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 4 * party and contributor rights, including patent rights, and no such rights 5 * are granted under this license. 6 * 7 * Copyright (c) 2005, Herve Drolon, FreeImage Team 8 * Copyright (c) 2007, Callum Lerwick <seg (at) haxxed.com> 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 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. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 #ifndef __OPJ_MALLOC_H 33 #define __OPJ_MALLOC_H 34 /** 35 @file opj_malloc.h 36 @brief Internal functions 37 38 The functions in opj_malloc.h are internal utilities used for memory management. 39 */ 40 41 /** @defgroup MISC MISC - Miscellaneous internal functions */ 42 /*@{*/ 43 44 /** @name Exported functions */ 45 /*@{*/ 46 /* ----------------------------------------------------------------------- */ 47 48 /** 49 Allocate an uninitialized memory block 50 @param size Bytes to allocate 51 @return Returns a void pointer to the allocated space, or NULL if there is insufficient memory available 52 */ 53 #define _FOXIT_MEM_MANAGER_ 54 #ifdef _FOXIT_MEM_MANAGER_ 55 void* opj_malloc(size_t size); 56 void* opj_calloc(size_t _NumOfElements, size_t _SizeOfElements); 57 void* opj_realloc(void * m, size_t s); 58 void opj_free(void * m); 59 60 #define opj_aligned_malloc(size) opj_malloc(size) 61 #define opj_aligned_free(m) opj_free(m) 62 #else 63 #ifdef ALLOC_PERF_OPT 64 void * OPJ_CALLCONV opj_malloc(size_t size); 65 #else 66 /* prevent assertion on overflow for MSVC */ 67 #ifdef _MSC_VER 68 #define opj_malloc(size) ((size_t)(size) >= (size_t)-0x100 ? NULL : malloc(size)) 69 #else 70 #define opj_malloc(size) malloc(size) 71 #endif 72 #endif 73 74 /** 75 Allocate a memory block with elements initialized to 0 76 @param num Blocks to allocate 77 @param size Bytes per block to allocate 78 @return Returns a void pointer to the allocated space, or NULL if there is insufficient memory available 79 */ 80 #ifdef ALLOC_PERF_OPT 81 void * OPJ_CALLCONV opj_calloc(size_t _NumOfElements, size_t _SizeOfElements); 82 #else 83 /* prevent assertion on overflow for MSVC */ 84 #ifdef _MSC_VER 85 #define opj_calloc(num, size) ((size_t)(num) != 0 && (size_t)(num) >= (size_t)-0x100 / (size_t)(size) ? NULL : calloc(num, size)) 86 #else 87 #define opj_calloc(num, size) calloc(num, size) 88 #endif 89 #endif 90 91 /** 92 Allocate memory aligned to a 16 byte boundry 93 @param size Bytes to allocate 94 @return Returns a void pointer to the allocated space, or NULL if there is insufficient memory available 95 */ 96 /* FIXME: These should be set with cmake tests, but we're currently not requiring use of cmake */ 97 #ifdef _WIN32 98 /* Someone should tell the mingw people that their malloc.h ought to provide _mm_malloc() */ 99 #ifdef __GNUC__ 100 #include <mm_malloc.h> 101 #define HAVE_MM_MALLOC 102 #else /* MSVC, Intel C++ */ 103 #include <malloc.h> 104 #ifdef _mm_malloc 105 #define HAVE_MM_MALLOC 106 #endif 107 #endif 108 #else /* Not _WIN32 */ 109 #if defined(__sun) 110 #define HAVE_MEMALIGN 111 #elif defined(__FreeBSD__) 112 #define HAVE_POSIX_MEMALIGN 113 /* Linux x86_64 and OSX always align allocations to 16 bytes */ 114 #elif !defined(__amd64__) && !defined(__APPLE__) && !defined(_AIX) 115 #define HAVE_MEMALIGN 116 #include <malloc.h> 117 #endif 118 #endif 119 120 #define opj_aligned_malloc(size) malloc(size) 121 #define opj_aligned_free(m) free(m) 122 123 #ifdef HAVE_MM_MALLOC 124 #undef opj_aligned_malloc 125 #define opj_aligned_malloc(size) _mm_malloc(size, 16) 126 #undef opj_aligned_free 127 #define opj_aligned_free(m) _mm_free(m) 128 #endif 129 130 #ifdef HAVE_MEMALIGN 131 extern void* memalign(size_t, size_t); 132 #undef opj_aligned_malloc 133 #define opj_aligned_malloc(size) memalign(16, (size)) 134 #undef opj_aligned_free 135 #define opj_aligned_free(m) free(m) 136 #endif 137 138 #ifdef HAVE_POSIX_MEMALIGN 139 #undef opj_aligned_malloc 140 extern int posix_memalign(void**, size_t, size_t); 141 142 static INLINE void* __attribute__ ((malloc)) opj_aligned_malloc(size_t size){ 143 void* mem = NULL; 144 posix_memalign(&mem, 16, size); 145 return mem; 146 } 147 #undef opj_aligned_free 148 #define opj_aligned_free(m) free(m) 149 #endif 150 151 #ifdef ALLOC_PERF_OPT 152 #undef opj_aligned_malloc 153 #define opj_aligned_malloc(size) opj_malloc(size) 154 #undef opj_aligned_free 155 #define opj_aligned_free(m) opj_free(m) 156 #endif 157 158 /** 159 Reallocate memory blocks. 160 @param m Pointer to previously allocated memory block 161 @param s New size in bytes 162 @return Returns a void pointer to the reallocated (and possibly moved) memory block 163 */ 164 #ifdef ALLOC_PERF_OPT 165 void * OPJ_CALLCONV opj_realloc(void * m, size_t s); 166 #else 167 /* prevent assertion on overflow for MSVC */ 168 #ifdef _MSC_VER 169 #define opj_realloc(m, s) ((size_t)(s) >= (size_t)-0x100 ? NULL : realloc(m, s)) 170 #else 171 #define opj_realloc(m, s) realloc(m, s) 172 #endif 173 #endif 174 175 /** 176 Deallocates or frees a memory block. 177 @param m Previously allocated memory block to be freed 178 */ 179 #ifdef ALLOC_PERF_OPT 180 void OPJ_CALLCONV opj_free(void * m); 181 #else 182 #define opj_free(m) free(m) 183 #endif 184 185 #ifdef __GNUC__ 186 #pragma GCC poison malloc calloc realloc free 187 #endif 188 #endif 189 /* ----------------------------------------------------------------------- */ 190 /*@}*/ 191 192 /*@}*/ 193 194 #endif /* __OPJ_MALLOC_H */ 195