DtHdrRenderTexture.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/RenderTexture.h
// SDK Version: v2.11 
// Email:       gameworks@nvidia.com
// Site:        http://developer.nvidia.com/
//
// Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//  * Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//  * Neither the name of NVIDIA CORPORATION nor the names of its
//    contributors may be used to endorse or promote products derived
//    from this software without specific prior written permission.
//
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//----------------------------------------------------------------------------------

#pragma once


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

#include <GL/glew.h>
#include <osg/Texture2D>

namespace makVrv
{

   class DT_DLL_VRVPOSTPROCESSOR DtRenderTexture {
   public:

      enum ColorType {
         RG16F,
         RGB16F,
         RGB32F,
         RGBA16F,
      };

      DtRenderTexture();
      virtual ~DtRenderTexture();

      virtual bool init(int width, int height, ColorType color, 
         osg::Texture2D::FilterMode minFilter = osg::Texture2D::LINEAR, 
         osg::Texture2D::WrapMode = osg::Texture2D::CLAMP_TO_BORDER);

      virtual void activateFB();
      virtual int getWidth(); 
      virtual int getHeight(); 
      virtual void bind(); 
      virtual void release();
      virtual unsigned int getTexId();

   protected:
      int myWidth;
      int myHeight;
      unsigned int myFormat;
      unsigned int myType;
      unsigned int myFboId;
      unsigned int myTexId;
   };

}