File size: 2,995 Bytes
fb6457c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 | #include "allocator.h"
#include <stdlib.h>
#include <string.h>
aligned_buffer_t* buffer_allocate(size_t size, size_t alignment) {
if (size == 0 || alignment == 0) return NULL;
aligned_buffer_t* buf = (aligned_buffer_t*)malloc(sizeof(aligned_buffer_t));
if (!buf) return NULL;
size_t total = size + alignment - 1;
void* raw = malloc(total);
if (!raw) {
free(buf);
return NULL;
}
uintptr_t addr = (uintptr_t)raw;
uintptr_t aligned_addr = (addr + alignment - 1) & ~(alignment - 1);
buf->ptr = (void*)aligned_addr;
buf->size = size;
buf->alignment = alignment;
buf->is_aligned = true;
return buf;
}
void buffer_free(aligned_buffer_t* buf) {
if (buf) {
if (buf->ptr) free(buf->ptr);
free(buf);
}
}
void* buffer_ptr(aligned_buffer_t* buf) {
return buf ? buf->ptr : NULL;
}
bool buffer_is_aligned(aligned_buffer_t* buf, size_t required_alignment) {
if (!buf) return false;
return (uintptr_t)buf->ptr % required_alignment == 0;
}
matrix_t* matrix_allocate(size_t rows, size_t cols, size_t alignment) {
if (rows == 0 || cols == 0 || alignment == 0) return NULL;
if (alignment < 32) alignment = 32;
size_t total_elements = rows * cols;
if (total_elements / rows != cols) return NULL;
size_t bytes = total_elements * sizeof(float);
matrix_t* mat = (matrix_t*)malloc(sizeof(matrix_t));
if (!mat) return NULL;
size_t total_alloc = bytes + alignment - 1;
void* raw = malloc(total_alloc);
if (!raw) {
free(mat);
return NULL;
}
uintptr_t addr = (uintptr_t)raw;
uintptr_t aligned_addr = (addr + alignment - 1) & ~(alignment - 1);
mat->data = (float*)aligned_addr;
mat->rows = rows;
mat->cols = cols;
mat->stride = cols;
mat->alignment = alignment;
mat->owns_data = true;
memset(mat->data, 0, bytes);
return mat;
}
void matrix_free(matrix_t* mat) {
if (mat) {
if (mat->owns_data && mat->data) {
free(mat->data);
}
free(mat);
}
}
float* matrix_ptr(matrix_t* mat) {
return mat ? mat->data : NULL;
}
float matrix_get(const matrix_t* mat, size_t i, size_t j) {
if (!mat || i >= mat->rows || j >= mat->cols) return 0.0f;
return mat->data[i * mat->stride + j];
}
void matrix_set(matrix_t* mat, size_t i, size_t j, float val) {
if (!mat || i >= mat->rows || j >= mat->cols) return;
mat->data[i * mat->stride + j] = val;
}
void matrix_zero(matrix_t* mat) {
if (!mat) return;
memset(mat->data, 0, mat->rows * mat->stride * sizeof(float));
}
void matrix_fill(matrix_t* mat, float val) {
if (!mat) return;
for (size_t i = 0; i < mat->rows * mat->stride; i++) {
mat->data[i] = val;
}
}
void matrix_copy(const matrix_t* src, matrix_t* dst) {
if (!src || !dst || src->rows != dst->rows || src->cols != dst->cols) return;
memcpy(dst->data, src->data, src->rows * src->stride * sizeof(float));
}
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