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refactor(draw_buf): update buf clear and copy API

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Gabor Kiss-Vamosi
2023-10-19 11:31:03 +02:00
parent 74ca34c8de
commit 6a7d2e651c
4 changed files with 85 additions and 45 deletions
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37
src/draw/lv_draw_buf.h
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@@ -38,10 +38,13 @@ typedef uint32_t (*lv_draw_buf_width_to_stride_cb)(uint32_t w, lv_color_format_t
typedef void * (*lv_draw_buf_go_to_xy_cb)(const void * buf, uint32_t stride, lv_color_format_t color_format,
lv_coord_t x, lv_coord_t y);
typedef void (*lv_draw_buf_clear_cb)(void * buf, uint32_t stride, lv_color_format_t color_format, const lv_area_t * a);
typedef void (*lv_draw_buf_clear_cb)(void * buf, uint32_t w, uint32_t h, lv_color_format_t color_format,
const lv_area_t * a);
typedef void (*lv_draw_buf_copy_cb)(void * dest_buf, uint32_t dest_stride, const lv_area_t * dest_area,
void * src_buf, uint32_t src_stride, const lv_area_t * src_area, lv_color_format_t color_format);
typedef void (*lv_draw_buf_copy_cb)(void * dest_buf, uint32_t dest_w, uint32_t dest_h,
const lv_area_t * dest_area_to_copy,
void * src_buf, uint32_t src_w, uint32_t src_h, const lv_area_t * src_area_to_copy,
lv_color_format_t color_format);
typedef struct {
lv_draw_buf_malloc_cb buf_malloc_cb;
@@ -126,25 +129,29 @@ void * lv_draw_buf_go_to_xy(const void * buf, uint32_t stride, lv_color_format_t
/**
* Clear an area on the buffer
* @param draw_buf pointer to draw buffer
* @param stride stride of the buffer
* @param w width of the buffer
* @param h height of the buffer
* @param color_format color format of the buffer
* @param a the area to clear, or NULL to clear the whole buffer
*/
void lv_draw_buf_clear(void * buf, uint32_t stride, lv_color_format_t color_format, const lv_area_t * a);
void lv_draw_buf_clear(void * buf, uint32_t w, uint32_t h, lv_color_format_t color_format, const lv_area_t * a);
/**
* Copy an area from a buffer to an other
* @param dest_buf pointer to the destination buffer (not draw_buf)
* @param dest_stride the stride of the destination buffer in bytes
* @param dest_area pointer to the destination area
* @param src_buf pointer to the source buffer (not draw_buf)
* @param src_stride the stride of the source buffer in bytes
* @param src_area pointer to the source area
* @param color_format the color format (should be the same for the source and destination)
* @param dest_buf pointer to the destination buffer)
* @param dest_w width of the destination buffer in pixels
* @param dest_h height of the destination buffer in pixels
* @param dest_area_to_copy the area to copy from the destination buffer
* @param src_buf pointer to the source buffer
* @param src_w width of the source buffer in pixels
* @param src_h height of the source buffer in pixels
* @param src_area_to_copy the area to copy from the destination buffer
* @param color_format the color format, should be the same for both buffers
* @note `dest_area_to_copy` and `src_area_to_copy` should have the same width and height
*/
void lv_draw_buf_copy(void * dest_buf, uint32_t dest_stride, const lv_area_t * dest_area,
void * src_buf, uint32_t src_stride, const lv_area_t * src_area, lv_color_format_t color_format);
void lv_draw_buf_copy(void * dest_buf, uint32_t dest_w, uint32_t dest_h, const lv_area_t * dest_area_to_copy,
void * src_buf, uint32_t src_w, uint32_t src_h, const lv_area_t * src_area_to_copy,
lv_color_format_t color_format);
/**********************
* MACROS
**********************/