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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2008 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License
* version 2 as published by the Free Software Foundation.
*
* This program 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __ENDIANESS_HANDLER__
/* The following is based on xorg/xserver/GL/glx/glxbyteorder.h
* which is (c) IBM Corp. 2006,2007 and originally licensed under the following
* BSD-license. All modifications in navit are licensed under the GNU GPL as
* described in file "COPYRIGHT".
*
* Portions also from GNU C Library include/bits/byteswap.h Also licsend
* under the GPL.
*
* --------------------------
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, THE AUTHORS, AND/OR THEIR SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#if HAVE_BYTESWAP_H
/* machine dependent versions of byte swapping functions. GNU extension.*/
#include <byteswap.h>
#elif defined(USE_SYS_ENDIAN_H)
#include <sys/endian.h>
#elif defined(__APPLE__)
#include <libkern/OSByteOrder.h>
#define __bswap_16 OSSwapInt16
#define __bswap_32 OSSwapInt32
#define __bswap_64 OSSwapInt64
#ifndef __BYTE_ORDER
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN 4321
#if defined(__LITTLE_ENDIAN__)
#define __BYTE_ORDER __LITTLE_ENDIAN
#elif defined(__BIG_ENDIAN__)
#define __BYTE_ORDER __BIG_ENDIAN
#else
#error "No endianness defined for Mac OS!"
#endif
#endif
#elif defined(_WIN32) || defined(__CEGCC__)
#define __BIG_ENDIAN 4321
#define __LITTLE_ENDIAN 1234
#define __BYTE_ORDER __LITTLE_ENDIAN
#else
#define __bswap_16(__bsx) ((((__bsx) >> 8) & 0xff) | (((__bsx) & 0xff) << 8))
#define __bswap_32(__bsx) ((((__bsx) & 0xff000000) >> 24) | \
(((__bsx) & 0x00ff0000) >> 8) |\
(((__bsx) & 0x0000ff00) << 8) | \
(((__bsx) & 0x000000ff) << 24))
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
#define le16_to_cpu(x) __bswap_16 (x)
#define le32_to_cpu(x) __bswap_32 (x)
#define le64_to_cpu(x) __bswap_64 (x)
#define cpu_to_le16(x) __bswap_16 (x)
#define cpu_to_le32(x) __bswap_32 (x)
#define cpu_to_le64(x) __bswap_64 (x)
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define le16_to_cpu(x) (x)
#define le32_to_cpu(x) (x)
#define cpu_to_le16(x) (x)
#define cpu_to_le32(x) (x)
#else
#error "Unknown endianess"
#endif
#define __ENDIANESS_HANDLER__
#endif
|
