DtHdrBlurShaderGenerator.h

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/******************************************************************************
** Copyright (c) 2016 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/
// This file is derived from the HDR NVIDIA gameworks SDK example
//----------------------------------------------------------------------------------
// File:        es3aep-kepler\HDR/BlurShaderGenerator.h
// SDK Version: v2.11 
// Email:       gameworks@nvidia.com
// Site:        http://developer.nvidia.com/
//
// Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
//
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#pragma once


// Get proper local export symbol
#include <vrvPostProcessor/vrvPostProcessor.h>

namespace osg
{
   class Program;
}

namespace makVrv
{
   //three helper functions for the DtHdrDrawable. These create a blur shader based on the inputs.
   DT_DLL_VRVPOSTPROCESSOR float *generateGaussianWeights(float s, int &n);
   DT_DLL_VRVPOSTPROCESSOR float *generateTriangleWeights(int width);
   DT_DLL_VRVPOSTPROCESSOR osg::Program *generate1DConvolutionFP_filter(float *weights, int width, bool vertical, bool tex2D, int imgWidth, int imgHeight);
}