DtIndirectGeometryUpdateMainThreadJob.h

Go to the documentation of this file.

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


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvCore/DtVirtualBaseClassCreator.h>

#include <osg/OperationThread>
#include <osg/observer_ptr>
#include <osg/Matrix>

#include <boost/thread/mutex.hpp>
#include <tbb/atomic.h>
#include <stack>

namespace osg
{
   class Object;
   class Camera;
}

namespace makVrv
{
   class DtIndirectGeometry;

   class DtIndirectGeometryUpdateMainThreadJob;

   typedef DtVirtualBaseClassCreator<DtIndirectGeometryUpdateMainThreadJob, DtIndirectGeometry*> DtIndirectGeometryUpdateMainThreadJobCreator;

   template <>
   inline const char* creatorTypeName<DtIndirectGeometryUpdateMainThreadJob>(void) { return "DtIndirectGeometryUpdateMainThreadJobCreator"; }

   class DT_DLL_VRVOSG DtIndirectGeometryUpdateMainThreadJob : public osg::Operation
   {
   public:
      friend DtIndirectGeometryUpdateMainThreadJobCreator;

      virtual ~DtIndirectGeometryUpdateMainThreadJob();
   protected:
      DtIndirectGeometryUpdateMainThreadJob(DtDe& de, DtIndirectGeometry* geometry);
      
   private:
      DtIndirectGeometryUpdateMainThreadJob() = delete;
      DtIndirectGeometryUpdateMainThreadJob(const DtIndirectGeometryUpdateMainThreadJob& other) = delete;
      DtIndirectGeometryUpdateMainThreadJob &operator=(const DtIndirectGeometryUpdateMainThreadJob& other) = delete;

   public:
      virtual void operator() (osg::Object* sv);

      virtual void pushCameraAndMatrix(osg::Camera* camera, const osg::Matrix& modelView);

      virtual bool cameraMatrixStackEmpty();
      
   protected:
      osg::observer_ptr< DtIndirectGeometry >myIndirectGeometryObserverPtr;
      typedef std::pair<osg::observer_ptr<osg::Camera>, osg::Matrix> CameraMatrixPair;
      std::stack< CameraMatrixPair > myCameraMatrixStack;
      boost::mutex myCameraMatrixStackMutex;
      bool myCameraMatrixStackEmpty;

      DtDe& myDe;
   };
}