acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_draw_img.h (2571B)
      1 /**
      2  * @file lv_draw_img.h
      3  *
      4  */
      5 
      6 #ifndef LV_DRAW_IMG_H
      7 #define LV_DRAW_IMG_H
      8 
      9 #ifdef __cplusplus
     10 extern "C" {
     11 #endif
     12 
     13 /*********************
     14  *      INCLUDES
     15  *********************/
     16 #include "lv_img_decoder.h"
     17 #include "lv_img_buf.h"
     18 #include "../misc/lv_style.h"
     19 
     20 /*********************
     21  *      DEFINES
     22  *********************/
     23 
     24 /**********************
     25  *      MACROS
     26  **********************/
     27 
     28 /**********************
     29  *      TYPEDEFS
     30  **********************/
     31 
     32 typedef struct {
     33 
     34     uint16_t angle;
     35     uint16_t zoom;
     36     lv_point_t pivot;
     37 
     38     lv_color_t recolor;
     39     lv_opa_t recolor_opa;
     40 
     41     lv_opa_t opa;
     42     lv_blend_mode_t blend_mode : 4;
     43 
     44     int32_t frame_id;
     45     uint8_t antialias       : 1;
     46 } lv_draw_img_dsc_t;
     47 
     48 struct _lv_draw_ctx_t;
     49 
     50 /**********************
     51  * GLOBAL PROTOTYPES
     52  **********************/
     53 
     54 void lv_draw_img_dsc_init(lv_draw_img_dsc_t * dsc);
     55 /**
     56  * Draw an image
     57  * @param coords the coordinates of the image
     58  * @param mask the image will be drawn only in this area
     59  * @param src pointer to a lv_color_t array which contains the pixels of the image
     60  * @param dsc pointer to an initialized `lv_draw_img_dsc_t` variable
     61  */
     62 void lv_draw_img(struct _lv_draw_ctx_t * draw_ctx, const lv_draw_img_dsc_t * dsc, const lv_area_t * coords,
     63                  const void * src);
     64 
     65 
     66 void lv_draw_img_decoded(struct _lv_draw_ctx_t * draw_ctx, const lv_draw_img_dsc_t * dsc,
     67                          const lv_area_t * coords, const uint8_t * map_p, lv_img_cf_t color_format);
     68 
     69 /**
     70  * Get the type of an image source
     71  * @param src pointer to an image source:
     72  *  - pointer to an 'lv_img_t' variable (image stored internally and compiled into the code)
     73  *  - a path to a file (e.g. "S:/folder/image.bin")
     74  *  - or a symbol (e.g. LV_SYMBOL_CLOSE)
     75  * @return type of the image source LV_IMG_SRC_VARIABLE/FILE/SYMBOL/UNKNOWN
     76  */
     77 lv_img_src_t lv_img_src_get_type(const void * src);
     78 
     79 /**
     80  * Get the pixel size of a color format in bits
     81  * @param cf a color format (`LV_IMG_CF_...`)
     82  * @return the pixel size in bits
     83  */
     84 uint8_t lv_img_cf_get_px_size(lv_img_cf_t cf);
     85 
     86 /**
     87  * Check if a color format is chroma keyed or not
     88  * @param cf a color format (`LV_IMG_CF_...`)
     89  * @return true: chroma keyed; false: not chroma keyed
     90  */
     91 bool lv_img_cf_is_chroma_keyed(lv_img_cf_t cf);
     92 
     93 /**
     94  * Check if a color format has alpha channel or not
     95  * @param cf a color format (`LV_IMG_CF_...`)
     96  * @return true: has alpha channel; false: doesn't have alpha channel
     97  */
     98 bool lv_img_cf_has_alpha(lv_img_cf_t cf);
     99 
    100 #ifdef __cplusplus
    101 } /*extern "C"*/
    102 #endif
    103 
    104 #endif /*LV_DRAW_IMG_H*/