hyperion.ng/include/utils/RgbTransform.h
Murat Seker 138b7d9c94
Random cleanup (#861)
Co-authored-by: Seker <murat.seker@barco.com>
2020-07-12 09:19:59 +02:00

137 lines
3.7 KiB
C++

#pragma once
// STL includes
#include <cstdint>
///
/// Color transformation to adjust the saturation and value of a RGB color value
///
class RgbTransform
{
public:
///
/// Default constructor
///
RgbTransform();
///
/// Constructor
///
/// @param gammaR The used red gamma
/// @param gammaG The used green gamma
/// @param gammab The used blue gamma
/// @param backlightThreshold The used lower brightness
/// @param backlightColored use color in backlight
/// @param brightnessHigh The used higher brightness
///
RgbTransform(double gammaR, double gammaG, double gammaB, double backlightThreshold, bool backlightColored, uint8_t brightness, uint8_t brightnessCompensation);
/// @return The current red gamma value
double getGammaR() const;
/// @return The current green gamma value
double getGammaG() const;
/// @return The current blue gamma value
double getGammaB() const;
/// @param gammaR New red gamma value
/// @param gammaG New green gamma value
/// @param gammaB New blue gamma value
void setGamma(double gammaR,double gammaG=-1, double gammaB=-1);
/// @return The current lower brightness
int getBacklightThreshold() const;
/// @param backlightThreshold New lower brightness
void setBacklightThreshold(int backlightThreshold);
/// @return The current state
bool getBacklightColored() const;
/// @param backlightColored en/disable colored backlight
void setBacklightColored(bool backlightColored);
/// @return return state of backlight
bool getBackLightEnabled() const;
/// @param enable en/disable backlight
void setBackLightEnabled(bool enable);
/// @return The current brightness
uint8_t getBrightness() const;
/// @param brightness New brightness
void setBrightness(uint8_t brightness);
/// @return The current brightnessCompensation value
uint8_t getBrightnessCompensation() const;
/// @param brightnessCompensation new brightnessCompensation
void setBrightnessCompensation(uint8_t brightnessCompensation);
///
/// get component values of brightness for compensated brightness
///
/// @param rgb the rgb component
/// @param cmy the cyan magenta yellow component
/// @param w the white component
///
/// @note The values are updated in place.
///
void getBrightnessComponents(uint8_t & rgb, uint8_t & cmy, uint8_t & w) const;
///
/// Apply the transform the the given RGB values.
///
/// @param red The red color component
/// @param green The green color component
/// @param blue The blue color component
///
/// @note The values are updated in place.
///
void transform(uint8_t & red, uint8_t & green, uint8_t & blue);
private:
///
/// init
///
/// @param gammaR The used red gamma
/// @param gammaG The used green gamma
/// @param gammab The used blue gamma
/// @param backlightThreshold The used lower brightness
/// @param backlightColored en/disable color in backlight
/// @param brightness The used brightness
/// @param brightnessCompensation The used brightness compensation
///
void init(double gammaR, double gammaG, double gammaB, double backlightThreshold, bool backlightColored, uint8_t brightness, uint8_t brightnessCompensation);
/// (re)-initilize the color mapping
void initializeMapping(); /// The saturation gain
void updateBrightnessComponents();
/// backlight variables
bool _backLightEnabled
, _backlightColored;
double _backlightThreshold
, _sumBrightnessLow;
/// gamma variables
double _gammaR
, _gammaG
, _gammaB;
/// The mapping from input color to output color
uint8_t _mappingR[256]
, _mappingG[256]
, _mappingB[256];
/// brightness variables
uint8_t _brightness
, _brightnessCompensation
, _brightness_rgb
, _brightness_cmy
, _brightness_w;
};