opj_malloc.h

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/*
 * Copyright (c) 2005, Hervé Drolon, FreeImage Team
 * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef __OPJ_MALLOC_H
#define __OPJ_MALLOC_H


/* ----------------------------------------------------------------------- */

#define opj_malloc(size) malloc(size)

#define opj_calloc(num, size) calloc(num, size)

/* FIXME: These should be set with cmake tests, but we're currently not requiring use of cmake */
#ifdef WIN32
        /* Someone should tell the mingw people that their malloc.h ought to provide _mm_malloc() */
        #ifdef __GNUC__
                #include <mm_malloc.h>
                #define HAVE_MM_MALLOC
        #else /* MSVC, Intel C++ */
                #include <malloc.h>
                #ifdef _mm_malloc
                        #define HAVE_MM_MALLOC
                #endif
        #endif
#else /* Not WIN32 */
        #if defined(__sun)
                        #define HAVE_MEMALIGN
                /* Linux x86_64 and OSX always align allocations to 16 bytes */
                #elif !defined(__amd64__) && !defined(__APPLE__)        
                        /* FIXME: Yes, this is a big assumption */
                        #define HAVE_POSIX_MEMALIGN
        #endif
#endif

#define opj_aligned_malloc(size) malloc(size)
#define opj_aligned_free(m) free(m)

#ifdef HAVE_MM_MALLOC
        #undef opj_aligned_malloc
        #define opj_aligned_malloc(size) _mm_malloc(size, 16)
        #undef opj_aligned_free
        #define opj_aligned_free(m) _mm_free(m)
#endif

#ifdef HAVE_MEMALIGN
        extern void* memalign(size_t, size_t);
        #undef opj_aligned_malloc
        #define opj_aligned_malloc(size) memalign(16, (size))
        #undef opj_aligned_free
        #define opj_aligned_free(m) free(m)
#endif

#ifdef HAVE_POSIX_MEMALIGN
        #undef opj_aligned_malloc
        extern int posix_memalign(void**, size_t, size_t);

        static INLINE void* __attribute__ ((malloc)) opj_aligned_malloc(size_t size){
                void* mem = NULL;
                posix_memalign(&mem, 16, size);
                return mem;
        }
        #undef opj_aligned_free
        #define opj_aligned_free(m) free(m)
#endif

#define opj_realloc(m, s) realloc(m, s)

#define opj_free(m) free(m)

#ifdef __GNUC__
#pragma GCC poison malloc calloc realloc free
#endif

/* ----------------------------------------------------------------------- */

#endif /* __OPJ_MALLOC_H */

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