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rendering.c: batching for sprites (blended vs unblended), separation of rendering submodules; textures.c: textures_get_atlas_id()

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veclav talica
2024-07-27 15:10:19 +03:00
parent 32b83d68ac
commit dfde000a3a
9 changed files with 609 additions and 356 deletions
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7
src/textures.h
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@@ -8,10 +8,10 @@
#include <glad/glad.h>
/* type safe structure for persistent texture handles */
typedef struct { int id; } t_texture_key;
typedef struct { uint16_t id; } t_texture_key;
/* tests whether given key structure corresponds to any texture */
#define m_texture_key_is_valid(p_key) ((p_key).id != -1)
#define m_texture_key_is_valid(p_key) ((p_key).id != (uint16_t)-1)
void textures_cache_init(struct texture_cache *cache, SDL_Window *window);
void textures_cache_deinit(struct texture_cache *cache);
@@ -39,6 +39,9 @@ t_rect textures_get_srcrect(const struct texture_cache *cache, t_texture_key key
/* returns a rect of dimensions of the whole texture (whole atlas) */
t_rect textures_get_dims(const struct texture_cache *cache, t_texture_key key);
/* returns an identifier that is equal for all textures placed in the same atlas */
int32_t textures_get_atlas_id(const struct texture_cache *cache, t_texture_key key);
/* binds atlas texture in opengl state */
void textures_bind(const struct texture_cache *cache, t_texture_key key, GLenum target);