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 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 Daniel Stenberg
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21
22#include <stdio.h>
23#include "file.h"
24
25#include "language.h"
26#include "lang.h"
27#include "debug.h"
28#include "string.h"
29#include "viewport.h"
30
31/* The following header is generated by the build system and only defines
32 MAX_LANGUAGE_SIZE to be the size of the largest currently available
33 language! */
34#include "max_language_size.h"
35
36/* These defines must match the initial bytes in the binary lang file */
37/* See tools/genlang (TODO: Use common include for both) */
38#define LANGUAGE_COOKIE 0x1a
39#define LANGUAGE_VERSION 0x06
40
41#define LANGUAGE_FLAG_RTL 0x01
42#define LANGUAGE_FLAG_UNITS_FIRST 0x02
43
44#define HEADER_SIZE 4
45#define SUBHEADER_SIZE 6
46
47static unsigned char language_buffer[MAX_LANGUAGE_SIZE];
48static unsigned char lang_options = 0;
49
50void lang_init(const unsigned char *builtin, unsigned char **dest, int count)
51{
52 while(count--) {
53 *dest++ = (unsigned char *)builtin;
54 /* advance pointer to next string */
55 builtin += strlen((char *)builtin) + 1;
56 }
57}
58
59int lang_load(const char *filename, const unsigned char *builtin,
60 unsigned char **dest, unsigned char *buffer,
61 unsigned int user_num, int max_lang_size,
62 unsigned int max_id)
63{
64 int lang_size;
65 int fd = open(filename, O_RDONLY);
66 int retcode=0;
67 unsigned char lang_header[HEADER_SIZE];
68 unsigned char sub_header[SUBHEADER_SIZE];
69 unsigned int id, foffset;
70
71 if(fd < 0)
72 return 1;
73
74 if(read(fd, lang_header, HEADER_SIZE) == HEADER_SIZE &&
75 ((lang_header[0] == LANGUAGE_COOKIE) &&
76 (lang_header[1] == LANGUAGE_VERSION) &&
77 (lang_header[2] == TARGET_ID))) {
78 /* jump to the proper entry in the table of subheaders */
79 lseek(fd, user_num * SUBHEADER_SIZE, SEEK_CUR);
80 if (read(fd, sub_header, SUBHEADER_SIZE) != SUBHEADER_SIZE)
81 {
82 DEBUGF("Language %s bad subheader %u\n", filename, user_num);
83 retcode = 4;
84 }
85 /* read in information about the requested lang */
86#if 0 /* unused */
87 unsigned int num_strings = (sub_header[0]<<8) | sub_header[1];
88#endif
89 lang_size = (sub_header[2]<<8) | sub_header[3];
90 foffset = (sub_header[4]<<8) | sub_header[5];
91 if(lang_size <= max_lang_size) {
92 /* initialize with builtin */
93 lang_init(builtin, dest, max_id);
94 lseek(fd, foffset, SEEK_SET);
95 read(fd, buffer, lang_size);
96 buffer[max_lang_size - 1] = '\0'; /* ensure buffer is null terminated */
97 while(lang_size>3) {
98 id = ((buffer[0]<<8) | buffer[1]); /* get two-byte id */
99 buffer += 2; /* pass the id */
100 if(id < max_id) {
101#if 0
102 DEBUGF("%2x New: %30s ", id, buffer);
103 DEBUGF("Replaces: %s\n", dest[id]);
104#endif
105 dest[id] = buffer; /* point to this string */
106 }
107 while(*buffer) { /* pass the string */
108 lang_size--;
109 buffer++;
110 }
111 lang_size-=3; /* the id and the terminating zero */
112 buffer++; /* pass the terminating zero-byte */
113 }
114 }
115 else {
116 DEBUGF("Language %s too large: %d\n", filename, lang_size);
117 retcode = 2;
118 }
119 }
120 else {
121 DEBUGF("Illegal language file\n");
122 retcode = 3;
123 }
124 close(fd);
125 lang_options = retcode ? 0 : lang_header[3];
126 return retcode;
127}
128
129int lang_core_load(const char *filename)
130{
131 return lang_load(filename, core_language_builtin, language_strings,
132 language_buffer, 0, MAX_LANGUAGE_SIZE,
133 LANG_LAST_INDEX_IN_ARRAY);
134}
135
136int lang_english_to_id(const char *english)
137{
138 int i;
139 unsigned char *ptr = (unsigned char *) core_language_builtin;
140 size_t ptrlen, len = strlen(english);
141 for (i = 0; i < LANG_LAST_INDEX_IN_ARRAY; i++) {
142 ptrlen = strlen((char *)ptr);
143 if ((ptrlen == len) && memcmp(ptr, english, ptrlen) == 0)
144 return i;
145 ptr += ptrlen + 1; /* advance pointer to next string */
146 }
147 return -1;
148}
149
150int lang_is_rtl(void)
151{
152 return (lang_options & LANGUAGE_FLAG_RTL) != 0;
153}
154
155int lang_units_first(void)
156{
157 return (lang_options & LANGUAGE_FLAG_UNITS_FIRST) != 0;
158}