File size: 2,257 Bytes
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* Copyright 2023 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <assert.h>
#include <string.h>
#include <emscripten/html5.h>
#include "emscripten_internal.h"
typedef bool (*event_callback)(int event_type, void * _Nonnull event_data, void *user_data);
typedef struct callback_args_t {
event_callback callback;
int event_type;
void *user_data;
uint8_t event_data[];
} callback_args_t;
static void do_callback(void* arg) {
callback_args_t* args = (callback_args_t*)arg;
args->callback(args->event_type, args->event_data, args->user_data);
free(arg);
}
void _emscripten_run_callback_on_thread(pthread_t t,
event_callback f,
int event_type,
void* event_data,
size_t event_data_size,
void* user_data) {
em_proxying_queue* q = emscripten_proxy_get_system_queue();
callback_args_t* arg = malloc(sizeof(callback_args_t) + event_data_size);
arg->callback = f;
arg->event_type = event_type;
arg->user_data = user_data;
memcpy(arg->event_data, event_data, event_data_size);
if (!emscripten_proxy_async(q, t, do_callback, arg)) {
assert(false && "emscripten_proxy_async failed");
}
}
static EMSCRIPTEN_RESULT _get_last_event(void* out, void *latest, size_t len) {
if (!latest) {
return EMSCRIPTEN_RESULT_NO_DATA;
}
memcpy(out, latest, len);
return EMSCRIPTEN_RESULT_SUCCESS;
}
EMSCRIPTEN_RESULT emscripten_get_deviceorientation_status(EmscriptenDeviceOrientationEvent *out) {
return _get_last_event(out, _emscripten_get_last_deviceorientation_event(), sizeof(*out));
}
EMSCRIPTEN_RESULT emscripten_get_devicemotion_status(EmscriptenDeviceMotionEvent *out) {
return _get_last_event(out, _emscripten_get_last_devicemotion_event(), sizeof(*out));
}
EMSCRIPTEN_RESULT emscripten_get_mouse_status(EmscriptenMouseEvent *out) {
return _get_last_event(out, _emscripten_get_last_mouse_event(), sizeof(*out));
}
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