feat(physics): wire physx sdk into build

engine/third_party/physx/source/gpucommon/include/PxgHeapMemAllocator.h

@@ -0,0 +1,178 @@
+// 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) 2008-2025 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	PXG_HEAP_MEM_ALLOCATOR_H
+#define	PXG_HEAP_MEM_ALLOCATOR_H
+
+#include "foundation/PxAssert.h"
+#include "foundation/PxBitUtils.h"
+#include "foundation/PxHashMap.h"
+#include "foundation/PxArray.h"
+#include "foundation/PxPool.h"
+#include "foundation/PxMutex.h"
+#include "PxsHeapMemoryAllocator.h"
+#include "common/PxPhysXCommonConfig.h"
+
+#if PX_DEBUG
+#include "PxgMemoryTracker.h"
+#endif
+
+namespace physx
+{
+	class PxsMemoryManager;
+
+	class BlockHeader
+	{
+	public:
+		PX_FORCE_INLINE BlockHeader(const PxU32 offset, PxU32 rootIndex) : mOffset(offset), mRootIndex(rootIndex), mPrev(NULL), mNext(NULL)
+		{
+		}
+
+		PX_FORCE_INLINE void initialize(const PxU32 rootIndex, const PxU32 offset)
+		{
+			mOffset = offset;
+			mRootIndex = rootIndex;
+			mPrev = NULL;
+			mNext = NULL;
+		}
+
+		PxU32 mOffset;
+		PxU32 mRootIndex;
+		BlockHeader* mPrev;
+		BlockHeader* mNext;
+	};
+
+#define PXG_INVALID_BLOCK 0xFFFFFFFF
+
+	class Block
+	{
+	public:
+		PX_FORCE_INLINE Block() : mStartHeader(NULL), mEndHeader(NULL), mHeaderSizes(0) {}
+		
+		PX_FORCE_INLINE bool isEmpty() { return mHeaderSizes == 0; }
+		void insertBlockHeader(const PxU32 rootIndex, const PxU32 offset, PxPool<BlockHeader>& pool);
+		void removeBlockHeader(BlockHeader* header, PxPool<BlockHeader>& pool);
+		BlockHeader* findBuddy(const PxU32 offsetToFind, const PxU32 rootIndex);
+		BlockHeader* getFreeBlocks(){ return mEndHeader; }
+
+		bool isValid();
+
+		BlockHeader* mStartHeader;
+		BlockHeader* mEndHeader;
+		PxU32 mHeaderSizes;
+		PxU32 mBlockSize;
+		PxU32 mBlockIndex;
+	};
+
+	class AllocationValue
+	{
+	public:
+		PX_FORCE_INLINE AllocationValue(const PxU32 blockIndex, const PxU32 rootIndex, const size_t byteSize, const int group)
+			: mBlockIndex(blockIndex), mRootIndex(rootIndex), mByteSize(byteSize), mGroup(group)
+		{}
+		PxU32 mBlockIndex;
+		PxU32 mRootIndex;
+		size_t mByteSize;
+		int mGroup;
+	};
+
+	struct ExceptionalAlloc
+	{
+		void* address;
+		size_t size;
+	};
+
+	class PxgHeapMemoryAllocator : public PxsHeapMemoryAllocator
+	{
+	public:
+
+		PxgHeapMemoryAllocator(const PxU32 byteSize, PxVirtualAllocatorCallback* allocator);
+		~PxgHeapMemoryAllocator();
+	
+		void initializeBlocks(const PxU32 rootIndex);
+		//return a free block index
+		PxU32 getNextFreeBlock(const PxU32 blockIndex, const PxU32 allocationSize, const char* file, const int line);
+	
+		// PxVirtualAllocatorCallback
+		virtual	void* allocate(const size_t byteSize, const int group, const char* file, const int line)	PX_OVERRIDE;
+		virtual	void deallocate(void* ptr)																	PX_OVERRIDE;
+		//~PxVirtualAllocatorCallback
+
+		void deallocateDeferred(void* ptr);
+
+		void flushDeferredDeallocs();
+
+		PxU64 getTotalSize();
+		PxsHeapStats& getHeapStats() { return mHeapStats; }
+
+#if PX_DEBUG || PX_STOMP_ALLOCATED_MEMORY
+		PxVirtualAllocatorCallback* getAllocator() { return mAllocator; } //Used for memcheck support
+#endif
+
+	private:
+
+		PxHashMap<void*, AllocationValue> mHashMap;//this is used to look up where the block is
+		PxArray<Block> mBlocks; //this is used to store fix size slots 
+		PxVirtualAllocatorCallback* mAllocator;
+		PxArray<void*> mRoots;
+		PxArray<ExceptionalAlloc> mExceptionalAllocs;
+		PxArray<void*> deferredDeallocs;
+		PxU32 mAllocationSize;
+		PxU32 mBitfield;
+		PxU64 mTotalMem;
+		PxsHeapStats mHeapStats;
+
+		PxPool<BlockHeader> mBlockHeaderPool;
+
+		PxMutex mMutex;
+
+#if PX_DEBUG
+		MemTracker mMemTracker;
+#endif
+
+		PX_NOCOPY(PxgHeapMemoryAllocator)
+	};
+
+	class PxgHeapMemoryAllocatorManager : public PxsHeapMemoryAllocatorManager
+	{ 
+	public:
+		PxgHeapMemoryAllocatorManager(PxU32 heapCapacity, PxsMemoryManager* memoryManager);
+
+		virtual ~PxgHeapMemoryAllocatorManager();
+
+		// PxsHeapMemoryAllocatorManager
+		virtual PxU64			getDeviceMemorySize()	const	PX_OVERRIDE PX_FINAL;
+		virtual PxsHeapStats	getDeviceHeapStats()	const	PX_OVERRIDE PX_FINAL;
+		virtual void			flushDeferredDeallocs()			PX_OVERRIDE PX_FINAL;
+		//~PxsHeapMemoryAllocatorManager
+
+		PxgHeapMemoryAllocator*	mDeviceMemoryAllocators;
+	};
+}
+
+#endif