From 134008a53427140cd2c23e2c5507c3c12af17a01 Mon Sep 17 00:00:00 2001 From: arpi Date: Sun, 6 Apr 2003 16:41:49 +0000 Subject: Importing libmpeg2 from mpeg2dec-0.3.1 git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9858 b3059339-0415-0410-9bf9-f77b7e298cf2 --- libmpeg2/alloc.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 libmpeg2/alloc.c (limited to 'libmpeg2/alloc.c') diff --git a/libmpeg2/alloc.c b/libmpeg2/alloc.c new file mode 100644 index 0000000000..0a434d9782 --- /dev/null +++ b/libmpeg2/alloc.c @@ -0,0 +1,76 @@ +/* + * alloc.c + * Copyright (C) 2000-2002 Michel Lespinasse + * Copyright (C) 1999-2000 Aaron Holtzman + * + * This file is part of mpeg2dec, a free MPEG-2 video stream decoder. + * See http://libmpeg2.sourceforge.net/ for updates. + * + * mpeg2dec is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * mpeg2dec is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "config.h" + +#include +#include + +#include "mpeg2.h" +#include "mpeg2_internal.h" + +#if defined(HAVE_MEMALIGN) && !defined(__cplusplus) +/* some systems have memalign() but no declaration for it */ +void * memalign (size_t align, size_t size); +#endif + +void * (* mpeg2_malloc_hook) (int size, int reason) = NULL; +int (* mpeg2_free_hook) (void * buf) = NULL; + +void * mpeg2_malloc (int size, int reason) +{ + char * buf; + + if (mpeg2_malloc_hook) { + buf = (char *) mpeg2_malloc_hook (size, reason); + if (buf) + return buf; + } + +#if defined(HAVE_MEMALIGN) && !defined(__cplusplus) && !defined(DEBUG) + return memalign (16, size); +#else + buf = (char *) malloc (size + 15 + sizeof (void **)); + if (buf) { + char * align_buf; + + align_buf = buf + 15 + sizeof (void **); + align_buf -= (long)align_buf & 15; + *(((void **)align_buf) - 1) = buf; + return align_buf; + } + return NULL; +#endif +} + +void mpeg2_free (void * buf) +{ + if (mpeg2_free_hook && mpeg2_free_hook (buf)) + return; + +#if defined(HAVE_MEMALIGN) && !defined(__cplusplus) && !defined(DEBUG) + free (buf); +#else + free (*(((void **)buf) - 1)); +#endif +} -- cgit v1.2.3