Space-Project/dependencies/physx-4.1/source/lowlevel/common/include/pipeline/PxcNpMemBlockPool.h

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2021-01-16 17:11:39 +01:00
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2019 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 PXC_NP_MEM_BLOCK_POOL_H
#define PXC_NP_MEM_BLOCK_POOL_H
#include "PxvConfig.h"
#include "PsArray.h"
#include "PxcScratchAllocator.h"
namespace physx
{
struct PxcNpMemBlock
{
enum
{
SIZE = 16384
};
PxU8 data[SIZE];
};
typedef Ps::Array<PxcNpMemBlock*> PxcNpMemBlockArray;
class PxcNpMemBlockPool
{
PX_NOCOPY(PxcNpMemBlockPool)
public:
PxcNpMemBlockPool(PxcScratchAllocator& allocator);
~PxcNpMemBlockPool();
void init(PxU32 initial16KDataBlocks, PxU32 maxBlocks);
void flush();
void setBlockCount(PxU32 count);
PxU32 getUsedBlockCount() const;
PxU32 getMaxUsedBlockCount() const;
PxU32 getPeakConstraintBlockCount() const;
void releaseUnusedBlocks();
PxcNpMemBlock* acquireConstraintBlock();
PxcNpMemBlock* acquireConstraintBlock(PxcNpMemBlockArray& memBlocks);
PxcNpMemBlock* acquireContactBlock();
PxcNpMemBlock* acquireFrictionBlock();
PxcNpMemBlock* acquireNpCacheBlock();
PxU8* acquireExceptionalConstraintMemory(PxU32 size);
void acquireConstraintMemory();
void releaseConstraintMemory();
void releaseConstraintBlocks(PxcNpMemBlockArray& memBlocks);
void releaseContacts();
void swapFrictionStreams();
void swapNpCacheStreams();
void flushUnused();
private:
Ps::Mutex mLock;
PxcNpMemBlockArray mConstraints;
PxcNpMemBlockArray mContacts[2];
PxcNpMemBlockArray mFriction[2];
PxcNpMemBlockArray mNpCache[2];
PxcNpMemBlockArray mScratchBlocks;
Ps::Array<PxU8*> mExceptionalConstraints;
PxcNpMemBlockArray mUnused;
PxU32 mNpCacheActiveStream;
PxU32 mFrictionActiveStream;
PxU32 mCCDCacheActiveStream;
PxU32 mContactIndex;
PxU32 mAllocatedBlocks;
PxU32 mMaxBlocks;
PxU32 mInitialBlocks;
PxU32 mUsedBlocks;
PxU32 mMaxUsedBlocks;
PxcNpMemBlock* mScratchBlockAddr;
PxU32 mNbScratchBlocks;
PxcScratchAllocator& mScratchAllocator;
PxU32 mPeakConstraintAllocations;
PxU32 mConstraintAllocations;
PxcNpMemBlock* acquire(PxcNpMemBlockArray& trackingArray, PxU32* allocationCount = NULL, PxU32* peakAllocationCount = NULL, bool isScratchAllocation = false);
void release(PxcNpMemBlockArray& deadArray, PxU32* allocationCount = NULL);
};
}
#endif