Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 142 insertions, 0 deletions

diff --git a/PhysX_3.4/Source/Common/src/CmPtrTable.h b/PhysX_3.4/Source/Common/src/CmPtrTable.h
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+// 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_COMMON_PTR_TABLE
+#define PX_PHYSICS_COMMON_PTR_TABLE
+
+#include "PxPhysXCommonConfig.h"
+#include "CmPhysXCommon.h"
+
+namespace physx
+{
+
+class PxSerializationContext;
+class PxDeserializationContext;
+
+
+namespace Cm
+{
+
+class PtrTableStorageManager
+{
+	// This will typically be backed by a MultiPool implementation with fallback to the user
+	// allocator. For MultiPool, when deallocating we want to know what the previously requested size was
+	// so we can release into the right pool
+
+public:
+
+	// capacity is in bytes
+
+	virtual void**	allocate(PxU32 capacity)												= 0;
+	virtual void	deallocate(void** addr, PxU32 originalCapacity)							= 0;
+
+	// whether memory allocated at one capacity can (and should) be safely reused at a different capacity
+	// allows realloc-style reuse by clients.
+
+	virtual bool	canReuse(PxU32 originalCapacity, PxU32 newCapacity)		= 0;
+protected:
+	virtual ~PtrTableStorageManager() {}
+};
+
+
+
+// specialized class to hold an array of pointers with extrinsic storage management, 
+// serialization-compatible with 3.3.1 PtrTable
+//
+// note that extrinsic storage implies you *must* clear the table before the destructor runs
+//
+// capacity is implicit: 
+// if the memory is not owned (i.e. came from deserialization) then the capacity is exactly mCount
+// else if mCount==0,  capacity is 0
+// else the capacity is the power of 2 >= mCount
+// 
+// one implication of this is that if we want to add or remove a pointer from unowned memory, we always realloc
+
+struct PX_PHYSX_COMMON_API PtrTable
+{
+//= ATTENTION! =====================================================================================
+// Changing the data layout of this class breaks the binary serialization format.  See comments for 
+// PX_BINARY_SERIAL_VERSION.  If a modification is required, please adjust the getBinaryMetaData 
+// function.  If the modification is made on a custom branch, please change PX_BINARY_SERIAL_VERSION
+// accordingly.
+//==================================================================================================
+
+	PtrTable();
+	~PtrTable();
+
+	void	add(void* ptr, PtrTableStorageManager& sm);
+	void	replaceWithLast(PxU32 index, PtrTableStorageManager& sm);
+	void	clear(PtrTableStorageManager& sm);
+
+	PxU32	find(const void* ptr) const;
+
+	PX_FORCE_INLINE PxU32		getCount()	const	{ return mCount; }
+	PX_FORCE_INLINE	void*const*	getPtrs()	const	{ return mCount == 1 ? &mSingle : mList;	}
+	PX_FORCE_INLINE	void**		getPtrs()			{ return mCount == 1 ? &mSingle : mList;	}
+
+
+	// SERIALIZATION
+
+	// 3.3.1 compatibility fixup: this implementation ALWAYS sets 'ownsMemory' if the size is 0 or 1
+	PtrTable(const PxEMPTY)
+	{
+		mOwnsMemory = mCount<2;
+		if(mCount == 0)
+			mList = NULL;
+	}
+
+	void	exportExtraData(PxSerializationContext& stream);
+	void	importExtraData(PxDeserializationContext& context);
+
+	static void getBinaryMetaData(physx::PxOutputStream& stream);
+
+private:
+	void realloc(PxU32 oldCapacity, PxU32 newCapacity, PtrTableStorageManager& sm);
+
+	union
+	{
+		void*	mSingle;
+		void**	mList;
+	};
+
+	PxU16	mCount;
+	bool	mOwnsMemory;
+	bool	mBufferUsed;		// dark magic in serialization requires this, otherwise redundant because it's logically equivalent to mCount == 1.
+
+};
+
+} // namespace Cm
+#if !PX_P64_FAMILY
+PX_COMPILE_TIME_ASSERT(sizeof(Cm::PtrTable)==8);
+#endif
+
+}
+
+#endif