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  // Copyright (c) 2008-2017 NVIDIA Corporation. All rights reserved.
  // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
  // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  
  
  #ifndef GU_SHAPECONVEX_H
  #define GU_SHAPECONVEX_H
  
  #include "GuConvexMeshData.h"
  #include "CmScaling.h"
  
  namespace physx
  {
  namespace Gu
  {
  	struct PolygonalData;
  	typedef void	(*HullPrefetchCB)		(PxU32 numVerts, const PxVec3* PX_RESTRICT verts);
  	typedef void	(*HullProjectionCB)		(const PolygonalData& data, const PxVec3& dir, const Cm::Matrix34& world2hull, const Cm::FastVertex2ShapeScaling& scaling, PxReal& minimum, PxReal& maximum);
  	typedef PxU32	(*SelectClosestEdgeCB)	(const PolygonalData& data, const Cm::FastVertex2ShapeScaling& scaling, const PxVec3& localDirection);
  
  	struct PolygonalData
  	{
  		// Data
  		PxVec3								mCenter;
  		PxU32								mNbVerts;
  		PxU32								mNbPolygons;
  		PxU32								mNbEdges;
  		const Gu::HullPolygonData*			mPolygons;
  		const PxVec3*						mVerts;
  		const PxU8*							mPolygonVertexRefs;
  		const PxU8*							mFacesByEdges;
  		const PxU16*						mVerticesByEdges;
  
  		Gu::InternalObjectsData				mInternal;
  		union
  		{
  			const Gu::BigConvexRawData*		mBigData;	// Only for big convexes
  			const PxVec3*					mHalfSide;	// Only for boxes
  		};
  
  		// Code
  		HullProjectionCB					mProjectHull;
  		SelectClosestEdgeCB					mSelectClosestEdgeCB;
  
  		PX_FORCE_INLINE const PxU8*	getPolygonVertexRefs(const Gu::HullPolygonData& poly)	const
  		{
  			return mPolygonVertexRefs + poly.mVRef8;
  		}
  	};
  
  #if PX_VC 
      #pragma warning(push)
  	#pragma warning( disable : 4251 ) // class needs to have dll-interface to be used by clients of class
  #endif
  	class PX_PHYSX_COMMON_API PolygonalBox
  	{
  	public:
  									PolygonalBox(const PxVec3& halfSide);
  
  			void					getPolygonalData(PolygonalData* PX_RESTRICT dst)	const;
  
  			const PxVec3&			mHalfSide;
  			PxVec3					mVertices[8];
  			Gu::HullPolygonData		mPolygons[6];
  	private:
  			PolygonalBox& operator=(const PolygonalBox&);
  	};
  #if PX_VC 
       #pragma warning(pop) 
  #endif
  
  	void getPolygonalData_Convex(PolygonalData* PX_RESTRICT dst, const Gu::ConvexHullData* PX_RESTRICT src, const Cm::FastVertex2ShapeScaling& scaling);
  }
  }
  
  #endif
  