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diff --git a/source/blender/compositor/intern/COM_MemoryManagerState.h b/source/blender/compositor/intern/COM_MemoryManagerState.h
new file mode 100644
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@@ -0,0 +1,87 @@
+/*
+ * 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 MemoryManagerState;
+
+#ifndef _COM_MemoryManagerState_h_
+#define _COM_MemoryManagerState_h_
+
+#include "COM_MemoryProxy.h"
+#include "COM_MemoryBuffer.h"
+#include <vector>
+extern "C" {
+	#include "BLI_threads.h"
+}
+
+/**
+  * @brief State of a MemoryProxy in the MemoryManager.
+  * @ingroup Memory
+  */
+class MemoryManagerState {
+private:
+	/**
+	  * @brief reference to the MemoryProxy of this state
+	  */
+	MemoryProxy *memoryProxy;
+	
+	/**
+	  * @brief list of all chunkbuffers
+	  */
+	MemoryBuffer** chunkBuffers;
+	
+	/**
+	  * @brief size of the chunkBuffers
+	  */
+	unsigned int currentSize;
+	
+	/**
+	  * @brief lock to this memory for multithreading
+	  */
+	ThreadMutex mutex;
+public:
+	/**
+	  * @brief creates a new MemoryManagerState for a certain MemoryProxy.
+	  */
+	MemoryManagerState(MemoryProxy * memoryProxy);
+	/**
+	  * @brief destructor
+	  */
+	~MemoryManagerState();
+	
+	/**
+	  * @brief get the reference to the MemoryProxy this state belongs to.
+	  */
+	MemoryProxy *getMemoryProxy();
+	
+	/**
+	  * @brief add a new memorybuffer to the state
+	  */
+	void addMemoryBuffer(MemoryBuffer* buffer);
+	
+	/**
+	  * @brief get the MemoryBuffer assiciated to a chunk.
+	  * @param chunkNumber the chunknumber
+	  */
+	MemoryBuffer* getMemoryBuffer(unsigned int chunkNumber);
+};
+
+#endif