Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 102 insertions, 0 deletions

diff --git a/PhysX_3.4/Source/Common/src/CmRefCountable.h b/PhysX_3.4/Source/Common/src/CmRefCountable.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_REFCOUNTABLE
+#define PX_PHYSICS_COMMON_REFCOUNTABLE
+
+#include "foundation/PxAssert.h"
+#include "PsAtomic.h"
+
+namespace physx
+{
+namespace Cm
+{
+
+	// simple thread-safe reference count
+	// when the ref count is zero, the object is in an undefined state (pending delete)
+
+	class RefCountable
+	{
+	//= 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.
+	//==================================================================================================
+	public:
+// PX_SERIALIZATION
+		RefCountable(const PxEMPTY) : mRefCount(1)	{}
+		static	void	getBinaryMetaData(PxOutputStream& stream);
+//~PX_SERIALIZATION
+		explicit RefCountable(PxU32 initialCount = 1)
+			: mRefCount(PxI32(initialCount))
+		{
+			PX_ASSERT(mRefCount!=0);
+		}
+
+		virtual ~RefCountable() {}
+
+		/**
+		Calls 'delete this;'. It needs to be overloaded for classes also deriving from 
+		PxBase and call 'Cm::deletePxBase(this);' instead.
+		*/
+		virtual	void onRefCountZero()
+		{
+			delete this;
+		}
+
+		void incRefCount()
+		{
+			physx::shdfnd::atomicIncrement(&mRefCount);
+			// value better be greater than 1, or we've created a ref to an undefined object
+			PX_ASSERT(mRefCount>1);
+		}
+
+		void decRefCount()
+		{
+			PX_ASSERT(mRefCount>0);
+			if(physx::shdfnd::atomicDecrement(&mRefCount) == 0)
+				onRefCountZero();
+		}
+
+		PX_FORCE_INLINE PxU32 getRefCount() const
+		{
+			return PxU32(mRefCount);
+		}
+	private:
+		volatile PxI32 mRefCount;
+	};
+
+
+} // namespace Cm
+
+}
+
+#endif