Initial commit

include/liblvgl/draw/sdl/lv_draw_sdl_texture_cache.h

@@ -0,0 +1,102 @@
+/**
+ * @file lv_draw_sdl_texture_cache.h
+ *
+ */
+
+#ifndef LV_DRAW_SDL_TEXTURE_CACHE_H
+#define LV_DRAW_SDL_TEXTURE_CACHE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+
+#include "liblvgl/lv_conf_internal.h"
+
+#if LV_USE_GPU_SDL
+
+#include LV_GPU_SDL_INCLUDE_PATH
+#include "lv_draw_sdl.h"
+#include "lv_draw_sdl_priv.h"
+#include "../../draw/lv_img_decoder.h"
+#include "../../misc/lv_area.h"
+
+/*********************
+ *      DEFINES
+ *********************/
+
+#define LV_DRAW_SDL_DEC_DSC_TEXTURE_HEAD "@LVSDLTex"
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+typedef struct {
+    char head[8];
+    SDL_Texture * texture;
+    SDL_Rect rect;
+    bool texture_managed;
+    bool texture_referenced;
+} lv_draw_sdl_dec_dsc_userdata_t;
+
+typedef enum {
+    LV_GPU_CACHE_KEY_MAGIC_ARC = 0x01,
+    LV_GPU_CACHE_KEY_MAGIC_IMG = 0x11,
+    LV_GPU_CACHE_KEY_MAGIC_IMG_ROUNDED_CORNERS = 0x12,
+    LV_GPU_CACHE_KEY_MAGIC_LINE = 0x21,
+    LV_GPU_CACHE_KEY_MAGIC_RECT_BG = 0x31,
+    LV_GPU_CACHE_KEY_MAGIC_RECT_SHADOW = 0x32,
+    LV_GPU_CACHE_KEY_MAGIC_RECT_BORDER = 0x33,
+    LV_GPU_CACHE_KEY_MAGIC_FONT_GLYPH = 0x41,
+    LV_GPU_CACHE_KEY_MAGIC_MASK = 0x51,
+} lv_sdl_cache_key_magic_t;
+
+typedef enum {
+    LV_DRAW_SDL_CACHE_FLAG_NONE = 0,
+    LV_DRAW_SDL_CACHE_FLAG_MANAGED = 1,
+} lv_draw_sdl_cache_flag_t;
+
+typedef struct {
+    lv_sdl_cache_key_magic_t magic;
+    lv_img_src_t type;
+    int32_t frame_id;
+} lv_draw_sdl_cache_key_head_img_t;
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+void lv_draw_sdl_texture_cache_init(lv_draw_sdl_ctx_t * ctx);
+
+void lv_draw_sdl_texture_cache_deinit(lv_draw_sdl_ctx_t * ctx);
+
+/**
+ * Find cached texture by key. The texture can be destroyed during usage.
+ */
+SDL_Texture * lv_draw_sdl_texture_cache_get(lv_draw_sdl_ctx_t * ctx, const void * key, size_t key_length, bool * found);
+
+SDL_Texture * lv_draw_sdl_texture_cache_get_with_userdata(lv_draw_sdl_ctx_t * ctx, const void * key, size_t key_length,
+                                                          bool * found, void ** userdata);
+
+void lv_draw_sdl_texture_cache_put(lv_draw_sdl_ctx_t * ctx, const void * key, size_t key_length, SDL_Texture * texture);
+
+void lv_draw_sdl_texture_cache_put_advanced(lv_draw_sdl_ctx_t * ctx, const void * key, size_t key_length,
+                                            SDL_Texture * texture, void * userdata, void userdata_free(void *),
+                                            lv_draw_sdl_cache_flag_t flags);
+
+lv_draw_sdl_cache_key_head_img_t * lv_draw_sdl_texture_img_key_create(const void * src, int32_t frame_id,
+                                                                      size_t * size);
+
+/**********************
+ *      MACROS
+ **********************/
+#endif /*LV_USE_GPU_SDL*/
+
+#ifdef __cplusplus
+} /*extern "C"*/
+#endif
+
+#endif /*LV_DRAW_SDL_TEXTURE_CACHE_H*/