summaryrefslogtreecommitdiffstats
path: root/src/polypcore/endianmacros.h
blob: 3ab1826a542ad44e60bb7a1e8f2eaaaa244bbe3d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
#ifndef fooendianmacroshfoo
#define fooendianmacroshfoo

/* $Id$ */

/***
  This file is part of polypaudio.
 
  polypaudio is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published
  by the Free Software Foundation; either version 2 of the License,
  or (at your option) any later version.
 
  polypaudio 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 Lesser General Public License
  along with polypaudio; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  USA.
***/

#include <inttypes.h>

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#define INT16_SWAP(x) ( (int16_t) ( ((uint16_t) x >> 8) | ((uint16_t) x << 8) ) )
#define UINT16_SWAP(x) ( (uint16_t) ( ((uint16_t) x >> 8) | ((uint16_t) x << 8) ) )
#define INT32_SWAP(x) ( (int32_t) ( ((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 8) | ((((uint32_t) x) >> 8) & 0xFF00) ) )
#define UINT32_SWAP(x) ( (uint32_t) ( ((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 8) | ((((uint32_t) x) >> 8) & 0xFF00) ) )

#define MAYBE_INT32_SWAP(c,x) ((c) ? INT32_SWAP(x) : x)
#define MAYBE_UINT32_SWAP(c,x) ((c) ? UINT32_SWAP(x) : x)

#ifdef WORDS_BIGENDIAN
 #define INT16_FROM_LE(x) INT16_SWAP(x)
 #define INT16_FROM_BE(x) ((int16_t)(x))

 #define INT16_TO_LE(x) INT16_SWAP(x)
 #define INT16_TO_BE(x) ((int16_t)(x))

 #define UINT16_FROM_LE(x) UINT16_SWAP(x)
 #define UINT16_FROM_BE(x) ((uint16_t)(x))

 #define INT32_FROM_LE(x) INT32_SWAP(x)
 #define INT32_FROM_BE(x) ((int32_t)(x))

 #define UINT32_FROM_LE(x) UINT32_SWAP(x)
 #define UINT32_FROM_BE(x) ((uint32_t)(x))

 #define UINT32_TO_LE(x) UINT32_SWAP(x)
 #define UINT32_TO_BE(x) ((uint32_t)(x))
#else
 #define INT16_FROM_LE(x) ((int16_t)(x))
 #define INT16_FROM_BE(x) INT16_SWAP(x)

 #define INT16_TO_LE(x) ((int16_t)(x))
 #define INT16_TO_BE(x) INT16_SWAP(x)

 #define UINT16_FROM_LE(x) ((uint16_t)(x))
 #define UINT16_FROM_BE(x) UINT16_SWAP(x)

 #define INT32_FROM_LE(x) ((int32_t)(x))
 #define INT32_FROM_BE(x) INT32_SWAP(x)

 #define UINT32_FROM_LE(x) ((uint32_t)(x))
 #define UINT32_FROM_BE(x) UINT32_SWAP(x)

 #define UINT32_TO_LE(x) ((uint32_t)(x))
 #define UINT32_TO_BE(x) UINT32_SWAP(x)
#endif

#endif