DtIndirectGeometryGrid.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 <vrvOsg/DtIndirectCellHasher.h>

#include <vrvGraphicsUtils/DtVector3.h>
#include <vrvGraphicsUtils/DtAxisAlignedBoundingBox.h>

#include <vrvUtil/DtVirtualBaseClass.h>

#include <osg/Node>

#include <boost/thread.hpp>
#include <unordered_map>

namespace makVrv
{
   class DtDe;
   class DtIndirectGeometry;
   class DtIndirectModelsContainer;

   class DT_DLL_VRVOSG DtIndirectGeometryGrid
   {
   public:

      // The map of a cell 'id' to its corresponding indirect geometry
      typedef std::unordered_map<Vector3_int, osg::ref_ptr<DtIndirectGeometry>, DtIndirectCellHasher> MapCellIdsToIndirectGeometry;

      // The map of a cell 'id' to its corresponding debug drawable
      typedef std::unordered_map<Vector3_int, osg::ref_ptr<osg::Drawable>, DtIndirectCellHasher > MapCellIdsToDebugCellDrawables;
   public:
      DtIndirectGeometryGrid(DtDe& de);

      virtual ~DtIndirectGeometryGrid();

   private:
      DtIndirectGeometryGrid() = delete;
      DtIndirectGeometryGrid(const DtIndirectGeometryGrid &other) = delete;
      DtIndirectGeometryGrid &operator=(const DtIndirectGeometryGrid &other) = delete;

   public:
      virtual DtIndirectGeometry* ts_getOrCreateForCell(const Vector3_int& cellId, bool& created);

      virtual bool ts_removeCell(const Vector3_int& cellId);

      virtual Vector3_int cellIdFor(const Vector3_64& position) const;

      virtual Vector3_64 cellCenter(const Vector3_int& cellId) const;

      virtual AxisAlignedBoundingBox_64 GetAxisAlignedBoundingBox(const Vector3_int& cellId) const;

      virtual AxisAlignedBoundingBox_64 GetAxisAlignedBoundingBoxWithPadding(const Vector3_int& cellId) const;

      virtual DtIndirectModelsContainer* modelsContainer();

      virtual void setCellSize(const Vector3_64& cellSize);
      virtual const Vector3_64& cellSize(void) const;

      virtual void setCellPadding(const Vector3_64& padding);
      virtual const Vector3_64& cellPadding(void) const;

      virtual osg::ref_ptr<osg::Node> gridNode();

      virtual const MapCellIdsToIndirectGeometry& mapCellIdsToIndirectGeometry(void) const;

      virtual const MapCellIdsToDebugCellDrawables& mapCellIdsToDebugCellDrawables(void) const;

   protected:

      DtDe& myDe;

      // The parent group for all indirect geometries in the grid
      osg::ref_ptr<osg::Node> myGridNode;

      MapCellIdsToIndirectGeometry myMapCellIdsToIndirectGeometry;

      MapCellIdsToDebugCellDrawables myMapCellIdsToDebugCellDrawables;

      DtIndirectModelsContainer* myModelsContainer;

      Vector3_64 myCellSize;

      Vector3_64 myCellPadding;

      boost::mutex myMapCellIdsToIndirectGeometryMutex;

   };

   class DT_DLL_VRVOSG DtIndirectGeometryGridCreator : public DtVirtualBaseClass
   {
   public:
      DtIndirectGeometryGridCreator(DtDe &de);

      virtual ~DtIndirectGeometryGridCreator();

      virtual DtIndirectGeometryGrid* create() const;

      static DtIndirectGeometryGridCreator& instance(DtDe& de);

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