NVIDIA(R) PhysX(R) SDK 3.4 API Reference: PxDefaultAllocator.h Source File

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+00022 // NVIDIA Corporation products are not authorized for use as critical
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+00024 // NVIDIA Corporation.
+00025 //
+00026 // Copyright (c) 2008-2016 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 "foundation/PxAssert.h"
+00039 #include "common/PxPhysXCommonConfig.h"
+00040 
+00041 #include <stdlib.h>
+00042 
+00043 #if PX_WINDOWS || PX_LINUX_FAMILY
+00044 #include <malloc.h>
+00045 #endif
+00046 
+00047 #if !PX_DOXYGEN
+00048 namespace physx
+00049 {
+00050 #endif
+00051 
+00052 #if PX_WINDOWS
+00053 // on win32 we only have 8-byte alignment guaranteed, but the CRT provides special aligned allocation fns
+00054 PX_FORCE_INLINE void* platformAlignedAlloc(size_t size)
+00055 {
+00056     return _aligned_malloc(size, 16);
+00057 }
+00058 
+00059 PX_FORCE_INLINE void platformAlignedFree(void* ptr)
+00060 {
+00061     _aligned_free(ptr);
+00062 }
+00063 #elif PX_LINUX_FAMILY
+00064 PX_FORCE_INLINE void* platformAlignedAlloc(size_t size)
+00065 {
+00066     return ::memalign(16, size);
+00067 }
+00068 
+00069 PX_FORCE_INLINE void platformAlignedFree(void* ptr)
+00070 {
+00071     ::free(ptr);
+00072 }
+00073 #else
+00074 // on all other platforms we get 16-byte alignment by default
+00075 PX_FORCE_INLINE void* platformAlignedAlloc(size_t size)
+00076 {
+00077     return ::malloc(size);  
+00078 }
+00079 
+00080 PX_FORCE_INLINE void platformAlignedFree(void* ptr)
+00081 {
+00082     ::free(ptr);
+00083 }
+00084 #endif
+00085 
+00089 class PxDefaultAllocator : public PxAllocatorCallback
+00090 {
+00091 public:
+00092     void* allocate(size_t size, const char*, const char*, int)
+00093     {
+00094         void* ptr = platformAlignedAlloc(size);
+00095         PX_ASSERT((reinterpret_cast<size_t>(ptr) & 15)==0);
+00096         return ptr;
+00097     }
+00098 
+00099     void deallocate(void* ptr)
+00100     {
+00101         platformAlignedFree(ptr);
+00102     }
+00103 };
+00104 
+00105 #if !PX_DOXYGEN
+00106 } // namespace physx
+00107 #endif
+00108 
+00110 #endif
+