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diff --git a/source/blender/compositor/operations/COM_ImageOperation.h b/source/blender/compositor/operations/COM_ImageOperation.h
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+++ b/source/blender/compositor/operations/COM_ImageOperation.h
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+/*
+ * 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_ImageOperation_h
+#define _COM_ImageOperation_h
+
+#include "COM_NodeOperation.h"
+#include "DNA_scene_types.h"
+#include "BLI_listbase.h"
+#include "BKE_image.h"
+extern "C" {
+	#include "RE_pipeline.h"
+	#include "RE_shader_ext.h"
+	#include "RE_render_ext.h"
+	#include "MEM_guardedalloc.h"
+}
+
+/**
+  * @brief Base class for all image operations
+  */
+class BaseImageOperation : public NodeOperation {
+protected:
+	ImBuf* buffer;
+	Image* image;
+	ImageUser* imageUser;
+	float *imageBuffer;
+	float *depthBuffer;
+	int imageheight;
+	int imagewidth;
+	int framenumber;
+	int numberOfChannels;
+	
+	BaseImageOperation();
+	/**
+	  * Determine the output resolution. The resolution is retrieved from the Renderer
+	  */
+	void determineResolution(unsigned int resolution[], unsigned int preferredResolution[]);
+	
+	virtual ImBuf* getImBuf();
+
+public:
+	
+	void initExecution();
+	void deinitExecution();
+	void setImage(Image* image) {this->image = image;}
+	void setImageUser(ImageUser* imageuser) {this->imageUser = imageuser;}
+	
+	void setFramenumber(int framenumber) {this->framenumber = framenumber;}
+};
+class ImageOperation: public BaseImageOperation {
+public:
+	/**
+	  * Constructor
+	  */
+	ImageOperation();
+	void executePixel(float *color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]);
+};
+class ImageAlphaOperation: public BaseImageOperation {
+public:
+	/**
+	  * Constructor
+	  */
+	ImageAlphaOperation();
+	void executePixel(float *color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]);
+};
+class ImageDepthOperation: public BaseImageOperation {
+public:
+	/**
+	  * Constructor
+	  */
+	ImageDepthOperation();
+	void executePixel(float *color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]);
+};
+#endif