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) 2008-2012 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 
00031 #ifndef PX_DEFAULT_ALLOCATOR_H
00032 #define PX_DEFAULT_ALLOCATOR_H
00033 
00037 #include "foundation/PxAllocatorCallback.h"
00038 #include "common/PxPhysXCommon.h"
00039 #include "foundation/PxAssert.h"
00040 #include <stdlib.h>
00041 
00042 #ifndef PX_DOXYGEN
00043 namespace physx
00044 {
00045 #endif
00046 
00051 #ifdef WIN32
00052 
00053 // on win32 we only have 8-byte alignment guaranteed, but the CRT provides special aligned allocation
00054 // fns
00055 #include <malloc.h>
00056 class PxDefaultAllocator : public PxAllocatorCallback
00057 {
00058 public:
00059     void* allocate(size_t size, const char*, const char*, int)
00060     {
00061         return _aligned_malloc(size, 16);   
00062     }
00063 
00064     void deallocate(void* ptr)
00065     {
00066         _aligned_free(ptr);
00067     }
00068 };
00069 
00070 #elif defined (ANDROID)
00071 
00072 #include <malloc.h>
00073     class PxDefaultAllocator : public PxAllocatorCallback
00074     {
00075     public:
00076         void* allocate(size_t size, const char*, const char*, int)
00077         {
00078             void *ptr = memalign(16, size);
00079             PX_ASSERT((reinterpret_cast<size_t>(ptr) & 15)==0);
00080             return ptr;
00081         }
00082 
00083         void deallocate(void* ptr)
00084         {
00085             free(ptr);
00086         }
00087     };
00088 
00089 #else
00090 
00091 // on PS3, XBox and Win64 we get 16-byte alignment by default
00092 
00093 class PxDefaultAllocator : public PxAllocatorCallback
00094 {
00095 public:
00096     void* allocate(size_t size, const char*, const char*, int)
00097     {
00098         void *ptr = ::malloc(size); 
00099         PX_ASSERT((reinterpret_cast<size_t>(ptr) & 15)==0);
00100         return ptr;
00101     }
00102 
00103     void deallocate(void* ptr)
00104     {
00105         ::free(ptr);            
00106     }
00107 };
00108 
00109 #endif
00110 
00111 #ifndef PX_DOXYGEN
00112 } // namespace physx
00113 #endif
00114 
00116 #endif