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HUB75 small optimization

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use CRGB instead converging to uint32_t, then extracting bytes with shift & mask
This commit is contained in:
Frank
2024-10-29 18:45:54 +01:00
committed by GitHub
parent f15bb83abb
commit 91ff04a79b
1 changed files with 7 additions and 2 deletions
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9
wled00/bus_manager.cpp
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@@ -1056,13 +1056,18 @@ void __attribute__((hot)) BusHub75Matrix::show(void) {
size_t pix = 0; // running pixel index
for (int y=0; y<height; y++) for (int x=0; x<width; x++) {
if (getBitFromArray(_ledsDirty, pix) == true) { // only repaint the "dirty" pixels
uint32_t c = uint32_t(_ledBuffer[pix]) & 0x00FFFFFF; // get RGB color, removing FastLED "alpha" component
#ifndef NO_CIE1931
uint32_t c = uint32_t(_ledBuffer[pix]) & 0x00FFFFFF; // get RGB color, removing FastLED "alpha" component
c = unGamma24(c); // to use the driver linear brightness feature, we first need to undo WLED gamma correction
#endif
uint8_t r = R(c);
uint8_t g = G(c);
uint8_t b = B(c);
#else
const CRGB c = _ledBuffer[pix]; // we stay on CRGB, instead of packing/unpacking the color value to uint32_t
uint8_t r = c.r;
uint8_t g = c.g;
uint8_t b = c.b;
#endif
if (isFourScan) fourScanPanel->drawPixelRGB888(int16_t(x), int16_t(y), r, g, b);
else display->drawPixelRGB888(int16_t(x), int16_t(y), r, g, b);
}