dont store version for bit-exact tests
[libav.git] / libavcodec / mem.c
CommitLineData
d01fe86d
FB
1/*
2 * default memory allocator for libavcodec
3 * Copyright (c) 2002 Fabrice Bellard.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19#include "avcodec.h"
20#ifdef HAVE_MALLOC_H
21#include <malloc.h>
22#endif
23
24/* you can redefine av_malloc and av_free in your project to use your
25 memory allocator. You do not need to suppress this file because the
26 linker will do it automatically */
27
28/* memory alloc */
29void *av_malloc(int size)
30{
31 void *ptr;
32#if defined ( ARCH_X86 ) && defined ( HAVE_MEMALIGN ) && 0
33 ptr = memalign(64,size);
34 /* Why 64?
35 Indeed, we should align it:
36 on 4 for 386
37 on 16 for 486
38 on 32 for 586, PPro - k6-III
39 on 64 for K7 (maybe for P3 too).
40 Because L1 and L2 caches are aligned on those values.
41 But I don't want to code such logic here!
42 */
43#else
44 ptr = malloc(size);
45#endif
46 if (!ptr)
47 return NULL;
48 /* NOTE: this memset should not be present */
49 memset(ptr, 0, size);
50 return ptr;
51}
52
53/* NOTE: ptr = NULL is explicetly allowed */
54void av_free(void *ptr)
55{
56 /* XXX: this test should not be needed on most libcs */
57 if (ptr)
58 free(ptr);
59}
60