tsiry-sandratraina.com
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1/*
2 * xrick/system/basic_funcs.h
3 *
4 * Copyright (C) 2008-2014 Pierluigi Vicinanza. All rights reserved.
5 *
6 * The use and distribution terms for this software are contained in the file
7 * named README, which can be found in the root of this distribution. By
8 * using this software in any fashion, you are agreeing to be bound by the
9 * terms of this license.
10 *
11 * You must not remove this notice, or any other, from this software.
12 */
13
14#ifndef _BASIC_FUNCS_H
15#define _BASIC_FUNCS_H
16
17#include "xrick/system/basic_types.h"
18#include "xrick/system/system.h"
19
20#ifdef __WIN32__
21/* Windows is little endian only */
22# define __ORDER_LITTLE_ENDIAN__ 1234
23# define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
24# define USE_DEFAULT_ENDIANNESS_FUNCTIONS
25# include <stdlib.h> /* _byteswap_XXX */
26
27#elif defined(ROCKBOX)
28/* Rockbox*/
29# include "plugin.h"
30# define __ORDER_LITTLE_ENDIAN__ 1234
31# define __ORDER_BIG_ENDIAN__ 4321
32# ifdef ROCKBOX_BIG_ENDIAN
33# define __BYTE_ORDER__ __ORDER_BIG_ENDIAN__
34# else
35# define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
36# endif
37
38#elif (defined(__FreeBSD__) && __FreeBSD_version >= 470000) || defined(__OpenBSD__) || defined(__NetBSD__)
39/* *BSD */
40# include <sys/endian.h>
41# define __ORDER_BIG_ENDIAN__ BIG_ENDIAN
42# define __ORDER_LITTLE_ENDIAN__ LITTLE_ENDIAN
43# define __BYTE_ORDER__ BYTE_ORDER
44
45#elif (defined(BSD) && (BSD >= 199103)) || defined(__MacOSX__)
46/* more BSD */
47# include <machine/endian.h>
48# define __ORDER_BIG_ENDIAN__ BIG_ENDIAN
49# define __ORDER_LITTLE_ENDIAN__ LITTLE_ENDIAN
50# define __BYTE_ORDER__ BYTE_ORDER
51
52#elif defined(__linux__) /*|| defined (__BEOS__)*/
53/* Linux, BeOS */
54# include <endian.h>
55# define betoh16(x) be16toh(x)
56# define letoh16(x) le16toh(x)
57# define betoh32(x) be32toh(x)
58# define letoh32(x) le32toh(x)
59
60#else
61/* shall we just '#include <endian.h>'? */
62# define USE_DEFAULT_ENDIANNESS_FUNCTIONS
63
64#endif /* __WIN32__ */
65
66/* define default endianness */
67#ifndef __ORDER_LITTLE_ENDIAN__
68# define __ORDER_LITTLE_ENDIAN__ 1234
69#endif
70
71#ifndef __ORDER_BIG_ENDIAN__
72# define __ORDER_BIG_ENDIAN__ 4321
73#endif
74
75#ifndef __BYTE_ORDER__
76# warning "Byte order not defined on your system, assuming little endian!"
77# define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
78#endif
79
80/* provide default endianness functions */
81#ifdef USE_DEFAULT_ENDIANNESS_FUNCTIONS
82
83# define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
84
85inline uint32_t swap32(uint32_t x)
86{
87# ifdef _MSC_VER
88 return _byteswap_ulong(x);
89# elif (GCC_VERSION > 40300) || defined(__clang__)
90 return __builtin_bswap32(x);
91# else
92 return (x >> 24) |
93 ((x >> 8) & 0x0000FF00) |
94 ((x << 8) & 0x00FF0000) |
95 (x << 24);
96# endif /* _MSC_VER */
97}
98
99inline uint16_t swap16(uint16_t x)
100{
101# ifdef _MSC_VER
102 return _byteswap_ushort(x);
103# elif (GCC_VERSION > 40800) || defined(__clang__)
104 return __builtin_bswap16(x);
105# else
106 return (x << 8)|(x >> 8);
107# endif /* _MSC_VER */
108}
109
110# if (__BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__)
111inline uint16_t htobe16(uint16_t host) { return swap16(host); }
112inline uint16_t htole16(uint16_t host) { return host; }
113inline uint16_t betoh16(uint16_t big_endian) { return swap16(big_endian); }
114inline uint16_t letoh16(uint16_t little_endian) { return little_endian; }
115
116inline uint32_t htobe32(uint32_t host) { return swap32(host); }
117inline uint32_t htole32(uint32_t host) { return host; }
118inline uint32_t betoh32(uint32_t big_endian) { return swap32(big_endian); }
119inline uint32_t letoh32(uint32_t little_endian) { return little_endian; }
120
121# elif (__BYTE_ORDER__==__ORDER_BIG_ENDIAN__)
122inline uint16_t htobe16(uint16_t host) { return host; }
123inline uint16_t htole16(uint16_t host) { return swap16(host); }
124inline uint16_t betoh16(uint16_t big_endian) { return big_endian; }
125inline uint16_t letoh16(uint16_t little_endian) { return swap16(little_endian); }
126
127inline uint32_t htobe32(uint32_t host) { return host; }
128inline uint32_t htole32(uint32_t host) { return swap32(host); }
129inline uint32_t betoh32(uint32_t big_endian) { return big_endian; }
130inline uint32_t letoh32(uint32_t little_endian) { return swap32(little_endian); }
131
132# else
133# error "Unknown/unsupported byte order!"
134
135# endif
136
137#endif /* USE_DEFAULT_ENDIANNESS_FUNCTIONS */
138
139#endif /* ndef _BASIC_FUNCS_H */
140
141/* eof */