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fix(color) fox color premult precision with 16 bit color depth

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This commit is contained in:
Gabor Kiss-Vamosi 2021-09-02 13:41:30 +02:00
parent 4250e3c627
commit f3342269f2
1 changed files with 1 additions and 6 deletions
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7
src/misc/lv_color.h
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@ -512,12 +512,7 @@ LV_ATTRIBUTE_FAST_MEM static inline void lv_color_premult(lv_color_t c, uint8_t
LV_ATTRIBUTE_FAST_MEM static inline lv_color_t lv_color_mix_premult(uint16_t * premult_c1, lv_color_t c2, uint8_t mix) LV_ATTRIBUTE_FAST_MEM static inline lv_color_t lv_color_mix_premult(uint16_t * premult_c1, lv_color_t c2, uint8_t mix)
{ {
lv_color_t ret; lv_color_t ret;
#if LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP == 0 #if LV_COLOR_DEPTH != 1
/*For compatibility with lv_color_mix on 16 bit color depth*/
LV_COLOR_SET_R(ret, (premult_c1[0] + LV_COLOR_GET_R(c2) * mix) >> 8);
LV_COLOR_SET_G(ret, (premult_c1[1] + LV_COLOR_GET_G(c2) * mix) >> 8);
LV_COLOR_SET_B(ret, (premult_c1[2] + LV_COLOR_GET_B(c2) * mix) >> 8);
#elif LV_COLOR_DEPTH != 1
/*LV_COLOR_DEPTH == 8 or 32*/ /*LV_COLOR_DEPTH == 8 or 32*/
LV_COLOR_SET_R(ret, LV_UDIV255(premult_c1[0] + LV_COLOR_GET_R(c2) * mix + LV_COLOR_MIX_ROUND_OFS)); LV_COLOR_SET_R(ret, LV_UDIV255(premult_c1[0] + LV_COLOR_GET_R(c2) * mix + LV_COLOR_MIX_ROUND_OFS));
LV_COLOR_SET_G(ret, LV_UDIV255(premult_c1[1] + LV_COLOR_GET_G(c2) * mix + LV_COLOR_MIX_ROUND_OFS)); LV_COLOR_SET_G(ret, LV_UDIV255(premult_c1[1] + LV_COLOR_GET_G(c2) * mix + LV_COLOR_MIX_ROUND_OFS));