Added simple QT-based grabber.

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

libsrc/hyperion/ImageProcessor.cpp

@@ -0,0 +1,65 @@
+#include <hyperion/ImageProcessor.h>
+
+
+#include "ImageToLedsMap.h"
+#include "ColorTransform.h"
+
+using namespace hyperion;
+
+ImageProcessor::ImageProcessor(const LedString& ledString) :
+	mLedString(ledString),
+	mBuffer(nullptr),
+	mImageToLeds(nullptr)
+{
+	// empty
+}
+
+ImageProcessor::~ImageProcessor()
+{
+	delete mImageToLeds;
+	delete mBuffer;
+}
+
+std::vector<RgbColor> ImageProcessor::process(const RgbImage& image)
+{
+	// Ensure that the buffer-image is the proper size
+	setSize(image.width(), image.height());
+
+	// Copy the data of the given image into the mapped-image
+	mBuffer->copy(image);
+
+	// Create a result vector and call the 'in place' functionl
+	std::vector<RgbColor> colors(mLedString.leds().size(), RgbColor::BLACK);
+	inplace_process(colors);
+
+	// return the computed colors
+	return colors;
+}
+
+void ImageProcessor::setSize(const unsigned width, const unsigned height)
+{
+	// Check if the existing buffer-image is already the correct dimensions
+	if (mBuffer && mBuffer->width() == width && mBuffer->height() == height)
+	{
+		return;
+	}
+
+	// Clean up the old buffer and mapping
+	delete mImageToLeds;
+	delete mBuffer;
+
+	// Construct a new buffer and mapping
+	mBuffer = new RgbImage(width, height);
+	mImageToLeds = new ImageToLedsMap(*mBuffer, mLedString.leds());
+}
+
+RgbImage& ImageProcessor::image()
+{
+	return *mBuffer;
+}
+
+void ImageProcessor::inplace_process(std::vector<RgbColor>& ledColors)
+{
+	// Determine the mean-colors of each led (using the existing mapping)
+	mImageToLeds->getMeanLedColor(ledColors);
+}