1 files changed, 105 insertions, 0 deletions
diff --git a/PhysX_3.4/Source/PhysX/src/NpPtrTableStorageManager.h b/PhysX_3.4/Source/PhysX/src/NpPtrTableStorageManager.h
new file mode 100644
index 00000000..17c74129
--- /dev/null
+++ b/PhysX_3.4/Source/PhysX/src/NpPtrTableStorageManager.h
@@ -0,0 +1,105 @@
+// This code contains NVIDIA Confidential Information and is disclosed to you
+// under a form of NVIDIA software license agreement provided separately to you.
+//
+// Notice
+// NVIDIA Corporation and its licensors retain all intellectual property and
+// proprietary rights in and to this software and related documentation and
+// any modifications thereto. Any use, reproduction, disclosure, or
+// distribution of this software and related documentation without an express
+// license agreement from NVIDIA Corporation is strictly prohibited.
+//
+// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
+// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
+// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
+// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
+//
+// Information and code furnished is believed to be accurate and reliable.
+// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
+// information or for any infringement of patents or other rights of third parties that may
+// result from its use. No license is granted by implication or otherwise under any patent
+// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
+// This code supersedes and replaces all information previously supplied.
+// NVIDIA Corporation products are not authorized for use as critical
+// components in life support devices or systems without express written approval of
+// NVIDIA Corporation.
+//
+// Copyright (c) 2008-2016 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 PX_PHYSICS_NP_PTRTABLESTORAGEMANAGER_H
+#define PX_PHYSICS_NP_PTRTABLESTORAGEMANAGER_H
+
+#include "CmPhysXCommon.h"
+#include "PsMutex.h"
+#include "PsUserAllocated.h"
+#include "CmPtrTable.h"
+#include "PsBitUtils.h"
+
+namespace physx
+{
+class NpPtrTableStorageManager : public Cm::PtrTableStorageManager, public Ps::UserAllocated
+{
+	PX_NOCOPY(NpPtrTableStorageManager)
+
+public:
+
+	NpPtrTableStorageManager() {}
+	~NpPtrTableStorageManager() {}
+
+	void**	allocate(PxU32 capacity)
+	{
+		PX_ASSERT(Ps::isPowerOfTwo(capacity));
+
+		Ps::Mutex::ScopedLock lock(mMutex);
+
+		return capacity<=4*sizeof(void*)  ? reinterpret_cast<void**>(mPool4.construct())
+			 : capacity<=16*sizeof(void*) ? reinterpret_cast<void**>(mPool16.construct())
+			 : capacity<=64*sizeof(void*) ? reinterpret_cast<void**>(mPool64.construct())
+			 : reinterpret_cast<void**>(PX_ALLOC(capacity*sizeof(void*), "CmPtrTable pointer array"));							
+	}
+
+	void deallocate(void** addr, PxU32 capacity)
+	{
+		PX_ASSERT(Ps::isPowerOfTwo(capacity));
+
+		Ps::Mutex::ScopedLock lock(mMutex);
+
+		if(capacity<=4*sizeof(void*))			mPool4.destroy(reinterpret_cast< PtrBlock<4>*>(addr));
+		else if(capacity<=16*sizeof(void*))		mPool16.destroy(reinterpret_cast< PtrBlock<16>*>(addr));
+		else if(capacity<=64*sizeof(void*))		mPool64.destroy(reinterpret_cast< PtrBlock<64>*>(addr));
+		else									PX_FREE(addr);
+	}
+
+	// originalCapacity is the only way we know which pool the alloc request belongs to,
+	// so if those are no longer going to match, we need to realloc.
+
+	bool canReuse(PxU32 originalCapacity, PxU32 newCapacity)
+	{
+		PX_ASSERT(Ps::isPowerOfTwo(originalCapacity));
+		PX_ASSERT(Ps::isPowerOfTwo(newCapacity));
+
+		return poolId(originalCapacity) == poolId(newCapacity) && newCapacity<=64;
+	}
+
+private:
+	Ps::Mutex mMutex;
+
+	int poolId(PxU32 size)
+	{
+		return size<=4	? 0
+			 : size<=16 ? 1
+			 : size<=64 ? 2
+			 : 3;
+	}
+
+	template<int N> class PtrBlock { void* ptr[N]; };
+
+	Ps::Pool2<PtrBlock<4>, 4096 >		mPool4; 
+	Ps::Pool2<PtrBlock<16>, 4096 >		mPool16;
+	Ps::Pool2<PtrBlock<64>, 4096 >		mPool64;
+};
+
+}
+#endif