1 #ifndef fooendianmacroshfoo
2 #define fooendianmacroshfoo
5 This file is part of PulseAudio.
7 Copyright 2004-2006 Lennart Poettering
8 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
10 PulseAudio is free software; you can redistribute it and/or modify
11 it under the terms of the GNU Lesser General Public License as published
12 by the Free Software Foundation; either version 2 of the License,
13 or (at your option) any later version.
15 PulseAudio is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with PulseAudio; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
29 #error "Please include config.h before including this file!"
32 #ifdef HAVE_BYTESWAP_H
36 #ifdef HAVE_BYTESWAP_H
37 #define PA_INT16_SWAP(x) ((int16_t) bswap_16((uint16_t) x))
38 #define PA_UINT16_SWAP(x) ((uint16_t) bswap_16((uint16_t) x))
39 #define PA_INT32_SWAP(x) ((int32_t) bswap_32((uint32_t) x))
40 #define PA_UINT32_SWAP(x) ((uint32_t) bswap_32((uint32_t) x))
42 #define PA_INT16_SWAP(x) ( (int16_t) ( ((uint16_t) x >> 8) | ((uint16_t) x << 8) ) )
43 #define PA_UINT16_SWAP(x) ( (uint16_t) ( ((uint16_t) x >> 8) | ((uint16_t) x << 8) ) )
44 #define PA_INT32_SWAP(x) ( (int32_t) ( ((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 8) | ((((uint32_t) x) >> 8) & 0xFF00) ) )
45 #define PA_UINT32_SWAP(x) ( (uint32_t) ( ((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 8) | ((((uint32_t) x) >> 8) & 0xFF00) ) )
48 static inline float PA_FLOAT32_SWAP(float x) {
49 uint32_t i = *(uint32_t*) &x;
50 i = PA_UINT32_SWAP(i);
54 #define PA_MAYBE_INT16_SWAP(c,x) ((c) ? PA_INT32_SWAP(x) : x)
55 #define PA_MAYBE_UINT16_SWAP(c,x) ((c) ? PA_UINT32_SWAP(x) : x)
57 #define PA_MAYBE_INT32_SWAP(c,x) ((c) ? PA_INT32_SWAP(x) : x)
58 #define PA_MAYBE_UINT32_SWAP(c,x) ((c) ? PA_UINT32_SWAP(x) : x)
60 #define PA_MAYBE_FLOAT32_SWAP(c,x) ((c) ? PA_FLOAT32_SWAP(x) : x)
62 #ifdef WORDS_BIGENDIAN
63 #define PA_INT16_FROM_LE(x) PA_INT16_SWAP(x)
64 #define PA_INT16_FROM_BE(x) ((int16_t)(x))
66 #define PA_INT16_TO_LE(x) PA_INT16_SWAP(x)
67 #define PA_INT16_TO_BE(x) ((int16_t)(x))
69 #define PA_UINT16_FROM_LE(x) PA_UINT16_SWAP(x)
70 #define PA_UINT16_FROM_BE(x) ((uint16_t)(x))
72 #define PA_UINT16_TO_LE(x) PA_UINT16_SWAP(x)
73 #define PA_UINT16_TO_BE(x) ((uint16_t)(x))
75 #define PA_INT32_FROM_LE(x) PA_INT32_SWAP(x)
76 #define PA_INT32_FROM_BE(x) ((int32_t)(x))
78 #define PA_INT32_TO_LE(x) PA_INT32_SWAP(x)
79 #define PA_INT32_TO_BE(x) ((int32_t)(x))
81 #define PA_UINT32_FROM_LE(x) PA_UINT32_SWAP(x)
82 #define PA_UINT32_FROM_BE(x) ((uint32_t)(x))
84 #define PA_UINT32_TO_LE(x) PA_UINT32_SWAP(x)
85 #define PA_UINT32_TO_BE(x) ((uint32_t)(x))
87 #define PA_FLOAT32_TO_LE(x) PA_FLOAT32_SWAP(x)
88 #define PA_FLOAT32_TO_BE(x) ((float) (x))
90 #define PA_INT16_FROM_LE(x) ((int16_t)(x))
91 #define PA_INT16_FROM_BE(x) PA_INT16_SWAP(x)
93 #define PA_INT16_TO_LE(x) ((int16_t)(x))
94 #define PA_INT16_TO_BE(x) PA_INT16_SWAP(x)
96 #define PA_UINT16_FROM_LE(x) ((uint16_t)(x))
97 #define PA_UINT16_FROM_BE(x) PA_UINT16_SWAP(x)
99 #define PA_UINT16_TO_LE(x) ((uint16_t)(x))
100 #define PA_UINT16_TO_BE(x) PA_UINT16_SWAP(x)
102 #define PA_INT32_FROM_LE(x) ((int32_t)(x))
103 #define PA_INT32_FROM_BE(x) PA_INT32_SWAP(x)
105 #define PA_INT32_TO_LE(x) ((int32_t)(x))
106 #define PA_INT32_TO_BE(x) PA_INT32_SWAP(x)
108 #define PA_UINT32_FROM_LE(x) ((uint32_t)(x))
109 #define PA_UINT32_FROM_BE(x) PA_UINT32_SWAP(x)
111 #define PA_UINT32_TO_LE(x) ((uint32_t)(x))
112 #define PA_UINT32_TO_BE(x) PA_UINT32_SWAP(x)
114 #define PA_FLOAT32_TO_LE(x) ((float) (x))
115 #define PA_FLOAT32_TO_BE(x) PA_FLOAT32_SWAP(x)