mirror of
https://github.com/hyperion-project/hyperion.ng.git
synced 2023-10-10 13:36:59 +02:00
2fb2fc9dd7
* Imported Oklab reference implementation * Add Okhsv conversions * Fixed formatting error * Add saturation and value gain to schemas * Add english translation for saturation, value gain * Created OkhsvTransform * Make OkhsvTransform configurable * Apply OkhvsTransform * Clamped values during transform * Precalculate isIdentity in OkhsvTransform * Skip OkhsvTransform if it is the identity function * Added changelog message * Allow for full desaturation * Imported recommended changes by LordGrey * Fixed typo in constant * Fixed anti-pattern in ok_color.h * Correct indentions * Correct remote-control * Limited maximum gain settings to practical range * Renane valueGain to brightnessGain for clarity and understanding Co-authored-by: LordGrey <lordgrey.emmel@gmail.com>
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
#include <utils/ColorSys.h>
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#include <QColor>
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#include <oklab/ok_color.h>
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inline uint8_t clamp(int x)
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{
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return (x<0) ? 0 : ((x>255) ? 255 : uint8_t(x));
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}
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void ColorSys::rgb2hsl(uint8_t red, uint8_t green, uint8_t blue, uint16_t & hue, float & saturation, float & luminance)
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{
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QColor color(red,green,blue);
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#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
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float h, s, l;
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#else
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qreal h, s, l;
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#endif
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color.getHslF(&h,&s,&l);
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hue = h;
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saturation = s;
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luminance = l;
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}
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void ColorSys::hsl2rgb(uint16_t hue, float saturation, float luminance, uint8_t & red, uint8_t & green, uint8_t & blue)
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{
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QColor color(QColor::fromHslF(hue,(qreal)saturation,(qreal)luminance));
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red = (uint8_t)color.red();
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green = (uint8_t)color.green();
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blue = (uint8_t)color.blue();
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}
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void ColorSys::rgb2hsv(uint8_t red, uint8_t green, uint8_t blue, uint16_t & hue, uint8_t & saturation, uint8_t & value)
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{
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QColor color(red,green,blue);
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hue = color.hsvHue();
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saturation = color.hsvSaturation();
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value = color.value();
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}
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void ColorSys::hsv2rgb(uint16_t hue, uint8_t saturation, uint8_t value, uint8_t & red, uint8_t & green, uint8_t & blue)
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{
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QColor color(QColor::fromHsv(hue,saturation,value));
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red = (uint8_t)color.red();
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green = (uint8_t)color.green();
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blue = (uint8_t)color.blue();
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}
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void ColorSys::yuv2rgb(uint8_t y, uint8_t u, uint8_t v, uint8_t &r, uint8_t &g, uint8_t &b)
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{
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// see: http://en.wikipedia.org/wiki/YUV#Y.27UV444_to_RGB888_conversion
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int c = y - 16;
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int d = u - 128;
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int e = v - 128;
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r = clamp((298 * c + 409 * e + 128) >> 8);
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g = clamp((298 * c - 100 * d - 208 * e + 128) >> 8);
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b = clamp((298 * c + 516 * d + 128) >> 8);
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}
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void ColorSys::rgb2okhsv(uint8_t red, uint8_t green, uint8_t blue, double & hue, double & saturation, double & value)
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{
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ok_color::HSV color = ok_color::srgb_to_okhsv({ static_cast<float>(red) / 255.F,
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static_cast<float>(green) / 255.F,
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static_cast<float>(blue) / 255.F
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});
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hue = color.h;
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saturation = color.s;
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value = color.v;
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}
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void ColorSys::okhsv2rgb(double hue, double saturation, double value, uint8_t & red, uint8_t & green, uint8_t & blue)
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{
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ok_color::RGB color = ok_color::okhsv_to_srgb({ static_cast<float>(hue), static_cast<float>(saturation), static_cast<float>(value) });
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red = static_cast<uint8_t>(std::lround(color.r * 255));
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green = static_cast<uint8_t>(std::lround(color.g * 255));
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blue = static_cast<uint8_t>(std::lround(color.b * 255));
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}
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