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00003 //
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00010 // 
00011 // ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
00012 // NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
00013 // THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
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00017 // However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
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00019 // result from its use. No license is granted by implication or otherwise under any patent
00020 // or patent rights of NVIDIA Corporation. Details are subject to change without notice.
00021 // This code supersedes and replaces all information previously supplied.
00022 // NVIDIA Corporation products are not authorized for use as critical
00023 // components in life support devices or systems without express written approval of
00024 // NVIDIA Corporation.
00025 //
00026 // Copyright (c) 2008-2012 NVIDIA Corporation. All rights reserved.
00027 // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
00028 // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  
00029 
00030 
00031 #ifndef PX_PHYSICS_EXTENSIONS_PARTICLEEXT_H
00032 #define PX_PHYSICS_EXTENSIONS_PARTICLEEXT_H
00033 
00037 #include "PxPhysX.h"
00038 #include "foundation/PxStrideIterator.h"
00039 #include "foundation/PxBounds3.h"
00040 
00041 #ifndef PX_DOXYGEN
00042 namespace physx
00043 {
00044 #endif
00045 
00046 class PxParticleExt
00047 {
00048 public:
00049 
00050     struct ParticleBounds
00051     {
00052         PxBounds3 bounds;
00053         PxU32 firstParticle;
00054         PxU32 numParticles;     
00055     };
00056 
00094     static PxU32 buildBoundsHash(PxU32* sortedParticleIndices,
00095                                  ParticleBounds* particleBounds,
00096                                  const PxStrideIterator<const PxVec3>& positionBuffer,
00097                                  const PxU32 validParticleRange,
00098                                  const PxU32* validParticleBitmap,
00099                                  const PxU32 hashSize,
00100                                  const PxU32 maxBounds,
00101                                  const PxReal gridSpacing);
00102 
00110     class IndexPool
00111     {
00112     public:
00119         virtual     PxU32   allocateIndices(PxU32 num, const PxStrideIterator<PxU32>& indexBuffer)      = 0;
00120         
00127         virtual     void    freeIndices(PxU32 num, const PxStrideIterator<const PxU32>& indexBuffer)    = 0;
00128         
00132         virtual     void    freeIndices()                                                               = 0;
00133         
00137         virtual     void    release()                                                                   = 0;
00138 
00142         virtual ~IndexPool() {};
00143     };
00144 
00149     static IndexPool* createIndexPool(PxU32 maxParticles);
00150     
00157     static IndexPool* createIndexPool(PxU32 maxParticles, PxU32 validParticleRange, const PxU32* validParticleBitmap);
00158 
00159 };
00160 
00161 #ifndef PX_DOXYGEN
00162 } // namespace physx
00163 #endif
00164 
00166 #endif