Bullet Collision Detection & Physics Library
btAlignedAllocator.h
Go to the documentation of this file.
1 /*
2 Bullet Continuous Collision Detection and Physics Library
3 Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/
4 
5 This software is provided 'as-is', without any express or implied warranty.
6 In no event will the authors be held liable for any damages arising from the use of this software.
7 Permission is granted to anyone to use this software for any purpose,
8 including commercial applications, and to alter it and redistribute it freely,
9 subject to the following restrictions:
10 
11 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
12 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
13 3. This notice may not be removed or altered from any source distribution.
14 */
15 
16 #ifndef BT_ALIGNED_ALLOCATOR
17 #define BT_ALIGNED_ALLOCATOR
18 
22 
23 #include "btScalar.h"
24 
28 #ifdef BT_DEBUG_MEMORY_ALLOCATIONS
29 
30 int btDumpMemoryLeaks();
31 
32 #define btAlignedAlloc(a, b) \
33  btAlignedAllocInternal(a, b, __LINE__, __FILE__)
34 
35 #define btAlignedFree(ptr) \
36  btAlignedFreeInternal(ptr, __LINE__, __FILE__)
37 
38 void* btAlignedAllocInternal(size_t size, int alignment, int line, char* filename);
39 
40 void btAlignedFreeInternal(void* ptr, int line, char* filename);
41 
42 #else
43 void* btAlignedAllocInternal(size_t size, int alignment);
44 void btAlignedFreeInternal(void* ptr);
45 
46 #define btAlignedAlloc(size, alignment) btAlignedAllocInternal(size, alignment)
47 #define btAlignedFree(ptr) btAlignedFreeInternal(ptr)
48 
49 #endif
50 typedef int size_type;
51 
52 typedef void*(btAlignedAllocFunc)(size_t size, int alignment);
53 typedef void(btAlignedFreeFunc)(void* memblock);
54 typedef void*(btAllocFunc)(size_t size);
55 typedef void(btFreeFunc)(void* memblock);
56 
58 void btAlignedAllocSetCustom(btAllocFunc* allocFunc, btFreeFunc* freeFunc);
61 
64 template <typename T, unsigned Alignment>
66 {
68 
69 public:
70  //just going down a list:
72  /*
73  btAlignedAllocator( const self_type & ) {}
74  */
75 
76  template <typename Other>
78  {
79  }
80 
81  typedef const T* const_pointer;
82  typedef const T& const_reference;
83  typedef T* pointer;
84  typedef T& reference;
85  typedef T value_type;
86 
87  pointer address(reference ref) const { return &ref; }
88  const_pointer address(const_reference ref) const { return &ref; }
90  {
91  (void)hint;
92  return reinterpret_cast<pointer>(btAlignedAlloc(sizeof(value_type) * n, Alignment));
93  }
94  void construct(pointer ptr, const value_type& value) { new (ptr) value_type(value); }
95  void deallocate(pointer ptr)
96  {
97  btAlignedFree(reinterpret_cast<void*>(ptr));
98  }
99  void destroy(pointer ptr) { ptr->~value_type(); }
100 
101  template <typename O>
102  struct rebind
103  {
105  };
106  template <typename O>
108  {
109  return *this;
110  }
111 
112  friend bool operator==(const self_type&, const self_type&) { return true; }
113 };
114 
115 #endif //BT_ALIGNED_ALLOCATOR
btAlignedAllocator::self_type
btAlignedAllocator< T, Alignment > self_type
Definition: btAlignedAllocator.h:67
btAlignedFree
#define btAlignedFree(ptr)
Definition: btAlignedAllocator.h:47
btAlignedAllocator::const_reference
const typedef T & const_reference
Definition: btAlignedAllocator.h:82
btAlignedAllocator::value_type
T value_type
Definition: btAlignedAllocator.h:85
btFreeFunc
void() btFreeFunc(void *memblock)
Definition: btAlignedAllocator.h:55
btAlignedAllocator::const_pointer
const typedef T * const_pointer
Definition: btAlignedAllocator.h:81
btAlignedAllocator::pointer
T * pointer
Definition: btAlignedAllocator.h:83
btAlignedAllocSetCustomAligned
void btAlignedAllocSetCustomAligned(btAlignedAllocFunc *allocFunc, btAlignedFreeFunc *freeFunc)
If the developer has already an custom aligned allocator, then btAlignedAllocSetCustomAligned can be ...
Definition: btAlignedAllocator.cpp:94
btAlignedAllocator::address
pointer address(reference ref) const
Definition: btAlignedAllocator.h:87
btAlignedAllocator::construct
void construct(pointer ptr, const value_type &value)
Definition: btAlignedAllocator.h:94
btAlignedAlloc
#define btAlignedAlloc(size, alignment)
Definition: btAlignedAllocator.h:46
btScalar.h
btAlignedAllocator::address
const_pointer address(const_reference ref) const
Definition: btAlignedAllocator.h:88
btAlignedAllocator::rebind
Definition: btAlignedAllocator.h:102
btAlignedAllocator::btAlignedAllocator
btAlignedAllocator()
Definition: btAlignedAllocator.h:71
btAlignedAllocator::btAlignedAllocator
btAlignedAllocator(const btAlignedAllocator< Other, Alignment > &)
Definition: btAlignedAllocator.h:77
btAlignedAllocator
The btAlignedAllocator is a portable class for aligned memory allocations.
Definition: btAlignedAllocator.h:65
btAlignedAllocator::destroy
void destroy(pointer ptr)
Definition: btAlignedAllocator.h:99
btAlignedAllocator::operator==
friend bool operator==(const self_type &, const self_type &)
Definition: btAlignedAllocator.h:112
btAlignedAllocator::rebind::other
btAlignedAllocator< O, Alignment > other
Definition: btAlignedAllocator.h:104
btAllocFunc
void *() btAllocFunc(size_t size)
Definition: btAlignedAllocator.h:54
btAlignedAllocFunc
void *() btAlignedAllocFunc(size_t size, int alignment)
Definition: btAlignedAllocator.h:52
btAlignedAllocator::allocate
pointer allocate(size_type n, const_pointer *hint=0)
Definition: btAlignedAllocator.h:89
btAlignedAllocSetCustom
void btAlignedAllocSetCustom(btAllocFunc *allocFunc, btFreeFunc *freeFunc)
The developer can let all Bullet memory allocations go through a custom memory allocator,...
Definition: btAlignedAllocator.cpp:100
btAlignedAllocInternal
void * btAlignedAllocInternal(size_t size, int alignment)
we probably replace this with our own aligned memory allocator so we replace _aligned_malloc and _ali...
Definition: btAlignedAllocator.cpp:244
btAlignedAllocator::deallocate
void deallocate(pointer ptr)
Definition: btAlignedAllocator.h:95
btAlignedFreeInternal
void btAlignedFreeInternal(void *ptr)
Definition: btAlignedAllocator.cpp:252
btSoftBody::DeformableFaceNodeContact
Definition: btSoftBody.h:375
size_type
int size_type
Definition: btAlignedAllocator.h:50
btAlignedAllocator::reference
T & reference
Definition: btAlignedAllocator.h:84
btAlignedAllocator::operator=
self_type & operator=(const btAlignedAllocator< O, Alignment > &)
Definition: btAlignedAllocator.h:107
btAlignedFreeFunc
void() btAlignedFreeFunc(void *memblock)
Definition: btAlignedAllocator.h:53
size
static DBVT_INLINE btScalar size(const btDbvtVolume &a)
Definition: btDbvt.cpp:52