155 lines
5.1 KiB
C++
155 lines
5.1 KiB
C++
//
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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_NPCACHE_H
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#define PXC_NPCACHE_H
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#include "foundation/PxMemory.h"
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#include "PsIntrinsics.h"
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#include "PxcNpCacheStreamPair.h"
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#include "PsPool.h"
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#include "PsFoundation.h"
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#include "GuContactMethodImpl.h"
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#include "PsUtilities.h"
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namespace physx
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{
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template <typename T>
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void PxcNpCacheWrite(PxcNpCacheStreamPair& streams,
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Gu::Cache& cache,
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const T& payload,
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PxU32 bytes,
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const PxU8* data)
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{
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const PxU32 payloadSize = (sizeof(payload)+3)&~3;
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cache.mCachedSize = Ps::to16((payloadSize + 4 + bytes + 0xF)&~0xF);
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PxU8* ls = streams.reserve(cache.mCachedSize);
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cache.mCachedData = ls;
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if(ls==NULL || (reinterpret_cast<PxU8*>(-1))==ls)
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{
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if(ls==NULL)
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{
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PX_WARN_ONCE(
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"Reached limit set by PxSceneDesc::maxNbContactDataBlocks - ran out of buffer space for narrow phase. "
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"Either accept dropped contacts or increase buffer size allocated for narrow phase by increasing PxSceneDesc::maxNbContactDataBlocks.");
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return;
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}
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else
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{
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PX_WARN_ONCE(
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"Attempting to allocate more than 16K of contact data for a single contact pair in narrowphase. "
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"Either accept dropped contacts or simplify collision geometry.");
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cache.mCachedData = NULL;
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ls = NULL;
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return;
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}
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}
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*reinterpret_cast<T*>(ls) = payload;
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*reinterpret_cast<PxU32*>(ls+payloadSize) = bytes;
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if(data)
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PxMemCopy(ls+payloadSize+sizeof(PxU32), data, bytes);
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}
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template <typename T>
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PxU8* PxcNpCacheWriteInitiate(PxcNpCacheStreamPair& streams, Gu::Cache& cache, const T& payload, PxU32 bytes)
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{
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PX_UNUSED(payload);
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const PxU32 payloadSize = (sizeof(payload)+3)&~3;
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cache.mCachedSize = Ps::to16((payloadSize + 4 + bytes + 0xF)&~0xF);
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PxU8* ls = streams.reserve(cache.mCachedSize);
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cache.mCachedData = ls;
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if(NULL==ls || reinterpret_cast<PxU8*>(-1)==ls)
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{
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if(NULL==ls)
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{
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PX_WARN_ONCE(
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"Reached limit set by PxSceneDesc::maxNbContactDataBlocks - ran out of buffer space for narrow phase. "
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"Either accept dropped contacts or increase buffer size allocated for narrow phase by increasing PxSceneDesc::maxNbContactDataBlocks.");
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}
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else
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{
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PX_WARN_ONCE(
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"Attempting to allocate more than 16K of contact data for a single contact pair in narrowphase. "
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"Either accept dropped contacts or simplify collision geometry.");
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cache.mCachedData = NULL;
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ls = NULL;
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}
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}
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return ls;
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}
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template <typename T>
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PX_FORCE_INLINE void PxcNpCacheWriteFinalize(PxU8* ls, const T& payload, PxU32 bytes, const PxU8* data)
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{
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const PxU32 payloadSize = (sizeof(payload)+3)&~3;
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*reinterpret_cast<T*>(ls) = payload;
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*reinterpret_cast<PxU32*>(ls+payloadSize) = bytes;
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if(data)
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PxMemCopy(ls+payloadSize+sizeof(PxU32), data, bytes);
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}
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template <typename T>
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PX_FORCE_INLINE PxU8* PxcNpCacheRead(Gu::Cache& cache, T*& payload)
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{
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PxU8* ls = cache.mCachedData;
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payload = reinterpret_cast<T*>(ls);
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const PxU32 payloadSize = (sizeof(T)+3)&~3;
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return reinterpret_cast<PxU8*>(ls+payloadSize+sizeof(PxU32));
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}
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template <typename T>
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const PxU8* PxcNpCacheRead2(Gu::Cache& cache, T& payload, PxU32& bytes)
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{
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const PxU8* ls = cache.mCachedData;
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if(ls==NULL)
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{
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bytes = 0;
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return NULL;
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}
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const PxU32 payloadSize = (sizeof(payload)+3)&~3;
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payload = *reinterpret_cast<const T*>(ls);
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bytes = *reinterpret_cast<const PxU32*>(ls+payloadSize);
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PX_ASSERT(cache.mCachedSize == ((payloadSize + 4 + bytes+0xF)&~0xF));
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return reinterpret_cast<const PxU8*>(ls+payloadSize+sizeof(PxU32));
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}
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}
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#endif // #ifndef PXC_NPCACHE_H
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