DtVrsGazeMapUpdater.h

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/******************************************************************************
** Copyright (c) 2021 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/

#pragma once


#include "vrvVirtualReality/vrvVirtualReality.h"

#include <vrvOsg/DtVariableRateShadingImage.h>
#include <vrvOsg/DtVariableRateShadingImageUpdater.h>


namespace makVrv
{

   class DT_DLL_VRVVR DtVrsGazeMapUpdater : public DtVariableRateShadingImageUpdater
   {
   public:
      DtVrsGazeMapUpdater(DtDe& de, DtVariableRateShadingImage* vrsImage);

       virtual ~DtVrsGazeMapUpdater();

       void setEyeCenters(osg::Vec2 leftEye, osg::Vec2 rightEye);

   private:
      DtVrsGazeMapUpdater();

      DtVrsGazeMapUpdater(const DtVrsGazeMapUpdater&);

      DtVrsGazeMapUpdater& operator=(const DtVrsGazeMapUpdater&);

   protected:
      virtual void update(osg::State* state) const;

      virtual void initProgram(osg::State* state) const;

   protected:

       mutable GLint myEyeCenterUniformLocation;
       mutable GLint myEyeCenterLeftUniformLocation;
       mutable GLint myEyeCenterRightUniformLocation;
       mutable GLint myEdgeUniformLocation;
       mutable GLint myStepsUniformLocation;

       mutable osg::Vec2 myEyeCenters[2];

   };
}