DtScalableOsgChannel.h

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/******************************************************************************
 * Copyright (c) 2024 MAK Technologies, Inc.
 * All rights reserved.
 ******************************************************************************/


#pragma once

#include <vrvScalableDisplay/vrvScalableDisplay.h>

#include <vrvOsg/DtOsgChannel.h>

namespace makVrv 
{
   class DtOsgWindow;
   class DtWindowManager;
   class DtWindowConfiguration;

   namespace vrvScalableDisplay
   {
      // Calls EasyBlendSDK_TransformInputToOutput from the EasyBlend SDK
      // to perform warp & blend
      class DT_DLL_VRVSCALABLEDISPLAY DtScalableSwapCallback : 
         public osg::GraphicsContext::SwapCallback
      {
      public:
         DtScalableSwapCallback(DtDe* de) : myDe(de) {};

         void swapBuffersImplementation(osg::GraphicsContext *) override;

      protected:
         DtDe* myDe;
      };


      class DT_DLL_VRVSCALABLEDISPLAY DtScalableOsgChannel 
         : public DtOsgChannel
      {
      public:

        friend class DtScalableOsgChannelCreator;

        
         virtual ~DtScalableOsgChannel();

         virtual void updateProjection() override;

      protected:

         DtScalableOsgChannel(DtDe& de, DtWindow* window, 
            DtChannelConfiguration& channelConfig);

         void makeObserverToCameraMatrix( osg::Vec3d& orient, 
            osg::Matrixd& offsetObserverToCamera, osg::Matrixd& observerToCamera ) override; 
         void makeObserverToCameraMatrix( osg::Quat& qObserverToWorld, 
            osg::Matrixd& offsetObserverToCamera, osg::Matrixd& observerToCamera ) override;

       virtual bool initialize() override;

      protected:
         osg::ref_ptr<DtScalableSwapCallback> mySwapCallback;
      };

      class DT_DLL_VRVSCALABLEDISPLAY DtScalableOsgChannelCreator : 
         public DtChannelCreator
      {
      public:
         virtual DtChannel* create(DtDe& de, DtWindow* window, 
            DtChannelConfiguration& config) override;
      };
   }
}