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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "ColorUtils.h"
#include "StringUtils.h"
#include <algorithm>
#include <cmath>
#include <cstdio>
using namespace UTILS::COLOR;
namespace
{
void GetHSLValues(ColorInfo& colorInfo)
{
double r = (colorInfo.colorARGB & 0x00FF0000) >> 16;
double g = (colorInfo.colorARGB & 0x0000FF00) >> 8;
double b = (colorInfo.colorARGB & 0x000000FF);
r /= 255;
g /= 255;
b /= 255;
const double& maxVal = std::max<double>({r, g, b});
const double& minVal = std::min<double>({r, g, b});
double h = 0;
double s = 0;
double l = (minVal + maxVal) / 2;
double d = maxVal - minVal;
if (d == 0)
{
h = s = 0; // achromatic
}
else
{
s = l > 0.5 ? d / (2 - maxVal - minVal) : d / (maxVal + minVal);
if (maxVal == r)
{
h = (g - b) / d + (g < b ? 6 : 0);
}
else if (maxVal == g)
{
h = (b - r) / d + 2;
}
else if (maxVal == b)
{
h = (r - g) / d + 4;
}
h /= 6;
}
colorInfo.hue = h;
colorInfo.saturation = s;
colorInfo.lightness = l;
}
} // unnamed namespace
Color UTILS::COLOR::ChangeOpacity(const Color argb, const float opacity)
{
int newAlpha = static_cast<int>(std::ceil(((argb >> 24) & 0xff) * opacity));
return (argb & 0x00FFFFFF) | (newAlpha << 24);
};
Color UTILS::COLOR::ConvertToRGBA(const Color argb)
{
return ((argb & 0x00FF0000) << 8) | //RR______
((argb & 0x0000FF00) << 8) | //__GG____
((argb & 0x000000FF) << 8) | //____BB__
((argb & 0xFF000000) >> 24); //______AA
}
Color UTILS::COLOR::ConvertToARGB(const Color rgba)
{
return ((rgba & 0x000000FF) << 24) | //AA_____
((rgba & 0xFF000000) >> 8) | //__RR____
((rgba & 0x00FF0000) >> 8) | //____GG__
((rgba & 0x0000FF00) >> 8); //______BB
}
Color UTILS::COLOR::ConvertToBGR(const Color argb)
{
return (argb & 0x00FF0000) >> 16 | //____RR
(argb & 0x0000FF00) | //__GG__
(argb & 0x000000FF) << 16; //BB____
}
Color UTILS::COLOR::ConvertHexToColor(const std::string& hexColor)
{
Color value = 0;
std::sscanf(hexColor.c_str(), "%x", &value);
return value;
}
Color UTILS::COLOR::ConvertIntToRGB(int r, int g, int b)
{
return ((r & 0xff) << 16) + ((g & 0xff) << 8) + (b & 0xff);
}
ColorInfo UTILS::COLOR::MakeColorInfo(const Color& argb)
{
ColorInfo colorInfo;
colorInfo.colorARGB = argb;
GetHSLValues(colorInfo);
return colorInfo;
}
ColorInfo UTILS::COLOR::MakeColorInfo(const std::string& hexColor)
{
ColorInfo colorInfo;
colorInfo.colorARGB = ConvertHexToColor(hexColor);
GetHSLValues(colorInfo);
return colorInfo;
}
bool UTILS::COLOR::comparePairColorInfo(const std::pair<std::string, ColorInfo>& a,
const std::pair<std::string, ColorInfo>& b)
{
if (a.second.hue == b.second.hue)
{
if (a.second.saturation == b.second.saturation)
return (a.second.lightness < b.second.lightness);
else
return (a.second.saturation < b.second.saturation);
}
else
return (a.second.hue < b.second.hue);
}
ColorFloats UTILS::COLOR::ConvertToFloats(const Color argb)
{
ColorFloats c;
c.alpha = static_cast<float>((argb >> 24) & 0xFF) * (1.0f / 255.0f);
c.red = static_cast<float>((argb >> 16) & 0xFF) * (1.0f / 255.0f);
c.green = static_cast<float>((argb >> 8) & 0xFF) * (1.0f / 255.0f);
c.blue = static_cast<float>(argb & 0xFF) * (1.0f / 255.0f);
return c;
}
std::string UTILS::COLOR::ConvertToHexRGB(const Color argb)
{
return StringUtils::Format("{:06X}", argb & ~0xFF000000);
}
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