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diff --git a/src/graphics/GPUFilter.h b/src/graphics/GPUFilter.h
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+++ b/src/graphics/GPUFilter.h
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+//
+//  libavg - Media Playback Engine. 
+//  Copyright (C) 2003-2014 Ulrich von Zadow
+//
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2 of the License, or (at your option) any later version.
+//
+//  This library 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 for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public
+//  License along with this library; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+//  Current versions can be found at www.libavg.de
+//
+
+#ifndef _GPUFilter_H_
+#define _GPUFilter_H_
+
+#include "../api.h"
+#include "Filter.h"
+#include "VertexArray.h"
+#include "Bitmap.h"
+#include "TextureMover.h"
+#include "FBO.h"
+
+namespace avg {
+
+class ImagingProjection;
+typedef boost::shared_ptr<ImagingProjection> ImagingProjectionPtr;
+class OGLShader;
+typedef boost::shared_ptr<OGLShader> OGLShaderPtr;
+
+class AVG_API GPUFilter: public Filter
+{
+public:
+    GPUFilter(const std::string& sShaderID, bool bUseAlpha, bool bStandalone=false,
+            unsigned numTextures=1, bool bMipmap=false);
+    GPUFilter(PixelFormat pfSrc, PixelFormat pfDest, bool bStandalone,
+            const std::string& sShaderID, unsigned numTextures=1, bool bMipmap=false);
+    virtual ~GPUFilter();
+
+    virtual BitmapPtr apply(BitmapPtr pBmpSource);
+    virtual void apply(GLTexturePtr pSrcTex);
+    virtual void applyOnGPU(GLTexturePtr pSrcTex) = 0;
+    GLTexturePtr getDestTex(int i=0) const;
+    BitmapPtr getImage() const;
+    FBOPtr getFBO(int i=0);
+
+    const IntRect& getDestRect() const;
+    const IntPoint& getSrcSize() const;
+    FRect getRelDestRect() const;
+    
+protected:
+    void setDimensions(const IntPoint& srcSize);
+    void setDimensions(const IntPoint& srcSize, const IntRect& destRect,
+            unsigned texMode);
+    const OGLShaderPtr& getShader() const;
+
+    void draw(GLTexturePtr pTex);
+    int getBlurKernelRadius(float stdDev) const;
+    GLTexturePtr calcBlurKernelTex(float stdDev, float opacity, bool bUseFloat) const;
+
+private:
+    PixelFormat m_PFSrc;
+    PixelFormat m_PFDest;
+    bool m_bStandalone;
+    unsigned m_NumTextures;
+    bool m_bMipmap;
+
+    GLTexturePtr m_pSrcTex;
+    TextureMoverPtr m_pSrcMover;
+    std::vector<FBOPtr> m_pFBOs;
+    IntPoint m_SrcSize;
+    IntRect m_DestRect;
+    OGLShaderPtr m_pShader;
+    ImagingProjectionPtr m_pProjection;
+};
+
+typedef boost::shared_ptr<GPUFilter> GPUFilterPtr;
+
+}
+#endif
+