动构建 libromfs-generator ========
# 本项目支持使用 libromfs 将主程序和资源文件打包在一起，避免额外的文件依赖
# libromfs-generator 的作用是将资源文件转换为 cpp 源码，并在后续的编译过程中链接进主程序
# 在跨平台编译时，有两种解决方案：
# 1. 提前编译host机器格式的 libromfs-generator
# 2. 设置 CMAKE_CROSSCOMPILING_EMULATOR 以在 host 模拟运行 libromfs-generator
# 此脚本即用来生成 host机器格式的 libromfs-generator
# ======== Manually building libromfs generator ========
# This project supports using libromfs to package the main program and resource files together to avoid additional file dependencies
# The function of libromfs-generator is to convert resource files into cpp source code and link them into the main program
# There are two solutions for cross-platform compilation:
# 1. Pre-compile libromfs-generator in the format of the host machine.
# 2. Set CMAKE_CROSSCOMPILING_EMULATOR to simulate execution libromfs-generator on the host.
# This script is used to generate libromfs-generator in the format of the host machine.
echo "Build libromfs-generator"
PROJECT_PATH=$(dirname "$0")
LIBROMFS_PATH="${PROJECT_PATH}/library/borealis/library/lib/extern/libromfs/generator"
BUILD_DIR="build_libromfs_generator"
cd "${PROJECT_PATH}"
# build libromfs-generator
cmake -B ${BUILD_DIR} "${LIBROMFS_PATH}"
make -C ${BUILD_DIR}
# put libromfs-generator under the jni folder
cp ${BUILD_DIR}/libromfs-generator "${PROJECT_PATH}"
echo "Build libromfs-generator: ${PROJECT_PATH}/libromfs-generator"
# remove build folder
rm -rf ${BUILD_DIR}
echo "Remove temp build dir: ${BUILD_DIR}"
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/include/activity/main_activity.hpp | C++ Header | /*
Copyright 2020-2021 natinusala
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#pragma once
#include <borealis.hpp>
class MainActivity : public brls::Activity
{
public:
// Declare that the content of this activity is the given XML file
CONTENT_FROM_XML_RES("activity/main.xml");
};
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/include/tab/components_tab.hpp | C++ Header | /*
Copyright 2021 natinusala
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#pragma once
#include <borealis.hpp>
class ComponentsTab : public brls::Box
{
public:
ComponentsTab();
static brls::View* create();
private:
BRLS_BIND(brls::Label, progress, "progress");
BRLS_BIND(brls::Slider, slider, "slider");
bool onPrimaryButtonClicked(brls::View* view);
};
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/include/tab/recycling_list_tab.hpp | C++ Header | /*
Copyright 2020-2021 natinusala
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#pragma once
#include <borealis.hpp>
class RecyclerHeader
: public brls::RecyclerHeader
{
};
class RecyclerCell
: public brls::RecyclerCell
{
public:
RecyclerCell();
BRLS_BIND(brls::Rectangle, accent, "brls/sidebar/item_accent");
BRLS_BIND(brls::Label, label, "title");
BRLS_BIND(brls::Image, image, "image");
static RecyclerCell* create();
};
class DataSource
: public brls::RecyclerDataSource
{
public:
int numberOfSections(brls::RecyclerFrame* recycler) override;
int numberOfRows(brls::RecyclerFrame* recycler, int section) override;
brls::RecyclerCell* cellForRow(brls::RecyclerFrame* recycler, brls::IndexPath index) override;
void didSelectRowAt(brls::RecyclerFrame* recycler, brls::IndexPath indexPath) override;
std::string titleForHeader(brls::RecyclerFrame* recycler, int section) override;
};
class RecyclingListTab : public brls::Box
{
public:
RecyclingListTab();
static brls::View* create();
private:
BRLS_BIND(brls::RecyclerFrame, recycler, "recycler");
};
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/include/tab/settings_tab.hpp | C++ Header | /*
Copyright 2021 natinusala
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#pragma once
#include <borealis.hpp>
class SettingsTab : public brls::Box
{
public:
SettingsTab();
BRLS_BIND(brls::RadioCell, radio, "radio");
BRLS_BIND(brls::BooleanCell, boolean, "boolean");
BRLS_BIND(brls::SelectorCell, selector, "selector");
BRLS_BIND(brls::InputCell, input, "input");
BRLS_BIND(brls::InputNumericCell, inputNumeric, "inputNumeric");
BRLS_BIND(brls::DetailCell, ipAddress, "ipAddress");
BRLS_BIND(brls::DetailCell, dnsServer, "dnsServer");
BRLS_BIND(brls::BooleanCell, debug, "debug");
BRLS_BIND(brls::BooleanCell, bottomBar, "bottomBar");
BRLS_BIND(brls::BooleanCell, alwaysOnTop, "alwaysOnTop");
BRLS_BIND(brls::BooleanCell, fps, "fps");
BRLS_BIND(brls::SelectorCell, swapInterval, "swapInterval");
BRLS_BIND(brls::SliderCell, slider, "slider");
BRLS_BIND(brls::DetailCell, notify, "notify");
static brls::View* create();
};
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/include/tab/text_test_tab.hpp | C++ Header | /*
Copyright 2024 xfangfang
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#pragma once
#include <borealis.hpp>
class TextTestTab : public brls::Box
{
public:
TextTestTab();
static brls::View* create();
private:
BRLS_BIND(brls::SliderCell, width, "width");
BRLS_BIND(brls::SliderCell, height, "height");
BRLS_BIND(brls::BooleanCell, singleLine, "singleLine");
BRLS_BIND(brls::SelectorCell, horizontal, "horizontal");
BRLS_BIND(brls::SelectorCell, vertical, "vertical");
BRLS_BIND(brls::Label, label, "label");
};
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/include/tab/transform_tab.hpp | C++ Header | /*
Copyright 2024 xfangfang
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#pragma once
#include <borealis.hpp>
class TransformBox: public brls::Image {
public:
void draw(NVGcontext* vg, float x, float y, float width, float height, brls::Style style, brls::FrameContext* ctx) override;
static brls::View* create();
void setRotate(float deg);
void setSkewX(float deg);
void setSkewY(float deg);
void setScaleX(float size);
void setScaleY(float size);
void setFontScaleX(float size);
void setFontScaleY(float size);
private:
float skew_x{}, skew_y{}, rotate{}, scale_x{1}, scale_y{1};
float font_scale_x{1}, font_scale_y{1};
};
class TransformTab : public brls::Box
{
public:
TransformTab();
static brls::View* create();
private:
BRLS_BIND(TransformBox, box, "box");
BRLS_BIND(brls::SliderCell, transX, "transX");
BRLS_BIND(brls::SliderCell, transY, "transY");
BRLS_BIND(brls::SliderCell, scaleX, "scaleX");
BRLS_BIND(brls::SliderCell, scaleY, "scaleY");
BRLS_BIND(brls::SliderCell, skewX, "skewX");
BRLS_BIND(brls::SliderCell, skewY, "skewY");
BRLS_BIND(brls::SliderCell, rotate, "rotate");
BRLS_BIND(brls::SliderCell, boxWidth, "width");
BRLS_BIND(brls::SliderCell, boxHeight, "height");
BRLS_BIND(brls::SliderCell, fontScaleX, "fontScaleX");
BRLS_BIND(brls::SliderCell, fontScaleY, "fontScaleY");
BRLS_BIND(brls::Button, reset, "reset");
BRLS_BIND(brls::Button, play, "play");
static void registerCell(brls::SliderCell* cell, float init, const std::string& title, const std::function<float(float)>& cb);
brls::Animatable aniX, aniY, skew, skew2;
};
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/include/view/captioned_image.hpp | C++ Header | /*
Copyright 2020-2021 natinusala
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#pragma once
#include <borealis.hpp>
class CaptionedImage : public brls::Box
{
public:
CaptionedImage();
void onChildFocusGained(brls::View* directChild, brls::View* focusedView) override;
void onChildFocusLost(brls::View* directChild, brls::View* focusedView) override;
static brls::View* create();
private:
BRLS_BIND(brls::Image, image, "image");
BRLS_BIND(brls::Label, label, "label");
};
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/include/view/pokemon_view.hpp | C++ Header | /*
Copyright 2021 XITRIX
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#pragma once
#include <borealis.hpp>
class Pokemon
{
public:
std::string id;
std::string name;
Pokemon(std::string id, std::string name)
: id(id)
, name(name)
{
}
};
class PokemonView : public brls::Box
{
public:
PokemonView(Pokemon pokemon);
PokemonView()
: PokemonView(Pokemon("001", "ТУПА ПАКИМОН!!!"))
{
}
static brls::View* create();
private:
Pokemon pokemon;
BRLS_BIND(brls::Image, image, "image");
BRLS_BIND(brls::Label, description, "description");
};
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/src/activity/main_activity.cpp | C++ | /*
Copyright 2020-2021 natinusala
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "activity/main_activity.hpp"
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/src/main.cpp | C++ | /*
Copyright 2020-2021 natinusala
Copyright 2019 p-sam
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#if defined(ANDROID) || defined(IOS)
#include <SDL2/SDL_main.h>
#endif
#include <borealis.hpp>
#include <cstdlib>
#include <string>
#include "view/captioned_image.hpp"
#include "view/pokemon_view.hpp"
#include "tab/components_tab.hpp"
#include "tab/transform_tab.hpp"
#include "tab/recycling_list_tab.hpp"
#include "tab/settings_tab.hpp"
#include "tab/text_test_tab.hpp"
#include "activity/main_activity.hpp"
#if defined(__PSV__) && defined(BOREALIS_USE_OPENGL)
// Needed for the OpenGL driver to work
extern "C" unsigned int sceLibcHeapSize = 2 * 1024 * 1024;
#endif
using namespace brls::literals; // for _i18n
int main(int argc, char* argv[])
{
// We recommend to use INFO for real apps
for (int i = 1; i < argc; i++) {
if (std::strcmp(argv[i], "-d") == 0) { // Set log level
brls::Logger::setLogLevel(brls::LogLevel::LOG_DEBUG);
} else if (std::strcmp(argv[i], "-o") == 0) {
const char* path = (i + 1 < argc) ? argv[++i] : "borealis.log";
brls::Logger::setLogOutput(std::fopen(path, "w+"));
} else if (std::strcmp(argv[i], "-v") == 0) {
brls::Application::enableDebuggingView(true);
}
}
// Init the app and i18n
if (!brls::Application::init())
{
brls::Logger::error("Unable to init Borealis application");
return EXIT_FAILURE;
}
brls::Application::createWindow("demo/title"_i18n);
brls::Application::getPlatform()->setThemeVariant(brls::ThemeVariant::DARK);
// Have the application register an action on every activity that will quit when you press BUTTON_START
brls::Application::setGlobalQuit(false);
// Register custom views (including tabs, which are views)
brls::Application::registerXMLView("CaptionedImage", CaptionedImage::create);
brls::Application::registerXMLView("RecyclingListTab", RecyclingListTab::create);
brls::Application::registerXMLView("ComponentsTab", ComponentsTab::create);
brls::Application::registerXMLView("TransformTab", TransformTab::create);
brls::Application::registerXMLView("TransformBox", TransformBox::create);
brls::Application::registerXMLView("PokemonView", PokemonView::create);
brls::Application::registerXMLView("SettingsTab", SettingsTab::create);
brls::Application::registerXMLView("TextTestTab", TextTestTab::create);
// Add custom values to the theme
brls::Theme::getLightTheme().addColor("captioned_image/caption", nvgRGB(2, 176, 183));
brls::Theme::getDarkTheme().addColor("captioned_image/caption", nvgRGB(51, 186, 227));
// Add custom values to the style
brls::getStyle().addMetric("about/padding_top_bottom", 50);
brls::getStyle().addMetric("about/padding_sides", 75);
brls::getStyle().addMetric("about/description_margin", 50);
// Create and push the main activity to the stack
brls::Application::pushActivity(new MainActivity());
// Run the app
while (brls::Application::mainLoop())
;
// Exit
return EXIT_SUCCESS;
}
#ifdef __WINRT__
#include <borealis/core/main.hpp>
#endif
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/src/tab/components_tab.cpp | C++ | /*
Copyright 2021 natinusala
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "tab/components_tab.hpp"
ComponentsTab::ComponentsTab()
{
// Inflate the tab from the XML file
this->inflateFromXMLRes("xml/tabs/components.xml");
// Bind the button click to a method using the macro (just for the sake of showcasing it, it's overkill in this situation)
BRLS_REGISTER_CLICK_BY_ID("button_primary", this->onPrimaryButtonClicked);
// Get a handle to the button and register the action directly
brls::Button* highlightButton = (brls::Button*)this->getView("button_highlight");
highlightButton->registerAction(
"Honk", brls::BUTTON_A, [](brls::View* view) { return true; }, false, false, brls::SOUND_HONK);
progress->setText(std::to_string((int)(slider->getProgress() * 100)));
slider->getProgressEvent()->subscribe([this](float progress) {
this->progress->setText(std::to_string((int)(progress * 100)));
});
}
int selected = 0;
bool ComponentsTab::onPrimaryButtonClicked(brls::View* view)
{
// brls::AppletFrame* frame = new brls::AppletFrame(PokemonView::create());
// frame->setFooterVisibility(brls::Visibility::GONE);
// brls::Application::pushActivity(new brls::Activity(frame));
brls::Dropdown* dropdown = new brls::Dropdown(
"Test", std::vector<std::string> { "Test 1", "Test 2", "Test 3", "Test 4", "Test 5", "Test 6", "Test 7", "Test 8", "Test 9", "Test 10", "Test 11", "Test 12", "Test 13" }, [](int _selected) {
selected = _selected;
},
selected);
// brls::Dropdown* dropdown = new brls::Dropdown(
// "Test", std::vector<std::string> { "Test 1", "Test 2", "Test 3" }, [](int _selected) {
// selected = _selected;
// },
// selected);
brls::Application::pushActivity(new brls::Activity(dropdown));
brls::Logger::info("Clicked");
return true;
}
brls::View* ComponentsTab::create()
{
// Called by the XML engine to create a new ComponentsTab
return new ComponentsTab();
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/src/tab/recycling_list_tab.cpp | C++ | /*
Copyright 2020-2021 natinusala
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "tab/recycling_list_tab.hpp"
#include "view/pokemon_view.hpp"
std::vector<Pokemon> pokemons;
RecyclerCell::RecyclerCell()
{
this->inflateFromXMLRes("xml/cells/cell.xml");
}
RecyclerCell* RecyclerCell::create()
{
return new RecyclerCell();
}
// DATA SOURCE
int DataSource::numberOfSections(brls::RecyclerFrame* recycler)
{
return 2;
}
int DataSource::numberOfRows(brls::RecyclerFrame* recycler, int section)
{
return pokemons.size();
}
std::string DataSource::titleForHeader(brls::RecyclerFrame* recycler, int section)
{
if (section == 0)
return "";
return "Section #" + std::to_string(section+1);
}
brls::RecyclerCell* DataSource::cellForRow(brls::RecyclerFrame* recycler, brls::IndexPath indexPath)
{
RecyclerCell* item = (RecyclerCell*)recycler->dequeueReusableCell("Cell");
item->label->setText(pokemons[indexPath.row].name);
item->image->setImageFromRes("img/pokemon/thumbnails/" + pokemons[indexPath.row].id + ".png");
return item;
}
void DataSource::didSelectRowAt(brls::RecyclerFrame* recycler, brls::IndexPath indexPath)
{
// brls::Logger::info("Item Index(" + std::to_string(index.section) + ":" + std::to_string(index.row) + ") selected.");
recycler->present(new PokemonView(pokemons[indexPath.row]));
}
// RECYCLER VIEW
RecyclingListTab::RecyclingListTab()
{
// Inflate the tab from the XML file
this->inflateFromXMLRes("xml/tabs/recycling_list.xml");
pokemons.clear();
pokemons.push_back(Pokemon("001", "Bulbasaur"));
pokemons.push_back(Pokemon("004", "Charmander"));
pokemons.push_back(Pokemon("007", "Squirtle"));
pokemons.push_back(Pokemon("011", "Metapod"));
pokemons.push_back(Pokemon("014", "Kakuna"));
pokemons.push_back(Pokemon("017", "Pidgeotto"));
pokemons.push_back(Pokemon("021", "Spearow"));
pokemons.push_back(Pokemon("024", "Arbok"));
pokemons.push_back(Pokemon("027", "Sandshrew"));
recycler->estimatedRowHeight = 70;
recycler->registerCell("Header", []() { return RecyclerHeader::create(); });
recycler->registerCell("Cell", []() { return RecyclerCell::create(); });
recycler->setDataSource(new DataSource());
}
brls::View* RecyclingListTab::create()
{
// Called by the XML engine to create a new RecyclingListTab
return new RecyclingListTab();
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/src/tab/settings_tab.cpp | C++ | /*
Copyright 2021 natinusala
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "tab/settings_tab.hpp"
using namespace brls::literals; // for _i18n
bool radioSelected = false;
static std::vector<std::string> NOTIFICATIONS = {
"You have cool hair",
"I like your shoes",
"borealis is powered by nanovg",
"The Triforce is an inside job",
"Pozznx will trigger in one day and twelve hours",
"Aurora Borealis? At this time of day, at this time of year, in this part of the gaming market, located entirely within your Switch?!",
"May I see it?",
"Hmm, Steamed Hams!",
"Hello\nWorld!"
};
SettingsTab::SettingsTab()
{
// Inflate the tab from the XML file
this->inflateFromXMLRes("xml/tabs/settings.xml");
radio->title->setText("Radio cell");
radio->setSelected(radioSelected);
radio->registerClickAction([this](brls::View* view) {
radioSelected = !radioSelected;
this->radio->setSelected(radioSelected);
return true;
});
boolean->title->setText("Switcher");
debug->init("Debug Layer", brls::Application::isDebuggingViewEnabled(), [](bool value){
brls::Application::enableDebuggingView(value);
brls::sync([value](){
brls::Logger::info("{} the debug layer", value ? "Open" : "Close");
});
});
bottomBar->init("Bottom Bar", !brls::AppletFrame::HIDE_BOTTOM_BAR, [](bool value){
brls::AppletFrame::HIDE_BOTTOM_BAR = !value;
auto stack = brls::Application::getActivitiesStack();
for (auto& activity : stack) {
auto* frame = dynamic_cast<brls::AppletFrame*>(
activity->getContentView());
if (!frame) continue;
frame->setFooterVisibility(!value ? brls::Visibility::GONE
: brls::Visibility::VISIBLE);
}
});
fps->init("FPS", brls::Application::getFPSStatus(), [](bool value){
brls::Application::setFPSStatus(value);
});
swapInterval->init("Swap Interval", {"0", "1", "2", "3", "4"}, 1, [](int selected) {},
[](int selected) { brls::Application::setSwapInterval(selected); });
alwaysOnTop->init("Always On Top", false, [](bool value){
brls::Application::getPlatform()->setWindowAlwaysOnTop(value);
});
selector->init("Selector", { "Test 1", "Test 2", "Test 3", "Test 4", "Test 5", "Test 6", "Test 7", "Test 8", "Test 9", "Test 10", "Test 11", "Test 12", "Test 13" }, 0, [](int selected) {
}, [](int selected) {
auto dialog = new brls::Dialog(fmt::format("selected {}", selected));
dialog->addButton("hints/ok"_i18n, []() {});
dialog->open();
});
input->init(
"Input text", "https://github.com", [](std::string text) {
},
"Placeholder", "Hint");
inputNumeric->init(
"Input number", 2448, [](int number) {
},
"Hint");
ipAddress->setDetailText(brls::Application::getPlatform()->getIpAddress());
dnsServer->setDetailText(brls::Application::getPlatform()->getDnsServer());
input->registerAction("hints/open"_i18n, brls::BUTTON_X, [](brls::View* view) {
brls::DetailCell *cell = dynamic_cast<brls::DetailCell *>(view);
brls::Application::getPlatform()->openBrowser(cell->detail->getFullText());
return true;
}, false, false, brls::SOUND_CLICK);
float brightness = brls::Application::getPlatform()->getBacklightBrightness();
slider->init("Brightness", brightness, [this](float value){
brls::Application::getPlatform()->setBacklightBrightness(value);
slider->setDetailText(fmt::format("{:.2f}", value));
});
slider->setDetailText(fmt::format("{:.2f}", brightness));
notify->registerClickAction([](...){
std::string notification = NOTIFICATIONS[std::rand() % NOTIFICATIONS.size()];
brls::Application::notify(notification);
return true;
});
}
brls::View* SettingsTab::create()
{
return new SettingsTab();
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/src/tab/text_test_tab.cpp | C++ | /*
Copyright 2024 xfangfang
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "tab/text_test_tab.hpp"
static void registerSliderCell(brls::SliderCell* cell, float init, const std::string& title, const std::function<int(float)>& cb)
{
int res = cb(init);
cell->setDetailText(res == 0 ? "auto" : fmt::format("{}", res));
cell->slider->setPointerSize(20);
cell->init(title, init, [cb, cell](float value)
{
int res = cb(value);
cell->setDetailText(res == 0 ? "auto" : fmt::format("{}", res)); });
}
TextTestTab::TextTestTab()
{
// Inflate the tab from the XML file
this->inflateFromXMLRes("xml/tabs/text_test.xml");
registerSliderCell(width, 1.0f, "width", [this](float value)
{
value *= 400;
label->setWidth(value <= 0.0f ? brls::View::AUTO : value); return value; });
registerSliderCell(height, 0.0f, "height", [this](float value)
{
value *= 400;
singleLine->setVisibility(value <= 0.0f ? brls::Visibility::VISIBLE : brls::Visibility::GONE);
label->setHeight(value <= 0.0f ? brls::View::AUTO : value); return value; });
vertical->init("verticalAlign", { "baseline", "top", "center", "bottom" }, 2, [this](int value)
{
label->setVerticalAlign((brls::VerticalAlign)value); return value; });
horizontal->init("horizontalAlign", { "left", "center", "right" }, 0, [this](int value)
{
label->setHorizontalAlign((brls::HorizontalAlign)value); return value; });
singleLine->init("singleLine", false, [this](bool value)
{
label->setSingleLine(value); return value; });
}
brls::View* TextTestTab::create()
{
return new TextTestTab();
} | xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/src/tab/transform_tab.cpp | C++ | /*
Copyright 2024 xfangfang
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "tab/transform_tab.hpp"
#define POINTER_SIZE 20
#define BOX_SIZE 100
#define CONTAINER_SIZE 400
#define ANIMATION 4000
TransformTab::TransformTab()
{
// Inflate the tab from the XML file
this->inflateFromXMLRes("xml/tabs/transform.xml");
play->registerClickAction([this](...)
{
aniX.stop();
aniY.stop();
skew.stop();
skew2.stop();
aniX.reset(0);
aniX.addStep(1.0, ANIMATION, brls::EasingFunction::exponentialOut);
aniX.addStep(0, ANIMATION, brls::EasingFunction::cubicIn);
aniX.addStep(0.5, ANIMATION, brls::EasingFunction::exponentialOut);
aniX.addStep(0, ANIMATION, brls::EasingFunction::cubicIn);
aniX.setTickCallback([this](){transX->slider->setProgress(aniX);});
aniY.reset(0);
aniY.addStep(1.0, ANIMATION, brls::EasingFunction::bounceOut);
aniY.addStep(0.0, ANIMATION, brls::EasingFunction::cubicIn);
aniY.addStep(1.0, ANIMATION, brls::EasingFunction::bounceOut);
aniY.addStep(0.0, ANIMATION, brls::EasingFunction::cubicIn);
aniY.setTickCallback([this](){transY->slider->setProgress(aniY);});
skew.reset(0);
skew.addStep(1, ANIMATION, brls::EasingFunction::bounceOut);
skew.addStep(0, ANIMATION, brls::EasingFunction::cubicIn);
skew.setTickCallback([this](){
skewY->slider->setProgress(skew);
scaleX->slider->setProgress(1 - skew);
});
skew2.reset(0);
skew2.addStep(0, ANIMATION * 2);
skew2.addStep(1, ANIMATION, brls::EasingFunction::bounceOut);
skew2.addStep(0, ANIMATION, brls::EasingFunction::cubicIn);
skew2.setTickCallback([this](){
skewX->slider->setProgress(skew2);
scaleY->slider->setProgress(1 - skew2);
});
aniX.start();
aniY.start();
skew.start();
skew2.start();
return true; });
reset->registerClickAction([this](...)
{
aniX.stop();
aniY.stop();
skew.stop();
skew2.stop();
transX->slider->setProgress(0);
transY->slider->setProgress(0);
scaleX->slider->setProgress(1);
scaleY->slider->setProgress(1);
skewX->slider->setProgress(0);
skewY->slider->setProgress(0);
rotate->slider->setProgress(0);
boxWidth->slider->setProgress(1);
boxHeight->slider->setProgress(1);
fontScaleX->slider->setProgress(1);
fontScaleY->slider->setProgress(1);
return true; });
registerCell(transX, 0, "transX", [this](float value)
{ box->setTranslationX((CONTAINER_SIZE - BOX_SIZE) * value); return value; });
registerCell(transY, 0, "transY", [this](float value)
{ box->setTranslationY((CONTAINER_SIZE - BOX_SIZE) * value); return value; });
registerCell(scaleX, 1, "scaleX", [this](float value)
{ value = value * 2 - 1;
box->setScaleX(value); return value; });
registerCell(scaleY, 1, "scaleY", [this](float value)
{ value = value * 2 - 1;
box->setScaleY(value); return value; });
registerCell(skewX, 0, "skewX", [this](float value)
{ box->setSkewX(value * NVG_PI); return value; });
registerCell(skewY, 0, "skewY", [this](float value)
{ box->setSkewY(value * NVG_PI); return value; });
registerCell(rotate, 0, "rotate", [this](float value)
{ box->setRotate(value * NVG_PI * 2); return value; });
registerCell(boxWidth, 1, "width", [this](float value)
{ box->setWidth(value * BOX_SIZE); return value; });
registerCell(boxHeight, 1, "height", [this](float value)
{ box->setHeight(value * BOX_SIZE); return value; });
registerCell(fontScaleX, 1, "fontSX", [this](float value)
{ value = value * 2 - 1;
box->setFontScaleX(value); return value; });
registerCell(fontScaleY, 1, "fontSY", [this](float value)
{ value = value * 2 - 1;
box->setFontScaleY(value); return value; });
}
void TransformTab::registerCell(brls::SliderCell* cell, float init, const std::string& title, const std::function<float(float)>& cb)
{
cell->setDetailText(fmt::format("{:.2f}", cb(init)));
cell->slider->setPointerSize(POINTER_SIZE);
cell->init(title, init, [cb, cell](float value)
{ cell->setDetailText(fmt::format("{:.2f}", cb(value))); });
}
brls::View* TransformTab::create()
{
return new TransformTab();
}
void TransformBox::draw(NVGcontext* vg, float x, float y, float width, float height, brls::Style style, brls::FrameContext* ctx)
{
float centerX = width * fabs(scale_x) / 2, centerY = height * fabs(scale_y) / 2;
nvgSave(vg);
nvgTranslate(vg, x + centerX, y + centerY);
nvgRotate(vg, rotate);
nvgSkewX(vg, skew_x);
nvgSkewY(vg, skew_y);
nvgScale(vg, scale_x, scale_y);
brls::Image::draw(vg, -centerX, -centerY, width, height, style, ctx);
nvgTranslate(vg, -centerX, -centerY);
nvgScale(vg, font_scale_x, font_scale_y);
nvgText(vg, 4, 18, "demo", nullptr);
nvgRestore(vg);
}
void TransformBox::setRotate(float deg)
{
rotate = deg;
}
void TransformBox::setSkewX(float deg)
{
skew_x = deg;
}
void TransformBox::setSkewY(float deg)
{
skew_y = deg;
}
void TransformBox::setScaleX(float value)
{
scale_x = value;
}
void TransformBox::setScaleY(float value)
{
scale_y = value;
}
void TransformBox::setFontScaleX(float size)
{
font_scale_x = size;
}
void TransformBox::setFontScaleY(float size)
{
font_scale_y = size;
}
brls::View* TransformBox::create()
{
return new TransformBox();
} | xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/src/view/captioned_image.cpp | C++ | /*
Copyright 2020-2021 natinusala
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "view/captioned_image.hpp"
CaptionedImage::CaptionedImage()
{
// Load the XML file and inflate ourself with its content
// The top-level Box in the XML corresponds to us, and every XML child
// is added to our children (and the attributes are applied)
// The CaptionedImage instance basically becomes what's written in the XML
this->inflateFromXMLRes("xml/views/captioned_image.xml");
// The label stays hidden until focused, so hide it right away
this->label->hide([] {});
// Forward Image and Label XML attributes
this->forwardXMLAttribute("scalingType", this->image);
this->forwardXMLAttribute("image", this->image);
this->forwardXMLAttribute("focusUp", this->image);
this->forwardXMLAttribute("focusRight", this->image);
this->forwardXMLAttribute("focusDown", this->image);
this->forwardXMLAttribute("focusLeft", this->image);
this->forwardXMLAttribute("imageWidth", this->image, "width");
this->forwardXMLAttribute("imageHeight", this->image, "height");
this->forwardXMLAttribute("caption", this->label, "text");
this->addGestureRecognizer(new brls::TapGestureRecognizer(this, brls::TapGestureConfig(false, brls::SOUND_NONE, brls::SOUND_NONE, brls::SOUND_NONE)));
}
void CaptionedImage::onChildFocusGained(brls::View* directChild, brls::View* focusedView)
{
// Called when a child of ours gets focused, in that case it's the Image
Box::onChildFocusGained(directChild, focusedView);
this->label->show([] {});
}
void CaptionedImage::onChildFocusLost(brls::View* directChild, brls::View* focusedView)
{
// Called when a child of ours losts focused, in that case it's the Image
Box::onChildFocusLost(directChild, focusedView);
this->label->hide([] {});
}
brls::View* CaptionedImage::create()
{
// Called by the XML engine to create a new CaptionedImage
return new CaptionedImage();
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
demo/src/view/pokemon_view.cpp | C++ | /*
Copyright 2021 XITRIX
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "view/pokemon_view.hpp"
#include <borealis/core/i18n.hpp>
using namespace brls::literals;
bool dismissView(brls::View* view, PokemonView* pock)
{
return true;
}
PokemonView::PokemonView(Pokemon pokemon)
: pokemon(pokemon)
{
// Inflate the tab from the XML file
this->inflateFromXMLRes("xml/views/pokemon.xml");
auto dismissAction = [this](View* view) {
this->dismiss();
return true;
};
brls::Label* label = new brls::Label();
label->setText(brls::Hint::getKeyIcon(brls::ControllerButton::BUTTON_RB) + " Закрыть");
label->setFontSize(24);
label->setMargins(0, 12, 0, 12);
brls::Box* holder = new brls::Box();
holder->addView(label);
holder->setFocusable(true);
holder->addGestureRecognizer(new brls::TapGestureRecognizer(holder));
holder->registerClickAction(dismissAction);
holder->registerAction("Close", brls::ControllerButton::BUTTON_RB, dismissAction, true);
registerAction("Close", brls::ControllerButton::BUTTON_RB, dismissAction, true);
getAppletFrameItem()->title = pokemon.name;
getAppletFrameItem()->setIconFromRes("img/pokemon/" + pokemon.id + ".png");
// getAppletFrameItem()->hintView = holder;
image->setImageFromRes("img/pokemon/" + pokemon.id + ".png");
description->setText("It's a pokemon with name: " + pokemon.name + "\nCollect them all to became a Shaman king!");
this->getView("close_button")->registerAction(
"hints/ok"_i18n, brls::BUTTON_A, [this](brls::View* view) {
this->dismiss();
return true;
},
false, false, brls::SOUND_BACK);
}
brls::View* PokemonView::create()
{
// Called by the XML engine to create a new ComponentsTab
return new PokemonView();
}
| xfangfang/borealis_template | 3 | Template project for borealis | Java | xfangfang | ||
example/demo.c | C | #include "demo.h"
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "nanovg.h"
#define STB_IMAGE_WRITE_IMPLEMENTATION
#include "stb_image_write.h"
#ifdef _MSC_VER
#define snprintf _snprintf
#elif !defined(__MINGW32__)
#include <iconv.h>
#endif
#define ICON_SEARCH 0x1F50D
#define ICON_CIRCLED_CROSS 0x2716
#define ICON_CHEVRON_RIGHT 0xE75E
#define ICON_CHECK 0x2713
#define ICON_LOGIN 0xE740
#define ICON_TRASH 0xE729
//static float minf(float a, float b) { return a < b ? a : b; }
//static float maxf(float a, float b) { return a > b ? a : b; }
//static float absf(float a) { return a >= 0.0f ? a : -a; }
static float clampf(float a, float mn, float mx) { return a < mn ? mn : (a > mx ? mx : a); }
// Returns 1 if col.rgba is 0.0f,0.0f,0.0f,0.0f, 0 otherwise
int isBlack(NVGcolor col)
{
if( col.r == 0.0f && col.g == 0.0f && col.b == 0.0f && col.a == 0.0f )
{
return 1;
}
return 0;
}
static char* cpToUTF8(int cp, char* str)
{
int n = 0;
if (cp < 0x80) n = 1;
else if (cp < 0x800) n = 2;
else if (cp < 0x10000) n = 3;
else if (cp < 0x200000) n = 4;
else if (cp < 0x4000000) n = 5;
else if (cp <= 0x7fffffff) n = 6;
str[n] = '\0';
switch (n) {
case 6: str[5] = 0x80 | (cp & 0x3f); cp = cp >> 6; cp |= 0x4000000;
case 5: str[4] = 0x80 | (cp & 0x3f); cp = cp >> 6; cp |= 0x200000;
case 4: str[3] = 0x80 | (cp & 0x3f); cp = cp >> 6; cp |= 0x10000;
case 3: str[2] = 0x80 | (cp & 0x3f); cp = cp >> 6; cp |= 0x800;
case 2: str[1] = 0x80 | (cp & 0x3f); cp = cp >> 6; cp |= 0xc0;
case 1: str[0] = cp;
}
return str;
}
void drawWindow(NVGcontext* vg, const char* title, float x, float y, float w, float h)
{
float cornerRadius = 3.0f;
NVGpaint shadowPaint;
NVGpaint headerPaint;
nvgSave(vg);
// nvgClearState(vg);
// Window
nvgBeginPath(vg);
nvgRoundedRect(vg, x,y, w,h, cornerRadius);
nvgFillColor(vg, nvgRGBA(28,30,34,192));
// nvgFillColor(vg, nvgRGBA(0,0,0,128));
nvgFill(vg);
// Drop shadow
shadowPaint = nvgBoxGradient(vg, x,y+2, w,h, cornerRadius*2, 10, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0));
nvgBeginPath(vg);
nvgRect(vg, x-10,y-10, w+20,h+30);
nvgRoundedRect(vg, x,y, w,h, cornerRadius);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, shadowPaint);
nvgFill(vg);
// Header
headerPaint = nvgLinearGradient(vg, x,y,x,y+15, nvgRGBA(255,255,255,8), nvgRGBA(0,0,0,16));
nvgBeginPath(vg);
nvgRoundedRect(vg, x+1,y+1, w-2,30, cornerRadius-1);
nvgFillPaint(vg, headerPaint);
nvgFill(vg);
nvgBeginPath(vg);
nvgMoveTo(vg, x+0.5f, y+0.5f+30);
nvgLineTo(vg, x+0.5f+w-1, y+0.5f+30);
nvgStrokeColor(vg, nvgRGBA(0,0,0,32));
nvgStroke(vg);
nvgFontSize(vg, 15.0f);
nvgFontFace(vg, "sans-bold");
nvgTextAlign(vg,NVG_ALIGN_CENTER|NVG_ALIGN_MIDDLE);
nvgFontBlur(vg,2);
nvgFillColor(vg, nvgRGBA(0,0,0,128));
nvgText(vg, x+w/2,y+16+1, title, NULL);
nvgFontBlur(vg,0);
nvgFillColor(vg, nvgRGBA(220,220,220,160));
nvgText(vg, x+w/2,y+16, title, NULL);
nvgRestore(vg);
}
void drawSearchBox(NVGcontext* vg, const char* text, float x, float y, float w, float h)
{
NVGpaint bg;
char icon[8];
float cornerRadius = h/2-1;
// Edit
bg = nvgBoxGradient(vg, x,y+1.5f, w,h, h/2,5, nvgRGBA(0,0,0,16), nvgRGBA(0,0,0,92));
nvgBeginPath(vg);
nvgRoundedRect(vg, x,y, w,h, cornerRadius);
nvgFillPaint(vg, bg);
nvgFill(vg);
/* nvgBeginPath(vg);
nvgRoundedRect(vg, x+0.5f,y+0.5f, w-1,h-1, cornerRadius-0.5f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,48));
nvgStroke(vg);*/
nvgFontSize(vg, h*1.3f);
nvgFontFace(vg, "icons");
nvgFillColor(vg, nvgRGBA(255,255,255,64));
nvgTextAlign(vg,NVG_ALIGN_CENTER|NVG_ALIGN_MIDDLE);
nvgText(vg, x+h*0.55f, y+h*0.55f, cpToUTF8(ICON_SEARCH,icon), NULL);
nvgFontSize(vg, 17.0f);
nvgFontFace(vg, "sans");
nvgFillColor(vg, nvgRGBA(255,255,255,32));
nvgTextAlign(vg,NVG_ALIGN_LEFT|NVG_ALIGN_MIDDLE);
nvgText(vg, x+h*1.05f,y+h*0.5f,text, NULL);
nvgFontSize(vg, h*1.3f);
nvgFontFace(vg, "icons");
nvgFillColor(vg, nvgRGBA(255,255,255,32));
nvgTextAlign(vg,NVG_ALIGN_CENTER|NVG_ALIGN_MIDDLE);
nvgText(vg, x+w-h*0.55f, y+h*0.55f, cpToUTF8(ICON_CIRCLED_CROSS,icon), NULL);
}
void drawDropDown(NVGcontext* vg, const char* text, float x, float y, float w, float h)
{
NVGpaint bg;
char icon[8];
float cornerRadius = 4.0f;
bg = nvgLinearGradient(vg, x,y,x,y+h, nvgRGBA(255,255,255,16), nvgRGBA(0,0,0,16));
nvgBeginPath(vg);
nvgRoundedRect(vg, x+1,y+1, w-2,h-2, cornerRadius-1);
nvgFillPaint(vg, bg);
nvgFill(vg);
nvgBeginPath(vg);
nvgRoundedRect(vg, x+0.5f,y+0.5f, w-1,h-1, cornerRadius-0.5f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,48));
nvgStroke(vg);
nvgFontSize(vg, 17.0f);
nvgFontFace(vg, "sans");
nvgFillColor(vg, nvgRGBA(255,255,255,160));
nvgTextAlign(vg,NVG_ALIGN_LEFT|NVG_ALIGN_MIDDLE);
nvgText(vg, x+h*0.3f,y+h*0.5f,text, NULL);
nvgFontSize(vg, h*1.3f);
nvgFontFace(vg, "icons");
nvgFillColor(vg, nvgRGBA(255,255,255,64));
nvgTextAlign(vg,NVG_ALIGN_CENTER|NVG_ALIGN_MIDDLE);
nvgText(vg, x+w-h*0.5f, y+h*0.5f, cpToUTF8(ICON_CHEVRON_RIGHT,icon), NULL);
}
void drawLabel(NVGcontext* vg, const char* text, float x, float y, float w, float h)
{
NVG_NOTUSED(w);
nvgFontSize(vg, 15.0f);
nvgFontFace(vg, "sans");
nvgFillColor(vg, nvgRGBA(255,255,255,128));
nvgTextAlign(vg,NVG_ALIGN_LEFT|NVG_ALIGN_MIDDLE);
nvgText(vg, x,y+h*0.5f,text, NULL);
}
void drawEditBoxBase(NVGcontext* vg, float x, float y, float w, float h)
{
NVGpaint bg;
// Edit
bg = nvgBoxGradient(vg, x+1,y+1+1.5f, w-2,h-2, 3,4, nvgRGBA(255,255,255,32), nvgRGBA(32,32,32,32));
nvgBeginPath(vg);
nvgRoundedRect(vg, x+1,y+1, w-2,h-2, 4-1);
nvgFillPaint(vg, bg);
nvgFill(vg);
nvgBeginPath(vg);
nvgRoundedRect(vg, x+0.5f,y+0.5f, w-1,h-1, 4-0.5f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,48));
nvgStroke(vg);
}
void drawEditBox(NVGcontext* vg, const char* text, float x, float y, float w, float h)
{
drawEditBoxBase(vg, x,y, w,h);
nvgFontSize(vg, 17.0f);
nvgFontFace(vg, "sans");
nvgFillColor(vg, nvgRGBA(255,255,255,64));
nvgTextAlign(vg,NVG_ALIGN_LEFT|NVG_ALIGN_MIDDLE);
nvgText(vg, x+h*0.3f,y+h*0.5f,text, NULL);
}
void drawEditBoxNum(NVGcontext* vg,
const char* text, const char* units, float x, float y, float w, float h)
{
float uw;
drawEditBoxBase(vg, x,y, w,h);
uw = nvgTextBounds(vg, 0,0, units, NULL, NULL);
nvgFontSize(vg, 15.0f);
nvgFontFace(vg, "sans");
nvgFillColor(vg, nvgRGBA(255,255,255,64));
nvgTextAlign(vg,NVG_ALIGN_RIGHT|NVG_ALIGN_MIDDLE);
nvgText(vg, x+w-h*0.3f,y+h*0.5f,units, NULL);
nvgFontSize(vg, 17.0f);
nvgFontFace(vg, "sans");
nvgFillColor(vg, nvgRGBA(255,255,255,128));
nvgTextAlign(vg,NVG_ALIGN_RIGHT|NVG_ALIGN_MIDDLE);
nvgText(vg, x+w-uw-h*0.5f,y+h*0.5f,text, NULL);
}
void drawCheckBox(NVGcontext* vg, const char* text, float x, float y, float w, float h)
{
NVGpaint bg;
char icon[8];
NVG_NOTUSED(w);
nvgFontSize(vg, 15.0f);
nvgFontFace(vg, "sans");
nvgFillColor(vg, nvgRGBA(255,255,255,160));
nvgTextAlign(vg,NVG_ALIGN_LEFT|NVG_ALIGN_MIDDLE);
nvgText(vg, x+28,y+h*0.5f,text, NULL);
bg = nvgBoxGradient(vg, x+1,y+(int)(h*0.5f)-9+1, 18,18, 3,3, nvgRGBA(0,0,0,32), nvgRGBA(0,0,0,92));
nvgBeginPath(vg);
nvgRoundedRect(vg, x+1,y+(int)(h*0.5f)-9, 18,18, 3);
nvgFillPaint(vg, bg);
nvgFill(vg);
nvgFontSize(vg, 33);
nvgFontFace(vg, "icons");
nvgFillColor(vg, nvgRGBA(255,255,255,128));
nvgTextAlign(vg,NVG_ALIGN_CENTER|NVG_ALIGN_MIDDLE);
nvgText(vg, x+9+2, y+h*0.5f, cpToUTF8(ICON_CHECK,icon), NULL);
}
void drawButton(NVGcontext* vg, int preicon, const char* text, float x, float y, float w, float h, NVGcolor col)
{
NVGpaint bg;
char icon[8];
float cornerRadius = 4.0f;
float tw = 0, iw = 0;
bg = nvgLinearGradient(vg, x,y,x,y+h, nvgRGBA(255,255,255,isBlack(col)?16:32), nvgRGBA(0,0,0,isBlack(col)?16:32));
nvgBeginPath(vg);
nvgRoundedRect(vg, x+1,y+1, w-2,h-2, cornerRadius-1);
if (!isBlack(col)) {
nvgFillColor(vg, col);
nvgFill(vg);
}
nvgFillPaint(vg, bg);
nvgFill(vg);
nvgBeginPath(vg);
nvgRoundedRect(vg, x+0.5f,y+0.5f, w-1,h-1, cornerRadius-0.5f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,48));
nvgStroke(vg);
nvgFontSize(vg, 17.0f);
nvgFontFace(vg, "sans-bold");
tw = nvgTextBounds(vg, 0,0, text, NULL, NULL);
if (preicon != 0) {
nvgFontSize(vg, h*1.3f);
nvgFontFace(vg, "icons");
iw = nvgTextBounds(vg, 0,0, cpToUTF8(preicon,icon), NULL, NULL);
iw += h*0.15f;
}
if (preicon != 0) {
nvgFontSize(vg, h*1.3f);
nvgFontFace(vg, "icons");
nvgFillColor(vg, nvgRGBA(255,255,255,96));
nvgTextAlign(vg,NVG_ALIGN_LEFT|NVG_ALIGN_MIDDLE);
nvgText(vg, x+w*0.5f-tw*0.5f-iw*0.75f, y+h*0.5f, cpToUTF8(preicon,icon), NULL);
}
nvgFontSize(vg, 17.0f);
nvgFontFace(vg, "sans-bold");
nvgTextAlign(vg,NVG_ALIGN_LEFT|NVG_ALIGN_MIDDLE);
nvgFillColor(vg, nvgRGBA(0,0,0,160));
nvgText(vg, x+w*0.5f-tw*0.5f+iw*0.25f,y+h*0.5f-1,text, NULL);
nvgFillColor(vg, nvgRGBA(255,255,255,160));
nvgText(vg, x+w*0.5f-tw*0.5f+iw*0.25f,y+h*0.5f,text, NULL);
}
void drawSlider(NVGcontext* vg, float pos, float x, float y, float w, float h)
{
NVGpaint bg, knob;
float cy = y+(int)(h*0.5f);
float kr = (int)(h*0.25f);
nvgSave(vg);
// nvgClearState(vg);
// Slot
bg = nvgBoxGradient(vg, x,cy-2+1, w,4, 2,2, nvgRGBA(0,0,0,32), nvgRGBA(0,0,0,128));
nvgBeginPath(vg);
nvgRoundedRect(vg, x,cy-2, w,4, 2);
nvgFillPaint(vg, bg);
nvgFill(vg);
// Knob Shadow
bg = nvgRadialGradient(vg, x+(int)(pos*w),cy+1, kr-3,kr+3, nvgRGBA(0,0,0,64), nvgRGBA(0,0,0,0));
nvgBeginPath(vg);
nvgRect(vg, x+(int)(pos*w)-kr-5,cy-kr-5,kr*2+5+5,kr*2+5+5+3);
nvgCircle(vg, x+(int)(pos*w),cy, kr);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, bg);
nvgFill(vg);
// Knob
knob = nvgLinearGradient(vg, x,cy-kr,x,cy+kr, nvgRGBA(255,255,255,16), nvgRGBA(0,0,0,16));
nvgBeginPath(vg);
nvgCircle(vg, x+(int)(pos*w),cy, kr-1);
nvgFillColor(vg, nvgRGBA(40,43,48,255));
nvgFill(vg);
nvgFillPaint(vg, knob);
nvgFill(vg);
nvgBeginPath(vg);
nvgCircle(vg, x+(int)(pos*w),cy, kr-0.5f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,92));
nvgStroke(vg);
nvgRestore(vg);
}
void drawEyes(NVGcontext* vg, float x, float y, float w, float h, float mx, float my, float t)
{
NVGpaint gloss, bg;
float ex = w *0.23f;
float ey = h * 0.5f;
float lx = x + ex;
float ly = y + ey;
float rx = x + w - ex;
float ry = y + ey;
float dx,dy,d;
float br = (ex < ey ? ex : ey) * 0.5f;
float blink = 1 - pow(sinf(t*0.5f),200)*0.8f;
bg = nvgLinearGradient(vg, x,y+h*0.5f,x+w*0.1f,y+h, nvgRGBA(0,0,0,32), nvgRGBA(0,0,0,16));
nvgBeginPath(vg);
nvgEllipse(vg, lx+3.0f,ly+16.0f, ex,ey);
nvgEllipse(vg, rx+3.0f,ry+16.0f, ex,ey);
nvgFillPaint(vg, bg);
nvgFill(vg);
bg = nvgLinearGradient(vg, x,y+h*0.25f,x+w*0.1f,y+h, nvgRGBA(220,220,220,255), nvgRGBA(128,128,128,255));
nvgBeginPath(vg);
nvgEllipse(vg, lx,ly, ex,ey);
nvgEllipse(vg, rx,ry, ex,ey);
nvgFillPaint(vg, bg);
nvgFill(vg);
dx = (mx - rx) / (ex * 10);
dy = (my - ry) / (ey * 10);
d = sqrtf(dx*dx+dy*dy);
if (d > 1.0f) {
dx /= d; dy /= d;
}
dx *= ex*0.4f;
dy *= ey*0.5f;
nvgBeginPath(vg);
nvgEllipse(vg, lx+dx,ly+dy+ey*0.25f*(1-blink), br,br*blink);
nvgFillColor(vg, nvgRGBA(32,32,32,255));
nvgFill(vg);
dx = (mx - rx) / (ex * 10);
dy = (my - ry) / (ey * 10);
d = sqrtf(dx*dx+dy*dy);
if (d > 1.0f) {
dx /= d; dy /= d;
}
dx *= ex*0.4f;
dy *= ey*0.5f;
nvgBeginPath(vg);
nvgEllipse(vg, rx+dx,ry+dy+ey*0.25f*(1-blink), br,br*blink);
nvgFillColor(vg, nvgRGBA(32,32,32,255));
nvgFill(vg);
gloss = nvgRadialGradient(vg, lx-ex*0.25f,ly-ey*0.5f, ex*0.1f,ex*0.75f, nvgRGBA(255,255,255,128), nvgRGBA(255,255,255,0));
nvgBeginPath(vg);
nvgEllipse(vg, lx,ly, ex,ey);
nvgFillPaint(vg, gloss);
nvgFill(vg);
gloss = nvgRadialGradient(vg, rx-ex*0.25f,ry-ey*0.5f, ex*0.1f,ex*0.75f, nvgRGBA(255,255,255,128), nvgRGBA(255,255,255,0));
nvgBeginPath(vg);
nvgEllipse(vg, rx,ry, ex,ey);
nvgFillPaint(vg, gloss);
nvgFill(vg);
}
void drawGraph(NVGcontext* vg, float x, float y, float w, float h, float t)
{
NVGpaint bg;
float samples[6];
float sx[6], sy[6];
float dx = w/5.0f;
int i;
samples[0] = (1+sinf(t*1.2345f+cosf(t*0.33457f)*0.44f))*0.5f;
samples[1] = (1+sinf(t*0.68363f+cosf(t*1.3f)*1.55f))*0.5f;
samples[2] = (1+sinf(t*1.1642f+cosf(t*0.33457)*1.24f))*0.5f;
samples[3] = (1+sinf(t*0.56345f+cosf(t*1.63f)*0.14f))*0.5f;
samples[4] = (1+sinf(t*1.6245f+cosf(t*0.254f)*0.3f))*0.5f;
samples[5] = (1+sinf(t*0.345f+cosf(t*0.03f)*0.6f))*0.5f;
for (i = 0; i < 6; i++) {
sx[i] = x+i*dx;
sy[i] = y+h*samples[i]*0.8f;
}
// Graph background
bg = nvgLinearGradient(vg, x,y,x,y+h, nvgRGBA(0,160,192,0), nvgRGBA(0,160,192,64));
nvgBeginPath(vg);
nvgMoveTo(vg, sx[0], sy[0]);
for (i = 1; i < 6; i++)
nvgBezierTo(vg, sx[i-1]+dx*0.5f,sy[i-1], sx[i]-dx*0.5f,sy[i], sx[i],sy[i]);
nvgLineTo(vg, x+w, y+h);
nvgLineTo(vg, x, y+h);
nvgFillPaint(vg, bg);
nvgFill(vg);
// Graph line
nvgBeginPath(vg);
nvgMoveTo(vg, sx[0], sy[0]+2);
for (i = 1; i < 6; i++)
nvgBezierTo(vg, sx[i-1]+dx*0.5f,sy[i-1]+2, sx[i]-dx*0.5f,sy[i]+2, sx[i],sy[i]+2);
nvgStrokeColor(vg, nvgRGBA(0,0,0,32));
nvgStrokeWidth(vg, 3.0f);
nvgStroke(vg);
nvgBeginPath(vg);
nvgMoveTo(vg, sx[0], sy[0]);
for (i = 1; i < 6; i++)
nvgBezierTo(vg, sx[i-1]+dx*0.5f,sy[i-1], sx[i]-dx*0.5f,sy[i], sx[i],sy[i]);
nvgStrokeColor(vg, nvgRGBA(0,160,192,255));
nvgStrokeWidth(vg, 3.0f);
nvgStroke(vg);
// Graph sample pos
for (i = 0; i < 6; i++) {
bg = nvgRadialGradient(vg, sx[i],sy[i]+2, 3.0f,8.0f, nvgRGBA(0,0,0,32), nvgRGBA(0,0,0,0));
nvgBeginPath(vg);
nvgRect(vg, sx[i]-10, sy[i]-10+2, 20,20);
nvgFillPaint(vg, bg);
nvgFill(vg);
}
nvgBeginPath(vg);
for (i = 0; i < 6; i++)
nvgCircle(vg, sx[i], sy[i], 4.0f);
nvgFillColor(vg, nvgRGBA(0,160,192,255));
nvgFill(vg);
nvgBeginPath(vg);
for (i = 0; i < 6; i++)
nvgCircle(vg, sx[i], sy[i], 2.0f);
nvgFillColor(vg, nvgRGBA(220,220,220,255));
nvgFill(vg);
nvgStrokeWidth(vg, 1.0f);
}
void drawSpinner(NVGcontext* vg, float cx, float cy, float r, float t)
{
float a0 = 0.0f + t*6;
float a1 = NVG_PI + t*6;
float r0 = r;
float r1 = r * 0.75f;
float ax,ay, bx,by;
NVGpaint paint;
nvgSave(vg);
nvgBeginPath(vg);
nvgArc(vg, cx,cy, r0, a0, a1, NVG_CW);
nvgArc(vg, cx,cy, r1, a1, a0, NVG_CCW);
nvgClosePath(vg);
ax = cx + cosf(a0) * (r0+r1)*0.5f;
ay = cy + sinf(a0) * (r0+r1)*0.5f;
bx = cx + cosf(a1) * (r0+r1)*0.5f;
by = cy + sinf(a1) * (r0+r1)*0.5f;
paint = nvgLinearGradient(vg, ax,ay, bx,by, nvgRGBA(0,0,0,0), nvgRGBA(0,0,0,128));
nvgFillPaint(vg, paint);
nvgFill(vg);
nvgRestore(vg);
}
void drawThumbnails(NVGcontext* vg, float x, float y, float w, float h, const int* images, int nimages, float t)
{
float cornerRadius = 3.0f;
NVGpaint shadowPaint, imgPaint, fadePaint;
float ix,iy,iw,ih;
float thumb = 60.0f;
float arry = 30.5f;
int imgw, imgh;
float stackh = (nimages/2) * (thumb+10) + 10;
int i;
float u = (1+cosf(t*0.5f))*0.5f;
float u2 = (1-cosf(t*0.2f))*0.5f;
float scrollh, dv;
nvgSave(vg);
// nvgClearState(vg);
// Drop shadow
shadowPaint = nvgBoxGradient(vg, x,y+4, w,h, cornerRadius*2, 20, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0));
nvgBeginPath(vg);
nvgRect(vg, x-10,y-10, w+20,h+30);
nvgRoundedRect(vg, x,y, w,h, cornerRadius);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, shadowPaint);
nvgFill(vg);
// Window
nvgBeginPath(vg);
nvgRoundedRect(vg, x,y, w,h, cornerRadius);
nvgMoveTo(vg, x-10,y+arry);
nvgLineTo(vg, x+1,y+arry-11);
nvgLineTo(vg, x+1,y+arry+11);
nvgFillColor(vg, nvgRGBA(200,200,200,255));
nvgFill(vg);
nvgSave(vg);
nvgScissor(vg, x,y,w,h);
nvgTranslate(vg, 0, -(stackh - h)*u);
dv = 1.0f / (float)(nimages-1);
for (i = 0; i < nimages; i++) {
float tx, ty, v, a;
tx = x+10;
ty = y+10;
tx += (i%2) * (thumb+10);
ty += (i/2) * (thumb+10);
nvgImageSize(vg, images[i], &imgw, &imgh);
if (imgw < imgh) {
iw = thumb;
ih = iw * (float)imgh/(float)imgw;
ix = 0;
iy = -(ih-thumb)*0.5f;
} else {
ih = thumb;
iw = ih * (float)imgw/(float)imgh;
ix = -(iw-thumb)*0.5f;
iy = 0;
}
v = i * dv;
a = clampf((u2-v) / dv, 0, 1);
if (a < 1.0f)
drawSpinner(vg, tx+thumb/2,ty+thumb/2, thumb*0.25f, t);
imgPaint = nvgImagePattern(vg, tx+ix, ty+iy, iw,ih, 0.0f/180.0f*NVG_PI, images[i], a);
nvgBeginPath(vg);
nvgRoundedRect(vg, tx,ty, thumb,thumb, 5);
nvgFillPaint(vg, imgPaint);
nvgFill(vg);
shadowPaint = nvgBoxGradient(vg, tx-1,ty, thumb+2,thumb+2, 5, 3, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0));
nvgBeginPath(vg);
nvgRect(vg, tx-5,ty-5, thumb+10,thumb+10);
nvgRoundedRect(vg, tx,ty, thumb,thumb, 6);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, shadowPaint);
nvgFill(vg);
nvgBeginPath(vg);
nvgRoundedRect(vg, tx+0.5f,ty+0.5f, thumb-1,thumb-1, 4-0.5f);
nvgStrokeWidth(vg,1.0f);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192));
nvgStroke(vg);
}
nvgRestore(vg);
// Hide fades
fadePaint = nvgLinearGradient(vg, x,y,x,y+6, nvgRGBA(200,200,200,255), nvgRGBA(200,200,200,0));
nvgBeginPath(vg);
nvgRect(vg, x+4,y,w-8,6);
nvgFillPaint(vg, fadePaint);
nvgFill(vg);
fadePaint = nvgLinearGradient(vg, x,y+h,x,y+h-6, nvgRGBA(200,200,200,255), nvgRGBA(200,200,200,0));
nvgBeginPath(vg);
nvgRect(vg, x+4,y+h-6,w-8,6);
nvgFillPaint(vg, fadePaint);
nvgFill(vg);
// Scroll bar
shadowPaint = nvgBoxGradient(vg, x+w-12+1,y+4+1, 8,h-8, 3,4, nvgRGBA(0,0,0,32), nvgRGBA(0,0,0,92));
nvgBeginPath(vg);
nvgRoundedRect(vg, x+w-12,y+4, 8,h-8, 3);
nvgFillPaint(vg, shadowPaint);
// nvgFillColor(vg, nvgRGBA(255,0,0,128));
nvgFill(vg);
scrollh = (h/stackh) * (h-8);
shadowPaint = nvgBoxGradient(vg, x+w-12-1,y+4+(h-8-scrollh)*u-1, 8,scrollh, 3,4, nvgRGBA(220,220,220,255), nvgRGBA(128,128,128,255));
nvgBeginPath(vg);
nvgRoundedRect(vg, x+w-12+1,y+4+1 + (h-8-scrollh)*u, 8-2,scrollh-2, 2);
nvgFillPaint(vg, shadowPaint);
// nvgFillColor(vg, nvgRGBA(0,0,0,128));
nvgFill(vg);
nvgRestore(vg);
}
void drawColorwheel(NVGcontext* vg, float x, float y, float w, float h, float t)
{
int i;
float r0, r1, ax,ay, bx,by, cx,cy, aeps, r;
float hue = sinf(t * 0.12f);
NVGpaint paint;
nvgSave(vg);
/* nvgBeginPath(vg);
nvgRect(vg, x,y,w,h);
nvgFillColor(vg, nvgRGBA(255,0,0,128));
nvgFill(vg);*/
cx = x + w*0.5f;
cy = y + h*0.5f;
r1 = (w < h ? w : h) * 0.5f - 5.0f;
r0 = r1 - 20.0f;
aeps = 0.5f / r1; // half a pixel arc length in radians (2pi cancels out).
for (i = 0; i < 6; i++) {
float a0 = (float)i / 6.0f * NVG_PI * 2.0f - aeps;
float a1 = (float)(i+1.0f) / 6.0f * NVG_PI * 2.0f + aeps;
nvgBeginPath(vg);
nvgArc(vg, cx,cy, r0, a0, a1, NVG_CW);
nvgArc(vg, cx,cy, r1, a1, a0, NVG_CCW);
nvgClosePath(vg);
ax = cx + cosf(a0) * (r0+r1)*0.5f;
ay = cy + sinf(a0) * (r0+r1)*0.5f;
bx = cx + cosf(a1) * (r0+r1)*0.5f;
by = cy + sinf(a1) * (r0+r1)*0.5f;
paint = nvgLinearGradient(vg, ax,ay, bx,by, nvgHSLA(a0/(NVG_PI*2),1.0f,0.55f,255), nvgHSLA(a1/(NVG_PI*2),1.0f,0.55f,255));
nvgFillPaint(vg, paint);
nvgFill(vg);
}
nvgBeginPath(vg);
nvgCircle(vg, cx,cy, r0-0.5f);
nvgCircle(vg, cx,cy, r1+0.5f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,64));
nvgStrokeWidth(vg, 1.0f);
nvgStroke(vg);
// Selector
nvgSave(vg);
nvgTranslate(vg, cx,cy);
nvgRotate(vg, hue*NVG_PI*2);
// Marker on
nvgStrokeWidth(vg, 2.0f);
nvgBeginPath(vg);
nvgRect(vg, r0-1,-3,r1-r0+2,6);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192));
nvgStroke(vg);
paint = nvgBoxGradient(vg, r0-3,-5,r1-r0+6,10, 2,4, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0));
nvgBeginPath(vg);
nvgRect(vg, r0-2-10,-4-10,r1-r0+4+20,8+20);
nvgRect(vg, r0-2,-4,r1-r0+4,8);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, paint);
nvgFill(vg);
// Center triangle
r = r0 - 6;
ax = cosf(120.0f/180.0f*NVG_PI) * r;
ay = sinf(120.0f/180.0f*NVG_PI) * r;
bx = cosf(-120.0f/180.0f*NVG_PI) * r;
by = sinf(-120.0f/180.0f*NVG_PI) * r;
nvgBeginPath(vg);
nvgMoveTo(vg, r,0);
nvgLineTo(vg, ax,ay);
nvgLineTo(vg, bx,by);
nvgClosePath(vg);
paint = nvgLinearGradient(vg, r,0, ax,ay, nvgHSLA(hue,1.0f,0.5f,255), nvgRGBA(255,255,255,255));
nvgFillPaint(vg, paint);
nvgFill(vg);
paint = nvgLinearGradient(vg, (r+ax)*0.5f,(0+ay)*0.5f, bx,by, nvgRGBA(0,0,0,0), nvgRGBA(0,0,0,255));
nvgFillPaint(vg, paint);
nvgFill(vg);
nvgStrokeColor(vg, nvgRGBA(0,0,0,64));
nvgStroke(vg);
// Select circle on triangle
ax = cosf(120.0f/180.0f*NVG_PI) * r*0.3f;
ay = sinf(120.0f/180.0f*NVG_PI) * r*0.4f;
nvgStrokeWidth(vg, 2.0f);
nvgBeginPath(vg);
nvgCircle(vg, ax,ay,5);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192));
nvgStroke(vg);
paint = nvgRadialGradient(vg, ax,ay, 7,9, nvgRGBA(0,0,0,64), nvgRGBA(0,0,0,0));
nvgBeginPath(vg);
nvgRect(vg, ax-20,ay-20,40,40);
nvgCircle(vg, ax,ay,7);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, paint);
nvgFill(vg);
nvgRestore(vg);
nvgRestore(vg);
}
void drawLines(NVGcontext* vg, float x, float y, float w, float h, float t)
{
int i, j;
float pad = 5.0f, s = w/9.0f - pad*2;
float pts[4*2], fx, fy;
int joins[3] = {NVG_MITER, NVG_ROUND, NVG_BEVEL};
int caps[3] = {NVG_BUTT, NVG_ROUND, NVG_SQUARE};
NVG_NOTUSED(h);
nvgSave(vg);
pts[0] = -s*0.25f + cosf(t*0.3f) * s*0.5f;
pts[1] = sinf(t*0.3f) * s*0.5f;
pts[2] = -s*0.25;
pts[3] = 0;
pts[4] = s*0.25f;
pts[5] = 0;
pts[6] = s*0.25f + cosf(-t*0.3f) * s*0.5f;
pts[7] = sinf(-t*0.3f) * s*0.5f;
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
fx = x + s*0.5f + (i*3+j)/9.0f*w + pad;
fy = y - s*0.5f + pad;
nvgLineCap(vg, caps[i]);
nvgLineJoin(vg, joins[j]);
nvgStrokeWidth(vg, s*0.3f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,160));
nvgBeginPath(vg);
nvgMoveTo(vg, fx+pts[0], fy+pts[1]);
nvgLineTo(vg, fx+pts[2], fy+pts[3]);
nvgLineTo(vg, fx+pts[4], fy+pts[5]);
nvgLineTo(vg, fx+pts[6], fy+pts[7]);
nvgStroke(vg);
nvgLineCap(vg, NVG_BUTT);
nvgLineJoin(vg, NVG_BEVEL);
nvgStrokeWidth(vg, 1.0f);
nvgStrokeColor(vg, nvgRGBA(0,192,255,255));
nvgBeginPath(vg);
nvgMoveTo(vg, fx+pts[0], fy+pts[1]);
nvgLineTo(vg, fx+pts[2], fy+pts[3]);
nvgLineTo(vg, fx+pts[4], fy+pts[5]);
nvgLineTo(vg, fx+pts[6], fy+pts[7]);
nvgStroke(vg);
}
}
nvgRestore(vg);
}
int loadDemoData(NVGcontext* vg, DemoData* data)
{
int i;
if (vg == NULL)
return -1;
for (i = 0; i < 12; i++) {
char file[128];
snprintf(file, 128, "app0:example/images/image%d.jpg", i+1);
data->images[i] = nvgCreateImage(vg, file, 0);
if (data->images[i] == 0) {
printf("Could not load %s.\n", file);
return -1;
}
}
data->fontIcons = nvgCreateFont(vg, "icons", "app0:example/entypo.ttf");
if (data->fontIcons == -1) {
printf("Could not add font icons.\n");
return -1;
}
data->fontNormal = nvgCreateFont(vg, "sans", "app0:example/Roboto-Regular.ttf");
if (data->fontNormal == -1) {
printf("Could not add font italic.\n");
return -1;
}
data->fontBold = nvgCreateFont(vg, "sans-bold", "app0:example/Roboto-Bold.ttf");
if (data->fontBold == -1) {
printf("Could not add font bold.\n");
return -1;
}
data->fontEmoji = nvgCreateFont(vg, "emoji", "app0:example/NotoEmoji-Regular.ttf");
if (data->fontEmoji == -1) {
printf("Could not add font emoji.\n");
return -1;
}
nvgAddFallbackFontId(vg, data->fontNormal, data->fontEmoji);
nvgAddFallbackFontId(vg, data->fontBold, data->fontEmoji);
return 0;
}
void freeDemoData(NVGcontext* vg, DemoData* data)
{
int i;
if (vg == NULL)
return;
for (i = 0; i < 12; i++)
nvgDeleteImage(vg, data->images[i]);
}
void drawParagraph(NVGcontext* vg, float x, float y, float width, float height, float mx, float my)
{
NVGtextRow rows[3];
NVGglyphPosition glyphs[100];
const char* text = "This is longer chunk of text.\n \n Would have used lorem ipsum but she was busy jumping over the lazy dog with the fox and all the men who came to the aid of the party.🎉";
const char* start;
const char* end;
int nrows, i, nglyphs, j, lnum = 0;
float lineh;
float caretx, px;
float bounds[4];
float a;
const char* hoverText = "Hover your mouse over the text to see calculated caret position.";
float gx,gy;
int gutter = 0;
const char* boxText = "Testing\nsome multiline\ntext.";
NVG_NOTUSED(height);
nvgSave(vg);
nvgFontSize(vg, 15.0f);
nvgFontFace(vg, "sans");
nvgTextAlign(vg, NVG_ALIGN_LEFT|NVG_ALIGN_TOP);
nvgTextMetrics(vg, NULL, NULL, &lineh);
// The text break API can be used to fill a large buffer of rows,
// or to iterate over the text just few lines (or just one) at a time.
// The "next" variable of the last returned item tells where to continue.
start = text;
end = text + strlen(text);
while ((nrows = nvgTextBreakLines(vg, start, end, width, rows, 3))) {
for (i = 0; i < nrows; i++) {
NVGtextRow* row = &rows[i];
int hit = mx > x && mx < (x+width) && my >= y && my < (y+lineh);
nvgBeginPath(vg);
nvgFillColor(vg, nvgRGBA(255,255,255,hit?64:16));
nvgRect(vg, x + row->minx, y, row->maxx - row->minx, lineh);
nvgFill(vg);
nvgFillColor(vg, nvgRGBA(255,255,255,255));
nvgText(vg, x, y, row->start, row->end);
if (hit) {
caretx = (mx < x+row->width/2) ? x : x+row->width;
px = x;
nglyphs = nvgTextGlyphPositions(vg, x, y, row->start, row->end, glyphs, 100);
for (j = 0; j < nglyphs; j++) {
float x0 = glyphs[j].x;
float x1 = (j+1 < nglyphs) ? glyphs[j+1].x : x+row->width;
float gx = x0 * 0.3f + x1 * 0.7f;
if (mx >= px && mx < gx)
caretx = glyphs[j].x;
px = gx;
}
nvgBeginPath(vg);
nvgFillColor(vg, nvgRGBA(255,192,0,255));
nvgRect(vg, caretx, y, 1, lineh);
nvgFill(vg);
gutter = lnum+1;
gx = x - 10;
gy = y + lineh/2;
}
lnum++;
y += lineh;
}
// Keep going...
start = rows[nrows-1].next;
}
if (gutter) {
char txt[16];
snprintf(txt, sizeof(txt), "%d", gutter);
nvgFontSize(vg, 12.0f);
nvgTextAlign(vg, NVG_ALIGN_RIGHT|NVG_ALIGN_MIDDLE);
nvgTextBounds(vg, gx,gy, txt, NULL, bounds);
nvgBeginPath(vg);
nvgFillColor(vg, nvgRGBA(255,192,0,255));
nvgRoundedRect(vg, (int)bounds[0]-4,(int)bounds[1]-2, (int)(bounds[2]-bounds[0])+8, (int)(bounds[3]-bounds[1])+4, ((int)(bounds[3]-bounds[1])+4)/2-1);
nvgFill(vg);
nvgFillColor(vg, nvgRGBA(32,32,32,255));
nvgText(vg, gx,gy, txt, NULL);
}
y += 20.0f;
nvgFontSize(vg, 11.0f);
nvgTextAlign(vg, NVG_ALIGN_LEFT|NVG_ALIGN_TOP);
nvgTextLineHeight(vg, 1.2f);
nvgTextBoxBounds(vg, x,y, 150, hoverText, NULL, bounds);
// Fade the tooltip out when close to it.
gx = clampf(mx, bounds[0], bounds[2]) - mx;
gy = clampf(my, bounds[1], bounds[3]) - my;
a = sqrtf(gx*gx + gy*gy) / 30.0f;
a = clampf(a, 0, 1);
nvgGlobalAlpha(vg, a);
nvgBeginPath(vg);
nvgFillColor(vg, nvgRGBA(220,220,220,255));
nvgRoundedRect(vg, bounds[0]-2,bounds[1]-2, (int)(bounds[2]-bounds[0])+4, (int)(bounds[3]-bounds[1])+4, 3);
px = (int)((bounds[2]+bounds[0])/2);
nvgMoveTo(vg, px,bounds[1] - 10);
nvgLineTo(vg, px+7,bounds[1]+1);
nvgLineTo(vg, px-7,bounds[1]+1);
nvgFill(vg);
nvgFillColor(vg, nvgRGBA(0,0,0,220));
nvgTextBox(vg, x,y, 150, hoverText, NULL);
nvgRestore(vg);
}
void drawWidths(NVGcontext* vg, float x, float y, float width)
{
int i;
nvgSave(vg);
nvgStrokeColor(vg, nvgRGBA(0,0,0,255));
for (i = 0; i < 20; i++) {
float w = (i+0.5f)*0.1f;
nvgStrokeWidth(vg, w);
nvgBeginPath(vg);
nvgMoveTo(vg, x,y);
nvgLineTo(vg, x+width,y+width*0.3f);
nvgStroke(vg);
y += 10;
}
nvgRestore(vg);
}
void drawCaps(NVGcontext* vg, float x, float y, float width)
{
int i;
int caps[3] = {NVG_BUTT, NVG_ROUND, NVG_SQUARE};
float lineWidth = 8.0f;
nvgSave(vg);
nvgBeginPath(vg);
nvgRect(vg, x-lineWidth/2, y, width+lineWidth, 40);
nvgFillColor(vg, nvgRGBA(255,255,255,32));
nvgFill(vg);
nvgBeginPath(vg);
nvgRect(vg, x, y, width, 40);
nvgFillColor(vg, nvgRGBA(255,255,255,32));
nvgFill(vg);
nvgStrokeWidth(vg, lineWidth);
for (i = 0; i < 3; i++) {
nvgLineCap(vg, caps[i]);
nvgStrokeColor(vg, nvgRGBA(0,0,0,255));
nvgBeginPath(vg);
nvgMoveTo(vg, x, y + i*10 + 5);
nvgLineTo(vg, x+width, y + i*10 + 5);
nvgStroke(vg);
}
nvgRestore(vg);
}
void drawScissor(NVGcontext* vg, float x, float y, float t)
{
nvgSave(vg);
// Draw first rect and set scissor to it's area.
nvgTranslate(vg, x, y);
nvgRotate(vg, nvgDegToRad(5));
nvgBeginPath(vg);
nvgRect(vg, -20,-20,60,40);
nvgFillColor(vg, nvgRGBA(255,0,0,255));
nvgFill(vg);
nvgScissor(vg, -20,-20,60,40);
// Draw second rectangle with offset and rotation.
nvgTranslate(vg, 40,0);
nvgRotate(vg, t);
// Draw the intended second rectangle without any scissoring.
nvgSave(vg);
nvgResetScissor(vg);
nvgBeginPath(vg);
nvgRect(vg, -20,-10,60,30);
nvgFillColor(vg, nvgRGBA(255,128,0,64));
nvgFill(vg);
nvgRestore(vg);
// Draw second rectangle with combined scissoring.
nvgIntersectScissor(vg, -20,-10,60,30);
nvgBeginPath(vg);
nvgRect(vg, -20,-10,60,30);
nvgFillColor(vg, nvgRGBA(255,128,0,255));
nvgFill(vg);
nvgRestore(vg);
}
void drawMouse(NVGcontext* vg, float x, float y)
{
nvgBeginPath(vg);
nvgMoveTo(vg, x, y);
nvgLineTo(vg, x, y+26);
nvgLineTo(vg, x+8, y+21);
nvgLineTo(vg, x+18, y+20);
nvgClosePath(vg);
nvgFillColor(vg, nvgRGBA(0,0,0,196));
nvgFill(vg);
nvgStrokeColor(vg, nvgRGBA(255,255,255,196));
nvgStroke(vg);
}
void renderDemo(NVGcontext* vg, float mx, float my, float width, float height,
float t, int blowup, DemoData* data)
{
float x,y,popy;
drawEyes(vg, width - 250, 50, 150, 100, mx, my, t);
drawParagraph(vg, width - 405, 50, 150, 100, mx, my);
drawGraph(vg, 0, height/2, width, height/2, t);
drawColorwheel(vg, width - 300, height - 300, 250.0f, 250.0f, t);
// Line joints
drawLines(vg, 120, height-50, 600, 50, t);
// Line caps
drawWidths(vg, 10, 50, 30);
// Line caps
drawCaps(vg, 10, 300, 30);
drawScissor(vg, 50, height-80, t);
nvgSave(vg);
if (blowup) {
nvgRotate(vg, sinf(t*0.3f)*5.0f/180.0f*NVG_PI);
nvgScale(vg, 2.0f, 2.0f);
}
// Widgets
drawWindow(vg, "Widgets `n Stuff", 50, 50, 300, 400);
x = 60; y = 95;
drawSearchBox(vg, "Search", x,y,280,25);
y += 40;
drawDropDown(vg, "Effects", x,y,280,28);
popy = y + 14;
y += 45;
// Form
drawLabel(vg, "Login", x,y, 280,20);
y += 25;
drawEditBox(vg, "Email", x,y, 280,28);
y += 35;
drawEditBox(vg, "Password", x,y, 280,28);
y += 38;
drawCheckBox(vg, "Remember me", x,y, 140,28);
drawButton(vg, ICON_LOGIN, "Sign in", x+138, y, 140, 28, nvgRGBA(0,96,128,255));
y += 45;
// Slider
drawLabel(vg, "Diameter", x,y, 280,20);
y += 25;
drawEditBoxNum(vg, "123.00", "px", x+180,y, 100,28);
drawSlider(vg, 0.4f, x,y, 170,28);
y += 55;
drawButton(vg, ICON_TRASH, "Delete", x, y, 160, 28, nvgRGBA(128,16,8,255));
drawButton(vg, 0, "Cancel", x+170, y, 110, 28, nvgRGBA(0,0,0,0));
// Thumbnails box
drawThumbnails(vg, 365, popy-30, 160, 300, data->images, 12, t);
drawMouse(vg, mx, my);
nvgRestore(vg);
}
static int mini(int a, int b) { return a < b ? a : b; }
static void unpremultiplyAlpha(unsigned char* image, int w, int h, int stride)
{
int x,y;
// Unpremultiply
for (y = 0; y < h; y++) {
unsigned char *row = &image[y*stride];
for (x = 0; x < w; x++) {
int r = row[0], g = row[1], b = row[2], a = row[3];
if (a != 0) {
row[0] = (int)mini(r*255/a, 255);
row[1] = (int)mini(g*255/a, 255);
row[2] = (int)mini(b*255/a, 255);
}
row += 4;
}
}
// Defringe
for (y = 0; y < h; y++) {
unsigned char *row = &image[y*stride];
for (x = 0; x < w; x++) {
int r = 0, g = 0, b = 0, a = row[3], n = 0;
if (a == 0) {
if (x-1 > 0 && row[-1] != 0) {
r += row[-4];
g += row[-3];
b += row[-2];
n++;
}
if (x+1 < w && row[7] != 0) {
r += row[4];
g += row[5];
b += row[6];
n++;
}
if (y-1 > 0 && row[-stride+3] != 0) {
r += row[-stride];
g += row[-stride+1];
b += row[-stride+2];
n++;
}
if (y+1 < h && row[stride+3] != 0) {
r += row[stride];
g += row[stride+1];
b += row[stride+2];
n++;
}
if (n > 0) {
row[0] = r/n;
row[1] = g/n;
row[2] = b/n;
}
}
row += 4;
}
}
}
static void setAlpha(unsigned char* image, int w, int h, int stride, unsigned char a)
{
int x, y;
for (y = 0; y < h; y++) {
unsigned char* row = &image[y*stride];
for (x = 0; x < w; x++)
row[x*4+3] = a;
}
}
static void flipHorizontal(unsigned char* image, int w, int h, int stride)
{
int i = 0, j = h-1, k;
while (i < j) {
unsigned char* ri = &image[i * stride];
unsigned char* rj = &image[j * stride];
for (k = 0; k < w*4; k++) {
unsigned char t = ri[k];
ri[k] = rj[k];
rj[k] = t;
}
i++;
j--;
}
}
// Defined in nanovg_gxm_utils.h
void *gxmReadPixels();
void saveScreenShot(int w, int h, int premult, const char* name)
{
unsigned char* image = (unsigned char*)malloc(w*h*4);
if (image == NULL)
return;
void *pixels = gxmReadPixels();
if (pixels == NULL)
{
free(image);
return;
}
memcpy(image, pixels, w*h*4);
if (premult)
unpremultiplyAlpha(image, w, h, w*4);
else
setAlpha(image, w, h, w*4, 255);
stbi_write_png(name, w, h, 4, image, w*4);
free(image);
}
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/demo.h | C/C++ Header | #ifndef DEMO_H
#define DEMO_H
#include "nanovg.h"
#ifdef __cplusplus
extern "C" {
#endif
struct DemoData {
int fontNormal, fontBold, fontIcons, fontEmoji;
int images[12];
};
typedef struct DemoData DemoData;
int loadDemoData(NVGcontext* vg, DemoData* data);
void freeDemoData(NVGcontext* vg, DemoData* data);
void renderDemo(NVGcontext* vg, float mx, float my, float width, float height, float t, int blowup, DemoData* data);
void saveScreenShot(int w, int h, int premult, const char* name);
#ifdef __cplusplus
}
#endif
#endif // DEMO_H
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/example_fbo.c | C | //
// Copyright (c) 2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#include <stdio.h>
#ifdef NANOVG_GLEW
# include <GL/glew.h>
#endif
#ifdef __APPLE__
# define GLFW_INCLUDE_GLCOREARB
#endif
#include <GLFW/glfw3.h>
#include "nanovg.h"
#define NANOVG_GL3_IMPLEMENTATION
#include "nanovg_gl.h"
#include "nanovg_gl_utils.h"
#include "perf.h"
void renderPattern(NVGcontext* vg, NVGLUframebuffer* fb, float t, float pxRatio)
{
int winWidth, winHeight;
int fboWidth, fboHeight;
int pw, ph, x, y;
float s = 20.0f;
float sr = (cosf(t)+1)*0.5f;
float r = s * 0.6f * (0.2f + 0.8f * sr);
if (fb == NULL) return;
nvgImageSize(vg, fb->image, &fboWidth, &fboHeight);
winWidth = (int)(fboWidth / pxRatio);
winHeight = (int)(fboHeight / pxRatio);
// Draw some stuff to an FBO as a test
nvgluBindFramebuffer(fb);
glViewport(0, 0, fboWidth, fboHeight);
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
nvgBeginFrame(vg, winWidth, winHeight, pxRatio);
pw = (int)ceilf(winWidth / s);
ph = (int)ceilf(winHeight / s);
nvgBeginPath(vg);
for (y = 0; y < ph; y++) {
for (x = 0; x < pw; x++) {
float cx = (x+0.5f) * s;
float cy = (y+0.5f) * s;
nvgCircle(vg, cx,cy, r);
}
}
nvgFillColor(vg, nvgRGBA(220,160,0,200));
nvgFill(vg);
nvgEndFrame(vg);
nvgluBindFramebuffer(NULL);
}
int loadFonts(NVGcontext* vg)
{
int font;
font = nvgCreateFont(vg, "sans", "../example/Roboto-Regular.ttf");
if (font == -1) {
printf("Could not add font regular.\n");
return -1;
}
font = nvgCreateFont(vg, "sans-bold", "../example/Roboto-Bold.ttf");
if (font == -1) {
printf("Could not add font bold.\n");
return -1;
}
return 0;
}
void errorcb(int error, const char* desc)
{
printf("GLFW error %d: %s\n", error, desc);
}
static void key(GLFWwindow* window, int key, int scancode, int action, int mods)
{
NVG_NOTUSED(scancode);
NVG_NOTUSED(mods);
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GL_TRUE);
}
int main()
{
GLFWwindow* window;
NVGcontext* vg = NULL;
GPUtimer gpuTimer;
PerfGraph fps, cpuGraph, gpuGraph;
double prevt = 0, cpuTime = 0;
NVGLUframebuffer* fb = NULL;
int winWidth, winHeight;
int fbWidth, fbHeight;
float pxRatio;
if (!glfwInit()) {
printf("Failed to init GLFW.");
return -1;
}
initGraph(&fps, GRAPH_RENDER_FPS, "Frame Time");
initGraph(&cpuGraph, GRAPH_RENDER_MS, "CPU Time");
initGraph(&gpuGraph, GRAPH_RENDER_MS, "GPU Time");
glfwSetErrorCallback(errorcb);
#ifndef _WIN32 // don't require this on win32, and works with more cards
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#endif
glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, 1);
#ifdef DEMO_MSAA
glfwWindowHint(GLFW_SAMPLES, 4);
#endif
window = glfwCreateWindow(1000, 600, "NanoVG", NULL, NULL);
// window = glfwCreateWindow(1000, 600, "NanoVG", glfwGetPrimaryMonitor(), NULL);
if (!window) {
glfwTerminate();
return -1;
}
glfwSetKeyCallback(window, key);
glfwMakeContextCurrent(window);
#ifdef NANOVG_GLEW
glewExperimental = GL_TRUE;
if(glewInit() != GLEW_OK) {
printf("Could not init glew.\n");
return -1;
}
// GLEW generates GL error because it calls glGetString(GL_EXTENSIONS), we'll consume it here.
glGetError();
#endif
#ifdef DEMO_MSAA
vg = nvgCreateGL3(NVG_STENCIL_STROKES | NVG_DEBUG);
#else
vg = nvgCreateGL3(NVG_ANTIALIAS | NVG_STENCIL_STROKES | NVG_DEBUG);
#endif
if (vg == NULL) {
printf("Could not init nanovg.\n");
return -1;
}
// Create hi-dpi FBO for hi-dpi screens.
glfwGetWindowSize(window, &winWidth, &winHeight);
glfwGetFramebufferSize(window, &fbWidth, &fbHeight);
// Calculate pixel ration for hi-dpi devices.
pxRatio = (float)fbWidth / (float)winWidth;
// The image pattern is tiled, set repeat on x and y.
fb = nvgluCreateFramebuffer(vg, (int)(100*pxRatio), (int)(100*pxRatio), NVG_IMAGE_REPEATX | NVG_IMAGE_REPEATY);
if (fb == NULL) {
printf("Could not create FBO.\n");
return -1;
}
if (loadFonts(vg) == -1) {
printf("Could not load fonts\n");
return -1;
}
glfwSwapInterval(0);
initGPUTimer(&gpuTimer);
glfwSetTime(0);
prevt = glfwGetTime();
while (!glfwWindowShouldClose(window))
{
double mx, my, t, dt;
float gpuTimes[3];
int i, n;
t = glfwGetTime();
dt = t - prevt;
prevt = t;
startGPUTimer(&gpuTimer);
glfwGetCursorPos(window, &mx, &my);
glfwGetWindowSize(window, &winWidth, &winHeight);
glfwGetFramebufferSize(window, &fbWidth, &fbHeight);
// Calculate pixel ration for hi-dpi devices.
pxRatio = (float)fbWidth / (float)winWidth;
renderPattern(vg, fb, t, pxRatio);
// Update and render
glViewport(0, 0, fbWidth, fbHeight);
glClearColor(0.3f, 0.3f, 0.32f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
nvgBeginFrame(vg, winWidth, winHeight, pxRatio);
// Use the FBO as image pattern.
if (fb != NULL) {
NVGpaint img = nvgImagePattern(vg, 0, 0, 100, 100, 0, fb->image, 1.0f);
nvgSave(vg);
for (i = 0; i < 20; i++) {
nvgBeginPath(vg);
nvgRect(vg, 10 + i*30,10, 10, winHeight-20);
nvgFillColor(vg, nvgHSLA(i/19.0f, 0.5f, 0.5f, 255));
nvgFill(vg);
}
nvgBeginPath(vg);
nvgRoundedRect(vg, 140 + sinf(t*1.3f)*100, 140 + cosf(t*1.71244f)*100, 250, 250, 20);
nvgFillPaint(vg, img);
nvgFill(vg);
nvgStrokeColor(vg, nvgRGBA(220,160,0,255));
nvgStrokeWidth(vg, 3.0f);
nvgStroke(vg);
nvgRestore(vg);
}
renderGraph(vg, 5,5, &fps);
renderGraph(vg, 5+200+5,5, &cpuGraph);
if (gpuTimer.supported)
renderGraph(vg, 5+200+5+200+5,5, &gpuGraph);
nvgEndFrame(vg);
// Measure the CPU time taken excluding swap buffers (as the swap may wait for GPU)
cpuTime = glfwGetTime() - t;
updateGraph(&fps, dt);
updateGraph(&cpuGraph, cpuTime);
// We may get multiple results.
n = stopGPUTimer(&gpuTimer, gpuTimes, 3);
for (i = 0; i < n; i++)
updateGraph(&gpuGraph, gpuTimes[i]);
glfwSwapBuffers(window);
glfwPollEvents();
}
nvgluDeleteFramebuffer(fb);
nvgDeleteGL3(vg);
printf("Average Frame Time: %.2f ms\n", getGraphAverage(&fps) * 1000.0f);
printf(" CPU Time: %.2f ms\n", getGraphAverage(&cpuGraph) * 1000.0f);
printf(" GPU Time: %.2f ms\n", getGraphAverage(&gpuGraph) * 1000.0f);
glfwTerminate();
return 0;
}
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/example_gl2.c | C | //
// Copyright (c) 2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#include <stdio.h>
#ifdef NANOVG_GLEW
# include <GL/glew.h>
#endif
#define GLFW_INCLUDE_GLEXT
#include <GLFW/glfw3.h>
#include "nanovg.h"
#define NANOVG_GL2_IMPLEMENTATION
#include "nanovg_gl.h"
#include "demo.h"
#include "perf.h"
void errorcb(int error, const char* desc)
{
printf("GLFW error %d: %s\n", error, desc);
}
int blowup = 0;
int screenshot = 0;
int premult = 0;
static void key(GLFWwindow* window, int key, int scancode, int action, int mods)
{
NVG_NOTUSED(scancode);
NVG_NOTUSED(mods);
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GL_TRUE);
if (key == GLFW_KEY_SPACE && action == GLFW_PRESS)
blowup = !blowup;
if (key == GLFW_KEY_S && action == GLFW_PRESS)
screenshot = 1;
if (key == GLFW_KEY_P && action == GLFW_PRESS)
premult = !premult;
}
int main()
{
GLFWwindow* window;
DemoData data;
NVGcontext* vg = NULL;
PerfGraph fps;
double prevt = 0;
if (!glfwInit()) {
printf("Failed to init GLFW.");
return -1;
}
initGraph(&fps, GRAPH_RENDER_FPS, "Frame Time");
glfwSetErrorCallback(errorcb);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
#ifdef DEMO_MSAA
glfwWindowHint(GLFW_SAMPLES, 4);
#endif
window = glfwCreateWindow(1000, 600, "NanoVG", NULL, NULL);
// window = glfwCreateWindow(1000, 600, "NanoVG", glfwGetPrimaryMonitor(), NULL);
if (!window) {
glfwTerminate();
return -1;
}
glfwSetKeyCallback(window, key);
glfwMakeContextCurrent(window);
#ifdef NANOVG_GLEW
if(glewInit() != GLEW_OK) {
printf("Could not init glew.\n");
return -1;
}
#endif
#ifdef DEMO_MSAA
vg = nvgCreateGL2(NVG_STENCIL_STROKES | NVG_DEBUG);
#else
vg = nvgCreateGL2(NVG_ANTIALIAS | NVG_STENCIL_STROKES | NVG_DEBUG);
#endif
if (vg == NULL) {
printf("Could not init nanovg.\n");
return -1;
}
if (loadDemoData(vg, &data) == -1)
return -1;
glfwSwapInterval(0);
glfwSetTime(0);
prevt = glfwGetTime();
while (!glfwWindowShouldClose(window))
{
double mx, my, t, dt;
int winWidth, winHeight;
int fbWidth, fbHeight;
float pxRatio;
t = glfwGetTime();
dt = t - prevt;
prevt = t;
updateGraph(&fps, dt);
glfwGetCursorPos(window, &mx, &my);
glfwGetWindowSize(window, &winWidth, &winHeight);
glfwGetFramebufferSize(window, &fbWidth, &fbHeight);
// Calculate pixel ration for hi-dpi devices.
pxRatio = (float)fbWidth / (float)winWidth;
// Update and render
glViewport(0, 0, fbWidth, fbHeight);
if (premult)
glClearColor(0,0,0,0);
else
glClearColor(0.3f, 0.3f, 0.32f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
nvgBeginFrame(vg, winWidth, winHeight, pxRatio);
renderDemo(vg, mx,my, winWidth,winHeight, t, blowup, &data);
renderGraph(vg, 5,5, &fps);
nvgEndFrame(vg);
if (screenshot) {
screenshot = 0;
saveScreenShot(fbWidth, fbHeight, premult, "dump.png");
}
glfwSwapBuffers(window);
glfwPollEvents();
}
freeDemoData(vg, &data);
nvgDeleteGL2(vg);
glfwTerminate();
return 0;
}
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/example_gl3.c | C | //
// Copyright (c) 2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#include <stdio.h>
#ifdef NANOVG_GLEW
# include <GL/glew.h>
#endif
#ifdef __APPLE__
# define GLFW_INCLUDE_GLCOREARB
#endif
#define GLFW_INCLUDE_GLEXT
#include <GLFW/glfw3.h>
#include "nanovg.h"
#define NANOVG_GL3_IMPLEMENTATION
#include "nanovg_gl.h"
#include "demo.h"
#include "perf.h"
void errorcb(int error, const char* desc)
{
printf("GLFW error %d: %s\n", error, desc);
}
int blowup = 0;
int screenshot = 0;
int premult = 0;
static void key(GLFWwindow* window, int key, int scancode, int action, int mods)
{
NVG_NOTUSED(scancode);
NVG_NOTUSED(mods);
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GL_TRUE);
if (key == GLFW_KEY_SPACE && action == GLFW_PRESS)
blowup = !blowup;
if (key == GLFW_KEY_S && action == GLFW_PRESS)
screenshot = 1;
if (key == GLFW_KEY_P && action == GLFW_PRESS)
premult = !premult;
}
int main()
{
GLFWwindow* window;
DemoData data;
NVGcontext* vg = NULL;
GPUtimer gpuTimer;
PerfGraph fps, cpuGraph, gpuGraph;
double prevt = 0, cpuTime = 0;
if (!glfwInit()) {
printf("Failed to init GLFW.");
return -1;
}
initGraph(&fps, GRAPH_RENDER_FPS, "Frame Time");
initGraph(&cpuGraph, GRAPH_RENDER_MS, "CPU Time");
initGraph(&gpuGraph, GRAPH_RENDER_MS, "GPU Time");
glfwSetErrorCallback(errorcb);
#ifndef _WIN32 // don't require this on win32, and works with more cards
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#endif
glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, 1);
#ifdef DEMO_MSAA
glfwWindowHint(GLFW_SAMPLES, 4);
#endif
window = glfwCreateWindow(1000, 600, "NanoVG", NULL, NULL);
// window = glfwCreateWindow(1000, 600, "NanoVG", glfwGetPrimaryMonitor(), NULL);
if (!window) {
glfwTerminate();
return -1;
}
glfwSetKeyCallback(window, key);
glfwMakeContextCurrent(window);
#ifdef NANOVG_GLEW
glewExperimental = GL_TRUE;
if(glewInit() != GLEW_OK) {
printf("Could not init glew.\n");
return -1;
}
// GLEW generates GL error because it calls glGetString(GL_EXTENSIONS), we'll consume it here.
glGetError();
#endif
#ifdef DEMO_MSAA
vg = nvgCreateGL3(NVG_STENCIL_STROKES | NVG_DEBUG);
#else
vg = nvgCreateGL3(NVG_ANTIALIAS | NVG_STENCIL_STROKES | NVG_DEBUG);
#endif
if (vg == NULL) {
printf("Could not init nanovg.\n");
return -1;
}
if (loadDemoData(vg, &data) == -1)
return -1;
glfwSwapInterval(0);
initGPUTimer(&gpuTimer);
glfwSetTime(0);
prevt = glfwGetTime();
while (!glfwWindowShouldClose(window))
{
double mx, my, t, dt;
int winWidth, winHeight;
int fbWidth, fbHeight;
float pxRatio;
float gpuTimes[3];
int i, n;
t = glfwGetTime();
dt = t - prevt;
prevt = t;
startGPUTimer(&gpuTimer);
glfwGetCursorPos(window, &mx, &my);
glfwGetWindowSize(window, &winWidth, &winHeight);
glfwGetFramebufferSize(window, &fbWidth, &fbHeight);
// Calculate pixel ration for hi-dpi devices.
pxRatio = (float)fbWidth / (float)winWidth;
// Update and render
glViewport(0, 0, fbWidth, fbHeight);
if (premult)
glClearColor(0,0,0,0);
else
glClearColor(0.3f, 0.3f, 0.32f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
nvgBeginFrame(vg, winWidth, winHeight, pxRatio);
renderDemo(vg, mx,my, winWidth,winHeight, t, blowup, &data);
renderGraph(vg, 5,5, &fps);
renderGraph(vg, 5+200+5,5, &cpuGraph);
if (gpuTimer.supported)
renderGraph(vg, 5+200+5+200+5,5, &gpuGraph);
nvgEndFrame(vg);
// Measure the CPU time taken excluding swap buffers (as the swap may wait for GPU)
cpuTime = glfwGetTime() - t;
updateGraph(&fps, dt);
updateGraph(&cpuGraph, cpuTime);
// We may get multiple results.
n = stopGPUTimer(&gpuTimer, gpuTimes, 3);
for (i = 0; i < n; i++)
updateGraph(&gpuGraph, gpuTimes[i]);
if (screenshot) {
screenshot = 0;
saveScreenShot(fbWidth, fbHeight, premult, "dump.png");
}
glfwSwapBuffers(window);
glfwPollEvents();
}
freeDemoData(vg, &data);
nvgDeleteGL3(vg);
printf("Average Frame Time: %.2f ms\n", getGraphAverage(&fps) * 1000.0f);
printf(" CPU Time: %.2f ms\n", getGraphAverage(&cpuGraph) * 1000.0f);
printf(" GPU Time: %.2f ms\n", getGraphAverage(&gpuGraph) * 1000.0f);
glfwTerminate();
return 0;
}
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/example_gles2.c | C | //
// Copyright (c) 2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#include <stdio.h>
#define GLFW_INCLUDE_ES2
#define GLFW_INCLUDE_GLEXT
#include <GLFW/glfw3.h>
#include "nanovg.h"
#define NANOVG_GLES2_IMPLEMENTATION
#include "nanovg_gl.h"
#include "nanovg_gl_utils.h"
#include "demo.h"
#include "perf.h"
void errorcb(int error, const char* desc)
{
printf("GLFW error %d: %s\n", error, desc);
}
int blowup = 0;
int screenshot = 0;
int premult = 0;
static void key(GLFWwindow* window, int key, int scancode, int action, int mods)
{
NVG_NOTUSED(scancode);
NVG_NOTUSED(mods);
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GL_TRUE);
if (key == GLFW_KEY_SPACE && action == GLFW_PRESS)
blowup = !blowup;
if (key == GLFW_KEY_S && action == GLFW_PRESS)
screenshot = 1;
if (key == GLFW_KEY_P && action == GLFW_PRESS)
premult = !premult;
}
int main()
{
GLFWwindow* window;
DemoData data;
NVGcontext* vg = NULL;
PerfGraph fps;
double prevt = 0;
if (!glfwInit()) {
printf("Failed to init GLFW.");
return -1;
}
initGraph(&fps, GRAPH_RENDER_FPS, "Frame Time");
glfwSetErrorCallback(errorcb);
glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
window = glfwCreateWindow(1000, 600, "NanoVG", NULL, NULL);
// window = glfwCreateWindow(1000, 600, "NanoVG", glfwGetPrimaryMonitor(), NULL);
if (!window) {
glfwTerminate();
return -1;
}
glfwSetKeyCallback(window, key);
glfwMakeContextCurrent(window);
vg = nvgCreateGLES2(NVG_ANTIALIAS | NVG_STENCIL_STROKES | NVG_DEBUG);
if (vg == NULL) {
printf("Could not init nanovg.\n");
return -1;
}
if (loadDemoData(vg, &data) == -1)
return -1;
glfwSwapInterval(0);
glfwSetTime(0);
prevt = glfwGetTime();
while (!glfwWindowShouldClose(window))
{
double mx, my, t, dt;
int winWidth, winHeight;
int fbWidth, fbHeight;
float pxRatio;
t = glfwGetTime();
dt = t - prevt;
prevt = t;
updateGraph(&fps, dt);
glfwGetCursorPos(window, &mx, &my);
glfwGetWindowSize(window, &winWidth, &winHeight);
glfwGetFramebufferSize(window, &fbWidth, &fbHeight);
// Calculate pixel ration for hi-dpi devices.
pxRatio = (float)fbWidth / (float)winWidth;
// Update and render
glViewport(0, 0, fbWidth, fbHeight);
if (premult)
glClearColor(0,0,0,0);
else
glClearColor(0.3f, 0.3f, 0.32f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
nvgBeginFrame(vg, winWidth, winHeight, pxRatio);
renderDemo(vg, mx,my, winWidth,winHeight, t, blowup, &data);
renderGraph(vg, 5,5, &fps);
nvgEndFrame(vg);
if (screenshot) {
screenshot = 0;
saveScreenShot(fbWidth, fbHeight, premult, "dump.png");
}
glEnable(GL_DEPTH_TEST);
glfwSwapBuffers(window);
glfwPollEvents();
}
freeDemoData(vg, &data);
nvgDeleteGLES2(vg);
glfwTerminate();
return 0;
}
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/example_gles3.c | C | //
// Copyright (c) 2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#include <stdio.h>
#define GLFW_INCLUDE_ES3
#define GLFW_INCLUDE_GLEXT
#include <GLFW/glfw3.h>
#include "nanovg.h"
#define NANOVG_GLES3_IMPLEMENTATION
#include "nanovg_gl.h"
#include "nanovg_gl_utils.h"
#include "demo.h"
#include "perf.h"
void errorcb(int error, const char* desc)
{
printf("GLFW error %d: %s\n", error, desc);
}
int blowup = 0;
int screenshot = 0;
int premult = 0;
static void key(GLFWwindow* window, int key, int scancode, int action, int mods)
{
NVG_NOTUSED(scancode);
NVG_NOTUSED(mods);
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GL_TRUE);
if (key == GLFW_KEY_SPACE && action == GLFW_PRESS)
blowup = !blowup;
if (key == GLFW_KEY_S && action == GLFW_PRESS)
screenshot = 1;
if (key == GLFW_KEY_P && action == GLFW_PRESS)
premult = !premult;
}
int main()
{
GLFWwindow* window;
DemoData data;
NVGcontext* vg = NULL;
PerfGraph fps;
double prevt = 0;
if (!glfwInit()) {
printf("Failed to init GLFW.");
return -1;
}
initGraph(&fps, GRAPH_RENDER_FPS, "Frame Time");
glfwSetErrorCallback(errorcb);
glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
window = glfwCreateWindow(1000, 600, "NanoVG", NULL, NULL);
// window = glfwCreateWindow(1000, 600, "NanoVG", glfwGetPrimaryMonitor(), NULL);
if (!window) {
glfwTerminate();
return -1;
}
glfwSetKeyCallback(window, key);
glfwMakeContextCurrent(window);
vg = nvgCreateGLES3(NVG_ANTIALIAS | NVG_STENCIL_STROKES | NVG_DEBUG);
if (vg == NULL) {
printf("Could not init nanovg.\n");
return -1;
}
if (loadDemoData(vg, &data) == -1)
return -1;
glfwSwapInterval(0);
glfwSetTime(0);
prevt = glfwGetTime();
while (!glfwWindowShouldClose(window))
{
double mx, my, t, dt;
int winWidth, winHeight;
int fbWidth, fbHeight;
float pxRatio;
t = glfwGetTime();
dt = t - prevt;
prevt = t;
updateGraph(&fps, dt);
glfwGetCursorPos(window, &mx, &my);
glfwGetWindowSize(window, &winWidth, &winHeight);
glfwGetFramebufferSize(window, &fbWidth, &fbHeight);
// Calculate pixel ration for hi-dpi devices.
pxRatio = (float)fbWidth / (float)winWidth;
// Update and render
glViewport(0, 0, fbWidth, fbHeight);
if (premult)
glClearColor(0,0,0,0);
else
glClearColor(0.3f, 0.3f, 0.32f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
nvgBeginFrame(vg, winWidth, winHeight, pxRatio);
renderDemo(vg, mx,my, winWidth,winHeight, t, blowup, &data);
renderGraph(vg, 5,5, &fps);
nvgEndFrame(vg);
glEnable(GL_DEPTH_TEST);
if (screenshot) {
screenshot = 0;
saveScreenShot(fbWidth, fbHeight, premult, "dump.png");
}
glfwSwapBuffers(window);
glfwPollEvents();
}
freeDemoData(vg, &data);
nvgDeleteGLES3(vg);
glfwTerminate();
return 0;
}
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/example_gxm.c | C | //
// Copyright (c) 2024 xfangfang xfangfang@126.com
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#include <stdio.h>
#include <psp2/ctrl.h>
#include <psp2/kernel/clib.h>
#include <psp2/kernel/processmgr.h>
#include "nanovg.h"
#define NANOVG_GXM_IMPLEMENTATION
#define NANOVG_GXM_UTILS_IMPLEMENTATION
#include "nanovg_gxm.h"
#include "demo.h"
#include "perf.h"
#define MOUSE_MOVE 5
#define CLAMP_NUM(a, min, max) { if(a>max) a=max; if(a<min) a=min; }
#define MIN(a,b) (((a)<(b))?(a):(b))
#define MAX(a,b) (((a)>(b))?(a):(b))
#define STB_DXT_IMPLEMENTATION
#include "stb_dxt.h"
#include "stb_image.h"
static inline __attribute__((always_inline)) uint32_t nearest_po2(uint32_t val) {
val--;
val |= val >> 1;
val |= val >> 2;
val |= val >> 4;
val |= val >> 8;
val |= val >> 16;
val++;
return val;
}
static inline __attribute__((always_inline)) uint64_t morton_1(uint64_t x) {
x = x & 0x5555555555555555;
x = (x | (x >> 1)) & 0x3333333333333333;
x = (x | (x >> 2)) & 0x0F0F0F0F0F0F0F0F;
x = (x | (x >> 4)) & 0x00FF00FF00FF00FF;
x = (x | (x >> 8)) & 0x0000FFFF0000FFFF;
x = (x | (x >> 16)) & 0xFFFFFFFFFFFFFFFF;
return x;
}
static inline __attribute__((always_inline)) void d2xy_morton(uint64_t d, uint64_t *x, uint64_t *y) {
*x = morton_1(d);
*y = morton_1(d >> 1);
}
static inline __attribute__((always_inline)) void extract_block(const uint8_t *src, uint32_t width, uint8_t *block) {
for (int j = 0; j < 4; j++) {
memcpy(&block[j * 4 * 4], src, 16);
src += width * 4;
}
}
/**
* Compress RGBA data to DXT1 or DXT5
* Thanks to https://github.com/Rinnegatamante/vitaGL/blob/master/source/utils/gpu_utils.c
* @param dst DXT data
* @param src RGBA data
* @param w source width
* @param h source height
* @param stride source stride
* @param last_size max block size in pixel of last compression round, default is 64
* @param isdxt5 0 for DXT1, others for DXT5
*/
static void dxt_compress_ext(uint8_t *dst, uint8_t *src, uint32_t w, uint32_t h, uint32_t stride, uint32_t last_size, int isdxt5) {
uint8_t block[64];
uint32_t align_w = MAX(nearest_po2(w), last_size);
uint32_t align_h = MAX(nearest_po2(h), last_size);
uint32_t s = MIN(align_w, align_h);
uint32_t num_blocks = s * s / 16;
const uint32_t block_size = isdxt5 ? 16 : 8;
uint64_t d, offs_x, offs_y;
for (d = 0; d < num_blocks; d++, dst += block_size) {
d2xy_morton(d, &offs_x, &offs_y);
if (offs_x * 4 >= h || offs_y * 4 >= w)
continue;
extract_block(src + offs_y * 16 + offs_x * stride * 16, stride, block);
stb_compress_dxt_block(dst, block, isdxt5, STB_DXT_NORMAL);
}
if (align_w > align_h) {
return dxt_compress_ext(dst, src + s * 4, w - s, h, stride, s, isdxt5);
}
if (align_w < align_h) {
return dxt_compress_ext(dst, src + stride * s * 4, w, h - s, stride, s, isdxt5);
}
}
void dxt_compress(uint8_t *dst, uint8_t *src, uint32_t w, uint32_t h, int isdxt5) {
dxt_compress_ext(dst, src, w, h, w, 64, isdxt5);
}
int loadCompressedImage(NVGcontext *vg, const char *path, int flag) {
unsigned char *img;
int w, h, n;
img = stbi_load(path, &w, &h, &n, 4);
if (img == NULL) {
return 0;
}
int image = nvgCreateImageRGBA(vg, w, h, flag, NULL);
NVGXMtexture *texture = nvgxmImageHandle(vg, image);
dxt_compress(texture->data, img, w, h, flag & NVG_IMAGE_DXT5);
stbi_image_free(img);
return image;
}
void renderImage(NVGcontext *vg, int image, float x, float y, float w, float h) {
NVGpaint imgPaint = nvgImagePattern(vg, x, y, w, h, 0, image, 1);
nvgBeginPath(vg);
nvgRect(vg, x, y, w, h);
nvgFillPaint(vg, imgPaint);
nvgFill(vg);
nvgStrokeWidth(vg, 1);
nvgStrokeColor(vg, nvgRGBAf(1, 1, 0, 1));
nvgStroke(vg);
}
int main() {
DemoData data;
PerfGraph fps, cpuGraph;
SceCtrlData pad, old_pad;
int blowup = 0;
int screenshot = 0;
int premult = 0;
unsigned int pressed = 0;
NVGcontext *vg = NULL;
double prevt = 0, cpuTime = 0;
NVGcolor clearColor = nvgRGBAf(0.3f, 0.3f, 0.32f, 1.0f);
double mx = DISPLAY_WIDTH / 2, my = DISPLAY_HEIGHT / 2, t, dt;
#ifdef USE_VITA_SHARK
if (shark_init("app0:module/libshacccg.suprx") < 0) {
sceClibPrintf("vitashark: failed to initialize\n");
return EXIT_FAILURE;
}
#endif
NVGXMwindow *window = NULL;
NVGXMinitOptions initOptions = {
.msaa = SCE_GXM_MULTISAMPLE_4X,
.swapInterval = 0,
.dumpShader = 1, // Save shaders to ux0:data/nvg_*.c
.scenesPerFrame = 1,
};
window = gxmCreateWindow(&initOptions);
if (window == NULL) {
sceClibPrintf("gxm: failed to create window\n");
return EXIT_FAILURE;
}
vg = nvgCreateGXM(window->context, window->shader_patcher, NVG_STENCIL_STROKES);
if (vg == NULL) {
sceClibPrintf("nanovg: failed to initialize\n");
return EXIT_FAILURE;
}
#ifdef USE_VITA_SHARK
// Clean up vitashark as we don't need it anymore
shark_end();
#endif
if (loadDemoData(vg, &data) == -1)
return EXIT_FAILURE;
initGraph(&fps, GRAPH_RENDER_FPS, "Frame Time");
initGraph(&cpuGraph, GRAPH_RENDER_MS, "CPU Time");
memset(&pad, 0, sizeof(pad));
memset(&old_pad, 0, sizeof(old_pad));
gxmClearColor(clearColor.r, clearColor.g, clearColor.b, clearColor.a);
int compressedImage = loadCompressedImage(vg, "app0:/example/images/image1.jpg", NVG_IMAGE_DXT1 | NVG_IMAGE_LPDDR);
for (;;) {
sceCtrlPeekBufferPositive(0, &pad, 1);
pressed = pad.buttons & ~old_pad.buttons;
old_pad = pad;
if (pressed & SCE_CTRL_START)
break;
if (pressed & SCE_CTRL_TRIANGLE)
blowup = !blowup;
if (pad.buttons & SCE_CTRL_CROSS)
screenshot = 1;
if (pressed & SCE_CTRL_SQUARE) {
premult = !premult;
if (premult)
gxmClearColor(0.0f, 0.0f, 0.0f, 0.0f);
else
gxmClearColor(0.3f, 0.3f, 0.32f, 1.0f);
}
// mouse cursor emulation
mx += pad.buttons & SCE_CTRL_RIGHT ? MOUSE_MOVE : 0;
mx -= pad.buttons & SCE_CTRL_LEFT ? MOUSE_MOVE : 0;
my += pad.buttons & SCE_CTRL_DOWN ? MOUSE_MOVE : 0;
my -= pad.buttons & SCE_CTRL_UP ? MOUSE_MOVE : 0;
CLAMP_NUM(mx, 0, DISPLAY_WIDTH)
CLAMP_NUM(my, 0, DISPLAY_HEIGHT)
t = (float) sceKernelGetProcessTimeLow() / 1000000.0f;
dt = t - prevt;
prevt = t;
gxmBeginFrame();
gxmClear();
nvgBeginFrame(vg, DISPLAY_WIDTH, DISPLAY_HEIGHT, 1.0f);
renderDemo(vg, (float) mx, (float) my, DISPLAY_WIDTH, DISPLAY_HEIGHT, (float) t, blowup, &data);
renderImage(vg, compressedImage, 415, 5, 133, 100);
renderGraph(vg, 5, 5, &fps);
renderGraph(vg, 5 + 200 + 5, 5, &cpuGraph);
nvgEndFrame(vg);
gxmEndFrame();
gxmSwapBuffer();
cpuTime = (float) sceKernelGetProcessTimeLow() / 1000000.0f - t;
updateGraph(&fps, (float) dt);
updateGraph(&cpuGraph, (float) cpuTime);
if (screenshot) {
screenshot = 0;
saveScreenShot(DISPLAY_WIDTH, DISPLAY_HEIGHT, premult, "ux0:data/nanovg-gxm-screenshot.png");
}
}
freeDemoData(vg, &data);
nvgDeleteGXM(vg);
gxmDeleteWindow(window);
sceClibPrintf("Average Frame Time: %.2f ms\n", getGraphAverage(&fps) * 1000.0f);
sceClibPrintf(" CPU Time: %.2f ms\n", getGraphAverage(&cpuGraph) * 1000.0f);
return EXIT_SUCCESS;
}
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/example_gxm_fbo.c | C | //
// Copyright (c) 2024 xfangfang xfangfang@126.com
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#include <stdio.h>
#include <psp2/ctrl.h>
#include <psp2/kernel/clib.h>
#include <psp2/kernel/processmgr.h>
#include "nanovg.h"
#define NANOVG_GXM_IMPLEMENTATION
#define NANOVG_GXM_UTILS_IMPLEMENTATION
#include "nanovg_gxm.h"
#include "perf.h"
#define NVG_IMAGE 1
int image = 0;
void renderPattern(NVGcontext *vg, NVGXMframebuffer *fb, float t) {
int winWidth, winHeight;
int pw, ph, x, y;
float s = 20.0f;
float sr = (cosf(t) + 1) * 0.5f;
float r = s * 0.6f * (0.2f + 0.8f * sr);
if (fb == NULL) return;
nvgImageSize(vg, image, &winWidth, &winHeight);
// Draw some stuff to an FBO as a test
gxmBeginFrameEx(fb, 0);
gxmClearColor(0, 0, 0, 0);
gxmClear();
nvgBeginFrame(vg, winWidth, winHeight, 1.0f);
pw = (int) ceilf(winWidth / s);
ph = (int) ceilf(winHeight / s);
nvgBeginPath(vg);
for (y = 0; y < ph; y++) {
for (x = 0; x < pw; x++) {
float cx = (x + 0.5f) * s;
float cy = (y + 0.5f) * s;
nvgCircle(vg, cx, cy, r);
}
}
nvgFillColor(vg, nvgRGBA(220, 160, 0, 200));
nvgFill(vg);
nvgEndFrame(vg);
gxmEndFrame();
}
int loadFonts(NVGcontext *vg) {
int font;
font = nvgCreateFont(vg, "sans", "../example/Roboto-Regular.ttf");
if (font == -1) {
printf("Could not add font regular.\n");
return -1;
}
font = nvgCreateFont(vg, "sans-bold", "../example/Roboto-Bold.ttf");
if (font == -1) {
printf("Could not add font bold.\n");
return -1;
}
return 0;
}
int main() {
PerfGraph fps, cpuGraph;
SceCtrlData pad;
NVGcontext *vg = NULL;
double prevt = 0, cpuTime = 0;
double t, dt;
int i;
int texture_width = 100, texture_height = 100;
int texture_stride = ALIGN(texture_width, 8);
#ifdef USE_VITA_SHARK
if (shark_init("app0:module/libshacccg.suprx") < 0) {
sceClibPrintf("vitashark: failed to initialize\n");
return EXIT_FAILURE;
}
#endif
NVGXMwindow *window = NULL;
NVGXMinitOptions initOptions = {
.msaa = SCE_GXM_MULTISAMPLE_4X,
.swapInterval = 0,
.dumpShader = 1, // Save shaders to ux0:data/nvg_*.c
.scenesPerFrame = 1,
};
window = gxmCreateWindow(&initOptions);
if (window == NULL) {
sceClibPrintf("gxm: failed to create window\n");
return EXIT_FAILURE;
}
vg = nvgCreateGXM(window->context, window->shader_patcher, NVG_STENCIL_STROKES);
if (vg == NULL) {
sceClibPrintf("nanovg: failed to initialize\n");
return EXIT_FAILURE;
}
#ifdef USE_VITA_SHARK
// Clean up vitashark as we don't need it anymore
shark_end();
#endif
initGraph(&fps, GRAPH_RENDER_FPS, "Frame Time");
initGraph(&cpuGraph, GRAPH_RENDER_MS, "CPU Time");
#ifdef NVG_IMAGE
image = nvgCreateImageRGBA(vg, texture_width, texture_height, NVG_IMAGE_REPEATX | NVG_IMAGE_REPEATY, NULL);
if (image == 0) {
sceClibPrintf("nanovg: failed to create image\n");
return EXIT_FAILURE;
}
NVGXMtexture *texture = nvgxmImageHandle(vg, image);
#else
NVGXMtexture *texture = gxmCreateTexture(texture_width, texture_height, SCE_GXM_TEXTURE_FORMAT_U8U8U8U8_ABGR, NULL);
if (texture == NULL) {
sceClibPrintf("gxm: failed to allocate texture\n");
return EXIT_FAILURE;
}
sceGxmTextureSetUAddrMode(&texture->tex, SCE_GXM_TEXTURE_ADDR_REPEAT);
sceGxmTextureSetVAddrMode(&texture->tex, SCE_GXM_TEXTURE_ADDR_REPEAT);
image = nvgxmCreateImageFromHandle(vg, &texture->tex);
#endif
NVGXMframebuffer *fb = NULL;
NVGXMframebufferInitOptions framebufferOpts = {
.display_buffer_count = 1, // Must be 1 for custom FBOs
.scenesPerFrame = 1,
.render_target = texture,
.color_format = SCE_GXM_COLOR_FORMAT_U8U8U8U8_ABGR,
.color_surface_type = SCE_GXM_COLOR_SURFACE_LINEAR,
.display_width = texture_width,
.display_height = texture_height,
.display_stride = texture_stride,
};
fb = gxmCreateFramebuffer(&framebufferOpts);
if (!fb) {
sceClibPrintf("gxm: failed to create framebuffer\n");
return EXIT_FAILURE;
}
if (loadFonts(vg) == -1) {
sceClibPrintf("Could not load fonts\n");
return EXIT_FAILURE;
}
for (;;) {
sceCtrlPeekBufferPositive(0, &pad, 1);
if (pad.buttons & SCE_CTRL_START)
break;
t = (float) sceKernelGetProcessTimeLow() / 1000000.0f;
dt = t - prevt;
prevt = t;
renderPattern(vg, fb, t);
gxmBeginFrame();
gxmClearColor(0.3f, 0.3f, 0.32f, 1.0f);
gxmClear();
nvgBeginFrame(vg, DISPLAY_WIDTH, DISPLAY_HEIGHT, 1.0f);
// Use the FBO as image pattern.
{
NVGpaint img = nvgImagePattern(vg, 0, 0, texture_width, texture_stride, 0, image, 1.0f);
nvgSave(vg);
for (i = 0; i < 20; i++) {
nvgBeginPath(vg);
nvgRect(vg, 10 + i*30,10, 10, DISPLAY_HEIGHT-20);
nvgFillColor(vg, nvgHSLA(i/19.0f, 0.5f, 0.5f, 255));
nvgFill(vg);
}
nvgBeginPath(vg);
nvgRoundedRect(vg, 140 + sinf(t*1.3f)*100, 140 + cosf(t*1.71244f)*100, 250, 250, 20);
nvgFillPaint(vg, img);
nvgFill(vg);
nvgStrokeColor(vg, nvgRGBA(220,160,0,255));
nvgStrokeWidth(vg, 3.0f);
nvgStroke(vg);
nvgRestore(vg);
}
renderGraph(vg, 5, 5, &fps);
renderGraph(vg, 5 + 200 + 5, 5, &cpuGraph);
nvgEndFrame(vg);
gxmEndFrame();
gxmSwapBuffer();
cpuTime = (float) sceKernelGetProcessTimeLow() / 1000000.0f - t;
updateGraph(&fps, (float) dt);
updateGraph(&cpuGraph, (float) cpuTime);
}
nvgDeleteGXM(vg);
#ifndef NVG_IMAGE
gxmDeleteTexture(texture);
#endif
gxmDeleteFramebuffer(fb);
gxmDeleteWindow(window);
sceClibPrintf("Average Frame Time: %.2f ms\n", getGraphAverage(&fps) * 1000.0f);
sceClibPrintf(" CPU Time: %.2f ms\n", getGraphAverage(&cpuGraph) * 1000.0f);
return EXIT_SUCCESS;
}
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/perf.c | C | #include "perf.h"
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "nanovg.h"
#ifdef _MSC_VER
#define snprintf _snprintf
#elif !defined(__MINGW32__)
#include <iconv.h>
#endif
void initGraph(PerfGraph* fps, int style, const char* name)
{
memset(fps, 0, sizeof(PerfGraph));
fps->style = style;
strncpy(fps->name, name, sizeof(fps->name));
fps->name[sizeof(fps->name)-1] = '\0';
}
void updateGraph(PerfGraph* fps, float frameTime)
{
fps->head = (fps->head+1) % GRAPH_HISTORY_COUNT;
fps->values[fps->head] = frameTime;
}
float getGraphAverage(PerfGraph* fps)
{
int i;
float avg = 0;
for (i = 0; i < GRAPH_HISTORY_COUNT; i++) {
avg += fps->values[i];
}
return avg / (float)GRAPH_HISTORY_COUNT;
}
void renderGraph(NVGcontext* vg, float x, float y, PerfGraph* fps)
{
int i;
float avg, w, h;
char str[64];
avg = getGraphAverage(fps);
w = 200;
h = 35;
nvgBeginPath(vg);
nvgRect(vg, x,y, w,h);
nvgFillColor(vg, nvgRGBA(0,0,0,128));
nvgFill(vg);
nvgBeginPath(vg);
nvgMoveTo(vg, x, y+h);
if (fps->style == GRAPH_RENDER_FPS) {
for (i = 0; i < GRAPH_HISTORY_COUNT; i++) {
float v = 1.0f / (0.00001f + fps->values[(fps->head+i) % GRAPH_HISTORY_COUNT]);
float vx, vy;
if (v > 80.0f) v = 80.0f;
vx = x + ((float)i/(GRAPH_HISTORY_COUNT-1)) * w;
vy = y + h - ((v / 80.0f) * h);
nvgLineTo(vg, vx, vy);
}
} else if (fps->style == GRAPH_RENDER_PERCENT) {
for (i = 0; i < GRAPH_HISTORY_COUNT; i++) {
float v = fps->values[(fps->head+i) % GRAPH_HISTORY_COUNT] * 1.0f;
float vx, vy;
if (v > 100.0f) v = 100.0f;
vx = x + ((float)i/(GRAPH_HISTORY_COUNT-1)) * w;
vy = y + h - ((v / 100.0f) * h);
nvgLineTo(vg, vx, vy);
}
} else {
for (i = 0; i < GRAPH_HISTORY_COUNT; i++) {
float v = fps->values[(fps->head+i) % GRAPH_HISTORY_COUNT] * 1000.0f;
float vx, vy;
if (v > 20.0f) v = 20.0f;
vx = x + ((float)i/(GRAPH_HISTORY_COUNT-1)) * w;
vy = y + h - ((v / 20.0f) * h);
nvgLineTo(vg, vx, vy);
}
}
nvgLineTo(vg, x+w, y+h);
nvgFillColor(vg, nvgRGBA(255,192,0,128));
nvgFill(vg);
nvgFontFace(vg, "sans");
if (fps->name[0] != '\0') {
nvgFontSize(vg, 12.0f);
nvgTextAlign(vg, NVG_ALIGN_LEFT|NVG_ALIGN_TOP);
nvgFillColor(vg, nvgRGBA(240,240,240,192));
nvgText(vg, x+3,y+3, fps->name, NULL);
}
if (fps->style == GRAPH_RENDER_FPS) {
nvgFontSize(vg, 15.0f);
nvgTextAlign(vg,NVG_ALIGN_RIGHT|NVG_ALIGN_TOP);
nvgFillColor(vg, nvgRGBA(240,240,240,255));
sprintf(str, "%.2f FPS", 1.0f / avg);
nvgText(vg, x+w-3,y+3, str, NULL);
nvgFontSize(vg, 13.0f);
nvgTextAlign(vg,NVG_ALIGN_RIGHT|NVG_ALIGN_BASELINE);
nvgFillColor(vg, nvgRGBA(240,240,240,160));
sprintf(str, "%.2f ms", avg * 1000.0f);
nvgText(vg, x+w-3,y+h-3, str, NULL);
}
else if (fps->style == GRAPH_RENDER_PERCENT) {
nvgFontSize(vg, 15.0f);
nvgTextAlign(vg,NVG_ALIGN_RIGHT|NVG_ALIGN_TOP);
nvgFillColor(vg, nvgRGBA(240,240,240,255));
sprintf(str, "%.1f %%", avg * 1.0f);
nvgText(vg, x+w-3,y+3, str, NULL);
} else {
nvgFontSize(vg, 15.0f);
nvgTextAlign(vg,NVG_ALIGN_RIGHT|NVG_ALIGN_TOP);
nvgFillColor(vg, nvgRGBA(240,240,240,255));
sprintf(str, "%.2f ms", avg * 1000.0f);
nvgText(vg, x+w-3,y+3, str, NULL);
}
}
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/perf.h | C/C++ Header | #ifndef PERF_H
#define PERF_H
#include "nanovg.h"
#ifdef __cplusplus
extern "C" {
#endif
enum GraphrenderStyle {
GRAPH_RENDER_FPS,
GRAPH_RENDER_MS,
GRAPH_RENDER_PERCENT,
};
#define GRAPH_HISTORY_COUNT 100
struct PerfGraph {
int style;
char name[32];
float values[GRAPH_HISTORY_COUNT];
int head;
};
typedef struct PerfGraph PerfGraph;
void initGraph(PerfGraph* fps, int style, const char* name);
void updateGraph(PerfGraph* fps, float frameTime);
void renderGraph(NVGcontext* vg, float x, float y, PerfGraph* fps);
float getGraphAverage(PerfGraph* fps);
#define GPU_QUERY_COUNT 5
struct GPUtimer {
int supported;
int cur, ret;
unsigned int queries[GPU_QUERY_COUNT];
};
typedef struct GPUtimer GPUtimer;
void initGPUTimer(GPUtimer* timer);
void startGPUTimer(GPUtimer* timer);
int stopGPUTimer(GPUtimer* timer, float* times, int maxTimes);
#ifdef __cplusplus
}
#endif
#endif // PERF_H | xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
example/stb_image_write.h | C/C++ Header | /* stbiw-0.92 - public domain - http://nothings.org/stb/stb_image_write.h
writes out PNG/BMP/TGA images to C stdio - Sean Barrett 2010
no warranty implied; use at your own risk
Before including,
#define STB_IMAGE_WRITE_IMPLEMENTATION
in the file that you want to have the implementation.
ABOUT:
This header file is a library for writing images to C stdio. It could be
adapted to write to memory or a general streaming interface; let me know.
The PNG output is not optimal; it is 20-50% larger than the file
written by a decent optimizing implementation. This library is designed
for source code compactness and simplicitly, not optimal image file size
or run-time performance.
USAGE:
There are three functions, one for each image file format:
int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
Each function returns 0 on failure and non-0 on success.
The functions create an image file defined by the parameters. The image
is a rectangle of pixels stored from left-to-right, top-to-bottom.
Each pixel contains 'comp' channels of data stored interleaved with 8-bits
per channel, in the following order: 1=Y, 2=YA, 3=RGB, 4=RGBA. (Y is
monochrome color.) The rectangle is 'w' pixels wide and 'h' pixels tall.
The *data pointer points to the first byte of the top-left-most pixel.
For PNG, "stride_in_bytes" is the distance in bytes from the first byte of
a row of pixels to the first byte of the next row of pixels.
PNG creates output files with the same number of components as the input.
The BMP and TGA formats expand Y to RGB in the file format. BMP does not
output alpha.
PNG supports writing rectangles of data even when the bytes storing rows of
data are not consecutive in memory (e.g. sub-rectangles of a larger image),
by supplying the stride between the beginning of adjacent rows. The other
formats do not. (Thus you cannot write a native-format BMP through the BMP
writer, both because it is in BGR order and because it may have padding
at the end of the line.)
*/
#ifndef INCLUDE_STB_IMAGE_WRITE_H
#define INCLUDE_STB_IMAGE_WRITE_H
#ifdef __cplusplus
extern "C" {
#endif
extern int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
extern int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
extern int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
#ifdef __cplusplus
}
#endif
#endif//INCLUDE_STB_IMAGE_WRITE_H
#ifdef STB_IMAGE_WRITE_IMPLEMENTATION
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
typedef unsigned int stbiw_uint32;
typedef int stb_image_write_test[sizeof(stbiw_uint32)==4 ? 1 : -1];
static void writefv(FILE *f, const char *fmt, va_list v)
{
while (*fmt) {
switch (*fmt++) {
case ' ': break;
case '1': { unsigned char x = (unsigned char) va_arg(v, int); fputc(x,f); break; }
case '2': { int x = va_arg(v,int); unsigned char b[2];
b[0] = (unsigned char) x; b[1] = (unsigned char) (x>>8);
fwrite(b,2,1,f); break; }
case '4': { stbiw_uint32 x = va_arg(v,int); unsigned char b[4];
b[0]=(unsigned char)x; b[1]=(unsigned char)(x>>8);
b[2]=(unsigned char)(x>>16); b[3]=(unsigned char)(x>>24);
fwrite(b,4,1,f); break; }
default:
assert(0);
return;
}
}
}
static void write3(FILE *f, unsigned char a, unsigned char b, unsigned char c)
{
unsigned char arr[3];
arr[0] = a, arr[1] = b, arr[2] = c;
fwrite(arr, 3, 1, f);
}
static void write_pixels(FILE *f, int rgb_dir, int vdir, int x, int y, int comp, void *data, int write_alpha, int scanline_pad)
{
unsigned char bg[3] = { 255, 0, 255}, px[3];
stbiw_uint32 zero = 0;
int i,j,k, j_end;
if (y <= 0)
return;
if (vdir < 0)
j_end = -1, j = y-1;
else
j_end = y, j = 0;
for (; j != j_end; j += vdir) {
for (i=0; i < x; ++i) {
unsigned char *d = (unsigned char *) data + (j*x+i)*comp;
if (write_alpha < 0)
fwrite(&d[comp-1], 1, 1, f);
switch (comp) {
case 1:
case 2: write3(f, d[0],d[0],d[0]);
break;
case 4:
if (!write_alpha) {
// composite against pink background
for (k=0; k < 3; ++k)
px[k] = bg[k] + ((d[k] - bg[k]) * d[3])/255;
write3(f, px[1-rgb_dir],px[1],px[1+rgb_dir]);
break;
}
/* FALLTHROUGH */
case 3:
write3(f, d[1-rgb_dir],d[1],d[1+rgb_dir]);
break;
}
if (write_alpha > 0)
fwrite(&d[comp-1], 1, 1, f);
}
fwrite(&zero,scanline_pad,1,f);
}
}
static int outfile(char const *filename, int rgb_dir, int vdir, int x, int y, int comp, void *data, int alpha, int pad, const char *fmt, ...)
{
FILE *f;
if (y < 0 || x < 0) return 0;
f = fopen(filename, "wb");
if (f) {
va_list v;
va_start(v, fmt);
writefv(f, fmt, v);
va_end(v);
write_pixels(f,rgb_dir,vdir,x,y,comp,data,alpha,pad);
fclose(f);
}
return f != NULL;
}
int stbi_write_bmp(char const *filename, int x, int y, int comp, const void *data)
{
int pad = (-x*3) & 3;
return outfile(filename,-1,-1,x,y,comp,(void *) data,0,pad,
"11 4 22 4" "4 44 22 444444",
'B', 'M', 14+40+(x*3+pad)*y, 0,0, 14+40, // file header
40, x,y, 1,24, 0,0,0,0,0,0); // bitmap header
}
int stbi_write_tga(char const *filename, int x, int y, int comp, const void *data)
{
int has_alpha = !(comp & 1);
return outfile(filename, -1,-1, x, y, comp, (void *) data, has_alpha, 0,
"111 221 2222 11", 0,0,2, 0,0,0, 0,0,x,y, 24+8*has_alpha, 8*has_alpha);
}
// stretchy buffer; stbi__sbpush() == vector<>::push_back() -- stbi__sbcount() == vector<>::size()
#define stbi__sbraw(a) ((int *) (a) - 2)
#define stbi__sbm(a) stbi__sbraw(a)[0]
#define stbi__sbn(a) stbi__sbraw(a)[1]
#define stbi__sbneedgrow(a,n) ((a)==0 || stbi__sbn(a)+n >= stbi__sbm(a))
#define stbi__sbmaybegrow(a,n) (stbi__sbneedgrow(a,(n)) ? stbi__sbgrow(a,n) : 0)
#define stbi__sbgrow(a,n) stbi__sbgrowf((void **) &(a), (n), sizeof(*(a)))
#define stbi__sbpush(a, v) (stbi__sbmaybegrow(a,1), (a)[stbi__sbn(a)++] = (v))
#define stbi__sbcount(a) ((a) ? stbi__sbn(a) : 0)
#define stbi__sbfree(a) ((a) ? free(stbi__sbraw(a)),0 : 0)
static void *stbi__sbgrowf(void **arr, int increment, int itemsize)
{
int m = *arr ? 2*stbi__sbm(*arr)+increment : increment+1;
void *p = realloc(*arr ? stbi__sbraw(*arr) : 0, itemsize * m + sizeof(int)*2);
assert(p);
if (p) {
if (!*arr) ((int *) p)[1] = 0;
*arr = (void *) ((int *) p + 2);
stbi__sbm(*arr) = m;
}
return *arr;
}
static unsigned char *stbi__zlib_flushf(unsigned char *data, unsigned int *bitbuffer, int *bitcount)
{
while (*bitcount >= 8) {
stbi__sbpush(data, (unsigned char) *bitbuffer);
*bitbuffer >>= 8;
*bitcount -= 8;
}
return data;
}
static int stbi__zlib_bitrev(int code, int codebits)
{
int res=0;
while (codebits--) {
res = (res << 1) | (code & 1);
code >>= 1;
}
return res;
}
static unsigned int stbi__zlib_countm(unsigned char *a, unsigned char *b, int limit)
{
int i;
for (i=0; i < limit && i < 258; ++i)
if (a[i] != b[i]) break;
return i;
}
static unsigned int stbi__zhash(unsigned char *data)
{
stbiw_uint32 hash = data[0] + (data[1] << 8) + (data[2] << 16);
hash ^= hash << 3;
hash += hash >> 5;
hash ^= hash << 4;
hash += hash >> 17;
hash ^= hash << 25;
hash += hash >> 6;
return hash;
}
#define stbi__zlib_flush() (out = stbi__zlib_flushf(out, &bitbuf, &bitcount))
#define stbi__zlib_add(code,codebits) \
(bitbuf |= (code) << bitcount, bitcount += (codebits), stbi__zlib_flush())
#define stbi__zlib_huffa(b,c) stbi__zlib_add(stbi__zlib_bitrev(b,c),c)
// default huffman tables
#define stbi__zlib_huff1(n) stbi__zlib_huffa(0x30 + (n), 8)
#define stbi__zlib_huff2(n) stbi__zlib_huffa(0x190 + (n)-144, 9)
#define stbi__zlib_huff3(n) stbi__zlib_huffa(0 + (n)-256,7)
#define stbi__zlib_huff4(n) stbi__zlib_huffa(0xc0 + (n)-280,8)
#define stbi__zlib_huff(n) ((n) <= 143 ? stbi__zlib_huff1(n) : (n) <= 255 ? stbi__zlib_huff2(n) : (n) <= 279 ? stbi__zlib_huff3(n) : stbi__zlib_huff4(n))
#define stbi__zlib_huffb(n) ((n) <= 143 ? stbi__zlib_huff1(n) : stbi__zlib_huff2(n))
#define stbi__ZHASH 16384
unsigned char * stbi_zlib_compress(unsigned char *data, int data_len, int *out_len, int quality)
{
static unsigned short lengthc[] = { 3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258, 259 };
static unsigned char lengtheb[]= { 0,0,0,0,0,0,0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0 };
static unsigned short distc[] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577, 32768 };
static unsigned char disteb[] = { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13 };
unsigned int bitbuf=0;
int i,j, bitcount=0;
unsigned char *out = NULL;
unsigned char **hash_table[stbi__ZHASH]; // 64KB on the stack!
if (quality < 5) quality = 5;
stbi__sbpush(out, 0x78); // DEFLATE 32K window
stbi__sbpush(out, 0x5e); // FLEVEL = 1
stbi__zlib_add(1,1); // BFINAL = 1
stbi__zlib_add(1,2); // BTYPE = 1 -- fixed huffman
for (i=0; i < stbi__ZHASH; ++i)
hash_table[i] = NULL;
i=0;
while (i < data_len-3) {
// hash next 3 bytes of data to be compressed
int h = stbi__zhash(data+i)&(stbi__ZHASH-1), best=3;
unsigned char *bestloc = 0;
unsigned char **hlist = hash_table[h];
int n = stbi__sbcount(hlist);
for (j=0; j < n; ++j) {
if (hlist[j]-data > i-32768) { // if entry lies within window
int d = stbi__zlib_countm(hlist[j], data+i, data_len-i);
if (d >= best) best=d,bestloc=hlist[j];
}
}
// when hash table entry is too long, delete half the entries
if (hash_table[h] && stbi__sbn(hash_table[h]) == 2*quality) {
memcpy(hash_table[h], hash_table[h]+quality, sizeof(hash_table[h][0])*quality);
stbi__sbn(hash_table[h]) = quality;
}
stbi__sbpush(hash_table[h],data+i);
if (bestloc) {
// "lazy matching" - check match at *next* byte, and if it's better, do cur byte as literal
h = stbi__zhash(data+i+1)&(stbi__ZHASH-1);
hlist = hash_table[h];
n = stbi__sbcount(hlist);
for (j=0; j < n; ++j) {
if (hlist[j]-data > i-32767) {
int e = stbi__zlib_countm(hlist[j], data+i+1, data_len-i-1);
if (e > best) { // if next match is better, bail on current match
bestloc = NULL;
break;
}
}
}
}
if (bestloc) {
int d = data+i - bestloc; // distance back
assert(d <= 32767 && best <= 258);
for (j=0; best > lengthc[j+1]-1; ++j);
stbi__zlib_huff(j+257);
if (lengtheb[j]) stbi__zlib_add(best - lengthc[j], lengtheb[j]);
for (j=0; d > distc[j+1]-1; ++j);
stbi__zlib_add(stbi__zlib_bitrev(j,5),5);
if (disteb[j]) stbi__zlib_add(d - distc[j], disteb[j]);
i += best;
} else {
stbi__zlib_huffb(data[i]);
++i;
}
}
// write out final bytes
for (;i < data_len; ++i)
stbi__zlib_huffb(data[i]);
stbi__zlib_huff(256); // end of block
// pad with 0 bits to byte boundary
while (bitcount)
stbi__zlib_add(0,1);
for (i=0; i < stbi__ZHASH; ++i)
(void) stbi__sbfree(hash_table[i]);
{
// compute adler32 on input
unsigned int i=0, s1=1, s2=0, blocklen = data_len % 5552;
int j=0;
while (j < data_len) {
for (i=0; i < blocklen; ++i) s1 += data[j+i], s2 += s1;
s1 %= 65521, s2 %= 65521;
j += blocklen;
blocklen = 5552;
}
stbi__sbpush(out, (unsigned char) (s2 >> 8));
stbi__sbpush(out, (unsigned char) s2);
stbi__sbpush(out, (unsigned char) (s1 >> 8));
stbi__sbpush(out, (unsigned char) s1);
}
*out_len = stbi__sbn(out);
// make returned pointer freeable
memmove(stbi__sbraw(out), out, *out_len);
return (unsigned char *) stbi__sbraw(out);
}
unsigned int stbi__crc32(unsigned char *buffer, int len)
{
static unsigned int crc_table[256];
unsigned int crc = ~0u;
int i,j;
if (crc_table[1] == 0)
for(i=0; i < 256; i++)
for (crc_table[i]=i, j=0; j < 8; ++j)
crc_table[i] = (crc_table[i] >> 1) ^ (crc_table[i] & 1 ? 0xedb88320 : 0);
for (i=0; i < len; ++i)
crc = (crc >> 8) ^ crc_table[buffer[i] ^ (crc & 0xff)];
return ~crc;
}
#define stbi__wpng4(o,a,b,c,d) ((o)[0]=(unsigned char)(a),(o)[1]=(unsigned char)(b),(o)[2]=(unsigned char)(c),(o)[3]=(unsigned char)(d),(o)+=4)
#define stbi__wp32(data,v) stbi__wpng4(data, (v)>>24,(v)>>16,(v)>>8,(v));
#define stbi__wptag(data,s) stbi__wpng4(data, s[0],s[1],s[2],s[3])
static void stbi__wpcrc(unsigned char **data, int len)
{
unsigned int crc = stbi__crc32(*data - len - 4, len+4);
stbi__wp32(*data, crc);
}
static unsigned char stbi__paeth(int a, int b, int c)
{
int p = a + b - c, pa = abs(p-a), pb = abs(p-b), pc = abs(p-c);
if (pa <= pb && pa <= pc) return (unsigned char) a;
if (pb <= pc) return (unsigned char) b;
return (unsigned char) c;
}
unsigned char *stbi_write_png_to_mem(unsigned char *pixels, int stride_bytes, int x, int y, int n, int *out_len)
{
int ctype[5] = { -1, 0, 4, 2, 6 };
unsigned char sig[8] = { 137,80,78,71,13,10,26,10 };
unsigned char *out,*o, *filt, *zlib;
signed char *line_buffer;
int i,j,k,p,zlen;
if (stride_bytes == 0)
stride_bytes = x * n;
filt = (unsigned char *) malloc((x*n+1) * y); if (!filt) return 0;
line_buffer = (signed char *) malloc(x * n); if (!line_buffer) { free(filt); return 0; }
for (j=0; j < y; ++j) {
static int mapping[] = { 0,1,2,3,4 };
static int firstmap[] = { 0,1,0,5,6 };
int *mymap = j ? mapping : firstmap;
int best = 0, bestval = 0x7fffffff;
for (p=0; p < 2; ++p) {
for (k= p?best:0; k < 5; ++k) {
int type = mymap[k],est=0;
unsigned char *z = pixels + stride_bytes*j;
for (i=0; i < n; ++i)
switch (type) {
case 0: line_buffer[i] = z[i]; break;
case 1: line_buffer[i] = z[i]; break;
case 2: line_buffer[i] = z[i] - z[i-stride_bytes]; break;
case 3: line_buffer[i] = z[i] - (z[i-stride_bytes]>>1); break;
case 4: line_buffer[i] = (signed char) (z[i] - stbi__paeth(0,z[i-stride_bytes],0)); break;
case 5: line_buffer[i] = z[i]; break;
case 6: line_buffer[i] = z[i]; break;
}
for (i=n; i < x*n; ++i) {
switch (type) {
case 0: line_buffer[i] = z[i]; break;
case 1: line_buffer[i] = z[i] - z[i-n]; break;
case 2: line_buffer[i] = z[i] - z[i-stride_bytes]; break;
case 3: line_buffer[i] = z[i] - ((z[i-n] + z[i-stride_bytes])>>1); break;
case 4: line_buffer[i] = z[i] - stbi__paeth(z[i-n], z[i-stride_bytes], z[i-stride_bytes-n]); break;
case 5: line_buffer[i] = z[i] - (z[i-n]>>1); break;
case 6: line_buffer[i] = z[i] - stbi__paeth(z[i-n], 0,0); break;
}
}
if (p) break;
for (i=0; i < x*n; ++i)
est += abs((signed char) line_buffer[i]);
if (est < bestval) { bestval = est; best = k; }
}
}
// when we get here, best contains the filter type, and line_buffer contains the data
filt[j*(x*n+1)] = (unsigned char) best;
memcpy(filt+j*(x*n+1)+1, line_buffer, x*n);
}
free(line_buffer);
zlib = stbi_zlib_compress(filt, y*( x*n+1), &zlen, 8); // increase 8 to get smaller but use more memory
free(filt);
if (!zlib) return 0;
// each tag requires 12 bytes of overhead
out = (unsigned char *) malloc(8 + 12+13 + 12+zlen + 12);
if (!out) return 0;
*out_len = 8 + 12+13 + 12+zlen + 12;
o=out;
memcpy(o,sig,8); o+= 8;
stbi__wp32(o, 13); // header length
stbi__wptag(o, "IHDR");
stbi__wp32(o, x);
stbi__wp32(o, y);
*o++ = 8;
*o++ = (unsigned char) ctype[n];
*o++ = 0;
*o++ = 0;
*o++ = 0;
stbi__wpcrc(&o,13);
stbi__wp32(o, zlen);
stbi__wptag(o, "IDAT");
memcpy(o, zlib, zlen); o += zlen; free(zlib);
stbi__wpcrc(&o, zlen);
stbi__wp32(o,0);
stbi__wptag(o, "IEND");
stbi__wpcrc(&o,0);
assert(o == out + *out_len);
return out;
}
int stbi_write_png(char const *filename, int x, int y, int comp, const void *data, int stride_bytes)
{
FILE *f;
int len;
unsigned char *png = stbi_write_png_to_mem((unsigned char *) data, stride_bytes, x, y, comp, &len);
if (!png) return 0;
f = fopen(filename, "wb");
if (!f) { free(png); return 0; }
fwrite(png, 1, len, f);
fclose(f);
free(png);
return 1;
}
#endif // STB_IMAGE_WRITE_IMPLEMENTATION
/* Revision history
0.92 (2010-08-01)
casts to unsigned char to fix warnings
0.91 (2010-07-17)
first public release
0.90 first internal release
*/
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
obsolete/nanovg_gl2.h | C/C++ Header | //
// Copyright (c) 2009-2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#ifndef NANOVG_GL2_H
#define NANOVG_GL2_H
#ifdef __cplusplus
extern "C" {
#endif
#define NVG_ANTIALIAS 1
#ifdef NANOVG_GLES2_IMPLEMENTATION
# ifndef NANOVG_GLES2
# define NANOVG_GLES2
# endif
# ifndef NANOVG_GL2_IMPLEMENTATION
# define NANOVG_GL2_IMPLEMENTATION
# endif
#endif
#ifdef NANOVG_GLES2
struct NVGcontext* nvgCreateGLES2(int atlasw, int atlash, int edgeaa);
void nvgDeleteGLES2(struct NVGcontext* ctx);
#else
struct NVGcontext* nvgCreateGL2(int atlasw, int atlash, int edgeaa);
void nvgDeleteGL2(struct NVGcontext* ctx);
#endif
#ifdef __cplusplus
}
#endif
#endif
#ifdef NANOVG_GL2_IMPLEMENTATION
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "nanovg.h"
enum GLNVGuniformLoc {
GLNVG_LOC_VIEWSIZE,
GLNVG_LOC_SCISSORMAT,
GLNVG_LOC_SCISSOREXT,
GLNVG_LOC_SCISSORSCALE,
GLNVG_LOC_PAINTMAT,
GLNVG_LOC_EXTENT,
GLNVG_LOC_RADIUS,
GLNVG_LOC_FEATHER,
GLNVG_LOC_INNERCOL,
GLNVG_LOC_OUTERCOL,
GLNVG_LOC_STROKEMULT,
GLNVG_LOC_TEX,
GLNVG_LOC_TEXTYPE,
GLNVG_LOC_TYPE,
GLNVG_MAX_LOCS
};
enum GLNVGshaderType {
NSVG_SHADER_FILLGRAD,
NSVG_SHADER_FILLIMG,
NSVG_SHADER_SIMPLE,
NSVG_SHADER_IMG
};
struct GLNVGshader {
GLuint prog;
GLuint frag;
GLuint vert;
GLint loc[GLNVG_MAX_LOCS];
};
struct GLNVGtexture {
int id;
GLuint tex;
int width, height;
int type;
};
struct GLNVGcontext {
struct GLNVGshader shader;
struct GLNVGtexture* textures;
float viewWidth, viewHeight;
int ntextures;
int ctextures;
int textureId;
GLuint vertBuf;
int edgeAntiAlias;
};
static struct GLNVGtexture* glnvg__allocTexture(struct GLNVGcontext* gl)
{
struct GLNVGtexture* tex = NULL;
int i;
for (i = 0; i < gl->ntextures; i++) {
if (gl->textures[i].id == 0) {
tex = &gl->textures[i];
break;
}
}
if (tex == NULL) {
if (gl->ntextures+1 > gl->ctextures) {
gl->ctextures = (gl->ctextures == 0) ? 2 : gl->ctextures*2;
gl->textures = (struct GLNVGtexture*)realloc(gl->textures, sizeof(struct GLNVGtexture)*gl->ctextures);
if (gl->textures == NULL) return NULL;
}
tex = &gl->textures[gl->ntextures++];
}
memset(tex, 0, sizeof(*tex));
tex->id = ++gl->textureId;
return tex;
}
static struct GLNVGtexture* glnvg__findTexture(struct GLNVGcontext* gl, int id)
{
int i;
for (i = 0; i < gl->ntextures; i++)
if (gl->textures[i].id == id)
return &gl->textures[i];
return NULL;
}
static int glnvg__deleteTexture(struct GLNVGcontext* gl, int id)
{
int i;
for (i = 0; i < gl->ntextures; i++) {
if (gl->textures[i].id == id) {
if (gl->textures[i].tex != 0)
glDeleteTextures(1, &gl->textures[i].tex);
memset(&gl->textures[i], 0, sizeof(gl->textures[i]));
return 1;
}
}
return 0;
}
static void glnvg__dumpShaderError(GLuint shader, const char* name, const char* type)
{
char str[512+1];
int len = 0;
glGetShaderInfoLog(shader, 512, &len, str);
if (len > 512) len = 512;
str[len] = '\0';
printf("Shader %s/%s error:\n%s\n", name, type, str);
}
static void glnvg__dumpProgramError(GLuint prog, const char* name)
{
char str[512+1];
int len = 0;
glGetProgramInfoLog(prog, 512, &len, str);
if (len > 512) len = 512;
str[len] = '\0';
printf("Program %s error:\n%s\n", name, str);
}
static int glnvg__checkError(const char* str)
{
GLenum err = glGetError();
if (err != GL_NO_ERROR) {
printf("Error %08x after %s\n", err, str);
return 1;
}
return 0;
}
static int glnvg__createShader(struct GLNVGshader* shader, const char* name, const char* vshader, const char* fshader)
{
GLint status;
GLuint prog, vert, frag;
memset(shader, 0, sizeof(*shader));
prog = glCreateProgram();
vert = glCreateShader(GL_VERTEX_SHADER);
frag = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(vert, 1, &vshader, 0);
glShaderSource(frag, 1, &fshader, 0);
glCompileShader(vert);
glGetShaderiv(vert, GL_COMPILE_STATUS, &status);
if (status != GL_TRUE) {
glnvg__dumpShaderError(vert, name, "vert");
return 0;
}
glCompileShader(frag);
glGetShaderiv(frag, GL_COMPILE_STATUS, &status);
if (status != GL_TRUE) {
glnvg__dumpShaderError(frag, name, "frag");
return 0;
}
glAttachShader(prog, vert);
glAttachShader(prog, frag);
glBindAttribLocation(prog, 0, "vertex");
glBindAttribLocation(prog, 1, "tcoord");
glBindAttribLocation(prog, 2, "color");
glLinkProgram(prog);
glGetProgramiv(prog, GL_LINK_STATUS, &status);
if (status != GL_TRUE) {
glnvg__dumpProgramError(prog, name);
return 0;
}
shader->prog = prog;
shader->vert = vert;
shader->frag = frag;
return 1;
}
static void glnvg__deleteShader(struct GLNVGshader* shader)
{
if (shader->prog != 0)
glDeleteProgram(shader->prog);
if (shader->vert != 0)
glDeleteShader(shader->vert);
if (shader->frag != 0)
glDeleteShader(shader->frag);
}
static void glnvg__getUniforms(struct GLNVGshader* shader)
{
shader->loc[GLNVG_LOC_VIEWSIZE] = glGetUniformLocation(shader->prog, "viewSize");
shader->loc[GLNVG_LOC_SCISSORMAT] = glGetUniformLocation(shader->prog, "scissorMat");
shader->loc[GLNVG_LOC_SCISSOREXT] = glGetUniformLocation(shader->prog, "scissorExt");
shader->loc[GLNVG_LOC_SCISSORSCALE] = glGetUniformLocation(shader->prog, "scissorScale");
shader->loc[GLNVG_LOC_PAINTMAT] = glGetUniformLocation(shader->prog, "paintMat");
shader->loc[GLNVG_LOC_EXTENT] = glGetUniformLocation(shader->prog, "extent");
shader->loc[GLNVG_LOC_RADIUS] = glGetUniformLocation(shader->prog, "radius");
shader->loc[GLNVG_LOC_FEATHER] = glGetUniformLocation(shader->prog, "feather");
shader->loc[GLNVG_LOC_INNERCOL] = glGetUniformLocation(shader->prog, "innerCol");
shader->loc[GLNVG_LOC_OUTERCOL] = glGetUniformLocation(shader->prog, "outerCol");
shader->loc[GLNVG_LOC_STROKEMULT] = glGetUniformLocation(shader->prog, "strokeMult");
shader->loc[GLNVG_LOC_TEX] = glGetUniformLocation(shader->prog, "tex");
shader->loc[GLNVG_LOC_TEXTYPE] = glGetUniformLocation(shader->prog, "texType");
shader->loc[GLNVG_LOC_TYPE] = glGetUniformLocation(shader->prog, "type");
}
static int glnvg__renderCreate(void* uptr)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
static const char* fillVertShader =
#ifdef NANOVG_GLES2
"#version 100\n"
"precision mediump float;\n"
#endif
"uniform vec2 viewSize;\n"
"attribute vec2 vertex;\n"
"attribute vec2 tcoord;\n"
"attribute vec4 color;\n"
"varying vec2 ftcoord;\n"
"varying vec4 fcolor;\n"
"varying vec2 fpos;\n"
"void main(void) {\n"
" ftcoord = tcoord;\n"
" fcolor = color;\n"
" fpos = vertex;\n"
" gl_Position = vec4(2.0*vertex.x/viewSize.x - 1.0, 1.0 - 2.0*vertex.y/viewSize.y, 0, 1);\n"
"}\n";
static const char* fillFragShaderEdgeAA =
#ifdef NANOVG_GLES2
"#version 100\n"
"precision mediump float;\n"
#endif
"uniform mat3 scissorMat;\n"
"uniform vec2 scissorExt;\n"
"uniform vec2 scissorScale;\n"
"uniform mat3 paintMat;\n"
"uniform vec2 extent;\n"
"uniform float radius;\n"
"uniform float feather;\n"
"uniform vec4 innerCol;\n"
"uniform vec4 outerCol;\n"
"uniform float strokeMult;\n"
"uniform sampler2D tex;\n"
"uniform int texType;\n"
"uniform int type;\n"
"varying vec2 ftcoord;\n"
"varying vec4 fcolor;\n"
"varying vec2 fpos;\n"
"\n"
"float sdroundrect(vec2 pt, vec2 ext, float rad) {\n"
" vec2 ext2 = ext - vec2(rad,rad);\n"
" vec2 d = abs(pt) - ext2;\n"
" return min(max(d.x,d.y),0.0) + length(max(d,0.0)) - rad;\n"
"}\n"
"\n"
"// Scissoring\n"
"float scissorMask(vec2 p) {\n"
" vec2 sc = (abs((scissorMat * vec3(p,1.0)).xy) - scissorExt);\n"
" sc = vec2(0.5,0.5) - sc * scissorScale;\n"
" return clamp(sc.x,0.0,1.0) * clamp(sc.y,0.0,1.0);\n"
"}\n"
"\n"
"// Stroke - from [0..1] to clipped pyramid, where the slope is 1px.\n"
"float strokeMask() {\n"
" return min(1.0, (1.0-abs(ftcoord.x*2.0-1.0))*strokeMult) * ftcoord.y;\n"
"}\n"
"\n"
"void main(void) {\n"
" if (type == 0) {\n"
" float scissor = scissorMask(fpos);\n"
" float strokeAlpha = strokeMask();\n"
" // Calculate gradient color using box gradient\n"
" vec2 pt = (paintMat * vec3(fpos,1.0)).xy;\n"
" float d = clamp((sdroundrect(pt, extent, radius) + feather*0.5) / feather, 0.0, 1.0);\n"
" vec4 color = mix(innerCol,outerCol,d);\n"
" // Combine alpha\n"
" color.w *= strokeAlpha * scissor;\n"
" gl_FragColor = color;\n"
" } else if (type == 1) {\n"
" float scissor = scissorMask(fpos);\n"
" float strokeAlpha = strokeMask();\n"
" // Calculate color fron texture\n"
" vec2 pt = (paintMat * vec3(fpos,1.0)).xy / extent;\n"
" vec4 color = texture2D(tex, pt);\n"
" color = texType == 0 ? color : vec4(1,1,1,color.x);\n"
" // Combine alpha\n"
" color.w *= strokeAlpha * scissor;\n"
" gl_FragColor = color;\n"
" } else if (type == 2) {\n"
" gl_FragColor = vec4(1,1,1,1);\n"
" } else if (type == 3) {\n"
" vec4 color = texture2D(tex, ftcoord);\n"
" color = texType == 0 ? color : vec4(1,1,1,color.x);\n"
" gl_FragColor = color * fcolor;\n"
" }\n"
"}\n";
static const char* fillFragShader =
#ifdef NANOVG_GLES2
"#version 100\n"
"precision mediump float;\n"
#endif
"uniform mat3 scissorMat;\n"
"uniform vec2 scissorExt;\n"
"uniform vec2 scissorScale;\n"
"uniform mat3 paintMat;\n"
"uniform vec2 extent;\n"
"uniform float radius;\n"
"uniform float feather;\n"
"uniform vec4 innerCol;\n"
"uniform vec4 outerCol;\n"
"uniform float strokeMult;\n"
"uniform sampler2D tex;\n"
"uniform int texType;\n"
"uniform int type;\n"
"varying vec2 ftcoord;\n"
"varying vec4 fcolor;\n"
"varying vec2 fpos;\n"
"\n"
"float sdroundrect(vec2 pt, vec2 ext, float rad) {\n"
" vec2 ext2 = ext - vec2(rad,rad);\n"
" vec2 d = abs(pt) - ext2;\n"
" return min(max(d.x,d.y),0.0) + length(max(d,0.0)) - rad;\n"
"}\n"
"\n"
"// Scissoring\n"
"float scissorMask(vec2 p) {\n"
" vec2 sc = (abs((scissorMat * vec3(p,1.0)).xy) - scissorExt);\n"
" sc = vec2(0.5,0.5) - sc * scissorScale;\n"
" return clamp(sc.x,0.0,1.0) * clamp(sc.y,0.0,1.0);\n"
"}\n"
"\n"
"void main(void) {\n"
" if (type == 0) {\n"
" float scissor = scissorMask(fpos);\n"
" // Calculate gradient color using box gradient\n"
" vec2 pt = (paintMat * vec3(fpos,1.0)).xy;\n"
" float d = clamp((sdroundrect(pt, extent, radius) + feather*0.5) / feather, 0.0, 1.0);\n"
" vec4 color = mix(innerCol,outerCol,d);\n"
" // Combine alpha\n"
" color.w *= scissor;\n"
" gl_FragColor = color;\n"
" } else if (type == 1) {\n"
" float scissor = scissorMask(fpos);\n"
" // Calculate color fron texture\n"
" vec2 pt = (paintMat * vec3(fpos,1.0)).xy / extent;\n"
" vec4 color = texture2D(tex, pt);\n"
" color = texType == 0 ? color : vec4(1,1,1,color.x);\n"
" // Combine alpha\n"
" color.w *= scissor;\n"
" gl_FragColor = color;\n"
" } else if (type == 2) {\n"
" gl_FragColor = vec4(1,1,1,1);\n"
" } else if (type == 3) {\n"
" vec4 color = texture2D(tex, ftcoord);\n"
" color = texType == 0 ? color : vec4(1,1,1,color.x);\n"
" gl_FragColor = color * fcolor;\n"
" }\n"
"}\n";
glnvg__checkError("init");
if (gl->edgeAntiAlias) {
if (glnvg__createShader(&gl->shader, "shader", fillVertShader, fillFragShaderEdgeAA) == 0)
return 0;
} else {
if (glnvg__createShader(&gl->shader, "shader", fillVertShader, fillFragShader) == 0)
return 0;
}
glnvg__checkError("uniform locations");
glnvg__getUniforms(&gl->shader);
// Create dynamic vertex array
glGenBuffers(1, &gl->vertBuf);
glnvg__checkError("done");
return 1;
}
static int glnvg__renderCreateTexture(void* uptr, int type, int w, int h, const unsigned char* data)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
struct GLNVGtexture* tex = glnvg__allocTexture(gl);
if (tex == NULL) return 0;
glGenTextures(1, &tex->tex);
tex->width = w;
tex->height = h;
tex->type = type;
glBindTexture(GL_TEXTURE_2D, tex->tex);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
if (type == NVG_TEXTURE_RGBA)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
else
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, w, h, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
if (glnvg__checkError("create tex"))
return 0;
return tex->id;
}
static int glnvg__renderDeleteTexture(void* uptr, int image)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
return glnvg__deleteTexture(gl, image);
}
static int glnvg__renderUpdateTexture(void* uptr, int image, int x, int y, int w, int h, const unsigned char* data)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
struct GLNVGtexture* tex = glnvg__findTexture(gl, image);
if (tex == NULL) return 0;
glBindTexture(GL_TEXTURE_2D, tex->tex);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
#ifdef NANOVG_GLES2
// No support for all of unpack, need to update a whole row at a time.
if (tex->type == NVG_TEXTURE_RGBA)
data += y*tex->width*4;
else
data += y*tex->width;
x = 0;
w = tex->width;
#else
glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->width);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, x);
glPixelStorei(GL_UNPACK_SKIP_ROWS, y);
#endif
if (tex->type == NVG_TEXTURE_RGBA)
glTexSubImage2D(GL_TEXTURE_2D, 0, x,y, w,h, GL_RGBA, GL_UNSIGNED_BYTE, data);
else
glTexSubImage2D(GL_TEXTURE_2D, 0, x,y, w,h, GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
return 1;
}
static int glnvg__renderGetTextureSize(void* uptr, int image, int* w, int* h)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
struct GLNVGtexture* tex = glnvg__findTexture(gl, image);
if (tex == NULL) return 0;
*w = tex->width;
*h = tex->height;
return 1;
}
static void glnvg__xformIdentity(float* t)
{
t[0] = 1.0f; t[1] = 0.0f;
t[2] = 0.0f; t[3] = 1.0f;
t[4] = 0.0f; t[5] = 0.0f;
}
static void glnvg__xformInverse(float* inv, float* t)
{
double invdet, det = (double)t[0] * t[3] - (double)t[2] * t[1];
if (det > -1e-6 && det < 1e-6) {
glnvg__xformIdentity(t);
return;
}
invdet = 1.0 / det;
inv[0] = (float)(t[3] * invdet);
inv[2] = (float)(-t[2] * invdet);
inv[4] = (float)(((double)t[2] * t[5] - (double)t[3] * t[4]) * invdet);
inv[1] = (float)(-t[1] * invdet);
inv[3] = (float)(t[0] * invdet);
inv[5] = (float)(((double)t[1] * t[4] - (double)t[0] * t[5]) * invdet);
}
static void glnvg__xformToMat3x3(float* m3, float* t)
{
m3[0] = t[0];
m3[1] = t[1];
m3[2] = 0.0f;
m3[3] = t[2];
m3[4] = t[3];
m3[5] = 0.0f;
m3[6] = t[4];
m3[7] = t[5];
m3[8] = 1.0f;
}
static int glnvg__setupPaint(struct GLNVGcontext* gl, struct NVGpaint* paint, struct NVGscissor* scissor, float width, float fringe)
{
struct NVGcolor innerCol;
struct NVGcolor outerCol;
struct GLNVGtexture* tex = NULL;
float invxform[6], paintMat[9], scissorMat[9];
float scissorx = 0, scissory = 0;
float scissorsx = 0, scissorsy = 0;
innerCol = paint->innerColor;
outerCol = paint->outerColor;
glnvg__xformInverse(invxform, paint->xform);
glnvg__xformToMat3x3(paintMat, invxform);
if (scissor->extent[0] < 0.5f || scissor->extent[1] < 0.5f) {
memset(scissorMat, 0, sizeof(scissorMat));
scissorx = 1.0f;
scissory = 1.0f;
scissorsx = 1.0f;
scissorsy = 1.0f;
} else {
glnvg__xformInverse(invxform, scissor->xform);
glnvg__xformToMat3x3(scissorMat, invxform);
scissorx = scissor->extent[0];
scissory = scissor->extent[1];
scissorsx = sqrtf(scissor->xform[0]*scissor->xform[0] + scissor->xform[2]*scissor->xform[2]) / fringe;
scissorsy = sqrtf(scissor->xform[1]*scissor->xform[1] + scissor->xform[3]*scissor->xform[3]) / fringe;
}
if (paint->image != 0) {
tex = glnvg__findTexture(gl, paint->image);
if (tex == NULL) return 0;
glUseProgram(gl->shader.prog);
glUniform1i(gl->shader.loc[GLNVG_LOC_TYPE], NSVG_SHADER_FILLIMG);
glUniform2f(gl->shader.loc[GLNVG_LOC_VIEWSIZE], gl->viewWidth, gl->viewHeight);
glUniformMatrix3fv(gl->shader.loc[GLNVG_LOC_SCISSORMAT], 1, GL_FALSE, scissorMat);
glUniform2f(gl->shader.loc[GLNVG_LOC_SCISSOREXT], scissorx, scissory);
glUniform2f(gl->shader.loc[GLNVG_LOC_SCISSORSCALE], scissorsx, scissorsy);
glUniformMatrix3fv(gl->shader.loc[GLNVG_LOC_PAINTMAT], 1, GL_FALSE, paintMat);
glUniform2f(gl->shader.loc[GLNVG_LOC_EXTENT], paint->extent[0], paint->extent[1]);
glUniform1f(gl->shader.loc[GLNVG_LOC_STROKEMULT], (width*0.5f + fringe*0.5f)/fringe);
glUniform1i(gl->shader.loc[GLNVG_LOC_TEX], 0);
glUniform1i(gl->shader.loc[GLNVG_LOC_TEXTYPE], tex->type == NVG_TEXTURE_RGBA ? 0 : 1);
glnvg__checkError("tex paint loc");
glBindTexture(GL_TEXTURE_2D, tex->tex);
glnvg__checkError("tex paint tex");
} else {
glUseProgram(gl->shader.prog);
glUniform1i(gl->shader.loc[GLNVG_LOC_TYPE], NSVG_SHADER_FILLGRAD);
glUniform2f(gl->shader.loc[GLNVG_LOC_VIEWSIZE], gl->viewWidth, gl->viewHeight);
glUniformMatrix3fv(gl->shader.loc[GLNVG_LOC_SCISSORMAT], 1, GL_FALSE, scissorMat);
glUniform2f(gl->shader.loc[GLNVG_LOC_SCISSOREXT], scissorx, scissory);
glUniform2f(gl->shader.loc[GLNVG_LOC_SCISSORSCALE], scissorsx, scissorsy);
glUniformMatrix3fv(gl->shader.loc[GLNVG_LOC_PAINTMAT], 1, GL_FALSE, paintMat);
glUniform2f(gl->shader.loc[GLNVG_LOC_EXTENT], paint->extent[0], paint->extent[1]);
glUniform1f(gl->shader.loc[GLNVG_LOC_RADIUS], paint->radius);
glUniform1f(gl->shader.loc[GLNVG_LOC_FEATHER], paint->feather);
glUniform4fv(gl->shader.loc[GLNVG_LOC_INNERCOL], 1, innerCol.rgba);
glUniform4fv(gl->shader.loc[GLNVG_LOC_OUTERCOL], 1, outerCol.rgba);
glUniform1f(gl->shader.loc[GLNVG_LOC_STROKEMULT], (width*0.5f + fringe*0.5f)/fringe);
glnvg__checkError("grad paint loc");
}
return 1;
}
static void glnvg__renderViewport(void* uptr, int width, int height, int alphaBlend)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
gl->viewWidth = (float)width;
gl->viewHeight = (float)height;
glEnable(GL_BLEND);
glEnable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
if (alphaBlend == NVG_PREMULTIPLIED_ALPHA)
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
else
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
static void glnvg__renderFlush(void* uptr, int alphaBlend)
{
// struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
NVG_NOTUSED(uptr);
NVG_NOTUSED(alphaBlend);
}
static int glnvg__maxVertCount(const struct NVGpath* paths, int npaths)
{
int i, count = 0;
for (i = 0; i < npaths; i++) {
count += paths[i].nfill;
count += paths[i].nstroke;
}
return count;
}
static void glnvg__uploadPaths(const struct NVGpath* paths, int npaths)
{
const struct NVGpath* path;
int i, n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
if (path->nfill > 0) {
glBufferSubData(GL_ARRAY_BUFFER, n*sizeof(struct NVGvertex), path->nfill * sizeof(struct NVGvertex), &path->fill[0].x);
n += path->nfill;
}
if (path->nstroke > 0) {
glBufferSubData(GL_ARRAY_BUFFER, n*sizeof(struct NVGvertex), path->nstroke * sizeof(struct NVGvertex), &path->stroke[0].x);
n += path->nstroke;
}
}
}
static void glnvg__renderFill(void* uptr, struct NVGpaint* paint, struct NVGscissor* scissor, float fringe,
const float* bounds, const struct NVGpath* paths, int npaths)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
const struct NVGpath* path;
int i, n, offset, maxCount;
if (gl->shader.prog == 0)
return;
maxCount = glnvg__maxVertCount(paths, npaths);
glBindBuffer(GL_ARRAY_BUFFER, gl->vertBuf);
glBufferData(GL_ARRAY_BUFFER, maxCount * sizeof(struct NVGvertex), NULL, GL_STREAM_DRAW);
glnvg__uploadPaths(paths, npaths);
if (npaths == 1 && paths[0].convex) {
glEnable(GL_CULL_FACE);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glnvg__setupPaint(gl, paint, scissor, fringe, fringe);
glDisable(GL_CULL_FACE);
n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
offset = n * sizeof(struct NVGvertex);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(size_t)offset);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(offset + 2*sizeof(float)));
glDrawArrays(GL_TRIANGLE_FAN, 0, path->nfill);
n += path->nfill + path->nstroke;
}
glEnable(GL_CULL_FACE);
if (gl->edgeAntiAlias) {
// Draw fringes
n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
offset = (n + path->nfill) * sizeof(struct NVGvertex);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(size_t)offset);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(offset + 2*sizeof(float)));
glDrawArrays(GL_TRIANGLE_STRIP, 0, path->nstroke);
n += path->nfill + path->nstroke;
}
}
glUseProgram(0);
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
} else {
float quad[6*2] = {
bounds[0], bounds[3], bounds[2], bounds[3], bounds[2], bounds[1],
bounds[0], bounds[3], bounds[2], bounds[1], bounds[0], bounds[1],
};
glEnable(GL_CULL_FACE);
glBindBuffer(GL_ARRAY_BUFFER, gl->vertBuf);
// Draw shapes
glDisable(GL_BLEND);
glEnable(GL_STENCIL_TEST);
glStencilMask(0xff);
glStencilFunc(GL_ALWAYS, 0, ~0U);
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glUseProgram(gl->shader.prog);
glUniform1i(gl->shader.loc[GLNVG_LOC_TYPE], NSVG_SHADER_SIMPLE);
glUniform2f(gl->shader.loc[GLNVG_LOC_VIEWSIZE], gl->viewWidth, gl->viewHeight);
glnvg__checkError("fill solid loc");
glEnableVertexAttribArray(0);
glStencilOpSeparate(GL_FRONT, GL_KEEP, GL_KEEP, GL_INCR_WRAP);
glStencilOpSeparate(GL_BACK, GL_KEEP, GL_KEEP, GL_DECR_WRAP);
glDisable(GL_CULL_FACE);
n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
offset = n * sizeof(struct NVGvertex);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(size_t)offset);
glDrawArrays(GL_TRIANGLE_FAN, 0, path->nfill);
n += path->nfill + path->nstroke;
}
glEnable(GL_CULL_FACE);
// Draw aliased off-pixels
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glEnable(GL_BLEND);
glEnableVertexAttribArray(1);
glnvg__setupPaint(gl, paint, scissor, fringe, fringe);
if (gl->edgeAntiAlias) {
glStencilFunc(GL_EQUAL, 0x00, 0xff);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
// Draw fringes
n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
offset = (n + path->nfill) * sizeof(struct NVGvertex);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(size_t)offset);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(offset + 2*sizeof(float)));
glDrawArrays(GL_TRIANGLE_STRIP, 0, path->nstroke);
n += path->nfill + path->nstroke;
}
}
// Draw fill
glStencilFunc(GL_NOTEQUAL, 0x0, 0xff);
glStencilOp(GL_ZERO, GL_ZERO, GL_ZERO);
glDisableVertexAttribArray(1);
glBufferSubData(GL_ARRAY_BUFFER, 0, 6 * 2*sizeof(float), quad);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2*sizeof(float), (const GLvoid*)0);
glVertexAttrib2f(1, 0.5f, 1.0f);
glDrawArrays(GL_TRIANGLES, 0, 6);
glUseProgram(0);
glDisableVertexAttribArray(0);
glDisable(GL_STENCIL_TEST);
}
}
static void glnvg__renderStroke(void* uptr, struct NVGpaint* paint, struct NVGscissor* scissor, float fringe,
float width, const struct NVGpath* paths, int npaths)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
const struct NVGpath* path;
int i, n, offset, maxCount;
if (gl->shader.prog == 0)
return;
glnvg__setupPaint(gl, paint, scissor, width, fringe);
glEnable(GL_CULL_FACE);
maxCount = glnvg__maxVertCount(paths, npaths);
glBindBuffer(GL_ARRAY_BUFFER, gl->vertBuf);
glBufferData(GL_ARRAY_BUFFER, maxCount * sizeof(struct NVGvertex), NULL, GL_STREAM_DRAW);
glnvg__uploadPaths(paths, npaths);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
// Draw Strokes
n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
offset = (n + path->nfill) * sizeof(struct NVGvertex);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(size_t)offset);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(offset + 2*sizeof(float)));
glDrawArrays(GL_TRIANGLE_STRIP, 0, path->nstroke);
n += path->nfill + path->nstroke;
}
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
glUseProgram(0);
}
static void glnvg__renderTriangles(void* uptr, struct NVGpaint* paint, struct NVGscissor* scissor,
const struct NVGvertex* verts, int nverts)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
struct GLNVGtexture* tex = glnvg__findTexture(gl, paint->image);
struct NVGcolor color;
NVG_NOTUSED(scissor);
if (gl->shader.prog == 0)
return;
if (tex != NULL) {
glBindTexture(GL_TEXTURE_2D, tex->tex);
}
glUseProgram(gl->shader.prog);
glUniform1i(gl->shader.loc[GLNVG_LOC_TYPE], NSVG_SHADER_IMG);
glUniform2f(gl->shader.loc[GLNVG_LOC_VIEWSIZE], gl->viewWidth, gl->viewHeight);
glUniform1i(gl->shader.loc[GLNVG_LOC_TEX], 0);
glUniform1i(gl->shader.loc[GLNVG_LOC_TEXTYPE], (tex != NULL && tex->type == NVG_TEXTURE_RGBA) ? 0 : 1);
glnvg__checkError("tris solid img loc");
glBindBuffer(GL_ARRAY_BUFFER, gl->vertBuf);
glBufferData(GL_ARRAY_BUFFER, nverts * sizeof(struct NVGvertex), verts, GL_STREAM_DRAW);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)0);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(2 * sizeof(float)));
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
color = paint->innerColor;
glVertexAttrib4fv(2, color.rgba);
glDrawArrays(GL_TRIANGLES, 0, nverts);
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
}
static void glnvg__renderDelete(void* uptr)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
int i;
if (gl == NULL) return;
glnvg__deleteShader(&gl->shader);
for (i = 0; i < gl->ntextures; i++) {
if (gl->textures[i].tex != 0)
glDeleteTextures(1, &gl->textures[i].tex);
}
free(gl->textures);
free(gl);
}
#ifdef NANOVG_GLES2
struct NVGcontext* nvgCreateGLES2(int atlasw, int atlash, int edgeaa)
#else
struct NVGcontext* nvgCreateGL2(int atlasw, int atlash, int edgeaa)
#endif
{
struct NVGparams params;
struct NVGcontext* ctx = NULL;
struct GLNVGcontext* gl = (struct GLNVGcontext*)malloc(sizeof(struct GLNVGcontext));
if (gl == NULL) goto error;
memset(gl, 0, sizeof(struct GLNVGcontext));
memset(¶ms, 0, sizeof(params));
params.renderCreate = glnvg__renderCreate;
params.renderCreateTexture = glnvg__renderCreateTexture;
params.renderDeleteTexture = glnvg__renderDeleteTexture;
params.renderUpdateTexture = glnvg__renderUpdateTexture;
params.renderGetTextureSize = glnvg__renderGetTextureSize;
params.renderViewport = glnvg__renderViewport;
params.renderFlush = glnvg__renderFlush;
params.renderFill = glnvg__renderFill;
params.renderStroke = glnvg__renderStroke;
params.renderTriangles = glnvg__renderTriangles;
params.renderDelete = glnvg__renderDelete;
params.userPtr = gl;
params.atlasWidth = atlasw;
params.atlasHeight = atlash;
params.edgeAntiAlias = edgeaa;
gl->edgeAntiAlias = edgeaa;
ctx = nvgCreateInternal(¶ms);
if (ctx == NULL) goto error;
return ctx;
error:
// 'gl' is freed by nvgDeleteInternal.
if (ctx != NULL) nvgDeleteInternal(ctx);
return NULL;
}
#ifdef NANOVG_GLES2
void nvgDeleteGLES2(struct NVGcontext* ctx)
#else
void nvgDeleteGL2(struct NVGcontext* ctx)
#endif
{
nvgDeleteInternal(ctx);
}
#endif
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
obsolete/nanovg_gl3.h | C/C++ Header | //
// Copyright (c) 2009-2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#ifndef NANOVG_GL3_H
#define NANOVG_GL3_H
#ifdef __cplusplus
extern "C" {
#endif
#define NVG_ANTIALIAS 1
#ifdef NANOVG_GLES3_IMPLEMENTATION
# ifndef NANOVG_GLES3
# define NANOVG_GLES3
# endif
# ifndef NANOVG_GL3_IMPLEMENTATION
# define NANOVG_GL3_IMPLEMENTATION
# endif
#endif
#ifdef NANOVG_GLES3
struct NVGcontext* nvgCreateGLES3(int atlasw, int atlash, int edgeaa);
void nvgDeleteGLES3(struct NVGcontext* ctx);
#else
struct NVGcontext* nvgCreateGL3(int atlasw, int atlash, int edgeaa);
void nvgDeleteGL3(struct NVGcontext* ctx);
#endif
#ifdef __cplusplus
}
#endif
#endif
#ifdef NANOVG_GL3_IMPLEMENTATION
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "nanovg.h"
enum GLNVGuniformLoc {
GLNVG_LOC_VIEWSIZE,
GLNVG_LOC_SCISSORMAT,
GLNVG_LOC_SCISSOREXT,
GLNVG_LOC_SCISSORSCALE,
GLNVG_LOC_PAINTMAT,
GLNVG_LOC_EXTENT,
GLNVG_LOC_RADIUS,
GLNVG_LOC_FEATHER,
GLNVG_LOC_INNERCOL,
GLNVG_LOC_OUTERCOL,
GLNVG_LOC_STROKEMULT,
GLNVG_LOC_TEX,
GLNVG_LOC_TEXTYPE,
GLNVG_LOC_TYPE,
GLNVG_MAX_LOCS
};
enum GLNVGshaderType {
NSVG_SHADER_FILLGRAD,
NSVG_SHADER_FILLIMG,
NSVG_SHADER_SIMPLE,
NSVG_SHADER_IMG
};
struct GLNVGshader {
GLuint prog;
GLuint frag;
GLuint vert;
GLint loc[GLNVG_MAX_LOCS];
};
struct GLNVGtexture {
int id;
GLuint tex;
int width, height;
int type;
};
struct GLNVGcontext {
struct GLNVGshader shader;
struct GLNVGtexture* textures;
float viewWidth, viewHeight;
int ntextures;
int ctextures;
int textureId;
GLuint vertArr;
GLuint vertBuf;
int edgeAntiAlias;
};
static struct GLNVGtexture* glnvg__allocTexture(struct GLNVGcontext* gl)
{
struct GLNVGtexture* tex = NULL;
int i;
for (i = 0; i < gl->ntextures; i++) {
if (gl->textures[i].id == 0) {
tex = &gl->textures[i];
break;
}
}
if (tex == NULL) {
if (gl->ntextures+1 > gl->ctextures) {
gl->ctextures = (gl->ctextures == 0) ? 2 : gl->ctextures*2;
gl->textures = (struct GLNVGtexture*)realloc(gl->textures, sizeof(struct GLNVGtexture)*gl->ctextures);
if (gl->textures == NULL) return NULL;
}
tex = &gl->textures[gl->ntextures++];
}
memset(tex, 0, sizeof(*tex));
tex->id = ++gl->textureId;
return tex;
}
static struct GLNVGtexture* glnvg__findTexture(struct GLNVGcontext* gl, int id)
{
int i;
for (i = 0; i < gl->ntextures; i++)
if (gl->textures[i].id == id)
return &gl->textures[i];
return NULL;
}
static int glnvg__deleteTexture(struct GLNVGcontext* gl, int id)
{
int i;
for (i = 0; i < gl->ntextures; i++) {
if (gl->textures[i].id == id) {
if (gl->textures[i].tex != 0)
glDeleteTextures(1, &gl->textures[i].tex);
memset(&gl->textures[i], 0, sizeof(gl->textures[i]));
return 1;
}
}
return 0;
}
static void glnvg__dumpShaderError(GLuint shader, const char* name, const char* type)
{
char str[512+1];
int len = 0;
glGetShaderInfoLog(shader, 512, &len, str);
if (len > 512) len = 512;
str[len] = '\0';
printf("Shader %s/%s error:\n%s\n", name, type, str);
}
static void glnvg__dumpProgramError(GLuint prog, const char* name)
{
char str[512+1];
int len = 0;
glGetProgramInfoLog(prog, 512, &len, str);
if (len > 512) len = 512;
str[len] = '\0';
printf("Program %s error:\n%s\n", name, str);
}
static int glnvg__checkError(const char* str)
{
GLenum err = glGetError();
if (err != GL_NO_ERROR) {
printf("Error %08x after %s\n", err, str);
return 1;
}
return 0;
}
static int glnvg__createShader(struct GLNVGshader* shader, const char* name, const char* vshader, const char* fshader)
{
GLint status;
GLuint prog, vert, frag;
memset(shader, 0, sizeof(*shader));
prog = glCreateProgram();
vert = glCreateShader(GL_VERTEX_SHADER);
frag = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(vert, 1, &vshader, 0);
glShaderSource(frag, 1, &fshader, 0);
glCompileShader(vert);
glGetShaderiv(vert, GL_COMPILE_STATUS, &status);
if (status != GL_TRUE) {
glnvg__dumpShaderError(vert, name, "vert");
return 0;
}
glCompileShader(frag);
glGetShaderiv(frag, GL_COMPILE_STATUS, &status);
if (status != GL_TRUE) {
glnvg__dumpShaderError(frag, name, "frag");
return 0;
}
glAttachShader(prog, vert);
glAttachShader(prog, frag);
glBindAttribLocation(prog, 0, "vertex");
glBindAttribLocation(prog, 1, "tcoord");
glBindAttribLocation(prog, 2, "color");
glLinkProgram(prog);
glGetProgramiv(prog, GL_LINK_STATUS, &status);
if (status != GL_TRUE) {
glnvg__dumpProgramError(prog, name);
return 0;
}
shader->prog = prog;
shader->vert = vert;
shader->frag = frag;
return 1;
}
static void glnvg__deleteShader(struct GLNVGshader* shader)
{
if (shader->prog != 0)
glDeleteProgram(shader->prog);
if (shader->vert != 0)
glDeleteShader(shader->vert);
if (shader->frag != 0)
glDeleteShader(shader->frag);
}
static void glnvg__getUniforms(struct GLNVGshader* shader)
{
shader->loc[GLNVG_LOC_VIEWSIZE] = glGetUniformLocation(shader->prog, "viewSize");
shader->loc[GLNVG_LOC_SCISSORMAT] = glGetUniformLocation(shader->prog, "scissorMat");
shader->loc[GLNVG_LOC_SCISSOREXT] = glGetUniformLocation(shader->prog, "scissorExt");
shader->loc[GLNVG_LOC_SCISSORSCALE] = glGetUniformLocation(shader->prog, "scissorScale");
shader->loc[GLNVG_LOC_PAINTMAT] = glGetUniformLocation(shader->prog, "paintMat");
shader->loc[GLNVG_LOC_EXTENT] = glGetUniformLocation(shader->prog, "extent");
shader->loc[GLNVG_LOC_RADIUS] = glGetUniformLocation(shader->prog, "radius");
shader->loc[GLNVG_LOC_FEATHER] = glGetUniformLocation(shader->prog, "feather");
shader->loc[GLNVG_LOC_INNERCOL] = glGetUniformLocation(shader->prog, "innerCol");
shader->loc[GLNVG_LOC_OUTERCOL] = glGetUniformLocation(shader->prog, "outerCol");
shader->loc[GLNVG_LOC_STROKEMULT] = glGetUniformLocation(shader->prog, "strokeMult");
shader->loc[GLNVG_LOC_TEX] = glGetUniformLocation(shader->prog, "tex");
shader->loc[GLNVG_LOC_TEXTYPE] = glGetUniformLocation(shader->prog, "texType");
shader->loc[GLNVG_LOC_TYPE] = glGetUniformLocation(shader->prog, "type");
}
static int glnvg__renderCreate(void* uptr)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
static const char* fillVertShader =
#ifdef NANOVG_GLES3
"#version 300 es\n"
"precision mediump float;\n"
#else
"#version 150 core\n"
#endif
"uniform vec2 viewSize;\n"
"in vec2 vertex;\n"
"in vec2 tcoord;\n"
"in vec4 color;\n"
"out vec2 ftcoord;\n"
"out vec4 fcolor;\n"
"out vec2 fpos;\n"
"void main(void) {\n"
" ftcoord = tcoord;\n"
" fcolor = color;\n"
" fpos = vertex;\n"
" gl_Position = vec4(2.0*vertex.x/viewSize.x - 1.0, 1.0 - 2.0*vertex.y/viewSize.y, 0, 1);\n"
"}\n";
static const char* fillFragShaderEdgeAA =
#ifdef NANOVG_GLES3
"#version 300 es\n"
"precision mediump float;\n"
#else
"#version 150 core\n"
#endif
"uniform mat3 scissorMat;\n"
"uniform vec2 scissorExt;\n"
"uniform vec2 scissorScale;\n"
"uniform mat3 paintMat;\n"
"uniform vec2 extent;\n"
"uniform float radius;\n"
"uniform float feather;\n"
"uniform vec4 innerCol;\n"
"uniform vec4 outerCol;\n"
"uniform float strokeMult;\n"
"uniform sampler2D tex;\n"
"uniform int texType;\n"
"uniform int type;\n"
"in vec2 ftcoord;\n"
"in vec4 fcolor;\n"
"in vec2 fpos;\n"
"out vec4 outColor;\n"
"\n"
"float sdroundrect(vec2 pt, vec2 ext, float rad) {\n"
" vec2 ext2 = ext - vec2(rad,rad);\n"
" vec2 d = abs(pt) - ext2;\n"
" return min(max(d.x,d.y),0.0) + length(max(d,0.0)) - rad;\n"
"}\n"
"\n"
"// Scissoring\n"
"float scissorMask(vec2 p) {\n"
" vec2 sc = (abs((scissorMat * vec3(p,1.0)).xy) - scissorExt);\n"
" sc = vec2(0.5,0.5) - sc * scissorScale;\n"
" return clamp(sc.x,0.0,1.0) * clamp(sc.y,0.0,1.0);\n"
"}\n"
"\n"
"// Stroke - from [0..1] to clipped pyramid, where the slope is 1px.\n"
"float strokeMask() {\n"
" return min(1.0, (1.0-abs(ftcoord.x*2.0-1.0))*strokeMult) * ftcoord.y;\n"
"}\n"
"\n"
"void main(void) {\n"
" if (type == 0) { // Gradient\n"
" float scissor = scissorMask(fpos);\n"
" float strokeAlpha = strokeMask();\n"
" // Calculate gradient color using box gradient\n"
" vec2 pt = (paintMat * vec3(fpos,1.0)).xy;\n"
" float d = clamp((sdroundrect(pt, extent, radius) + feather*0.5) / feather, 0.0, 1.0);\n"
" vec4 color = mix(innerCol,outerCol,d);\n"
" // Combine alpha\n"
" color.w *= strokeAlpha * scissor;\n"
" outColor = color;\n"
" } else if (type == 1) { // Image\n"
" float scissor = scissorMask(fpos);\n"
" float strokeAlpha = strokeMask();\n"
" // Calculate color fron texture\n"
" vec2 pt = (paintMat * vec3(fpos,1.0)).xy / extent;\n"
" vec4 color = texture(tex, pt);\n"
" color = texType == 0 ? color : vec4(1,1,1,color.x);\n"
" // Combine alpha\n"
" color.w *= strokeAlpha * scissor;\n"
" outColor = color;\n"
" } else if (type == 2) { // Stencil fill\n"
" outColor = vec4(1,1,1,1);\n"
" } else if (type == 3) { // Textured tris\n"
" vec4 color = texture(tex, ftcoord);\n"
" color = texType == 0 ? color : vec4(1,1,1,color.x);\n"
" outColor = color * fcolor;\n"
" }\n"
"}\n";
static const char* fillFragShader =
#ifdef NANOVG_GLES3
"#version 300 es\n"
"precision mediump float;\n"
#else
"#version 150 core\n"
#endif
"uniform mat3 scissorMat;\n"
"uniform vec2 scissorExt;\n"
"uniform vec2 scissorScale;\n"
"uniform mat3 paintMat;\n"
"uniform vec2 extent;\n"
"uniform float radius;\n"
"uniform float feather;\n"
"uniform vec4 innerCol;\n"
"uniform vec4 outerCol;\n"
"uniform float strokeMult;\n"
"uniform sampler2D tex;\n"
"uniform int texType;\n"
"uniform int type;\n"
"in vec2 ftcoord;\n"
"in vec4 fcolor;\n"
"in vec2 fpos;\n"
"out vec4 outColor;\n"
"\n"
"float sdroundrect(vec2 pt, vec2 ext, float rad) {\n"
" vec2 ext2 = ext - vec2(rad,rad);\n"
" vec2 d = abs(pt) - ext2;\n"
" return min(max(d.x,d.y),0.0) + length(max(d,0.0)) - rad;\n"
"}\n"
"\n"
"// Scissoring\n"
"float scissorMask(vec2 p) {\n"
" vec2 sc = (abs((scissorMat * vec3(p,1.0)).xy) - scissorExt);\n"
" sc = vec2(0.5,0.5) - sc * scissorScale;\n"
" return clamp(sc.x,0.0,1.0) * clamp(sc.y,0.0,1.0);\n"
"}\n"
"\n"
"void main(void) {\n"
" if (type == 0) { // Gradient\n"
" float scissor = scissorMask(fpos);\n"
" // Calculate gradient color using box gradient\n"
" vec2 pt = (paintMat * vec3(fpos,1.0)).xy;\n"
" float d = clamp((sdroundrect(pt, extent, radius) + feather*0.5) / feather, 0.0, 1.0);\n"
" vec4 color = mix(innerCol,outerCol,d);\n"
" // Combine alpha\n"
" color.w *= scissor;\n"
" outColor = color;\n"
" } else if (type == 1) { // Image\n"
" float scissor = scissorMask(fpos);\n"
" // Calculate color fron texture\n"
" vec2 pt = (paintMat * vec3(fpos,1.0)).xy / extent;\n"
" vec4 color = texture(tex, pt);\n"
" color = texType == 0 ? color : vec4(1,1,1,color.x);\n"
" // Combine alpha\n"
" color.w *= scissor;\n"
" outColor = color;\n"
" } else if (type == 2) { // Stencil fill\n"
" outColor = vec4(1,1,1,1);\n"
" } else if (type == 3) { // Textured tris\n"
" vec4 color = texture(tex, ftcoord);\n"
" color = texType == 0 ? color : vec4(1,1,1,color.x);\n"
" outColor = color * fcolor;\n"
" }\n"
"}\n";
glnvg__checkError("init");
if (gl->edgeAntiAlias) {
if (glnvg__createShader(&gl->shader, "shader", fillVertShader, fillFragShaderEdgeAA) == 0)
return 0;
} else {
if (glnvg__createShader(&gl->shader, "shader", fillVertShader, fillFragShader) == 0)
return 0;
}
glnvg__checkError("uniform locations");
glnvg__getUniforms(&gl->shader);
// Create dynamic vertex array
glGenVertexArrays(1, &gl->vertArr);
glGenBuffers(1, &gl->vertBuf);
glnvg__checkError("done");
return 1;
}
static int glnvg__renderCreateTexture(void* uptr, int type, int w, int h, const unsigned char* data)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
struct GLNVGtexture* tex = glnvg__allocTexture(gl);
if (tex == NULL) return 0;
glGenTextures(1, &tex->tex);
tex->width = w;
tex->height = h;
tex->type = type;
glBindTexture(GL_TEXTURE_2D, tex->tex);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->width);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
if (type == NVG_TEXTURE_RGBA)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
else
#ifdef NANOVG_GLES3
glTexImage2D(GL_TEXTURE_2D, 0, GL_R8, w, h, 0, GL_RED, GL_UNSIGNED_BYTE, data);
#else
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, w, h, 0, GL_RED, GL_UNSIGNED_BYTE, data);
#endif
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
if (glnvg__checkError("create tex"))
return 0;
return tex->id;
}
static int glnvg__renderDeleteTexture(void* uptr, int image)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
return glnvg__deleteTexture(gl, image);
}
static int glnvg__renderUpdateTexture(void* uptr, int image, int x, int y, int w, int h, const unsigned char* data)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
struct GLNVGtexture* tex = glnvg__findTexture(gl, image);
if (tex == NULL) return 0;
glBindTexture(GL_TEXTURE_2D, tex->tex);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->width);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, x);
glPixelStorei(GL_UNPACK_SKIP_ROWS, y);
if (tex->type == NVG_TEXTURE_RGBA)
glTexSubImage2D(GL_TEXTURE_2D, 0, x,y, w,h, GL_RGBA, GL_UNSIGNED_BYTE, data);
else
glTexSubImage2D(GL_TEXTURE_2D, 0, x,y, w,h, GL_RED, GL_UNSIGNED_BYTE, data);
return 1;
}
static int glnvg__renderGetTextureSize(void* uptr, int image, int* w, int* h)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
struct GLNVGtexture* tex = glnvg__findTexture(gl, image);
if (tex == NULL) return 0;
*w = tex->width;
*h = tex->height;
return 1;
}
static void glnvg__xformIdentity(float* t)
{
t[0] = 1.0f; t[1] = 0.0f;
t[2] = 0.0f; t[3] = 1.0f;
t[4] = 0.0f; t[5] = 0.0f;
}
static void glnvg__xformInverse(float* inv, float* t)
{
double invdet, det = (double)t[0] * t[3] - (double)t[2] * t[1];
if (det > -1e-6 && det < 1e-6) {
glnvg__xformIdentity(t);
return;
}
invdet = 1.0 / det;
inv[0] = (float)(t[3] * invdet);
inv[2] = (float)(-t[2] * invdet);
inv[4] = (float)(((double)t[2] * t[5] - (double)t[3] * t[4]) * invdet);
inv[1] = (float)(-t[1] * invdet);
inv[3] = (float)(t[0] * invdet);
inv[5] = (float)(((double)t[1] * t[4] - (double)t[0] * t[5]) * invdet);
}
static void glnvg__xformToMat3x3(float* m3, float* t)
{
m3[0] = t[0];
m3[1] = t[1];
m3[2] = 0.0f;
m3[3] = t[2];
m3[4] = t[3];
m3[5] = 0.0f;
m3[6] = t[4];
m3[7] = t[5];
m3[8] = 1.0f;
}
static int glnvg__setupPaint(struct GLNVGcontext* gl, struct NVGpaint* paint, struct NVGscissor* scissor, float width, float fringe)
{
struct NVGcolor innerCol;
struct NVGcolor outerCol;
struct GLNVGtexture* tex = NULL;
float invxform[6], paintMat[9], scissorMat[9];
float scissorx = 0, scissory = 0;
float scissorsx = 0, scissorsy = 0;
innerCol = paint->innerColor;
outerCol = paint->outerColor;
glnvg__xformInverse(invxform, paint->xform);
glnvg__xformToMat3x3(paintMat, invxform);
if (scissor->extent[0] < 0.5f || scissor->extent[1] < 0.5f) {
memset(scissorMat, 0, sizeof(scissorMat));
scissorx = 1.0f;
scissory = 1.0f;
scissorsx = 1.0f;
scissorsy = 1.0f;
} else {
glnvg__xformInverse(invxform, scissor->xform);
glnvg__xformToMat3x3(scissorMat, invxform);
scissorx = scissor->extent[0];
scissory = scissor->extent[1];
scissorsx = sqrtf(scissor->xform[0]*scissor->xform[0] + scissor->xform[2]*scissor->xform[2]) / fringe;
scissorsy = sqrtf(scissor->xform[1]*scissor->xform[1] + scissor->xform[3]*scissor->xform[3]) / fringe;
}
if (paint->image != 0) {
tex = glnvg__findTexture(gl, paint->image);
if (tex == NULL) return 0;
glUseProgram(gl->shader.prog);
glUniform1i(gl->shader.loc[GLNVG_LOC_TYPE], NSVG_SHADER_FILLIMG);
glUniform2f(gl->shader.loc[GLNVG_LOC_VIEWSIZE], gl->viewWidth, gl->viewHeight);
glUniformMatrix3fv(gl->shader.loc[GLNVG_LOC_SCISSORMAT], 1, GL_FALSE, scissorMat);
glUniform2f(gl->shader.loc[GLNVG_LOC_SCISSOREXT], scissorx, scissory);
glUniform2f(gl->shader.loc[GLNVG_LOC_SCISSORSCALE], scissorsx, scissorsy);
glUniformMatrix3fv(gl->shader.loc[GLNVG_LOC_PAINTMAT], 1, GL_FALSE, paintMat);
glUniform2f(gl->shader.loc[GLNVG_LOC_EXTENT], paint->extent[0], paint->extent[1]);
glUniform1f(gl->shader.loc[GLNVG_LOC_STROKEMULT], (width*0.5f + fringe*0.5f)/fringe);
glUniform1i(gl->shader.loc[GLNVG_LOC_TEX], 0);
glUniform1i(gl->shader.loc[GLNVG_LOC_TEXTYPE], tex->type == NVG_TEXTURE_RGBA ? 0 : 1);
glnvg__checkError("tex paint loc");
glBindTexture(GL_TEXTURE_2D, tex->tex);
glnvg__checkError("tex paint tex");
} else {
glUseProgram(gl->shader.prog);
glUniform1i(gl->shader.loc[GLNVG_LOC_TYPE], NSVG_SHADER_FILLGRAD);
glUniform2f(gl->shader.loc[GLNVG_LOC_VIEWSIZE], gl->viewWidth, gl->viewHeight);
glUniformMatrix3fv(gl->shader.loc[GLNVG_LOC_SCISSORMAT], 1, GL_FALSE, scissorMat);
glUniform2f(gl->shader.loc[GLNVG_LOC_SCISSOREXT], scissorx, scissory);
glUniform2f(gl->shader.loc[GLNVG_LOC_SCISSORSCALE], scissorsx, scissorsy);
glUniformMatrix3fv(gl->shader.loc[GLNVG_LOC_PAINTMAT], 1, GL_FALSE, paintMat);
glUniform2f(gl->shader.loc[GLNVG_LOC_EXTENT], paint->extent[0], paint->extent[1]);
glUniform1f(gl->shader.loc[GLNVG_LOC_RADIUS], paint->radius);
glUniform1f(gl->shader.loc[GLNVG_LOC_FEATHER], paint->feather);
glUniform4fv(gl->shader.loc[GLNVG_LOC_INNERCOL], 1, innerCol.rgba);
glUniform4fv(gl->shader.loc[GLNVG_LOC_OUTERCOL], 1, outerCol.rgba);
glUniform1f(gl->shader.loc[GLNVG_LOC_STROKEMULT], (width*0.5f + fringe*0.5f)/fringe);
glnvg__checkError("grad paint loc");
}
return 1;
}
static void glnvg__renderViewport(void* uptr, int width, int height, int alphaBlend)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
gl->viewWidth = (float)width;
gl->viewHeight = (float)height;
if (alphaBlend == NVG_PREMULTIPLIED_ALPHA)
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
else
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
static void glnvg__renderFlush(void* uptr, int alphaBlend)
{
// struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
NVG_NOTUSED(uptr);
NVG_NOTUSED(alphaBlend);
}
static int glnvg__maxVertCount(const struct NVGpath* paths, int npaths)
{
int i, count = 0;
for (i = 0; i < npaths; i++) {
count += paths[i].nfill;
count += paths[i].nstroke;
}
return count;
}
static void glnvg__uploadPaths(const struct NVGpath* paths, int npaths)
{
const struct NVGpath* path;
int i, n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
if (path->nfill > 0) {
glBufferSubData(GL_ARRAY_BUFFER, n*sizeof(struct NVGvertex), path->nfill * sizeof(struct NVGvertex), &path->fill[0].x);
n += path->nfill;
}
if (path->nstroke > 0) {
glBufferSubData(GL_ARRAY_BUFFER, n*sizeof(struct NVGvertex), path->nstroke * sizeof(struct NVGvertex), &path->stroke[0].x);
n += path->nstroke;
}
}
}
static void glnvg__renderFill(void* uptr, struct NVGpaint* paint, struct NVGscissor* scissor, float fringe,
const float* bounds, const struct NVGpath* paths, int npaths)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
const struct NVGpath* path;
int i, n, offset, maxCount;
if (gl->shader.prog == 0)
return;
maxCount = glnvg__maxVertCount(paths, npaths);
glBindVertexArray(gl->vertArr);
glBindBuffer(GL_ARRAY_BUFFER, gl->vertBuf);
glBufferData(GL_ARRAY_BUFFER, maxCount * sizeof(struct NVGvertex), NULL, GL_STREAM_DRAW);
glnvg__uploadPaths(paths, npaths);
if (npaths == 1 && paths[0].convex) {
glEnable(GL_CULL_FACE);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glnvg__setupPaint(gl, paint, scissor, fringe, fringe);
glDisable(GL_CULL_FACE);
n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
offset = n * sizeof(struct NVGvertex);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(size_t)offset);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(offset + 2*sizeof(float)));
glDrawArrays(GL_TRIANGLE_FAN, 0, path->nfill);
n += path->nfill + path->nstroke;
}
glEnable(GL_CULL_FACE);
if (gl->edgeAntiAlias) {
// Draw fringes
n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
offset = (n + path->nfill) * sizeof(struct NVGvertex);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(size_t)offset);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(offset + 2*sizeof(float)));
glDrawArrays(GL_TRIANGLE_STRIP, 0, path->nstroke);
n += path->nfill + path->nstroke;
}
}
glUseProgram(0);
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
} else {
glEnable(GL_CULL_FACE);
glBindVertexArray(gl->vertArr);
glBindBuffer(GL_ARRAY_BUFFER, gl->vertBuf);
// Draw shapes
glDisable(GL_BLEND);
glEnable(GL_STENCIL_TEST);
glStencilMask(0xff);
glStencilFunc(GL_ALWAYS, 0, ~0);
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glUseProgram(gl->shader.prog);
glUniform1i(gl->shader.loc[GLNVG_LOC_TYPE], NSVG_SHADER_SIMPLE);
glUniform2f(gl->shader.loc[GLNVG_LOC_VIEWSIZE], gl->viewWidth, gl->viewHeight);
glnvg__checkError("fill solid loc");
glEnableVertexAttribArray(0);
glStencilOpSeparate(GL_FRONT, GL_KEEP, GL_KEEP, GL_INCR_WRAP);
glStencilOpSeparate(GL_BACK, GL_KEEP, GL_KEEP, GL_DECR_WRAP);
glDisable(GL_CULL_FACE);
n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
offset = n * sizeof(struct NVGvertex);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(size_t)offset);
glDrawArrays(GL_TRIANGLE_FAN, 0, path->nfill);
n += path->nfill + path->nstroke;
}
glEnable(GL_CULL_FACE);
// Draw aliased off-pixels
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glEnable(GL_BLEND);
glEnableVertexAttribArray(1);
glnvg__setupPaint(gl, paint, scissor, fringe, fringe);
if (gl->edgeAntiAlias) {
glStencilFunc(GL_EQUAL, 0x00, 0xff);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
// Draw fringes
n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
offset = (n + path->nfill) * sizeof(struct NVGvertex);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(size_t)offset);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(offset + 2*sizeof(float)));
glDrawArrays(GL_TRIANGLE_STRIP, 0, path->nstroke);
n += path->nfill + path->nstroke;
}
}
// Draw fill
glStencilFunc(GL_NOTEQUAL, 0x0, 0xff);
glStencilOp(GL_ZERO, GL_ZERO, GL_ZERO);
glDisableVertexAttribArray(1);
float quad[6*2] = {
bounds[0], bounds[3], bounds[2], bounds[3], bounds[2], bounds[1],
bounds[0], bounds[3], bounds[2], bounds[1], bounds[0], bounds[1],
};
glBufferSubData(GL_ARRAY_BUFFER, 0, 6 * 2*sizeof(float), quad);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2*sizeof(float), (const GLvoid*)0);
glVertexAttrib2f(1, 0.5f, 1.0f);
glDrawArrays(GL_TRIANGLES, 0, 6);
glUseProgram(0);
glDisableVertexAttribArray(0);
glDisable(GL_STENCIL_TEST);
}
}
static void glnvg__renderStroke(void* uptr, struct NVGpaint* paint, struct NVGscissor* scissor, float fringe,
float width, const struct NVGpath* paths, int npaths)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
const struct NVGpath* path;
int i, n, offset, maxCount;
if (gl->shader.prog == 0)
return;
glnvg__setupPaint(gl, paint, scissor, width, fringe);
glEnable(GL_CULL_FACE);
maxCount = glnvg__maxVertCount(paths, npaths);
glBindVertexArray(gl->vertArr);
glBindBuffer(GL_ARRAY_BUFFER, gl->vertBuf);
glBufferData(GL_ARRAY_BUFFER, maxCount * sizeof(struct NVGvertex), NULL, GL_STREAM_DRAW);
glnvg__uploadPaths(paths, npaths);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
// Draw Strokes
n = 0;
for (i = 0; i < npaths; i++) {
path = &paths[i];
offset = (n + path->nfill) * sizeof(struct NVGvertex);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(size_t)offset);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(offset + 2*sizeof(float)));
glDrawArrays(GL_TRIANGLE_STRIP, 0, path->nstroke);
n += path->nfill + path->nstroke;
}
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
glUseProgram(0);
}
static void glnvg__renderTriangles(void* uptr, struct NVGpaint* paint, struct NVGscissor* scissor,
const struct NVGvertex* verts, int nverts)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
struct GLNVGtexture* tex = glnvg__findTexture(gl, paint->image);
struct NVGcolor color;
NVG_NOTUSED(scissor);
if (gl->shader.prog == 0)
return;
if (tex != NULL) {
glBindTexture(GL_TEXTURE_2D, tex->tex);
}
glUseProgram(gl->shader.prog);
glUniform1i(gl->shader.loc[GLNVG_LOC_TYPE], NSVG_SHADER_IMG);
glUniform2f(gl->shader.loc[GLNVG_LOC_VIEWSIZE], gl->viewWidth, gl->viewHeight);
glUniform1i(gl->shader.loc[GLNVG_LOC_TEX], 0);
glUniform1i(gl->shader.loc[GLNVG_LOC_TEXTYPE], tex->type == NVG_TEXTURE_RGBA ? 0 : 1);
glnvg__checkError("tris solid img loc");
glBindVertexArray(gl->vertArr);
glBindBuffer(GL_ARRAY_BUFFER, gl->vertBuf);
glBufferData(GL_ARRAY_BUFFER, nverts * sizeof(struct NVGvertex), verts, GL_STREAM_DRAW);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)0);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(struct NVGvertex), (const GLvoid*)(2 * sizeof(float)));
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
color = paint->innerColor;
glVertexAttrib4fv(2, color.rgba);
glDrawArrays(GL_TRIANGLES, 0, nverts);
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
}
static void glnvg__renderDelete(void* uptr)
{
struct GLNVGcontext* gl = (struct GLNVGcontext*)uptr;
int i;
if (gl == NULL) return;
glnvg__deleteShader(&gl->shader);
for (i = 0; i < gl->ntextures; i++) {
if (gl->textures[i].tex != 0)
glDeleteTextures(1, &gl->textures[i].tex);
}
free(gl->textures);
free(gl);
}
#ifdef NANOVG_GLES3
struct NVGcontext* nvgCreateGLES3(int atlasw, int atlash, int edgeaa)
#else
struct NVGcontext* nvgCreateGL3(int atlasw, int atlash, int edgeaa)
#endif
{
struct NVGparams params;
struct NVGcontext* ctx = NULL;
struct GLNVGcontext* gl = (struct GLNVGcontext*)malloc(sizeof(struct GLNVGcontext));
if (gl == NULL) goto error;
memset(gl, 0, sizeof(struct GLNVGcontext));
memset(¶ms, 0, sizeof(params));
params.renderCreate = glnvg__renderCreate;
params.renderCreateTexture = glnvg__renderCreateTexture;
params.renderDeleteTexture = glnvg__renderDeleteTexture;
params.renderUpdateTexture = glnvg__renderUpdateTexture;
params.renderGetTextureSize = glnvg__renderGetTextureSize;
params.renderViewport = glnvg__renderViewport;
params.renderFlush = glnvg__renderFlush;
params.renderFill = glnvg__renderFill;
params.renderStroke = glnvg__renderStroke;
params.renderTriangles = glnvg__renderTriangles;
params.renderDelete = glnvg__renderDelete;
params.userPtr = gl;
params.atlasWidth = atlasw;
params.atlasHeight = atlash;
params.edgeAntiAlias = edgeaa;
gl->edgeAntiAlias = edgeaa;
ctx = nvgCreateInternal(¶ms);
if (ctx == NULL) goto error;
return ctx;
error:
// 'gl' is freed by nvgDeleteInternal.
if (ctx != NULL) nvgDeleteInternal(ctx);
return NULL;
}
#ifdef NANOVG_GLES3
void nvgDeleteGLES3(struct NVGcontext* ctx)
#else
void nvgDeleteGL3(struct NVGcontext* ctx)
#endif
{
nvgDeleteInternal(ctx);
}
#endif
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
premake4.lua | Lua |
local action = _ACTION or ""
solution "nanovg"
location ( "build" )
configurations { "Debug", "Release" }
platforms {"native", "x64", "x32"}
project "nanovg"
language "C"
kind "StaticLib"
includedirs { "src" }
files { "src/*.c" }
targetdir("build")
defines { "_CRT_SECURE_NO_WARNINGS" } --,"FONS_USE_FREETYPE" } Uncomment to compile with FreeType support
configuration "Debug"
defines { "DEBUG" }
flags { "Symbols", "ExtraWarnings"}
configuration "Release"
defines { "NDEBUG" }
flags { "Optimize", "ExtraWarnings"}
project "example_gl2"
kind "ConsoleApp"
language "C"
files { "example/example_gl2.c", "example/demo.c", "example/perf.c" }
includedirs { "src", "example" }
targetdir("build")
links { "nanovg" }
configuration { "linux" }
linkoptions { "`pkg-config --libs glfw3`" }
links { "GL", "GLU", "m", "GLEW" }
defines { "NANOVG_GLEW" }
configuration { "windows" }
links { "glfw3", "gdi32", "winmm", "user32", "GLEW", "glu32","opengl32", "kernel32" }
defines { "NANOVG_GLEW", "_CRT_SECURE_NO_WARNINGS" }
configuration { "macosx" }
links { "glfw3" }
linkoptions { "-framework OpenGL", "-framework Cocoa", "-framework IOKit", "-framework CoreVideo", "-framework Carbon" }
configuration "Debug"
defines { "DEBUG" }
flags { "Symbols", "ExtraWarnings"}
configuration "Release"
defines { "NDEBUG" }
flags { "Optimize", "ExtraWarnings"}
project "example_gl3"
kind "ConsoleApp"
language "C"
files { "example/example_gl3.c", "example/demo.c", "example/perf.c" }
includedirs { "src", "example" }
targetdir("build")
links { "nanovg" }
configuration { "linux" }
linkoptions { "`pkg-config --libs glfw3`" }
links { "GL", "GLU", "m", "GLEW" }
defines { "NANOVG_GLEW" }
configuration { "windows" }
links { "glfw3", "gdi32", "winmm", "user32", "GLEW", "glu32","opengl32", "kernel32" }
defines { "NANOVG_GLEW", "_CRT_SECURE_NO_WARNINGS" }
configuration { "macosx" }
links { "glfw3" }
linkoptions { "-framework OpenGL", "-framework Cocoa", "-framework IOKit", "-framework CoreVideo", "-framework Carbon" }
configuration "Debug"
defines { "DEBUG" }
flags { "Symbols", "ExtraWarnings"}
configuration "Release"
defines { "NDEBUG" }
flags { "Optimize", "ExtraWarnings"}
project "example_gl2_msaa"
kind "ConsoleApp"
language "C"
defines { "DEMO_MSAA" }
files { "example/example_gl2.c", "example/demo.c", "example/perf.c" }
includedirs { "src", "example" }
targetdir("build")
links { "nanovg" }
configuration { "linux" }
linkoptions { "`pkg-config --libs glfw3`" }
links { "GL", "GLU", "m", "GLEW" }
defines { "NANOVG_GLEW" }
configuration { "windows" }
links { "glfw3", "gdi32", "winmm", "user32", "GLEW", "glu32","opengl32", "kernel32" }
defines { "NANOVG_GLEW", "_CRT_SECURE_NO_WARNINGS" }
configuration { "macosx" }
links { "glfw3" }
linkoptions { "-framework OpenGL", "-framework Cocoa", "-framework IOKit", "-framework CoreVideo", "-framework Carbon" }
configuration "Debug"
defines { "DEBUG" }
flags { "Symbols", "ExtraWarnings"}
configuration "Release"
defines { "NDEBUG" }
flags { "Optimize", "ExtraWarnings"}
project "example_gl3_msaa"
kind "ConsoleApp"
language "C"
defines { "DEMO_MSAA" }
files { "example/example_gl3.c", "example/demo.c", "example/perf.c" }
includedirs { "src", "example" }
targetdir("build")
links { "nanovg" }
configuration { "linux" }
linkoptions { "`pkg-config --libs glfw3`" }
links { "GL", "GLU", "m", "GLEW" }
defines { "NANOVG_GLEW" }
configuration { "windows" }
links { "glfw3", "gdi32", "winmm", "user32", "GLEW", "glu32","opengl32", "kernel32" }
defines { "NANOVG_GLEW", "_CRT_SECURE_NO_WARNINGS" }
configuration { "macosx" }
links { "glfw3" }
linkoptions { "-framework OpenGL", "-framework Cocoa", "-framework IOKit", "-framework CoreVideo", "-framework Carbon" }
configuration "Debug"
defines { "DEBUG" }
flags { "Symbols", "ExtraWarnings"}
configuration "Release"
defines { "NDEBUG" }
flags { "Optimize", "ExtraWarnings"}
project "example_fbo"
kind "ConsoleApp"
language "C"
files { "example/example_fbo.c", "example/perf.c" }
includedirs { "src", "example" }
targetdir("build")
links { "nanovg" }
configuration { "linux" }
linkoptions { "`pkg-config --libs glfw3`" }
links { "GL", "GLU", "m", "GLEW" }
configuration { "windows" }
links { "glfw3", "gdi32", "winmm", "user32", "GLEW", "glu32","opengl32", "kernel32" }
defines { "NANOVG_GLEW", "_CRT_SECURE_NO_WARNINGS" }
configuration { "macosx" }
links { "glfw3" }
linkoptions { "-framework OpenGL", "-framework Cocoa", "-framework IOKit", "-framework CoreVideo", "-framework Carbon" }
configuration "Debug"
defines { "DEBUG" }
flags { "Symbols", "ExtraWarnings"}
configuration "Release"
defines { "NDEBUG" }
flags { "Optimize", "ExtraWarnings"}
project "example_gles2"
kind "ConsoleApp"
language "C"
files { "example/example_gles2.c", "example/demo.c", "example/perf.c" }
includedirs { "src", "example" }
targetdir("build")
links { "nanovg" }
configuration { "linux" }
linkoptions { "`pkg-config --libs glfw3`" }
links { "GL", "GLU", "m", "GLEW" }
configuration { "windows" }
links { "glfw3", "gdi32", "winmm", "user32", "GLEW", "glu32","opengl32", "kernel32" }
defines { "NANOVG_GLEW", "_CRT_SECURE_NO_WARNINGS" }
configuration { "macosx" }
links { "glfw3" }
linkoptions { "-framework OpenGL", "-framework Cocoa", "-framework IOKit", "-framework CoreVideo", "-framework Carbon" }
configuration "Debug"
defines { "DEBUG" }
flags { "Symbols", "ExtraWarnings"}
configuration "Release"
defines { "NDEBUG" }
flags { "Optimize", "ExtraWarnings"}
project "example_gles3"
kind "ConsoleApp"
language "C"
files { "example/example_gles3.c", "example/demo.c", "example/perf.c" }
includedirs { "src", "example" }
targetdir("build")
links { "nanovg" }
configuration { "linux" }
linkoptions { "`pkg-config --libs glfw3`" }
links { "GL", "GLU", "m", "GLEW" }
configuration { "windows" }
links { "glfw3", "gdi32", "winmm", "user32", "GLEW", "glu32","opengl32", "kernel32" }
defines { "NANOVG_GLEW", "_CRT_SECURE_NO_WARNINGS" }
configuration { "macosx" }
links { "glfw3" }
linkoptions { "-framework OpenGL", "-framework Cocoa", "-framework IOKit", "-framework CoreVideo", "-framework Carbon" }
configuration "Debug"
defines { "DEBUG" }
flags { "Symbols", "ExtraWarnings"}
configuration "Release"
defines { "NDEBUG" }
flags { "Optimize", "ExtraWarnings"}
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
src/fontstash.h | C/C++ Header | //
// Copyright (c) 2009-2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#ifndef FONS_H
#define FONS_H
#define FONS_INVALID -1
enum FONSflags {
FONS_ZERO_TOPLEFT = 1,
FONS_ZERO_BOTTOMLEFT = 2,
};
enum FONSalign {
// Horizontal align
FONS_ALIGN_LEFT = 1<<0, // Default
FONS_ALIGN_CENTER = 1<<1,
FONS_ALIGN_RIGHT = 1<<2,
// Vertical align
FONS_ALIGN_TOP = 1<<3,
FONS_ALIGN_MIDDLE = 1<<4,
FONS_ALIGN_BOTTOM = 1<<5,
FONS_ALIGN_BASELINE = 1<<6, // Default
};
enum FONSglyphBitmap {
FONS_GLYPH_BITMAP_OPTIONAL = 1,
FONS_GLYPH_BITMAP_REQUIRED = 2,
};
enum FONSerrorCode {
// Font atlas is full.
FONS_ATLAS_FULL = 1,
// Scratch memory used to render glyphs is full, requested size reported in 'val', you may need to bump up FONS_SCRATCH_BUF_SIZE.
FONS_SCRATCH_FULL = 2,
// Calls to fonsPushState has created too large stack, if you need deep state stack bump up FONS_MAX_STATES.
FONS_STATES_OVERFLOW = 3,
// Trying to pop too many states fonsPopState().
FONS_STATES_UNDERFLOW = 4,
};
struct FONSparams {
int width, height;
unsigned char flags;
void* userPtr;
int (*renderCreate)(void* uptr, int width, int height);
int (*renderResize)(void* uptr, int width, int height);
void (*renderUpdate)(void* uptr, int* rect, const unsigned char* data);
void (*renderDraw)(void* uptr, const float* verts, const float* tcoords, const unsigned int* colors, int nverts);
void (*renderDelete)(void* uptr);
};
typedef struct FONSparams FONSparams;
struct FONSquad
{
float x0,y0,s0,t0;
float x1,y1,s1,t1;
};
typedef struct FONSquad FONSquad;
struct FONStextIter {
float x, y, nextx, nexty, scale, spacing;
unsigned int codepoint;
short isize, iblur;
struct FONSfont* font;
int prevGlyphIndex;
const char* str;
const char* next;
const char* end;
unsigned int utf8state;
int bitmapOption;
};
typedef struct FONStextIter FONStextIter;
typedef struct FONScontext FONScontext;
// Constructor and destructor.
FONScontext* fonsCreateInternal(FONSparams* params);
void fonsDeleteInternal(FONScontext* s);
void fonsSetErrorCallback(FONScontext* s, void (*callback)(void* uptr, int error, int val), void* uptr);
// Returns current atlas size.
void fonsGetAtlasSize(FONScontext* s, int* width, int* height);
// Expands the atlas size.
int fonsExpandAtlas(FONScontext* s, int width, int height);
// Resets the whole stash.
int fonsResetAtlas(FONScontext* stash, int width, int height);
// Add fonts
int fonsAddFont(FONScontext* s, const char* name, const char* path, int fontIndex);
int fonsAddFontMem(FONScontext* s, const char* name, unsigned char* data, int ndata, int freeData, int fontIndex);
int fonsGetFontByName(FONScontext* s, const char* name);
// State handling
void fonsPushState(FONScontext* s);
void fonsPopState(FONScontext* s);
void fonsClearState(FONScontext* s);
// State setting
void fonsSetSize(FONScontext* s, float size);
void fonsSetColor(FONScontext* s, unsigned int color);
void fonsSetSpacing(FONScontext* s, float spacing);
void fonsSetBlur(FONScontext* s, float blur);
void fonsSetAlign(FONScontext* s, int align);
void fonsSetFont(FONScontext* s, int font);
// Draw text
float fonsDrawText(FONScontext* s, float x, float y, const char* string, const char* end);
// Measure text
float fonsTextBounds(FONScontext* s, float x, float y, const char* string, const char* end, float* bounds);
void fonsLineBounds(FONScontext* s, float y, float* miny, float* maxy);
void fonsVertMetrics(FONScontext* s, float* ascender, float* descender, float* lineh);
// Text iterator
int fonsTextIterInit(FONScontext* stash, FONStextIter* iter, float x, float y, const char* str, const char* end, int bitmapOption);
int fonsTextIterNext(FONScontext* stash, FONStextIter* iter, struct FONSquad* quad);
// Pull texture changes
const unsigned char* fonsGetTextureData(FONScontext* stash, int* width, int* height);
int fonsValidateTexture(FONScontext* s, int* dirty);
// Draws the stash texture for debugging
void fonsDrawDebug(FONScontext* s, float x, float y);
#endif // FONTSTASH_H
#ifdef FONTSTASH_IMPLEMENTATION
#define FONS_NOTUSED(v) (void)sizeof(v)
#ifdef __PSV__
#include <psp2/io/fcntl.h>
#endif
#ifdef FONS_USE_FREETYPE
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_ADVANCES_H
#include <math.h>
struct FONSttFontImpl {
FT_Face font;
};
typedef struct FONSttFontImpl FONSttFontImpl;
#else
#define STB_TRUETYPE_IMPLEMENTATION
static void* fons__tmpalloc(size_t size, void* up);
static void fons__tmpfree(void* ptr, void* up);
#define STBTT_malloc(x,u) fons__tmpalloc(x,u)
#define STBTT_free(x,u) fons__tmpfree(x,u)
#include "stb_truetype.h"
struct FONSttFontImpl {
stbtt_fontinfo font;
};
typedef struct FONSttFontImpl FONSttFontImpl;
#endif
#ifndef FONS_SCRATCH_BUF_SIZE
# define FONS_SCRATCH_BUF_SIZE 96000
#endif
#ifndef FONS_HASH_LUT_SIZE
# define FONS_HASH_LUT_SIZE 256
#endif
#ifndef FONS_INIT_FONTS
# define FONS_INIT_FONTS 4
#endif
#ifndef FONS_INIT_GLYPHS
# define FONS_INIT_GLYPHS 256
#endif
#ifndef FONS_INIT_ATLAS_NODES
# define FONS_INIT_ATLAS_NODES 256
#endif
#ifndef FONS_VERTEX_COUNT
# define FONS_VERTEX_COUNT 1024
#endif
#ifndef FONS_MAX_STATES
# define FONS_MAX_STATES 20
#endif
#ifndef FONS_MAX_FALLBACKS
# define FONS_MAX_FALLBACKS 20
#endif
static unsigned int fons__hashint(unsigned int a)
{
a += ~(a<<15);
a ^= (a>>10);
a += (a<<3);
a ^= (a>>6);
a += ~(a<<11);
a ^= (a>>16);
return a;
}
static int fons__mini(int a, int b)
{
return a < b ? a : b;
}
static int fons__maxi(int a, int b)
{
return a > b ? a : b;
}
struct FONSglyph
{
unsigned int codepoint;
int index;
int next;
short size, blur;
short x0,y0,x1,y1;
short xadv,xoff,yoff;
};
typedef struct FONSglyph FONSglyph;
struct FONSfont
{
FONSttFontImpl font;
char name[64];
unsigned char* data;
int dataSize;
unsigned char freeData;
float ascender;
float descender;
float lineh;
FONSglyph* glyphs;
int cglyphs;
int nglyphs;
int lut[FONS_HASH_LUT_SIZE];
int fallbacks[FONS_MAX_FALLBACKS];
int nfallbacks;
};
typedef struct FONSfont FONSfont;
struct FONSstate
{
int font;
int align;
float size;
unsigned int color;
float blur;
float spacing;
};
typedef struct FONSstate FONSstate;
struct FONSatlasNode {
short x, y, width;
};
typedef struct FONSatlasNode FONSatlasNode;
struct FONSatlas
{
int width, height;
FONSatlasNode* nodes;
int nnodes;
int cnodes;
};
typedef struct FONSatlas FONSatlas;
struct FONScontext
{
FONSparams params;
float itw,ith;
unsigned char* texData;
int dirtyRect[4];
FONSfont** fonts;
FONSatlas* atlas;
int cfonts;
int nfonts;
float verts[FONS_VERTEX_COUNT*2];
float tcoords[FONS_VERTEX_COUNT*2];
unsigned int colors[FONS_VERTEX_COUNT];
int nverts;
unsigned char* scratch;
int nscratch;
FONSstate states[FONS_MAX_STATES];
int nstates;
void (*handleError)(void* uptr, int error, int val);
void* errorUptr;
#ifdef FONS_USE_FREETYPE
FT_Library ftLibrary;
#endif
};
#ifdef FONS_USE_FREETYPE
int fons__tt_init(FONScontext *context)
{
FT_Error ftError;
FONS_NOTUSED(context);
ftError = FT_Init_FreeType(&context->ftLibrary);
return ftError == 0;
}
int fons__tt_done(FONScontext *context)
{
FT_Error ftError;
FONS_NOTUSED(context);
ftError = FT_Done_FreeType(context->ftLibrary);
return ftError == 0;
}
int fons__tt_loadFont(FONScontext *context, FONSttFontImpl *font, unsigned char *data, int dataSize, int fontIndex)
{
FT_Error ftError;
FONS_NOTUSED(context);
ftError = FT_New_Memory_Face(context->ftLibrary, (const FT_Byte*)data, dataSize, fontIndex, &font->font);
return ftError == 0;
}
void fons__tt_getFontVMetrics(FONSttFontImpl *font, int *ascent, int *descent, int *lineGap)
{
*ascent = font->font->ascender;
*descent = font->font->descender;
*lineGap = font->font->height - (*ascent - *descent);
}
float fons__tt_getPixelHeightScale(FONSttFontImpl *font, float size)
{
return size / font->font->units_per_EM;
}
int fons__tt_getGlyphIndex(FONSttFontImpl *font, int codepoint)
{
return FT_Get_Char_Index(font->font, codepoint);
}
int fons__tt_buildGlyphBitmap(FONSttFontImpl *font, int glyph, float size, float scale,
int *advance, int *lsb, int *x0, int *y0, int *x1, int *y1)
{
FT_Error ftError;
FT_GlyphSlot ftGlyph;
FT_Fixed advFixed;
FONS_NOTUSED(scale);
ftError = FT_Set_Pixel_Sizes(font->font, 0, size);
if (ftError) return 0;
ftError = FT_Load_Glyph(font->font, glyph, FT_LOAD_RENDER | FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_LIGHT);
if (ftError) return 0;
ftError = FT_Get_Advance(font->font, glyph, FT_LOAD_NO_SCALE, &advFixed);
if (ftError) return 0;
ftGlyph = font->font->glyph;
*advance = (int)advFixed;
*lsb = (int)ftGlyph->metrics.horiBearingX;
*x0 = ftGlyph->bitmap_left;
*x1 = *x0 + ftGlyph->bitmap.width;
*y0 = -ftGlyph->bitmap_top;
*y1 = *y0 + ftGlyph->bitmap.rows;
return 1;
}
void fons__tt_renderGlyphBitmap(FONSttFontImpl *font, unsigned char *output, int outWidth, int outHeight, int outStride,
float scaleX, float scaleY, int glyph)
{
FT_GlyphSlot ftGlyph = font->font->glyph;
int ftGlyphOffset = 0;
unsigned int x, y;
FONS_NOTUSED(outWidth);
FONS_NOTUSED(outHeight);
FONS_NOTUSED(scaleX);
FONS_NOTUSED(scaleY);
FONS_NOTUSED(glyph); // glyph has already been loaded by fons__tt_buildGlyphBitmap
for ( y = 0; y < ftGlyph->bitmap.rows; y++ ) {
for ( x = 0; x < ftGlyph->bitmap.width; x++ ) {
output[(y * outStride) + x] = ftGlyph->bitmap.buffer[ftGlyphOffset++];
}
}
}
int fons__tt_getGlyphKernAdvance(FONSttFontImpl *font, int glyph1, int glyph2)
{
FT_Vector ftKerning;
FT_Get_Kerning(font->font, glyph1, glyph2, FT_KERNING_DEFAULT, &ftKerning);
return (int)((ftKerning.x + 32) >> 6); // Round up and convert to integer
}
#else
int fons__tt_init(FONScontext *context)
{
FONS_NOTUSED(context);
return 1;
}
int fons__tt_done(FONScontext *context)
{
FONS_NOTUSED(context);
return 1;
}
int fons__tt_loadFont(FONScontext *context, FONSttFontImpl *font, unsigned char *data, int dataSize, int fontIndex)
{
int offset, stbError;
FONS_NOTUSED(dataSize);
font->font.userdata = context;
offset = stbtt_GetFontOffsetForIndex(data, fontIndex);
if (offset == -1) {
stbError = 0;
} else {
stbError = stbtt_InitFont(&font->font, data, offset);
}
return stbError;
}
void fons__tt_getFontVMetrics(FONSttFontImpl *font, int *ascent, int *descent, int *lineGap)
{
stbtt_GetFontVMetrics(&font->font, ascent, descent, lineGap);
}
float fons__tt_getPixelHeightScale(FONSttFontImpl *font, float size)
{
return stbtt_ScaleForMappingEmToPixels(&font->font, size);
}
int fons__tt_getGlyphIndex(FONSttFontImpl *font, int codepoint)
{
return stbtt_FindGlyphIndex(&font->font, codepoint);
}
int fons__tt_buildGlyphBitmap(FONSttFontImpl *font, int glyph, float size, float scale,
int *advance, int *lsb, int *x0, int *y0, int *x1, int *y1)
{
FONS_NOTUSED(size);
stbtt_GetGlyphHMetrics(&font->font, glyph, advance, lsb);
stbtt_GetGlyphBitmapBox(&font->font, glyph, scale, scale, x0, y0, x1, y1);
return 1;
}
void fons__tt_renderGlyphBitmap(FONSttFontImpl *font, unsigned char *output, int outWidth, int outHeight, int outStride,
float scaleX, float scaleY, int glyph)
{
stbtt_MakeGlyphBitmap(&font->font, output, outWidth, outHeight, outStride, scaleX, scaleY, glyph);
}
int fons__tt_getGlyphKernAdvance(FONSttFontImpl *font, int glyph1, int glyph2)
{
return stbtt_GetGlyphKernAdvance(&font->font, glyph1, glyph2);
}
#endif
#ifdef STB_TRUETYPE_IMPLEMENTATION
static void* fons__tmpalloc(size_t size, void* up)
{
unsigned char* ptr;
FONScontext* stash = (FONScontext*)up;
// 16-byte align the returned pointer
size = (size + 0xf) & ~0xf;
if (stash->nscratch+(int)size > FONS_SCRATCH_BUF_SIZE) {
if (stash->handleError)
stash->handleError(stash->errorUptr, FONS_SCRATCH_FULL, stash->nscratch+(int)size);
return NULL;
}
ptr = stash->scratch + stash->nscratch;
stash->nscratch += (int)size;
return ptr;
}
static void fons__tmpfree(void* ptr, void* up)
{
(void)ptr;
(void)up;
// empty
}
#endif // STB_TRUETYPE_IMPLEMENTATION
// Copyright (c) 2008-2010 Bjoern Hoehrmann <bjoern@hoehrmann.de>
// See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details.
#define FONS_UTF8_ACCEPT 0
#define FONS_UTF8_REJECT 12
static unsigned int fons__decutf8(unsigned int* state, unsigned int* codep, unsigned int byte)
{
static const unsigned char utf8d[] = {
// The first part of the table maps bytes to character classes that
// to reduce the size of the transition table and create bitmasks.
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8,
// The second part is a transition table that maps a combination
// of a state of the automaton and a character class to a state.
0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
12,36,12,12,12,12,12,12,12,12,12,12,
};
unsigned int type = utf8d[byte];
*codep = (*state != FONS_UTF8_ACCEPT) ?
(byte & 0x3fu) | (*codep << 6) :
(0xff >> type) & (byte);
*state = utf8d[256 + *state + type];
return *state;
}
// Atlas based on Skyline Bin Packer by Jukka Jylänki
static void fons__deleteAtlas(FONSatlas* atlas)
{
if (atlas == NULL) return;
if (atlas->nodes != NULL) free(atlas->nodes);
free(atlas);
}
static FONSatlas* fons__allocAtlas(int w, int h, int nnodes)
{
FONSatlas* atlas = NULL;
// Allocate memory for the font stash.
atlas = (FONSatlas*)malloc(sizeof(FONSatlas));
if (atlas == NULL) goto error;
memset(atlas, 0, sizeof(FONSatlas));
atlas->width = w;
atlas->height = h;
// Allocate space for skyline nodes
atlas->nodes = (FONSatlasNode*)malloc(sizeof(FONSatlasNode) * nnodes);
if (atlas->nodes == NULL) goto error;
memset(atlas->nodes, 0, sizeof(FONSatlasNode) * nnodes);
atlas->nnodes = 0;
atlas->cnodes = nnodes;
// Init root node.
atlas->nodes[0].x = 0;
atlas->nodes[0].y = 0;
atlas->nodes[0].width = (short)w;
atlas->nnodes++;
return atlas;
error:
if (atlas) fons__deleteAtlas(atlas);
return NULL;
}
static int fons__atlasInsertNode(FONSatlas* atlas, int idx, int x, int y, int w)
{
int i;
// Insert node
if (atlas->nnodes+1 > atlas->cnodes) {
atlas->cnodes = atlas->cnodes == 0 ? 8 : atlas->cnodes * 2;
atlas->nodes = (FONSatlasNode*)realloc(atlas->nodes, sizeof(FONSatlasNode) * atlas->cnodes);
if (atlas->nodes == NULL)
return 0;
}
for (i = atlas->nnodes; i > idx; i--)
atlas->nodes[i] = atlas->nodes[i-1];
atlas->nodes[idx].x = (short)x;
atlas->nodes[idx].y = (short)y;
atlas->nodes[idx].width = (short)w;
atlas->nnodes++;
return 1;
}
static void fons__atlasRemoveNode(FONSatlas* atlas, int idx)
{
int i;
if (atlas->nnodes == 0) return;
for (i = idx; i < atlas->nnodes-1; i++)
atlas->nodes[i] = atlas->nodes[i+1];
atlas->nnodes--;
}
static void fons__atlasExpand(FONSatlas* atlas, int w, int h)
{
// Insert node for empty space
if (w > atlas->width)
fons__atlasInsertNode(atlas, atlas->nnodes, atlas->width, 0, w - atlas->width);
atlas->width = w;
atlas->height = h;
}
static void fons__atlasReset(FONSatlas* atlas, int w, int h)
{
atlas->width = w;
atlas->height = h;
atlas->nnodes = 0;
// Init root node.
atlas->nodes[0].x = 0;
atlas->nodes[0].y = 0;
atlas->nodes[0].width = (short)w;
atlas->nnodes++;
}
static int fons__atlasAddSkylineLevel(FONSatlas* atlas, int idx, int x, int y, int w, int h)
{
int i;
// Insert new node
if (fons__atlasInsertNode(atlas, idx, x, y+h, w) == 0)
return 0;
// Delete skyline segments that fall under the shadow of the new segment.
for (i = idx+1; i < atlas->nnodes; i++) {
if (atlas->nodes[i].x < atlas->nodes[i-1].x + atlas->nodes[i-1].width) {
int shrink = atlas->nodes[i-1].x + atlas->nodes[i-1].width - atlas->nodes[i].x;
atlas->nodes[i].x += (short)shrink;
atlas->nodes[i].width -= (short)shrink;
if (atlas->nodes[i].width <= 0) {
fons__atlasRemoveNode(atlas, i);
i--;
} else {
break;
}
} else {
break;
}
}
// Merge same height skyline segments that are next to each other.
for (i = 0; i < atlas->nnodes-1; i++) {
if (atlas->nodes[i].y == atlas->nodes[i+1].y) {
atlas->nodes[i].width += atlas->nodes[i+1].width;
fons__atlasRemoveNode(atlas, i+1);
i--;
}
}
return 1;
}
static int fons__atlasRectFits(FONSatlas* atlas, int i, int w, int h)
{
// Checks if there is enough space at the location of skyline span 'i',
// and return the max height of all skyline spans under that at that location,
// (think tetris block being dropped at that position). Or -1 if no space found.
int x = atlas->nodes[i].x;
int y = atlas->nodes[i].y;
int spaceLeft;
if (x + w > atlas->width)
return -1;
spaceLeft = w;
while (spaceLeft > 0) {
if (i == atlas->nnodes) return -1;
y = fons__maxi(y, atlas->nodes[i].y);
if (y + h > atlas->height) return -1;
spaceLeft -= atlas->nodes[i].width;
++i;
}
return y;
}
static int fons__atlasAddRect(FONSatlas* atlas, int rw, int rh, int* rx, int* ry)
{
int besth = atlas->height, bestw = atlas->width, besti = -1;
int bestx = -1, besty = -1, i;
// Bottom left fit heuristic.
for (i = 0; i < atlas->nnodes; i++) {
int y = fons__atlasRectFits(atlas, i, rw, rh);
if (y != -1) {
if (y + rh < besth || (y + rh == besth && atlas->nodes[i].width < bestw)) {
besti = i;
bestw = atlas->nodes[i].width;
besth = y + rh;
bestx = atlas->nodes[i].x;
besty = y;
}
}
}
if (besti == -1)
return 0;
// Perform the actual packing.
if (fons__atlasAddSkylineLevel(atlas, besti, bestx, besty, rw, rh) == 0)
return 0;
*rx = bestx;
*ry = besty;
return 1;
}
static void fons__addWhiteRect(FONScontext* stash, int w, int h)
{
int x, y, gx, gy;
unsigned char* dst;
if (fons__atlasAddRect(stash->atlas, w, h, &gx, &gy) == 0)
return;
// Rasterize
dst = &stash->texData[gx + gy * stash->params.width];
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++)
dst[x] = 0xff;
dst += stash->params.width;
}
stash->dirtyRect[0] = fons__mini(stash->dirtyRect[0], gx);
stash->dirtyRect[1] = fons__mini(stash->dirtyRect[1], gy);
stash->dirtyRect[2] = fons__maxi(stash->dirtyRect[2], gx+w);
stash->dirtyRect[3] = fons__maxi(stash->dirtyRect[3], gy+h);
}
FONScontext* fonsCreateInternal(FONSparams* params)
{
FONScontext* stash = NULL;
// Allocate memory for the font stash.
stash = (FONScontext*)malloc(sizeof(FONScontext));
if (stash == NULL) goto error;
memset(stash, 0, sizeof(FONScontext));
stash->params = *params;
// Allocate scratch buffer.
stash->scratch = (unsigned char*)malloc(FONS_SCRATCH_BUF_SIZE);
if (stash->scratch == NULL) goto error;
// Initialize implementation library
if (!fons__tt_init(stash)) goto error;
if (stash->params.renderCreate != NULL) {
if (stash->params.renderCreate(stash->params.userPtr, stash->params.width, stash->params.height) == 0)
goto error;
}
stash->atlas = fons__allocAtlas(stash->params.width, stash->params.height, FONS_INIT_ATLAS_NODES);
if (stash->atlas == NULL) goto error;
// Allocate space for fonts.
stash->fonts = (FONSfont**)malloc(sizeof(FONSfont*) * FONS_INIT_FONTS);
if (stash->fonts == NULL) goto error;
memset(stash->fonts, 0, sizeof(FONSfont*) * FONS_INIT_FONTS);
stash->cfonts = FONS_INIT_FONTS;
stash->nfonts = 0;
// Create texture for the cache.
stash->itw = 1.0f/stash->params.width;
stash->ith = 1.0f/stash->params.height;
stash->texData = (unsigned char*)malloc(stash->params.width * stash->params.height);
if (stash->texData == NULL) goto error;
memset(stash->texData, 0, stash->params.width * stash->params.height);
stash->dirtyRect[0] = stash->params.width;
stash->dirtyRect[1] = stash->params.height;
stash->dirtyRect[2] = 0;
stash->dirtyRect[3] = 0;
// Add white rect at 0,0 for debug drawing.
fons__addWhiteRect(stash, 2,2);
fonsPushState(stash);
fonsClearState(stash);
return stash;
error:
fonsDeleteInternal(stash);
return NULL;
}
static FONSstate* fons__getState(FONScontext* stash)
{
return &stash->states[stash->nstates-1];
}
int fonsAddFallbackFont(FONScontext* stash, int base, int fallback)
{
FONSfont* baseFont = stash->fonts[base];
if (baseFont->nfallbacks < FONS_MAX_FALLBACKS) {
baseFont->fallbacks[baseFont->nfallbacks++] = fallback;
return 1;
}
return 0;
}
void fonsResetFallbackFont(FONScontext* stash, int base)
{
int i;
FONSfont* baseFont = stash->fonts[base];
baseFont->nfallbacks = 0;
baseFont->nglyphs = 0;
for (i = 0; i < FONS_HASH_LUT_SIZE; i++)
baseFont->lut[i] = -1;
}
void fonsSetSize(FONScontext* stash, float size)
{
fons__getState(stash)->size = size;
}
void fonsSetColor(FONScontext* stash, unsigned int color)
{
fons__getState(stash)->color = color;
}
void fonsSetSpacing(FONScontext* stash, float spacing)
{
fons__getState(stash)->spacing = spacing;
}
void fonsSetBlur(FONScontext* stash, float blur)
{
fons__getState(stash)->blur = blur;
}
void fonsSetAlign(FONScontext* stash, int align)
{
fons__getState(stash)->align = align;
}
void fonsSetFont(FONScontext* stash, int font)
{
fons__getState(stash)->font = font;
}
void fonsPushState(FONScontext* stash)
{
if (stash->nstates >= FONS_MAX_STATES) {
if (stash->handleError)
stash->handleError(stash->errorUptr, FONS_STATES_OVERFLOW, 0);
return;
}
if (stash->nstates > 0)
memcpy(&stash->states[stash->nstates], &stash->states[stash->nstates-1], sizeof(FONSstate));
stash->nstates++;
}
void fonsPopState(FONScontext* stash)
{
if (stash->nstates <= 1) {
if (stash->handleError)
stash->handleError(stash->errorUptr, FONS_STATES_UNDERFLOW, 0);
return;
}
stash->nstates--;
}
void fonsClearState(FONScontext* stash)
{
FONSstate* state = fons__getState(stash);
state->size = 12.0f;
state->color = 0xffffffff;
state->font = 0;
state->blur = 0;
state->spacing = 0;
state->align = FONS_ALIGN_LEFT | FONS_ALIGN_BASELINE;
}
static void fons__freeFont(FONSfont* font)
{
if (font == NULL) return;
if (font->glyphs) free(font->glyphs);
if (font->freeData && font->data) free(font->data);
free(font);
}
static int fons__allocFont(FONScontext* stash)
{
FONSfont* font = NULL;
if (stash->nfonts+1 > stash->cfonts) {
stash->cfonts = stash->cfonts == 0 ? 8 : stash->cfonts * 2;
stash->fonts = (FONSfont**)realloc(stash->fonts, sizeof(FONSfont*) * stash->cfonts);
if (stash->fonts == NULL)
return -1;
}
font = (FONSfont*)malloc(sizeof(FONSfont));
if (font == NULL) goto error;
memset(font, 0, sizeof(FONSfont));
font->glyphs = (FONSglyph*)malloc(sizeof(FONSglyph) * FONS_INIT_GLYPHS);
if (font->glyphs == NULL) goto error;
font->cglyphs = FONS_INIT_GLYPHS;
font->nglyphs = 0;
stash->fonts[stash->nfonts++] = font;
return stash->nfonts-1;
error:
fons__freeFont(font);
return FONS_INVALID;
}
int fonsAddFont(FONScontext* stash, const char* name, const char* path, int fontIndex)
{
#ifdef __PSV__
SceUID fp = 0;
long dataSize = 0;
SceSSize readed;
unsigned char* data = NULL;
// Read in the font data.
fp = sceIoOpen(path, SCE_O_RDONLY, 0777);
if (fp == 0) goto error;
dataSize = sceIoLseek32(fp, 0, SCE_SEEK_END);
sceIoLseek32(fp, 0, SCE_SEEK_SET);
data = (unsigned char*)malloc(dataSize);
if (data == NULL) goto error;
readed = sceIoRead(fp, data, dataSize);
sceIoClose(fp);
fp = 0;
if (readed != (size_t)dataSize) goto error;
return fonsAddFontMem(stash, name, data, dataSize, 1, fontIndex);
error:
if (data) free(data);
if (fp) sceIoClose(fp);
return FONS_INVALID;
#else
FILE* fp = 0;
int dataSize = 0;
size_t readed;
unsigned char* data = NULL;
// Read in the font data.
fp = fopen(path, "rb");
if (fp == NULL) goto error;
fseek(fp,0,SEEK_END);
dataSize = (int)ftell(fp);
fseek(fp,0,SEEK_SET);
data = (unsigned char*)malloc(dataSize);
if (data == NULL) goto error;
readed = fread(data, 1, dataSize, fp);
fclose(fp);
fp = 0;
if (readed != (size_t)dataSize) goto error;
return fonsAddFontMem(stash, name, data, dataSize, 1, fontIndex);
error:
if (data) free(data);
if (fp) fclose(fp);
return FONS_INVALID;
#endif
}
int fonsAddFontMem(FONScontext* stash, const char* name, unsigned char* data, int dataSize, int freeData, int fontIndex)
{
int i, ascent, descent, fh, lineGap;
FONSfont* font;
int idx = fons__allocFont(stash);
if (idx == FONS_INVALID)
return FONS_INVALID;
font = stash->fonts[idx];
strncpy(font->name, name, sizeof(font->name));
font->name[sizeof(font->name)-1] = '\0';
// Init hash lookup.
for (i = 0; i < FONS_HASH_LUT_SIZE; ++i)
font->lut[i] = -1;
// Read in the font data.
font->dataSize = dataSize;
font->data = data;
font->freeData = (unsigned char)freeData;
// Init font
stash->nscratch = 0;
if (!fons__tt_loadFont(stash, &font->font, data, dataSize, fontIndex)) goto error;
// Store normalized line height. The real line height is got
// by multiplying the lineh by font size.
fons__tt_getFontVMetrics( &font->font, &ascent, &descent, &lineGap);
ascent += lineGap;
fh = ascent - descent;
font->ascender = (float)ascent / (float)fh;
font->descender = (float)descent / (float)fh;
font->lineh = font->ascender - font->descender;
return idx;
error:
fons__freeFont(font);
stash->nfonts--;
return FONS_INVALID;
}
int fonsGetFontByName(FONScontext* s, const char* name)
{
int i;
for (i = 0; i < s->nfonts; i++) {
if (strcmp(s->fonts[i]->name, name) == 0)
return i;
}
return FONS_INVALID;
}
static FONSglyph* fons__allocGlyph(FONSfont* font)
{
if (font->nglyphs+1 > font->cglyphs) {
font->cglyphs = font->cglyphs == 0 ? 8 : font->cglyphs * 2;
font->glyphs = (FONSglyph*)realloc(font->glyphs, sizeof(FONSglyph) * font->cglyphs);
if (font->glyphs == NULL) return NULL;
}
font->nglyphs++;
return &font->glyphs[font->nglyphs-1];
}
// Based on Exponential blur, Jani Huhtanen, 2006
#define APREC 16
#define ZPREC 7
static void fons__blurCols(unsigned char* dst, int w, int h, int dstStride, int alpha)
{
int x, y;
for (y = 0; y < h; y++) {
int z = 0; // force zero border
for (x = 1; x < w; x++) {
z += (alpha * (((int)(dst[x]) << ZPREC) - z)) >> APREC;
dst[x] = (unsigned char)(z >> ZPREC);
}
dst[w-1] = 0; // force zero border
z = 0;
for (x = w-2; x >= 0; x--) {
z += (alpha * (((int)(dst[x]) << ZPREC) - z)) >> APREC;
dst[x] = (unsigned char)(z >> ZPREC);
}
dst[0] = 0; // force zero border
dst += dstStride;
}
}
static void fons__blurRows(unsigned char* dst, int w, int h, int dstStride, int alpha)
{
int x, y;
for (x = 0; x < w; x++) {
int z = 0; // force zero border
for (y = dstStride; y < h*dstStride; y += dstStride) {
z += (alpha * (((int)(dst[y]) << ZPREC) - z)) >> APREC;
dst[y] = (unsigned char)(z >> ZPREC);
}
dst[(h-1)*dstStride] = 0; // force zero border
z = 0;
for (y = (h-2)*dstStride; y >= 0; y -= dstStride) {
z += (alpha * (((int)(dst[y]) << ZPREC) - z)) >> APREC;
dst[y] = (unsigned char)(z >> ZPREC);
}
dst[0] = 0; // force zero border
dst++;
}
}
static void fons__blur(FONScontext* stash, unsigned char* dst, int w, int h, int dstStride, int blur)
{
int alpha;
float sigma;
(void)stash;
if (blur < 1)
return;
// Calculate the alpha such that 90% of the kernel is within the radius. (Kernel extends to infinity)
sigma = (float)blur * 0.57735f; // 1 / sqrt(3)
alpha = (int)((1<<APREC) * (1.0f - expf(-2.3f / (sigma+1.0f))));
fons__blurRows(dst, w, h, dstStride, alpha);
fons__blurCols(dst, w, h, dstStride, alpha);
fons__blurRows(dst, w, h, dstStride, alpha);
fons__blurCols(dst, w, h, dstStride, alpha);
// fons__blurrows(dst, w, h, dstStride, alpha);
// fons__blurcols(dst, w, h, dstStride, alpha);
}
static FONSglyph* fons__getGlyph(FONScontext* stash, FONSfont* font, unsigned int codepoint,
short isize, short iblur, int bitmapOption)
{
int i, g, advance, lsb, x0, y0, x1, y1, gw, gh, gx, gy, x, y;
float scale;
FONSglyph* glyph = NULL;
unsigned int h;
float size = isize/10.0f;
int pad, added;
unsigned char* bdst;
unsigned char* dst;
FONSfont* renderFont = font;
if (isize < 2) return NULL;
if (iblur > 20) iblur = 20;
pad = iblur+2;
// Reset allocator.
stash->nscratch = 0;
// Find code point and size.
h = fons__hashint(codepoint) & (FONS_HASH_LUT_SIZE-1);
i = font->lut[h];
while (i != -1) {
if (font->glyphs[i].codepoint == codepoint && font->glyphs[i].size == isize && font->glyphs[i].blur == iblur) {
glyph = &font->glyphs[i];
if (bitmapOption == FONS_GLYPH_BITMAP_OPTIONAL || (glyph->x0 >= 0 && glyph->y0 >= 0)) {
return glyph;
}
// At this point, glyph exists but the bitmap data is not yet created.
break;
}
i = font->glyphs[i].next;
}
// Create a new glyph or rasterize bitmap data for a cached glyph.
g = fons__tt_getGlyphIndex(&font->font, codepoint);
// Try to find the glyph in fallback fonts.
if (g == 0) {
for (i = 0; i < font->nfallbacks; ++i) {
FONSfont* fallbackFont = stash->fonts[font->fallbacks[i]];
int fallbackIndex = fons__tt_getGlyphIndex(&fallbackFont->font, codepoint);
if (fallbackIndex != 0) {
g = fallbackIndex;
renderFont = fallbackFont;
break;
}
}
// It is possible that we did not find a fallback glyph.
// In that case the glyph index 'g' is 0, and we'll proceed below and cache empty glyph.
}
scale = fons__tt_getPixelHeightScale(&renderFont->font, size);
fons__tt_buildGlyphBitmap(&renderFont->font, g, size, scale, &advance, &lsb, &x0, &y0, &x1, &y1);
gw = x1-x0 + pad*2;
gh = y1-y0 + pad*2;
// Determines the spot to draw glyph in the atlas.
if (bitmapOption == FONS_GLYPH_BITMAP_REQUIRED) {
// Find free spot for the rect in the atlas
added = fons__atlasAddRect(stash->atlas, gw, gh, &gx, &gy);
if (added == 0 && stash->handleError != NULL) {
// Atlas is full, let the user to resize the atlas (or not), and try again.
stash->handleError(stash->errorUptr, FONS_ATLAS_FULL, 0);
added = fons__atlasAddRect(stash->atlas, gw, gh, &gx, &gy);
}
if (added == 0) return NULL;
} else {
// Negative coordinate indicates there is no bitmap data created.
gx = -1;
gy = -1;
}
// Init glyph.
if (glyph == NULL) {
glyph = fons__allocGlyph(font);
glyph->codepoint = codepoint;
glyph->size = isize;
glyph->blur = iblur;
glyph->next = 0;
// Insert char to hash lookup.
glyph->next = font->lut[h];
font->lut[h] = font->nglyphs-1;
}
glyph->index = g;
glyph->x0 = (short)gx;
glyph->y0 = (short)gy;
glyph->x1 = (short)(glyph->x0+gw);
glyph->y1 = (short)(glyph->y0+gh);
glyph->xadv = (short)(scale * advance * 10.0f);
glyph->xoff = (short)(x0 - pad);
glyph->yoff = (short)(y0 - pad);
if (bitmapOption == FONS_GLYPH_BITMAP_OPTIONAL) {
return glyph;
}
// Rasterize
dst = &stash->texData[(glyph->x0+pad) + (glyph->y0+pad) * stash->params.width];
fons__tt_renderGlyphBitmap(&renderFont->font, dst, gw-pad*2,gh-pad*2, stash->params.width, scale, scale, g);
// Make sure there is one pixel empty border.
dst = &stash->texData[glyph->x0 + glyph->y0 * stash->params.width];
for (y = 0; y < gh; y++) {
dst[y*stash->params.width] = 0;
dst[gw-1 + y*stash->params.width] = 0;
}
for (x = 0; x < gw; x++) {
dst[x] = 0;
dst[x + (gh-1)*stash->params.width] = 0;
}
// Debug code to color the glyph background
/* unsigned char* fdst = &stash->texData[glyph->x0 + glyph->y0 * stash->params.width];
for (y = 0; y < gh; y++) {
for (x = 0; x < gw; x++) {
int a = (int)fdst[x+y*stash->params.width] + 20;
if (a > 255) a = 255;
fdst[x+y*stash->params.width] = a;
}
}*/
// Blur
if (iblur > 0) {
stash->nscratch = 0;
bdst = &stash->texData[glyph->x0 + glyph->y0 * stash->params.width];
fons__blur(stash, bdst, gw, gh, stash->params.width, iblur);
}
stash->dirtyRect[0] = fons__mini(stash->dirtyRect[0], glyph->x0);
stash->dirtyRect[1] = fons__mini(stash->dirtyRect[1], glyph->y0);
stash->dirtyRect[2] = fons__maxi(stash->dirtyRect[2], glyph->x1);
stash->dirtyRect[3] = fons__maxi(stash->dirtyRect[3], glyph->y1);
return glyph;
}
static void fons__getQuad(FONScontext* stash, FONSfont* font,
int prevGlyphIndex, FONSglyph* glyph,
float scale, float spacing, float* x, float* y, FONSquad* q)
{
float rx,ry,xoff,yoff,x0,y0,x1,y1;
if (prevGlyphIndex != -1) {
float adv = fons__tt_getGlyphKernAdvance(&font->font, prevGlyphIndex, glyph->index) * scale;
*x += (int)(adv + spacing + 0.5f);
}
// Each glyph has 2px border to allow good interpolation,
// one pixel to prevent leaking, and one to allow good interpolation for rendering.
// Inset the texture region by one pixel for correct interpolation.
xoff = (short)(glyph->xoff+1);
yoff = (short)(glyph->yoff+1);
x0 = (float)(glyph->x0+1);
y0 = (float)(glyph->y0+1);
x1 = (float)(glyph->x1-1);
y1 = (float)(glyph->y1-1);
if (stash->params.flags & FONS_ZERO_TOPLEFT) {
rx = floorf(*x + xoff);
ry = floorf(*y + yoff);
q->x0 = rx;
q->y0 = ry;
q->x1 = rx + x1 - x0;
q->y1 = ry + y1 - y0;
q->s0 = x0 * stash->itw;
q->t0 = y0 * stash->ith;
q->s1 = x1 * stash->itw;
q->t1 = y1 * stash->ith;
} else {
rx = floorf(*x + xoff);
ry = floorf(*y - yoff);
q->x0 = rx;
q->y0 = ry;
q->x1 = rx + x1 - x0;
q->y1 = ry - y1 + y0;
q->s0 = x0 * stash->itw;
q->t0 = y0 * stash->ith;
q->s1 = x1 * stash->itw;
q->t1 = y1 * stash->ith;
}
*x += (int)(glyph->xadv / 10.0f + 0.5f);
}
static void fons__flush(FONScontext* stash)
{
// Flush texture
if (stash->dirtyRect[0] < stash->dirtyRect[2] && stash->dirtyRect[1] < stash->dirtyRect[3]) {
if (stash->params.renderUpdate != NULL)
stash->params.renderUpdate(stash->params.userPtr, stash->dirtyRect, stash->texData);
// Reset dirty rect
stash->dirtyRect[0] = stash->params.width;
stash->dirtyRect[1] = stash->params.height;
stash->dirtyRect[2] = 0;
stash->dirtyRect[3] = 0;
}
// Flush triangles
if (stash->nverts > 0) {
if (stash->params.renderDraw != NULL)
stash->params.renderDraw(stash->params.userPtr, stash->verts, stash->tcoords, stash->colors, stash->nverts);
stash->nverts = 0;
}
}
static __inline void fons__vertex(FONScontext* stash, float x, float y, float s, float t, unsigned int c)
{
stash->verts[stash->nverts*2+0] = x;
stash->verts[stash->nverts*2+1] = y;
stash->tcoords[stash->nverts*2+0] = s;
stash->tcoords[stash->nverts*2+1] = t;
stash->colors[stash->nverts] = c;
stash->nverts++;
}
static float fons__getVertAlign(FONScontext* stash, FONSfont* font, int align, short isize)
{
if (stash->params.flags & FONS_ZERO_TOPLEFT) {
if (align & FONS_ALIGN_TOP) {
return font->ascender * (float)isize/10.0f;
} else if (align & FONS_ALIGN_MIDDLE) {
return (font->ascender + font->descender) / 2.0f * (float)isize/10.0f;
} else if (align & FONS_ALIGN_BASELINE) {
return 0.0f;
} else if (align & FONS_ALIGN_BOTTOM) {
return font->descender * (float)isize/10.0f;
}
} else {
if (align & FONS_ALIGN_TOP) {
return -font->ascender * (float)isize/10.0f;
} else if (align & FONS_ALIGN_MIDDLE) {
return -(font->ascender + font->descender) / 2.0f * (float)isize/10.0f;
} else if (align & FONS_ALIGN_BASELINE) {
return 0.0f;
} else if (align & FONS_ALIGN_BOTTOM) {
return -font->descender * (float)isize/10.0f;
}
}
return 0.0;
}
float fonsDrawText(FONScontext* stash,
float x, float y,
const char* str, const char* end)
{
FONSstate* state = fons__getState(stash);
unsigned int codepoint;
unsigned int utf8state = 0;
FONSglyph* glyph = NULL;
FONSquad q;
int prevGlyphIndex = -1;
short isize = (short)(state->size*10.0f);
short iblur = (short)state->blur;
float scale;
FONSfont* font;
float width;
if (stash == NULL) return x;
if (state->font < 0 || state->font >= stash->nfonts) return x;
font = stash->fonts[state->font];
if (font->data == NULL) return x;
scale = fons__tt_getPixelHeightScale(&font->font, (float)isize/10.0f);
if (end == NULL)
end = str + strlen(str);
// Align horizontally
if (state->align & FONS_ALIGN_LEFT) {
// empty
} else if (state->align & FONS_ALIGN_RIGHT) {
width = fonsTextBounds(stash, x,y, str, end, NULL);
x -= width;
} else if (state->align & FONS_ALIGN_CENTER) {
width = fonsTextBounds(stash, x,y, str, end, NULL);
x -= width * 0.5f;
}
// Align vertically.
y += fons__getVertAlign(stash, font, state->align, isize);
for (; str != end; ++str) {
if (fons__decutf8(&utf8state, &codepoint, *(const unsigned char*)str))
continue;
glyph = fons__getGlyph(stash, font, codepoint, isize, iblur, FONS_GLYPH_BITMAP_REQUIRED);
if (glyph != NULL) {
fons__getQuad(stash, font, prevGlyphIndex, glyph, scale, state->spacing, &x, &y, &q);
if (stash->nverts+6 > FONS_VERTEX_COUNT)
fons__flush(stash);
fons__vertex(stash, q.x0, q.y0, q.s0, q.t0, state->color);
fons__vertex(stash, q.x1, q.y1, q.s1, q.t1, state->color);
fons__vertex(stash, q.x1, q.y0, q.s1, q.t0, state->color);
fons__vertex(stash, q.x0, q.y0, q.s0, q.t0, state->color);
fons__vertex(stash, q.x0, q.y1, q.s0, q.t1, state->color);
fons__vertex(stash, q.x1, q.y1, q.s1, q.t1, state->color);
}
prevGlyphIndex = glyph != NULL ? glyph->index : -1;
}
fons__flush(stash);
return x;
}
int fonsTextIterInit(FONScontext* stash, FONStextIter* iter,
float x, float y, const char* str, const char* end, int bitmapOption)
{
FONSstate* state = fons__getState(stash);
float width;
memset(iter, 0, sizeof(*iter));
if (stash == NULL) return 0;
if (state->font < 0 || state->font >= stash->nfonts) return 0;
iter->font = stash->fonts[state->font];
if (iter->font->data == NULL) return 0;
iter->isize = (short)(state->size*10.0f);
iter->iblur = (short)state->blur;
iter->scale = fons__tt_getPixelHeightScale(&iter->font->font, (float)iter->isize/10.0f);
// Align horizontally
if (state->align & FONS_ALIGN_LEFT) {
// empty
} else if (state->align & FONS_ALIGN_RIGHT) {
width = fonsTextBounds(stash, x,y, str, end, NULL);
x -= width;
} else if (state->align & FONS_ALIGN_CENTER) {
width = fonsTextBounds(stash, x,y, str, end, NULL);
x -= width * 0.5f;
}
// Align vertically.
y += fons__getVertAlign(stash, iter->font, state->align, iter->isize);
if (end == NULL)
end = str + strlen(str);
iter->x = iter->nextx = x;
iter->y = iter->nexty = y;
iter->spacing = state->spacing;
iter->str = str;
iter->next = str;
iter->end = end;
iter->codepoint = 0;
iter->prevGlyphIndex = -1;
iter->bitmapOption = bitmapOption;
return 1;
}
int fonsTextIterNext(FONScontext* stash, FONStextIter* iter, FONSquad* quad)
{
FONSglyph* glyph = NULL;
const char* str = iter->next;
iter->str = iter->next;
if (str == iter->end)
return 0;
for (; str != iter->end; str++) {
if (fons__decutf8(&iter->utf8state, &iter->codepoint, *(const unsigned char*)str))
continue;
str++;
// Get glyph and quad
iter->x = iter->nextx;
iter->y = iter->nexty;
glyph = fons__getGlyph(stash, iter->font, iter->codepoint, iter->isize, iter->iblur, iter->bitmapOption);
// If the iterator was initialized with FONS_GLYPH_BITMAP_OPTIONAL, then the UV coordinates of the quad will be invalid.
if (glyph != NULL)
fons__getQuad(stash, iter->font, iter->prevGlyphIndex, glyph, iter->scale, iter->spacing, &iter->nextx, &iter->nexty, quad);
iter->prevGlyphIndex = glyph != NULL ? glyph->index : -1;
break;
}
iter->next = str;
return 1;
}
void fonsDrawDebug(FONScontext* stash, float x, float y)
{
int i;
int w = stash->params.width;
int h = stash->params.height;
float u = w == 0 ? 0 : (1.0f / w);
float v = h == 0 ? 0 : (1.0f / h);
if (stash->nverts+6+6 > FONS_VERTEX_COUNT)
fons__flush(stash);
// Draw background
fons__vertex(stash, x+0, y+0, u, v, 0x0fffffff);
fons__vertex(stash, x+w, y+h, u, v, 0x0fffffff);
fons__vertex(stash, x+w, y+0, u, v, 0x0fffffff);
fons__vertex(stash, x+0, y+0, u, v, 0x0fffffff);
fons__vertex(stash, x+0, y+h, u, v, 0x0fffffff);
fons__vertex(stash, x+w, y+h, u, v, 0x0fffffff);
// Draw texture
fons__vertex(stash, x+0, y+0, 0, 0, 0xffffffff);
fons__vertex(stash, x+w, y+h, 1, 1, 0xffffffff);
fons__vertex(stash, x+w, y+0, 1, 0, 0xffffffff);
fons__vertex(stash, x+0, y+0, 0, 0, 0xffffffff);
fons__vertex(stash, x+0, y+h, 0, 1, 0xffffffff);
fons__vertex(stash, x+w, y+h, 1, 1, 0xffffffff);
// Drawbug draw atlas
for (i = 0; i < stash->atlas->nnodes; i++) {
FONSatlasNode* n = &stash->atlas->nodes[i];
if (stash->nverts+6 > FONS_VERTEX_COUNT)
fons__flush(stash);
fons__vertex(stash, x+n->x+0, y+n->y+0, u, v, 0xc00000ff);
fons__vertex(stash, x+n->x+n->width, y+n->y+1, u, v, 0xc00000ff);
fons__vertex(stash, x+n->x+n->width, y+n->y+0, u, v, 0xc00000ff);
fons__vertex(stash, x+n->x+0, y+n->y+0, u, v, 0xc00000ff);
fons__vertex(stash, x+n->x+0, y+n->y+1, u, v, 0xc00000ff);
fons__vertex(stash, x+n->x+n->width, y+n->y+1, u, v, 0xc00000ff);
}
fons__flush(stash);
}
float fonsTextBounds(FONScontext* stash,
float x, float y,
const char* str, const char* end,
float* bounds)
{
FONSstate* state = fons__getState(stash);
unsigned int codepoint;
unsigned int utf8state = 0;
FONSquad q;
FONSglyph* glyph = NULL;
int prevGlyphIndex = -1;
short isize = (short)(state->size*10.0f);
short iblur = (short)state->blur;
float scale;
FONSfont* font;
float startx, advance;
float minx, miny, maxx, maxy;
if (stash == NULL) return 0;
if (state->font < 0 || state->font >= stash->nfonts) return 0;
font = stash->fonts[state->font];
if (font->data == NULL) return 0;
scale = fons__tt_getPixelHeightScale(&font->font, (float)isize/10.0f);
// Align vertically.
y += fons__getVertAlign(stash, font, state->align, isize);
minx = maxx = x;
miny = maxy = y;
startx = x;
if (end == NULL)
end = str + strlen(str);
for (; str != end; ++str) {
if (fons__decutf8(&utf8state, &codepoint, *(const unsigned char*)str))
continue;
glyph = fons__getGlyph(stash, font, codepoint, isize, iblur, FONS_GLYPH_BITMAP_OPTIONAL);
if (glyph != NULL) {
fons__getQuad(stash, font, prevGlyphIndex, glyph, scale, state->spacing, &x, &y, &q);
if (q.x0 < minx) minx = q.x0;
if (q.x1 > maxx) maxx = q.x1;
if (stash->params.flags & FONS_ZERO_TOPLEFT) {
if (q.y0 < miny) miny = q.y0;
if (q.y1 > maxy) maxy = q.y1;
} else {
if (q.y1 < miny) miny = q.y1;
if (q.y0 > maxy) maxy = q.y0;
}
}
prevGlyphIndex = glyph != NULL ? glyph->index : -1;
}
advance = x - startx;
// Align horizontally
if (state->align & FONS_ALIGN_LEFT) {
// empty
} else if (state->align & FONS_ALIGN_RIGHT) {
minx -= advance;
maxx -= advance;
} else if (state->align & FONS_ALIGN_CENTER) {
minx -= advance * 0.5f;
maxx -= advance * 0.5f;
}
if (bounds) {
bounds[0] = minx;
bounds[1] = miny;
bounds[2] = maxx;
bounds[3] = maxy;
}
return advance;
}
void fonsVertMetrics(FONScontext* stash,
float* ascender, float* descender, float* lineh)
{
FONSfont* font;
FONSstate* state = fons__getState(stash);
short isize;
if (stash == NULL) return;
if (state->font < 0 || state->font >= stash->nfonts) return;
font = stash->fonts[state->font];
isize = (short)(state->size*10.0f);
if (font->data == NULL) return;
if (ascender)
*ascender = font->ascender*isize/10.0f;
if (descender)
*descender = font->descender*isize/10.0f;
if (lineh)
*lineh = font->lineh*isize/10.0f;
}
void fonsLineBounds(FONScontext* stash, float y, float* miny, float* maxy)
{
FONSfont* font;
FONSstate* state = fons__getState(stash);
short isize;
if (stash == NULL) return;
if (state->font < 0 || state->font >= stash->nfonts) return;
font = stash->fonts[state->font];
isize = (short)(state->size*10.0f);
if (font->data == NULL) return;
y += fons__getVertAlign(stash, font, state->align, isize);
if (stash->params.flags & FONS_ZERO_TOPLEFT) {
*miny = y - font->ascender * (float)isize/10.0f;
*maxy = *miny + font->lineh*isize/10.0f;
} else {
*maxy = y + font->descender * (float)isize/10.0f;
*miny = *maxy - font->lineh*isize/10.0f;
}
}
const unsigned char* fonsGetTextureData(FONScontext* stash, int* width, int* height)
{
if (width != NULL)
*width = stash->params.width;
if (height != NULL)
*height = stash->params.height;
return stash->texData;
}
int fonsValidateTexture(FONScontext* stash, int* dirty)
{
if (stash->dirtyRect[0] < stash->dirtyRect[2] && stash->dirtyRect[1] < stash->dirtyRect[3]) {
dirty[0] = stash->dirtyRect[0];
dirty[1] = stash->dirtyRect[1];
dirty[2] = stash->dirtyRect[2];
dirty[3] = stash->dirtyRect[3];
// Reset dirty rect
stash->dirtyRect[0] = stash->params.width;
stash->dirtyRect[1] = stash->params.height;
stash->dirtyRect[2] = 0;
stash->dirtyRect[3] = 0;
return 1;
}
return 0;
}
void fonsDeleteInternal(FONScontext* stash)
{
int i;
if (stash == NULL) return;
if (stash->params.renderDelete)
stash->params.renderDelete(stash->params.userPtr);
for (i = 0; i < stash->nfonts; ++i)
fons__freeFont(stash->fonts[i]);
if (stash->atlas) fons__deleteAtlas(stash->atlas);
if (stash->fonts) free(stash->fonts);
if (stash->texData) free(stash->texData);
if (stash->scratch) free(stash->scratch);
fons__tt_done(stash);
free(stash);
}
void fonsSetErrorCallback(FONScontext* stash, void (*callback)(void* uptr, int error, int val), void* uptr)
{
if (stash == NULL) return;
stash->handleError = callback;
stash->errorUptr = uptr;
}
void fonsGetAtlasSize(FONScontext* stash, int* width, int* height)
{
if (stash == NULL) return;
*width = stash->params.width;
*height = stash->params.height;
}
int fonsExpandAtlas(FONScontext* stash, int width, int height)
{
int i, maxy = 0;
unsigned char* data = NULL;
if (stash == NULL) return 0;
width = fons__maxi(width, stash->params.width);
height = fons__maxi(height, stash->params.height);
if (width == stash->params.width && height == stash->params.height)
return 1;
// Flush pending glyphs.
fons__flush(stash);
// Create new texture
if (stash->params.renderResize != NULL) {
if (stash->params.renderResize(stash->params.userPtr, width, height) == 0)
return 0;
}
// Copy old texture data over.
data = (unsigned char*)malloc(width * height);
if (data == NULL)
return 0;
for (i = 0; i < stash->params.height; i++) {
unsigned char* dst = &data[i*width];
unsigned char* src = &stash->texData[i*stash->params.width];
memcpy(dst, src, stash->params.width);
if (width > stash->params.width)
memset(dst+stash->params.width, 0, width - stash->params.width);
}
if (height > stash->params.height)
memset(&data[stash->params.height * width], 0, (height - stash->params.height) * width);
free(stash->texData);
stash->texData = data;
// Increase atlas size
fons__atlasExpand(stash->atlas, width, height);
// Add existing data as dirty.
for (i = 0; i < stash->atlas->nnodes; i++)
maxy = fons__maxi(maxy, stash->atlas->nodes[i].y);
stash->dirtyRect[0] = 0;
stash->dirtyRect[1] = 0;
stash->dirtyRect[2] = stash->params.width;
stash->dirtyRect[3] = maxy;
stash->params.width = width;
stash->params.height = height;
stash->itw = 1.0f/stash->params.width;
stash->ith = 1.0f/stash->params.height;
return 1;
}
int fonsResetAtlas(FONScontext* stash, int width, int height)
{
int i, j;
if (stash == NULL) return 0;
// Flush pending glyphs.
fons__flush(stash);
// Create new texture
if (stash->params.renderResize != NULL) {
if (stash->params.renderResize(stash->params.userPtr, width, height) == 0)
return 0;
}
// Reset atlas
fons__atlasReset(stash->atlas, width, height);
// Clear texture data.
stash->texData = (unsigned char*)realloc(stash->texData, width * height);
if (stash->texData == NULL) return 0;
memset(stash->texData, 0, width * height);
// Reset dirty rect
stash->dirtyRect[0] = width;
stash->dirtyRect[1] = height;
stash->dirtyRect[2] = 0;
stash->dirtyRect[3] = 0;
// Reset cached glyphs
for (i = 0; i < stash->nfonts; i++) {
FONSfont* font = stash->fonts[i];
font->nglyphs = 0;
for (j = 0; j < FONS_HASH_LUT_SIZE; j++)
font->lut[j] = -1;
}
stash->params.width = width;
stash->params.height = height;
stash->itw = 1.0f/stash->params.width;
stash->ith = 1.0f/stash->params.height;
// Add white rect at 0,0 for debug drawing.
fons__addWhiteRect(stash, 2,2);
return 1;
}
#endif
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
src/nanovg.c | C | //
// Copyright (c) 2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <memory.h>
#include "nanovg.h"
#define FONTSTASH_IMPLEMENTATION
#include "fontstash.h"
#ifndef NVG_NO_STB
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
#endif
#ifdef _MSC_VER
#pragma warning(disable: 4100) // unreferenced formal parameter
#pragma warning(disable: 4127) // conditional expression is constant
#pragma warning(disable: 4204) // nonstandard extension used : non-constant aggregate initializer
#pragma warning(disable: 4706) // assignment within conditional expression
#endif
#define NVG_INIT_FONTIMAGE_SIZE 512
#define NVG_MAX_FONTIMAGE_SIZE 2048
#define NVG_MAX_FONTIMAGES 4
#define NVG_INIT_COMMANDS_SIZE 256
#define NVG_INIT_POINTS_SIZE 128
#define NVG_INIT_PATHS_SIZE 16
#define NVG_INIT_VERTS_SIZE 256
#ifndef NVG_MAX_STATES
#define NVG_MAX_STATES 32
#endif
#define NVG_KAPPA90 0.5522847493f // Length proportional to radius of a cubic bezier handle for 90deg arcs.
#define NVG_COUNTOF(arr) (sizeof(arr) / sizeof(0[arr]))
enum NVGcommands {
NVG_MOVETO = 0,
NVG_LINETO = 1,
NVG_BEZIERTO = 2,
NVG_CLOSE = 3,
NVG_WINDING = 4,
};
enum NVGpointFlags
{
NVG_PT_CORNER = 0x01,
NVG_PT_LEFT = 0x02,
NVG_PT_BEVEL = 0x04,
NVG_PR_INNERBEVEL = 0x08,
};
struct NVGstate {
NVGcompositeOperationState compositeOperation;
int shapeAntiAlias;
NVGpaint fill;
NVGpaint stroke;
float strokeWidth;
float miterLimit;
int lineJoin;
int lineCap;
float alpha;
float xform[6];
NVGscissor scissor;
float fontSize;
float letterSpacing;
float lineHeight;
float fontBlur;
int textAlign;
int fontId;
};
typedef struct NVGstate NVGstate;
struct NVGpoint {
float x,y;
float dx, dy;
float len;
float dmx, dmy;
unsigned char flags;
};
typedef struct NVGpoint NVGpoint;
struct NVGpathCache {
NVGpoint* points;
int npoints;
int cpoints;
NVGpath* paths;
int npaths;
int cpaths;
NVGvertex* verts;
int nverts;
int cverts;
float bounds[4];
};
typedef struct NVGpathCache NVGpathCache;
struct NVGcontext {
NVGparams params;
float* commands;
int ccommands;
int ncommands;
float commandx, commandy;
NVGstate states[NVG_MAX_STATES];
int nstates;
NVGpathCache* cache;
float tessTol;
float distTol;
float fringeWidth;
float devicePxRatio;
struct FONScontext* fs;
int fontImages[NVG_MAX_FONTIMAGES];
int fontImageIdx;
int drawCallCount;
int fillTriCount;
int strokeTriCount;
int textTriCount;
};
static float nvg__sqrtf(float a) { return sqrtf(a); }
static float nvg__modf(float a, float b) { return fmodf(a, b); }
static float nvg__sinf(float a) { return sinf(a); }
static float nvg__cosf(float a) { return cosf(a); }
static float nvg__tanf(float a) { return tanf(a); }
static float nvg__atan2f(float a,float b) { return atan2f(a, b); }
static float nvg__acosf(float a) { return acosf(a); }
static int nvg__mini(int a, int b) { return a < b ? a : b; }
static int nvg__maxi(int a, int b) { return a > b ? a : b; }
static int nvg__clampi(int a, int mn, int mx) { return a < mn ? mn : (a > mx ? mx : a); }
static float nvg__minf(float a, float b) { return a < b ? a : b; }
static float nvg__maxf(float a, float b) { return a > b ? a : b; }
static float nvg__absf(float a) { return a >= 0.0f ? a : -a; }
static float nvg__signf(float a) { return a >= 0.0f ? 1.0f : -1.0f; }
static float nvg__clampf(float a, float mn, float mx) { return a < mn ? mn : (a > mx ? mx : a); }
static float nvg__cross(float dx0, float dy0, float dx1, float dy1) { return dx1*dy0 - dx0*dy1; }
static float nvg__normalize(float *x, float* y)
{
float d = nvg__sqrtf((*x)*(*x) + (*y)*(*y));
if (d > 1e-6f) {
float id = 1.0f / d;
*x *= id;
*y *= id;
}
return d;
}
static void nvg__deletePathCache(NVGpathCache* c)
{
if (c == NULL) return;
if (c->points != NULL) free(c->points);
if (c->paths != NULL) free(c->paths);
if (c->verts != NULL) free(c->verts);
free(c);
}
static NVGpathCache* nvg__allocPathCache(void)
{
NVGpathCache* c = (NVGpathCache*)malloc(sizeof(NVGpathCache));
if (c == NULL) goto error;
memset(c, 0, sizeof(NVGpathCache));
c->points = (NVGpoint*)malloc(sizeof(NVGpoint)*NVG_INIT_POINTS_SIZE);
if (!c->points) goto error;
c->npoints = 0;
c->cpoints = NVG_INIT_POINTS_SIZE;
c->paths = (NVGpath*)malloc(sizeof(NVGpath)*NVG_INIT_PATHS_SIZE);
if (!c->paths) goto error;
c->npaths = 0;
c->cpaths = NVG_INIT_PATHS_SIZE;
c->verts = (NVGvertex*)malloc(sizeof(NVGvertex)*NVG_INIT_VERTS_SIZE);
if (!c->verts) goto error;
c->nverts = 0;
c->cverts = NVG_INIT_VERTS_SIZE;
return c;
error:
nvg__deletePathCache(c);
return NULL;
}
static void nvg__setDevicePixelRatio(NVGcontext* ctx, float ratio)
{
ctx->tessTol = 0.25f / ratio;
ctx->distTol = 0.01f / ratio;
ctx->fringeWidth = 1.0f / ratio;
ctx->devicePxRatio = ratio;
}
static NVGcompositeOperationState nvg__compositeOperationState(int op)
{
int sfactor, dfactor;
if (op == NVG_SOURCE_OVER)
{
sfactor = NVG_ONE;
dfactor = NVG_ONE_MINUS_SRC_ALPHA;
}
else if (op == NVG_SOURCE_IN)
{
sfactor = NVG_DST_ALPHA;
dfactor = NVG_ZERO;
}
else if (op == NVG_SOURCE_OUT)
{
sfactor = NVG_ONE_MINUS_DST_ALPHA;
dfactor = NVG_ZERO;
}
else if (op == NVG_ATOP)
{
sfactor = NVG_DST_ALPHA;
dfactor = NVG_ONE_MINUS_SRC_ALPHA;
}
else if (op == NVG_DESTINATION_OVER)
{
sfactor = NVG_ONE_MINUS_DST_ALPHA;
dfactor = NVG_ONE;
}
else if (op == NVG_DESTINATION_IN)
{
sfactor = NVG_ZERO;
dfactor = NVG_SRC_ALPHA;
}
else if (op == NVG_DESTINATION_OUT)
{
sfactor = NVG_ZERO;
dfactor = NVG_ONE_MINUS_SRC_ALPHA;
}
else if (op == NVG_DESTINATION_ATOP)
{
sfactor = NVG_ONE_MINUS_DST_ALPHA;
dfactor = NVG_SRC_ALPHA;
}
else if (op == NVG_LIGHTER)
{
sfactor = NVG_ONE;
dfactor = NVG_ONE;
}
else if (op == NVG_COPY)
{
sfactor = NVG_ONE;
dfactor = NVG_ZERO;
}
else if (op == NVG_XOR)
{
sfactor = NVG_ONE_MINUS_DST_ALPHA;
dfactor = NVG_ONE_MINUS_SRC_ALPHA;
}
else
{
sfactor = NVG_ONE;
dfactor = NVG_ZERO;
}
NVGcompositeOperationState state;
state.srcRGB = sfactor;
state.dstRGB = dfactor;
state.srcAlpha = sfactor;
state.dstAlpha = dfactor;
return state;
}
static NVGstate* nvg__getState(NVGcontext* ctx)
{
return &ctx->states[ctx->nstates-1];
}
NVGcontext* nvgCreateInternal(NVGparams* params)
{
FONSparams fontParams;
NVGcontext* ctx = (NVGcontext*)malloc(sizeof(NVGcontext));
int i;
if (ctx == NULL) goto error;
memset(ctx, 0, sizeof(NVGcontext));
ctx->params = *params;
for (i = 0; i < NVG_MAX_FONTIMAGES; i++)
ctx->fontImages[i] = 0;
ctx->commands = (float*)malloc(sizeof(float)*NVG_INIT_COMMANDS_SIZE);
if (!ctx->commands) goto error;
ctx->ncommands = 0;
ctx->ccommands = NVG_INIT_COMMANDS_SIZE;
ctx->cache = nvg__allocPathCache();
if (ctx->cache == NULL) goto error;
nvgSave(ctx);
nvgReset(ctx);
nvg__setDevicePixelRatio(ctx, 1.0f);
if (ctx->params.renderCreate(ctx->params.userPtr) == 0) goto error;
// Init font rendering
memset(&fontParams, 0, sizeof(fontParams));
fontParams.width = NVG_INIT_FONTIMAGE_SIZE;
fontParams.height = NVG_INIT_FONTIMAGE_SIZE;
fontParams.flags = FONS_ZERO_TOPLEFT;
fontParams.renderCreate = NULL;
fontParams.renderUpdate = NULL;
fontParams.renderDraw = NULL;
fontParams.renderDelete = NULL;
fontParams.userPtr = NULL;
ctx->fs = fonsCreateInternal(&fontParams);
if (ctx->fs == NULL) goto error;
// Create font texture
ctx->fontImages[0] = ctx->params.renderCreateTexture(ctx->params.userPtr, NVG_TEXTURE_ALPHA, fontParams.width, fontParams.height, 0, NULL);
if (ctx->fontImages[0] == 0) goto error;
ctx->fontImageIdx = 0;
return ctx;
error:
nvgDeleteInternal(ctx);
return 0;
}
NVGparams* nvgInternalParams(NVGcontext* ctx)
{
return &ctx->params;
}
void nvgDeleteInternal(NVGcontext* ctx)
{
int i;
if (ctx == NULL) return;
if (ctx->commands != NULL) free(ctx->commands);
if (ctx->cache != NULL) nvg__deletePathCache(ctx->cache);
if (ctx->fs)
fonsDeleteInternal(ctx->fs);
for (i = 0; i < NVG_MAX_FONTIMAGES; i++) {
if (ctx->fontImages[i] != 0) {
nvgDeleteImage(ctx, ctx->fontImages[i]);
ctx->fontImages[i] = 0;
}
}
if (ctx->params.renderDelete != NULL)
ctx->params.renderDelete(ctx->params.userPtr);
free(ctx);
}
void nvgBeginFrame(NVGcontext* ctx, float windowWidth, float windowHeight, float devicePixelRatio)
{
/* printf("Tris: draws:%d fill:%d stroke:%d text:%d TOT:%d\n",
ctx->drawCallCount, ctx->fillTriCount, ctx->strokeTriCount, ctx->textTriCount,
ctx->fillTriCount+ctx->strokeTriCount+ctx->textTriCount);*/
ctx->nstates = 0;
nvgSave(ctx);
nvgReset(ctx);
nvg__setDevicePixelRatio(ctx, devicePixelRatio);
ctx->params.renderViewport(ctx->params.userPtr, windowWidth, windowHeight, devicePixelRatio);
ctx->drawCallCount = 0;
ctx->fillTriCount = 0;
ctx->strokeTriCount = 0;
ctx->textTriCount = 0;
}
void nvgCancelFrame(NVGcontext* ctx)
{
ctx->params.renderCancel(ctx->params.userPtr);
}
void nvgEndFrame(NVGcontext* ctx)
{
ctx->params.renderFlush(ctx->params.userPtr);
if (ctx->fontImageIdx != 0) {
int fontImage = ctx->fontImages[ctx->fontImageIdx];
ctx->fontImages[ctx->fontImageIdx] = 0;
int i, j, iw, ih;
// delete images that smaller than current one
if (fontImage == 0)
return;
nvgImageSize(ctx, fontImage, &iw, &ih);
for (i = j = 0; i < ctx->fontImageIdx; i++) {
if (ctx->fontImages[i] != 0) {
int nw, nh;
int image = ctx->fontImages[i];
ctx->fontImages[i] = 0;
nvgImageSize(ctx, image, &nw, &nh);
if (nw < iw || nh < ih)
nvgDeleteImage(ctx, image);
else
ctx->fontImages[j++] = image;
}
}
// make current font image to first
ctx->fontImages[j] = ctx->fontImages[0];
ctx->fontImages[0] = fontImage;
ctx->fontImageIdx = 0;
}
}
NVGcolor nvgRGB(unsigned char r, unsigned char g, unsigned char b)
{
return nvgRGBA(r,g,b,255);
}
NVGcolor nvgRGBf(float r, float g, float b)
{
return nvgRGBAf(r,g,b,1.0f);
}
NVGcolor nvgRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a)
{
NVGcolor color;
// Use longer initialization to suppress warning.
color.r = r / 255.0f;
color.g = g / 255.0f;
color.b = b / 255.0f;
color.a = a / 255.0f;
return color;
}
NVGcolor nvgRGBAf(float r, float g, float b, float a)
{
NVGcolor color;
// Use longer initialization to suppress warning.
color.r = r;
color.g = g;
color.b = b;
color.a = a;
return color;
}
NVGcolor nvgTransRGBA(NVGcolor c, unsigned char a)
{
c.a = a / 255.0f;
return c;
}
NVGcolor nvgTransRGBAf(NVGcolor c, float a)
{
c.a = a;
return c;
}
NVGcolor nvgLerpRGBA(NVGcolor c0, NVGcolor c1, float u)
{
int i;
float oneminu;
NVGcolor cint = {{{0}}};
u = nvg__clampf(u, 0.0f, 1.0f);
oneminu = 1.0f - u;
for( i = 0; i <4; i++ )
{
cint.rgba[i] = c0.rgba[i] * oneminu + c1.rgba[i] * u;
}
return cint;
}
NVGcolor nvgHSL(float h, float s, float l)
{
return nvgHSLA(h,s,l,255);
}
static float nvg__hue(float h, float m1, float m2)
{
if (h < 0) h += 1;
if (h > 1) h -= 1;
if (h < 1.0f/6.0f)
return m1 + (m2 - m1) * h * 6.0f;
else if (h < 3.0f/6.0f)
return m2;
else if (h < 4.0f/6.0f)
return m1 + (m2 - m1) * (2.0f/3.0f - h) * 6.0f;
return m1;
}
NVGcolor nvgHSLA(float h, float s, float l, unsigned char a)
{
float m1, m2;
NVGcolor col;
h = nvg__modf(h, 1.0f);
if (h < 0.0f) h += 1.0f;
s = nvg__clampf(s, 0.0f, 1.0f);
l = nvg__clampf(l, 0.0f, 1.0f);
m2 = l <= 0.5f ? (l * (1 + s)) : (l + s - l * s);
m1 = 2 * l - m2;
col.r = nvg__clampf(nvg__hue(h + 1.0f/3.0f, m1, m2), 0.0f, 1.0f);
col.g = nvg__clampf(nvg__hue(h, m1, m2), 0.0f, 1.0f);
col.b = nvg__clampf(nvg__hue(h - 1.0f/3.0f, m1, m2), 0.0f, 1.0f);
col.a = a/255.0f;
return col;
}
void nvgTransformIdentity(float* t)
{
t[0] = 1.0f; t[1] = 0.0f;
t[2] = 0.0f; t[3] = 1.0f;
t[4] = 0.0f; t[5] = 0.0f;
}
void nvgTransformTranslate(float* t, float tx, float ty)
{
t[0] = 1.0f; t[1] = 0.0f;
t[2] = 0.0f; t[3] = 1.0f;
t[4] = tx; t[5] = ty;
}
void nvgTransformScale(float* t, float sx, float sy)
{
t[0] = sx; t[1] = 0.0f;
t[2] = 0.0f; t[3] = sy;
t[4] = 0.0f; t[5] = 0.0f;
}
void nvgTransformRotate(float* t, float a)
{
float cs = nvg__cosf(a), sn = nvg__sinf(a);
t[0] = cs; t[1] = sn;
t[2] = -sn; t[3] = cs;
t[4] = 0.0f; t[5] = 0.0f;
}
void nvgTransformSkewX(float* t, float a)
{
t[0] = 1.0f; t[1] = 0.0f;
t[2] = nvg__tanf(a); t[3] = 1.0f;
t[4] = 0.0f; t[5] = 0.0f;
}
void nvgTransformSkewY(float* t, float a)
{
t[0] = 1.0f; t[1] = nvg__tanf(a);
t[2] = 0.0f; t[3] = 1.0f;
t[4] = 0.0f; t[5] = 0.0f;
}
void nvgTransformMultiply(float* t, const float* s)
{
float t0 = t[0] * s[0] + t[1] * s[2];
float t2 = t[2] * s[0] + t[3] * s[2];
float t4 = t[4] * s[0] + t[5] * s[2] + s[4];
t[1] = t[0] * s[1] + t[1] * s[3];
t[3] = t[2] * s[1] + t[3] * s[3];
t[5] = t[4] * s[1] + t[5] * s[3] + s[5];
t[0] = t0;
t[2] = t2;
t[4] = t4;
}
void nvgTransformPremultiply(float* t, const float* s)
{
float s2[6];
memcpy(s2, s, sizeof(float)*6);
nvgTransformMultiply(s2, t);
memcpy(t, s2, sizeof(float)*6);
}
int nvgTransformInverse(float* inv, const float* t)
{
double invdet, det = (double)t[0] * t[3] - (double)t[2] * t[1];
if (det > -1e-6 && det < 1e-6) {
nvgTransformIdentity(inv);
return 0;
}
invdet = 1.0 / det;
inv[0] = (float)(t[3] * invdet);
inv[2] = (float)(-t[2] * invdet);
inv[4] = (float)(((double)t[2] * t[5] - (double)t[3] * t[4]) * invdet);
inv[1] = (float)(-t[1] * invdet);
inv[3] = (float)(t[0] * invdet);
inv[5] = (float)(((double)t[1] * t[4] - (double)t[0] * t[5]) * invdet);
return 1;
}
void nvgTransformPoint(float* dx, float* dy, const float* t, float sx, float sy)
{
*dx = sx*t[0] + sy*t[2] + t[4];
*dy = sx*t[1] + sy*t[3] + t[5];
}
float nvgDegToRad(float deg)
{
return deg / 180.0f * NVG_PI;
}
float nvgRadToDeg(float rad)
{
return rad / NVG_PI * 180.0f;
}
static void nvg__setPaintColor(NVGpaint* p, NVGcolor color)
{
memset(p, 0, sizeof(*p));
nvgTransformIdentity(p->xform);
p->radius = 0.0f;
p->feather = 1.0f;
p->innerColor = color;
p->outerColor = color;
}
// State handling
void nvgSave(NVGcontext* ctx)
{
if (ctx->nstates >= NVG_MAX_STATES)
return;
if (ctx->nstates > 0)
memcpy(&ctx->states[ctx->nstates], &ctx->states[ctx->nstates-1], sizeof(NVGstate));
ctx->nstates++;
}
void nvgRestore(NVGcontext* ctx)
{
if (ctx->nstates <= 1)
return;
ctx->nstates--;
}
void nvgReset(NVGcontext* ctx)
{
NVGstate* state = nvg__getState(ctx);
memset(state, 0, sizeof(*state));
nvg__setPaintColor(&state->fill, nvgRGBA(255,255,255,255));
nvg__setPaintColor(&state->stroke, nvgRGBA(0,0,0,255));
state->compositeOperation = nvg__compositeOperationState(NVG_SOURCE_OVER);
state->shapeAntiAlias = 1;
state->strokeWidth = 1.0f;
state->miterLimit = 10.0f;
state->lineCap = NVG_BUTT;
state->lineJoin = NVG_MITER;
state->alpha = 1.0f;
nvgTransformIdentity(state->xform);
state->scissor.extent[0] = -1.0f;
state->scissor.extent[1] = -1.0f;
state->fontSize = 16.0f;
state->letterSpacing = 0.0f;
state->lineHeight = 1.0f;
state->fontBlur = 0.0f;
state->textAlign = NVG_ALIGN_LEFT | NVG_ALIGN_BASELINE;
state->fontId = 0;
}
// State setting
void nvgShapeAntiAlias(NVGcontext* ctx, int enabled)
{
NVGstate* state = nvg__getState(ctx);
state->shapeAntiAlias = enabled;
}
void nvgStrokeWidth(NVGcontext* ctx, float width)
{
NVGstate* state = nvg__getState(ctx);
state->strokeWidth = width;
}
void nvgMiterLimit(NVGcontext* ctx, float limit)
{
NVGstate* state = nvg__getState(ctx);
state->miterLimit = limit;
}
void nvgLineCap(NVGcontext* ctx, int cap)
{
NVGstate* state = nvg__getState(ctx);
state->lineCap = cap;
}
void nvgLineJoin(NVGcontext* ctx, int join)
{
NVGstate* state = nvg__getState(ctx);
state->lineJoin = join;
}
void nvgGlobalAlpha(NVGcontext* ctx, float alpha)
{
NVGstate* state = nvg__getState(ctx);
state->alpha = alpha;
}
void nvgTransform(NVGcontext* ctx, float a, float b, float c, float d, float e, float f)
{
NVGstate* state = nvg__getState(ctx);
float t[6] = { a, b, c, d, e, f };
nvgTransformPremultiply(state->xform, t);
}
void nvgResetTransform(NVGcontext* ctx)
{
NVGstate* state = nvg__getState(ctx);
nvgTransformIdentity(state->xform);
}
void nvgTranslate(NVGcontext* ctx, float x, float y)
{
NVGstate* state = nvg__getState(ctx);
float t[6];
nvgTransformTranslate(t, x,y);
nvgTransformPremultiply(state->xform, t);
}
void nvgRotate(NVGcontext* ctx, float angle)
{
NVGstate* state = nvg__getState(ctx);
float t[6];
nvgTransformRotate(t, angle);
nvgTransformPremultiply(state->xform, t);
}
void nvgSkewX(NVGcontext* ctx, float angle)
{
NVGstate* state = nvg__getState(ctx);
float t[6];
nvgTransformSkewX(t, angle);
nvgTransformPremultiply(state->xform, t);
}
void nvgSkewY(NVGcontext* ctx, float angle)
{
NVGstate* state = nvg__getState(ctx);
float t[6];
nvgTransformSkewY(t, angle);
nvgTransformPremultiply(state->xform, t);
}
void nvgScale(NVGcontext* ctx, float x, float y)
{
NVGstate* state = nvg__getState(ctx);
float t[6];
nvgTransformScale(t, x,y);
nvgTransformPremultiply(state->xform, t);
}
void nvgCurrentTransform(NVGcontext* ctx, float* xform)
{
NVGstate* state = nvg__getState(ctx);
if (xform == NULL) return;
memcpy(xform, state->xform, sizeof(float)*6);
}
void nvgStrokeColor(NVGcontext* ctx, NVGcolor color)
{
NVGstate* state = nvg__getState(ctx);
nvg__setPaintColor(&state->stroke, color);
}
void nvgStrokePaint(NVGcontext* ctx, NVGpaint paint)
{
NVGstate* state = nvg__getState(ctx);
state->stroke = paint;
nvgTransformMultiply(state->stroke.xform, state->xform);
}
void nvgFillColor(NVGcontext* ctx, NVGcolor color)
{
NVGstate* state = nvg__getState(ctx);
nvg__setPaintColor(&state->fill, color);
}
void nvgFillPaint(NVGcontext* ctx, NVGpaint paint)
{
NVGstate* state = nvg__getState(ctx);
state->fill = paint;
nvgTransformMultiply(state->fill.xform, state->xform);
}
#ifndef NVG_NO_STB
int nvgCreateImage(NVGcontext* ctx, const char* filename, int imageFlags)
{
int w, h, n, image;
unsigned char* img;
stbi_set_unpremultiply_on_load(1);
stbi_convert_iphone_png_to_rgb(1);
img = stbi_load(filename, &w, &h, &n, 4);
if (img == NULL) {
// printf("Failed to load %s - %s\n", filename, stbi_failure_reason());
return 0;
}
image = nvgCreateImageRGBA(ctx, w, h, imageFlags, img);
stbi_image_free(img);
return image;
}
int nvgCreateImageMem(NVGcontext* ctx, int imageFlags, unsigned char* data, int ndata)
{
int w, h, n, image;
unsigned char* img = stbi_load_from_memory(data, ndata, &w, &h, &n, 4);
if (img == NULL) {
// printf("Failed to load %s - %s\n", filename, stbi_failure_reason());
return 0;
}
image = nvgCreateImageRGBA(ctx, w, h, imageFlags, img);
stbi_image_free(img);
return image;
}
#endif
int nvgCreateImageRGBA(NVGcontext* ctx, int w, int h, int imageFlags, const unsigned char* data)
{
return ctx->params.renderCreateTexture(ctx->params.userPtr, NVG_TEXTURE_RGBA, w, h, imageFlags, data);
}
void nvgUpdateImage(NVGcontext* ctx, int image, const unsigned char* data)
{
int w, h;
ctx->params.renderGetTextureSize(ctx->params.userPtr, image, &w, &h);
ctx->params.renderUpdateTexture(ctx->params.userPtr, image, 0,0, w,h, data);
}
void nvgImageSize(NVGcontext* ctx, int image, int* w, int* h)
{
ctx->params.renderGetTextureSize(ctx->params.userPtr, image, w, h);
}
void nvgDeleteImage(NVGcontext* ctx, int image)
{
ctx->params.renderDeleteTexture(ctx->params.userPtr, image);
}
NVGpaint nvgLinearGradient(NVGcontext* ctx,
float sx, float sy, float ex, float ey,
NVGcolor icol, NVGcolor ocol)
{
NVGpaint p;
float dx, dy, d;
const float large = 1e5;
NVG_NOTUSED(ctx);
memset(&p, 0, sizeof(p));
// Calculate transform aligned to the line
dx = ex - sx;
dy = ey - sy;
d = sqrtf(dx*dx + dy*dy);
if (d > 0.0001f) {
dx /= d;
dy /= d;
} else {
dx = 0;
dy = 1;
}
p.xform[0] = dy; p.xform[1] = -dx;
p.xform[2] = dx; p.xform[3] = dy;
p.xform[4] = sx - dx*large; p.xform[5] = sy - dy*large;
p.extent[0] = large;
p.extent[1] = large + d*0.5f;
p.radius = 0.0f;
p.feather = nvg__maxf(1.0f, d);
p.innerColor = icol;
p.outerColor = ocol;
return p;
}
NVGpaint nvgRadialGradient(NVGcontext* ctx,
float cx, float cy, float inr, float outr,
NVGcolor icol, NVGcolor ocol)
{
NVGpaint p;
float r = (inr+outr)*0.5f;
float f = (outr-inr);
NVG_NOTUSED(ctx);
memset(&p, 0, sizeof(p));
nvgTransformIdentity(p.xform);
p.xform[4] = cx;
p.xform[5] = cy;
p.extent[0] = r;
p.extent[1] = r;
p.radius = r;
p.feather = nvg__maxf(1.0f, f);
p.innerColor = icol;
p.outerColor = ocol;
return p;
}
NVGpaint nvgBoxGradient(NVGcontext* ctx,
float x, float y, float w, float h, float r, float f,
NVGcolor icol, NVGcolor ocol)
{
NVGpaint p;
NVG_NOTUSED(ctx);
memset(&p, 0, sizeof(p));
nvgTransformIdentity(p.xform);
p.xform[4] = x+w*0.5f;
p.xform[5] = y+h*0.5f;
p.extent[0] = w*0.5f;
p.extent[1] = h*0.5f;
p.radius = r;
p.feather = nvg__maxf(1.0f, f);
p.innerColor = icol;
p.outerColor = ocol;
return p;
}
NVGpaint nvgImagePattern(NVGcontext* ctx,
float cx, float cy, float w, float h, float angle,
int image, float alpha)
{
NVGpaint p;
NVG_NOTUSED(ctx);
memset(&p, 0, sizeof(p));
nvgTransformRotate(p.xform, angle);
p.xform[4] = cx;
p.xform[5] = cy;
p.extent[0] = w;
p.extent[1] = h;
p.image = image;
p.innerColor = p.outerColor = nvgRGBAf(1,1,1,alpha);
return p;
}
// Scissoring
void nvgScissor(NVGcontext* ctx, float x, float y, float w, float h)
{
NVGstate* state = nvg__getState(ctx);
w = nvg__maxf(0.0f, w);
h = nvg__maxf(0.0f, h);
nvgTransformIdentity(state->scissor.xform);
state->scissor.xform[4] = x+w*0.5f;
state->scissor.xform[5] = y+h*0.5f;
nvgTransformMultiply(state->scissor.xform, state->xform);
state->scissor.extent[0] = w*0.5f;
state->scissor.extent[1] = h*0.5f;
}
static void nvg__isectRects(float* dst,
float ax, float ay, float aw, float ah,
float bx, float by, float bw, float bh)
{
float minx = nvg__maxf(ax, bx);
float miny = nvg__maxf(ay, by);
float maxx = nvg__minf(ax+aw, bx+bw);
float maxy = nvg__minf(ay+ah, by+bh);
dst[0] = minx;
dst[1] = miny;
dst[2] = nvg__maxf(0.0f, maxx - minx);
dst[3] = nvg__maxf(0.0f, maxy - miny);
}
void nvgIntersectScissor(NVGcontext* ctx, float x, float y, float w, float h)
{
NVGstate* state = nvg__getState(ctx);
float pxform[6], invxorm[6];
float rect[4];
float ex, ey, tex, tey;
// If no previous scissor has been set, set the scissor as current scissor.
if (state->scissor.extent[0] < 0) {
nvgScissor(ctx, x, y, w, h);
return;
}
// Transform the current scissor rect into current transform space.
// If there is difference in rotation, this will be approximation.
memcpy(pxform, state->scissor.xform, sizeof(float)*6);
ex = state->scissor.extent[0];
ey = state->scissor.extent[1];
nvgTransformInverse(invxorm, state->xform);
nvgTransformMultiply(pxform, invxorm);
tex = ex*nvg__absf(pxform[0]) + ey*nvg__absf(pxform[2]);
tey = ex*nvg__absf(pxform[1]) + ey*nvg__absf(pxform[3]);
// Intersect rects.
nvg__isectRects(rect, pxform[4]-tex,pxform[5]-tey,tex*2,tey*2, x,y,w,h);
nvgScissor(ctx, rect[0], rect[1], rect[2], rect[3]);
}
void nvgResetScissor(NVGcontext* ctx)
{
NVGstate* state = nvg__getState(ctx);
memset(state->scissor.xform, 0, sizeof(state->scissor.xform));
state->scissor.extent[0] = -1.0f;
state->scissor.extent[1] = -1.0f;
}
// Global composite operation.
void nvgGlobalCompositeOperation(NVGcontext* ctx, int op)
{
NVGstate* state = nvg__getState(ctx);
state->compositeOperation = nvg__compositeOperationState(op);
}
void nvgGlobalCompositeBlendFunc(NVGcontext* ctx, int sfactor, int dfactor)
{
nvgGlobalCompositeBlendFuncSeparate(ctx, sfactor, dfactor, sfactor, dfactor);
}
void nvgGlobalCompositeBlendFuncSeparate(NVGcontext* ctx, int srcRGB, int dstRGB, int srcAlpha, int dstAlpha)
{
NVGcompositeOperationState op;
op.srcRGB = srcRGB;
op.dstRGB = dstRGB;
op.srcAlpha = srcAlpha;
op.dstAlpha = dstAlpha;
NVGstate* state = nvg__getState(ctx);
state->compositeOperation = op;
}
static int nvg__ptEquals(float x1, float y1, float x2, float y2, float tol)
{
float dx = x2 - x1;
float dy = y2 - y1;
return dx*dx + dy*dy < tol*tol;
}
static float nvg__distPtSeg(float x, float y, float px, float py, float qx, float qy)
{
float pqx, pqy, dx, dy, d, t;
pqx = qx-px;
pqy = qy-py;
dx = x-px;
dy = y-py;
d = pqx*pqx + pqy*pqy;
t = pqx*dx + pqy*dy;
if (d > 0) t /= d;
if (t < 0) t = 0;
else if (t > 1) t = 1;
dx = px + t*pqx - x;
dy = py + t*pqy - y;
return dx*dx + dy*dy;
}
static void nvg__appendCommands(NVGcontext* ctx, float* vals, int nvals)
{
NVGstate* state = nvg__getState(ctx);
int i;
if (ctx->ncommands+nvals > ctx->ccommands) {
float* commands;
int ccommands = ctx->ncommands+nvals + ctx->ccommands/2;
commands = (float*)realloc(ctx->commands, sizeof(float)*ccommands);
if (commands == NULL) return;
ctx->commands = commands;
ctx->ccommands = ccommands;
}
if ((int)vals[0] != NVG_CLOSE && (int)vals[0] != NVG_WINDING) {
ctx->commandx = vals[nvals-2];
ctx->commandy = vals[nvals-1];
}
// transform commands
i = 0;
while (i < nvals) {
int cmd = (int)vals[i];
switch (cmd) {
case NVG_MOVETO:
nvgTransformPoint(&vals[i+1],&vals[i+2], state->xform, vals[i+1],vals[i+2]);
i += 3;
break;
case NVG_LINETO:
nvgTransformPoint(&vals[i+1],&vals[i+2], state->xform, vals[i+1],vals[i+2]);
i += 3;
break;
case NVG_BEZIERTO:
nvgTransformPoint(&vals[i+1],&vals[i+2], state->xform, vals[i+1],vals[i+2]);
nvgTransformPoint(&vals[i+3],&vals[i+4], state->xform, vals[i+3],vals[i+4]);
nvgTransformPoint(&vals[i+5],&vals[i+6], state->xform, vals[i+5],vals[i+6]);
i += 7;
break;
case NVG_CLOSE:
i++;
break;
case NVG_WINDING:
i += 2;
break;
default:
i++;
}
}
memcpy(&ctx->commands[ctx->ncommands], vals, nvals*sizeof(float));
ctx->ncommands += nvals;
}
static void nvg__clearPathCache(NVGcontext* ctx)
{
ctx->cache->npoints = 0;
ctx->cache->npaths = 0;
}
static NVGpath* nvg__lastPath(NVGcontext* ctx)
{
if (ctx->cache->npaths > 0)
return &ctx->cache->paths[ctx->cache->npaths-1];
return NULL;
}
static void nvg__addPath(NVGcontext* ctx)
{
NVGpath* path;
if (ctx->cache->npaths+1 > ctx->cache->cpaths) {
NVGpath* paths;
int cpaths = ctx->cache->npaths+1 + ctx->cache->cpaths/2;
paths = (NVGpath*)realloc(ctx->cache->paths, sizeof(NVGpath)*cpaths);
if (paths == NULL) return;
ctx->cache->paths = paths;
ctx->cache->cpaths = cpaths;
}
path = &ctx->cache->paths[ctx->cache->npaths];
memset(path, 0, sizeof(*path));
path->first = ctx->cache->npoints;
path->winding = NVG_CCW;
ctx->cache->npaths++;
}
static NVGpoint* nvg__lastPoint(NVGcontext* ctx)
{
if (ctx->cache->npoints > 0)
return &ctx->cache->points[ctx->cache->npoints-1];
return NULL;
}
static void nvg__addPoint(NVGcontext* ctx, float x, float y, int flags)
{
NVGpath* path = nvg__lastPath(ctx);
NVGpoint* pt;
if (path == NULL) return;
if (path->count > 0 && ctx->cache->npoints > 0) {
pt = nvg__lastPoint(ctx);
if (nvg__ptEquals(pt->x,pt->y, x,y, ctx->distTol)) {
pt->flags |= flags;
return;
}
}
if (ctx->cache->npoints+1 > ctx->cache->cpoints) {
NVGpoint* points;
int cpoints = ctx->cache->npoints+1 + ctx->cache->cpoints/2;
points = (NVGpoint*)realloc(ctx->cache->points, sizeof(NVGpoint)*cpoints);
if (points == NULL) return;
ctx->cache->points = points;
ctx->cache->cpoints = cpoints;
}
pt = &ctx->cache->points[ctx->cache->npoints];
memset(pt, 0, sizeof(*pt));
pt->x = x;
pt->y = y;
pt->flags = (unsigned char)flags;
ctx->cache->npoints++;
path->count++;
}
static void nvg__closePath(NVGcontext* ctx)
{
NVGpath* path = nvg__lastPath(ctx);
if (path == NULL) return;
path->closed = 1;
}
static void nvg__pathWinding(NVGcontext* ctx, int winding)
{
NVGpath* path = nvg__lastPath(ctx);
if (path == NULL) return;
path->winding = winding;
}
static float nvg__getAverageScale(float *t)
{
float sx = sqrtf(t[0]*t[0] + t[2]*t[2]);
float sy = sqrtf(t[1]*t[1] + t[3]*t[3]);
return (sx + sy) * 0.5f;
}
static NVGvertex* nvg__allocTempVerts(NVGcontext* ctx, int nverts)
{
if (nverts > ctx->cache->cverts) {
NVGvertex* verts;
int cverts = (nverts + 0xff) & ~0xff; // Round up to prevent allocations when things change just slightly.
verts = (NVGvertex*)realloc(ctx->cache->verts, sizeof(NVGvertex)*cverts);
if (verts == NULL) return NULL;
ctx->cache->verts = verts;
ctx->cache->cverts = cverts;
}
return ctx->cache->verts;
}
static float nvg__triarea2(float ax, float ay, float bx, float by, float cx, float cy)
{
float abx = bx - ax;
float aby = by - ay;
float acx = cx - ax;
float acy = cy - ay;
return acx*aby - abx*acy;
}
static float nvg__polyArea(NVGpoint* pts, int npts)
{
int i;
float area = 0;
for (i = 2; i < npts; i++) {
NVGpoint* a = &pts[0];
NVGpoint* b = &pts[i-1];
NVGpoint* c = &pts[i];
area += nvg__triarea2(a->x,a->y, b->x,b->y, c->x,c->y);
}
return area * 0.5f;
}
static void nvg__polyReverse(NVGpoint* pts, int npts)
{
NVGpoint tmp;
int i = 0, j = npts-1;
while (i < j) {
tmp = pts[i];
pts[i] = pts[j];
pts[j] = tmp;
i++;
j--;
}
}
static void nvg__vset(NVGvertex* vtx, float x, float y, float u, float v)
{
vtx->x = x;
vtx->y = y;
vtx->u = u;
vtx->v = v;
}
static void nvg__tesselateBezier(NVGcontext* ctx,
float x1, float y1, float x2, float y2,
float x3, float y3, float x4, float y4,
int level, int type)
{
float x12,y12,x23,y23,x34,y34,x123,y123,x234,y234,x1234,y1234;
float dx,dy,d2,d3;
if (level > 10) return;
x12 = (x1+x2)*0.5f;
y12 = (y1+y2)*0.5f;
x23 = (x2+x3)*0.5f;
y23 = (y2+y3)*0.5f;
x34 = (x3+x4)*0.5f;
y34 = (y3+y4)*0.5f;
x123 = (x12+x23)*0.5f;
y123 = (y12+y23)*0.5f;
dx = x4 - x1;
dy = y4 - y1;
d2 = nvg__absf(((x2 - x4) * dy - (y2 - y4) * dx));
d3 = nvg__absf(((x3 - x4) * dy - (y3 - y4) * dx));
if ((d2 + d3)*(d2 + d3) < ctx->tessTol * (dx*dx + dy*dy)) {
nvg__addPoint(ctx, x4, y4, type);
return;
}
/* if (nvg__absf(x1+x3-x2-x2) + nvg__absf(y1+y3-y2-y2) + nvg__absf(x2+x4-x3-x3) + nvg__absf(y2+y4-y3-y3) < ctx->tessTol) {
nvg__addPoint(ctx, x4, y4, type);
return;
}*/
x234 = (x23+x34)*0.5f;
y234 = (y23+y34)*0.5f;
x1234 = (x123+x234)*0.5f;
y1234 = (y123+y234)*0.5f;
nvg__tesselateBezier(ctx, x1,y1, x12,y12, x123,y123, x1234,y1234, level+1, 0);
nvg__tesselateBezier(ctx, x1234,y1234, x234,y234, x34,y34, x4,y4, level+1, type);
}
static void nvg__flattenPaths(NVGcontext* ctx)
{
NVGpathCache* cache = ctx->cache;
// NVGstate* state = nvg__getState(ctx);
NVGpoint* last;
NVGpoint* p0;
NVGpoint* p1;
NVGpoint* pts;
NVGpath* path;
int i, j;
float* cp1;
float* cp2;
float* p;
float area;
if (cache->npaths > 0)
return;
// Flatten
i = 0;
while (i < ctx->ncommands) {
int cmd = (int)ctx->commands[i];
switch (cmd) {
case NVG_MOVETO:
nvg__addPath(ctx);
p = &ctx->commands[i+1];
nvg__addPoint(ctx, p[0], p[1], NVG_PT_CORNER);
i += 3;
break;
case NVG_LINETO:
p = &ctx->commands[i+1];
nvg__addPoint(ctx, p[0], p[1], NVG_PT_CORNER);
i += 3;
break;
case NVG_BEZIERTO:
last = nvg__lastPoint(ctx);
if (last != NULL) {
cp1 = &ctx->commands[i+1];
cp2 = &ctx->commands[i+3];
p = &ctx->commands[i+5];
nvg__tesselateBezier(ctx, last->x,last->y, cp1[0],cp1[1], cp2[0],cp2[1], p[0],p[1], 0, NVG_PT_CORNER);
}
i += 7;
break;
case NVG_CLOSE:
nvg__closePath(ctx);
i++;
break;
case NVG_WINDING:
nvg__pathWinding(ctx, (int)ctx->commands[i+1]);
i += 2;
break;
default:
i++;
}
}
cache->bounds[0] = cache->bounds[1] = 1e6f;
cache->bounds[2] = cache->bounds[3] = -1e6f;
// Calculate the direction and length of line segments.
for (j = 0; j < cache->npaths; j++) {
path = &cache->paths[j];
pts = &cache->points[path->first];
// If the first and last points are the same, remove the last, mark as closed path.
p0 = &pts[path->count-1];
p1 = &pts[0];
if (nvg__ptEquals(p0->x,p0->y, p1->x,p1->y, ctx->distTol)) {
path->count--;
p0 = &pts[path->count-1];
path->closed = 1;
}
// Enforce winding.
if (path->count > 2) {
area = nvg__polyArea(pts, path->count);
if (path->winding == NVG_CCW && area < 0.0f)
nvg__polyReverse(pts, path->count);
if (path->winding == NVG_CW && area > 0.0f)
nvg__polyReverse(pts, path->count);
}
for(i = 0; i < path->count; i++) {
// Calculate segment direction and length
p0->dx = p1->x - p0->x;
p0->dy = p1->y - p0->y;
p0->len = nvg__normalize(&p0->dx, &p0->dy);
// Update bounds
cache->bounds[0] = nvg__minf(cache->bounds[0], p0->x);
cache->bounds[1] = nvg__minf(cache->bounds[1], p0->y);
cache->bounds[2] = nvg__maxf(cache->bounds[2], p0->x);
cache->bounds[3] = nvg__maxf(cache->bounds[3], p0->y);
// Advance
p0 = p1++;
}
}
}
static int nvg__curveDivs(float r, float arc, float tol)
{
float da = acosf(r / (r + tol)) * 2.0f;
return nvg__maxi(2, (int)ceilf(arc / da));
}
static void nvg__chooseBevel(int bevel, NVGpoint* p0, NVGpoint* p1, float w,
float* x0, float* y0, float* x1, float* y1)
{
if (bevel) {
*x0 = p1->x + p0->dy * w;
*y0 = p1->y - p0->dx * w;
*x1 = p1->x + p1->dy * w;
*y1 = p1->y - p1->dx * w;
} else {
*x0 = p1->x + p1->dmx * w;
*y0 = p1->y + p1->dmy * w;
*x1 = p1->x + p1->dmx * w;
*y1 = p1->y + p1->dmy * w;
}
}
static NVGvertex* nvg__roundJoin(NVGvertex* dst, NVGpoint* p0, NVGpoint* p1,
float lw, float rw, float lu, float ru, int ncap,
float fringe)
{
int i, n;
float dlx0 = p0->dy;
float dly0 = -p0->dx;
float dlx1 = p1->dy;
float dly1 = -p1->dx;
NVG_NOTUSED(fringe);
if (p1->flags & NVG_PT_LEFT) {
float lx0,ly0,lx1,ly1,a0,a1;
nvg__chooseBevel(p1->flags & NVG_PR_INNERBEVEL, p0, p1, lw, &lx0,&ly0, &lx1,&ly1);
a0 = atan2f(-dly0, -dlx0);
a1 = atan2f(-dly1, -dlx1);
if (a1 > a0) a1 -= NVG_PI*2;
nvg__vset(dst, lx0, ly0, lu,1); dst++;
nvg__vset(dst, p1->x - dlx0*rw, p1->y - dly0*rw, ru,1); dst++;
n = nvg__clampi((int)ceilf(((a0 - a1) / NVG_PI) * ncap), 2, ncap);
for (i = 0; i < n; i++) {
float u = i/(float)(n-1);
float a = a0 + u*(a1-a0);
float rx = p1->x + cosf(a) * rw;
float ry = p1->y + sinf(a) * rw;
nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
nvg__vset(dst, rx, ry, ru,1); dst++;
}
nvg__vset(dst, lx1, ly1, lu,1); dst++;
nvg__vset(dst, p1->x - dlx1*rw, p1->y - dly1*rw, ru,1); dst++;
} else {
float rx0,ry0,rx1,ry1,a0,a1;
nvg__chooseBevel(p1->flags & NVG_PR_INNERBEVEL, p0, p1, -rw, &rx0,&ry0, &rx1,&ry1);
a0 = atan2f(dly0, dlx0);
a1 = atan2f(dly1, dlx1);
if (a1 < a0) a1 += NVG_PI*2;
nvg__vset(dst, p1->x + dlx0*rw, p1->y + dly0*rw, lu,1); dst++;
nvg__vset(dst, rx0, ry0, ru,1); dst++;
n = nvg__clampi((int)ceilf(((a1 - a0) / NVG_PI) * ncap), 2, ncap);
for (i = 0; i < n; i++) {
float u = i/(float)(n-1);
float a = a0 + u*(a1-a0);
float lx = p1->x + cosf(a) * lw;
float ly = p1->y + sinf(a) * lw;
nvg__vset(dst, lx, ly, lu,1); dst++;
nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
}
nvg__vset(dst, p1->x + dlx1*rw, p1->y + dly1*rw, lu,1); dst++;
nvg__vset(dst, rx1, ry1, ru,1); dst++;
}
return dst;
}
static NVGvertex* nvg__bevelJoin(NVGvertex* dst, NVGpoint* p0, NVGpoint* p1,
float lw, float rw, float lu, float ru, float fringe)
{
float rx0,ry0,rx1,ry1;
float lx0,ly0,lx1,ly1;
float dlx0 = p0->dy;
float dly0 = -p0->dx;
float dlx1 = p1->dy;
float dly1 = -p1->dx;
NVG_NOTUSED(fringe);
if (p1->flags & NVG_PT_LEFT) {
nvg__chooseBevel(p1->flags & NVG_PR_INNERBEVEL, p0, p1, lw, &lx0,&ly0, &lx1,&ly1);
nvg__vset(dst, lx0, ly0, lu,1); dst++;
nvg__vset(dst, p1->x - dlx0*rw, p1->y - dly0*rw, ru,1); dst++;
if (p1->flags & NVG_PT_BEVEL) {
nvg__vset(dst, lx0, ly0, lu,1); dst++;
nvg__vset(dst, p1->x - dlx0*rw, p1->y - dly0*rw, ru,1); dst++;
nvg__vset(dst, lx1, ly1, lu,1); dst++;
nvg__vset(dst, p1->x - dlx1*rw, p1->y - dly1*rw, ru,1); dst++;
} else {
rx0 = p1->x - p1->dmx * rw;
ry0 = p1->y - p1->dmy * rw;
nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
nvg__vset(dst, p1->x - dlx0*rw, p1->y - dly0*rw, ru,1); dst++;
nvg__vset(dst, rx0, ry0, ru,1); dst++;
nvg__vset(dst, rx0, ry0, ru,1); dst++;
nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
nvg__vset(dst, p1->x - dlx1*rw, p1->y - dly1*rw, ru,1); dst++;
}
nvg__vset(dst, lx1, ly1, lu,1); dst++;
nvg__vset(dst, p1->x - dlx1*rw, p1->y - dly1*rw, ru,1); dst++;
} else {
nvg__chooseBevel(p1->flags & NVG_PR_INNERBEVEL, p0, p1, -rw, &rx0,&ry0, &rx1,&ry1);
nvg__vset(dst, p1->x + dlx0*lw, p1->y + dly0*lw, lu,1); dst++;
nvg__vset(dst, rx0, ry0, ru,1); dst++;
if (p1->flags & NVG_PT_BEVEL) {
nvg__vset(dst, p1->x + dlx0*lw, p1->y + dly0*lw, lu,1); dst++;
nvg__vset(dst, rx0, ry0, ru,1); dst++;
nvg__vset(dst, p1->x + dlx1*lw, p1->y + dly1*lw, lu,1); dst++;
nvg__vset(dst, rx1, ry1, ru,1); dst++;
} else {
lx0 = p1->x + p1->dmx * lw;
ly0 = p1->y + p1->dmy * lw;
nvg__vset(dst, p1->x + dlx0*lw, p1->y + dly0*lw, lu,1); dst++;
nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
nvg__vset(dst, lx0, ly0, lu,1); dst++;
nvg__vset(dst, lx0, ly0, lu,1); dst++;
nvg__vset(dst, p1->x + dlx1*lw, p1->y + dly1*lw, lu,1); dst++;
nvg__vset(dst, p1->x, p1->y, 0.5f,1); dst++;
}
nvg__vset(dst, p1->x + dlx1*lw, p1->y + dly1*lw, lu,1); dst++;
nvg__vset(dst, rx1, ry1, ru,1); dst++;
}
return dst;
}
static NVGvertex* nvg__buttCapStart(NVGvertex* dst, NVGpoint* p,
float dx, float dy, float w, float d,
float aa, float u0, float u1)
{
float px = p->x - dx*d;
float py = p->y - dy*d;
float dlx = dy;
float dly = -dx;
nvg__vset(dst, px + dlx*w - dx*aa, py + dly*w - dy*aa, u0,0); dst++;
nvg__vset(dst, px - dlx*w - dx*aa, py - dly*w - dy*aa, u1,0); dst++;
nvg__vset(dst, px + dlx*w, py + dly*w, u0,1); dst++;
nvg__vset(dst, px - dlx*w, py - dly*w, u1,1); dst++;
return dst;
}
static NVGvertex* nvg__buttCapEnd(NVGvertex* dst, NVGpoint* p,
float dx, float dy, float w, float d,
float aa, float u0, float u1)
{
float px = p->x + dx*d;
float py = p->y + dy*d;
float dlx = dy;
float dly = -dx;
nvg__vset(dst, px + dlx*w, py + dly*w, u0,1); dst++;
nvg__vset(dst, px - dlx*w, py - dly*w, u1,1); dst++;
nvg__vset(dst, px + dlx*w + dx*aa, py + dly*w + dy*aa, u0,0); dst++;
nvg__vset(dst, px - dlx*w + dx*aa, py - dly*w + dy*aa, u1,0); dst++;
return dst;
}
static NVGvertex* nvg__roundCapStart(NVGvertex* dst, NVGpoint* p,
float dx, float dy, float w, int ncap,
float aa, float u0, float u1)
{
int i;
float px = p->x;
float py = p->y;
float dlx = dy;
float dly = -dx;
NVG_NOTUSED(aa);
for (i = 0; i < ncap; i++) {
float a = i/(float)(ncap-1)*NVG_PI;
float ax = cosf(a) * w, ay = sinf(a) * w;
nvg__vset(dst, px - dlx*ax - dx*ay, py - dly*ax - dy*ay, u0,1); dst++;
nvg__vset(dst, px, py, 0.5f,1); dst++;
}
nvg__vset(dst, px + dlx*w, py + dly*w, u0,1); dst++;
nvg__vset(dst, px - dlx*w, py - dly*w, u1,1); dst++;
return dst;
}
static NVGvertex* nvg__roundCapEnd(NVGvertex* dst, NVGpoint* p,
float dx, float dy, float w, int ncap,
float aa, float u0, float u1)
{
int i;
float px = p->x;
float py = p->y;
float dlx = dy;
float dly = -dx;
NVG_NOTUSED(aa);
nvg__vset(dst, px + dlx*w, py + dly*w, u0,1); dst++;
nvg__vset(dst, px - dlx*w, py - dly*w, u1,1); dst++;
for (i = 0; i < ncap; i++) {
float a = i/(float)(ncap-1)*NVG_PI;
float ax = cosf(a) * w, ay = sinf(a) * w;
nvg__vset(dst, px, py, 0.5f,1); dst++;
nvg__vset(dst, px - dlx*ax + dx*ay, py - dly*ax + dy*ay, u0,1); dst++;
}
return dst;
}
static void nvg__calculateJoins(NVGcontext* ctx, float w, int lineJoin, float miterLimit)
{
NVGpathCache* cache = ctx->cache;
int i, j;
float iw = 0.0f;
if (w > 0.0f) iw = 1.0f / w;
// Calculate which joins needs extra vertices to append, and gather vertex count.
for (i = 0; i < cache->npaths; i++) {
NVGpath* path = &cache->paths[i];
NVGpoint* pts = &cache->points[path->first];
NVGpoint* p0 = &pts[path->count-1];
NVGpoint* p1 = &pts[0];
int nleft = 0;
path->nbevel = 0;
for (j = 0; j < path->count; j++) {
float dlx0, dly0, dlx1, dly1, dmr2, cross, limit;
dlx0 = p0->dy;
dly0 = -p0->dx;
dlx1 = p1->dy;
dly1 = -p1->dx;
// Calculate extrusions
p1->dmx = (dlx0 + dlx1) * 0.5f;
p1->dmy = (dly0 + dly1) * 0.5f;
dmr2 = p1->dmx*p1->dmx + p1->dmy*p1->dmy;
if (dmr2 > 0.000001f) {
float scale = 1.0f / dmr2;
if (scale > 600.0f) {
scale = 600.0f;
}
p1->dmx *= scale;
p1->dmy *= scale;
}
// Clear flags, but keep the corner.
p1->flags = (p1->flags & NVG_PT_CORNER) ? NVG_PT_CORNER : 0;
// Keep track of left turns.
cross = p1->dx * p0->dy - p0->dx * p1->dy;
if (cross > 0.0f) {
nleft++;
p1->flags |= NVG_PT_LEFT;
}
// Calculate if we should use bevel or miter for inner join.
limit = nvg__maxf(1.01f, nvg__minf(p0->len, p1->len) * iw);
if ((dmr2 * limit*limit) < 1.0f)
p1->flags |= NVG_PR_INNERBEVEL;
// Check to see if the corner needs to be beveled.
if (p1->flags & NVG_PT_CORNER) {
if ((dmr2 * miterLimit*miterLimit) < 1.0f || lineJoin == NVG_BEVEL || lineJoin == NVG_ROUND) {
p1->flags |= NVG_PT_BEVEL;
}
}
if ((p1->flags & (NVG_PT_BEVEL | NVG_PR_INNERBEVEL)) != 0)
path->nbevel++;
p0 = p1++;
}
path->convex = (nleft == path->count) ? 1 : 0;
}
}
static int nvg__expandStroke(NVGcontext* ctx, float w, float fringe, int lineCap, int lineJoin, float miterLimit)
{
NVGpathCache* cache = ctx->cache;
NVGvertex* verts;
NVGvertex* dst;
int cverts, i, j;
float aa = fringe;//ctx->fringeWidth;
float u0 = 0.0f, u1 = 1.0f;
int ncap = nvg__curveDivs(w, NVG_PI, ctx->tessTol); // Calculate divisions per half circle.
w += aa * 0.5f;
// Disable the gradient used for antialiasing when antialiasing is not used.
if (aa == 0.0f) {
u0 = 0.5f;
u1 = 0.5f;
}
nvg__calculateJoins(ctx, w, lineJoin, miterLimit);
// Calculate max vertex usage.
cverts = 0;
for (i = 0; i < cache->npaths; i++) {
NVGpath* path = &cache->paths[i];
int loop = (path->closed == 0) ? 0 : 1;
if (lineJoin == NVG_ROUND)
cverts += (path->count + path->nbevel*(ncap+2) + 1) * 2; // plus one for loop
else
cverts += (path->count + path->nbevel*5 + 1) * 2; // plus one for loop
if (loop == 0) {
// space for caps
if (lineCap == NVG_ROUND) {
cverts += (ncap*2 + 2)*2;
} else {
cverts += (3+3)*2;
}
}
}
verts = nvg__allocTempVerts(ctx, cverts);
if (verts == NULL) return 0;
for (i = 0; i < cache->npaths; i++) {
NVGpath* path = &cache->paths[i];
NVGpoint* pts = &cache->points[path->first];
NVGpoint* p0;
NVGpoint* p1;
int s, e, loop;
float dx, dy;
path->fill = 0;
path->nfill = 0;
// Calculate fringe or stroke
loop = (path->closed == 0) ? 0 : 1;
dst = verts;
path->stroke = dst;
if (loop) {
// Looping
p0 = &pts[path->count-1];
p1 = &pts[0];
s = 0;
e = path->count;
} else {
// Add cap
p0 = &pts[0];
p1 = &pts[1];
s = 1;
e = path->count-1;
}
if (loop == 0) {
// Add cap
dx = p1->x - p0->x;
dy = p1->y - p0->y;
nvg__normalize(&dx, &dy);
if (lineCap == NVG_BUTT)
dst = nvg__buttCapStart(dst, p0, dx, dy, w, -aa*0.5f, aa, u0, u1);
else if (lineCap == NVG_BUTT || lineCap == NVG_SQUARE)
dst = nvg__buttCapStart(dst, p0, dx, dy, w, w-aa, aa, u0, u1);
else if (lineCap == NVG_ROUND)
dst = nvg__roundCapStart(dst, p0, dx, dy, w, ncap, aa, u0, u1);
}
for (j = s; j < e; ++j) {
if ((p1->flags & (NVG_PT_BEVEL | NVG_PR_INNERBEVEL)) != 0) {
if (lineJoin == NVG_ROUND) {
dst = nvg__roundJoin(dst, p0, p1, w, w, u0, u1, ncap, aa);
} else {
dst = nvg__bevelJoin(dst, p0, p1, w, w, u0, u1, aa);
}
} else {
nvg__vset(dst, p1->x + (p1->dmx * w), p1->y + (p1->dmy * w), u0,1); dst++;
nvg__vset(dst, p1->x - (p1->dmx * w), p1->y - (p1->dmy * w), u1,1); dst++;
}
p0 = p1++;
}
if (loop) {
// Loop it
nvg__vset(dst, verts[0].x, verts[0].y, u0,1); dst++;
nvg__vset(dst, verts[1].x, verts[1].y, u1,1); dst++;
} else {
// Add cap
dx = p1->x - p0->x;
dy = p1->y - p0->y;
nvg__normalize(&dx, &dy);
if (lineCap == NVG_BUTT)
dst = nvg__buttCapEnd(dst, p1, dx, dy, w, -aa*0.5f, aa, u0, u1);
else if (lineCap == NVG_BUTT || lineCap == NVG_SQUARE)
dst = nvg__buttCapEnd(dst, p1, dx, dy, w, w-aa, aa, u0, u1);
else if (lineCap == NVG_ROUND)
dst = nvg__roundCapEnd(dst, p1, dx, dy, w, ncap, aa, u0, u1);
}
path->nstroke = (int)(dst - verts);
verts = dst;
}
return 1;
}
static int nvg__expandFill(NVGcontext* ctx, float w, int lineJoin, float miterLimit)
{
NVGpathCache* cache = ctx->cache;
NVGvertex* verts;
NVGvertex* dst;
int cverts, convex, i, j;
float aa = ctx->fringeWidth;
int fringe = w > 0.0f;
nvg__calculateJoins(ctx, w, lineJoin, miterLimit);
// Calculate max vertex usage.
cverts = 0;
for (i = 0; i < cache->npaths; i++) {
NVGpath* path = &cache->paths[i];
cverts += path->count + path->nbevel + 1;
if (fringe)
cverts += (path->count + path->nbevel*5 + 1) * 2; // plus one for loop
}
verts = nvg__allocTempVerts(ctx, cverts);
if (verts == NULL) return 0;
convex = cache->npaths == 1 && cache->paths[0].convex;
for (i = 0; i < cache->npaths; i++) {
NVGpath* path = &cache->paths[i];
NVGpoint* pts = &cache->points[path->first];
NVGpoint* p0;
NVGpoint* p1;
float rw, lw, woff;
float ru, lu;
// Calculate shape vertices.
woff = 0.5f*aa;
dst = verts;
path->fill = dst;
if (fringe) {
// Looping
p0 = &pts[path->count-1];
p1 = &pts[0];
for (j = 0; j < path->count; ++j) {
if (p1->flags & NVG_PT_BEVEL) {
float dlx0 = p0->dy;
float dly0 = -p0->dx;
float dlx1 = p1->dy;
float dly1 = -p1->dx;
if (p1->flags & NVG_PT_LEFT) {
float lx = p1->x + p1->dmx * woff;
float ly = p1->y + p1->dmy * woff;
nvg__vset(dst, lx, ly, 0.5f,1); dst++;
} else {
float lx0 = p1->x + dlx0 * woff;
float ly0 = p1->y + dly0 * woff;
float lx1 = p1->x + dlx1 * woff;
float ly1 = p1->y + dly1 * woff;
nvg__vset(dst, lx0, ly0, 0.5f,1); dst++;
nvg__vset(dst, lx1, ly1, 0.5f,1); dst++;
}
} else {
nvg__vset(dst, p1->x + (p1->dmx * woff), p1->y + (p1->dmy * woff), 0.5f,1); dst++;
}
p0 = p1++;
}
} else {
for (j = 0; j < path->count; ++j) {
nvg__vset(dst, pts[j].x, pts[j].y, 0.5f,1);
dst++;
}
}
path->nfill = (int)(dst - verts);
verts = dst;
// Calculate fringe
if (fringe) {
lw = w + woff;
rw = w - woff;
lu = 0;
ru = 1;
dst = verts;
path->stroke = dst;
// Create only half a fringe for convex shapes so that
// the shape can be rendered without stenciling.
if (convex) {
lw = woff; // This should generate the same vertex as fill inset above.
lu = 0.5f; // Set outline fade at middle.
}
// Looping
p0 = &pts[path->count-1];
p1 = &pts[0];
for (j = 0; j < path->count; ++j) {
if ((p1->flags & (NVG_PT_BEVEL | NVG_PR_INNERBEVEL)) != 0) {
dst = nvg__bevelJoin(dst, p0, p1, lw, rw, lu, ru, ctx->fringeWidth);
} else {
nvg__vset(dst, p1->x + (p1->dmx * lw), p1->y + (p1->dmy * lw), lu,1); dst++;
nvg__vset(dst, p1->x - (p1->dmx * rw), p1->y - (p1->dmy * rw), ru,1); dst++;
}
p0 = p1++;
}
// Loop it
nvg__vset(dst, verts[0].x, verts[0].y, lu,1); dst++;
nvg__vset(dst, verts[1].x, verts[1].y, ru,1); dst++;
path->nstroke = (int)(dst - verts);
verts = dst;
} else {
path->stroke = NULL;
path->nstroke = 0;
}
}
return 1;
}
// Draw
void nvgBeginPath(NVGcontext* ctx)
{
ctx->ncommands = 0;
nvg__clearPathCache(ctx);
}
void nvgMoveTo(NVGcontext* ctx, float x, float y)
{
float vals[] = { NVG_MOVETO, x, y };
nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
}
void nvgLineTo(NVGcontext* ctx, float x, float y)
{
float vals[] = { NVG_LINETO, x, y };
nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
}
void nvgBezierTo(NVGcontext* ctx, float c1x, float c1y, float c2x, float c2y, float x, float y)
{
float vals[] = { NVG_BEZIERTO, c1x, c1y, c2x, c2y, x, y };
nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
}
void nvgQuadTo(NVGcontext* ctx, float cx, float cy, float x, float y)
{
float x0 = ctx->commandx;
float y0 = ctx->commandy;
float vals[] = { NVG_BEZIERTO,
x0 + 2.0f/3.0f*(cx - x0), y0 + 2.0f/3.0f*(cy - y0),
x + 2.0f/3.0f*(cx - x), y + 2.0f/3.0f*(cy - y),
x, y };
nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
}
void nvgArcTo(NVGcontext* ctx, float x1, float y1, float x2, float y2, float radius)
{
float x0 = ctx->commandx;
float y0 = ctx->commandy;
float dx0,dy0, dx1,dy1, a, d, cx,cy, a0,a1;
int dir;
if (ctx->ncommands == 0) {
return;
}
// Handle degenerate cases.
if (nvg__ptEquals(x0,y0, x1,y1, ctx->distTol) ||
nvg__ptEquals(x1,y1, x2,y2, ctx->distTol) ||
nvg__distPtSeg(x1,y1, x0,y0, x2,y2) < ctx->distTol*ctx->distTol ||
radius < ctx->distTol) {
nvgLineTo(ctx, x1,y1);
return;
}
// Calculate tangential circle to lines (x0,y0)-(x1,y1) and (x1,y1)-(x2,y2).
dx0 = x0-x1;
dy0 = y0-y1;
dx1 = x2-x1;
dy1 = y2-y1;
nvg__normalize(&dx0,&dy0);
nvg__normalize(&dx1,&dy1);
a = nvg__acosf(dx0*dx1 + dy0*dy1);
d = radius / nvg__tanf(a/2.0f);
// printf("a=%f° d=%f\n", a/NVG_PI*180.0f, d);
if (d > 10000.0f) {
nvgLineTo(ctx, x1,y1);
return;
}
if (nvg__cross(dx0,dy0, dx1,dy1) > 0.0f) {
cx = x1 + dx0*d + dy0*radius;
cy = y1 + dy0*d + -dx0*radius;
a0 = nvg__atan2f(dx0, -dy0);
a1 = nvg__atan2f(-dx1, dy1);
dir = NVG_CW;
// printf("CW c=(%f, %f) a0=%f° a1=%f°\n", cx, cy, a0/NVG_PI*180.0f, a1/NVG_PI*180.0f);
} else {
cx = x1 + dx0*d + -dy0*radius;
cy = y1 + dy0*d + dx0*radius;
a0 = nvg__atan2f(-dx0, dy0);
a1 = nvg__atan2f(dx1, -dy1);
dir = NVG_CCW;
// printf("CCW c=(%f, %f) a0=%f° a1=%f°\n", cx, cy, a0/NVG_PI*180.0f, a1/NVG_PI*180.0f);
}
nvgArc(ctx, cx, cy, radius, a0, a1, dir);
}
void nvgClosePath(NVGcontext* ctx)
{
float vals[] = { NVG_CLOSE };
nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
}
void nvgPathWinding(NVGcontext* ctx, int dir)
{
float vals[] = { NVG_WINDING, (float)dir };
nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
}
void nvgArc(NVGcontext* ctx, float cx, float cy, float r, float a0, float a1, int dir)
{
float a = 0, da = 0, hda = 0, kappa = 0;
float dx = 0, dy = 0, x = 0, y = 0, tanx = 0, tany = 0;
float px = 0, py = 0, ptanx = 0, ptany = 0;
float vals[3 + 5*7 + 100];
int i, ndivs, nvals;
int move = ctx->ncommands > 0 ? NVG_LINETO : NVG_MOVETO;
// Clamp angles
da = a1 - a0;
if (dir == NVG_CW) {
if (nvg__absf(da) >= NVG_PI*2) {
da = NVG_PI*2;
} else {
while (da < 0.0f) da += NVG_PI*2;
}
} else {
if (nvg__absf(da) >= NVG_PI*2) {
da = -NVG_PI*2;
} else {
while (da > 0.0f) da -= NVG_PI*2;
}
}
// Split arc into max 90 degree segments.
ndivs = nvg__maxi(1, nvg__mini((int)(nvg__absf(da) / (NVG_PI*0.5f) + 0.5f), 5));
hda = (da / (float)ndivs) / 2.0f;
kappa = nvg__absf(4.0f / 3.0f * (1.0f - nvg__cosf(hda)) / nvg__sinf(hda));
if (dir == NVG_CCW)
kappa = -kappa;
nvals = 0;
for (i = 0; i <= ndivs; i++) {
a = a0 + da * (i/(float)ndivs);
dx = nvg__cosf(a);
dy = nvg__sinf(a);
x = cx + dx*r;
y = cy + dy*r;
tanx = -dy*r*kappa;
tany = dx*r*kappa;
if (i == 0) {
vals[nvals++] = (float)move;
vals[nvals++] = x;
vals[nvals++] = y;
} else {
vals[nvals++] = NVG_BEZIERTO;
vals[nvals++] = px+ptanx;
vals[nvals++] = py+ptany;
vals[nvals++] = x-tanx;
vals[nvals++] = y-tany;
vals[nvals++] = x;
vals[nvals++] = y;
}
px = x;
py = y;
ptanx = tanx;
ptany = tany;
}
nvg__appendCommands(ctx, vals, nvals);
}
void nvgRect(NVGcontext* ctx, float x, float y, float w, float h)
{
float vals[] = {
NVG_MOVETO, x,y,
NVG_LINETO, x,y+h,
NVG_LINETO, x+w,y+h,
NVG_LINETO, x+w,y,
NVG_CLOSE
};
nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
}
void nvgRoundedRect(NVGcontext* ctx, float x, float y, float w, float h, float r)
{
nvgRoundedRectVarying(ctx, x, y, w, h, r, r, r, r);
}
void nvgRoundedRectVarying(NVGcontext* ctx, float x, float y, float w, float h, float radTopLeft, float radTopRight, float radBottomRight, float radBottomLeft)
{
if(radTopLeft < 0.1f && radTopRight < 0.1f && radBottomRight < 0.1f && radBottomLeft < 0.1f) {
nvgRect(ctx, x, y, w, h);
return;
} else {
float halfw = nvg__absf(w)*0.5f;
float halfh = nvg__absf(h)*0.5f;
float rxBL = nvg__minf(radBottomLeft, halfw) * nvg__signf(w), ryBL = nvg__minf(radBottomLeft, halfh) * nvg__signf(h);
float rxBR = nvg__minf(radBottomRight, halfw) * nvg__signf(w), ryBR = nvg__minf(radBottomRight, halfh) * nvg__signf(h);
float rxTR = nvg__minf(radTopRight, halfw) * nvg__signf(w), ryTR = nvg__minf(radTopRight, halfh) * nvg__signf(h);
float rxTL = nvg__minf(radTopLeft, halfw) * nvg__signf(w), ryTL = nvg__minf(radTopLeft, halfh) * nvg__signf(h);
float vals[] = {
NVG_MOVETO, x, y + ryTL,
NVG_LINETO, x, y + h - ryBL,
NVG_BEZIERTO, x, y + h - ryBL*(1 - NVG_KAPPA90), x + rxBL*(1 - NVG_KAPPA90), y + h, x + rxBL, y + h,
NVG_LINETO, x + w - rxBR, y + h,
NVG_BEZIERTO, x + w - rxBR*(1 - NVG_KAPPA90), y + h, x + w, y + h - ryBR*(1 - NVG_KAPPA90), x + w, y + h - ryBR,
NVG_LINETO, x + w, y + ryTR,
NVG_BEZIERTO, x + w, y + ryTR*(1 - NVG_KAPPA90), x + w - rxTR*(1 - NVG_KAPPA90), y, x + w - rxTR, y,
NVG_LINETO, x + rxTL, y,
NVG_BEZIERTO, x + rxTL*(1 - NVG_KAPPA90), y, x, y + ryTL*(1 - NVG_KAPPA90), x, y + ryTL,
NVG_CLOSE
};
nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
}
}
void nvgEllipse(NVGcontext* ctx, float cx, float cy, float rx, float ry)
{
float vals[] = {
NVG_MOVETO, cx-rx, cy,
NVG_BEZIERTO, cx-rx, cy+ry*NVG_KAPPA90, cx-rx*NVG_KAPPA90, cy+ry, cx, cy+ry,
NVG_BEZIERTO, cx+rx*NVG_KAPPA90, cy+ry, cx+rx, cy+ry*NVG_KAPPA90, cx+rx, cy,
NVG_BEZIERTO, cx+rx, cy-ry*NVG_KAPPA90, cx+rx*NVG_KAPPA90, cy-ry, cx, cy-ry,
NVG_BEZIERTO, cx-rx*NVG_KAPPA90, cy-ry, cx-rx, cy-ry*NVG_KAPPA90, cx-rx, cy,
NVG_CLOSE
};
nvg__appendCommands(ctx, vals, NVG_COUNTOF(vals));
}
void nvgCircle(NVGcontext* ctx, float cx, float cy, float r)
{
nvgEllipse(ctx, cx,cy, r,r);
}
void nvgDebugDumpPathCache(NVGcontext* ctx)
{
const NVGpath* path;
int i, j;
printf("Dumping %d cached paths\n", ctx->cache->npaths);
for (i = 0; i < ctx->cache->npaths; i++) {
path = &ctx->cache->paths[i];
printf(" - Path %d\n", i);
if (path->nfill) {
printf(" - fill: %d\n", path->nfill);
for (j = 0; j < path->nfill; j++)
printf("%f\t%f\n", path->fill[j].x, path->fill[j].y);
}
if (path->nstroke) {
printf(" - stroke: %d\n", path->nstroke);
for (j = 0; j < path->nstroke; j++)
printf("%f\t%f\n", path->stroke[j].x, path->stroke[j].y);
}
}
}
void nvgFill(NVGcontext* ctx)
{
NVGstate* state = nvg__getState(ctx);
const NVGpath* path;
NVGpaint fillPaint = state->fill;
int i;
nvg__flattenPaths(ctx);
if (ctx->params.edgeAntiAlias && state->shapeAntiAlias)
nvg__expandFill(ctx, ctx->fringeWidth, NVG_MITER, 2.4f);
else
nvg__expandFill(ctx, 0.0f, NVG_MITER, 2.4f);
// Apply global alpha
fillPaint.innerColor.a *= state->alpha;
fillPaint.outerColor.a *= state->alpha;
ctx->params.renderFill(ctx->params.userPtr, &fillPaint, state->compositeOperation, &state->scissor, ctx->fringeWidth,
ctx->cache->bounds, ctx->cache->paths, ctx->cache->npaths);
// Count triangles
for (i = 0; i < ctx->cache->npaths; i++) {
path = &ctx->cache->paths[i];
ctx->fillTriCount += path->nfill-2;
ctx->fillTriCount += path->nstroke-2;
ctx->drawCallCount += 2;
}
}
void nvgStroke(NVGcontext* ctx)
{
NVGstate* state = nvg__getState(ctx);
float scale = nvg__getAverageScale(state->xform);
float strokeWidth = nvg__clampf(state->strokeWidth * scale, 0.0f, 200.0f);
NVGpaint strokePaint = state->stroke;
const NVGpath* path;
int i;
if (strokeWidth < ctx->fringeWidth) {
// If the stroke width is less than pixel size, use alpha to emulate coverage.
// Since coverage is area, scale by alpha*alpha.
float alpha = nvg__clampf(strokeWidth / ctx->fringeWidth, 0.0f, 1.0f);
strokePaint.innerColor.a *= alpha*alpha;
strokePaint.outerColor.a *= alpha*alpha;
strokeWidth = ctx->fringeWidth;
}
// Apply global alpha
strokePaint.innerColor.a *= state->alpha;
strokePaint.outerColor.a *= state->alpha;
nvg__flattenPaths(ctx);
if (ctx->params.edgeAntiAlias && state->shapeAntiAlias)
nvg__expandStroke(ctx, strokeWidth*0.5f, ctx->fringeWidth, state->lineCap, state->lineJoin, state->miterLimit);
else
nvg__expandStroke(ctx, strokeWidth*0.5f, 0.0f, state->lineCap, state->lineJoin, state->miterLimit);
ctx->params.renderStroke(ctx->params.userPtr, &strokePaint, state->compositeOperation, &state->scissor, ctx->fringeWidth,
strokeWidth, ctx->cache->paths, ctx->cache->npaths);
// Count triangles
for (i = 0; i < ctx->cache->npaths; i++) {
path = &ctx->cache->paths[i];
ctx->strokeTriCount += path->nstroke-2;
ctx->drawCallCount++;
}
}
// Add fonts
int nvgCreateFont(NVGcontext* ctx, const char* name, const char* filename)
{
return fonsAddFont(ctx->fs, name, filename, 0);
}
int nvgCreateFontAtIndex(NVGcontext* ctx, const char* name, const char* filename, const int fontIndex)
{
return fonsAddFont(ctx->fs, name, filename, fontIndex);
}
int nvgCreateFontMem(NVGcontext* ctx, const char* name, unsigned char* data, int ndata, int freeData)
{
return fonsAddFontMem(ctx->fs, name, data, ndata, freeData, 0);
}
int nvgCreateFontMemAtIndex(NVGcontext* ctx, const char* name, unsigned char* data, int ndata, int freeData, const int fontIndex)
{
return fonsAddFontMem(ctx->fs, name, data, ndata, freeData, fontIndex);
}
int nvgFindFont(NVGcontext* ctx, const char* name)
{
if (name == NULL) return -1;
return fonsGetFontByName(ctx->fs, name);
}
int nvgAddFallbackFontId(NVGcontext* ctx, int baseFont, int fallbackFont)
{
if(baseFont == -1 || fallbackFont == -1) return 0;
return fonsAddFallbackFont(ctx->fs, baseFont, fallbackFont);
}
int nvgAddFallbackFont(NVGcontext* ctx, const char* baseFont, const char* fallbackFont)
{
return nvgAddFallbackFontId(ctx, nvgFindFont(ctx, baseFont), nvgFindFont(ctx, fallbackFont));
}
void nvgResetFallbackFontsId(NVGcontext* ctx, int baseFont)
{
fonsResetFallbackFont(ctx->fs, baseFont);
}
void nvgResetFallbackFonts(NVGcontext* ctx, const char* baseFont)
{
nvgResetFallbackFontsId(ctx, nvgFindFont(ctx, baseFont));
}
// State setting
void nvgFontSize(NVGcontext* ctx, float size)
{
NVGstate* state = nvg__getState(ctx);
state->fontSize = size;
}
void nvgFontBlur(NVGcontext* ctx, float blur)
{
NVGstate* state = nvg__getState(ctx);
state->fontBlur = blur;
}
void nvgTextLetterSpacing(NVGcontext* ctx, float spacing)
{
NVGstate* state = nvg__getState(ctx);
state->letterSpacing = spacing;
}
void nvgTextLineHeight(NVGcontext* ctx, float lineHeight)
{
NVGstate* state = nvg__getState(ctx);
state->lineHeight = lineHeight;
}
void nvgTextAlign(NVGcontext* ctx, int align)
{
NVGstate* state = nvg__getState(ctx);
state->textAlign = align;
}
void nvgFontFaceId(NVGcontext* ctx, int font)
{
NVGstate* state = nvg__getState(ctx);
state->fontId = font;
}
void nvgFontFace(NVGcontext* ctx, const char* font)
{
NVGstate* state = nvg__getState(ctx);
state->fontId = fonsGetFontByName(ctx->fs, font);
}
static float nvg__quantize(float a, float d)
{
return ((int)(a / d + 0.5f)) * d;
}
static float nvg__getFontScale(NVGstate* state)
{
return nvg__minf(nvg__quantize(nvg__getAverageScale(state->xform), 0.01f), 4.0f);
}
static void nvg__flushTextTexture(NVGcontext* ctx)
{
int dirty[4];
if (fonsValidateTexture(ctx->fs, dirty)) {
int fontImage = ctx->fontImages[ctx->fontImageIdx];
// Update texture
if (fontImage != 0) {
int iw, ih;
const unsigned char* data = fonsGetTextureData(ctx->fs, &iw, &ih);
int x = dirty[0];
int y = dirty[1];
int w = dirty[2] - dirty[0];
int h = dirty[3] - dirty[1];
ctx->params.renderUpdateTexture(ctx->params.userPtr, fontImage, x,y, w,h, data);
}
}
}
static int nvg__allocTextAtlas(NVGcontext* ctx)
{
int iw, ih;
nvg__flushTextTexture(ctx);
if (ctx->fontImageIdx >= NVG_MAX_FONTIMAGES-1)
return 0;
// if next fontImage already have a texture
if (ctx->fontImages[ctx->fontImageIdx+1] != 0)
nvgImageSize(ctx, ctx->fontImages[ctx->fontImageIdx+1], &iw, &ih);
else { // calculate the new font image size and create it.
nvgImageSize(ctx, ctx->fontImages[ctx->fontImageIdx], &iw, &ih);
if (iw > ih)
ih *= 2;
else
iw *= 2;
if (iw > NVG_MAX_FONTIMAGE_SIZE || ih > NVG_MAX_FONTIMAGE_SIZE)
iw = ih = NVG_MAX_FONTIMAGE_SIZE;
ctx->fontImages[ctx->fontImageIdx+1] = ctx->params.renderCreateTexture(ctx->params.userPtr, NVG_TEXTURE_ALPHA, iw, ih, 0, NULL);
}
++ctx->fontImageIdx;
fonsResetAtlas(ctx->fs, iw, ih);
return 1;
}
static void nvg__renderText(NVGcontext* ctx, NVGvertex* verts, int nverts)
{
NVGstate* state = nvg__getState(ctx);
NVGpaint paint = state->fill;
// Render triangles.
paint.image = ctx->fontImages[ctx->fontImageIdx];
// Apply global alpha
paint.innerColor.a *= state->alpha;
paint.outerColor.a *= state->alpha;
ctx->params.renderTriangles(ctx->params.userPtr, &paint, state->compositeOperation, &state->scissor, verts, nverts, ctx->fringeWidth);
ctx->drawCallCount++;
ctx->textTriCount += nverts/3;
}
static int nvg__isTransformFlipped(const float *xform)
{
float det = xform[0] * xform[3] - xform[2] * xform[1];
return( det < 0);
}
float nvgText(NVGcontext* ctx, float x, float y, const char* string, const char* end)
{
NVGstate* state = nvg__getState(ctx);
FONStextIter iter, prevIter;
FONSquad q;
NVGvertex* verts;
float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
float invscale = 1.0f / scale;
int cverts = 0;
int nverts = 0;
int isFlipped = nvg__isTransformFlipped(state->xform);
if (end == NULL)
end = string + strlen(string);
if (state->fontId == FONS_INVALID) return x;
fonsSetSize(ctx->fs, state->fontSize*scale);
fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
fonsSetBlur(ctx->fs, state->fontBlur*scale);
fonsSetAlign(ctx->fs, state->textAlign);
fonsSetFont(ctx->fs, state->fontId);
cverts = nvg__maxi(2, (int)(end - string)) * 6; // conservative estimate.
verts = nvg__allocTempVerts(ctx, cverts);
if (verts == NULL) return x;
fonsTextIterInit(ctx->fs, &iter, x*scale, y*scale, string, end, FONS_GLYPH_BITMAP_REQUIRED);
prevIter = iter;
while (fonsTextIterNext(ctx->fs, &iter, &q)) {
float c[4*2];
if (iter.prevGlyphIndex == -1) { // can not retrieve glyph?
if (nverts != 0) {
nvg__renderText(ctx, verts, nverts);
nverts = 0;
}
if (!nvg__allocTextAtlas(ctx))
break; // no memory :(
iter = prevIter;
fonsTextIterNext(ctx->fs, &iter, &q); // try again
if (iter.prevGlyphIndex == -1) // still can not find glyph?
break;
}
prevIter = iter;
if(isFlipped) {
float tmp;
tmp = q.y0; q.y0 = q.y1; q.y1 = tmp;
tmp = q.t0; q.t0 = q.t1; q.t1 = tmp;
}
// Transform corners.
nvgTransformPoint(&c[0],&c[1], state->xform, q.x0*invscale, q.y0*invscale);
nvgTransformPoint(&c[2],&c[3], state->xform, q.x1*invscale, q.y0*invscale);
nvgTransformPoint(&c[4],&c[5], state->xform, q.x1*invscale, q.y1*invscale);
nvgTransformPoint(&c[6],&c[7], state->xform, q.x0*invscale, q.y1*invscale);
// Create triangles
if (nverts+6 <= cverts) {
nvg__vset(&verts[nverts], c[0], c[1], q.s0, q.t0); nverts++;
nvg__vset(&verts[nverts], c[4], c[5], q.s1, q.t1); nverts++;
nvg__vset(&verts[nverts], c[2], c[3], q.s1, q.t0); nverts++;
nvg__vset(&verts[nverts], c[0], c[1], q.s0, q.t0); nverts++;
nvg__vset(&verts[nverts], c[6], c[7], q.s0, q.t1); nverts++;
nvg__vset(&verts[nverts], c[4], c[5], q.s1, q.t1); nverts++;
}
}
// TODO: add back-end bit to do this just once per frame.
nvg__flushTextTexture(ctx);
nvg__renderText(ctx, verts, nverts);
return iter.nextx / scale;
}
void nvgTextBox(NVGcontext* ctx, float x, float y, float breakRowWidth, const char* string, const char* end)
{
NVGstate* state = nvg__getState(ctx);
NVGtextRow rows[2];
int nrows = 0, i;
int oldAlign = state->textAlign;
int halign = state->textAlign & (NVG_ALIGN_LEFT | NVG_ALIGN_CENTER | NVG_ALIGN_RIGHT);
int valign = state->textAlign & (NVG_ALIGN_TOP | NVG_ALIGN_MIDDLE | NVG_ALIGN_BOTTOM | NVG_ALIGN_BASELINE);
float lineh = 0;
if (state->fontId == FONS_INVALID) return;
nvgTextMetrics(ctx, NULL, NULL, &lineh);
state->textAlign = NVG_ALIGN_LEFT | valign;
while ((nrows = nvgTextBreakLines(ctx, string, end, breakRowWidth, rows, 2))) {
for (i = 0; i < nrows; i++) {
NVGtextRow* row = &rows[i];
if (halign & NVG_ALIGN_LEFT)
nvgText(ctx, x, y, row->start, row->end);
else if (halign & NVG_ALIGN_CENTER)
nvgText(ctx, x + breakRowWidth*0.5f - row->width*0.5f, y, row->start, row->end);
else if (halign & NVG_ALIGN_RIGHT)
nvgText(ctx, x + breakRowWidth - row->width, y, row->start, row->end);
y += lineh * state->lineHeight;
}
string = rows[nrows-1].next;
}
state->textAlign = oldAlign;
}
int nvgTextGlyphPositions(NVGcontext* ctx, float x, float y, const char* string, const char* end, NVGglyphPosition* positions, int maxPositions)
{
NVGstate* state = nvg__getState(ctx);
float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
float invscale = 1.0f / scale;
FONStextIter iter, prevIter;
FONSquad q;
int npos = 0;
if (state->fontId == FONS_INVALID) return 0;
if (end == NULL)
end = string + strlen(string);
if (string == end)
return 0;
fonsSetSize(ctx->fs, state->fontSize*scale);
fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
fonsSetBlur(ctx->fs, state->fontBlur*scale);
fonsSetAlign(ctx->fs, state->textAlign);
fonsSetFont(ctx->fs, state->fontId);
fonsTextIterInit(ctx->fs, &iter, x*scale, y*scale, string, end, FONS_GLYPH_BITMAP_OPTIONAL);
prevIter = iter;
while (fonsTextIterNext(ctx->fs, &iter, &q)) {
if (iter.prevGlyphIndex < 0 && nvg__allocTextAtlas(ctx)) { // can not retrieve glyph?
iter = prevIter;
fonsTextIterNext(ctx->fs, &iter, &q); // try again
}
prevIter = iter;
positions[npos].str = iter.str;
positions[npos].x = iter.x * invscale;
positions[npos].minx = nvg__minf(iter.x, q.x0) * invscale;
positions[npos].maxx = nvg__maxf(iter.nextx, q.x1) * invscale;
npos++;
if (npos >= maxPositions)
break;
}
return npos;
}
enum NVGcodepointType {
NVG_SPACE,
NVG_NEWLINE,
NVG_CHAR,
NVG_CJK_CHAR,
};
int nvgTextBreakLines(NVGcontext* ctx, const char* string, const char* end, float breakRowWidth, NVGtextRow* rows, int maxRows)
{
NVGstate* state = nvg__getState(ctx);
float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
float invscale = 1.0f / scale;
FONStextIter iter, prevIter;
FONSquad q;
int nrows = 0;
float rowStartX = 0;
float rowWidth = 0;
float rowMinX = 0;
float rowMaxX = 0;
const char* rowStart = NULL;
const char* rowEnd = NULL;
const char* wordStart = NULL;
float wordStartX = 0;
float wordMinX = 0;
const char* breakEnd = NULL;
float breakWidth = 0;
float breakMaxX = 0;
int type = NVG_SPACE, ptype = NVG_SPACE;
unsigned int pcodepoint = 0;
if (maxRows == 0) return 0;
if (state->fontId == FONS_INVALID) return 0;
if (end == NULL)
end = string + strlen(string);
if (string == end) return 0;
fonsSetSize(ctx->fs, state->fontSize*scale);
fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
fonsSetBlur(ctx->fs, state->fontBlur*scale);
fonsSetAlign(ctx->fs, state->textAlign);
fonsSetFont(ctx->fs, state->fontId);
breakRowWidth *= scale;
fonsTextIterInit(ctx->fs, &iter, 0, 0, string, end, FONS_GLYPH_BITMAP_OPTIONAL);
prevIter = iter;
while (fonsTextIterNext(ctx->fs, &iter, &q)) {
if (iter.prevGlyphIndex < 0 && nvg__allocTextAtlas(ctx)) { // can not retrieve glyph?
iter = prevIter;
fonsTextIterNext(ctx->fs, &iter, &q); // try again
}
prevIter = iter;
switch (iter.codepoint) {
case 9: // \t
case 11: // \v
case 12: // \f
case 32: // space
case 0x00a0: // NBSP
type = NVG_SPACE;
break;
case 10: // \n
type = pcodepoint == 13 ? NVG_SPACE : NVG_NEWLINE;
break;
case 13: // \r
type = pcodepoint == 10 ? NVG_SPACE : NVG_NEWLINE;
break;
case 0x0085: // NEL
type = NVG_NEWLINE;
break;
default:
if ((iter.codepoint >= 0x4E00 && iter.codepoint <= 0x9FFF) ||
(iter.codepoint >= 0x3000 && iter.codepoint <= 0x30FF) ||
(iter.codepoint >= 0xFF00 && iter.codepoint <= 0xFFEF) ||
(iter.codepoint >= 0x1100 && iter.codepoint <= 0x11FF) ||
(iter.codepoint >= 0x3130 && iter.codepoint <= 0x318F) ||
(iter.codepoint >= 0xAC00 && iter.codepoint <= 0xD7AF))
type = NVG_CJK_CHAR;
else
type = NVG_CHAR;
break;
}
if (type == NVG_NEWLINE) {
// Always handle new lines.
rows[nrows].start = rowStart != NULL ? rowStart : iter.str;
rows[nrows].end = rowEnd != NULL ? rowEnd : iter.str;
rows[nrows].width = rowWidth * invscale;
rows[nrows].minx = rowMinX * invscale;
rows[nrows].maxx = rowMaxX * invscale;
rows[nrows].next = iter.next;
nrows++;
if (nrows >= maxRows)
return nrows;
// Set null break point
breakEnd = rowStart;
breakWidth = 0.0;
breakMaxX = 0.0;
// Indicate to skip the white space at the beginning of the row.
rowStart = NULL;
rowEnd = NULL;
rowWidth = 0;
rowMinX = rowMaxX = 0;
} else {
if (rowStart == NULL) {
// Skip white space until the beginning of the line
if (type == NVG_CHAR || type == NVG_CJK_CHAR) {
// The current char is the row so far
rowStartX = iter.x;
rowStart = iter.str;
rowEnd = iter.next;
rowWidth = iter.nextx - rowStartX;
rowMinX = q.x0 - rowStartX;
rowMaxX = q.x1 - rowStartX;
wordStart = iter.str;
wordStartX = iter.x;
wordMinX = q.x0 - rowStartX;
// Set null break point
breakEnd = rowStart;
breakWidth = 0.0;
breakMaxX = 0.0;
}
} else {
float nextWidth = iter.nextx - rowStartX;
// track last non-white space character
if (type == NVG_CHAR || type == NVG_CJK_CHAR) {
rowEnd = iter.next;
rowWidth = iter.nextx - rowStartX;
rowMaxX = q.x1 - rowStartX;
}
// track last end of a word
if (((ptype == NVG_CHAR || ptype == NVG_CJK_CHAR) && type == NVG_SPACE) || type == NVG_CJK_CHAR) {
breakEnd = iter.str;
breakWidth = rowWidth;
breakMaxX = rowMaxX;
}
// track last beginning of a word
if ((ptype == NVG_SPACE && (type == NVG_CHAR || type == NVG_CJK_CHAR)) || type == NVG_CJK_CHAR) {
wordStart = iter.str;
wordStartX = iter.x;
wordMinX = q.x0;
}
// Break to new line when a character is beyond break width.
if ((type == NVG_CHAR || type == NVG_CJK_CHAR) && nextWidth > breakRowWidth) {
// The run length is too long, need to break to new line.
if (breakEnd == rowStart) {
// The current word is longer than the row length, just break it from here.
rows[nrows].start = rowStart;
rows[nrows].end = iter.str;
rows[nrows].width = rowWidth * invscale;
rows[nrows].minx = rowMinX * invscale;
rows[nrows].maxx = rowMaxX * invscale;
rows[nrows].next = iter.str;
nrows++;
if (nrows >= maxRows)
return nrows;
rowStartX = iter.x;
rowStart = iter.str;
rowEnd = iter.next;
rowWidth = iter.nextx - rowStartX;
rowMinX = q.x0 - rowStartX;
rowMaxX = q.x1 - rowStartX;
wordStart = iter.str;
wordStartX = iter.x;
wordMinX = q.x0 - rowStartX;
} else {
// Break the line from the end of the last word, and start new line from the beginning of the new.
rows[nrows].start = rowStart;
rows[nrows].end = breakEnd;
rows[nrows].width = breakWidth * invscale;
rows[nrows].minx = rowMinX * invscale;
rows[nrows].maxx = breakMaxX * invscale;
rows[nrows].next = wordStart;
nrows++;
if (nrows >= maxRows)
return nrows;
// Update row
rowStartX = wordStartX;
rowStart = wordStart;
rowEnd = iter.next;
rowWidth = iter.nextx - rowStartX;
rowMinX = wordMinX - rowStartX;
rowMaxX = q.x1 - rowStartX;
}
// Set null break point
breakEnd = rowStart;
breakWidth = 0.0;
breakMaxX = 0.0;
}
}
}
pcodepoint = iter.codepoint;
ptype = type;
}
// Break the line from the end of the last word, and start new line from the beginning of the new.
if (rowStart != NULL) {
rows[nrows].start = rowStart;
rows[nrows].end = rowEnd;
rows[nrows].width = rowWidth * invscale;
rows[nrows].minx = rowMinX * invscale;
rows[nrows].maxx = rowMaxX * invscale;
rows[nrows].next = end;
nrows++;
}
return nrows;
}
float nvgTextBounds(NVGcontext* ctx, float x, float y, const char* string, const char* end, float* bounds)
{
NVGstate* state = nvg__getState(ctx);
float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
float invscale = 1.0f / scale;
float width;
if (state->fontId == FONS_INVALID) return 0;
fonsSetSize(ctx->fs, state->fontSize*scale);
fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
fonsSetBlur(ctx->fs, state->fontBlur*scale);
fonsSetAlign(ctx->fs, state->textAlign);
fonsSetFont(ctx->fs, state->fontId);
width = fonsTextBounds(ctx->fs, x*scale, y*scale, string, end, bounds);
if (bounds != NULL) {
// Use line bounds for height.
fonsLineBounds(ctx->fs, y*scale, &bounds[1], &bounds[3]);
bounds[0] *= invscale;
bounds[1] *= invscale;
bounds[2] *= invscale;
bounds[3] *= invscale;
}
return width * invscale;
}
void nvgTextBoxBounds(NVGcontext* ctx, float x, float y, float breakRowWidth, const char* string, const char* end, float* bounds)
{
NVGstate* state = nvg__getState(ctx);
NVGtextRow rows[2];
float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
float invscale = 1.0f / scale;
int nrows = 0, i;
int oldAlign = state->textAlign;
int halign = state->textAlign & (NVG_ALIGN_LEFT | NVG_ALIGN_CENTER | NVG_ALIGN_RIGHT);
int valign = state->textAlign & (NVG_ALIGN_TOP | NVG_ALIGN_MIDDLE | NVG_ALIGN_BOTTOM | NVG_ALIGN_BASELINE);
float lineh = 0, rminy = 0, rmaxy = 0;
float minx, miny, maxx, maxy;
if (state->fontId == FONS_INVALID) {
if (bounds != NULL)
bounds[0] = bounds[1] = bounds[2] = bounds[3] = 0.0f;
return;
}
nvgTextMetrics(ctx, NULL, NULL, &lineh);
state->textAlign = NVG_ALIGN_LEFT | valign;
minx = maxx = x;
miny = maxy = y;
fonsSetSize(ctx->fs, state->fontSize*scale);
fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
fonsSetBlur(ctx->fs, state->fontBlur*scale);
fonsSetAlign(ctx->fs, state->textAlign);
fonsSetFont(ctx->fs, state->fontId);
fonsLineBounds(ctx->fs, 0, &rminy, &rmaxy);
rminy *= invscale;
rmaxy *= invscale;
while ((nrows = nvgTextBreakLines(ctx, string, end, breakRowWidth, rows, 2))) {
for (i = 0; i < nrows; i++) {
NVGtextRow* row = &rows[i];
float rminx, rmaxx, dx = 0;
// Horizontal bounds
if (halign & NVG_ALIGN_LEFT)
dx = 0;
else if (halign & NVG_ALIGN_CENTER)
dx = breakRowWidth*0.5f - row->width*0.5f;
else if (halign & NVG_ALIGN_RIGHT)
dx = breakRowWidth - row->width;
rminx = x + row->minx + dx;
rmaxx = x + row->maxx + dx;
minx = nvg__minf(minx, rminx);
maxx = nvg__maxf(maxx, rmaxx);
// Vertical bounds.
miny = nvg__minf(miny, y + rminy);
maxy = nvg__maxf(maxy, y + rmaxy);
y += lineh * state->lineHeight;
}
string = rows[nrows-1].next;
}
state->textAlign = oldAlign;
if (bounds != NULL) {
bounds[0] = minx;
bounds[1] = miny;
bounds[2] = maxx;
bounds[3] = maxy;
}
}
void nvgTextMetrics(NVGcontext* ctx, float* ascender, float* descender, float* lineh)
{
NVGstate* state = nvg__getState(ctx);
float scale = nvg__getFontScale(state) * ctx->devicePxRatio;
float invscale = 1.0f / scale;
if (state->fontId == FONS_INVALID) return;
fonsSetSize(ctx->fs, state->fontSize*scale);
fonsSetSpacing(ctx->fs, state->letterSpacing*scale);
fonsSetBlur(ctx->fs, state->fontBlur*scale);
fonsSetAlign(ctx->fs, state->textAlign);
fonsSetFont(ctx->fs, state->fontId);
fonsVertMetrics(ctx->fs, ascender, descender, lineh);
if (ascender != NULL)
*ascender *= invscale;
if (descender != NULL)
*descender *= invscale;
if (lineh != NULL)
*lineh *= invscale;
}
// vim: ft=c nu noet ts=4
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
src/nanovg.h | C/C++ Header | //
// Copyright (c) 2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#ifndef NANOVG_H
#define NANOVG_H
#ifdef __cplusplus
extern "C" {
#endif
#define NVG_PI 3.14159265358979323846264338327f
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4201) // nonstandard extension used : nameless struct/union
#endif
typedef struct NVGcontext NVGcontext;
struct NVGcolor {
union {
float rgba[4];
struct {
float r,g,b,a;
};
};
};
typedef struct NVGcolor NVGcolor;
struct NVGpaint {
float xform[6];
float extent[2];
float radius;
float feather;
NVGcolor innerColor;
NVGcolor outerColor;
int image;
};
typedef struct NVGpaint NVGpaint;
enum NVGwinding {
NVG_CCW = 1, // Winding for solid shapes
NVG_CW = 2, // Winding for holes
};
enum NVGsolidity {
NVG_SOLID = 1, // CCW
NVG_HOLE = 2, // CW
};
enum NVGlineCap {
NVG_BUTT,
NVG_ROUND,
NVG_SQUARE,
NVG_BEVEL,
NVG_MITER,
};
enum NVGalign {
// Horizontal align
NVG_ALIGN_LEFT = 1<<0, // Default, align text horizontally to left.
NVG_ALIGN_CENTER = 1<<1, // Align text horizontally to center.
NVG_ALIGN_RIGHT = 1<<2, // Align text horizontally to right.
// Vertical align
NVG_ALIGN_TOP = 1<<3, // Align text vertically to top.
NVG_ALIGN_MIDDLE = 1<<4, // Align text vertically to middle.
NVG_ALIGN_BOTTOM = 1<<5, // Align text vertically to bottom.
NVG_ALIGN_BASELINE = 1<<6, // Default, align text vertically to baseline.
};
enum NVGblendFactor {
NVG_ZERO = 1<<0,
NVG_ONE = 1<<1,
NVG_SRC_COLOR = 1<<2,
NVG_ONE_MINUS_SRC_COLOR = 1<<3,
NVG_DST_COLOR = 1<<4,
NVG_ONE_MINUS_DST_COLOR = 1<<5,
NVG_SRC_ALPHA = 1<<6,
NVG_ONE_MINUS_SRC_ALPHA = 1<<7,
NVG_DST_ALPHA = 1<<8,
NVG_ONE_MINUS_DST_ALPHA = 1<<9,
NVG_SRC_ALPHA_SATURATE = 1<<10,
};
enum NVGcompositeOperation {
NVG_SOURCE_OVER,
NVG_SOURCE_IN,
NVG_SOURCE_OUT,
NVG_ATOP,
NVG_DESTINATION_OVER,
NVG_DESTINATION_IN,
NVG_DESTINATION_OUT,
NVG_DESTINATION_ATOP,
NVG_LIGHTER,
NVG_COPY,
NVG_XOR,
};
struct NVGcompositeOperationState {
int srcRGB;
int dstRGB;
int srcAlpha;
int dstAlpha;
};
typedef struct NVGcompositeOperationState NVGcompositeOperationState;
struct NVGglyphPosition {
const char* str; // Position of the glyph in the input string.
float x; // The x-coordinate of the logical glyph position.
float minx, maxx; // The bounds of the glyph shape.
};
typedef struct NVGglyphPosition NVGglyphPosition;
struct NVGtextRow {
const char* start; // Pointer to the input text where the row starts.
const char* end; // Pointer to the input text where the row ends (one past the last character).
const char* next; // Pointer to the beginning of the next row.
float width; // Logical width of the row.
float minx, maxx; // Actual bounds of the row. Logical with and bounds can differ because of kerning and some parts over extending.
};
typedef struct NVGtextRow NVGtextRow;
enum NVGimageFlags {
NVG_IMAGE_GENERATE_MIPMAPS = 1<<0, // Generate mipmaps during creation of the image.
NVG_IMAGE_REPEATX = 1<<1, // Repeat image in X direction.
NVG_IMAGE_REPEATY = 1<<2, // Repeat image in Y direction.
NVG_IMAGE_FLIPY = 1<<3, // Flips (inverses) image in Y direction when rendered.
NVG_IMAGE_PREMULTIPLIED = 1<<4, // Image data has premultiplied alpha.
NVG_IMAGE_NEAREST = 1<<5, // Image interpolation is Nearest instead Linear
};
// Begin drawing a new frame
// Calls to nanovg drawing API should be wrapped in nvgBeginFrame() & nvgEndFrame()
// nvgBeginFrame() defines the size of the window to render to in relation currently
// set viewport (i.e. glViewport on GL backends). Device pixel ration allows to
// control the rendering on Hi-DPI devices.
// For example, GLFW returns two dimension for an opened window: window size and
// frame buffer size. In that case you would set windowWidth/Height to the window size
// devicePixelRatio to: frameBufferWidth / windowWidth.
void nvgBeginFrame(NVGcontext* ctx, float windowWidth, float windowHeight, float devicePixelRatio);
// Cancels drawing the current frame.
void nvgCancelFrame(NVGcontext* ctx);
// Ends drawing flushing remaining render state.
void nvgEndFrame(NVGcontext* ctx);
//
// Composite operation
//
// The composite operations in NanoVG are modeled after HTML Canvas API, and
// the blend func is based on OpenGL (see corresponding manuals for more info).
// The colors in the blending state have premultiplied alpha.
// Sets the composite operation. The op parameter should be one of NVGcompositeOperation.
void nvgGlobalCompositeOperation(NVGcontext* ctx, int op);
// Sets the composite operation with custom pixel arithmetic. The parameters should be one of NVGblendFactor.
void nvgGlobalCompositeBlendFunc(NVGcontext* ctx, int sfactor, int dfactor);
// Sets the composite operation with custom pixel arithmetic for RGB and alpha components separately. The parameters should be one of NVGblendFactor.
void nvgGlobalCompositeBlendFuncSeparate(NVGcontext* ctx, int srcRGB, int dstRGB, int srcAlpha, int dstAlpha);
//
// Color utils
//
// Colors in NanoVG are stored as unsigned ints in ABGR format.
// Returns a color value from red, green, blue values. Alpha will be set to 255 (1.0f).
NVGcolor nvgRGB(unsigned char r, unsigned char g, unsigned char b);
// Returns a color value from red, green, blue values. Alpha will be set to 1.0f.
NVGcolor nvgRGBf(float r, float g, float b);
// Returns a color value from red, green, blue and alpha values.
NVGcolor nvgRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
// Returns a color value from red, green, blue and alpha values.
NVGcolor nvgRGBAf(float r, float g, float b, float a);
// Linearly interpolates from color c0 to c1, and returns resulting color value.
NVGcolor nvgLerpRGBA(NVGcolor c0, NVGcolor c1, float u);
// Sets transparency of a color value.
NVGcolor nvgTransRGBA(NVGcolor c0, unsigned char a);
// Sets transparency of a color value.
NVGcolor nvgTransRGBAf(NVGcolor c0, float a);
// Returns color value specified by hue, saturation and lightness.
// HSL values are all in range [0..1], alpha will be set to 255.
NVGcolor nvgHSL(float h, float s, float l);
// Returns color value specified by hue, saturation and lightness and alpha.
// HSL values are all in range [0..1], alpha in range [0..255]
NVGcolor nvgHSLA(float h, float s, float l, unsigned char a);
//
// State Handling
//
// NanoVG contains state which represents how paths will be rendered.
// The state contains transform, fill and stroke styles, text and font styles,
// and scissor clipping.
// Pushes and saves the current render state into a state stack.
// A matching nvgRestore() must be used to restore the state.
void nvgSave(NVGcontext* ctx);
// Pops and restores current render state.
void nvgRestore(NVGcontext* ctx);
// Resets current render state to default values. Does not affect the render state stack.
void nvgReset(NVGcontext* ctx);
//
// Render styles
//
// Fill and stroke render style can be either a solid color or a paint which is a gradient or a pattern.
// Solid color is simply defined as a color value, different kinds of paints can be created
// using nvgLinearGradient(), nvgBoxGradient(), nvgRadialGradient() and nvgImagePattern().
//
// Current render style can be saved and restored using nvgSave() and nvgRestore().
// Sets whether to draw antialias for nvgStroke() and nvgFill(). It's enabled by default.
void nvgShapeAntiAlias(NVGcontext* ctx, int enabled);
// Sets current stroke style to a solid color.
void nvgStrokeColor(NVGcontext* ctx, NVGcolor color);
// Sets current stroke style to a paint, which can be a one of the gradients or a pattern.
void nvgStrokePaint(NVGcontext* ctx, NVGpaint paint);
// Sets current fill style to a solid color.
void nvgFillColor(NVGcontext* ctx, NVGcolor color);
// Sets current fill style to a paint, which can be a one of the gradients or a pattern.
void nvgFillPaint(NVGcontext* ctx, NVGpaint paint);
// Sets the miter limit of the stroke style.
// Miter limit controls when a sharp corner is beveled.
void nvgMiterLimit(NVGcontext* ctx, float limit);
// Sets the stroke width of the stroke style.
void nvgStrokeWidth(NVGcontext* ctx, float size);
// Sets how the end of the line (cap) is drawn,
// Can be one of: NVG_BUTT (default), NVG_ROUND, NVG_SQUARE.
void nvgLineCap(NVGcontext* ctx, int cap);
// Sets how sharp path corners are drawn.
// Can be one of NVG_MITER (default), NVG_ROUND, NVG_BEVEL.
void nvgLineJoin(NVGcontext* ctx, int join);
// Sets the transparency applied to all rendered shapes.
// Already transparent paths will get proportionally more transparent as well.
void nvgGlobalAlpha(NVGcontext* ctx, float alpha);
//
// Transforms
//
// The paths, gradients, patterns and scissor region are transformed by an transformation
// matrix at the time when they are passed to the API.
// The current transformation matrix is a affine matrix:
// [sx kx tx]
// [ky sy ty]
// [ 0 0 1]
// Where: sx,sy define scaling, kx,ky skewing, and tx,ty translation.
// The last row is assumed to be 0,0,1 and is not stored.
//
// Apart from nvgResetTransform(), each transformation function first creates
// specific transformation matrix and pre-multiplies the current transformation by it.
//
// Current coordinate system (transformation) can be saved and restored using nvgSave() and nvgRestore().
// Resets current transform to a identity matrix.
void nvgResetTransform(NVGcontext* ctx);
// Premultiplies current coordinate system by specified matrix.
// The parameters are interpreted as matrix as follows:
// [a c e]
// [b d f]
// [0 0 1]
void nvgTransform(NVGcontext* ctx, float a, float b, float c, float d, float e, float f);
// Translates current coordinate system.
void nvgTranslate(NVGcontext* ctx, float x, float y);
// Rotates current coordinate system. Angle is specified in radians.
void nvgRotate(NVGcontext* ctx, float angle);
// Skews the current coordinate system along X axis. Angle is specified in radians.
void nvgSkewX(NVGcontext* ctx, float angle);
// Skews the current coordinate system along Y axis. Angle is specified in radians.
void nvgSkewY(NVGcontext* ctx, float angle);
// Scales the current coordinate system.
void nvgScale(NVGcontext* ctx, float x, float y);
// Stores the top part (a-f) of the current transformation matrix in to the specified buffer.
// [a c e]
// [b d f]
// [0 0 1]
// There should be space for 6 floats in the return buffer for the values a-f.
void nvgCurrentTransform(NVGcontext* ctx, float* xform);
// The following functions can be used to make calculations on 2x3 transformation matrices.
// A 2x3 matrix is represented as float[6].
// Sets the transform to identity matrix.
void nvgTransformIdentity(float* dst);
// Sets the transform to translation matrix matrix.
void nvgTransformTranslate(float* dst, float tx, float ty);
// Sets the transform to scale matrix.
void nvgTransformScale(float* dst, float sx, float sy);
// Sets the transform to rotate matrix. Angle is specified in radians.
void nvgTransformRotate(float* dst, float a);
// Sets the transform to skew-x matrix. Angle is specified in radians.
void nvgTransformSkewX(float* dst, float a);
// Sets the transform to skew-y matrix. Angle is specified in radians.
void nvgTransformSkewY(float* dst, float a);
// Sets the transform to the result of multiplication of two transforms, of A = A*B.
void nvgTransformMultiply(float* dst, const float* src);
// Sets the transform to the result of multiplication of two transforms, of A = B*A.
void nvgTransformPremultiply(float* dst, const float* src);
// Sets the destination to inverse of specified transform.
// Returns 1 if the inverse could be calculated, else 0.
int nvgTransformInverse(float* dst, const float* src);
// Transform a point by given transform.
void nvgTransformPoint(float* dstx, float* dsty, const float* xform, float srcx, float srcy);
// Converts degrees to radians and vice versa.
float nvgDegToRad(float deg);
float nvgRadToDeg(float rad);
//
// Images
//
// NanoVG allows you to load jpg, png, psd, tga, pic and gif files to be used for rendering.
// In addition you can upload your own image. The image loading is provided by stb_image.
// The parameter imageFlags is combination of flags defined in NVGimageFlags.
// Creates image by loading it from the disk from specified file name.
// Returns handle to the image.
int nvgCreateImage(NVGcontext* ctx, const char* filename, int imageFlags);
// Creates image by loading it from the specified chunk of memory.
// Returns handle to the image.
int nvgCreateImageMem(NVGcontext* ctx, int imageFlags, unsigned char* data, int ndata);
// Creates image from specified image data.
// Returns handle to the image.
int nvgCreateImageRGBA(NVGcontext* ctx, int w, int h, int imageFlags, const unsigned char* data);
// Updates image data specified by image handle.
void nvgUpdateImage(NVGcontext* ctx, int image, const unsigned char* data);
// Returns the dimensions of a created image.
void nvgImageSize(NVGcontext* ctx, int image, int* w, int* h);
// Deletes created image.
void nvgDeleteImage(NVGcontext* ctx, int image);
//
// Paints
//
// NanoVG supports four types of paints: linear gradient, box gradient, radial gradient and image pattern.
// These can be used as paints for strokes and fills.
// Creates and returns a linear gradient. Parameters (sx,sy)-(ex,ey) specify the start and end coordinates
// of the linear gradient, icol specifies the start color and ocol the end color.
// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
NVGpaint nvgLinearGradient(NVGcontext* ctx, float sx, float sy, float ex, float ey,
NVGcolor icol, NVGcolor ocol);
// Creates and returns a box gradient. Box gradient is a feathered rounded rectangle, it is useful for rendering
// drop shadows or highlights for boxes. Parameters (x,y) define the top-left corner of the rectangle,
// (w,h) define the size of the rectangle, r defines the corner radius, and f feather. Feather defines how blurry
// the border of the rectangle is. Parameter icol specifies the inner color and ocol the outer color of the gradient.
// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
NVGpaint nvgBoxGradient(NVGcontext* ctx, float x, float y, float w, float h,
float r, float f, NVGcolor icol, NVGcolor ocol);
// Creates and returns a radial gradient. Parameters (cx,cy) specify the center, inr and outr specify
// the inner and outer radius of the gradient, icol specifies the start color and ocol the end color.
// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
NVGpaint nvgRadialGradient(NVGcontext* ctx, float cx, float cy, float inr, float outr,
NVGcolor icol, NVGcolor ocol);
// Creates and returns an image pattern. Parameters (ox,oy) specify the left-top location of the image pattern,
// (ex,ey) the size of one image, angle rotation around the top-left corner, image is handle to the image to render.
// The gradient is transformed by the current transform when it is passed to nvgFillPaint() or nvgStrokePaint().
NVGpaint nvgImagePattern(NVGcontext* ctx, float ox, float oy, float ex, float ey,
float angle, int image, float alpha);
//
// Scissoring
//
// Scissoring allows you to clip the rendering into a rectangle. This is useful for various
// user interface cases like rendering a text edit or a timeline.
// Sets the current scissor rectangle.
// The scissor rectangle is transformed by the current transform.
void nvgScissor(NVGcontext* ctx, float x, float y, float w, float h);
// Intersects current scissor rectangle with the specified rectangle.
// The scissor rectangle is transformed by the current transform.
// Note: in case the rotation of previous scissor rect differs from
// the current one, the intersection will be done between the specified
// rectangle and the previous scissor rectangle transformed in the current
// transform space. The resulting shape is always rectangle.
void nvgIntersectScissor(NVGcontext* ctx, float x, float y, float w, float h);
// Reset and disables scissoring.
void nvgResetScissor(NVGcontext* ctx);
//
// Paths
//
// Drawing a new shape starts with nvgBeginPath(), it clears all the currently defined paths.
// Then you define one or more paths and sub-paths which describe the shape. The are functions
// to draw common shapes like rectangles and circles, and lower level step-by-step functions,
// which allow to define a path curve by curve.
//
// NanoVG uses even-odd fill rule to draw the shapes. Solid shapes should have counter clockwise
// winding and holes should have counter clockwise order. To specify winding of a path you can
// call nvgPathWinding(). This is useful especially for the common shapes, which are drawn CCW.
//
// Finally you can fill the path using current fill style by calling nvgFill(), and stroke it
// with current stroke style by calling nvgStroke().
//
// The curve segments and sub-paths are transformed by the current transform.
// Clears the current path and sub-paths.
void nvgBeginPath(NVGcontext* ctx);
// Starts new sub-path with specified point as first point.
void nvgMoveTo(NVGcontext* ctx, float x, float y);
// Adds line segment from the last point in the path to the specified point.
void nvgLineTo(NVGcontext* ctx, float x, float y);
// Adds cubic bezier segment from last point in the path via two control points to the specified point.
void nvgBezierTo(NVGcontext* ctx, float c1x, float c1y, float c2x, float c2y, float x, float y);
// Adds quadratic bezier segment from last point in the path via a control point to the specified point.
void nvgQuadTo(NVGcontext* ctx, float cx, float cy, float x, float y);
// Adds an arc segment at the corner defined by the last path point, and two specified points.
void nvgArcTo(NVGcontext* ctx, float x1, float y1, float x2, float y2, float radius);
// Closes current sub-path with a line segment.
void nvgClosePath(NVGcontext* ctx);
// Sets the current sub-path winding, see NVGwinding and NVGsolidity.
void nvgPathWinding(NVGcontext* ctx, int dir);
// Creates new circle arc shaped sub-path. The arc center is at cx,cy, the arc radius is r,
// and the arc is drawn from angle a0 to a1, and swept in direction dir (NVG_CCW, or NVG_CW).
// Angles are specified in radians.
void nvgArc(NVGcontext* ctx, float cx, float cy, float r, float a0, float a1, int dir);
// Creates new rectangle shaped sub-path.
void nvgRect(NVGcontext* ctx, float x, float y, float w, float h);
// Creates new rounded rectangle shaped sub-path.
void nvgRoundedRect(NVGcontext* ctx, float x, float y, float w, float h, float r);
// Creates new rounded rectangle shaped sub-path with varying radii for each corner.
void nvgRoundedRectVarying(NVGcontext* ctx, float x, float y, float w, float h, float radTopLeft, float radTopRight, float radBottomRight, float radBottomLeft);
// Creates new ellipse shaped sub-path.
void nvgEllipse(NVGcontext* ctx, float cx, float cy, float rx, float ry);
// Creates new circle shaped sub-path.
void nvgCircle(NVGcontext* ctx, float cx, float cy, float r);
// Fills the current path with current fill style.
void nvgFill(NVGcontext* ctx);
// Fills the current path with current stroke style.
void nvgStroke(NVGcontext* ctx);
//
// Text
//
// NanoVG allows you to load .ttf files and use the font to render text.
//
// The appearance of the text can be defined by setting the current text style
// and by specifying the fill color. Common text and font settings such as
// font size, letter spacing and text align are supported. Font blur allows you
// to create simple text effects such as drop shadows.
//
// At render time the font face can be set based on the font handles or name.
//
// Font measure functions return values in local space, the calculations are
// carried in the same resolution as the final rendering. This is done because
// the text glyph positions are snapped to the nearest pixels sharp rendering.
//
// The local space means that values are not rotated or scale as per the current
// transformation. For example if you set font size to 12, which would mean that
// line height is 16, then regardless of the current scaling and rotation, the
// returned line height is always 16. Some measures may vary because of the scaling
// since aforementioned pixel snapping.
//
// While this may sound a little odd, the setup allows you to always render the
// same way regardless of scaling. I.e. following works regardless of scaling:
//
// const char* txt = "Text me up.";
// nvgTextBounds(vg, x,y, txt, NULL, bounds);
// nvgBeginPath(vg);
// nvgRect(vg, bounds[0],bounds[1], bounds[2]-bounds[0], bounds[3]-bounds[1]);
// nvgFill(vg);
//
// Note: currently only solid color fill is supported for text.
// Creates font by loading it from the disk from specified file name.
// Returns handle to the font.
int nvgCreateFont(NVGcontext* ctx, const char* name, const char* filename);
// fontIndex specifies which font face to load from a .ttf/.ttc file.
int nvgCreateFontAtIndex(NVGcontext* ctx, const char* name, const char* filename, const int fontIndex);
// Creates font by loading it from the specified memory chunk.
// Returns handle to the font.
int nvgCreateFontMem(NVGcontext* ctx, const char* name, unsigned char* data, int ndata, int freeData);
// fontIndex specifies which font face to load from a .ttf/.ttc file.
int nvgCreateFontMemAtIndex(NVGcontext* ctx, const char* name, unsigned char* data, int ndata, int freeData, const int fontIndex);
// Finds a loaded font of specified name, and returns handle to it, or -1 if the font is not found.
int nvgFindFont(NVGcontext* ctx, const char* name);
// Adds a fallback font by handle.
int nvgAddFallbackFontId(NVGcontext* ctx, int baseFont, int fallbackFont);
// Adds a fallback font by name.
int nvgAddFallbackFont(NVGcontext* ctx, const char* baseFont, const char* fallbackFont);
// Resets fallback fonts by handle.
void nvgResetFallbackFontsId(NVGcontext* ctx, int baseFont);
// Resets fallback fonts by name.
void nvgResetFallbackFonts(NVGcontext* ctx, const char* baseFont);
// Sets the font size of current text style.
void nvgFontSize(NVGcontext* ctx, float size);
// Sets the blur of current text style.
void nvgFontBlur(NVGcontext* ctx, float blur);
// Sets the letter spacing of current text style.
void nvgTextLetterSpacing(NVGcontext* ctx, float spacing);
// Sets the proportional line height of current text style. The line height is specified as multiple of font size.
void nvgTextLineHeight(NVGcontext* ctx, float lineHeight);
// Sets the text align of current text style, see NVGalign for options.
void nvgTextAlign(NVGcontext* ctx, int align);
// Sets the font face based on specified id of current text style.
void nvgFontFaceId(NVGcontext* ctx, int font);
// Sets the font face based on specified name of current text style.
void nvgFontFace(NVGcontext* ctx, const char* font);
// Draws text string at specified location. If end is specified only the sub-string up to the end is drawn.
float nvgText(NVGcontext* ctx, float x, float y, const char* string, const char* end);
// Draws multi-line text string at specified location wrapped at the specified width. If end is specified only the sub-string up to the end is drawn.
// White space is stripped at the beginning of the rows, the text is split at word boundaries or when new-line characters are encountered.
// Words longer than the max width are slit at nearest character (i.e. no hyphenation).
void nvgTextBox(NVGcontext* ctx, float x, float y, float breakRowWidth, const char* string, const char* end);
// Measures the specified text string. Parameter bounds should be a pointer to float[4],
// if the bounding box of the text should be returned. The bounds value are [xmin,ymin, xmax,ymax]
// Returns the horizontal advance of the measured text (i.e. where the next character should drawn).
// Measured values are returned in local coordinate space.
float nvgTextBounds(NVGcontext* ctx, float x, float y, const char* string, const char* end, float* bounds);
// Measures the specified multi-text string. Parameter bounds should be a pointer to float[4],
// if the bounding box of the text should be returned. The bounds value are [xmin,ymin, xmax,ymax]
// Measured values are returned in local coordinate space.
void nvgTextBoxBounds(NVGcontext* ctx, float x, float y, float breakRowWidth, const char* string, const char* end, float* bounds);
// Calculates the glyph x positions of the specified text. If end is specified only the sub-string will be used.
// Measured values are returned in local coordinate space.
int nvgTextGlyphPositions(NVGcontext* ctx, float x, float y, const char* string, const char* end, NVGglyphPosition* positions, int maxPositions);
// Returns the vertical metrics based on the current text style.
// Measured values are returned in local coordinate space.
void nvgTextMetrics(NVGcontext* ctx, float* ascender, float* descender, float* lineh);
// Breaks the specified text into lines. If end is specified only the sub-string will be used.
// White space is stripped at the beginning of the rows, the text is split at word boundaries or when new-line characters are encountered.
// Words longer than the max width are slit at nearest character (i.e. no hyphenation).
int nvgTextBreakLines(NVGcontext* ctx, const char* string, const char* end, float breakRowWidth, NVGtextRow* rows, int maxRows);
//
// Internal Render API
//
enum NVGtexture {
NVG_TEXTURE_ALPHA = 0x01,
NVG_TEXTURE_RGBA = 0x02,
};
struct NVGscissor {
float xform[6];
float extent[2];
};
typedef struct NVGscissor NVGscissor;
struct NVGvertex {
float x,y,u,v;
};
typedef struct NVGvertex NVGvertex;
struct NVGpath {
int first;
int count;
unsigned char closed;
int nbevel;
NVGvertex* fill;
int nfill;
NVGvertex* stroke;
int nstroke;
int winding;
int convex;
};
typedef struct NVGpath NVGpath;
struct NVGparams {
void* userPtr;
int edgeAntiAlias;
int (*renderCreate)(void* uptr);
int (*renderCreateTexture)(void* uptr, int type, int w, int h, int imageFlags, const unsigned char* data);
int (*renderDeleteTexture)(void* uptr, int image);
int (*renderUpdateTexture)(void* uptr, int image, int x, int y, int w, int h, const unsigned char* data);
int (*renderGetTextureSize)(void* uptr, int image, int* w, int* h);
void (*renderViewport)(void* uptr, float width, float height, float devicePixelRatio);
void (*renderCancel)(void* uptr);
void (*renderFlush)(void* uptr);
void (*renderFill)(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, float fringe, const float* bounds, const NVGpath* paths, int npaths);
void (*renderStroke)(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, float fringe, float strokeWidth, const NVGpath* paths, int npaths);
void (*renderTriangles)(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, const NVGvertex* verts, int nverts, float fringe);
void (*renderDelete)(void* uptr);
};
typedef struct NVGparams NVGparams;
// Constructor and destructor, called by the render back-end.
NVGcontext* nvgCreateInternal(NVGparams* params);
void nvgDeleteInternal(NVGcontext* ctx);
NVGparams* nvgInternalParams(NVGcontext* ctx);
// Debug function to dump cached path data.
void nvgDebugDumpPathCache(NVGcontext* ctx);
#ifdef _MSC_VER
#pragma warning(pop)
#endif
#define NVG_NOTUSED(v) for (;;) { (void)(1 ? (void)0 : ( (void)(v) ) ); break; }
#ifdef __cplusplus
}
#endif
#endif // NANOVG_H
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
src/nanovg_gl.h | C/C++ Header | //
// Copyright (c) 2009-2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#ifndef NANOVG_GL_H
#define NANOVG_GL_H
#ifdef __cplusplus
extern "C" {
#endif
// Create flags
enum NVGcreateFlags {
// Flag indicating if geometry based anti-aliasing is used (may not be needed when using MSAA).
NVG_ANTIALIAS = 1<<0,
// Flag indicating if strokes should be drawn using stencil buffer. The rendering will be a little
// slower, but path overlaps (i.e. self-intersecting or sharp turns) will be drawn just once.
NVG_STENCIL_STROKES = 1<<1,
// Flag indicating that additional debug checks are done.
NVG_DEBUG = 1<<2,
};
#if defined NANOVG_GL2_IMPLEMENTATION
# define NANOVG_GL2 1
# define NANOVG_GL_IMPLEMENTATION 1
#elif defined NANOVG_GL3_IMPLEMENTATION
# define NANOVG_GL3 1
# define NANOVG_GL_IMPLEMENTATION 1
# define NANOVG_GL_USE_UNIFORMBUFFER 1
#elif defined NANOVG_GLES2_IMPLEMENTATION
# define NANOVG_GLES2 1
# define NANOVG_GL_IMPLEMENTATION 1
#elif defined NANOVG_GLES3_IMPLEMENTATION
# define NANOVG_GLES3 1
# define NANOVG_GL_IMPLEMENTATION 1
#endif
#define NANOVG_GL_USE_STATE_FILTER (1)
// Creates NanoVG contexts for different OpenGL (ES) versions.
// Flags should be combination of the create flags above.
#if defined NANOVG_GL2
NVGcontext* nvgCreateGL2(int flags);
void nvgDeleteGL2(NVGcontext* ctx);
int nvglCreateImageFromHandleGL2(NVGcontext* ctx, GLuint textureId, int w, int h, int flags);
GLuint nvglImageHandleGL2(NVGcontext* ctx, int image);
#endif
#if defined NANOVG_GL3
NVGcontext* nvgCreateGL3(int flags);
void nvgDeleteGL3(NVGcontext* ctx);
int nvglCreateImageFromHandleGL3(NVGcontext* ctx, GLuint textureId, int w, int h, int flags);
GLuint nvglImageHandleGL3(NVGcontext* ctx, int image);
#endif
#if defined NANOVG_GLES2
NVGcontext* nvgCreateGLES2(int flags);
void nvgDeleteGLES2(NVGcontext* ctx);
int nvglCreateImageFromHandleGLES2(NVGcontext* ctx, GLuint textureId, int w, int h, int flags);
GLuint nvglImageHandleGLES2(NVGcontext* ctx, int image);
#endif
#if defined NANOVG_GLES3
NVGcontext* nvgCreateGLES3(int flags);
void nvgDeleteGLES3(NVGcontext* ctx);
int nvglCreateImageFromHandleGLES3(NVGcontext* ctx, GLuint textureId, int w, int h, int flags);
GLuint nvglImageHandleGLES3(NVGcontext* ctx, int image);
#endif
// These are additional flags on top of NVGimageFlags.
enum NVGimageFlagsGL {
NVG_IMAGE_NODELETE = 1<<16, // Do not delete GL texture handle.
};
#ifdef __cplusplus
}
#endif
#endif /* NANOVG_GL_H */
#ifdef NANOVG_GL_IMPLEMENTATION
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "nanovg.h"
enum GLNVGuniformLoc {
GLNVG_LOC_VIEWSIZE,
GLNVG_LOC_TEX,
GLNVG_LOC_FRAG,
GLNVG_MAX_LOCS
};
enum GLNVGshaderType {
NSVG_SHADER_FILLGRAD,
NSVG_SHADER_FILLIMG,
NSVG_SHADER_SIMPLE,
NSVG_SHADER_IMG
};
#if NANOVG_GL_USE_UNIFORMBUFFER
enum GLNVGuniformBindings {
GLNVG_FRAG_BINDING = 0,
};
#endif
struct GLNVGshader {
GLuint prog;
GLuint frag;
GLuint vert;
GLint loc[GLNVG_MAX_LOCS];
};
typedef struct GLNVGshader GLNVGshader;
struct GLNVGtexture {
int id;
GLuint tex;
int width, height;
int type;
int flags;
};
typedef struct GLNVGtexture GLNVGtexture;
struct GLNVGblend
{
GLenum srcRGB;
GLenum dstRGB;
GLenum srcAlpha;
GLenum dstAlpha;
};
typedef struct GLNVGblend GLNVGblend;
enum GLNVGcallType {
GLNVG_NONE = 0,
GLNVG_FILL,
GLNVG_CONVEXFILL,
GLNVG_STROKE,
GLNVG_TRIANGLES,
};
struct GLNVGcall {
int type;
int image;
int pathOffset;
int pathCount;
int triangleOffset;
int triangleCount;
int uniformOffset;
GLNVGblend blendFunc;
};
typedef struct GLNVGcall GLNVGcall;
struct GLNVGpath {
int fillOffset;
int fillCount;
int strokeOffset;
int strokeCount;
};
typedef struct GLNVGpath GLNVGpath;
struct GLNVGfragUniforms {
#if NANOVG_GL_USE_UNIFORMBUFFER
float scissorMat[12]; // matrices are actually 3 vec4s
float paintMat[12];
struct NVGcolor innerCol;
struct NVGcolor outerCol;
float scissorExt[2];
float scissorScale[2];
float extent[2];
float radius;
float feather;
float strokeMult;
float strokeThr;
int texType;
int type;
#else
// note: after modifying layout or size of uniform array,
// don't forget to also update the fragment shader source!
#define NANOVG_GL_UNIFORMARRAY_SIZE 11
union {
struct {
float scissorMat[12]; // matrices are actually 3 vec4s
float paintMat[12];
struct NVGcolor innerCol;
struct NVGcolor outerCol;
float scissorExt[2];
float scissorScale[2];
float extent[2];
float radius;
float feather;
float strokeMult;
float strokeThr;
float texType;
float type;
};
float uniformArray[NANOVG_GL_UNIFORMARRAY_SIZE][4];
};
#endif
};
typedef struct GLNVGfragUniforms GLNVGfragUniforms;
struct GLNVGcontext {
GLNVGshader shader;
GLNVGtexture* textures;
float view[2];
int ntextures;
int ctextures;
int textureId;
GLuint vertBuf;
#if defined NANOVG_GL3
GLuint vertArr;
#endif
#if NANOVG_GL_USE_UNIFORMBUFFER
GLuint fragBuf;
#endif
int fragSize;
int flags;
// Per frame buffers
GLNVGcall* calls;
int ccalls;
int ncalls;
GLNVGpath* paths;
int cpaths;
int npaths;
struct NVGvertex* verts;
int cverts;
int nverts;
unsigned char* uniforms;
int cuniforms;
int nuniforms;
// cached state
#if NANOVG_GL_USE_STATE_FILTER
GLuint boundTexture;
GLuint stencilMask;
GLenum stencilFunc;
GLint stencilFuncRef;
GLuint stencilFuncMask;
GLNVGblend blendFunc;
#endif
int dummyTex;
};
typedef struct GLNVGcontext GLNVGcontext;
static int glnvg__maxi(int a, int b) { return a > b ? a : b; }
#ifdef NANOVG_GLES2
static unsigned int glnvg__nearestPow2(unsigned int num)
{
unsigned n = num > 0 ? num - 1 : 0;
n |= n >> 1;
n |= n >> 2;
n |= n >> 4;
n |= n >> 8;
n |= n >> 16;
n++;
return n;
}
#endif
static void glnvg__bindTexture(GLNVGcontext* gl, GLuint tex)
{
#if NANOVG_GL_USE_STATE_FILTER
if (gl->boundTexture != tex) {
gl->boundTexture = tex;
glBindTexture(GL_TEXTURE_2D, tex);
}
#else
glBindTexture(GL_TEXTURE_2D, tex);
#endif
}
static void glnvg__stencilMask(GLNVGcontext* gl, GLuint mask)
{
#if NANOVG_GL_USE_STATE_FILTER
if (gl->stencilMask != mask) {
gl->stencilMask = mask;
glStencilMask(mask);
}
#else
glStencilMask(mask);
#endif
}
static void glnvg__stencilFunc(GLNVGcontext* gl, GLenum func, GLint ref, GLuint mask)
{
#if NANOVG_GL_USE_STATE_FILTER
if ((gl->stencilFunc != func) ||
(gl->stencilFuncRef != ref) ||
(gl->stencilFuncMask != mask)) {
gl->stencilFunc = func;
gl->stencilFuncRef = ref;
gl->stencilFuncMask = mask;
glStencilFunc(func, ref, mask);
}
#else
glStencilFunc(func, ref, mask);
#endif
}
static void glnvg__blendFuncSeparate(GLNVGcontext* gl, const GLNVGblend* blend)
{
#if NANOVG_GL_USE_STATE_FILTER
if ((gl->blendFunc.srcRGB != blend->srcRGB) ||
(gl->blendFunc.dstRGB != blend->dstRGB) ||
(gl->blendFunc.srcAlpha != blend->srcAlpha) ||
(gl->blendFunc.dstAlpha != blend->dstAlpha)) {
gl->blendFunc = *blend;
glBlendFuncSeparate(blend->srcRGB, blend->dstRGB, blend->srcAlpha,blend->dstAlpha);
}
#else
glBlendFuncSeparate(blend->srcRGB, blend->dstRGB, blend->srcAlpha,blend->dstAlpha);
#endif
}
static GLNVGtexture* glnvg__allocTexture(GLNVGcontext* gl)
{
GLNVGtexture* tex = NULL;
int i;
for (i = 0; i < gl->ntextures; i++) {
if (gl->textures[i].id == 0) {
tex = &gl->textures[i];
break;
}
}
if (tex == NULL) {
if (gl->ntextures+1 > gl->ctextures) {
GLNVGtexture* textures;
int ctextures = glnvg__maxi(gl->ntextures+1, 4) + gl->ctextures/2; // 1.5x Overallocate
textures = (GLNVGtexture*)realloc(gl->textures, sizeof(GLNVGtexture)*ctextures);
if (textures == NULL) return NULL;
gl->textures = textures;
gl->ctextures = ctextures;
}
tex = &gl->textures[gl->ntextures++];
}
memset(tex, 0, sizeof(*tex));
tex->id = ++gl->textureId;
return tex;
}
static GLNVGtexture* glnvg__findTexture(GLNVGcontext* gl, int id)
{
int i;
for (i = 0; i < gl->ntextures; i++)
if (gl->textures[i].id == id)
return &gl->textures[i];
return NULL;
}
static int glnvg__deleteTexture(GLNVGcontext* gl, int id)
{
int i;
for (i = 0; i < gl->ntextures; i++) {
if (gl->textures[i].id == id) {
if (gl->textures[i].tex != 0 && (gl->textures[i].flags & NVG_IMAGE_NODELETE) == 0)
glDeleteTextures(1, &gl->textures[i].tex);
memset(&gl->textures[i], 0, sizeof(gl->textures[i]));
return 1;
}
}
return 0;
}
static void glnvg__dumpShaderError(GLuint shader, const char* name, const char* type)
{
GLchar str[512+1];
GLsizei len = 0;
glGetShaderInfoLog(shader, 512, &len, str);
if (len > 512) len = 512;
str[len] = '\0';
printf("Shader %s/%s error:\n%s\n", name, type, str);
}
static void glnvg__dumpProgramError(GLuint prog, const char* name)
{
GLchar str[512+1];
GLsizei len = 0;
glGetProgramInfoLog(prog, 512, &len, str);
if (len > 512) len = 512;
str[len] = '\0';
printf("Program %s error:\n%s\n", name, str);
}
static void glnvg__checkError(GLNVGcontext* gl, const char* str)
{
GLenum err;
if ((gl->flags & NVG_DEBUG) == 0) return;
err = glGetError();
if (err != GL_NO_ERROR) {
printf("Error %08x after %s\n", err, str);
return;
}
}
static int glnvg__createShader(GLNVGshader* shader, const char* name, const char* header, const char* opts, const char* vshader, const char* fshader)
{
GLint status;
GLuint prog, vert, frag;
const char* str[3];
str[0] = header;
str[1] = opts != NULL ? opts : "";
memset(shader, 0, sizeof(*shader));
prog = glCreateProgram();
vert = glCreateShader(GL_VERTEX_SHADER);
frag = glCreateShader(GL_FRAGMENT_SHADER);
str[2] = vshader;
glShaderSource(vert, 3, str, 0);
str[2] = fshader;
glShaderSource(frag, 3, str, 0);
glCompileShader(vert);
glGetShaderiv(vert, GL_COMPILE_STATUS, &status);
if (status != GL_TRUE) {
glnvg__dumpShaderError(vert, name, "vert");
return 0;
}
glCompileShader(frag);
glGetShaderiv(frag, GL_COMPILE_STATUS, &status);
if (status != GL_TRUE) {
glnvg__dumpShaderError(frag, name, "frag");
return 0;
}
glAttachShader(prog, vert);
glAttachShader(prog, frag);
glBindAttribLocation(prog, 0, "vertex");
glBindAttribLocation(prog, 1, "tcoord");
glLinkProgram(prog);
glGetProgramiv(prog, GL_LINK_STATUS, &status);
if (status != GL_TRUE) {
glnvg__dumpProgramError(prog, name);
return 0;
}
shader->prog = prog;
shader->vert = vert;
shader->frag = frag;
return 1;
}
static void glnvg__deleteShader(GLNVGshader* shader)
{
if (shader->prog != 0)
glDeleteProgram(shader->prog);
if (shader->vert != 0)
glDeleteShader(shader->vert);
if (shader->frag != 0)
glDeleteShader(shader->frag);
}
static void glnvg__getUniforms(GLNVGshader* shader)
{
shader->loc[GLNVG_LOC_VIEWSIZE] = glGetUniformLocation(shader->prog, "viewSize");
shader->loc[GLNVG_LOC_TEX] = glGetUniformLocation(shader->prog, "tex");
#if NANOVG_GL_USE_UNIFORMBUFFER
shader->loc[GLNVG_LOC_FRAG] = glGetUniformBlockIndex(shader->prog, "frag");
#else
shader->loc[GLNVG_LOC_FRAG] = glGetUniformLocation(shader->prog, "frag");
#endif
}
static int glnvg__renderCreateTexture(void* uptr, int type, int w, int h, int imageFlags, const unsigned char* data);
static int glnvg__renderCreate(void* uptr)
{
GLNVGcontext* gl = (GLNVGcontext*)uptr;
int align = 4;
// TODO: mediump float may not be enough for GLES2 in iOS.
// see the following discussion: https://github.com/memononen/nanovg/issues/46
static const char* shaderHeader =
#if defined NANOVG_GL2
"#define NANOVG_GL2 1\n"
#elif defined NANOVG_GL3
"#version 150 core\n"
"#define NANOVG_GL3 1\n"
#elif defined NANOVG_GLES2
"#version 100\n"
"#define NANOVG_GL2 1\n"
#elif defined NANOVG_GLES3
"#version 300 es\n"
"#define NANOVG_GL3 1\n"
#endif
#if NANOVG_GL_USE_UNIFORMBUFFER
"#define USE_UNIFORMBUFFER 1\n"
#else
"#define UNIFORMARRAY_SIZE 11\n"
#endif
"\n";
static const char* fillVertShader =
"#ifdef NANOVG_GL3\n"
" uniform vec2 viewSize;\n"
" in vec2 vertex;\n"
" in vec2 tcoord;\n"
" out vec2 ftcoord;\n"
" out vec2 fpos;\n"
"#else\n"
" uniform vec2 viewSize;\n"
" attribute vec2 vertex;\n"
" attribute vec2 tcoord;\n"
" varying vec2 ftcoord;\n"
" varying vec2 fpos;\n"
"#endif\n"
"void main(void) {\n"
" ftcoord = tcoord;\n"
" fpos = vertex;\n"
" gl_Position = vec4(2.0*vertex.x/viewSize.x - 1.0, 1.0 - 2.0*vertex.y/viewSize.y, 0, 1);\n"
"}\n";
static const char* fillFragShader =
"#ifdef GL_ES\n"
"#if defined(GL_FRAGMENT_PRECISION_HIGH) || defined(NANOVG_GL3)\n"
" precision highp float;\n"
"#else\n"
" precision mediump float;\n"
"#endif\n"
"#endif\n"
"#ifdef NANOVG_GL3\n"
"#ifdef USE_UNIFORMBUFFER\n"
" layout(std140) uniform frag {\n"
" mat3 scissorMat;\n"
" mat3 paintMat;\n"
" vec4 innerCol;\n"
" vec4 outerCol;\n"
" vec2 scissorExt;\n"
" vec2 scissorScale;\n"
" vec2 extent;\n"
" float radius;\n"
" float feather;\n"
" float strokeMult;\n"
" float strokeThr;\n"
" int texType;\n"
" int type;\n"
" };\n"
"#else\n" // NANOVG_GL3 && !USE_UNIFORMBUFFER
" uniform vec4 frag[UNIFORMARRAY_SIZE];\n"
"#endif\n"
" uniform sampler2D tex;\n"
" in vec2 ftcoord;\n"
" in vec2 fpos;\n"
" out vec4 outColor;\n"
"#else\n" // !NANOVG_GL3
" uniform vec4 frag[UNIFORMARRAY_SIZE];\n"
" uniform sampler2D tex;\n"
" varying vec2 ftcoord;\n"
" varying vec2 fpos;\n"
"#endif\n"
"#ifndef USE_UNIFORMBUFFER\n"
" #define scissorMat mat3(frag[0].xyz, frag[1].xyz, frag[2].xyz)\n"
" #define paintMat mat3(frag[3].xyz, frag[4].xyz, frag[5].xyz)\n"
" #define innerCol frag[6]\n"
" #define outerCol frag[7]\n"
" #define scissorExt frag[8].xy\n"
" #define scissorScale frag[8].zw\n"
" #define extent frag[9].xy\n"
" #define radius frag[9].z\n"
" #define feather frag[9].w\n"
" #define strokeMult frag[10].x\n"
" #define strokeThr frag[10].y\n"
" #define texType int(frag[10].z)\n"
" #define type int(frag[10].w)\n"
"#endif\n"
"\n"
"float sdroundrect(vec2 pt, vec2 ext, float rad) {\n"
" vec2 ext2 = ext - vec2(rad,rad);\n"
" vec2 d = abs(pt) - ext2;\n"
" return min(max(d.x,d.y),0.0) + length(max(d,0.0)) - rad;\n"
"}\n"
"\n"
"// Scissoring\n"
"float scissorMask(vec2 p) {\n"
" vec2 sc = (abs((scissorMat * vec3(p,1.0)).xy) - scissorExt);\n"
" sc = vec2(0.5,0.5) - sc * scissorScale;\n"
" return clamp(sc.x,0.0,1.0) * clamp(sc.y,0.0,1.0);\n"
"}\n"
"#ifdef EDGE_AA\n"
"// Stroke - from [0..1] to clipped pyramid, where the slope is 1px.\n"
"float strokeMask() {\n"
" return min(1.0, (1.0-abs(ftcoord.x*2.0-1.0))*strokeMult) * min(1.0, ftcoord.y);\n"
"}\n"
"#endif\n"
"\n"
"void main(void) {\n"
" vec4 result;\n"
" float scissor = scissorMask(fpos);\n"
"#ifdef EDGE_AA\n"
" float strokeAlpha = strokeMask();\n"
" if (strokeAlpha < strokeThr) discard;\n"
"#else\n"
" float strokeAlpha = 1.0;\n"
"#endif\n"
" if (type == 0) { // Gradient\n"
" // Calculate gradient color using box gradient\n"
" vec2 pt = (paintMat * vec3(fpos,1.0)).xy;\n"
" float d = clamp((sdroundrect(pt, extent, radius) + feather*0.5) / feather, 0.0, 1.0);\n"
" vec4 color = mix(innerCol,outerCol,d);\n"
" // Combine alpha\n"
" color *= strokeAlpha * scissor;\n"
" result = color;\n"
" } else if (type == 1) { // Image\n"
" // Calculate color fron texture\n"
" vec2 pt = (paintMat * vec3(fpos,1.0)).xy / extent;\n"
"#ifdef NANOVG_GL3\n"
" vec4 color = texture(tex, pt);\n"
"#else\n"
" vec4 color = texture2D(tex, pt);\n"
"#endif\n"
" if (texType == 1) color = vec4(color.xyz*color.w,color.w);"
" if (texType == 2) color = vec4(color.x);"
" // Apply color tint and alpha.\n"
" color *= innerCol;\n"
" // Combine alpha\n"
" color *= strokeAlpha * scissor;\n"
" result = color;\n"
" } else if (type == 2) { // Stencil fill\n"
" result = vec4(1,1,1,1);\n"
" } else if (type == 3) { // Textured tris\n"
"#ifdef NANOVG_GL3\n"
" vec4 color = texture(tex, ftcoord);\n"
"#else\n"
" vec4 color = texture2D(tex, ftcoord);\n"
"#endif\n"
" if (texType == 1) color = vec4(color.xyz*color.w,color.w);"
" if (texType == 2) color = vec4(color.x);"
" color *= scissor;\n"
" result = color * innerCol;\n"
" }\n"
"#ifdef NANOVG_GL3\n"
" outColor = result;\n"
"#else\n"
" gl_FragColor = result;\n"
"#endif\n"
"}\n";
glnvg__checkError(gl, "init");
if (gl->flags & NVG_ANTIALIAS) {
if (glnvg__createShader(&gl->shader, "shader", shaderHeader, "#define EDGE_AA 1\n", fillVertShader, fillFragShader) == 0)
return 0;
} else {
if (glnvg__createShader(&gl->shader, "shader", shaderHeader, NULL, fillVertShader, fillFragShader) == 0)
return 0;
}
glnvg__checkError(gl, "uniform locations");
glnvg__getUniforms(&gl->shader);
// Create dynamic vertex array
#if defined NANOVG_GL3
glGenVertexArrays(1, &gl->vertArr);
#endif
glGenBuffers(1, &gl->vertBuf);
#if NANOVG_GL_USE_UNIFORMBUFFER
// Create UBOs
glUniformBlockBinding(gl->shader.prog, gl->shader.loc[GLNVG_LOC_FRAG], GLNVG_FRAG_BINDING);
glGenBuffers(1, &gl->fragBuf);
glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &align);
#endif
gl->fragSize = sizeof(GLNVGfragUniforms) + align - sizeof(GLNVGfragUniforms) % align;
// Some platforms does not allow to have samples to unset textures.
// Create empty one which is bound when there's no texture specified.
gl->dummyTex = glnvg__renderCreateTexture(gl, NVG_TEXTURE_ALPHA, 1, 1, 0, NULL);
glnvg__checkError(gl, "create done");
glFinish();
return 1;
}
static int glnvg__renderCreateTexture(void* uptr, int type, int w, int h, int imageFlags, const unsigned char* data)
{
GLNVGcontext* gl = (GLNVGcontext*)uptr;
GLNVGtexture* tex = glnvg__allocTexture(gl);
if (tex == NULL) return 0;
#ifdef NANOVG_GLES2
// Check for non-power of 2.
if (glnvg__nearestPow2(w) != (unsigned int)w || glnvg__nearestPow2(h) != (unsigned int)h) {
// No repeat
if ((imageFlags & NVG_IMAGE_REPEATX) != 0 || (imageFlags & NVG_IMAGE_REPEATY) != 0) {
printf("Repeat X/Y is not supported for non power-of-two textures (%d x %d)\n", w, h);
imageFlags &= ~(NVG_IMAGE_REPEATX | NVG_IMAGE_REPEATY);
}
// No mips.
if (imageFlags & NVG_IMAGE_GENERATE_MIPMAPS) {
printf("Mip-maps is not support for non power-of-two textures (%d x %d)\n", w, h);
imageFlags &= ~NVG_IMAGE_GENERATE_MIPMAPS;
}
}
#endif
glGenTextures(1, &tex->tex);
tex->width = w;
tex->height = h;
tex->type = type;
tex->flags = imageFlags;
glnvg__bindTexture(gl, tex->tex);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
#ifndef NANOVG_GLES2
glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->width);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
#endif
#if defined (NANOVG_GL2)
// GL 1.4 and later has support for generating mipmaps using a tex parameter.
if (imageFlags & NVG_IMAGE_GENERATE_MIPMAPS) {
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
}
#endif
if (type == NVG_TEXTURE_RGBA)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
else
#if defined(NANOVG_GLES2) || defined (NANOVG_GL2)
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, w, h, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
#elif defined(NANOVG_GLES3)
glTexImage2D(GL_TEXTURE_2D, 0, GL_R8, w, h, 0, GL_RED, GL_UNSIGNED_BYTE, data);
#else
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, w, h, 0, GL_RED, GL_UNSIGNED_BYTE, data);
#endif
if (imageFlags & NVG_IMAGE_GENERATE_MIPMAPS) {
if (imageFlags & NVG_IMAGE_NEAREST) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
} else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
}
} else {
if (imageFlags & NVG_IMAGE_NEAREST) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
} else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
}
if (imageFlags & NVG_IMAGE_NEAREST) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
} else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
if (imageFlags & NVG_IMAGE_REPEATX)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
else
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
if (imageFlags & NVG_IMAGE_REPEATY)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
else
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
#ifndef NANOVG_GLES2
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
#endif
// The new way to build mipmaps on GLES and GL3
#if !defined(NANOVG_GL2)
if (imageFlags & NVG_IMAGE_GENERATE_MIPMAPS) {
glGenerateMipmap(GL_TEXTURE_2D);
}
#endif
glnvg__checkError(gl, "create tex");
glnvg__bindTexture(gl, 0);
return tex->id;
}
static int glnvg__renderDeleteTexture(void* uptr, int image)
{
GLNVGcontext* gl = (GLNVGcontext*)uptr;
return glnvg__deleteTexture(gl, image);
}
static int glnvg__renderUpdateTexture(void* uptr, int image, int x, int y, int w, int h, const unsigned char* data)
{
GLNVGcontext* gl = (GLNVGcontext*)uptr;
GLNVGtexture* tex = glnvg__findTexture(gl, image);
if (tex == NULL) return 0;
glnvg__bindTexture(gl, tex->tex);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
#ifndef NANOVG_GLES2
glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->width);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, x);
glPixelStorei(GL_UNPACK_SKIP_ROWS, y);
#else
// No support for all of skip, need to update a whole row at a time.
if (tex->type == NVG_TEXTURE_RGBA)
data += y*tex->width*4;
else
data += y*tex->width;
x = 0;
w = tex->width;
#endif
if (tex->type == NVG_TEXTURE_RGBA)
glTexSubImage2D(GL_TEXTURE_2D, 0, x,y, w,h, GL_RGBA, GL_UNSIGNED_BYTE, data);
else
#if defined(NANOVG_GLES2) || defined(NANOVG_GL2)
glTexSubImage2D(GL_TEXTURE_2D, 0, x,y, w,h, GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
#else
glTexSubImage2D(GL_TEXTURE_2D, 0, x,y, w,h, GL_RED, GL_UNSIGNED_BYTE, data);
#endif
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
#ifndef NANOVG_GLES2
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
#endif
glnvg__bindTexture(gl, 0);
return 1;
}
static int glnvg__renderGetTextureSize(void* uptr, int image, int* w, int* h)
{
GLNVGcontext* gl = (GLNVGcontext*)uptr;
GLNVGtexture* tex = glnvg__findTexture(gl, image);
if (tex == NULL) return 0;
*w = tex->width;
*h = tex->height;
return 1;
}
static void glnvg__xformToMat3x4(float* m3, float* t)
{
m3[0] = t[0];
m3[1] = t[1];
m3[2] = 0.0f;
m3[3] = 0.0f;
m3[4] = t[2];
m3[5] = t[3];
m3[6] = 0.0f;
m3[7] = 0.0f;
m3[8] = t[4];
m3[9] = t[5];
m3[10] = 1.0f;
m3[11] = 0.0f;
}
static NVGcolor glnvg__premulColor(NVGcolor c)
{
c.r *= c.a;
c.g *= c.a;
c.b *= c.a;
return c;
}
static int glnvg__convertPaint(GLNVGcontext* gl, GLNVGfragUniforms* frag, NVGpaint* paint,
NVGscissor* scissor, float width, float fringe, float strokeThr)
{
GLNVGtexture* tex = NULL;
float invxform[6];
memset(frag, 0, sizeof(*frag));
frag->innerCol = glnvg__premulColor(paint->innerColor);
frag->outerCol = glnvg__premulColor(paint->outerColor);
if (scissor->extent[0] < -0.5f || scissor->extent[1] < -0.5f) {
memset(frag->scissorMat, 0, sizeof(frag->scissorMat));
frag->scissorExt[0] = 1.0f;
frag->scissorExt[1] = 1.0f;
frag->scissorScale[0] = 1.0f;
frag->scissorScale[1] = 1.0f;
} else {
nvgTransformInverse(invxform, scissor->xform);
glnvg__xformToMat3x4(frag->scissorMat, invxform);
frag->scissorExt[0] = scissor->extent[0];
frag->scissorExt[1] = scissor->extent[1];
frag->scissorScale[0] = sqrtf(scissor->xform[0]*scissor->xform[0] + scissor->xform[2]*scissor->xform[2]) / fringe;
frag->scissorScale[1] = sqrtf(scissor->xform[1]*scissor->xform[1] + scissor->xform[3]*scissor->xform[3]) / fringe;
}
memcpy(frag->extent, paint->extent, sizeof(frag->extent));
frag->strokeMult = (width*0.5f + fringe*0.5f) / fringe;
frag->strokeThr = strokeThr;
if (paint->image != 0) {
tex = glnvg__findTexture(gl, paint->image);
if (tex == NULL) return 0;
if ((tex->flags & NVG_IMAGE_FLIPY) != 0) {
float m1[6], m2[6];
nvgTransformTranslate(m1, 0.0f, frag->extent[1] * 0.5f);
nvgTransformMultiply(m1, paint->xform);
nvgTransformScale(m2, 1.0f, -1.0f);
nvgTransformMultiply(m2, m1);
nvgTransformTranslate(m1, 0.0f, -frag->extent[1] * 0.5f);
nvgTransformMultiply(m1, m2);
nvgTransformInverse(invxform, m1);
} else {
nvgTransformInverse(invxform, paint->xform);
}
frag->type = NSVG_SHADER_FILLIMG;
#if NANOVG_GL_USE_UNIFORMBUFFER
if (tex->type == NVG_TEXTURE_RGBA)
frag->texType = (tex->flags & NVG_IMAGE_PREMULTIPLIED) ? 0 : 1;
else
frag->texType = 2;
#else
if (tex->type == NVG_TEXTURE_RGBA)
frag->texType = (tex->flags & NVG_IMAGE_PREMULTIPLIED) ? 0.0f : 1.0f;
else
frag->texType = 2.0f;
#endif
// printf("frag->texType = %d\n", frag->texType);
} else {
frag->type = NSVG_SHADER_FILLGRAD;
frag->radius = paint->radius;
frag->feather = paint->feather;
nvgTransformInverse(invxform, paint->xform);
}
glnvg__xformToMat3x4(frag->paintMat, invxform);
return 1;
}
static GLNVGfragUniforms* nvg__fragUniformPtr(GLNVGcontext* gl, int i);
static void glnvg__setUniforms(GLNVGcontext* gl, int uniformOffset, int image)
{
GLNVGtexture* tex = NULL;
#if NANOVG_GL_USE_UNIFORMBUFFER
glBindBufferRange(GL_UNIFORM_BUFFER, GLNVG_FRAG_BINDING, gl->fragBuf, uniformOffset, sizeof(GLNVGfragUniforms));
#else
GLNVGfragUniforms* frag = nvg__fragUniformPtr(gl, uniformOffset);
glUniform4fv(gl->shader.loc[GLNVG_LOC_FRAG], NANOVG_GL_UNIFORMARRAY_SIZE, &(frag->uniformArray[0][0]));
#endif
if (image != 0) {
tex = glnvg__findTexture(gl, image);
}
// If no image is set, use empty texture
if (tex == NULL) {
tex = glnvg__findTexture(gl, gl->dummyTex);
}
glnvg__bindTexture(gl, tex != NULL ? tex->tex : 0);
glnvg__checkError(gl, "tex paint tex");
}
static void glnvg__renderViewport(void* uptr, float width, float height, float devicePixelRatio)
{
NVG_NOTUSED(devicePixelRatio);
GLNVGcontext* gl = (GLNVGcontext*)uptr;
gl->view[0] = width;
gl->view[1] = height;
}
static void glnvg__fill(GLNVGcontext* gl, GLNVGcall* call)
{
GLNVGpath* paths = &gl->paths[call->pathOffset];
int i, npaths = call->pathCount;
// Draw shapes
glEnable(GL_STENCIL_TEST);
glnvg__stencilMask(gl, 0xff);
glnvg__stencilFunc(gl, GL_ALWAYS, 0, 0xff);
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
// set bindpoint for solid loc
glnvg__setUniforms(gl, call->uniformOffset, 0);
glnvg__checkError(gl, "fill simple");
glStencilOpSeparate(GL_FRONT, GL_KEEP, GL_KEEP, GL_INCR_WRAP);
glStencilOpSeparate(GL_BACK, GL_KEEP, GL_KEEP, GL_DECR_WRAP);
glDisable(GL_CULL_FACE);
for (i = 0; i < npaths; i++)
glDrawArrays(GL_TRIANGLE_FAN, paths[i].fillOffset, paths[i].fillCount);
glEnable(GL_CULL_FACE);
// Draw anti-aliased pixels
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glnvg__setUniforms(gl, call->uniformOffset + gl->fragSize, call->image);
glnvg__checkError(gl, "fill fill");
if (gl->flags & NVG_ANTIALIAS) {
glnvg__stencilFunc(gl, GL_EQUAL, 0x00, 0xff);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
// Draw fringes
for (i = 0; i < npaths; i++)
glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
}
// Draw fill
glnvg__stencilFunc(gl, GL_NOTEQUAL, 0x0, 0xff);
glStencilOp(GL_ZERO, GL_ZERO, GL_ZERO);
glDrawArrays(GL_TRIANGLE_STRIP, call->triangleOffset, call->triangleCount);
glDisable(GL_STENCIL_TEST);
}
static void glnvg__convexFill(GLNVGcontext* gl, GLNVGcall* call)
{
GLNVGpath* paths = &gl->paths[call->pathOffset];
int i, npaths = call->pathCount;
glnvg__setUniforms(gl, call->uniformOffset, call->image);
glnvg__checkError(gl, "convex fill");
for (i = 0; i < npaths; i++) {
glDrawArrays(GL_TRIANGLE_FAN, paths[i].fillOffset, paths[i].fillCount);
// Draw fringes
if (paths[i].strokeCount > 0) {
glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
}
}
}
static void glnvg__stroke(GLNVGcontext* gl, GLNVGcall* call)
{
GLNVGpath* paths = &gl->paths[call->pathOffset];
int npaths = call->pathCount, i;
if (gl->flags & NVG_STENCIL_STROKES) {
glEnable(GL_STENCIL_TEST);
glnvg__stencilMask(gl, 0xff);
// Fill the stroke base without overlap
glnvg__stencilFunc(gl, GL_EQUAL, 0x0, 0xff);
glStencilOp(GL_KEEP, GL_KEEP, GL_INCR);
glnvg__setUniforms(gl, call->uniformOffset + gl->fragSize, call->image);
glnvg__checkError(gl, "stroke fill 0");
for (i = 0; i < npaths; i++)
glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
// Draw anti-aliased pixels.
glnvg__setUniforms(gl, call->uniformOffset, call->image);
glnvg__stencilFunc(gl, GL_EQUAL, 0x00, 0xff);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
for (i = 0; i < npaths; i++)
glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
// Clear stencil buffer.
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glnvg__stencilFunc(gl, GL_ALWAYS, 0x0, 0xff);
glStencilOp(GL_ZERO, GL_ZERO, GL_ZERO);
glnvg__checkError(gl, "stroke fill 1");
for (i = 0; i < npaths; i++)
glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glDisable(GL_STENCIL_TEST);
// glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset + gl->fragSize), paint, scissor, strokeWidth, fringe, 1.0f - 0.5f/255.0f);
} else {
glnvg__setUniforms(gl, call->uniformOffset, call->image);
glnvg__checkError(gl, "stroke fill");
// Draw Strokes
for (i = 0; i < npaths; i++)
glDrawArrays(GL_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
}
}
static void glnvg__triangles(GLNVGcontext* gl, GLNVGcall* call)
{
glnvg__setUniforms(gl, call->uniformOffset, call->image);
glnvg__checkError(gl, "triangles fill");
glDrawArrays(GL_TRIANGLES, call->triangleOffset, call->triangleCount);
}
static void glnvg__renderCancel(void* uptr) {
GLNVGcontext* gl = (GLNVGcontext*)uptr;
gl->nverts = 0;
gl->npaths = 0;
gl->ncalls = 0;
gl->nuniforms = 0;
}
static GLenum glnvg_convertBlendFuncFactor(int factor)
{
if (factor == NVG_ZERO)
return GL_ZERO;
if (factor == NVG_ONE)
return GL_ONE;
if (factor == NVG_SRC_COLOR)
return GL_SRC_COLOR;
if (factor == NVG_ONE_MINUS_SRC_COLOR)
return GL_ONE_MINUS_SRC_COLOR;
if (factor == NVG_DST_COLOR)
return GL_DST_COLOR;
if (factor == NVG_ONE_MINUS_DST_COLOR)
return GL_ONE_MINUS_DST_COLOR;
if (factor == NVG_SRC_ALPHA)
return GL_SRC_ALPHA;
if (factor == NVG_ONE_MINUS_SRC_ALPHA)
return GL_ONE_MINUS_SRC_ALPHA;
if (factor == NVG_DST_ALPHA)
return GL_DST_ALPHA;
if (factor == NVG_ONE_MINUS_DST_ALPHA)
return GL_ONE_MINUS_DST_ALPHA;
if (factor == NVG_SRC_ALPHA_SATURATE)
return GL_SRC_ALPHA_SATURATE;
return GL_INVALID_ENUM;
}
static GLNVGblend glnvg__blendCompositeOperation(NVGcompositeOperationState op)
{
GLNVGblend blend;
blend.srcRGB = glnvg_convertBlendFuncFactor(op.srcRGB);
blend.dstRGB = glnvg_convertBlendFuncFactor(op.dstRGB);
blend.srcAlpha = glnvg_convertBlendFuncFactor(op.srcAlpha);
blend.dstAlpha = glnvg_convertBlendFuncFactor(op.dstAlpha);
if (blend.srcRGB == GL_INVALID_ENUM || blend.dstRGB == GL_INVALID_ENUM || blend.srcAlpha == GL_INVALID_ENUM || blend.dstAlpha == GL_INVALID_ENUM)
{
blend.srcRGB = GL_ONE;
blend.dstRGB = GL_ONE_MINUS_SRC_ALPHA;
blend.srcAlpha = GL_ONE;
blend.dstAlpha = GL_ONE_MINUS_SRC_ALPHA;
}
return blend;
}
static void glnvg__renderFlush(void* uptr)
{
GLNVGcontext* gl = (GLNVGcontext*)uptr;
int i;
if (gl->ncalls > 0) {
// Setup require GL state.
glUseProgram(gl->shader.prog);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glFrontFace(GL_CCW);
glEnable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glDisable(GL_SCISSOR_TEST);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glStencilMask(0xffffffff);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
glStencilFunc(GL_ALWAYS, 0, 0xffffffff);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, 0);
#if NANOVG_GL_USE_STATE_FILTER
gl->boundTexture = 0;
gl->stencilMask = 0xffffffff;
gl->stencilFunc = GL_ALWAYS;
gl->stencilFuncRef = 0;
gl->stencilFuncMask = 0xffffffff;
gl->blendFunc.srcRGB = GL_INVALID_ENUM;
gl->blendFunc.srcAlpha = GL_INVALID_ENUM;
gl->blendFunc.dstRGB = GL_INVALID_ENUM;
gl->blendFunc.dstAlpha = GL_INVALID_ENUM;
#endif
#if NANOVG_GL_USE_UNIFORMBUFFER
// Upload ubo for frag shaders
glBindBuffer(GL_UNIFORM_BUFFER, gl->fragBuf);
glBufferData(GL_UNIFORM_BUFFER, gl->nuniforms * gl->fragSize, gl->uniforms, GL_STREAM_DRAW);
#endif
// Upload vertex data
#if defined NANOVG_GL3
glBindVertexArray(gl->vertArr);
#endif
glBindBuffer(GL_ARRAY_BUFFER, gl->vertBuf);
glBufferData(GL_ARRAY_BUFFER, gl->nverts * sizeof(NVGvertex), gl->verts, GL_STREAM_DRAW);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(NVGvertex), (const GLvoid*)(size_t)0);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(NVGvertex), (const GLvoid*)(0 + 2*sizeof(float)));
// Set view and texture just once per frame.
glUniform1i(gl->shader.loc[GLNVG_LOC_TEX], 0);
glUniform2fv(gl->shader.loc[GLNVG_LOC_VIEWSIZE], 1, gl->view);
#if NANOVG_GL_USE_UNIFORMBUFFER
glBindBuffer(GL_UNIFORM_BUFFER, gl->fragBuf);
#endif
for (i = 0; i < gl->ncalls; i++) {
GLNVGcall* call = &gl->calls[i];
glnvg__blendFuncSeparate(gl,&call->blendFunc);
if (call->type == GLNVG_FILL)
glnvg__fill(gl, call);
else if (call->type == GLNVG_CONVEXFILL)
glnvg__convexFill(gl, call);
else if (call->type == GLNVG_STROKE)
glnvg__stroke(gl, call);
else if (call->type == GLNVG_TRIANGLES)
glnvg__triangles(gl, call);
}
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
#if defined NANOVG_GL3
glBindVertexArray(0);
#endif
glDisable(GL_CULL_FACE);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glUseProgram(0);
glnvg__bindTexture(gl, 0);
}
// Reset calls
gl->nverts = 0;
gl->npaths = 0;
gl->ncalls = 0;
gl->nuniforms = 0;
}
static int glnvg__maxVertCount(const NVGpath* paths, int npaths)
{
int i, count = 0;
for (i = 0; i < npaths; i++) {
count += paths[i].nfill;
count += paths[i].nstroke;
}
return count;
}
static GLNVGcall* glnvg__allocCall(GLNVGcontext* gl)
{
GLNVGcall* ret = NULL;
if (gl->ncalls+1 > gl->ccalls) {
GLNVGcall* calls;
int ccalls = glnvg__maxi(gl->ncalls+1, 128) + gl->ccalls/2; // 1.5x Overallocate
calls = (GLNVGcall*)realloc(gl->calls, sizeof(GLNVGcall) * ccalls);
if (calls == NULL) return NULL;
gl->calls = calls;
gl->ccalls = ccalls;
}
ret = &gl->calls[gl->ncalls++];
memset(ret, 0, sizeof(GLNVGcall));
return ret;
}
static int glnvg__allocPaths(GLNVGcontext* gl, int n)
{
int ret = 0;
if (gl->npaths+n > gl->cpaths) {
GLNVGpath* paths;
int cpaths = glnvg__maxi(gl->npaths + n, 128) + gl->cpaths/2; // 1.5x Overallocate
paths = (GLNVGpath*)realloc(gl->paths, sizeof(GLNVGpath) * cpaths);
if (paths == NULL) return -1;
gl->paths = paths;
gl->cpaths = cpaths;
}
ret = gl->npaths;
gl->npaths += n;
return ret;
}
static int glnvg__allocVerts(GLNVGcontext* gl, int n)
{
int ret = 0;
if (gl->nverts+n > gl->cverts) {
NVGvertex* verts;
int cverts = glnvg__maxi(gl->nverts + n, 4096) + gl->cverts/2; // 1.5x Overallocate
verts = (NVGvertex*)realloc(gl->verts, sizeof(NVGvertex) * cverts);
if (verts == NULL) return -1;
gl->verts = verts;
gl->cverts = cverts;
}
ret = gl->nverts;
gl->nverts += n;
return ret;
}
static int glnvg__allocFragUniforms(GLNVGcontext* gl, int n)
{
int ret = 0, structSize = gl->fragSize;
if (gl->nuniforms+n > gl->cuniforms) {
unsigned char* uniforms;
int cuniforms = glnvg__maxi(gl->nuniforms+n, 128) + gl->cuniforms/2; // 1.5x Overallocate
uniforms = (unsigned char*)realloc(gl->uniforms, structSize * cuniforms);
if (uniforms == NULL) return -1;
gl->uniforms = uniforms;
gl->cuniforms = cuniforms;
}
ret = gl->nuniforms * structSize;
gl->nuniforms += n;
return ret;
}
static GLNVGfragUniforms* nvg__fragUniformPtr(GLNVGcontext* gl, int i)
{
return (GLNVGfragUniforms*)&gl->uniforms[i];
}
static void glnvg__vset(NVGvertex* vtx, float x, float y, float u, float v)
{
vtx->x = x;
vtx->y = y;
vtx->u = u;
vtx->v = v;
}
static void glnvg__renderFill(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, float fringe,
const float* bounds, const NVGpath* paths, int npaths)
{
GLNVGcontext* gl = (GLNVGcontext*)uptr;
GLNVGcall* call = glnvg__allocCall(gl);
NVGvertex* quad;
GLNVGfragUniforms* frag;
int i, maxverts, offset;
if (call == NULL) return;
call->type = GLNVG_FILL;
call->triangleCount = 4;
call->pathOffset = glnvg__allocPaths(gl, npaths);
if (call->pathOffset == -1) goto error;
call->pathCount = npaths;
call->image = paint->image;
call->blendFunc = glnvg__blendCompositeOperation(compositeOperation);
if (npaths == 1 && paths[0].convex)
{
call->type = GLNVG_CONVEXFILL;
call->triangleCount = 0; // Bounding box fill quad not needed for convex fill
}
// Allocate vertices for all the paths.
maxverts = glnvg__maxVertCount(paths, npaths) + call->triangleCount;
offset = glnvg__allocVerts(gl, maxverts);
if (offset == -1) goto error;
for (i = 0; i < npaths; i++) {
GLNVGpath* copy = &gl->paths[call->pathOffset + i];
const NVGpath* path = &paths[i];
memset(copy, 0, sizeof(GLNVGpath));
if (path->nfill > 0) {
copy->fillOffset = offset;
copy->fillCount = path->nfill;
memcpy(&gl->verts[offset], path->fill, sizeof(NVGvertex) * path->nfill);
offset += path->nfill;
}
if (path->nstroke > 0) {
copy->strokeOffset = offset;
copy->strokeCount = path->nstroke;
memcpy(&gl->verts[offset], path->stroke, sizeof(NVGvertex) * path->nstroke);
offset += path->nstroke;
}
}
// Setup uniforms for draw calls
if (call->type == GLNVG_FILL) {
// Quad
call->triangleOffset = offset;
quad = &gl->verts[call->triangleOffset];
glnvg__vset(&quad[0], bounds[2], bounds[3], 0.5f, 1.0f);
glnvg__vset(&quad[1], bounds[2], bounds[1], 0.5f, 1.0f);
glnvg__vset(&quad[2], bounds[0], bounds[3], 0.5f, 1.0f);
glnvg__vset(&quad[3], bounds[0], bounds[1], 0.5f, 1.0f);
call->uniformOffset = glnvg__allocFragUniforms(gl, 2);
if (call->uniformOffset == -1) goto error;
// Simple shader for stencil
frag = nvg__fragUniformPtr(gl, call->uniformOffset);
memset(frag, 0, sizeof(*frag));
frag->strokeThr = -1.0f;
frag->type = NSVG_SHADER_SIMPLE;
// Fill shader
glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset + gl->fragSize), paint, scissor, fringe, fringe, -1.0f);
} else {
call->uniformOffset = glnvg__allocFragUniforms(gl, 1);
if (call->uniformOffset == -1) goto error;
// Fill shader
glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset), paint, scissor, fringe, fringe, -1.0f);
}
return;
error:
// We get here if call alloc was ok, but something else is not.
// Roll back the last call to prevent drawing it.
if (gl->ncalls > 0) gl->ncalls--;
}
static void glnvg__renderStroke(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor, float fringe,
float strokeWidth, const NVGpath* paths, int npaths)
{
GLNVGcontext* gl = (GLNVGcontext*)uptr;
GLNVGcall* call = glnvg__allocCall(gl);
int i, maxverts, offset;
if (call == NULL) return;
call->type = GLNVG_STROKE;
call->pathOffset = glnvg__allocPaths(gl, npaths);
if (call->pathOffset == -1) goto error;
call->pathCount = npaths;
call->image = paint->image;
call->blendFunc = glnvg__blendCompositeOperation(compositeOperation);
// Allocate vertices for all the paths.
maxverts = glnvg__maxVertCount(paths, npaths);
offset = glnvg__allocVerts(gl, maxverts);
if (offset == -1) goto error;
for (i = 0; i < npaths; i++) {
GLNVGpath* copy = &gl->paths[call->pathOffset + i];
const NVGpath* path = &paths[i];
memset(copy, 0, sizeof(GLNVGpath));
if (path->nstroke) {
copy->strokeOffset = offset;
copy->strokeCount = path->nstroke;
memcpy(&gl->verts[offset], path->stroke, sizeof(NVGvertex) * path->nstroke);
offset += path->nstroke;
}
}
if (gl->flags & NVG_STENCIL_STROKES) {
// Fill shader
call->uniformOffset = glnvg__allocFragUniforms(gl, 2);
if (call->uniformOffset == -1) goto error;
glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset), paint, scissor, strokeWidth, fringe, -1.0f);
glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset + gl->fragSize), paint, scissor, strokeWidth, fringe, 1.0f - 0.5f/255.0f);
} else {
// Fill shader
call->uniformOffset = glnvg__allocFragUniforms(gl, 1);
if (call->uniformOffset == -1) goto error;
glnvg__convertPaint(gl, nvg__fragUniformPtr(gl, call->uniformOffset), paint, scissor, strokeWidth, fringe, -1.0f);
}
return;
error:
// We get here if call alloc was ok, but something else is not.
// Roll back the last call to prevent drawing it.
if (gl->ncalls > 0) gl->ncalls--;
}
static void glnvg__renderTriangles(void* uptr, NVGpaint* paint, NVGcompositeOperationState compositeOperation, NVGscissor* scissor,
const NVGvertex* verts, int nverts, float fringe)
{
GLNVGcontext* gl = (GLNVGcontext*)uptr;
GLNVGcall* call = glnvg__allocCall(gl);
GLNVGfragUniforms* frag;
if (call == NULL) return;
call->type = GLNVG_TRIANGLES;
call->image = paint->image;
call->blendFunc = glnvg__blendCompositeOperation(compositeOperation);
// Allocate vertices for all the paths.
call->triangleOffset = glnvg__allocVerts(gl, nverts);
if (call->triangleOffset == -1) goto error;
call->triangleCount = nverts;
memcpy(&gl->verts[call->triangleOffset], verts, sizeof(NVGvertex) * nverts);
// Fill shader
call->uniformOffset = glnvg__allocFragUniforms(gl, 1);
if (call->uniformOffset == -1) goto error;
frag = nvg__fragUniformPtr(gl, call->uniformOffset);
glnvg__convertPaint(gl, frag, paint, scissor, 1.0f, fringe, -1.0f);
frag->type = NSVG_SHADER_IMG;
return;
error:
// We get here if call alloc was ok, but something else is not.
// Roll back the last call to prevent drawing it.
if (gl->ncalls > 0) gl->ncalls--;
}
static void glnvg__renderDelete(void* uptr)
{
GLNVGcontext* gl = (GLNVGcontext*)uptr;
int i;
if (gl == NULL) return;
glnvg__deleteShader(&gl->shader);
#if NANOVG_GL3
#if NANOVG_GL_USE_UNIFORMBUFFER
if (gl->fragBuf != 0)
glDeleteBuffers(1, &gl->fragBuf);
#endif
if (gl->vertArr != 0)
glDeleteVertexArrays(1, &gl->vertArr);
#endif
if (gl->vertBuf != 0)
glDeleteBuffers(1, &gl->vertBuf);
for (i = 0; i < gl->ntextures; i++) {
if (gl->textures[i].tex != 0 && (gl->textures[i].flags & NVG_IMAGE_NODELETE) == 0)
glDeleteTextures(1, &gl->textures[i].tex);
}
free(gl->textures);
free(gl->paths);
free(gl->verts);
free(gl->uniforms);
free(gl->calls);
free(gl);
}
#if defined NANOVG_GL2
NVGcontext* nvgCreateGL2(int flags)
#elif defined NANOVG_GL3
NVGcontext* nvgCreateGL3(int flags)
#elif defined NANOVG_GLES2
NVGcontext* nvgCreateGLES2(int flags)
#elif defined NANOVG_GLES3
NVGcontext* nvgCreateGLES3(int flags)
#endif
{
NVGparams params;
NVGcontext* ctx = NULL;
GLNVGcontext* gl = (GLNVGcontext*)malloc(sizeof(GLNVGcontext));
if (gl == NULL) goto error;
memset(gl, 0, sizeof(GLNVGcontext));
memset(¶ms, 0, sizeof(params));
params.renderCreate = glnvg__renderCreate;
params.renderCreateTexture = glnvg__renderCreateTexture;
params.renderDeleteTexture = glnvg__renderDeleteTexture;
params.renderUpdateTexture = glnvg__renderUpdateTexture;
params.renderGetTextureSize = glnvg__renderGetTextureSize;
params.renderViewport = glnvg__renderViewport;
params.renderCancel = glnvg__renderCancel;
params.renderFlush = glnvg__renderFlush;
params.renderFill = glnvg__renderFill;
params.renderStroke = glnvg__renderStroke;
params.renderTriangles = glnvg__renderTriangles;
params.renderDelete = glnvg__renderDelete;
params.userPtr = gl;
params.edgeAntiAlias = flags & NVG_ANTIALIAS ? 1 : 0;
gl->flags = flags;
ctx = nvgCreateInternal(¶ms);
if (ctx == NULL) goto error;
return ctx;
error:
// 'gl' is freed by nvgDeleteInternal.
if (ctx != NULL) nvgDeleteInternal(ctx);
return NULL;
}
#if defined NANOVG_GL2
void nvgDeleteGL2(NVGcontext* ctx)
#elif defined NANOVG_GL3
void nvgDeleteGL3(NVGcontext* ctx)
#elif defined NANOVG_GLES2
void nvgDeleteGLES2(NVGcontext* ctx)
#elif defined NANOVG_GLES3
void nvgDeleteGLES3(NVGcontext* ctx)
#endif
{
nvgDeleteInternal(ctx);
}
#if defined NANOVG_GL2
int nvglCreateImageFromHandleGL2(NVGcontext* ctx, GLuint textureId, int w, int h, int imageFlags)
#elif defined NANOVG_GL3
int nvglCreateImageFromHandleGL3(NVGcontext* ctx, GLuint textureId, int w, int h, int imageFlags)
#elif defined NANOVG_GLES2
int nvglCreateImageFromHandleGLES2(NVGcontext* ctx, GLuint textureId, int w, int h, int imageFlags)
#elif defined NANOVG_GLES3
int nvglCreateImageFromHandleGLES3(NVGcontext* ctx, GLuint textureId, int w, int h, int imageFlags)
#endif
{
GLNVGcontext* gl = (GLNVGcontext*)nvgInternalParams(ctx)->userPtr;
GLNVGtexture* tex = glnvg__allocTexture(gl);
if (tex == NULL) return 0;
tex->type = NVG_TEXTURE_RGBA;
tex->tex = textureId;
tex->flags = imageFlags;
tex->width = w;
tex->height = h;
return tex->id;
}
#if defined NANOVG_GL2
GLuint nvglImageHandleGL2(NVGcontext* ctx, int image)
#elif defined NANOVG_GL3
GLuint nvglImageHandleGL3(NVGcontext* ctx, int image)
#elif defined NANOVG_GLES2
GLuint nvglImageHandleGLES2(NVGcontext* ctx, int image)
#elif defined NANOVG_GLES3
GLuint nvglImageHandleGLES3(NVGcontext* ctx, int image)
#endif
{
GLNVGcontext* gl = (GLNVGcontext*)nvgInternalParams(ctx)->userPtr;
GLNVGtexture* tex = glnvg__findTexture(gl, image);
return tex->tex;
}
#endif /* NANOVG_GL_IMPLEMENTATION */
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
src/nanovg_gl_utils.h | C/C++ Header | //
// Copyright (c) 2009-2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#ifndef NANOVG_GL_UTILS_H
#define NANOVG_GL_UTILS_H
struct NVGLUframebuffer {
NVGcontext* ctx;
GLuint fbo;
GLuint rbo;
GLuint texture;
int image;
};
typedef struct NVGLUframebuffer NVGLUframebuffer;
// Helper function to create GL frame buffer to render to.
void nvgluBindFramebuffer(NVGLUframebuffer* fb);
NVGLUframebuffer* nvgluCreateFramebuffer(NVGcontext* ctx, int w, int h, int imageFlags);
void nvgluDeleteFramebuffer(NVGLUframebuffer* fb);
#endif // NANOVG_GL_UTILS_H
#ifdef NANOVG_GL_IMPLEMENTATION
#if defined(NANOVG_GL3) || defined(NANOVG_GLES2) || defined(NANOVG_GLES3)
// FBO is core in OpenGL 3>.
# define NANOVG_FBO_VALID 1
#elif defined(NANOVG_GL2)
// On OS X including glext defines FBO on GL2 too.
# ifdef __APPLE__
# include <OpenGL/glext.h>
# define NANOVG_FBO_VALID 1
# endif
#endif
static GLint defaultFBO = -1;
NVGLUframebuffer* nvgluCreateFramebuffer(NVGcontext* ctx, int w, int h, int imageFlags)
{
#ifdef NANOVG_FBO_VALID
GLint defaultFBO;
GLint defaultRBO;
NVGLUframebuffer* fb = NULL;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &defaultFBO);
glGetIntegerv(GL_RENDERBUFFER_BINDING, &defaultRBO);
fb = (NVGLUframebuffer*)malloc(sizeof(NVGLUframebuffer));
if (fb == NULL) goto error;
memset(fb, 0, sizeof(NVGLUframebuffer));
fb->image = nvgCreateImageRGBA(ctx, w, h, imageFlags | NVG_IMAGE_FLIPY | NVG_IMAGE_PREMULTIPLIED, NULL);
#if defined NANOVG_GL2
fb->texture = nvglImageHandleGL2(ctx, fb->image);
#elif defined NANOVG_GL3
fb->texture = nvglImageHandleGL3(ctx, fb->image);
#elif defined NANOVG_GLES2
fb->texture = nvglImageHandleGLES2(ctx, fb->image);
#elif defined NANOVG_GLES3
fb->texture = nvglImageHandleGLES3(ctx, fb->image);
#endif
fb->ctx = ctx;
// frame buffer object
glGenFramebuffers(1, &fb->fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fb->fbo);
// render buffer object
glGenRenderbuffers(1, &fb->rbo);
glBindRenderbuffer(GL_RENDERBUFFER, fb->rbo);
glRenderbufferStorage(GL_RENDERBUFFER, GL_STENCIL_INDEX8, w, h);
// combine all
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, fb->texture, 0);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, fb->rbo);
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
#ifdef GL_DEPTH24_STENCIL8
// If GL_STENCIL_INDEX8 is not supported, try GL_DEPTH24_STENCIL8 as a fallback.
// Some graphics cards require a depth buffer along with a stencil.
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, w, h);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, fb->texture, 0);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, fb->rbo);
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
#endif // GL_DEPTH24_STENCIL8
goto error;
}
glBindFramebuffer(GL_FRAMEBUFFER, defaultFBO);
glBindRenderbuffer(GL_RENDERBUFFER, defaultRBO);
return fb;
error:
glBindFramebuffer(GL_FRAMEBUFFER, defaultFBO);
glBindRenderbuffer(GL_RENDERBUFFER, defaultRBO);
nvgluDeleteFramebuffer(fb);
return NULL;
#else
NVG_NOTUSED(ctx);
NVG_NOTUSED(w);
NVG_NOTUSED(h);
NVG_NOTUSED(imageFlags);
return NULL;
#endif
}
void nvgluBindFramebuffer(NVGLUframebuffer* fb)
{
#ifdef NANOVG_FBO_VALID
if (defaultFBO == -1) glGetIntegerv(GL_FRAMEBUFFER_BINDING, &defaultFBO);
glBindFramebuffer(GL_FRAMEBUFFER, fb != NULL ? fb->fbo : defaultFBO);
#else
NVG_NOTUSED(fb);
#endif
}
void nvgluDeleteFramebuffer(NVGLUframebuffer* fb)
{
#ifdef NANOVG_FBO_VALID
if (fb == NULL) return;
if (fb->fbo != 0)
glDeleteFramebuffers(1, &fb->fbo);
if (fb->rbo != 0)
glDeleteRenderbuffers(1, &fb->rbo);
if (fb->image >= 0)
nvgDeleteImage(fb->ctx, fb->image);
fb->ctx = NULL;
fb->fbo = 0;
fb->rbo = 0;
fb->texture = 0;
fb->image = -1;
free(fb);
#else
NVG_NOTUSED(fb);
#endif
}
#endif // NANOVG_GL_IMPLEMENTATION
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
src/nanovg_gxm.h | C/C++ Header | //
// Copyright (c) 2024 xfangfang xfangfang@126.com
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#ifndef NANOVG_GXM_H
#define NANOVG_GXM_H
#ifdef __cplusplus
extern "C"
{
#endif
#include "nanovg_gxm_utils.h"
// Create flags
enum NVGcreateFlags {
// Flag indicating if geometry based anti-aliasing is used (may not be needed when using MSAA).
NVG_ANTIALIAS = 1 << 0,
// Flag indicating if strokes should be drawn using stencil buffer. The rendering will be a little
// slower, but path overlaps (i.e. self-intersecting or sharp turns) will be drawn just once.
NVG_STENCIL_STROKES = 1 << 1,
// Flag indicating that additional debug checks are done.
NVG_DEBUG = 1 << 2,
};
NVGcontext *nvgCreateGXM(SceGxmContext *context, SceGxmShaderPatcher *shader_patcher, int flags);
void nvgDeleteGXM(NVGcontext *ctx);
int nvgxmCreateImageFromHandle(NVGcontext *ctx, SceGxmTexture *texture);
NVGXMtexture *nvgxmImageHandle(NVGcontext *ctx, int image);
// These are additional flags on top of NVGimageFlags.
enum NVGimageFlagsGXM {
NVG_IMAGE_NODELETE = 1 << 16, // Do not delete GXM texture handle.
NVG_IMAGE_DXT1 = 1 << 15,
NVG_IMAGE_DXT5 = 1 << 14,
NVG_IMAGE_LPDDR = 1 << 13,
NVG_IMAGE_CDRAM = 1 << 12,
};
int __attribute__((weak)) nanovg_gxm_default_mem_type = NVG_IMAGE_LPDDR;
int __attribute__((weak)) nvg_gxm_vertex_buffer_size = 1024 * 1024;
#ifdef __cplusplus
}
#endif
#endif /* NANOVG_GXM_H */
#ifdef NANOVG_GXM_IMPLEMENTATION
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "nanovg.h"
#ifdef USE_VITA_SHARK
#include <vitashark.h>
static void __attribute__((__optimize__("no-optimize-sibling-calls")))
shark_log_cb(const char *msg, shark_log_level msg_level, int line) {
switch (msg_level) {
case SHARK_LOG_INFO:
sceClibPrintf("\033[0;34m[GXP #%d]\033[0m %s\n", line, msg);
break;
case SHARK_LOG_WARNING:
sceClibPrintf("\033[0;33m[GXP #%d]\033[0m %s\n", line, msg);
break;
case SHARK_LOG_ERROR:
sceClibPrintf("\033[0;31m[GXP #%d]\033[0m %s\n", line, msg);
break;
}
}
#endif
enum GXMNVGuniformLoc {
GXMNVG_LOC_VIEWSIZE,
GXMNVG_LOC_FRAG,
GXMNVG_MAX_LOCS
};
enum GXMNVGshaderType {
NSVG_SHADER_FILLCOLOR,
NSVG_SHADER_FILLGRAD,
NSVG_SHADER_FILLIMG,
NSVG_SHADER_SIMPLE,
NSVG_SHADER_IMG
};
struct GXMNVGshader {
NVGXMshaderProgram prog;
const SceGxmProgramParameter *loc[GXMNVG_MAX_LOCS];
};
typedef struct GXMNVGshader GXMNVGshader;
struct GXMNVGtexture {
int id;
int width, height;
int type;
int flags;
int unused;
NVGXMtexture texture;
};
typedef struct GXMNVGtexture GXMNVGtexture;
struct GXMNVGblend {
SceGxmBlendFactor srcRGB;
SceGxmBlendFactor dstRGB;
SceGxmBlendFactor srcAlpha;
SceGxmBlendFactor dstAlpha;
};
typedef struct GXMNVGblend GXMNVGblend;
enum GXMNVGcallType {
GXMNVG_NONE = 0,
GXMNVG_FILL,
GXMNVG_CONVEXFILL,
GXMNVG_STROKE,
GXMNVG_TRIANGLES,
};
struct GXMNVGcall {
int type;
int image;
int pathOffset;
int pathCount;
int triangleOffset;
int triangleCount;
int uniformOffset;
GXMNVGblend blendFunc;
};
typedef struct GXMNVGcall GXMNVGcall;
struct GXMNVGpath {
int fillOffset;
int fillCount;
int strokeOffset;
int strokeCount;
};
typedef struct GXMNVGpath GXMNVGpath;
struct GXMNVGfragUniforms {
// note: after modifying layout or size of uniform array,
// don't forget to also update the fragment shader source!
#define NANOVG_GXM_UNIFORMARRAY_SIZE 11
union {
struct {
float scissorMat[12]; // matrices are actually float3x4
float paintMat[12];
struct NVGcolor innerCol;
struct NVGcolor outerCol;
float scissorExt[2];
float scissorScale[2];
float extent[2];
float radius;
float feather;
float strokeMult;
float strokeThr;
float texType;
float type;
};
float uniformArray[NANOVG_GXM_UNIFORMARRAY_SIZE][4];
};
};
typedef struct GXMNVGfragUniforms GXMNVGfragUniforms;
struct GXMNVGcontext {
SceGxmContext *context;
SceGxmShaderPatcher *shader_patcher;
GXMNVGshader shader;
GXMNVGshader depth_shader;
GXMNVGshader gradient_shader;
GXMNVGshader img_texture_shader;
GXMNVGshader text_texture_shader;
SceGxmFragmentProgram *boundFragmentProgram;
SceUID verticesUid;
struct NVGvertex *vertBuf;
GXMNVGtexture *textures;
float view[2];
int ntextures;
int ctextures;
int textureId;
int fragSize;
int flags;
// Per frame buffers
GXMNVGcall *calls;
int ccalls;
int ncalls;
GXMNVGpath *paths;
int cpaths;
int npaths;
struct NVGvertex *verts;
int cverts;
int nverts;
unsigned char *uniforms;
int cuniforms;
int nuniforms;
int dummyTex;
};
typedef struct GXMNVGcontext GXMNVGcontext;
static void gxmDrawArrays(GXMNVGcontext *gxm, SceGxmPrimitiveType type, int fillOffset, int fillCount) {
if (fillCount > UINT16_MAX || fillCount < 3) {
return;
}
static int index = 0;
if (index + fillCount > nvg_gxm_vertex_buffer_size) {
index = 0;
}
memcpy(&gxm->vertBuf[index], &gxm->verts[fillOffset], sizeof(NVGvertex) * fillCount);
GXM_CHECK_VOID(sceGxmSetVertexStream(gxm->context, 0, &gxm->vertBuf[index]));
GXM_CHECK_VOID(sceGxmDraw(gxm->context, type, SCE_GXM_INDEX_FORMAT_U16, gxmGetSharedIndices(), fillCount));
index += fillCount;
}
static void gxmnvg__setFragmentProgram(GXMNVGcontext* gxm, SceGxmFragmentProgram *frag)
{
if (gxm->boundFragmentProgram != frag) {
gxm->boundFragmentProgram = frag;
sceGxmSetFragmentProgram(gxm->context, frag);
}
}
static int gxmnvg__maxi(int a, int b) { return a > b ? a : b; }
static unsigned int gxmnvg__nearestPow2(unsigned int num) {
unsigned n = num > 0 ? num - 1 : 0;
n |= n >> 1;
n |= n >> 2;
n |= n >> 4;
n |= n >> 8;
n |= n >> 16;
n++;
return n;
}
static void
gxmnvg__stencilFunc(GXMNVGcontext *gxm, SceGxmStencilFunc func, SceGxmStencilOp stencilFail, SceGxmStencilOp depthFail,
SceGxmStencilOp depthPass) {
sceGxmSetFrontStencilFunc(gxm->context, func, stencilFail, depthFail, depthPass, 0xff, 0xff);
sceGxmSetBackStencilFunc(gxm->context, func, stencilFail, depthFail, depthPass, 0xff, 0xff);
}
static void gxmnvg__disableStencilTest(GXMNVGcontext *gxm) {
gxmnvg__stencilFunc(gxm, SCE_GXM_STENCIL_FUNC_ALWAYS,
SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP);
}
//static void gxmnvg__blendFuncSeparate(GXMNVGcontext *gxm, const GXMNVGblend *blend) {}
static GXMNVGtexture *gxmnvg__allocTexture(GXMNVGcontext *gxm) {
GXMNVGtexture *tex = NULL;
int i;
for (i = 0; i < gxm->ntextures; i++) {
if (gxm->textures[i].id == 0) {
tex = &gxm->textures[i];
break;
}
}
if (tex == NULL) {
if (gxm->ntextures + 1 > gxm->ctextures) {
GXMNVGtexture *textures;
int ctextures = gxmnvg__maxi(gxm->ntextures + 1, 4) + gxm->ctextures / 2; // 1.5x Overallocate
textures = (GXMNVGtexture *) realloc(gxm->textures, sizeof(GXMNVGtexture) * ctextures);
if (textures == NULL)
return NULL;
gxm->textures = textures;
gxm->ctextures = ctextures;
}
tex = &gxm->textures[gxm->ntextures++];
}
memset(tex, 0, sizeof(*tex));
tex->id = ++gxm->textureId;
return tex;
}
static GXMNVGtexture *gxmnvg__findTexture(GXMNVGcontext *gxm, int id) {
int i;
for (i = 0; i < gxm->ntextures; i++)
if (gxm->textures[i].id == id)
return &gxm->textures[i];
return NULL;
}
static int gxmnvg__deleteTexture(GXMNVGcontext *gxm, int id) {
int i;
for (i = 0; i < gxm->ntextures; i++) {
if (gxm->textures[i].id == id) {
if (gxm->textures[i].texture.uid != 0 && (gxm->textures[i].flags & NVG_IMAGE_NODELETE) == 0) {
gxm->textures[i].unused = 1;
}
return 1;
}
}
return 0;
}
static int gxmnvg__garbageCollector(GXMNVGcontext *gxm) {
int i;
for (i = 0; i < gxm->ntextures; i++) {
if (gxm->textures[i].unused == 0)
continue;
if (gxm->textures[i].unused > DISPLAY_BUFFER_COUNT) {
gpu_unmap_free(gxm->textures[i].texture.uid);
memset(&gxm->textures[i], 0, sizeof(gxm->textures[i]));
continue;
}
gxm->textures[i].unused++;
}
return 0;
}
static int gxmnvg__createShader(GXMNVGshader *shader, const char *name, const char *vshader, const char *fshader) {
return gxmCreateShader(&shader->prog, name, vshader, fshader);
}
static void gxmnvg__deleteShader(GXMNVGshader *shader) {
gxmDeleteShader(&shader->prog);
}
static void gxmnvg__getUniforms(GXMNVGshader *shader) {
if (shader->prog.vert_gxp)
shader->loc[GXMNVG_LOC_VIEWSIZE] = sceGxmProgramFindParameterByName(shader->prog.vert_gxp, "viewSize");
if (shader->prog.frag_gxp)
shader->loc[GXMNVG_LOC_FRAG] = sceGxmProgramFindParameterByName(shader->prog.frag_gxp, "frag");
}
static int gxmnvg__renderCreateTexture(void *uptr, int type, int w, int h, int imageFlags, const unsigned char *data);
static int gxmnvg__renderCreate(void *uptr) {
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
int align = 4;
#if USE_VITA_SHARK
char fillVertShader[] = "struct VS_OUTPUT\n"
"{\n"
" float4 position : POSITION;\n"
" float2 ftcoord : TEXCOORD0;\n"
" float2 fpos : TEXCOORD1;\n"
"};\n"
"void main(\n"
" float2 vertex : POSITION,\n"
" float2 tcoord : TEXCOORD0,\n"
" uniform float2 viewSize,\n"
" out VS_OUTPUT output\n"
")\n"
"{\n"
" output.ftcoord = tcoord;\n"
" output.fpos = vertex;\n"
" output.position = float4(2.0 * vertex.x / viewSize.x - 1.0, 1.0 - 2.0 * vertex.y / viewSize.y, 1.0f, 1.0f);\n"
"}\n";
#define OPTION_EDGE_AA 16
#define fragShaderHeader "#define EDGE_AA 0\n" \
"#define UNIFORMARRAY_SIZE 11\n" \
"uniform float4 frag[UNIFORMARRAY_SIZE];\n" \
"#define scissorMat float3x3(frag[0].xyz, frag[1].xyz, frag[2].xyz)\n" \
"#define paintMat float3x3(frag[3].xyz, frag[4].xyz, frag[5].xyz)\n" \
"#define innerCol frag[6]\n" \
"#define outerCol frag[7]\n" \
"#define scissorExt frag[8].xy\n" \
"#define scissorScale frag[8].zw\n" \
"#define extent frag[9].xy\n" \
"#define radius frag[9].z\n" \
"#define feather frag[9].w\n" \
"#define strokeMult frag[10].x\n" \
"#define strokeThr frag[10].y\n" \
"#define texType frag[10].z\n" \
"#define type frag[10].w\n"
#define fragShaderSdroundrect "float sdroundrect(float2 pt, float2 ext, float rad)\n" \
"{\n" \
" float2 ext2 = ext - float2(rad,rad);\n" \
" float2 d = abs(pt) - ext2;\n" \
" return min(max(d.x,d.y),0.0) + length(max(d,0.0)) - rad;\n" \
"}\n" \
#define fragShaderStrokeMask "#if EDGE_AA\n" \
"float strokeMask(float2 ftcoord)\n" \
"{\n" \
" return min(1.0, (1.0 - abs(ftcoord.x*2.0 - 1.0))*strokeMult) * min(1.0f, ftcoord.y);\n" \
"}\n" \
"#endif\n"
#define fragShaderStroke "#if EDGE_AA\n" \
" float strokeAlpha = strokeMask(ftcoord);\n" \
" if (strokeAlpha < strokeThr) discard;\n" \
"#else\n" \
" float strokeAlpha = 1.0f;\n" \
"#endif\n"
#define fragShaderScissorMask "float scissorMask(float2 p) {\n" \
" float2 sc = (abs((mul(scissorMat, float3(p,1.0))).xy) - scissorExt);\n" \
" sc = float2(0.5,0.5) - sc * scissorScale;\n" \
" return clamp(sc.x,0.0,1.0) * clamp(sc.y,0.0,1.0);\n" \
"}\n"
#define fragShaderScissor "float scissor = scissorMask(fpos);\n"
#define fragShaderMain "float4 main(\n" \
" uniform sampler2D tex : TEXUNIT0,\n" \
" float2 ftcoord: TEXCOORD0,\n" \
" float2 fpos: TEXCOORD1\n" \
") : COLOR\n"
char simpleFragShader[] = fragShaderHeader
fragShaderStrokeMask
fragShaderScissorMask
fragShaderMain
"{\n"
fragShaderStroke
fragShaderScissor
" return innerCol * strokeAlpha * scissor;\n"
"}\n";
char gradientFragShader[] = fragShaderHeader
fragShaderStrokeMask
fragShaderScissorMask
fragShaderSdroundrect
fragShaderMain
"{\n"
fragShaderStroke
fragShaderScissor
" float2 pt = (mul(paintMat, float3(fpos,1.0))).xy;\n"
" float d = clamp((sdroundrect(pt, extent, radius) + feather*0.5) / feather, 0.0, 1.0);\n"
" return lerp(innerCol, outerCol, d) * strokeAlpha * scissor;\n"
"}\n";
char imgTextureFragShader[] = fragShaderHeader
fragShaderStrokeMask
fragShaderScissorMask
fragShaderMain
"{\n"
fragShaderStroke
fragShaderScissor
" float2 pt = (mul(paintMat, float3(fpos,1.0))).xy / extent.xy;\n"
" float4 color = tex2D(tex, pt);\n"
" color = float4(color.xyz*color.w, color.w);\n"
" return color * innerCol * strokeAlpha * scissor;\n"
"}\n";
char textTextureFragShader[] = fragShaderHeader
fragShaderScissorMask
fragShaderMain
"{\n"
fragShaderScissor
" float4 color = tex2D(tex, ftcoord);\n"
" return color * innerCol * scissor;\n"
"}\n";
char depthFragShader[] = "void main() {}";
const char * simpleAAFragShader = simpleFragShader;
const char * gradientAAFragShader = gradientFragShader;
const char * imgTextureAAFragShader = imgTextureFragShader;
if (gxm->flags & NVG_ANTIALIAS) {
simpleFragShader[OPTION_EDGE_AA] = '1';
gradientFragShader[OPTION_EDGE_AA] = '1';
imgTextureFragShader[OPTION_EDGE_AA] = '1';
}
#else
static const unsigned char fillVertShader[408] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0x97, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x19, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x28, 0x01, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x08, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x09, 0x00, 0x00, 0x00, 0xa0, 0x00,
0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x74, 0x00, 0x00, 0x00, 0x90,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0xd8, 0x00, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x03, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xd4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xbc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x08,
0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x00, 0x00, 0x80, 0x02, 0x00, 0x80, 0x30, 0x02, 0x00,
0x00, 0x80, 0x0a, 0x00, 0x80, 0x30, 0x80, 0x00, 0x00, 0xa0, 0x82,
0x00, 0x80, 0x08, 0x00, 0x00, 0x00, 0x00, 0x40, 0x01, 0x04, 0xf8,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x44,
0xfa, 0x80, 0x00, 0x08, 0x83, 0x21, 0x0d, 0x80, 0x38, 0x00, 0x80,
0x24, 0xbf, 0x80, 0x18, 0x84, 0x08, 0x01, 0x00, 0x40, 0xf0, 0x86,
0x20, 0x80, 0x00, 0x81, 0xc0, 0x43, 0xf0, 0x22, 0x01, 0x80, 0x00,
0x41, 0x00, 0x04, 0x90, 0x85, 0x11, 0xa5, 0x08, 0x01, 0x80, 0x56,
0x90, 0x81, 0x11, 0x83, 0x08, 0x00, 0x00, 0x0c, 0x83, 0x21, 0x05,
0x80, 0x38, 0x00, 0x00, 0x20, 0xa0, 0x00, 0x50, 0x27, 0xfb, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x3f, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x80, 0xbf, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x40, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x13, 0x00,
0x00, 0x00, 0x02, 0x00, 0x03, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00,
0x04, 0x0b, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x27, 0x00, 0x00, 0x00, 0x00, 0x04, 0x0e, 0x00, 0x01, 0x00, 0x00,
0x00, 0x04, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x01, 0xe2,
0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x76,
0x65, 0x72, 0x74, 0x65, 0x78, 0x00, 0x74, 0x63, 0x6f, 0x6f, 0x72,
0x64, 0x00, 0x76, 0x69, 0x65, 0x77, 0x53, 0x69, 0x7a, 0x65, 0x00,
0x00
};
static const unsigned char simpleFragShader[356] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0x61, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x10,
0x18, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x24, 0x01, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x02, 0x00, 0x2d, 0x00, 0x02, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x94, 0x00,
0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x84,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2c, 0x00, 0x00, 0x00, 0xd4, 0x00, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x01, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb0, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x04, 0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x0f, 0x10, 0x40, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x04, 0x04, 0xa1, 0xa6, 0x41,
0xa4, 0x08, 0x00, 0x00, 0x00, 0x00, 0x40, 0x01, 0x04, 0xf8, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x44, 0xfa,
0x00, 0x00, 0x00, 0x00, 0x40, 0x09, 0x00, 0xf8, 0x02, 0x80, 0x81,
0xff, 0x9c, 0x0d, 0x80, 0x40, 0x00, 0xd2, 0x11, 0x80, 0x80, 0x88,
0x81, 0x18, 0x06, 0x82, 0xa1, 0xff, 0x9c, 0x0d, 0x80, 0x40, 0x00,
0xd2, 0x11, 0x90, 0x00, 0x81, 0x81, 0x18, 0x44, 0x04, 0x00, 0xf0,
0x82, 0x91, 0xa4, 0x00, 0x0c, 0x10, 0x04, 0x90, 0xa6, 0x01, 0xa5,
0x08, 0x16, 0x50, 0x04, 0xb0, 0x86, 0x09, 0xa4, 0x08, 0x00, 0x60,
0x04, 0x9f, 0x84, 0x09, 0xa5, 0x08, 0x8c, 0x00, 0xb6, 0xcf, 0x04,
0x30, 0x84, 0x28, 0x7c, 0x0f, 0x04, 0x00, 0x86, 0x07, 0xa4, 0x10,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x3f, 0x0e, 0x00, 0x00,
0x00, 0x00, 0x00, 0x2c, 0x00, 0x13, 0x00, 0x00, 0x00, 0x2c, 0x00,
0x01, 0x00, 0x10, 0x00, 0x00, 0x00, 0x01, 0xe4, 0x00, 0x00, 0x0b,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x72, 0x61, 0x67,
0x00, 0x00, 0x00, 0x00
};
static const unsigned char simpleAAFragShader[472] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0xd5, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d, 0x10,
0x18, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x98, 0x01, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x04, 0x00, 0x30, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x02, 0x00, 0x15, 0x00, 0x00, 0x00, 0xa8, 0x00,
0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, 0x94,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2c, 0x00, 0x00, 0x00, 0x48, 0x01, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x04, 0x00, 0x00, 0x00, 0x1c, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x44, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x2c, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x01, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x1c, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x04, 0x02, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x0f, 0x00, 0x40, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x10, 0x40, 0x0e, 0x00, 0x00,
0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
0x04, 0x04, 0xa1, 0xa6, 0x41, 0xa4, 0x08, 0x00, 0x00, 0x00, 0x00,
0x40, 0x01, 0x04, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x44, 0xfa, 0xd6, 0x05,
0x00, 0xf0, 0x86, 0x20, 0x80, 0x00, 0x14, 0x05, 0x00, 0xf0, 0xa6,
0x00, 0x84, 0x00, 0x17, 0xd0, 0x00, 0xb0, 0x82, 0x11, 0x80, 0x08,
0x00, 0x80, 0x24, 0xa0, 0x80, 0x00, 0x84, 0x08, 0x00, 0x8a, 0x00,
0xc0, 0x15, 0xc9, 0x8c, 0x48, 0x2c, 0x16, 0x00, 0xf0, 0x06, 0x04,
0x30, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x40, 0x01, 0x04, 0xf8, 0x00,
0x00, 0x00, 0x00, 0x00, 0x07, 0x44, 0xfa, 0x00, 0x00, 0x00, 0x00,
0x40, 0x09, 0x00, 0xf8, 0x02, 0x80, 0x81, 0xff, 0x9c, 0x0d, 0x80,
0x40, 0x01, 0xd2, 0x11, 0x80, 0x82, 0x88, 0x81, 0x18, 0x06, 0x82,
0xa1, 0xff, 0x9c, 0x0d, 0x80, 0x40, 0x01, 0xd2, 0x11, 0x90, 0x02,
0x81, 0x81, 0x18, 0x44, 0x04, 0x00, 0xf0, 0x86, 0x91, 0xa4, 0x00,
0x0c, 0x10, 0x04, 0x90, 0xa6, 0x01, 0xa5, 0x08, 0x17, 0x50, 0x04,
0xb0, 0x86, 0x19, 0xa4, 0x08, 0x00, 0x60, 0x04, 0x9f, 0x84, 0x09,
0xa5, 0x08, 0x80, 0x00, 0xb6, 0x0f, 0x04, 0x20, 0xc0, 0x20, 0x3c,
0x03, 0x04, 0xcf, 0x84, 0x07, 0xa4, 0x08, 0x3d, 0x0f, 0x04, 0x00,
0x86, 0x07, 0xa4, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
0xbf, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x03, 0x00,
0x00, 0x00, 0x00, 0x00, 0x80, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00,
0xe0, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00,
0x13, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x04, 0x00, 0x10, 0x00, 0x00,
0x00, 0x01, 0xe4, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x66, 0x72, 0x61, 0x67, 0x00, 0x00, 0x00, 0x00
};
static const unsigned char gradientFragShader[524] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0x09, 0x02, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x10,
0x18, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0xcc, 0x01, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x02, 0x00, 0x2e, 0x00, 0x04, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x1c, 0x00, 0x00, 0x00, 0xb4, 0x00,
0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0xa4,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2c, 0x00, 0x00, 0x00, 0x7c, 0x01, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x02, 0x00, 0x00, 0x00, 0x60, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x78, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x60, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x58, 0x01, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x50, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x04, 0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x0f, 0x10, 0x40, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xd2, 0x14, 0xc0, 0xa2, 0xa2, 0x41,
0x80, 0x08, 0x11, 0x04, 0x84, 0xa2, 0xa6, 0x41, 0xa4, 0x08, 0x82,
0x09, 0x20, 0x80, 0x0a, 0x00, 0x80, 0x30, 0x0e, 0x13, 0x04, 0xa1,
0xa6, 0x41, 0xa4, 0x08, 0x4f, 0x13, 0x44, 0xa1, 0xaa, 0x41, 0xc0,
0x08, 0x00, 0x00, 0x00, 0x00, 0x40, 0x01, 0x04, 0xf8, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x44, 0xfa, 0x00,
0x00, 0x00, 0x00, 0x40, 0x09, 0x00, 0xf8, 0x0e, 0x86, 0x81, 0xff,
0x9c, 0x0d, 0x80, 0x40, 0x00, 0xd2, 0x11, 0x80, 0x80, 0x88, 0x81,
0x18, 0x12, 0x88, 0xa1, 0xff, 0x9c, 0x0d, 0x80, 0x40, 0x00, 0xd2,
0x11, 0x90, 0x00, 0x81, 0x81, 0x18, 0xc0, 0x12, 0x44, 0xc0, 0xb4,
0x49, 0xa4, 0x08, 0x02, 0x80, 0xa1, 0xff, 0x9c, 0x0d, 0x80, 0x40,
0x00, 0xd2, 0x11, 0x90, 0x80, 0x88, 0x81, 0x18, 0x06, 0x82, 0xc1,
0xff, 0x9c, 0x0d, 0x80, 0x40, 0x00, 0xd2, 0x11, 0xa0, 0x00, 0x81,
0x81, 0x18, 0x4a, 0x04, 0x00, 0xf0, 0x82, 0x91, 0xa4, 0x00, 0x0c,
0x10, 0x04, 0x90, 0xa6, 0x01, 0xa5, 0x08, 0x16, 0x50, 0x04, 0xb0,
0x86, 0x19, 0xa4, 0x08, 0x00, 0x60, 0x44, 0x9f, 0x84, 0x09, 0xa5,
0x08, 0x41, 0x60, 0x04, 0x0f, 0x84, 0x18, 0xa4, 0x08, 0x00, 0x5f,
0x84, 0x1f, 0x84, 0x08, 0xa5, 0x08, 0x40, 0x60, 0x04, 0x1f, 0x84,
0x09, 0xa5, 0x08, 0x3c, 0x42, 0x3e, 0x0f, 0x80, 0x88, 0x81, 0x18,
0xfd, 0x10, 0x18, 0x10, 0x06, 0x20, 0xc0, 0x20, 0x01, 0x00, 0x80,
0x8f, 0x00, 0x08, 0x80, 0x30, 0x8c, 0x20, 0xd6, 0xcf, 0x00, 0x40,
0x84, 0x28, 0xfc, 0x14, 0x10, 0xcf, 0xa8, 0x08, 0xc0, 0x08, 0x56,
0xc0, 0x13, 0xff, 0x80, 0x08, 0x80, 0x00, 0x16, 0x5f, 0x04, 0x3f,
0x84, 0x18, 0xa4, 0x08, 0x00, 0x6f, 0x00, 0x1f, 0x80, 0x08, 0x81,
0x08, 0x04, 0x21, 0x01, 0xcf, 0x80, 0x87, 0xb1, 0x18, 0x7c, 0x0f,
0x00, 0x00, 0x82, 0x47, 0x80, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x3f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x3f,
0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x13, 0x00, 0x00,
0x00, 0x2c, 0x00, 0x02, 0x00, 0x10, 0x00, 0x00, 0x00, 0x01, 0xe4,
0x00, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66,
0x72, 0x61, 0x67, 0x00, 0x00, 0x00, 0x00
};
static const unsigned char gradientAAFragShader[640] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0x7d, 0x02, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d, 0x10,
0x18, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x40, 0x02, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x04, 0x00, 0x31, 0x00, 0x03, 0x00, 0x00,
0x00, 0x00, 0x00, 0x02, 0x00, 0x25, 0x00, 0x00, 0x00, 0xc8, 0x00,
0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, 0xb4,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2c, 0x00, 0x00, 0x00, 0xf0, 0x01, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x05, 0x00, 0x00, 0x00, 0xbc, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xec, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xd4, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcc, 0x01, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0xc4, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x04, 0x02, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x0f, 0x00, 0x40, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x10, 0x40, 0x0e, 0x00, 0x00,
0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd2,
0x14, 0xc0, 0xa2, 0xa2, 0x41, 0x80, 0x08, 0x11, 0x04, 0x84, 0xa2,
0xa6, 0x41, 0xa4, 0x08, 0x82, 0x09, 0x20, 0x80, 0x0a, 0x00, 0x80,
0x30, 0x0e, 0x13, 0x04, 0xa1, 0xa6, 0x41, 0xa4, 0x08, 0x4f, 0x13,
0x44, 0xa1, 0xaa, 0x41, 0xc0, 0x08, 0x00, 0x00, 0x00, 0x00, 0x40,
0x01, 0x04, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x44, 0xfa, 0xd7, 0x05, 0x10,
0xf0, 0x86, 0x00, 0x80, 0x00, 0x14, 0x05, 0x00, 0xf0, 0xa6, 0x00,
0x84, 0x00, 0x18, 0xd0, 0x00, 0xb0, 0x82, 0x01, 0x80, 0x08, 0x00,
0x80, 0x64, 0xa0, 0x80, 0x00, 0x84, 0x08, 0x01, 0x8a, 0x00, 0xc0,
0x15, 0xc9, 0x8c, 0x48, 0x2c, 0x16, 0x00, 0xf0, 0x06, 0x04, 0x30,
0xf9, 0x00, 0x00, 0x00, 0x00, 0x40, 0x01, 0x04, 0xf8, 0x00, 0x00,
0x00, 0x00, 0x00, 0x07, 0x44, 0xfa, 0x00, 0x00, 0x00, 0x00, 0x40,
0x09, 0x00, 0xf8, 0x0e, 0x86, 0x81, 0xff, 0x9c, 0x0d, 0x80, 0x40,
0x01, 0xd2, 0x11, 0x80, 0x82, 0x88, 0x81, 0x18, 0x12, 0x88, 0xa1,
0xff, 0x9c, 0x0d, 0x80, 0x40, 0x01, 0xd2, 0x11, 0x90, 0x02, 0x81,
0x81, 0x18, 0xc0, 0x12, 0x04, 0xe0, 0xb4, 0x49, 0xa4, 0x08, 0x02,
0x80, 0xa1, 0xff, 0x9c, 0x0d, 0x80, 0x40, 0x01, 0xd2, 0x11, 0x90,
0x82, 0x88, 0x81, 0x18, 0x06, 0x82, 0xc1, 0xff, 0x9c, 0x0d, 0x80,
0x40, 0x01, 0xd2, 0x11, 0xa0, 0x02, 0x81, 0x81, 0x18, 0x4a, 0x04,
0x00, 0xf0, 0x86, 0x91, 0xa4, 0x00, 0x0c, 0x10, 0x04, 0x90, 0xa6,
0x01, 0xa5, 0x08, 0x18, 0x50, 0x04, 0xb0, 0x86, 0x01, 0xa4, 0x08,
0x00, 0x60, 0x04, 0x90, 0x86, 0x09, 0xa5, 0x08, 0x00, 0x00, 0x40,
0xaf, 0x80, 0x18, 0x80, 0x08, 0x00, 0x60, 0x04, 0x0f, 0x84, 0x18,
0xa4, 0x08, 0x00, 0x5f, 0x84, 0x1f, 0x84, 0x08, 0xa5, 0x08, 0x00,
0x60, 0x04, 0x1f, 0x84, 0x09, 0xa5, 0x08, 0x3c, 0x42, 0x3e, 0x0f,
0x80, 0x88, 0x81, 0x18, 0x82, 0x10, 0x18, 0x10, 0x02, 0x20, 0xc0,
0x20, 0x01, 0x00, 0x80, 0x8f, 0x00, 0x08, 0x80, 0x30, 0x8c, 0x20,
0xd6, 0xcf, 0x00, 0x40, 0x84, 0x28, 0xfc, 0x14, 0x10, 0xcf, 0xa8,
0x08, 0xc0, 0x08, 0x56, 0xc0, 0x13, 0xff, 0x80, 0x28, 0x80, 0x00,
0x18, 0x5f, 0x04, 0x3f, 0x84, 0x08, 0xa4, 0x08, 0x00, 0x6f, 0x00,
0x1f, 0x80, 0x08, 0x81, 0x08, 0x04, 0x21, 0x01, 0xcf, 0x80, 0x87,
0xb1, 0x18, 0x7c, 0x0f, 0x00, 0x00, 0x82, 0x47, 0x80, 0x10, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x02, 0x00, 0x00, 0x00,
0x00, 0x00, 0x80, 0xbf, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x40, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x3f, 0x00, 0x00,
0x00, 0x00, 0x00, 0xe0, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2c, 0x00, 0x13, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x05, 0x00,
0x10, 0x00, 0x00, 0x00, 0x01, 0xe4, 0x00, 0x00, 0x0b, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x72, 0x61, 0x67, 0x00, 0x00,
0x00, 0x00
};
static const unsigned char imgTextureFragShader[512] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0xfd, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x10,
0x18, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x8c, 0x01, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x02, 0x00, 0x31, 0x00, 0x06, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x15, 0x00, 0x00, 0x00, 0xa4, 0x00,
0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x94,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2c, 0x00, 0x00, 0x00, 0x2c, 0x01, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x01, 0x00, 0x00, 0x00, 0x18, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x38, 0x01, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x01, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x10, 0x01, 0x00, 0x00, 0x3c, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x04, 0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x0f, 0x10, 0x40, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x09, 0xa0, 0x80, 0x02, 0x00,
0x80, 0x30, 0x02, 0x09, 0xa0, 0x80, 0x0a, 0x00, 0x80, 0x30, 0x11,
0x04, 0x04, 0xa1, 0xa6, 0x41, 0xa4, 0x08, 0x00, 0x00, 0x00, 0x00,
0x40, 0x01, 0x04, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x07, 0x44, 0xfa, 0x00, 0x00, 0x00, 0x00, 0x40, 0x09,
0x00, 0xf8, 0x0e, 0x86, 0x81, 0xff, 0x9c, 0x0d, 0x00, 0x40, 0x00,
0xd2, 0x11, 0x80, 0x80, 0x88, 0x01, 0x18, 0x12, 0x88, 0xa1, 0xff,
0x9c, 0x0d, 0x00, 0x40, 0x00, 0xd2, 0x11, 0x90, 0x00, 0x81, 0x01,
0x18, 0x40, 0x01, 0x04, 0xc0, 0x84, 0x41, 0x24, 0x08, 0x00, 0x0b,
0x40, 0xe0, 0x00, 0xc4, 0x41, 0xe0, 0x02, 0x80, 0x81, 0xff, 0x9c,
0x0d, 0x80, 0x40, 0x00, 0xd2, 0x11, 0x80, 0x80, 0x88, 0x81, 0x18,
0x06, 0x82, 0xa1, 0xff, 0x9c, 0x0d, 0x80, 0x40, 0x00, 0xd2, 0x11,
0x90, 0x00, 0x81, 0x81, 0x18, 0x44, 0x04, 0x00, 0xf0, 0x82, 0x91,
0xa4, 0x00, 0x0c, 0x10, 0x04, 0x90, 0xa6, 0x01, 0xa5, 0x08, 0x18,
0x50, 0x04, 0xb0, 0x86, 0x01, 0xa4, 0x08, 0x00, 0x00, 0x00, 0x00,
0x00, 0x08, 0x20, 0xf9, 0x00, 0x60, 0x04, 0x9f, 0x84, 0x09, 0xa5,
0x08, 0x81, 0x00, 0xb6, 0x0f, 0x04, 0x30, 0x84, 0x28, 0xbd, 0x80,
0x64, 0x0f, 0x80, 0x4f, 0xc4, 0x08, 0x3d, 0x03, 0x44, 0xcf, 0x84,
0x47, 0xa4, 0x08, 0x7c, 0x0f, 0x04, 0x00, 0x86, 0x07, 0xa4, 0x10,
0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x3f, 0x00, 0x00, 0x00,
0x00, 0x01, 0x00, 0x01, 0x00, 0x02, 0x00, 0x02, 0x00, 0x03, 0x00,
0x03, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x13,
0x00, 0x00, 0x00, 0x2c, 0x00, 0x05, 0x00, 0x40, 0x00, 0x00, 0x00,
0x01, 0xe4, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x35, 0x00, 0x00, 0x00, 0x02, 0x04, 0x01, 0x00, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x72, 0x61, 0x67, 0x00, 0x74,
0x65, 0x78, 0x00, 0x00, 0x00, 0x00
};
static const unsigned char imgTextureAAFragShader[628] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0x71, 0x02, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d, 0x10,
0x18, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x04, 0x00, 0x34, 0x00, 0x05, 0x00, 0x00,
0x00, 0x00, 0x00, 0x02, 0x00, 0x1e, 0x00, 0x00, 0x00, 0xb8, 0x00,
0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, 0xa4,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2c, 0x00, 0x00, 0x00, 0xa0, 0x01, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x04, 0x00, 0x00, 0x00, 0x74, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xac, 0x01, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x84, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8c, 0x01, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x84, 0x01, 0x00, 0x00, 0xb0, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x04, 0x02, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x0f, 0x00, 0x40, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x10, 0x40, 0x0e, 0x00, 0x00,
0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x09, 0xa0, 0x80, 0x02, 0x00, 0x80, 0x30, 0x02, 0x09, 0xa0, 0x80,
0x0a, 0x00, 0x80, 0x30, 0x11, 0x04, 0x04, 0xa1, 0xa6, 0x41, 0xa4,
0x08, 0x00, 0x00, 0x00, 0x00, 0x40, 0x01, 0x04, 0xf8, 0x00, 0x00,
0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x44, 0xfa, 0x56, 0x06, 0x00, 0xf0, 0x86, 0x20, 0x80, 0x00,
0x14, 0x05, 0x00, 0xf0, 0xa6, 0x00, 0x84, 0x00, 0x19, 0xd0, 0x00,
0xb0, 0x82, 0x11, 0x80, 0x08, 0x00, 0x80, 0xa4, 0xa0, 0x80, 0x00,
0x84, 0x08, 0x02, 0x8a, 0x00, 0xc0, 0x15, 0xc9, 0x8c, 0x48, 0x2c,
0x16, 0x00, 0xf0, 0x06, 0x04, 0x30, 0xf9, 0x00, 0x00, 0x00, 0x00,
0x40, 0x01, 0x04, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x44,
0xfa, 0x00, 0x00, 0x00, 0x00, 0x40, 0x09, 0x00, 0xf8, 0x0e, 0x86,
0x81, 0xff, 0x9c, 0x0d, 0x00, 0x40, 0x01, 0xd2, 0x11, 0x80, 0x82,
0x88, 0x01, 0x18, 0x12, 0x88, 0xa1, 0xff, 0x9c, 0x0d, 0x00, 0x40,
0x01, 0xd2, 0x11, 0x90, 0x02, 0x81, 0x01, 0x18, 0x40, 0x01, 0x04,
0xe0, 0x86, 0x41, 0x24, 0x08, 0x80, 0x0b, 0x00, 0xe0, 0x04, 0xc4,
0x41, 0xe0, 0x02, 0x80, 0x81, 0xff, 0x9c, 0x0d, 0x80, 0x40, 0x01,
0xd2, 0x11, 0x80, 0x82, 0x88, 0x81, 0x18, 0x06, 0x82, 0xa1, 0xff,
0x9c, 0x0d, 0x80, 0x40, 0x01, 0xd2, 0x11, 0x90, 0x02, 0x81, 0x81,
0x18, 0x44, 0x04, 0x00, 0xf0, 0x86, 0x91, 0xa4, 0x00, 0x0c, 0x10,
0x04, 0x90, 0xa6, 0x01, 0xa5, 0x08, 0x19, 0x50, 0x04, 0xb0, 0x86,
0x11, 0xa4, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x20, 0xf9,
0x00, 0x60, 0x04, 0x9f, 0x84, 0x09, 0xa5, 0x08, 0x80, 0x00, 0xb6,
0x0f, 0x04, 0x30, 0x84, 0x28, 0x7d, 0x80, 0x64, 0x0f, 0x80, 0x4f,
0xc4, 0x08, 0x3d, 0x03, 0x44, 0xcf, 0x84, 0x4f, 0xa4, 0x08, 0x82,
0x07, 0xb6, 0x0f, 0x00, 0x31, 0xc0, 0x28, 0x3d, 0x0f, 0x04, 0x00,
0x86, 0x07, 0xa4, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
0xbf, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x07, 0x00,
0x00, 0x00, 0x00, 0x00, 0x80, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00,
0xe0, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00,
0x02, 0x00, 0x04, 0x00, 0x03, 0x00, 0x05, 0x00, 0x0e, 0x00, 0x00,
0x00, 0x00, 0x00, 0x2c, 0x00, 0x13, 0x00, 0x00, 0x00, 0x2c, 0x00,
0x08, 0x00, 0x40, 0x00, 0x00, 0x00, 0x01, 0xe4, 0x00, 0x00, 0x0b,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x35, 0x00, 0x00, 0x00,
0x02, 0x04, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x66, 0x72, 0x61, 0x67, 0x00, 0x74, 0x65, 0x78, 0x00, 0x00, 0x00,
0x00
};
static const unsigned char textTextureFragShader[416] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0x9d, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x18,
0x18, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x2c, 0x01, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x06, 0x00, 0x2d, 0x00, 0x02, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x0d, 0x00, 0x00, 0x00, 0x94, 0x00,
0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x84,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2c, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x01, 0x00, 0x00, 0x00, 0xc8, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0xb0, 0x00, 0x00, 0x00, 0xdc, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x04, 0x01, 0x00, 0x01, 0x00, 0x04, 0x00, 0x00, 0x00,
0x00, 0x19, 0x40, 0x0e, 0x00, 0x00, 0x00, 0x00, 0xd0, 0x00, 0x00,
0x00, 0x30, 0x00, 0x00, 0x00, 0x11, 0x04, 0x04, 0xa1, 0xa6, 0x41,
0xa4, 0x08, 0x00, 0x00, 0x00, 0x00, 0x40, 0x01, 0x04, 0xf8, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x44, 0xfa,
0x00, 0x00, 0x00, 0x00, 0x40, 0x09, 0x00, 0xf8, 0x02, 0x80, 0x81,
0xff, 0x9c, 0x0d, 0x80, 0x40, 0x00, 0xd2, 0x11, 0x80, 0x80, 0x88,
0x81, 0x18, 0x06, 0x82, 0xa1, 0xff, 0x9c, 0x0d, 0x80, 0x40, 0x00,
0xd2, 0x11, 0x90, 0x00, 0x81, 0x81, 0x18, 0x44, 0x04, 0x00, 0xf0,
0x82, 0x91, 0xa4, 0x00, 0x0c, 0x10, 0x04, 0x90, 0xa6, 0x01, 0xa5,
0x08, 0x16, 0x50, 0x04, 0xb0, 0x86, 0x09, 0xa4, 0x08, 0x00, 0x60,
0x04, 0x9f, 0x84, 0x09, 0xa5, 0x08, 0x81, 0x00, 0xb6, 0x8f, 0x04,
0x30, 0x84, 0x28, 0x3c, 0x03, 0x04, 0xcf, 0x84, 0x07, 0xa4, 0x08,
0x3d, 0x0f, 0x04, 0x00, 0x86, 0x47, 0xa4, 0x10, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x80, 0x3f, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00,
0x2c, 0x00, 0x13, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x01, 0x00, 0x40,
0x00, 0x00, 0x00, 0x01, 0xe4, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x35, 0x00, 0x00, 0x00, 0x02, 0x04, 0x01,
0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x72, 0x61,
0x67, 0x00, 0x74, 0x65, 0x78, 0x00, 0x00, 0x00, 0x00
};
static const unsigned char depthFragShader[188] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0xbc, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x94, 0x00, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x74, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x68, 0x00, 0x00, 0x00, 0x64,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x07, 0x04, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x44,
0xfa
};
#endif
if (gxm->flags & NVG_ANTIALIAS) {
if (!gxmnvg__createShader(&gxm->shader, "simpleAA", (const char *) fillVertShader, (const char *) simpleAAFragShader))
return 0;
if (!gxmnvg__createShader(&gxm->gradient_shader, "gradientAA", NULL, (const char *) gradientAAFragShader))
return 0;
if (!gxmnvg__createShader(&gxm->img_texture_shader, "imgTextureAA", NULL, (const char *) imgTextureAAFragShader))
return 0;
} else {
if (!gxmnvg__createShader(&gxm->shader, "simple", (const char *) fillVertShader, (const char *) simpleFragShader))
return 0;
if (!gxmnvg__createShader(&gxm->gradient_shader, "gradient", NULL, (const char*) gradientFragShader))
return 0;
if (!gxmnvg__createShader(&gxm->img_texture_shader, "imgTexture", NULL, (const char *) imgTextureFragShader))
return 0;
}
if (!gxmnvg__createShader(&gxm->text_texture_shader, "textTexture", NULL, (const char *) textTextureFragShader))
return 0;
if (!gxmnvg__createShader(&gxm->depth_shader, "depth", NULL, (const char *) depthFragShader))
return 0;
gxm->vertBuf = (struct NVGvertex *) gpu_alloc_map(
SCE_KERNEL_MEMBLOCK_TYPE_USER_RW_UNCACHE,
SCE_GXM_MEMORY_ATTRIB_READ,
sizeof(struct NVGvertex) * nvg_gxm_vertex_buffer_size,
&gxm->verticesUid);
const SceGxmProgramParameter *basic_vertex_param = sceGxmProgramFindParameterByName(gxm->shader.prog.vert_gxp,
"vertex");
const SceGxmProgramParameter *basic_tcoord_param = sceGxmProgramFindParameterByName(gxm->shader.prog.vert_gxp,
"tcoord");
SceGxmVertexAttribute basic_vertex_attributes[2];
basic_vertex_attributes[0].streamIndex = 0;
basic_vertex_attributes[0].offset = 0;
basic_vertex_attributes[0].format = SCE_GXM_ATTRIBUTE_FORMAT_F32;
basic_vertex_attributes[0].componentCount = 2;
basic_vertex_attributes[0].regIndex = sceGxmProgramParameterGetResourceIndex(basic_vertex_param);
basic_vertex_attributes[1].streamIndex = 0;
basic_vertex_attributes[1].offset = 2 * sizeof(float);
basic_vertex_attributes[1].format = SCE_GXM_ATTRIBUTE_FORMAT_F32;
basic_vertex_attributes[1].componentCount = 2;
basic_vertex_attributes[1].regIndex = sceGxmProgramParameterGetResourceIndex(basic_tcoord_param);
SceGxmVertexStream basic_vertex_stream[1];
basic_vertex_stream[0].stride = sizeof(struct NVGvertex);
basic_vertex_stream[0].indexSource = SCE_GXM_INDEX_SOURCE_INDEX_16BIT;
GXM_CHECK(gxmCreateVertexProgram(gxm->shader.prog.vert_id,
basic_vertex_attributes,
sizeof(basic_vertex_attributes) / sizeof(SceGxmVertexAttribute),
basic_vertex_stream,
sizeof(basic_vertex_stream) / sizeof(SceGxmVertexStream),
&gxm->shader.prog.vert));
/**
* TODO: Custom blend function
* Currently, these functions in nanovg.h are not supported:
* nvgGlobalCompositeOperation, nvgGlobalCompositeBlendFunc, nvgGlobalCompositeBlendFuncSeparate
* The default behavior is equivalent to: nvgGlobalCompositeOperation(NVG_SOURCE_OVER)
*/
SceGxmBlendInfo blendInfo;
blendInfo.colorMask = SCE_GXM_COLOR_MASK_ALL;
blendInfo.colorFunc = SCE_GXM_BLEND_FUNC_ADD;
blendInfo.alphaFunc = SCE_GXM_BLEND_FUNC_ADD;
blendInfo.colorSrc = SCE_GXM_BLEND_FACTOR_ONE;
blendInfo.colorDst = SCE_GXM_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
blendInfo.alphaSrc = SCE_GXM_BLEND_FACTOR_ONE;
blendInfo.alphaDst = SCE_GXM_BLEND_FACTOR_ONE_MINUS_DST_ALPHA;
GXM_CHECK(gxmCreateFragmentProgram(gxm->shader.prog.frag_id,
SCE_GXM_OUTPUT_REGISTER_FORMAT_UCHAR4,
&blendInfo, gxm->shader.prog.vert_gxp,
&gxm->shader.prog.frag));
gxmnvg__getUniforms(&gxm->shader);
GXM_CHECK(gxmCreateFragmentProgram(gxm->gradient_shader.prog.frag_id,
SCE_GXM_OUTPUT_REGISTER_FORMAT_UCHAR4,
&blendInfo, gxm->shader.prog.vert_gxp,
&gxm->gradient_shader.prog.frag));
gxmnvg__getUniforms(&gxm->gradient_shader);
GXM_CHECK(gxmCreateFragmentProgram(gxm->img_texture_shader.prog.frag_id,
SCE_GXM_OUTPUT_REGISTER_FORMAT_UCHAR4,
&blendInfo, gxm->shader.prog.vert_gxp,
&gxm->img_texture_shader.prog.frag));
gxmnvg__getUniforms(&gxm->img_texture_shader);
GXM_CHECK(gxmCreateFragmentProgram(gxm->text_texture_shader.prog.frag_id,
SCE_GXM_OUTPUT_REGISTER_FORMAT_UCHAR4,
&blendInfo, gxm->shader.prog.vert_gxp,
&gxm->text_texture_shader.prog.frag));
gxmnvg__getUniforms(&gxm->text_texture_shader);
GXM_CHECK(gxmCreateFragmentProgram(gxm->depth_shader.prog.frag_id,
SCE_GXM_OUTPUT_REGISTER_FORMAT_UCHAR4,
NULL, gxm->shader.prog.vert_gxp,
&gxm->depth_shader.prog.frag));
gxm->fragSize = ALIGN(sizeof(GXMNVGfragUniforms), align);
// Some platforms does not allow to have samples to unset textures.
// Create empty one which is bound when there's no texture specified.
gxm->dummyTex = gxmnvg__renderCreateTexture(gxm, NVG_TEXTURE_ALPHA, 1, 1, 0, NULL);
return 1;
}
static int gxmnvg__renderCreateTexture(void *uptr, int type, int w, int h, int imageFlags, const unsigned char *data) {
if (w > 4096 || h > 4096)
return 0;
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
GXMNVGtexture *tex = gxmnvg__allocTexture(gxm);
if (tex == NULL)
return 0;
SceGxmTextureFormat format =
type == NVG_TEXTURE_RGBA ? SCE_GXM_TEXTURE_FORMAT_U8U8U8U8_ABGR : SCE_GXM_TEXTURE_FORMAT_U8_RRRR;
int aligned_w = ALIGN(w, 8);
int spp = type == NVG_TEXTURE_RGBA ? 4 : 1;
uint32_t tex_size, stride, mem_type1, mem_type2;
int ret;
int swizzled = ((imageFlags & NVG_IMAGE_DXT1) || (imageFlags & NVG_IMAGE_DXT5)) && (type == NVG_TEXTURE_RGBA);
if (swizzled) {
format = imageFlags & NVG_IMAGE_DXT1 ? SCE_GXM_TEXTURE_FORMAT_UBC1_ABGR : SCE_GXM_TEXTURE_FORMAT_UBC3_ABGR;
tex_size = gxmnvg__nearestPow2(w) * gxmnvg__nearestPow2(h);
if (imageFlags & NVG_IMAGE_DXT1)
tex_size = tex_size >> 1;
} else {
tex_size = aligned_w * h * spp;
}
if (!(imageFlags & NVG_IMAGE_LPDDR || imageFlags & NVG_IMAGE_CDRAM)) {
imageFlags |= nanovg_gxm_default_mem_type;
}
if (imageFlags & NVG_IMAGE_LPDDR) {
mem_type1 = SCE_KERNEL_MEMBLOCK_TYPE_USER_RW_UNCACHE;
mem_type2 = SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW;
} else {
mem_type1 = SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW;
mem_type2 = SCE_KERNEL_MEMBLOCK_TYPE_USER_RW_UNCACHE;
}
tex->texture.data = (uint8_t *) gpu_alloc_map(mem_type1,
SCE_GXM_MEMORY_ATTRIB_RW,
tex_size, &tex->texture.uid);
if (tex->texture.data == NULL) {
tex->texture.data = (uint8_t *) gpu_alloc_map(mem_type2,
SCE_GXM_MEMORY_ATTRIB_RW,
tex_size, &tex->texture.uid);
}
if (tex->texture.data == NULL) {
return 0;
}
/* Clear the texture */
if (data == NULL) {
memset(tex->texture.data, 0, tex_size);
} else if (swizzled || aligned_w == w) {
memcpy(tex->texture.data, data, tex_size);
} else {
stride = aligned_w * spp;
for (int i = 0; i < h; i++) {
memcpy(tex->texture.data + i * stride, data + i * w * spp, w * spp);
}
}
// TODO: Support mipmap
imageFlags &= ~NVG_IMAGE_GENERATE_MIPMAPS;
/* Create the gxm texture */
if (swizzled) {
ret = sceGxmTextureInitSwizzledArbitrary(&tex->texture.tex, tex->texture.data, format, w, h, 0);
} else {
ret = sceGxmTextureInitLinear(&tex->texture.tex, tex->texture.data, format, w, h, 0);
}
if (ret < 0) {
GXM_PRINT_ERROR(ret);
gpu_unmap_free(tex->texture.uid);
tex->texture.uid = 0;
return 0;
}
if (imageFlags & NVG_IMAGE_GENERATE_MIPMAPS) {
if (imageFlags & NVG_IMAGE_NEAREST) {
sceGxmTextureSetMinFilter(&tex->texture.tex, SCE_GXM_TEXTURE_FILTER_MIPMAP_POINT);
} else {
sceGxmTextureSetMinFilter(&tex->texture.tex, SCE_GXM_TEXTURE_FILTER_MIPMAP_LINEAR);
}
} else {
if (imageFlags & NVG_IMAGE_NEAREST) {
sceGxmTextureSetMinFilter(&tex->texture.tex, SCE_GXM_TEXTURE_FILTER_POINT);
} else {
sceGxmTextureSetMinFilter(&tex->texture.tex, SCE_GXM_TEXTURE_FILTER_LINEAR);
}
}
if (imageFlags & NVG_IMAGE_NEAREST)
sceGxmTextureSetMagFilter(&tex->texture.tex, SCE_GXM_TEXTURE_FILTER_POINT);
else
sceGxmTextureSetMagFilter(&tex->texture.tex, SCE_GXM_TEXTURE_FILTER_LINEAR);
if (imageFlags & NVG_IMAGE_REPEATX)
sceGxmTextureSetUAddrMode(&tex->texture.tex, SCE_GXM_TEXTURE_ADDR_REPEAT);
else
sceGxmTextureSetUAddrMode(&tex->texture.tex, SCE_GXM_TEXTURE_ADDR_CLAMP);
if (imageFlags & NVG_IMAGE_REPEATY)
sceGxmTextureSetVAddrMode(&tex->texture.tex, SCE_GXM_TEXTURE_ADDR_REPEAT);
else
sceGxmTextureSetVAddrMode(&tex->texture.tex, SCE_GXM_TEXTURE_ADDR_CLAMP);
tex->width = w;
tex->height = h;
tex->type = type;
tex->flags = imageFlags;
return tex->id;
}
static int gxmnvg__renderDeleteTexture(void *uptr, int image) {
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
return gxmnvg__deleteTexture(gxm, image);
}
static int gxmnvg__renderUpdateTexture(void *uptr, int image, int x, int y, int w, int h, const unsigned char *data) {
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
GXMNVGtexture *tex = gxmnvg__findTexture(gxm, image);
if (tex == NULL)
return 0;
if (tex->flags & NVG_IMAGE_DXT1 || tex->flags & NVG_IMAGE_DXT5) {
uint32_t tex_size = gxmnvg__nearestPow2(w) * gxmnvg__nearestPow2(h);
if (tex->flags & NVG_IMAGE_DXT1)
tex_size = tex_size >> 1;
memcpy(tex->texture.data, data, tex_size);
return 1;
}
int spp = tex->type == NVG_TEXTURE_RGBA ? 4 : 1;
uint32_t stride = ALIGN(tex->width, 8);
for (int i = 0; i < h; i++) {
uint32_t tex_start = ((i + y) * stride + x) * spp;
uint32_t data_start = ((i + y) * tex->width + x) * spp;
memcpy(tex->texture.data + tex_start, data + data_start, w * spp);
}
return 1;
}
static int gxmnvg__renderGetTextureSize(void *uptr, int image, int *w, int *h) {
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
GXMNVGtexture *tex = gxmnvg__findTexture(gxm, image);
if (tex == NULL)
return 0;
*w = tex->width;
*h = tex->height;
return 1;
}
static void gxmnvg__xformToMat3x4(float *m3, float *t) {
// transpose
m3[0] = t[0];
m3[1] = t[2];
m3[2] = t[4];
m3[3] = 0.0f;
m3[4] = t[1];
m3[5] = t[3];
m3[6] = t[5];
m3[7] = 0.0f;
m3[8] = 0.0f;
m3[9] = 0.0f;
m3[10] = 1.0f;
m3[11] = 0.0f;
}
static NVGcolor gxmnvg__premulColor(NVGcolor c) {
c.r *= c.a;
c.g *= c.a;
c.b *= c.a;
return c;
}
static int gxmnvg__convertPaint(GXMNVGcontext *gxm, GXMNVGfragUniforms *frag, NVGpaint *paint,
NVGscissor *scissor, float width, float fringe, float strokeThr) {
GXMNVGtexture *tex = NULL;
float invxform[6];
memset(frag, 0, sizeof(*frag));
frag->innerCol = gxmnvg__premulColor(paint->innerColor);
frag->outerCol = gxmnvg__premulColor(paint->outerColor);
if (scissor->extent[0] < -0.5f || scissor->extent[1] < -0.5f) {
memset(frag->scissorMat, 0, sizeof(frag->scissorMat));
frag->scissorExt[0] = 1.0f;
frag->scissorExt[1] = 1.0f;
frag->scissorScale[0] = 1.0f;
frag->scissorScale[1] = 1.0f;
} else {
nvgTransformInverse(invxform, scissor->xform);
gxmnvg__xformToMat3x4(frag->scissorMat, invxform);
frag->scissorExt[0] = scissor->extent[0];
frag->scissorExt[1] = scissor->extent[1];
frag->scissorScale[0] =
sqrtf(scissor->xform[0] * scissor->xform[0] + scissor->xform[2] * scissor->xform[2]) / fringe;
frag->scissorScale[1] =
sqrtf(scissor->xform[1] * scissor->xform[1] + scissor->xform[3] * scissor->xform[3]) / fringe;
}
memcpy(frag->extent, paint->extent, sizeof(frag->extent));
frag->strokeMult = (width * 0.5f + fringe * 0.5f) / fringe;
frag->strokeThr = strokeThr;
if (paint->image != 0) {
tex = gxmnvg__findTexture(gxm, paint->image);
if (tex == NULL)
return 0;
if ((tex->flags & NVG_IMAGE_FLIPY) != 0) {
float m1[6], m2[6];
nvgTransformTranslate(m1, 0.0f, frag->extent[1] * 0.5f);
nvgTransformMultiply(m1, paint->xform);
nvgTransformScale(m2, 1.0f, -1.0f);
nvgTransformMultiply(m2, m1);
nvgTransformTranslate(m1, 0.0f, -frag->extent[1] * 0.5f);
nvgTransformMultiply(m1, m2);
nvgTransformInverse(invxform, m1);
} else {
nvgTransformInverse(invxform, paint->xform);
}
frag->type = NSVG_SHADER_FILLIMG;
if (tex->type == NVG_TEXTURE_RGBA)
frag->texType = (tex->flags & NVG_IMAGE_PREMULTIPLIED) ? 0.0f : 1.0f;
else
frag->texType = 2.0f;
} else {
frag->type = NSVG_SHADER_FILLGRAD;
// if innerColor == outerColor, then solid fill
if (!memcmp(&paint->innerColor, &paint->outerColor, sizeof(NVGcolor))) {
frag->type = NSVG_SHADER_FILLCOLOR;
}
frag->radius = paint->radius;
frag->feather = paint->feather;
nvgTransformInverse(invxform, paint->xform);
}
gxmnvg__xformToMat3x4(frag->paintMat, invxform);
return 1;
}
static GXMNVGfragUniforms *nvg__fragUniformPtr(GXMNVGcontext *gxm, int i);
static void gxmnvg__setUniforms(GXMNVGcontext *gxm, int uniformOffset, int image) {
int need_tex = 0;
GXMNVGtexture *tex = NULL;
GXMNVGfragUniforms *frag = nvg__fragUniformPtr(gxm, uniformOffset);
SceGxmFragmentProgram *frag_prog;
const SceGxmProgramParameter *frag_loc;
switch((int)frag->type) {
case NSVG_SHADER_FILLIMG:
frag_prog = gxm->img_texture_shader.prog.frag;
frag_loc = gxm->img_texture_shader.loc[GXMNVG_LOC_FRAG];
need_tex = 1;
break;
case NSVG_SHADER_IMG:
frag_prog = gxm->text_texture_shader.prog.frag;
frag_loc = gxm->text_texture_shader.loc[GXMNVG_LOC_FRAG];
need_tex = 1;
break;
case NSVG_SHADER_FILLGRAD:
frag_prog = gxm->gradient_shader.prog.frag;
frag_loc = gxm->gradient_shader.loc[GXMNVG_LOC_FRAG];
break;
default:
frag_prog = gxm->shader.prog.frag;
frag_loc = gxm->shader.loc[GXMNVG_LOC_FRAG];
break;
}
gxmnvg__setFragmentProgram(gxm, frag_prog);
void *buffer;
sceGxmReserveFragmentDefaultUniformBuffer(gxm->context, &buffer);
sceGxmSetUniformDataF(buffer, frag_loc, 0, sizeof(float) * NANOVG_GXM_UNIFORMARRAY_SIZE,
(const float *) frag->uniformArray);
if (!need_tex)
return;
if (image != 0) {
tex = gxmnvg__findTexture(gxm, image);
}
// If no image is set, use empty texture
if (tex == NULL) {
tex = gxmnvg__findTexture(gxm, gxm->dummyTex);
}
if (tex != NULL) {
GXM_CHECK_VOID(sceGxmSetFragmentTexture(gxm->context, 0, &tex->texture.tex));
}
}
static void gxmnvg__renderViewport(void *uptr, float width, float height, float devicePixelRatio) {
NVG_NOTUSED(devicePixelRatio);
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
gxm->view[0] = width;
gxm->view[1] = height;
}
static void gxmnvg__fill(GXMNVGcontext *gxm, GXMNVGcall *call) {
GXMNVGpath *paths = &gxm->paths[call->pathOffset];
int i, npaths = call->pathCount;
// Draw shapes
{
// Disable color output
gxmnvg__setFragmentProgram(gxm, gxm->depth_shader.prog.frag);
sceGxmSetTwoSidedEnable(gxm->context, SCE_GXM_TWO_SIDED_ENABLED);
sceGxmSetCullMode(gxm->context, SCE_GXM_CULL_NONE);
sceGxmSetFrontStencilFunc(gxm->context,
SCE_GXM_STENCIL_FUNC_ALWAYS,
SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_INCR_WRAP,
0xff, 0xff);
sceGxmSetBackStencilFunc(gxm->context,
SCE_GXM_STENCIL_FUNC_ALWAYS,
SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_DECR_WRAP,
0xff, 0xff);
for (i = 0; i < npaths; i++)
gxmDrawArrays(gxm, SCE_GXM_PRIMITIVE_TRIANGLE_FAN, paths[i].fillOffset, paths[i].fillCount);
sceGxmSetCullMode(gxm->context, SCE_GXM_CULL_CW);
sceGxmSetTwoSidedEnable(gxm->context, SCE_GXM_TWO_SIDED_DISABLED);
}
// Draw anti-aliased pixels
gxmnvg__setUniforms(gxm, call->uniformOffset, call->image);
if (gxm->flags & NVG_ANTIALIAS) {
gxmnvg__stencilFunc(gxm, SCE_GXM_STENCIL_FUNC_EQUAL,
SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP);
// Draw fringes
for (i = 0; i < npaths; i++)
gxmDrawArrays(gxm, SCE_GXM_PRIMITIVE_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
}
// Draw fill
gxmnvg__stencilFunc(gxm, SCE_GXM_STENCIL_FUNC_NOT_EQUAL,
SCE_GXM_STENCIL_OP_ZERO, SCE_GXM_STENCIL_OP_ZERO, SCE_GXM_STENCIL_OP_ZERO);
gxmDrawArrays(gxm, SCE_GXM_PRIMITIVE_TRIANGLE_STRIP, call->triangleOffset, call->triangleCount);
gxmnvg__disableStencilTest(gxm);
}
static void gxmnvg__convexFill(GXMNVGcontext *gxm, GXMNVGcall *call) {
GXMNVGpath *paths = &gxm->paths[call->pathOffset];
int i, npaths = call->pathCount;
gxmnvg__setUniforms(gxm, call->uniformOffset, call->image);
for (i = 0; i < npaths; i++) {
gxmDrawArrays(gxm, SCE_GXM_PRIMITIVE_TRIANGLE_FAN, paths[i].fillOffset, paths[i].fillCount);
// Draw fringes
if (paths[i].strokeCount > 0) {
gxmDrawArrays(gxm, SCE_GXM_PRIMITIVE_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
}
}
}
static void gxmnvg__stroke(GXMNVGcontext *gxm, GXMNVGcall *call) {
GXMNVGpath *paths = &gxm->paths[call->pathOffset];
int npaths = call->pathCount, i;
if (gxm->flags & NVG_STENCIL_STROKES) {
gxmnvg__stencilFunc(gxm, SCE_GXM_STENCIL_FUNC_EQUAL,
SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_INCR);
gxmnvg__setUniforms(gxm, call->uniformOffset + gxm->fragSize, call->image);
for (i = 0; i < npaths; i++)
gxmDrawArrays(gxm, SCE_GXM_PRIMITIVE_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
// Draw anti-aliased pixels.
gxmnvg__setUniforms(gxm, call->uniformOffset, call->image);
sceGxmSetFrontStencilFunc(gxm->context,
SCE_GXM_STENCIL_FUNC_EQUAL,
SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP,
0xff, 0xff);
sceGxmSetBackStencilFunc(gxm->context,
SCE_GXM_STENCIL_FUNC_EQUAL,
SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP, SCE_GXM_STENCIL_OP_KEEP,
0xff, 0xff);
for (i = 0; i < npaths; i++)
gxmDrawArrays(gxm, SCE_GXM_PRIMITIVE_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
// Clear stencil buffer.
{
gxmnvg__stencilFunc(gxm, SCE_GXM_STENCIL_FUNC_ALWAYS,
SCE_GXM_STENCIL_OP_ZERO, SCE_GXM_STENCIL_OP_ZERO, SCE_GXM_STENCIL_OP_ZERO);
// Disable color output
gxmnvg__setFragmentProgram(gxm, gxm->depth_shader.prog.frag);
for (i = 0; i < npaths; i++)
gxmDrawArrays(gxm, SCE_GXM_PRIMITIVE_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
gxmnvg__disableStencilTest(gxm);
}
// gxmnvg__convertPaint(gxm, nvg__fragUniformPtr(gxm, call->uniformOffset + gl->fragSize), paint, scissor, strokeWidth, fringe, 1.0f - 0.5f/255.0f);
} else {
gxmnvg__setUniforms(gxm, call->uniformOffset, call->image);
// Draw Strokes
for (i = 0; i < npaths; i++) {
gxmDrawArrays(gxm, SCE_GXM_PRIMITIVE_TRIANGLE_STRIP, paths[i].strokeOffset, paths[i].strokeCount);
}
}
}
static void gxmnvg__triangles(GXMNVGcontext *gxm, GXMNVGcall *call) {
gxmnvg__setUniforms(gxm, call->uniformOffset, call->image);
gxmDrawArrays(gxm, SCE_GXM_PRIMITIVE_TRIANGLES, call->triangleOffset, call->triangleCount);
}
static void gxmnvg__renderCancel(void *uptr) {
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
gxm->nverts = 0;
gxm->npaths = 0;
gxm->ncalls = 0;
gxm->nuniforms = 0;
}
static SceGxmBlendFactor gxmnvg_convertBlendFuncFactor(int factor) {
switch (factor) {
case NVG_ZERO:
return SCE_GXM_BLEND_FACTOR_ZERO;
case NVG_ONE:
return SCE_GXM_BLEND_FACTOR_ONE;
case NVG_SRC_COLOR:
return SCE_GXM_BLEND_FACTOR_SRC_COLOR;
case NVG_ONE_MINUS_SRC_COLOR:
return SCE_GXM_BLEND_FACTOR_ONE_MINUS_SRC_COLOR;
case NVG_DST_COLOR:
return SCE_GXM_BLEND_FACTOR_DST_COLOR;
case NVG_ONE_MINUS_DST_COLOR:
return SCE_GXM_BLEND_FACTOR_ONE_MINUS_DST_COLOR;
case NVG_SRC_ALPHA:
return SCE_GXM_BLEND_FACTOR_SRC_ALPHA;
case NVG_ONE_MINUS_SRC_ALPHA:
return SCE_GXM_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
case NVG_DST_ALPHA:
return SCE_GXM_BLEND_FACTOR_DST_ALPHA;
case NVG_ONE_MINUS_DST_ALPHA:
return SCE_GXM_BLEND_FACTOR_ONE_MINUS_DST_ALPHA;
case NVG_SRC_ALPHA_SATURATE:
return SCE_GXM_BLEND_FACTOR_SRC_ALPHA_SATURATE;
}
// act like invalid
return SCE_GXM_BLEND_FACTOR_DST_ALPHA_SATURATE;
}
static GXMNVGblend gxmnvg__blendCompositeOperation(NVGcompositeOperationState op) {
GXMNVGblend blend;
blend.srcRGB = gxmnvg_convertBlendFuncFactor(op.srcRGB);
blend.dstRGB = gxmnvg_convertBlendFuncFactor(op.dstRGB);
blend.srcAlpha = gxmnvg_convertBlendFuncFactor(op.srcAlpha);
blend.dstAlpha = gxmnvg_convertBlendFuncFactor(op.dstAlpha);
// act like invalid
if (blend.srcRGB == SCE_GXM_BLEND_FACTOR_DST_ALPHA_SATURATE ||
blend.dstRGB == SCE_GXM_BLEND_FACTOR_DST_ALPHA_SATURATE ||
blend.srcAlpha == SCE_GXM_BLEND_FACTOR_DST_ALPHA_SATURATE ||
blend.dstAlpha == SCE_GXM_BLEND_FACTOR_DST_ALPHA_SATURATE) {
blend.srcRGB = SCE_GXM_BLEND_FACTOR_ONE;
blend.dstRGB = SCE_GXM_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
blend.srcAlpha = SCE_GXM_BLEND_FACTOR_ONE;
blend.dstAlpha = SCE_GXM_BLEND_FACTOR_ONE_MINUS_DST_ALPHA;
}
return blend;
}
static void gxmnvg__renderFlush(void *uptr) {
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
int i;
if (gxm->ncalls > 0) {
// Setup require GXM state.
sceGxmSetVertexProgram(gxm->context, gxm->shader.prog.vert);
// Reset fragment program to ensure it will be set at least once per frame.
gxm->boundFragmentProgram = NULL;
sceGxmSetCullMode(gxm->context, SCE_GXM_CULL_CW);
sceGxmSetTwoSidedEnable(gxm->context, SCE_GXM_TWO_SIDED_DISABLED);
sceGxmSetFrontStencilRef(gxm->context, 0);
sceGxmSetBackStencilRef(gxm->context, 0);
gxmnvg__disableStencilTest(gxm);
// Set view just once per frame.
{
void *uniform_buffer;
sceGxmReserveVertexDefaultUniformBuffer(gxm->context, &uniform_buffer);
sceGxmSetUniformDataF(uniform_buffer, gxm->shader.loc[GXMNVG_LOC_VIEWSIZE], 0, 2, gxm->view);
}
for (i = 0; i < gxm->ncalls; i++) {
GXMNVGcall *call = &gxm->calls[i];
// gxmnvg__blendFuncSeparate(gxm, &call->blendFunc);
if (call->type == GXMNVG_FILL)
gxmnvg__fill(gxm, call);
else if (call->type == GXMNVG_CONVEXFILL)
gxmnvg__convexFill(gxm, call);
else if (call->type == GXMNVG_STROKE)
gxmnvg__stroke(gxm, call);
else if (call->type == GXMNVG_TRIANGLES)
gxmnvg__triangles(gxm, call);
}
}
// Reset calls
gxm->nverts = 0;
gxm->npaths = 0;
gxm->ncalls = 0;
gxm->nuniforms = 0;
// texture gc
gxmnvg__garbageCollector(gxm);
}
static int gxmnvg__maxVertCount(const NVGpath *paths, int npaths) {
int i, count = 0;
for (i = 0; i < npaths; i++) {
count += paths[i].nfill;
count += paths[i].nstroke;
}
return count;
}
static GXMNVGcall *gxmnvg__allocCall(GXMNVGcontext *gxm) {
GXMNVGcall *ret = NULL;
if (gxm->ncalls + 1 > gxm->ccalls) {
GXMNVGcall *calls;
int ccalls = gxmnvg__maxi(gxm->ncalls + 1, 128) + gxm->ccalls / 2; // 1.5x Overallocate
calls = (GXMNVGcall *) realloc(gxm->calls, sizeof(GXMNVGcall) * ccalls);
if (calls == NULL)
return NULL;
gxm->calls = calls;
gxm->ccalls = ccalls;
}
ret = &gxm->calls[gxm->ncalls++];
memset(ret, 0, sizeof(GXMNVGcall));
return ret;
}
static int gxmnvg__allocPaths(GXMNVGcontext *gxm, int n) {
int ret = 0;
if (gxm->npaths + n > gxm->cpaths) {
GXMNVGpath *paths;
int cpaths = gxmnvg__maxi(gxm->npaths + n, 128) + gxm->cpaths / 2; // 1.5x Overallocate
paths = (GXMNVGpath *) realloc(gxm->paths, sizeof(GXMNVGpath) * cpaths);
if (paths == NULL)
return -1;
gxm->paths = paths;
gxm->cpaths = cpaths;
}
ret = gxm->npaths;
gxm->npaths += n;
return ret;
}
static int gxmnvg__allocVerts(GXMNVGcontext *gxm, int n) {
int ret = 0;
if (gxm->nverts + n > gxm->cverts) {
NVGvertex *verts;
int cverts = gxmnvg__maxi(gxm->nverts + n, 4096) + gxm->cverts / 2; // 1.5x Overallocate
verts = (NVGvertex *) realloc(gxm->verts, sizeof(NVGvertex) * cverts);
if (verts == NULL)
return -1;
gxm->verts = verts;
gxm->cverts = cverts;
}
ret = gxm->nverts;
gxm->nverts += n;
return ret;
}
static int gxmnvg__allocFragUniforms(GXMNVGcontext *gxm, int n) {
int ret = 0, structSize = gxm->fragSize;
if (gxm->nuniforms + n > gxm->cuniforms) {
unsigned char *uniforms;
int cuniforms = gxmnvg__maxi(gxm->nuniforms + n, 128) + gxm->cuniforms / 2; // 1.5x Overallocate
uniforms = (unsigned char *) realloc(gxm->uniforms, structSize * cuniforms);
if (uniforms == NULL)
return -1;
gxm->uniforms = uniforms;
gxm->cuniforms = cuniforms;
}
ret = gxm->nuniforms * structSize;
gxm->nuniforms += n;
return ret;
}
static GXMNVGfragUniforms *nvg__fragUniformPtr(GXMNVGcontext *gxm, int i) {
return (GXMNVGfragUniforms *) &gxm->uniforms[i];
}
static void gxmnvg__vset(NVGvertex *vtx, float x, float y, float u, float v) {
vtx->x = x;
vtx->y = y;
vtx->u = u;
vtx->v = v;
}
static void gxmnvg__renderFill(void *uptr, NVGpaint *paint,
NVGcompositeOperationState compositeOperation, NVGscissor *scissor,
float fringe, const float *bounds, const NVGpath *paths, int npaths) {
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
GXMNVGcall *call = gxmnvg__allocCall(gxm);
NVGvertex *quad;
int i, maxverts, offset, valid = 0;
if (call == NULL || npaths == 0)
return;
call->type = GXMNVG_FILL;
call->triangleCount = 4;
call->pathOffset = gxmnvg__allocPaths(gxm, npaths);
if (call->pathOffset == -1)
goto error;
call->pathCount = npaths;
call->image = paint->image;
call->blendFunc = gxmnvg__blendCompositeOperation(compositeOperation);
if (npaths == 1 && paths[0].convex) {
call->type = GXMNVG_CONVEXFILL;
call->triangleCount = 0; // Bounding box fill quad not needed for convex fill
}
// Allocate vertices for all the paths.
maxverts = gxmnvg__maxVertCount(paths, npaths) + call->triangleCount;
offset = gxmnvg__allocVerts(gxm, maxverts);
if (offset == -1)
goto error;
for (i = 0; i < npaths; i++) {
GXMNVGpath *copy = &gxm->paths[call->pathOffset + i];
const NVGpath *path = &paths[i];
memset(copy, 0, sizeof(GXMNVGpath));
if (path->nfill > 2) {
copy->fillOffset = offset;
copy->fillCount = path->nfill;
memcpy(&gxm->verts[offset], path->fill, sizeof(NVGvertex) * path->nfill);
offset += path->nfill;
valid = 1;
}
if (path->nstroke > 2) {
copy->strokeOffset = offset;
copy->strokeCount = path->nstroke;
memcpy(&gxm->verts[offset], path->stroke, sizeof(NVGvertex) * path->nstroke);
offset += path->nstroke;
valid = 1;
}
}
if (valid == 0)
goto error;
// Setup uniforms for draw calls
if (call->type == GXMNVG_FILL) {
// Quad
call->triangleOffset = offset;
quad = &gxm->verts[call->triangleOffset];
gxmnvg__vset(&quad[0], bounds[2], bounds[3], 0.5f, 1.0f);
gxmnvg__vset(&quad[1], bounds[2], bounds[1], 0.5f, 1.0f);
gxmnvg__vset(&quad[2], bounds[0], bounds[3], 0.5f, 1.0f);
gxmnvg__vset(&quad[3], bounds[0], bounds[1], 0.5f, 1.0f);
call->uniformOffset = gxmnvg__allocFragUniforms(gxm, 2);
if (call->uniformOffset == -1)
goto error;
// Fill shader
gxmnvg__convertPaint(gxm, nvg__fragUniformPtr(gxm, call->uniformOffset), paint, scissor, fringe,
fringe, -1.0f);
} else {
call->uniformOffset = gxmnvg__allocFragUniforms(gxm, 1);
if (call->uniformOffset == -1)
goto error;
// Fill shader
gxmnvg__convertPaint(gxm, nvg__fragUniformPtr(gxm, call->uniformOffset), paint, scissor, fringe, fringe, -1.0f);
}
return;
error:
// We get here if call alloc was ok, but something else is not.
// Roll back the last call to prevent drawing it.
if (gxm->ncalls > 0)
gxm->ncalls--;
}
static void gxmnvg__renderStroke(void *uptr, NVGpaint *paint,
NVGcompositeOperationState compositeOperation, NVGscissor *scissor,
float fringe, float strokeWidth, const NVGpath *paths, int npaths) {
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
GXMNVGcall *call = gxmnvg__allocCall(gxm);
int i, maxverts, offset, valid = 0;
if (call == NULL || npaths == 0)
return;
call->type = GXMNVG_STROKE;
call->pathOffset = gxmnvg__allocPaths(gxm, npaths);
if (call->pathOffset == -1)
goto error;
call->pathCount = npaths;
call->image = paint->image;
call->blendFunc = gxmnvg__blendCompositeOperation(compositeOperation);
// Allocate vertices for all the paths.
maxverts = gxmnvg__maxVertCount(paths, npaths);
offset = gxmnvg__allocVerts(gxm, maxverts);
if (offset == -1)
goto error;
for (i = 0; i < npaths; i++) {
GXMNVGpath *copy = &gxm->paths[call->pathOffset + i];
const NVGpath *path = &paths[i];
memset(copy, 0, sizeof(GXMNVGpath));
if (path->nstroke > 2) {
copy->strokeOffset = offset;
copy->strokeCount = path->nstroke;
memcpy(&gxm->verts[offset], path->stroke, sizeof(NVGvertex) * path->nstroke);
offset += path->nstroke;
valid = 1;
}
}
if (valid == 0)
goto error;
if (gxm->flags & NVG_STENCIL_STROKES) {
// Fill shader
call->uniformOffset = gxmnvg__allocFragUniforms(gxm, 2);
if (call->uniformOffset == -1)
goto error;
gxmnvg__convertPaint(gxm, nvg__fragUniformPtr(gxm, call->uniformOffset), paint, scissor, strokeWidth, fringe,
-1.0f);
gxmnvg__convertPaint(gxm, nvg__fragUniformPtr(gxm, call->uniformOffset + gxm->fragSize), paint, scissor,
strokeWidth, fringe, 1.0f - 0.5f / 255.0f);
} else {
// Fill shader
call->uniformOffset = gxmnvg__allocFragUniforms(gxm, 1);
if (call->uniformOffset == -1)
goto error;
gxmnvg__convertPaint(gxm, nvg__fragUniformPtr(gxm, call->uniformOffset), paint, scissor, strokeWidth, fringe,
-1.0f);
}
return;
error:
// We get here if call alloc was ok, but something else is not.
// Roll back the last call to prevent drawing it.
if (gxm->ncalls > 0)
gxm->ncalls--;
}
static void gxmnvg__renderTriangles(void *uptr, NVGpaint *paint,
NVGcompositeOperationState compositeOperation, NVGscissor *scissor,
const NVGvertex *verts, int nverts, float fringe) {
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
GXMNVGcall *call = gxmnvg__allocCall(gxm);
GXMNVGfragUniforms *frag;
if (call == NULL || nverts == 0)
return;
call->type = GXMNVG_TRIANGLES;
call->image = paint->image;
call->blendFunc = gxmnvg__blendCompositeOperation(compositeOperation);
// Allocate vertices for all the paths.
call->triangleOffset = gxmnvg__allocVerts(gxm, nverts);
if (call->triangleOffset == -1)
goto error;
call->triangleCount = nverts;
memcpy(&gxm->verts[call->triangleOffset], verts, sizeof(NVGvertex) * nverts);
// Fill shader
call->uniformOffset = gxmnvg__allocFragUniforms(gxm, 1);
if (call->uniformOffset == -1)
goto error;
frag = nvg__fragUniformPtr(gxm, call->uniformOffset);
gxmnvg__convertPaint(gxm, frag, paint, scissor, 1.0f, fringe, -1.0f);
frag->type = NSVG_SHADER_IMG;
return;
error:
// We get here if call alloc was ok, but something else is not.
// Roll back the last call to prevent drawing it.
if (gxm->ncalls > 0)
gxm->ncalls--;
}
static void gxmnvg__renderDelete(void *uptr) {
GXMNVGcontext *gxm = (GXMNVGcontext *) uptr;
int i;
if (gxm == NULL)
return;
// Ensure the GPU is not using memory
sceGxmFinish(gxm->context);
sceGxmDisplayQueueFinish();
gpu_unmap_free(gxm->verticesUid); // vertex stream
for (i = 0; i < gxm->ntextures; i++) {
if (gxm->textures[i].texture.uid != 0 && (gxm->textures[i].flags & NVG_IMAGE_NODELETE) == 0)
gpu_unmap_free(gxm->textures[i].texture.uid);
}
gxmnvg__deleteShader(&gxm->shader);
gxmnvg__deleteShader(&gxm->gradient_shader);
gxmnvg__deleteShader(&gxm->img_texture_shader);
gxmnvg__deleteShader(&gxm->text_texture_shader);
gxmnvg__deleteShader(&gxm->depth_shader);
free(gxm->textures);
free(gxm->paths);
free(gxm->verts);
free(gxm->uniforms);
free(gxm->calls);
free(gxm);
}
NVGcontext *nvgCreateGXM(SceGxmContext *context, SceGxmShaderPatcher *shader_patcher, int flags) {
NVGparams params;
NVGcontext *ctx = NULL;
GXMNVGcontext *gxm = (GXMNVGcontext *) malloc(sizeof(GXMNVGcontext));
if (gxm == NULL)
goto error;
memset(gxm, 0, sizeof(GXMNVGcontext));
gxm->context = context;
gxm->shader_patcher = shader_patcher;
memset(¶ms, 0, sizeof(params));
params.renderCreate = gxmnvg__renderCreate;
params.renderCreateTexture = gxmnvg__renderCreateTexture;
params.renderDeleteTexture = gxmnvg__renderDeleteTexture;
params.renderUpdateTexture = gxmnvg__renderUpdateTexture;
params.renderGetTextureSize = gxmnvg__renderGetTextureSize;
params.renderViewport = gxmnvg__renderViewport;
params.renderCancel = gxmnvg__renderCancel;
params.renderFlush = gxmnvg__renderFlush;
params.renderFill = gxmnvg__renderFill;
params.renderStroke = gxmnvg__renderStroke;
params.renderTriangles = gxmnvg__renderTriangles;
params.renderDelete = gxmnvg__renderDelete;
params.userPtr = gxm;
params.edgeAntiAlias = flags & NVG_ANTIALIAS ? 1 : 0;
gxm->flags = flags;
#ifdef USE_VITA_SHARK
if (flags & NVG_DEBUG) {
shark_set_warnings_level(SHARK_WARN_MAX);
shark_install_log_cb(shark_log_cb);
}
#endif
ctx = nvgCreateInternal(¶ms);
if (ctx == NULL)
goto error;
return ctx;
error:
// 'gxm' is freed by nvgDeleteInternal.
if (ctx != NULL)
nvgDeleteInternal(ctx);
return NULL;
}
void nvgDeleteGXM(NVGcontext *ctx) {
nvgDeleteInternal(ctx);
}
int nvgxmCreateImageFromHandle(NVGcontext *ctx, SceGxmTexture *texture) {
GXMNVGcontext *gxm = (GXMNVGcontext *) nvgInternalParams(ctx)->userPtr;
GXMNVGtexture *tex = gxmnvg__allocTexture(gxm);
if (tex == NULL) return 0;
tex->type = NVG_TEXTURE_RGBA;
tex->texture.tex = *texture;
tex->texture.uid = 0;
tex->texture.data = (uint8_t *) sceGxmTextureGetData(texture);
tex->flags = NVG_IMAGE_NODELETE;
tex->width = (int) sceGxmTextureGetWidth(texture);
tex->height = (int) sceGxmTextureGetHeight(texture);
return tex->id;
}
NVGXMtexture *nvgxmImageHandle(NVGcontext *ctx, int image) {
GXMNVGcontext *gxm = (GXMNVGcontext *) nvgInternalParams(ctx)->userPtr;
GXMNVGtexture *tex = gxmnvg__findTexture(gxm, image);
return &tex->texture;
}
#endif /* NANOVG_GL_IMPLEMENTATION */
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
src/nanovg_gxm_utils.h | C/C++ Header | //
// Copyright (c) 2024 xfangfang xfangfang@126.com
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
#ifndef NANOVG_GXM_UTILS_H
#define NANOVG_GXM_UTILS_H
#ifdef __cplusplus
extern "C"
{
#endif
#include <psp2/gxm.h>
#include <psp2/kernel/sysmem.h>
#ifdef USE_VITA_SHARK
#include <vitashark.h>
#include <stdio.h>
#endif
#define ALIGN(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
// Default framebuffer settings
#define DISPLAY_WIDTH 960
#define DISPLAY_HEIGHT 544
#define DISPLAY_STRIDE 960
#define DISPLAY_BUFFER_COUNT 3
#define MAX_PENDING_SWAPS (DISPLAY_BUFFER_COUNT - 1)
#define DISPLAY_COLOR_FORMAT SCE_GXM_COLOR_FORMAT_A8B8G8R8
#define DISPLAY_COLOR_SURFACE_TYPE SCE_GXM_COLOR_SURFACE_LINEAR
#define DISPLAY_PIXEL_FORMAT SCE_DISPLAY_PIXELFORMAT_A8B8G8R8
#define GXM_PRINT_ERROR(status) sceClibPrintf("[line %d] failed with reason: %s\n", __LINE__, gxmnvg__easy_strerror(status))
#define GXM_CHECK_RETURN(func, ret) \
{ \
int status = func; \
if (status != SCE_OK) \
{ \
GXM_PRINT_ERROR(status); \
return ret; \
} \
}
#define GXM_CHECK(func) GXM_CHECK_RETURN(func, 0)
#define GXM_CHECK_VOID(func) GXM_CHECK_RETURN(func, )
struct NVGXMinitOptions {
SceGxmMultisampleMode msaa;
int swapInterval;
int dumpShader; // dump shader to ux0:data/nvg_name_type.c
int scenesPerFrame;
};
typedef struct NVGXMinitOptions NVGXMinitOptions;
struct NVGXMshaderProgram {
SceGxmShaderPatcherId vert_id;
SceGxmShaderPatcherId frag_id;
SceGxmVertexProgram *vert;
SceGxmFragmentProgram *frag;
SceGxmProgram *vert_gxp;
SceGxmProgram *frag_gxp;
};
typedef struct NVGXMshaderProgram NVGXMshaderProgram;
struct NVGXMtexture {
SceGxmTexture tex;
uint8_t *data;
SceUID uid;
};
typedef struct NVGXMtexture NVGXMtexture;
struct NVGXMframebufferInitOptions {
int display_buffer_count;
int scenesPerFrame;
/**
* render_target is the framebuffer to render to.
* NULL for default framebuffer
*/
NVGXMtexture *render_target;
SceGxmColorFormat color_format;
SceGxmColorSurfaceType color_surface_type;
int display_width;
int display_height;
int display_stride;
};
typedef struct NVGXMframebufferInitOptions NVGXMframebufferInitOptions;
struct NVGXMcolorSurface {
SceGxmColorSurface surface;
SceUID surface_uid;
void *surface_addr;
SceGxmSyncObject *sync_object;
};
typedef struct NVGXMcolorSurface NVGXMcolorSurface;
struct NVGXMframebuffer {
SceGxmRenderTarget *gxm_render_target;
NVGXMcolorSurface *gxm_color_surfaces;
unsigned int gxm_front_buffer_index;
unsigned int gxm_back_buffer_index;
SceUID gxm_depth_stencil_surface_uid;
void *gxm_depth_stencil_surface_addr;
SceGxmDepthStencilSurface gxm_depth_stencil_surface;
NVGXMframebufferInitOptions initOptions;
};
typedef struct NVGXMframebuffer NVGXMframebuffer;
struct NVGXMwindow {
SceGxmContext *context;
SceGxmShaderPatcher *shader_patcher;
SceGxmMultisampleMode msaa;
SceUID vdm_ring_buffer_uid;
void *vdm_ring_buffer_addr;
SceUID vertex_ring_buffer_uid;
void *vertex_ring_buffer_addr;
SceUID fragment_ring_buffer_uid;
void *fragment_ring_buffer_addr;
SceUID fragment_usse_ring_buffer_uid;
void *fragment_usse_ring_buffer_addr;
SceUID gxm_shader_patcher_buffer_uid;
void *gxm_shader_patcher_buffer_addr;
SceUID gxm_shader_patcher_vertex_usse_uid;
void *gxm_shader_patcher_vertex_usse_addr;
SceUID gxm_shader_patcher_fragment_usse_uid;
void *gxm_shader_patcher_fragment_usse_addr;
NVGXMframebuffer *fb;
};
typedef struct NVGXMwindow NVGXMwindow;
/**
* Helper functions to create shader program.
*/
int gxmCreateFragmentProgram(SceGxmShaderPatcherId programId,
SceGxmOutputRegisterFormat outputFormat,
const SceGxmBlendInfo *blendInfo,
const SceGxmProgram *vertexProgram,
SceGxmFragmentProgram **fragmentProgram);
int gxmCreateVertexProgram(SceGxmShaderPatcherId programId,
const SceGxmVertexAttribute *attributes,
unsigned int attributeCount,
const SceGxmVertexStream *streams,
unsigned int streamCount,
SceGxmVertexProgram **vertexProgram);
NVGXMwindow *gxmCreateWindow(const NVGXMinitOptions *opts);
NVGXMwindow *gxmGetWindow(void);
void gxmDeleteWindow(NVGXMwindow *window);
NVGXMframebuffer *gxmCreateFramebuffer(const NVGXMframebufferInitOptions *opts);
void gxmDeleteFramebuffer(NVGXMframebuffer *fb);
NVGXMtexture *gxmCreateTexture(int width, int height, SceGxmTextureFormat format, void *data);
void gxmDeleteTexture(NVGXMtexture *texture);
/**
* @brief Begin a scene.
*/
void gxmBeginFrame(void);
void gxmBeginFrameEx(NVGXMframebuffer *fb, unsigned int flags);
/**
* @brief End a scene.
*/
void gxmEndFrame(void);
/**
* @brief Swap the buffers.
*/
void gxmSwapBuffer(void);
/**
* @brief Set the clear color.
*/
void gxmClearColor(float r, float g, float b, float a);
/**
* @brief Clear the framebuffer and stencil buffer.
* Must be called between gxmBeginFrame and gxmEndFrame.
*/
void gxmClear(void);
/**
* @brief Set the scissor rectangle.
*/
void gxmScissor(int x, int y, int w, int h);
/**
* @brief Get framebuffer data.
*/
void *gxmReadPixels(void);
/**
* @brief Set the swap interval.
* @param interval N for vsync, 0 for immediate.
*/
void gxmSwapInterval(int interval);
int gxmDialogUpdate(void);
unsigned short *gxmGetSharedIndices(void);
int gxmCreateShader(NVGXMshaderProgram *shader, const char *name, const char *vshader, const char *fshader);
void gxmDeleteShader(NVGXMshaderProgram *prog);
void gpu_unmap_free(SceUID uid);
void *gpu_alloc_map(SceKernelMemBlockType type, SceGxmMemoryAttribFlags gpu_attrib, size_t size, SceUID *uid);
#ifdef __cplusplus
}
#endif
#endif // NANOVG_GXM_UTILS_H
#ifdef NANOVG_GXM_UTILS_IMPLEMENTATION
#include <psp2/display.h>
#include <psp2/kernel/clib.h>
#include <psp2/common_dialog.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
struct display_queue_callback_data {
void *addr;
};
struct clear_vertex {
float x, y;
};
static struct gxm_internal {
SceGxmContext *context;
SceGxmShaderPatcher *shader_patcher;
NVGXMinitOptions initOptions;
// clear shader
NVGXMshaderProgram clearProg;
NVGcolor clearColor;
const SceGxmProgramParameter *clearParam;
SceUID clearVerticesUid;
struct clear_vertex *clearVertices;
// shared indices
SceUID linearIndicesUid;
unsigned short *linearIndices;
NVGXMwindow *window;
} gxm_internal;
static const char *gxmnvg__easy_strerror(int code) {
switch ((SceGxmErrorCode) code) {
case SCE_GXM_ERROR_UNINITIALIZED:
return "SCE_GXM_ERROR_UNINITIALIZED";
case SCE_GXM_ERROR_ALREADY_INITIALIZED:
return "SCE_GXM_ERROR_ALREADY_INITIALIZED";
case SCE_GXM_ERROR_OUT_OF_MEMORY:
return "SCE_GXM_ERROR_OUT_OF_MEMORY";
case SCE_GXM_ERROR_INVALID_VALUE:
return "SCE_GXM_ERROR_INVALID_VALUE";
case SCE_GXM_ERROR_INVALID_POINTER:
return "SCE_GXM_ERROR_INVALID_POINTER";
case SCE_GXM_ERROR_INVALID_ALIGNMENT:
return "SCE_GXM_ERROR_INVALID_ALIGNMENT";
case SCE_GXM_ERROR_NOT_WITHIN_SCENE:
return "SCE_GXM_ERROR_NOT_WITHIN_SCENE";
case SCE_GXM_ERROR_WITHIN_SCENE:
return "SCE_GXM_ERROR_WITHIN_SCENE";
case SCE_GXM_ERROR_NULL_PROGRAM:
return "SCE_GXM_ERROR_NULL_PROGRAM";
case SCE_GXM_ERROR_UNSUPPORTED:
return "SCE_GXM_ERROR_UNSUPPORTED";
case SCE_GXM_ERROR_PATCHER_INTERNAL:
return "SCE_GXM_ERROR_PATCHER_INTERNAL";
case SCE_GXM_ERROR_RESERVE_FAILED:
return "SCE_GXM_ERROR_RESERVE_FAILED";
case SCE_GXM_ERROR_PROGRAM_IN_USE:
return "SCE_GXM_ERROR_PROGRAM_IN_USE";
case SCE_GXM_ERROR_INVALID_INDEX_COUNT:
return "SCE_GXM_ERROR_INVALID_INDEX_COUNT";
case SCE_GXM_ERROR_INVALID_POLYGON_MODE:
return "SCE_GXM_ERROR_INVALID_POLYGON_MODE";
case SCE_GXM_ERROR_INVALID_SAMPLER_RESULT_TYPE_PRECISION:
return "SCE_GXM_ERROR_INVALID_SAMPLER_RESULT_TYPE_PRECISION";
case SCE_GXM_ERROR_INVALID_SAMPLER_RESULT_TYPE_COMPONENT_COUNT:
return "SCE_GXM_ERROR_INVALID_SAMPLER_RESULT_TYPE_COMPONENT_COUNT";
case SCE_GXM_ERROR_UNIFORM_BUFFER_NOT_RESERVED:
return "SCE_GXM_ERROR_UNIFORM_BUFFER_NOT_RESERVED";
case SCE_GXM_ERROR_INVALID_AUXILIARY_SURFACE:
return "SCE_GXM_ERROR_INVALID_AUXILIARY_SURFACE";
case SCE_GXM_ERROR_INVALID_PRECOMPUTED_DRAW:
return "SCE_GXM_ERROR_INVALID_PRECOMPUTED_DRAW";
case SCE_GXM_ERROR_INVALID_PRECOMPUTED_VERTEX_STATE:
return "SCE_GXM_ERROR_INVALID_PRECOMPUTED_VERTEX_STATE";
case SCE_GXM_ERROR_INVALID_PRECOMPUTED_FRAGMENT_STATE:
return "SCE_GXM_ERROR_INVALID_PRECOMPUTED_FRAGMENT_STATE";
case SCE_GXM_ERROR_DRIVER:
return "SCE_GXM_ERROR_DRIVER";
case SCE_GXM_ERROR_INVALID_TEXTURE:
return "SCE_GXM_ERROR_INVALID_TEXTURE";
case SCE_GXM_ERROR_INVALID_TEXTURE_DATA_POINTER:
return "SCE_GXM_ERROR_INVALID_TEXTURE_DATA_POINTER";
case SCE_GXM_ERROR_INVALID_TEXTURE_PALETTE_POINTER:
return "SCE_GXM_ERROR_INVALID_TEXTURE_PALETTE_POINTER";
case SCE_GXM_ERROR_OUT_OF_RENDER_TARGETS:
return "SCE_GXM_ERROR_OUT_OF_RENDER_TARGETS";
default:
return "Unknown error";
}
}
static void display_queue_callback(const void *callbackData) {
SceDisplayFrameBuf display_fb;
const struct display_queue_callback_data *cb_data = (struct display_queue_callback_data *) callbackData;
memset(&display_fb, 0, sizeof(display_fb));
display_fb.size = sizeof(display_fb);
display_fb.base = cb_data->addr;
display_fb.pitch = DISPLAY_STRIDE;
display_fb.pixelformat = DISPLAY_PIXEL_FORMAT;
display_fb.width = DISPLAY_WIDTH;
display_fb.height = DISPLAY_HEIGHT;
sceDisplaySetFrameBuf(&display_fb, SCE_DISPLAY_SETBUF_NEXTFRAME);
if (gxm_internal.initOptions.swapInterval) {
GXM_CHECK_VOID(sceDisplayWaitVblankStartMulti(gxm_internal.initOptions.swapInterval));
}
}
void *gpu_alloc_map(SceKernelMemBlockType type, SceGxmMemoryAttribFlags gpu_attrib, size_t size, SceUID *uid) {
SceUID memuid;
void *addr;
if (type == SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW)
size = ALIGN(size, 256 * 1024);
else
size = ALIGN(size, 4 * 1024);
memuid = sceKernelAllocMemBlock("gpumem", type, size, NULL);
if (memuid < 0)
return NULL;
if (sceKernelGetMemBlockBase(memuid, &addr) < 0)
return NULL;
if (sceGxmMapMemory(addr, size, gpu_attrib) < 0) {
sceKernelFreeMemBlock(memuid);
return NULL;
}
if (uid)
*uid = memuid;
return addr;
}
void gpu_unmap_free(SceUID uid) {
void *addr;
if (uid == 0)
return;
if (sceKernelGetMemBlockBase(uid, &addr) < 0)
return;
sceGxmUnmapMemory(addr);
sceKernelFreeMemBlock(uid);
}
static void *gpu_vertex_usse_alloc_map(size_t size, SceUID *uid, unsigned int *usse_offset) {
SceUID memuid;
void *addr;
size = ALIGN(size, 4 * 1024);
memuid = sceKernelAllocMemBlock("gpu_vertex_usse",
SCE_KERNEL_MEMBLOCK_TYPE_USER_RW_UNCACHE, size, NULL);
if (memuid < 0)
return NULL;
if (sceKernelGetMemBlockBase(memuid, &addr) < 0)
return NULL;
if (sceGxmMapVertexUsseMemory(addr, size, usse_offset) < 0)
return NULL;
if (uid)
*uid = memuid;
return addr;
}
static void gpu_vertex_usse_unmap_free(SceUID uid) {
void *addr;
if (uid == 0)
return;
if (sceKernelGetMemBlockBase(uid, &addr) < 0)
return;
sceGxmUnmapVertexUsseMemory(addr);
sceKernelFreeMemBlock(uid);
}
static void *gpu_fragment_usse_alloc_map(size_t size, SceUID *uid, unsigned int *usse_offset) {
SceUID memuid;
void *addr;
size = ALIGN(size, 4 * 1024);
memuid = sceKernelAllocMemBlock("gpu_fragment_usse",
SCE_KERNEL_MEMBLOCK_TYPE_USER_RW_UNCACHE, size, NULL);
if (memuid < 0)
return NULL;
if (sceKernelGetMemBlockBase(memuid, &addr) < 0)
return NULL;
if (sceGxmMapFragmentUsseMemory(addr, size, usse_offset) < 0)
return NULL;
if (uid)
*uid = memuid;
return addr;
}
static void gpu_fragment_usse_unmap_free(SceUID uid) {
void *addr;
if (uid == 0)
return;
if (sceKernelGetMemBlockBase(uid, &addr) < 0)
return;
sceGxmUnmapFragmentUsseMemory(addr);
sceKernelFreeMemBlock(uid);
}
static void *shader_patcher_host_alloc_cb(void *user_data, unsigned int size) {
return malloc(size);
}
static void shader_patcher_host_free_cb(void *user_data, void *mem) {
return free(mem);
}
NVGXMwindow *gxmCreateWindow(const NVGXMinitOptions *opts) {
NVGXMwindow *window = NULL;
/**
* Alloc window
*/
window = (NVGXMwindow *) malloc(sizeof(NVGXMwindow));
if (window == NULL) {
return NULL;
}
memset(window, 0, sizeof(NVGXMwindow));
memcpy(&gxm_internal.initOptions, opts, sizeof(NVGXMinitOptions));
window->msaa = opts->msaa;
/**
* Create gxm context
*/
SceGxmInitializeParams gxm_init_params;
memset(&gxm_init_params, 0, sizeof(gxm_init_params));
gxm_init_params.flags = 0;
gxm_init_params.displayQueueMaxPendingCount = MAX_PENDING_SWAPS;
gxm_init_params.displayQueueCallback = display_queue_callback;
gxm_init_params.displayQueueCallbackDataSize = sizeof(struct display_queue_callback_data);
gxm_init_params.parameterBufferSize = SCE_GXM_DEFAULT_PARAMETER_BUFFER_SIZE;
sceGxmInitialize(&gxm_init_params);
window->vdm_ring_buffer_addr = gpu_alloc_map(SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW,
SCE_GXM_MEMORY_ATTRIB_READ,
SCE_GXM_DEFAULT_VDM_RING_BUFFER_SIZE,
&window->vdm_ring_buffer_uid);
window->vertex_ring_buffer_addr = gpu_alloc_map(SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW,
SCE_GXM_MEMORY_ATTRIB_READ,
SCE_GXM_DEFAULT_VERTEX_RING_BUFFER_SIZE,
&window->vertex_ring_buffer_uid);
window->fragment_ring_buffer_addr = gpu_alloc_map(SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW,
SCE_GXM_MEMORY_ATTRIB_READ,
SCE_GXM_DEFAULT_FRAGMENT_RING_BUFFER_SIZE,
&window->fragment_ring_buffer_uid);
unsigned int fragment_usse_offset;
window->fragment_usse_ring_buffer_addr = gpu_fragment_usse_alloc_map(
SCE_GXM_DEFAULT_FRAGMENT_USSE_RING_BUFFER_SIZE,
&window->fragment_usse_ring_buffer_uid, &fragment_usse_offset);
SceGxmContextParams gxm_context_params;
memset(&gxm_context_params, 0, sizeof(gxm_context_params));
gxm_context_params.hostMem = malloc(SCE_GXM_MINIMUM_CONTEXT_HOST_MEM_SIZE);
gxm_context_params.hostMemSize = SCE_GXM_MINIMUM_CONTEXT_HOST_MEM_SIZE;
gxm_context_params.vdmRingBufferMem = window->vdm_ring_buffer_addr;
gxm_context_params.vdmRingBufferMemSize = SCE_GXM_DEFAULT_VDM_RING_BUFFER_SIZE;
gxm_context_params.vertexRingBufferMem = window->vertex_ring_buffer_addr;
gxm_context_params.vertexRingBufferMemSize = SCE_GXM_DEFAULT_VERTEX_RING_BUFFER_SIZE;
gxm_context_params.fragmentRingBufferMem = window->fragment_ring_buffer_addr;
gxm_context_params.fragmentRingBufferMemSize = SCE_GXM_DEFAULT_FRAGMENT_RING_BUFFER_SIZE;
gxm_context_params.fragmentUsseRingBufferMem = window->fragment_usse_ring_buffer_addr;
gxm_context_params.fragmentUsseRingBufferMemSize = SCE_GXM_DEFAULT_FRAGMENT_USSE_RING_BUFFER_SIZE;
gxm_context_params.fragmentUsseRingBufferOffset = fragment_usse_offset;
sceGxmCreateContext(&gxm_context_params, &window->context);
if (window->context == NULL) {
gxmDeleteWindow(window);
return NULL;
}
/**
* Create default framebuffer
*/
NVGXMframebufferInitOptions framebufferOpts = {
.display_buffer_count = DISPLAY_BUFFER_COUNT,
.scenesPerFrame = opts->scenesPerFrame,
.render_target = NULL,
.color_format = DISPLAY_COLOR_FORMAT,
.color_surface_type = DISPLAY_COLOR_SURFACE_TYPE,
.display_width = DISPLAY_WIDTH,
.display_height = DISPLAY_HEIGHT,
.display_stride = DISPLAY_STRIDE,
};
window->fb = gxmCreateFramebuffer(&framebufferOpts);
if (!window->fb) {
gxmDeleteWindow(window);
return NULL;
}
/**
* Create shader patcher
*/
static const unsigned int shader_patcher_buffer_size = 64 * 1024;
static const unsigned int shader_patcher_vertex_usse_size = 64 * 1024;
static const unsigned int shader_patcher_fragment_usse_size = 64 * 1024;
window->gxm_shader_patcher_buffer_addr = gpu_alloc_map(SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW,
SCE_GXM_MEMORY_ATTRIB_RW,
shader_patcher_buffer_size,
&window->gxm_shader_patcher_buffer_uid);
unsigned int shader_patcher_vertex_usse_offset;
window->gxm_shader_patcher_vertex_usse_addr = gpu_vertex_usse_alloc_map(
shader_patcher_vertex_usse_size, &window->gxm_shader_patcher_vertex_usse_uid,
&shader_patcher_vertex_usse_offset);
unsigned int shader_patcher_fragment_usse_offset;
window->gxm_shader_patcher_fragment_usse_addr = gpu_fragment_usse_alloc_map(
shader_patcher_fragment_usse_size, &window->gxm_shader_patcher_fragment_usse_uid,
&shader_patcher_fragment_usse_offset);
SceGxmShaderPatcherParams shader_patcher_params;
memset(&shader_patcher_params, 0, sizeof(shader_patcher_params));
shader_patcher_params.userData = NULL;
shader_patcher_params.hostAllocCallback = shader_patcher_host_alloc_cb;
shader_patcher_params.hostFreeCallback = shader_patcher_host_free_cb;
shader_patcher_params.bufferAllocCallback = NULL;
shader_patcher_params.bufferFreeCallback = NULL;
shader_patcher_params.bufferMem = window->gxm_shader_patcher_buffer_addr;
shader_patcher_params.bufferMemSize = shader_patcher_buffer_size;
shader_patcher_params.vertexUsseAllocCallback = NULL;
shader_patcher_params.vertexUsseFreeCallback = NULL;
shader_patcher_params.vertexUsseMem = window->gxm_shader_patcher_vertex_usse_addr;
shader_patcher_params.vertexUsseMemSize = shader_patcher_vertex_usse_size;
shader_patcher_params.vertexUsseOffset = shader_patcher_vertex_usse_offset;
shader_patcher_params.fragmentUsseAllocCallback = NULL;
shader_patcher_params.fragmentUsseFreeCallback = NULL;
shader_patcher_params.fragmentUsseMem = window->gxm_shader_patcher_fragment_usse_addr;
shader_patcher_params.fragmentUsseMemSize = shader_patcher_fragment_usse_size;
shader_patcher_params.fragmentUsseOffset = shader_patcher_fragment_usse_offset;
sceGxmShaderPatcherCreate(&shader_patcher_params, &window->shader_patcher);
gxm_internal.context = window->context;
gxm_internal.shader_patcher = window->shader_patcher;
/**
* Alloc shared linear indices
*/
gxm_internal.linearIndices = (unsigned short *) gpu_alloc_map(
SCE_KERNEL_MEMBLOCK_TYPE_USER_RW_UNCACHE,
SCE_GXM_MEMORY_ATTRIB_READ,
UINT16_MAX * sizeof(unsigned short),
&gxm_internal.linearIndicesUid);
for (uint32_t i = 0; i < UINT16_MAX; ++i) {
gxm_internal.linearIndices[i] = i;
}
/**
* Create clear shader
*/
#if USE_VITA_SHARK
static const char *clearVertShader = "float4 main(float2 position) : POSITION\n"
"{\n"
" return float4(position, 1.f, 1.f);\n"
"}\n";
static const char *clearFragShader = "__nativecolor __regformat unsigned char4 main(uniform float4 color) : COLOR\n"
"{\n"
" return unsigned char4(color * 255);\n"
"}\n";
#else
static const unsigned char clearVertShader[252] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0xf9, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00,
0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0xb8, 0x00, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x04, 0x00, 0x00, 0x00, 0x80, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x74, 0x00, 0x00, 0x00, 0x70,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6c, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x5c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x4c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x04,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07,
0x44, 0xfa, 0x01, 0x00, 0x04, 0x90, 0x85, 0x11, 0xa5, 0x08, 0x01,
0x80, 0x56, 0x90, 0x81, 0x11, 0x83, 0x08, 0x00, 0x00, 0x20, 0xa0,
0x00, 0x50, 0x27, 0xfb, 0x10, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00,
0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x6f,
0x73, 0x69, 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, 0x00, 0x00
};
static const unsigned char clearFragShader[236] = {
0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x00, 0x03, 0xea, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x41, 0x20,
0x18, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x7c, 0x00,
0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x68, 0x00, 0x00, 0x00, 0x6c,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x04, 0x00, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00, 0x90, 0x3a,
0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x58, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00,
0x00, 0x01, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x07, 0x04, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x02, 0x80, 0x1d, 0xa0, 0x3e, 0x0c, 0x84, 0x40, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x44, 0xfa, 0x00, 0x00,
0x00, 0xe0, 0x09, 0x00, 0x81, 0x50, 0x0e, 0x00, 0x00, 0x00, 0x00,
0x00, 0x04, 0x00, 0x10, 0x00, 0x00, 0x00, 0x01, 0xe4, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x6f, 0x6c,
0x6f, 0x72, 0x00, 0x00, 0x00
};
#endif
if (gxmCreateShader(&gxm_internal.clearProg, "clear", (const char *) clearVertShader,
(const char *) clearFragShader) == 0) {
gxmDeleteWindow(window);
return NULL;
}
gxm_internal.clearVertices = (struct clear_vertex *) gpu_alloc_map(
SCE_KERNEL_MEMBLOCK_TYPE_USER_RW_UNCACHE,
SCE_GXM_MEMORY_ATTRIB_READ,
3 * sizeof(struct clear_vertex),
&gxm_internal.clearVerticesUid);
gxm_internal.clearVertices[0] = (struct clear_vertex) {-1.0f, -1.0f};
gxm_internal.clearVertices[1] = (struct clear_vertex) {3.0f, -1.0f};
gxm_internal.clearVertices[2] = (struct clear_vertex) {-1.0f, 3.0f};
gxm_internal.clearParam = sceGxmProgramFindParameterByName(gxm_internal.clearProg.frag_gxp, "color");
gxmClearColor(1.0f, 1.0f, 1.0f, 1.0f);
const SceGxmProgramParameter *clear_position_param = sceGxmProgramFindParameterByName(
gxm_internal.clearProg.vert_gxp,
"position");
SceGxmVertexAttribute clear_vertex_attribute;
clear_vertex_attribute.streamIndex = 0;
clear_vertex_attribute.offset = 0;
clear_vertex_attribute.format = SCE_GXM_ATTRIBUTE_FORMAT_F32;
clear_vertex_attribute.componentCount = 2;
clear_vertex_attribute.regIndex = sceGxmProgramParameterGetResourceIndex(clear_position_param);
SceGxmVertexStream clear_vertex_stream;
clear_vertex_stream.stride = sizeof(struct clear_vertex);
clear_vertex_stream.indexSource = SCE_GXM_INDEX_SOURCE_INDEX_16BIT;
GXM_CHECK(sceGxmShaderPatcherCreateVertexProgram(
gxm_internal.shader_patcher, gxm_internal.clearProg.vert_id,
&clear_vertex_attribute, 1,
&clear_vertex_stream, 1,
&gxm_internal.clearProg.vert));
GXM_CHECK(sceGxmShaderPatcherCreateFragmentProgram(
gxm_internal.shader_patcher, gxm_internal.clearProg.frag_id,
SCE_GXM_OUTPUT_REGISTER_FORMAT_UCHAR4, SCE_GXM_MULTISAMPLE_NONE,
NULL, gxm_internal.clearProg.vert_gxp,
&gxm_internal.clearProg.frag));
gxm_internal.window = window;
return window;
}
void gxmDeleteWindow(NVGXMwindow *window) {
if (window == NULL) return;
gpu_unmap_free(gxm_internal.linearIndicesUid); // linear index buffer
gpu_unmap_free(gxm_internal.clearVerticesUid); // clear vertex stream
gxmDeleteShader(&gxm_internal.clearProg);
if (window->shader_patcher)
sceGxmShaderPatcherDestroy(window->shader_patcher);
gpu_unmap_free(window->gxm_shader_patcher_buffer_uid);
gpu_vertex_usse_unmap_free(window->gxm_shader_patcher_vertex_usse_uid);
gpu_fragment_usse_unmap_free(window->gxm_shader_patcher_fragment_usse_uid);
gxmDeleteFramebuffer(window->fb);
gpu_unmap_free(window->vdm_ring_buffer_uid);
gpu_unmap_free(window->vertex_ring_buffer_uid);
gpu_unmap_free(window->fragment_ring_buffer_uid);
gpu_fragment_usse_unmap_free(window->fragment_usse_ring_buffer_uid);
if (window->context)
sceGxmDestroyContext(window->context);
sceGxmTerminate();
free(window);
}
NVGXMwindow *gxmGetWindow(void) {
return gxm_internal.window;
}
NVGXMframebuffer *gxmCreateFramebuffer(const NVGXMframebufferInitOptions *opts) {
NVGXMframebuffer *fb = (NVGXMframebuffer *) malloc(sizeof(NVGXMframebuffer));
if (fb == NULL) {
return NULL;
}
assert(opts->scenesPerFrame >= 1 && opts->scenesPerFrame <= 8);
assert(opts->display_buffer_count >= 1);
assert(opts->render_target && opts->display_buffer_count == 1 || !opts->render_target);
memset(fb, 0, sizeof(NVGXMframebuffer));
memcpy(&fb->initOptions, opts, sizeof(NVGXMframebufferInitOptions));
SceGxmRenderTargetParams render_target_params;
memset(&render_target_params, 0, sizeof(render_target_params));
render_target_params.flags = 0;
render_target_params.width = opts->display_width;
render_target_params.height = opts->display_height;
render_target_params.scenesPerFrame = opts->scenesPerFrame;
render_target_params.multisampleMode = gxm_internal.initOptions.msaa;
render_target_params.multisampleLocations = 0;
render_target_params.driverMemBlock = -1;
sceGxmCreateRenderTarget(&render_target_params, &fb->gxm_render_target);
fb->gxm_color_surfaces = (NVGXMcolorSurface *) malloc(opts->display_buffer_count * sizeof(NVGXMcolorSurface));
if (fb->gxm_color_surfaces == NULL) {
gxmDeleteFramebuffer(fb);
return NULL;
}
memset(fb->gxm_color_surfaces, 0, opts->display_buffer_count * sizeof(NVGXMcolorSurface));
for (int i = 0; i < opts->display_buffer_count; i++) {
if (opts->render_target) {
// Share the same data address between color surface and texture
fb->gxm_color_surfaces[i].surface_addr = opts->render_target->data;
} else {
fb->gxm_color_surfaces[i].surface_addr = gpu_alloc_map(SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW,
SCE_GXM_MEMORY_ATTRIB_RW,
4 * opts->display_stride * opts->display_height,
&fb->gxm_color_surfaces[i].surface_uid);
if (fb->gxm_color_surfaces[i].surface_addr == NULL) {
gxmDeleteFramebuffer(fb);
return NULL;
}
sceGxmSyncObjectCreate(&fb->gxm_color_surfaces[i].sync_object);
}
memset(fb->gxm_color_surfaces[i].surface_addr, 0, 4 * opts->display_stride * opts->display_height);
sceGxmColorSurfaceInit(&fb->gxm_color_surfaces[i].surface,
opts->color_format,
opts->color_surface_type,
(gxm_internal.initOptions.msaa == SCE_GXM_MULTISAMPLE_NONE)
? SCE_GXM_COLOR_SURFACE_SCALE_NONE
: SCE_GXM_COLOR_SURFACE_SCALE_MSAA_DOWNSCALE,
SCE_GXM_OUTPUT_REGISTER_SIZE_32BIT,
opts->display_width,
opts->display_height,
opts->display_stride,
fb->gxm_color_surfaces[i].surface_addr);
}
unsigned int depth_stencil_width = ALIGN(opts->display_width, SCE_GXM_TILE_SIZEX);
unsigned int depth_stencil_height = ALIGN(opts->display_height, SCE_GXM_TILE_SIZEY);
unsigned int depth_stencil_samples = depth_stencil_width * depth_stencil_height;
if (gxm_internal.initOptions.msaa == SCE_GXM_MULTISAMPLE_4X) {
// samples increase in X and Y
depth_stencil_samples *= 4;
depth_stencil_width *= 2;
} else if (gxm_internal.initOptions.msaa == SCE_GXM_MULTISAMPLE_2X) {
// samples increase in Y only
depth_stencil_samples *= 2;
}
fb->gxm_depth_stencil_surface_addr = gpu_alloc_map(SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW,
SCE_GXM_MEMORY_ATTRIB_RW,
4 * depth_stencil_samples, &fb->gxm_depth_stencil_surface_uid);
if (fb->gxm_depth_stencil_surface_addr == NULL) {
gxmDeleteFramebuffer(fb);
return NULL;
}
sceGxmDepthStencilSurfaceInit(&fb->gxm_depth_stencil_surface,
SCE_GXM_DEPTH_STENCIL_FORMAT_S8D24,
SCE_GXM_DEPTH_STENCIL_SURFACE_TILED,
depth_stencil_width,
fb->gxm_depth_stencil_surface_addr,
NULL);
return fb;
}
void gxmDeleteFramebuffer(NVGXMframebuffer *fb) {
if (fb == NULL)
return;
if (fb->gxm_depth_stencil_surface_uid)
gpu_unmap_free(fb->gxm_depth_stencil_surface_uid);
if (fb->gxm_color_surfaces) {
for (int i = 0; i < fb->initOptions.display_buffer_count; i++) {
if (fb->gxm_color_surfaces[i].surface_uid)
gpu_unmap_free(fb->gxm_color_surfaces[i].surface_uid);
if (fb->gxm_color_surfaces[i].sync_object)
sceGxmSyncObjectDestroy(fb->gxm_color_surfaces[i].sync_object);
}
free(fb->gxm_color_surfaces);
}
sceGxmDestroyRenderTarget(fb->gxm_render_target);
free(fb);
}
static int tex_format_to_bytespp(SceGxmTextureFormat format) {
switch (format & 0x9f000000U) {
case SCE_GXM_TEXTURE_BASE_FORMAT_U8:
case SCE_GXM_TEXTURE_BASE_FORMAT_S8:
case SCE_GXM_TEXTURE_BASE_FORMAT_P8:
return 1;
case SCE_GXM_TEXTURE_BASE_FORMAT_U4U4U4U4:
case SCE_GXM_TEXTURE_BASE_FORMAT_U8U3U3U2:
case SCE_GXM_TEXTURE_BASE_FORMAT_U1U5U5U5:
case SCE_GXM_TEXTURE_BASE_FORMAT_U5U6U5:
case SCE_GXM_TEXTURE_BASE_FORMAT_S5S5U6:
case SCE_GXM_TEXTURE_BASE_FORMAT_U8U8:
case SCE_GXM_TEXTURE_BASE_FORMAT_S8S8:
return 2;
case SCE_GXM_TEXTURE_BASE_FORMAT_U8U8U8:
case SCE_GXM_TEXTURE_BASE_FORMAT_S8S8S8:
return 3;
case SCE_GXM_TEXTURE_BASE_FORMAT_U8U8U8U8:
case SCE_GXM_TEXTURE_BASE_FORMAT_S8S8S8S8:
case SCE_GXM_TEXTURE_BASE_FORMAT_F32:
case SCE_GXM_TEXTURE_BASE_FORMAT_U32:
case SCE_GXM_TEXTURE_BASE_FORMAT_S32:
default:
return 4;
}
}
NVGXMtexture *gxmCreateTexture(int width, int height, SceGxmTextureFormat format, void *data) {
int aligned_w = ALIGN(width, 8);
int spp = tex_format_to_bytespp(format);
int stride = aligned_w * spp;
int tex_size = stride * height;
int ret;
NVGXMtexture *texture = (NVGXMtexture *) malloc(sizeof(NVGXMtexture));
if (texture == NULL) {
return NULL;
}
memset(texture, 0, sizeof(NVGXMtexture));
texture->data = (uint8_t *) gpu_alloc_map(SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW,
SCE_GXM_MEMORY_ATTRIB_RW,
tex_size,
&texture->uid);
if (texture->data == NULL) {
gxmDeleteTexture(texture);
return NULL;
}
/* Clear the texture */
if (data == NULL) {
memset(texture->data, 0, tex_size);
} else {
for (int i = 0; i < height; i++) {
memcpy(texture->data + i * stride, (uint8_t *) data + i * width * spp, width * spp);
}
}
/* Create the gxm texture */
ret = sceGxmTextureInitLinear(&texture->tex, texture->data, format, width, height, 0);
if (ret < 0) {
GXM_PRINT_ERROR(ret);
gxmDeleteTexture(texture);
return NULL;
}
return texture;
}
void gxmDeleteTexture(NVGXMtexture *texture) {
if (texture == NULL) return;
if (texture->uid)
gpu_unmap_free(texture->uid);
free(texture);
}
void gxmClearColor(float r, float g, float b, float a) {
gxm_internal.clearColor.r = r;
gxm_internal.clearColor.g = g;
gxm_internal.clearColor.b = b;
gxm_internal.clearColor.a = a;
}
void gxmClear(void) {
sceGxmSetVertexProgram(gxm_internal.context, gxm_internal.clearProg.vert);
sceGxmSetFragmentProgram(gxm_internal.context, gxm_internal.clearProg.frag);
sceGxmSetVertexStream(gxm_internal.context, 0, gxm_internal.clearVertices);
// set clear color
void *buffer;
sceGxmReserveFragmentDefaultUniformBuffer(gxm_internal.context, &buffer);
sceGxmSetUniformDataF(buffer, gxm_internal.clearParam, 0, 4, gxm_internal.clearColor.rgba);
// clear stencil buffer
sceGxmSetFrontStencilRef(gxm_internal.context, 0);
sceGxmSetBackStencilRef(gxm_internal.context, 0);
sceGxmSetFrontStencilFunc(gxm_internal.context, SCE_GXM_STENCIL_FUNC_ALWAYS, SCE_GXM_STENCIL_OP_ZERO,
SCE_GXM_STENCIL_OP_ZERO, SCE_GXM_STENCIL_OP_ZERO, 0xff, 0xff);
sceGxmSetBackStencilFunc(gxm_internal.context, SCE_GXM_STENCIL_FUNC_ALWAYS, SCE_GXM_STENCIL_OP_ZERO,
SCE_GXM_STENCIL_OP_ZERO, SCE_GXM_STENCIL_OP_ZERO, 0xff, 0xff);
sceGxmDraw(gxm_internal.context,
SCE_GXM_PRIMITIVE_TRIANGLES,
SCE_GXM_INDEX_FORMAT_U16,
gxm_internal.linearIndices,
3);
}
void gxmScissor(int x, int y, int w, int h) {
sceGxmSetRegionClip(gxm_internal.context, SCE_GXM_REGION_CLIP_OUTSIDE, x, y, x + w, y + h);
}
void gxmBeginFrame(void) {
NVGXMwindow *window = gxm_internal.window;
if (!window) return;
NVGXMframebuffer *fb = window->fb;
if (!fb) return;
gxmBeginFrameEx(fb, 0);
}
void gxmBeginFrameEx(NVGXMframebuffer *fb, unsigned int flags) {
GXM_CHECK_VOID(sceGxmBeginScene(gxm_internal.context,
flags,
fb->gxm_render_target,
NULL,
NULL,
fb->gxm_color_surfaces[fb->gxm_back_buffer_index].sync_object,
&fb->gxm_color_surfaces[fb->gxm_back_buffer_index].surface,
&fb->gxm_depth_stencil_surface));
}
void gxmEndFrame(void) {
GXM_CHECK_VOID(sceGxmEndScene(gxm_internal.context, NULL, NULL));
}
void gxmSwapBuffer(void) {
NVGXMwindow *window = gxm_internal.window;
if (!window) return;
NVGXMframebuffer *fb = window->fb;
if (!fb) return;
struct display_queue_callback_data queue_cb_data;
queue_cb_data.addr = fb->gxm_color_surfaces[fb->gxm_back_buffer_index].surface_addr;
GXM_CHECK_VOID(sceGxmDisplayQueueAddEntry(
fb->gxm_color_surfaces[fb->gxm_front_buffer_index].sync_object,
fb->gxm_color_surfaces[fb->gxm_back_buffer_index].sync_object,
&queue_cb_data));
fb->gxm_front_buffer_index = fb->gxm_back_buffer_index;
fb->gxm_back_buffer_index = (fb->gxm_back_buffer_index + 1) % fb->initOptions.display_buffer_count;
}
void gxmSwapInterval(int interval) {
gxm_internal.initOptions.swapInterval = interval;
}
int gxmDialogUpdate(void) {
NVGXMwindow *window = gxm_internal.window;
if (!window) return SCE_COMMON_DIALOG_RESULT_ABORTED;
NVGXMframebuffer *fb = window->fb;
if (!fb) return SCE_COMMON_DIALOG_RESULT_ABORTED;
SceCommonDialogUpdateParam updateParam;
memset(&updateParam, 0, sizeof(updateParam));
updateParam.renderTarget.colorFormat = fb->initOptions.color_format;
updateParam.renderTarget.surfaceType = fb->initOptions.color_surface_type;
updateParam.renderTarget.width = fb->initOptions.display_width;
updateParam.renderTarget.height = fb->initOptions.display_height;
updateParam.renderTarget.strideInPixels = fb->initOptions.display_stride;
updateParam.renderTarget.colorSurfaceData = fb->gxm_color_surfaces[fb->gxm_back_buffer_index].surface_addr;
updateParam.renderTarget.depthSurfaceData = fb->gxm_depth_stencil_surface_addr;
updateParam.displaySyncObject = fb->gxm_color_surfaces[fb->gxm_back_buffer_index].sync_object;
return sceCommonDialogUpdate(&updateParam);
}
void *gxmReadPixels(void) {
NVGXMwindow *window = gxm_internal.window;
if (!window) return NULL;
NVGXMframebuffer *fb = window->fb;
if (!fb) return NULL;
return sceGxmColorSurfaceGetData(&fb->gxm_color_surfaces[fb->gxm_front_buffer_index].surface);
}
unsigned short *gxmGetSharedIndices(void) {
return gxm_internal.linearIndices;
}
#ifdef USE_VITA_SHARK
void dumpShader(const char *name, const char *type, const SceGxmProgram *program, uint32_t size) {
char path[256];
int need_comma = 0;
char *buf = (char *) malloc(0x5000);
memset(buf, 0, 0x5000);
memcpy(buf, program, size);
snprintf(path, sizeof(path), "ux0:data/nvg_%s%s.c", name, type);
FILE *fp = fopen(path, "w");
if (fp) {
fprintf(fp, "static const unsigned char %s%sShader[%i] = {", name, type, size);
for (uint32_t i = 0; i < size; ++i) {
if (need_comma)
fprintf(fp, ", ");
else
need_comma = 1;
if ((i % 11) == 0)
fprintf(fp, "\n\t");
fprintf(fp, "0x%.2x", buf[i] & 0xff);
}
fprintf(fp, "\n};\n\n");
fclose(fp);
}
}
int gxmCreateShader(NVGXMshaderProgram *shader, const char *name, const char *vshader, const char *fshader) {
if (vshader != NULL) {
uint32_t size = strlen(vshader);
SceGxmProgram *p = shark_compile_shader_extended(vshader, &size, SHARK_VERTEX_SHADER, SHARK_OPT_FAST,
SHARK_ENABLE, SHARK_DISABLE, SHARK_ENABLE);
if (!p) {
sceClibPrintf("shark_compile_shader failed (vert): %s\n", name);
shark_clear_output();
return 0;
}
shader->vert_gxp = (SceGxmProgram *) malloc(size);
sceClibMemcpy((void *) shader->vert_gxp, (void *) p, size);
shark_clear_output();
GXM_CHECK(sceGxmShaderPatcherRegisterProgram(gxm_internal.shader_patcher, shader->vert_gxp, &shader->vert_id));
GXM_CHECK(sceGxmProgramCheck(shader->vert_gxp));
if (gxm_internal.initOptions.dumpShader) {
dumpShader(name, "Vert", shader->vert_gxp, size);
}
}
if (fshader != NULL) {
uint32_t size = strlen(fshader);
SceGxmProgram *p = shark_compile_shader_extended(fshader, &size, SHARK_FRAGMENT_SHADER, SHARK_OPT_FAST,
SHARK_ENABLE, SHARK_DISABLE, SHARK_ENABLE);
if (!p) {
sceClibPrintf("shark_compile_shader failed (frag): %s\n", name);
shark_clear_output();
return 0;
}
shader->frag_gxp = (SceGxmProgram *) malloc(size);
sceClibMemcpy((void *) shader->frag_gxp, (void *) p, size);
shark_clear_output();
GXM_CHECK(sceGxmShaderPatcherRegisterProgram(gxm_internal.shader_patcher, shader->frag_gxp, &shader->frag_id));
GXM_CHECK(sceGxmProgramCheck(shader->frag_gxp));
if (gxm_internal.initOptions.dumpShader) {
dumpShader(name, "Frag", shader->frag_gxp, size);
}
}
return 1;
}
#else
int gxmCreateShader(NVGXMshaderProgram *shader, const char *name, const char *vshader, const char *fshader) {
(void) name;
if (vshader != NULL) {
shader->vert_gxp = (SceGxmProgram *) vshader;
GXM_CHECK(sceGxmShaderPatcherRegisterProgram(gxm_internal.shader_patcher, shader->vert_gxp, &shader->vert_id));
GXM_CHECK(sceGxmProgramCheck(shader->vert_gxp));
}
if (fshader != NULL) {
shader->frag_gxp = (SceGxmProgram *) fshader;
GXM_CHECK(sceGxmShaderPatcherRegisterProgram(gxm_internal.shader_patcher, shader->frag_gxp, &shader->frag_id));
GXM_CHECK(sceGxmProgramCheck(shader->frag_gxp));
}
return 1;
}
#endif
void gxmDeleteShader(NVGXMshaderProgram *prog) {
if (gxm_internal.shader_patcher == NULL)
return;
if (prog->vert)
sceGxmShaderPatcherReleaseVertexProgram(gxm_internal.shader_patcher, prog->vert);
if (prog->frag)
sceGxmShaderPatcherReleaseFragmentProgram(gxm_internal.shader_patcher, prog->frag);
if (prog->vert_id)
sceGxmShaderPatcherUnregisterProgram(gxm_internal.shader_patcher, prog->vert_id);
if (prog->frag_id)
sceGxmShaderPatcherUnregisterProgram(gxm_internal.shader_patcher, prog->frag_id);
#ifdef USE_VITA_SHARK
if (prog->vert_gxp)
free(prog->vert_gxp);
if (prog->frag_gxp)
free(prog->frag_gxp);
#endif
}
int gxmCreateFragmentProgram(SceGxmShaderPatcherId programId,
SceGxmOutputRegisterFormat outputFormat,
const SceGxmBlendInfo *blendInfo,
const SceGxmProgram *vertexProgram,
SceGxmFragmentProgram **fragmentProgram) {
return sceGxmShaderPatcherCreateFragmentProgram(gxm_internal.shader_patcher,
programId,
outputFormat,
gxm_internal.initOptions.msaa,
blendInfo,
vertexProgram,
fragmentProgram);
}
int gxmCreateVertexProgram(SceGxmShaderPatcherId programId,
const SceGxmVertexAttribute *attributes,
unsigned int attributeCount,
const SceGxmVertexStream *streams,
unsigned int streamCount,
SceGxmVertexProgram **vertexProgram) {
return sceGxmShaderPatcherCreateVertexProgram(gxm_internal.shader_patcher,
programId,
attributes,
attributeCount,
streams,
streamCount,
vertexProgram);
}
#endif // NANOVG_GXM_UTILS_IMPLEMENTATION
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
src/stb_dxt.h | C/C++ Header | // stb_dxt.h - v1.12 - DXT1/DXT5 compressor - public domain
// original by fabian "ryg" giesen - ported to C by stb
// use '#define STB_DXT_IMPLEMENTATION' before including to create the implementation
//
// USAGE:
// call stb_compress_dxt_block() for every block (you must pad)
// source should be a 4x4 block of RGBA data in row-major order;
// Alpha channel is not stored if you specify alpha=0 (but you
// must supply some constant alpha in the alpha channel).
// You can turn on dithering and "high quality" using mode.
//
// version history:
// v1.12 - (ryg) fix bug in single-color table generator
// v1.11 - (ryg) avoid racy global init, better single-color tables, remove dither
// v1.10 - (i.c) various small quality improvements
// v1.09 - (stb) update documentation re: surprising alpha channel requirement
// v1.08 - (stb) fix bug in dxt-with-alpha block
// v1.07 - (stb) bc4; allow not using libc; add STB_DXT_STATIC
// v1.06 - (stb) fix to known-broken 1.05
// v1.05 - (stb) support bc5/3dc (Arvids Kokins), use extern "C" in C++ (Pavel Krajcevski)
// v1.04 - (ryg) default to no rounding bias for lerped colors (as per S3TC/DX10 spec);
// single color match fix (allow for inexact color interpolation);
// optimal DXT5 index finder; "high quality" mode that runs multiple refinement steps.
// v1.03 - (stb) endianness support
// v1.02 - (stb) fix alpha encoding bug
// v1.01 - (stb) fix bug converting to RGB that messed up quality, thanks ryg & cbloom
// v1.00 - (stb) first release
//
// contributors:
// Rich Geldreich (more accurate index selection)
// Kevin Schmidt (#defines for "freestanding" compilation)
// github:ppiastucki (BC4 support)
// Ignacio Castano - improve DXT endpoint quantization
// Alan Hickman - static table initialization
//
// LICENSE
//
// See end of file for license information.
#ifndef STB_INCLUDE_STB_DXT_H
#define STB_INCLUDE_STB_DXT_H
#ifdef __cplusplus
extern "C" {
#endif
#ifdef STB_DXT_STATIC
#define STBDDEF static
#else
#define STBDDEF extern
#endif
// compression mode (bitflags)
#define STB_DXT_NORMAL 0
#define STB_DXT_DITHER 1 // use dithering. was always dubious, now deprecated. does nothing!
#define STB_DXT_HIGHQUAL 2 // high quality mode, does two refinement steps instead of 1. ~30-40% slower.
STBDDEF void stb_compress_dxt_block(unsigned char *dest, const unsigned char *src_rgba_four_bytes_per_pixel, int alpha, int mode);
STBDDEF void stb_compress_bc4_block(unsigned char *dest, const unsigned char *src_r_one_byte_per_pixel);
STBDDEF void stb_compress_bc5_block(unsigned char *dest, const unsigned char *src_rg_two_byte_per_pixel);
#define STB_COMPRESS_DXT_BLOCK
#ifdef __cplusplus
}
#endif
#endif // STB_INCLUDE_STB_DXT_H
#ifdef STB_DXT_IMPLEMENTATION
// configuration options for DXT encoder. set them in the project/makefile or just define
// them at the top.
// STB_DXT_USE_ROUNDING_BIAS
// use a rounding bias during color interpolation. this is closer to what "ideal"
// interpolation would do but doesn't match the S3TC/DX10 spec. old versions (pre-1.03)
// implicitly had this turned on.
//
// in case you're targeting a specific type of hardware (e.g. console programmers):
// NVidia and Intel GPUs (as of 2010) as well as DX9 ref use DXT decoders that are closer
// to STB_DXT_USE_ROUNDING_BIAS. AMD/ATI, S3 and DX10 ref are closer to rounding with no bias.
// you also see "(a*5 + b*3) / 8" on some old GPU designs.
// #define STB_DXT_USE_ROUNDING_BIAS
#include <stdlib.h>
#if !defined(STBD_FABS)
#include <math.h>
#endif
#ifndef STBD_FABS
#define STBD_FABS(x) fabs(x)
#endif
static const unsigned char stb__OMatch5[256][2] = {
{ 0, 0 }, { 0, 0 }, { 0, 1 }, { 0, 1 }, { 1, 0 }, { 1, 0 }, { 1, 0 }, { 1, 1 },
{ 1, 1 }, { 1, 1 }, { 1, 2 }, { 0, 4 }, { 2, 1 }, { 2, 1 }, { 2, 1 }, { 2, 2 },
{ 2, 2 }, { 2, 2 }, { 2, 3 }, { 1, 5 }, { 3, 2 }, { 3, 2 }, { 4, 0 }, { 3, 3 },
{ 3, 3 }, { 3, 3 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 5 }, { 4, 3 }, { 4, 3 },
{ 5, 2 }, { 4, 4 }, { 4, 4 }, { 4, 5 }, { 4, 5 }, { 5, 4 }, { 5, 4 }, { 5, 4 },
{ 6, 3 }, { 5, 5 }, { 5, 5 }, { 5, 6 }, { 4, 8 }, { 6, 5 }, { 6, 5 }, { 6, 5 },
{ 6, 6 }, { 6, 6 }, { 6, 6 }, { 6, 7 }, { 5, 9 }, { 7, 6 }, { 7, 6 }, { 8, 4 },
{ 7, 7 }, { 7, 7 }, { 7, 7 }, { 7, 8 }, { 7, 8 }, { 7, 8 }, { 7, 9 }, { 8, 7 },
{ 8, 7 }, { 9, 6 }, { 8, 8 }, { 8, 8 }, { 8, 9 }, { 8, 9 }, { 9, 8 }, { 9, 8 },
{ 9, 8 }, { 10, 7 }, { 9, 9 }, { 9, 9 }, { 9, 10 }, { 8, 12 }, { 10, 9 }, { 10, 9 },
{ 10, 9 }, { 10, 10 }, { 10, 10 }, { 10, 10 }, { 10, 11 }, { 9, 13 }, { 11, 10 }, { 11, 10 },
{ 12, 8 }, { 11, 11 }, { 11, 11 }, { 11, 11 }, { 11, 12 }, { 11, 12 }, { 11, 12 }, { 11, 13 },
{ 12, 11 }, { 12, 11 }, { 13, 10 }, { 12, 12 }, { 12, 12 }, { 12, 13 }, { 12, 13 }, { 13, 12 },
{ 13, 12 }, { 13, 12 }, { 14, 11 }, { 13, 13 }, { 13, 13 }, { 13, 14 }, { 12, 16 }, { 14, 13 },
{ 14, 13 }, { 14, 13 }, { 14, 14 }, { 14, 14 }, { 14, 14 }, { 14, 15 }, { 13, 17 }, { 15, 14 },
{ 15, 14 }, { 16, 12 }, { 15, 15 }, { 15, 15 }, { 15, 15 }, { 15, 16 }, { 15, 16 }, { 15, 16 },
{ 15, 17 }, { 16, 15 }, { 16, 15 }, { 17, 14 }, { 16, 16 }, { 16, 16 }, { 16, 17 }, { 16, 17 },
{ 17, 16 }, { 17, 16 }, { 17, 16 }, { 18, 15 }, { 17, 17 }, { 17, 17 }, { 17, 18 }, { 16, 20 },
{ 18, 17 }, { 18, 17 }, { 18, 17 }, { 18, 18 }, { 18, 18 }, { 18, 18 }, { 18, 19 }, { 17, 21 },
{ 19, 18 }, { 19, 18 }, { 20, 16 }, { 19, 19 }, { 19, 19 }, { 19, 19 }, { 19, 20 }, { 19, 20 },
{ 19, 20 }, { 19, 21 }, { 20, 19 }, { 20, 19 }, { 21, 18 }, { 20, 20 }, { 20, 20 }, { 20, 21 },
{ 20, 21 }, { 21, 20 }, { 21, 20 }, { 21, 20 }, { 22, 19 }, { 21, 21 }, { 21, 21 }, { 21, 22 },
{ 20, 24 }, { 22, 21 }, { 22, 21 }, { 22, 21 }, { 22, 22 }, { 22, 22 }, { 22, 22 }, { 22, 23 },
{ 21, 25 }, { 23, 22 }, { 23, 22 }, { 24, 20 }, { 23, 23 }, { 23, 23 }, { 23, 23 }, { 23, 24 },
{ 23, 24 }, { 23, 24 }, { 23, 25 }, { 24, 23 }, { 24, 23 }, { 25, 22 }, { 24, 24 }, { 24, 24 },
{ 24, 25 }, { 24, 25 }, { 25, 24 }, { 25, 24 }, { 25, 24 }, { 26, 23 }, { 25, 25 }, { 25, 25 },
{ 25, 26 }, { 24, 28 }, { 26, 25 }, { 26, 25 }, { 26, 25 }, { 26, 26 }, { 26, 26 }, { 26, 26 },
{ 26, 27 }, { 25, 29 }, { 27, 26 }, { 27, 26 }, { 28, 24 }, { 27, 27 }, { 27, 27 }, { 27, 27 },
{ 27, 28 }, { 27, 28 }, { 27, 28 }, { 27, 29 }, { 28, 27 }, { 28, 27 }, { 29, 26 }, { 28, 28 },
{ 28, 28 }, { 28, 29 }, { 28, 29 }, { 29, 28 }, { 29, 28 }, { 29, 28 }, { 30, 27 }, { 29, 29 },
{ 29, 29 }, { 29, 30 }, { 29, 30 }, { 30, 29 }, { 30, 29 }, { 30, 29 }, { 30, 30 }, { 30, 30 },
{ 30, 30 }, { 30, 31 }, { 30, 31 }, { 31, 30 }, { 31, 30 }, { 31, 30 }, { 31, 31 }, { 31, 31 },
};
static const unsigned char stb__OMatch6[256][2] = {
{ 0, 0 }, { 0, 1 }, { 1, 0 }, { 1, 1 }, { 1, 1 }, { 1, 2 }, { 2, 1 }, { 2, 2 },
{ 2, 2 }, { 2, 3 }, { 3, 2 }, { 3, 3 }, { 3, 3 }, { 3, 4 }, { 4, 3 }, { 4, 4 },
{ 4, 4 }, { 4, 5 }, { 5, 4 }, { 5, 5 }, { 5, 5 }, { 5, 6 }, { 6, 5 }, { 6, 6 },
{ 6, 6 }, { 6, 7 }, { 7, 6 }, { 7, 7 }, { 7, 7 }, { 7, 8 }, { 8, 7 }, { 8, 8 },
{ 8, 8 }, { 8, 9 }, { 9, 8 }, { 9, 9 }, { 9, 9 }, { 9, 10 }, { 10, 9 }, { 10, 10 },
{ 10, 10 }, { 10, 11 }, { 11, 10 }, { 8, 16 }, { 11, 11 }, { 11, 12 }, { 12, 11 }, { 9, 17 },
{ 12, 12 }, { 12, 13 }, { 13, 12 }, { 11, 16 }, { 13, 13 }, { 13, 14 }, { 14, 13 }, { 12, 17 },
{ 14, 14 }, { 14, 15 }, { 15, 14 }, { 14, 16 }, { 15, 15 }, { 15, 16 }, { 16, 14 }, { 16, 15 },
{ 17, 14 }, { 16, 16 }, { 16, 17 }, { 17, 16 }, { 18, 15 }, { 17, 17 }, { 17, 18 }, { 18, 17 },
{ 20, 14 }, { 18, 18 }, { 18, 19 }, { 19, 18 }, { 21, 15 }, { 19, 19 }, { 19, 20 }, { 20, 19 },
{ 20, 20 }, { 20, 20 }, { 20, 21 }, { 21, 20 }, { 21, 21 }, { 21, 21 }, { 21, 22 }, { 22, 21 },
{ 22, 22 }, { 22, 22 }, { 22, 23 }, { 23, 22 }, { 23, 23 }, { 23, 23 }, { 23, 24 }, { 24, 23 },
{ 24, 24 }, { 24, 24 }, { 24, 25 }, { 25, 24 }, { 25, 25 }, { 25, 25 }, { 25, 26 }, { 26, 25 },
{ 26, 26 }, { 26, 26 }, { 26, 27 }, { 27, 26 }, { 24, 32 }, { 27, 27 }, { 27, 28 }, { 28, 27 },
{ 25, 33 }, { 28, 28 }, { 28, 29 }, { 29, 28 }, { 27, 32 }, { 29, 29 }, { 29, 30 }, { 30, 29 },
{ 28, 33 }, { 30, 30 }, { 30, 31 }, { 31, 30 }, { 30, 32 }, { 31, 31 }, { 31, 32 }, { 32, 30 },
{ 32, 31 }, { 33, 30 }, { 32, 32 }, { 32, 33 }, { 33, 32 }, { 34, 31 }, { 33, 33 }, { 33, 34 },
{ 34, 33 }, { 36, 30 }, { 34, 34 }, { 34, 35 }, { 35, 34 }, { 37, 31 }, { 35, 35 }, { 35, 36 },
{ 36, 35 }, { 36, 36 }, { 36, 36 }, { 36, 37 }, { 37, 36 }, { 37, 37 }, { 37, 37 }, { 37, 38 },
{ 38, 37 }, { 38, 38 }, { 38, 38 }, { 38, 39 }, { 39, 38 }, { 39, 39 }, { 39, 39 }, { 39, 40 },
{ 40, 39 }, { 40, 40 }, { 40, 40 }, { 40, 41 }, { 41, 40 }, { 41, 41 }, { 41, 41 }, { 41, 42 },
{ 42, 41 }, { 42, 42 }, { 42, 42 }, { 42, 43 }, { 43, 42 }, { 40, 48 }, { 43, 43 }, { 43, 44 },
{ 44, 43 }, { 41, 49 }, { 44, 44 }, { 44, 45 }, { 45, 44 }, { 43, 48 }, { 45, 45 }, { 45, 46 },
{ 46, 45 }, { 44, 49 }, { 46, 46 }, { 46, 47 }, { 47, 46 }, { 46, 48 }, { 47, 47 }, { 47, 48 },
{ 48, 46 }, { 48, 47 }, { 49, 46 }, { 48, 48 }, { 48, 49 }, { 49, 48 }, { 50, 47 }, { 49, 49 },
{ 49, 50 }, { 50, 49 }, { 52, 46 }, { 50, 50 }, { 50, 51 }, { 51, 50 }, { 53, 47 }, { 51, 51 },
{ 51, 52 }, { 52, 51 }, { 52, 52 }, { 52, 52 }, { 52, 53 }, { 53, 52 }, { 53, 53 }, { 53, 53 },
{ 53, 54 }, { 54, 53 }, { 54, 54 }, { 54, 54 }, { 54, 55 }, { 55, 54 }, { 55, 55 }, { 55, 55 },
{ 55, 56 }, { 56, 55 }, { 56, 56 }, { 56, 56 }, { 56, 57 }, { 57, 56 }, { 57, 57 }, { 57, 57 },
{ 57, 58 }, { 58, 57 }, { 58, 58 }, { 58, 58 }, { 58, 59 }, { 59, 58 }, { 59, 59 }, { 59, 59 },
{ 59, 60 }, { 60, 59 }, { 60, 60 }, { 60, 60 }, { 60, 61 }, { 61, 60 }, { 61, 61 }, { 61, 61 },
{ 61, 62 }, { 62, 61 }, { 62, 62 }, { 62, 62 }, { 62, 63 }, { 63, 62 }, { 63, 63 }, { 63, 63 },
};
static int stb__Mul8Bit(int a, int b)
{
int t = a*b + 128;
return (t + (t >> 8)) >> 8;
}
static void stb__From16Bit(unsigned char *out, unsigned short v)
{
int rv = (v & 0xf800) >> 11;
int gv = (v & 0x07e0) >> 5;
int bv = (v & 0x001f) >> 0;
// expand to 8 bits via bit replication
out[0] = (rv * 33) >> 2;
out[1] = (gv * 65) >> 4;
out[2] = (bv * 33) >> 2;
out[3] = 0;
}
static unsigned short stb__As16Bit(int r, int g, int b)
{
return (unsigned short)((stb__Mul8Bit(r,31) << 11) + (stb__Mul8Bit(g,63) << 5) + stb__Mul8Bit(b,31));
}
// linear interpolation at 1/3 point between a and b, using desired rounding type
static int stb__Lerp13(int a, int b)
{
#ifdef STB_DXT_USE_ROUNDING_BIAS
// with rounding bias
return a + stb__Mul8Bit(b-a, 0x55);
#else
// without rounding bias
// replace "/ 3" by "* 0xaaab) >> 17" if your compiler sucks or you really need every ounce of speed.
return (2*a + b) / 3;
#endif
}
// lerp RGB color
static void stb__Lerp13RGB(unsigned char *out, unsigned char *p1, unsigned char *p2)
{
out[0] = (unsigned char)stb__Lerp13(p1[0], p2[0]);
out[1] = (unsigned char)stb__Lerp13(p1[1], p2[1]);
out[2] = (unsigned char)stb__Lerp13(p1[2], p2[2]);
}
/****************************************************************************/
static void stb__EvalColors(unsigned char *color,unsigned short c0,unsigned short c1)
{
stb__From16Bit(color+ 0, c0);
stb__From16Bit(color+ 4, c1);
stb__Lerp13RGB(color+ 8, color+0, color+4);
stb__Lerp13RGB(color+12, color+4, color+0);
}
// The color matching function
static unsigned int stb__MatchColorsBlock(unsigned char *block, unsigned char *color)
{
unsigned int mask = 0;
int dirr = color[0*4+0] - color[1*4+0];
int dirg = color[0*4+1] - color[1*4+1];
int dirb = color[0*4+2] - color[1*4+2];
int dots[16];
int stops[4];
int i;
int c0Point, halfPoint, c3Point;
for(i=0;i<16;i++)
dots[i] = block[i*4+0]*dirr + block[i*4+1]*dirg + block[i*4+2]*dirb;
for(i=0;i<4;i++)
stops[i] = color[i*4+0]*dirr + color[i*4+1]*dirg + color[i*4+2]*dirb;
// think of the colors as arranged on a line; project point onto that line, then choose
// next color out of available ones. we compute the crossover points for "best color in top
// half"/"best in bottom half" and then the same inside that subinterval.
//
// relying on this 1d approximation isn't always optimal in terms of euclidean distance,
// but it's very close and a lot faster.
// http://cbloomrants.blogspot.com/2008/12/12-08-08-dxtc-summary.html
c0Point = (stops[1] + stops[3]);
halfPoint = (stops[3] + stops[2]);
c3Point = (stops[2] + stops[0]);
for (i=15;i>=0;i--) {
int dot = dots[i]*2;
mask <<= 2;
if(dot < halfPoint)
mask |= (dot < c0Point) ? 1 : 3;
else
mask |= (dot < c3Point) ? 2 : 0;
}
return mask;
}
// The color optimization function. (Clever code, part 1)
static void stb__OptimizeColorsBlock(unsigned char *block, unsigned short *pmax16, unsigned short *pmin16)
{
int mind,maxd;
unsigned char *minp, *maxp;
double magn;
int v_r,v_g,v_b;
static const int nIterPower = 4;
float covf[6],vfr,vfg,vfb;
// determine color distribution
int cov[6];
int mu[3],min[3],max[3];
int ch,i,iter;
for(ch=0;ch<3;ch++)
{
const unsigned char *bp = ((const unsigned char *) block) + ch;
int muv,minv,maxv;
muv = minv = maxv = bp[0];
for(i=4;i<64;i+=4)
{
muv += bp[i];
if (bp[i] < minv) minv = bp[i];
else if (bp[i] > maxv) maxv = bp[i];
}
mu[ch] = (muv + 8) >> 4;
min[ch] = minv;
max[ch] = maxv;
}
// determine covariance matrix
for (i=0;i<6;i++)
cov[i] = 0;
for (i=0;i<16;i++)
{
int r = block[i*4+0] - mu[0];
int g = block[i*4+1] - mu[1];
int b = block[i*4+2] - mu[2];
cov[0] += r*r;
cov[1] += r*g;
cov[2] += r*b;
cov[3] += g*g;
cov[4] += g*b;
cov[5] += b*b;
}
// convert covariance matrix to float, find principal axis via power iter
for(i=0;i<6;i++)
covf[i] = cov[i] / 255.0f;
vfr = (float) (max[0] - min[0]);
vfg = (float) (max[1] - min[1]);
vfb = (float) (max[2] - min[2]);
for(iter=0;iter<nIterPower;iter++)
{
float r = vfr*covf[0] + vfg*covf[1] + vfb*covf[2];
float g = vfr*covf[1] + vfg*covf[3] + vfb*covf[4];
float b = vfr*covf[2] + vfg*covf[4] + vfb*covf[5];
vfr = r;
vfg = g;
vfb = b;
}
magn = STBD_FABS(vfr);
if (STBD_FABS(vfg) > magn) magn = STBD_FABS(vfg);
if (STBD_FABS(vfb) > magn) magn = STBD_FABS(vfb);
if(magn < 4.0f) { // too small, default to luminance
v_r = 299; // JPEG YCbCr luma coefs, scaled by 1000.
v_g = 587;
v_b = 114;
} else {
magn = 512.0 / magn;
v_r = (int) (vfr * magn);
v_g = (int) (vfg * magn);
v_b = (int) (vfb * magn);
}
minp = maxp = block;
mind = maxd = block[0]*v_r + block[1]*v_g + block[2]*v_b;
// Pick colors at extreme points
for(i=1;i<16;i++)
{
int dot = block[i*4+0]*v_r + block[i*4+1]*v_g + block[i*4+2]*v_b;
if (dot < mind) {
mind = dot;
minp = block+i*4;
}
if (dot > maxd) {
maxd = dot;
maxp = block+i*4;
}
}
*pmax16 = stb__As16Bit(maxp[0],maxp[1],maxp[2]);
*pmin16 = stb__As16Bit(minp[0],minp[1],minp[2]);
}
static const float stb__midpoints5[32] = {
0.015686f, 0.047059f, 0.078431f, 0.111765f, 0.145098f, 0.176471f, 0.207843f, 0.241176f, 0.274510f, 0.305882f, 0.337255f, 0.370588f, 0.403922f, 0.435294f, 0.466667f, 0.5f,
0.533333f, 0.564706f, 0.596078f, 0.629412f, 0.662745f, 0.694118f, 0.725490f, 0.758824f, 0.792157f, 0.823529f, 0.854902f, 0.888235f, 0.921569f, 0.952941f, 0.984314f, 1.0f
};
static const float stb__midpoints6[64] = {
0.007843f, 0.023529f, 0.039216f, 0.054902f, 0.070588f, 0.086275f, 0.101961f, 0.117647f, 0.133333f, 0.149020f, 0.164706f, 0.180392f, 0.196078f, 0.211765f, 0.227451f, 0.245098f,
0.262745f, 0.278431f, 0.294118f, 0.309804f, 0.325490f, 0.341176f, 0.356863f, 0.372549f, 0.388235f, 0.403922f, 0.419608f, 0.435294f, 0.450980f, 0.466667f, 0.482353f, 0.500000f,
0.517647f, 0.533333f, 0.549020f, 0.564706f, 0.580392f, 0.596078f, 0.611765f, 0.627451f, 0.643137f, 0.658824f, 0.674510f, 0.690196f, 0.705882f, 0.721569f, 0.737255f, 0.754902f,
0.772549f, 0.788235f, 0.803922f, 0.819608f, 0.835294f, 0.850980f, 0.866667f, 0.882353f, 0.898039f, 0.913725f, 0.929412f, 0.945098f, 0.960784f, 0.976471f, 0.992157f, 1.0f
};
static unsigned short stb__Quantize5(float x)
{
unsigned short q;
x = x < 0 ? 0 : x > 1 ? 1 : x; // saturate
q = (unsigned short)(x * 31);
q += (x > stb__midpoints5[q]);
return q;
}
static unsigned short stb__Quantize6(float x)
{
unsigned short q;
x = x < 0 ? 0 : x > 1 ? 1 : x; // saturate
q = (unsigned short)(x * 63);
q += (x > stb__midpoints6[q]);
return q;
}
// The refinement function. (Clever code, part 2)
// Tries to optimize colors to suit block contents better.
// (By solving a least squares system via normal equations+Cramer's rule)
static int stb__RefineBlock(unsigned char *block, unsigned short *pmax16, unsigned short *pmin16, unsigned int mask)
{
static const int w1Tab[4] = { 3,0,2,1 };
static const int prods[4] = { 0x090000,0x000900,0x040102,0x010402 };
// ^some magic to save a lot of multiplies in the accumulating loop...
// (precomputed products of weights for least squares system, accumulated inside one 32-bit register)
float f;
unsigned short oldMin, oldMax, min16, max16;
int i, akku = 0, xx,xy,yy;
int At1_r,At1_g,At1_b;
int At2_r,At2_g,At2_b;
unsigned int cm = mask;
oldMin = *pmin16;
oldMax = *pmax16;
if((mask ^ (mask<<2)) < 4) // all pixels have the same index?
{
// yes, linear system would be singular; solve using optimal
// single-color match on average color
int r = 8, g = 8, b = 8;
for (i=0;i<16;++i) {
r += block[i*4+0];
g += block[i*4+1];
b += block[i*4+2];
}
r >>= 4; g >>= 4; b >>= 4;
max16 = (stb__OMatch5[r][0]<<11) | (stb__OMatch6[g][0]<<5) | stb__OMatch5[b][0];
min16 = (stb__OMatch5[r][1]<<11) | (stb__OMatch6[g][1]<<5) | stb__OMatch5[b][1];
} else {
At1_r = At1_g = At1_b = 0;
At2_r = At2_g = At2_b = 0;
for (i=0;i<16;++i,cm>>=2) {
int step = cm&3;
int w1 = w1Tab[step];
int r = block[i*4+0];
int g = block[i*4+1];
int b = block[i*4+2];
akku += prods[step];
At1_r += w1*r;
At1_g += w1*g;
At1_b += w1*b;
At2_r += r;
At2_g += g;
At2_b += b;
}
At2_r = 3*At2_r - At1_r;
At2_g = 3*At2_g - At1_g;
At2_b = 3*At2_b - At1_b;
// extract solutions and decide solvability
xx = akku >> 16;
yy = (akku >> 8) & 0xff;
xy = (akku >> 0) & 0xff;
f = 3.0f / 255.0f / (xx*yy - xy*xy);
max16 = stb__Quantize5((At1_r*yy - At2_r * xy) * f) << 11;
max16 |= stb__Quantize6((At1_g*yy - At2_g * xy) * f) << 5;
max16 |= stb__Quantize5((At1_b*yy - At2_b * xy) * f) << 0;
min16 = stb__Quantize5((At2_r*xx - At1_r * xy) * f) << 11;
min16 |= stb__Quantize6((At2_g*xx - At1_g * xy) * f) << 5;
min16 |= stb__Quantize5((At2_b*xx - At1_b * xy) * f) << 0;
}
*pmin16 = min16;
*pmax16 = max16;
return oldMin != min16 || oldMax != max16;
}
// Color block compression
static void stb__CompressColorBlock(unsigned char *dest, unsigned char *block, int mode)
{
unsigned int mask;
int i;
int refinecount;
unsigned short max16, min16;
unsigned char color[4*4];
refinecount = (mode & STB_DXT_HIGHQUAL) ? 2 : 1;
// check if block is constant
for (i=1;i<16;i++)
if (((unsigned int *) block)[i] != ((unsigned int *) block)[0])
break;
if(i == 16) { // constant color
int r = block[0], g = block[1], b = block[2];
mask = 0xaaaaaaaa;
max16 = (stb__OMatch5[r][0]<<11) | (stb__OMatch6[g][0]<<5) | stb__OMatch5[b][0];
min16 = (stb__OMatch5[r][1]<<11) | (stb__OMatch6[g][1]<<5) | stb__OMatch5[b][1];
} else {
// first step: PCA+map along principal axis
stb__OptimizeColorsBlock(block,&max16,&min16);
if (max16 != min16) {
stb__EvalColors(color,max16,min16);
mask = stb__MatchColorsBlock(block,color);
} else
mask = 0;
// third step: refine (multiple times if requested)
for (i=0;i<refinecount;i++) {
unsigned int lastmask = mask;
if (stb__RefineBlock(block,&max16,&min16,mask)) {
if (max16 != min16) {
stb__EvalColors(color,max16,min16);
mask = stb__MatchColorsBlock(block,color);
} else {
mask = 0;
break;
}
}
if(mask == lastmask)
break;
}
}
// write the color block
if(max16 < min16)
{
unsigned short t = min16;
min16 = max16;
max16 = t;
mask ^= 0x55555555;
}
dest[0] = (unsigned char) (max16);
dest[1] = (unsigned char) (max16 >> 8);
dest[2] = (unsigned char) (min16);
dest[3] = (unsigned char) (min16 >> 8);
dest[4] = (unsigned char) (mask);
dest[5] = (unsigned char) (mask >> 8);
dest[6] = (unsigned char) (mask >> 16);
dest[7] = (unsigned char) (mask >> 24);
}
// Alpha block compression (this is easy for a change)
static void stb__CompressAlphaBlock(unsigned char *dest,unsigned char *src, int stride)
{
int i,dist,bias,dist4,dist2,bits,mask;
// find min/max color
int mn,mx;
mn = mx = src[0];
for (i=1;i<16;i++)
{
if (src[i*stride] < mn) mn = src[i*stride];
else if (src[i*stride] > mx) mx = src[i*stride];
}
// encode them
dest[0] = (unsigned char)mx;
dest[1] = (unsigned char)mn;
dest += 2;
// determine bias and emit color indices
// given the choice of mx/mn, these indices are optimal:
// http://fgiesen.wordpress.com/2009/12/15/dxt5-alpha-block-index-determination/
dist = mx-mn;
dist4 = dist*4;
dist2 = dist*2;
bias = (dist < 8) ? (dist - 1) : (dist/2 + 2);
bias -= mn * 7;
bits = 0,mask=0;
for (i=0;i<16;i++) {
int a = src[i*stride]*7 + bias;
int ind,t;
// select index. this is a "linear scale" lerp factor between 0 (val=min) and 7 (val=max).
t = (a >= dist4) ? -1 : 0; ind = t & 4; a -= dist4 & t;
t = (a >= dist2) ? -1 : 0; ind += t & 2; a -= dist2 & t;
ind += (a >= dist);
// turn linear scale into DXT index (0/1 are extremal pts)
ind = -ind & 7;
ind ^= (2 > ind);
// write index
mask |= ind << bits;
if((bits += 3) >= 8) {
*dest++ = (unsigned char)mask;
mask >>= 8;
bits -= 8;
}
}
}
void stb_compress_dxt_block(unsigned char *dest, const unsigned char *src, int alpha, int mode)
{
unsigned char data[16][4];
if (alpha) {
int i;
stb__CompressAlphaBlock(dest,(unsigned char*) src+3, 4);
dest += 8;
// make a new copy of the data in which alpha is opaque,
// because code uses a fast test for color constancy
memcpy(data, src, 4*16);
for (i=0; i < 16; ++i)
data[i][3] = 255;
src = &data[0][0];
}
stb__CompressColorBlock(dest,(unsigned char*) src,mode);
}
void stb_compress_bc4_block(unsigned char *dest, const unsigned char *src)
{
stb__CompressAlphaBlock(dest,(unsigned char*) src, 1);
}
void stb_compress_bc5_block(unsigned char *dest, const unsigned char *src)
{
stb__CompressAlphaBlock(dest,(unsigned char*) src,2);
stb__CompressAlphaBlock(dest + 8,(unsigned char*) src+1,2);
}
#endif // STB_DXT_IMPLEMENTATION
// Compile with STB_DXT_IMPLEMENTATION and STB_DXT_GENERATE_TABLES
// defined to generate the tables above.
#ifdef STB_DXT_GENERATE_TABLES
#include <stdio.h>
int main()
{
int i, j;
const char *omatch_names[] = { "stb__OMatch5", "stb__OMatch6" };
int dequant_mults[2] = { 33*4, 65 }; // .4 fixed-point dequant multipliers
// optimal endpoint tables
for (i = 0; i < 2; ++i) {
int dequant = dequant_mults[i];
int size = i ? 64 : 32;
printf("static const unsigned char %s[256][2] = {\n", omatch_names[i]);
for (int j = 0; j < 256; ++j) {
int mn, mx;
int best_mn = 0, best_mx = 0;
int best_err = 256 * 100;
for (mn=0;mn<size;mn++) {
for (mx=0;mx<size;mx++) {
int mine = (mn * dequant) >> 4;
int maxe = (mx * dequant) >> 4;
int err = abs(stb__Lerp13(maxe, mine) - j) * 100;
// DX10 spec says that interpolation must be within 3% of "correct" result,
// add this as error term. Normally we'd expect a random distribution of
// +-1.5% error, but nowhere in the spec does it say that the error has to be
// unbiased - better safe than sorry.
err += abs(maxe - mine) * 3;
if(err < best_err) {
best_mn = mn;
best_mx = mx;
best_err = err;
}
}
}
if ((j % 8) == 0) printf(" "); // 2 spaces, third is done below
printf(" { %2d, %2d },", best_mx, best_mn);
if ((j % 8) == 7) printf("\n");
}
printf("};\n");
}
return 0;
}
#endif
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain. We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors. We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
src/stb_image.h | C/C++ Header | /* stb_image - v2.10 - public domain image loader - http://nothings.org/stb_image.h
no warranty implied; use at your own risk
Do this:
#define STB_IMAGE_IMPLEMENTATION
before you include this file in *one* C or C++ file to create the implementation.
// i.e. it should look like this:
#include ...
#include ...
#include ...
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
You can #define STBI_ASSERT(x) before the #include to avoid using assert.h.
And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free
QUICK NOTES:
Primarily of interest to game developers and other people who can
avoid problematic images and only need the trivial interface
JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib)
PNG 1/2/4/8-bit-per-channel (16 bpc not supported)
TGA (not sure what subset, if a subset)
BMP non-1bpp, non-RLE
PSD (composited view only, no extra channels, 8/16 bit-per-channel)
GIF (*comp always reports as 4-channel)
HDR (radiance rgbE format)
PIC (Softimage PIC)
PNM (PPM and PGM binary only)
Animated GIF still needs a proper API, but here's one way to do it:
http://gist.github.com/urraka/685d9a6340b26b830d49
- decode from memory or through FILE (define STBI_NO_STDIO to remove code)
- decode from arbitrary I/O callbacks
- SIMD acceleration on x86/x64 (SSE2) and ARM (NEON)
Full documentation under "DOCUMENTATION" below.
Revision 2.00 release notes:
- Progressive JPEG is now supported.
- PPM and PGM binary formats are now supported, thanks to Ken Miller.
- x86 platforms now make use of SSE2 SIMD instructions for
JPEG decoding, and ARM platforms can use NEON SIMD if requested.
This work was done by Fabian "ryg" Giesen. SSE2 is used by
default, but NEON must be enabled explicitly; see docs.
With other JPEG optimizations included in this version, we see
2x speedup on a JPEG on an x86 machine, and a 1.5x speedup
on a JPEG on an ARM machine, relative to previous versions of this
library. The same results will not obtain for all JPGs and for all
x86/ARM machines. (Note that progressive JPEGs are significantly
slower to decode than regular JPEGs.) This doesn't mean that this
is the fastest JPEG decoder in the land; rather, it brings it
closer to parity with standard libraries. If you want the fastest
decode, look elsewhere. (See "Philosophy" section of docs below.)
See final bullet items below for more info on SIMD.
- Added STBI_MALLOC, STBI_REALLOC, and STBI_FREE macros for replacing
the memory allocator. Unlike other STBI libraries, these macros don't
support a context parameter, so if you need to pass a context in to
the allocator, you'll have to store it in a global or a thread-local
variable.
- Split existing STBI_NO_HDR flag into two flags, STBI_NO_HDR and
STBI_NO_LINEAR.
STBI_NO_HDR: suppress implementation of .hdr reader format
STBI_NO_LINEAR: suppress high-dynamic-range light-linear float API
- You can suppress implementation of any of the decoders to reduce
your code footprint by #defining one or more of the following
symbols before creating the implementation.
STBI_NO_JPEG
STBI_NO_PNG
STBI_NO_BMP
STBI_NO_PSD
STBI_NO_TGA
STBI_NO_GIF
STBI_NO_HDR
STBI_NO_PIC
STBI_NO_PNM (.ppm and .pgm)
- You can request *only* certain decoders and suppress all other ones
(this will be more forward-compatible, as addition of new decoders
doesn't require you to disable them explicitly):
STBI_ONLY_JPEG
STBI_ONLY_PNG
STBI_ONLY_BMP
STBI_ONLY_PSD
STBI_ONLY_TGA
STBI_ONLY_GIF
STBI_ONLY_HDR
STBI_ONLY_PIC
STBI_ONLY_PNM (.ppm and .pgm)
Note that you can define multiples of these, and you will get all
of them ("only x" and "only y" is interpreted to mean "only x&y").
- If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still
want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB
- Compilation of all SIMD code can be suppressed with
#define STBI_NO_SIMD
It should not be necessary to disable SIMD unless you have issues
compiling (e.g. using an x86 compiler which doesn't support SSE
intrinsics or that doesn't support the method used to detect
SSE2 support at run-time), and even those can be reported as
bugs so I can refine the built-in compile-time checking to be
smarter.
- The old STBI_SIMD system which allowed installing a user-defined
IDCT etc. has been removed. If you need this, don't upgrade. My
assumption is that almost nobody was doing this, and those who
were will find the built-in SIMD more satisfactory anyway.
- RGB values computed for JPEG images are slightly different from
previous versions of stb_image. (This is due to using less
integer precision in SIMD.) The C code has been adjusted so
that the same RGB values will be computed regardless of whether
SIMD support is available, so your app should always produce
consistent results. But these results are slightly different from
previous versions. (Specifically, about 3% of available YCbCr values
will compute different RGB results from pre-1.49 versions by +-1;
most of the deviating values are one smaller in the G channel.)
- If you must produce consistent results with previous versions of
stb_image, #define STBI_JPEG_OLD and you will get the same results
you used to; however, you will not get the SIMD speedups for
the YCbCr-to-RGB conversion step (although you should still see
significant JPEG speedup from the other changes).
Please note that STBI_JPEG_OLD is a temporary feature; it will be
removed in future versions of the library. It is only intended for
near-term back-compatibility use.
Latest revision history:
2.10 (2016-01-22) avoid warning introduced in 2.09
2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED
2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA
2.07 (2015-09-13) partial animated GIF support
limited 16-bit PSD support
minor bugs, code cleanup, and compiler warnings
2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value
2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning
2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit
2.03 (2015-04-12) additional corruption checking
stbi_set_flip_vertically_on_load
fix NEON support; fix mingw support
2.02 (2015-01-19) fix incorrect assert, fix warning
2.01 (2015-01-17) fix various warnings
2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG
2.00 (2014-12-25) optimize JPEG, including x86 SSE2 & ARM NEON SIMD
progressive JPEG
PGM/PPM support
STBI_MALLOC,STBI_REALLOC,STBI_FREE
STBI_NO_*, STBI_ONLY_*
GIF bugfix
1.48 (2014-12-14) fix incorrectly-named assert()
1.47 (2014-12-14) 1/2/4-bit PNG support (both grayscale and paletted)
optimize PNG
fix bug in interlaced PNG with user-specified channel count
See end of file for full revision history.
============================ Contributors =========================
Image formats Extensions, features
Sean Barrett (jpeg, png, bmp) Jetro Lauha (stbi_info)
Nicolas Schulz (hdr, psd) Martin "SpartanJ" Golini (stbi_info)
Jonathan Dummer (tga) James "moose2000" Brown (iPhone PNG)
Jean-Marc Lienher (gif) Ben "Disch" Wenger (io callbacks)
Tom Seddon (pic) Omar Cornut (1/2/4-bit PNG)
Thatcher Ulrich (psd) Nicolas Guillemot (vertical flip)
Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD)
urraka@github (animated gif) Junggon Kim (PNM comments)
Daniel Gibson (16-bit TGA)
Optimizations & bugfixes
Fabian "ryg" Giesen
Arseny Kapoulkine
Bug & warning fixes
Marc LeBlanc David Woo Guillaume George Martins Mozeiko
Christpher Lloyd Martin Golini Jerry Jansson Joseph Thomson
Dave Moore Roy Eltham Hayaki Saito Phil Jordan
Won Chun Luke Graham Johan Duparc Nathan Reed
the Horde3D community Thomas Ruf Ronny Chevalier Nick Verigakis
Janez Zemva John Bartholomew Michal Cichon svdijk@github
Jonathan Blow Ken Hamada Tero Hanninen Baldur Karlsson
Laurent Gomila Cort Stratton Sergio Gonzalez romigrou@github
Aruelien Pocheville Thibault Reuille Cass Everitt
Ryamond Barbiero Paul Du Bois Engin Manap
Blazej Dariusz Roszkowski
Michaelangel007@github
LICENSE
This software is in the public domain. Where that dedication is not
recognized, you are granted a perpetual, irrevocable license to copy,
distribute, and modify this file as you see fit.
*/
#ifndef STBI_INCLUDE_STB_IMAGE_H
#define STBI_INCLUDE_STB_IMAGE_H
// DOCUMENTATION
//
// Limitations:
// - no 16-bit-per-channel PNG
// - no 12-bit-per-channel JPEG
// - no JPEGs with arithmetic coding
// - no 1-bit BMP
// - GIF always returns *comp=4
//
// Basic usage (see HDR discussion below for HDR usage):
// int x,y,n;
// unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
// // ... process data if not NULL ...
// // ... x = width, y = height, n = # 8-bit components per pixel ...
// // ... replace '0' with '1'..'4' to force that many components per pixel
// // ... but 'n' will always be the number that it would have been if you said 0
// stbi_image_free(data)
//
// Standard parameters:
// int *x -- outputs image width in pixels
// int *y -- outputs image height in pixels
// int *comp -- outputs # of image components in image file
// int req_comp -- if non-zero, # of image components requested in result
//
// The return value from an image loader is an 'unsigned char *' which points
// to the pixel data, or NULL on an allocation failure or if the image is
// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels,
// with each pixel consisting of N interleaved 8-bit components; the first
// pixel pointed to is top-left-most in the image. There is no padding between
// image scanlines or between pixels, regardless of format. The number of
// components N is 'req_comp' if req_comp is non-zero, or *comp otherwise.
// If req_comp is non-zero, *comp has the number of components that _would_
// have been output otherwise. E.g. if you set req_comp to 4, you will always
// get RGBA output, but you can check *comp to see if it's trivially opaque
// because e.g. there were only 3 channels in the source image.
//
// An output image with N components has the following components interleaved
// in this order in each pixel:
//
// N=#comp components
// 1 grey
// 2 grey, alpha
// 3 red, green, blue
// 4 red, green, blue, alpha
//
// If image loading fails for any reason, the return value will be NULL,
// and *x, *y, *comp will be unchanged. The function stbi_failure_reason()
// can be queried for an extremely brief, end-user unfriendly explanation
// of why the load failed. Define STBI_NO_FAILURE_STRINGS to avoid
// compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly
// more user-friendly ones.
//
// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized.
//
// ===========================================================================
//
// Philosophy
//
// stb libraries are designed with the following priorities:
//
// 1. easy to use
// 2. easy to maintain
// 3. good performance
//
// Sometimes I let "good performance" creep up in priority over "easy to maintain",
// and for best performance I may provide less-easy-to-use APIs that give higher
// performance, in addition to the easy to use ones. Nevertheless, it's important
// to keep in mind that from the standpoint of you, a client of this library,
// all you care about is #1 and #3, and stb libraries do not emphasize #3 above all.
//
// Some secondary priorities arise directly from the first two, some of which
// make more explicit reasons why performance can't be emphasized.
//
// - Portable ("ease of use")
// - Small footprint ("easy to maintain")
// - No dependencies ("ease of use")
//
// ===========================================================================
//
// I/O callbacks
//
// I/O callbacks allow you to read from arbitrary sources, like packaged
// files or some other source. Data read from callbacks are processed
// through a small internal buffer (currently 128 bytes) to try to reduce
// overhead.
//
// The three functions you must define are "read" (reads some bytes of data),
// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end).
//
// ===========================================================================
//
// SIMD support
//
// The JPEG decoder will try to automatically use SIMD kernels on x86 when
// supported by the compiler. For ARM Neon support, you must explicitly
// request it.
//
// (The old do-it-yourself SIMD API is no longer supported in the current
// code.)
//
// On x86, SSE2 will automatically be used when available based on a run-time
// test; if not, the generic C versions are used as a fall-back. On ARM targets,
// the typical path is to have separate builds for NEON and non-NEON devices
// (at least this is true for iOS and Android). Therefore, the NEON support is
// toggled by a build flag: define STBI_NEON to get NEON loops.
//
// The output of the JPEG decoder is slightly different from versions where
// SIMD support was introduced (that is, for versions before 1.49). The
// difference is only +-1 in the 8-bit RGB channels, and only on a small
// fraction of pixels. You can force the pre-1.49 behavior by defining
// STBI_JPEG_OLD, but this will disable some of the SIMD decoding path
// and hence cost some performance.
//
// If for some reason you do not want to use any of SIMD code, or if
// you have issues compiling it, you can disable it entirely by
// defining STBI_NO_SIMD.
//
// ===========================================================================
//
// HDR image support (disable by defining STBI_NO_HDR)
//
// stb_image now supports loading HDR images in general, and currently
// the Radiance .HDR file format, although the support is provided
// generically. You can still load any file through the existing interface;
// if you attempt to load an HDR file, it will be automatically remapped to
// LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1;
// both of these constants can be reconfigured through this interface:
//
// stbi_hdr_to_ldr_gamma(2.2f);
// stbi_hdr_to_ldr_scale(1.0f);
//
// (note, do not use _inverse_ constants; stbi_image will invert them
// appropriately).
//
// Additionally, there is a new, parallel interface for loading files as
// (linear) floats to preserve the full dynamic range:
//
// float *data = stbi_loadf(filename, &x, &y, &n, 0);
//
// If you load LDR images through this interface, those images will
// be promoted to floating point values, run through the inverse of
// constants corresponding to the above:
//
// stbi_ldr_to_hdr_scale(1.0f);
// stbi_ldr_to_hdr_gamma(2.2f);
//
// Finally, given a filename (or an open file or memory block--see header
// file for details) containing image data, you can query for the "most
// appropriate" interface to use (that is, whether the image is HDR or
// not), using:
//
// stbi_is_hdr(char *filename);
//
// ===========================================================================
//
// iPhone PNG support:
//
// By default we convert iphone-formatted PNGs back to RGB, even though
// they are internally encoded differently. You can disable this conversion
// by by calling stbi_convert_iphone_png_to_rgb(0), in which case
// you will always just get the native iphone "format" through (which
// is BGR stored in RGB).
//
// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per
// pixel to remove any premultiplied alpha *only* if the image file explicitly
// says there's premultiplied data (currently only happens in iPhone images,
// and only if iPhone convert-to-rgb processing is on).
//
#ifndef STBI_NO_STDIO
#include <stdio.h>
#endif // STBI_NO_STDIO
#define STBI_VERSION 1
enum
{
STBI_default = 0, // only used for req_comp
STBI_grey = 1,
STBI_grey_alpha = 2,
STBI_rgb = 3,
STBI_rgb_alpha = 4
};
typedef unsigned char stbi_uc;
#ifdef __cplusplus
extern "C" {
#endif
#ifdef STB_IMAGE_STATIC
#define STBIDEF static
#else
#define STBIDEF extern
#endif
//////////////////////////////////////////////////////////////////////////////
//
// PRIMARY API - works on images of any type
//
//
// load image by filename, open file, or memory buffer
//
typedef struct
{
int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read
void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative
int (*eof) (void *user); // returns nonzero if we are at end of file/data
} stbi_io_callbacks;
STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *comp, int req_comp);
STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *comp, int req_comp);
STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *comp, int req_comp);
#ifndef STBI_NO_STDIO
STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *comp, int req_comp);
// for stbi_load_from_file, file pointer is left pointing immediately after image
#endif
#ifndef STBI_NO_LINEAR
STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *comp, int req_comp);
STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp);
STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp);
#ifndef STBI_NO_STDIO
STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *comp, int req_comp);
#endif
#endif
#ifndef STBI_NO_HDR
STBIDEF void stbi_hdr_to_ldr_gamma(float gamma);
STBIDEF void stbi_hdr_to_ldr_scale(float scale);
#endif // STBI_NO_HDR
#ifndef STBI_NO_LINEAR
STBIDEF void stbi_ldr_to_hdr_gamma(float gamma);
STBIDEF void stbi_ldr_to_hdr_scale(float scale);
#endif // STBI_NO_LINEAR
// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR
STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user);
STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len);
#ifndef STBI_NO_STDIO
STBIDEF int stbi_is_hdr (char const *filename);
STBIDEF int stbi_is_hdr_from_file(FILE *f);
#endif // STBI_NO_STDIO
// get a VERY brief reason for failure
// NOT THREADSAFE
STBIDEF const char *stbi_failure_reason (void);
// free the loaded image -- this is just free()
STBIDEF void stbi_image_free (void *retval_from_stbi_load);
// get image dimensions & components without fully decoding
STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp);
STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp);
#ifndef STBI_NO_STDIO
STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp);
STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp);
#endif
// for image formats that explicitly notate that they have premultiplied alpha,
// we just return the colors as stored in the file. set this flag to force
// unpremultiplication. results are undefined if the unpremultiply overflow.
STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply);
// indicate whether we should process iphone images back to canonical format,
// or just pass them through "as-is"
STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert);
// flip the image vertically, so the first pixel in the output array is the bottom left
STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip);
// ZLIB client - used by PNG, available for other purposes
STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen);
STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header);
STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen);
STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen);
STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
#ifdef __cplusplus
}
#endif
//
//
//// end header file /////////////////////////////////////////////////////
#endif // STBI_INCLUDE_STB_IMAGE_H
#ifdef STB_IMAGE_IMPLEMENTATION
#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \
|| defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \
|| defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \
|| defined(STBI_ONLY_ZLIB)
#ifndef STBI_ONLY_JPEG
#define STBI_NO_JPEG
#endif
#ifndef STBI_ONLY_PNG
#define STBI_NO_PNG
#endif
#ifndef STBI_ONLY_BMP
#define STBI_NO_BMP
#endif
#ifndef STBI_ONLY_PSD
#define STBI_NO_PSD
#endif
#ifndef STBI_ONLY_TGA
#define STBI_NO_TGA
#endif
#ifndef STBI_ONLY_GIF
#define STBI_NO_GIF
#endif
#ifndef STBI_ONLY_HDR
#define STBI_NO_HDR
#endif
#ifndef STBI_ONLY_PIC
#define STBI_NO_PIC
#endif
#ifndef STBI_ONLY_PNM
#define STBI_NO_PNM
#endif
#endif
#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB)
#define STBI_NO_ZLIB
#endif
#include <stdarg.h>
#include <stddef.h> // ptrdiff_t on osx
#include <stdlib.h>
#include <string.h>
#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR)
#include <math.h> // ldexp
#endif
#ifndef STBI_NO_STDIO
#include <stdio.h>
#endif
#ifndef STBI_ASSERT
#include <assert.h>
#define STBI_ASSERT(x) assert(x)
#endif
#ifndef _MSC_VER
#ifdef __cplusplus
#define stbi_inline inline
#else
#define stbi_inline
#endif
#else
#define stbi_inline __forceinline
#endif
#ifdef _MSC_VER
typedef unsigned short stbi__uint16;
typedef signed short stbi__int16;
typedef unsigned int stbi__uint32;
typedef signed int stbi__int32;
#else
#include <stdint.h>
typedef uint16_t stbi__uint16;
typedef int16_t stbi__int16;
typedef uint32_t stbi__uint32;
typedef int32_t stbi__int32;
#endif
// should produce compiler error if size is wrong
typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1];
#ifdef _MSC_VER
#define STBI_NOTUSED(v) (void)(v)
#else
#define STBI_NOTUSED(v) (void)sizeof(v)
#endif
#ifdef _MSC_VER
#define STBI_HAS_LROTL
#endif
#ifdef STBI_HAS_LROTL
#define stbi_lrot(x,y) _lrotl(x,y)
#else
#define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (32 - (y))))
#endif
#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED))
// ok
#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED)
// ok
#else
#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)."
#endif
#ifndef STBI_MALLOC
#define STBI_MALLOC(sz) malloc(sz)
#define STBI_REALLOC(p,newsz) realloc(p,newsz)
#define STBI_FREE(p) free(p)
#endif
#ifndef STBI_REALLOC_SIZED
#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz)
#endif
// x86/x64 detection
#if defined(__x86_64__) || defined(_M_X64)
#define STBI__X64_TARGET
#elif defined(__i386) || defined(_M_IX86)
#define STBI__X86_TARGET
#endif
#if defined(__GNUC__) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET)) && !defined(__SSE2__) && !defined(STBI_NO_SIMD)
// NOTE: not clear do we actually need this for the 64-bit path?
// gcc doesn't support sse2 intrinsics unless you compile with -msse2,
// (but compiling with -msse2 allows the compiler to use SSE2 everywhere;
// this is just broken and gcc are jerks for not fixing it properly
// http://www.virtualdub.org/blog/pivot/entry.php?id=363 )
#define STBI_NO_SIMD
#endif
#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD)
// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET
//
// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the
// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant.
// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not
// simultaneously enabling "-mstackrealign".
//
// See https://github.com/nothings/stb/issues/81 for more information.
//
// So default to no SSE2 on 32-bit MinGW. If you've read this far and added
// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2.
#define STBI_NO_SIMD
#endif
#if !defined(STBI_NO_SIMD) && defined(STBI__X86_TARGET)
#define STBI_SSE2
#include <emmintrin.h>
#ifdef _MSC_VER
#if _MSC_VER >= 1400 // not VC6
#include <intrin.h> // __cpuid
static int stbi__cpuid3(void)
{
int info[4];
__cpuid(info,1);
return info[3];
}
#else
static int stbi__cpuid3(void)
{
int res;
__asm {
mov eax,1
cpuid
mov res,edx
}
return res;
}
#endif
#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name
static int stbi__sse2_available()
{
int info3 = stbi__cpuid3();
return ((info3 >> 26) & 1) != 0;
}
#else // assume GCC-style if not VC++
#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))
static int stbi__sse2_available()
{
#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 // GCC 4.8 or later
// GCC 4.8+ has a nice way to do this
return __builtin_cpu_supports("sse2");
#else
// portable way to do this, preferably without using GCC inline ASM?
// just bail for now.
return 0;
#endif
}
#endif
#endif
// ARM NEON
#if defined(STBI_NO_SIMD) && defined(STBI_NEON)
#undef STBI_NEON
#endif
#ifdef STBI_NEON
#include <arm_neon.h>
// assume GCC or Clang on ARM targets
#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))
#endif
#ifndef STBI_SIMD_ALIGN
#define STBI_SIMD_ALIGN(type, name) type name
#endif
///////////////////////////////////////////////
//
// stbi__context struct and start_xxx functions
// stbi__context structure is our basic context used by all images, so it
// contains all the IO context, plus some basic image information
typedef struct
{
stbi__uint32 img_x, img_y;
int img_n, img_out_n;
stbi_io_callbacks io;
void *io_user_data;
int read_from_callbacks;
int buflen;
stbi_uc buffer_start[128];
stbi_uc *img_buffer, *img_buffer_end;
stbi_uc *img_buffer_original, *img_buffer_original_end;
} stbi__context;
static void stbi__refill_buffer(stbi__context *s);
// initialize a memory-decode context
static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len)
{
s->io.read = NULL;
s->read_from_callbacks = 0;
s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer;
s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len;
}
// initialize a callback-based context
static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user)
{
s->io = *c;
s->io_user_data = user;
s->buflen = sizeof(s->buffer_start);
s->read_from_callbacks = 1;
s->img_buffer_original = s->buffer_start;
stbi__refill_buffer(s);
s->img_buffer_original_end = s->img_buffer_end;
}
#ifndef STBI_NO_STDIO
static int stbi__stdio_read(void *user, char *data, int size)
{
return (int) fread(data,1,size,(FILE*) user);
}
static void stbi__stdio_skip(void *user, int n)
{
fseek((FILE*) user, n, SEEK_CUR);
}
static int stbi__stdio_eof(void *user)
{
return feof((FILE*) user);
}
static stbi_io_callbacks stbi__stdio_callbacks =
{
stbi__stdio_read,
stbi__stdio_skip,
stbi__stdio_eof,
};
static void stbi__start_file(stbi__context *s, FILE *f)
{
stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f);
}
//static void stop_file(stbi__context *s) { }
#endif // !STBI_NO_STDIO
static void stbi__rewind(stbi__context *s)
{
// conceptually rewind SHOULD rewind to the beginning of the stream,
// but we just rewind to the beginning of the initial buffer, because
// we only use it after doing 'test', which only ever looks at at most 92 bytes
s->img_buffer = s->img_buffer_original;
s->img_buffer_end = s->img_buffer_original_end;
}
#ifndef STBI_NO_JPEG
static int stbi__jpeg_test(stbi__context *s);
static stbi_uc *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_PNG
static int stbi__png_test(stbi__context *s);
static stbi_uc *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_BMP
static int stbi__bmp_test(stbi__context *s);
static stbi_uc *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_TGA
static int stbi__tga_test(stbi__context *s);
static stbi_uc *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_PSD
static int stbi__psd_test(stbi__context *s);
static stbi_uc *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_HDR
static int stbi__hdr_test(stbi__context *s);
static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_PIC
static int stbi__pic_test(stbi__context *s);
static stbi_uc *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_GIF
static int stbi__gif_test(stbi__context *s);
static stbi_uc *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp);
#endif
#ifndef STBI_NO_PNM
static int stbi__pnm_test(stbi__context *s);
static stbi_uc *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp);
#endif
// this is not threadsafe
static const char *stbi__g_failure_reason;
STBIDEF const char *stbi_failure_reason(void)
{
return stbi__g_failure_reason;
}
static int stbi__err(const char *str)
{
stbi__g_failure_reason = str;
return 0;
}
static void *stbi__malloc(size_t size)
{
return STBI_MALLOC(size);
}
// stbi__err - error
// stbi__errpf - error returning pointer to float
// stbi__errpuc - error returning pointer to unsigned char
#ifdef STBI_NO_FAILURE_STRINGS
#define stbi__err(x,y) 0
#elif defined(STBI_FAILURE_USERMSG)
#define stbi__err(x,y) stbi__err(y)
#else
#define stbi__err(x,y) stbi__err(x)
#endif
#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL))
#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL))
STBIDEF void stbi_image_free(void *retval_from_stbi_load)
{
STBI_FREE(retval_from_stbi_load);
}
#ifndef STBI_NO_LINEAR
static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp);
#endif
#ifndef STBI_NO_HDR
static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp);
#endif
static int stbi__vertically_flip_on_load = 0;
STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
{
stbi__vertically_flip_on_load = flag_true_if_should_flip;
}
static unsigned char *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
#ifndef STBI_NO_JPEG
if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp);
#endif
#ifndef STBI_NO_PNG
if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp);
#endif
#ifndef STBI_NO_BMP
if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp);
#endif
#ifndef STBI_NO_GIF
if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp);
#endif
#ifndef STBI_NO_PSD
if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp);
#endif
#ifndef STBI_NO_PIC
if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp);
#endif
#ifndef STBI_NO_PNM
if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp);
#endif
#ifndef STBI_NO_HDR
if (stbi__hdr_test(s)) {
float *hdr = stbi__hdr_load(s, x,y,comp,req_comp);
return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp);
}
#endif
#ifndef STBI_NO_TGA
// test tga last because it's a crappy test!
if (stbi__tga_test(s))
return stbi__tga_load(s,x,y,comp,req_comp);
#endif
return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt");
}
static unsigned char *stbi__load_flip(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
unsigned char *result = stbi__load_main(s, x, y, comp, req_comp);
if (stbi__vertically_flip_on_load && result != NULL) {
int w = *x, h = *y;
int depth = req_comp ? req_comp : *comp;
int row,col,z;
stbi_uc temp;
// @OPTIMIZE: use a bigger temp buffer and memcpy multiple pixels at once
for (row = 0; row < (h>>1); row++) {
for (col = 0; col < w; col++) {
for (z = 0; z < depth; z++) {
temp = result[(row * w + col) * depth + z];
result[(row * w + col) * depth + z] = result[((h - row - 1) * w + col) * depth + z];
result[((h - row - 1) * w + col) * depth + z] = temp;
}
}
}
}
return result;
}
#ifndef STBI_NO_HDR
static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp)
{
if (stbi__vertically_flip_on_load && result != NULL) {
int w = *x, h = *y;
int depth = req_comp ? req_comp : *comp;
int row,col,z;
float temp;
// @OPTIMIZE: use a bigger temp buffer and memcpy multiple pixels at once
for (row = 0; row < (h>>1); row++) {
for (col = 0; col < w; col++) {
for (z = 0; z < depth; z++) {
temp = result[(row * w + col) * depth + z];
result[(row * w + col) * depth + z] = result[((h - row - 1) * w + col) * depth + z];
result[((h - row - 1) * w + col) * depth + z] = temp;
}
}
}
}
}
#endif
#ifndef STBI_NO_STDIO
static FILE *stbi__fopen(char const *filename, char const *mode)
{
FILE *f;
#if defined(_MSC_VER) && _MSC_VER >= 1400
if (0 != fopen_s(&f, filename, mode))
f=0;
#else
f = fopen(filename, mode);
#endif
return f;
}
STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp)
{
FILE *f = stbi__fopen(filename, "rb");
unsigned char *result;
if (!f) return stbi__errpuc("can't fopen", "Unable to open file");
result = stbi_load_from_file(f,x,y,comp,req_comp);
fclose(f);
return result;
}
STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp)
{
unsigned char *result;
stbi__context s;
stbi__start_file(&s,f);
result = stbi__load_flip(&s,x,y,comp,req_comp);
if (result) {
// need to 'unget' all the characters in the IO buffer
fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR);
}
return result;
}
#endif //!STBI_NO_STDIO
STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
{
stbi__context s;
stbi__start_mem(&s,buffer,len);
return stbi__load_flip(&s,x,y,comp,req_comp);
}
STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
{
stbi__context s;
stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user);
return stbi__load_flip(&s,x,y,comp,req_comp);
}
#ifndef STBI_NO_LINEAR
static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
unsigned char *data;
#ifndef STBI_NO_HDR
if (stbi__hdr_test(s)) {
float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp);
if (hdr_data)
stbi__float_postprocess(hdr_data,x,y,comp,req_comp);
return hdr_data;
}
#endif
data = stbi__load_flip(s, x, y, comp, req_comp);
if (data)
return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp);
return stbi__errpf("unknown image type", "Image not of any known type, or corrupt");
}
STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
{
stbi__context s;
stbi__start_mem(&s,buffer,len);
return stbi__loadf_main(&s,x,y,comp,req_comp);
}
STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
{
stbi__context s;
stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user);
return stbi__loadf_main(&s,x,y,comp,req_comp);
}
#ifndef STBI_NO_STDIO
STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
{
float *result;
FILE *f = stbi__fopen(filename, "rb");
if (!f) return stbi__errpf("can't fopen", "Unable to open file");
result = stbi_loadf_from_file(f,x,y,comp,req_comp);
fclose(f);
return result;
}
STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp)
{
stbi__context s;
stbi__start_file(&s,f);
return stbi__loadf_main(&s,x,y,comp,req_comp);
}
#endif // !STBI_NO_STDIO
#endif // !STBI_NO_LINEAR
// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is
// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always
// reports false!
STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
{
#ifndef STBI_NO_HDR
stbi__context s;
stbi__start_mem(&s,buffer,len);
return stbi__hdr_test(&s);
#else
STBI_NOTUSED(buffer);
STBI_NOTUSED(len);
return 0;
#endif
}
#ifndef STBI_NO_STDIO
STBIDEF int stbi_is_hdr (char const *filename)
{
FILE *f = stbi__fopen(filename, "rb");
int result=0;
if (f) {
result = stbi_is_hdr_from_file(f);
fclose(f);
}
return result;
}
STBIDEF int stbi_is_hdr_from_file(FILE *f)
{
#ifndef STBI_NO_HDR
stbi__context s;
stbi__start_file(&s,f);
return stbi__hdr_test(&s);
#else
STBI_NOTUSED(f);
return 0;
#endif
}
#endif // !STBI_NO_STDIO
STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
{
#ifndef STBI_NO_HDR
stbi__context s;
stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user);
return stbi__hdr_test(&s);
#else
STBI_NOTUSED(clbk);
STBI_NOTUSED(user);
return 0;
#endif
}
#ifndef STBI_NO_LINEAR
static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f;
STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
#endif
static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f;
STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
//////////////////////////////////////////////////////////////////////////////
//
// Common code used by all image loaders
//
enum
{
STBI__SCAN_load=0,
STBI__SCAN_type,
STBI__SCAN_header
};
static void stbi__refill_buffer(stbi__context *s)
{
int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen);
if (n == 0) {
// at end of file, treat same as if from memory, but need to handle case
// where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file
s->read_from_callbacks = 0;
s->img_buffer = s->buffer_start;
s->img_buffer_end = s->buffer_start+1;
*s->img_buffer = 0;
} else {
s->img_buffer = s->buffer_start;
s->img_buffer_end = s->buffer_start + n;
}
}
stbi_inline static stbi_uc stbi__get8(stbi__context *s)
{
if (s->img_buffer < s->img_buffer_end)
return *s->img_buffer++;
if (s->read_from_callbacks) {
stbi__refill_buffer(s);
return *s->img_buffer++;
}
return 0;
}
stbi_inline static int stbi__at_eof(stbi__context *s)
{
if (s->io.read) {
if (!(s->io.eof)(s->io_user_data)) return 0;
// if feof() is true, check if buffer = end
// special case: we've only got the special 0 character at the end
if (s->read_from_callbacks == 0) return 1;
}
return s->img_buffer >= s->img_buffer_end;
}
static void stbi__skip(stbi__context *s, int n)
{
if (n < 0) {
s->img_buffer = s->img_buffer_end;
return;
}
if (s->io.read) {
int blen = (int) (s->img_buffer_end - s->img_buffer);
if (blen < n) {
s->img_buffer = s->img_buffer_end;
(s->io.skip)(s->io_user_data, n - blen);
return;
}
}
s->img_buffer += n;
}
static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n)
{
if (s->io.read) {
int blen = (int) (s->img_buffer_end - s->img_buffer);
if (blen < n) {
int res, count;
memcpy(buffer, s->img_buffer, blen);
count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen);
res = (count == (n-blen));
s->img_buffer = s->img_buffer_end;
return res;
}
}
if (s->img_buffer+n <= s->img_buffer_end) {
memcpy(buffer, s->img_buffer, n);
s->img_buffer += n;
return 1;
} else
return 0;
}
static int stbi__get16be(stbi__context *s)
{
int z = stbi__get8(s);
return (z << 8) + stbi__get8(s);
}
static stbi__uint32 stbi__get32be(stbi__context *s)
{
stbi__uint32 z = stbi__get16be(s);
return (z << 16) + stbi__get16be(s);
}
#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF)
// nothing
#else
static int stbi__get16le(stbi__context *s)
{
int z = stbi__get8(s);
return z + (stbi__get8(s) << 8);
}
#endif
#ifndef STBI_NO_BMP
static stbi__uint32 stbi__get32le(stbi__context *s)
{
stbi__uint32 z = stbi__get16le(s);
return z + (stbi__get16le(s) << 16);
}
#endif
#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings
//////////////////////////////////////////////////////////////////////////////
//
// generic converter from built-in img_n to req_comp
// individual types do this automatically as much as possible (e.g. jpeg
// does all cases internally since it needs to colorspace convert anyway,
// and it never has alpha, so very few cases ). png can automatically
// interleave an alpha=255 channel, but falls back to this for other cases
//
// assume data buffer is malloced, so malloc a new one and free that one
// only failure mode is malloc failing
static stbi_uc stbi__compute_y(int r, int g, int b)
{
return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8);
}
static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y)
{
int i,j;
unsigned char *good;
if (req_comp == img_n) return data;
STBI_ASSERT(req_comp >= 1 && req_comp <= 4);
good = (unsigned char *) stbi__malloc(req_comp * x * y);
if (good == NULL) {
STBI_FREE(data);
return stbi__errpuc("outofmem", "Out of memory");
}
for (j=0; j < (int) y; ++j) {
unsigned char *src = data + j * x * img_n ;
unsigned char *dest = good + j * x * req_comp;
#define COMBO(a,b) ((a)*8+(b))
#define CASE(a,b) case COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b)
// convert source image with img_n components to one with req_comp components;
// avoid switch per pixel, so use switch per scanline and massive macros
switch (COMBO(img_n, req_comp)) {
CASE(1,2) dest[0]=src[0], dest[1]=255; break;
CASE(1,3) dest[0]=dest[1]=dest[2]=src[0]; break;
CASE(1,4) dest[0]=dest[1]=dest[2]=src[0], dest[3]=255; break;
CASE(2,1) dest[0]=src[0]; break;
CASE(2,3) dest[0]=dest[1]=dest[2]=src[0]; break;
CASE(2,4) dest[0]=dest[1]=dest[2]=src[0], dest[3]=src[1]; break;
CASE(3,4) dest[0]=src[0],dest[1]=src[1],dest[2]=src[2],dest[3]=255; break;
CASE(3,1) dest[0]=stbi__compute_y(src[0],src[1],src[2]); break;
CASE(3,2) dest[0]=stbi__compute_y(src[0],src[1],src[2]), dest[1] = 255; break;
CASE(4,1) dest[0]=stbi__compute_y(src[0],src[1],src[2]); break;
CASE(4,2) dest[0]=stbi__compute_y(src[0],src[1],src[2]), dest[1] = src[3]; break;
CASE(4,3) dest[0]=src[0],dest[1]=src[1],dest[2]=src[2]; break;
default: STBI_ASSERT(0);
}
#undef CASE
}
STBI_FREE(data);
return good;
}
#ifndef STBI_NO_LINEAR
static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp)
{
int i,k,n;
float *output = (float *) stbi__malloc(x * y * comp * sizeof(float));
if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); }
// compute number of non-alpha components
if (comp & 1) n = comp; else n = comp-1;
for (i=0; i < x*y; ++i) {
for (k=0; k < n; ++k) {
output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale);
}
if (k < comp) output[i*comp + k] = data[i*comp+k]/255.0f;
}
STBI_FREE(data);
return output;
}
#endif
#ifndef STBI_NO_HDR
#define stbi__float2int(x) ((int) (x))
static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp)
{
int i,k,n;
stbi_uc *output = (stbi_uc *) stbi__malloc(x * y * comp);
if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); }
// compute number of non-alpha components
if (comp & 1) n = comp; else n = comp-1;
for (i=0; i < x*y; ++i) {
for (k=0; k < n; ++k) {
float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f;
if (z < 0) z = 0;
if (z > 255) z = 255;
output[i*comp + k] = (stbi_uc) stbi__float2int(z);
}
if (k < comp) {
float z = data[i*comp+k] * 255 + 0.5f;
if (z < 0) z = 0;
if (z > 255) z = 255;
output[i*comp + k] = (stbi_uc) stbi__float2int(z);
}
}
STBI_FREE(data);
return output;
}
#endif
//////////////////////////////////////////////////////////////////////////////
//
// "baseline" JPEG/JFIF decoder
//
// simple implementation
// - doesn't support delayed output of y-dimension
// - simple interface (only one output format: 8-bit interleaved RGB)
// - doesn't try to recover corrupt jpegs
// - doesn't allow partial loading, loading multiple at once
// - still fast on x86 (copying globals into locals doesn't help x86)
// - allocates lots of intermediate memory (full size of all components)
// - non-interleaved case requires this anyway
// - allows good upsampling (see next)
// high-quality
// - upsampled channels are bilinearly interpolated, even across blocks
// - quality integer IDCT derived from IJG's 'slow'
// performance
// - fast huffman; reasonable integer IDCT
// - some SIMD kernels for common paths on targets with SSE2/NEON
// - uses a lot of intermediate memory, could cache poorly
#ifndef STBI_NO_JPEG
// huffman decoding acceleration
#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache
typedef struct
{
stbi_uc fast[1 << FAST_BITS];
// weirdly, repacking this into AoS is a 10% speed loss, instead of a win
stbi__uint16 code[256];
stbi_uc values[256];
stbi_uc size[257];
unsigned int maxcode[18];
int delta[17]; // old 'firstsymbol' - old 'firstcode'
} stbi__huffman;
typedef struct
{
stbi__context *s;
stbi__huffman huff_dc[4];
stbi__huffman huff_ac[4];
stbi_uc dequant[4][64];
stbi__int16 fast_ac[4][1 << FAST_BITS];
// sizes for components, interleaved MCUs
int img_h_max, img_v_max;
int img_mcu_x, img_mcu_y;
int img_mcu_w, img_mcu_h;
// definition of jpeg image component
struct
{
int id;
int h,v;
int tq;
int hd,ha;
int dc_pred;
int x,y,w2,h2;
stbi_uc *data;
void *raw_data, *raw_coeff;
stbi_uc *linebuf;
short *coeff; // progressive only
int coeff_w, coeff_h; // number of 8x8 coefficient blocks
} img_comp[4];
stbi__uint32 code_buffer; // jpeg entropy-coded buffer
int code_bits; // number of valid bits
unsigned char marker; // marker seen while filling entropy buffer
int nomore; // flag if we saw a marker so must stop
int progressive;
int spec_start;
int spec_end;
int succ_high;
int succ_low;
int eob_run;
int scan_n, order[4];
int restart_interval, todo;
// kernels
void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]);
void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step);
stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs);
} stbi__jpeg;
static int stbi__build_huffman(stbi__huffman *h, int *count)
{
int i,j,k=0,code;
// build size list for each symbol (from JPEG spec)
for (i=0; i < 16; ++i)
for (j=0; j < count[i]; ++j)
h->size[k++] = (stbi_uc) (i+1);
h->size[k] = 0;
// compute actual symbols (from jpeg spec)
code = 0;
k = 0;
for(j=1; j <= 16; ++j) {
// compute delta to add to code to compute symbol id
h->delta[j] = k - code;
if (h->size[k] == j) {
while (h->size[k] == j)
h->code[k++] = (stbi__uint16) (code++);
if (code-1 >= (1 << j)) return stbi__err("bad code lengths","Corrupt JPEG");
}
// compute largest code + 1 for this size, preshifted as needed later
h->maxcode[j] = code << (16-j);
code <<= 1;
}
h->maxcode[j] = 0xffffffff;
// build non-spec acceleration table; 255 is flag for not-accelerated
memset(h->fast, 255, 1 << FAST_BITS);
for (i=0; i < k; ++i) {
int s = h->size[i];
if (s <= FAST_BITS) {
int c = h->code[i] << (FAST_BITS-s);
int m = 1 << (FAST_BITS-s);
for (j=0; j < m; ++j) {
h->fast[c+j] = (stbi_uc) i;
}
}
}
return 1;
}
// build a table that decodes both magnitude and value of small ACs in
// one go.
static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h)
{
int i;
for (i=0; i < (1 << FAST_BITS); ++i) {
stbi_uc fast = h->fast[i];
fast_ac[i] = 0;
if (fast < 255) {
int rs = h->values[fast];
int run = (rs >> 4) & 15;
int magbits = rs & 15;
int len = h->size[fast];
if (magbits && len + magbits <= FAST_BITS) {
// magnitude code followed by receive_extend code
int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits);
int m = 1 << (magbits - 1);
if (k < m) k += (-1 << magbits) + 1;
// if the result is small enough, we can fit it in fast_ac table
if (k >= -128 && k <= 127)
fast_ac[i] = (stbi__int16) ((k << 8) + (run << 4) + (len + magbits));
}
}
}
}
static void stbi__grow_buffer_unsafe(stbi__jpeg *j)
{
do {
int b = j->nomore ? 0 : stbi__get8(j->s);
if (b == 0xff) {
int c = stbi__get8(j->s);
if (c != 0) {
j->marker = (unsigned char) c;
j->nomore = 1;
return;
}
}
j->code_buffer |= b << (24 - j->code_bits);
j->code_bits += 8;
} while (j->code_bits <= 24);
}
// (1 << n) - 1
static stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535};
// decode a jpeg huffman value from the bitstream
stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h)
{
unsigned int temp;
int c,k;
if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
// look at the top FAST_BITS and determine what symbol ID it is,
// if the code is <= FAST_BITS
c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1);
k = h->fast[c];
if (k < 255) {
int s = h->size[k];
if (s > j->code_bits)
return -1;
j->code_buffer <<= s;
j->code_bits -= s;
return h->values[k];
}
// naive test is to shift the code_buffer down so k bits are
// valid, then test against maxcode. To speed this up, we've
// preshifted maxcode left so that it has (16-k) 0s at the
// end; in other words, regardless of the number of bits, it
// wants to be compared against something shifted to have 16;
// that way we don't need to shift inside the loop.
temp = j->code_buffer >> 16;
for (k=FAST_BITS+1 ; ; ++k)
if (temp < h->maxcode[k])
break;
if (k == 17) {
// error! code not found
j->code_bits -= 16;
return -1;
}
if (k > j->code_bits)
return -1;
// convert the huffman code to the symbol id
c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k];
STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]);
// convert the id to a symbol
j->code_bits -= k;
j->code_buffer <<= k;
return h->values[c];
}
// bias[n] = (-1<<n) + 1
static int const stbi__jbias[16] = {0,-1,-3,-7,-15,-31,-63,-127,-255,-511,-1023,-2047,-4095,-8191,-16383,-32767};
// combined JPEG 'receive' and JPEG 'extend', since baseline
// always extends everything it receives.
stbi_inline static int stbi__extend_receive(stbi__jpeg *j, int n)
{
unsigned int k;
int sgn;
if (j->code_bits < n) stbi__grow_buffer_unsafe(j);
sgn = (stbi__int32)j->code_buffer >> 31; // sign bit is always in MSB
k = stbi_lrot(j->code_buffer, n);
STBI_ASSERT(n >= 0 && n < (int) (sizeof(stbi__bmask)/sizeof(*stbi__bmask)));
j->code_buffer = k & ~stbi__bmask[n];
k &= stbi__bmask[n];
j->code_bits -= n;
return k + (stbi__jbias[n] & ~sgn);
}
// get some unsigned bits
stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n)
{
unsigned int k;
if (j->code_bits < n) stbi__grow_buffer_unsafe(j);
k = stbi_lrot(j->code_buffer, n);
j->code_buffer = k & ~stbi__bmask[n];
k &= stbi__bmask[n];
j->code_bits -= n;
return k;
}
stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j)
{
unsigned int k;
if (j->code_bits < 1) stbi__grow_buffer_unsafe(j);
k = j->code_buffer;
j->code_buffer <<= 1;
--j->code_bits;
return k & 0x80000000;
}
// given a value that's at position X in the zigzag stream,
// where does it appear in the 8x8 matrix coded as row-major?
static stbi_uc stbi__jpeg_dezigzag[64+15] =
{
0, 1, 8, 16, 9, 2, 3, 10,
17, 24, 32, 25, 18, 11, 4, 5,
12, 19, 26, 33, 40, 48, 41, 34,
27, 20, 13, 6, 7, 14, 21, 28,
35, 42, 49, 56, 57, 50, 43, 36,
29, 22, 15, 23, 30, 37, 44, 51,
58, 59, 52, 45, 38, 31, 39, 46,
53, 60, 61, 54, 47, 55, 62, 63,
// let corrupt input sample past end
63, 63, 63, 63, 63, 63, 63, 63,
63, 63, 63, 63, 63, 63, 63
};
// decode one 64-entry block--
static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi_uc *dequant)
{
int diff,dc,k;
int t;
if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
t = stbi__jpeg_huff_decode(j, hdc);
if (t < 0) return stbi__err("bad huffman code","Corrupt JPEG");
// 0 all the ac values now so we can do it 32-bits at a time
memset(data,0,64*sizeof(data[0]));
diff = t ? stbi__extend_receive(j, t) : 0;
dc = j->img_comp[b].dc_pred + diff;
j->img_comp[b].dc_pred = dc;
data[0] = (short) (dc * dequant[0]);
// decode AC components, see JPEG spec
k = 1;
do {
unsigned int zig;
int c,r,s;
if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1);
r = fac[c];
if (r) { // fast-AC path
k += (r >> 4) & 15; // run
s = r & 15; // combined length
j->code_buffer <<= s;
j->code_bits -= s;
// decode into unzigzag'd location
zig = stbi__jpeg_dezigzag[k++];
data[zig] = (short) ((r >> 8) * dequant[zig]);
} else {
int rs = stbi__jpeg_huff_decode(j, hac);
if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG");
s = rs & 15;
r = rs >> 4;
if (s == 0) {
if (rs != 0xf0) break; // end block
k += 16;
} else {
k += r;
// decode into unzigzag'd location
zig = stbi__jpeg_dezigzag[k++];
data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]);
}
}
} while (k < 64);
return 1;
}
static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b)
{
int diff,dc;
int t;
if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG");
if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
if (j->succ_high == 0) {
// first scan for DC coefficient, must be first
memset(data,0,64*sizeof(data[0])); // 0 all the ac values now
t = stbi__jpeg_huff_decode(j, hdc);
diff = t ? stbi__extend_receive(j, t) : 0;
dc = j->img_comp[b].dc_pred + diff;
j->img_comp[b].dc_pred = dc;
data[0] = (short) (dc << j->succ_low);
} else {
// refinement scan for DC coefficient
if (stbi__jpeg_get_bit(j))
data[0] += (short) (1 << j->succ_low);
}
return 1;
}
// @OPTIMIZE: store non-zigzagged during the decode passes,
// and only de-zigzag when dequantizing
static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac)
{
int k;
if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG");
if (j->succ_high == 0) {
int shift = j->succ_low;
if (j->eob_run) {
--j->eob_run;
return 1;
}
k = j->spec_start;
do {
unsigned int zig;
int c,r,s;
if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1);
r = fac[c];
if (r) { // fast-AC path
k += (r >> 4) & 15; // run
s = r & 15; // combined length
j->code_buffer <<= s;
j->code_bits -= s;
zig = stbi__jpeg_dezigzag[k++];
data[zig] = (short) ((r >> 8) << shift);
} else {
int rs = stbi__jpeg_huff_decode(j, hac);
if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG");
s = rs & 15;
r = rs >> 4;
if (s == 0) {
if (r < 15) {
j->eob_run = (1 << r);
if (r)
j->eob_run += stbi__jpeg_get_bits(j, r);
--j->eob_run;
break;
}
k += 16;
} else {
k += r;
zig = stbi__jpeg_dezigzag[k++];
data[zig] = (short) (stbi__extend_receive(j,s) << shift);
}
}
} while (k <= j->spec_end);
} else {
// refinement scan for these AC coefficients
short bit = (short) (1 << j->succ_low);
if (j->eob_run) {
--j->eob_run;
for (k = j->spec_start; k <= j->spec_end; ++k) {
short *p = &data[stbi__jpeg_dezigzag[k]];
if (*p != 0)
if (stbi__jpeg_get_bit(j))
if ((*p & bit)==0) {
if (*p > 0)
*p += bit;
else
*p -= bit;
}
}
} else {
k = j->spec_start;
do {
int r,s;
int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh
if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG");
s = rs & 15;
r = rs >> 4;
if (s == 0) {
if (r < 15) {
j->eob_run = (1 << r) - 1;
if (r)
j->eob_run += stbi__jpeg_get_bits(j, r);
r = 64; // force end of block
} else {
// r=15 s=0 should write 16 0s, so we just do
// a run of 15 0s and then write s (which is 0),
// so we don't have to do anything special here
}
} else {
if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG");
// sign bit
if (stbi__jpeg_get_bit(j))
s = bit;
else
s = -bit;
}
// advance by r
while (k <= j->spec_end) {
short *p = &data[stbi__jpeg_dezigzag[k++]];
if (*p != 0) {
if (stbi__jpeg_get_bit(j))
if ((*p & bit)==0) {
if (*p > 0)
*p += bit;
else
*p -= bit;
}
} else {
if (r == 0) {
*p = (short) s;
break;
}
--r;
}
}
} while (k <= j->spec_end);
}
}
return 1;
}
// take a -128..127 value and stbi__clamp it and convert to 0..255
stbi_inline static stbi_uc stbi__clamp(int x)
{
// trick to use a single test to catch both cases
if ((unsigned int) x > 255) {
if (x < 0) return 0;
if (x > 255) return 255;
}
return (stbi_uc) x;
}
#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5)))
#define stbi__fsh(x) ((x) << 12)
// derived from jidctint -- DCT_ISLOW
#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \
int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \
p2 = s2; \
p3 = s6; \
p1 = (p2+p3) * stbi__f2f(0.5411961f); \
t2 = p1 + p3*stbi__f2f(-1.847759065f); \
t3 = p1 + p2*stbi__f2f( 0.765366865f); \
p2 = s0; \
p3 = s4; \
t0 = stbi__fsh(p2+p3); \
t1 = stbi__fsh(p2-p3); \
x0 = t0+t3; \
x3 = t0-t3; \
x1 = t1+t2; \
x2 = t1-t2; \
t0 = s7; \
t1 = s5; \
t2 = s3; \
t3 = s1; \
p3 = t0+t2; \
p4 = t1+t3; \
p1 = t0+t3; \
p2 = t1+t2; \
p5 = (p3+p4)*stbi__f2f( 1.175875602f); \
t0 = t0*stbi__f2f( 0.298631336f); \
t1 = t1*stbi__f2f( 2.053119869f); \
t2 = t2*stbi__f2f( 3.072711026f); \
t3 = t3*stbi__f2f( 1.501321110f); \
p1 = p5 + p1*stbi__f2f(-0.899976223f); \
p2 = p5 + p2*stbi__f2f(-2.562915447f); \
p3 = p3*stbi__f2f(-1.961570560f); \
p4 = p4*stbi__f2f(-0.390180644f); \
t3 += p1+p4; \
t2 += p2+p3; \
t1 += p2+p4; \
t0 += p1+p3;
static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64])
{
int i,val[64],*v=val;
stbi_uc *o;
short *d = data;
// columns
for (i=0; i < 8; ++i,++d, ++v) {
// if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing
if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0
&& d[40]==0 && d[48]==0 && d[56]==0) {
// no shortcut 0 seconds
// (1|2|3|4|5|6|7)==0 0 seconds
// all separate -0.047 seconds
// 1 && 2|3 && 4|5 && 6|7: -0.047 seconds
int dcterm = d[0] << 2;
v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm;
} else {
STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56])
// constants scaled things up by 1<<12; let's bring them back
// down, but keep 2 extra bits of precision
x0 += 512; x1 += 512; x2 += 512; x3 += 512;
v[ 0] = (x0+t3) >> 10;
v[56] = (x0-t3) >> 10;
v[ 8] = (x1+t2) >> 10;
v[48] = (x1-t2) >> 10;
v[16] = (x2+t1) >> 10;
v[40] = (x2-t1) >> 10;
v[24] = (x3+t0) >> 10;
v[32] = (x3-t0) >> 10;
}
}
for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) {
// no fast case since the first 1D IDCT spread components out
STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7])
// constants scaled things up by 1<<12, plus we had 1<<2 from first
// loop, plus horizontal and vertical each scale by sqrt(8) so together
// we've got an extra 1<<3, so 1<<17 total we need to remove.
// so we want to round that, which means adding 0.5 * 1<<17,
// aka 65536. Also, we'll end up with -128 to 127 that we want
// to encode as 0..255 by adding 128, so we'll add that before the shift
x0 += 65536 + (128<<17);
x1 += 65536 + (128<<17);
x2 += 65536 + (128<<17);
x3 += 65536 + (128<<17);
// tried computing the shifts into temps, or'ing the temps to see
// if any were out of range, but that was slower
o[0] = stbi__clamp((x0+t3) >> 17);
o[7] = stbi__clamp((x0-t3) >> 17);
o[1] = stbi__clamp((x1+t2) >> 17);
o[6] = stbi__clamp((x1-t2) >> 17);
o[2] = stbi__clamp((x2+t1) >> 17);
o[5] = stbi__clamp((x2-t1) >> 17);
o[3] = stbi__clamp((x3+t0) >> 17);
o[4] = stbi__clamp((x3-t0) >> 17);
}
}
#ifdef STBI_SSE2
// sse2 integer IDCT. not the fastest possible implementation but it
// produces bit-identical results to the generic C version so it's
// fully "transparent".
static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64])
{
// This is constructed to match our regular (generic) integer IDCT exactly.
__m128i row0, row1, row2, row3, row4, row5, row6, row7;
__m128i tmp;
// dot product constant: even elems=x, odd elems=y
#define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y))
// out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit)
// out(1) = c1[even]*x + c1[odd]*y
#define dct_rot(out0,out1, x,y,c0,c1) \
__m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \
__m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \
__m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \
__m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \
__m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \
__m128i out1##_h = _mm_madd_epi16(c0##hi, c1)
// out = in << 12 (in 16-bit, out 32-bit)
#define dct_widen(out, in) \
__m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \
__m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4)
// wide add
#define dct_wadd(out, a, b) \
__m128i out##_l = _mm_add_epi32(a##_l, b##_l); \
__m128i out##_h = _mm_add_epi32(a##_h, b##_h)
// wide sub
#define dct_wsub(out, a, b) \
__m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \
__m128i out##_h = _mm_sub_epi32(a##_h, b##_h)
// butterfly a/b, add bias, then shift by "s" and pack
#define dct_bfly32o(out0, out1, a,b,bias,s) \
{ \
__m128i abiased_l = _mm_add_epi32(a##_l, bias); \
__m128i abiased_h = _mm_add_epi32(a##_h, bias); \
dct_wadd(sum, abiased, b); \
dct_wsub(dif, abiased, b); \
out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \
out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \
}
// 8-bit interleave step (for transposes)
#define dct_interleave8(a, b) \
tmp = a; \
a = _mm_unpacklo_epi8(a, b); \
b = _mm_unpackhi_epi8(tmp, b)
// 16-bit interleave step (for transposes)
#define dct_interleave16(a, b) \
tmp = a; \
a = _mm_unpacklo_epi16(a, b); \
b = _mm_unpackhi_epi16(tmp, b)
#define dct_pass(bias,shift) \
{ \
/* even part */ \
dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \
__m128i sum04 = _mm_add_epi16(row0, row4); \
__m128i dif04 = _mm_sub_epi16(row0, row4); \
dct_widen(t0e, sum04); \
dct_widen(t1e, dif04); \
dct_wadd(x0, t0e, t3e); \
dct_wsub(x3, t0e, t3e); \
dct_wadd(x1, t1e, t2e); \
dct_wsub(x2, t1e, t2e); \
/* odd part */ \
dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \
dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \
__m128i sum17 = _mm_add_epi16(row1, row7); \
__m128i sum35 = _mm_add_epi16(row3, row5); \
dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \
dct_wadd(x4, y0o, y4o); \
dct_wadd(x5, y1o, y5o); \
dct_wadd(x6, y2o, y5o); \
dct_wadd(x7, y3o, y4o); \
dct_bfly32o(row0,row7, x0,x7,bias,shift); \
dct_bfly32o(row1,row6, x1,x6,bias,shift); \
dct_bfly32o(row2,row5, x2,x5,bias,shift); \
dct_bfly32o(row3,row4, x3,x4,bias,shift); \
}
__m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f));
__m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f));
__m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f));
__m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f));
__m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f));
__m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f));
__m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f));
__m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f));
// rounding biases in column/row passes, see stbi__idct_block for explanation.
__m128i bias_0 = _mm_set1_epi32(512);
__m128i bias_1 = _mm_set1_epi32(65536 + (128<<17));
// load
row0 = _mm_load_si128((const __m128i *) (data + 0*8));
row1 = _mm_load_si128((const __m128i *) (data + 1*8));
row2 = _mm_load_si128((const __m128i *) (data + 2*8));
row3 = _mm_load_si128((const __m128i *) (data + 3*8));
row4 = _mm_load_si128((const __m128i *) (data + 4*8));
row5 = _mm_load_si128((const __m128i *) (data + 5*8));
row6 = _mm_load_si128((const __m128i *) (data + 6*8));
row7 = _mm_load_si128((const __m128i *) (data + 7*8));
// column pass
dct_pass(bias_0, 10);
{
// 16bit 8x8 transpose pass 1
dct_interleave16(row0, row4);
dct_interleave16(row1, row5);
dct_interleave16(row2, row6);
dct_interleave16(row3, row7);
// transpose pass 2
dct_interleave16(row0, row2);
dct_interleave16(row1, row3);
dct_interleave16(row4, row6);
dct_interleave16(row5, row7);
// transpose pass 3
dct_interleave16(row0, row1);
dct_interleave16(row2, row3);
dct_interleave16(row4, row5);
dct_interleave16(row6, row7);
}
// row pass
dct_pass(bias_1, 17);
{
// pack
__m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7
__m128i p1 = _mm_packus_epi16(row2, row3);
__m128i p2 = _mm_packus_epi16(row4, row5);
__m128i p3 = _mm_packus_epi16(row6, row7);
// 8bit 8x8 transpose pass 1
dct_interleave8(p0, p2); // a0e0a1e1...
dct_interleave8(p1, p3); // c0g0c1g1...
// transpose pass 2
dct_interleave8(p0, p1); // a0c0e0g0...
dct_interleave8(p2, p3); // b0d0f0h0...
// transpose pass 3
dct_interleave8(p0, p2); // a0b0c0d0...
dct_interleave8(p1, p3); // a4b4c4d4...
// store
_mm_storel_epi64((__m128i *) out, p0); out += out_stride;
_mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride;
_mm_storel_epi64((__m128i *) out, p2); out += out_stride;
_mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride;
_mm_storel_epi64((__m128i *) out, p1); out += out_stride;
_mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride;
_mm_storel_epi64((__m128i *) out, p3); out += out_stride;
_mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e));
}
#undef dct_const
#undef dct_rot
#undef dct_widen
#undef dct_wadd
#undef dct_wsub
#undef dct_bfly32o
#undef dct_interleave8
#undef dct_interleave16
#undef dct_pass
}
#endif // STBI_SSE2
#ifdef STBI_NEON
// NEON integer IDCT. should produce bit-identical
// results to the generic C version.
static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64])
{
int16x8_t row0, row1, row2, row3, row4, row5, row6, row7;
int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f));
int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f));
int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f));
int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f));
int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f));
int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f));
int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f));
int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f));
int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f));
int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f));
int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f));
int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f));
#define dct_long_mul(out, inq, coeff) \
int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \
int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff)
#define dct_long_mac(out, acc, inq, coeff) \
int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \
int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff)
#define dct_widen(out, inq) \
int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \
int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12)
// wide add
#define dct_wadd(out, a, b) \
int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \
int32x4_t out##_h = vaddq_s32(a##_h, b##_h)
// wide sub
#define dct_wsub(out, a, b) \
int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \
int32x4_t out##_h = vsubq_s32(a##_h, b##_h)
// butterfly a/b, then shift using "shiftop" by "s" and pack
#define dct_bfly32o(out0,out1, a,b,shiftop,s) \
{ \
dct_wadd(sum, a, b); \
dct_wsub(dif, a, b); \
out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \
out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \
}
#define dct_pass(shiftop, shift) \
{ \
/* even part */ \
int16x8_t sum26 = vaddq_s16(row2, row6); \
dct_long_mul(p1e, sum26, rot0_0); \
dct_long_mac(t2e, p1e, row6, rot0_1); \
dct_long_mac(t3e, p1e, row2, rot0_2); \
int16x8_t sum04 = vaddq_s16(row0, row4); \
int16x8_t dif04 = vsubq_s16(row0, row4); \
dct_widen(t0e, sum04); \
dct_widen(t1e, dif04); \
dct_wadd(x0, t0e, t3e); \
dct_wsub(x3, t0e, t3e); \
dct_wadd(x1, t1e, t2e); \
dct_wsub(x2, t1e, t2e); \
/* odd part */ \
int16x8_t sum15 = vaddq_s16(row1, row5); \
int16x8_t sum17 = vaddq_s16(row1, row7); \
int16x8_t sum35 = vaddq_s16(row3, row5); \
int16x8_t sum37 = vaddq_s16(row3, row7); \
int16x8_t sumodd = vaddq_s16(sum17, sum35); \
dct_long_mul(p5o, sumodd, rot1_0); \
dct_long_mac(p1o, p5o, sum17, rot1_1); \
dct_long_mac(p2o, p5o, sum35, rot1_2); \
dct_long_mul(p3o, sum37, rot2_0); \
dct_long_mul(p4o, sum15, rot2_1); \
dct_wadd(sump13o, p1o, p3o); \
dct_wadd(sump24o, p2o, p4o); \
dct_wadd(sump23o, p2o, p3o); \
dct_wadd(sump14o, p1o, p4o); \
dct_long_mac(x4, sump13o, row7, rot3_0); \
dct_long_mac(x5, sump24o, row5, rot3_1); \
dct_long_mac(x6, sump23o, row3, rot3_2); \
dct_long_mac(x7, sump14o, row1, rot3_3); \
dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \
dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \
dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \
dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \
}
// load
row0 = vld1q_s16(data + 0*8);
row1 = vld1q_s16(data + 1*8);
row2 = vld1q_s16(data + 2*8);
row3 = vld1q_s16(data + 3*8);
row4 = vld1q_s16(data + 4*8);
row5 = vld1q_s16(data + 5*8);
row6 = vld1q_s16(data + 6*8);
row7 = vld1q_s16(data + 7*8);
// add DC bias
row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0));
// column pass
dct_pass(vrshrn_n_s32, 10);
// 16bit 8x8 transpose
{
// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively.
// whether compilers actually get this is another story, sadly.
#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; }
#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); }
#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); }
// pass 1
dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6
dct_trn16(row2, row3);
dct_trn16(row4, row5);
dct_trn16(row6, row7);
// pass 2
dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4
dct_trn32(row1, row3);
dct_trn32(row4, row6);
dct_trn32(row5, row7);
// pass 3
dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0
dct_trn64(row1, row5);
dct_trn64(row2, row6);
dct_trn64(row3, row7);
#undef dct_trn16
#undef dct_trn32
#undef dct_trn64
}
// row pass
// vrshrn_n_s32 only supports shifts up to 16, we need
// 17. so do a non-rounding shift of 16 first then follow
// up with a rounding shift by 1.
dct_pass(vshrn_n_s32, 16);
{
// pack and round
uint8x8_t p0 = vqrshrun_n_s16(row0, 1);
uint8x8_t p1 = vqrshrun_n_s16(row1, 1);
uint8x8_t p2 = vqrshrun_n_s16(row2, 1);
uint8x8_t p3 = vqrshrun_n_s16(row3, 1);
uint8x8_t p4 = vqrshrun_n_s16(row4, 1);
uint8x8_t p5 = vqrshrun_n_s16(row5, 1);
uint8x8_t p6 = vqrshrun_n_s16(row6, 1);
uint8x8_t p7 = vqrshrun_n_s16(row7, 1);
// again, these can translate into one instruction, but often don't.
#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; }
#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); }
#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); }
// sadly can't use interleaved stores here since we only write
// 8 bytes to each scan line!
// 8x8 8-bit transpose pass 1
dct_trn8_8(p0, p1);
dct_trn8_8(p2, p3);
dct_trn8_8(p4, p5);
dct_trn8_8(p6, p7);
// pass 2
dct_trn8_16(p0, p2);
dct_trn8_16(p1, p3);
dct_trn8_16(p4, p6);
dct_trn8_16(p5, p7);
// pass 3
dct_trn8_32(p0, p4);
dct_trn8_32(p1, p5);
dct_trn8_32(p2, p6);
dct_trn8_32(p3, p7);
// store
vst1_u8(out, p0); out += out_stride;
vst1_u8(out, p1); out += out_stride;
vst1_u8(out, p2); out += out_stride;
vst1_u8(out, p3); out += out_stride;
vst1_u8(out, p4); out += out_stride;
vst1_u8(out, p5); out += out_stride;
vst1_u8(out, p6); out += out_stride;
vst1_u8(out, p7);
#undef dct_trn8_8
#undef dct_trn8_16
#undef dct_trn8_32
}
#undef dct_long_mul
#undef dct_long_mac
#undef dct_widen
#undef dct_wadd
#undef dct_wsub
#undef dct_bfly32o
#undef dct_pass
}
#endif // STBI_NEON
#define STBI__MARKER_none 0xff
// if there's a pending marker from the entropy stream, return that
// otherwise, fetch from the stream and get a marker. if there's no
// marker, return 0xff, which is never a valid marker value
static stbi_uc stbi__get_marker(stbi__jpeg *j)
{
stbi_uc x;
if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; }
x = stbi__get8(j->s);
if (x != 0xff) return STBI__MARKER_none;
while (x == 0xff)
x = stbi__get8(j->s);
return x;
}
// in each scan, we'll have scan_n components, and the order
// of the components is specified by order[]
#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7)
// after a restart interval, stbi__jpeg_reset the entropy decoder and
// the dc prediction
static void stbi__jpeg_reset(stbi__jpeg *j)
{
j->code_bits = 0;
j->code_buffer = 0;
j->nomore = 0;
j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = 0;
j->marker = STBI__MARKER_none;
j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff;
j->eob_run = 0;
// no more than 1<<31 MCUs if no restart_interal? that's plenty safe,
// since we don't even allow 1<<30 pixels
}
static int stbi__parse_entropy_coded_data(stbi__jpeg *z)
{
stbi__jpeg_reset(z);
if (!z->progressive) {
if (z->scan_n == 1) {
int i,j;
STBI_SIMD_ALIGN(short, data[64]);
int n = z->order[0];
// non-interleaved data, we just need to process one block at a time,
// in trivial scanline order
// number of blocks to do just depends on how many actual "pixels" this
// component has, independent of interleaved MCU blocking and such
int w = (z->img_comp[n].x+7) >> 3;
int h = (z->img_comp[n].y+7) >> 3;
for (j=0; j < h; ++j) {
for (i=0; i < w; ++i) {
int ha = z->img_comp[n].ha;
if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0;
z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data);
// every data block is an MCU, so countdown the restart interval
if (--z->todo <= 0) {
if (z->code_bits < 24) stbi__grow_buffer_unsafe(z);
// if it's NOT a restart, then just bail, so we get corrupt data
// rather than no data
if (!STBI__RESTART(z->marker)) return 1;
stbi__jpeg_reset(z);
}
}
}
return 1;
} else { // interleaved
int i,j,k,x,y;
STBI_SIMD_ALIGN(short, data[64]);
for (j=0; j < z->img_mcu_y; ++j) {
for (i=0; i < z->img_mcu_x; ++i) {
// scan an interleaved mcu... process scan_n components in order
for (k=0; k < z->scan_n; ++k) {
int n = z->order[k];
// scan out an mcu's worth of this component; that's just determined
// by the basic H and V specified for the component
for (y=0; y < z->img_comp[n].v; ++y) {
for (x=0; x < z->img_comp[n].h; ++x) {
int x2 = (i*z->img_comp[n].h + x)*8;
int y2 = (j*z->img_comp[n].v + y)*8;
int ha = z->img_comp[n].ha;
if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0;
z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data);
}
}
}
// after all interleaved components, that's an interleaved MCU,
// so now count down the restart interval
if (--z->todo <= 0) {
if (z->code_bits < 24) stbi__grow_buffer_unsafe(z);
if (!STBI__RESTART(z->marker)) return 1;
stbi__jpeg_reset(z);
}
}
}
return 1;
}
} else {
if (z->scan_n == 1) {
int i,j;
int n = z->order[0];
// non-interleaved data, we just need to process one block at a time,
// in trivial scanline order
// number of blocks to do just depends on how many actual "pixels" this
// component has, independent of interleaved MCU blocking and such
int w = (z->img_comp[n].x+7) >> 3;
int h = (z->img_comp[n].y+7) >> 3;
for (j=0; j < h; ++j) {
for (i=0; i < w; ++i) {
short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w);
if (z->spec_start == 0) {
if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n))
return 0;
} else {
int ha = z->img_comp[n].ha;
if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha]))
return 0;
}
// every data block is an MCU, so countdown the restart interval
if (--z->todo <= 0) {
if (z->code_bits < 24) stbi__grow_buffer_unsafe(z);
if (!STBI__RESTART(z->marker)) return 1;
stbi__jpeg_reset(z);
}
}
}
return 1;
} else { // interleaved
int i,j,k,x,y;
for (j=0; j < z->img_mcu_y; ++j) {
for (i=0; i < z->img_mcu_x; ++i) {
// scan an interleaved mcu... process scan_n components in order
for (k=0; k < z->scan_n; ++k) {
int n = z->order[k];
// scan out an mcu's worth of this component; that's just determined
// by the basic H and V specified for the component
for (y=0; y < z->img_comp[n].v; ++y) {
for (x=0; x < z->img_comp[n].h; ++x) {
int x2 = (i*z->img_comp[n].h + x);
int y2 = (j*z->img_comp[n].v + y);
short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w);
if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n))
return 0;
}
}
}
// after all interleaved components, that's an interleaved MCU,
// so now count down the restart interval
if (--z->todo <= 0) {
if (z->code_bits < 24) stbi__grow_buffer_unsafe(z);
if (!STBI__RESTART(z->marker)) return 1;
stbi__jpeg_reset(z);
}
}
}
return 1;
}
}
}
static void stbi__jpeg_dequantize(short *data, stbi_uc *dequant)
{
int i;
for (i=0; i < 64; ++i)
data[i] *= dequant[i];
}
static void stbi__jpeg_finish(stbi__jpeg *z)
{
if (z->progressive) {
// dequantize and idct the data
int i,j,n;
for (n=0; n < z->s->img_n; ++n) {
int w = (z->img_comp[n].x+7) >> 3;
int h = (z->img_comp[n].y+7) >> 3;
for (j=0; j < h; ++j) {
for (i=0; i < w; ++i) {
short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w);
stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]);
z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data);
}
}
}
}
}
static int stbi__process_marker(stbi__jpeg *z, int m)
{
int L;
switch (m) {
case STBI__MARKER_none: // no marker found
return stbi__err("expected marker","Corrupt JPEG");
case 0xDD: // DRI - specify restart interval
if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG");
z->restart_interval = stbi__get16be(z->s);
return 1;
case 0xDB: // DQT - define quantization table
L = stbi__get16be(z->s)-2;
while (L > 0) {
int q = stbi__get8(z->s);
int p = q >> 4;
int t = q & 15,i;
if (p != 0) return stbi__err("bad DQT type","Corrupt JPEG");
if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG");
for (i=0; i < 64; ++i)
z->dequant[t][stbi__jpeg_dezigzag[i]] = stbi__get8(z->s);
L -= 65;
}
return L==0;
case 0xC4: // DHT - define huffman table
L = stbi__get16be(z->s)-2;
while (L > 0) {
stbi_uc *v;
int sizes[16],i,n=0;
int q = stbi__get8(z->s);
int tc = q >> 4;
int th = q & 15;
if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG");
for (i=0; i < 16; ++i) {
sizes[i] = stbi__get8(z->s);
n += sizes[i];
}
L -= 17;
if (tc == 0) {
if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0;
v = z->huff_dc[th].values;
} else {
if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0;
v = z->huff_ac[th].values;
}
for (i=0; i < n; ++i)
v[i] = stbi__get8(z->s);
if (tc != 0)
stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th);
L -= n;
}
return L==0;
}
// check for comment block or APP blocks
if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) {
stbi__skip(z->s, stbi__get16be(z->s)-2);
return 1;
}
return 0;
}
// after we see SOS
static int stbi__process_scan_header(stbi__jpeg *z)
{
int i;
int Ls = stbi__get16be(z->s);
z->scan_n = stbi__get8(z->s);
if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG");
if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG");
for (i=0; i < z->scan_n; ++i) {
int id = stbi__get8(z->s), which;
int q = stbi__get8(z->s);
for (which = 0; which < z->s->img_n; ++which)
if (z->img_comp[which].id == id)
break;
if (which == z->s->img_n) return 0; // no match
z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG");
z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG");
z->order[i] = which;
}
{
int aa;
z->spec_start = stbi__get8(z->s);
z->spec_end = stbi__get8(z->s); // should be 63, but might be 0
aa = stbi__get8(z->s);
z->succ_high = (aa >> 4);
z->succ_low = (aa & 15);
if (z->progressive) {
if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13)
return stbi__err("bad SOS", "Corrupt JPEG");
} else {
if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG");
if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG");
z->spec_end = 63;
}
}
return 1;
}
static int stbi__process_frame_header(stbi__jpeg *z, int scan)
{
stbi__context *s = z->s;
int Lf,p,i,q, h_max=1,v_max=1,c;
Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG
p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline
s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG
s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires
c = stbi__get8(s);
if (c != 3 && c != 1) return stbi__err("bad component count","Corrupt JPEG"); // JFIF requires
s->img_n = c;
for (i=0; i < c; ++i) {
z->img_comp[i].data = NULL;
z->img_comp[i].linebuf = NULL;
}
if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG");
for (i=0; i < s->img_n; ++i) {
z->img_comp[i].id = stbi__get8(s);
if (z->img_comp[i].id != i+1) // JFIF requires
if (z->img_comp[i].id != i) // some version of jpegtran outputs non-JFIF-compliant files!
return stbi__err("bad component ID","Corrupt JPEG");
q = stbi__get8(s);
z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG");
z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG");
z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG");
}
if (scan != STBI__SCAN_load) return 1;
if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode");
for (i=0; i < s->img_n; ++i) {
if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h;
if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v;
}
// compute interleaved mcu info
z->img_h_max = h_max;
z->img_v_max = v_max;
z->img_mcu_w = h_max * 8;
z->img_mcu_h = v_max * 8;
z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w;
z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h;
for (i=0; i < s->img_n; ++i) {
// number of effective pixels (e.g. for non-interleaved MCU)
z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max;
z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max;
// to simplify generation, we'll allocate enough memory to decode
// the bogus oversized data from using interleaved MCUs and their
// big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't
// discard the extra data until colorspace conversion
z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8;
z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8;
z->img_comp[i].raw_data = stbi__malloc(z->img_comp[i].w2 * z->img_comp[i].h2+15);
if (z->img_comp[i].raw_data == NULL) {
for(--i; i >= 0; --i) {
STBI_FREE(z->img_comp[i].raw_data);
z->img_comp[i].raw_data = NULL;
}
return stbi__err("outofmem", "Out of memory");
}
// align blocks for idct using mmx/sse
z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15);
z->img_comp[i].linebuf = NULL;
if (z->progressive) {
z->img_comp[i].coeff_w = (z->img_comp[i].w2 + 7) >> 3;
z->img_comp[i].coeff_h = (z->img_comp[i].h2 + 7) >> 3;
z->img_comp[i].raw_coeff = STBI_MALLOC(z->img_comp[i].coeff_w * z->img_comp[i].coeff_h * 64 * sizeof(short) + 15);
z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15);
} else {
z->img_comp[i].coeff = 0;
z->img_comp[i].raw_coeff = 0;
}
}
return 1;
}
// use comparisons since in some cases we handle more than one case (e.g. SOF)
#define stbi__DNL(x) ((x) == 0xdc)
#define stbi__SOI(x) ((x) == 0xd8)
#define stbi__EOI(x) ((x) == 0xd9)
#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2)
#define stbi__SOS(x) ((x) == 0xda)
#define stbi__SOF_progressive(x) ((x) == 0xc2)
static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan)
{
int m;
z->marker = STBI__MARKER_none; // initialize cached marker to empty
m = stbi__get_marker(z);
if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG");
if (scan == STBI__SCAN_type) return 1;
m = stbi__get_marker(z);
while (!stbi__SOF(m)) {
if (!stbi__process_marker(z,m)) return 0;
m = stbi__get_marker(z);
while (m == STBI__MARKER_none) {
// some files have extra padding after their blocks, so ok, we'll scan
if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG");
m = stbi__get_marker(z);
}
}
z->progressive = stbi__SOF_progressive(m);
if (!stbi__process_frame_header(z, scan)) return 0;
return 1;
}
// decode image to YCbCr format
static int stbi__decode_jpeg_image(stbi__jpeg *j)
{
int m;
for (m = 0; m < 4; m++) {
j->img_comp[m].raw_data = NULL;
j->img_comp[m].raw_coeff = NULL;
}
j->restart_interval = 0;
if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0;
m = stbi__get_marker(j);
while (!stbi__EOI(m)) {
if (stbi__SOS(m)) {
if (!stbi__process_scan_header(j)) return 0;
if (!stbi__parse_entropy_coded_data(j)) return 0;
if (j->marker == STBI__MARKER_none ) {
// handle 0s at the end of image data from IP Kamera 9060
while (!stbi__at_eof(j->s)) {
int x = stbi__get8(j->s);
if (x == 255) {
j->marker = stbi__get8(j->s);
break;
} else if (x != 0) {
return stbi__err("junk before marker", "Corrupt JPEG");
}
}
// if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0
}
} else {
if (!stbi__process_marker(j, m)) return 0;
}
m = stbi__get_marker(j);
}
if (j->progressive)
stbi__jpeg_finish(j);
return 1;
}
// static jfif-centered resampling (across block boundaries)
typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1,
int w, int hs);
#define stbi__div4(x) ((stbi_uc) ((x) >> 2))
static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
STBI_NOTUSED(out);
STBI_NOTUSED(in_far);
STBI_NOTUSED(w);
STBI_NOTUSED(hs);
return in_near;
}
static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
// need to generate two samples vertically for every one in input
int i;
STBI_NOTUSED(hs);
for (i=0; i < w; ++i)
out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2);
return out;
}
static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
// need to generate two samples horizontally for every one in input
int i;
stbi_uc *input = in_near;
if (w == 1) {
// if only one sample, can't do any interpolation
out[0] = out[1] = input[0];
return out;
}
out[0] = input[0];
out[1] = stbi__div4(input[0]*3 + input[1] + 2);
for (i=1; i < w-1; ++i) {
int n = 3*input[i]+2;
out[i*2+0] = stbi__div4(n+input[i-1]);
out[i*2+1] = stbi__div4(n+input[i+1]);
}
out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2);
out[i*2+1] = input[w-1];
STBI_NOTUSED(in_far);
STBI_NOTUSED(hs);
return out;
}
#define stbi__div16(x) ((stbi_uc) ((x) >> 4))
static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
// need to generate 2x2 samples for every one in input
int i,t0,t1;
if (w == 1) {
out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2);
return out;
}
t1 = 3*in_near[0] + in_far[0];
out[0] = stbi__div4(t1+2);
for (i=1; i < w; ++i) {
t0 = t1;
t1 = 3*in_near[i]+in_far[i];
out[i*2-1] = stbi__div16(3*t0 + t1 + 8);
out[i*2 ] = stbi__div16(3*t1 + t0 + 8);
}
out[w*2-1] = stbi__div4(t1+2);
STBI_NOTUSED(hs);
return out;
}
#if defined(STBI_SSE2) || defined(STBI_NEON)
static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
// need to generate 2x2 samples for every one in input
int i=0,t0,t1;
if (w == 1) {
out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2);
return out;
}
t1 = 3*in_near[0] + in_far[0];
// process groups of 8 pixels for as long as we can.
// note we can't handle the last pixel in a row in this loop
// because we need to handle the filter boundary conditions.
for (; i < ((w-1) & ~7); i += 8) {
#if defined(STBI_SSE2)
// load and perform the vertical filtering pass
// this uses 3*x + y = 4*x + (y - x)
__m128i zero = _mm_setzero_si128();
__m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i));
__m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i));
__m128i farw = _mm_unpacklo_epi8(farb, zero);
__m128i nearw = _mm_unpacklo_epi8(nearb, zero);
__m128i diff = _mm_sub_epi16(farw, nearw);
__m128i nears = _mm_slli_epi16(nearw, 2);
__m128i curr = _mm_add_epi16(nears, diff); // current row
// horizontal filter works the same based on shifted vers of current
// row. "prev" is current row shifted right by 1 pixel; we need to
// insert the previous pixel value (from t1).
// "next" is current row shifted left by 1 pixel, with first pixel
// of next block of 8 pixels added in.
__m128i prv0 = _mm_slli_si128(curr, 2);
__m128i nxt0 = _mm_srli_si128(curr, 2);
__m128i prev = _mm_insert_epi16(prv0, t1, 0);
__m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7);
// horizontal filter, polyphase implementation since it's convenient:
// even pixels = 3*cur + prev = cur*4 + (prev - cur)
// odd pixels = 3*cur + next = cur*4 + (next - cur)
// note the shared term.
__m128i bias = _mm_set1_epi16(8);
__m128i curs = _mm_slli_epi16(curr, 2);
__m128i prvd = _mm_sub_epi16(prev, curr);
__m128i nxtd = _mm_sub_epi16(next, curr);
__m128i curb = _mm_add_epi16(curs, bias);
__m128i even = _mm_add_epi16(prvd, curb);
__m128i odd = _mm_add_epi16(nxtd, curb);
// interleave even and odd pixels, then undo scaling.
__m128i int0 = _mm_unpacklo_epi16(even, odd);
__m128i int1 = _mm_unpackhi_epi16(even, odd);
__m128i de0 = _mm_srli_epi16(int0, 4);
__m128i de1 = _mm_srli_epi16(int1, 4);
// pack and write output
__m128i outv = _mm_packus_epi16(de0, de1);
_mm_storeu_si128((__m128i *) (out + i*2), outv);
#elif defined(STBI_NEON)
// load and perform the vertical filtering pass
// this uses 3*x + y = 4*x + (y - x)
uint8x8_t farb = vld1_u8(in_far + i);
uint8x8_t nearb = vld1_u8(in_near + i);
int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb));
int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2));
int16x8_t curr = vaddq_s16(nears, diff); // current row
// horizontal filter works the same based on shifted vers of current
// row. "prev" is current row shifted right by 1 pixel; we need to
// insert the previous pixel value (from t1).
// "next" is current row shifted left by 1 pixel, with first pixel
// of next block of 8 pixels added in.
int16x8_t prv0 = vextq_s16(curr, curr, 7);
int16x8_t nxt0 = vextq_s16(curr, curr, 1);
int16x8_t prev = vsetq_lane_s16(t1, prv0, 0);
int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7);
// horizontal filter, polyphase implementation since it's convenient:
// even pixels = 3*cur + prev = cur*4 + (prev - cur)
// odd pixels = 3*cur + next = cur*4 + (next - cur)
// note the shared term.
int16x8_t curs = vshlq_n_s16(curr, 2);
int16x8_t prvd = vsubq_s16(prev, curr);
int16x8_t nxtd = vsubq_s16(next, curr);
int16x8_t even = vaddq_s16(curs, prvd);
int16x8_t odd = vaddq_s16(curs, nxtd);
// undo scaling and round, then store with even/odd phases interleaved
uint8x8x2_t o;
o.val[0] = vqrshrun_n_s16(even, 4);
o.val[1] = vqrshrun_n_s16(odd, 4);
vst2_u8(out + i*2, o);
#endif
// "previous" value for next iter
t1 = 3*in_near[i+7] + in_far[i+7];
}
t0 = t1;
t1 = 3*in_near[i] + in_far[i];
out[i*2] = stbi__div16(3*t1 + t0 + 8);
for (++i; i < w; ++i) {
t0 = t1;
t1 = 3*in_near[i]+in_far[i];
out[i*2-1] = stbi__div16(3*t0 + t1 + 8);
out[i*2 ] = stbi__div16(3*t1 + t0 + 8);
}
out[w*2-1] = stbi__div4(t1+2);
STBI_NOTUSED(hs);
return out;
}
#endif
static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
{
// resample with nearest-neighbor
int i,j;
STBI_NOTUSED(in_far);
for (i=0; i < w; ++i)
for (j=0; j < hs; ++j)
out[i*hs+j] = in_near[i];
return out;
}
#ifdef STBI_JPEG_OLD
// this is the same YCbCr-to-RGB calculation that stb_image has used
// historically before the algorithm changes in 1.49
#define float2fixed(x) ((int) ((x) * 65536 + 0.5))
static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step)
{
int i;
for (i=0; i < count; ++i) {
int y_fixed = (y[i] << 16) + 32768; // rounding
int r,g,b;
int cr = pcr[i] - 128;
int cb = pcb[i] - 128;
r = y_fixed + cr*float2fixed(1.40200f);
g = y_fixed - cr*float2fixed(0.71414f) - cb*float2fixed(0.34414f);
b = y_fixed + cb*float2fixed(1.77200f);
r >>= 16;
g >>= 16;
b >>= 16;
if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; }
if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; }
if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; }
out[0] = (stbi_uc)r;
out[1] = (stbi_uc)g;
out[2] = (stbi_uc)b;
out[3] = 255;
out += step;
}
}
#else
// this is a reduced-precision calculation of YCbCr-to-RGB introduced
// to make sure the code produces the same results in both SIMD and scalar
#define float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8)
static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step)
{
int i;
for (i=0; i < count; ++i) {
int y_fixed = (y[i] << 20) + (1<<19); // rounding
int r,g,b;
int cr = pcr[i] - 128;
int cb = pcb[i] - 128;
r = y_fixed + cr* float2fixed(1.40200f);
g = y_fixed + (cr*-float2fixed(0.71414f)) + ((cb*-float2fixed(0.34414f)) & 0xffff0000);
b = y_fixed + cb* float2fixed(1.77200f);
r >>= 20;
g >>= 20;
b >>= 20;
if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; }
if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; }
if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; }
out[0] = (stbi_uc)r;
out[1] = (stbi_uc)g;
out[2] = (stbi_uc)b;
out[3] = 255;
out += step;
}
}
#endif
#if defined(STBI_SSE2) || defined(STBI_NEON)
static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step)
{
int i = 0;
#ifdef STBI_SSE2
// step == 3 is pretty ugly on the final interleave, and i'm not convinced
// it's useful in practice (you wouldn't use it for textures, for example).
// so just accelerate step == 4 case.
if (step == 4) {
// this is a fairly straightforward implementation and not super-optimized.
__m128i signflip = _mm_set1_epi8(-0x80);
__m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f));
__m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f));
__m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f));
__m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f));
__m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128);
__m128i xw = _mm_set1_epi16(255); // alpha channel
for (; i+7 < count; i += 8) {
// load
__m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i));
__m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i));
__m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i));
__m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128
__m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128
// unpack to short (and left-shift cr, cb by 8)
__m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes);
__m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased);
__m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased);
// color transform
__m128i yws = _mm_srli_epi16(yw, 4);
__m128i cr0 = _mm_mulhi_epi16(cr_const0, crw);
__m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw);
__m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1);
__m128i cr1 = _mm_mulhi_epi16(crw, cr_const1);
__m128i rws = _mm_add_epi16(cr0, yws);
__m128i gwt = _mm_add_epi16(cb0, yws);
__m128i bws = _mm_add_epi16(yws, cb1);
__m128i gws = _mm_add_epi16(gwt, cr1);
// descale
__m128i rw = _mm_srai_epi16(rws, 4);
__m128i bw = _mm_srai_epi16(bws, 4);
__m128i gw = _mm_srai_epi16(gws, 4);
// back to byte, set up for transpose
__m128i brb = _mm_packus_epi16(rw, bw);
__m128i gxb = _mm_packus_epi16(gw, xw);
// transpose to interleave channels
__m128i t0 = _mm_unpacklo_epi8(brb, gxb);
__m128i t1 = _mm_unpackhi_epi8(brb, gxb);
__m128i o0 = _mm_unpacklo_epi16(t0, t1);
__m128i o1 = _mm_unpackhi_epi16(t0, t1);
// store
_mm_storeu_si128((__m128i *) (out + 0), o0);
_mm_storeu_si128((__m128i *) (out + 16), o1);
out += 32;
}
}
#endif
#ifdef STBI_NEON
// in this version, step=3 support would be easy to add. but is there demand?
if (step == 4) {
// this is a fairly straightforward implementation and not super-optimized.
uint8x8_t signflip = vdup_n_u8(0x80);
int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f));
int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f));
int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f));
int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f));
for (; i+7 < count; i += 8) {
// load
uint8x8_t y_bytes = vld1_u8(y + i);
uint8x8_t cr_bytes = vld1_u8(pcr + i);
uint8x8_t cb_bytes = vld1_u8(pcb + i);
int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip));
int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip));
// expand to s16
int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4));
int16x8_t crw = vshll_n_s8(cr_biased, 7);
int16x8_t cbw = vshll_n_s8(cb_biased, 7);
// color transform
int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0);
int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0);
int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1);
int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1);
int16x8_t rws = vaddq_s16(yws, cr0);
int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1);
int16x8_t bws = vaddq_s16(yws, cb1);
// undo scaling, round, convert to byte
uint8x8x4_t o;
o.val[0] = vqrshrun_n_s16(rws, 4);
o.val[1] = vqrshrun_n_s16(gws, 4);
o.val[2] = vqrshrun_n_s16(bws, 4);
o.val[3] = vdup_n_u8(255);
// store, interleaving r/g/b/a
vst4_u8(out, o);
out += 8*4;
}
}
#endif
for (; i < count; ++i) {
int y_fixed = (y[i] << 20) + (1<<19); // rounding
int r,g,b;
int cr = pcr[i] - 128;
int cb = pcb[i] - 128;
r = y_fixed + cr* float2fixed(1.40200f);
g = y_fixed + cr*-float2fixed(0.71414f) + ((cb*-float2fixed(0.34414f)) & 0xffff0000);
b = y_fixed + cb* float2fixed(1.77200f);
r >>= 20;
g >>= 20;
b >>= 20;
if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; }
if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; }
if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; }
out[0] = (stbi_uc)r;
out[1] = (stbi_uc)g;
out[2] = (stbi_uc)b;
out[3] = 255;
out += step;
}
}
#endif
// set up the kernels
static void stbi__setup_jpeg(stbi__jpeg *j)
{
j->idct_block_kernel = stbi__idct_block;
j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row;
j->resample_row_hv_2_kernel = stbi__resample_row_hv_2;
#ifdef STBI_SSE2
if (stbi__sse2_available()) {
j->idct_block_kernel = stbi__idct_simd;
#ifndef STBI_JPEG_OLD
j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd;
#endif
j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd;
}
#endif
#ifdef STBI_NEON
j->idct_block_kernel = stbi__idct_simd;
#ifndef STBI_JPEG_OLD
j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd;
#endif
j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd;
#endif
}
// clean up the temporary component buffers
static void stbi__cleanup_jpeg(stbi__jpeg *j)
{
int i;
for (i=0; i < j->s->img_n; ++i) {
if (j->img_comp[i].raw_data) {
STBI_FREE(j->img_comp[i].raw_data);
j->img_comp[i].raw_data = NULL;
j->img_comp[i].data = NULL;
}
if (j->img_comp[i].raw_coeff) {
STBI_FREE(j->img_comp[i].raw_coeff);
j->img_comp[i].raw_coeff = 0;
j->img_comp[i].coeff = 0;
}
if (j->img_comp[i].linebuf) {
STBI_FREE(j->img_comp[i].linebuf);
j->img_comp[i].linebuf = NULL;
}
}
}
typedef struct
{
resample_row_func resample;
stbi_uc *line0,*line1;
int hs,vs; // expansion factor in each axis
int w_lores; // horizontal pixels pre-expansion
int ystep; // how far through vertical expansion we are
int ypos; // which pre-expansion row we're on
} stbi__resample;
static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp)
{
int n, decode_n;
z->s->img_n = 0; // make stbi__cleanup_jpeg safe
// validate req_comp
if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error");
// load a jpeg image from whichever source, but leave in YCbCr format
if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; }
// determine actual number of components to generate
n = req_comp ? req_comp : z->s->img_n;
if (z->s->img_n == 3 && n < 3)
decode_n = 1;
else
decode_n = z->s->img_n;
// resample and color-convert
{
int k;
unsigned int i,j;
stbi_uc *output;
stbi_uc *coutput[4];
stbi__resample res_comp[4];
for (k=0; k < decode_n; ++k) {
stbi__resample *r = &res_comp[k];
// allocate line buffer big enough for upsampling off the edges
// with upsample factor of 4
z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3);
if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); }
r->hs = z->img_h_max / z->img_comp[k].h;
r->vs = z->img_v_max / z->img_comp[k].v;
r->ystep = r->vs >> 1;
r->w_lores = (z->s->img_x + r->hs-1) / r->hs;
r->ypos = 0;
r->line0 = r->line1 = z->img_comp[k].data;
if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1;
else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2;
else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2;
else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel;
else r->resample = stbi__resample_row_generic;
}
// can't error after this so, this is safe
output = (stbi_uc *) stbi__malloc(n * z->s->img_x * z->s->img_y + 1);
if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); }
// now go ahead and resample
for (j=0; j < z->s->img_y; ++j) {
stbi_uc *out = output + n * z->s->img_x * j;
for (k=0; k < decode_n; ++k) {
stbi__resample *r = &res_comp[k];
int y_bot = r->ystep >= (r->vs >> 1);
coutput[k] = r->resample(z->img_comp[k].linebuf,
y_bot ? r->line1 : r->line0,
y_bot ? r->line0 : r->line1,
r->w_lores, r->hs);
if (++r->ystep >= r->vs) {
r->ystep = 0;
r->line0 = r->line1;
if (++r->ypos < z->img_comp[k].y)
r->line1 += z->img_comp[k].w2;
}
}
if (n >= 3) {
stbi_uc *y = coutput[0];
if (z->s->img_n == 3) {
z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n);
} else
for (i=0; i < z->s->img_x; ++i) {
out[0] = out[1] = out[2] = y[i];
out[3] = 255; // not used if n==3
out += n;
}
} else {
stbi_uc *y = coutput[0];
if (n == 1)
for (i=0; i < z->s->img_x; ++i) out[i] = y[i];
else
for (i=0; i < z->s->img_x; ++i) *out++ = y[i], *out++ = 255;
}
}
stbi__cleanup_jpeg(z);
*out_x = z->s->img_x;
*out_y = z->s->img_y;
if (comp) *comp = z->s->img_n; // report original components, not output
return output;
}
}
static unsigned char *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
stbi__jpeg j;
j.s = s;
stbi__setup_jpeg(&j);
return load_jpeg_image(&j, x,y,comp,req_comp);
}
static int stbi__jpeg_test(stbi__context *s)
{
int r;
stbi__jpeg j;
j.s = s;
stbi__setup_jpeg(&j);
r = stbi__decode_jpeg_header(&j, STBI__SCAN_type);
stbi__rewind(s);
return r;
}
static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp)
{
if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) {
stbi__rewind( j->s );
return 0;
}
if (x) *x = j->s->img_x;
if (y) *y = j->s->img_y;
if (comp) *comp = j->s->img_n;
return 1;
}
static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp)
{
stbi__jpeg j;
j.s = s;
return stbi__jpeg_info_raw(&j, x, y, comp);
}
#endif
// public domain zlib decode v0.2 Sean Barrett 2006-11-18
// simple implementation
// - all input must be provided in an upfront buffer
// - all output is written to a single output buffer (can malloc/realloc)
// performance
// - fast huffman
#ifndef STBI_NO_ZLIB
// fast-way is faster to check than jpeg huffman, but slow way is slower
#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables
#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1)
// zlib-style huffman encoding
// (jpegs packs from left, zlib from right, so can't share code)
typedef struct
{
stbi__uint16 fast[1 << STBI__ZFAST_BITS];
stbi__uint16 firstcode[16];
int maxcode[17];
stbi__uint16 firstsymbol[16];
stbi_uc size[288];
stbi__uint16 value[288];
} stbi__zhuffman;
stbi_inline static int stbi__bitreverse16(int n)
{
n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1);
n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2);
n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4);
n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8);
return n;
}
stbi_inline static int stbi__bit_reverse(int v, int bits)
{
STBI_ASSERT(bits <= 16);
// to bit reverse n bits, reverse 16 and shift
// e.g. 11 bits, bit reverse and shift away 5
return stbi__bitreverse16(v) >> (16-bits);
}
static int stbi__zbuild_huffman(stbi__zhuffman *z, stbi_uc *sizelist, int num)
{
int i,k=0;
int code, next_code[16], sizes[17];
// DEFLATE spec for generating codes
memset(sizes, 0, sizeof(sizes));
memset(z->fast, 0, sizeof(z->fast));
for (i=0; i < num; ++i)
++sizes[sizelist[i]];
sizes[0] = 0;
for (i=1; i < 16; ++i)
if (sizes[i] > (1 << i))
return stbi__err("bad sizes", "Corrupt PNG");
code = 0;
for (i=1; i < 16; ++i) {
next_code[i] = code;
z->firstcode[i] = (stbi__uint16) code;
z->firstsymbol[i] = (stbi__uint16) k;
code = (code + sizes[i]);
if (sizes[i])
if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG");
z->maxcode[i] = code << (16-i); // preshift for inner loop
code <<= 1;
k += sizes[i];
}
z->maxcode[16] = 0x10000; // sentinel
for (i=0; i < num; ++i) {
int s = sizelist[i];
if (s) {
int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s];
stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i);
z->size [c] = (stbi_uc ) s;
z->value[c] = (stbi__uint16) i;
if (s <= STBI__ZFAST_BITS) {
int j = stbi__bit_reverse(next_code[s],s);
while (j < (1 << STBI__ZFAST_BITS)) {
z->fast[j] = fastv;
j += (1 << s);
}
}
++next_code[s];
}
}
return 1;
}
// zlib-from-memory implementation for PNG reading
// because PNG allows splitting the zlib stream arbitrarily,
// and it's annoying structurally to have PNG call ZLIB call PNG,
// we require PNG read all the IDATs and combine them into a single
// memory buffer
typedef struct
{
stbi_uc *zbuffer, *zbuffer_end;
int num_bits;
stbi__uint32 code_buffer;
char *zout;
char *zout_start;
char *zout_end;
int z_expandable;
stbi__zhuffman z_length, z_distance;
} stbi__zbuf;
stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z)
{
if (z->zbuffer >= z->zbuffer_end) return 0;
return *z->zbuffer++;
}
static void stbi__fill_bits(stbi__zbuf *z)
{
do {
STBI_ASSERT(z->code_buffer < (1U << z->num_bits));
z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits;
z->num_bits += 8;
} while (z->num_bits <= 24);
}
stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n)
{
unsigned int k;
if (z->num_bits < n) stbi__fill_bits(z);
k = z->code_buffer & ((1 << n) - 1);
z->code_buffer >>= n;
z->num_bits -= n;
return k;
}
static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z)
{
int b,s,k;
// not resolved by fast table, so compute it the slow way
// use jpeg approach, which requires MSbits at top
k = stbi__bit_reverse(a->code_buffer, 16);
for (s=STBI__ZFAST_BITS+1; ; ++s)
if (k < z->maxcode[s])
break;
if (s == 16) return -1; // invalid code!
// code size is s, so:
b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s];
STBI_ASSERT(z->size[b] == s);
a->code_buffer >>= s;
a->num_bits -= s;
return z->value[b];
}
stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z)
{
int b,s;
if (a->num_bits < 16) stbi__fill_bits(a);
b = z->fast[a->code_buffer & STBI__ZFAST_MASK];
if (b) {
s = b >> 9;
a->code_buffer >>= s;
a->num_bits -= s;
return b & 511;
}
return stbi__zhuffman_decode_slowpath(a, z);
}
static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes
{
char *q;
int cur, limit, old_limit;
z->zout = zout;
if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG");
cur = (int) (z->zout - z->zout_start);
limit = old_limit = (int) (z->zout_end - z->zout_start);
while (cur + n > limit)
limit *= 2;
q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit);
STBI_NOTUSED(old_limit);
if (q == NULL) return stbi__err("outofmem", "Out of memory");
z->zout_start = q;
z->zout = q + cur;
z->zout_end = q + limit;
return 1;
}
static int stbi__zlength_base[31] = {
3,4,5,6,7,8,9,10,11,13,
15,17,19,23,27,31,35,43,51,59,
67,83,99,115,131,163,195,227,258,0,0 };
static int stbi__zlength_extra[31]=
{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 };
static int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,
257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0};
static int stbi__zdist_extra[32] =
{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
static int stbi__parse_huffman_block(stbi__zbuf *a)
{
char *zout = a->zout;
for(;;) {
int z = stbi__zhuffman_decode(a, &a->z_length);
if (z < 256) {
if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes
if (zout >= a->zout_end) {
if (!stbi__zexpand(a, zout, 1)) return 0;
zout = a->zout;
}
*zout++ = (char) z;
} else {
stbi_uc *p;
int len,dist;
if (z == 256) {
a->zout = zout;
return 1;
}
z -= 257;
len = stbi__zlength_base[z];
if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]);
z = stbi__zhuffman_decode(a, &a->z_distance);
if (z < 0) return stbi__err("bad huffman code","Corrupt PNG");
dist = stbi__zdist_base[z];
if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]);
if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG");
if (zout + len > a->zout_end) {
if (!stbi__zexpand(a, zout, len)) return 0;
zout = a->zout;
}
p = (stbi_uc *) (zout - dist);
if (dist == 1) { // run of one byte; common in images.
stbi_uc v = *p;
if (len) { do *zout++ = v; while (--len); }
} else {
if (len) { do *zout++ = *p++; while (--len); }
}
}
}
}
static int stbi__compute_huffman_codes(stbi__zbuf *a)
{
static stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 };
stbi__zhuffman z_codelength;
stbi_uc lencodes[286+32+137];//padding for maximum single op
stbi_uc codelength_sizes[19];
int i,n;
int hlit = stbi__zreceive(a,5) + 257;
int hdist = stbi__zreceive(a,5) + 1;
int hclen = stbi__zreceive(a,4) + 4;
memset(codelength_sizes, 0, sizeof(codelength_sizes));
for (i=0; i < hclen; ++i) {
int s = stbi__zreceive(a,3);
codelength_sizes[length_dezigzag[i]] = (stbi_uc) s;
}
if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0;
n = 0;
while (n < hlit + hdist) {
int c = stbi__zhuffman_decode(a, &z_codelength);
if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG");
if (c < 16)
lencodes[n++] = (stbi_uc) c;
else if (c == 16) {
c = stbi__zreceive(a,2)+3;
memset(lencodes+n, lencodes[n-1], c);
n += c;
} else if (c == 17) {
c = stbi__zreceive(a,3)+3;
memset(lencodes+n, 0, c);
n += c;
} else {
STBI_ASSERT(c == 18);
c = stbi__zreceive(a,7)+11;
memset(lencodes+n, 0, c);
n += c;
}
}
if (n != hlit+hdist) return stbi__err("bad codelengths","Corrupt PNG");
if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0;
if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0;
return 1;
}
static int stbi__parse_uncomperssed_block(stbi__zbuf *a)
{
stbi_uc header[4];
int len,nlen,k;
if (a->num_bits & 7)
stbi__zreceive(a, a->num_bits & 7); // discard
// drain the bit-packed data into header
k = 0;
while (a->num_bits > 0) {
header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check
a->code_buffer >>= 8;
a->num_bits -= 8;
}
STBI_ASSERT(a->num_bits == 0);
// now fill header the normal way
while (k < 4)
header[k++] = stbi__zget8(a);
len = header[1] * 256 + header[0];
nlen = header[3] * 256 + header[2];
if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG");
if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG");
if (a->zout + len > a->zout_end)
if (!stbi__zexpand(a, a->zout, len)) return 0;
memcpy(a->zout, a->zbuffer, len);
a->zbuffer += len;
a->zout += len;
return 1;
}
static int stbi__parse_zlib_header(stbi__zbuf *a)
{
int cmf = stbi__zget8(a);
int cm = cmf & 15;
/* int cinfo = cmf >> 4; */
int flg = stbi__zget8(a);
if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec
if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png
if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png
// window = 1 << (8 + cinfo)... but who cares, we fully buffer output
return 1;
}
// @TODO: should statically initialize these for optimal thread safety
static stbi_uc stbi__zdefault_length[288], stbi__zdefault_distance[32];
static void stbi__init_zdefaults(void)
{
int i; // use <= to match clearly with spec
for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8;
for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9;
for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7;
for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8;
for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5;
}
static int stbi__parse_zlib(stbi__zbuf *a, int parse_header)
{
int final, type;
if (parse_header)
if (!stbi__parse_zlib_header(a)) return 0;
a->num_bits = 0;
a->code_buffer = 0;
do {
final = stbi__zreceive(a,1);
type = stbi__zreceive(a,2);
if (type == 0) {
if (!stbi__parse_uncomperssed_block(a)) return 0;
} else if (type == 3) {
return 0;
} else {
if (type == 1) {
// use fixed code lengths
if (!stbi__zdefault_distance[31]) stbi__init_zdefaults();
if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , 288)) return 0;
if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0;
} else {
if (!stbi__compute_huffman_codes(a)) return 0;
}
if (!stbi__parse_huffman_block(a)) return 0;
}
} while (!final);
return 1;
}
static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header)
{
a->zout_start = obuf;
a->zout = obuf;
a->zout_end = obuf + olen;
a->z_expandable = exp;
return stbi__parse_zlib(a, parse_header);
}
STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen)
{
stbi__zbuf a;
char *p = (char *) stbi__malloc(initial_size);
if (p == NULL) return NULL;
a.zbuffer = (stbi_uc *) buffer;
a.zbuffer_end = (stbi_uc *) buffer + len;
if (stbi__do_zlib(&a, p, initial_size, 1, 1)) {
if (outlen) *outlen = (int) (a.zout - a.zout_start);
return a.zout_start;
} else {
STBI_FREE(a.zout_start);
return NULL;
}
}
STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
{
return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen);
}
STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header)
{
stbi__zbuf a;
char *p = (char *) stbi__malloc(initial_size);
if (p == NULL) return NULL;
a.zbuffer = (stbi_uc *) buffer;
a.zbuffer_end = (stbi_uc *) buffer + len;
if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) {
if (outlen) *outlen = (int) (a.zout - a.zout_start);
return a.zout_start;
} else {
STBI_FREE(a.zout_start);
return NULL;
}
}
STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
{
stbi__zbuf a;
a.zbuffer = (stbi_uc *) ibuffer;
a.zbuffer_end = (stbi_uc *) ibuffer + ilen;
if (stbi__do_zlib(&a, obuffer, olen, 0, 1))
return (int) (a.zout - a.zout_start);
else
return -1;
}
STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
{
stbi__zbuf a;
char *p = (char *) stbi__malloc(16384);
if (p == NULL) return NULL;
a.zbuffer = (stbi_uc *) buffer;
a.zbuffer_end = (stbi_uc *) buffer+len;
if (stbi__do_zlib(&a, p, 16384, 1, 0)) {
if (outlen) *outlen = (int) (a.zout - a.zout_start);
return a.zout_start;
} else {
STBI_FREE(a.zout_start);
return NULL;
}
}
STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
{
stbi__zbuf a;
a.zbuffer = (stbi_uc *) ibuffer;
a.zbuffer_end = (stbi_uc *) ibuffer + ilen;
if (stbi__do_zlib(&a, obuffer, olen, 0, 0))
return (int) (a.zout - a.zout_start);
else
return -1;
}
#endif
// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18
// simple implementation
// - only 8-bit samples
// - no CRC checking
// - allocates lots of intermediate memory
// - avoids problem of streaming data between subsystems
// - avoids explicit window management
// performance
// - uses stb_zlib, a PD zlib implementation with fast huffman decoding
#ifndef STBI_NO_PNG
typedef struct
{
stbi__uint32 length;
stbi__uint32 type;
} stbi__pngchunk;
static stbi__pngchunk stbi__get_chunk_header(stbi__context *s)
{
stbi__pngchunk c;
c.length = stbi__get32be(s);
c.type = stbi__get32be(s);
return c;
}
static int stbi__check_png_header(stbi__context *s)
{
static stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 };
int i;
for (i=0; i < 8; ++i)
if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG");
return 1;
}
typedef struct
{
stbi__context *s;
stbi_uc *idata, *expanded, *out;
} stbi__png;
enum {
STBI__F_none=0,
STBI__F_sub=1,
STBI__F_up=2,
STBI__F_avg=3,
STBI__F_paeth=4,
// synthetic filters used for first scanline to avoid needing a dummy row of 0s
STBI__F_avg_first,
STBI__F_paeth_first
};
static stbi_uc first_row_filter[5] =
{
STBI__F_none,
STBI__F_sub,
STBI__F_none,
STBI__F_avg_first,
STBI__F_paeth_first
};
static int stbi__paeth(int a, int b, int c)
{
int p = a + b - c;
int pa = abs(p-a);
int pb = abs(p-b);
int pc = abs(p-c);
if (pa <= pb && pa <= pc) return a;
if (pb <= pc) return b;
return c;
}
static stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 };
// create the png data from post-deflated data
static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color)
{
stbi__context *s = a->s;
stbi__uint32 i,j,stride = x*out_n;
stbi__uint32 img_len, img_width_bytes;
int k;
int img_n = s->img_n; // copy it into a local for later
STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1);
a->out = (stbi_uc *) stbi__malloc(x * y * out_n); // extra bytes to write off the end into
if (!a->out) return stbi__err("outofmem", "Out of memory");
img_width_bytes = (((img_n * x * depth) + 7) >> 3);
img_len = (img_width_bytes + 1) * y;
if (s->img_x == x && s->img_y == y) {
if (raw_len != img_len) return stbi__err("not enough pixels","Corrupt PNG");
} else { // interlaced:
if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG");
}
for (j=0; j < y; ++j) {
stbi_uc *cur = a->out + stride*j;
stbi_uc *prior = cur - stride;
int filter = *raw++;
int filter_bytes = img_n;
int width = x;
if (filter > 4)
return stbi__err("invalid filter","Corrupt PNG");
if (depth < 8) {
STBI_ASSERT(img_width_bytes <= x);
cur += x*out_n - img_width_bytes; // store output to the rightmost img_len bytes, so we can decode in place
filter_bytes = 1;
width = img_width_bytes;
}
// if first row, use special filter that doesn't sample previous row
if (j == 0) filter = first_row_filter[filter];
// handle first byte explicitly
for (k=0; k < filter_bytes; ++k) {
switch (filter) {
case STBI__F_none : cur[k] = raw[k]; break;
case STBI__F_sub : cur[k] = raw[k]; break;
case STBI__F_up : cur[k] = STBI__BYTECAST(raw[k] + prior[k]); break;
case STBI__F_avg : cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); break;
case STBI__F_paeth : cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(0,prior[k],0)); break;
case STBI__F_avg_first : cur[k] = raw[k]; break;
case STBI__F_paeth_first: cur[k] = raw[k]; break;
}
}
if (depth == 8) {
if (img_n != out_n)
cur[img_n] = 255; // first pixel
raw += img_n;
cur += out_n;
prior += out_n;
} else {
raw += 1;
cur += 1;
prior += 1;
}
// this is a little gross, so that we don't switch per-pixel or per-component
if (depth < 8 || img_n == out_n) {
int nk = (width - 1)*img_n;
#define CASE(f) \
case f: \
for (k=0; k < nk; ++k)
switch (filter) {
// "none" filter turns into a memcpy here; make that explicit.
case STBI__F_none: memcpy(cur, raw, nk); break;
CASE(STBI__F_sub) cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); break;
CASE(STBI__F_up) cur[k] = STBI__BYTECAST(raw[k] + prior[k]); break;
CASE(STBI__F_avg) cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); break;
CASE(STBI__F_paeth) cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],prior[k],prior[k-filter_bytes])); break;
CASE(STBI__F_avg_first) cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); break;
CASE(STBI__F_paeth_first) cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],0,0)); break;
}
#undef CASE
raw += nk;
} else {
STBI_ASSERT(img_n+1 == out_n);
#define CASE(f) \
case f: \
for (i=x-1; i >= 1; --i, cur[img_n]=255,raw+=img_n,cur+=out_n,prior+=out_n) \
for (k=0; k < img_n; ++k)
switch (filter) {
CASE(STBI__F_none) cur[k] = raw[k]; break;
CASE(STBI__F_sub) cur[k] = STBI__BYTECAST(raw[k] + cur[k-out_n]); break;
CASE(STBI__F_up) cur[k] = STBI__BYTECAST(raw[k] + prior[k]); break;
CASE(STBI__F_avg) cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-out_n])>>1)); break;
CASE(STBI__F_paeth) cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-out_n],prior[k],prior[k-out_n])); break;
CASE(STBI__F_avg_first) cur[k] = STBI__BYTECAST(raw[k] + (cur[k-out_n] >> 1)); break;
CASE(STBI__F_paeth_first) cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-out_n],0,0)); break;
}
#undef CASE
}
}
// we make a separate pass to expand bits to pixels; for performance,
// this could run two scanlines behind the above code, so it won't
// intefere with filtering but will still be in the cache.
if (depth < 8) {
for (j=0; j < y; ++j) {
stbi_uc *cur = a->out + stride*j;
stbi_uc *in = a->out + stride*j + x*out_n - img_width_bytes;
// unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit
// png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop
stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range
// note that the final byte might overshoot and write more data than desired.
// we can allocate enough data that this never writes out of memory, but it
// could also overwrite the next scanline. can it overwrite non-empty data
// on the next scanline? yes, consider 1-pixel-wide scanlines with 1-bit-per-pixel.
// so we need to explicitly clamp the final ones
if (depth == 4) {
for (k=x*img_n; k >= 2; k-=2, ++in) {
*cur++ = scale * ((*in >> 4) );
*cur++ = scale * ((*in ) & 0x0f);
}
if (k > 0) *cur++ = scale * ((*in >> 4) );
} else if (depth == 2) {
for (k=x*img_n; k >= 4; k-=4, ++in) {
*cur++ = scale * ((*in >> 6) );
*cur++ = scale * ((*in >> 4) & 0x03);
*cur++ = scale * ((*in >> 2) & 0x03);
*cur++ = scale * ((*in ) & 0x03);
}
if (k > 0) *cur++ = scale * ((*in >> 6) );
if (k > 1) *cur++ = scale * ((*in >> 4) & 0x03);
if (k > 2) *cur++ = scale * ((*in >> 2) & 0x03);
} else if (depth == 1) {
for (k=x*img_n; k >= 8; k-=8, ++in) {
*cur++ = scale * ((*in >> 7) );
*cur++ = scale * ((*in >> 6) & 0x01);
*cur++ = scale * ((*in >> 5) & 0x01);
*cur++ = scale * ((*in >> 4) & 0x01);
*cur++ = scale * ((*in >> 3) & 0x01);
*cur++ = scale * ((*in >> 2) & 0x01);
*cur++ = scale * ((*in >> 1) & 0x01);
*cur++ = scale * ((*in ) & 0x01);
}
if (k > 0) *cur++ = scale * ((*in >> 7) );
if (k > 1) *cur++ = scale * ((*in >> 6) & 0x01);
if (k > 2) *cur++ = scale * ((*in >> 5) & 0x01);
if (k > 3) *cur++ = scale * ((*in >> 4) & 0x01);
if (k > 4) *cur++ = scale * ((*in >> 3) & 0x01);
if (k > 5) *cur++ = scale * ((*in >> 2) & 0x01);
if (k > 6) *cur++ = scale * ((*in >> 1) & 0x01);
}
if (img_n != out_n) {
int q;
// insert alpha = 255
cur = a->out + stride*j;
if (img_n == 1) {
for (q=x-1; q >= 0; --q) {
cur[q*2+1] = 255;
cur[q*2+0] = cur[q];
}
} else {
STBI_ASSERT(img_n == 3);
for (q=x-1; q >= 0; --q) {
cur[q*4+3] = 255;
cur[q*4+2] = cur[q*3+2];
cur[q*4+1] = cur[q*3+1];
cur[q*4+0] = cur[q*3+0];
}
}
}
}
}
return 1;
}
static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced)
{
stbi_uc *final;
int p;
if (!interlaced)
return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color);
// de-interlacing
final = (stbi_uc *) stbi__malloc(a->s->img_x * a->s->img_y * out_n);
for (p=0; p < 7; ++p) {
int xorig[] = { 0,4,0,2,0,1,0 };
int yorig[] = { 0,0,4,0,2,0,1 };
int xspc[] = { 8,8,4,4,2,2,1 };
int yspc[] = { 8,8,8,4,4,2,2 };
int i,j,x,y;
// pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1
x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p];
y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p];
if (x && y) {
stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y;
if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) {
STBI_FREE(final);
return 0;
}
for (j=0; j < y; ++j) {
for (i=0; i < x; ++i) {
int out_y = j*yspc[p]+yorig[p];
int out_x = i*xspc[p]+xorig[p];
memcpy(final + out_y*a->s->img_x*out_n + out_x*out_n,
a->out + (j*x+i)*out_n, out_n);
}
}
STBI_FREE(a->out);
image_data += img_len;
image_data_len -= img_len;
}
}
a->out = final;
return 1;
}
static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n)
{
stbi__context *s = z->s;
stbi__uint32 i, pixel_count = s->img_x * s->img_y;
stbi_uc *p = z->out;
// compute color-based transparency, assuming we've
// already got 255 as the alpha value in the output
STBI_ASSERT(out_n == 2 || out_n == 4);
if (out_n == 2) {
for (i=0; i < pixel_count; ++i) {
p[1] = (p[0] == tc[0] ? 0 : 255);
p += 2;
}
} else {
for (i=0; i < pixel_count; ++i) {
if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2])
p[3] = 0;
p += 4;
}
}
return 1;
}
static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n)
{
stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y;
stbi_uc *p, *temp_out, *orig = a->out;
p = (stbi_uc *) stbi__malloc(pixel_count * pal_img_n);
if (p == NULL) return stbi__err("outofmem", "Out of memory");
// between here and free(out) below, exitting would leak
temp_out = p;
if (pal_img_n == 3) {
for (i=0; i < pixel_count; ++i) {
int n = orig[i]*4;
p[0] = palette[n ];
p[1] = palette[n+1];
p[2] = palette[n+2];
p += 3;
}
} else {
for (i=0; i < pixel_count; ++i) {
int n = orig[i]*4;
p[0] = palette[n ];
p[1] = palette[n+1];
p[2] = palette[n+2];
p[3] = palette[n+3];
p += 4;
}
}
STBI_FREE(a->out);
a->out = temp_out;
STBI_NOTUSED(len);
return 1;
}
static int stbi__unpremultiply_on_load = 0;
static int stbi__de_iphone_flag = 0;
STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
{
stbi__unpremultiply_on_load = flag_true_if_should_unpremultiply;
}
STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
{
stbi__de_iphone_flag = flag_true_if_should_convert;
}
static void stbi__de_iphone(stbi__png *z)
{
stbi__context *s = z->s;
stbi__uint32 i, pixel_count = s->img_x * s->img_y;
stbi_uc *p = z->out;
if (s->img_out_n == 3) { // convert bgr to rgb
for (i=0; i < pixel_count; ++i) {
stbi_uc t = p[0];
p[0] = p[2];
p[2] = t;
p += 3;
}
} else {
STBI_ASSERT(s->img_out_n == 4);
if (stbi__unpremultiply_on_load) {
// convert bgr to rgb and unpremultiply
for (i=0; i < pixel_count; ++i) {
stbi_uc a = p[3];
stbi_uc t = p[0];
if (a) {
p[0] = p[2] * 255 / a;
p[1] = p[1] * 255 / a;
p[2] = t * 255 / a;
} else {
p[0] = p[2];
p[2] = t;
}
p += 4;
}
} else {
// convert bgr to rgb
for (i=0; i < pixel_count; ++i) {
stbi_uc t = p[0];
p[0] = p[2];
p[2] = t;
p += 4;
}
}
}
}
#define STBI__PNG_TYPE(a,b,c,d) (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp)
{
stbi_uc palette[1024], pal_img_n=0;
stbi_uc has_trans=0, tc[3];
stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0;
int first=1,k,interlace=0, color=0, depth=0, is_iphone=0;
stbi__context *s = z->s;
z->expanded = NULL;
z->idata = NULL;
z->out = NULL;
if (!stbi__check_png_header(s)) return 0;
if (scan == STBI__SCAN_type) return 1;
for (;;) {
stbi__pngchunk c = stbi__get_chunk_header(s);
switch (c.type) {
case STBI__PNG_TYPE('C','g','B','I'):
is_iphone = 1;
stbi__skip(s, c.length);
break;
case STBI__PNG_TYPE('I','H','D','R'): {
int comp,filter;
if (!first) return stbi__err("multiple IHDR","Corrupt PNG");
first = 0;
if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG");
s->img_x = stbi__get32be(s); if (s->img_x > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)");
s->img_y = stbi__get32be(s); if (s->img_y > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)");
depth = stbi__get8(s); if (depth != 1 && depth != 2 && depth != 4 && depth != 8) return stbi__err("1/2/4/8-bit only","PNG not supported: 1/2/4/8-bit only");
color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG");
if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG");
comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG");
filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG");
interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG");
if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG");
if (!pal_img_n) {
s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0);
if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode");
if (scan == STBI__SCAN_header) return 1;
} else {
// if paletted, then pal_n is our final components, and
// img_n is # components to decompress/filter.
s->img_n = 1;
if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG");
// if SCAN_header, have to scan to see if we have a tRNS
}
break;
}
case STBI__PNG_TYPE('P','L','T','E'): {
if (first) return stbi__err("first not IHDR", "Corrupt PNG");
if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG");
pal_len = c.length / 3;
if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG");
for (i=0; i < pal_len; ++i) {
palette[i*4+0] = stbi__get8(s);
palette[i*4+1] = stbi__get8(s);
palette[i*4+2] = stbi__get8(s);
palette[i*4+3] = 255;
}
break;
}
case STBI__PNG_TYPE('t','R','N','S'): {
if (first) return stbi__err("first not IHDR", "Corrupt PNG");
if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG");
if (pal_img_n) {
if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; }
if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG");
if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG");
pal_img_n = 4;
for (i=0; i < c.length; ++i)
palette[i*4+3] = stbi__get8(s);
} else {
if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG");
if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG");
has_trans = 1;
for (k=0; k < s->img_n; ++k)
tc[k] = (stbi_uc) (stbi__get16be(s) & 255) * stbi__depth_scale_table[depth]; // non 8-bit images will be larger
}
break;
}
case STBI__PNG_TYPE('I','D','A','T'): {
if (first) return stbi__err("first not IHDR", "Corrupt PNG");
if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG");
if (scan == STBI__SCAN_header) { s->img_n = pal_img_n; return 1; }
if ((int)(ioff + c.length) < (int)ioff) return 0;
if (ioff + c.length > idata_limit) {
stbi__uint32 idata_limit_old = idata_limit;
stbi_uc *p;
if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096;
while (ioff + c.length > idata_limit)
idata_limit *= 2;
STBI_NOTUSED(idata_limit_old);
p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory");
z->idata = p;
}
if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG");
ioff += c.length;
break;
}
case STBI__PNG_TYPE('I','E','N','D'): {
stbi__uint32 raw_len, bpl;
if (first) return stbi__err("first not IHDR", "Corrupt PNG");
if (scan != STBI__SCAN_load) return 1;
if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG");
// initial guess for decoded data size to avoid unnecessary reallocs
bpl = (s->img_x * depth + 7) / 8; // bytes per line, per component
raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */;
z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone);
if (z->expanded == NULL) return 0; // zlib should set error
STBI_FREE(z->idata); z->idata = NULL;
if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans)
s->img_out_n = s->img_n+1;
else
s->img_out_n = s->img_n;
if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, depth, color, interlace)) return 0;
if (has_trans)
if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0;
if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2)
stbi__de_iphone(z);
if (pal_img_n) {
// pal_img_n == 3 or 4
s->img_n = pal_img_n; // record the actual colors we had
s->img_out_n = pal_img_n;
if (req_comp >= 3) s->img_out_n = req_comp;
if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n))
return 0;
}
STBI_FREE(z->expanded); z->expanded = NULL;
return 1;
}
default:
// if critical, fail
if (first) return stbi__err("first not IHDR", "Corrupt PNG");
if ((c.type & (1 << 29)) == 0) {
#ifndef STBI_NO_FAILURE_STRINGS
// not threadsafe
static char invalid_chunk[] = "XXXX PNG chunk not known";
invalid_chunk[0] = STBI__BYTECAST(c.type >> 24);
invalid_chunk[1] = STBI__BYTECAST(c.type >> 16);
invalid_chunk[2] = STBI__BYTECAST(c.type >> 8);
invalid_chunk[3] = STBI__BYTECAST(c.type >> 0);
#endif
return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type");
}
stbi__skip(s, c.length);
break;
}
// end of PNG chunk, read and skip CRC
stbi__get32be(s);
}
}
static unsigned char *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp)
{
unsigned char *result=NULL;
if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error");
if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) {
result = p->out;
p->out = NULL;
if (req_comp && req_comp != p->s->img_out_n) {
result = stbi__convert_format(result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y);
p->s->img_out_n = req_comp;
if (result == NULL) return result;
}
*x = p->s->img_x;
*y = p->s->img_y;
if (n) *n = p->s->img_out_n;
}
STBI_FREE(p->out); p->out = NULL;
STBI_FREE(p->expanded); p->expanded = NULL;
STBI_FREE(p->idata); p->idata = NULL;
return result;
}
static unsigned char *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
stbi__png p;
p.s = s;
return stbi__do_png(&p, x,y,comp,req_comp);
}
static int stbi__png_test(stbi__context *s)
{
int r;
r = stbi__check_png_header(s);
stbi__rewind(s);
return r;
}
static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp)
{
if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) {
stbi__rewind( p->s );
return 0;
}
if (x) *x = p->s->img_x;
if (y) *y = p->s->img_y;
if (comp) *comp = p->s->img_n;
return 1;
}
static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp)
{
stbi__png p;
p.s = s;
return stbi__png_info_raw(&p, x, y, comp);
}
#endif
// Microsoft/Windows BMP image
#ifndef STBI_NO_BMP
static int stbi__bmp_test_raw(stbi__context *s)
{
int r;
int sz;
if (stbi__get8(s) != 'B') return 0;
if (stbi__get8(s) != 'M') return 0;
stbi__get32le(s); // discard filesize
stbi__get16le(s); // discard reserved
stbi__get16le(s); // discard reserved
stbi__get32le(s); // discard data offset
sz = stbi__get32le(s);
r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124);
return r;
}
static int stbi__bmp_test(stbi__context *s)
{
int r = stbi__bmp_test_raw(s);
stbi__rewind(s);
return r;
}
// returns 0..31 for the highest set bit
static int stbi__high_bit(unsigned int z)
{
int n=0;
if (z == 0) return -1;
if (z >= 0x10000) n += 16, z >>= 16;
if (z >= 0x00100) n += 8, z >>= 8;
if (z >= 0x00010) n += 4, z >>= 4;
if (z >= 0x00004) n += 2, z >>= 2;
if (z >= 0x00002) n += 1, z >>= 1;
return n;
}
static int stbi__bitcount(unsigned int a)
{
a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2
a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4
a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits
a = (a + (a >> 8)); // max 16 per 8 bits
a = (a + (a >> 16)); // max 32 per 8 bits
return a & 0xff;
}
static int stbi__shiftsigned(int v, int shift, int bits)
{
int result;
int z=0;
if (shift < 0) v <<= -shift;
else v >>= shift;
result = v;
z = bits;
while (z < 8) {
result += v >> z;
z += bits;
}
return result;
}
typedef struct
{
int bpp, offset, hsz;
unsigned int mr,mg,mb,ma, all_a;
} stbi__bmp_data;
static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info)
{
int hsz;
if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP");
stbi__get32le(s); // discard filesize
stbi__get16le(s); // discard reserved
stbi__get16le(s); // discard reserved
info->offset = stbi__get32le(s);
info->hsz = hsz = stbi__get32le(s);
if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown");
if (hsz == 12) {
s->img_x = stbi__get16le(s);
s->img_y = stbi__get16le(s);
} else {
s->img_x = stbi__get32le(s);
s->img_y = stbi__get32le(s);
}
if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP");
info->bpp = stbi__get16le(s);
if (info->bpp == 1) return stbi__errpuc("monochrome", "BMP type not supported: 1-bit");
if (hsz != 12) {
int compress = stbi__get32le(s);
if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE");
stbi__get32le(s); // discard sizeof
stbi__get32le(s); // discard hres
stbi__get32le(s); // discard vres
stbi__get32le(s); // discard colorsused
stbi__get32le(s); // discard max important
if (hsz == 40 || hsz == 56) {
if (hsz == 56) {
stbi__get32le(s);
stbi__get32le(s);
stbi__get32le(s);
stbi__get32le(s);
}
if (info->bpp == 16 || info->bpp == 32) {
info->mr = info->mg = info->mb = 0;
if (compress == 0) {
if (info->bpp == 32) {
info->mr = 0xffu << 16;
info->mg = 0xffu << 8;
info->mb = 0xffu << 0;
info->ma = 0xffu << 24;
info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0
} else {
info->mr = 31u << 10;
info->mg = 31u << 5;
info->mb = 31u << 0;
}
} else if (compress == 3) {
info->mr = stbi__get32le(s);
info->mg = stbi__get32le(s);
info->mb = stbi__get32le(s);
// not documented, but generated by photoshop and handled by mspaint
if (info->mr == info->mg && info->mg == info->mb) {
// ?!?!?
return stbi__errpuc("bad BMP", "bad BMP");
}
} else
return stbi__errpuc("bad BMP", "bad BMP");
}
} else {
int i;
if (hsz != 108 && hsz != 124)
return stbi__errpuc("bad BMP", "bad BMP");
info->mr = stbi__get32le(s);
info->mg = stbi__get32le(s);
info->mb = stbi__get32le(s);
info->ma = stbi__get32le(s);
stbi__get32le(s); // discard color space
for (i=0; i < 12; ++i)
stbi__get32le(s); // discard color space parameters
if (hsz == 124) {
stbi__get32le(s); // discard rendering intent
stbi__get32le(s); // discard offset of profile data
stbi__get32le(s); // discard size of profile data
stbi__get32le(s); // discard reserved
}
}
}
return (void *) 1;
}
static stbi_uc *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
stbi_uc *out;
unsigned int mr=0,mg=0,mb=0,ma=0, all_a;
stbi_uc pal[256][4];
int psize=0,i,j,width;
int flip_vertically, pad, target;
stbi__bmp_data info;
info.all_a = 255;
if (stbi__bmp_parse_header(s, &info) == NULL)
return NULL; // error code already set
flip_vertically = ((int) s->img_y) > 0;
s->img_y = abs((int) s->img_y);
mr = info.mr;
mg = info.mg;
mb = info.mb;
ma = info.ma;
all_a = info.all_a;
if (info.hsz == 12) {
if (info.bpp < 24)
psize = (info.offset - 14 - 24) / 3;
} else {
if (info.bpp < 16)
psize = (info.offset - 14 - info.hsz) >> 2;
}
s->img_n = ma ? 4 : 3;
if (req_comp && req_comp >= 3) // we can directly decode 3 or 4
target = req_comp;
else
target = s->img_n; // if they want monochrome, we'll post-convert
out = (stbi_uc *) stbi__malloc(target * s->img_x * s->img_y);
if (!out) return stbi__errpuc("outofmem", "Out of memory");
if (info.bpp < 16) {
int z=0;
if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); }
for (i=0; i < psize; ++i) {
pal[i][2] = stbi__get8(s);
pal[i][1] = stbi__get8(s);
pal[i][0] = stbi__get8(s);
if (info.hsz != 12) stbi__get8(s);
pal[i][3] = 255;
}
stbi__skip(s, info.offset - 14 - info.hsz - psize * (info.hsz == 12 ? 3 : 4));
if (info.bpp == 4) width = (s->img_x + 1) >> 1;
else if (info.bpp == 8) width = s->img_x;
else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); }
pad = (-width)&3;
for (j=0; j < (int) s->img_y; ++j) {
for (i=0; i < (int) s->img_x; i += 2) {
int v=stbi__get8(s),v2=0;
if (info.bpp == 4) {
v2 = v & 15;
v >>= 4;
}
out[z++] = pal[v][0];
out[z++] = pal[v][1];
out[z++] = pal[v][2];
if (target == 4) out[z++] = 255;
if (i+1 == (int) s->img_x) break;
v = (info.bpp == 8) ? stbi__get8(s) : v2;
out[z++] = pal[v][0];
out[z++] = pal[v][1];
out[z++] = pal[v][2];
if (target == 4) out[z++] = 255;
}
stbi__skip(s, pad);
}
} else {
int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0;
int z = 0;
int easy=0;
stbi__skip(s, info.offset - 14 - info.hsz);
if (info.bpp == 24) width = 3 * s->img_x;
else if (info.bpp == 16) width = 2*s->img_x;
else /* bpp = 32 and pad = 0 */ width=0;
pad = (-width) & 3;
if (info.bpp == 24) {
easy = 1;
} else if (info.bpp == 32) {
if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000)
easy = 2;
}
if (!easy) {
if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); }
// right shift amt to put high bit in position #7
rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr);
gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg);
bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb);
ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma);
}
for (j=0; j < (int) s->img_y; ++j) {
if (easy) {
for (i=0; i < (int) s->img_x; ++i) {
unsigned char a;
out[z+2] = stbi__get8(s);
out[z+1] = stbi__get8(s);
out[z+0] = stbi__get8(s);
z += 3;
a = (easy == 2 ? stbi__get8(s) : 255);
all_a |= a;
if (target == 4) out[z++] = a;
}
} else {
int bpp = info.bpp;
for (i=0; i < (int) s->img_x; ++i) {
stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s));
int a;
out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount));
out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount));
out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount));
a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255);
all_a |= a;
if (target == 4) out[z++] = STBI__BYTECAST(a);
}
}
stbi__skip(s, pad);
}
}
// if alpha channel is all 0s, replace with all 255s
if (target == 4 && all_a == 0)
for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4)
out[i] = 255;
if (flip_vertically) {
stbi_uc t;
for (j=0; j < (int) s->img_y>>1; ++j) {
stbi_uc *p1 = out + j *s->img_x*target;
stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target;
for (i=0; i < (int) s->img_x*target; ++i) {
t = p1[i], p1[i] = p2[i], p2[i] = t;
}
}
}
if (req_comp && req_comp != target) {
out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y);
if (out == NULL) return out; // stbi__convert_format frees input on failure
}
*x = s->img_x;
*y = s->img_y;
if (comp) *comp = s->img_n;
return out;
}
#endif
// Targa Truevision - TGA
// by Jonathan Dummer
#ifndef STBI_NO_TGA
// returns STBI_rgb or whatever, 0 on error
static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16)
{
// only RGB or RGBA (incl. 16bit) or grey allowed
if(is_rgb16) *is_rgb16 = 0;
switch(bits_per_pixel) {
case 8: return STBI_grey;
case 16: if(is_grey) return STBI_grey_alpha;
// else: fall-through
case 15: if(is_rgb16) *is_rgb16 = 1;
return STBI_rgb;
case 24: // fall-through
case 32: return bits_per_pixel/8;
default: return 0;
}
}
static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp)
{
int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp;
int sz, tga_colormap_type;
stbi__get8(s); // discard Offset
tga_colormap_type = stbi__get8(s); // colormap type
if( tga_colormap_type > 1 ) {
stbi__rewind(s);
return 0; // only RGB or indexed allowed
}
tga_image_type = stbi__get8(s); // image type
if ( tga_colormap_type == 1 ) { // colormapped (paletted) image
if (tga_image_type != 1 && tga_image_type != 9) {
stbi__rewind(s);
return 0;
}
stbi__skip(s,4); // skip index of first colormap entry and number of entries
sz = stbi__get8(s); // check bits per palette color entry
if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) {
stbi__rewind(s);
return 0;
}
stbi__skip(s,4); // skip image x and y origin
tga_colormap_bpp = sz;
} else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE
if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) {
stbi__rewind(s);
return 0; // only RGB or grey allowed, +/- RLE
}
stbi__skip(s,9); // skip colormap specification and image x/y origin
tga_colormap_bpp = 0;
}
tga_w = stbi__get16le(s);
if( tga_w < 1 ) {
stbi__rewind(s);
return 0; // test width
}
tga_h = stbi__get16le(s);
if( tga_h < 1 ) {
stbi__rewind(s);
return 0; // test height
}
tga_bits_per_pixel = stbi__get8(s); // bits per pixel
stbi__get8(s); // ignore alpha bits
if (tga_colormap_bpp != 0) {
if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) {
// when using a colormap, tga_bits_per_pixel is the size of the indexes
// I don't think anything but 8 or 16bit indexes makes sense
stbi__rewind(s);
return 0;
}
tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL);
} else {
tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL);
}
if(!tga_comp) {
stbi__rewind(s);
return 0;
}
if (x) *x = tga_w;
if (y) *y = tga_h;
if (comp) *comp = tga_comp;
return 1; // seems to have passed everything
}
static int stbi__tga_test(stbi__context *s)
{
int res = 0;
int sz, tga_color_type;
stbi__get8(s); // discard Offset
tga_color_type = stbi__get8(s); // color type
if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed
sz = stbi__get8(s); // image type
if ( tga_color_type == 1 ) { // colormapped (paletted) image
if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9
stbi__skip(s,4); // skip index of first colormap entry and number of entries
sz = stbi__get8(s); // check bits per palette color entry
if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd;
stbi__skip(s,4); // skip image x and y origin
} else { // "normal" image w/o colormap
if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE
stbi__skip(s,9); // skip colormap specification and image x/y origin
}
if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width
if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height
sz = stbi__get8(s); // bits per pixel
if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index
if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd;
res = 1; // if we got this far, everything's good and we can return 1 instead of 0
errorEnd:
stbi__rewind(s);
return res;
}
// read 16bit value and convert to 24bit RGB
void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out)
{
stbi__uint16 px = stbi__get16le(s);
stbi__uint16 fiveBitMask = 31;
// we have 3 channels with 5bits each
int r = (px >> 10) & fiveBitMask;
int g = (px >> 5) & fiveBitMask;
int b = px & fiveBitMask;
// Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later
out[0] = (r * 255)/31;
out[1] = (g * 255)/31;
out[2] = (b * 255)/31;
// some people claim that the most significant bit might be used for alpha
// (possibly if an alpha-bit is set in the "image descriptor byte")
// but that only made 16bit test images completely translucent..
// so let's treat all 15 and 16bit TGAs as RGB with no alpha.
}
static stbi_uc *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
// read in the TGA header stuff
int tga_offset = stbi__get8(s);
int tga_indexed = stbi__get8(s);
int tga_image_type = stbi__get8(s);
int tga_is_RLE = 0;
int tga_palette_start = stbi__get16le(s);
int tga_palette_len = stbi__get16le(s);
int tga_palette_bits = stbi__get8(s);
int tga_x_origin = stbi__get16le(s);
int tga_y_origin = stbi__get16le(s);
int tga_width = stbi__get16le(s);
int tga_height = stbi__get16le(s);
int tga_bits_per_pixel = stbi__get8(s);
int tga_comp, tga_rgb16=0;
int tga_inverted = stbi__get8(s);
// int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?)
// image data
unsigned char *tga_data;
unsigned char *tga_palette = NULL;
int i, j;
unsigned char raw_data[4];
int RLE_count = 0;
int RLE_repeating = 0;
int read_next_pixel = 1;
// do a tiny bit of precessing
if ( tga_image_type >= 8 )
{
tga_image_type -= 8;
tga_is_RLE = 1;
}
tga_inverted = 1 - ((tga_inverted >> 5) & 1);
// If I'm paletted, then I'll use the number of bits from the palette
if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16);
else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16);
if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency
return stbi__errpuc("bad format", "Can't find out TGA pixelformat");
// tga info
*x = tga_width;
*y = tga_height;
if (comp) *comp = tga_comp;
tga_data = (unsigned char*)stbi__malloc( (size_t)tga_width * tga_height * tga_comp );
if (!tga_data) return stbi__errpuc("outofmem", "Out of memory");
// skip to the data's starting position (offset usually = 0)
stbi__skip(s, tga_offset );
if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) {
for (i=0; i < tga_height; ++i) {
int row = tga_inverted ? tga_height -i - 1 : i;
stbi_uc *tga_row = tga_data + row*tga_width*tga_comp;
stbi__getn(s, tga_row, tga_width * tga_comp);
}
} else {
// do I need to load a palette?
if ( tga_indexed)
{
// any data to skip? (offset usually = 0)
stbi__skip(s, tga_palette_start );
// load the palette
tga_palette = (unsigned char*)stbi__malloc( tga_palette_len * tga_comp );
if (!tga_palette) {
STBI_FREE(tga_data);
return stbi__errpuc("outofmem", "Out of memory");
}
if (tga_rgb16) {
stbi_uc *pal_entry = tga_palette;
STBI_ASSERT(tga_comp == STBI_rgb);
for (i=0; i < tga_palette_len; ++i) {
stbi__tga_read_rgb16(s, pal_entry);
pal_entry += tga_comp;
}
} else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) {
STBI_FREE(tga_data);
STBI_FREE(tga_palette);
return stbi__errpuc("bad palette", "Corrupt TGA");
}
}
// load the data
for (i=0; i < tga_width * tga_height; ++i)
{
// if I'm in RLE mode, do I need to get a RLE stbi__pngchunk?
if ( tga_is_RLE )
{
if ( RLE_count == 0 )
{
// yep, get the next byte as a RLE command
int RLE_cmd = stbi__get8(s);
RLE_count = 1 + (RLE_cmd & 127);
RLE_repeating = RLE_cmd >> 7;
read_next_pixel = 1;
} else if ( !RLE_repeating )
{
read_next_pixel = 1;
}
} else
{
read_next_pixel = 1;
}
// OK, if I need to read a pixel, do it now
if ( read_next_pixel )
{
// load however much data we did have
if ( tga_indexed )
{
// read in index, then perform the lookup
int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s);
if ( pal_idx >= tga_palette_len ) {
// invalid index
pal_idx = 0;
}
pal_idx *= tga_comp;
for (j = 0; j < tga_comp; ++j) {
raw_data[j] = tga_palette[pal_idx+j];
}
} else if(tga_rgb16) {
STBI_ASSERT(tga_comp == STBI_rgb);
stbi__tga_read_rgb16(s, raw_data);
} else {
// read in the data raw
for (j = 0; j < tga_comp; ++j) {
raw_data[j] = stbi__get8(s);
}
}
// clear the reading flag for the next pixel
read_next_pixel = 0;
} // end of reading a pixel
// copy data
for (j = 0; j < tga_comp; ++j)
tga_data[i*tga_comp+j] = raw_data[j];
// in case we're in RLE mode, keep counting down
--RLE_count;
}
// do I need to invert the image?
if ( tga_inverted )
{
for (j = 0; j*2 < tga_height; ++j)
{
int index1 = j * tga_width * tga_comp;
int index2 = (tga_height - 1 - j) * tga_width * tga_comp;
for (i = tga_width * tga_comp; i > 0; --i)
{
unsigned char temp = tga_data[index1];
tga_data[index1] = tga_data[index2];
tga_data[index2] = temp;
++index1;
++index2;
}
}
}
// clear my palette, if I had one
if ( tga_palette != NULL )
{
STBI_FREE( tga_palette );
}
}
// swap RGB - if the source data was RGB16, it already is in the right order
if (tga_comp >= 3 && !tga_rgb16)
{
unsigned char* tga_pixel = tga_data;
for (i=0; i < tga_width * tga_height; ++i)
{
unsigned char temp = tga_pixel[0];
tga_pixel[0] = tga_pixel[2];
tga_pixel[2] = temp;
tga_pixel += tga_comp;
}
}
// convert to target component count
if (req_comp && req_comp != tga_comp)
tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height);
// the things I do to get rid of an error message, and yet keep
// Microsoft's C compilers happy... [8^(
tga_palette_start = tga_palette_len = tga_palette_bits =
tga_x_origin = tga_y_origin = 0;
// OK, done
return tga_data;
}
#endif
// *************************************************************************************************
// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB
#ifndef STBI_NO_PSD
static int stbi__psd_test(stbi__context *s)
{
int r = (stbi__get32be(s) == 0x38425053);
stbi__rewind(s);
return r;
}
static stbi_uc *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
int pixelCount;
int channelCount, compression;
int channel, i, count, len;
int bitdepth;
int w,h;
stbi_uc *out;
// Check identifier
if (stbi__get32be(s) != 0x38425053) // "8BPS"
return stbi__errpuc("not PSD", "Corrupt PSD image");
// Check file type version.
if (stbi__get16be(s) != 1)
return stbi__errpuc("wrong version", "Unsupported version of PSD image");
// Skip 6 reserved bytes.
stbi__skip(s, 6 );
// Read the number of channels (R, G, B, A, etc).
channelCount = stbi__get16be(s);
if (channelCount < 0 || channelCount > 16)
return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image");
// Read the rows and columns of the image.
h = stbi__get32be(s);
w = stbi__get32be(s);
// Make sure the depth is 8 bits.
bitdepth = stbi__get16be(s);
if (bitdepth != 8 && bitdepth != 16)
return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit");
// Make sure the color mode is RGB.
// Valid options are:
// 0: Bitmap
// 1: Grayscale
// 2: Indexed color
// 3: RGB color
// 4: CMYK color
// 7: Multichannel
// 8: Duotone
// 9: Lab color
if (stbi__get16be(s) != 3)
return stbi__errpuc("wrong color format", "PSD is not in RGB color format");
// Skip the Mode Data. (It's the palette for indexed color; other info for other modes.)
stbi__skip(s,stbi__get32be(s) );
// Skip the image resources. (resolution, pen tool paths, etc)
stbi__skip(s, stbi__get32be(s) );
// Skip the reserved data.
stbi__skip(s, stbi__get32be(s) );
// Find out if the data is compressed.
// Known values:
// 0: no compression
// 1: RLE compressed
compression = stbi__get16be(s);
if (compression > 1)
return stbi__errpuc("bad compression", "PSD has an unknown compression format");
// Create the destination image.
out = (stbi_uc *) stbi__malloc(4 * w*h);
if (!out) return stbi__errpuc("outofmem", "Out of memory");
pixelCount = w*h;
// Initialize the data to zero.
//memset( out, 0, pixelCount * 4 );
// Finally, the image data.
if (compression) {
// RLE as used by .PSD and .TIFF
// Loop until you get the number of unpacked bytes you are expecting:
// Read the next source byte into n.
// If n is between 0 and 127 inclusive, copy the next n+1 bytes literally.
// Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times.
// Else if n is 128, noop.
// Endloop
// The RLE-compressed data is preceeded by a 2-byte data count for each row in the data,
// which we're going to just skip.
stbi__skip(s, h * channelCount * 2 );
// Read the RLE data by channel.
for (channel = 0; channel < 4; channel++) {
stbi_uc *p;
p = out+channel;
if (channel >= channelCount) {
// Fill this channel with default data.
for (i = 0; i < pixelCount; i++, p += 4)
*p = (channel == 3 ? 255 : 0);
} else {
// Read the RLE data.
count = 0;
while (count < pixelCount) {
len = stbi__get8(s);
if (len == 128) {
// No-op.
} else if (len < 128) {
// Copy next len+1 bytes literally.
len++;
count += len;
while (len) {
*p = stbi__get8(s);
p += 4;
len--;
}
} else if (len > 128) {
stbi_uc val;
// Next -len+1 bytes in the dest are replicated from next source byte.
// (Interpret len as a negative 8-bit int.)
len ^= 0x0FF;
len += 2;
val = stbi__get8(s);
count += len;
while (len) {
*p = val;
p += 4;
len--;
}
}
}
}
}
} else {
// We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...)
// where each channel consists of an 8-bit value for each pixel in the image.
// Read the data by channel.
for (channel = 0; channel < 4; channel++) {
stbi_uc *p;
p = out + channel;
if (channel >= channelCount) {
// Fill this channel with default data.
stbi_uc val = channel == 3 ? 255 : 0;
for (i = 0; i < pixelCount; i++, p += 4)
*p = val;
} else {
// Read the data.
if (bitdepth == 16) {
for (i = 0; i < pixelCount; i++, p += 4)
*p = (stbi_uc) (stbi__get16be(s) >> 8);
} else {
for (i = 0; i < pixelCount; i++, p += 4)
*p = stbi__get8(s);
}
}
}
}
if (req_comp && req_comp != 4) {
out = stbi__convert_format(out, 4, req_comp, w, h);
if (out == NULL) return out; // stbi__convert_format frees input on failure
}
if (comp) *comp = 4;
*y = h;
*x = w;
return out;
}
#endif
// *************************************************************************************************
// Softimage PIC loader
// by Tom Seddon
//
// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format
// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/
#ifndef STBI_NO_PIC
static int stbi__pic_is4(stbi__context *s,const char *str)
{
int i;
for (i=0; i<4; ++i)
if (stbi__get8(s) != (stbi_uc)str[i])
return 0;
return 1;
}
static int stbi__pic_test_core(stbi__context *s)
{
int i;
if (!stbi__pic_is4(s,"\x53\x80\xF6\x34"))
return 0;
for(i=0;i<84;++i)
stbi__get8(s);
if (!stbi__pic_is4(s,"PICT"))
return 0;
return 1;
}
typedef struct
{
stbi_uc size,type,channel;
} stbi__pic_packet;
static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest)
{
int mask=0x80, i;
for (i=0; i<4; ++i, mask>>=1) {
if (channel & mask) {
if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short");
dest[i]=stbi__get8(s);
}
}
return dest;
}
static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src)
{
int mask=0x80,i;
for (i=0;i<4; ++i, mask>>=1)
if (channel&mask)
dest[i]=src[i];
}
static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result)
{
int act_comp=0,num_packets=0,y,chained;
stbi__pic_packet packets[10];
// this will (should...) cater for even some bizarre stuff like having data
// for the same channel in multiple packets.
do {
stbi__pic_packet *packet;
if (num_packets==sizeof(packets)/sizeof(packets[0]))
return stbi__errpuc("bad format","too many packets");
packet = &packets[num_packets++];
chained = stbi__get8(s);
packet->size = stbi__get8(s);
packet->type = stbi__get8(s);
packet->channel = stbi__get8(s);
act_comp |= packet->channel;
if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)");
if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp");
} while (chained);
*comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel?
for(y=0; y<height; ++y) {
int packet_idx;
for(packet_idx=0; packet_idx < num_packets; ++packet_idx) {
stbi__pic_packet *packet = &packets[packet_idx];
stbi_uc *dest = result+y*width*4;
switch (packet->type) {
default:
return stbi__errpuc("bad format","packet has bad compression type");
case 0: {//uncompressed
int x;
for(x=0;x<width;++x, dest+=4)
if (!stbi__readval(s,packet->channel,dest))
return 0;
break;
}
case 1://Pure RLE
{
int left=width, i;
while (left>0) {
stbi_uc count,value[4];
count=stbi__get8(s);
if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)");
if (count > left)
count = (stbi_uc) left;
if (!stbi__readval(s,packet->channel,value)) return 0;
for(i=0; i<count; ++i,dest+=4)
stbi__copyval(packet->channel,dest,value);
left -= count;
}
}
break;
case 2: {//Mixed RLE
int left=width;
while (left>0) {
int count = stbi__get8(s), i;
if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)");
if (count >= 128) { // Repeated
stbi_uc value[4];
if (count==128)
count = stbi__get16be(s);
else
count -= 127;
if (count > left)
return stbi__errpuc("bad file","scanline overrun");
if (!stbi__readval(s,packet->channel,value))
return 0;
for(i=0;i<count;++i, dest += 4)
stbi__copyval(packet->channel,dest,value);
} else { // Raw
++count;
if (count>left) return stbi__errpuc("bad file","scanline overrun");
for(i=0;i<count;++i, dest+=4)
if (!stbi__readval(s,packet->channel,dest))
return 0;
}
left-=count;
}
break;
}
}
}
}
return result;
}
static stbi_uc *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp)
{
stbi_uc *result;
int i, x,y;
for (i=0; i<92; ++i)
stbi__get8(s);
x = stbi__get16be(s);
y = stbi__get16be(s);
if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)");
if ((1 << 28) / x < y) return stbi__errpuc("too large", "Image too large to decode");
stbi__get32be(s); //skip `ratio'
stbi__get16be(s); //skip `fields'
stbi__get16be(s); //skip `pad'
// intermediate buffer is RGBA
result = (stbi_uc *) stbi__malloc(x*y*4);
memset(result, 0xff, x*y*4);
if (!stbi__pic_load_core(s,x,y,comp, result)) {
STBI_FREE(result);
result=0;
}
*px = x;
*py = y;
if (req_comp == 0) req_comp = *comp;
result=stbi__convert_format(result,4,req_comp,x,y);
return result;
}
static int stbi__pic_test(stbi__context *s)
{
int r = stbi__pic_test_core(s);
stbi__rewind(s);
return r;
}
#endif
// *************************************************************************************************
// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb
#ifndef STBI_NO_GIF
typedef struct
{
stbi__int16 prefix;
stbi_uc first;
stbi_uc suffix;
} stbi__gif_lzw;
typedef struct
{
int w,h;
stbi_uc *out, *old_out; // output buffer (always 4 components)
int flags, bgindex, ratio, transparent, eflags, delay;
stbi_uc pal[256][4];
stbi_uc lpal[256][4];
stbi__gif_lzw codes[4096];
stbi_uc *color_table;
int parse, step;
int lflags;
int start_x, start_y;
int max_x, max_y;
int cur_x, cur_y;
int line_size;
} stbi__gif;
static int stbi__gif_test_raw(stbi__context *s)
{
int sz;
if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0;
sz = stbi__get8(s);
if (sz != '9' && sz != '7') return 0;
if (stbi__get8(s) != 'a') return 0;
return 1;
}
static int stbi__gif_test(stbi__context *s)
{
int r = stbi__gif_test_raw(s);
stbi__rewind(s);
return r;
}
static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp)
{
int i;
for (i=0; i < num_entries; ++i) {
pal[i][2] = stbi__get8(s);
pal[i][1] = stbi__get8(s);
pal[i][0] = stbi__get8(s);
pal[i][3] = transp == i ? 0 : 255;
}
}
static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info)
{
stbi_uc version;
if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8')
return stbi__err("not GIF", "Corrupt GIF");
version = stbi__get8(s);
if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF");
if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF");
stbi__g_failure_reason = "";
g->w = stbi__get16le(s);
g->h = stbi__get16le(s);
g->flags = stbi__get8(s);
g->bgindex = stbi__get8(s);
g->ratio = stbi__get8(s);
g->transparent = -1;
if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments
if (is_info) return 1;
if (g->flags & 0x80)
stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1);
return 1;
}
static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp)
{
stbi__gif g;
if (!stbi__gif_header(s, &g, comp, 1)) {
stbi__rewind( s );
return 0;
}
if (x) *x = g.w;
if (y) *y = g.h;
return 1;
}
static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code)
{
stbi_uc *p, *c;
// recurse to decode the prefixes, since the linked-list is backwards,
// and working backwards through an interleaved image would be nasty
if (g->codes[code].prefix >= 0)
stbi__out_gif_code(g, g->codes[code].prefix);
if (g->cur_y >= g->max_y) return;
p = &g->out[g->cur_x + g->cur_y];
c = &g->color_table[g->codes[code].suffix * 4];
if (c[3] >= 128) {
p[0] = c[2];
p[1] = c[1];
p[2] = c[0];
p[3] = c[3];
}
g->cur_x += 4;
if (g->cur_x >= g->max_x) {
g->cur_x = g->start_x;
g->cur_y += g->step;
while (g->cur_y >= g->max_y && g->parse > 0) {
g->step = (1 << g->parse) * g->line_size;
g->cur_y = g->start_y + (g->step >> 1);
--g->parse;
}
}
}
static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g)
{
stbi_uc lzw_cs;
stbi__int32 len, init_code;
stbi__uint32 first;
stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear;
stbi__gif_lzw *p;
lzw_cs = stbi__get8(s);
if (lzw_cs > 12) return NULL;
clear = 1 << lzw_cs;
first = 1;
codesize = lzw_cs + 1;
codemask = (1 << codesize) - 1;
bits = 0;
valid_bits = 0;
for (init_code = 0; init_code < clear; init_code++) {
g->codes[init_code].prefix = -1;
g->codes[init_code].first = (stbi_uc) init_code;
g->codes[init_code].suffix = (stbi_uc) init_code;
}
// support no starting clear code
avail = clear+2;
oldcode = -1;
len = 0;
for(;;) {
if (valid_bits < codesize) {
if (len == 0) {
len = stbi__get8(s); // start new block
if (len == 0)
return g->out;
}
--len;
bits |= (stbi__int32) stbi__get8(s) << valid_bits;
valid_bits += 8;
} else {
stbi__int32 code = bits & codemask;
bits >>= codesize;
valid_bits -= codesize;
// @OPTIMIZE: is there some way we can accelerate the non-clear path?
if (code == clear) { // clear code
codesize = lzw_cs + 1;
codemask = (1 << codesize) - 1;
avail = clear + 2;
oldcode = -1;
first = 0;
} else if (code == clear + 1) { // end of stream code
stbi__skip(s, len);
while ((len = stbi__get8(s)) > 0)
stbi__skip(s,len);
return g->out;
} else if (code <= avail) {
if (first) return stbi__errpuc("no clear code", "Corrupt GIF");
if (oldcode >= 0) {
p = &g->codes[avail++];
if (avail > 4096) return stbi__errpuc("too many codes", "Corrupt GIF");
p->prefix = (stbi__int16) oldcode;
p->first = g->codes[oldcode].first;
p->suffix = (code == avail) ? p->first : g->codes[code].first;
} else if (code == avail)
return stbi__errpuc("illegal code in raster", "Corrupt GIF");
stbi__out_gif_code(g, (stbi__uint16) code);
if ((avail & codemask) == 0 && avail <= 0x0FFF) {
codesize++;
codemask = (1 << codesize) - 1;
}
oldcode = code;
} else {
return stbi__errpuc("illegal code in raster", "Corrupt GIF");
}
}
}
}
static void stbi__fill_gif_background(stbi__gif *g, int x0, int y0, int x1, int y1)
{
int x, y;
stbi_uc *c = g->pal[g->bgindex];
for (y = y0; y < y1; y += 4 * g->w) {
for (x = x0; x < x1; x += 4) {
stbi_uc *p = &g->out[y + x];
p[0] = c[2];
p[1] = c[1];
p[2] = c[0];
p[3] = 0;
}
}
}
// this function is designed to support animated gifs, although stb_image doesn't support it
static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp)
{
int i;
stbi_uc *prev_out = 0;
if (g->out == 0 && !stbi__gif_header(s, g, comp,0))
return 0; // stbi__g_failure_reason set by stbi__gif_header
prev_out = g->out;
g->out = (stbi_uc *) stbi__malloc(4 * g->w * g->h);
if (g->out == 0) return stbi__errpuc("outofmem", "Out of memory");
switch ((g->eflags & 0x1C) >> 2) {
case 0: // unspecified (also always used on 1st frame)
stbi__fill_gif_background(g, 0, 0, 4 * g->w, 4 * g->w * g->h);
break;
case 1: // do not dispose
if (prev_out) memcpy(g->out, prev_out, 4 * g->w * g->h);
g->old_out = prev_out;
break;
case 2: // dispose to background
if (prev_out) memcpy(g->out, prev_out, 4 * g->w * g->h);
stbi__fill_gif_background(g, g->start_x, g->start_y, g->max_x, g->max_y);
break;
case 3: // dispose to previous
if (g->old_out) {
for (i = g->start_y; i < g->max_y; i += 4 * g->w)
memcpy(&g->out[i + g->start_x], &g->old_out[i + g->start_x], g->max_x - g->start_x);
}
break;
}
for (;;) {
switch (stbi__get8(s)) {
case 0x2C: /* Image Descriptor */
{
int prev_trans = -1;
stbi__int32 x, y, w, h;
stbi_uc *o;
x = stbi__get16le(s);
y = stbi__get16le(s);
w = stbi__get16le(s);
h = stbi__get16le(s);
if (((x + w) > (g->w)) || ((y + h) > (g->h)))
return stbi__errpuc("bad Image Descriptor", "Corrupt GIF");
g->line_size = g->w * 4;
g->start_x = x * 4;
g->start_y = y * g->line_size;
g->max_x = g->start_x + w * 4;
g->max_y = g->start_y + h * g->line_size;
g->cur_x = g->start_x;
g->cur_y = g->start_y;
g->lflags = stbi__get8(s);
if (g->lflags & 0x40) {
g->step = 8 * g->line_size; // first interlaced spacing
g->parse = 3;
} else {
g->step = g->line_size;
g->parse = 0;
}
if (g->lflags & 0x80) {
stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1);
g->color_table = (stbi_uc *) g->lpal;
} else if (g->flags & 0x80) {
if (g->transparent >= 0 && (g->eflags & 0x01)) {
prev_trans = g->pal[g->transparent][3];
g->pal[g->transparent][3] = 0;
}
g->color_table = (stbi_uc *) g->pal;
} else
return stbi__errpuc("missing color table", "Corrupt GIF");
o = stbi__process_gif_raster(s, g);
if (o == NULL) return NULL;
if (prev_trans != -1)
g->pal[g->transparent][3] = (stbi_uc) prev_trans;
return o;
}
case 0x21: // Comment Extension.
{
int len;
if (stbi__get8(s) == 0xF9) { // Graphic Control Extension.
len = stbi__get8(s);
if (len == 4) {
g->eflags = stbi__get8(s);
g->delay = stbi__get16le(s);
g->transparent = stbi__get8(s);
} else {
stbi__skip(s, len);
break;
}
}
while ((len = stbi__get8(s)) != 0)
stbi__skip(s, len);
break;
}
case 0x3B: // gif stream termination code
return (stbi_uc *) s; // using '1' causes warning on some compilers
default:
return stbi__errpuc("unknown code", "Corrupt GIF");
}
}
STBI_NOTUSED(req_comp);
}
static stbi_uc *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
stbi_uc *u = 0;
stbi__gif g;
memset(&g, 0, sizeof(g));
u = stbi__gif_load_next(s, &g, comp, req_comp);
if (u == (stbi_uc *) s) u = 0; // end of animated gif marker
if (u) {
*x = g.w;
*y = g.h;
if (req_comp && req_comp != 4)
u = stbi__convert_format(u, 4, req_comp, g.w, g.h);
}
else if (g.out)
STBI_FREE(g.out);
return u;
}
static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp)
{
return stbi__gif_info_raw(s,x,y,comp);
}
#endif
// *************************************************************************************************
// Radiance RGBE HDR loader
// originally by Nicolas Schulz
#ifndef STBI_NO_HDR
static int stbi__hdr_test_core(stbi__context *s)
{
const char *signature = "#?RADIANCE\n";
int i;
for (i=0; signature[i]; ++i)
if (stbi__get8(s) != signature[i])
return 0;
return 1;
}
static int stbi__hdr_test(stbi__context* s)
{
int r = stbi__hdr_test_core(s);
stbi__rewind(s);
return r;
}
#define STBI__HDR_BUFLEN 1024
static char *stbi__hdr_gettoken(stbi__context *z, char *buffer)
{
int len=0;
char c = '\0';
c = (char) stbi__get8(z);
while (!stbi__at_eof(z) && c != '\n') {
buffer[len++] = c;
if (len == STBI__HDR_BUFLEN-1) {
// flush to end of line
while (!stbi__at_eof(z) && stbi__get8(z) != '\n')
;
break;
}
c = (char) stbi__get8(z);
}
buffer[len] = 0;
return buffer;
}
static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp)
{
if ( input[3] != 0 ) {
float f1;
// Exponent
f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8));
if (req_comp <= 2)
output[0] = (input[0] + input[1] + input[2]) * f1 / 3;
else {
output[0] = input[0] * f1;
output[1] = input[1] * f1;
output[2] = input[2] * f1;
}
if (req_comp == 2) output[1] = 1;
if (req_comp == 4) output[3] = 1;
} else {
switch (req_comp) {
case 4: output[3] = 1; /* fallthrough */
case 3: output[0] = output[1] = output[2] = 0;
break;
case 2: output[1] = 1; /* fallthrough */
case 1: output[0] = 0;
break;
}
}
}
static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
char buffer[STBI__HDR_BUFLEN];
char *token;
int valid = 0;
int width, height;
stbi_uc *scanline;
float *hdr_data;
int len;
unsigned char count, value;
int i, j, k, c1,c2, z;
// Check identifier
if (strcmp(stbi__hdr_gettoken(s,buffer), "#?RADIANCE") != 0)
return stbi__errpf("not HDR", "Corrupt HDR image");
// Parse header
for(;;) {
token = stbi__hdr_gettoken(s,buffer);
if (token[0] == 0) break;
if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1;
}
if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format");
// Parse width and height
// can't use sscanf() if we're not using stdio!
token = stbi__hdr_gettoken(s,buffer);
if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format");
token += 3;
height = (int) strtol(token, &token, 10);
while (*token == ' ') ++token;
if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format");
token += 3;
width = (int) strtol(token, NULL, 10);
*x = width;
*y = height;
if (comp) *comp = 3;
if (req_comp == 0) req_comp = 3;
// Read data
hdr_data = (float *) stbi__malloc(height * width * req_comp * sizeof(float));
// Load image data
// image data is stored as some number of sca
if ( width < 8 || width >= 32768) {
// Read flat data
for (j=0; j < height; ++j) {
for (i=0; i < width; ++i) {
stbi_uc rgbe[4];
main_decode_loop:
stbi__getn(s, rgbe, 4);
stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp);
}
}
} else {
// Read RLE-encoded data
scanline = NULL;
for (j = 0; j < height; ++j) {
c1 = stbi__get8(s);
c2 = stbi__get8(s);
len = stbi__get8(s);
if (c1 != 2 || c2 != 2 || (len & 0x80)) {
// not run-length encoded, so we have to actually use THIS data as a decoded
// pixel (note this can't be a valid pixel--one of RGB must be >= 128)
stbi_uc rgbe[4];
rgbe[0] = (stbi_uc) c1;
rgbe[1] = (stbi_uc) c2;
rgbe[2] = (stbi_uc) len;
rgbe[3] = (stbi_uc) stbi__get8(s);
stbi__hdr_convert(hdr_data, rgbe, req_comp);
i = 1;
j = 0;
STBI_FREE(scanline);
goto main_decode_loop; // yes, this makes no sense
}
len <<= 8;
len |= stbi__get8(s);
if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); }
if (scanline == NULL) scanline = (stbi_uc *) stbi__malloc(width * 4);
for (k = 0; k < 4; ++k) {
i = 0;
while (i < width) {
count = stbi__get8(s);
if (count > 128) {
// Run
value = stbi__get8(s);
count -= 128;
for (z = 0; z < count; ++z)
scanline[i++ * 4 + k] = value;
} else {
// Dump
for (z = 0; z < count; ++z)
scanline[i++ * 4 + k] = stbi__get8(s);
}
}
}
for (i=0; i < width; ++i)
stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp);
}
STBI_FREE(scanline);
}
return hdr_data;
}
static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp)
{
char buffer[STBI__HDR_BUFLEN];
char *token;
int valid = 0;
if (stbi__hdr_test(s) == 0) {
stbi__rewind( s );
return 0;
}
for(;;) {
token = stbi__hdr_gettoken(s,buffer);
if (token[0] == 0) break;
if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1;
}
if (!valid) {
stbi__rewind( s );
return 0;
}
token = stbi__hdr_gettoken(s,buffer);
if (strncmp(token, "-Y ", 3)) {
stbi__rewind( s );
return 0;
}
token += 3;
*y = (int) strtol(token, &token, 10);
while (*token == ' ') ++token;
if (strncmp(token, "+X ", 3)) {
stbi__rewind( s );
return 0;
}
token += 3;
*x = (int) strtol(token, NULL, 10);
*comp = 3;
return 1;
}
#endif // STBI_NO_HDR
#ifndef STBI_NO_BMP
static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp)
{
void *p;
stbi__bmp_data info;
info.all_a = 255;
p = stbi__bmp_parse_header(s, &info);
stbi__rewind( s );
if (p == NULL)
return 0;
*x = s->img_x;
*y = s->img_y;
*comp = info.ma ? 4 : 3;
return 1;
}
#endif
#ifndef STBI_NO_PSD
static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp)
{
int channelCount;
if (stbi__get32be(s) != 0x38425053) {
stbi__rewind( s );
return 0;
}
if (stbi__get16be(s) != 1) {
stbi__rewind( s );
return 0;
}
stbi__skip(s, 6);
channelCount = stbi__get16be(s);
if (channelCount < 0 || channelCount > 16) {
stbi__rewind( s );
return 0;
}
*y = stbi__get32be(s);
*x = stbi__get32be(s);
if (stbi__get16be(s) != 8) {
stbi__rewind( s );
return 0;
}
if (stbi__get16be(s) != 3) {
stbi__rewind( s );
return 0;
}
*comp = 4;
return 1;
}
#endif
#ifndef STBI_NO_PIC
static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp)
{
int act_comp=0,num_packets=0,chained;
stbi__pic_packet packets[10];
if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) {
stbi__rewind(s);
return 0;
}
stbi__skip(s, 88);
*x = stbi__get16be(s);
*y = stbi__get16be(s);
if (stbi__at_eof(s)) {
stbi__rewind( s);
return 0;
}
if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) {
stbi__rewind( s );
return 0;
}
stbi__skip(s, 8);
do {
stbi__pic_packet *packet;
if (num_packets==sizeof(packets)/sizeof(packets[0]))
return 0;
packet = &packets[num_packets++];
chained = stbi__get8(s);
packet->size = stbi__get8(s);
packet->type = stbi__get8(s);
packet->channel = stbi__get8(s);
act_comp |= packet->channel;
if (stbi__at_eof(s)) {
stbi__rewind( s );
return 0;
}
if (packet->size != 8) {
stbi__rewind( s );
return 0;
}
} while (chained);
*comp = (act_comp & 0x10 ? 4 : 3);
return 1;
}
#endif
// *************************************************************************************************
// Portable Gray Map and Portable Pixel Map loader
// by Ken Miller
//
// PGM: http://netpbm.sourceforge.net/doc/pgm.html
// PPM: http://netpbm.sourceforge.net/doc/ppm.html
//
// Known limitations:
// Does not support comments in the header section
// Does not support ASCII image data (formats P2 and P3)
// Does not support 16-bit-per-channel
#ifndef STBI_NO_PNM
static int stbi__pnm_test(stbi__context *s)
{
char p, t;
p = (char) stbi__get8(s);
t = (char) stbi__get8(s);
if (p != 'P' || (t != '5' && t != '6')) {
stbi__rewind( s );
return 0;
}
return 1;
}
static stbi_uc *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
stbi_uc *out;
if (!stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n))
return 0;
*x = s->img_x;
*y = s->img_y;
*comp = s->img_n;
out = (stbi_uc *) stbi__malloc(s->img_n * s->img_x * s->img_y);
if (!out) return stbi__errpuc("outofmem", "Out of memory");
stbi__getn(s, out, s->img_n * s->img_x * s->img_y);
if (req_comp && req_comp != s->img_n) {
out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y);
if (out == NULL) return out; // stbi__convert_format frees input on failure
}
return out;
}
static int stbi__pnm_isspace(char c)
{
return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r';
}
static void stbi__pnm_skip_whitespace(stbi__context *s, char *c)
{
for (;;) {
while (!stbi__at_eof(s) && stbi__pnm_isspace(*c))
*c = (char) stbi__get8(s);
if (stbi__at_eof(s) || *c != '#')
break;
while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' )
*c = (char) stbi__get8(s);
}
}
static int stbi__pnm_isdigit(char c)
{
return c >= '0' && c <= '9';
}
static int stbi__pnm_getinteger(stbi__context *s, char *c)
{
int value = 0;
while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) {
value = value*10 + (*c - '0');
*c = (char) stbi__get8(s);
}
return value;
}
static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp)
{
int maxv;
char c, p, t;
stbi__rewind( s );
// Get identifier
p = (char) stbi__get8(s);
t = (char) stbi__get8(s);
if (p != 'P' || (t != '5' && t != '6')) {
stbi__rewind( s );
return 0;
}
*comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm
c = (char) stbi__get8(s);
stbi__pnm_skip_whitespace(s, &c);
*x = stbi__pnm_getinteger(s, &c); // read width
stbi__pnm_skip_whitespace(s, &c);
*y = stbi__pnm_getinteger(s, &c); // read height
stbi__pnm_skip_whitespace(s, &c);
maxv = stbi__pnm_getinteger(s, &c); // read max value
if (maxv > 255)
return stbi__err("max value > 255", "PPM image not 8-bit");
else
return 1;
}
#endif
static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp)
{
#ifndef STBI_NO_JPEG
if (stbi__jpeg_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_PNG
if (stbi__png_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_GIF
if (stbi__gif_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_BMP
if (stbi__bmp_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_PSD
if (stbi__psd_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_PIC
if (stbi__pic_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_PNM
if (stbi__pnm_info(s, x, y, comp)) return 1;
#endif
#ifndef STBI_NO_HDR
if (stbi__hdr_info(s, x, y, comp)) return 1;
#endif
// test tga last because it's a crappy test!
#ifndef STBI_NO_TGA
if (stbi__tga_info(s, x, y, comp))
return 1;
#endif
return stbi__err("unknown image type", "Image not of any known type, or corrupt");
}
#ifndef STBI_NO_STDIO
STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
{
FILE *f = stbi__fopen(filename, "rb");
int result;
if (!f) return stbi__err("can't fopen", "Unable to open file");
result = stbi_info_from_file(f, x, y, comp);
fclose(f);
return result;
}
STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp)
{
int r;
stbi__context s;
long pos = ftell(f);
stbi__start_file(&s, f);
r = stbi__info_main(&s,x,y,comp);
fseek(f,pos,SEEK_SET);
return r;
}
#endif // !STBI_NO_STDIO
STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
{
stbi__context s;
stbi__start_mem(&s,buffer,len);
return stbi__info_main(&s,x,y,comp);
}
STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
{
stbi__context s;
stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user);
return stbi__info_main(&s,x,y,comp);
}
#endif // STB_IMAGE_IMPLEMENTATION
/*
revision history:
2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED
2.09 (2016-01-16) allow comments in PNM files
16-bit-per-pixel TGA (not bit-per-component)
info() for TGA could break due to .hdr handling
info() for BMP to shares code instead of sloppy parse
can use STBI_REALLOC_SIZED if allocator doesn't support realloc
code cleanup
2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA
2.07 (2015-09-13) fix compiler warnings
partial animated GIF support
limited 16-bpc PSD support
#ifdef unused functions
bug with < 92 byte PIC,PNM,HDR,TGA
2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value
2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning
2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit
2.03 (2015-04-12) extra corruption checking (mmozeiko)
stbi_set_flip_vertically_on_load (nguillemot)
fix NEON support; fix mingw support
2.02 (2015-01-19) fix incorrect assert, fix warning
2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2
2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG
2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg)
progressive JPEG (stb)
PGM/PPM support (Ken Miller)
STBI_MALLOC,STBI_REALLOC,STBI_FREE
GIF bugfix -- seemingly never worked
STBI_NO_*, STBI_ONLY_*
1.48 (2014-12-14) fix incorrectly-named assert()
1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb)
optimize PNG (ryg)
fix bug in interlaced PNG with user-specified channel count (stb)
1.46 (2014-08-26)
fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG
1.45 (2014-08-16)
fix MSVC-ARM internal compiler error by wrapping malloc
1.44 (2014-08-07)
various warning fixes from Ronny Chevalier
1.43 (2014-07-15)
fix MSVC-only compiler problem in code changed in 1.42
1.42 (2014-07-09)
don't define _CRT_SECURE_NO_WARNINGS (affects user code)
fixes to stbi__cleanup_jpeg path
added STBI_ASSERT to avoid requiring assert.h
1.41 (2014-06-25)
fix search&replace from 1.36 that messed up comments/error messages
1.40 (2014-06-22)
fix gcc struct-initialization warning
1.39 (2014-06-15)
fix to TGA optimization when req_comp != number of components in TGA;
fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite)
add support for BMP version 5 (more ignored fields)
1.38 (2014-06-06)
suppress MSVC warnings on integer casts truncating values
fix accidental rename of 'skip' field of I/O
1.37 (2014-06-04)
remove duplicate typedef
1.36 (2014-06-03)
convert to header file single-file library
if de-iphone isn't set, load iphone images color-swapped instead of returning NULL
1.35 (2014-05-27)
various warnings
fix broken STBI_SIMD path
fix bug where stbi_load_from_file no longer left file pointer in correct place
fix broken non-easy path for 32-bit BMP (possibly never used)
TGA optimization by Arseny Kapoulkine
1.34 (unknown)
use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case
1.33 (2011-07-14)
make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements
1.32 (2011-07-13)
support for "info" function for all supported filetypes (SpartanJ)
1.31 (2011-06-20)
a few more leak fixes, bug in PNG handling (SpartanJ)
1.30 (2011-06-11)
added ability to load files via callbacks to accomidate custom input streams (Ben Wenger)
removed deprecated format-specific test/load functions
removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway
error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha)
fix inefficiency in decoding 32-bit BMP (David Woo)
1.29 (2010-08-16)
various warning fixes from Aurelien Pocheville
1.28 (2010-08-01)
fix bug in GIF palette transparency (SpartanJ)
1.27 (2010-08-01)
cast-to-stbi_uc to fix warnings
1.26 (2010-07-24)
fix bug in file buffering for PNG reported by SpartanJ
1.25 (2010-07-17)
refix trans_data warning (Won Chun)
1.24 (2010-07-12)
perf improvements reading from files on platforms with lock-heavy fgetc()
minor perf improvements for jpeg
deprecated type-specific functions so we'll get feedback if they're needed
attempt to fix trans_data warning (Won Chun)
1.23 fixed bug in iPhone support
1.22 (2010-07-10)
removed image *writing* support
stbi_info support from Jetro Lauha
GIF support from Jean-Marc Lienher
iPhone PNG-extensions from James Brown
warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva)
1.21 fix use of 'stbi_uc' in header (reported by jon blow)
1.20 added support for Softimage PIC, by Tom Seddon
1.19 bug in interlaced PNG corruption check (found by ryg)
1.18 (2008-08-02)
fix a threading bug (local mutable static)
1.17 support interlaced PNG
1.16 major bugfix - stbi__convert_format converted one too many pixels
1.15 initialize some fields for thread safety
1.14 fix threadsafe conversion bug
header-file-only version (#define STBI_HEADER_FILE_ONLY before including)
1.13 threadsafe
1.12 const qualifiers in the API
1.11 Support installable IDCT, colorspace conversion routines
1.10 Fixes for 64-bit (don't use "unsigned long")
optimized upsampling by Fabian "ryg" Giesen
1.09 Fix format-conversion for PSD code (bad global variables!)
1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz
1.07 attempt to fix C++ warning/errors again
1.06 attempt to fix C++ warning/errors again
1.05 fix TGA loading to return correct *comp and use good luminance calc
1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free
1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR
1.02 support for (subset of) HDR files, float interface for preferred access to them
1.01 fix bug: possible bug in handling right-side up bmps... not sure
fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all
1.00 interface to zlib that skips zlib header
0.99 correct handling of alpha in palette
0.98 TGA loader by lonesock; dynamically add loaders (untested)
0.97 jpeg errors on too large a file; also catch another malloc failure
0.96 fix detection of invalid v value - particleman@mollyrocket forum
0.95 during header scan, seek to markers in case of padding
0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same
0.93 handle jpegtran output; verbose errors
0.92 read 4,8,16,24,32-bit BMP files of several formats
0.91 output 24-bit Windows 3.0 BMP files
0.90 fix a few more warnings; bump version number to approach 1.0
0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd
0.60 fix compiling as c++
0.59 fix warnings: merge Dave Moore's -Wall fixes
0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian
0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available
0.56 fix bug: zlib uncompressed mode len vs. nlen
0.55 fix bug: restart_interval not initialized to 0
0.54 allow NULL for 'int *comp'
0.53 fix bug in png 3->4; speedup png decoding
0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments
0.51 obey req_comp requests, 1-component jpegs return as 1-component,
on 'test' only check type, not whether we support this variant
0.50 (2006-11-19)
first released version
*/
| xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
src/stb_truetype.h | C/C++ Header | // stb_truetype.h - v1.24 - public domain
// authored from 2009-2020 by Sean Barrett / RAD Game Tools
//
// =======================================================================
//
// NO SECURITY GUARANTEE -- DO NOT USE THIS ON UNTRUSTED FONT FILES
//
// This library does no range checking of the offsets found in the file,
// meaning an attacker can use it to read arbitrary memory.
//
// =======================================================================
//
// This library processes TrueType files:
// parse files
// extract glyph metrics
// extract glyph shapes
// render glyphs to one-channel bitmaps with antialiasing (box filter)
// render glyphs to one-channel SDF bitmaps (signed-distance field/function)
//
// Todo:
// non-MS cmaps
// crashproof on bad data
// hinting? (no longer patented)
// cleartype-style AA?
// optimize: use simple memory allocator for intermediates
// optimize: build edge-list directly from curves
// optimize: rasterize directly from curves?
//
// ADDITIONAL CONTRIBUTORS
//
// Mikko Mononen: compound shape support, more cmap formats
// Tor Andersson: kerning, subpixel rendering
// Dougall Johnson: OpenType / Type 2 font handling
// Daniel Ribeiro Maciel: basic GPOS-based kerning
//
// Misc other:
// Ryan Gordon
// Simon Glass
// github:IntellectualKitty
// Imanol Celaya
// Daniel Ribeiro Maciel
//
// Bug/warning reports/fixes:
// "Zer" on mollyrocket Fabian "ryg" Giesen github:NiLuJe
// Cass Everitt Martins Mozeiko github:aloucks
// stoiko (Haemimont Games) Cap Petschulat github:oyvindjam
// Brian Hook Omar Cornut github:vassvik
// Walter van Niftrik Ryan Griege
// David Gow Peter LaValle
// David Given Sergey Popov
// Ivan-Assen Ivanov Giumo X. Clanjor
// Anthony Pesch Higor Euripedes
// Johan Duparc Thomas Fields
// Hou Qiming Derek Vinyard
// Rob Loach Cort Stratton
// Kenney Phillis Jr. Brian Costabile
// Ken Voskuil (kaesve)
//
// VERSION HISTORY
//
// 1.24 (2020-02-05) fix warning
// 1.23 (2020-02-02) query SVG data for glyphs; query whole kerning table (but only kern not GPOS)
// 1.22 (2019-08-11) minimize missing-glyph duplication; fix kerning if both 'GPOS' and 'kern' are defined
// 1.21 (2019-02-25) fix warning
// 1.20 (2019-02-07) PackFontRange skips missing codepoints; GetScaleFontVMetrics()
// 1.19 (2018-02-11) GPOS kerning, STBTT_fmod
// 1.18 (2018-01-29) add missing function
// 1.17 (2017-07-23) make more arguments const; doc fix
// 1.16 (2017-07-12) SDF support
// 1.15 (2017-03-03) make more arguments const
// 1.14 (2017-01-16) num-fonts-in-TTC function
// 1.13 (2017-01-02) support OpenType fonts, certain Apple fonts
// 1.12 (2016-10-25) suppress warnings about casting away const with -Wcast-qual
// 1.11 (2016-04-02) fix unused-variable warning
// 1.10 (2016-04-02) user-defined fabs(); rare memory leak; remove duplicate typedef
// 1.09 (2016-01-16) warning fix; avoid crash on outofmem; use allocation userdata properly
// 1.08 (2015-09-13) document stbtt_Rasterize(); fixes for vertical & horizontal edges
// 1.07 (2015-08-01) allow PackFontRanges to accept arrays of sparse codepoints;
// variant PackFontRanges to pack and render in separate phases;
// fix stbtt_GetFontOFfsetForIndex (never worked for non-0 input?);
// fixed an assert() bug in the new rasterizer
// replace assert() with STBTT_assert() in new rasterizer
//
// Full history can be found at the end of this file.
//
// LICENSE
//
// See end of file for license information.
//
// USAGE
//
// Include this file in whatever places need to refer to it. In ONE C/C++
// file, write:
// #define STB_TRUETYPE_IMPLEMENTATION
// before the #include of this file. This expands out the actual
// implementation into that C/C++ file.
//
// To make the implementation private to the file that generates the implementation,
// #define STBTT_STATIC
//
// Simple 3D API (don't ship this, but it's fine for tools and quick start)
// stbtt_BakeFontBitmap() -- bake a font to a bitmap for use as texture
// stbtt_GetBakedQuad() -- compute quad to draw for a given char
//
// Improved 3D API (more shippable):
// #include "stb_rect_pack.h" -- optional, but you really want it
// stbtt_PackBegin()
// stbtt_PackSetOversampling() -- for improved quality on small fonts
// stbtt_PackFontRanges() -- pack and renders
// stbtt_PackEnd()
// stbtt_GetPackedQuad()
//
// "Load" a font file from a memory buffer (you have to keep the buffer loaded)
// stbtt_InitFont()
// stbtt_GetFontOffsetForIndex() -- indexing for TTC font collections
// stbtt_GetNumberOfFonts() -- number of fonts for TTC font collections
//
// Render a unicode codepoint to a bitmap
// stbtt_GetCodepointBitmap() -- allocates and returns a bitmap
// stbtt_MakeCodepointBitmap() -- renders into bitmap you provide
// stbtt_GetCodepointBitmapBox() -- how big the bitmap must be
//
// Character advance/positioning
// stbtt_GetCodepointHMetrics()
// stbtt_GetFontVMetrics()
// stbtt_GetFontVMetricsOS2()
// stbtt_GetCodepointKernAdvance()
//
// Starting with version 1.06, the rasterizer was replaced with a new,
// faster and generally-more-precise rasterizer. The new rasterizer more
// accurately measures pixel coverage for anti-aliasing, except in the case
// where multiple shapes overlap, in which case it overestimates the AA pixel
// coverage. Thus, anti-aliasing of intersecting shapes may look wrong. If
// this turns out to be a problem, you can re-enable the old rasterizer with
// #define STBTT_RASTERIZER_VERSION 1
// which will incur about a 15% speed hit.
//
// ADDITIONAL DOCUMENTATION
//
// Immediately after this block comment are a series of sample programs.
//
// After the sample programs is the "header file" section. This section
// includes documentation for each API function.
//
// Some important concepts to understand to use this library:
//
// Codepoint
// Characters are defined by unicode codepoints, e.g. 65 is
// uppercase A, 231 is lowercase c with a cedilla, 0x7e30 is
// the hiragana for "ma".
//
// Glyph
// A visual character shape (every codepoint is rendered as
// some glyph)
//
// Glyph index
// A font-specific integer ID representing a glyph
//
// Baseline
// Glyph shapes are defined relative to a baseline, which is the
// bottom of uppercase characters. Characters extend both above
// and below the baseline.
//
// Current Point
// As you draw text to the screen, you keep track of a "current point"
// which is the origin of each character. The current point's vertical
// position is the baseline. Even "baked fonts" use this model.
//
// Vertical Font Metrics
// The vertical qualities of the font, used to vertically position
// and space the characters. See docs for stbtt_GetFontVMetrics.
//
// Font Size in Pixels or Points
// The preferred interface for specifying font sizes in stb_truetype
// is to specify how tall the font's vertical extent should be in pixels.
// If that sounds good enough, skip the next paragraph.
//
// Most font APIs instead use "points", which are a common typographic
// measurement for describing font size, defined as 72 points per inch.
// stb_truetype provides a point API for compatibility. However, true
// "per inch" conventions don't make much sense on computer displays
// since different monitors have different number of pixels per
// inch. For example, Windows traditionally uses a convention that
// there are 96 pixels per inch, thus making 'inch' measurements have
// nothing to do with inches, and thus effectively defining a point to
// be 1.333 pixels. Additionally, the TrueType font data provides
// an explicit scale factor to scale a given font's glyphs to points,
// but the author has observed that this scale factor is often wrong
// for non-commercial fonts, thus making fonts scaled in points
// according to the TrueType spec incoherently sized in practice.
//
// DETAILED USAGE:
//
// Scale:
// Select how high you want the font to be, in points or pixels.
// Call ScaleForPixelHeight or ScaleForMappingEmToPixels to compute
// a scale factor SF that will be used by all other functions.
//
// Baseline:
// You need to select a y-coordinate that is the baseline of where
// your text will appear. Call GetFontBoundingBox to get the baseline-relative
// bounding box for all characters. SF*-y0 will be the distance in pixels
// that the worst-case character could extend above the baseline, so if
// you want the top edge of characters to appear at the top of the
// screen where y=0, then you would set the baseline to SF*-y0.
//
// Current point:
// Set the current point where the first character will appear. The
// first character could extend left of the current point; this is font
// dependent. You can either choose a current point that is the leftmost
// point and hope, or add some padding, or check the bounding box or
// left-side-bearing of the first character to be displayed and set
// the current point based on that.
//
// Displaying a character:
// Compute the bounding box of the character. It will contain signed values
// relative to <current_point, baseline>. I.e. if it returns x0,y0,x1,y1,
// then the character should be displayed in the rectangle from
// <current_point+SF*x0, baseline+SF*y0> to <current_point+SF*x1,baseline+SF*y1).
//
// Advancing for the next character:
// Call GlyphHMetrics, and compute 'current_point += SF * advance'.
//
//
// ADVANCED USAGE
//
// Quality:
//
// - Use the functions with Subpixel at the end to allow your characters
// to have subpixel positioning. Since the font is anti-aliased, not
// hinted, this is very import for quality. (This is not possible with
// baked fonts.)
//
// - Kerning is now supported, and if you're supporting subpixel rendering
// then kerning is worth using to give your text a polished look.
//
// Performance:
//
// - Convert Unicode codepoints to glyph indexes and operate on the glyphs;
// if you don't do this, stb_truetype is forced to do the conversion on
// every call.
//
// - There are a lot of memory allocations. We should modify it to take
// a temp buffer and allocate from the temp buffer (without freeing),
// should help performance a lot.
//
// NOTES
//
// The system uses the raw data found in the .ttf file without changing it
// and without building auxiliary data structures. This is a bit inefficient
// on little-endian systems (the data is big-endian), but assuming you're
// caching the bitmaps or glyph shapes this shouldn't be a big deal.
//
// It appears to be very hard to programmatically determine what font a
// given file is in a general way. I provide an API for this, but I don't
// recommend it.
//
//
// PERFORMANCE MEASUREMENTS FOR 1.06:
//
// 32-bit 64-bit
// Previous release: 8.83 s 7.68 s
// Pool allocations: 7.72 s 6.34 s
// Inline sort : 6.54 s 5.65 s
// New rasterizer : 5.63 s 5.00 s
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
////
//// SAMPLE PROGRAMS
////
//
// Incomplete text-in-3d-api example, which draws quads properly aligned to be lossless
//
#if 0
#define STB_TRUETYPE_IMPLEMENTATION // force following include to generate implementation
#include "stb_truetype.h"
unsigned char ttf_buffer[1<<20];
unsigned char temp_bitmap[512*512];
stbtt_bakedchar cdata[96]; // ASCII 32..126 is 95 glyphs
GLuint ftex;
void my_stbtt_initfont(void)
{
fread(ttf_buffer, 1, 1<<20, fopen("c:/windows/fonts/times.ttf", "rb"));
stbtt_BakeFontBitmap(ttf_buffer,0, 32.0, temp_bitmap,512,512, 32,96, cdata); // no guarantee this fits!
// can free ttf_buffer at this point
glGenTextures(1, &ftex);
glBindTexture(GL_TEXTURE_2D, ftex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 512,512, 0, GL_ALPHA, GL_UNSIGNED_BYTE, temp_bitmap);
// can free temp_bitmap at this point
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
void my_stbtt_print(float x, float y, char *text)
{
// assume orthographic projection with units = screen pixels, origin at top left
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, ftex);
glBegin(GL_QUADS);
while (*text) {
if (*text >= 32 && *text < 128) {
stbtt_aligned_quad q;
stbtt_GetBakedQuad(cdata, 512,512, *text-32, &x,&y,&q,1);//1=opengl & d3d10+,0=d3d9
glTexCoord2f(q.s0,q.t1); glVertex2f(q.x0,q.y0);
glTexCoord2f(q.s1,q.t1); glVertex2f(q.x1,q.y0);
glTexCoord2f(q.s1,q.t0); glVertex2f(q.x1,q.y1);
glTexCoord2f(q.s0,q.t0); glVertex2f(q.x0,q.y1);
}
++text;
}
glEnd();
}
#endif
//
//
//////////////////////////////////////////////////////////////////////////////
//
// Complete program (this compiles): get a single bitmap, print as ASCII art
//
#if 0
#include <stdio.h>
#define STB_TRUETYPE_IMPLEMENTATION // force following include to generate implementation
#include "stb_truetype.h"
char ttf_buffer[1<<25];
int main(int argc, char **argv)
{
stbtt_fontinfo font;
unsigned char *bitmap;
int w,h,i,j,c = (argc > 1 ? atoi(argv[1]) : 'a'), s = (argc > 2 ? atoi(argv[2]) : 20);
fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/arialbd.ttf", "rb"));
stbtt_InitFont(&font, ttf_buffer, stbtt_GetFontOffsetForIndex(ttf_buffer,0));
bitmap = stbtt_GetCodepointBitmap(&font, 0,stbtt_ScaleForPixelHeight(&font, s), c, &w, &h, 0,0);
for (j=0; j < h; ++j) {
for (i=0; i < w; ++i)
putchar(" .:ioVM@"[bitmap[j*w+i]>>5]);
putchar('\n');
}
return 0;
}
#endif
//
// Output:
//
// .ii.
// @@@@@@.
// V@Mio@@o
// :i. V@V
// :oM@@M
// :@@@MM@M
// @@o o@M
// :@@. M@M
// @@@o@@@@
// :M@@V:@@.
//
//////////////////////////////////////////////////////////////////////////////
//
// Complete program: print "Hello World!" banner, with bugs
//
#if 0
char buffer[24<<20];
unsigned char screen[20][79];
int main(int arg, char **argv)
{
stbtt_fontinfo font;
int i,j,ascent,baseline,ch=0;
float scale, xpos=2; // leave a little padding in case the character extends left
char *text = "Heljo World!"; // intentionally misspelled to show 'lj' brokenness
fread(buffer, 1, 1000000, fopen("c:/windows/fonts/arialbd.ttf", "rb"));
stbtt_InitFont(&font, buffer, 0);
scale = stbtt_ScaleForPixelHeight(&font, 15);
stbtt_GetFontVMetrics(&font, &ascent,0,0);
baseline = (int) (ascent*scale);
while (text[ch]) {
int advance,lsb,x0,y0,x1,y1;
float x_shift = xpos - (float) floor(xpos);
stbtt_GetCodepointHMetrics(&font, text[ch], &advance, &lsb);
stbtt_GetCodepointBitmapBoxSubpixel(&font, text[ch], scale,scale,x_shift,0, &x0,&y0,&x1,&y1);
stbtt_MakeCodepointBitmapSubpixel(&font, &screen[baseline + y0][(int) xpos + x0], x1-x0,y1-y0, 79, scale,scale,x_shift,0, text[ch]);
// note that this stomps the old data, so where character boxes overlap (e.g. 'lj') it's wrong
// because this API is really for baking character bitmaps into textures. if you want to render
// a sequence of characters, you really need to render each bitmap to a temp buffer, then
// "alpha blend" that into the working buffer
xpos += (advance * scale);
if (text[ch+1])
xpos += scale*stbtt_GetCodepointKernAdvance(&font, text[ch],text[ch+1]);
++ch;
}
for (j=0; j < 20; ++j) {
for (i=0; i < 78; ++i)
putchar(" .:ioVM@"[screen[j][i]>>5]);
putchar('\n');
}
return 0;
}
#endif
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
////
//// INTEGRATION WITH YOUR CODEBASE
////
//// The following sections allow you to supply alternate definitions
//// of C library functions used by stb_truetype, e.g. if you don't
//// link with the C runtime library.
#ifdef STB_TRUETYPE_IMPLEMENTATION
// #define your own (u)stbtt_int8/16/32 before including to override this
#ifndef stbtt_uint8
typedef unsigned char stbtt_uint8;
typedef signed char stbtt_int8;
typedef unsigned short stbtt_uint16;
typedef signed short stbtt_int16;
typedef unsigned int stbtt_uint32;
typedef signed int stbtt_int32;
#endif
typedef char stbtt__check_size32[sizeof(stbtt_int32)==4 ? 1 : -1];
typedef char stbtt__check_size16[sizeof(stbtt_int16)==2 ? 1 : -1];
// e.g. #define your own STBTT_ifloor/STBTT_iceil() to avoid math.h
#ifndef STBTT_ifloor
#include <math.h>
#define STBTT_ifloor(x) ((int) floor(x))
#define STBTT_iceil(x) ((int) ceil(x))
#endif
#ifndef STBTT_sqrt
#include <math.h>
#define STBTT_sqrt(x) sqrt(x)
#define STBTT_pow(x,y) pow(x,y)
#endif
#ifndef STBTT_fmod
#include <math.h>
#define STBTT_fmod(x,y) fmod(x,y)
#endif
#ifndef STBTT_cos
#include <math.h>
#define STBTT_cos(x) cos(x)
#define STBTT_acos(x) acos(x)
#endif
#ifndef STBTT_fabs
#include <math.h>
#define STBTT_fabs(x) fabs(x)
#endif
// #define your own functions "STBTT_malloc" / "STBTT_free" to avoid malloc.h
#ifndef STBTT_malloc
#include <stdlib.h>
#define STBTT_malloc(x,u) ((void)(u),malloc(x))
#define STBTT_free(x,u) ((void)(u),free(x))
#endif
#ifndef STBTT_assert
#include <assert.h>
#define STBTT_assert(x) assert(x)
#endif
#ifndef STBTT_strlen
#include <string.h>
#define STBTT_strlen(x) strlen(x)
#endif
#ifndef STBTT_memcpy
#include <string.h>
#define STBTT_memcpy memcpy
#define STBTT_memset memset
#endif
#endif
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
////
//// INTERFACE
////
////
#ifndef __STB_INCLUDE_STB_TRUETYPE_H__
#define __STB_INCLUDE_STB_TRUETYPE_H__
#ifdef STBTT_STATIC
#define STBTT_DEF static
#else
#define STBTT_DEF extern
#endif
#ifdef __cplusplus
extern "C" {
#endif
// private structure
typedef struct
{
unsigned char *data;
int cursor;
int size;
} stbtt__buf;
//////////////////////////////////////////////////////////////////////////////
//
// TEXTURE BAKING API
//
// If you use this API, you only have to call two functions ever.
//
typedef struct
{
unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap
float xoff,yoff,xadvance;
} stbtt_bakedchar;
STBTT_DEF int stbtt_BakeFontBitmap(const unsigned char *data, int offset, // font location (use offset=0 for plain .ttf)
float pixel_height, // height of font in pixels
unsigned char *pixels, int pw, int ph, // bitmap to be filled in
int first_char, int num_chars, // characters to bake
stbtt_bakedchar *chardata); // you allocate this, it's num_chars long
// if return is positive, the first unused row of the bitmap
// if return is negative, returns the negative of the number of characters that fit
// if return is 0, no characters fit and no rows were used
// This uses a very crappy packing.
typedef struct
{
float x0,y0,s0,t0; // top-left
float x1,y1,s1,t1; // bottom-right
} stbtt_aligned_quad;
STBTT_DEF void stbtt_GetBakedQuad(const stbtt_bakedchar *chardata, int pw, int ph, // same data as above
int char_index, // character to display
float *xpos, float *ypos, // pointers to current position in screen pixel space
stbtt_aligned_quad *q, // output: quad to draw
int opengl_fillrule); // true if opengl fill rule; false if DX9 or earlier
// Call GetBakedQuad with char_index = 'character - first_char', and it
// creates the quad you need to draw and advances the current position.
//
// The coordinate system used assumes y increases downwards.
//
// Characters will extend both above and below the current position;
// see discussion of "BASELINE" above.
//
// It's inefficient; you might want to c&p it and optimize it.
STBTT_DEF void stbtt_GetScaledFontVMetrics(const unsigned char *fontdata, int index, float size, float *ascent, float *descent, float *lineGap);
// Query the font vertical metrics without having to create a font first.
//////////////////////////////////////////////////////////////////////////////
//
// NEW TEXTURE BAKING API
//
// This provides options for packing multiple fonts into one atlas, not
// perfectly but better than nothing.
typedef struct
{
unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap
float xoff,yoff,xadvance;
float xoff2,yoff2;
} stbtt_packedchar;
typedef struct stbtt_pack_context stbtt_pack_context;
typedef struct stbtt_fontinfo stbtt_fontinfo;
#ifndef STB_RECT_PACK_VERSION
typedef struct stbrp_rect stbrp_rect;
#endif
STBTT_DEF int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int width, int height, int stride_in_bytes, int padding, void *alloc_context);
// Initializes a packing context stored in the passed-in stbtt_pack_context.
// Future calls using this context will pack characters into the bitmap passed
// in here: a 1-channel bitmap that is width * height. stride_in_bytes is
// the distance from one row to the next (or 0 to mean they are packed tightly
// together). "padding" is the amount of padding to leave between each
// character (normally you want '1' for bitmaps you'll use as textures with
// bilinear filtering).
//
// Returns 0 on failure, 1 on success.
STBTT_DEF void stbtt_PackEnd (stbtt_pack_context *spc);
// Cleans up the packing context and frees all memory.
#define STBTT_POINT_SIZE(x) (-(x))
STBTT_DEF int stbtt_PackFontRange(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, float font_size,
int first_unicode_char_in_range, int num_chars_in_range, stbtt_packedchar *chardata_for_range);
// Creates character bitmaps from the font_index'th font found in fontdata (use
// font_index=0 if you don't know what that is). It creates num_chars_in_range
// bitmaps for characters with unicode values starting at first_unicode_char_in_range
// and increasing. Data for how to render them is stored in chardata_for_range;
// pass these to stbtt_GetPackedQuad to get back renderable quads.
//
// font_size is the full height of the character from ascender to descender,
// as computed by stbtt_ScaleForPixelHeight. To use a point size as computed
// by stbtt_ScaleForMappingEmToPixels, wrap the point size in STBTT_POINT_SIZE()
// and pass that result as 'font_size':
// ..., 20 , ... // font max minus min y is 20 pixels tall
// ..., STBTT_POINT_SIZE(20), ... // 'M' is 20 pixels tall
typedef struct
{
float font_size;
int first_unicode_codepoint_in_range; // if non-zero, then the chars are continuous, and this is the first codepoint
int *array_of_unicode_codepoints; // if non-zero, then this is an array of unicode codepoints
int num_chars;
stbtt_packedchar *chardata_for_range; // output
unsigned char h_oversample, v_oversample; // don't set these, they're used internally
} stbtt_pack_range;
STBTT_DEF int stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges);
// Creates character bitmaps from multiple ranges of characters stored in
// ranges. This will usually create a better-packed bitmap than multiple
// calls to stbtt_PackFontRange. Note that you can call this multiple
// times within a single PackBegin/PackEnd.
STBTT_DEF void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample);
// Oversampling a font increases the quality by allowing higher-quality subpixel
// positioning, and is especially valuable at smaller text sizes.
//
// This function sets the amount of oversampling for all following calls to
// stbtt_PackFontRange(s) or stbtt_PackFontRangesGatherRects for a given
// pack context. The default (no oversampling) is achieved by h_oversample=1
// and v_oversample=1. The total number of pixels required is
// h_oversample*v_oversample larger than the default; for example, 2x2
// oversampling requires 4x the storage of 1x1. For best results, render
// oversampled textures with bilinear filtering. Look at the readme in
// stb/tests/oversample for information about oversampled fonts
//
// To use with PackFontRangesGather etc., you must set it before calls
// call to PackFontRangesGatherRects.
STBTT_DEF void stbtt_PackSetSkipMissingCodepoints(stbtt_pack_context *spc, int skip);
// If skip != 0, this tells stb_truetype to skip any codepoints for which
// there is no corresponding glyph. If skip=0, which is the default, then
// codepoints without a glyph recived the font's "missing character" glyph,
// typically an empty box by convention.
STBTT_DEF void stbtt_GetPackedQuad(const stbtt_packedchar *chardata, int pw, int ph, // same data as above
int char_index, // character to display
float *xpos, float *ypos, // pointers to current position in screen pixel space
stbtt_aligned_quad *q, // output: quad to draw
int align_to_integer);
STBTT_DEF int stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects);
STBTT_DEF void stbtt_PackFontRangesPackRects(stbtt_pack_context *spc, stbrp_rect *rects, int num_rects);
STBTT_DEF int stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects);
// Calling these functions in sequence is roughly equivalent to calling
// stbtt_PackFontRanges(). If you more control over the packing of multiple
// fonts, or if you want to pack custom data into a font texture, take a look
// at the source to of stbtt_PackFontRanges() and create a custom version
// using these functions, e.g. call GatherRects multiple times,
// building up a single array of rects, then call PackRects once,
// then call RenderIntoRects repeatedly. This may result in a
// better packing than calling PackFontRanges multiple times
// (or it may not).
// this is an opaque structure that you shouldn't mess with which holds
// all the context needed from PackBegin to PackEnd.
struct stbtt_pack_context {
void *user_allocator_context;
void *pack_info;
int width;
int height;
int stride_in_bytes;
int padding;
int skip_missing;
unsigned int h_oversample, v_oversample;
unsigned char *pixels;
void *nodes;
};
//////////////////////////////////////////////////////////////////////////////
//
// FONT LOADING
//
//
STBTT_DEF int stbtt_GetNumberOfFonts(const unsigned char *data);
// This function will determine the number of fonts in a font file. TrueType
// collection (.ttc) files may contain multiple fonts, while TrueType font
// (.ttf) files only contain one font. The number of fonts can be used for
// indexing with the previous function where the index is between zero and one
// less than the total fonts. If an error occurs, -1 is returned.
STBTT_DEF int stbtt_GetFontOffsetForIndex(const unsigned char *data, int index);
// Each .ttf/.ttc file may have more than one font. Each font has a sequential
// index number starting from 0. Call this function to get the font offset for
// a given index; it returns -1 if the index is out of range. A regular .ttf
// file will only define one font and it always be at offset 0, so it will
// return '0' for index 0, and -1 for all other indices.
// The following structure is defined publicly so you can declare one on
// the stack or as a global or etc, but you should treat it as opaque.
struct stbtt_fontinfo
{
void * userdata;
unsigned char * data; // pointer to .ttf file
int fontstart; // offset of start of font
int numGlyphs; // number of glyphs, needed for range checking
int loca,head,glyf,hhea,hmtx,kern,gpos,svg; // table locations as offset from start of .ttf
int index_map; // a cmap mapping for our chosen character encoding
int indexToLocFormat; // format needed to map from glyph index to glyph
stbtt__buf cff; // cff font data
stbtt__buf charstrings; // the charstring index
stbtt__buf gsubrs; // global charstring subroutines index
stbtt__buf subrs; // private charstring subroutines index
stbtt__buf fontdicts; // array of font dicts
stbtt__buf fdselect; // map from glyph to fontdict
};
STBTT_DEF int stbtt_InitFont(stbtt_fontinfo *info, const unsigned char *data, int offset);
// Given an offset into the file that defines a font, this function builds
// the necessary cached info for the rest of the system. You must allocate
// the stbtt_fontinfo yourself, and stbtt_InitFont will fill it out. You don't
// need to do anything special to free it, because the contents are pure
// value data with no additional data structures. Returns 0 on failure.
//////////////////////////////////////////////////////////////////////////////
//
// CHARACTER TO GLYPH-INDEX CONVERSIOn
STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codepoint);
// If you're going to perform multiple operations on the same character
// and you want a speed-up, call this function with the character you're
// going to process, then use glyph-based functions instead of the
// codepoint-based functions.
// Returns 0 if the character codepoint is not defined in the font.
//////////////////////////////////////////////////////////////////////////////
//
// CHARACTER PROPERTIES
//
STBTT_DEF float stbtt_ScaleForPixelHeight(const stbtt_fontinfo *info, float pixels);
// computes a scale factor to produce a font whose "height" is 'pixels' tall.
// Height is measured as the distance from the highest ascender to the lowest
// descender; in other words, it's equivalent to calling stbtt_GetFontVMetrics
// and computing:
// scale = pixels / (ascent - descent)
// so if you prefer to measure height by the ascent only, use a similar calculation.
STBTT_DEF float stbtt_ScaleForMappingEmToPixels(const stbtt_fontinfo *info, float pixels);
// computes a scale factor to produce a font whose EM size is mapped to
// 'pixels' tall. This is probably what traditional APIs compute, but
// I'm not positive.
STBTT_DEF void stbtt_GetFontVMetrics(const stbtt_fontinfo *info, int *ascent, int *descent, int *lineGap);
// ascent is the coordinate above the baseline the font extends; descent
// is the coordinate below the baseline the font extends (i.e. it is typically negative)
// lineGap is the spacing between one row's descent and the next row's ascent...
// so you should advance the vertical position by "*ascent - *descent + *lineGap"
// these are expressed in unscaled coordinates, so you must multiply by
// the scale factor for a given size
STBTT_DEF int stbtt_GetFontVMetricsOS2(const stbtt_fontinfo *info, int *typoAscent, int *typoDescent, int *typoLineGap);
// analogous to GetFontVMetrics, but returns the "typographic" values from the OS/2
// table (specific to MS/Windows TTF files).
//
// Returns 1 on success (table present), 0 on failure.
STBTT_DEF void stbtt_GetFontBoundingBox(const stbtt_fontinfo *info, int *x0, int *y0, int *x1, int *y1);
// the bounding box around all possible characters
STBTT_DEF void stbtt_GetCodepointHMetrics(const stbtt_fontinfo *info, int codepoint, int *advanceWidth, int *leftSideBearing);
// leftSideBearing is the offset from the current horizontal position to the left edge of the character
// advanceWidth is the offset from the current horizontal position to the next horizontal position
// these are expressed in unscaled coordinates
STBTT_DEF int stbtt_GetCodepointKernAdvance(const stbtt_fontinfo *info, int ch1, int ch2);
// an additional amount to add to the 'advance' value between ch1 and ch2
STBTT_DEF int stbtt_GetCodepointBox(const stbtt_fontinfo *info, int codepoint, int *x0, int *y0, int *x1, int *y1);
// Gets the bounding box of the visible part of the glyph, in unscaled coordinates
STBTT_DEF void stbtt_GetGlyphHMetrics(const stbtt_fontinfo *info, int glyph_index, int *advanceWidth, int *leftSideBearing);
STBTT_DEF int stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2);
STBTT_DEF int stbtt_GetGlyphBox(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1);
// as above, but takes one or more glyph indices for greater efficiency
typedef struct stbtt_kerningentry
{
int glyph1; // use stbtt_FindGlyphIndex
int glyph2;
int advance;
} stbtt_kerningentry;
STBTT_DEF int stbtt_GetKerningTableLength(const stbtt_fontinfo *info);
STBTT_DEF int stbtt_GetKerningTable(const stbtt_fontinfo *info, stbtt_kerningentry* table, int table_length);
// Retrieves a complete list of all of the kerning pairs provided by the font
// stbtt_GetKerningTable never writes more than table_length entries and returns how many entries it did write.
// The table will be sorted by (a.glyph1 == b.glyph1)?(a.glyph2 < b.glyph2):(a.glyph1 < b.glyph1)
//////////////////////////////////////////////////////////////////////////////
//
// GLYPH SHAPES (you probably don't need these, but they have to go before
// the bitmaps for C declaration-order reasons)
//
#ifndef STBTT_vmove // you can predefine these to use different values (but why?)
enum {
STBTT_vmove=1,
STBTT_vline,
STBTT_vcurve,
STBTT_vcubic
};
#endif
#ifndef stbtt_vertex // you can predefine this to use different values
// (we share this with other code at RAD)
#define stbtt_vertex_type short // can't use stbtt_int16 because that's not visible in the header file
typedef struct
{
stbtt_vertex_type x,y,cx,cy,cx1,cy1;
unsigned char type,padding;
} stbtt_vertex;
#endif
STBTT_DEF int stbtt_IsGlyphEmpty(const stbtt_fontinfo *info, int glyph_index);
// returns non-zero if nothing is drawn for this glyph
STBTT_DEF int stbtt_GetCodepointShape(const stbtt_fontinfo *info, int unicode_codepoint, stbtt_vertex **vertices);
STBTT_DEF int stbtt_GetGlyphShape(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **vertices);
// returns # of vertices and fills *vertices with the pointer to them
// these are expressed in "unscaled" coordinates
//
// The shape is a series of contours. Each one starts with
// a STBTT_moveto, then consists of a series of mixed
// STBTT_lineto and STBTT_curveto segments. A lineto
// draws a line from previous endpoint to its x,y; a curveto
// draws a quadratic bezier from previous endpoint to
// its x,y, using cx,cy as the bezier control point.
STBTT_DEF void stbtt_FreeShape(const stbtt_fontinfo *info, stbtt_vertex *vertices);
// frees the data allocated above
STBTT_DEF int stbtt_GetCodepointSVG(const stbtt_fontinfo *info, int unicode_codepoint, const char **svg);
STBTT_DEF int stbtt_GetGlyphSVG(const stbtt_fontinfo *info, int gl, const char **svg);
// fills svg with the character's SVG data.
// returns data size or 0 if SVG not found.
//////////////////////////////////////////////////////////////////////////////
//
// BITMAP RENDERING
//
STBTT_DEF void stbtt_FreeBitmap(unsigned char *bitmap, void *userdata);
// frees the bitmap allocated below
STBTT_DEF unsigned char *stbtt_GetCodepointBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int codepoint, int *width, int *height, int *xoff, int *yoff);
// allocates a large-enough single-channel 8bpp bitmap and renders the
// specified character/glyph at the specified scale into it, with
// antialiasing. 0 is no coverage (transparent), 255 is fully covered (opaque).
// *width & *height are filled out with the width & height of the bitmap,
// which is stored left-to-right, top-to-bottom.
//
// xoff/yoff are the offset it pixel space from the glyph origin to the top-left of the bitmap
STBTT_DEF unsigned char *stbtt_GetCodepointBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint, int *width, int *height, int *xoff, int *yoff);
// the same as stbtt_GetCodepoitnBitmap, but you can specify a subpixel
// shift for the character
STBTT_DEF void stbtt_MakeCodepointBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int codepoint);
// the same as stbtt_GetCodepointBitmap, but you pass in storage for the bitmap
// in the form of 'output', with row spacing of 'out_stride' bytes. the bitmap
// is clipped to out_w/out_h bytes. Call stbtt_GetCodepointBitmapBox to get the
// width and height and positioning info for it first.
STBTT_DEF void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint);
// same as stbtt_MakeCodepointBitmap, but you can specify a subpixel
// shift for the character
STBTT_DEF void stbtt_MakeCodepointBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int oversample_x, int oversample_y, float *sub_x, float *sub_y, int codepoint);
// same as stbtt_MakeCodepointBitmapSubpixel, but prefiltering
// is performed (see stbtt_PackSetOversampling)
STBTT_DEF void stbtt_GetCodepointBitmapBox(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1);
// get the bbox of the bitmap centered around the glyph origin; so the
// bitmap width is ix1-ix0, height is iy1-iy0, and location to place
// the bitmap top left is (leftSideBearing*scale,iy0).
// (Note that the bitmap uses y-increases-down, but the shape uses
// y-increases-up, so CodepointBitmapBox and CodepointBox are inverted.)
STBTT_DEF void stbtt_GetCodepointBitmapBoxSubpixel(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1);
// same as stbtt_GetCodepointBitmapBox, but you can specify a subpixel
// shift for the character
// the following functions are equivalent to the above functions, but operate
// on glyph indices instead of Unicode codepoints (for efficiency)
STBTT_DEF unsigned char *stbtt_GetGlyphBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int glyph, int *width, int *height, int *xoff, int *yoff);
STBTT_DEF unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int glyph, int *width, int *height, int *xoff, int *yoff);
STBTT_DEF void stbtt_MakeGlyphBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int glyph);
STBTT_DEF void stbtt_MakeGlyphBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int glyph);
STBTT_DEF void stbtt_MakeGlyphBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int oversample_x, int oversample_y, float *sub_x, float *sub_y, int glyph);
STBTT_DEF void stbtt_GetGlyphBitmapBox(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1);
STBTT_DEF void stbtt_GetGlyphBitmapBoxSubpixel(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y,float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1);
// @TODO: don't expose this structure
typedef struct
{
int w,h,stride;
unsigned char *pixels;
} stbtt__bitmap;
// rasterize a shape with quadratic beziers into a bitmap
STBTT_DEF void stbtt_Rasterize(stbtt__bitmap *result, // 1-channel bitmap to draw into
float flatness_in_pixels, // allowable error of curve in pixels
stbtt_vertex *vertices, // array of vertices defining shape
int num_verts, // number of vertices in above array
float scale_x, float scale_y, // scale applied to input vertices
float shift_x, float shift_y, // translation applied to input vertices
int x_off, int y_off, // another translation applied to input
int invert, // if non-zero, vertically flip shape
void *userdata); // context for to STBTT_MALLOC
//////////////////////////////////////////////////////////////////////////////
//
// Signed Distance Function (or Field) rendering
STBTT_DEF void stbtt_FreeSDF(unsigned char *bitmap, void *userdata);
// frees the SDF bitmap allocated below
STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float scale, int glyph, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff);
STBTT_DEF unsigned char * stbtt_GetCodepointSDF(const stbtt_fontinfo *info, float scale, int codepoint, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff);
// These functions compute a discretized SDF field for a single character, suitable for storing
// in a single-channel texture, sampling with bilinear filtering, and testing against
// larger than some threshold to produce scalable fonts.
// info -- the font
// scale -- controls the size of the resulting SDF bitmap, same as it would be creating a regular bitmap
// glyph/codepoint -- the character to generate the SDF for
// padding -- extra "pixels" around the character which are filled with the distance to the character (not 0),
// which allows effects like bit outlines
// onedge_value -- value 0-255 to test the SDF against to reconstruct the character (i.e. the isocontour of the character)
// pixel_dist_scale -- what value the SDF should increase by when moving one SDF "pixel" away from the edge (on the 0..255 scale)
// if positive, > onedge_value is inside; if negative, < onedge_value is inside
// width,height -- output height & width of the SDF bitmap (including padding)
// xoff,yoff -- output origin of the character
// return value -- a 2D array of bytes 0..255, width*height in size
//
// pixel_dist_scale & onedge_value are a scale & bias that allows you to make
// optimal use of the limited 0..255 for your application, trading off precision
// and special effects. SDF values outside the range 0..255 are clamped to 0..255.
//
// Example:
// scale = stbtt_ScaleForPixelHeight(22)
// padding = 5
// onedge_value = 180
// pixel_dist_scale = 180/5.0 = 36.0
//
// This will create an SDF bitmap in which the character is about 22 pixels
// high but the whole bitmap is about 22+5+5=32 pixels high. To produce a filled
// shape, sample the SDF at each pixel and fill the pixel if the SDF value
// is greater than or equal to 180/255. (You'll actually want to antialias,
// which is beyond the scope of this example.) Additionally, you can compute
// offset outlines (e.g. to stroke the character border inside & outside,
// or only outside). For example, to fill outside the character up to 3 SDF
// pixels, you would compare against (180-36.0*3)/255 = 72/255. The above
// choice of variables maps a range from 5 pixels outside the shape to
// 2 pixels inside the shape to 0..255; this is intended primarily for apply
// outside effects only (the interior range is needed to allow proper
// antialiasing of the font at *smaller* sizes)
//
// The function computes the SDF analytically at each SDF pixel, not by e.g.
// building a higher-res bitmap and approximating it. In theory the quality
// should be as high as possible for an SDF of this size & representation, but
// unclear if this is true in practice (perhaps building a higher-res bitmap
// and computing from that can allow drop-out prevention).
//
// The algorithm has not been optimized at all, so expect it to be slow
// if computing lots of characters or very large sizes.
//////////////////////////////////////////////////////////////////////////////
//
// Finding the right font...
//
// You should really just solve this offline, keep your own tables
// of what font is what, and don't try to get it out of the .ttf file.
// That's because getting it out of the .ttf file is really hard, because
// the names in the file can appear in many possible encodings, in many
// possible languages, and e.g. if you need a case-insensitive comparison,
// the details of that depend on the encoding & language in a complex way
// (actually underspecified in truetype, but also gigantic).
//
// But you can use the provided functions in two possible ways:
// stbtt_FindMatchingFont() will use *case-sensitive* comparisons on
// unicode-encoded names to try to find the font you want;
// you can run this before calling stbtt_InitFont()
//
// stbtt_GetFontNameString() lets you get any of the various strings
// from the file yourself and do your own comparisons on them.
// You have to have called stbtt_InitFont() first.
STBTT_DEF int stbtt_FindMatchingFont(const unsigned char *fontdata, const char *name, int flags);
// returns the offset (not index) of the font that matches, or -1 if none
// if you use STBTT_MACSTYLE_DONTCARE, use a font name like "Arial Bold".
// if you use any other flag, use a font name like "Arial"; this checks
// the 'macStyle' header field; i don't know if fonts set this consistently
#define STBTT_MACSTYLE_DONTCARE 0
#define STBTT_MACSTYLE_BOLD 1
#define STBTT_MACSTYLE_ITALIC 2
#define STBTT_MACSTYLE_UNDERSCORE 4
#define STBTT_MACSTYLE_NONE 8 // <= not same as 0, this makes us check the bitfield is 0
STBTT_DEF int stbtt_CompareUTF8toUTF16_bigendian(const char *s1, int len1, const char *s2, int len2);
// returns 1/0 whether the first string interpreted as utf8 is identical to
// the second string interpreted as big-endian utf16... useful for strings from next func
STBTT_DEF const char *stbtt_GetFontNameString(const stbtt_fontinfo *font, int *length, int platformID, int encodingID, int languageID, int nameID);
// returns the string (which may be big-endian double byte, e.g. for unicode)
// and puts the length in bytes in *length.
//
// some of the values for the IDs are below; for more see the truetype spec:
// http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6name.html
// http://www.microsoft.com/typography/otspec/name.htm
enum { // platformID
STBTT_PLATFORM_ID_UNICODE =0,
STBTT_PLATFORM_ID_MAC =1,
STBTT_PLATFORM_ID_ISO =2,
STBTT_PLATFORM_ID_MICROSOFT =3
};
enum { // encodingID for STBTT_PLATFORM_ID_UNICODE
STBTT_UNICODE_EID_UNICODE_1_0 =0,
STBTT_UNICODE_EID_UNICODE_1_1 =1,
STBTT_UNICODE_EID_ISO_10646 =2,
STBTT_UNICODE_EID_UNICODE_2_0_BMP=3,
STBTT_UNICODE_EID_UNICODE_2_0_FULL=4
};
enum { // encodingID for STBTT_PLATFORM_ID_MICROSOFT
STBTT_MS_EID_SYMBOL =0,
STBTT_MS_EID_UNICODE_BMP =1,
STBTT_MS_EID_SHIFTJIS =2,
STBTT_MS_EID_UNICODE_FULL =10
};
enum { // encodingID for STBTT_PLATFORM_ID_MAC; same as Script Manager codes
STBTT_MAC_EID_ROMAN =0, STBTT_MAC_EID_ARABIC =4,
STBTT_MAC_EID_JAPANESE =1, STBTT_MAC_EID_HEBREW =5,
STBTT_MAC_EID_CHINESE_TRAD =2, STBTT_MAC_EID_GREEK =6,
STBTT_MAC_EID_KOREAN =3, STBTT_MAC_EID_RUSSIAN =7
};
enum { // languageID for STBTT_PLATFORM_ID_MICROSOFT; same as LCID...
// problematic because there are e.g. 16 english LCIDs and 16 arabic LCIDs
STBTT_MS_LANG_ENGLISH =0x0409, STBTT_MS_LANG_ITALIAN =0x0410,
STBTT_MS_LANG_CHINESE =0x0804, STBTT_MS_LANG_JAPANESE =0x0411,
STBTT_MS_LANG_DUTCH =0x0413, STBTT_MS_LANG_KOREAN =0x0412,
STBTT_MS_LANG_FRENCH =0x040c, STBTT_MS_LANG_RUSSIAN =0x0419,
STBTT_MS_LANG_GERMAN =0x0407, STBTT_MS_LANG_SPANISH =0x0409,
STBTT_MS_LANG_HEBREW =0x040d, STBTT_MS_LANG_SWEDISH =0x041D
};
enum { // languageID for STBTT_PLATFORM_ID_MAC
STBTT_MAC_LANG_ENGLISH =0 , STBTT_MAC_LANG_JAPANESE =11,
STBTT_MAC_LANG_ARABIC =12, STBTT_MAC_LANG_KOREAN =23,
STBTT_MAC_LANG_DUTCH =4 , STBTT_MAC_LANG_RUSSIAN =32,
STBTT_MAC_LANG_FRENCH =1 , STBTT_MAC_LANG_SPANISH =6 ,
STBTT_MAC_LANG_GERMAN =2 , STBTT_MAC_LANG_SWEDISH =5 ,
STBTT_MAC_LANG_HEBREW =10, STBTT_MAC_LANG_CHINESE_SIMPLIFIED =33,
STBTT_MAC_LANG_ITALIAN =3 , STBTT_MAC_LANG_CHINESE_TRAD =19
};
#ifdef __cplusplus
}
#endif
#endif // __STB_INCLUDE_STB_TRUETYPE_H__
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
////
//// IMPLEMENTATION
////
////
#ifdef STB_TRUETYPE_IMPLEMENTATION
#ifndef STBTT_MAX_OVERSAMPLE
#define STBTT_MAX_OVERSAMPLE 8
#endif
#if STBTT_MAX_OVERSAMPLE > 255
#error "STBTT_MAX_OVERSAMPLE cannot be > 255"
#endif
typedef int stbtt__test_oversample_pow2[(STBTT_MAX_OVERSAMPLE & (STBTT_MAX_OVERSAMPLE-1)) == 0 ? 1 : -1];
#ifndef STBTT_RASTERIZER_VERSION
#define STBTT_RASTERIZER_VERSION 2
#endif
#ifdef _MSC_VER
#define STBTT__NOTUSED(v) (void)(v)
#else
#define STBTT__NOTUSED(v) (void)sizeof(v)
#endif
//////////////////////////////////////////////////////////////////////////
//
// stbtt__buf helpers to parse data from file
//
static stbtt_uint8 stbtt__buf_get8(stbtt__buf *b)
{
if (b->cursor >= b->size)
return 0;
return b->data[b->cursor++];
}
static stbtt_uint8 stbtt__buf_peek8(stbtt__buf *b)
{
if (b->cursor >= b->size)
return 0;
return b->data[b->cursor];
}
static void stbtt__buf_seek(stbtt__buf *b, int o)
{
STBTT_assert(!(o > b->size || o < 0));
b->cursor = (o > b->size || o < 0) ? b->size : o;
}
static void stbtt__buf_skip(stbtt__buf *b, int o)
{
stbtt__buf_seek(b, b->cursor + o);
}
static stbtt_uint32 stbtt__buf_get(stbtt__buf *b, int n)
{
stbtt_uint32 v = 0;
int i;
STBTT_assert(n >= 1 && n <= 4);
for (i = 0; i < n; i++)
v = (v << 8) | stbtt__buf_get8(b);
return v;
}
static stbtt__buf stbtt__new_buf(const void *p, size_t size)
{
stbtt__buf r;
STBTT_assert(size < 0x40000000);
r.data = (stbtt_uint8*) p;
r.size = (int) size;
r.cursor = 0;
return r;
}
#define stbtt__buf_get16(b) stbtt__buf_get((b), 2)
#define stbtt__buf_get32(b) stbtt__buf_get((b), 4)
static stbtt__buf stbtt__buf_range(const stbtt__buf *b, int o, int s)
{
stbtt__buf r = stbtt__new_buf(NULL, 0);
if (o < 0 || s < 0 || o > b->size || s > b->size - o) return r;
r.data = b->data + o;
r.size = s;
return r;
}
static stbtt__buf stbtt__cff_get_index(stbtt__buf *b)
{
int count, start, offsize;
start = b->cursor;
count = stbtt__buf_get16(b);
if (count) {
offsize = stbtt__buf_get8(b);
STBTT_assert(offsize >= 1 && offsize <= 4);
stbtt__buf_skip(b, offsize * count);
stbtt__buf_skip(b, stbtt__buf_get(b, offsize) - 1);
}
return stbtt__buf_range(b, start, b->cursor - start);
}
static stbtt_uint32 stbtt__cff_int(stbtt__buf *b)
{
int b0 = stbtt__buf_get8(b);
if (b0 >= 32 && b0 <= 246) return b0 - 139;
else if (b0 >= 247 && b0 <= 250) return (b0 - 247)*256 + stbtt__buf_get8(b) + 108;
else if (b0 >= 251 && b0 <= 254) return -(b0 - 251)*256 - stbtt__buf_get8(b) - 108;
else if (b0 == 28) return stbtt__buf_get16(b);
else if (b0 == 29) return stbtt__buf_get32(b);
STBTT_assert(0);
return 0;
}
static void stbtt__cff_skip_operand(stbtt__buf *b) {
int v, b0 = stbtt__buf_peek8(b);
STBTT_assert(b0 >= 28);
if (b0 == 30) {
stbtt__buf_skip(b, 1);
while (b->cursor < b->size) {
v = stbtt__buf_get8(b);
if ((v & 0xF) == 0xF || (v >> 4) == 0xF)
break;
}
} else {
stbtt__cff_int(b);
}
}
static stbtt__buf stbtt__dict_get(stbtt__buf *b, int key)
{
stbtt__buf_seek(b, 0);
while (b->cursor < b->size) {
int start = b->cursor, end, op;
while (stbtt__buf_peek8(b) >= 28)
stbtt__cff_skip_operand(b);
end = b->cursor;
op = stbtt__buf_get8(b);
if (op == 12) op = stbtt__buf_get8(b) | 0x100;
if (op == key) return stbtt__buf_range(b, start, end-start);
}
return stbtt__buf_range(b, 0, 0);
}
static void stbtt__dict_get_ints(stbtt__buf *b, int key, int outcount, stbtt_uint32 *out)
{
int i;
stbtt__buf operands = stbtt__dict_get(b, key);
for (i = 0; i < outcount && operands.cursor < operands.size; i++)
out[i] = stbtt__cff_int(&operands);
}
static int stbtt__cff_index_count(stbtt__buf *b)
{
stbtt__buf_seek(b, 0);
return stbtt__buf_get16(b);
}
static stbtt__buf stbtt__cff_index_get(stbtt__buf b, int i)
{
int count, offsize, start, end;
stbtt__buf_seek(&b, 0);
count = stbtt__buf_get16(&b);
offsize = stbtt__buf_get8(&b);
STBTT_assert(i >= 0 && i < count);
STBTT_assert(offsize >= 1 && offsize <= 4);
stbtt__buf_skip(&b, i*offsize);
start = stbtt__buf_get(&b, offsize);
end = stbtt__buf_get(&b, offsize);
return stbtt__buf_range(&b, 2+(count+1)*offsize+start, end - start);
}
//////////////////////////////////////////////////////////////////////////
//
// accessors to parse data from file
//
// on platforms that don't allow misaligned reads, if we want to allow
// truetype fonts that aren't padded to alignment, define ALLOW_UNALIGNED_TRUETYPE
#define ttBYTE(p) (* (stbtt_uint8 *) (p))
#define ttCHAR(p) (* (stbtt_int8 *) (p))
#define ttFixed(p) ttLONG(p)
static stbtt_uint16 ttUSHORT(stbtt_uint8 *p) { return p[0]*256 + p[1]; }
static stbtt_int16 ttSHORT(stbtt_uint8 *p) { return p[0]*256 + p[1]; }
static stbtt_uint32 ttULONG(stbtt_uint8 *p) { return (p[0]<<24) + (p[1]<<16) + (p[2]<<8) + p[3]; }
static stbtt_int32 ttLONG(stbtt_uint8 *p) { return (p[0]<<24) + (p[1]<<16) + (p[2]<<8) + p[3]; }
#define stbtt_tag4(p,c0,c1,c2,c3) ((p)[0] == (c0) && (p)[1] == (c1) && (p)[2] == (c2) && (p)[3] == (c3))
#define stbtt_tag(p,str) stbtt_tag4(p,str[0],str[1],str[2],str[3])
static int stbtt__isfont(stbtt_uint8 *font)
{
// check the version number
if (stbtt_tag4(font, '1',0,0,0)) return 1; // TrueType 1
if (stbtt_tag(font, "typ1")) return 1; // TrueType with type 1 font -- we don't support this!
if (stbtt_tag(font, "OTTO")) return 1; // OpenType with CFF
if (stbtt_tag4(font, 0,1,0,0)) return 1; // OpenType 1.0
if (stbtt_tag(font, "true")) return 1; // Apple specification for TrueType fonts
return 0;
}
// @OPTIMIZE: binary search
static stbtt_uint32 stbtt__find_table(stbtt_uint8 *data, stbtt_uint32 fontstart, const char *tag)
{
stbtt_int32 num_tables = ttUSHORT(data+fontstart+4);
stbtt_uint32 tabledir = fontstart + 12;
stbtt_int32 i;
for (i=0; i < num_tables; ++i) {
stbtt_uint32 loc = tabledir + 16*i;
if (stbtt_tag(data+loc+0, tag))
return ttULONG(data+loc+8);
}
return 0;
}
static int stbtt_GetFontOffsetForIndex_internal(unsigned char *font_collection, int index)
{
// if it's just a font, there's only one valid index
if (stbtt__isfont(font_collection))
return index == 0 ? 0 : -1;
// check if it's a TTC
if (stbtt_tag(font_collection, "ttcf")) {
// version 1?
if (ttULONG(font_collection+4) == 0x00010000 || ttULONG(font_collection+4) == 0x00020000) {
stbtt_int32 n = ttLONG(font_collection+8);
if (index >= n)
return -1;
return ttULONG(font_collection+12+index*4);
}
}
return -1;
}
static int stbtt_GetNumberOfFonts_internal(unsigned char *font_collection)
{
// if it's just a font, there's only one valid font
if (stbtt__isfont(font_collection))
return 1;
// check if it's a TTC
if (stbtt_tag(font_collection, "ttcf")) {
// version 1?
if (ttULONG(font_collection+4) == 0x00010000 || ttULONG(font_collection+4) == 0x00020000) {
return ttLONG(font_collection+8);
}
}
return 0;
}
static stbtt__buf stbtt__get_subrs(stbtt__buf cff, stbtt__buf fontdict)
{
stbtt_uint32 subrsoff = 0, private_loc[2] = { 0, 0 };
stbtt__buf pdict;
stbtt__dict_get_ints(&fontdict, 18, 2, private_loc);
if (!private_loc[1] || !private_loc[0]) return stbtt__new_buf(NULL, 0);
pdict = stbtt__buf_range(&cff, private_loc[1], private_loc[0]);
stbtt__dict_get_ints(&pdict, 19, 1, &subrsoff);
if (!subrsoff) return stbtt__new_buf(NULL, 0);
stbtt__buf_seek(&cff, private_loc[1]+subrsoff);
return stbtt__cff_get_index(&cff);
}
// since most people won't use this, find this table the first time it's needed
static int stbtt__get_svg(stbtt_fontinfo *info)
{
stbtt_uint32 t;
if (info->svg < 0) {
t = stbtt__find_table(info->data, info->fontstart, "SVG ");
if (t) {
stbtt_uint32 offset = ttULONG(info->data + t + 2);
info->svg = t + offset;
} else {
info->svg = 0;
}
}
return info->svg;
}
static int stbtt_InitFont_internal(stbtt_fontinfo *info, unsigned char *data, int fontstart)
{
stbtt_uint32 cmap, t;
stbtt_int32 i,numTables;
info->data = data;
info->fontstart = fontstart;
info->cff = stbtt__new_buf(NULL, 0);
cmap = stbtt__find_table(data, fontstart, "cmap"); // required
info->loca = stbtt__find_table(data, fontstart, "loca"); // required
info->head = stbtt__find_table(data, fontstart, "head"); // required
info->glyf = stbtt__find_table(data, fontstart, "glyf"); // required
info->hhea = stbtt__find_table(data, fontstart, "hhea"); // required
info->hmtx = stbtt__find_table(data, fontstart, "hmtx"); // required
info->kern = stbtt__find_table(data, fontstart, "kern"); // not required
info->gpos = stbtt__find_table(data, fontstart, "GPOS"); // not required
if (!cmap || !info->head || !info->hhea || !info->hmtx)
return 0;
if (info->glyf) {
// required for truetype
if (!info->loca) return 0;
} else {
// initialization for CFF / Type2 fonts (OTF)
stbtt__buf b, topdict, topdictidx;
stbtt_uint32 cstype = 2, charstrings = 0, fdarrayoff = 0, fdselectoff = 0;
stbtt_uint32 cff;
cff = stbtt__find_table(data, fontstart, "CFF ");
if (!cff) return 0;
info->fontdicts = stbtt__new_buf(NULL, 0);
info->fdselect = stbtt__new_buf(NULL, 0);
// @TODO this should use size from table (not 512MB)
info->cff = stbtt__new_buf(data+cff, 512*1024*1024);
b = info->cff;
// read the header
stbtt__buf_skip(&b, 2);
stbtt__buf_seek(&b, stbtt__buf_get8(&b)); // hdrsize
// @TODO the name INDEX could list multiple fonts,
// but we just use the first one.
stbtt__cff_get_index(&b); // name INDEX
topdictidx = stbtt__cff_get_index(&b);
topdict = stbtt__cff_index_get(topdictidx, 0);
stbtt__cff_get_index(&b); // string INDEX
info->gsubrs = stbtt__cff_get_index(&b);
stbtt__dict_get_ints(&topdict, 17, 1, &charstrings);
stbtt__dict_get_ints(&topdict, 0x100 | 6, 1, &cstype);
stbtt__dict_get_ints(&topdict, 0x100 | 36, 1, &fdarrayoff);
stbtt__dict_get_ints(&topdict, 0x100 | 37, 1, &fdselectoff);
info->subrs = stbtt__get_subrs(b, topdict);
// we only support Type 2 charstrings
if (cstype != 2) return 0;
if (charstrings == 0) return 0;
if (fdarrayoff) {
// looks like a CID font
if (!fdselectoff) return 0;
stbtt__buf_seek(&b, fdarrayoff);
info->fontdicts = stbtt__cff_get_index(&b);
info->fdselect = stbtt__buf_range(&b, fdselectoff, b.size-fdselectoff);
}
stbtt__buf_seek(&b, charstrings);
info->charstrings = stbtt__cff_get_index(&b);
}
t = stbtt__find_table(data, fontstart, "maxp");
if (t)
info->numGlyphs = ttUSHORT(data+t+4);
else
info->numGlyphs = 0xffff;
info->svg = -1;
// find a cmap encoding table we understand *now* to avoid searching
// later. (todo: could make this installable)
// the same regardless of glyph.
numTables = ttUSHORT(data + cmap + 2);
info->index_map = 0;
for (i=0; i < numTables; ++i) {
stbtt_uint32 encoding_record = cmap + 4 + 8 * i;
// find an encoding we understand:
switch(ttUSHORT(data+encoding_record)) {
case STBTT_PLATFORM_ID_MICROSOFT:
switch (ttUSHORT(data+encoding_record+2)) {
case STBTT_MS_EID_UNICODE_BMP:
case STBTT_MS_EID_UNICODE_FULL:
// MS/Unicode
info->index_map = cmap + ttULONG(data+encoding_record+4);
break;
}
break;
case STBTT_PLATFORM_ID_UNICODE:
// Mac/iOS has these
// all the encodingIDs are unicode, so we don't bother to check it
info->index_map = cmap + ttULONG(data+encoding_record+4);
break;
}
}
if (info->index_map == 0)
return 0;
info->indexToLocFormat = ttUSHORT(data+info->head + 50);
return 1;
}
STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codepoint)
{
stbtt_uint8 *data = info->data;
stbtt_uint32 index_map = info->index_map;
stbtt_uint16 format = ttUSHORT(data + index_map + 0);
if (format == 0) { // apple byte encoding
stbtt_int32 bytes = ttUSHORT(data + index_map + 2);
if (unicode_codepoint < bytes-6)
return ttBYTE(data + index_map + 6 + unicode_codepoint);
return 0;
} else if (format == 6) {
stbtt_uint32 first = ttUSHORT(data + index_map + 6);
stbtt_uint32 count = ttUSHORT(data + index_map + 8);
if ((stbtt_uint32) unicode_codepoint >= first && (stbtt_uint32) unicode_codepoint < first+count)
return ttUSHORT(data + index_map + 10 + (unicode_codepoint - first)*2);
return 0;
} else if (format == 2) {
STBTT_assert(0); // @TODO: high-byte mapping for japanese/chinese/korean
return 0;
} else if (format == 4) { // standard mapping for windows fonts: binary search collection of ranges
stbtt_uint16 segcount = ttUSHORT(data+index_map+6) >> 1;
stbtt_uint16 searchRange = ttUSHORT(data+index_map+8) >> 1;
stbtt_uint16 entrySelector = ttUSHORT(data+index_map+10);
stbtt_uint16 rangeShift = ttUSHORT(data+index_map+12) >> 1;
// do a binary search of the segments
stbtt_uint32 endCount = index_map + 14;
stbtt_uint32 search = endCount;
if (unicode_codepoint > 0xffff)
return 0;
// they lie from endCount .. endCount + segCount
// but searchRange is the nearest power of two, so...
if (unicode_codepoint >= ttUSHORT(data + search + rangeShift*2))
search += rangeShift*2;
// now decrement to bias correctly to find smallest
search -= 2;
while (entrySelector) {
stbtt_uint16 end;
searchRange >>= 1;
end = ttUSHORT(data + search + searchRange*2);
if (unicode_codepoint > end)
search += searchRange*2;
--entrySelector;
}
search += 2;
{
stbtt_uint16 offset, start;
stbtt_uint16 item = (stbtt_uint16) ((search - endCount) >> 1);
STBTT_assert(unicode_codepoint <= ttUSHORT(data + endCount + 2*item));
start = ttUSHORT(data + index_map + 14 + segcount*2 + 2 + 2*item);
if (unicode_codepoint < start)
return 0;
offset = ttUSHORT(data + index_map + 14 + segcount*6 + 2 + 2*item);
if (offset == 0)
return (stbtt_uint16) (unicode_codepoint + ttSHORT(data + index_map + 14 + segcount*4 + 2 + 2*item));
return ttUSHORT(data + offset + (unicode_codepoint-start)*2 + index_map + 14 + segcount*6 + 2 + 2*item);
}
} else if (format == 12 || format == 13) {
stbtt_uint32 ngroups = ttULONG(data+index_map+12);
stbtt_int32 low,high;
low = 0; high = (stbtt_int32)ngroups;
// Binary search the right group.
while (low < high) {
stbtt_int32 mid = low + ((high-low) >> 1); // rounds down, so low <= mid < high
stbtt_uint32 start_char = ttULONG(data+index_map+16+mid*12);
stbtt_uint32 end_char = ttULONG(data+index_map+16+mid*12+4);
if ((stbtt_uint32) unicode_codepoint < start_char)
high = mid;
else if ((stbtt_uint32) unicode_codepoint > end_char)
low = mid+1;
else {
stbtt_uint32 start_glyph = ttULONG(data+index_map+16+mid*12+8);
if (format == 12)
return start_glyph + unicode_codepoint-start_char;
else // format == 13
return start_glyph;
}
}
return 0; // not found
}
// @TODO
STBTT_assert(0);
return 0;
}
STBTT_DEF int stbtt_GetCodepointShape(const stbtt_fontinfo *info, int unicode_codepoint, stbtt_vertex **vertices)
{
return stbtt_GetGlyphShape(info, stbtt_FindGlyphIndex(info, unicode_codepoint), vertices);
}
static void stbtt_setvertex(stbtt_vertex *v, stbtt_uint8 type, stbtt_int32 x, stbtt_int32 y, stbtt_int32 cx, stbtt_int32 cy)
{
v->type = type;
v->x = (stbtt_int16) x;
v->y = (stbtt_int16) y;
v->cx = (stbtt_int16) cx;
v->cy = (stbtt_int16) cy;
}
static int stbtt__GetGlyfOffset(const stbtt_fontinfo *info, int glyph_index)
{
int g1,g2;
STBTT_assert(!info->cff.size);
if (glyph_index >= info->numGlyphs) return -1; // glyph index out of range
if (info->indexToLocFormat >= 2) return -1; // unknown index->glyph map format
if (info->indexToLocFormat == 0) {
g1 = info->glyf + ttUSHORT(info->data + info->loca + glyph_index * 2) * 2;
g2 = info->glyf + ttUSHORT(info->data + info->loca + glyph_index * 2 + 2) * 2;
} else {
g1 = info->glyf + ttULONG (info->data + info->loca + glyph_index * 4);
g2 = info->glyf + ttULONG (info->data + info->loca + glyph_index * 4 + 4);
}
return g1==g2 ? -1 : g1; // if length is 0, return -1
}
static int stbtt__GetGlyphInfoT2(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1);
STBTT_DEF int stbtt_GetGlyphBox(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1)
{
if (info->cff.size) {
stbtt__GetGlyphInfoT2(info, glyph_index, x0, y0, x1, y1);
} else {
int g = stbtt__GetGlyfOffset(info, glyph_index);
if (g < 0) return 0;
if (x0) *x0 = ttSHORT(info->data + g + 2);
if (y0) *y0 = ttSHORT(info->data + g + 4);
if (x1) *x1 = ttSHORT(info->data + g + 6);
if (y1) *y1 = ttSHORT(info->data + g + 8);
}
return 1;
}
STBTT_DEF int stbtt_GetCodepointBox(const stbtt_fontinfo *info, int codepoint, int *x0, int *y0, int *x1, int *y1)
{
return stbtt_GetGlyphBox(info, stbtt_FindGlyphIndex(info,codepoint), x0,y0,x1,y1);
}
STBTT_DEF int stbtt_IsGlyphEmpty(const stbtt_fontinfo *info, int glyph_index)
{
stbtt_int16 numberOfContours;
int g;
if (info->cff.size)
return stbtt__GetGlyphInfoT2(info, glyph_index, NULL, NULL, NULL, NULL) == 0;
g = stbtt__GetGlyfOffset(info, glyph_index);
if (g < 0) return 1;
numberOfContours = ttSHORT(info->data + g);
return numberOfContours == 0;
}
static int stbtt__close_shape(stbtt_vertex *vertices, int num_vertices, int was_off, int start_off,
stbtt_int32 sx, stbtt_int32 sy, stbtt_int32 scx, stbtt_int32 scy, stbtt_int32 cx, stbtt_int32 cy)
{
if (start_off) {
if (was_off)
stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, (cx+scx)>>1, (cy+scy)>>1, cx,cy);
stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, sx,sy,scx,scy);
} else {
if (was_off)
stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve,sx,sy,cx,cy);
else
stbtt_setvertex(&vertices[num_vertices++], STBTT_vline,sx,sy,0,0);
}
return num_vertices;
}
static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **pvertices)
{
stbtt_int16 numberOfContours;
stbtt_uint8 *endPtsOfContours;
stbtt_uint8 *data = info->data;
stbtt_vertex *vertices=0;
int num_vertices=0;
int g = stbtt__GetGlyfOffset(info, glyph_index);
*pvertices = NULL;
if (g < 0) return 0;
numberOfContours = ttSHORT(data + g);
if (numberOfContours > 0) {
stbtt_uint8 flags=0,flagcount;
stbtt_int32 ins, i,j=0,m,n, next_move, was_off=0, off, start_off=0;
stbtt_int32 x,y,cx,cy,sx,sy, scx,scy;
stbtt_uint8 *points;
endPtsOfContours = (data + g + 10);
ins = ttUSHORT(data + g + 10 + numberOfContours * 2);
points = data + g + 10 + numberOfContours * 2 + 2 + ins;
n = 1+ttUSHORT(endPtsOfContours + numberOfContours*2-2);
m = n + 2*numberOfContours; // a loose bound on how many vertices we might need
vertices = (stbtt_vertex *) STBTT_malloc(m * sizeof(vertices[0]), info->userdata);
if (vertices == 0)
return 0;
next_move = 0;
flagcount=0;
// in first pass, we load uninterpreted data into the allocated array
// above, shifted to the end of the array so we won't overwrite it when
// we create our final data starting from the front
off = m - n; // starting offset for uninterpreted data, regardless of how m ends up being calculated
// first load flags
for (i=0; i < n; ++i) {
if (flagcount == 0) {
flags = *points++;
if (flags & 8)
flagcount = *points++;
} else
--flagcount;
vertices[off+i].type = flags;
}
// now load x coordinates
x=0;
for (i=0; i < n; ++i) {
flags = vertices[off+i].type;
if (flags & 2) {
stbtt_int16 dx = *points++;
x += (flags & 16) ? dx : -dx; // ???
} else {
if (!(flags & 16)) {
x = x + (stbtt_int16) (points[0]*256 + points[1]);
points += 2;
}
}
vertices[off+i].x = (stbtt_int16) x;
}
// now load y coordinates
y=0;
for (i=0; i < n; ++i) {
flags = vertices[off+i].type;
if (flags & 4) {
stbtt_int16 dy = *points++;
y += (flags & 32) ? dy : -dy; // ???
} else {
if (!(flags & 32)) {
y = y + (stbtt_int16) (points[0]*256 + points[1]);
points += 2;
}
}
vertices[off+i].y = (stbtt_int16) y;
}
// now convert them to our format
num_vertices=0;
sx = sy = cx = cy = scx = scy = 0;
for (i=0; i < n; ++i) {
flags = vertices[off+i].type;
x = (stbtt_int16) vertices[off+i].x;
y = (stbtt_int16) vertices[off+i].y;
if (next_move == i) {
if (i != 0)
num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
// now start the new one
start_off = !(flags & 1);
if (start_off) {
// if we start off with an off-curve point, then when we need to find a point on the curve
// where we can start, and we need to save some state for when we wraparound.
scx = x;
scy = y;
if (!(vertices[off+i+1].type & 1)) {
// next point is also a curve point, so interpolate an on-point curve
sx = (x + (stbtt_int32) vertices[off+i+1].x) >> 1;
sy = (y + (stbtt_int32) vertices[off+i+1].y) >> 1;
} else {
// otherwise just use the next point as our start point
sx = (stbtt_int32) vertices[off+i+1].x;
sy = (stbtt_int32) vertices[off+i+1].y;
++i; // we're using point i+1 as the starting point, so skip it
}
} else {
sx = x;
sy = y;
}
stbtt_setvertex(&vertices[num_vertices++], STBTT_vmove,sx,sy,0,0);
was_off = 0;
next_move = 1 + ttUSHORT(endPtsOfContours+j*2);
++j;
} else {
if (!(flags & 1)) { // if it's a curve
if (was_off) // two off-curve control points in a row means interpolate an on-curve midpoint
stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, (cx+x)>>1, (cy+y)>>1, cx, cy);
cx = x;
cy = y;
was_off = 1;
} else {
if (was_off)
stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, x,y, cx, cy);
else
stbtt_setvertex(&vertices[num_vertices++], STBTT_vline, x,y,0,0);
was_off = 0;
}
}
}
num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
} else if (numberOfContours < 0) {
// Compound shapes.
int more = 1;
stbtt_uint8 *comp = data + g + 10;
num_vertices = 0;
vertices = 0;
while (more) {
stbtt_uint16 flags, gidx;
int comp_num_verts = 0, i;
stbtt_vertex *comp_verts = 0, *tmp = 0;
float mtx[6] = {1,0,0,1,0,0}, m, n;
flags = ttSHORT(comp); comp+=2;
gidx = ttSHORT(comp); comp+=2;
if (flags & 2) { // XY values
if (flags & 1) { // shorts
mtx[4] = ttSHORT(comp); comp+=2;
mtx[5] = ttSHORT(comp); comp+=2;
} else {
mtx[4] = ttCHAR(comp); comp+=1;
mtx[5] = ttCHAR(comp); comp+=1;
}
}
else {
// @TODO handle matching point
STBTT_assert(0);
}
if (flags & (1<<3)) { // WE_HAVE_A_SCALE
mtx[0] = mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
mtx[1] = mtx[2] = 0;
} else if (flags & (1<<6)) { // WE_HAVE_AN_X_AND_YSCALE
mtx[0] = ttSHORT(comp)/16384.0f; comp+=2;
mtx[1] = mtx[2] = 0;
mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
} else if (flags & (1<<7)) { // WE_HAVE_A_TWO_BY_TWO
mtx[0] = ttSHORT(comp)/16384.0f; comp+=2;
mtx[1] = ttSHORT(comp)/16384.0f; comp+=2;
mtx[2] = ttSHORT(comp)/16384.0f; comp+=2;
mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
}
// Find transformation scales.
m = (float) STBTT_sqrt(mtx[0]*mtx[0] + mtx[1]*mtx[1]);
n = (float) STBTT_sqrt(mtx[2]*mtx[2] + mtx[3]*mtx[3]);
// Get indexed glyph.
comp_num_verts = stbtt_GetGlyphShape(info, gidx, &comp_verts);
if (comp_num_verts > 0) {
// Transform vertices.
for (i = 0; i < comp_num_verts; ++i) {
stbtt_vertex* v = &comp_verts[i];
stbtt_vertex_type x,y;
x=v->x; y=v->y;
v->x = (stbtt_vertex_type)(m * (mtx[0]*x + mtx[2]*y + mtx[4]));
v->y = (stbtt_vertex_type)(n * (mtx[1]*x + mtx[3]*y + mtx[5]));
x=v->cx; y=v->cy;
v->cx = (stbtt_vertex_type)(m * (mtx[0]*x + mtx[2]*y + mtx[4]));
v->cy = (stbtt_vertex_type)(n * (mtx[1]*x + mtx[3]*y + mtx[5]));
}
// Append vertices.
tmp = (stbtt_vertex*)STBTT_malloc((num_vertices+comp_num_verts)*sizeof(stbtt_vertex), info->userdata);
if (!tmp) {
if (vertices) STBTT_free(vertices, info->userdata);
if (comp_verts) STBTT_free(comp_verts, info->userdata);
return 0;
}
if (num_vertices > 0) STBTT_memcpy(tmp, vertices, num_vertices*sizeof(stbtt_vertex));
STBTT_memcpy(tmp+num_vertices, comp_verts, comp_num_verts*sizeof(stbtt_vertex));
if (vertices) STBTT_free(vertices, info->userdata);
vertices = tmp;
STBTT_free(comp_verts, info->userdata);
num_vertices += comp_num_verts;
}
// More components ?
more = flags & (1<<5);
}
} else {
// numberOfCounters == 0, do nothing
}
*pvertices = vertices;
return num_vertices;
}
typedef struct
{
int bounds;
int started;
float first_x, first_y;
float x, y;
stbtt_int32 min_x, max_x, min_y, max_y;
stbtt_vertex *pvertices;
int num_vertices;
} stbtt__csctx;
#define STBTT__CSCTX_INIT(bounds) {bounds,0, 0,0, 0,0, 0,0,0,0, NULL, 0}
static void stbtt__track_vertex(stbtt__csctx *c, stbtt_int32 x, stbtt_int32 y)
{
if (x > c->max_x || !c->started) c->max_x = x;
if (y > c->max_y || !c->started) c->max_y = y;
if (x < c->min_x || !c->started) c->min_x = x;
if (y < c->min_y || !c->started) c->min_y = y;
c->started = 1;
}
static void stbtt__csctx_v(stbtt__csctx *c, stbtt_uint8 type, stbtt_int32 x, stbtt_int32 y, stbtt_int32 cx, stbtt_int32 cy, stbtt_int32 cx1, stbtt_int32 cy1)
{
if (c->bounds) {
stbtt__track_vertex(c, x, y);
if (type == STBTT_vcubic) {
stbtt__track_vertex(c, cx, cy);
stbtt__track_vertex(c, cx1, cy1);
}
} else {
stbtt_setvertex(&c->pvertices[c->num_vertices], type, x, y, cx, cy);
c->pvertices[c->num_vertices].cx1 = (stbtt_int16) cx1;
c->pvertices[c->num_vertices].cy1 = (stbtt_int16) cy1;
}
c->num_vertices++;
}
static void stbtt__csctx_close_shape(stbtt__csctx *ctx)
{
if (ctx->first_x != ctx->x || ctx->first_y != ctx->y)
stbtt__csctx_v(ctx, STBTT_vline, (int)ctx->first_x, (int)ctx->first_y, 0, 0, 0, 0);
}
static void stbtt__csctx_rmove_to(stbtt__csctx *ctx, float dx, float dy)
{
stbtt__csctx_close_shape(ctx);
ctx->first_x = ctx->x = ctx->x + dx;
ctx->first_y = ctx->y = ctx->y + dy;
stbtt__csctx_v(ctx, STBTT_vmove, (int)ctx->x, (int)ctx->y, 0, 0, 0, 0);
}
static void stbtt__csctx_rline_to(stbtt__csctx *ctx, float dx, float dy)
{
ctx->x += dx;
ctx->y += dy;
stbtt__csctx_v(ctx, STBTT_vline, (int)ctx->x, (int)ctx->y, 0, 0, 0, 0);
}
static void stbtt__csctx_rccurve_to(stbtt__csctx *ctx, float dx1, float dy1, float dx2, float dy2, float dx3, float dy3)
{
float cx1 = ctx->x + dx1;
float cy1 = ctx->y + dy1;
float cx2 = cx1 + dx2;
float cy2 = cy1 + dy2;
ctx->x = cx2 + dx3;
ctx->y = cy2 + dy3;
stbtt__csctx_v(ctx, STBTT_vcubic, (int)ctx->x, (int)ctx->y, (int)cx1, (int)cy1, (int)cx2, (int)cy2);
}
static stbtt__buf stbtt__get_subr(stbtt__buf idx, int n)
{
int count = stbtt__cff_index_count(&idx);
int bias = 107;
if (count >= 33900)
bias = 32768;
else if (count >= 1240)
bias = 1131;
n += bias;
if (n < 0 || n >= count)
return stbtt__new_buf(NULL, 0);
return stbtt__cff_index_get(idx, n);
}
static stbtt__buf stbtt__cid_get_glyph_subrs(const stbtt_fontinfo *info, int glyph_index)
{
stbtt__buf fdselect = info->fdselect;
int nranges, start, end, v, fmt, fdselector = -1, i;
stbtt__buf_seek(&fdselect, 0);
fmt = stbtt__buf_get8(&fdselect);
if (fmt == 0) {
// untested
stbtt__buf_skip(&fdselect, glyph_index);
fdselector = stbtt__buf_get8(&fdselect);
} else if (fmt == 3) {
nranges = stbtt__buf_get16(&fdselect);
start = stbtt__buf_get16(&fdselect);
for (i = 0; i < nranges; i++) {
v = stbtt__buf_get8(&fdselect);
end = stbtt__buf_get16(&fdselect);
if (glyph_index >= start && glyph_index < end) {
fdselector = v;
break;
}
start = end;
}
}
if (fdselector == -1) stbtt__new_buf(NULL, 0);
return stbtt__get_subrs(info->cff, stbtt__cff_index_get(info->fontdicts, fdselector));
}
static int stbtt__run_charstring(const stbtt_fontinfo *info, int glyph_index, stbtt__csctx *c)
{
int in_header = 1, maskbits = 0, subr_stack_height = 0, sp = 0, v, i, b0;
int has_subrs = 0, clear_stack;
float s[48];
stbtt__buf subr_stack[10], subrs = info->subrs, b;
float f;
#define STBTT__CSERR(s) (0)
// this currently ignores the initial width value, which isn't needed if we have hmtx
b = stbtt__cff_index_get(info->charstrings, glyph_index);
while (b.cursor < b.size) {
i = 0;
clear_stack = 1;
b0 = stbtt__buf_get8(&b);
switch (b0) {
// @TODO implement hinting
case 0x13: // hintmask
case 0x14: // cntrmask
if (in_header)
maskbits += (sp / 2); // implicit "vstem"
in_header = 0;
stbtt__buf_skip(&b, (maskbits + 7) / 8);
break;
case 0x01: // hstem
case 0x03: // vstem
case 0x12: // hstemhm
case 0x17: // vstemhm
maskbits += (sp / 2);
break;
case 0x15: // rmoveto
in_header = 0;
if (sp < 2) return STBTT__CSERR("rmoveto stack");
stbtt__csctx_rmove_to(c, s[sp-2], s[sp-1]);
break;
case 0x04: // vmoveto
in_header = 0;
if (sp < 1) return STBTT__CSERR("vmoveto stack");
stbtt__csctx_rmove_to(c, 0, s[sp-1]);
break;
case 0x16: // hmoveto
in_header = 0;
if (sp < 1) return STBTT__CSERR("hmoveto stack");
stbtt__csctx_rmove_to(c, s[sp-1], 0);
break;
case 0x05: // rlineto
if (sp < 2) return STBTT__CSERR("rlineto stack");
for (; i + 1 < sp; i += 2)
stbtt__csctx_rline_to(c, s[i], s[i+1]);
break;
// hlineto/vlineto and vhcurveto/hvcurveto alternate horizontal and vertical
// starting from a different place.
case 0x07: // vlineto
if (sp < 1) return STBTT__CSERR("vlineto stack");
goto vlineto;
case 0x06: // hlineto
if (sp < 1) return STBTT__CSERR("hlineto stack");
for (;;) {
if (i >= sp) break;
stbtt__csctx_rline_to(c, s[i], 0);
i++;
vlineto:
if (i >= sp) break;
stbtt__csctx_rline_to(c, 0, s[i]);
i++;
}
break;
case 0x1F: // hvcurveto
if (sp < 4) return STBTT__CSERR("hvcurveto stack");
goto hvcurveto;
case 0x1E: // vhcurveto
if (sp < 4) return STBTT__CSERR("vhcurveto stack");
for (;;) {
if (i + 3 >= sp) break;
stbtt__csctx_rccurve_to(c, 0, s[i], s[i+1], s[i+2], s[i+3], (sp - i == 5) ? s[i + 4] : 0.0f);
i += 4;
hvcurveto:
if (i + 3 >= sp) break;
stbtt__csctx_rccurve_to(c, s[i], 0, s[i+1], s[i+2], (sp - i == 5) ? s[i+4] : 0.0f, s[i+3]);
i += 4;
}
break;
case 0x08: // rrcurveto
if (sp < 6) return STBTT__CSERR("rcurveline stack");
for (; i + 5 < sp; i += 6)
stbtt__csctx_rccurve_to(c, s[i], s[i+1], s[i+2], s[i+3], s[i+4], s[i+5]);
break;
case 0x18: // rcurveline
if (sp < 8) return STBTT__CSERR("rcurveline stack");
for (; i + 5 < sp - 2; i += 6)
stbtt__csctx_rccurve_to(c, s[i], s[i+1], s[i+2], s[i+3], s[i+4], s[i+5]);
if (i + 1 >= sp) return STBTT__CSERR("rcurveline stack");
stbtt__csctx_rline_to(c, s[i], s[i+1]);
break;
case 0x19: // rlinecurve
if (sp < 8) return STBTT__CSERR("rlinecurve stack");
for (; i + 1 < sp - 6; i += 2)
stbtt__csctx_rline_to(c, s[i], s[i+1]);
if (i + 5 >= sp) return STBTT__CSERR("rlinecurve stack");
stbtt__csctx_rccurve_to(c, s[i], s[i+1], s[i+2], s[i+3], s[i+4], s[i+5]);
break;
case 0x1A: // vvcurveto
case 0x1B: // hhcurveto
if (sp < 4) return STBTT__CSERR("(vv|hh)curveto stack");
f = 0.0;
if (sp & 1) { f = s[i]; i++; }
for (; i + 3 < sp; i += 4) {
if (b0 == 0x1B)
stbtt__csctx_rccurve_to(c, s[i], f, s[i+1], s[i+2], s[i+3], 0.0);
else
stbtt__csctx_rccurve_to(c, f, s[i], s[i+1], s[i+2], 0.0, s[i+3]);
f = 0.0;
}
break;
case 0x0A: // callsubr
if (!has_subrs) {
if (info->fdselect.size)
subrs = stbtt__cid_get_glyph_subrs(info, glyph_index);
has_subrs = 1;
}
// fallthrough
case 0x1D: // callgsubr
if (sp < 1) return STBTT__CSERR("call(g|)subr stack");
v = (int) s[--sp];
if (subr_stack_height >= 10) return STBTT__CSERR("recursion limit");
subr_stack[subr_stack_height++] = b;
b = stbtt__get_subr(b0 == 0x0A ? subrs : info->gsubrs, v);
if (b.size == 0) return STBTT__CSERR("subr not found");
b.cursor = 0;
clear_stack = 0;
break;
case 0x0B: // return
if (subr_stack_height <= 0) return STBTT__CSERR("return outside subr");
b = subr_stack[--subr_stack_height];
clear_stack = 0;
break;
case 0x0E: // endchar
stbtt__csctx_close_shape(c);
return 1;
case 0x0C: { // two-byte escape
float dx1, dx2, dx3, dx4, dx5, dx6, dy1, dy2, dy3, dy4, dy5, dy6;
float dx, dy;
int b1 = stbtt__buf_get8(&b);
switch (b1) {
// @TODO These "flex" implementations ignore the flex-depth and resolution,
// and always draw beziers.
case 0x22: // hflex
if (sp < 7) return STBTT__CSERR("hflex stack");
dx1 = s[0];
dx2 = s[1];
dy2 = s[2];
dx3 = s[3];
dx4 = s[4];
dx5 = s[5];
dx6 = s[6];
stbtt__csctx_rccurve_to(c, dx1, 0, dx2, dy2, dx3, 0);
stbtt__csctx_rccurve_to(c, dx4, 0, dx5, -dy2, dx6, 0);
break;
case 0x23: // flex
if (sp < 13) return STBTT__CSERR("flex stack");
dx1 = s[0];
dy1 = s[1];
dx2 = s[2];
dy2 = s[3];
dx3 = s[4];
dy3 = s[5];
dx4 = s[6];
dy4 = s[7];
dx5 = s[8];
dy5 = s[9];
dx6 = s[10];
dy6 = s[11];
//fd is s[12]
stbtt__csctx_rccurve_to(c, dx1, dy1, dx2, dy2, dx3, dy3);
stbtt__csctx_rccurve_to(c, dx4, dy4, dx5, dy5, dx6, dy6);
break;
case 0x24: // hflex1
if (sp < 9) return STBTT__CSERR("hflex1 stack");
dx1 = s[0];
dy1 = s[1];
dx2 = s[2];
dy2 = s[3];
dx3 = s[4];
dx4 = s[5];
dx5 = s[6];
dy5 = s[7];
dx6 = s[8];
stbtt__csctx_rccurve_to(c, dx1, dy1, dx2, dy2, dx3, 0);
stbtt__csctx_rccurve_to(c, dx4, 0, dx5, dy5, dx6, -(dy1+dy2+dy5));
break;
case 0x25: // flex1
if (sp < 11) return STBTT__CSERR("flex1 stack");
dx1 = s[0];
dy1 = s[1];
dx2 = s[2];
dy2 = s[3];
dx3 = s[4];
dy3 = s[5];
dx4 = s[6];
dy4 = s[7];
dx5 = s[8];
dy5 = s[9];
dx6 = dy6 = s[10];
dx = dx1+dx2+dx3+dx4+dx5;
dy = dy1+dy2+dy3+dy4+dy5;
if (STBTT_fabs(dx) > STBTT_fabs(dy))
dy6 = -dy;
else
dx6 = -dx;
stbtt__csctx_rccurve_to(c, dx1, dy1, dx2, dy2, dx3, dy3);
stbtt__csctx_rccurve_to(c, dx4, dy4, dx5, dy5, dx6, dy6);
break;
default:
return STBTT__CSERR("unimplemented");
}
} break;
default:
if (b0 != 255 && b0 != 28 && (b0 < 32 || b0 > 254))
return STBTT__CSERR("reserved operator");
// push immediate
if (b0 == 255) {
f = (float)(stbtt_int32)stbtt__buf_get32(&b) / 0x10000;
} else {
stbtt__buf_skip(&b, -1);
f = (float)(stbtt_int16)stbtt__cff_int(&b);
}
if (sp >= 48) return STBTT__CSERR("push stack overflow");
s[sp++] = f;
clear_stack = 0;
break;
}
if (clear_stack) sp = 0;
}
return STBTT__CSERR("no endchar");
#undef STBTT__CSERR
}
static int stbtt__GetGlyphShapeT2(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **pvertices)
{
// runs the charstring twice, once to count and once to output (to avoid realloc)
stbtt__csctx count_ctx = STBTT__CSCTX_INIT(1);
stbtt__csctx output_ctx = STBTT__CSCTX_INIT(0);
if (stbtt__run_charstring(info, glyph_index, &count_ctx)) {
*pvertices = (stbtt_vertex*)STBTT_malloc(count_ctx.num_vertices*sizeof(stbtt_vertex), info->userdata);
output_ctx.pvertices = *pvertices;
if (stbtt__run_charstring(info, glyph_index, &output_ctx)) {
STBTT_assert(output_ctx.num_vertices == count_ctx.num_vertices);
return output_ctx.num_vertices;
}
}
*pvertices = NULL;
return 0;
}
static int stbtt__GetGlyphInfoT2(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1)
{
stbtt__csctx c = STBTT__CSCTX_INIT(1);
int r = stbtt__run_charstring(info, glyph_index, &c);
if (x0) *x0 = r ? c.min_x : 0;
if (y0) *y0 = r ? c.min_y : 0;
if (x1) *x1 = r ? c.max_x : 0;
if (y1) *y1 = r ? c.max_y : 0;
return r ? c.num_vertices : 0;
}
STBTT_DEF int stbtt_GetGlyphShape(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **pvertices)
{
if (!info->cff.size)
return stbtt__GetGlyphShapeTT(info, glyph_index, pvertices);
else
return stbtt__GetGlyphShapeT2(info, glyph_index, pvertices);
}
STBTT_DEF void stbtt_GetGlyphHMetrics(const stbtt_fontinfo *info, int glyph_index, int *advanceWidth, int *leftSideBearing)
{
stbtt_uint16 numOfLongHorMetrics = ttUSHORT(info->data+info->hhea + 34);
if (glyph_index < numOfLongHorMetrics) {
if (advanceWidth) *advanceWidth = ttSHORT(info->data + info->hmtx + 4*glyph_index);
if (leftSideBearing) *leftSideBearing = ttSHORT(info->data + info->hmtx + 4*glyph_index + 2);
} else {
if (advanceWidth) *advanceWidth = ttSHORT(info->data + info->hmtx + 4*(numOfLongHorMetrics-1));
if (leftSideBearing) *leftSideBearing = ttSHORT(info->data + info->hmtx + 4*numOfLongHorMetrics + 2*(glyph_index - numOfLongHorMetrics));
}
}
STBTT_DEF int stbtt_GetKerningTableLength(const stbtt_fontinfo *info)
{
stbtt_uint8 *data = info->data + info->kern;
// we only look at the first table. it must be 'horizontal' and format 0.
if (!info->kern)
return 0;
if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
return 0;
if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
return 0;
return ttUSHORT(data+10);
}
STBTT_DEF int stbtt_GetKerningTable(const stbtt_fontinfo *info, stbtt_kerningentry* table, int table_length)
{
stbtt_uint8 *data = info->data + info->kern;
int k, length;
// we only look at the first table. it must be 'horizontal' and format 0.
if (!info->kern)
return 0;
if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
return 0;
if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
return 0;
length = ttUSHORT(data+10);
if (table_length < length)
length = table_length;
for (k = 0; k < length; k++)
{
table[k].glyph1 = ttUSHORT(data+18+(k*6));
table[k].glyph2 = ttUSHORT(data+20+(k*6));
table[k].advance = ttSHORT(data+22+(k*6));
}
return length;
}
static int stbtt__GetGlyphKernInfoAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
{
stbtt_uint8 *data = info->data + info->kern;
stbtt_uint32 needle, straw;
int l, r, m;
// we only look at the first table. it must be 'horizontal' and format 0.
if (!info->kern)
return 0;
if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
return 0;
if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
return 0;
l = 0;
r = ttUSHORT(data+10) - 1;
needle = glyph1 << 16 | glyph2;
while (l <= r) {
m = (l + r) >> 1;
straw = ttULONG(data+18+(m*6)); // note: unaligned read
if (needle < straw)
r = m - 1;
else if (needle > straw)
l = m + 1;
else
return ttSHORT(data+22+(m*6));
}
return 0;
}
static stbtt_int32 stbtt__GetCoverageIndex(stbtt_uint8 *coverageTable, int glyph)
{
stbtt_uint16 coverageFormat = ttUSHORT(coverageTable);
switch(coverageFormat) {
case 1: {
stbtt_uint16 glyphCount = ttUSHORT(coverageTable + 2);
// Binary search.
stbtt_int32 l=0, r=glyphCount-1, m;
int straw, needle=glyph;
while (l <= r) {
stbtt_uint8 *glyphArray = coverageTable + 4;
stbtt_uint16 glyphID;
m = (l + r) >> 1;
glyphID = ttUSHORT(glyphArray + 2 * m);
straw = glyphID;
if (needle < straw)
r = m - 1;
else if (needle > straw)
l = m + 1;
else {
return m;
}
}
} break;
case 2: {
stbtt_uint16 rangeCount = ttUSHORT(coverageTable + 2);
stbtt_uint8 *rangeArray = coverageTable + 4;
// Binary search.
stbtt_int32 l=0, r=rangeCount-1, m;
int strawStart, strawEnd, needle=glyph;
while (l <= r) {
stbtt_uint8 *rangeRecord;
m = (l + r) >> 1;
rangeRecord = rangeArray + 6 * m;
strawStart = ttUSHORT(rangeRecord);
strawEnd = ttUSHORT(rangeRecord + 2);
if (needle < strawStart)
r = m - 1;
else if (needle > strawEnd)
l = m + 1;
else {
stbtt_uint16 startCoverageIndex = ttUSHORT(rangeRecord + 4);
return startCoverageIndex + glyph - strawStart;
}
}
} break;
default: {
// There are no other cases.
STBTT_assert(0);
} break;
}
return -1;
}
static stbtt_int32 stbtt__GetGlyphClass(stbtt_uint8 *classDefTable, int glyph)
{
stbtt_uint16 classDefFormat = ttUSHORT(classDefTable);
switch(classDefFormat)
{
case 1: {
stbtt_uint16 startGlyphID = ttUSHORT(classDefTable + 2);
stbtt_uint16 glyphCount = ttUSHORT(classDefTable + 4);
stbtt_uint8 *classDef1ValueArray = classDefTable + 6;
if (glyph >= startGlyphID && glyph < startGlyphID + glyphCount)
return (stbtt_int32)ttUSHORT(classDef1ValueArray + 2 * (glyph - startGlyphID));
classDefTable = classDef1ValueArray + 2 * glyphCount;
} break;
case 2: {
stbtt_uint16 classRangeCount = ttUSHORT(classDefTable + 2);
stbtt_uint8 *classRangeRecords = classDefTable + 4;
// Binary search.
stbtt_int32 l=0, r=classRangeCount-1, m;
int strawStart, strawEnd, needle=glyph;
while (l <= r) {
stbtt_uint8 *classRangeRecord;
m = (l + r) >> 1;
classRangeRecord = classRangeRecords + 6 * m;
strawStart = ttUSHORT(classRangeRecord);
strawEnd = ttUSHORT(classRangeRecord + 2);
if (needle < strawStart)
r = m - 1;
else if (needle > strawEnd)
l = m + 1;
else
return (stbtt_int32)ttUSHORT(classRangeRecord + 4);
}
classDefTable = classRangeRecords + 6 * classRangeCount;
} break;
default: {
// There are no other cases.
STBTT_assert(0);
} break;
}
return -1;
}
// Define to STBTT_assert(x) if you want to break on unimplemented formats.
#define STBTT_GPOS_TODO_assert(x)
static stbtt_int32 stbtt__GetGlyphGPOSInfoAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
{
stbtt_uint16 lookupListOffset;
stbtt_uint8 *lookupList;
stbtt_uint16 lookupCount;
stbtt_uint8 *data;
stbtt_int32 i;
if (!info->gpos) return 0;
data = info->data + info->gpos;
if (ttUSHORT(data+0) != 1) return 0; // Major version 1
if (ttUSHORT(data+2) != 0) return 0; // Minor version 0
lookupListOffset = ttUSHORT(data+8);
lookupList = data + lookupListOffset;
lookupCount = ttUSHORT(lookupList);
for (i=0; i<lookupCount; ++i) {
stbtt_uint16 lookupOffset = ttUSHORT(lookupList + 2 + 2 * i);
stbtt_uint8 *lookupTable = lookupList + lookupOffset;
stbtt_uint16 lookupType = ttUSHORT(lookupTable);
stbtt_uint16 subTableCount = ttUSHORT(lookupTable + 4);
stbtt_uint8 *subTableOffsets = lookupTable + 6;
switch(lookupType) {
case 2: { // Pair Adjustment Positioning Subtable
stbtt_int32 sti;
for (sti=0; sti<subTableCount; sti++) {
stbtt_uint16 subtableOffset = ttUSHORT(subTableOffsets + 2 * sti);
stbtt_uint8 *table = lookupTable + subtableOffset;
stbtt_uint16 posFormat = ttUSHORT(table);
stbtt_uint16 coverageOffset = ttUSHORT(table + 2);
stbtt_int32 coverageIndex = stbtt__GetCoverageIndex(table + coverageOffset, glyph1);
if (coverageIndex == -1) continue;
switch (posFormat) {
case 1: {
stbtt_int32 l, r, m;
int straw, needle;
stbtt_uint16 valueFormat1 = ttUSHORT(table + 4);
stbtt_uint16 valueFormat2 = ttUSHORT(table + 6);
stbtt_int32 valueRecordPairSizeInBytes = 2;
stbtt_uint16 pairSetCount = ttUSHORT(table + 8);
stbtt_uint16 pairPosOffset = ttUSHORT(table + 10 + 2 * coverageIndex);
stbtt_uint8 *pairValueTable = table + pairPosOffset;
stbtt_uint16 pairValueCount = ttUSHORT(pairValueTable);
stbtt_uint8 *pairValueArray = pairValueTable + 2;
// TODO: Support more formats.
STBTT_GPOS_TODO_assert(valueFormat1 == 4);
if (valueFormat1 != 4) return 0;
STBTT_GPOS_TODO_assert(valueFormat2 == 0);
if (valueFormat2 != 0) return 0;
STBTT_assert(coverageIndex < pairSetCount);
STBTT__NOTUSED(pairSetCount);
needle=glyph2;
r=pairValueCount-1;
l=0;
// Binary search.
while (l <= r) {
stbtt_uint16 secondGlyph;
stbtt_uint8 *pairValue;
m = (l + r) >> 1;
pairValue = pairValueArray + (2 + valueRecordPairSizeInBytes) * m;
secondGlyph = ttUSHORT(pairValue);
straw = secondGlyph;
if (needle < straw)
r = m - 1;
else if (needle > straw)
l = m + 1;
else {
stbtt_int16 xAdvance = ttSHORT(pairValue + 2);
return xAdvance;
}
}
} break;
case 2: {
stbtt_uint16 valueFormat1 = ttUSHORT(table + 4);
stbtt_uint16 valueFormat2 = ttUSHORT(table + 6);
stbtt_uint16 classDef1Offset = ttUSHORT(table + 8);
stbtt_uint16 classDef2Offset = ttUSHORT(table + 10);
int glyph1class = stbtt__GetGlyphClass(table + classDef1Offset, glyph1);
int glyph2class = stbtt__GetGlyphClass(table + classDef2Offset, glyph2);
stbtt_uint16 class1Count = ttUSHORT(table + 12);
stbtt_uint16 class2Count = ttUSHORT(table + 14);
STBTT_assert(glyph1class < class1Count);
STBTT_assert(glyph2class < class2Count);
// TODO: Support more formats.
STBTT_GPOS_TODO_assert(valueFormat1 == 4);
if (valueFormat1 != 4) return 0;
STBTT_GPOS_TODO_assert(valueFormat2 == 0);
if (valueFormat2 != 0) return 0;
if (glyph1class >= 0 && glyph1class < class1Count && glyph2class >= 0 && glyph2class < class2Count) {
stbtt_uint8 *class1Records = table + 16;
stbtt_uint8 *class2Records = class1Records + 2 * (glyph1class * class2Count);
stbtt_int16 xAdvance = ttSHORT(class2Records + 2 * glyph2class);
return xAdvance;
}
} break;
default: {
// There are no other cases.
STBTT_assert(0);
break;
};
}
}
break;
};
default:
// TODO: Implement other stuff.
break;
}
}
return 0;
}
STBTT_DEF int stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int g1, int g2)
{
int xAdvance = 0;
if (info->gpos)
xAdvance += stbtt__GetGlyphGPOSInfoAdvance(info, g1, g2);
else if (info->kern)
xAdvance += stbtt__GetGlyphKernInfoAdvance(info, g1, g2);
return xAdvance;
}
STBTT_DEF int stbtt_GetCodepointKernAdvance(const stbtt_fontinfo *info, int ch1, int ch2)
{
if (!info->kern && !info->gpos) // if no kerning table, don't waste time looking up both codepoint->glyphs
return 0;
return stbtt_GetGlyphKernAdvance(info, stbtt_FindGlyphIndex(info,ch1), stbtt_FindGlyphIndex(info,ch2));
}
STBTT_DEF void stbtt_GetCodepointHMetrics(const stbtt_fontinfo *info, int codepoint, int *advanceWidth, int *leftSideBearing)
{
stbtt_GetGlyphHMetrics(info, stbtt_FindGlyphIndex(info,codepoint), advanceWidth, leftSideBearing);
}
STBTT_DEF void stbtt_GetFontVMetrics(const stbtt_fontinfo *info, int *ascent, int *descent, int *lineGap)
{
if (ascent ) *ascent = ttSHORT(info->data+info->hhea + 4);
if (descent) *descent = ttSHORT(info->data+info->hhea + 6);
if (lineGap) *lineGap = ttSHORT(info->data+info->hhea + 8);
}
STBTT_DEF int stbtt_GetFontVMetricsOS2(const stbtt_fontinfo *info, int *typoAscent, int *typoDescent, int *typoLineGap)
{
int tab = stbtt__find_table(info->data, info->fontstart, "OS/2");
if (!tab)
return 0;
if (typoAscent ) *typoAscent = ttSHORT(info->data+tab + 68);
if (typoDescent) *typoDescent = ttSHORT(info->data+tab + 70);
if (typoLineGap) *typoLineGap = ttSHORT(info->data+tab + 72);
return 1;
}
STBTT_DEF void stbtt_GetFontBoundingBox(const stbtt_fontinfo *info, int *x0, int *y0, int *x1, int *y1)
{
*x0 = ttSHORT(info->data + info->head + 36);
*y0 = ttSHORT(info->data + info->head + 38);
*x1 = ttSHORT(info->data + info->head + 40);
*y1 = ttSHORT(info->data + info->head + 42);
}
STBTT_DEF float stbtt_ScaleForPixelHeight(const stbtt_fontinfo *info, float height)
{
int fheight = ttSHORT(info->data + info->hhea + 4) - ttSHORT(info->data + info->hhea + 6);
return (float) height / fheight;
}
STBTT_DEF float stbtt_ScaleForMappingEmToPixels(const stbtt_fontinfo *info, float pixels)
{
int unitsPerEm = ttUSHORT(info->data + info->head + 18);
return pixels / unitsPerEm;
}
STBTT_DEF void stbtt_FreeShape(const stbtt_fontinfo *info, stbtt_vertex *v)
{
STBTT_free(v, info->userdata);
}
STBTT_DEF stbtt_uint8 *stbtt_FindSVGDoc(const stbtt_fontinfo *info, int gl)
{
int i;
stbtt_uint8 *data = info->data;
stbtt_uint8 *svg_doc_list = data + stbtt__get_svg((stbtt_fontinfo *) info);
int numEntries = ttUSHORT(svg_doc_list);
stbtt_uint8 *svg_docs = svg_doc_list + 2;
for(i=0; i<numEntries; i++) {
stbtt_uint8 *svg_doc = svg_docs + (12 * i);
if ((gl >= ttUSHORT(svg_doc)) && (gl <= ttUSHORT(svg_doc + 2)))
return svg_doc;
}
return 0;
}
STBTT_DEF int stbtt_GetGlyphSVG(const stbtt_fontinfo *info, int gl, const char **svg)
{
stbtt_uint8 *data = info->data;
stbtt_uint8 *svg_doc;
if (info->svg == 0)
return 0;
svg_doc = stbtt_FindSVGDoc(info, gl);
if (svg_doc != NULL) {
*svg = (char *) data + info->svg + ttULONG(svg_doc + 4);
return ttULONG(svg_doc + 8);
} else {
return 0;
}
}
STBTT_DEF int stbtt_GetCodepointSVG(const stbtt_fontinfo *info, int unicode_codepoint, const char **svg)
{
return stbtt_GetGlyphSVG(info, stbtt_FindGlyphIndex(info, unicode_codepoint), svg);
}
//////////////////////////////////////////////////////////////////////////////
//
// antialiasing software rasterizer
//
STBTT_DEF void stbtt_GetGlyphBitmapBoxSubpixel(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y,float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1)
{
int x0=0,y0=0,x1,y1; // =0 suppresses compiler warning
if (!stbtt_GetGlyphBox(font, glyph, &x0,&y0,&x1,&y1)) {
// e.g. space character
if (ix0) *ix0 = 0;
if (iy0) *iy0 = 0;
if (ix1) *ix1 = 0;
if (iy1) *iy1 = 0;
} else {
// move to integral bboxes (treating pixels as little squares, what pixels get touched)?
if (ix0) *ix0 = STBTT_ifloor( x0 * scale_x + shift_x);
if (iy0) *iy0 = STBTT_ifloor(-y1 * scale_y + shift_y);
if (ix1) *ix1 = STBTT_iceil ( x1 * scale_x + shift_x);
if (iy1) *iy1 = STBTT_iceil (-y0 * scale_y + shift_y);
}
}
STBTT_DEF void stbtt_GetGlyphBitmapBox(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1)
{
stbtt_GetGlyphBitmapBoxSubpixel(font, glyph, scale_x, scale_y,0.0f,0.0f, ix0, iy0, ix1, iy1);
}
STBTT_DEF void stbtt_GetCodepointBitmapBoxSubpixel(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1)
{
stbtt_GetGlyphBitmapBoxSubpixel(font, stbtt_FindGlyphIndex(font,codepoint), scale_x, scale_y,shift_x,shift_y, ix0,iy0,ix1,iy1);
}
STBTT_DEF void stbtt_GetCodepointBitmapBox(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1)
{
stbtt_GetCodepointBitmapBoxSubpixel(font, codepoint, scale_x, scale_y,0.0f,0.0f, ix0,iy0,ix1,iy1);
}
//////////////////////////////////////////////////////////////////////////////
//
// Rasterizer
typedef struct stbtt__hheap_chunk
{
struct stbtt__hheap_chunk *next;
} stbtt__hheap_chunk;
typedef struct stbtt__hheap
{
struct stbtt__hheap_chunk *head;
void *first_free;
int num_remaining_in_head_chunk;
} stbtt__hheap;
static void *stbtt__hheap_alloc(stbtt__hheap *hh, size_t size, void *userdata)
{
if (hh->first_free) {
void *p = hh->first_free;
hh->first_free = * (void **) p;
return p;
} else {
if (hh->num_remaining_in_head_chunk == 0) {
int count = (size < 32 ? 2000 : size < 128 ? 800 : 100);
stbtt__hheap_chunk *c = (stbtt__hheap_chunk *) STBTT_malloc(sizeof(stbtt__hheap_chunk) + size * count, userdata);
if (c == NULL)
return NULL;
c->next = hh->head;
hh->head = c;
hh->num_remaining_in_head_chunk = count;
}
--hh->num_remaining_in_head_chunk;
return (char *) (hh->head) + sizeof(stbtt__hheap_chunk) + size * hh->num_remaining_in_head_chunk;
}
}
static void stbtt__hheap_free(stbtt__hheap *hh, void *p)
{
*(void **) p = hh->first_free;
hh->first_free = p;
}
static void stbtt__hheap_cleanup(stbtt__hheap *hh, void *userdata)
{
stbtt__hheap_chunk *c = hh->head;
while (c) {
stbtt__hheap_chunk *n = c->next;
STBTT_free(c, userdata);
c = n;
}
}
typedef struct stbtt__edge {
float x0,y0, x1,y1;
int invert;
} stbtt__edge;
typedef struct stbtt__active_edge
{
struct stbtt__active_edge *next;
#if STBTT_RASTERIZER_VERSION==1
int x,dx;
float ey;
int direction;
#elif STBTT_RASTERIZER_VERSION==2
float fx,fdx,fdy;
float direction;
float sy;
float ey;
#else
#error "Unrecognized value of STBTT_RASTERIZER_VERSION"
#endif
} stbtt__active_edge;
#if STBTT_RASTERIZER_VERSION == 1
#define STBTT_FIXSHIFT 10
#define STBTT_FIX (1 << STBTT_FIXSHIFT)
#define STBTT_FIXMASK (STBTT_FIX-1)
static stbtt__active_edge *stbtt__new_active(stbtt__hheap *hh, stbtt__edge *e, int off_x, float start_point, void *userdata)
{
stbtt__active_edge *z = (stbtt__active_edge *) stbtt__hheap_alloc(hh, sizeof(*z), userdata);
float dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
STBTT_assert(z != NULL);
if (!z) return z;
// round dx down to avoid overshooting
if (dxdy < 0)
z->dx = -STBTT_ifloor(STBTT_FIX * -dxdy);
else
z->dx = STBTT_ifloor(STBTT_FIX * dxdy);
z->x = STBTT_ifloor(STBTT_FIX * e->x0 + z->dx * (start_point - e->y0)); // use z->dx so when we offset later it's by the same amount
z->x -= off_x * STBTT_FIX;
z->ey = e->y1;
z->next = 0;
z->direction = e->invert ? 1 : -1;
return z;
}
#elif STBTT_RASTERIZER_VERSION == 2
static stbtt__active_edge *stbtt__new_active(stbtt__hheap *hh, stbtt__edge *e, int off_x, float start_point, void *userdata)
{
stbtt__active_edge *z = (stbtt__active_edge *) stbtt__hheap_alloc(hh, sizeof(*z), userdata);
float dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
STBTT_assert(z != NULL);
//STBTT_assert(e->y0 <= start_point);
if (!z) return z;
z->fdx = dxdy;
z->fdy = dxdy != 0.0f ? (1.0f/dxdy) : 0.0f;
z->fx = e->x0 + dxdy * (start_point - e->y0);
z->fx -= off_x;
z->direction = e->invert ? 1.0f : -1.0f;
z->sy = e->y0;
z->ey = e->y1;
z->next = 0;
return z;
}
#else
#error "Unrecognized value of STBTT_RASTERIZER_VERSION"
#endif
#if STBTT_RASTERIZER_VERSION == 1
// note: this routine clips fills that extend off the edges... ideally this
// wouldn't happen, but it could happen if the truetype glyph bounding boxes
// are wrong, or if the user supplies a too-small bitmap
static void stbtt__fill_active_edges(unsigned char *scanline, int len, stbtt__active_edge *e, int max_weight)
{
// non-zero winding fill
int x0=0, w=0;
while (e) {
if (w == 0) {
// if we're currently at zero, we need to record the edge start point
x0 = e->x; w += e->direction;
} else {
int x1 = e->x; w += e->direction;
// if we went to zero, we need to draw
if (w == 0) {
int i = x0 >> STBTT_FIXSHIFT;
int j = x1 >> STBTT_FIXSHIFT;
if (i < len && j >= 0) {
if (i == j) {
// x0,x1 are the same pixel, so compute combined coverage
scanline[i] = scanline[i] + (stbtt_uint8) ((x1 - x0) * max_weight >> STBTT_FIXSHIFT);
} else {
if (i >= 0) // add antialiasing for x0
scanline[i] = scanline[i] + (stbtt_uint8) (((STBTT_FIX - (x0 & STBTT_FIXMASK)) * max_weight) >> STBTT_FIXSHIFT);
else
i = -1; // clip
if (j < len) // add antialiasing for x1
scanline[j] = scanline[j] + (stbtt_uint8) (((x1 & STBTT_FIXMASK) * max_weight) >> STBTT_FIXSHIFT);
else
j = len; // clip
for (++i; i < j; ++i) // fill pixels between x0 and x1
scanline[i] = scanline[i] + (stbtt_uint8) max_weight;
}
}
}
}
e = e->next;
}
}
static void stbtt__rasterize_sorted_edges(stbtt__bitmap *result, stbtt__edge *e, int n, int vsubsample, int off_x, int off_y, void *userdata)
{
stbtt__hheap hh = { 0, 0, 0 };
stbtt__active_edge *active = NULL;
int y,j=0;
int max_weight = (255 / vsubsample); // weight per vertical scanline
int s; // vertical subsample index
unsigned char scanline_data[512], *scanline;
if (result->w > 512)
scanline = (unsigned char *) STBTT_malloc(result->w, userdata);
else
scanline = scanline_data;
y = off_y * vsubsample;
e[n].y0 = (off_y + result->h) * (float) vsubsample + 1;
while (j < result->h) {
STBTT_memset(scanline, 0, result->w);
for (s=0; s < vsubsample; ++s) {
// find center of pixel for this scanline
float scan_y = y + 0.5f;
stbtt__active_edge **step = &active;
// update all active edges;
// remove all active edges that terminate before the center of this scanline
while (*step) {
stbtt__active_edge * z = *step;
if (z->ey <= scan_y) {
*step = z->next; // delete from list
STBTT_assert(z->direction);
z->direction = 0;
stbtt__hheap_free(&hh, z);
} else {
z->x += z->dx; // advance to position for current scanline
step = &((*step)->next); // advance through list
}
}
// resort the list if needed
for(;;) {
int changed=0;
step = &active;
while (*step && (*step)->next) {
if ((*step)->x > (*step)->next->x) {
stbtt__active_edge *t = *step;
stbtt__active_edge *q = t->next;
t->next = q->next;
q->next = t;
*step = q;
changed = 1;
}
step = &(*step)->next;
}
if (!changed) break;
}
// insert all edges that start before the center of this scanline -- omit ones that also end on this scanline
while (e->y0 <= scan_y) {
if (e->y1 > scan_y) {
stbtt__active_edge *z = stbtt__new_active(&hh, e, off_x, scan_y, userdata);
if (z != NULL) {
// find insertion point
if (active == NULL)
active = z;
else if (z->x < active->x) {
// insert at front
z->next = active;
active = z;
} else {
// find thing to insert AFTER
stbtt__active_edge *p = active;
while (p->next && p->next->x < z->x)
p = p->next;
// at this point, p->next->x is NOT < z->x
z->next = p->next;
p->next = z;
}
}
}
++e;
}
// now process all active edges in XOR fashion
if (active)
stbtt__fill_active_edges(scanline, result->w, active, max_weight);
++y;
}
STBTT_memcpy(result->pixels + j * result->stride, scanline, result->w);
++j;
}
stbtt__hheap_cleanup(&hh, userdata);
if (scanline != scanline_data)
STBTT_free(scanline, userdata);
}
#elif STBTT_RASTERIZER_VERSION == 2
// the edge passed in here does not cross the vertical line at x or the vertical line at x+1
// (i.e. it has already been clipped to those)
static void stbtt__handle_clipped_edge(float *scanline, int x, stbtt__active_edge *e, float x0, float y0, float x1, float y1)
{
if (y0 == y1) return;
STBTT_assert(y0 < y1);
STBTT_assert(e->sy <= e->ey);
if (y0 > e->ey) return;
if (y1 < e->sy) return;
if (y0 < e->sy) {
x0 += (x1-x0) * (e->sy - y0) / (y1-y0);
y0 = e->sy;
}
if (y1 > e->ey) {
x1 += (x1-x0) * (e->ey - y1) / (y1-y0);
y1 = e->ey;
}
if (x0 == x)
STBTT_assert(x1 <= x+1);
else if (x0 == x+1)
STBTT_assert(x1 >= x);
else if (x0 <= x)
STBTT_assert(x1 <= x);
else if (x0 >= x+1)
STBTT_assert(x1 >= x+1);
else
STBTT_assert(x1 >= x && x1 <= x+1);
if (x0 <= x && x1 <= x)
scanline[x] += e->direction * (y1-y0);
else if (x0 >= x+1 && x1 >= x+1)
;
else {
STBTT_assert(x0 >= x && x0 <= x+1 && x1 >= x && x1 <= x+1);
scanline[x] += e->direction * (y1-y0) * (1-((x0-x)+(x1-x))/2); // coverage = 1 - average x position
}
}
static void stbtt__fill_active_edges_new(float *scanline, float *scanline_fill, int len, stbtt__active_edge *e, float y_top)
{
float y_bottom = y_top+1;
while (e) {
// brute force every pixel
// compute intersection points with top & bottom
STBTT_assert(e->ey >= y_top);
if (e->fdx == 0) {
float x0 = e->fx;
if (x0 < len) {
if (x0 >= 0) {
stbtt__handle_clipped_edge(scanline,(int) x0,e, x0,y_top, x0,y_bottom);
stbtt__handle_clipped_edge(scanline_fill-1,(int) x0+1,e, x0,y_top, x0,y_bottom);
} else {
stbtt__handle_clipped_edge(scanline_fill-1,0,e, x0,y_top, x0,y_bottom);
}
}
} else {
float x0 = e->fx;
float dx = e->fdx;
float xb = x0 + dx;
float x_top, x_bottom;
float sy0,sy1;
float dy = e->fdy;
STBTT_assert(e->sy <= y_bottom && e->ey >= y_top);
// compute endpoints of line segment clipped to this scanline (if the
// line segment starts on this scanline. x0 is the intersection of the
// line with y_top, but that may be off the line segment.
if (e->sy > y_top) {
x_top = x0 + dx * (e->sy - y_top);
sy0 = e->sy;
} else {
x_top = x0;
sy0 = y_top;
}
if (e->ey < y_bottom) {
x_bottom = x0 + dx * (e->ey - y_top);
sy1 = e->ey;
} else {
x_bottom = xb;
sy1 = y_bottom;
}
if (x_top >= 0 && x_bottom >= 0 && x_top < len && x_bottom < len) {
// from here on, we don't have to range check x values
if ((int) x_top == (int) x_bottom) {
float height;
// simple case, only spans one pixel
int x = (int) x_top;
height = sy1 - sy0;
STBTT_assert(x >= 0 && x < len);
scanline[x] += e->direction * (1-((x_top - x) + (x_bottom-x))/2) * height;
scanline_fill[x] += e->direction * height; // everything right of this pixel is filled
} else {
int x,x1,x2;
float y_crossing, step, sign, area;
// covers 2+ pixels
if (x_top > x_bottom) {
// flip scanline vertically; signed area is the same
float t;
sy0 = y_bottom - (sy0 - y_top);
sy1 = y_bottom - (sy1 - y_top);
t = sy0, sy0 = sy1, sy1 = t;
t = x_bottom, x_bottom = x_top, x_top = t;
dx = -dx;
dy = -dy;
t = x0, x0 = xb, xb = t;
}
x1 = (int) x_top;
x2 = (int) x_bottom;
// compute intersection with y axis at x1+1
y_crossing = (x1+1 - x0) * dy + y_top;
sign = e->direction;
// area of the rectangle covered from y0..y_crossing
area = sign * (y_crossing-sy0);
// area of the triangle (x_top,y0), (x+1,y0), (x+1,y_crossing)
scanline[x1] += area * (1-((x_top - x1)+(x1+1-x1))/2);
step = sign * dy;
for (x = x1+1; x < x2; ++x) {
scanline[x] += area + step/2;
area += step;
}
y_crossing += dy * (x2 - (x1+1));
STBTT_assert(STBTT_fabs(area) <= 1.01f);
scanline[x2] += area + sign * (1-((x2-x2)+(x_bottom-x2))/2) * (sy1-y_crossing);
scanline_fill[x2] += sign * (sy1-sy0);
}
} else {
// if edge goes outside of box we're drawing, we require
// clipping logic. since this does not match the intended use
// of this library, we use a different, very slow brute
// force implementation
int x;
for (x=0; x < len; ++x) {
// cases:
//
// there can be up to two intersections with the pixel. any intersection
// with left or right edges can be handled by splitting into two (or three)
// regions. intersections with top & bottom do not necessitate case-wise logic.
//
// the old way of doing this found the intersections with the left & right edges,
// then used some simple logic to produce up to three segments in sorted order
// from top-to-bottom. however, this had a problem: if an x edge was epsilon
// across the x border, then the corresponding y position might not be distinct
// from the other y segment, and it might ignored as an empty segment. to avoid
// that, we need to explicitly produce segments based on x positions.
// rename variables to clearly-defined pairs
float y0 = y_top;
float x1 = (float) (x);
float x2 = (float) (x+1);
float x3 = xb;
float y3 = y_bottom;
// x = e->x + e->dx * (y-y_top)
// (y-y_top) = (x - e->x) / e->dx
// y = (x - e->x) / e->dx + y_top
float y1 = (x - x0) / dx + y_top;
float y2 = (x+1 - x0) / dx + y_top;
if (x0 < x1 && x3 > x2) { // three segments descending down-right
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x1,y1);
stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x2,y2);
stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
} else if (x3 < x1 && x0 > x2) { // three segments descending down-left
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x2,y2);
stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x1,y1);
stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x3,y3);
} else if (x0 < x1 && x3 > x1) { // two segments across x, down-right
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x1,y1);
stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x3,y3);
} else if (x3 < x1 && x0 > x1) { // two segments across x, down-left
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x1,y1);
stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x3,y3);
} else if (x0 < x2 && x3 > x2) { // two segments across x+1, down-right
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x2,y2);
stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
} else if (x3 < x2 && x0 > x2) { // two segments across x+1, down-left
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x2,y2);
stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
} else { // one segment
stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x3,y3);
}
}
}
}
e = e->next;
}
}
// directly AA rasterize edges w/o supersampling
static void stbtt__rasterize_sorted_edges(stbtt__bitmap *result, stbtt__edge *e, int n, int vsubsample, int off_x, int off_y, void *userdata)
{
stbtt__hheap hh = { 0, 0, 0 };
stbtt__active_edge *active = NULL;
int y,j=0, i;
float scanline_data[129], *scanline, *scanline2;
STBTT__NOTUSED(vsubsample);
if (result->w > 64)
scanline = (float *) STBTT_malloc((result->w*2+1) * sizeof(float), userdata);
else
scanline = scanline_data;
scanline2 = scanline + result->w;
y = off_y;
e[n].y0 = (float) (off_y + result->h) + 1;
while (j < result->h) {
// find center of pixel for this scanline
float scan_y_top = y + 0.0f;
float scan_y_bottom = y + 1.0f;
stbtt__active_edge **step = &active;
STBTT_memset(scanline , 0, result->w*sizeof(scanline[0]));
STBTT_memset(scanline2, 0, (result->w+1)*sizeof(scanline[0]));
// update all active edges;
// remove all active edges that terminate before the top of this scanline
while (*step) {
stbtt__active_edge * z = *step;
if (z->ey <= scan_y_top) {
*step = z->next; // delete from list
STBTT_assert(z->direction);
z->direction = 0;
stbtt__hheap_free(&hh, z);
} else {
step = &((*step)->next); // advance through list
}
}
// insert all edges that start before the bottom of this scanline
while (e->y0 <= scan_y_bottom) {
if (e->y0 != e->y1) {
stbtt__active_edge *z = stbtt__new_active(&hh, e, off_x, scan_y_top, userdata);
if (z != NULL) {
if (j == 0 && off_y != 0) {
if (z->ey < scan_y_top) {
// this can happen due to subpixel positioning and some kind of fp rounding error i think
z->ey = scan_y_top;
}
}
STBTT_assert(z->ey >= scan_y_top); // if we get really unlucky a tiny bit of an edge can be out of bounds
// insert at front
z->next = active;
active = z;
}
}
++e;
}
// now process all active edges
if (active)
stbtt__fill_active_edges_new(scanline, scanline2+1, result->w, active, scan_y_top);
{
float sum = 0;
for (i=0; i < result->w; ++i) {
float k;
int m;
sum += scanline2[i];
k = scanline[i] + sum;
k = (float) STBTT_fabs(k)*255 + 0.5f;
m = (int) k;
if (m > 255) m = 255;
result->pixels[j*result->stride + i] = (unsigned char) m;
}
}
// advance all the edges
step = &active;
while (*step) {
stbtt__active_edge *z = *step;
z->fx += z->fdx; // advance to position for current scanline
step = &((*step)->next); // advance through list
}
++y;
++j;
}
stbtt__hheap_cleanup(&hh, userdata);
if (scanline != scanline_data)
STBTT_free(scanline, userdata);
}
#else
#error "Unrecognized value of STBTT_RASTERIZER_VERSION"
#endif
#define STBTT__COMPARE(a,b) ((a)->y0 < (b)->y0)
static void stbtt__sort_edges_ins_sort(stbtt__edge *p, int n)
{
int i,j;
for (i=1; i < n; ++i) {
stbtt__edge t = p[i], *a = &t;
j = i;
while (j > 0) {
stbtt__edge *b = &p[j-1];
int c = STBTT__COMPARE(a,b);
if (!c) break;
p[j] = p[j-1];
--j;
}
if (i != j)
p[j] = t;
}
}
static void stbtt__sort_edges_quicksort(stbtt__edge *p, int n)
{
/* threshold for transitioning to insertion sort */
while (n > 12) {
stbtt__edge t;
int c01,c12,c,m,i,j;
/* compute median of three */
m = n >> 1;
c01 = STBTT__COMPARE(&p[0],&p[m]);
c12 = STBTT__COMPARE(&p[m],&p[n-1]);
/* if 0 >= mid >= end, or 0 < mid < end, then use mid */
if (c01 != c12) {
/* otherwise, we'll need to swap something else to middle */
int z;
c = STBTT__COMPARE(&p[0],&p[n-1]);
/* 0>mid && mid<n: 0>n => n; 0<n => 0 */
/* 0<mid && mid>n: 0>n => 0; 0<n => n */
z = (c == c12) ? 0 : n-1;
t = p[z];
p[z] = p[m];
p[m] = t;
}
/* now p[m] is the median-of-three */
/* swap it to the beginning so it won't move around */
t = p[0];
p[0] = p[m];
p[m] = t;
/* partition loop */
i=1;
j=n-1;
for(;;) {
/* handling of equality is crucial here */
/* for sentinels & efficiency with duplicates */
for (;;++i) {
if (!STBTT__COMPARE(&p[i], &p[0])) break;
}
for (;;--j) {
if (!STBTT__COMPARE(&p[0], &p[j])) break;
}
/* make sure we haven't crossed */
if (i >= j) break;
t = p[i];
p[i] = p[j];
p[j] = t;
++i;
--j;
}
/* recurse on smaller side, iterate on larger */
if (j < (n-i)) {
stbtt__sort_edges_quicksort(p,j);
p = p+i;
n = n-i;
} else {
stbtt__sort_edges_quicksort(p+i, n-i);
n = j;
}
}
}
static void stbtt__sort_edges(stbtt__edge *p, int n)
{
stbtt__sort_edges_quicksort(p, n);
stbtt__sort_edges_ins_sort(p, n);
}
typedef struct
{
float x,y;
} stbtt__point;
static void stbtt__rasterize(stbtt__bitmap *result, stbtt__point *pts, int *wcount, int windings, float scale_x, float scale_y, float shift_x, float shift_y, int off_x, int off_y, int invert, void *userdata)
{
float y_scale_inv = invert ? -scale_y : scale_y;
stbtt__edge *e;
int n,i,j,k,m;
#if STBTT_RASTERIZER_VERSION == 1
int vsubsample = result->h < 8 ? 15 : 5;
#elif STBTT_RASTERIZER_VERSION == 2
int vsubsample = 1;
#else
#error "Unrecognized value of STBTT_RASTERIZER_VERSION"
#endif
// vsubsample should divide 255 evenly; otherwise we won't reach full opacity
// now we have to blow out the windings into explicit edge lists
n = 0;
for (i=0; i < windings; ++i)
n += wcount[i];
e = (stbtt__edge *) STBTT_malloc(sizeof(*e) * (n+1), userdata); // add an extra one as a sentinel
if (e == 0) return;
n = 0;
m=0;
for (i=0; i < windings; ++i) {
stbtt__point *p = pts + m;
m += wcount[i];
j = wcount[i]-1;
for (k=0; k < wcount[i]; j=k++) {
int a=k,b=j;
// skip the edge if horizontal
if (p[j].y == p[k].y)
continue;
// add edge from j to k to the list
e[n].invert = 0;
if (invert ? p[j].y > p[k].y : p[j].y < p[k].y) {
e[n].invert = 1;
a=j,b=k;
}
e[n].x0 = p[a].x * scale_x + shift_x;
e[n].y0 = (p[a].y * y_scale_inv + shift_y) * vsubsample;
e[n].x1 = p[b].x * scale_x + shift_x;
e[n].y1 = (p[b].y * y_scale_inv + shift_y) * vsubsample;
++n;
}
}
// now sort the edges by their highest point (should snap to integer, and then by x)
//STBTT_sort(e, n, sizeof(e[0]), stbtt__edge_compare);
stbtt__sort_edges(e, n);
// now, traverse the scanlines and find the intersections on each scanline, use xor winding rule
stbtt__rasterize_sorted_edges(result, e, n, vsubsample, off_x, off_y, userdata);
STBTT_free(e, userdata);
}
static void stbtt__add_point(stbtt__point *points, int n, float x, float y)
{
if (!points) return; // during first pass, it's unallocated
points[n].x = x;
points[n].y = y;
}
// tessellate until threshold p is happy... @TODO warped to compensate for non-linear stretching
static int stbtt__tesselate_curve(stbtt__point *points, int *num_points, float x0, float y0, float x1, float y1, float x2, float y2, float objspace_flatness_squared, int n)
{
// midpoint
float mx = (x0 + 2*x1 + x2)/4;
float my = (y0 + 2*y1 + y2)/4;
// versus directly drawn line
float dx = (x0+x2)/2 - mx;
float dy = (y0+y2)/2 - my;
if (n > 16) // 65536 segments on one curve better be enough!
return 1;
if (dx*dx+dy*dy > objspace_flatness_squared) { // half-pixel error allowed... need to be smaller if AA
stbtt__tesselate_curve(points, num_points, x0,y0, (x0+x1)/2.0f,(y0+y1)/2.0f, mx,my, objspace_flatness_squared,n+1);
stbtt__tesselate_curve(points, num_points, mx,my, (x1+x2)/2.0f,(y1+y2)/2.0f, x2,y2, objspace_flatness_squared,n+1);
} else {
stbtt__add_point(points, *num_points,x2,y2);
*num_points = *num_points+1;
}
return 1;
}
static void stbtt__tesselate_cubic(stbtt__point *points, int *num_points, float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3, float objspace_flatness_squared, int n)
{
// @TODO this "flatness" calculation is just made-up nonsense that seems to work well enough
float dx0 = x1-x0;
float dy0 = y1-y0;
float dx1 = x2-x1;
float dy1 = y2-y1;
float dx2 = x3-x2;
float dy2 = y3-y2;
float dx = x3-x0;
float dy = y3-y0;
float longlen = (float) (STBTT_sqrt(dx0*dx0+dy0*dy0)+STBTT_sqrt(dx1*dx1+dy1*dy1)+STBTT_sqrt(dx2*dx2+dy2*dy2));
float shortlen = (float) STBTT_sqrt(dx*dx+dy*dy);
float flatness_squared = longlen*longlen-shortlen*shortlen;
if (n > 16) // 65536 segments on one curve better be enough!
return;
if (flatness_squared > objspace_flatness_squared) {
float x01 = (x0+x1)/2;
float y01 = (y0+y1)/2;
float x12 = (x1+x2)/2;
float y12 = (y1+y2)/2;
float x23 = (x2+x3)/2;
float y23 = (y2+y3)/2;
float xa = (x01+x12)/2;
float ya = (y01+y12)/2;
float xb = (x12+x23)/2;
float yb = (y12+y23)/2;
float mx = (xa+xb)/2;
float my = (ya+yb)/2;
stbtt__tesselate_cubic(points, num_points, x0,y0, x01,y01, xa,ya, mx,my, objspace_flatness_squared,n+1);
stbtt__tesselate_cubic(points, num_points, mx,my, xb,yb, x23,y23, x3,y3, objspace_flatness_squared,n+1);
} else {
stbtt__add_point(points, *num_points,x3,y3);
*num_points = *num_points+1;
}
}
// returns number of contours
static stbtt__point *stbtt_FlattenCurves(stbtt_vertex *vertices, int num_verts, float objspace_flatness, int **contour_lengths, int *num_contours, void *userdata)
{
stbtt__point *points=0;
int num_points=0;
float objspace_flatness_squared = objspace_flatness * objspace_flatness;
int i,n=0,start=0, pass;
// count how many "moves" there are to get the contour count
for (i=0; i < num_verts; ++i)
if (vertices[i].type == STBTT_vmove)
++n;
*num_contours = n;
if (n == 0) return 0;
*contour_lengths = (int *) STBTT_malloc(sizeof(**contour_lengths) * n, userdata);
if (*contour_lengths == 0) {
*num_contours = 0;
return 0;
}
// make two passes through the points so we don't need to realloc
for (pass=0; pass < 2; ++pass) {
float x=0,y=0;
if (pass == 1) {
points = (stbtt__point *) STBTT_malloc(num_points * sizeof(points[0]), userdata);
if (points == NULL) goto error;
}
num_points = 0;
n= -1;
for (i=0; i < num_verts; ++i) {
switch (vertices[i].type) {
case STBTT_vmove:
// start the next contour
if (n >= 0)
(*contour_lengths)[n] = num_points - start;
++n;
start = num_points;
x = vertices[i].x, y = vertices[i].y;
stbtt__add_point(points, num_points++, x,y);
break;
case STBTT_vline:
x = vertices[i].x, y = vertices[i].y;
stbtt__add_point(points, num_points++, x, y);
break;
case STBTT_vcurve:
stbtt__tesselate_curve(points, &num_points, x,y,
vertices[i].cx, vertices[i].cy,
vertices[i].x, vertices[i].y,
objspace_flatness_squared, 0);
x = vertices[i].x, y = vertices[i].y;
break;
case STBTT_vcubic:
stbtt__tesselate_cubic(points, &num_points, x,y,
vertices[i].cx, vertices[i].cy,
vertices[i].cx1, vertices[i].cy1,
vertices[i].x, vertices[i].y,
objspace_flatness_squared, 0);
x = vertices[i].x, y = vertices[i].y;
break;
}
}
(*contour_lengths)[n] = num_points - start;
}
return points;
error:
STBTT_free(points, userdata);
STBTT_free(*contour_lengths, userdata);
*contour_lengths = 0;
*num_contours = 0;
return NULL;
}
STBTT_DEF void stbtt_Rasterize(stbtt__bitmap *result, float flatness_in_pixels, stbtt_vertex *vertices, int num_verts, float scale_x, float scale_y, float shift_x, float shift_y, int x_off, int y_off, int invert, void *userdata)
{
float scale = scale_x > scale_y ? scale_y : scale_x;
int winding_count = 0;
int *winding_lengths = NULL;
stbtt__point *windings = stbtt_FlattenCurves(vertices, num_verts, flatness_in_pixels / scale, &winding_lengths, &winding_count, userdata);
if (windings) {
stbtt__rasterize(result, windings, winding_lengths, winding_count, scale_x, scale_y, shift_x, shift_y, x_off, y_off, invert, userdata);
STBTT_free(winding_lengths, userdata);
STBTT_free(windings, userdata);
}
}
STBTT_DEF void stbtt_FreeBitmap(unsigned char *bitmap, void *userdata)
{
STBTT_free(bitmap, userdata);
}
STBTT_DEF unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int glyph, int *width, int *height, int *xoff, int *yoff)
{
int ix0,iy0,ix1,iy1;
stbtt__bitmap gbm;
stbtt_vertex *vertices;
int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
if (scale_x == 0) scale_x = scale_y;
if (scale_y == 0) {
if (scale_x == 0) {
STBTT_free(vertices, info->userdata);
return NULL;
}
scale_y = scale_x;
}
stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x, shift_y, &ix0,&iy0,&ix1,&iy1);
// now we get the size
gbm.w = (ix1 - ix0);
gbm.h = (iy1 - iy0);
gbm.pixels = NULL; // in case we error
if (width ) *width = gbm.w;
if (height) *height = gbm.h;
if (xoff ) *xoff = ix0;
if (yoff ) *yoff = iy0;
if (gbm.w && gbm.h) {
gbm.pixels = (unsigned char *) STBTT_malloc(gbm.w * gbm.h, info->userdata);
if (gbm.pixels) {
gbm.stride = gbm.w;
stbtt_Rasterize(&gbm, 0.35f, vertices, num_verts, scale_x, scale_y, shift_x, shift_y, ix0, iy0, 1, info->userdata);
}
}
STBTT_free(vertices, info->userdata);
return gbm.pixels;
}
STBTT_DEF unsigned char *stbtt_GetGlyphBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int glyph, int *width, int *height, int *xoff, int *yoff)
{
return stbtt_GetGlyphBitmapSubpixel(info, scale_x, scale_y, 0.0f, 0.0f, glyph, width, height, xoff, yoff);
}
STBTT_DEF void stbtt_MakeGlyphBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int glyph)
{
int ix0,iy0;
stbtt_vertex *vertices;
int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
stbtt__bitmap gbm;
stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x, shift_y, &ix0,&iy0,0,0);
gbm.pixels = output;
gbm.w = out_w;
gbm.h = out_h;
gbm.stride = out_stride;
if (gbm.w && gbm.h)
stbtt_Rasterize(&gbm, 0.35f, vertices, num_verts, scale_x, scale_y, shift_x, shift_y, ix0,iy0, 1, info->userdata);
STBTT_free(vertices, info->userdata);
}
STBTT_DEF void stbtt_MakeGlyphBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int glyph)
{
stbtt_MakeGlyphBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, 0.0f,0.0f, glyph);
}
STBTT_DEF unsigned char *stbtt_GetCodepointBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
{
return stbtt_GetGlyphBitmapSubpixel(info, scale_x, scale_y,shift_x,shift_y, stbtt_FindGlyphIndex(info,codepoint), width,height,xoff,yoff);
}
STBTT_DEF void stbtt_MakeCodepointBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int oversample_x, int oversample_y, float *sub_x, float *sub_y, int codepoint)
{
stbtt_MakeGlyphBitmapSubpixelPrefilter(info, output, out_w, out_h, out_stride, scale_x, scale_y, shift_x, shift_y, oversample_x, oversample_y, sub_x, sub_y, stbtt_FindGlyphIndex(info,codepoint));
}
STBTT_DEF void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint)
{
stbtt_MakeGlyphBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, shift_x, shift_y, stbtt_FindGlyphIndex(info,codepoint));
}
STBTT_DEF unsigned char *stbtt_GetCodepointBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
{
return stbtt_GetCodepointBitmapSubpixel(info, scale_x, scale_y, 0.0f,0.0f, codepoint, width,height,xoff,yoff);
}
STBTT_DEF void stbtt_MakeCodepointBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int codepoint)
{
stbtt_MakeCodepointBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, 0.0f,0.0f, codepoint);
}
//////////////////////////////////////////////////////////////////////////////
//
// bitmap baking
//
// This is SUPER-CRAPPY packing to keep source code small
static int stbtt_BakeFontBitmap_internal(unsigned char *data, int offset, // font location (use offset=0 for plain .ttf)
float pixel_height, // height of font in pixels
unsigned char *pixels, int pw, int ph, // bitmap to be filled in
int first_char, int num_chars, // characters to bake
stbtt_bakedchar *chardata)
{
float scale;
int x,y,bottom_y, i;
stbtt_fontinfo f;
f.userdata = NULL;
if (!stbtt_InitFont(&f, data, offset))
return -1;
STBTT_memset(pixels, 0, pw*ph); // background of 0 around pixels
x=y=1;
bottom_y = 1;
scale = stbtt_ScaleForPixelHeight(&f, pixel_height);
for (i=0; i < num_chars; ++i) {
int advance, lsb, x0,y0,x1,y1,gw,gh;
int g = stbtt_FindGlyphIndex(&f, first_char + i);
stbtt_GetGlyphHMetrics(&f, g, &advance, &lsb);
stbtt_GetGlyphBitmapBox(&f, g, scale,scale, &x0,&y0,&x1,&y1);
gw = x1-x0;
gh = y1-y0;
if (x + gw + 1 >= pw)
y = bottom_y, x = 1; // advance to next row
if (y + gh + 1 >= ph) // check if it fits vertically AFTER potentially moving to next row
return -i;
STBTT_assert(x+gw < pw);
STBTT_assert(y+gh < ph);
stbtt_MakeGlyphBitmap(&f, pixels+x+y*pw, gw,gh,pw, scale,scale, g);
chardata[i].x0 = (stbtt_int16) x;
chardata[i].y0 = (stbtt_int16) y;
chardata[i].x1 = (stbtt_int16) (x + gw);
chardata[i].y1 = (stbtt_int16) (y + gh);
chardata[i].xadvance = scale * advance;
chardata[i].xoff = (float) x0;
chardata[i].yoff = (float) y0;
x = x + gw + 1;
if (y+gh+1 > bottom_y)
bottom_y = y+gh+1;
}
return bottom_y;
}
STBTT_DEF void stbtt_GetBakedQuad(const stbtt_bakedchar *chardata, int pw, int ph, int char_index, float *xpos, float *ypos, stbtt_aligned_quad *q, int opengl_fillrule)
{
float d3d_bias = opengl_fillrule ? 0 : -0.5f;
float ipw = 1.0f / pw, iph = 1.0f / ph;
const stbtt_bakedchar *b = chardata + char_index;
int round_x = STBTT_ifloor((*xpos + b->xoff) + 0.5f);
int round_y = STBTT_ifloor((*ypos + b->yoff) + 0.5f);
q->x0 = round_x + d3d_bias;
q->y0 = round_y + d3d_bias;
q->x1 = round_x + b->x1 - b->x0 + d3d_bias;
q->y1 = round_y + b->y1 - b->y0 + d3d_bias;
q->s0 = b->x0 * ipw;
q->t0 = b->y0 * iph;
q->s1 = b->x1 * ipw;
q->t1 = b->y1 * iph;
*xpos += b->xadvance;
}
//////////////////////////////////////////////////////////////////////////////
//
// rectangle packing replacement routines if you don't have stb_rect_pack.h
//
#ifndef STB_RECT_PACK_VERSION
typedef int stbrp_coord;
////////////////////////////////////////////////////////////////////////////////////
// //
// //
// COMPILER WARNING ?!?!? //
// //
// //
// if you get a compile warning due to these symbols being defined more than //
// once, move #include "stb_rect_pack.h" before #include "stb_truetype.h" //
// //
////////////////////////////////////////////////////////////////////////////////////
typedef struct
{
int width,height;
int x,y,bottom_y;
} stbrp_context;
typedef struct
{
unsigned char x;
} stbrp_node;
struct stbrp_rect
{
stbrp_coord x,y;
int id,w,h,was_packed;
};
static void stbrp_init_target(stbrp_context *con, int pw, int ph, stbrp_node *nodes, int num_nodes)
{
con->width = pw;
con->height = ph;
con->x = 0;
con->y = 0;
con->bottom_y = 0;
STBTT__NOTUSED(nodes);
STBTT__NOTUSED(num_nodes);
}
static void stbrp_pack_rects(stbrp_context *con, stbrp_rect *rects, int num_rects)
{
int i;
for (i=0; i < num_rects; ++i) {
if (con->x + rects[i].w > con->width) {
con->x = 0;
con->y = con->bottom_y;
}
if (con->y + rects[i].h > con->height)
break;
rects[i].x = con->x;
rects[i].y = con->y;
rects[i].was_packed = 1;
con->x += rects[i].w;
if (con->y + rects[i].h > con->bottom_y)
con->bottom_y = con->y + rects[i].h;
}
for ( ; i < num_rects; ++i)
rects[i].was_packed = 0;
}
#endif
//////////////////////////////////////////////////////////////////////////////
//
// bitmap baking
//
// This is SUPER-AWESOME (tm Ryan Gordon) packing using stb_rect_pack.h. If
// stb_rect_pack.h isn't available, it uses the BakeFontBitmap strategy.
STBTT_DEF int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int pw, int ph, int stride_in_bytes, int padding, void *alloc_context)
{
stbrp_context *context = (stbrp_context *) STBTT_malloc(sizeof(*context) ,alloc_context);
int num_nodes = pw - padding;
stbrp_node *nodes = (stbrp_node *) STBTT_malloc(sizeof(*nodes ) * num_nodes,alloc_context);
if (context == NULL || nodes == NULL) {
if (context != NULL) STBTT_free(context, alloc_context);
if (nodes != NULL) STBTT_free(nodes , alloc_context);
return 0;
}
spc->user_allocator_context = alloc_context;
spc->width = pw;
spc->height = ph;
spc->pixels = pixels;
spc->pack_info = context;
spc->nodes = nodes;
spc->padding = padding;
spc->stride_in_bytes = stride_in_bytes != 0 ? stride_in_bytes : pw;
spc->h_oversample = 1;
spc->v_oversample = 1;
spc->skip_missing = 0;
stbrp_init_target(context, pw-padding, ph-padding, nodes, num_nodes);
if (pixels)
STBTT_memset(pixels, 0, pw*ph); // background of 0 around pixels
return 1;
}
STBTT_DEF void stbtt_PackEnd (stbtt_pack_context *spc)
{
STBTT_free(spc->nodes , spc->user_allocator_context);
STBTT_free(spc->pack_info, spc->user_allocator_context);
}
STBTT_DEF void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample)
{
STBTT_assert(h_oversample <= STBTT_MAX_OVERSAMPLE);
STBTT_assert(v_oversample <= STBTT_MAX_OVERSAMPLE);
if (h_oversample <= STBTT_MAX_OVERSAMPLE)
spc->h_oversample = h_oversample;
if (v_oversample <= STBTT_MAX_OVERSAMPLE)
spc->v_oversample = v_oversample;
}
STBTT_DEF void stbtt_PackSetSkipMissingCodepoints(stbtt_pack_context *spc, int skip)
{
spc->skip_missing = skip;
}
#define STBTT__OVER_MASK (STBTT_MAX_OVERSAMPLE-1)
static void stbtt__h_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
{
unsigned char buffer[STBTT_MAX_OVERSAMPLE];
int safe_w = w - kernel_width;
int j;
STBTT_memset(buffer, 0, STBTT_MAX_OVERSAMPLE); // suppress bogus warning from VS2013 -analyze
for (j=0; j < h; ++j) {
int i;
unsigned int total;
STBTT_memset(buffer, 0, kernel_width);
total = 0;
// make kernel_width a constant in common cases so compiler can optimize out the divide
switch (kernel_width) {
case 2:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = (unsigned char) (total / 2);
}
break;
case 3:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = (unsigned char) (total / 3);
}
break;
case 4:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = (unsigned char) (total / 4);
}
break;
case 5:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = (unsigned char) (total / 5);
}
break;
default:
for (i=0; i <= safe_w; ++i) {
total += pixels[i] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
pixels[i] = (unsigned char) (total / kernel_width);
}
break;
}
for (; i < w; ++i) {
STBTT_assert(pixels[i] == 0);
total -= buffer[i & STBTT__OVER_MASK];
pixels[i] = (unsigned char) (total / kernel_width);
}
pixels += stride_in_bytes;
}
}
static void stbtt__v_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
{
unsigned char buffer[STBTT_MAX_OVERSAMPLE];
int safe_h = h - kernel_width;
int j;
STBTT_memset(buffer, 0, STBTT_MAX_OVERSAMPLE); // suppress bogus warning from VS2013 -analyze
for (j=0; j < w; ++j) {
int i;
unsigned int total;
STBTT_memset(buffer, 0, kernel_width);
total = 0;
// make kernel_width a constant in common cases so compiler can optimize out the divide
switch (kernel_width) {
case 2:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = (unsigned char) (total / 2);
}
break;
case 3:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = (unsigned char) (total / 3);
}
break;
case 4:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = (unsigned char) (total / 4);
}
break;
case 5:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = (unsigned char) (total / 5);
}
break;
default:
for (i=0; i <= safe_h; ++i) {
total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
pixels[i*stride_in_bytes] = (unsigned char) (total / kernel_width);
}
break;
}
for (; i < h; ++i) {
STBTT_assert(pixels[i*stride_in_bytes] == 0);
total -= buffer[i & STBTT__OVER_MASK];
pixels[i*stride_in_bytes] = (unsigned char) (total / kernel_width);
}
pixels += 1;
}
}
static float stbtt__oversample_shift(int oversample)
{
if (!oversample)
return 0.0f;
// The prefilter is a box filter of width "oversample",
// which shifts phase by (oversample - 1)/2 pixels in
// oversampled space. We want to shift in the opposite
// direction to counter this.
return (float)-(oversample - 1) / (2.0f * (float)oversample);
}
// rects array must be big enough to accommodate all characters in the given ranges
STBTT_DEF int stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
{
int i,j,k;
int missing_glyph_added = 0;
k=0;
for (i=0; i < num_ranges; ++i) {
float fh = ranges[i].font_size;
float scale = fh > 0 ? stbtt_ScaleForPixelHeight(info, fh) : stbtt_ScaleForMappingEmToPixels(info, -fh);
ranges[i].h_oversample = (unsigned char) spc->h_oversample;
ranges[i].v_oversample = (unsigned char) spc->v_oversample;
for (j=0; j < ranges[i].num_chars; ++j) {
int x0,y0,x1,y1;
int codepoint = ranges[i].array_of_unicode_codepoints == NULL ? ranges[i].first_unicode_codepoint_in_range + j : ranges[i].array_of_unicode_codepoints[j];
int glyph = stbtt_FindGlyphIndex(info, codepoint);
if (glyph == 0 && (spc->skip_missing || missing_glyph_added)) {
rects[k].w = rects[k].h = 0;
} else {
stbtt_GetGlyphBitmapBoxSubpixel(info,glyph,
scale * spc->h_oversample,
scale * spc->v_oversample,
0,0,
&x0,&y0,&x1,&y1);
rects[k].w = (stbrp_coord) (x1-x0 + spc->padding + spc->h_oversample-1);
rects[k].h = (stbrp_coord) (y1-y0 + spc->padding + spc->v_oversample-1);
if (glyph == 0)
missing_glyph_added = 1;
}
++k;
}
}
return k;
}
STBTT_DEF void stbtt_MakeGlyphBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int prefilter_x, int prefilter_y, float *sub_x, float *sub_y, int glyph)
{
stbtt_MakeGlyphBitmapSubpixel(info,
output,
out_w - (prefilter_x - 1),
out_h - (prefilter_y - 1),
out_stride,
scale_x,
scale_y,
shift_x,
shift_y,
glyph);
if (prefilter_x > 1)
stbtt__h_prefilter(output, out_w, out_h, out_stride, prefilter_x);
if (prefilter_y > 1)
stbtt__v_prefilter(output, out_w, out_h, out_stride, prefilter_y);
*sub_x = stbtt__oversample_shift(prefilter_x);
*sub_y = stbtt__oversample_shift(prefilter_y);
}
// rects array must be big enough to accommodate all characters in the given ranges
STBTT_DEF int stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
{
int i,j,k, missing_glyph = -1, return_value = 1;
// save current values
int old_h_over = spc->h_oversample;
int old_v_over = spc->v_oversample;
k = 0;
for (i=0; i < num_ranges; ++i) {
float fh = ranges[i].font_size;
float scale = fh > 0 ? stbtt_ScaleForPixelHeight(info, fh) : stbtt_ScaleForMappingEmToPixels(info, -fh);
float recip_h,recip_v,sub_x,sub_y;
spc->h_oversample = ranges[i].h_oversample;
spc->v_oversample = ranges[i].v_oversample;
recip_h = 1.0f / spc->h_oversample;
recip_v = 1.0f / spc->v_oversample;
sub_x = stbtt__oversample_shift(spc->h_oversample);
sub_y = stbtt__oversample_shift(spc->v_oversample);
for (j=0; j < ranges[i].num_chars; ++j) {
stbrp_rect *r = &rects[k];
if (r->was_packed && r->w != 0 && r->h != 0) {
stbtt_packedchar *bc = &ranges[i].chardata_for_range[j];
int advance, lsb, x0,y0,x1,y1;
int codepoint = ranges[i].array_of_unicode_codepoints == NULL ? ranges[i].first_unicode_codepoint_in_range + j : ranges[i].array_of_unicode_codepoints[j];
int glyph = stbtt_FindGlyphIndex(info, codepoint);
stbrp_coord pad = (stbrp_coord) spc->padding;
// pad on left and top
r->x += pad;
r->y += pad;
r->w -= pad;
r->h -= pad;
stbtt_GetGlyphHMetrics(info, glyph, &advance, &lsb);
stbtt_GetGlyphBitmapBox(info, glyph,
scale * spc->h_oversample,
scale * spc->v_oversample,
&x0,&y0,&x1,&y1);
stbtt_MakeGlyphBitmapSubpixel(info,
spc->pixels + r->x + r->y*spc->stride_in_bytes,
r->w - spc->h_oversample+1,
r->h - spc->v_oversample+1,
spc->stride_in_bytes,
scale * spc->h_oversample,
scale * spc->v_oversample,
0,0,
glyph);
if (spc->h_oversample > 1)
stbtt__h_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
r->w, r->h, spc->stride_in_bytes,
spc->h_oversample);
if (spc->v_oversample > 1)
stbtt__v_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
r->w, r->h, spc->stride_in_bytes,
spc->v_oversample);
bc->x0 = (stbtt_int16) r->x;
bc->y0 = (stbtt_int16) r->y;
bc->x1 = (stbtt_int16) (r->x + r->w);
bc->y1 = (stbtt_int16) (r->y + r->h);
bc->xadvance = scale * advance;
bc->xoff = (float) x0 * recip_h + sub_x;
bc->yoff = (float) y0 * recip_v + sub_y;
bc->xoff2 = (x0 + r->w) * recip_h + sub_x;
bc->yoff2 = (y0 + r->h) * recip_v + sub_y;
if (glyph == 0)
missing_glyph = j;
} else if (spc->skip_missing) {
return_value = 0;
} else if (r->was_packed && r->w == 0 && r->h == 0 && missing_glyph >= 0) {
ranges[i].chardata_for_range[j] = ranges[i].chardata_for_range[missing_glyph];
} else {
return_value = 0; // if any fail, report failure
}
++k;
}
}
// restore original values
spc->h_oversample = old_h_over;
spc->v_oversample = old_v_over;
return return_value;
}
STBTT_DEF void stbtt_PackFontRangesPackRects(stbtt_pack_context *spc, stbrp_rect *rects, int num_rects)
{
stbrp_pack_rects((stbrp_context *) spc->pack_info, rects, num_rects);
}
STBTT_DEF int stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges)
{
stbtt_fontinfo info;
int i,j,n, return_value = 1;
//stbrp_context *context = (stbrp_context *) spc->pack_info;
stbrp_rect *rects;
// flag all characters as NOT packed
for (i=0; i < num_ranges; ++i)
for (j=0; j < ranges[i].num_chars; ++j)
ranges[i].chardata_for_range[j].x0 =
ranges[i].chardata_for_range[j].y0 =
ranges[i].chardata_for_range[j].x1 =
ranges[i].chardata_for_range[j].y1 = 0;
n = 0;
for (i=0; i < num_ranges; ++i)
n += ranges[i].num_chars;
rects = (stbrp_rect *) STBTT_malloc(sizeof(*rects) * n, spc->user_allocator_context);
if (rects == NULL)
return 0;
info.userdata = spc->user_allocator_context;
stbtt_InitFont(&info, fontdata, stbtt_GetFontOffsetForIndex(fontdata,font_index));
n = stbtt_PackFontRangesGatherRects(spc, &info, ranges, num_ranges, rects);
stbtt_PackFontRangesPackRects(spc, rects, n);
return_value = stbtt_PackFontRangesRenderIntoRects(spc, &info, ranges, num_ranges, rects);
STBTT_free(rects, spc->user_allocator_context);
return return_value;
}
STBTT_DEF int stbtt_PackFontRange(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, float font_size,
int first_unicode_codepoint_in_range, int num_chars_in_range, stbtt_packedchar *chardata_for_range)
{
stbtt_pack_range range;
range.first_unicode_codepoint_in_range = first_unicode_codepoint_in_range;
range.array_of_unicode_codepoints = NULL;
range.num_chars = num_chars_in_range;
range.chardata_for_range = chardata_for_range;
range.font_size = font_size;
return stbtt_PackFontRanges(spc, fontdata, font_index, &range, 1);
}
STBTT_DEF void stbtt_GetScaledFontVMetrics(const unsigned char *fontdata, int index, float size, float *ascent, float *descent, float *lineGap)
{
int i_ascent, i_descent, i_lineGap;
float scale;
stbtt_fontinfo info;
stbtt_InitFont(&info, fontdata, stbtt_GetFontOffsetForIndex(fontdata, index));
scale = size > 0 ? stbtt_ScaleForPixelHeight(&info, size) : stbtt_ScaleForMappingEmToPixels(&info, -size);
stbtt_GetFontVMetrics(&info, &i_ascent, &i_descent, &i_lineGap);
*ascent = (float) i_ascent * scale;
*descent = (float) i_descent * scale;
*lineGap = (float) i_lineGap * scale;
}
STBTT_DEF void stbtt_GetPackedQuad(const stbtt_packedchar *chardata, int pw, int ph, int char_index, float *xpos, float *ypos, stbtt_aligned_quad *q, int align_to_integer)
{
float ipw = 1.0f / pw, iph = 1.0f / ph;
const stbtt_packedchar *b = chardata + char_index;
if (align_to_integer) {
float x = (float) STBTT_ifloor((*xpos + b->xoff) + 0.5f);
float y = (float) STBTT_ifloor((*ypos + b->yoff) + 0.5f);
q->x0 = x;
q->y0 = y;
q->x1 = x + b->xoff2 - b->xoff;
q->y1 = y + b->yoff2 - b->yoff;
} else {
q->x0 = *xpos + b->xoff;
q->y0 = *ypos + b->yoff;
q->x1 = *xpos + b->xoff2;
q->y1 = *ypos + b->yoff2;
}
q->s0 = b->x0 * ipw;
q->t0 = b->y0 * iph;
q->s1 = b->x1 * ipw;
q->t1 = b->y1 * iph;
*xpos += b->xadvance;
}
//////////////////////////////////////////////////////////////////////////////
//
// sdf computation
//
#define STBTT_min(a,b) ((a) < (b) ? (a) : (b))
#define STBTT_max(a,b) ((a) < (b) ? (b) : (a))
static int stbtt__ray_intersect_bezier(float orig[2], float ray[2], float q0[2], float q1[2], float q2[2], float hits[2][2])
{
float q0perp = q0[1]*ray[0] - q0[0]*ray[1];
float q1perp = q1[1]*ray[0] - q1[0]*ray[1];
float q2perp = q2[1]*ray[0] - q2[0]*ray[1];
float roperp = orig[1]*ray[0] - orig[0]*ray[1];
float a = q0perp - 2*q1perp + q2perp;
float b = q1perp - q0perp;
float c = q0perp - roperp;
float s0 = 0., s1 = 0.;
int num_s = 0;
if (a != 0.0) {
float discr = b*b - a*c;
if (discr > 0.0) {
float rcpna = -1 / a;
float d = (float) STBTT_sqrt(discr);
s0 = (b+d) * rcpna;
s1 = (b-d) * rcpna;
if (s0 >= 0.0 && s0 <= 1.0)
num_s = 1;
if (d > 0.0 && s1 >= 0.0 && s1 <= 1.0) {
if (num_s == 0) s0 = s1;
++num_s;
}
}
} else {
// 2*b*s + c = 0
// s = -c / (2*b)
s0 = c / (-2 * b);
if (s0 >= 0.0 && s0 <= 1.0)
num_s = 1;
}
if (num_s == 0)
return 0;
else {
float rcp_len2 = 1 / (ray[0]*ray[0] + ray[1]*ray[1]);
float rayn_x = ray[0] * rcp_len2, rayn_y = ray[1] * rcp_len2;
float q0d = q0[0]*rayn_x + q0[1]*rayn_y;
float q1d = q1[0]*rayn_x + q1[1]*rayn_y;
float q2d = q2[0]*rayn_x + q2[1]*rayn_y;
float rod = orig[0]*rayn_x + orig[1]*rayn_y;
float q10d = q1d - q0d;
float q20d = q2d - q0d;
float q0rd = q0d - rod;
hits[0][0] = q0rd + s0*(2.0f - 2.0f*s0)*q10d + s0*s0*q20d;
hits[0][1] = a*s0+b;
if (num_s > 1) {
hits[1][0] = q0rd + s1*(2.0f - 2.0f*s1)*q10d + s1*s1*q20d;
hits[1][1] = a*s1+b;
return 2;
} else {
return 1;
}
}
}
static int equal(float *a, float *b)
{
return (a[0] == b[0] && a[1] == b[1]);
}
static int stbtt__compute_crossings_x(float x, float y, int nverts, stbtt_vertex *verts)
{
int i;
float orig[2], ray[2] = { 1, 0 };
float y_frac;
int winding = 0;
orig[0] = x;
orig[1] = y;
// make sure y never passes through a vertex of the shape
y_frac = (float) STBTT_fmod(y, 1.0f);
if (y_frac < 0.01f)
y += 0.01f;
else if (y_frac > 0.99f)
y -= 0.01f;
orig[1] = y;
// test a ray from (-infinity,y) to (x,y)
for (i=0; i < nverts; ++i) {
if (verts[i].type == STBTT_vline) {
int x0 = (int) verts[i-1].x, y0 = (int) verts[i-1].y;
int x1 = (int) verts[i ].x, y1 = (int) verts[i ].y;
if (y > STBTT_min(y0,y1) && y < STBTT_max(y0,y1) && x > STBTT_min(x0,x1)) {
float x_inter = (y - y0) / (y1 - y0) * (x1-x0) + x0;
if (x_inter < x)
winding += (y0 < y1) ? 1 : -1;
}
}
if (verts[i].type == STBTT_vcurve) {
int x0 = (int) verts[i-1].x , y0 = (int) verts[i-1].y ;
int x1 = (int) verts[i ].cx, y1 = (int) verts[i ].cy;
int x2 = (int) verts[i ].x , y2 = (int) verts[i ].y ;
int ax = STBTT_min(x0,STBTT_min(x1,x2)), ay = STBTT_min(y0,STBTT_min(y1,y2));
int by = STBTT_max(y0,STBTT_max(y1,y2));
if (y > ay && y < by && x > ax) {
float q0[2],q1[2],q2[2];
float hits[2][2];
q0[0] = (float)x0;
q0[1] = (float)y0;
q1[0] = (float)x1;
q1[1] = (float)y1;
q2[0] = (float)x2;
q2[1] = (float)y2;
if (equal(q0,q1) || equal(q1,q2)) {
x0 = (int)verts[i-1].x;
y0 = (int)verts[i-1].y;
x1 = (int)verts[i ].x;
y1 = (int)verts[i ].y;
if (y > STBTT_min(y0,y1) && y < STBTT_max(y0,y1) && x > STBTT_min(x0,x1)) {
float x_inter = (y - y0) / (y1 - y0) * (x1-x0) + x0;
if (x_inter < x)
winding += (y0 < y1) ? 1 : -1;
}
} else {
int num_hits = stbtt__ray_intersect_bezier(orig, ray, q0, q1, q2, hits);
if (num_hits >= 1)
if (hits[0][0] < 0)
winding += (hits[0][1] < 0 ? -1 : 1);
if (num_hits >= 2)
if (hits[1][0] < 0)
winding += (hits[1][1] < 0 ? -1 : 1);
}
}
}
}
return winding;
}
static float stbtt__cuberoot( float x )
{
if (x<0)
return -(float) STBTT_pow(-x,1.0f/3.0f);
else
return (float) STBTT_pow( x,1.0f/3.0f);
}
// x^3 + c*x^2 + b*x + a = 0
static int stbtt__solve_cubic(float a, float b, float c, float* r)
{
float s = -a / 3;
float p = b - a*a / 3;
float q = a * (2*a*a - 9*b) / 27 + c;
float p3 = p*p*p;
float d = q*q + 4*p3 / 27;
if (d >= 0) {
float z = (float) STBTT_sqrt(d);
float u = (-q + z) / 2;
float v = (-q - z) / 2;
u = stbtt__cuberoot(u);
v = stbtt__cuberoot(v);
r[0] = s + u + v;
return 1;
} else {
float u = (float) STBTT_sqrt(-p/3);
float v = (float) STBTT_acos(-STBTT_sqrt(-27/p3) * q / 2) / 3; // p3 must be negative, since d is negative
float m = (float) STBTT_cos(v);
float n = (float) STBTT_cos(v-3.141592/2)*1.732050808f;
r[0] = s + u * 2 * m;
r[1] = s - u * (m + n);
r[2] = s - u * (m - n);
//STBTT_assert( STBTT_fabs(((r[0]+a)*r[0]+b)*r[0]+c) < 0.05f); // these asserts may not be safe at all scales, though they're in bezier t parameter units so maybe?
//STBTT_assert( STBTT_fabs(((r[1]+a)*r[1]+b)*r[1]+c) < 0.05f);
//STBTT_assert( STBTT_fabs(((r[2]+a)*r[2]+b)*r[2]+c) < 0.05f);
return 3;
}
}
STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float scale, int glyph, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff)
{
float scale_x = scale, scale_y = scale;
int ix0,iy0,ix1,iy1;
int w,h;
unsigned char *data;
if (scale == 0) return NULL;
stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale, scale, 0.0f,0.0f, &ix0,&iy0,&ix1,&iy1);
// if empty, return NULL
if (ix0 == ix1 || iy0 == iy1)
return NULL;
ix0 -= padding;
iy0 -= padding;
ix1 += padding;
iy1 += padding;
w = (ix1 - ix0);
h = (iy1 - iy0);
if (width ) *width = w;
if (height) *height = h;
if (xoff ) *xoff = ix0;
if (yoff ) *yoff = iy0;
// invert for y-downwards bitmaps
scale_y = -scale_y;
{
int x,y,i,j;
float *precompute;
stbtt_vertex *verts;
int num_verts = stbtt_GetGlyphShape(info, glyph, &verts);
data = (unsigned char *) STBTT_malloc(w * h, info->userdata);
precompute = (float *) STBTT_malloc(num_verts * sizeof(float), info->userdata);
for (i=0,j=num_verts-1; i < num_verts; j=i++) {
if (verts[i].type == STBTT_vline) {
float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y;
float x1 = verts[j].x*scale_x, y1 = verts[j].y*scale_y;
float dist = (float) STBTT_sqrt((x1-x0)*(x1-x0) + (y1-y0)*(y1-y0));
precompute[i] = (dist == 0) ? 0.0f : 1.0f / dist;
} else if (verts[i].type == STBTT_vcurve) {
float x2 = verts[j].x *scale_x, y2 = verts[j].y *scale_y;
float x1 = verts[i].cx*scale_x, y1 = verts[i].cy*scale_y;
float x0 = verts[i].x *scale_x, y0 = verts[i].y *scale_y;
float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2;
float len2 = bx*bx + by*by;
if (len2 != 0.0f)
precompute[i] = 1.0f / (bx*bx + by*by);
else
precompute[i] = 0.0f;
} else
precompute[i] = 0.0f;
}
for (y=iy0; y < iy1; ++y) {
for (x=ix0; x < ix1; ++x) {
float val;
float min_dist = 999999.0f;
float sx = (float) x + 0.5f;
float sy = (float) y + 0.5f;
float x_gspace = (sx / scale_x);
float y_gspace = (sy / scale_y);
int winding = stbtt__compute_crossings_x(x_gspace, y_gspace, num_verts, verts); // @OPTIMIZE: this could just be a rasterization, but needs to be line vs. non-tesselated curves so a new path
for (i=0; i < num_verts; ++i) {
float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y;
// check against every point here rather than inside line/curve primitives -- @TODO: wrong if multiple 'moves' in a row produce a garbage point, and given culling, probably more efficient to do within line/curve
float dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
if (dist2 < min_dist*min_dist)
min_dist = (float) STBTT_sqrt(dist2);
if (verts[i].type == STBTT_vline) {
float x1 = verts[i-1].x*scale_x, y1 = verts[i-1].y*scale_y;
// coarse culling against bbox
//if (sx > STBTT_min(x0,x1)-min_dist && sx < STBTT_max(x0,x1)+min_dist &&
// sy > STBTT_min(y0,y1)-min_dist && sy < STBTT_max(y0,y1)+min_dist)
float dist = (float) STBTT_fabs((x1-x0)*(y0-sy) - (y1-y0)*(x0-sx)) * precompute[i];
STBTT_assert(i != 0);
if (dist < min_dist) {
// check position along line
// x' = x0 + t*(x1-x0), y' = y0 + t*(y1-y0)
// minimize (x'-sx)*(x'-sx)+(y'-sy)*(y'-sy)
float dx = x1-x0, dy = y1-y0;
float px = x0-sx, py = y0-sy;
// minimize (px+t*dx)^2 + (py+t*dy)^2 = px*px + 2*px*dx*t + t^2*dx*dx + py*py + 2*py*dy*t + t^2*dy*dy
// derivative: 2*px*dx + 2*py*dy + (2*dx*dx+2*dy*dy)*t, set to 0 and solve
float t = -(px*dx + py*dy) / (dx*dx + dy*dy);
if (t >= 0.0f && t <= 1.0f)
min_dist = dist;
}
} else if (verts[i].type == STBTT_vcurve) {
float x2 = verts[i-1].x *scale_x, y2 = verts[i-1].y *scale_y;
float x1 = verts[i ].cx*scale_x, y1 = verts[i ].cy*scale_y;
float box_x0 = STBTT_min(STBTT_min(x0,x1),x2);
float box_y0 = STBTT_min(STBTT_min(y0,y1),y2);
float box_x1 = STBTT_max(STBTT_max(x0,x1),x2);
float box_y1 = STBTT_max(STBTT_max(y0,y1),y2);
// coarse culling against bbox to avoid computing cubic unnecessarily
if (sx > box_x0-min_dist && sx < box_x1+min_dist && sy > box_y0-min_dist && sy < box_y1+min_dist) {
int num=0;
float ax = x1-x0, ay = y1-y0;
float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2;
float mx = x0 - sx, my = y0 - sy;
float res[3],px,py,t,it;
float a_inv = precompute[i];
if (a_inv == 0.0) { // if a_inv is 0, it's 2nd degree so use quadratic formula
float a = 3*(ax*bx + ay*by);
float b = 2*(ax*ax + ay*ay) + (mx*bx+my*by);
float c = mx*ax+my*ay;
if (a == 0.0) { // if a is 0, it's linear
if (b != 0.0) {
res[num++] = -c/b;
}
} else {
float discriminant = b*b - 4*a*c;
if (discriminant < 0)
num = 0;
else {
float root = (float) STBTT_sqrt(discriminant);
res[0] = (-b - root)/(2*a);
res[1] = (-b + root)/(2*a);
num = 2; // don't bother distinguishing 1-solution case, as code below will still work
}
}
} else {
float b = 3*(ax*bx + ay*by) * a_inv; // could precompute this as it doesn't depend on sample point
float c = (2*(ax*ax + ay*ay) + (mx*bx+my*by)) * a_inv;
float d = (mx*ax+my*ay) * a_inv;
num = stbtt__solve_cubic(b, c, d, res);
}
if (num >= 1 && res[0] >= 0.0f && res[0] <= 1.0f) {
t = res[0], it = 1.0f - t;
px = it*it*x0 + 2*t*it*x1 + t*t*x2;
py = it*it*y0 + 2*t*it*y1 + t*t*y2;
dist2 = (px-sx)*(px-sx) + (py-sy)*(py-sy);
if (dist2 < min_dist * min_dist)
min_dist = (float) STBTT_sqrt(dist2);
}
if (num >= 2 && res[1] >= 0.0f && res[1] <= 1.0f) {
t = res[1], it = 1.0f - t;
px = it*it*x0 + 2*t*it*x1 + t*t*x2;
py = it*it*y0 + 2*t*it*y1 + t*t*y2;
dist2 = (px-sx)*(px-sx) + (py-sy)*(py-sy);
if (dist2 < min_dist * min_dist)
min_dist = (float) STBTT_sqrt(dist2);
}
if (num >= 3 && res[2] >= 0.0f && res[2] <= 1.0f) {
t = res[2], it = 1.0f - t;
px = it*it*x0 + 2*t*it*x1 + t*t*x2;
py = it*it*y0 + 2*t*it*y1 + t*t*y2;
dist2 = (px-sx)*(px-sx) + (py-sy)*(py-sy);
if (dist2 < min_dist * min_dist)
min_dist = (float) STBTT_sqrt(dist2);
}
}
}
}
if (winding == 0)
min_dist = -min_dist; // if outside the shape, value is negative
val = onedge_value + pixel_dist_scale * min_dist;
if (val < 0)
val = 0;
else if (val > 255)
val = 255;
data[(y-iy0)*w+(x-ix0)] = (unsigned char) val;
}
}
STBTT_free(precompute, info->userdata);
STBTT_free(verts, info->userdata);
}
return data;
}
STBTT_DEF unsigned char * stbtt_GetCodepointSDF(const stbtt_fontinfo *info, float scale, int codepoint, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff)
{
return stbtt_GetGlyphSDF(info, scale, stbtt_FindGlyphIndex(info, codepoint), padding, onedge_value, pixel_dist_scale, width, height, xoff, yoff);
}
STBTT_DEF void stbtt_FreeSDF(unsigned char *bitmap, void *userdata)
{
STBTT_free(bitmap, userdata);
}
//////////////////////////////////////////////////////////////////////////////
//
// font name matching -- recommended not to use this
//
// check if a utf8 string contains a prefix which is the utf16 string; if so return length of matching utf8 string
static stbtt_int32 stbtt__CompareUTF8toUTF16_bigendian_prefix(stbtt_uint8 *s1, stbtt_int32 len1, stbtt_uint8 *s2, stbtt_int32 len2)
{
stbtt_int32 i=0;
// convert utf16 to utf8 and compare the results while converting
while (len2) {
stbtt_uint16 ch = s2[0]*256 + s2[1];
if (ch < 0x80) {
if (i >= len1) return -1;
if (s1[i++] != ch) return -1;
} else if (ch < 0x800) {
if (i+1 >= len1) return -1;
if (s1[i++] != 0xc0 + (ch >> 6)) return -1;
if (s1[i++] != 0x80 + (ch & 0x3f)) return -1;
} else if (ch >= 0xd800 && ch < 0xdc00) {
stbtt_uint32 c;
stbtt_uint16 ch2 = s2[2]*256 + s2[3];
if (i+3 >= len1) return -1;
c = ((ch - 0xd800) << 10) + (ch2 - 0xdc00) + 0x10000;
if (s1[i++] != 0xf0 + (c >> 18)) return -1;
if (s1[i++] != 0x80 + ((c >> 12) & 0x3f)) return -1;
if (s1[i++] != 0x80 + ((c >> 6) & 0x3f)) return -1;
if (s1[i++] != 0x80 + ((c ) & 0x3f)) return -1;
s2 += 2; // plus another 2 below
len2 -= 2;
} else if (ch >= 0xdc00 && ch < 0xe000) {
return -1;
} else {
if (i+2 >= len1) return -1;
if (s1[i++] != 0xe0 + (ch >> 12)) return -1;
if (s1[i++] != 0x80 + ((ch >> 6) & 0x3f)) return -1;
if (s1[i++] != 0x80 + ((ch ) & 0x3f)) return -1;
}
s2 += 2;
len2 -= 2;
}
return i;
}
static int stbtt_CompareUTF8toUTF16_bigendian_internal(char *s1, int len1, char *s2, int len2)
{
return len1 == stbtt__CompareUTF8toUTF16_bigendian_prefix((stbtt_uint8*) s1, len1, (stbtt_uint8*) s2, len2);
}
// returns results in whatever encoding you request... but note that 2-byte encodings
// will be BIG-ENDIAN... use stbtt_CompareUTF8toUTF16_bigendian() to compare
STBTT_DEF const char *stbtt_GetFontNameString(const stbtt_fontinfo *font, int *length, int platformID, int encodingID, int languageID, int nameID)
{
stbtt_int32 i,count,stringOffset;
stbtt_uint8 *fc = font->data;
stbtt_uint32 offset = font->fontstart;
stbtt_uint32 nm = stbtt__find_table(fc, offset, "name");
if (!nm) return NULL;
count = ttUSHORT(fc+nm+2);
stringOffset = nm + ttUSHORT(fc+nm+4);
for (i=0; i < count; ++i) {
stbtt_uint32 loc = nm + 6 + 12 * i;
if (platformID == ttUSHORT(fc+loc+0) && encodingID == ttUSHORT(fc+loc+2)
&& languageID == ttUSHORT(fc+loc+4) && nameID == ttUSHORT(fc+loc+6)) {
*length = ttUSHORT(fc+loc+8);
return (const char *) (fc+stringOffset+ttUSHORT(fc+loc+10));
}
}
return NULL;
}
static int stbtt__matchpair(stbtt_uint8 *fc, stbtt_uint32 nm, stbtt_uint8 *name, stbtt_int32 nlen, stbtt_int32 target_id, stbtt_int32 next_id)
{
stbtt_int32 i;
stbtt_int32 count = ttUSHORT(fc+nm+2);
stbtt_int32 stringOffset = nm + ttUSHORT(fc+nm+4);
for (i=0; i < count; ++i) {
stbtt_uint32 loc = nm + 6 + 12 * i;
stbtt_int32 id = ttUSHORT(fc+loc+6);
if (id == target_id) {
// find the encoding
stbtt_int32 platform = ttUSHORT(fc+loc+0), encoding = ttUSHORT(fc+loc+2), language = ttUSHORT(fc+loc+4);
// is this a Unicode encoding?
if (platform == 0 || (platform == 3 && encoding == 1) || (platform == 3 && encoding == 10)) {
stbtt_int32 slen = ttUSHORT(fc+loc+8);
stbtt_int32 off = ttUSHORT(fc+loc+10);
// check if there's a prefix match
stbtt_int32 matchlen = stbtt__CompareUTF8toUTF16_bigendian_prefix(name, nlen, fc+stringOffset+off,slen);
if (matchlen >= 0) {
// check for target_id+1 immediately following, with same encoding & language
if (i+1 < count && ttUSHORT(fc+loc+12+6) == next_id && ttUSHORT(fc+loc+12) == platform && ttUSHORT(fc+loc+12+2) == encoding && ttUSHORT(fc+loc+12+4) == language) {
slen = ttUSHORT(fc+loc+12+8);
off = ttUSHORT(fc+loc+12+10);
if (slen == 0) {
if (matchlen == nlen)
return 1;
} else if (matchlen < nlen && name[matchlen] == ' ') {
++matchlen;
if (stbtt_CompareUTF8toUTF16_bigendian_internal((char*) (name+matchlen), nlen-matchlen, (char*)(fc+stringOffset+off),slen))
return 1;
}
} else {
// if nothing immediately following
if (matchlen == nlen)
return 1;
}
}
}
// @TODO handle other encodings
}
}
return 0;
}
static int stbtt__matches(stbtt_uint8 *fc, stbtt_uint32 offset, stbtt_uint8 *name, stbtt_int32 flags)
{
stbtt_int32 nlen = (stbtt_int32) STBTT_strlen((char *) name);
stbtt_uint32 nm,hd;
if (!stbtt__isfont(fc+offset)) return 0;
// check italics/bold/underline flags in macStyle...
if (flags) {
hd = stbtt__find_table(fc, offset, "head");
if ((ttUSHORT(fc+hd+44) & 7) != (flags & 7)) return 0;
}
nm = stbtt__find_table(fc, offset, "name");
if (!nm) return 0;
if (flags) {
// if we checked the macStyle flags, then just check the family and ignore the subfamily
if (stbtt__matchpair(fc, nm, name, nlen, 16, -1)) return 1;
if (stbtt__matchpair(fc, nm, name, nlen, 1, -1)) return 1;
if (stbtt__matchpair(fc, nm, name, nlen, 3, -1)) return 1;
} else {
if (stbtt__matchpair(fc, nm, name, nlen, 16, 17)) return 1;
if (stbtt__matchpair(fc, nm, name, nlen, 1, 2)) return 1;
if (stbtt__matchpair(fc, nm, name, nlen, 3, -1)) return 1;
}
return 0;
}
static int stbtt_FindMatchingFont_internal(unsigned char *font_collection, char *name_utf8, stbtt_int32 flags)
{
stbtt_int32 i;
for (i=0;;++i) {
stbtt_int32 off = stbtt_GetFontOffsetForIndex(font_collection, i);
if (off < 0) return off;
if (stbtt__matches((stbtt_uint8 *) font_collection, off, (stbtt_uint8*) name_utf8, flags))
return off;
}
}
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif
STBTT_DEF int stbtt_BakeFontBitmap(const unsigned char *data, int offset,
float pixel_height, unsigned char *pixels, int pw, int ph,
int first_char, int num_chars, stbtt_bakedchar *chardata)
{
return stbtt_BakeFontBitmap_internal((unsigned char *) data, offset, pixel_height, pixels, pw, ph, first_char, num_chars, chardata);
}
STBTT_DEF int stbtt_GetFontOffsetForIndex(const unsigned char *data, int index)
{
return stbtt_GetFontOffsetForIndex_internal((unsigned char *) data, index);
}
STBTT_DEF int stbtt_GetNumberOfFonts(const unsigned char *data)
{
return stbtt_GetNumberOfFonts_internal((unsigned char *) data);
}
STBTT_DEF int stbtt_InitFont(stbtt_fontinfo *info, const unsigned char *data, int offset)
{
return stbtt_InitFont_internal(info, (unsigned char *) data, offset);
}
STBTT_DEF int stbtt_FindMatchingFont(const unsigned char *fontdata, const char *name, int flags)
{
return stbtt_FindMatchingFont_internal((unsigned char *) fontdata, (char *) name, flags);
}
STBTT_DEF int stbtt_CompareUTF8toUTF16_bigendian(const char *s1, int len1, const char *s2, int len2)
{
return stbtt_CompareUTF8toUTF16_bigendian_internal((char *) s1, len1, (char *) s2, len2);
}
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic pop
#endif
#endif // STB_TRUETYPE_IMPLEMENTATION
// FULL VERSION HISTORY
//
// 1.19 (2018-02-11) OpenType GPOS kerning (horizontal only), STBTT_fmod
// 1.18 (2018-01-29) add missing function
// 1.17 (2017-07-23) make more arguments const; doc fix
// 1.16 (2017-07-12) SDF support
// 1.15 (2017-03-03) make more arguments const
// 1.14 (2017-01-16) num-fonts-in-TTC function
// 1.13 (2017-01-02) support OpenType fonts, certain Apple fonts
// 1.12 (2016-10-25) suppress warnings about casting away const with -Wcast-qual
// 1.11 (2016-04-02) fix unused-variable warning
// 1.10 (2016-04-02) allow user-defined fabs() replacement
// fix memory leak if fontsize=0.0
// fix warning from duplicate typedef
// 1.09 (2016-01-16) warning fix; avoid crash on outofmem; use alloc userdata for PackFontRanges
// 1.08 (2015-09-13) document stbtt_Rasterize(); fixes for vertical & horizontal edges
// 1.07 (2015-08-01) allow PackFontRanges to accept arrays of sparse codepoints;
// allow PackFontRanges to pack and render in separate phases;
// fix stbtt_GetFontOFfsetForIndex (never worked for non-0 input?);
// fixed an assert() bug in the new rasterizer
// replace assert() with STBTT_assert() in new rasterizer
// 1.06 (2015-07-14) performance improvements (~35% faster on x86 and x64 on test machine)
// also more precise AA rasterizer, except if shapes overlap
// remove need for STBTT_sort
// 1.05 (2015-04-15) fix misplaced definitions for STBTT_STATIC
// 1.04 (2015-04-15) typo in example
// 1.03 (2015-04-12) STBTT_STATIC, fix memory leak in new packing, various fixes
// 1.02 (2014-12-10) fix various warnings & compile issues w/ stb_rect_pack, C++
// 1.01 (2014-12-08) fix subpixel position when oversampling to exactly match
// non-oversampled; STBTT_POINT_SIZE for packed case only
// 1.00 (2014-12-06) add new PackBegin etc. API, w/ support for oversampling
// 0.99 (2014-09-18) fix multiple bugs with subpixel rendering (ryg)
// 0.9 (2014-08-07) support certain mac/iOS fonts without an MS platformID
// 0.8b (2014-07-07) fix a warning
// 0.8 (2014-05-25) fix a few more warnings
// 0.7 (2013-09-25) bugfix: subpixel glyph bug fixed in 0.5 had come back
// 0.6c (2012-07-24) improve documentation
// 0.6b (2012-07-20) fix a few more warnings
// 0.6 (2012-07-17) fix warnings; added stbtt_ScaleForMappingEmToPixels,
// stbtt_GetFontBoundingBox, stbtt_IsGlyphEmpty
// 0.5 (2011-12-09) bugfixes:
// subpixel glyph renderer computed wrong bounding box
// first vertex of shape can be off-curve (FreeSans)
// 0.4b (2011-12-03) fixed an error in the font baking example
// 0.4 (2011-12-01) kerning, subpixel rendering (tor)
// bugfixes for:
// codepoint-to-glyph conversion using table fmt=12
// codepoint-to-glyph conversion using table fmt=4
// stbtt_GetBakedQuad with non-square texture (Zer)
// updated Hello World! sample to use kerning and subpixel
// fixed some warnings
// 0.3 (2009-06-24) cmap fmt=12, compound shapes (MM)
// userdata, malloc-from-userdata, non-zero fill (stb)
// 0.2 (2009-03-11) Fix unsigned/signed char warnings
// 0.1 (2009-03-09) First public release
//
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain. We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors. We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/ | xfangfang/nanovg-gxm | 7 | A port of NanoVG to the gxm graphics API for the PSVita (vitasdk) | C | xfangfang | ||
Android_Project/ProxySDK/build.gradle | Gradle | // Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:4.0.1'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/proxydemo/build.gradle | Gradle | apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "cn.crossnat.proxydemo"
minSdkVersion 17
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
repositories {
flatDir {
dirs 'libs'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
compile project(':proxysdk')
}
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/proxydemo/src/androidTest/java/cn/crossnat/proxydemo/ExampleInstrumentedTest.java | Java | package cn.crossnat.proxydemo;
import android.content.Context;
import android.support.test.InstrumentationRegistry;
import android.support.test.runner.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.*;
/**
* Instrumented test, which will execute on an Android device.
*
* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
*/
@RunWith(AndroidJUnit4.class)
public class ExampleInstrumentedTest {
@Test
public void useAppContext() throws Exception {
// Context of the app under test.
Context appContext = InstrumentationRegistry.getTargetContext();
assertEquals("cn.crossnat.proxydemo", appContext.getPackageName());
}
}
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/proxydemo/src/main/java/cn/crossnat/proxydemo/ActivityAddBinder.java | Java | package cn.crossnat.proxydemo;
import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import cn.crossnat.proxysdk.ProxySDK;
import java.util.HashMap;
public class ActivityAddBinder extends Activity implements ProxySDK.ProxyBinderEvent {
public static final String NOTICE_ADDBINDER = "ActivityAddBinder.addBinder";
private ProxySDK.ProxyBinder binder;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_binder);
SharedPreferences userSettings= getSharedPreferences("setting", 0);
((TextView)findViewById(R.id.txt_dstuser)).setText(userSettings.getString("dstuser",""));
((TextView)findViewById(R.id.txt_dstport)).setText(userSettings.getString("dstport",""));
((TextView)findViewById(R.id.txt_localport)).setText(userSettings.getString("localport",""));
}
@Override
public void onAttachedToWindow() {
View view = getWindow().getDecorView();
WindowManager.LayoutParams lp = (WindowManager.LayoutParams) view.getLayoutParams();
lp.gravity = Gravity.FILL;
lp.height = lp.width = WindowManager.LayoutParams.MATCH_PARENT;
getWindowManager().updateViewLayout(view, lp);
}
public void onClick_cancel(View sender){
this.finish();
}
public void onClick_yes(View sender){
String dstuser = ((TextView)findViewById(R.id.txt_dstuser)).getText().toString();
String dstport = ((TextView)findViewById(R.id.txt_dstport)).getText().toString();
String localport = ((TextView)findViewById(R.id.txt_localport)).getText().toString();
if (dstuser.isEmpty() || dstport.isEmpty() || localport.isEmpty()){
Toast.makeText(this,"请输入完整信息!",Toast.LENGTH_SHORT).show();
return;
}
binder = new ProxySDK.ProxyBinder();
binder.SetDelegate(this);
if(-1 == binder.Bind(dstuser,Integer.parseInt(dstport),Integer.parseInt(localport),"127.0.0.1","0.0.0.0")){
binder.Release();
binder = null;
Toast.makeText(this,"绑定端口失败!",Toast.LENGTH_SHORT).show();
return;
}
setEnabled(null,false);
((Button)findViewById(R.id.bt_yes)).setText("绑定中...");
}
@Override
public void onBindResult(final int errCode, final String errMsg) {
this.runOnUiThread(new Runnable() {
@Override
public void run() {
setEnabled(null,true);
((Button)findViewById(R.id.bt_yes)).setText("确定");
if (errCode != 0 ){
Toast.makeText(ActivityAddBinder.this,"绑定失败,错误码:" + errCode + "," + errMsg,Toast.LENGTH_SHORT).show();
binder.Release();
binder = null;
return;
}
//成功
String dstuser = ((TextView)findViewById(R.id.txt_dstuser)).getText().toString();
String dstport = ((TextView)findViewById(R.id.txt_dstport)).getText().toString();
String localport = ((TextView)findViewById(R.id.txt_localport)).getText().toString();
SharedPreferences userSettings = getSharedPreferences("setting", 0);
SharedPreferences.Editor editor = userSettings.edit();
editor.putString("dstuser",dstuser);
editor.putString("dstport",dstport);
editor.putString("localport",localport);
editor.commit();
HashMap<String,Object> mapArgs = new HashMap<String, Object>();
mapArgs.put("dstuser",dstuser);
mapArgs.put("dstport",dstport);
mapArgs.put("localport",localport);
mapArgs.put("binder",binder);
NoticeCenter.Instance().PostNotice(NOTICE_ADDBINDER,mapArgs);
ActivityAddBinder.this.finish();
}
});
}
@Override
public void onRemoteSockErr(int errCode, String errMsg) {
}
private void setEnabled(ViewGroup viewGroup,boolean flag){
if(viewGroup == null){
viewGroup = findViewById(R.id.id_bindDialog);
}
for (int i = 0; i < viewGroup.getChildCount(); i++) {
View v = viewGroup.getChildAt(i);
if (v instanceof ViewGroup) {
if (v instanceof Spinner) {
Spinner spinner = (Spinner) v;
spinner.setClickable(flag);
spinner.setEnabled(flag);
} else if (v instanceof ListView) {
((ListView) v).setClickable(flag);
((ListView) v).setEnabled(flag);
} else {
setEnabled((ViewGroup) v,flag);
}
} else if (v instanceof EditText) {
((EditText) v).setEnabled(flag);
((EditText) v).setClickable(flag);
} else if (v instanceof Button) {
((Button) v).setEnabled(flag);
}
}
}
}
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/proxydemo/src/main/java/cn/crossnat/proxydemo/ActivityBinder.java | Java | package cn.crossnat.proxydemo;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import cn.crossnat.proxysdk.ProxySDK;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class ActivityBinder extends AppCompatActivity implements NoticeCenter.NoticeDelegate {
private ListView listViewBinder;
private List<HashMap<String,Object> > binderList = new ArrayList<HashMap<String,Object> >();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_binder);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayHomeAsUpEnabled(true);
}
NoticeCenter.Instance().AddDelegate(MainActivity.NOTICE_SHUTDOWN, this);
NoticeCenter.Instance().AddDelegate(ActivityAddBinder.NOTICE_ADDBINDER,this);
listViewBinder = (ListView) findViewById(R.id.listViewBinder);
listViewBinder.setAdapter(adapter);
getLastNonConfigurationInstance();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
Log.d(MainActivity.APP_TAG,"ActivityBinder.onConfigurationChanged " + newConfig.toString());
}
@Override
protected void onDestroy() {
super.onDestroy();
NoticeCenter.Instance().RemoveDelegate(this);
for (HashMap<String,Object> map:binderList) {
((ProxySDK.ProxyBinder)map.get("binder")).Release();
}
}
@Override
public void onRecvNotice(String noticeName, Object obj) {
if (MainActivity.NOTICE_SHUTDOWN.equals(noticeName)){
ActivityBinder.this.finish();
}else if(ActivityAddBinder.NOTICE_ADDBINDER.equals(noticeName)){
binderList.add((HashMap<String, Object>)obj);
adapter.notifyDataSetChanged();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
this.onBackPressed(); // back button
return true;
case R.id.add:
showAddDialog();
return true;
}
return super.onOptionsItemSelected(item);
}
private void showAddDialog(){
Intent intent=new Intent(this,ActivityAddBinder.class);
this.startActivity(intent);
}
@Override
public void onBackPressed() {
Log.d(MainActivity.APP_TAG,"ActivityBinder.onBackPressed");
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("提示");
builder.setMessage("确定退出登录？");
builder.setNegativeButton("取消", null);
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
ProxySDK.Logout();
ActivityBinder.super.onBackPressed();
}
});
builder.show();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.binder, menu);
return true;
}
private BaseAdapter adapter = new BaseAdapter() {
@Override
public int getCount() {
return binderList.size();
}
@Override
public Object getItem(int position) {
return binderList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = getLayoutInflater();
final View view;
final TextView text;
if (convertView == null) {
view = inflater.inflate(R.layout.binder_cell, parent, false);
} else {
view = convertView;
}
final HashMap<String,Object> map = binderList.get(position);
((TextView)view.findViewById(R.id.lb_title)).setText((String) map.get("dstuser"));
((TextView)view.findViewById(R.id.lb_detail)).setText("目标端口:" + map.get("dstport") + " 本地端口:" + map.get("localport"));
Button bt_del = view.findViewById(R.id.bt_del);
bt_del.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
((ProxySDK.ProxyBinder)map.get("binder")).Release();
binderList.remove(map);
adapter.notifyDataSetChanged();
}
});
return view;
}
};
}
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/proxydemo/src/main/java/cn/crossnat/proxydemo/MainActivity.java | Java | package cn.crossnat.proxydemo;
import android.content.Intent;
import android.content.res.Configuration;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.Toast;
import cn.crossnat.proxysdk.ProxySDK;
import java.util.HashMap;
public class MainActivity extends AppCompatActivity implements ProxySDK.ProxySDKEvent {
public final static String APP_TAG="APP";
public final static String NOTICE_SHUTDOWN="ProxySDK.onShutdown";
private EditText txt_user ;
private EditText txt_pwd ;
private Button bt_login ;
private ProgressBar progressBar ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txt_user = (EditText)findViewById(R.id.editText_userName);
txt_pwd = (EditText)findViewById(R.id.editText_pwd);
bt_login = (Button)findViewById(R.id.button_login);
progressBar = (ProgressBar)findViewById(R.id.progressBar_login);
updateStatus(ProxySDK.GetStatus());
ProxySDK.SetDelegate(this);
}
private void updateStatus(int status){
switch (status){
case 0:{//0：未登录 1：登录中 2: 已登录
txt_user.setEnabled(true);
txt_pwd.setEnabled(true);
bt_login.setEnabled(true);
bt_login.setText("登录");
progressBar.setVisibility(View.INVISIBLE);
}break;
case 1:{//0：未登录 1：登录中 2: 已登录
txt_user.setEnabled(false);
txt_pwd.setEnabled(false);
bt_login.setEnabled(false);
bt_login.setText("登录中...");
progressBar.setVisibility(View.VISIBLE);
}break;
case 2:{//0：未登录 1：登录中 2: 已登录
txt_user.setEnabled(false);
txt_pwd.setEnabled(false);
bt_login.setEnabled(false);
bt_login.setText("登录成功");
progressBar.setVisibility(View.INVISIBLE);
}break;
}
}
public void onClick_login(View sender){
updateStatus(1);
HashMap<String, String> map = new HashMap<String, String>();
map.put("token", txt_pwd.getText().toString());
map.put("appId", "test");
//TODO 此处修改为真实的服务器ip端口
ProxySDK.Login("10.138.59.148", 8500, txt_user.getText().toString(), map, false);
}
@Override
protected void onResume() {
super.onResume();
updateStatus(ProxySDK.GetStatus());
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
updateStatus(ProxySDK.GetStatus());
Log.d(APP_TAG,"onConfigurationChanged " + newConfig.toString());
}
/**
* @brief 登录结果回调
* @param errCode 错误代码
* @param errMsg 错误提示
*/
@Override
public void onLoginResult(final int errCode,final String errMsg){
this.runOnUiThread(new Runnable() {
@Override
public void run() {
updateStatus(ProxySDK.GetStatus());
if (errCode == 0) {
//成功
Intent intent = new Intent(MainActivity.this, ActivityBinder.class);
MainActivity.this.startActivity(intent);
ProxySDK.JoinRoom("room:1", new ProxySDK.ResponseInterface() {
@Override
public void onResponse(int code, String msg, String res) {
Log.e("TAG", "join room " + code + " " + msg);
}
});
} else {
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("登录失败");
builder.setMessage("错误码:" + errCode + ",提示:" + errMsg);
builder.setNegativeButton("好的", null);
builder.show();
}
}
});
}
/**
* @brief 掉线事件
* @param errCode 错误代码
* @param errMsg 错误提示或对方ip
*/
@Override
public void onShutdown(final int errCode, final String errMsg){
this.runOnUiThread(new Runnable() {
@Override
public void run() {
updateStatus(ProxySDK.GetStatus());
Toast.makeText(MainActivity.this,"掉线," + "错误码:" + errCode + ",提示:" + errMsg,Toast.LENGTH_SHORT).show();
NoticeCenter.Instance().PostNotice(NOTICE_SHUTDOWN,null);
}
});
}
/**
* @brief 被其他用户绑定事件
* @param binder 对方登录用户ID
*/
@Override
public void onBinded(final String binder){
this.runOnUiThread(new Runnable() {
@Override
public void run() {
updateStatus(ProxySDK.GetStatus());
Toast.makeText(MainActivity.this,"被" + binder + "绑定",Toast.LENGTH_SHORT).show();
}
});
}
@Override
public void onMessage(final String from_uuid, final String data, ProxySDK.ResponseInterface res_handle) {
res_handle.onResponse(0, "我已经收到该消息", "我已经收到该消息");
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this,"收到来自" + from_uuid + "的消息:" + data,Toast.LENGTH_SHORT).show();
}
});
}
@Override
public void onJoinRoom(final String from_uuid, final String room_id) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this, from_uuid + "加入房间:" + room_id, Toast.LENGTH_SHORT).show();
}
});
}
@Override
public void onExitRoom(final String from_uuid, final String room_id) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this, from_uuid + "退出房间:" + room_id, Toast.LENGTH_SHORT).show();
}
});
}
@Override
public void onRoomBroadcast(final String from_uuid, final String room_id, final String data) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this, "群" + room_id + "中" + from_uuid + "广播了消息:" + data, Toast.LENGTH_SHORT).show();
}
});
}
/**
* @brief 发送网速统计事件
* @param dst_uuid 目标用户ID
* @param bytesPerSec 发送网速，单位B/S
*/
@Override
public void onSendSpeed(String dst_uuid, long bytesPerSec){
Log.d(APP_TAG,"onSendSpeed " + dst_uuid + ":" + bytesPerSec / 1024 + "KB/s");
}
}
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/proxydemo/src/main/java/cn/crossnat/proxydemo/NoticeCenter.java | Java | package cn.crossnat.proxydemo;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.os.Handler;
public class NoticeCenter {
public static interface NoticeDelegate {
/**
* 监听者收到特点广播后回调
*
* @param noticeName
* 广播名
* @param obj
* 广播参数
*/
public void onRecvNotice(String noticeName, Object obj);
}
private static NoticeCenter instance = null;
private Map<String, List<NoticeDelegate>> delegates = new HashMap<String, List<NoticeDelegate>>();
public static NoticeCenter Instance() {
if (instance == null) {
instance = new NoticeCenter();
}
return instance;
}
/**
* 监听者开始监听特点广播
*
* @param noticeName
* 广播名称
* @param delegate
* 监听者
*/
public void AddDelegate(String noticeName, NoticeDelegate delegate) {
synchronized (delegates) {
List<NoticeDelegate> list = delegates.get(noticeName);
if (list == null) {
list = new ArrayList<NoticeDelegate>();
delegates.put(noticeName, list);
}
if (!list.contains(delegate)) {
list.add(delegate);
}
}
}
/**
* 监听者停止监听特点广播
*
* @param noticeName
* 广播名称
* @param delegate
* 监听者
*/
public void RemoveDelegate(String noticeName, NoticeDelegate delegate) {
synchronized (delegates) {
List<NoticeDelegate> list = delegates.get(noticeName);
if (list == null) {
return;
}
if (list.contains(delegate)) {
list.remove(delegate);
}
if (list.size() == 0) {
delegates.remove(noticeName);
}
}
}
/**
* 监听者停止监听的所有广播，
*
* @param delegate
*/
public void RemoveDelegate(NoticeDelegate delegate) {
synchronized (delegates) {
Collection<List<NoticeDelegate>> collect= new ArrayList<List<NoticeDelegate>>(delegates.values());
for (List<NoticeDelegate> list : collect) {
if (list.contains(delegate)) {
list.remove(delegate);
}
if (list.size() == 0) {
delegates.values().remove(list);
}
}
}
}
Handler handler=new Handler();
/**
* 发送特定广播
*
* @param noticeName
* 广播名
* @param obj
* 广播参数
*/
public void PostNotice(final String noticeName, final Object obj) {
synchronized (delegates) {
final List<NoticeDelegate> list = delegates.get(noticeName);
if (list == null) {
return;
}
handler.post(new Runnable() {
@Override
public void run() {
for (NoticeDelegate delegate : list) {
delegate.onRecvNotice(noticeName, obj);
}
}
});
}
}
}
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/proxydemo/src/test/java/cn/crossnat/proxydemo/ExampleUnitTest.java | Java | package cn.crossnat.proxydemo;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* Example local unit test, which will execute on the development machine (host).
*
* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
*/
public class ExampleUnitTest {
@Test
public void addition_isCorrect() throws Exception {
assertEquals(4, 2 + 2);
}
} | xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/proxysdk/build.gradle | Gradle | apply plugin: 'com.android.library'
android {
compileSdkVersion 28
defaultConfig {
minSdkVersion 16
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
externalNativeBuild {
cmake {
cppFlags "-std=c++14 -frtti -fexceptions"
}
}
ndk {
abiFilters "arm64-v8a"
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
debuggable true
jniDebuggable true
}
}
externalNativeBuild {
cmake {
path "CMakeLists.txt"
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
//Copy类型
task copySdkAarDebug(type: Copy) {
from('build/outputs/aar/')
into('../proxydemo/libs/')
include('proxysdk-debug.aar')
rename ('proxysdk-debug.aar', 'proxysdk.aar')
}
//Copy类型
task copySdkAarRelease(type: Copy) {
from('build/outputs/aar/')
into('../proxydemo/libs/')
include('proxysdk-release.aar')
rename ('proxysdk-release.aar', 'proxysdk.aar')
}
afterEvaluate {
tasks.matching {
it.name.equals('compileDebugSources')
}.each { task ->
task.dependsOn(copySdkAarDebug) // 任务依赖：执行task之前需要执行dependsOn指定的任务
}
tasks.matching {
it.name.equals('compileReleaseSources')
}.each { task ->
task.dependsOn(copySdkAarRelease) // 任务依赖：执行task之前需要执行dependsOn指定的任务
}
} | xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/proxysdk/src/main/cpp/native-lib.cpp | C++ | #include <jni.h>
#include <string>
#include "Util/logger.h"
#include "Util/MD5.h"
#include "Util/onceToken.h"
#include "Proxy/Proxy.h"
using namespace std;
using namespace toolkit;
#define JNI_API(retType,funName,...) extern "C" JNIEXPORT retType Java_cn_crossnat_proxysdk_ProxySDK_##funName(JNIEnv* env, jclass cls, ##__VA_ARGS__)
#define JClassSign_Response "cn/crossnat/proxysdk/ProxySDK$Response"
#define JClassSign_ResponseInterface "cn/crossnat/proxysdk/ProxySDK$ResponseInterface"
jobject makeJavaResponse(JNIEnv* env,jlong handle){
static jclass jclass_obj = (jclass)env->NewGlobalRef(env->FindClass(JClassSign_Response));
static jmethodID jmethodID_init = env->GetMethodID(jclass_obj, "<init>", "(J)V");
if(!handle){
return nullptr;
}
jobject ret = env->NewObject(jclass_obj, jmethodID_init,handle);
return ret;
}
string stringFromJstring(JNIEnv *env,jstring jstr){
if(!env || !jstr){
WarnL << "invalid args";
return "";
}
const char *field_char = env->GetStringUTFChars(jstr, 0);
string ret(field_char,env->GetStringUTFLength(jstr));
env->ReleaseStringUTFChars(jstr, field_char);
return ret;
}
string stringFromJbytes(JNIEnv *env,jbyteArray jbytes){
if(!env || !jbytes){
WarnL << "invalid args";
return "";
}
jbyte *bytes = env->GetByteArrayElements(jbytes, 0);
string ret((char *)bytes,env->GetArrayLength(jbytes));
env->ReleaseByteArrayElements(jbytes,bytes,0);
return ret;
}
string stringFieldFromJava(JNIEnv *env, jobject jdata,jfieldID jid){
if(!env || !jdata || !jid){
WarnL << "invalid args";
return "";
}
jstring field_str = (jstring)env->GetObjectField(jdata,jid);
auto ret = stringFromJstring(env,field_str);
env->DeleteLocalRef(field_str);
return ret;
}
string bytesFieldFromJava(JNIEnv *env, jobject jdata,jfieldID jid){
if(!env || !jdata || !jid){
WarnL << "invalid args";
return "";
}
jbyteArray jbufArray = (jbyteArray)env->GetObjectField(jdata, jid);
string ret = stringFromJbytes(env,jbufArray);
env->DeleteLocalRef(jbufArray);
return ret;
}
jstring jstringFromString(JNIEnv* env, const char* pat){
return (jstring)env->NewStringUTF(pat);
}
jbyteArray jbyteArrayFromString(JNIEnv* env, const char* pat,int len = 0){
if(len <= 0){
len = strlen(pat);
}
jbyteArray jarray = env->NewByteArray(len);
env->SetByteArrayRegion(jarray, 0, len, (jbyte *)(pat));
return jarray;
}
static JavaVM *s_jvm = nullptr;
/*
* 加载动态库
*/
JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved) {
s_jvm = vm;
initProxySDK();
return JNI_VERSION_1_6;
}
template<typename FUNC>
auto doInJavaThread(FUNC &&func) {
JNIEnv *env;
int status = s_jvm->GetEnv((void **) &env, JNI_VERSION_1_4);
if (status != JNI_OK) {
if (s_jvm->AttachCurrentThread(&env, NULL) != JNI_OK) {
throw std::runtime_error("AttachCurrentThread failed");
}
}
onceToken token(nullptr, [status]() {
if (status != JNI_OK) {
//Detach线程
s_jvm->DetachCurrentThread();
}
});
return func(env);
}
#define emitEvent(delegate,autorelease,method,argFmt,...) \
doInJavaThread([&](JNIEnv* env) { \
jclass cls = env->GetObjectClass(delegate); \
jmethodID jmid = env->GetMethodID(cls, method, argFmt); \
jobject localRef = env->NewLocalRef(delegate); \
if(localRef){ \
env->CallVoidMethod(localRef, jmid, ##__VA_ARGS__); \
/*局部变量其实在函数返回后会自动释放*/ \
env->DeleteLocalRef(localRef); \
if(autorelease){ \
env->DeleteGlobalRef(delegate);\
}\
}else{ \
WarnL << "弱引用已经释放:" << method << " " << argFmt; \
}\
/*局部变量其实在函数返回后会自动释放*/ \
env->DeleteLocalRef(cls); \
});
JNI_API(void,setUserInfo,jstring key,jstring value){
setUserInfo(stringFromJstring(env,key).c_str(),stringFromJstring(env,value).c_str());
}
JNI_API(void,clearUserInfo){
clearUserInfo();
}
JNI_API(void,login,jstring srv_url, jint srv_port, jstring user_name,jboolean use_ssl){
login(stringFromJstring(env,srv_url).c_str(),srv_port,stringFromJstring(env,user_name).c_str(),use_ssl);
}
JNI_API(void,logout){
logout();
}
JNI_API(jint ,getStatus){
return getStatus();
}
JNI_API(jlong , createBinder){
return (jlong) createBinder();
}
JNI_API(void ,releaseBinder,jlong ctx){
releaseBinder((BinderContext)ctx);
}
JNI_API(jint ,bind,jlong ctx,jstring dst_user,jint dst_port ,jint self_port){
return binder_bind((BinderContext)ctx,stringFromJstring(env,dst_user).c_str(),dst_port,self_port);
}
JNI_API(jint ,bind2,jlong ctx,jstring dst_user,jint dst_port ,jint self_port,jstring dst_url ,jstring self_ip){
return binder_bind2((BinderContext)ctx,
stringFromJstring(env,dst_user).c_str(),
dst_port,
self_port,
stringFromJstring(env,dst_url).c_str(),
stringFromJstring(env,self_ip).c_str());
}
JNI_API(void ,setBinderDelegate,jlong _ctx,jobject obj){
BinderContext ctx = (BinderContext)_ctx;
if(obj){
//弱全局引用可能会导致内存泄露
jobject globalRef = env->NewWeakGlobalRef(obj);
binder_setBindResultCB(ctx,[](void *userData, int errCode, const char *errMsg){
emitEvent((jobject)userData, false, "onBindResult","(ILjava/lang/String;)V",(jint)errCode,env->NewStringUTF(errMsg));
},globalRef);
binder_setSocketErrCB(ctx,[](void *userData, int errCode, const char *errMsg){
emitEvent((jobject)userData, false, "onRemoteSockErr","(ILjava/lang/String;)V",(jint)errCode,env->NewStringUTF(errMsg));
},globalRef);
} else{
binder_setBindResultCB(ctx, nullptr, nullptr);
binder_setSocketErrCB(ctx, nullptr, nullptr);
}
}
JNI_API(void ,setProxyDelegate,jobject obj){
makeJavaResponse(env, (jlong) 0);
if(obj){
jobject globalRef = env->NewWeakGlobalRef(obj);
setLoginCB([](void *userData, int errCode, const char *errMsg){
emitEvent((jobject) userData, false, "onLoginResult", "(ILjava/lang/String;)V", (jint) errCode, env->NewStringUTF(errMsg));
},globalRef);
setShutdownCB([](void *userData, int errCode, const char *errMsg){
emitEvent((jobject) userData, false, "onShutdown", "(ILjava/lang/String;)V",(jint)errCode,env->NewStringUTF(errMsg));
},globalRef);
setBindCB([](void *userData, const char *binder){
emitEvent((jobject) userData, false, "onBinded", "(Ljava/lang/String;)V",env->NewStringUTF(binder));
},globalRef);
setSendSpeedCB([](void *userData, const char *dst_uuid, uint64_t bytesPerSec){
emitEvent((jobject) userData, false, "onSendSpeed", "(Ljava/lang/String;J)V", env->NewStringUTF(dst_uuid), (jlong) bytesPerSec);
},globalRef);
setMessageCB([](void *userData, const char *from, const char *obj, const char *content, int content_len, void *invoker){
emitEvent((jobject) userData, false, "onMessage","(Ljava/lang/String;Ljava/lang/String;L" JClassSign_ResponseInterface ";)V",
env->NewStringUTF(from), env->NewStringUTF(content), makeJavaResponse(env, (jlong) invoker));
},globalRef);
setJoinRoomCB([](void *userData, const char *from, const char *room_id, const char *obj, const char *content, int content_len, void *invoker){
ProxyResponseDoAndRelease(invoker, 0, "", nullptr, "", 0);
emitEvent((jobject) userData,
false,
"onJoinRoom",
"(Ljava/lang/String;Ljava/lang/String;)V",
env->NewStringUTF(from), env->NewStringUTF(room_id));
},globalRef);
setExitRoomCB([](void *userData, const char *from, const char *room_id, const char *obj, const char *content, int content_len, void *invoker){
ProxyResponseDoAndRelease(invoker, 0, "", nullptr, "", 0);
emitEvent((jobject) userData,
false,
"onExitRoom",
"(Ljava/lang/String;Ljava/lang/String;)V",
env->NewStringUTF(from), env->NewStringUTF(room_id));
},globalRef);
setRoomBroadcastCB([](void *userData, const char *from, const char *room_id, const char *obj, const char *content, int content_len, void *invoker){
ProxyResponseDoAndRelease(invoker, 0, "", nullptr, "", 0);
emitEvent((jobject)userData,
false,
"onRoomBroadcast",
"(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V",
env->NewStringUTF(from),env->NewStringUTF(room_id),env->NewStringUTF(content));
},globalRef);
} else{
setLoginCB(nullptr, nullptr);
setShutdownCB(nullptr, nullptr);
setBindCB(nullptr, nullptr);
setSendSpeedCB(nullptr, nullptr);
setMessageCB(nullptr, nullptr);
setJoinRoomCB(nullptr, nullptr);
setExitRoomCB(nullptr, nullptr);
setRoomBroadcastCB(nullptr, nullptr);
}
}
JNI_API(void, invokeResponse, jlong ptr, jint code, jstring msg, jstring res) {
ProxyResponseDoAndRelease((void*)ptr, code, stringFromJstring(env, msg).data(), nullptr, stringFromJstring(env, res).data(), 0);
}
JNI_API(void,message,jstring to_uuid,jstring data,jobject onRes){
auto data_str = stringFromJstring(env, data);
jobject globalRef = onRes ? env->NewGlobalRef(onRes) : nullptr;
sendMessage(stringFromJstring(env, to_uuid).data(), data_str.data(), data_str.size(), globalRef,[](void *userData, int code, const char *message, const char *obj, const char *content, int content_len) {
jobject globalRef = (jobject) userData;
if (globalRef) {
emitEvent((jobject) globalRef, true, "onResponse", "(ILjava/lang/String;Ljava/lang/String;)V", (jint) code, env->NewStringUTF(message), env->NewStringUTF(content));
}
});
}
JNI_API(void,joinRoom,jstring room_id,jobject onRes){
jobject globalRef = onRes ? env->NewGlobalRef(onRes) : nullptr;
joinRoom(stringFromJstring(env,room_id).data(), globalRef, [](void *userData, int code, const char *message,const char *obj,const char *content,int content_len){
jobject globalRef = (jobject) userData;
if (globalRef) {
emitEvent((jobject)globalRef,true, "onResponse","(ILjava/lang/String;Ljava/lang/String;)V",(jint)code,env->NewStringUTF(message),env->NewStringUTF(content));
}
});
}
JNI_API(void,exitRoom,jstring room_id,jobject onRes){
jobject globalRef = onRes ? env->NewGlobalRef(onRes) : nullptr;
exitRoom(stringFromJstring(env,room_id).data(), globalRef, [](void *userData, int code, const char *message,const char *obj,const char *content,int content_len){
jobject globalRef = (jobject) userData;
if (globalRef) {
emitEvent((jobject)globalRef,true, "onResponse","(ILjava/lang/String;Ljava/lang/String;)V",(jint)code,env->NewStringUTF(message),env->NewStringUTF(content));
}
});
}
JNI_API(void,broadcastRoom,jstring room_id,jstring data,jobject onRes){
jobject globalRef = onRes ? env->NewGlobalRef(onRes) : nullptr;
auto data_str = stringFromJstring(env, data);
broadcastRoom(stringFromJstring(env,room_id).data(), data_str.data(), data_str.size(), globalRef, [](void *userData, int code, const char *message,const char *obj,const char *content,int content_len){
jobject globalRef = (jobject) userData;
if (globalRef) {
emitEvent((jobject)globalRef,true, "onResponse","(ILjava/lang/String;Ljava/lang/String;)V",(jint)code,env->NewStringUTF(message),env->NewStringUTF(content));
}
});
}
JNI_API(void,setGlobalOption,jstring key, jstring value){
setGlobalOption(stringFromJstring(env,key).c_str(),stringFromJstring(env,value).c_str());
}
JNI_API(jstring,getGlobalOption,jstring key){
char value[512];
getGlobalOption(stringFromJstring(env,key).c_str(),value);
return env->NewStringUTF(value);
}
JNI_API(jstring,dumpOptionsIni){
char out[1024 * 4];
int size = sizeof(out);
dumpOptionsIni(out,&size);
return env->NewStringUTF(out);
}
JNI_API(jint,loadOptionsIni,jstring ini_str){
return loadOptionsIni(stringFromJstring(env,ini_str).c_str());
}
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/proxysdk/src/main/java/cn/crossnat/proxysdk/ProxySDK.java | Java | package cn.crossnat.proxysdk;
import java.util.Map;
public class ProxySDK {
public static final int CODE_SUCCESS = 0;
public static final int CODE_OTHER = -1;
public static final int CODE_TIMEOUT = -2;
public static final int CODE_AUTHFAILED = -3;
public static final int CODE_UNSUPPORT = -4;
public static final int CODE_NOTFOUND = -5;
public static final int CODE_JUMP = -6;//服务器跳转
public static final int CODE_BUSY = -7;//服务器忙
public static final int CODE_NETWORK = -8;//网络错误
public static final int CODE_GATE = -9;//网关错误
public static final int CODE_BAD_REQUEST = -10;//非法的请求
public static final int CODE_CONFLICT = -100; //被挤占登录
public static final int CODE_BAD_LOGIN = -101;//正在登陆或者已经登录了
/**
* SDK全局事件监听
*/
public interface ProxySDKEvent {
/**
* 登录结果回调
* @param errCode 错误代码
* @param errMsg 错误提示
*/
void onLoginResult(int errCode, String errMsg);
/**
* 掉线事件
* @param errCode 错误代码
* @param errMsg 错误提示或对方ip
*/
void onShutdown(int errCode, String errMsg);
/**
* 被其他用户绑定事件
* @param binder 对方登录用户ID
*/
void onBinded(String binder);
/**
* 发送网速统计事件
* @param dst_uuid 目标用户ID
* @param bytesPerSec 发送网速,单位B/S
*/
void onSendSpeed(String dst_uuid, long bytesPerSec);
/**
* 收到透传数据事件
* @param from_uuid 数据来自目标
* @param data 请求数据
* @param res_handle 通过该对象回复数据
*/
void onMessage(String from_uuid,String data,ResponseInterface res_handle);
/**
* 其他人进入房间
* @param from_uuid 用户id
* @param room_id 房间id
*/
void onJoinRoom(String from_uuid,String room_id);
/**
* 其他人退出房间
* @param from_uuid
* @param room_id
*/
void onExitRoom(String from_uuid,String room_id);
/**
* 收到房间信息广播
* @param from_uuid 数据发送者
* @param room_id 房间id
* @param data 数据内容
*/
void onRoomBroadcast(String from_uuid,String room_id,String data);
}
/**
* 数据回复接口
*/
public interface ResponseInterface
{
/**
* 主动回复对方数据，或收到对方回复
* @param code 错误代码
* @param msg 错误提示
* @param res 回复内容
*/
void onResponse(int code,String msg,String res);
}
private static class Response implements ResponseInterface{
public Response(long handle){
mHandle = handle;
}
public void onResponse(int code,String msg,String res){
if(mHandle != 0){
invokeResponse(mHandle,code,msg,res);
mHandle = 0;
}
}
private long mHandle = 0;
}
/**
* 绑定器事件监听
*/
public interface ProxyBinderEvent {
/**
* 绑定结果回调函数定义
* @param errCode 错误代码
* @param errMsg 错误提示
*/
void onBindResult(int errCode, String errMsg);//登录结果回调
/**
* 远程套接字异常事件
* @param errCode 错误代码
* @param errMsg 错误提示
*/
void onRemoteSockErr(int errCode, String errMsg);
}
/**
* 创建一个绑定器,所谓绑定指的是把某远程主机某一端口映射到本机某端口
*/
public static class ProxyBinder {
/**
* 构造函数,在native层创建绑定器
*/
public ProxyBinder(){
contex = createBinder();
}
/**
* 手动销毁绑定器,防止由于GC滞后导致本机端口迟迟无法释放的问题
*/
public void Release(){
if(contex != 0){
SetDelegate(null);
releaseBinder(contex);
contex = 0;
}
}
/**
* GC触发的绑定器销毁动作
*/
@Override
protected void finalize() throws Throwable {
super.finalize();
Release();
}
/**
* 触发绑定动作;绑定成功后,访问本机映射的TCP端口犹如访问目标主机
* @param dst_user 目标主机
* @param dst_port 目标主机端口号
* @param self_port 映射至本机的端口号,如果传入0则让系统随机分配
* @return 本机端口号,-1代表绑定本机端口失败(可能已占用,也可能没有权限使用该端口)
*/
public int Bind(String dst_user,int dst_port ,int self_port){
return bind2(contex,dst_user,dst_port,self_port,"127.0.0.1","127.0.0.1");
}
/**
* 触发绑定动作;绑定成功后,访问本机映射的TCP端口将触发目标主机去访问dst_url:dst_port对应的主机
* @param dst_user 目标主机
* @param dst_port 目标主机访问的端口号
* @param self_port 映射至本机的端口号,如果传入0则让系统随机分配
* @param dst_url 目标主机访问的ip或域名
* @param self_ip 本机监听ip地址,建议127.0.0.1或0.0.0.0
* @return 本机端口号,-1代表绑定本机端口失败(可能已占用,也可能没有权限使用该端口)
*/
public int Bind(String dst_user,int dst_port ,int self_port,String dst_url,String self_ip){
return bind2(contex,dst_user,dst_port,self_port,dst_url,self_ip);
}
/**
* 设置绑定事件监听
* @param delegate 监听者,设置null则移除监听
* @see ProxyBinderEvent
*/
public void SetDelegate(ProxyBinderEvent delegate){
setBinderDelegate(contex,delegate);
}
//native层绑定者指针地址
private long contex = 0;
}
/**
* 异步登录
* @param srv_url 服务器ip或域名
* @param srv_port 服务器端口
* @param user_name 登录用户名
* @param user_info 用户其他信息,后续可能要传入密码、设备信息等
* @param use_ssl 服务器端口是否为加密服务端口
*/
public static void Login(String srv_url, int srv_port, String user_name, Map<String,String> user_info, boolean use_ssl){
clearUserInfo();
if(user_info != null){
Object[] keyValuePairs = user_info.entrySet().toArray();
for (int i = 0; i < user_info.size(); i++){
Map.Entry entry = (Map.Entry)keyValuePairs[i];
setUserInfo((String)entry.getKey(),(String)entry.getValue());
}
}
login(srv_url,srv_port,user_name,use_ssl);
}
/**
* 异步登出
*/
public static void Logout(){
logout();
}
/**
* 获取当前登录状态
* @return 登录状态;0:未登录 1:登录中 2: 已登录
*/
public static int GetStatus(){
return getStatus();
}
/**
* 设置SDK事件监听
* @param delegate SDK事件监听者,设置null则移除监听
* @see ProxySDKEvent
*/
public static void SetDelegate(ProxySDKEvent delegate){
setProxyDelegate(delegate);
}
/**
* 设置全局参数配置
* @param key 配置名
* @param value 配置值
*/
public static void SetGlobalOption(String key,String value){
setGlobalOption(key,value);
}
/**
* 获取全局参数配置
* @param key 配置名
* @return 配置值
*/
public static String GetGlobalOption(String key){
return getGlobalOption(key);
}
/**
* 以ini格式导出全局配置
* @return 导出的ini配置
*/
public static String DumpOptionsIni(){
return dumpOptionsIni();
}
/**
* 以ini格式加载全局配置
* @param ini_str ini配置字符串
*/
public static void LoadOptionsIni(String ini_str){
loadOptionsIni(ini_str);
}
/**
* 发送消息给对方
* @param dst_user 目标用户
* @param data 数据
* @param onRes 回调
*/
public static void Message(String dst_user,String data,ResponseInterface onRes){
message(dst_user,data,onRes);
}
/**
* 加入房间
* @param room_id 房间id
* @param onRes 成功与否回调
*/
public static void JoinRoom(String room_id,ResponseInterface onRes){
joinRoom(room_id,onRes);
}
/**
* 退出房间
* @param room_id 房间id
* @param onRes 成功与否回调
*/
public static void ExitRoom(String room_id,ResponseInterface onRes){
exitRoom(room_id,onRes);
}
/**
* 发送群消息
* @param room_id 房间id
* @param data 消息内容
* @param onRes 成功与否回调
*/
public static void BroadcastRoom(String room_id,String data,ResponseInterface onRes){
broadcastRoom(room_id,data,onRes);
}
/**
* native层私有接口
*/
private static native void setUserInfo(String key,String value);
private static native void clearUserInfo();
private static native void login(String srv_url, int srv_port, String user_name,boolean use_ssl);
private static native void logout();
private static native int getStatus();
private static native void setProxyDelegate(Object obj);
private static native long createBinder();
private static native void releaseBinder(long ctx);
private static native int bind(long ctx,String dst_user,int dst_port ,int self_port);
private static native int bind2(long ctx,String dst_user,int dst_port ,int self_port,String dst_url,String self_ip);
private static native void setBinderDelegate(long ctx,Object obj);
private static native void setGlobalOption(String key,String value);
private static native String getGlobalOption(String key);
private static native String dumpOptionsIni();
private static native int loadOptionsIni(String ini_str);
private static native void invokeResponse(long res_handle,int code,String msg,String response);
private static native void message(String dst_user,String data,ResponseInterface onRes);
private static native void joinRoom(String room_id,ResponseInterface onRes);
private static native void exitRoom(String room_id,ResponseInterface onRes);
private static native void broadcastRoom(String room_id,String data,ResponseInterface onRes);
/////////////////////////JNI底层接口，请勿直接使用，请使用JAVA对象/////////////////////////////////////////////
static {
System.loadLibrary("ProxySDK");
}
}
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
Android_Project/ProxySDK/settings.gradle | Gradle | include ':proxydemo' ,':proxysdk'
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxySDK/ProxySDK/ProxySDK.h | C/C++ Header | #import <Foundation/Foundation.h>
#if defined(__cplusplus)
#define FOUNDATION_EXTERN extern "C"
#else
#define FOUNDATION_EXTERN extern
#endif
typedef enum : NSInteger{
CODE_SUCCESS = 0,
CODE_OTHER = -1,
CODE_TIMEOUT = -2,
CODE_AUTHFAILED = -3,
CODE_UNSUPPORT = -4,
CODE_NOTFOUND = -5,
CODE_JUMP = -6,//服务器跳转
CODE_BUSY = -7,//服务器忙
CODE_NETWORK = -8,//网络错误
CODE_GATE = -9,//网关错误
CODE_BAD_REQUEST = -10,//非法的请求
CODE_CONFLICT = -100, //被挤占登录
CODE_BAD_LOGIN = -101,//正在登陆或者已经登录了
} ERROR_CODE;
typedef void(^ResponseBlock)(int code,NSString *message,NSString *obj,NSData *content);
/**
* 登录结果事件广播,广播参数是一个NSDictionary,里面包含code和msg键
* code 错误代码
* msg 错误提示
*/
FOUNDATION_EXTERN NSString * const kProxyEventLoginResult;
/*
* 掉线事件广播,广播参数是一个NSDictionary,里面包含code和msg键
* code 错误代码
* msg 错误提示或对方ip
*/
FOUNDATION_EXTERN NSString * const kProxyEventShutdown;
/**
* 设备被绑定事件广播,广播参数是一个NSDictionary,里面包含binder键
* binder 绑定者用户名
*/
FOUNDATION_EXTERN NSString * const kProxyEventBinded;
/**
* 设备上传至某用户网速统计事件广播,广播参数是一个NSDictionary,包含bytesPerSec和dst键
* bytesPerSec 网速,单位B/S
* dst 目标用户名
*/
FOUNDATION_EXTERN NSString * const kProxyEventSendSpeed;
/**
* 收到消息广播事件
* 广播参数是一个NSDictionary,包含 from/room_id/obj/data 键
* from 发送者id
* obj json对象，字符串方式展示
* data 消息主体内容
* response ResponseBlock类型的回调block，请执行只之
*/
FOUNDATION_EXTERN NSString * const kProxyEventMessage;
/**
* 收到房间消息广播事件
* 广播参数是一个NSDictionary,包含 from/room_id/obj/data 键
* from 发送者id
* room_id 房间id
* obj json对象，字符串方式展示
* data 消息主体内容
*/
FOUNDATION_EXTERN NSString * const kProxyEventRoomMessage;
/**
* 其他人进入房间事件
* 广播参数是一个NSDictionary,包含 from/room_id/obj/data 键
* from 发送者id
* room_id 房间id
* obj json对象，字符串方式展示
* data 消息主体内容
*/
FOUNDATION_EXTERN NSString * const kProxyEventJoinRoom;
/**
* 其他人退出房间事件
* 广播参数是一个NSDictionary,包含 from/room_id/obj/data 键
* from 发送者id
* room_id 房间id
* obj json对象，字符串方式展示
* data 消息主体内容
*/
FOUNDATION_EXTERN NSString * const kProxyEventExitRoom;
@interface ProxySDK : NSObject
/**
* 初始化sdk
*/
+(void) initSDK;
/**
* 异步登录
* @param srv_url 服务器ip或域名
* @param srv_port 服务器端口
* @param user_name 登录用户名
* @param user_info 用户描述信息,比如说用户的设备信息等
* @param use_ssl 服务器端口是否为加密端口
*/
+(void) loginWithSrvUrl:(NSString *)srv_url
srvPort:(uint16_t) srv_port
userName:(NSString *)user_name
userInfo:(NSDictionary *)user_info
useSSL:(BOOL)use_ssl;
/**
* 异步登出
*/
+(void) logout;
/**
* 获取当前登录状态
* @return 登录状态;0:未登录 1:登录中 2:已登录
*/
+(int) getStatus;
/**
* 发送数据给某用户
* @param dst_user 目标用户ID
* @param data 消息内容
* @param callback 回调
*/
+(void) sendMessageTo:(NSString*) dst_user
withData:(NSData *) data
andCallBack:(ResponseBlock) callback;
/**
* 广播消息至房间
* @param room_id 房间id
* @param data 消息内容
* @param callback 回调
*/
+(void) broadcastMessageToRoom:(NSString*) room_id
withData:(NSData *) data
andCallBack:(ResponseBlock) callback;
/**
* 加入房间
* @param room_id 房间id
* @param callback 回调
*/
+(void) joinRoom:(NSString*) room_id
withCallBack:(ResponseBlock) callback;
/**
* 退出
* @param room_id 房间id
* @param callback 回调
*/
+(void) exitRoom:(NSString*) room_id
withCallBack:(ResponseBlock) callback;
@end
@class ProxyBinder;
/**
* 绑定器事件代理
*/
@protocol ProxyBinderDelegate <NSObject>
@optional
/**
* 绑定结果事件回调
* @param result 绑定结果详情,包含code和msg键
* code 错误代码
* msg 错误提示
* @param binder 绑定器
*/
-(void) onBindResult:(NSDictionary *)result binder:(ProxyBinder *)binder;
/**
* 远程主机汇报连接TCP服务失败事件回调
* @param err 失败详情,包含code和msg键
* code 错误代码
* msg 错误提示
* @param binder 绑定器
*/
-(void) onSocketErr:(NSDictionary *) err binder:(ProxyBinder *) binder;
@end
/**
* 绑定器
*/
@interface ProxyBinder : NSObject
/**
* 事件监听者
*/
@property(nonatomic,weak) id<ProxyBinderDelegate> delegate;
/**
* 触发绑定动作;绑定成功后,访问本机映射的TCP端口犹如访问目标主机
* @param dst_user 目标主机
* @param dst_port 目标主机端口号
* @param local_port 映射至本机的端口号,如果传入0则让系统随机分配
* @return 本机端口号,-1代表绑定本机端口失败(可能已占用,也可能没有权限使用该端口)
*/
-(int) bindUser:(NSString *)dst_user
dstPort:(uint16_t)dst_port
localPort:(uint16_t)local_port;
/**
* 触发绑定动作;绑定成功后,访问本机映射的TCP端口将触发目标主机去访问dst_url:dst_port对应的主机
* @param dst_user 目标主机
* @param dst_port 目标主机访问的端口号
* @param local_port 映射至本机的端口号,如果传入0则让系统随机分配
* @param dst_url 目标主机访问的ip或域名
* @param local_ip 本机监听ip地址,建议127.0.0.1或0.0.0.0
* @return 本机端口号,-1代表绑定本机端口失败(可能已占用,也可能没有权限使用该端口)
*/
-(int) bindUser:(NSString *)dst_user
dstPort:(uint16_t)dst_port
localPort:(uint16_t)local_port
dstUrl:(NSString *)dst_url
localIp:(NSString *)local_ip;
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxySDK/ProxySDK/ProxySDK.mm | Objective-C++ | #import "ProxySDK.h"
#import "Proxy.h"
#import "Util/onceToken.h"
#import "Util/logger.h"
using namespace toolkit;
NSString * const kProxyEventLoginResult = @"kProxyEventLoginResult";
NSString * const kProxyEventShutdown = @"kProxyEventShutdown";
NSString * const kProxyEventBinded = @"kProxyEventBinded";
NSString * const kProxyEventSendSpeed = @"kProxyEventSendSpeed";
NSString * const kProxyEventMessage = @"kProxyEventMessage";
NSString * const kProxyEventRoomMessage = @"kProxyEventRoomMessage";
NSString * const kProxyEventJoinRoom = @"kProxyEventJoinRoom";
NSString * const kProxyEventExitRoom = @"kProxyEventExitRoom";
#define ATTACH_VAL(dic) \
do{\
[dic setObject:@(from) forKey:@"from"]; \
[dic setObject:@(room_id) forKey:@"room_id"]; \
[dic setObject:@(obj) forKey:@"obj"]; \
NSData *nsdata = [[NSData alloc] initWithBytes:content length:content_len]; \
[dic setObject:nsdata forKey:@"data"];\
}while(0)
@implementation ProxySDK
+(void) initSDK{
static onceToken token([](){
initProxySDK();
setLoginCB([](void *userData,int errCode ,const char *errMsg){
NSDictionary *dic = @{@"code":@(errCode),@"msg":[NSString stringWithUTF8String:errMsg]};
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:kProxyEventLoginResult object:dic];
});
},nullptr);
setShutdownCB([](void *userData,int errCode ,const char *errMsg){
NSDictionary *dic = @{@"code":@(errCode),@"msg":[NSString stringWithUTF8String:errMsg]};
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:kProxyEventShutdown object:dic];
});
},nullptr);
setBindCB([](void *userData,const char *binder){
NSDictionary *dic = @{@"binder":[NSString stringWithUTF8String:binder]};
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:kProxyEventBinded object:dic];
});
},nullptr);
setSendSpeedCB([](void *userData,const char *dst_uuid,uint64_t bytesPerSec){
NSDictionary *dic = @{@"bytesPerSec":@(bytesPerSec),@"dst":[NSString stringWithUTF8String:dst_uuid]};
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:kProxyEventSendSpeed object:dic];
});
},nullptr);
setMessageCB([](void *userData, const char *from, const char *obj, const char *content, int content_len, void *invoker){
ResponseBlock block = ^(int code,NSString *message,NSString *obj,NSData *content){
ProxyResponseDoAndRelease(invoker, code, [message UTF8String], [obj UTF8String], (char *)content.bytes, (int)content.length);
};
NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
[dic setObject:@(from) forKey:@"from"];
[dic setObject:@(obj) forKey:@"obj"];
NSData *nsdata = [[NSData alloc] initWithBytes:content length:content_len];
[dic setObject:nsdata forKey:@"data"];
[dic setObject:block forKey:@"response"];
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:kProxyEventMessage object:dic];
});
}, nullptr);
setJoinRoomCB([](void *userData, const char *from, const char *room_id, const char *obj, const char *content, int content_len, void *invoker){
ProxyResponseDoAndRelease(invoker, 0, "", nullptr, "", 0);
NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
ATTACH_VAL(dic);
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:kProxyEventJoinRoom object:dic];
});
}, nullptr);
setExitRoomCB([](void *userData, const char *from, const char *room_id, const char *obj, const char *content, int content_len, void *invoker){
ProxyResponseDoAndRelease(invoker, 0, "", nullptr, "", 0);
NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
ATTACH_VAL(dic);
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:kProxyEventExitRoom object:dic];
});
}, nullptr);
setRoomBroadcastCB([](void *userData, const char *from, const char *room_id, const char *obj, const char *content, int content_len, void *invoker){
ProxyResponseDoAndRelease(invoker, 0, "", nullptr, "", 0);
NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
ATTACH_VAL(dic);
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:kProxyEventRoomMessage object:dic];
});
}, nullptr);
},[](){
setLoginCB(nullptr,nullptr);
setShutdownCB(nullptr,nullptr);
setBindCB(nullptr,nullptr);
setSendSpeedCB(nullptr,nullptr);
setMessageCB(nullptr,nullptr);
setJoinRoomCB(nullptr,nullptr);
setExitRoomCB(nullptr,nullptr);
setRoomBroadcastCB(nullptr,nullptr);
});
}
+(void) loginWithSrvUrl:(NSString *)srv_url
srvPort:(uint16_t) srv_port
userName:(NSString *)user_name
userInfo:(NSDictionary *)user_info
useSSL:(BOOL)use_ssl{
[ProxySDK initSDK];
clearUserInfo();
for (NSString *key in user_info) {
setUserInfo([key UTF8String],[user_info[key] UTF8String]);
}
login([srv_url UTF8String],srv_port,[user_name UTF8String],use_ssl);
}
+(void) logout{
logout();
}
+(int) getStatus{
return getStatus();
}
static ProxyResponseCB s_response = [](void *userData,
int code,
const char *message,
const char *obj,
const char *content,
int content_len){
NSString *ns_message = [NSString stringWithUTF8String:message];
NSString *ns_obj = [NSString stringWithUTF8String:obj];
NSData *ns_content = [NSData dataWithBytes:content length:content_len];
dispatch_async(dispatch_get_main_queue(), ^{
ResponseBlock cb_ptr = CFBridgingRelease(userData);
cb_ptr(code,ns_message,ns_obj,ns_content);
});
};
+(void) sendMessageTo:(NSString*) dst_user
withData:(NSData *) data
andCallBack:(ResponseBlock) callback{
sendMessage([dst_user UTF8String], (char *)data.bytes, (int)data.length , (void*)CFBridgingRetain(callback), s_response);
}
/**
* 广播消息至房间
* @param room_id 房间id
* @param data 消息内容
* @param callback 回调
*/
+(void) broadcastMessageToRoom:(NSString*) room_id
withData:(NSData *) data
andCallBack:(ResponseBlock) callback{
broadcastRoom([room_id UTF8String], (char *)data.bytes, (int)data.length, (void*)CFBridgingRetain(callback), s_response);
}
/**
* 加入房间
* @param room_id 房间id
* @param callback 回调
*/
+(void) joinRoom:(NSString*) room_id
withCallBack:(ResponseBlock) callback{
joinRoom([room_id UTF8String], (void*)CFBridgingRetain(callback), s_response);
}
/**
* 退出
* @param room_id 房间id
* @param callback 回调
*/
+(void) exitRoom:(NSString*) room_id
withCallBack:(ResponseBlock) callback{
exitRoom([room_id UTF8String], (void*)CFBridgingRetain(callback), s_response);
}
@end
@implementation ProxyBinder
{
BinderContext _contex;
}
-(instancetype) init{
self = [super init];
if (self) {
_contex = createBinder();
binder_setBindResultCB(_contex,[](void *userData,int errCode,const char *errMsg){
ProxyBinder *binder = (__bridge ProxyBinder *)userData;
NSDictionary *dic = @{@"code":@(errCode),@"msg":[NSString stringWithUTF8String:errMsg]};
dispatch_async(dispatch_get_main_queue(), ^{
if ([binder.delegate respondsToSelector:@selector(onBindResult:binder:)]) {
[binder.delegate onBindResult:dic binder:binder];
}
});
},(__bridge void *)self);
binder_setSocketErrCB(_contex,[](void *userData,int errCode,const char *errMsg){
ProxyBinder *binder = (__bridge ProxyBinder *)userData;
NSDictionary *dic = @{@"code":@(errCode),@"msg":[NSString stringWithUTF8String:errMsg]};
dispatch_async(dispatch_get_main_queue(), ^{
if ([binder.delegate respondsToSelector:@selector(onSocketErr:binder:)]) {
[binder.delegate onSocketErr:dic binder:binder];
}
});
},(__bridge void *)self);
}
return self;
}
-(void) dealloc{
binder_setBindResultCB(_contex,nullptr,nullptr);
binder_setSocketErrCB(_contex,nullptr,nullptr);
releaseBinder(_contex);
}
-(int) bindUser:(NSString *)user
dstPort:(uint16_t) d_port
localPort:(uint16_t) l_port{
return binder_bind(_contex,
[user UTF8String],
d_port,
l_port);
}
-(int) bindUser:(NSString *)dst_user
dstPort:(uint16_t)dst_port
localPort:(uint16_t)local_port
dstUrl:(NSString *)dst_url
localIp:(NSString *)local_ip{
return binder_bind2(_contex,
[dst_user UTF8String],
dst_port,
local_port,
[dst_url UTF8String],
[local_ip UTF8String]);
}
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/AppDelegate.h | C/C++ Header | //
// AppDelegate.h
// ProxyTester
//
// Created by xzl on 2017/7/11.
// Copyright © 2017年 xzl. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/AppDelegate.mm | Objective-C++ | //
// AppDelegate.m
// ProxyTester
//
// Created by xzl on 2017/7/11.
// Copyright © 2017年 xzl. All rights reserved.
//
#import "AppDelegate.h"
#import "Proxy.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
{
UIBackgroundTaskIdentifier bgTask;
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
return YES;
}
- (void)applicationWillResignActive:(UIApplication *)application {
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
}
- (void)applicationDidEnterBackground:(UIApplication *)application
{
bgTask = [application beginBackgroundTaskWithExpirationHandler:^{
// 10分钟后执行这里，应该进行一些清理工作，如断开和服务器的连接等
// ...
// stopped or ending the task outright.
[application endBackgroundTask:bgTask];
bgTask = UIBackgroundTaskInvalid;
log_warn("%s","ended background task!");
}];
if (bgTask == UIBackgroundTaskInvalid) {
log_warn("%s","failed to start background task!");
}else{
log_info("%s","started background task!");
}
}
- (void)applicationWillEnterForeground:(UIApplication *)application
{
// 如果没到10分钟又打开了app,结束后台任务
if (bgTask!=UIBackgroundTaskInvalid) {
[application endBackgroundTask:bgTask];
bgTask = UIBackgroundTaskInvalid;
log_info("%s","cancel background task!");
}
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}
- (void)applicationWillTerminate:(UIApplication *)application {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/Tools/Common.h | C/C++ Header | #import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@interface Common : NSObject
+ (void)shakeAnimationForView:(UIView *) view;
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/Tools/Common.m | Objective-C | #import "Common.h"
@implementation Common
+ (void)shakeAnimationForView:(UIView *) view
{
// 获取到当前的View
CALayer *viewLayer = view.layer;
// 获取当前View的位置
CGPoint position = viewLayer.position;
// 移动的两个终点位置
CGPoint x = CGPointMake(position.x + 10, position.y);
CGPoint y = CGPointMake(position.x - 10, position.y);
// 设置动画
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"];
// 设置运动形式
[animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault]];
// 设置开始位置
[animation setFromValue:[NSValue valueWithCGPoint:x]];
// 设置结束位置
[animation setToValue:[NSValue valueWithCGPoint:y]];
// 设置自动反转
[animation setAutoreverses:YES];
// 设置时间
[animation setDuration:.06];
// 设置次数
[animation setRepeatCount:3];
// 添加上动画
[viewLayer addAnimation:animation forKey:nil];
}
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/Tools/NSString+Valid.h | C/C++ Header |
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@interface NSString (Valid)
-(NSString *)fileFullPath;
-(BOOL)isChinese;
-(NSInteger)find:(NSString *)substr;
+(NSString *) fromInt:(NSInteger) val;
+(NSString *) fromFloat:(float) val;
+(NSString *) fromDouble:(double) val;
+(NSString *)getDataSizeString:(int) nSize;
+(NSString *)getDocumentPath;
+(NSString *)gen_uuid;
- (CGSize) sizeForFont:(UIFont*)font
constrainedToSize:(CGSize)constraint
lineBreakMode:(NSLineBreakMode)lineBreakMode;
-(BOOL)notEmpty;
-(NSString *)md5String;
- (NSComparisonResult) compareAsNum: (NSString *) other;
-(NSString *)encodedString;
- (NSString *)encodeToPercentEscapeString;
- (NSString *)decodeFromPercentEscapeString;
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/Tools/NSString+Valid.m | Objective-C |
#import "NSString+Valid.h"
#import <CommonCrypto/CommonDigest.h>
@implementation NSString (Valid)
-(BOOL)isChinese{
NSString *match=@"(^[\u4e00-\u9fa5]+$)";
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF matches %@", match];
return [predicate evaluateWithObject:self];
}
+(NSString *) fromFloat:(float) val{
return [NSString stringWithFormat:@"%f",val];
}
+(NSString *) fromDouble:(double) val{
return [NSString stringWithFormat:@"%f",val];
}
+(NSString *) fromInt:(NSInteger) val
{
return [NSString stringWithFormat:@"%lu",val];
}
-(BOOL) notEmpty{
if (![self isEqualToString:@""]&&
![self isEqualToString:@"(null)"]&&
![self isEqualToString:@"null"]&&
![self isEqualToString:@"<null>"]) {
return true;
}
return false;
}
-(NSInteger)find:(NSString *)substr{
NSRange foundObj=[self rangeOfString:substr options:NSCaseInsensitiveSearch];
if (foundObj.length>0) {
return foundObj.location;
}
return -1;
}
#pragma mark 包大小转换工具类（将包大小转换成合适单位）
+(NSString *)getDataSizeString:(int) nSize
{
NSString *string = nil;
if (nSize<1024)
{
string = [NSString stringWithFormat:@"%dB", nSize];
}
else if (nSize<1048576)
{
string = [NSString stringWithFormat:@"%dK", (nSize/1024)];
}
else if (nSize<1073741824)
{
if ((nSize%1048576)== 0 )
{
string = [NSString stringWithFormat:@"%dM", nSize/1048576];
}
else
{
int decimal = 0; //小数
NSString* decimalStr = nil;
decimal = (nSize%1048576);
decimal /= 1024;
if (decimal < 10)
{
decimalStr = [NSString stringWithFormat:@"%d", 0];
}
else if (decimal >= 10 && decimal < 100)
{
int i = decimal / 10;
if (i >= 5)
{
decimalStr = [NSString stringWithFormat:@"%d", 1];
}
else
{
decimalStr = [NSString stringWithFormat:@"%d", 0];
}
}
else if (decimal >= 100 && decimal < 1024)
{
int i = decimal / 100;
if (i >= 5)
{
decimal = i + 1;
if (decimal >= 10)
{
decimal = 9;
}
decimalStr = [NSString stringWithFormat:@"%d", decimal];
}
else
{
decimalStr = [NSString stringWithFormat:@"%d", i];
}
}
if (decimalStr == nil || [decimalStr isEqualToString:@""])
{
string = [NSString stringWithFormat:@"%dMss", nSize/1048576];
}
else
{
string = [NSString stringWithFormat:@"%d.%@M", nSize/1048576, decimalStr];
}
}
}
else // >1G
{
string = [NSString stringWithFormat:@"%dG", nSize/1073741824];
}
return string;
}
+(NSString *)getDocumentPath
{
#ifdef __IPHONE_OS_VERSION_MIN_REQUIRED
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
return documentsDirectory;
#else
NSString* homePath = [[NSBundle mainBundle] resourcePath];
return homePath;
#endif
}
-(NSString *)fileFullPath{
static NSString *DocumentPath=nil;
if (!DocumentPath) {
DocumentPath=[NSString getDocumentPath];
}
if ([self hasPrefix:@"/"]) {
return [NSString stringWithFormat:@"%@%@",DocumentPath,self];
}
return [NSString stringWithFormat:@"%@/%@",DocumentPath,self];
}
- (CGSize) sizeForFont:(UIFont*)font
constrainedToSize:(CGSize)constraint
lineBreakMode:(NSLineBreakMode)lineBreakMode
{
CGSize size = [self sizeWithFont:font constrainedToSize:constraint lineBreakMode:lineBreakMode];
return size;
}
-(NSString *)md5String
{
const char *cStr = [self UTF8String];
unsigned char result[16];
CC_MD5( cStr, (CC_LONG)strlen(cStr), result );
return [NSString stringWithFormat:
@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
result[0], result[1], result[2], result[3],
result[4], result[5], result[6], result[7],
result[8], result[9], result[10], result[11],
result[12], result[13], result[14], result[15]];
}
- (NSComparisonResult) compareAsNum: (NSString *) other
{
int intSelf=[self intValue];
int otherSelf=[other intValue];
if (intSelf>otherSelf) {
return NSOrderedDescending;
}else if (intSelf==otherSelf){
return NSOrderedSame;
}else{
return NSOrderedAscending;
}
}
-(NSString *)encodedString{
return [self stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
}
- (NSString *)encodeToPercentEscapeString{
// Encode all the reserved characters, per RFC 3986
// (<http://www.ietf.org/rfc/rfc3986.txt>)
NSString *outputStr = (NSString *) CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
(CFStringRef)self,
NULL,
(CFStringRef)@"!*'();:@&=+$,/?%#[]",
kCFStringEncodingUTF8));
return outputStr;
}
- (NSString *)decodeFromPercentEscapeString{
NSMutableString *outputStr = [NSMutableString stringWithString:self];
[outputStr replaceOccurrencesOfString:@"+"
withString:@" "
options:NSLiteralSearch
range:NSMakeRange(0, [outputStr length])];
return [outputStr stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
}
+(NSString *)gen_uuid;
{
CFUUIDRef uuid_ref = CFUUIDCreate(NULL);
CFStringRef uuid_string_ref= CFUUIDCreateString(NULL, uuid_ref);
CFRelease(uuid_ref);
NSString *uuid = [NSString stringWithString:(__bridge NSString*)uuid_string_ref];
CFRelease(uuid_string_ref);
return uuid;
}
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/Tools/WaitingHUD.h | C/C++ Header | #import <UIKit/UIKit.h>
@interface WaitingHUD : UIView
{
@public
__weak IBOutlet UILabel *lb_title;
__weak IBOutlet UIImageView *view_progress;
__weak IBOutlet UIActivityIndicatorView *loadingView;
}
@property(nonatomic,copy) NSString *message;
@property(nonatomic,retain) UIImage *userImage;
- (void) startAnimation;
- (void) stopAnimation;
@end
@interface UIView (WaitingHUD)
@property(nonatomic,retain) WaitingHUD *hud;
- (void) showHUD:(NSString *)message;
- (void) dismissHUDWithImage:(UIImage *)img Message:(NSString *)message Delay:(float)delay;
- (void) dismissHUDWithSuccess:(NSString *)message;
- (void) dismissHUDWithInfo:(NSString *)message;
- (void) dismissHUDWithError:(NSString *)message;
- (void) dismissHUD;
+ (UIView *) topScreen;
+ (void) showToastImage:(UIImage*)img Message:(NSString *)message;
+ (void) showToastSuccess:(NSString *)message;
+ (void) showToastInfo:(NSString *)message;
+ (void) showToastError:(NSString *)message;
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/Tools/WaitingHUD.m | Objective-C | #import "WaitingHUD.h"
#import <objc/runtime.h>
#import "NSString+Valid.h"
static char hudKey;
@implementation WaitingHUD
{
__weak IBOutlet NSLayoutConstraint *con_img_width;
__weak IBOutlet NSLayoutConstraint *con_title_top;
}
-(id)init{
self=[super init];
if (self) {
NSArray *arr=[[NSBundle mainBundle] loadNibNamed:@"WaitingHUD" owner:self options:nil];
self=[arr firstObject];
}
return self;
}
- (void)startAnimation{
[loadingView startAnimating];
view_progress.hidden = true;
con_img_width.constant = 40;
}
- (void)stopAnimation{
[loadingView stopAnimating];
view_progress.hidden = false;
con_img_width.constant = _userImage ? 40 : 0;
}
-(void)setMessage:(NSString *)message{
_message = message;
lb_title.text = message;
con_title_top.constant = [message notEmpty] * 4;
}
-(void)setUserImage:(UIImage *)userImage{
_userImage = userImage;
view_progress.image = userImage;
if(userImage){
[self stopAnimation];
}
}
@end
@implementation UIView (WaitingHUD)
-(void)setHud:(UIView *)hud{
if (self.hud) {
[self.hud removeFromSuperview];
}
objc_setAssociatedObject(self,&hudKey,hud,OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
-(WaitingHUD *)hud{
return objc_getAssociatedObject(self, &hudKey);
}
-(WaitingHUD *)makeHud{
WaitingHUD *hud=[[WaitingHUD alloc] init];
[self addSubview:hud];
self.hud = hud;
CGRect rect;
if (self.superview ) {
rect=[self.superview convertRect:self.frame
toView:[[UIApplication sharedApplication].windows lastObject]];
}else{
rect=self.frame;
}
hud.translatesAutoresizingMaskIntoConstraints=NO;
[self addConstraints:[NSLayoutConstraint
constraintsWithVisualFormat:@"H:|[hud]|"
options:0
metrics:nil
views:NSDictionaryOfVariableBindings(hud)]];
[self addConstraints:[NSLayoutConstraint
constraintsWithVisualFormat:[NSString stringWithFormat:@"V:|-(%.1f)-[hud]|",64-rect.origin.y]
options:0
metrics:nil
views:NSDictionaryOfVariableBindings(hud)]];
((UIView *)[hud.subviews firstObject]).alpha=0;
[UIView animateWithDuration:0.25 animations:^{
((UIView *)[hud.subviews firstObject]).alpha=1.0;
}];
[[UIView topScreen] endEditing:YES];
return hud;
}
-(void)showHUD:(NSString *)message{
WaitingHUD *hud = [self makeHud];
hud.message=message;
[hud startAnimation];
}
-(void)dismissHUDWithImage:(UIImage *)img Message:(NSString *)message Delay:(float)delay{
WaitingHUD *hud=self.hud;
if (!hud) {
return;
}
hud.userInteractionEnabled=false;
hud.message=message;
hud.userImage=img;
[hud->lb_title.superview setNeedsLayout];
[UIView animateWithDuration:0.1 animations:^{
[hud->lb_title.superview layoutIfNeeded];
}];
[UIView animateWithDuration:0.25
delay:delay
options:UIViewAnimationOptionCurveEaseInOut
animations:^{
((UIView *)[hud.subviews firstObject]).alpha=0;
} completion:^(BOOL finished) {
[hud removeFromSuperview];
if(self.hud == hud){
self.hud = nil;
}
}];
}
-(void)dismissHUDWithError:(NSString *)message{
[self dismissHUDWithImage:[UIImage imageNamed:@"hud_error"] Message:message Delay:[UIView timeForDelay:message]];
}
-(void)dismissHUDWithInfo:(NSString *)message{
[self dismissHUDWithImage:[UIImage imageNamed:@"hud_info"] Message:message Delay:[UIView timeForDelay:message]];
}
-(void)dismissHUDWithSuccess:(NSString *)message{
[self dismissHUDWithImage:[UIImage imageNamed:@"hud_success"] Message:message Delay:[UIView timeForDelay:message]];
}
-(void)dismissHUD{
[self dismissHUDWithImage:self.hud.userImage Message:self.hud.message Delay:0.25];
}
+(UIView *) topScreen{
return [[UIApplication sharedApplication].windows firstObject];
}
+(void)showToastImage:(UIImage*)img Message:(NSString *)msg{
WaitingHUD *hud = [[UIView topScreen] makeHud];
hud.message = msg;
hud.userImage = img;
hud.userInteractionEnabled = false;
[UIView animateWithDuration:0.25
delay:[UIView timeForDelay:msg]
options:UIViewAnimationOptionCurveEaseInOut
animations:^{
((UIView *)[hud.subviews firstObject]).alpha=0;
} completion:^(BOOL finished) {
[hud removeFromSuperview];
if([UIView topScreen].hud == hud){
[UIView topScreen].hud = nil;
}
}];
}
+(void)showToastSuccess:(NSString *)msg{
[UIView showToastImage:[UIImage imageNamed:@"hud_success"] Message:msg];
}
+(void)showToastError:(NSString *)msg{
[UIView showToastImage:[UIImage imageNamed:@"hud_error"] Message:msg];
}
+(void)showToastInfo:(NSString *)msg{
[UIView showToastImage:[UIImage imageNamed:@"hud_info"] Message:msg];
}
+(float)timeForDelay:(NSString *) str{
return MIN((CGFloat)str.length * 0.06 + 0.5, 5);
}
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/VC_addBinder.h | C/C++ Header | //
// VC_addBinder.h
// ProxyTester
//
// Created by xzl on 2017/7/12.
// Copyright © 2017年 xzl. All rights reserved.
//
#import <UIKit/UIKit.h>
typedef void(^onAddBinder)(NSDictionary *binderInfo);
@interface VC_addBinder : UIViewController<UITextFieldDelegate>
@property (nonatomic,copy) onAddBinder block;
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/VC_addBinder.m | Objective-C | //
// VC_addBinder.m
// ProxyTester
//
// Created by xzl on 2017/7/12.
// Copyright © 2017年 xzl. All rights reserved.
//
#import "VC_addBinder.h"
#import "Common.h"
#import "NSString+Valid.h"
#import "ProxySDK.h"
#import "WaitingHUD.h"
@interface VC_addBinder ()
@end
@implementation VC_addBinder
{
__weak IBOutlet UITextField *txt_dstUser;
__weak IBOutlet UITextField *txt_dstPort;
__weak IBOutlet UITextField *txt_localPort;
__weak IBOutlet UIView *view_back;
NSDictionary *binderInfo;
}
- (void)viewDidLoad {
[super viewDidLoad];
UITapGestureRecognizer *rec = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(onTap:)];
[self.view addGestureRecognizer:rec];
txt_dstUser.text = [[NSUserDefaults standardUserDefaults] stringForKey:@"dstUser"];
txt_dstPort.text = [[NSUserDefaults standardUserDefaults] stringForKey:@"dstPort"];
txt_localPort.text = [[NSUserDefaults standardUserDefaults] stringForKey:@"localPort"];
}
-(void)onTap:(UITapGestureRecognizer *)rec{
CGPoint pt = [rec locationInView:view_back];
//NSLog(@"%f %f",pt.x,pt.y);
if (pt.x < 0 || pt.y <0 || pt.x > view_back.frame.size.width || pt.y > view_back.frame.size.height) {
[self dismissViewControllerAnimated:YES completion:nil];
}
}
-(BOOL) textFieldShouldReturn:(UITextField *)textField{
if (![textField.text notEmpty]) {
[Common shakeAnimationForView:textField];
return false;
}
if (textField == txt_dstUser) {
[txt_dstPort becomeFirstResponder];
}else if (textField == txt_dstPort){
[txt_localPort becomeFirstResponder];
}else{
[self click_bind:nil];
}
return false;
}
- (IBAction)click_bind:(id)sender {
if (![txt_dstUser.text notEmpty]) {
[Common shakeAnimationForView:txt_dstUser];
return;
}
if (![txt_dstPort.text notEmpty]) {
[Common shakeAnimationForView:txt_dstPort];
return;
}
if (![txt_localPort.text notEmpty]) {
[Common shakeAnimationForView:txt_localPort];
return;
}
[self.view showHUD:@"绑定中..."];
binderInfo = nil;
ProxyBinder *binder = [[ProxyBinder alloc] init];
binder.delegate = (id<ProxyBinderDelegate>)self;
int localPort = [binder bindUser:txt_dstUser.text
dstPort:[txt_dstPort.text intValue]
localPort:[txt_localPort.text intValue]];
if(localPort == -1){
[self.view dismissHUDWithInfo:@"绑定本地端口失败！"];
return;
}
binderInfo = @{@"binder":binder,
@"dstUser":txt_dstUser.text,
@"dstPort":@([txt_dstPort.text intValue]),
@"localPort":@(localPort)};
}
-(void) onBindResult:(NSDictionary *) result binder:(ProxyBinder *) binder{
if ([result[@"code"] intValue] != 0) {
[self.view dismissHUDWithInfo:[NSString stringWithFormat:@"绑定失败:%@",result[@"msg"]]];
return;
}
[self.view dismissHUDWithSuccess:@"绑定成功！"];
[self dismissViewControllerAnimated:YES completion:nil];
[[NSUserDefaults standardUserDefaults] setObject:binderInfo[@"dstUser"] forKey:@"dstUser"];
[[NSUserDefaults standardUserDefaults] setObject:binderInfo[@"dstPort"] forKey:@"dstPort"];
[[NSUserDefaults standardUserDefaults] setObject:binderInfo[@"localPort"] forKey:@"localPort"];
[[NSUserDefaults standardUserDefaults] synchronize];
if (_block) {
_block(binderInfo);
}
}
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/VC_joinRoom.h | C/C++ Header | //
// VC_joinRoom.h
// ProxyTester
//
// Created by xzl on 2018/12/3.
// Copyright © 2018 xzl. All rights reserved.
//
#import <UIKit/UIKit.h>
NS_ASSUME_NONNULL_BEGIN
@interface VC_joinRoom : UIViewController
@end
NS_ASSUME_NONNULL_END
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/VC_joinRoom.m | Objective-C | //
// VC_joinRoom.m
// ProxyTester
//
// Created by xzl on 2018/12/3.
// Copyright © 2018 xzl. All rights reserved.
//
#import "VC_joinRoom.h"
#import "ProxySDK.h"
#import "WaitingHUD.h"
@interface VC_joinRoom ()
@end
@implementation VC_joinRoom
{
__weak IBOutlet UITextField *_txt_room;
}
- (void)viewDidLoad {
[super viewDidLoad];
_txt_room.delegate = (id<UITextFieldDelegate>)self;
// Do any additional setup after loading the view.
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField{
[self onClick_join: nil];
return true;
}
- (IBAction)onClick_join:(id)sender {
[self.view showHUD:@"加入房间..."];
[ProxySDK joinRoom:_txt_room.text withCallBack:^(int code, NSString *message, NSString *obj, NSData *content) {
if(code != 0){
[self.view dismissHUDWithInfo:[NSString stringWithFormat:@"加入房间失败:%@",message]];
return ;
}
[self.view dismissHUD];
[self performSegueWithIdentifier:@"seg_joinSuccess" sender:self];
}];
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/VC_login.h | C/C++ Header | //
// ViewController.h
// ProxyTester
//
// Created by xzl on 2017/7/11.
// Copyright © 2017年 xzl. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface VC_login : UIViewController<UITextFieldDelegate>
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/VC_login.m | Objective-C | //
// ViewController.m
// ProxyTester
//
// Created by xzl on 2017/7/11.
// Copyright © 2017年 xzl. All rights reserved.
//
#import "VC_login.h"
#import "NSString+Valid.h"
#import "Common.h"
#import "ProxySDK.h"
#import "WaitingHUD.h"
@interface VC_login ()
@end
@implementation VC_login
{
__weak IBOutlet UITextField *txt_user;
__weak IBOutlet UISwitch *sw_ssl;
__weak IBOutlet UITextField *txt_passwd;
__weak IBOutlet UITextField *txt_app_id;
__weak IBOutlet UITextField *txt_server;
}
- (void)viewDidLoad {
[super viewDidLoad];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onProxyEvent:) name:kProxyEventLoginResult object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onProxyEvent:) name:kProxyEventShutdown object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onProxyEvent:) name:kProxyEventBinded object:nil];
if([[NSUserDefaults standardUserDefaults] integerForKey:@"txt_port"]){
txt_user.text = [[NSUserDefaults standardUserDefaults] stringForKey:@"txt_user"];
sw_ssl.on = [[NSUserDefaults standardUserDefaults] boolForKey:@"sw_ssl"];
}
}
-(void) onProxyEvent:(NSNotification *) not{
if ([not.name isEqualToString:kProxyEventLoginResult]) {
NSDictionary *dic = not.object;
if ([dic[@"code"] intValue] == 0) {
[self.view dismissHUD];
[self performSegueWithIdentifier:@"seg_showMenu" sender:self];
[[NSUserDefaults standardUserDefaults] setObject:txt_user.text forKey:@"txt_user"];
[[NSUserDefaults standardUserDefaults] setBool:sw_ssl.on forKey:@"sw_ssl"];
[[NSUserDefaults standardUserDefaults] synchronize];
}else{
[self.view dismissHUDWithInfo:dic[@"msg"]];
}
}else if ([not.name isEqualToString:kProxyEventShutdown]) {
NSDictionary *dic = not.object;
[UIView showToastInfo:[NSString stringWithFormat:@"已经掉线:%@,%@",dic[@"code"],dic[@"msg"]]];
[self.navigationController popToRootViewControllerAnimated:YES];
}else if ([not.name isEqualToString:kProxyEventBinded]) {
NSDictionary *dic = not.object;
[UIView showToastSuccess:[NSString stringWithFormat:@"被%@绑定",dic[@"binder"]]];
}
}
-(BOOL) textFieldShouldReturn:(UITextField *)textField{
if (![textField.text notEmpty]) {
[Common shakeAnimationForView:textField];
return false;
}
if (textField == txt_user) {
[self click_login:nil];
}
return true;
}
- (IBAction)click_login:(id)sender {
if(![txt_user.text notEmpty]){
[Common shakeAnimationForView:txt_user];
return;
}
if(![txt_passwd.text notEmpty]){
[Common shakeAnimationForView:txt_passwd];
return;
}
if(![txt_app_id.text notEmpty]){
[Common shakeAnimationForView:txt_app_id];
return;
}
if(![txt_server.text notEmpty]){
[Common shakeAnimationForView:txt_server];
return;
}
[self.view showHUD:@"登录中..."];
@try {
[ProxySDK loginWithSrvUrl:[txt_server.text componentsSeparatedByString:@":"][0]
srvPort:[[txt_server.text componentsSeparatedByString:@":"][1] intValue]
userName:txt_user.text
userInfo:@{@"token": txt_passwd.text,
@"appId": txt_app_id.text}
useSSL:sw_ssl.on];
} @catch (NSException *exception) {
[self.view dismissHUDWithError:exception.description];
}
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/VC_main.h | C/C++ Header | //
// VC_main.h
// ProxyTester
//
// Created by xzl on 2017/7/11.
// Copyright © 2017年 xzl. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface VC_main : UIViewController
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 | |
IOS_Project/ProxyTester/ProxyTester/VC_main.mm | Objective-C++ | //
// VC_main.m
// ProxyTester
//
// Created by xzl on 2017/7/11.
// Copyright © 2017年 xzl. All rights reserved.
//
#import "VC_main.h"
#import "ProxySDK.h"
#import "Proxy.h"
@interface VC_main ()
@end
@implementation VC_main
{
__weak IBOutlet UILabel *lb_speed;
__weak IBOutlet UITextView *txt_log;
NSMutableString *str_log;
}
- (void)viewDidLoad {
[super viewDidLoad];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onProxyEvent:) name:kProxyEventSendSpeed object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onLog:) name:@"onLogOut" object:nil];
str_log = [NSMutableString string];
log_setOnLogOut([](const char *strLog,int iLogLen){
NSString *str = [NSString stringWithUTF8String:strLog];
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:@"onLogOut" object:str];
});
});
}
-(void) onLog:(NSNotification *) notice{
[str_log appendString:(NSString *)notice.object];
txt_log.text = str_log;
}
-(void) dealloc
{
log_setOnLogOut(nullptr);
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
-(void) onProxyEvent:(NSNotification *) notice
{
if ([notice.name isEqualToString:kProxyEventSendSpeed]) {
NSDictionary *dic = notice.object;
lb_speed.text = [NSString stringWithFormat:@"发送速度[%@]:%.2f KB/s",dic[@"dst"],[dic[@"bytesPerSec"] longLongValue] / 1024.0];
}
}
@end
| xia-chu/TcpProxy | 55 | 一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。 | C | xia-chu | 夏楚 |
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