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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
/*
* qrencode - QR Code encoder
*
* QR Code specification in convenient format.
* Copyright (C) 2006-2017 Kentaro Fukuchi <kentaro@fukuchi.org>
*
* This library 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 2.1 of the License, or any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef QRSPEC_H
#define QRSPEC_H
#include "qrencode.h"
/******************************************************************************
* Version and capacity
*****************************************************************************/
/**
* Maximum width of a symbol
*/
#define QRSPEC_WIDTH_MAX 177
/**
* Return maximum data code length (bytes) for the version.
* @param version version of the symbol
* @param level error correction level
* @return maximum size (bytes)
*/
extern int QRspec_getDataLength(int version, QRecLevel level);
/**
* Return maximum error correction code length (bytes) for the version.
* @param version version of the symbol
* @param level error correction level
* @return ECC size (bytes)
*/
extern int QRspec_getECCLength(int version, QRecLevel level);
/**
* Return a version number that satisfies the input code length.
* @param size input code length (byte)
* @param level error correction level
* @return version number
*/
extern int QRspec_getMinimumVersion(int size, QRecLevel level);
/**
* Return the width of the symbol for the version.
* @param version vesion of the symbol
* @return width of the symbol
*/
extern int QRspec_getWidth(int version);
/**
* Return the numer of remainder bits.
* @param version vesion of the symbol
* @return number of remainder bits
*/
extern int QRspec_getRemainder(int version);
/******************************************************************************
* Length indicator
*****************************************************************************/
/**
* Return the size of length indicator for the mode and version.
* @param mode encode mode
* @param version vesion of the symbol
* @return the size of the appropriate length indicator (bits).
*/
extern int QRspec_lengthIndicator(QRencodeMode mode, int version);
/**
* Return the maximum length for the mode and version.
* @param mode encode mode
* @param version vesion of the symbol
* @return the maximum length (bytes)
*/
extern int QRspec_maximumWords(QRencodeMode mode, int version);
/******************************************************************************
* Error correction code
*****************************************************************************/
/**
* Return an array of ECC specification.
* @param version version of the symbol
* @param level error correction level
* @param spec an array of ECC specification contains as following:
* {# of type1 blocks, # of data code, # of ecc code,
* # of type2 blocks, # of data code}
*/
void QRspec_getEccSpec(int version, QRecLevel level, int spec[5]);
#define QRspec_rsBlockNum(__spec__) (__spec__[0] + __spec__[3])
#define QRspec_rsBlockNum1(__spec__) (__spec__[0])
#define QRspec_rsDataCodes1(__spec__) (__spec__[1])
#define QRspec_rsEccCodes1(__spec__) (__spec__[2])
#define QRspec_rsBlockNum2(__spec__) (__spec__[3])
#define QRspec_rsDataCodes2(__spec__) (__spec__[4])
#define QRspec_rsEccCodes2(__spec__) (__spec__[2])
#define QRspec_rsDataLength(__spec__) \
((QRspec_rsBlockNum1(__spec__) * QRspec_rsDataCodes1(__spec__)) + \
(QRspec_rsBlockNum2(__spec__) * QRspec_rsDataCodes2(__spec__)))
#define QRspec_rsEccLength(__spec__) \
(QRspec_rsBlockNum(__spec__) * QRspec_rsEccCodes1(__spec__))
/******************************************************************************
* Version information pattern
*****************************************************************************/
/**
* Return BCH encoded version information pattern that is used for the symbol
* of version 7 or greater. Use lower 18 bits.
* @param version version of the symbol
* @return BCH encoded version information pattern
*/
extern unsigned int QRspec_getVersionPattern(int version);
/******************************************************************************
* Format information
*****************************************************************************/
/**
* Return BCH encoded format information pattern.
* @param mask mask number
* @param level error correction level
* @return BCH encoded format information pattern
*/
extern unsigned int QRspec_getFormatInfo(int mask, QRecLevel level);
/******************************************************************************
* Frame
*****************************************************************************/
/**
* Return a copy of initialized frame.
* @param version version of the symbol
* @return Array of unsigned char. You can free it by free().
*/
extern unsigned char *QRspec_newFrame(int version);
/******************************************************************************
* Mode indicator
*****************************************************************************/
/**
* Mode indicator. See Table 2 of JIS X0510:2004, pp.16.
*/
#define QRSPEC_MODEID_ECI 7
#define QRSPEC_MODEID_NUM 1
#define QRSPEC_MODEID_AN 2
#define QRSPEC_MODEID_8 4
#define QRSPEC_MODEID_KANJI 8
#define QRSPEC_MODEID_FNC1FIRST 5
#define QRSPEC_MODEID_FNC1SECOND 9
#define QRSPEC_MODEID_STRUCTURE 3
#define QRSPEC_MODEID_TERMINATOR 0
#endif /* QRSPEC_H */
|
