/*
 * 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_DILATEERODEOPERATION_H__
#define __COM_DILATEERODEOPERATION_H__
#include "COM_NodeOperation.h"


class DilateErodeThresholdOperation : public NodeOperation {
private:
	/**
	 * Cached reference to the inputProgram
	 */
	SocketReader *m_inputProgram;

	float m_distance;
	float m__switch;
	float m_inset;

	/**
	 * determines the area of interest to track pixels
	 * keep this one as small as possible for speed gain.
	 */
	int m_scope;
public:
	DilateErodeThresholdOperation();

	/**
	 * the inner loop of this program
	 */
	void executePixel(float output[4], int x, int y, void *data);

	/**
	 * Initialize the execution
	 */
	void initExecution();

	void *initializeTileData(rcti *rect);
	/**
	 * Deinitialize the execution
	 */
	void deinitExecution();

	void setDistance(float distance) { this->m_distance = distance; }
	void setSwitch(float sw) { this->m__switch = sw; }
	void setInset(float inset) { this->m_inset = inset; }

	bool determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output);

};

class DilateDistanceOperation : public NodeOperation {
private:
protected:
	/**
	 * Cached reference to the inputProgram
	 */
	SocketReader *m_inputProgram;
	float m_distance;
	int m_scope;
public:
	DilateDistanceOperation();

	/**
	 * the inner loop of this program
	 */
	void executePixel(float output[4], int x, int y, void *data);

	/**
	 * Initialize the execution
	 */
	void initExecution();

	void *initializeTileData(rcti *rect);
	/**
	 * Deinitialize the execution
	 */
	void deinitExecution();

	void setDistance(float distance) { this->m_distance = distance; }
	bool determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output);

	void executeOpenCL(OpenCLDevice *device,
	                   MemoryBuffer *outputMemoryBuffer, cl_mem clOutputBuffer,
	                   MemoryBuffer **inputMemoryBuffers, list<cl_mem> *clMemToCleanUp,
	                   list<cl_kernel> *clKernelsToCleanUp);
};
class ErodeDistanceOperation : public DilateDistanceOperation {
public:
	ErodeDistanceOperation();

	/**
	 * the inner loop of this program
	 */
	void executePixel(float output[4], int x, int y, void *data);

	void executeOpenCL(OpenCLDevice *device,
	                   MemoryBuffer *outputMemoryBuffer, cl_mem clOutputBuffer,
	                   MemoryBuffer **inputMemoryBuffers, list<cl_mem> *clMemToCleanUp,
	                   list<cl_kernel> *clKernelsToCleanUp);
};

class DilateStepOperation : public NodeOperation {
protected:
	/**
	 * Cached reference to the inputProgram
	 */
	SocketReader *m_inputProgram;

	int m_iterations;

public:
	DilateStepOperation();

	/**
	 * the inner loop of this program
	 */
	void executePixel(float output[4], int x, int y, void *data);

	/**
	 * Initialize the execution
	 */
	void initExecution();

	void *initializeTileData(rcti *rect);
	/**
	 * Deinitialize the execution
	 */
	void deinitExecution();
	void deinitializeTileData(rcti *rect, void *data);

	void setIterations(int iterations) { this->m_iterations = iterations; }

	bool determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output);
};

class ErodeStepOperation : public DilateStepOperation {
public:
	ErodeStepOperation();

	void *initializeTileData(rcti *rect);
};

#endif