hyperion.ng/libsrc/utils/RgbToRgbw.cpp

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#include <utils/ColorRgb.h>
#include <utils/ColorRgbw.h>
#include <utils/Logger.h>
void Rgb_to_Rgbw(ColorRgb input, ColorRgbw * output, std::string _whiteAlgorithm) {
if (_whiteAlgorithm == "subtract_minimum") {
output->white = std::min(input.red, input.green);
output->white = std::min(output->white, input.blue);
output->red = input.red - output->white;
output->green = input.green - output->white;
output->blue = input.blue - output->white;
}
else if (_whiteAlgorithm == "sub_min_warm_adjust") {
}
else if ( (_whiteAlgorithm == "") || (_whiteAlgorithm == "white_off") ) {
output->red = input.red;
output->green = input.green;
output->blue = input.blue;
output->white = 0;
}
else {
Error(Logger::getInstance("RGBtoRGBW"), "unknown whiteAlgorithm %s", _whiteAlgorithm.c_str());
}
}