E:/p4/sw/physx/PxShared/1.0/trunk/src/foundation/include/PsAlloca.h
Go to the documentation of this file.00001 // This code contains NVIDIA Confidential Information and is disclosed to you 00002 // under a form of NVIDIA software license agreement provided separately to you. 00003 // 00004 // Notice 00005 // NVIDIA Corporation and its licensors retain all intellectual property and 00006 // proprietary rights in and to this software and related documentation and 00007 // any modifications thereto. Any use, reproduction, disclosure, or 00008 // distribution of this software and related documentation without an express 00009 // license agreement from NVIDIA Corporation is strictly prohibited. 00010 // 00011 // ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES 00012 // NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO 00013 // THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT, 00014 // MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. 00015 // 00016 // Information and code furnished is believed to be accurate and reliable. 00017 // However, NVIDIA Corporation assumes no responsibility for the consequences of use of such 00018 // information or for any infringement of patents or other rights of third parties that may 00019 // result from its use. No license is granted by implication or otherwise under any patent 00020 // or patent rights of NVIDIA Corporation. Details are subject to change without notice. 00021 // This code supersedes and replaces all information previously supplied. 00022 // NVIDIA Corporation products are not authorized for use as critical 00023 // components in life support devices or systems without express written approval of 00024 // NVIDIA Corporation. 00025 // 00026 // Copyright (c) 2008-2014 NVIDIA Corporation. All rights reserved. 00027 // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved. 00028 // Copyright (c) 2001-2004 NovodeX AG. All rights reserved. 00029 00030 #ifndef PSFOUNDATION_PSALLOCA_H 00031 #define PSFOUNDATION_PSALLOCA_H 00032 00033 #include "PsTempAllocator.h" 00034 00035 namespace physx 00036 { 00037 namespace shdfnd 00038 { 00039 template <typename T, typename Alloc = TempAllocator> 00040 class ScopedPointer : private Alloc 00041 { 00042 public: 00043 ~ScopedPointer() 00044 { 00045 if(mOwned) 00046 Alloc::deallocate(mPointer); 00047 } 00048 00049 operator T*() const 00050 { 00051 return mPointer; 00052 } 00053 00054 T* mPointer; 00055 bool mOwned; 00056 }; 00057 00058 } // namespace shdfnd 00059 } // namespace physx 00060 00062 #ifdef __SPU__ 00063 #define PX_ALLOCA(var, type, count) type* var = reinterpret_cast<type*>(PxAlloca(sizeof(type) * (count))) 00064 #else 00065 #define PX_ALLOCA(var, type, count) \ 00066 physx::shdfnd::ScopedPointer<type> var; \ 00067 { \ 00068 uint32_t size = sizeof(type) * (count); \ 00069 var.mOwned = size > 1024; \ 00070 if(var.mOwned) \ 00071 var.mPointer = reinterpret_cast<type*>(physx::shdfnd::TempAllocator().allocate(size, __FILE__, __LINE__));\ 00072 else \ 00073 var.mPointer = reinterpret_cast<type*>(PxAlloca(size)); \ 00074 } 00075 #endif 00076 #endif // #ifndef PSFOUNDATION_PSALLOCA_H
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