Added multi colortransform (not working yet)

Former-commit-id: 691a0a9d83e57e00d305cf18718cab05156c2dce

libsrc/hyperion/MultiColorTransform.cpp

@@ -0,0 +1,105 @@
+
+// STL includes
+#include <cassert>
+
+// Hyperion includes
+#include "MultiColorTransform.h"
+
+MultiColorTransform::MultiColorTransform()
+{
+}
+
+MultiColorTransform::~MultiColorTransform()
+{
+	// Clean up all the transforms
+	for (ColorTransform * transform : _transform)
+	{
+		delete transform;
+	}
+}
+
+void MultiColorTransform::addTransform(const std::string & id,
+		const RgbChannelTransform & redTransform,
+		const RgbChannelTransform & greenTransform,
+		const RgbChannelTransform & blueTransform,
+		const HsvTransform & hsvTransform)
+{
+	ColorTransform * transform = new ColorTransform();
+	transform->_id = id;
+
+	transform->_rgbRedTransform   = redTransform;
+	transform->_rgbGreenTransform = greenTransform;
+	transform->_rgbBlueTransform  = blueTransform;
+
+	transform->_hsvTransform = hsvTransform;
+
+	_transform.push_back(transform);
+}
+
+void MultiColorTransform::setTransformForLed(const std::string& id, const unsigned startLed, const unsigned endLed)
+{
+	assert(startLed <= endLed);
+
+	// Make sure that there are at least enough led transforms to match the given indices
+	if (_ledTransforms.size() < endLed+1)
+	{
+		_ledTransforms.resize(endLed+1, nullptr);
+	}
+
+	// Get the identified transform (don't care if is nullptr)
+	ColorTransform * transform = getTransform(id);
+	for (unsigned iLed=startLed; iLed<=endLed; ++iLed)
+	{
+		_ledTransforms[iLed] = transform;
+	}
+}
+
+std::vector<std::string> MultiColorTransform::getTransformIds()
+{
+	// Create the list on the fly
+	std::vector<std::string> transformIds;
+	for (ColorTransform* transform : _transform)
+	{
+		transformIds.push_back(transform->_id);
+	}
+	return transformIds;
+}
+
+ColorTransform* MultiColorTransform::getTransform(const std::string& id)
+{
+	// Iterate through the unique transforms until we find the one with the given id
+	for (ColorTransform* transform : _transform)
+	{
+		if (transform->_id == id)
+		{
+			return transform;
+		}
+	}
+
+	// The ColorTransform was not found
+	return nullptr;
+}
+
+std::vector<ColorRgb> MultiColorTransform::applyTransform(const std::vector<ColorRgb>& rawColors)
+{
+	// Create a copy, as we will do the rest of the transformation in place
+	std::vector<ColorRgb> ledColors(rawColors);
+
+	const size_t itCnt = std::min(_transform.size(), rawColors.size());
+	for (size_t i=0; i<itCnt; ++i)
+	{
+		ColorTransform* transform = _ledTransforms[i];
+		if (transform == nullptr)
+		{
+			// No transform set for this led (do nothing)
+			continue;
+		}
+		ColorRgb& color = ledColors[i];
+
+		transform->_hsvTransform.transform(color.red, color.green, color.blue);
+		color.red   = transform->_rgbRedTransform.transform(color.red);
+		color.green = transform->_rgbGreenTransform.transform(color.green);
+		color.blue  = transform->_rgbBlueTransform.transform(color.blue);
+	}
+	return ledColors;
+}