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some drawing speedups

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* speedups for addPixelColorXY, fadePixelColorXY, fadeToBlackBy
This commit is contained in:
Frank
2024-09-28 02:19:53 +02:00
parent 0555b8e5f2
commit b245112d2a
4 changed files with 16 additions and 9 deletions
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16
wled00/FX_2Dfcn.cpp
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@@ -463,8 +463,9 @@ uint32_t IRAM_ATTR_YN Segment::getPixelColorXY(int x, int y) const {
if (reverse ) x = virtualWidth() - x - 1;
if (reverse_y) y = virtualHeight() - y - 1;
if (transpose) { uint16_t t = x; x = y; y = t; } // swap X & Y if segment transposed
x *= groupLength(); // expand to physical pixels
y *= groupLength(); // expand to physical pixels
const uint_fast16_t groupLength_ = groupLength(); // WLEDMM small optimization
x *= groupLength_; // expand to physical pixels
y *= groupLength_; // expand to physical pixels
if (x >= width() || y >= height()) return 0;
return strip.getPixelColorXY(start + x, startY + y);
}
@@ -479,15 +480,16 @@ void Segment::blendPixelColorXY(uint16_t x, uint16_t y, uint32_t color, uint8_t
void IRAM_ATTR_YN Segment::addPixelColorXY(int x, int y, uint32_t color, bool fast) {
// if (!isActive()) return; // not active //WLEDMM sanity check is repeated in getPixelColorXY / setPixelColorXY
// if (x >= virtualWidth() || y >= virtualHeight() || x<0 || y<0) return; // if pixel would fall out of virtual segment just exit //WLEDMM
uint32_t col = getPixelColorXY(x,y);
col = color_add(col, color, fast);
setPixelColorXY(x, y, col);
uint32_t oldCol = getPixelColorXY(x,y);
uint32_t col = color_add(oldCol, color, fast);
if (col != oldCol) setPixelColorXY(x, y, col);
}
void Segment::fadePixelColorXY(uint16_t x, uint16_t y, uint8_t fade) {
// if (!isActive()) return; // not active //WLEDMM sanity check is repeated in getPixelColorXY / setPixelColorXY
CRGB pix = CRGB(getPixelColorXY(x,y)).nscale8_video(fade);
setPixelColorXY(x, y, pix);
CRGB oldPix = CRGB(getPixelColorXY(x,y));
CRGB pix = oldPix.nscale8_video(fade);
if (pix != oldPix) setPixelColorXY(int(x), int(y), pix);
}
// blurRow: perform a blur on a row of a rectangular matrix