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67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
// STL includes
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#include <cmath>
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#include <cstdint>
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#include <algorithm>
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// Utils includes
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#include <utils/RgbChannelAdjustment.h>
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RgbChannelAdjustment::RgbChannelAdjustment(QString channelName)
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: _channelName(channelName)
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, _log(Logger::getInstance(channelName))
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{
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//setAdjustment(UINT8_MAX, UINT8_MAX, UINT8_MAX);
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}
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RgbChannelAdjustment::RgbChannelAdjustment(uint8_t adjustR, uint8_t adjustG, uint8_t adjustB, QString channelName)
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: _channelName(channelName)
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, _log(Logger::getInstance(channelName))
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{
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setAdjustment(adjustR, adjustG, adjustB);
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}
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RgbChannelAdjustment::~RgbChannelAdjustment()
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{
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}
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void RgbChannelAdjustment::setAdjustment(uint8_t adjustR, uint8_t adjustG, uint8_t adjustB)
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{
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_adjust[RED] = adjustR;
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_adjust[GREEN] = adjustG;
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_adjust[BLUE] = adjustB;
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initializeMapping();
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}
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uint8_t RgbChannelAdjustment::getAdjustmentR() const
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{
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return _adjust[RED];
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}
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uint8_t RgbChannelAdjustment::getAdjustmentG() const
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{
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return _adjust[GREEN];
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}
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uint8_t RgbChannelAdjustment::getAdjustmentB() const
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{
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return _adjust[BLUE];
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}
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void RgbChannelAdjustment::apply(uint8_t input, uint8_t & red, uint8_t & green, uint8_t & blue)
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{
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red = _mapping[RED][input];
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green = _mapping[GREEN][input];
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blue = _mapping[BLUE][input];
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}
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void RgbChannelAdjustment::initializeMapping()
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{
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Debug(_log, "initialize mapping with %d,%d,%d", _adjust[RED], _adjust[GREEN], _adjust[BLUE]);
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// initialize linear mapping
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for (unsigned channel=0; channel<3; channel++)
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for (unsigned idx=0; idx<=UINT8_MAX; idx++)
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{
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_mapping[channel][idx] = std::min( ((idx * _adjust[channel]) / UINT8_MAX), (unsigned)UINT8_MAX);
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}
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}
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