DtIndirectGeometryRenderer.h

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/******************************************************************************
** Copyright (c) 2023 VT-MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvOsg/DtIndirectGeometryRendererUserData.h>
#include <vrvUtil/DtSignalConnectionManager.h>

#include <osg/Drawable>
#include <osg/RenderInfo>
#include <osg/Matrixd>
#include <osg/ref_ptr>
#include <osg/observer_ptr>

#include <tbb/concurrent_hash_map.h>
#include <tbb/concurrent_unordered_set.h>

namespace osg
{
   class StateSet;
   class Camera;
   class RenderInfo;
   class NodeVisitor;
}

namespace makVrv
{
   class DtDe;

   class DtIndirectGeometry;

   class DtThreadCameraStreamDataManager;
   class DtIndirectGeometryRendererUserData;
   class DtKeyedData;

   class DtIndirectRunTimeSettings;

   class DtIndirectGeometryRenderer;

   typedef DtVirtualBaseClassCreator<DtIndirectGeometryRenderer, const std::string&> DtIndirectGeometryRendererCreator;

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

   class DT_DLL_VRVOSG DtIndirectGeometryRenderer : public osg::Drawable
   {
   public:
      friend DtIndirectGeometryRendererCreator;
   protected:
      DtIndirectGeometryRenderer(DtDe& de, const std::string& name);

      virtual ~DtIndirectGeometryRenderer();
   private:
      DtIndirectGeometryRenderer() = delete;
      DtIndirectGeometryRenderer& operator=(const DtIndirectGeometryRenderer& rhs) = delete;
   public:
      virtual void accept(osg::NodeVisitor& nv) override;

      virtual void drawImplementation(osg::RenderInfo& renderInfo) const override;

      virtual void add(DtIndirectGeometry* indirectGeometry, const osg::Matrixd& modelViewMatrix
      , const osg::Camera* camera);

      static const std::string& theClassName(void);   
   protected:
      DtDe& myDe;

      // state set (bin) for the default components
      osg::ref_ptr<osg::StateSet> myDefaultDrawStateSet;

      // state set (bin) for the light point components
      osg::ref_ptr<osg::StateSet> myLightPointDrawStateSet;

      // state set (bin) for depth only components
      osg::ref_ptr<osg::StateSet> myDepthOnlyDrawStateSet;

      DtIndirectRunTimeSettings* myIndirectRunTimeSettings = nullptr;

      DtThreadCameraStreamDataManager& myTcsDataManager;

      const std::string myName;

      DtIndirectGeometryRendererUserDataCreator& myUserDataCreator;
   };
}