/*
 * 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_CompositorOperation_h
#define _COM_CompositorOperation_h
#include "COM_NodeOperation.h"
#include "BLI_rect.h"
#include "BLI_string.h"

/**
 * @brief Compositor output operation
 */
class CompositorOperation : public NodeOperation {
private:
	/**
	 * @brief Scene name, used for getting the render output, includes 'SC' prefix.
	 */
	char m_sceneName[MAX_ID_NAME];

	/**
	 * @brief local reference to the scene
	 */
	const RenderData *m_rd;

	/**
	 * @brief reference to the output float buffer
	 */
	float *m_outputBuffer;

	/**
	 * @brief reference to the output depth float buffer
	 */
	float *m_depthBuffer;

	/**
	 * @brief local reference to the input image operation
	 */
	SocketReader *m_imageInput;

	/**
	 * @brief local reference to the input alpha operation
	 */
	SocketReader *m_alphaInput;

	/**
	 * @brief local reference to the depth operation
	 */
	SocketReader *m_depthInput;

	/**
	 * @brief Ignore any alpha input
	 */
	bool m_useAlphaInput;

	/**
	 * @brief operation is active for calculating final compo result
	 */
	bool m_active;

	/**
	 * @brief View name, used for multiview
	 */
	const char *m_viewName;
public:
	CompositorOperation();
	const bool isActiveCompositorOutput() const { return this->m_active; }
	void executeRegion(rcti *rect, unsigned int tileNumber);
	void setSceneName(const char *sceneName) { BLI_strncpy(this->m_sceneName, sceneName, sizeof(this->m_sceneName)); }
	void setViewName(const char *viewName) { this->m_viewName = viewName; }
	void setRenderData(const RenderData *rd) { this->m_rd = rd; }
	bool isOutputOperation(bool /*rendering*/) const { return this->isActiveCompositorOutput(); }
	void initExecution();
	void deinitExecution();
	const CompositorPriority getRenderPriority() const { return COM_PRIORITY_MEDIUM; }
	void determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2]);
	void setUseAlphaInput(bool value) { this->m_useAlphaInput = value; }
	void setActive(bool active) { this->m_active = active; }
};
#endif