DtLoadImageOnDemandCallback2D.h

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/******************************************************************************
** Copyright (c) 2017 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/
/******************************************************************************
** $RCSfile: DtLoadImageOnDemandCallback2D.h,v $ $Revision: 1.7 $ $State: Exp $
******************************************************************************/

#pragma once

#include <osg/Texture2D>

namespace makVrv
{
   class DtLoadImageOnDemandCallback2D : public osg::Texture2D::SubloadCallback
   {
   public:

   
      DtLoadImageOnDemandCallback2D(const osg::Image& originalImage,
         osg::Texture::InternalFormatMode mode, const std::string& parentFilePath);


      virtual void load(const osg::Texture2D& texture, osg::State& state) const;
      virtual void subload(const osg::Texture2D& texture, osg::State& state) const;

   private:

      std::string _fileName;
      osg::Image::Origin _origin;
      int _s, _t, _r;
      GLint _internalTextureFormat;
      GLenum _pixelFormat;
      GLenum _dataType;
      unsigned int _packing;
      osg::Texture::InternalFormatMode _mode;
      std::string _loadLocation, _sourceLocation;
   };
}