hyperion.ng/libsrc/utils/RgbChannelCorrection.cpp

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// STL includes
#include <cmath>
// Utils includes
#include <utils/RgbChannelCorrection.h>
RgbChannelCorrection::RgbChannelCorrection() :
_correctionR(255),
_correctionG(255),
_correctionB(255)
{
initializeMapping();
}
RgbChannelCorrection::RgbChannelCorrection(int correctionR, int correctionG, int correctionB) :
_correctionR(correctionR),
_correctionG(correctionG),
_correctionB(correctionB)
{
initializeMapping();
}
RgbChannelCorrection::~RgbChannelCorrection()
{
}
uint8_t RgbChannelCorrection::getcorrectionR() const
{
return _correctionR;
}
void RgbChannelCorrection::setcorrectionR(uint8_t correctionR)
{
_correctionR = correctionR;
initializeMapping();
}
uint8_t RgbChannelCorrection::getcorrectionG() const
{
return _correctionG;
}
void RgbChannelCorrection::setcorrectionG(uint8_t correctionG)
{
_correctionG = correctionG;
initializeMapping();
}
uint8_t RgbChannelCorrection::getcorrectionB() const
{
return _correctionB;
}
void RgbChannelCorrection::setcorrectionB(uint8_t correctionB)
{
_correctionB = correctionB;
initializeMapping();
}
uint8_t RgbChannelCorrection::correctionR(uint8_t inputR) const
{
return _mappingR[inputR];
}
uint8_t RgbChannelCorrection::correctionG(uint8_t inputG) const
{
return _mappingG[inputG];
}
uint8_t RgbChannelCorrection::correctionB(uint8_t inputB) const
{
return _mappingB[inputB];
}
void RgbChannelCorrection::initializeMapping()
{
// initialize the mapping
for (int i = 0; i < 256; ++i)
{
int outputR = (i * _correctionR) / 255;
if (outputR < -255)
{
outputR = -255;
}
else if (outputR > 255)
{
outputR = 255;
}
_mappingR[i] = outputR;
}
for (int i = 0; i < 256; ++i)
{
int outputG = (i * _correctionG) / 255;
if (outputG < -255)
{
outputG = -255;
}
else if (outputG > 255)
{
outputG = 255;
}
_mappingG[i] = outputG;
}
for (int i = 0; i < 256; ++i)
{
int outputB = (i * _correctionB) / 255;
if (outputB < -255)
{
outputB = -255;
}
else if (outputB > 255)
{
outputB = 255;
}
_mappingB[i] = outputB;
}
}