E:/p4/sw/physx/PxShared/1.0/trunk/src/foundation/include/PsAlignedMalloc.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_PSALIGNEDMALLOC_H 00031 #define PSFOUNDATION_PSALIGNEDMALLOC_H 00032 00033 #include "PsUserAllocated.h" 00034 00041 namespace physx 00042 { 00043 namespace shdfnd 00044 { 00050 // SCS: AlignedMalloc with 3 params not found, seems not used on PC either 00051 // disabled for now to avoid GCC error 00052 00053 template <uint32_t N, typename BaseAllocator = NonTrackingAllocator> 00054 class AlignedAllocator : public BaseAllocator 00055 { 00056 public: 00057 AlignedAllocator(const BaseAllocator& base = BaseAllocator()) : BaseAllocator(base) 00058 { 00059 } 00060 00061 void* allocate(size_t size, const char* file, int line) 00062 { 00063 size_t pad = N - 1 + sizeof(size_t); // store offset for delete. 00064 uint8_t* base = reinterpret_cast<uint8_t*>(BaseAllocator::allocate(size + pad, file, line)); 00065 if(!base) 00066 return NULL; 00067 00068 uint8_t* ptr = reinterpret_cast<uint8_t*>(size_t(base + pad) & ~(size_t(N) - 1)); // aligned pointer, ensuring N is a size_t 00069 // wide mask 00070 reinterpret_cast<size_t*>(ptr)[-1] = size_t(ptr - base); // store offset 00071 00072 return ptr; 00073 } 00074 void deallocate(void* ptr) 00075 { 00076 if(ptr == NULL) 00077 return; 00078 00079 uint8_t* base = reinterpret_cast<uint8_t*>(ptr) - reinterpret_cast<size_t*>(ptr)[-1]; 00080 BaseAllocator::deallocate(base); 00081 } 00082 }; 00083 00084 } // namespace shdfnd 00085 } // namespace physx 00086 00087 #endif // #ifndef PSFOUNDATION_PSALIGNEDMALLOC_H
Generated on Tue Jul 28 14:21:55 2015 for NVIDIA(R) PsFoundation Reference by
1.5.8