Canithesis/allegro_qoi
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add a readme

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This commit is contained in:
Brett Bergstrom
2025-09-07 22:40:06 -05:00
parent ba8acc79f3
commit 32179abb48
8 changed files with 27 additions and 6 deletions
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8
allegro_qoi.c
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@@ -14,6 +14,7 @@ extern "C" {
ALLEGRO_BITMAP* _al_load_qoi_f(ALLEGRO_FILE* file, int flags) {
qoi_desc meta;
ALLEGRO_PIXEL_FORMAT fmt;
uint8_t* file_bytes = malloc(al_fsize(file));
memset(file_bytes, 0, al_fsize(file));
void* file_pos = file_bytes;
@@ -27,10 +28,15 @@ ALLEGRO_BITMAP* _al_load_qoi_f(ALLEGRO_FILE* file, int flags) {
int oldflags = al_get_new_bitmap_flags();
al_set_new_bitmap_flags(flags);
switch (meta.channels) {
case 3: fmt = ALLEGRO_PIXEL_FORMAT_BGR_888; break;
case 4: fmt = ALLEGRO_PIXEL_FORMAT_ABGR_8888; break;
default: free(data); return NULL; break;
}
ALLEGRO_BITMAP* bmp = al_create_bitmap(meta.width, meta.height);
ALLEGRO_LOCKED_REGION* lock = al_lock_bitmap(
bmp,
ALLEGRO_PIXEL_FORMAT_ABGR_8888,
fmt,
ALLEGRO_LOCK_WRITEONLY
);
al_set_new_bitmap_flags(oldflags);