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diff --git a/source/blender/compositor/intern/COM_Device.h b/source/blender/compositor/intern/COM_Device.h
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index 00000000000..74a9400f8f3
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+++ b/source/blender/compositor/intern/COM_Device.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_Device_h
+#define _COM_Device_h
+
+#include "COM_ExecutionSystem.h"
+#include "COM_WorkPackage.h"
+#include "COM_NodeOperation.h"
+#include "BLI_rect.h"
+#include "COM_MemoryBuffer.h"
+
+/**
+  * @brief Abstract class for device implementations to be used by the Compositor.
+  * devices are queried, initialized and used by the WorkScheduler.
+  * work are packaged as a WorkPackage instance.
+  */
+class Device {
+public:
+	/**
+	  * @brief initialize the device
+	  */
+	virtual bool initialize() {return true;}
+
+	/**
+	  * @brief deinitialize the device
+	  */
+	virtual void deinitialize() {}
+
+	/**
+	  * @brief execute a WorkPackage
+	  * @param work the WorkPackage to execute
+	  */
+	virtual void execute(WorkPackage *work) = 0;
+
+};
+
+#endif