Add Temperature adjustment

assets/webconfig/i18n/en.json

@@ -227,6 +227,7 @@
     "edt_append_degree": "°",
     "edt_append_frames": "frames",
     "edt_append_hz": "Hz",
+    "edt_append_kelvin": "K",
     "edt_append_leds": "LEDs",
     "edt_append_ms": "ms",
     "edt_append_ns": "ns",
@@ -261,6 +262,8 @@
     "edt_conf_color_blue_title": "Blue",
     "edt_conf_color_brightnessComp_expl": "Compensates brightness differences between red green blue, cyan magenta yellow and white. 100 means full compensation, 0 no compensation",
     "edt_conf_color_brightnessComp_title": "Brightness compensation",
+    "edt_conf_color_brightnessGain_expl": "Adjusts the brightness of colors. 1.0 means no change, over 1.0 increases brightness, under 1.0 decreases brightness.",
+    "edt_conf_color_brightnessGain_title": "Brightness gain",
     "edt_conf_color_brightness_expl": "set overall brightness of LEDs",
     "edt_conf_color_brightness_title": "Brightness",
     "edt_conf_color_channelAdjustment_header_expl": "Create color profiles that could be assigned to a specific component. Adjust color, gamma, brightness, compensation and more.",
@@ -287,10 +290,10 @@
     "edt_conf_color_magenta_title": "Magenta",
     "edt_conf_color_red_expl": "The calibrated red value.",
     "edt_conf_color_red_title": "Red",
+    "edt_conf_color_temperature_expl": "Adjusts the corlor temperature.",
+    "edt_conf_color_temperature_title": "Temperature",
     "edt_conf_color_saturationGain_expl": "Adjusts the saturation of colors. 1.0 means no change, over 1.0 increases saturation, under 1.0 desaturates.",
     "edt_conf_color_saturationGain_title": "Saturation gain",
-    "edt_conf_color_brightnessGain_expl": "Adjusts the brightness of colors. 1.0 means no change, over 1.0 increases brightness, under 1.0 decreases brightness.",
-    "edt_conf_color_brightnessGain_title": "Brightness gain",
     "edt_conf_color_white_expl": "The calibrated white value.",
     "edt_conf_color_white_title": "White",
     "edt_conf_color_yellow_expl": "The calibrated yellow value.",
@@ -446,6 +449,8 @@
     "edt_conf_smooth_heading_title": "Smoothing",
     "edt_conf_smooth_interpolationRate_expl": "Speed of the calculation of smooth intermediate frames.",
     "edt_conf_smooth_interpolationRate_title": "Interpolation Rate",
+    "edt_conf_smooth_outputRate_expl": "The output speed to your LED controller.",
+    "edt_conf_smooth_outputRate_title": "Output Rate",
     "edt_conf_smooth_time_ms_expl": "How long should the smoothing gather pictures?",
     "edt_conf_smooth_time_ms_title": "Time",
     "edt_conf_smooth_type_expl": "Type of smoothing.",

assets/webconfig/js/content_remote.js

@@ -75,11 +75,12 @@ $(document).ready(function () {
             sColor[key].key == "brightnessCompensation" ||
             sColor[key].key == "backlightThreshold" ||
             sColor[key].key == "saturationGain" ||
-            sColor[key].key == "brightnessGain") {
+            sColor[key].key == "brightnessGain" ||
+            sColor[key].key == "temperature" ) {
 
             property = '<input id="cr_' + sColor[key].key + '" type="number" class="form-control" min="' + sColor[key].minimum + '" max="' + sColor[key].maximum + '" step="' + sColor[key].step + '" value="' + value + '"/>';
-            if (sColor[key].append === "edt_append_percent") {
+            if (sColor[key].append && sColor[key].append !== "" ) {
-              property = '<div class="input-group">' + property + '<span class="input-group-addon">' + $.i18n("edt_append_percent") + '</span></div>';
+              property = '<div class="input-group">' + property + '<span class="input-group-addon">' + $.i18n(sColor[key].append) + '</span></div>';
             }
           }
           else {

assets/webconfig/js/wizard.js

@@ -854,7 +854,12 @@ function checkUserResult(reply, usr) {
 
 function useGroupId(id) {
   $('#groupId').val(id);
-  groupLights = hueGroups[id].lights;
+
+  //Ensure ligthIDs are strings
+  groupLights = hueGroups[id].lights.map(num => {
+    return String(num);
+  });
+
   groupLightsLocations = hueGroups[id].locations;
   get_hue_lights();
 }

cmake/packages.cmake

@@ -72,7 +72,7 @@ endif()
 # .deb files for apt
 # https://cmake.org/cmake/help/latest/cpack_gen/deb.html
 SET ( CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA "${CMAKE_SOURCE_DIR}/cmake/package-scripts/preinst;${CMAKE_SOURCE_DIR}/cmake/package-scripts/postinst;${CMAKE_SOURCE_DIR}/cmake/package-scripts/prerm" )
-SET ( CPACK_DEBIAN_PACKAGE_DEPENDS "libcec6 | libcec4" )
+SET ( CPACK_DEBIAN_PACKAGE_DEPENDS "libcec6 | libcec4 | libcec (>= 4.0)" )
 SET ( CPACK_DEBIAN_PACKAGE_SECTION "Miscellaneous" )
 
 # .rpm for rpm

config/hyperion.config.json.default

@@ -48,7 +48,8 @@
 				"brightness" : 100,
 				"brightnessCompensation" : 100,
 				"saturationGain" : 1.0,
-				"brightnessGain" : 1.0
+				"brightnessGain" : 1.0,
+				"temperature" : 6600
 			}
 		]
 	},

include/hyperion/ColorAdjustment.h

@@ -1,7 +1,7 @@
 #ifndef COLORADJUSTMENT_H
 #define COLORADJUSTMENT_H
 
-// STL includes
+// Qt includes
 #include <QString>
 
 // Utils includes

include/hyperion/ColorCorrection.h

@@ -0,0 +1,18 @@
+#pragma once
+
+// Qt includes
+#include <QString>
+
+// Utils includes
+#include <utils/RgbChannelCorrection.h>
+
+class ColorCorrection
+{
+public:
+	
+	/// Unique identifier for this color correction
+	QString _id;
+
+	/// The RGB correction
+	RgbChannelCorrection _rgbCorrection;
+};

include/hyperion/Hyperion.h

@@ -22,6 +22,7 @@
 #include <hyperion/LedString.h>
 #include <hyperion/PriorityMuxer.h>
 #include <hyperion/ColorAdjustment.h>
+#include <hyperion/ColorCorrection.h>
 #include <hyperion/ComponentRegister.h>
 
 #if defined(ENABLE_EFFECTENGINE)
@@ -48,6 +49,7 @@ class LinearColorSmoothing;
 class EffectEngine;
 #endif
 class MultiColorAdjustment;
+class MultiColorCorrection;
 class ColorAdjustment;
 class SettingsManager;
 class BGEffectHandler;
@@ -181,15 +183,30 @@ public slots:
 	///
 	QStringList getAdjustmentIds() const;
 
+	///
+	/// Returns the list with unique correction identifiers
+	/// @return The list with correction identifiers
+	///
+	QStringList getTemperatureIds() const;
+
 	///
 	/// Returns the ColorAdjustment with the given identifier
 	/// @return The adjustment with the given identifier (or nullptr if the identifier does not exist)
 	///
 	ColorAdjustment * getAdjustment(const QString& id) const;
 
+	///
+	/// Returns the ColorCorrection with the given identifier
+	/// @return The correction with the given identifier (or nullptr if the identifier does not exist)
+	///
+	ColorCorrection * getTemperature(const QString& id) const;
+
 	/// Tell Hyperion that the corrections have changed and the leds need to be updated
 	void adjustmentsUpdated();
 
+	/// Tell Hyperion that the corrections have changed and the leds need to be updated
+	void temperaturesUpdated();
+
 	///
 	/// Clears the given priority channel. This will switch the led-colors to the colors of the next
 	/// lower priority channel (or off if no more channels are set)
@@ -566,6 +583,9 @@ private:
 	/// The adjustment from raw colors to led colors
 	MultiColorAdjustment * _raw2ledAdjustment;
 
+	/// The temperature from raw colors to led colors
+	MultiColorCorrection * _raw2ledTemperature;
+
 	/// The actual LedDeviceWrapper
 	LedDeviceWrapper* _ledDeviceWrapper;
 

include/hyperion/MultiColorCorrection.h

@@ -0,0 +1,69 @@
+#pragma once
+
+// STL includes
+
+#include <vector>
+
+// Utils includes
+#include <utils/ColorRgb.h>
+#include "utils/Logger.h"
+
+// Hyperion includes
+#include <hyperion/ColorCorrection.h>
+
+///
+/// The LedColorCorrection is responsible for performing color correction from 'raw' colors
+/// received as input to colors mapped to match the color-properties of the leds.
+///
+class MultiColorCorrection
+{
+public:
+	MultiColorCorrection(int ledCnt);
+	~MultiColorCorrection();
+
+	/**
+	 * Adds a new ColorCorrection to this MultiColorCorrection
+	 *
+	 * @param Correction The new ColorCorrection (ownership is transfered)
+	 */
+	void addCorrection(ColorCorrection * correction);
+
+	void setCorrectionForLed(const QString& id, int startLed, int endLed);
+
+	bool verifyCorrections() const;
+
+	///
+	/// Returns the identifier of all the unique ColorCorrection
+	///
+	/// @return The list with unique id's of the ColorCorrections
+	QStringList & getCorrectionIds();
+
+	///
+	/// Returns the pointer to the ColorCorrection with the given id
+	///
+	/// @param id The identifier of the ColorCorrection
+	///
+	/// @return The ColorCorrection with the given id (or nullptr if it does not exist)
+	///
+	ColorCorrection* getCorrection(const QString& id);
+
+	///
+	/// Performs the color transoformation from raw-color to led-color
+	///
+	/// @param ledColors The list with raw colors
+	///
+	void applyCorrection(std::vector<ColorRgb>& ledColors);
+
+private:
+	/// List with Correction ids
+	QStringList _correctionIds;
+
+	/// List with unique ColorCorrections
+	std::vector<ColorCorrection*> _correction;
+
+	/// List with a pointer to the ColorCorrection for each individual led
+	std::vector<ColorCorrection*> _ledCorrections;
+
+	// logger instance
+	Logger * _log;
+};

include/utils/KelvinToRgb.h

@@ -0,0 +1,72 @@
+#ifndef KELVINTORGB_H
+#define KELVINTORGB_H
+
+#include <cmath>
+
+#include <utils/ColorRgb.h>
+
+
+// Constants
+namespace {
+const int TEMPERATURE_MINIMUM = 1000;
+const int TEMPERATUR_MAXIMUM = 40000;
+} //End of constants
+
+static ColorRgb getRgbFromTemperature(int temperature)
+{
+	//Temperature input in Kelvin valid in the range 1000 K to 40000 K. White light = 6600K
+	temperature = qBound(TEMPERATURE_MINIMUM, temperature, TEMPERATUR_MAXIMUM);
+
+	// All calculations require temperature / 100, so only do the conversion once.
+	temperature /= 100;
+
+	// Compute each color in turn.
+	int red, green, blue;
+
+	// red
+	if (temperature <= 66)
+	{
+		red = 255;
+	}
+	else
+	{
+		// Note: the R-squared value for this approximation is 0.988.
+		red = static_cast<int>(329.698727446 * (pow(temperature - 60, -0.1332047592)));
+	}
+
+	// green
+	if (temperature <= 66)
+	{
+		// Note: the R-squared value for this approximation is 0.996.
+		green = static_cast<int>(99.4708025861 * log(temperature) - 161.1195681661);
+
+	}
+	else
+	{
+		// Note: the R-squared value for this approximation is 0.987.
+		green = static_cast<int>(288.1221695283 * (pow(temperature - 60, -0.0755148492)));
+	}
+
+	// blue
+	if (temperature >= 66)
+	{
+		blue = 255;
+	}
+	else if (temperature <= 19)
+	{
+		blue = 0;
+	}
+	else
+	{
+		// Note: the R-squared value for this approximation is 0.998.
+		blue = static_cast<int>(138.5177312231 * log(temperature - 10) - 305.0447927307);
+	}
+
+	return {
+		static_cast<uint8_t>(qBound(0, red, 255)),
+		static_cast<uint8_t>(qBound(0, green, 255)),
+		static_cast<uint8_t>(qBound(0, blue, 255)),
+	};
+}
+
+#endif // KELVINTORGB_H

include/utils/RgbChannelCorrection.h

@@ -0,0 +1,66 @@
+#pragma once
+
+// STL includes
+#include <cstdint>
+
+/// Correction for a single color byte value
+/// All configuration values are unsigned int and assume the color value to be between 0 and 255
+class RgbChannelCorrection
+{
+public:
+	/// Default constructor
+	RgbChannelCorrection();
+	
+	/// Constructor
+	/// @param correctionR  
+	/// @param correctionG 
+	/// @param correctionB 
+
+	RgbChannelCorrection(int correctionR, int correctionG, int correctionB);
+
+	/// Destructor
+	~RgbChannelCorrection();
+
+	/// @return The current correctionR value
+	uint8_t getcorrectionR() const;
+
+	/// @param threshold New correctionR value
+	void setcorrectionR(uint8_t correctionR);
+
+	/// @return The current correctionG value
+	uint8_t getcorrectionG() const;
+
+	/// @param gamma New correctionG value
+	void setcorrectionG(uint8_t correctionG);
+
+	/// @return The current correctionB value
+	uint8_t getcorrectionB() const;
+
+	/// @param blacklevel New correctionB value
+	void setcorrectionB(uint8_t correctionB);
+
+	/// Transform the given array value
+	/// @param input The input color bytes
+	/// @return The corrected byte value
+	uint8_t correctionR(uint8_t inputR) const;
+	uint8_t correctionG(uint8_t inputG) const;
+	uint8_t correctionB(uint8_t inputB) const;
+
+
+private:
+	/// (re)-initilize the color mapping
+	void initializeMapping();
+
+private:
+	/// The correction of R channel
+	int _correctionR;
+	/// The correction of G channel
+	int _correctionG;
+	/// The correction of B channel
+	int _correctionB;
+	
+	/// The mapping from input color to output color
+	int _mappingR[256];
+	int _mappingG[256];
+	int _mappingB[256];
+};

include/utils/hyperion.h

@@ -4,8 +4,10 @@
 
 #include <hyperion/ColorAdjustment.h>
 #include <hyperion/MultiColorAdjustment.h>
+#include "hyperion/MultiColorCorrection.h"
 #include <hyperion/LedString.h>
 #include <QRegularExpression>
+#include <utils/KelvinToRgb.h>
 
 // fg effect
 #include <hyperion/Hyperion.h>
@@ -14,6 +16,8 @@
 #include <effectengine/Effect.h>
 #endif
 
+#include <QDebug>
+
 ///
 /// @brief Provide utility methods for Hyperion class
 ///
@@ -100,6 +104,32 @@ namespace hyperion {
 		);
 	}
 
+	RgbChannelCorrection* createRgbChannelCorrection(const QJsonObject& colorConfig)
+	{
+		int varR = colorConfig["red"].toInt(255);
+		int varG = colorConfig["green"].toInt(255);
+		int varB = colorConfig["blue"].toInt(255);
+
+		RgbChannelCorrection* correction = new RgbChannelCorrection(varR, varG, varB);
+		return correction;
+	}
+
+	ColorCorrection * createColorCorrection(const QJsonObject& correctionConfig)
+	{
+		const QString id = correctionConfig["id"].toString("default");
+
+		RgbChannelCorrection * rgbCorrection   = createRgbChannelCorrection(correctionConfig);
+
+		ColorCorrection * correction = new ColorCorrection();
+		correction->_id = id;
+		correction->_rgbCorrection   = *rgbCorrection;
+
+		// Cleanup the allocated individual transforms
+		delete rgbCorrection;
+
+		return correction;
+	}
+
 	ColorAdjustment* createColorAdjustment(const QJsonObject & adjustmentConfig)
 	{
 		const QString id = adjustmentConfig["id"].toString("default");
@@ -179,6 +209,77 @@ namespace hyperion {
 		return adjustment;
 	}
 
+	MultiColorCorrection * createLedColorsTemperature(int ledCnt, const QJsonObject & colorConfig)
+	{
+		// Create the result, the corrections are added to this
+		MultiColorCorrection * correction = new MultiColorCorrection(ledCnt);
+
+		const QJsonValue adjustmentConfig = colorConfig["channelAdjustment"];
+		const QRegularExpression overallExp("([0-9]+(\\-[0-9]+)?)(,[ ]*([0-9]+(\\-[0-9]+)?))*");
+
+		const QJsonArray & adjustmentConfigArray = adjustmentConfig.toArray();
+		for (signed i = 0; i < adjustmentConfigArray.size(); ++i)
+		{
+			const QJsonObject & config = adjustmentConfigArray.at(i).toObject();
+			ColorAdjustment * colorAdjustment = createColorAdjustment(config);
+
+			int temperature = config["temperature"].toInt();
+
+			ColorRgb rgb = getRgbFromTemperature(temperature);
+
+			qDebug() << "createLedColorsTemperature: adjustment[temperture]: " << temperature << "-> " << rgb.toQString();
+
+			QJsonObject correctionConfig {
+				{"red", rgb.red},
+				{"green", rgb.green},
+				{"blue", rgb.blue}
+			};
+
+			ColorCorrection * colorCorrection = createColorCorrection(correctionConfig);
+			correction->addCorrection(colorCorrection);
+
+			const QString ledIndicesStr = config["leds"].toString("").trimmed();
+			if (ledIndicesStr.compare("*") == 0)
+			{
+				// Special case for indices '*' => all leds
+				correction->setCorrectionForLed(colorCorrection->_id, 0, ledCnt-1);
+				Info(Logger::getInstance("HYPERION"), "ColorCorrection '%s' => [0-%d]", QSTRING_CSTR(colorCorrection->_id), ledCnt-1);
+				continue;
+			}
+
+			if (!overallExp.match(ledIndicesStr).hasMatch())
+			{
+				Error(Logger::getInstance("HYPERION"), "Given led indices %d not correct format: %s", i, QSTRING_CSTR(ledIndicesStr));
+				continue;
+			}
+
+			std::stringstream ss;
+			const QStringList ledIndexList = ledIndicesStr.split(",");
+			for (int i=0; i<ledIndexList.size(); ++i) {
+				if (i > 0)
+				{
+					ss << ", ";
+				}
+				if (ledIndexList[i].contains("-"))
+				{
+					QStringList ledIndices = ledIndexList[i].split("-");
+					int startInd = ledIndices[0].toInt();
+					int endInd   = ledIndices[1].toInt();
+					correction->setCorrectionForLed(colorCorrection->_id, startInd, endInd);
+					ss << startInd << "-" << endInd;
+				}
+				else
+				{
+					int index = ledIndexList[i].toInt();
+					correction->setCorrectionForLed(colorCorrection->_id, index, index);
+					ss << index;
+				}
+			}
+			Info(Logger::getInstance("HYPERION"), "ColorCorrection '%s' => [%s]", QSTRING_CSTR(colorAdjustment->_id), ss.str().c_str());
+		}
+		return correction;
+	}
+
 	/**
 	 * Construct the 'led-string' with the integration area definition per led and the color
 	 * ordering of the RGB channels

libsrc/api/JSONRPC_schema/schema-adjustment.json

@@ -146,6 +146,13 @@
 					"required" : false,
 					"minimum" : 0.1,
 					"maximum": 10.0
+				},
+				"temperature" :
+				{
+					"type" : "integer",
+					"required" : false,
+					"minimum" : 1000,
+					"maximum": 40000
 				}
 			},
 			"additionalProperties": false

libsrc/api/JsonAPI.cpp

@@ -60,6 +60,7 @@
 #include <HyperionConfig.h>
 #include <utils/SysInfo.h>
 #include <utils/ColorSys.h>
+#include <utils/KelvinToRgb.h>
 #include <utils/Process.h>
 #include <utils/JsonUtils.h>
 
@@ -519,6 +520,8 @@ void JsonAPI::handleServerInfoCommand(const QJsonObject &message, const QString
 		adjustment["saturationGain"] = colorAdjustment->_okhsvTransform.getSaturationGain();
 		adjustment["brightnessGain"] = colorAdjustment->_okhsvTransform.getBrightnessGain();
 
+		adjustment["temperature"] = 6600;
+
 		adjustmentArray.append(adjustment);
 	}
 
@@ -936,6 +939,17 @@ void JsonAPI::handleAdjustmentCommand(const QJsonObject &message, const QString
 	if (adjustment.contains("brightnessGain"))
 	{
 		colorAdjustment->_okhsvTransform.setBrightnessGain(adjustment["brightnessGain"].toDouble());
+    }
+
+	if (adjustment.contains("temperature"))
+	{
+		int temperature = adjustment["temperature"].toInt(6500);
+		ColorRgb rgb = getRgbFromTemperature(temperature);
+
+		ColorCorrection *colorCorrection = _hyperion->getTemperature(adjustmentId);
+		colorCorrection->_rgbCorrection.setcorrectionR(rgb.red);
+		colorCorrection->_rgbCorrection.setcorrectionG(rgb.green);
+		colorCorrection->_rgbCorrection.setcorrectionB(rgb.blue);
 	}
 
 	// commit the changes

libsrc/hyperion/Hyperion.cpp

@@ -26,6 +26,7 @@
 #include <leddevice/LedDeviceWrapper.h>
 
 #include <hyperion/MultiColorAdjustment.h>
+#include <hyperion/MultiColorCorrection.h>
 #include <hyperion/LinearColorSmoothing.h>
 
 #if defined(ENABLE_EFFECTENGINE)
@@ -56,6 +57,7 @@ Hyperion::Hyperion(quint8 instance, bool readonlyMode)
 	, _imageProcessor(nullptr)
 	, _muxer(nullptr)
 	, _raw2ledAdjustment(hyperion::createLedColorsAdjustment(static_cast<int>(_ledString.leds().size()), getSetting(settings::COLOR).object()))
+	, _raw2ledTemperature(hyperion::createLedColorsTemperature(static_cast<int>(_ledString.leds().size()), getSetting(settings::COLOR).object()))
 	, _ledDeviceWrapper(nullptr)
 	, _deviceSmooth(nullptr)
 #if defined(ENABLE_EFFECTENGINE)
@@ -100,6 +102,11 @@ void Hyperion::start()
 	// get newVideoMode from HyperionIManager
 	connect(this, &Hyperion::newVideoMode, this, &Hyperion::handleNewVideoMode);
 
+	if (!_raw2ledTemperature->verifyCorrections())
+	{
+		Warning(_log, "Color temperature incorrectly set");
+	}
+
 	if (!_raw2ledAdjustment->verifyAdjustments())
 	{
 		Warning(_log, "At least one led has no color calibration, please add all leds from your led layout to an 'LED index' field!");
@@ -219,6 +226,9 @@ void Hyperion::freeObjects()
 
 	delete _raw2ledAdjustment;
 
+	// delete the color temperature correction
+	delete _raw2ledTemperature;
+
 #if defined(ENABLE_FORWARDER)
 	delete _messageForwarder;
 #endif
@@ -247,6 +257,15 @@ void Hyperion::handleSettingsUpdate(settings::type type, const QJsonDocument& co
 		{
 			Warning(_log, "At least one led has no color calibration, please add all leds from your led layout to an 'LED index' field!");
 		}
+
+		// change in color recreate ledTemperature
+		delete _raw2ledTemperature;
+		_raw2ledTemperature = hyperion::createLedColorsTemperature(static_cast<int>(_ledString.leds().size()), obj);
+
+		if (!_raw2ledTemperature->verifyCorrections())
+		{
+			Warning(_log, "At least one led has no color calibration, please add all leds from your led layout to an 'LED index' field!");
+		}
 	}
 	else if(type == settings::LEDS)
 	{
@@ -279,6 +298,10 @@ void Hyperion::handleSettingsUpdate(settings::type type, const QJsonDocument& co
 		delete _raw2ledAdjustment;
 		_raw2ledAdjustment = hyperion::createLedColorsAdjustment(static_cast<int>(_ledString.leds().size()), getSetting(settings::COLOR).object());
 
+		// change in leds recreate ledTemperature
+		delete _raw2ledTemperature;
+		_raw2ledTemperature = hyperion::createLedColorsTemperature(static_cast<int>(_ledString.leds().size()), getSetting(settings::COLOR).object());
+
 		#if defined(ENABLE_EFFECTENGINE)
 		// start cached effects
 		_effectEngine->startCachedEffects();
@@ -494,17 +517,33 @@ QStringList Hyperion::getAdjustmentIds() const
 	return _raw2ledAdjustment->getAdjustmentIds();
 }
 
+QStringList Hyperion::getTemperatureIds() const
+{
+	return _raw2ledTemperature->getCorrectionIds();
+}
+
 ColorAdjustment * Hyperion::getAdjustment(const QString& id) const
 {
 	return _raw2ledAdjustment->getAdjustment(id);
 }
 
+ColorCorrection * Hyperion::getTemperature(const QString& id) const
+{
+	return _raw2ledTemperature->getCorrection(id);
+}
+
 void Hyperion::adjustmentsUpdated()
 {
 	emit adjustmentChanged();
 	update();
 }
 
+void Hyperion::temperaturesUpdated()
+{
+	emit adjustmentChanged();
+	update();
+}
+
 bool Hyperion::clear(int priority, bool forceClearAll)
 {
 	bool isCleared = false;
@@ -680,6 +719,7 @@ void Hyperion::update()
 	emit rawLedColors(_ledBuffer);
 
 	_raw2ledAdjustment->applyAdjustment(_ledBuffer);
+	_raw2ledTemperature->applyCorrection(_ledBuffer);
 
 	int i = 0;
 	for (ColorRgb& color : _ledBuffer)

libsrc/hyperion/MultiColorCorrection.cpp

@@ -0,0 +1,103 @@
+// Hyperion includes
+#include <utils/Logger.h>
+#include <hyperion/MultiColorCorrection.h>
+
+MultiColorCorrection::MultiColorCorrection(int ledCnt) :
+	_ledCorrections(ledCnt, nullptr)
+, _log(Logger::getInstance("CORRECTION"))
+{
+}
+
+MultiColorCorrection::~MultiColorCorrection()
+{
+	// Clean up all the correctinos
+	for (ColorCorrection * correction : _correction)
+	{
+		delete correction;
+	}
+}
+
+void MultiColorCorrection::addCorrection(ColorCorrection * correction)
+{
+	_correctionIds.push_back(correction->_id);
+	_correction.push_back(correction);
+}
+
+void MultiColorCorrection::setCorrectionForLed(const QString& id, int startLed, int endLed)
+{
+	// abort
+	if(startLed > endLed)
+	{
+		Error(_log,"startLed > endLed -> %d > %d", startLed, endLed);
+		return;
+	}
+	// catch wrong values
+	if(endLed > static_cast<int>(_ledCorrections.size()-1))
+	{
+		Warning(_log,"The color correction 'LED index' field has LEDs specified which aren't part of your led layout");
+		endLed = static_cast<int>(_ledCorrections.size()-1);
+	}
+
+	// Get the identified correction (don't care if is nullptr)
+	ColorCorrection * correction = getCorrection(id);
+	for (int iLed=startLed; iLed<=endLed; ++iLed)
+	{
+		_ledCorrections[iLed] = correction;
+	}
+}
+
+bool MultiColorCorrection::verifyCorrections() const
+{
+	bool ok = true;
+	for (unsigned iLed=0; iLed<_ledCorrections.size(); ++iLed)
+	{
+		ColorCorrection* adjustment = _ledCorrections[iLed];
+
+		if (adjustment == nullptr)
+		{
+			Warning(_log, "No correction set for led %d", iLed);
+			ok = false;
+		}
+	}
+	return ok;
+}
+
+QStringList & MultiColorCorrection::getCorrectionIds()
+{
+	return _correctionIds;
+}
+
+ColorCorrection* MultiColorCorrection::getCorrection(const QString& id)
+{
+	// Iterate through the unique corrections until we find the one with the given id
+	for (ColorCorrection * correction : _correction)
+	{
+		if (correction->_id == id)
+		{
+			return correction;
+		}
+	}
+
+	// The ColorCorrection was not found
+	return nullptr;
+}
+
+void MultiColorCorrection::applyCorrection(std::vector<ColorRgb>& ledColors)
+{
+	const size_t itCnt = qMin(_ledCorrections.size(), ledColors.size());
+	for (size_t i=0; i<itCnt; ++i)
+	{
+		ColorCorrection * correction = _ledCorrections[i];
+		if (correction == nullptr)
+		{
+			std::cout << "MultiColorCorrection::applyCorrection() - No correction set for this led : " << i << std::endl;
+			// No correction set for this led (do nothing)
+			continue;
+		}
+		ColorRgb& color = ledColors[i];
+
+		color.red   = correction->_rgbCorrection.correctionR(color.red);
+		color.green = correction->_rgbCorrection.correctionG(color.green);
+		color.blue  = correction->_rgbCorrection.correctionB(color.blue);
+	}
+}

libsrc/hyperion/schema/schema-color.json

@@ -221,6 +221,18 @@
 						"step" : 0.1,
 						"propertyOrder" : 16
 					},
+					"temperature" :
+					{
+						"type" : "integer",
+						"title" : "edt_conf_color_temperature_title",
+						"required" : true,
+						"minimum" : 1000,
+						"maximum": 40000,
+						"default" : 6600,
+						"step" : 100,
+						"append" : "edt_append_kelvin",
+						"propertyOrder" : 17
+					},
 					"gammaRed" :
 					{
 						"type" : "number",
@@ -230,7 +242,7 @@
 						"maximum": 100.0,
 						"default" : 2.2,
 						"step" : 0.1,
-						"propertyOrder" : 17
+						"propertyOrder" : 18
 					},
 					"gammaGreen" :
 					{
@@ -241,7 +253,7 @@
 						"maximum": 100.0,
 						"default" : 2.2,
 						"step" : 0.1,
-						"propertyOrder" : 18
+						"propertyOrder" : 19
 					},
 					"gammaBlue" :
 					{
@@ -252,7 +264,7 @@
 						"maximum": 100.0,
 						"default" : 2.2,
 						"step" : 0.1,
-						"propertyOrder" : 19
+						"propertyOrder" : 20
 					}
 				},
 				"additionalProperties" : false

libsrc/utils/RgbChannelCorrection.cpp

@@ -0,0 +1,120 @@
+// 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;
+	}
+		
+
+}
+