PxParticleExt.h

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/*
 * Copyright (c) 2008-2015, NVIDIA CORPORATION.  All rights reserved.
 *
 * NVIDIA CORPORATION and its licensors retain all intellectual property
 * and proprietary rights in and to this software, related documentation
 * and any modifications thereto.  Any use, reproduction, disclosure or
 * distribution of this software and related documentation without an express
 * license agreement from NVIDIA CORPORATION is strictly prohibited.
 */
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  


#ifndef PX_PHYSICS_EXTENSIONS_PARTICLEEXT_H
#define PX_PHYSICS_EXTENSIONS_PARTICLEEXT_H

#include "PxPhysXConfig.h"
#include "foundation/PxStrideIterator.h"
#include "foundation/PxBounds3.h"

#ifndef PX_DOXYGEN
namespace physx
{
#endif

class PxParticleExt
{
public:

    struct ParticleBounds
    {
        PxBounds3 bounds;
        PxU32 firstParticle;
        PxU32 numParticles;     
    };

    static PxU32 buildBoundsHash(PxU32* sortedParticleIndices,
                                 ParticleBounds* particleBounds,
                                 const PxStrideIterator<const PxVec3>& positionBuffer,
                                 const PxU32 validParticleRange,
                                 const PxU32* validParticleBitmap,
                                 const PxU32 hashSize,
                                 const PxU32 maxBounds,
                                 const PxReal gridSpacing);

    class IndexPool
    {
    public:
        virtual     PxU32   allocateIndices(PxU32 num, const PxStrideIterator<PxU32>& indexBuffer)      = 0;
        
        virtual     void    freeIndices(PxU32 num, const PxStrideIterator<const PxU32>& indexBuffer)    = 0;
        
        virtual     void    freeIndices()                                                               = 0;
        
        virtual     void    release()                                                                   = 0;

        virtual ~IndexPool() {}
    };

    static IndexPool* createIndexPool(PxU32 maxParticles);
    
    static IndexPool* createIndexPool(PxU32 maxParticles, PxU32 validParticleRange, const PxU32* validParticleBitmap);

};

#ifndef PX_DOXYGEN
} // namespace physx
#endif

#endif