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feat(draw_buf): add color_format paramater to draw_buf_malloc and align

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related to https://github.com/lvgl/lvgl/pull/4414#issuecomment-1707725195
This commit is contained in:
Gabor Kiss-Vamosi
2023-09-06 12:14:00 +02:00
parent 8d6c24b40d
commit 4068c079a2
4 changed files with 29 additions and 22 deletions
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14
src/draw/lv_draw_buf.h
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@@ -36,11 +36,11 @@ typedef struct {
typedef void (*lv_draw_buf_init_cb)(lv_draw_buf_t * draw_buf, lv_coord_t w, lv_coord_t h,
lv_color_format_t color_format);
typedef void * (*lv_draw_buf_malloc_cb)(size_t size);
typedef void * (*lv_draw_buf_malloc_cb)(size_t size, lv_color_format_t color_format);
typedef void (*lv_draw_buf_free_cb)(void * draw_buf);
typedef void * (*lv_draw_buf_align_buf_cb)(void * buf);
typedef void * (*lv_draw_buf_align_buf_cb)(void * buf, lv_color_format_t color_format);
typedef void (*lv_draw_buf_invalidate_cache_cb)(lv_draw_buf_t * draw_buf, const char * area);
@@ -103,12 +103,13 @@ void lv_draw_buf_init_alloc(lv_draw_buf_t * draw_buf, lv_coord_t w, lv_coord_t h
/**
* Allocate a buffer with the given size. It might allocate slightly larger buffer to fulfill the alignment requirements.
* @param size the size to allocate in bytes
* @param the allocated buffer.
* @param size the size to allocate in bytes
* @param color_format the color format of the buffer to allcoate
* @return the allocated buffer.
* @note The returned value can be saved in draw_buf->buf
* @note lv_draw_buf_align_buf can be sued the align the returned pointer
*/
void * lv_draw_buf_malloc(size_t size);
void * lv_draw_buf_malloc(size_t size_bytes, lv_color_format_t color_format);
/**
* Free a buffer allocated by lv_draw_buf_malloc
@@ -119,9 +120,10 @@ void lv_draw_buf_free(void * buf);
/**
* Align the address of a buffer. The buffer needs to be large enough for the real data after alignement
* @param buf the data to align
* @param color_format the color format of the buffer
* @return the aligned buffer
*/
void * lv_draw_buf_align_buf(void * buf);
void * lv_draw_buf_align_buf(void * buf, lv_color_format_t color_format);
/**
* Get the buffer of the draw_buf.