157 lines
4.9 KiB
C++
157 lines
4.9 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_CONSTRAINTBLOCKPOOL_H
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#define PXC_CONSTRAINTBLOCKPOOL_H
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#include "PxvConfig.h"
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#include "PsArray.h"
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#include "PsMutex.h"
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#include "PxcNpMemBlockPool.h"
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namespace physx
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{
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class PxsConstraintBlockManager
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{
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public:
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PxsConstraintBlockManager(PxcNpMemBlockPool & blockPool):
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mBlockPool(blockPool)
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{
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}
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PX_FORCE_INLINE void reset()
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{
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mBlockPool.releaseConstraintBlocks(mTrackingArray);
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}
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PxcNpMemBlockArray mTrackingArray;
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PxcNpMemBlockPool& mBlockPool;
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private:
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PxsConstraintBlockManager& operator=(const PxsConstraintBlockManager&);
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};
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class PxcConstraintBlockStream
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{
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PX_NOCOPY(PxcConstraintBlockStream)
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public:
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PxcConstraintBlockStream(PxcNpMemBlockPool & blockPool) :
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mBlockPool (blockPool),
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mBlock (NULL),
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mUsed (0)
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{
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}
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PX_FORCE_INLINE PxU8* reserve(PxU32 size, PxsConstraintBlockManager& manager)
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{
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size = (size+15)&~15;
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if(size>PxcNpMemBlock::SIZE)
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return mBlockPool.acquireExceptionalConstraintMemory(size);
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if(mBlock == NULL || size+mUsed>PxcNpMemBlock::SIZE)
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{
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mBlock = mBlockPool.acquireConstraintBlock(manager.mTrackingArray);
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PX_ASSERT(0==mBlock || mBlock->data == reinterpret_cast<PxU8*>(mBlock));
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mUsed = size;
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return reinterpret_cast<PxU8*>(mBlock);
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}
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PX_ASSERT(mBlock && mBlock->data == reinterpret_cast<PxU8*>(mBlock));
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PxU8* PX_RESTRICT result = mBlock->data+mUsed;
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mUsed += size;
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return result;
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}
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PX_FORCE_INLINE void reset()
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{
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mBlock = NULL;
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mUsed = 0;
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}
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PX_FORCE_INLINE PxcNpMemBlockPool& getMemBlockPool() { return mBlockPool; }
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private:
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PxcNpMemBlockPool& mBlockPool;
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PxcNpMemBlock* mBlock; // current constraint block
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PxU32 mUsed; // number of bytes used in constraint block
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//Tracking peak allocations
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PxU32 mPeakUsed;
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};
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class PxcContactBlockStream
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{
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PX_NOCOPY(PxcContactBlockStream)
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public:
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PxcContactBlockStream(PxcNpMemBlockPool & blockPool):
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mBlockPool(blockPool),
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mBlock(NULL),
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mUsed(0)
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{
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}
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PX_FORCE_INLINE PxU8* reserve(PxU32 size)
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{
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size = (size+15)&~15;
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if(size>PxcNpMemBlock::SIZE)
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return mBlockPool.acquireExceptionalConstraintMemory(size);
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PX_ASSERT(size <= PxcNpMemBlock::SIZE);
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if(mBlock == NULL || size+mUsed>PxcNpMemBlock::SIZE)
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{
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mBlock = mBlockPool.acquireContactBlock();
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PX_ASSERT(0==mBlock || mBlock->data == reinterpret_cast<PxU8*>(mBlock));
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mUsed = size;
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return reinterpret_cast<PxU8*>(mBlock);
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}
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PX_ASSERT(mBlock && mBlock->data == reinterpret_cast<PxU8*>(mBlock));
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PxU8* PX_RESTRICT result = mBlock->data+mUsed;
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mUsed += size;
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return result;
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}
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PX_FORCE_INLINE void reset()
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{
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mBlock = NULL;
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mUsed = 0;
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}
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PX_FORCE_INLINE PxcNpMemBlockPool& getMemBlockPool() { return mBlockPool; }
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private:
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PxcNpMemBlockPool& mBlockPool;
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PxcNpMemBlock* mBlock; // current constraint block
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PxU32 mUsed; // number of bytes used in constraint block
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};
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}
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#endif
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