lv_draw_layer.h

Go to the documentation of this file.

 
#ifndef LV_DRAW_LAYER_H
#define LV_DRAW_LAYER_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*********************
 *      INCLUDES
 *********************/
#include "../lv_conf_internal.h"
 
/*********************
 *      DEFINES
 *********************/
 
/**********************
 *      TYPEDEFS
 **********************/
struct _lv_draw_ctx_t;
struct _lv_draw_layer_ctx_t;
 
typedef enum {
    LV_DRAW_LAYER_FLAG_NONE,
    LV_DRAW_LAYER_FLAG_HAS_ALPHA,
    LV_DRAW_LAYER_FLAG_CAN_SUBDIVIDE,
} lv_draw_layer_flags_t;
 
/**********************
 * GLOBAL PROTOTYPES
 **********************/
 
struct _lv_draw_layer_ctx_t * lv_draw_layer_create(struct _lv_draw_ctx_t * draw_ctx, const lv_area_t * layer_area,
                                                   lv_draw_layer_flags_t flags);
 
void lv_draw_layer_adjust(struct _lv_draw_ctx_t * draw_ctx, struct _lv_draw_layer_ctx_t * layer_ctx,
                          lv_draw_layer_flags_t flags);
 
void lv_draw_layer_blend(struct _lv_draw_ctx_t * draw_ctx, struct _lv_draw_layer_ctx_t * layer_ctx,
                         lv_draw_img_dsc_t * draw_dsc);
 
void lv_draw_layer_destroy(struct _lv_draw_ctx_t * draw_ctx, struct _lv_draw_layer_ctx_t * layer_ctx);
 
/**********************
 *      MACROS
 **********************/
 
#ifdef __cplusplus
} /*extern "C"*/
#endif
 
#endif /*LV_DRAW_LAYER_H*/