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source: code/branches/environment/src/external/bullet/BulletCollision/Gimpact/gim_memory.cpp @ 8206

Last change on this file since 8206 was 5781, checked in by rgrieder, 15 years ago

Reverted trunk again. We might want to find a way to delete these revisions again (x3n's changes are still available as diff in the commit mails).

  • Property svn:eol-style set to native
File size: 2.8 KB
Line 
1/*
2-----------------------------------------------------------------------------
3This source file is part of GIMPACT Library.
4
5For the latest info, see http://gimpact.sourceforge.net/
6
7Copyright (c) 2006 Francisco Leon Najera. C.C. 80087371.
8email: projectileman@yahoo.com
9
10 This library is free software; you can redistribute it and/or
11 modify it under the terms of EITHER:
12   (1) The GNU Lesser General Public License as published by the Free
13       Software Foundation; either version 2.1 of the License, or (at
14       your option) any later version. The text of the GNU Lesser
15       General Public License is included with this library in the
16       file GIMPACT-LICENSE-LGPL.TXT.
17   (2) The BSD-style license that is included with this library in
18       the file GIMPACT-LICENSE-BSD.TXT.
19   (3) The zlib/libpng license that is included with this library in
20       the file GIMPACT-LICENSE-ZLIB.TXT.
21
22 This library is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files
25 GIMPACT-LICENSE-LGPL.TXT, GIMPACT-LICENSE-ZLIB.TXT and GIMPACT-LICENSE-BSD.TXT for more details.
26
27-----------------------------------------------------------------------------
28*/
29
30
31#include "gim_memory.h"
32#include "stdlib.h"
33
34#ifdef GIM_SIMD_MEMORY
35#include "LinearMath/btAlignedAllocator.h"
36#endif
37
38static gim_alloc_function *g_allocfn = 0;
39static gim_alloca_function *g_allocafn = 0;
40static gim_realloc_function *g_reallocfn = 0;
41static gim_free_function *g_freefn = 0;
42
43void gim_set_alloc_handler (gim_alloc_function *fn)
44{
45  g_allocfn = fn;
46}
47
48void gim_set_alloca_handler (gim_alloca_function *fn)
49{
50  g_allocafn = fn;
51}
52
53void gim_set_realloc_handler (gim_realloc_function *fn)
54{
55  g_reallocfn = fn;
56}
57
58void gim_set_free_handler (gim_free_function *fn)
59{
60  g_freefn = fn;
61}
62
63gim_alloc_function *gim_get_alloc_handler()
64{
65  return g_allocfn;
66}
67
68gim_alloca_function *gim_get_alloca_handler()
69{
70  return g_allocafn;
71}
72
73
74gim_realloc_function *gim_get_realloc_handler ()
75{
76  return g_reallocfn;
77}
78
79
80gim_free_function  *gim_get_free_handler ()
81{
82  return g_freefn;
83}
84
85
86void * gim_alloc(size_t size)
87{
88        void * ptr;
89        if (g_allocfn)
90        {
91                ptr = g_allocfn(size);
92        }
93        else
94        {
95#ifdef GIM_SIMD_MEMORY
96                ptr = btAlignedAlloc(size,16);
97#else
98                ptr = malloc(size);
99#endif
100        }
101        return ptr;
102}
103
104void * gim_alloca(size_t size)
105{
106  if (g_allocafn) return g_allocafn(size); else return gim_alloc(size);
107}
108
109
110void * gim_realloc(void *ptr, size_t oldsize, size_t newsize)
111{
112        void * newptr = gim_alloc(newsize);
113    size_t copysize = oldsize<newsize?oldsize:newsize;
114    gim_simd_memcpy(newptr,ptr,copysize);
115    gim_free(ptr);
116    return newptr;
117}
118
119void gim_free(void *ptr)
120{
121        if (!ptr) return;
122        if (g_freefn)
123        {
124           g_freefn(ptr);
125        }
126        else
127        {
128        #ifdef GIM_SIMD_MEMORY
129                btAlignedFree(ptr);
130        #else
131                free(ptr);
132        #endif
133        }
134}
135
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