28 lines
926 B
Arduino
28 lines
926 B
Arduino
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/*
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* Color conversion methods
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*/
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void colorCTtoRGB(uint16_t mired, uint8_t* rgb) //white spectrum to rgb
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{
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}
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void colorHSBtoRGB(uint16_t hue, uint8_t sat, uint8_t bri, uint8_t* rgb) //hue, sat, bri to rgb
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{
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}
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void colorXYtoRGB(float x, float y, uint8_t* rgb) //coordinates to rgb (https://www.developers.meethue.com/documentation/color-conversions-rgb-xy)
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{
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float z = 1.0f - x - y;
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//float Y = 1.0f; // Brightness, we handle this separately
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float X = (1.0f / y) * x;
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float Z = (1.0f / y) * z;
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rgb[0] = (int)(X * 1.656492f - 0.354851f - Z * 0.255038f);
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rgb[1] = (int)(-X * 0.707196f + 1.655397f + Z * 0.036152f);
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rgb[2] = (int)(X * 0.051713f - 0.121364f + Z * 1.011530f);
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}
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void colorRGBtoXY(uint8_t* rgb, float* xy){} //rgb to coordinates (https://www.developers.meethue.com/documentation/color-conversions-rgb-xy)
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void colorRGBtoRGBW(uint8_t* rgb, uint8_t* rgbw){} //rgb to rgbw, not imlemented yet
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