github-code/lvgl
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat(draw_buf): distinguish between lv_image_dsc_t and lv_draw_buf_t (#5496)

Browse Source 
Signed-off-by: Xu Xingliang <xuxingliang@xiaomi.com>
Signed-off-by: Neo Xu <neo.xu1990@gmail.com>
This commit is contained in:
Neo Xu
2024-02-18 10:52:50 +08:00
committed by GitHub
parent fa9142ef36
commit bd119043a1
15 changed files with 151 additions and 205 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
src/draw/lv_draw_buf.c
View File

@@ -172,7 +172,14 @@ lv_result_t lv_draw_buf_init(lv_draw_buf_t * draw_buf, uint32_t w, uint32_t h, l
return LV_RESULT_INVALID;
}
lv_image_header_init(&draw_buf->header, w, h, cf, stride, 0);
lv_image_header_t * header = &draw_buf->header;
header->w = w;
header->h = h;
header->cf = cf;
header->stride = stride;
header->flags = 0;
header->magic = LV_IMAGE_HEADER_MAGIC;
draw_buf->data = lv_draw_buf_align(data, cf);
draw_buf->unaligned_data = data;
draw_buf->data_size = data_size;
@@ -272,8 +279,7 @@ void * lv_draw_buf_goto_xy(const lv_draw_buf_t * buf, uint32_t x, uint32_t y)
LV_ASSERT_NULL(buf);
if(buf == NULL) return NULL;
uint8_t * data = buf->data;
data += buf->header.stride * y;
uint8_t * data = buf->data + buf->header.stride * y;
if(x == 0)
return data;
@@ -416,6 +422,20 @@ lv_result_t lv_draw_buf_premultiply(lv_draw_buf_t * draw_buf)
return LV_RESULT_OK;
}
void lv_draw_buf_set_palette(lv_draw_buf_t * draw_buf, uint8_t index, lv_color32_t color)
{
LV_ASSERT_NULL(draw_buf);
if(draw_buf == NULL) return;
if(!LV_COLOR_FORMAT_IS_INDEXED(draw_buf->header.cf)) {
LV_LOG_WARN("Not indexed color format");
return;
}
uint8_t * buf = (uint8_t *)draw_buf->data;
lv_memcpy(&buf[index * sizeof(color)], &color, sizeof(color));
}
/**********************
* STATIC FUNCTIONS
**********************/