DtIndirectAggregateHelper.h

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/******************************************************************************
** Copyright (c) 2019 VT-MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <osg/Geometry>

#include <string>
#include <vector>
#include <tbb/atomic.h>

namespace osg
{
   class Geometry;
}

namespace makVrv
{
   class DtIndirectGeometryTextures;
   class DtIndirectAggregateIndicesHelper;

   typedef std::vector<int> Indices;

   class DT_DLL_VRVOSG DtIndirectAggregateHelper
   {
   public:
      DtIndirectAggregateHelper();

      virtual ~DtIndirectAggregateHelper();

   private:
      DtIndirectAggregateHelper(const DtIndirectAggregateHelper &other);
      DtIndirectAggregateHelper &operator=(const DtIndirectAggregateHelper &other);

   public:
      virtual void setAggregateGeometry(osg::Geometry* aggregatedGeometry);
      
      virtual void setModelName(const std::string& modelname);

      virtual bool checkGeometryOk(const osg::Geometry& srcGeometry);

      virtual void copyVertices(const osg::Geometry& srcGeometry, const osg::Matrix & transform);

      virtual bool checkSrcAndDstVerticesOk(const osg::Geometry& srcGeometry);

      virtual void copyNormals(const osg::Geometry& srcGeometry);
      virtual bool checkSrcAndDstNormalsOk(const osg::Geometry& srcGeometry);

      virtual void copyColors(const osg::Geometry& srcGeometry);
      virtual bool checkSrcAndDstColorsOk(const osg::Geometry& srcGeometry);

      virtual void copyTextureCoords(const osg::Geometry& srcGeometry, const DtIndirectGeometryTextures* textureForThisGeometry);
  
      virtual bool checkSrcTextureCoordsOk(const osg::Geometry& srcGeometry);

      virtual bool checkDstIndicesOk(const osg::Geometry& srcGeometry);

      virtual void copyIndices(Indices& indices, const osg::Geometry& srcGeometry);
      
      virtual void cancel();

   protected:
      // used only for outputing debug messages
      std::string myModelFileName;

      osg::ref_ptr<osg::Geometry> myAggregatedGeometry;

      DtIndirectAggregateIndicesHelper* myIndicesHelper;

      tbb::atomic<int> myCancelTask;
   };
}