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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_DYNAMICS_H
#define PT_DYNAMICS_H
#include "PxPhysXConfig.h"
#if PX_USE_PARTICLE_SYSTEM_API
#include "PtConfig.h"
#include "PtParticle.h"
#include "PtDynamicsParameters.h"
#include "PtDynamicsTempBuffers.h"
#include "CmBitMap.h"
#include "CmTask.h"
namespace physx
{
namespace Pt
{
struct ParticleCell;
struct PacketSections;
struct PacketHaloRegions;
class Dynamics
{
public:
Dynamics(class ParticleSystemSimCpu& particleSystem);
~Dynamics();
void clear();
void updateSph(physx::PxBaseTask& continuation);
PX_FORCE_INLINE DynamicsParameters& getParameter()
{
return mParams;
}
private:
// Table to get the neighboring halo region indices for a packet section
struct SectionToHaloTable
{
PxU32 numHaloRegions;
PxU32 haloRegionIndices[19]; // No packet section has more than 19 neighboring halo regions
};
struct OrderedIndexTable
{
OrderedIndexTable();
PxU32 indices[PT_SUBPACKET_PARTICLE_LIMIT_FORCE_DENSITY];
};
struct TaskData
{
PxU16 beginPacketIndex;
PxU16 endPacketIndex;
};
void adjustTempBuffers(PxU32 count);
void schedulePackets(SphUpdateType::Enum updateType, physx::PxBaseTask& continuation);
void processPacketRange(PxU32 taskDataIndex);
void updatePacket(SphUpdateType::Enum updateType, PxVec3* forceBuf, Particle* particles, const ParticleCell& packet,
const PacketSections& packetSections, const PacketHaloRegions& haloRegions,
struct DynamicsTempBuffers& tempBuffers);
void updatePacketLocalHash(SphUpdateType::Enum updateType, PxVec3* forceBuf, Particle* particles,
const ParticleCell& packet, const PacketSections& packetSections,
const PacketHaloRegions& haloRegions, DynamicsTempBuffers& tempBuffers);
void updateSubpacketPairHalo(PxVec3* __restrict forceBufA, Particle* __restrict particlesSpA, PxU32 numParticlesSpA,
ParticleCell* __restrict particleCellsSpA, PxU32* __restrict particleIndicesSpA,
bool& isLocalHashSpAValid, PxU32 numCellHashBucketsSpA,
Particle* __restrict particlesSpB, PxU32 numParticlesSpB,
ParticleCell* __restrict particleCellsSpB, PxU32* __restrict particleIndicesSpB,
const PxVec3& packetCorner, SphUpdateType::Enum updateType,
PxU16* __restrict hashKeyArray, DynamicsTempBuffers& tempBuffers);
PX_FORCE_INLINE void updateParticlesBruteForceHalo(SphUpdateType::Enum updateType, PxVec3* forceBuf,
Particle* particles, const PacketSections& packetSections,
const PacketHaloRegions& haloRegions,
DynamicsTempBuffers& tempBuffers);
void mergeDensity(physx::PxBaseTask* continuation);
void mergeForce(physx::PxBaseTask* continuation);
private:
Dynamics& operator=(const Dynamics&);
static SectionToHaloTable sSectionToHaloTable[26]; // Halo region table for each packet section
static OrderedIndexTable sOrderedIndexTable;
PX_ALIGN(16, DynamicsParameters mParams);
class ParticleSystemSimCpu& mParticleSystem;
Particle* mTempReorderedParticles;
PxVec3* mTempParticleForceBuf;
typedef Cm::DelegateTask<Dynamics, &Dynamics::mergeDensity> MergeDensityTask;
typedef Cm::DelegateTask<Dynamics, &Dynamics::mergeForce> MergeForceTask;
MergeDensityTask mMergeDensityTask;
MergeForceTask mMergeForceTask;
PxU32 mNumTasks;
SphUpdateType::Enum mCurrentUpdateType;
PxU32 mNumTempBuffers;
DynamicsTempBuffers mTempBuffers[PT_MAX_PARALLEL_TASKS_SPH];
TaskData mTaskData[PT_MAX_PARALLEL_TASKS_SPH];
friend class DynamicsSphTask;
};
} // namespace Pt
} // namespace physx
#endif // PX_USE_PARTICLE_SYSTEM_API
#endif // PT_DYNAMICS_H
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