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// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and 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.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2008-2018 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 PT_PARTICLE_CONTACT_MANAGER_STREAM_H
#define PT_PARTICLE_CONTACT_MANAGER_STREAM_H
#include "PxPhysXConfig.h"
#if PX_USE_PARTICLE_SYSTEM_API
namespace physx
{
struct PxsRigidCore;
namespace Pt
{
class ParticleShape;
struct ParticleStreamContactManager
{
const PxsRigidCore* rigidCore;
const PxsShapeCore* shapeCore;
const PxTransform* w2sOld;
bool isDrain;
bool isDynamic;
};
struct ParticleStreamShape
{
const ParticleShape* particleShape;
PxU32 numContactManagers;
const ParticleStreamContactManager* contactManagers;
};
class ParticleContactManagerStreamWriter
{
public:
static PxU32 getStreamSize(PxU32 numParticleShapes, PxU32 numContactManagers)
{
return sizeof(PxU32) + // particle shape count
sizeof(PxU32) + // stream size
numParticleShapes * (sizeof(ParticleShape*) + sizeof(PxU32)) + // shape ll pointer + contact manager
// count per shape
numContactManagers * sizeof(ParticleStreamContactManager); // contact manager data
}
PX_FORCE_INLINE ParticleContactManagerStreamWriter(PxU8* stream, PxU32 numParticleShapes, PxU32 numContactManagers)
: mStream(stream), mNumContactsPtr(NULL)
{
PX_ASSERT(mStream);
*reinterpret_cast<PxU32*>(mStream) = numParticleShapes;
mStream += sizeof(PxU32);
*reinterpret_cast<PxU32*>(mStream) = getStreamSize(numParticleShapes, numContactManagers);
mStream += sizeof(PxU32);
}
PX_FORCE_INLINE void addParticleShape(const ParticleShape* particleShape)
{
*reinterpret_cast<const ParticleShape**>(mStream) = particleShape;
mStream += sizeof(const ParticleShape*);
mNumContactsPtr = reinterpret_cast<PxU32*>(mStream);
mStream += sizeof(PxU32);
*mNumContactsPtr = 0;
}
PX_FORCE_INLINE void addContactManager(const PxsRigidCore* rigidCore, const PxsShapeCore* shapeCore,
const PxTransform* w2sOld, bool isDrain, bool isDynamic)
{
ParticleStreamContactManager& cm = *reinterpret_cast<ParticleStreamContactManager*>(mStream);
mStream += sizeof(ParticleStreamContactManager);
cm.rigidCore = rigidCore;
cm.shapeCore = shapeCore;
cm.w2sOld = w2sOld;
cm.isDrain = isDrain;
cm.isDynamic = isDynamic;
PX_ASSERT(mNumContactsPtr);
(*mNumContactsPtr)++;
}
private:
PxU8* mStream;
PxU32* mNumContactsPtr;
};
class ParticleContactManagerStreamIterator
{
public:
PX_FORCE_INLINE ParticleContactManagerStreamIterator()
{
}
PX_FORCE_INLINE ParticleContactManagerStreamIterator(const PxU8* stream) : mStream(stream)
{
}
ParticleContactManagerStreamIterator getNext(ParticleStreamShape& next)
{
const ParticleShape* const* tmp0 = reinterpret_cast<const ParticleShape* const*>(mStream);
mStream += sizeof(ParticleShape*);
const PxU32* tmp1 = reinterpret_cast<const PxU32*>(mStream);
next.particleShape = *tmp0;
next.numContactManagers = *tmp1;
mStream += sizeof(PxU32);
next.contactManagers = reinterpret_cast<const ParticleStreamContactManager*>(mStream);
mStream += next.numContactManagers * sizeof(ParticleStreamContactManager);
return ParticleContactManagerStreamIterator(mStream);
}
PX_FORCE_INLINE ParticleContactManagerStreamIterator getNext()
{
mStream += sizeof(ParticleShape*);
PxU32 numContactManagers = *reinterpret_cast<const PxU32*>(mStream);
mStream += sizeof(PxU32);
mStream += numContactManagers * sizeof(ParticleStreamContactManager);
return ParticleContactManagerStreamIterator(mStream);
}
PX_FORCE_INLINE bool operator==(const ParticleContactManagerStreamIterator& it)
{
return mStream == it.mStream;
}
PX_FORCE_INLINE bool operator!=(const ParticleContactManagerStreamIterator& it)
{
return mStream != it.mStream;
}
PX_FORCE_INLINE const PxU8* getStream()
{
return mStream;
}
private:
friend class ParticleContactManagerStreamReader;
private:
const PxU8* mStream;
};
class ParticleContactManagerStreamReader
{
public:
/*
Reads header of stream consisting of shape count and stream end pointer
*/
PX_FORCE_INLINE ParticleContactManagerStreamReader(const PxU8* stream)
{
PX_ASSERT(stream);
mStreamDataBegin = stream;
mNumParticleShapes = *reinterpret_cast<const PxU32*>(mStreamDataBegin);
mStreamDataBegin += sizeof(PxU32);
PxU32 streamSize = *reinterpret_cast<const PxU32*>(mStreamDataBegin);
mStreamDataBegin += sizeof(PxU32);
mStreamDataEnd = stream + streamSize;
}
PX_FORCE_INLINE ParticleContactManagerStreamIterator getBegin() const
{
return ParticleContactManagerStreamIterator(mStreamDataBegin);
}
PX_FORCE_INLINE ParticleContactManagerStreamIterator getEnd() const
{
return ParticleContactManagerStreamIterator(mStreamDataEnd);
}
PX_FORCE_INLINE PxU32 getNumParticleShapes() const
{
return mNumParticleShapes;
}
private:
PxU32 mNumParticleShapes;
const PxU8* mStreamDataBegin;
const PxU8* mStreamDataEnd;
};
} // namespace Pt
} // namespace physx
#endif // PX_USE_PARTICLE_SYSTEM_API
#endif // PT_PARTICLE_CONTACT_MANAGER_STREAM_H
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