213 lines
8.7 KiB
C
213 lines
8.7 KiB
C
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2019 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PXC_NPTHREADCONTEXT_H
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#define PXC_NPTHREADCONTEXT_H
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#include "geometry/PxGeometry.h"
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#include "geomutils/GuContactBuffer.h"
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#include "PxvConfig.h"
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#include "CmScaling.h"
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#include "CmRenderOutput.h"
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#include "PxcNpCacheStreamPair.h"
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#include "PxcConstraintBlockStream.h"
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#include "PxcThreadCoherentCache.h"
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#include "CmBitMap.h"
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#include "../pcm/GuPersistentContactManifold.h"
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namespace physx
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{
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class PxsTransformCache;
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class PxsMaterialManager;
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namespace Sc
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{
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class BodySim;
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}
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/*!
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Per-thread context used by contact generation routines.
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*/
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struct PxcDataStreamPool
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{
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PxU8* mDataStream;
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PxI32 mSharedDataIndex;
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PxU32 mDataStreamSize;
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PxU32 mSharedDataIndexGPU;
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bool isOverflown() const
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{
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//FD: my expectaton is that reading those variables is atomic, shared indices are non-decreasing,
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//so we can only get a false overflow alert because of concurrency issues, which is not a big deal as it means
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//it did overflow a bit later
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return mSharedDataIndex + mSharedDataIndexGPU >= mDataStreamSize;
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}
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};
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struct PxcNpContext
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{
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private:
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PX_NOCOPY(PxcNpContext)
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public:
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PxcNpContext() :
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mNpMemBlockPool (mScratchAllocator),
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mMeshContactMargin (0.0f),
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mToleranceLength (0.0f),
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mCreateContactStream (false),
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mContactStreamPool (NULL),
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mPatchStreamPool (NULL),
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mForceAndIndiceStreamPool(NULL),
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mMaterialManager (NULL)
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{
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}
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PxcScratchAllocator mScratchAllocator;
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PxcNpMemBlockPool mNpMemBlockPool;
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PxReal mMeshContactMargin;
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PxReal mToleranceLength;
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Cm::RenderBuffer mRenderBuffer;
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bool mCreateContactStream; // flag to enforce that contacts are stored persistently per workunit. Used for PVD.
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PxcDataStreamPool* mContactStreamPool;
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PxcDataStreamPool* mPatchStreamPool;
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PxcDataStreamPool* mForceAndIndiceStreamPool;
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PxcDataStreamPool* mConstraintWriteBackStreamPool;
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PxsMaterialManager* mMaterialManager;
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PX_FORCE_INLINE PxReal getToleranceLength() const { return mToleranceLength; }
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PX_FORCE_INLINE void setToleranceLength(PxReal x) { mToleranceLength = x; }
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PX_FORCE_INLINE PxReal getMeshContactMargin() const { return mMeshContactMargin; }
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PX_FORCE_INLINE void setMeshContactMargin(PxReal x) { mMeshContactMargin = x; }
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PX_FORCE_INLINE bool getCreateContactStream() { return mCreateContactStream; }
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PX_FORCE_INLINE PxcNpMemBlockPool& getNpMemBlockPool() { return mNpMemBlockPool; }
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PX_FORCE_INLINE const PxcNpMemBlockPool& getNpMemBlockPool() const { return mNpMemBlockPool; }
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PX_FORCE_INLINE void setMaterialManager(PxsMaterialManager* m){ mMaterialManager = m; }
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PX_FORCE_INLINE PxsMaterialManager* getMaterialManager() const { return mMaterialManager; }
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Cm::RenderOutput getRenderOutput() { return Cm::RenderOutput(mRenderBuffer); }
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};
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class PxcNpThreadContext : public PxcThreadCoherentCache<PxcNpThreadContext, PxcNpContext>::EntryBase
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{
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PX_NOCOPY(PxcNpThreadContext)
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public:
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PxcNpThreadContext(PxcNpContext* params);
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~PxcNpThreadContext();
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#if PX_ENABLE_SIM_STATS
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void clearStats();
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#endif
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PX_FORCE_INLINE void setCreateContactStream(bool to) { mCreateContactStream = to; }
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PX_FORCE_INLINE void addLocalNewTouchCount(PxU32 newTouchCMCount) { mLocalNewTouchCount += newTouchCMCount; }
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PX_FORCE_INLINE void addLocalLostTouchCount(PxU32 lostTouchCMCount) { mLocalLostTouchCount += lostTouchCMCount; }
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PX_FORCE_INLINE PxU32 getLocalNewTouchCount() const { return mLocalNewTouchCount; }
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PX_FORCE_INLINE PxU32 getLocalLostTouchCount() const { return mLocalLostTouchCount; }
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PX_FORCE_INLINE void addLocalFoundPatchCount(PxU32 foundPatchCount) { mLocalFoundPatchCount += foundPatchCount; }
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PX_FORCE_INLINE void addLocalLostPatchCount(PxU32 lostPatchCount) { mLocalLostPatchCount += lostPatchCount; }
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PX_FORCE_INLINE PxU32 getLocalFoundPatchCount() const { return mLocalFoundPatchCount; }
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PX_FORCE_INLINE PxU32 getLocalLostPatchCount() const { return mLocalLostPatchCount; }
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PX_FORCE_INLINE Cm::BitMap& getLocalChangeTouch() { return mLocalChangeTouch; }
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PX_FORCE_INLINE Cm::BitMap& getLocalPatchChangeMap() { return mLocalPatchCountChange; }
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void reset(PxU32 cmCount);
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// debugging
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Cm::RenderOutput mRenderOutput;
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// dsequeira: Need to think about this block pool allocation a bit more. Ideally we'd be
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// taking blocks from a single pool, except that we want to be able to selectively reclaim
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// blocks if the user needs to defragment, depending on which artifacts they're willing
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// to tolerate, such that the blocks we don't reclaim are contiguous.
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#if PX_ENABLE_SIM_STATS
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PxU32 mDiscreteContactPairs [PxGeometryType::eGEOMETRY_COUNT][PxGeometryType::eGEOMETRY_COUNT];
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PxU32 mModifiedContactPairs [PxGeometryType::eGEOMETRY_COUNT][PxGeometryType::eGEOMETRY_COUNT];
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#endif
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PxcContactBlockStream mContactBlockStream; // constraint block pool
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PxcNpCacheStreamPair mNpCacheStreamPair; // narrow phase pairwise data cache
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// Everything below here is scratch state. Most of it can even overlap.
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// temporary contact buffer
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Gu::ContactBuffer mContactBuffer;
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PX_ALIGN(16, Gu::MultiplePersistentContactManifold mTempManifold);
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Gu::NarrowPhaseParams mNarrowPhaseParams;
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// DS: this stuff got moved here from the PxcNpPairContext. As Pierre says:
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////////// PT: those members shouldn't be there in the end, it's not necessary
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Ps::Array<Sc::BodySim*> mBodySimPool;
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PxsTransformCache* mTransformCache;
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PxReal* mContactDistance;
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bool mPCM;
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bool mContactCache;
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bool mCreateContactStream; // flag to enforce that contacts are stored persistently per workunit. Used for PVD.
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bool mCreateAveragePoint; // flag to enforce whether we create average points
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#if PX_ENABLE_SIM_STATS
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PxU32 mCompressedCacheSize;
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PxU32 mNbDiscreteContactPairsWithCacheHits;
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PxU32 mNbDiscreteContactPairsWithContacts;
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#endif
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PxReal mDt; // AP: still needed for ccd
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PxU32 mCCDPass;
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PxU32 mCCDFaceIndex;
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PxU32 mMaxPatches;
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//PxU32 mTotalContactCount;
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PxU32 mTotalCompressedCacheSize;
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//PxU32 mTotalPatchCount;
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PxcDataStreamPool* mContactStreamPool;
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PxcDataStreamPool* mPatchStreamPool;
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PxcDataStreamPool* mForceAndIndiceStreamPool; //this stream is used to store the force buffer and triangle index if we are performing mesh/heightfield contact gen
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PxcDataStreamPool* mConstraintWriteBackStreamPool;
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PxsMaterialManager* mMaterialManager;
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private:
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// change touch handling.
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Cm::BitMap mLocalChangeTouch;
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Cm::BitMap mLocalPatchCountChange;
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PxU32 mLocalNewTouchCount;
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PxU32 mLocalLostTouchCount;
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PxU32 mLocalFoundPatchCount;
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PxU32 mLocalLostPatchCount;
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};
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}
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#endif
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