Init

2025-11-28 23:13:44 +05:30
commit a3a8e79709
7360 changed files with 1156074 additions and 0 deletions
--- a/physx/source/lowlevel/common/include/pipeline/PxcNpMemBlockPool.h
+++ b/physx/source/lowlevel/common/include/pipeline/PxcNpMemBlockPool.h
@ -0,0 +1,119 @@
+//
+// 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) 2008-2021 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