/*
 * Copyright 2011, Blender Foundation.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * Contributor:
 *		Jeroen Bakker
 *		Monique Dewanchand
 */

#ifndef _COM_ColorSpillOperation_h
#define _COM_ColorSpillOperation_h
#include "COM_NodeOperation.h"

/**
  * this program converts an input colour to an output value.
  * it assumes we are in sRGB colour space.
  */
class ColorSpillOperation : public NodeOperation {
protected:
	NodeColorspill *settings;
	SocketReader *inputImageReader;
	SocketReader *inputFacReader;
	int spillChannel;
	int channel2;
	int channel3;
	float rmut, gmut, bmut;
public:
	/**
	  * Default constructor
	  */
	ColorSpillOperation();

	/**
	  * the inner loop of this program
	  */
	void executePixel(float* color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]);

	void initExecution();
	void deinitExecution();

	void setSettings(NodeColorspill* nodeColorSpill) {this->settings= nodeColorSpill;}
	void setSpillChannel(int channel) {this->spillChannel = channel;}
	
	float calculateMapValue(float fac, float *input);
};

class ColorSpillAverageOperation: public ColorSpillOperation {
public:
	float calculateMapValue(float fac, float *input);
};
#endif