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
4 * party and contributor rights, including patent rights, and no such rights
5 * are granted under this license.
7 * Copyright (c) 2015, Mathieu Malaterre <mathieu.malaterre@gmail.com>
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
31 #define OPJ_SKIP_POISON
32 #include "opj_malloc.h"
33 #include "opj_config_private.h"
38 static inline void *opj_aligned_alloc_n(size_t alignment, size_t size)
40 #if defined(HAVE_POSIX_MEMALIGN)
41 // aligned_alloc requires c11, restrict to posix_memalign for now. Quote:
42 // This function was introduced in POSIX 1003.1d. Although this function is
43 // superseded by aligned_alloc, it is more portable to older POSIX systems
44 // that do not support ISO C11.
46 if (posix_memalign (&ptr, alignment, size))
52 #elif defined(HAVE_MEMALIGN)
53 assert( size % alignment == 0 );
54 return memalign( alignment, size );
56 #elif defined(HAVE__ALIGNED_MALLOC)
57 return _aligned_malloc( alignment, size );
59 /* TODO: _mm_malloc(x,y) */
60 #error missing aligned alloc function
63 static inline void *opj_aligned_realloc_n(void *ptr, size_t alignment, size_t size)
65 /* no portable aligned realloc */
66 #if defined(HAVE_POSIX_MEMALIGN) || defined(HAVE_MEMALIGN)
67 /* glibc doc states one can mixed aligned malloc with realloc */
68 void *r_ptr = realloc( ptr, size );
70 if( (uintptr_t)r_ptr & alignment == 0 )
72 /* this is non-trivial to implement a portable aligned realloc, so use a
73 * simple approach where we do not need a function that return the size of an
74 * allocated array (eg. _msize on Windows, malloc_size on MacOS,
75 * malloc_usable_size on systems with glibc) */
76 void *a_ptr = opj_aligned_alloc_n(alignment, size);
77 /* memory may overlap, do not use memcpy */
78 memmove(a_ptr, r_ptr, size);
82 #elif defined(HAVE__ALIGNED_MALLOC)
83 return _aligned_realloc( ptr, size, alignment );
85 /* TODO: _mm_malloc(x,y) */
86 #error missing aligned realloc function
89 void * opj_malloc(size_t size)
93 void * opj_calloc(size_t numOfElements, size_t sizeOfElements)
95 return calloc(numOfElements, sizeOfElements);
98 void *opj_aligned_malloc(size_t size)
100 return opj_aligned_alloc_n(16u,size);
102 void * opj_aligned_realloc(void *ptr, size_t size)
104 return opj_aligned_realloc_n(ptr,16u,size);
107 void opj_aligned_free(void* ptr)
109 #ifdef HAVE__ALIGNED_MALLOC
110 _aligned_free( ptr );
116 void * opj_realloc(void * m, size_t s)
120 void opj_free(void * m)