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updated Segment::color_from_palette

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- gamma correction only where needed
- paletteIndex should be uint8_t (it is only used as that)
note: integrating the new `ColorFromPaletteWLED()` into this would require  a whole lot of code rewrite and would result in more color conversions from 32bit to CRGB. It would be really useful only if CRGB is replaced with native 32bit colors.
This commit is contained in:
Damian Schneider 2024-09-14 14:49:36 +02:00
parent 0e5bd4ed74
commit f3137eb0a9
1 changed files with 8 additions and 5 deletions
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13
wled00/FX_fcn.cpp
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@ -1181,18 +1181,21 @@ uint32_t Segment::color_wheel(uint8_t pos) const {
* @returns Single color from palette
*/
uint32_t Segment::color_from_palette(uint16_t i, bool mapping, bool wrap, uint8_t mcol, uint8_t pbri) const {
uint32_t color = gamma32(currentColor(mcol));
uint32_t color = currentColor(mcol);
// default palette or no RGB support on segment
if ((palette == 0 && mcol < NUM_COLORS) || !_isRGB) return (pbri == 255) ? color : color_fade(color, pbri, true);
if ((palette == 0 && mcol < NUM_COLORS) || !_isRGB) {
color = gamma32(color);
return (pbri == 255) ? color : color_fade(color, pbri, true);
}
unsigned paletteIndex = i;
uint8_t paletteIndex = i;
if (mapping && virtualLength() > 1) paletteIndex = (i*255)/(virtualLength() -1);
// paletteBlend: 0 - wrap when moving, 1 - always wrap, 2 - never wrap, 3 - none (undefined)
if (!wrap && strip.paletteBlend != 3) paletteIndex = scale8(paletteIndex, 240); //cut off blend at palette "end"
CRGB fastled_col = ColorFromPalette(_currentPalette, paletteIndex, pbri, (strip.paletteBlend == 3)? NOBLEND:LINEARBLEND); // NOTE: paletteBlend should be global
return RGBW32(fastled_col.r, fastled_col.g, fastled_col.b, W(color));
return RGBW32(fastled_col.r, fastled_col.g, fastled_col.b, gamma8(W(color)));
}