Added simple QT-based grabber.

Moved ImageToLedsMap from include to libsrc.
Moved instantiation of objects to Hyperion (no JSON required outside this class).

include/hyperion/DispmanxWrapper.h

@@ -0,0 +1,32 @@
+#pragma once
+
+// QT includes
+#include <QObject>
+#include <QTimer>
+
+// Forward class declaration
+class ImageProcessor;
+class DispmanxFrameGrabber;
+
+class DispmanxWrapper: public QObject
+{
+	Q_OBJECT
+public:
+	DispmanxWrapper();
+
+	virtual ~DispmanxWrapper();
+
+public slots:
+	void start();
+
+	void action();
+
+	void stop();
+
+private:
+	QTimer _timer;
+
+	DispmanxFrameGrabber* _frameGrabber;
+	ImageProcessor* _processor;
+};
+

include/hyperion/Hyperion.h

@@ -4,9 +4,14 @@
 // hyperion-utils includes
 #include <utils/RgbImage.h>
 
+// Hyperion includes
 #include <hyperion/LedString.h>
-#include <hyperion/ImageToLedsMap.h>
 #include <hyperion/LedDevice.h>
+#include <hyperion/PriorityMuxer.h>
+
+// Forward class declaration
+namespace hyperion { class ColorTransform; }
+
 
 class Hyperion
 {
@@ -15,27 +20,18 @@ public:
 
 	~Hyperion();
 
-	void setInputSize(const unsigned width, const unsigned height);
-
-	RgbImage& image()
-	{
-		return *mImage;
-	}
-
-	void commit();
-
-	void operator() (const RgbImage& inputImage);
-
-	void setColor(const RgbColor& color);
+	void setValue(int priority, std::vector<RgbColor> &ledColors);
 
 private:
 	void applyTransform(std::vector<RgbColor>& colors) const;
 
 	LedString mLedString;
 
-	RgbImage* mImage;
+	PriorityMuxer mMuxer;
 
-	ImageToLedsMap mLedsMap;
+	hyperion::ColorTransform* mRedTransform;
+	hyperion::ColorTransform* mGreenTransform;
+	hyperion::ColorTransform* mBlueTransform;
 
 	LedDevice* mDevice;
 };

include/hyperion/ImageProcessor.h

@@ -0,0 +1,72 @@
+
+#pragma once
+
+// Utils includes
+#include <utils/RgbImage.h>
+
+#include <hyperion/LedString.h>
+#include <hyperion/ImageProcessorFactory.h>
+
+// Forward class declaration
+namespace hyperion { class ImageToLedsMap;
+					 class ColorTransform; }
+
+/**
+ * The ImageProcessor translates an RGB-image to RGB-values for the leds. The processing is
+ * performed in two steps. First the average color per led-region is computed. Second a
+ * color-tranform is applied based on a gamma-correction.
+ */
+class ImageProcessor
+{
+public:
+	/**
+	 * Processes the image to a list of led colors. This will update the size of the buffer-image
+	 * if required and call the image-to-leds mapping to determine the mean color per led.
+	 *
+	 * @param[in] image  The image to translate to led values
+	 *
+	 * @return The color value per led
+	 */
+	std::vector<RgbColor> process(const RgbImage& image);
+
+	// 'IN PLACE' processing functions
+
+	/**
+	 * Specifies the width and height of 'incomming' images. This will resize the buffer-image to
+	 * match the given size.
+	 * NB All earlier obtained references will be invalid.
+	 *
+	 * @param[in] width   The new width of the buffer-image
+	 * @param[in] height  The new height of the buffer-image
+	 */
+	void setSize(const unsigned width, const unsigned height);
+
+	/**
+	 * Returns a reference of the underlying image-buffer. This can be used to write data directly
+	 * into the buffer, avoiding a copy inside the process method.
+	 *
+	 * @return The reference of the underlying image-buffer.
+	 */
+	RgbImage& image();
+
+	/**
+	 * Determines the led colors of the image in the buffer.
+	 *
+	 * @param[out] ledColors  The color value per led
+	 */
+	void inplace_process(std::vector<RgbColor>& ledColors);
+
+private:
+	friend class ImageProcessorFactory;
+
+	ImageProcessor(const LedString &ledString);
+
+	~ImageProcessor();
+
+private:
+	const LedString mLedString;
+
+	RgbImage *mBuffer;
+	hyperion::ImageToLedsMap* mImageToLeds;
+};
+

include/hyperion/ImageProcessorFactory.h

@@ -0,0 +1,26 @@
+#pragma once
+
+// STL includes
+#include <memory>
+
+// Jsoncpp includes
+#include <json/json.h>
+
+#include <hyperion/LedString.h>
+
+// Forward class declaration
+class ImageProcessor;
+
+class ImageProcessorFactory
+{
+public:
+	static ImageProcessorFactory& getInstance();
+
+public:
+	void init(const LedString& ledString);
+
+	ImageProcessor* newImageProcessor() const;
+
+private:
+	LedString _ledString;
+};

include/hyperion/ImageToLedsMap.h

@@ -1,27 +0,0 @@
-
-#pragma once
-
-// hyperion-utils includes
-#include <utils/RgbImage.h>
-
-// hyperion includes
-#include <hyperion/LedString.h>
-
-class ImageToLedsMap
-{
-public:
-
-	ImageToLedsMap();
-
-	void createMapping(const RgbImage& image, const std::vector<Led>& leds);
-
-	std::vector<RgbColor> getMeanLedColor();
-
-	RgbColor findMeanColor(const std::vector<const RgbColor*>& colors);
-
-	std::vector<RgbColor> getMedianLedColor();
-
-	RgbColor findMedianColor(std::vector<const RgbColor*>& colors);
-private:
-	std::vector<std::vector<const RgbColor*> > mColorsMap;
-};

include/hyperion/LedString.h

@@ -45,28 +45,16 @@ struct Led
 class LedString
 {
 public:
-	static LedString construct(const Json::Value& ledConfig, const Json::Value& colorConfig);
+	static LedString construct(const Json::Value& ledConfig);
 
 	LedString();
 
 	~LedString();
 
+	std::vector<Led>& leds();
+
 	const std::vector<Led>& leds() const;
 
 private:
 	std::vector<Led> mLeds;
-
-public:
-	/**
-	 * Color adjustements per color
-	 */
-	struct
-	{
-		/** The color gradient */
-		double gamma;
-		/** The color offset */
-		double adjust;
-		/** The minimum required level for the led to turn on */
-		double blacklevel;
-	} red, green, blue;
 };

include/hyperion/PriorityMuxer.h

@@ -0,0 +1,55 @@
+#pragma once
+
+// STL includes
+#include <vector>
+#include <map>
+#include <cstdint>
+#include <limits>
+
+// QT includes
+#include <QMap>
+
+// Utils includes
+#include <utils/RgbColor.h>
+
+// Hyperion includes
+#include <hyperion/LedDevice.h>
+
+class PriorityMuxer
+{
+public:
+	struct InputInfo
+	{
+		int priority;
+
+		int64_t timeoutTime_ms;
+		std::vector<RgbColor> ledColors;
+	};
+
+	PriorityMuxer();
+
+	~PriorityMuxer();
+
+	int getCurrentPriority() const;
+
+	bool hasPriority(const int priority) const;
+
+	QList<int> getPriorities() const;
+
+	const InputInfo& getInputInfo(const int priority) const;
+
+	void setInput(const int priority, const std::vector<RgbColor>& ledColors, const int64_t timeoutTime_ms=-1);
+
+	void clearInput(const int priority);
+
+	void clearAll();
+
+	void setCurrentTime(const int64_t& now);
+
+private:
+	int mCurrentPriority;
+
+	QMap<int, InputInfo> mActiveInputs;
+
+	const static int MAX_PRIORITY = std::numeric_limits<int>::max();
+};

include/utils/RgbColor.h

@@ -5,7 +5,6 @@
 #include <stdint.h>
 #include <iostream>
 
-
 // Forward class declaration
 struct RgbColor;
 
@@ -21,8 +20,12 @@ struct RgbColor
 	static RgbColor BLUE;
 	static RgbColor YELLOW;
 	static RgbColor WHITE;
+
 };
 
+static_assert(sizeof(RgbColor) == 3, "Incorrect size of RgbColor");
+
+
 inline std::ostream& operator<<(std::ostream& os, const RgbColor& color)
 {
 	os << "{" << unsigned(color.red) << "," << unsigned(color.green) << "," << unsigned(color.blue) << "}";