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diff --git a/canvas/source/directx/dx_spritedevicehelper.hxx b/canvas/source/directx/dx_spritedevicehelper.hxx
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+++ b/canvas/source/directx/dx_spritedevicehelper.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ * 
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef _DXCANVAS_SPRITEDEVICEHELPER_HXX
+#define _DXCANVAS_SPRITEDEVICEHELPER_HXX
+
+#include <com/sun/star/awt/Rectangle.hpp>
+#include <com/sun/star/rendering/XGraphicDevice.hpp>
+#include <com/sun/star/rendering/XBufferController.hpp>
+
+#include "dx_rendermodule.hxx"
+#include "dx_surfacebitmap.hxx"
+#include "dx_devicehelper.hxx"
+
+#include <canvas/rendering/isurfaceproxymanager.hxx>
+
+#include <boost/utility.hpp>
+
+
+namespace dxcanvas
+{
+    class SpriteCanvas;
+    class SpriteCanvasHelper;
+
+    class SpriteDeviceHelper : public DeviceHelper
+    {
+    public:
+        SpriteDeviceHelper();
+
+        void init( Window&                                  rWindow,
+                   SpriteCanvas&                            rSpriteCanvas,
+                   const ::com::sun::star::awt::Rectangle&	rRect,
+                   bool                                     bFullscreen );
+
+        /// Dispose all internal references
+        void disposing();
+
+        // partial override XWindowGraphicDevice
+        ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > createCompatibleBitmap(
+            const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >& 	rDevice,
+            const ::com::sun::star::geometry::IntegerSize2D& 										size );
+        ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XVolatileBitmap > createVolatileBitmap(
+            const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >& 	rDevice,
+            const ::com::sun::star::geometry::IntegerSize2D& 										size );
+        ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > createCompatibleAlphaBitmap(
+            const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >& 	rDevice,
+            const ::com::sun::star::geometry::IntegerSize2D& 										size );
+        ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XVolatileBitmap > createVolatileAlphaBitmap(
+            const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >& 	rDevice,
+            const ::com::sun::star::geometry::IntegerSize2D& 										size );
+
+        sal_Bool hasFullScreenMode(  );
+        sal_Bool enterFullScreenMode( sal_Bool bEnter );
+
+        ::sal_Int32 createBuffers( ::sal_Int32 nBuffers );
+        void 		destroyBuffers(  );
+        ::sal_Bool  showBuffer( bool bIsVisible, ::sal_Bool bUpdateAll );
+        ::sal_Bool  switchBuffer( bool bIsVisible, ::sal_Bool bUpdateAll );
+
+        const IDXRenderModuleSharedPtr& getRenderModule() const { return mpRenderModule; }
+        const DXSurfaceBitmapSharedPtr&	getBackBuffer() const { return mpBackBuffer; }
+        const ::canvas::ISurfaceProxyManagerSharedPtr &getSurfaceProxy() const { return mpSurfaceProxyManager; }
+
+        ::com::sun::star::uno::Any isAccelerated() const;
+
+        void notifySizeUpdate( const ::com::sun::star::awt::Rectangle& rBounds );
+
+        /** called when DumpScreenContent property is enabled on
+            XGraphicDevice, and writes out bitmaps of current screen.
+         */
+        void dumpScreenContent() const;
+
+    private:
+        void resizeBackBuffer( const ::basegfx::B2ISize& rNewSize );
+        HWND getHwnd() const;
+
+        /// Pointer to sprite canvas (owner of this helper), needed to create bitmaps
+        SpriteCanvas*                           mpSpriteCanvas;
+
+        DXSurfaceBitmapSharedPtr                mpBackBuffer;
+
+        /// Instance passing out HW textures
+        ::canvas::ISurfaceProxyManagerSharedPtr mpSurfaceProxyManager;
+
+        /// Our encapsulation interface to DirectX
+        IDXRenderModuleSharedPtr                mpRenderModule;
+    };
+}
+
+#endif /* _DXCANVAS_SPRITEDEVICEHELPER_HXX */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */