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perf(draw) speed up additive blending

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This commit is contained in:
Gabor Kiss-Vamosi 2021-06-15 19:32:25 +02:00
parent 918d94801f
commit 3abe517abf
1 changed files with 15 additions and 5 deletions
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20
src/draw/lv_draw_blend.c
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@ -933,7 +933,13 @@ static void map_blended(const lv_area_t * disp_area, lv_color_t * disp_buf, con
for(y = draw_area->y1; y <= draw_area->y2; y++) {
for(x = draw_area->x1; x <= draw_area->x2; x++) {
disp_buf_tmp[x] = blend_fp(map_buf_tmp[x], disp_buf_tmp[x], opa);
#if LV_COLOR_DEPTH == 32
if(map_buf_tmp[x].full != 0xff000000) {
#else
if(map_buf_tmp[x].full != 0) {
#endif
disp_buf_tmp[x] = blend_fp(map_buf_tmp[x], disp_buf_tmp[x], opa);
}
}
disp_buf_tmp += disp_w;
map_buf_tmp += map_w;
@ -951,7 +957,14 @@ static void map_blended(const lv_area_t * disp_area, lv_color_t * disp_buf, con
for(x = draw_area->x1; x <= draw_area->x2; x++) {
if(mask_tmp[x] == 0) continue;
lv_opa_t opa_tmp = mask_tmp[x] >= LV_OPA_MAX ? opa : ((opa * mask_tmp[x]) >> 8);
disp_buf_tmp[x] = blend_fp(map_buf_tmp[x], disp_buf_tmp[x], opa_tmp);
#if LV_COLOR_DEPTH == 32
if(map_buf_tmp[x].full != 0xff000000) {
#else
if(map_buf_tmp[x].full != 0) {
#endif
disp_buf_tmp[x] = blend_fp(map_buf_tmp[x], disp_buf_tmp[x], opa_tmp);
}
}
disp_buf_tmp += disp_w;
mask_tmp += draw_area_w;
@ -962,9 +975,6 @@ static void map_blended(const lv_area_t * disp_area, lv_color_t * disp_buf, con
static inline lv_color_t color_blend_true_color_additive(lv_color_t fg, lv_color_t bg, lv_opa_t opa)
{
if(opa <= LV_OPA_MIN) return bg;
uint32_t tmp;
#if LV_COLOR_DEPTH == 1
tmp = bg.full + fg.full;