DtLoadImageOnDemandCallback2D.h

Go to the documentation of this file.

/******************************************************************************
** Copyright (c) 2020 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/

#pragma once

#include <osg/Texture2D>
#include <string>

namespace makVrv
{
   class DtLoadImageOnDemandCallback2D : public osg::Texture2D::SubloadCallback
   {
   public:
      // ctor
      DtLoadImageOnDemandCallback2D(const osg::Image& originalImage
         , osg::Texture::InternalFormatMode mode
         , const std::string& parentFilePath);

      virtual ~DtLoadImageOnDemandCallback2D();
   private:
      DtLoadImageOnDemandCallback2D() = delete;

      DtLoadImageOnDemandCallback2D(const DtLoadImageOnDemandCallback2D&) = delete;

      DtLoadImageOnDemandCallback2D& operator=(const DtLoadImageOnDemandCallback2D&) = delete;
   protected:
      virtual void load(const osg::Texture2D& texture, osg::State& state) const override;

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

   protected:

      const osg::Image::Origin myImageOrigin;

      const int myS, myT, myR;

      const GLint myTextureInternalFormat;
      const GLenum myPixelFormat;
      const GLenum myDataType;
      const osg::Texture::InternalFormatMode myMode;

      std::string myFileName;

      const unsigned int myPacking;

      std::string myLoadLocation, mySourceLocation;
   };
}