hsv2rgb_fullspectrum() [2/3]

void hsv2rgb_fullspectrum	(	const struct CHSV &	hsv,
		CRGB &	rgb )

Definition at line 494 of file hsv2rgb.cpp.

                                                              {
  const auto f = [](const int n, const uint8_t h) -> unsigned int {
    constexpr int kZero = 0 << 8;
    constexpr int kOne  = 1 << 8;
    constexpr int kFour = 4 << 8;
    constexpr int kSix  = 6 << 8;
 
    const int k = ((n << 8) + 6*h) % kSix;
    const int k2 = kFour - k;
    return fl::fl_max(kZero, fl::fl_min(kOne, fl::fl_min(k, k2)));
  };
 
  const unsigned int chroma = hsv.v * hsv.s / 255;
  rgb.r = hsv.v - ((chroma * f(5, hsv.h)) >> 8);
  rgb.g = hsv.v - ((chroma * f(3, hsv.h)) >> 8);
  rgb.b = hsv.v - ((chroma * f(1, hsv.h)) >> 8);
}

References fl::fl_max(), and fl::fl_min().

Referenced by hsv2rgb_dispatch(), hsv2rgb_dispatch(), hsv2rgb_fullspectrum(), hsv2rgb_fullspectrum(), and loop().

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