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diff --git a/source/blender/compositor/intern/COM_MemoryProxy.h b/source/blender/compositor/intern/COM_MemoryProxy.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
+ */
+
+class MemoryProxy;
+
+
+#ifndef _COM_MemoryProxy_h
+#define _COM_MemoryProxy_h
+#include "COM_ExecutionGroup.h"
+#include "COM_MemoryManagerState.h"
+
+class ExecutionGroup;
+
+/**
+  * @brief A MemoryProxy is a unique identifier for a memory buffer.
+  * A single MemoryProxy is used among all chunks of the same buffer,
+  * the MemoryBuffer only stores the data of a single chunk.
+  * @ingroup Memory
+  */
+class MemoryProxy {
+private:
+	/**
+	  * @brief reference to the ouput operation of the executiongroup
+	  */
+	WriteBufferOperation *writeBufferOperation;
+	
+	/**
+	  * @brief reference to the executor. the Execution group that can fill a chunk
+	  */
+	ExecutionGroup *executor;
+	
+	/**
+	  * @brief data of the different chunks.
+	  * @note state is part of this class due to optimization in the MemoryManager
+	  */
+	MemoryManagerState * state;
+	
+	/**
+	  * @brief datatype of this MemoryProxy
+	  */
+	DataType datatype;
+	
+	/**
+	  * @brief channel information of this buffer
+	  */
+	ChannelInfo channelInfo[COM_NUMBER_OF_CHANNELS];
+public:
+	MemoryProxy();
+	~MemoryProxy();
+	
+	/**
+	  * @brief set the ExecutionGroup that can be scheduled to calculate a certain chunk.
+	  * @param group the ExecutionGroup to set
+	  */
+	void setExecutor(ExecutionGroup *executor) {this->executor = executor;}
+	
+	/**
+	  * @brief get the ExecutionGroup that can be scheduled to calculate a certain chunk.
+	  */
+	ExecutionGroup* getExecutor() {return this->executor;}
+	
+	/**
+	  * @brief set the WriteBufferOperation that is responsible for writing to this MemoryProxy
+	  * @param operation
+	  */
+	void setWriteBufferOperation(WriteBufferOperation* operation) {this->writeBufferOperation = operation;}
+	
+	/**
+	  * @brief get the WriteBufferOperation that is responsible for writing to this MemoryProxy
+	  * @return WriteBufferOperation
+	  */
+	WriteBufferOperation* getWriteBufferOperation() {return this->writeBufferOperation;}
+	
+	/**
+	  * @brief set the memorymanager state of this MemoryProxy, this is set from the MemoryManager
+	  * @param state the state to set
+	  */
+	void setState(MemoryManagerState *state) {this->state = state;}
+	
+	/**
+	  * @brief get the state of this MemoryProxy
+	  * @return MemoryManagerState reference to the state of this MemoryProxy.
+	  */
+	MemoryManagerState* getState() {return this->state;}
+};
+
+#endif