acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_draw_sw_blend.h (2067B)
      1 /**
      2  * @file lv_draw_sw_blend.h
      3  *
      4  */
      5 
      6 #ifndef LV_DRAW_SW_BLEND_H
      7 #define LV_DRAW_SW_BLEND_H
      8 
      9 #ifdef __cplusplus
     10 extern "C" {
     11 #endif
     12 
     13 /*********************
     14  *      INCLUDES
     15  *********************/
     16 #include "../../misc/lv_color.h"
     17 #include "../../misc/lv_area.h"
     18 #include "../../misc/lv_style.h"
     19 #include "../lv_draw_mask.h"
     20 
     21 /*********************
     22  *      DEFINES
     23  *********************/
     24 
     25 /**********************
     26  *      TYPEDEFS
     27  **********************/
     28 
     29 typedef struct {
     30     const lv_area_t * blend_area;   /**< The area with absolute coordinates to draw on `draw_ctx->buf`
     31                                      *   will be clipped to `draw_ctx->clip_area` */
     32     const lv_color_t * src_buf;     /**< Pointer to an image to blend. If set `fill_color` is ignored */
     33     lv_color_t color;               /**< Fill color*/
     34     lv_opa_t * mask_buf;            /**< NULL if ignored, or an alpha mask to apply on `blend_area`*/
     35     lv_draw_mask_res_t mask_res;    /**< The result of the previous mask operation */
     36     const lv_area_t * mask_area;    /**< The area of `mask_buf` with absolute coordinates*/
     37     lv_opa_t opa;                   /**< The overall opacity*/
     38     lv_blend_mode_t blend_mode;     /**< E.g. LV_BLEND_MODE_ADDITIVE*/
     39 } lv_draw_sw_blend_dsc_t;
     40 
     41 struct _lv_draw_ctx_t;
     42 
     43 /**********************
     44  * GLOBAL PROTOTYPES
     45  **********************/
     46 
     47 /**
     48  * Call the blend function of the `draw_ctx`.
     49  * @param draw_ctx      pointer to a draw context
     50  * @param dsc           pointer to an initialized blend descriptor
     51  */
     52 void lv_draw_sw_blend(struct _lv_draw_ctx_t * draw_ctx, const lv_draw_sw_blend_dsc_t * dsc);
     53 
     54 /**
     55  * The basic blend function used with software rendering.
     56  * @param draw_ctx      pointer to a draw context
     57  * @param dsc           pointer to an initialized blend descriptor
     58  */
     59 LV_ATTRIBUTE_FAST_MEM void lv_draw_sw_blend_basic(struct _lv_draw_ctx_t * draw_ctx, const lv_draw_sw_blend_dsc_t * dsc);
     60 
     61 /**********************
     62  *      MACROS
     63  **********************/
     64 
     65 #ifdef __cplusplus
     66 } /*extern "C"*/
     67 #endif
     68 
     69 #endif /*LV_DRAW_SW_BLEND_H*/