DtIndirectIndicesHelper.h

Go to the documentation of this file.

/******************************************************************************
** Copyright (c) 2022 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvGraphicsUtils/DtAssert.h>

#include <vector>
#include <string>

namespace osg
{
   class Geometry;
   class PrimitiveSet;
}

namespace makVrv
{
   class DtDe;

   class DT_DLL_VRVOSG DtIndirectIndicesHelper
   {
   public:
      DtIndirectIndicesHelper(DtDe& de);

      virtual ~DtIndirectIndicesHelper();

      DtIndirectIndicesHelper(const DtIndirectIndicesHelper&) = delete;

      DtIndirectIndicesHelper& operator=(const DtIndirectIndicesHelper&) = delete;

   public:
      virtual void copyIndices(std::vector<int>& indices, const osg::Geometry& srcGeometry) const;

      virtual int calculateNumIndices(const osg::Geometry& srcGeometry) const;

      virtual void setModelName(const std::string& modelname);

      virtual bool isModeSupported(int mode) const;

      virtual std::string toModeString(int mode) const;

   protected:
      virtual bool checkSrcIndicesOk(const osg::Geometry& srcGeometry) const;

      virtual bool checkAndCopyIndicesIfTriangleElements(std::vector<int>& indices, const osg::PrimitiveSet* primitiveSet) const;

      virtual bool checkAndCopyIndicesIfDrawArrays(std::vector<int>& indices, const osg::PrimitiveSet* primitiveSet) const;

      virtual void printDetailsPrimitiveSets(const osg::Geometry& geometry) const;

      virtual int calculateNumIndices(const osg::PrimitiveSet* primitiveSet) const;

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

      DtDe& myDe;
   };


}