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twn_textures.c: handle RGB image files

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This commit is contained in:
veclav talica 2024-09-23 14:35:46 +03:00
parent c8469e9416
commit e093a6d492
2 changed files with 5 additions and 2 deletions
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3
src/rendering/twn_gl_15_gpu_texture.c
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@ -41,6 +41,9 @@ void upload_gpu_texture(gpu_texture texture, void *pixels, int channels, int wid
if (channels == 4) {
format_internal = GL_RGBA8;
format = GL_RGBA;
} else if (channels == 3) {
format_internal = GL_RGBA8;
format = GL_RGB;
} else if (channels == 1) {
format_internal = GL_ALPHA;
format = GL_ALPHA;

4
src/twn_textures.c
View File

@ -34,7 +34,7 @@ static SDL_Surface *image_to_surface(const char *path) {
goto ERR_CANNOT_ALLOCATE_MEM;
int width, height, channels;
void *image_mem = stbi_load_from_memory(file_mem, (int)file_size, &width, &height, &channels, 4);
void *image_mem = stbi_load_from_memory(file_mem, (int)file_size, &width, &height, &channels, 0);
if (!image_mem)
goto ERR_CANNOT_READ_IMAGE;
@ -123,7 +123,7 @@ static void add_new_atlas(struct texture_cache *cache) {
static void upload_texture_from_surface(gpu_texture texture, SDL_Surface *surface) {
SDL_LockSurface(surface);
upload_gpu_texture(texture, surface->pixels, 4, surface->w, surface->h);
upload_gpu_texture(texture, surface->pixels, surface->format->BytesPerPixel, surface->w, surface->h);
SDL_UnlockSurface(surface);
}