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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 _GPUBlurFilter_H_
#define _GPUBlurFilter_H_
#include "../api.h"
#include "GPUFilter.h"
#include "GLShaderParam.h"
#include "GLTexture.h"
namespace avg {
class AVG_API GPUBlurFilter: public GPUFilter
{
public:
GPUBlurFilter(const IntPoint& size, PixelFormat pfSrc, PixelFormat pfDest,
float stdDev, bool bClipBorders, bool bStandalone=true,
bool bUseFloatKernel=false);
virtual ~GPUBlurFilter();
void setStdDev(float stdDev);
virtual void applyOnGPU(GLTexturePtr pSrcTex);
private:
void setDimensions(IntPoint size, float stdDev, bool bClipBorders);
float m_StdDev;
bool m_bClipBorders;
bool m_bUseFloatKernel;
GLTexturePtr m_pGaussCurveTex;
ImagingProjectionPtr m_pProjection2;
FloatGLShaderParamPtr m_pHorizWidthParam;
IntGLShaderParamPtr m_pHorizRadiusParam;
IntGLShaderParamPtr m_pHorizTextureParam;
IntGLShaderParamPtr m_pHorizKernelTexParam;
FloatGLShaderParamPtr m_pVertWidthParam;
IntGLShaderParamPtr m_pVertRadiusParam;
IntGLShaderParamPtr m_pVertTextureParam;
IntGLShaderParamPtr m_pVertKernelTexParam;
};
typedef boost::shared_ptr<GPUBlurFilter> GPUBlurFilterPtr;
}
#endif
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