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add lv_draw_px

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This commit is contained in:
Gabor Kiss-Vamosi 2019-11-05 06:29:53 +01:00
parent e45d083436
commit 2a25ddd0a2
2 changed files with 41 additions and 0 deletions
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32
src/lv_draw/lv_draw_rect.c
View File

@ -61,6 +61,38 @@ void lv_draw_rect(const lv_area_t * coords, const lv_area_t * clip, const lv_sty
draw_border(coords, clip, style, opa_scale);
}
/**
* Draw a pixel
* @param point the coordinates of the point to draw
* @param mask the pixel will be drawn only in this mask
* @param style pointer to a style
* @param opa_scale scale down the opacity by the factor
*/
void lv_draw_px(const lv_point_t * point, const lv_area_t * clip_area, const lv_style_t * style, lv_opa_t opa_scale)
{
lv_opa_t opa = style->body.opa;
if(opa_scale != LV_OPA_COVER) opa = (opa * opa_scale) >> 8;
if(opa > LV_OPA_MAX) opa = LV_OPA_COVER;
lv_area_t fill_area;
fill_area.x1 = point->x;
fill_area.y1 = point->y;
fill_area.x2 = point->x;
fill_area.y2 = point->y;
uint8_t mask_cnt = lv_draw_mask_get_cnt();
if(mask_cnt == 0) {
lv_blend_fill(clip_area, &fill_area, style->body.main_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, style->body.blend_mode);
} else {
uint8_t mask_buf;
lv_draw_mask_res_t mask_res;
mask_res = lv_draw_mask_apply(&mask_buf, point->x, point->y, 1);
lv_blend_fill(clip_area, &fill_area, style->body.main_color, &mask_buf, mask_res, opa, style->body.blend_mode);
}
}
/**********************
* STATIC FUNCTIONS
**********************/

9
src/lv_draw/lv_draw_rect.h
View File

@ -36,6 +36,15 @@ extern "C" {
*/
void lv_draw_rect(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale);
/**
* Draw a pixel
* @param point the coordinates of the point to draw
* @param mask the pixel will be drawn only in this mask
* @param style pointer to a style
* @param opa_scale scale down the opacity by the factor
*/
void lv_draw_px(const lv_point_t * point, const lv_area_t * clip_area, const lv_style_t * style, lv_opa_t opa_scale);
/**********************
* MACROS
**********************/