1/*  libasf - An Advanced Systems Format media file parser
2 *  Copyright (C) 2006-2010 Juho Vähä-Herttua
3 *
4 *  This library is free software; you can redistribute it and/or
5 *  modify it under the terms of the GNU Lesser General Public
6 *  License as published by the Free Software Foundation; either
7 *  version 2.1 of the License, or (at your option) any later version.
8 *
9 *  This library is distributed in the hope that it will be useful,
10 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
11 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 *  Lesser General Public License for more details.
13 *
14 *  You should have received a copy of the GNU Lesser General Public
15 *  License along with this library; if not, write to the Free Software
16 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#ifndef COMPAT_H
20#define COMPAT_H
21
22#ifdef __GNUC__
23# define INLINE __inline__
24#else
25# define INLINE
26#endif
27
28static INLINE uint16_t
29GetWLE(const void *pointer)
30{
31	const uint8_t *data = pointer;
32	return ((uint16_t)data[1] << 8) |
33	       ((uint16_t)data[0]);
34}
35
36static INLINE uint32_t
37GetDWLE(const void *pointer)
38{
39	const uint8_t *data = pointer;
40	return ((uint32_t)data[3] << 24) |
41	       ((uint32_t)data[2] << 16) |
42	       ((uint32_t)data[1] <<  8) |
43	       ((uint32_t)data[0]);
44}
45
46static INLINE uint64_t
47GetQWLE(const void *pointer)
48{
49	const uint8_t *data = pointer;
50	return ((uint64_t)data[7] << 56) |
51	       ((uint64_t)data[6] << 48) |
52	       ((uint64_t)data[5] << 40) |
53	       ((uint64_t)data[4] << 32) |
54	       ((uint64_t)data[3] << 24) |
55	       ((uint64_t)data[2] << 16) |
56	       ((uint64_t)data[1] <<  8) |
57	       ((uint64_t)data[0]);
58}
59
60#endif
61