OpenJPEG  2.1.0
opj_malloc.h
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1 /*
2  * The copyright in this software is being made available under the 2-clauses
3  * BSD License, included below. This software may be subject to other third
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5  * are granted under this license.
6  *
7  * Copyright (c) 2005, Herve Drolon, FreeImage Team
8  * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
9  * All rights reserved.
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12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  * notice, this list of conditions and the following disclaimer.
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20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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31  */
32 #ifndef __OPJ_MALLOC_H
33 #define __OPJ_MALLOC_H
34 
43 
46 /* ----------------------------------------------------------------------- */
47 
53 #ifdef ALLOC_PERF_OPT
54 void * OPJ_CALLCONV opj_malloc(size_t size);
55 #else
56 /* prevent assertion on overflow for MSVC */
57 #ifdef _MSC_VER
58 #define opj_malloc(size) ((size_t)(size) >= (size_t)-0x100 ? NULL : malloc(size))
59 #else
60 #define opj_malloc(size) malloc(size)
61 #endif
62 #endif
63 
70 #ifdef ALLOC_PERF_OPT
71 void * OPJ_CALLCONV opj_calloc(size_t _NumOfElements, size_t _SizeOfElements);
72 #else
73 /* prevent assertion on overflow for MSVC */
74 #ifdef _MSC_VER
75 #define opj_calloc(num, size) ((size_t)(num) != 0 && (size_t)(num) >= (size_t)-0x100 / (size_t)(size) ? NULL : calloc(num, size))
76 #else
77 #define opj_calloc(num, size) calloc(num, size)
78 #endif
79 #endif
80 
86 /* FIXME: These should be set with cmake tests, but we're currently not requiring use of cmake */
87 #ifdef _WIN32
88  /* Someone should tell the mingw people that their malloc.h ought to provide _mm_malloc() */
89  #ifdef __GNUC__
90  #include <mm_malloc.h>
91  #define HAVE_MM_MALLOC
92  #else /* MSVC, Intel C++ */
93  #include <malloc.h>
94  #ifdef _mm_malloc
95  #define HAVE_MM_MALLOC
96  #endif
97  #endif
98 #else /* Not _WIN32 */
99  #if defined(__sun)
100  #define HAVE_MEMALIGN
101  #elif defined(__FreeBSD__)
102  #define HAVE_POSIX_MEMALIGN
103  /* Linux x86_64 and OSX always align allocations to 16 bytes */
104  #elif !defined(__amd64__) && !defined(__APPLE__) && !defined(_AIX)
105  #define HAVE_MEMALIGN
106  #include <malloc.h>
107  #endif
108 #endif
109 
110 #define opj_aligned_malloc(size) malloc(size)
111 #define opj_aligned_free(m) free(m)
112 
113 #ifdef HAVE_MM_MALLOC
114  #undef opj_aligned_malloc
115  #define opj_aligned_malloc(size) _mm_malloc(size, 16)
116  #undef opj_aligned_free
117  #define opj_aligned_free(m) _mm_free(m)
118 #endif
119 
120 #ifdef HAVE_MEMALIGN
121  extern void* memalign(size_t, size_t);
122  #undef opj_aligned_malloc
123  #define opj_aligned_malloc(size) memalign(16, (size))
124  #undef opj_aligned_free
125  #define opj_aligned_free(m) free(m)
126 #endif
127 
128 #ifdef HAVE_POSIX_MEMALIGN
129  #undef opj_aligned_malloc
130  extern int posix_memalign(void**, size_t, size_t);
131 
132  static INLINE void* __attribute__ ((malloc)) opj_aligned_malloc(size_t size){
133  void* mem = NULL;
134  posix_memalign(&mem, 16, size);
135  return mem;
136  }
137  #undef opj_aligned_free
138  #define opj_aligned_free(m) free(m)
139 #endif
140 
141 #ifdef ALLOC_PERF_OPT
142  #undef opj_aligned_malloc
143  #define opj_aligned_malloc(size) opj_malloc(size)
144  #undef opj_aligned_free
145  #define opj_aligned_free(m) opj_free(m)
146 #endif
147 
154 #ifdef ALLOC_PERF_OPT
155 void * OPJ_CALLCONV opj_realloc(void * m, size_t s);
156 #else
157 /* prevent assertion on overflow for MSVC */
158 #ifdef _MSC_VER
159 #define opj_realloc(m, s) ((size_t)(s) >= (size_t)-0x100 ? NULL : realloc(m, s))
160 #else
161 #define opj_realloc(m, s) realloc(m, s)
162 #endif
163 #endif
164 
169 #ifdef ALLOC_PERF_OPT
170 void OPJ_CALLCONV opj_free(void * m);
171 #else
172 #define opj_free(m) free(m)
173 #endif
174 
175 #ifdef __GNUC__
176 #pragma GCC poison malloc calloc realloc free
177 #endif
178 
179 /* ----------------------------------------------------------------------- */
183 
184 #endif /* __OPJ_MALLOC_H */
185 
memalign
void * memalign(size_t, size_t)
opj_calloc
#define opj_calloc(num, size)
Allocate a memory block with elements initialized to 0.
Definition: opj_malloc.h:77
opj_realloc
#define opj_realloc(m, s)
Reallocate memory blocks.
Definition: opj_malloc.h:161
INLINE
#define INLINE
Definition: openjpeg.h:65
opj_aligned_malloc
#define opj_aligned_malloc(size)
Definition: opj_malloc.h:123
__attribute__
#define __attribute__(x)
Definition: opj_includes.h:107
OPJ_CALLCONV
#define OPJ_CALLCONV
Definition: openjpeg.h:92
opj_malloc
#define opj_malloc(size)
Allocate an uninitialized memory block.
Definition: opj_malloc.h:60
opj_free
#define opj_free(m)
Deallocates or frees a memory block.
Definition: opj_malloc.h:172
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