| [347] | 1 | <?php
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| 2 | //============================================================+
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| 3 | // File name : qrcode.php
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| 4 | // Version : 1.0.010
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| 5 | // Begin : 2010-03-22
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| 6 | // Last Update : 2012-07-25
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| 7 | // Author : Nicola Asuni - Tecnick.com LTD - www.tecnick.com - info@tecnick.com
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| 8 | // License : GNU-LGPL v3 (http://www.gnu.org/copyleft/lesser.html)
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| 9 | // -------------------------------------------------------------------
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| 10 | // Copyright (C) 2010-2012 Nicola Asuni - Tecnick.com LTD
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| 11 | //
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| 12 | // This file is part of TCPDF software library.
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| 13 | //
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| 14 | // TCPDF is free software: you can redistribute it and/or modify it
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| 15 | // under the terms of the GNU Lesser General Public License as
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| 16 | // published by the Free Software Foundation, either version 3 of the
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| 17 | // License, or (at your option) any later version.
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| 18 | //
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| 19 | // TCPDF is distributed in the hope that it will be useful, but
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| 20 | // WITHOUT ANY WARRANTY; without even the implied warranty of
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| 21 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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| 22 | // See the GNU Lesser General Public License for more details.
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| 23 | //
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| 24 | // You should have received a copy of the GNU Lesser General Public License
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| 25 | // along with TCPDF. If not, see <http://www.gnu.org/licenses/>.
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| 26 | //
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| 27 | // See LICENSE.TXT file for more information.
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| 28 | // -------------------------------------------------------------------
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| 29 | //
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| 30 | // DESCRIPTION :
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| 31 | //
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| 32 | // Class to create QR-code arrays for TCPDF class.
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| 33 | // QR Code symbol is a 2D barcode that can be scanned by
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| 34 | // handy terminals such as a mobile phone with CCD.
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| 35 | // The capacity of QR Code is up to 7000 digits or 4000
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| 36 | // characters, and has high robustness.
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| 37 | // This class supports QR Code model 2, described in
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| 38 | // JIS (Japanese Industrial Standards) X0510:2004
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| 39 | // or ISO/IEC 18004.
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| 40 | // Currently the following features are not supported:
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| 41 | // ECI and FNC1 mode, Micro QR Code, QR Code model 1,
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| 42 | // Structured mode.
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| 43 | //
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| 44 | // This class is derived from the following projects:
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| 45 | // ---------------------------------------------------------
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| 46 | // "PHP QR Code encoder"
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| 47 | // License: GNU-LGPLv3
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| 48 | // Copyright (C) 2010 by Dominik Dzienia <deltalab at poczta dot fm>
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| 49 | // http://phpqrcode.sourceforge.net/
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| 50 | // https://sourceforge.net/projects/phpqrcode/
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| 51 | //
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| 52 | // The "PHP QR Code encoder" is based on
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| 53 | // "C libqrencode library" (ver. 3.1.1)
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| 54 | // License: GNU-LGPL 2.1
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| 55 | // Copyright (C) 2006-2010 by Kentaro Fukuchi
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| 56 | // http://megaui.net/fukuchi/works/qrencode/index.en.html
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| 57 | //
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| 58 | // Reed-Solomon code encoder is written by Phil Karn, KA9Q.
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| 59 | // Copyright (C) 2002-2006 Phil Karn, KA9Q
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| 60 | //
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| 61 | // QR Code is registered trademark of DENSO WAVE INCORPORATED
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| 62 | // http://www.denso-wave.com/qrcode/index-e.html
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| 63 | // ---------------------------------------------------------
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| 64 | //============================================================+
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| 65 |
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| 66 | /**
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| 67 | * @file
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| 68 | * Class to create QR-code arrays for TCPDF class.
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| 69 | * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
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| 70 | * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
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| 71 | * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
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| 72 | * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
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| 73 | *
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| 74 | * This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
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| 75 | * Please read comments on this class source file for full copyright and license information.
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| 76 | *
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| 77 | * @package com.tecnick.tcpdf
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| 78 | * @author Nicola Asuni
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| 79 | * @version 1.0.010
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| 80 | */
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| 81 |
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| 82 | // definitions
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| 83 | if (!defined('QRCODEDEFS')) {
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| 84 |
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| 85 | /**
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| 86 | * Indicate that definitions for this class are set
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| 87 | */
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| 88 | define('QRCODEDEFS', true);
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| 89 |
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| 90 | // -----------------------------------------------------
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| 91 |
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| 92 | // Encoding modes (characters which can be encoded in QRcode)
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| 93 |
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| 94 | /**
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| 95 | * Encoding mode
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| 96 | */
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| 97 | define('QR_MODE_NL', -1);
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| 98 |
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| 99 | /**
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| 100 | * Encoding mode numeric (0-9). 3 characters are encoded to 10bit length. In theory, 7089 characters or less can be stored in a QRcode.
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| 101 | */
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| 102 | define('QR_MODE_NM', 0);
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| 103 |
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| 104 | /**
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| 105 | * Encoding mode alphanumeric (0-9A-Z $%*+-./:) 45characters. 2 characters are encoded to 11bit length. In theory, 4296 characters or less can be stored in a QRcode.
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| 106 | */
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| 107 | define('QR_MODE_AN', 1);
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| 108 |
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| 109 | /**
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| 110 | * Encoding mode 8bit byte data. In theory, 2953 characters or less can be stored in a QRcode.
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| 111 | */
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| 112 | define('QR_MODE_8B', 2);
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| 113 |
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| 114 | /**
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| 115 | * Encoding mode KANJI. A KANJI character (multibyte character) is encoded to 13bit length. In theory, 1817 characters or less can be stored in a QRcode.
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| 116 | */
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| 117 | define('QR_MODE_KJ', 3);
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| 118 |
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| 119 | /**
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| 120 | * Encoding mode STRUCTURED (currently unsupported)
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| 121 | */
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| 122 | define('QR_MODE_ST', 4);
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| 123 |
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| 124 | // -----------------------------------------------------
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| 125 |
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| 126 | // Levels of error correction.
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| 127 | // QRcode has a function of an error correcting for miss reading that white is black.
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| 128 | // Error correcting is defined in 4 level as below.
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| 129 |
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| 130 | /**
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| 131 | * Error correction level L : About 7% or less errors can be corrected.
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| 132 | */
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| 133 | define('QR_ECLEVEL_L', 0);
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| 134 |
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| 135 | /**
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| 136 | * Error correction level M : About 15% or less errors can be corrected.
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| 137 | */
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| 138 | define('QR_ECLEVEL_M', 1);
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| 139 |
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| 140 | /**
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| 141 | * Error correction level Q : About 25% or less errors can be corrected.
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| 142 | */
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| 143 | define('QR_ECLEVEL_Q', 2);
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| 144 |
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| 145 | /**
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| 146 | * Error correction level H : About 30% or less errors can be corrected.
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| 147 | */
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| 148 | define('QR_ECLEVEL_H', 3);
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| 149 |
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| 150 | // -----------------------------------------------------
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| 151 |
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| 152 | // Version. Size of QRcode is defined as version.
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| 153 | // Version is from 1 to 40.
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| 154 | // Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases.
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| 155 | // So version 40 is 177*177 matrix.
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| 156 |
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| 157 | /**
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| 158 | * Maximum QR Code version.
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| 159 | */
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| 160 | define('QRSPEC_VERSION_MAX', 40);
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| 161 |
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| 162 | /**
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| 163 | * Maximum matrix size for maximum version (version 40 is 177*177 matrix).
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| 164 | */
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| 165 | define('QRSPEC_WIDTH_MAX', 177);
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| 166 |
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| 167 | // -----------------------------------------------------
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| 168 |
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| 169 | /**
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| 170 | * Matrix index to get width from $capacity array.
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| 171 | */
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| 172 | define('QRCAP_WIDTH', 0);
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| 173 |
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| 174 | /**
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| 175 | * Matrix index to get number of words from $capacity array.
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| 176 | */
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| 177 | define('QRCAP_WORDS', 1);
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| 178 |
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| 179 | /**
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| 180 | * Matrix index to get remainder from $capacity array.
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| 181 | */
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| 182 | define('QRCAP_REMINDER', 2);
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| 183 |
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| 184 | /**
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| 185 | * Matrix index to get error correction level from $capacity array.
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| 186 | */
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| 187 | define('QRCAP_EC', 3);
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| 188 |
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| 189 | // -----------------------------------------------------
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| 190 |
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| 191 | // Structure (currently usupported)
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| 192 |
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| 193 | /**
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| 194 | * Number of header bits for structured mode
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| 195 | */
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| 196 | define('STRUCTURE_HEADER_BITS', 20);
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| 197 |
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| 198 | /**
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| 199 | * Max number of symbols for structured mode
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| 200 | */
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| 201 | define('MAX_STRUCTURED_SYMBOLS', 16);
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| 202 |
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| 203 | // -----------------------------------------------------
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| 204 |
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| 205 | // Masks
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| 206 |
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| 207 | /**
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| 208 | * Down point base value for case 1 mask pattern (concatenation of same color in a line or a column)
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| 209 | */
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| 210 | define('N1', 3);
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| 211 |
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| 212 | /**
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| 213 | * Down point base value for case 2 mask pattern (module block of same color)
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| 214 | */
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| 215 | define('N2', 3);
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| 216 |
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| 217 | /**
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| 218 | * Down point base value for case 3 mask pattern (1:1:3:1:1(dark:bright:dark:bright:dark)pattern in a line or a column)
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| 219 | */
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| 220 | define('N3', 40);
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| 221 |
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| 222 | /**
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| 223 | * Down point base value for case 4 mask pattern (ration of dark modules in whole)
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| 224 | */
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| 225 | define('N4', 10);
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| 226 |
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| 227 | // -----------------------------------------------------
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| 228 |
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| 229 | // Optimization settings
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| 230 |
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| 231 | /**
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| 232 | * if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
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| 233 | */
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| 234 | define('QR_FIND_BEST_MASK', true);
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| 235 |
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| 236 | /**
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| 237 | * if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
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| 238 | */
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| 239 | define('QR_FIND_FROM_RANDOM', 2);
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| 240 |
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| 241 | /**
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| 242 | * when QR_FIND_BEST_MASK === false
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| 243 | */
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| 244 | define('QR_DEFAULT_MASK', 2);
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| 245 |
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| 246 | // -----------------------------------------------------
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| 247 |
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| 248 | } // end of definitions
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| 249 |
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| 250 | // #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#
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| 251 |
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| 252 | // for compatibility with PHP4
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| 253 | if (!function_exists('str_split')) {
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| 254 | /**
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| 255 | * Convert a string to an array (needed for PHP4 compatibility)
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| 256 | * @param $string (string) The input string.
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| 257 | * @param $split_length (int) Maximum length of the chunk.
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| 258 | * @return If the optional split_length parameter is specified, the returned array will be broken down into chunks with each being split_length in length, otherwise each chunk will be one character in length. FALSE is returned if split_length is less than 1. If the split_length length exceeds the length of string , the entire string is returned as the first (and only) array element.
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| 259 | */
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| 260 | function str_split($string, $split_length=1) {
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| 261 | if ((strlen($string) > $split_length) OR (!$split_length)) {
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| 262 | do {
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| 263 | $c = strlen($string);
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| 264 | $parts[] = substr($string, 0, $split_length);
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| 265 | $string = substr($string, $split_length);
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| 266 | } while ($string !== false);
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| 267 | } else {
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| 268 | $parts = array($string);
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| 269 | }
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| 270 | return $parts;
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| 271 | }
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| 272 | }
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| 273 |
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| 274 | // #####################################################
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| 275 |
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| 276 | /**
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| 277 | * @class QRcode
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| 278 | * Class to create QR-code arrays for TCPDF class.
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| 279 | * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
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| 280 | * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
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| 281 | * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
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| 282 | * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
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| 283 | *
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| 284 | * This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
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| 285 | * Please read comments on this class source file for full copyright and license information.
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| 286 | *
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| 287 | * @package com.tecnick.tcpdf
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| 288 | * @author Nicola Asuni
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| 289 | * @version 1.0.010
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| 290 | */
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| 291 | class QRcode {
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| 292 |
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| 293 | /**
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| 294 | * Barcode array to be returned which is readable by TCPDF.
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| 295 | * @protected
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| 296 | */
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| 297 | protected $barcode_array = array();
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| 298 |
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| 299 | /**
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| 300 | * QR code version. Size of QRcode is defined as version. Version is from 1 to 40. Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases. So version 40 is 177*177 matrix.
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| 301 | * @protected
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| 302 | */
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| 303 | protected $version = 0;
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| 304 |
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| 305 | /**
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| 306 | * Levels of error correction. See definitions for possible values.
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| 307 | * @protected
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| 308 | */
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| 309 | protected $level = QR_ECLEVEL_L;
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| 310 |
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| 311 | /**
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| 312 | * Encoding mode.
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| 313 | * @protected
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| 314 | */
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| 315 | protected $hint = QR_MODE_8B;
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| 316 |
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| 317 | /**
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| 318 | * Boolean flag, if true the input string will be converted to uppercase.
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| 319 | * @protected
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| 320 | */
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| 321 | protected $casesensitive = true;
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| 322 |
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| 323 | /**
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| 324 | * Structured QR code (not supported yet).
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| 325 | * @protected
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| 326 | */
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| 327 | protected $structured = 0;
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| 328 |
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| 329 | /**
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| 330 | * Mask data.
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| 331 | * @protected
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| 332 | */
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| 333 | protected $data;
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| 334 |
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| 335 | // FrameFiller
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| 336 |
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| 337 | /**
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| 338 | * Width.
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| 339 | * @protected
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| 340 | */
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| 341 | protected $width;
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| 342 |
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| 343 | /**
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| 344 | * Frame.
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| 345 | * @protected
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| 346 | */
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| 347 | protected $frame;
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| 348 |
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| 349 | /**
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| 350 | * X position of bit.
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| 351 | * @protected
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| 352 | */
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| 353 | protected $x;
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| 354 |
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| 355 | /**
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| 356 | * Y position of bit.
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| 357 | * @protected
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| 358 | */
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| 359 | protected $y;
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| 360 |
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| 361 | /**
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| 362 | * Direction.
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| 363 | * @protected
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| 364 | */
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| 365 | protected $dir;
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| 366 |
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| 367 | /**
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| 368 | * Single bit value.
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| 369 | * @protected
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| 370 | */
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| 371 | protected $bit;
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| 372 |
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| 373 | // ---- QRrawcode ----
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| 374 |
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| 375 | /**
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| 376 | * Data code.
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| 377 | * @protected
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| 378 | */
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| 379 | protected $datacode = array();
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| 380 |
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| 381 | /**
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| 382 | * Error correction code.
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| 383 | * @protected
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| 384 | */
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| 385 | protected $ecccode = array();
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| 386 |
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| 387 | /**
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| 388 | * Blocks.
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| 389 | * @protected
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| 390 | */
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| 391 | protected $blocks;
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| 392 |
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| 393 | /**
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| 394 | * Reed-Solomon blocks.
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| 395 | * @protected
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| 396 | */
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| 397 | protected $rsblocks = array(); //of RSblock
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| 398 |
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| 399 | /**
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| 400 | * Counter.
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| 401 | * @protected
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| 402 | */
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| 403 | protected $count;
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| 404 |
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| 405 | /**
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| 406 | * Data length.
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| 407 | * @protected
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| 408 | */
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| 409 | protected $dataLength;
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| 410 |
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| 411 | /**
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| 412 | * Error correction length.
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| 413 | * @protected
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| 414 | */
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| 415 | protected $eccLength;
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| 416 |
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| 417 | /**
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| 418 | * Value b1.
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| 419 | * @protected
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| 420 | */
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| 421 | protected $b1;
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| 422 |
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| 423 | // ---- QRmask ----
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| 424 |
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| 425 | /**
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| 426 | * Run length.
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| 427 | * @protected
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| 428 | */
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| 429 | protected $runLength = array();
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| 430 |
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| 431 | // ---- QRsplit ----
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| 432 |
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| 433 | /**
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| 434 | * Input data string.
|
|---|
| 435 | * @protected
|
|---|
| 436 | */
|
|---|
| 437 | protected $dataStr = '';
|
|---|
| 438 |
|
|---|
| 439 | /**
|
|---|
| 440 | * Input items.
|
|---|
| 441 | * @protected
|
|---|
| 442 | */
|
|---|
| 443 | protected $items;
|
|---|
| 444 |
|
|---|
| 445 | // Reed-Solomon items
|
|---|
| 446 |
|
|---|
| 447 | /**
|
|---|
| 448 | * Reed-Solomon items.
|
|---|
| 449 | * @protected
|
|---|
| 450 | */
|
|---|
| 451 | protected $rsitems = array();
|
|---|
| 452 |
|
|---|
| 453 | /**
|
|---|
| 454 | * Array of frames.
|
|---|
| 455 | * @protected
|
|---|
| 456 | */
|
|---|
| 457 | protected $frames = array();
|
|---|
| 458 |
|
|---|
| 459 | /**
|
|---|
| 460 | * Alphabet-numeric convesion table.
|
|---|
| 461 | * @protected
|
|---|
| 462 | */
|
|---|
| 463 | protected $anTable = array(
|
|---|
| 464 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
|
|---|
| 465 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
|
|---|
| 466 | 36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43, //
|
|---|
| 467 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 44, -1, -1, -1, -1, -1, //
|
|---|
| 468 | -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, //
|
|---|
| 469 | 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, //
|
|---|
| 470 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
|
|---|
| 471 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 //
|
|---|
| 472 | );
|
|---|
| 473 |
|
|---|
| 474 | /**
|
|---|
| 475 | * Array Table of the capacity of symbols.
|
|---|
| 476 | * See Table 1 (pp.13) and Table 12-16 (pp.30-36), JIS X0510:2004.
|
|---|
| 477 | * @protected
|
|---|
| 478 | */
|
|---|
| 479 | protected $capacity = array(
|
|---|
| 480 | array( 0, 0, 0, array( 0, 0, 0, 0)), //
|
|---|
| 481 | array( 21, 26, 0, array( 7, 10, 13, 17)), // 1
|
|---|
| 482 | array( 25, 44, 7, array( 10, 16, 22, 28)), //
|
|---|
| 483 | array( 29, 70, 7, array( 15, 26, 36, 44)), //
|
|---|
| 484 | array( 33, 100, 7, array( 20, 36, 52, 64)), //
|
|---|
| 485 | array( 37, 134, 7, array( 26, 48, 72, 88)), // 5
|
|---|
| 486 | array( 41, 172, 7, array( 36, 64, 96, 112)), //
|
|---|
| 487 | array( 45, 196, 0, array( 40, 72, 108, 130)), //
|
|---|
| 488 | array( 49, 242, 0, array( 48, 88, 132, 156)), //
|
|---|
| 489 | array( 53, 292, 0, array( 60, 110, 160, 192)), //
|
|---|
| 490 | array( 57, 346, 0, array( 72, 130, 192, 224)), // 10
|
|---|
| 491 | array( 61, 404, 0, array( 80, 150, 224, 264)), //
|
|---|
| 492 | array( 65, 466, 0, array( 96, 176, 260, 308)), //
|
|---|
| 493 | array( 69, 532, 0, array( 104, 198, 288, 352)), //
|
|---|
| 494 | array( 73, 581, 3, array( 120, 216, 320, 384)), //
|
|---|
| 495 | array( 77, 655, 3, array( 132, 240, 360, 432)), // 15
|
|---|
| 496 | array( 81, 733, 3, array( 144, 280, 408, 480)), //
|
|---|
| 497 | array( 85, 815, 3, array( 168, 308, 448, 532)), //
|
|---|
| 498 | array( 89, 901, 3, array( 180, 338, 504, 588)), //
|
|---|
| 499 | array( 93, 991, 3, array( 196, 364, 546, 650)), //
|
|---|
| 500 | array( 97, 1085, 3, array( 224, 416, 600, 700)), // 20
|
|---|
| 501 | array(101, 1156, 4, array( 224, 442, 644, 750)), //
|
|---|
| 502 | array(105, 1258, 4, array( 252, 476, 690, 816)), //
|
|---|
| 503 | array(109, 1364, 4, array( 270, 504, 750, 900)), //
|
|---|
| 504 | array(113, 1474, 4, array( 300, 560, 810, 960)), //
|
|---|
| 505 | array(117, 1588, 4, array( 312, 588, 870, 1050)), // 25
|
|---|
| 506 | array(121, 1706, 4, array( 336, 644, 952, 1110)), //
|
|---|
| 507 | array(125, 1828, 4, array( 360, 700, 1020, 1200)), //
|
|---|
| 508 | array(129, 1921, 3, array( 390, 728, 1050, 1260)), //
|
|---|
| 509 | array(133, 2051, 3, array( 420, 784, 1140, 1350)), //
|
|---|
| 510 | array(137, 2185, 3, array( 450, 812, 1200, 1440)), // 30
|
|---|
| 511 | array(141, 2323, 3, array( 480, 868, 1290, 1530)), //
|
|---|
| 512 | array(145, 2465, 3, array( 510, 924, 1350, 1620)), //
|
|---|
| 513 | array(149, 2611, 3, array( 540, 980, 1440, 1710)), //
|
|---|
| 514 | array(153, 2761, 3, array( 570, 1036, 1530, 1800)), //
|
|---|
| 515 | array(157, 2876, 0, array( 570, 1064, 1590, 1890)), // 35
|
|---|
| 516 | array(161, 3034, 0, array( 600, 1120, 1680, 1980)), //
|
|---|
| 517 | array(165, 3196, 0, array( 630, 1204, 1770, 2100)), //
|
|---|
| 518 | array(169, 3362, 0, array( 660, 1260, 1860, 2220)), //
|
|---|
| 519 | array(173, 3532, 0, array( 720, 1316, 1950, 2310)), //
|
|---|
| 520 | array(177, 3706, 0, array( 750, 1372, 2040, 2430)) // 40
|
|---|
| 521 | );
|
|---|
| 522 |
|
|---|
| 523 | /**
|
|---|
| 524 | * Array Length indicator.
|
|---|
| 525 | * @protected
|
|---|
| 526 | */
|
|---|
| 527 | protected $lengthTableBits = array(
|
|---|
| 528 | array(10, 12, 14),
|
|---|
| 529 | array( 9, 11, 13),
|
|---|
| 530 | array( 8, 16, 16),
|
|---|
| 531 | array( 8, 10, 12)
|
|---|
| 532 | );
|
|---|
| 533 |
|
|---|
| 534 | /**
|
|---|
| 535 | * Array Table of the error correction code (Reed-Solomon block).
|
|---|
| 536 | * See Table 12-16 (pp.30-36), JIS X0510:2004.
|
|---|
| 537 | * @protected
|
|---|
| 538 | */
|
|---|
| 539 | protected $eccTable = array(
|
|---|
| 540 | array(array( 0, 0), array( 0, 0), array( 0, 0), array( 0, 0)), //
|
|---|
| 541 | array(array( 1, 0), array( 1, 0), array( 1, 0), array( 1, 0)), // 1
|
|---|
| 542 | array(array( 1, 0), array( 1, 0), array( 1, 0), array( 1, 0)), //
|
|---|
| 543 | array(array( 1, 0), array( 1, 0), array( 2, 0), array( 2, 0)), //
|
|---|
| 544 | array(array( 1, 0), array( 2, 0), array( 2, 0), array( 4, 0)), //
|
|---|
| 545 | array(array( 1, 0), array( 2, 0), array( 2, 2), array( 2, 2)), // 5
|
|---|
| 546 | array(array( 2, 0), array( 4, 0), array( 4, 0), array( 4, 0)), //
|
|---|
| 547 | array(array( 2, 0), array( 4, 0), array( 2, 4), array( 4, 1)), //
|
|---|
| 548 | array(array( 2, 0), array( 2, 2), array( 4, 2), array( 4, 2)), //
|
|---|
| 549 | array(array( 2, 0), array( 3, 2), array( 4, 4), array( 4, 4)), //
|
|---|
| 550 | array(array( 2, 2), array( 4, 1), array( 6, 2), array( 6, 2)), // 10
|
|---|
| 551 | array(array( 4, 0), array( 1, 4), array( 4, 4), array( 3, 8)), //
|
|---|
| 552 | array(array( 2, 2), array( 6, 2), array( 4, 6), array( 7, 4)), //
|
|---|
| 553 | array(array( 4, 0), array( 8, 1), array( 8, 4), array(12, 4)), //
|
|---|
| 554 | array(array( 3, 1), array( 4, 5), array(11, 5), array(11, 5)), //
|
|---|
| 555 | array(array( 5, 1), array( 5, 5), array( 5, 7), array(11, 7)), // 15
|
|---|
| 556 | array(array( 5, 1), array( 7, 3), array(15, 2), array( 3, 13)), //
|
|---|
| 557 | array(array( 1, 5), array(10, 1), array( 1, 15), array( 2, 17)), //
|
|---|
| 558 | array(array( 5, 1), array( 9, 4), array(17, 1), array( 2, 19)), //
|
|---|
| 559 | array(array( 3, 4), array( 3, 11), array(17, 4), array( 9, 16)), //
|
|---|
| 560 | array(array( 3, 5), array( 3, 13), array(15, 5), array(15, 10)), // 20
|
|---|
| 561 | array(array( 4, 4), array(17, 0), array(17, 6), array(19, 6)), //
|
|---|
| 562 | array(array( 2, 7), array(17, 0), array( 7, 16), array(34, 0)), //
|
|---|
| 563 | array(array( 4, 5), array( 4, 14), array(11, 14), array(16, 14)), //
|
|---|
| 564 | array(array( 6, 4), array( 6, 14), array(11, 16), array(30, 2)), //
|
|---|
| 565 | array(array( 8, 4), array( 8, 13), array( 7, 22), array(22, 13)), // 25
|
|---|
| 566 | array(array(10, 2), array(19, 4), array(28, 6), array(33, 4)), //
|
|---|
| 567 | array(array( 8, 4), array(22, 3), array( 8, 26), array(12, 28)), //
|
|---|
| 568 | array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)), //
|
|---|
| 569 | array(array( 7, 7), array(21, 7), array( 1, 37), array(19, 26)), //
|
|---|
| 570 | array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), // 30
|
|---|
| 571 | array(array(13, 3), array( 2, 29), array(42, 1), array(23, 28)), //
|
|---|
| 572 | array(array(17, 0), array(10, 23), array(10, 35), array(19, 35)), //
|
|---|
| 573 | array(array(17, 1), array(14, 21), array(29, 19), array(11, 46)), //
|
|---|
| 574 | array(array(13, 6), array(14, 23), array(44, 7), array(59, 1)), //
|
|---|
| 575 | array(array(12, 7), array(12, 26), array(39, 14), array(22, 41)), // 35
|
|---|
| 576 | array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)), //
|
|---|
| 577 | array(array(17, 4), array(29, 14), array(49, 10), array(24, 46)), //
|
|---|
| 578 | array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)), //
|
|---|
| 579 | array(array(20, 4), array(40, 7), array(43, 22), array(10, 67)), //
|
|---|
| 580 | array(array(19, 6), array(18, 31), array(34, 34), array(20, 61)) // 40
|
|---|
| 581 | );
|
|---|
| 582 |
|
|---|
| 583 | /**
|
|---|
| 584 | * Array Positions of alignment patterns.
|
|---|
| 585 | * This array includes only the second and the third position of the alignment patterns. Rest of them can be calculated from the distance between them.
|
|---|
| 586 | * See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
|
|---|
| 587 | * @protected
|
|---|
| 588 | */
|
|---|
| 589 | protected $alignmentPattern = array(
|
|---|
| 590 | array( 0, 0),
|
|---|
| 591 | array( 0, 0), array(18, 0), array(22, 0), array(26, 0), array(30, 0), // 1- 5
|
|---|
| 592 | array(34, 0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
|
|---|
| 593 | array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), // 11-15
|
|---|
| 594 | array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), // 16-20
|
|---|
| 595 | array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), // 21-25
|
|---|
| 596 | array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), // 26-30
|
|---|
| 597 | array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), // 31-35
|
|---|
| 598 | array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58) // 35-40
|
|---|
| 599 | );
|
|---|
| 600 |
|
|---|
| 601 | /**
|
|---|
| 602 | * Array Version information pattern (BCH coded).
|
|---|
| 603 | * See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
|
|---|
| 604 | * size: [QRSPEC_VERSION_MAX - 6]
|
|---|
| 605 | * @protected
|
|---|
| 606 | */
|
|---|
| 607 | protected $versionPattern = array(
|
|---|
| 608 | 0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d, //
|
|---|
| 609 | 0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9, //
|
|---|
| 610 | 0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75, //
|
|---|
| 611 | 0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64, //
|
|---|
| 612 | 0x27541, 0x28c69
|
|---|
| 613 | );
|
|---|
| 614 |
|
|---|
| 615 | /**
|
|---|
| 616 | * Array Format information
|
|---|
| 617 | * @protected
|
|---|
| 618 | */
|
|---|
| 619 | protected $formatInfo = array(
|
|---|
| 620 | array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976), //
|
|---|
| 621 | array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0), //
|
|---|
| 622 | array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed), //
|
|---|
| 623 | array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b) //
|
|---|
| 624 | );
|
|---|
| 625 |
|
|---|
| 626 |
|
|---|
| 627 | // -------------------------------------------------
|
|---|
| 628 | // -------------------------------------------------
|
|---|
| 629 |
|
|---|
| 630 |
|
|---|
| 631 | /**
|
|---|
| 632 | * This is the class constructor.
|
|---|
| 633 | * Creates a QRcode object
|
|---|
| 634 | * @param $code (string) code to represent using QRcode
|
|---|
| 635 | * @param $eclevel (string) error level: <ul><li>L : About 7% or less errors can be corrected.</li><li>M : About 15% or less errors can be corrected.</li><li>Q : About 25% or less errors can be corrected.</li><li>H : About 30% or less errors can be corrected.</li></ul>
|
|---|
| 636 | * @public
|
|---|
| 637 | * @since 1.0.000
|
|---|
| 638 | */
|
|---|
| 639 | public function __construct($code, $eclevel = 'L') {
|
|---|
| 640 | $barcode_array = array();
|
|---|
| 641 | if ((is_null($code)) OR ($code == '\0') OR ($code == '')) {
|
|---|
| 642 | return false;
|
|---|
| 643 | }
|
|---|
| 644 | // set error correction level
|
|---|
| 645 | $this->level = array_search($eclevel, array('L', 'M', 'Q', 'H'));
|
|---|
| 646 | if ($this->level === false) {
|
|---|
| 647 | $this->level = QR_ECLEVEL_L;
|
|---|
| 648 | }
|
|---|
| 649 | if (($this->hint != QR_MODE_8B) AND ($this->hint != QR_MODE_KJ)) {
|
|---|
| 650 | return false;
|
|---|
| 651 | }
|
|---|
| 652 | if (($this->version < 0) OR ($this->version > QRSPEC_VERSION_MAX)) {
|
|---|
| 653 | return false;
|
|---|
| 654 | }
|
|---|
| 655 | $this->items = array();
|
|---|
| 656 | $this->encodeString($code);
|
|---|
| 657 | if (is_null($this->data)) {
|
|---|
| 658 | return false;
|
|---|
| 659 | }
|
|---|
| 660 | $qrTab = $this->binarize($this->data);
|
|---|
| 661 | $size = count($qrTab);
|
|---|
| 662 | $barcode_array['num_rows'] = $size;
|
|---|
| 663 | $barcode_array['num_cols'] = $size;
|
|---|
| 664 | $barcode_array['bcode'] = array();
|
|---|
| 665 | foreach ($qrTab as $line) {
|
|---|
| 666 | $arrAdd = array();
|
|---|
| 667 | foreach (str_split($line) as $char) {
|
|---|
| 668 | $arrAdd[] = ($char=='1')?1:0;
|
|---|
| 669 | }
|
|---|
| 670 | $barcode_array['bcode'][] = $arrAdd;
|
|---|
| 671 | }
|
|---|
| 672 | $this->barcode_array = $barcode_array;
|
|---|
| 673 | }
|
|---|
| 674 |
|
|---|
| 675 | /**
|
|---|
| 676 | * Returns a barcode array which is readable by TCPDF
|
|---|
| 677 | * @return array barcode array readable by TCPDF;
|
|---|
| 678 | * @public
|
|---|
| 679 | */
|
|---|
| 680 | public function getBarcodeArray() {
|
|---|
| 681 | return $this->barcode_array;
|
|---|
| 682 | }
|
|---|
| 683 |
|
|---|
| 684 | /**
|
|---|
| 685 | * Convert the frame in binary form
|
|---|
| 686 | * @param $frame (array) array to binarize
|
|---|
| 687 | * @return array frame in binary form
|
|---|
| 688 | */
|
|---|
| 689 | protected function binarize($frame) {
|
|---|
| 690 | $len = count($frame);
|
|---|
| 691 | // the frame is square (width = height)
|
|---|
| 692 | foreach ($frame as &$frameLine) {
|
|---|
| 693 | for ($i=0; $i<$len; $i++) {
|
|---|
| 694 | $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
|
|---|
| 695 | }
|
|---|
| 696 | }
|
|---|
| 697 | return $frame;
|
|---|
| 698 | }
|
|---|
| 699 |
|
|---|
| 700 | /**
|
|---|
| 701 | * Encode the input string to QR code
|
|---|
| 702 | * @param $string (string) input string to encode
|
|---|
| 703 | */
|
|---|
| 704 | protected function encodeString($string) {
|
|---|
| 705 | $this->dataStr = $string;
|
|---|
| 706 | if (!$this->casesensitive) {
|
|---|
| 707 | $this->toUpper();
|
|---|
| 708 | }
|
|---|
| 709 | $ret = $this->splitString();
|
|---|
| 710 | if ($ret < 0) {
|
|---|
| 711 | return NULL;
|
|---|
| 712 | }
|
|---|
| 713 | $this->encodeMask(-1);
|
|---|
| 714 | }
|
|---|
| 715 |
|
|---|
| 716 | /**
|
|---|
| 717 | * Encode mask
|
|---|
| 718 | * @param $mask (int) masking mode
|
|---|
| 719 | */
|
|---|
| 720 | protected function encodeMask($mask) {
|
|---|
| 721 | $spec = array(0, 0, 0, 0, 0);
|
|---|
| 722 | $this->datacode = $this->getByteStream($this->items);
|
|---|
| 723 |
|
|---|
| 724 | if (is_null($this->datacode)) {
|
|---|
| 725 | return NULL;
|
|---|
| 726 | }
|
|---|
| 727 | $spec = $this->getEccSpec($this->version, $this->level, $spec);
|
|---|
| 728 | $this->b1 = $this->rsBlockNum1($spec);
|
|---|
| 729 | $this->dataLength = $this->rsDataLength($spec);
|
|---|
| 730 | $this->eccLength = $this->rsEccLength($spec);
|
|---|
| 731 | $this->ecccode = array_fill(0, $this->eccLength, 0);
|
|---|
| 732 | $this->blocks = $this->rsBlockNum($spec);
|
|---|
| 733 | $ret = $this->init($spec);
|
|---|
| 734 | if ($ret < 0) {
|
|---|
| 735 | return NULL;
|
|---|
| 736 | }
|
|---|
| 737 | $this->count = 0;
|
|---|
| 738 | $this->width = $this->getWidth($this->version);
|
|---|
| 739 | $this->frame = $this->newFrame($this->version);
|
|---|
| 740 | $this->x = $this->width - 1;
|
|---|
| 741 | $this->y = $this->width - 1;
|
|---|
| 742 | $this->dir = -1;
|
|---|
| 743 | $this->bit = -1;
|
|---|
| 744 | // inteleaved data and ecc codes
|
|---|
| 745 | for ($i=0; $i < ($this->dataLength + $this->eccLength); $i++) {
|
|---|
| 746 | $code = $this->getCode();
|
|---|
| 747 | $bit = 0x80;
|
|---|
| 748 | for ($j=0; $j<8; $j++) {
|
|---|
| 749 | $addr = $this->getNextPosition();
|
|---|
| 750 | $this->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
|
|---|
| 751 | $bit = $bit >> 1;
|
|---|
| 752 | }
|
|---|
| 753 | }
|
|---|
| 754 | // remainder bits
|
|---|
| 755 | $j = $this->getRemainder($this->version);
|
|---|
| 756 | for ($i=0; $i<$j; $i++) {
|
|---|
| 757 | $addr = $this->getNextPosition();
|
|---|
| 758 | $this->setFrameAt($addr, 0x02);
|
|---|
| 759 | }
|
|---|
| 760 | // masking
|
|---|
| 761 | $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
|
|---|
| 762 | if ($mask < 0) {
|
|---|
| 763 | if (QR_FIND_BEST_MASK) {
|
|---|
| 764 | $masked = $this->mask($this->width, $this->frame, $this->level);
|
|---|
| 765 | } else {
|
|---|
| 766 | $masked = $this->makeMask($this->width, $this->frame, (intval(QR_DEFAULT_MASK) % 8), $this->level);
|
|---|
| 767 | }
|
|---|
| 768 | } else {
|
|---|
| 769 | $masked = $this->makeMask($this->width, $this->frame, $mask, $this->level);
|
|---|
| 770 | }
|
|---|
| 771 | if ($masked == NULL) {
|
|---|
| 772 | return NULL;
|
|---|
| 773 | }
|
|---|
| 774 | $this->data = $masked;
|
|---|
| 775 | }
|
|---|
| 776 |
|
|---|
| 777 | // - - - - - - - - - - - - - - - - - - - - - - - - -
|
|---|
| 778 |
|
|---|
| 779 | // FrameFiller
|
|---|
| 780 |
|
|---|
| 781 | /**
|
|---|
| 782 | * Set frame value at specified position
|
|---|
| 783 | * @param $at (array) x,y position
|
|---|
| 784 | * @param $val (int) value of the character to set
|
|---|
| 785 | */
|
|---|
| 786 | protected function setFrameAt($at, $val) {
|
|---|
| 787 | $this->frame[$at['y']][$at['x']] = chr($val);
|
|---|
| 788 | }
|
|---|
| 789 |
|
|---|
| 790 | /**
|
|---|
| 791 | * Get frame value at specified position
|
|---|
| 792 | * @param $at (array) x,y position
|
|---|
| 793 | * @return value at specified position
|
|---|
| 794 | */
|
|---|
| 795 | protected function getFrameAt($at) {
|
|---|
| 796 | return ord($this->frame[$at['y']][$at['x']]);
|
|---|
| 797 | }
|
|---|
| 798 |
|
|---|
| 799 | /**
|
|---|
| 800 | * Return the next frame position
|
|---|
| 801 | * @return array of x,y coordinates
|
|---|
| 802 | */
|
|---|
| 803 | protected function getNextPosition() {
|
|---|
| 804 | do {
|
|---|
| 805 | if ($this->bit == -1) {
|
|---|
| 806 | $this->bit = 0;
|
|---|
| 807 | return array('x'=>$this->x, 'y'=>$this->y);
|
|---|
| 808 | }
|
|---|
| 809 | $x = $this->x;
|
|---|
| 810 | $y = $this->y;
|
|---|
| 811 | $w = $this->width;
|
|---|
| 812 | if ($this->bit == 0) {
|
|---|
| 813 | $x--;
|
|---|
| 814 | $this->bit++;
|
|---|
| 815 | } else {
|
|---|
| 816 | $x++;
|
|---|
| 817 | $y += $this->dir;
|
|---|
| 818 | $this->bit--;
|
|---|
| 819 | }
|
|---|
| 820 | if ($this->dir < 0) {
|
|---|
| 821 | if ($y < 0) {
|
|---|
| 822 | $y = 0;
|
|---|
| 823 | $x -= 2;
|
|---|
| 824 | $this->dir = 1;
|
|---|
| 825 | if ($x == 6) {
|
|---|
| 826 | $x--;
|
|---|
| 827 | $y = 9;
|
|---|
| 828 | }
|
|---|
| 829 | }
|
|---|
| 830 | } else {
|
|---|
| 831 | if ($y == $w) {
|
|---|
| 832 | $y = $w - 1;
|
|---|
| 833 | $x -= 2;
|
|---|
| 834 | $this->dir = -1;
|
|---|
| 835 | if ($x == 6) {
|
|---|
| 836 | $x--;
|
|---|
| 837 | $y -= 8;
|
|---|
| 838 | }
|
|---|
| 839 | }
|
|---|
| 840 | }
|
|---|
| 841 | if (($x < 0) OR ($y < 0)) {
|
|---|
| 842 | return NULL;
|
|---|
| 843 | }
|
|---|
| 844 | $this->x = $x;
|
|---|
| 845 | $this->y = $y;
|
|---|
| 846 | } while(ord($this->frame[$y][$x]) & 0x80);
|
|---|
| 847 | return array('x'=>$x, 'y'=>$y);
|
|---|
| 848 | }
|
|---|
| 849 |
|
|---|
| 850 | // - - - - - - - - - - - - - - - - - - - - - - - - -
|
|---|
| 851 |
|
|---|
| 852 | // QRrawcode
|
|---|
| 853 |
|
|---|
| 854 | /**
|
|---|
| 855 | * Initialize code.
|
|---|
| 856 | * @param $spec (array) array of ECC specification
|
|---|
| 857 | * @return 0 in case of success, -1 in case of error
|
|---|
| 858 | */
|
|---|
| 859 | protected function init($spec) {
|
|---|
| 860 | $dl = $this->rsDataCodes1($spec);
|
|---|
| 861 | $el = $this->rsEccCodes1($spec);
|
|---|
| 862 | $rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
|
|---|
| 863 | $blockNo = 0;
|
|---|
| 864 | $dataPos = 0;
|
|---|
| 865 | $eccPos = 0;
|
|---|
| 866 | $endfor = $this->rsBlockNum1($spec);
|
|---|
| 867 | for ($i=0; $i < $endfor; ++$i) {
|
|---|
| 868 | $ecc = array_slice($this->ecccode, $eccPos);
|
|---|
| 869 | $this->rsblocks[$blockNo] = array();
|
|---|
| 870 | $this->rsblocks[$blockNo]['dataLength'] = $dl;
|
|---|
| 871 | $this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
|
|---|
| 872 | $this->rsblocks[$blockNo]['eccLength'] = $el;
|
|---|
| 873 | $ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
|
|---|
| 874 | $this->rsblocks[$blockNo]['ecc'] = $ecc;
|
|---|
| 875 | $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
|
|---|
| 876 | $dataPos += $dl;
|
|---|
| 877 | $eccPos += $el;
|
|---|
| 878 | $blockNo++;
|
|---|
| 879 | }
|
|---|
| 880 | if ($this->rsBlockNum2($spec) == 0) {
|
|---|
| 881 | return 0;
|
|---|
| 882 | }
|
|---|
| 883 | $dl = $this->rsDataCodes2($spec);
|
|---|
| 884 | $el = $this->rsEccCodes2($spec);
|
|---|
| 885 | $rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
|
|---|
| 886 | if ($rs == NULL) {
|
|---|
| 887 | return -1;
|
|---|
| 888 | }
|
|---|
| 889 | $endfor = $this->rsBlockNum2($spec);
|
|---|
| 890 | for ($i=0; $i < $endfor; ++$i) {
|
|---|
| 891 | $ecc = array_slice($this->ecccode, $eccPos);
|
|---|
| 892 | $this->rsblocks[$blockNo] = array();
|
|---|
| 893 | $this->rsblocks[$blockNo]['dataLength'] = $dl;
|
|---|
| 894 | $this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
|
|---|
| 895 | $this->rsblocks[$blockNo]['eccLength'] = $el;
|
|---|
| 896 | $ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
|
|---|
| 897 | $this->rsblocks[$blockNo]['ecc'] = $ecc;
|
|---|
| 898 | $this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
|
|---|
| 899 | $dataPos += $dl;
|
|---|
| 900 | $eccPos += $el;
|
|---|
| 901 | $blockNo++;
|
|---|
| 902 | }
|
|---|
| 903 | return 0;
|
|---|
| 904 | }
|
|---|
| 905 |
|
|---|
| 906 | /**
|
|---|
| 907 | * Return Reed-Solomon block code.
|
|---|
| 908 | * @return array rsblocks
|
|---|
| 909 | */
|
|---|
| 910 | protected function getCode() {
|
|---|
| 911 | if ($this->count < $this->dataLength) {
|
|---|
| 912 | $row = $this->count % $this->blocks;
|
|---|
| 913 | $col = $this->count / $this->blocks;
|
|---|
| 914 | if ($col >= $this->rsblocks[0]['dataLength']) {
|
|---|
| 915 | $row += $this->b1;
|
|---|
| 916 | }
|
|---|
| 917 | $ret = $this->rsblocks[$row]['data'][$col];
|
|---|
| 918 | } elseif ($this->count < $this->dataLength + $this->eccLength) {
|
|---|
| 919 | $row = ($this->count - $this->dataLength) % $this->blocks;
|
|---|
| 920 | $col = ($this->count - $this->dataLength) / $this->blocks;
|
|---|
| 921 | $ret = $this->rsblocks[$row]['ecc'][$col];
|
|---|
| 922 | } else {
|
|---|
| 923 | return 0;
|
|---|
| 924 | }
|
|---|
| 925 | $this->count++;
|
|---|
| 926 | return $ret;
|
|---|
| 927 | }
|
|---|
| 928 |
|
|---|
| 929 | // - - - - - - - - - - - - - - - - - - - - - - - - -
|
|---|
| 930 |
|
|---|
| 931 | // QRmask
|
|---|
| 932 |
|
|---|
| 933 | /**
|
|---|
| 934 | * Write Format Information on frame and returns the number of black bits
|
|---|
| 935 | * @param $width (int) frame width
|
|---|
| 936 | * @param $frame (array) frame
|
|---|
| 937 | * @param $mask (array) masking mode
|
|---|
| 938 | * @param $level (int) error correction level
|
|---|
| 939 | * @return int blacks
|
|---|
| 940 | */
|
|---|
| 941 | protected function writeFormatInformation($width, &$frame, $mask, $level) {
|
|---|
| 942 | $blacks = 0;
|
|---|
| 943 | $format = $this->getFormatInfo($mask, $level);
|
|---|
| 944 | for ($i=0; $i<8; ++$i) {
|
|---|
| 945 | if ($format & 1) {
|
|---|
| 946 | $blacks += 2;
|
|---|
| 947 | $v = 0x85;
|
|---|
| 948 | } else {
|
|---|
| 949 | $v = 0x84;
|
|---|
| 950 | }
|
|---|
| 951 | $frame[8][$width - 1 - $i] = chr($v);
|
|---|
| 952 | if ($i < 6) {
|
|---|
| 953 | $frame[$i][8] = chr($v);
|
|---|
| 954 | } else {
|
|---|
| 955 | $frame[$i + 1][8] = chr($v);
|
|---|
| 956 | }
|
|---|
| 957 | $format = $format >> 1;
|
|---|
| 958 | }
|
|---|
| 959 | for ($i=0; $i<7; ++$i) {
|
|---|
| 960 | if ($format & 1) {
|
|---|
| 961 | $blacks += 2;
|
|---|
| 962 | $v = 0x85;
|
|---|
| 963 | } else {
|
|---|
| 964 | $v = 0x84;
|
|---|
| 965 | }
|
|---|
| 966 | $frame[$width - 7 + $i][8] = chr($v);
|
|---|
| 967 | if ($i == 0) {
|
|---|
| 968 | $frame[8][7] = chr($v);
|
|---|
| 969 | } else {
|
|---|
| 970 | $frame[8][6 - $i] = chr($v);
|
|---|
| 971 | }
|
|---|
| 972 | $format = $format >> 1;
|
|---|
| 973 | }
|
|---|
| 974 | return $blacks;
|
|---|
| 975 | }
|
|---|
| 976 |
|
|---|
| 977 | /**
|
|---|
| 978 | * mask0
|
|---|
| 979 | * @param $x (int) X position
|
|---|
| 980 | * @param $y (int) Y position
|
|---|
| 981 | * @return int mask
|
|---|
| 982 | */
|
|---|
| 983 | protected function mask0($x, $y) {
|
|---|
| 984 | return ($x + $y) & 1;
|
|---|
| 985 | }
|
|---|
| 986 |
|
|---|
| 987 | /**
|
|---|
| 988 | * mask1
|
|---|
| 989 | * @param $x (int) X position
|
|---|
| 990 | * @param $y (int) Y position
|
|---|
| 991 | * @return int mask
|
|---|
| 992 | */
|
|---|
| 993 | protected function mask1($x, $y) {
|
|---|
| 994 | return ($y & 1);
|
|---|
| 995 | }
|
|---|
| 996 |
|
|---|
| 997 | /**
|
|---|
| 998 | * mask2
|
|---|
| 999 | * @param $x (int) X position
|
|---|
| 1000 | * @param $y (int) Y position
|
|---|
| 1001 | * @return int mask
|
|---|
| 1002 | */
|
|---|
| 1003 | protected function mask2($x, $y) {
|
|---|
| 1004 | return ($x % 3);
|
|---|
| 1005 | }
|
|---|
| 1006 |
|
|---|
| 1007 | /**
|
|---|
| 1008 | * mask3
|
|---|
| 1009 | * @param $x (int) X position
|
|---|
| 1010 | * @param $y (int) Y position
|
|---|
| 1011 | * @return int mask
|
|---|
| 1012 | */
|
|---|
| 1013 | protected function mask3($x, $y) {
|
|---|
| 1014 | return ($x + $y) % 3;
|
|---|
| 1015 | }
|
|---|
| 1016 |
|
|---|
| 1017 | /**
|
|---|
| 1018 | * mask4
|
|---|
| 1019 | * @param $x (int) X position
|
|---|
| 1020 | * @param $y (int) Y position
|
|---|
| 1021 | * @return int mask
|
|---|
| 1022 | */
|
|---|
| 1023 | protected function mask4($x, $y) {
|
|---|
| 1024 | return (((int)($y / 2)) + ((int)($x / 3))) & 1;
|
|---|
| 1025 | }
|
|---|
| 1026 |
|
|---|
| 1027 | /**
|
|---|
| 1028 | * mask5
|
|---|
| 1029 | * @param $x (int) X position
|
|---|
| 1030 | * @param $y (int) Y position
|
|---|
| 1031 | * @return int mask
|
|---|
| 1032 | */
|
|---|
| 1033 | protected function mask5($x, $y) {
|
|---|
| 1034 | return (($x * $y) & 1) + ($x * $y) % 3;
|
|---|
| 1035 | }
|
|---|
| 1036 |
|
|---|
| 1037 | /**
|
|---|
| 1038 | * mask6
|
|---|
| 1039 | * @param $x (int) X position
|
|---|
| 1040 | * @param $y (int) Y position
|
|---|
| 1041 | * @return int mask
|
|---|
| 1042 | */
|
|---|
| 1043 | protected function mask6($x, $y) {
|
|---|
| 1044 | return ((($x * $y) & 1) + ($x * $y) % 3) & 1;
|
|---|
| 1045 | }
|
|---|
| 1046 |
|
|---|
| 1047 | /**
|
|---|
| 1048 | * mask7
|
|---|
| 1049 | * @param $x (int) X position
|
|---|
| 1050 | * @param $y (int) Y position
|
|---|
| 1051 | * @return int mask
|
|---|
| 1052 | */
|
|---|
| 1053 | protected function mask7($x, $y) {
|
|---|
| 1054 | return ((($x * $y) % 3) + (($x + $y) & 1)) & 1;
|
|---|
| 1055 | }
|
|---|
| 1056 |
|
|---|
| 1057 | /**
|
|---|
| 1058 | * Return bitmask
|
|---|
| 1059 | * @param $maskNo (int) mask number
|
|---|
| 1060 | * @param $width (int) width
|
|---|
| 1061 | * @param $frame (array) frame
|
|---|
| 1062 | * @return array bitmask
|
|---|
| 1063 | */
|
|---|
| 1064 | protected function generateMaskNo($maskNo, $width, $frame) {
|
|---|
| 1065 | $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
|
|---|
| 1066 | for ($y=0; $y<$width; ++$y) {
|
|---|
| 1067 | for ($x=0; $x<$width; ++$x) {
|
|---|
| 1068 | if (ord($frame[$y][$x]) & 0x80) {
|
|---|
| 1069 | $bitMask[$y][$x] = 0;
|
|---|
| 1070 | } else {
|
|---|
| 1071 | $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
|
|---|
| 1072 | $bitMask[$y][$x] = ($maskFunc == 0)?1:0;
|
|---|
| 1073 | }
|
|---|
| 1074 | }
|
|---|
| 1075 | }
|
|---|
| 1076 | return $bitMask;
|
|---|
| 1077 | }
|
|---|
| 1078 |
|
|---|
| 1079 | /**
|
|---|
| 1080 | * makeMaskNo
|
|---|
| 1081 | * @param $maskNo (int)
|
|---|
| 1082 | * @param $width (int)
|
|---|
| 1083 | * @param $s (int)
|
|---|
| 1084 | * @param $d (int)
|
|---|
| 1085 | * @param $maskGenOnly (boolean)
|
|---|
| 1086 | * @return int b
|
|---|
| 1087 | */
|
|---|
| 1088 | protected function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly=false) {
|
|---|
| 1089 | $b = 0;
|
|---|
| 1090 | $bitMask = array();
|
|---|
| 1091 | $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
|
|---|
| 1092 | if ($maskGenOnly) {
|
|---|
| 1093 | return;
|
|---|
| 1094 | }
|
|---|
| 1095 | $d = $s;
|
|---|
| 1096 | for ($y=0; $y<$width; ++$y) {
|
|---|
| 1097 | for ($x=0; $x<$width; ++$x) {
|
|---|
| 1098 | if ($bitMask[$y][$x] == 1) {
|
|---|
| 1099 | $d[$y][$x] = chr(ord($s[$y][$x]) ^ ((int)($bitMask[$y][$x])));
|
|---|
| 1100 | }
|
|---|
| 1101 | $b += (int)(ord($d[$y][$x]) & 1);
|
|---|
| 1102 | }
|
|---|
| 1103 | }
|
|---|
| 1104 | return $b;
|
|---|
| 1105 | }
|
|---|
| 1106 |
|
|---|
| 1107 | /**
|
|---|
| 1108 | * makeMask
|
|---|
| 1109 | * @param $width (int)
|
|---|
| 1110 | * @param $frame (array)
|
|---|
| 1111 | * @param $maskNo (int)
|
|---|
| 1112 | * @param $level (int)
|
|---|
| 1113 | * @return array mask
|
|---|
| 1114 | */
|
|---|
| 1115 | protected function makeMask($width, $frame, $maskNo, $level) {
|
|---|
| 1116 | $masked = array_fill(0, $width, str_repeat("\0", $width));
|
|---|
| 1117 | $this->makeMaskNo($maskNo, $width, $frame, $masked);
|
|---|
| 1118 | $this->writeFormatInformation($width, $masked, $maskNo, $level);
|
|---|
| 1119 | return $masked;
|
|---|
| 1120 | }
|
|---|
| 1121 |
|
|---|
| 1122 | /**
|
|---|
| 1123 | * calcN1N3
|
|---|
| 1124 | * @param $length (int)
|
|---|
| 1125 | * @return int demerit
|
|---|
| 1126 | */
|
|---|
| 1127 | protected function calcN1N3($length) {
|
|---|
| 1128 | $demerit = 0;
|
|---|
| 1129 | for ($i=0; $i<$length; ++$i) {
|
|---|
| 1130 | if ($this->runLength[$i] >= 5) {
|
|---|
| 1131 | $demerit += (N1 + ($this->runLength[$i] - 5));
|
|---|
| 1132 | }
|
|---|
| 1133 | if ($i & 1) {
|
|---|
| 1134 | if (($i >= 3) AND ($i < ($length-2)) AND ($this->runLength[$i] % 3 == 0)) {
|
|---|
| 1135 | $fact = (int)($this->runLength[$i] / 3);
|
|---|
| 1136 | if (($this->runLength[$i-2] == $fact)
|
|---|
| 1137 | AND ($this->runLength[$i-1] == $fact)
|
|---|
| 1138 | AND ($this->runLength[$i+1] == $fact)
|
|---|
| 1139 | AND ($this->runLength[$i+2] == $fact)) {
|
|---|
| 1140 | if (($this->runLength[$i-3] < 0) OR ($this->runLength[$i-3] >= (4 * $fact))) {
|
|---|
| 1141 | $demerit += N3;
|
|---|
| 1142 | } elseif ((($i+3) >= $length) OR ($this->runLength[$i+3] >= (4 * $fact))) {
|
|---|
| 1143 | $demerit += N3;
|
|---|
| 1144 | }
|
|---|
| 1145 | }
|
|---|
| 1146 | }
|
|---|
| 1147 | }
|
|---|
| 1148 | }
|
|---|
| 1149 | return $demerit;
|
|---|
| 1150 | }
|
|---|
| 1151 |
|
|---|
| 1152 | /**
|
|---|
| 1153 | * evaluateSymbol
|
|---|
| 1154 | * @param $width (int)
|
|---|
| 1155 | * @param $frame (array)
|
|---|
| 1156 | * @return int demerit
|
|---|
| 1157 | */
|
|---|
| 1158 | protected function evaluateSymbol($width, $frame) {
|
|---|
| 1159 | $head = 0;
|
|---|
| 1160 | $demerit = 0;
|
|---|
| 1161 | for ($y=0; $y<$width; ++$y) {
|
|---|
| 1162 | $head = 0;
|
|---|
| 1163 | $this->runLength[0] = 1;
|
|---|
| 1164 | $frameY = $frame[$y];
|
|---|
| 1165 | if ($y > 0) {
|
|---|
| 1166 | $frameYM = $frame[$y-1];
|
|---|
| 1167 | }
|
|---|
| 1168 | for ($x=0; $x<$width; ++$x) {
|
|---|
| 1169 | if (($x > 0) AND ($y > 0)) {
|
|---|
| 1170 | $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
|
|---|
| 1171 | $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
|
|---|
| 1172 | if (($b22 | ($w22 ^ 1)) & 1) {
|
|---|
| 1173 | $demerit += N2;
|
|---|
| 1174 | }
|
|---|
| 1175 | }
|
|---|
| 1176 | if (($x == 0) AND (ord($frameY[$x]) & 1)) {
|
|---|
| 1177 | $this->runLength[0] = -1;
|
|---|
| 1178 | $head = 1;
|
|---|
| 1179 | $this->runLength[$head] = 1;
|
|---|
| 1180 | } elseif ($x > 0) {
|
|---|
| 1181 | if ((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
|
|---|
| 1182 | $head++;
|
|---|
| 1183 | $this->runLength[$head] = 1;
|
|---|
| 1184 | } else {
|
|---|
| 1185 | $this->runLength[$head]++;
|
|---|
| 1186 | }
|
|---|
| 1187 | }
|
|---|
| 1188 | }
|
|---|
| 1189 | $demerit += $this->calcN1N3($head+1);
|
|---|
| 1190 | }
|
|---|
| 1191 | for ($x=0; $x<$width; ++$x) {
|
|---|
| 1192 | $head = 0;
|
|---|
| 1193 | $this->runLength[0] = 1;
|
|---|
| 1194 | for ($y=0; $y<$width; ++$y) {
|
|---|
| 1195 | if (($y == 0) AND (ord($frame[$y][$x]) & 1)) {
|
|---|
| 1196 | $this->runLength[0] = -1;
|
|---|
| 1197 | $head = 1;
|
|---|
| 1198 | $this->runLength[$head] = 1;
|
|---|
| 1199 | } elseif ($y > 0) {
|
|---|
| 1200 | if ((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
|
|---|
| 1201 | $head++;
|
|---|
| 1202 | $this->runLength[$head] = 1;
|
|---|
| 1203 | } else {
|
|---|
| 1204 | $this->runLength[$head]++;
|
|---|
| 1205 | }
|
|---|
| 1206 | }
|
|---|
| 1207 | }
|
|---|
| 1208 | $demerit += $this->calcN1N3($head+1);
|
|---|
| 1209 | }
|
|---|
| 1210 | return $demerit;
|
|---|
| 1211 | }
|
|---|
| 1212 |
|
|---|
| 1213 | /**
|
|---|
| 1214 | * mask
|
|---|
| 1215 | * @param $width (int)
|
|---|
| 1216 | * @param $frame (array)
|
|---|
| 1217 | * @param $level (int)
|
|---|
| 1218 | * @return array best mask
|
|---|
| 1219 | */
|
|---|
| 1220 | protected function mask($width, $frame, $level) {
|
|---|
| 1221 | $minDemerit = PHP_INT_MAX;
|
|---|
| 1222 | $bestMaskNum = 0;
|
|---|
| 1223 | $bestMask = array();
|
|---|
| 1224 | $checked_masks = array(0, 1, 2, 3, 4, 5, 6, 7);
|
|---|
| 1225 | if (QR_FIND_FROM_RANDOM !== false) {
|
|---|
| 1226 | $howManuOut = 8 - (QR_FIND_FROM_RANDOM % 9);
|
|---|
| 1227 | for ($i = 0; $i < $howManuOut; ++$i) {
|
|---|
| 1228 | $remPos = rand (0, count($checked_masks)-1);
|
|---|
| 1229 | unset($checked_masks[$remPos]);
|
|---|
| 1230 | $checked_masks = array_values($checked_masks);
|
|---|
| 1231 | }
|
|---|
| 1232 | }
|
|---|
| 1233 | $bestMask = $frame;
|
|---|
| 1234 | foreach ($checked_masks as $i) {
|
|---|
| 1235 | $mask = array_fill(0, $width, str_repeat("\0", $width));
|
|---|
| 1236 | $demerit = 0;
|
|---|
| 1237 | $blacks = 0;
|
|---|
| 1238 | $blacks = $this->makeMaskNo($i, $width, $frame, $mask);
|
|---|
| 1239 | $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
|
|---|
| 1240 | $blacks = (int)(100 * $blacks / ($width * $width));
|
|---|
| 1241 | $demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
|
|---|
| 1242 | $demerit += $this->evaluateSymbol($width, $mask);
|
|---|
| 1243 | if ($demerit < $minDemerit) {
|
|---|
| 1244 | $minDemerit = $demerit;
|
|---|
| 1245 | $bestMask = $mask;
|
|---|
| 1246 | $bestMaskNum = $i;
|
|---|
| 1247 | }
|
|---|
| 1248 | }
|
|---|
| 1249 | return $bestMask;
|
|---|
| 1250 | }
|
|---|
| 1251 |
|
|---|
| 1252 | // - - - - - - - - - - - - - - - - - - - - - - - - -
|
|---|
| 1253 |
|
|---|
| 1254 | // QRsplit
|
|---|
| 1255 |
|
|---|
| 1256 | /**
|
|---|
| 1257 | * Return true if the character at specified position is a number
|
|---|
| 1258 | * @param $str (string) string
|
|---|
| 1259 | * @param $pos (int) characted position
|
|---|
| 1260 | * @return boolean true of false
|
|---|
| 1261 | */
|
|---|
| 1262 | protected function isdigitat($str, $pos) {
|
|---|
| 1263 | if ($pos >= strlen($str)) {
|
|---|
| 1264 | return false;
|
|---|
| 1265 | }
|
|---|
| 1266 | return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
|
|---|
| 1267 | }
|
|---|
| 1268 |
|
|---|
| 1269 | /**
|
|---|
| 1270 | * Return true if the character at specified position is an alphanumeric character
|
|---|
| 1271 | * @param $str (string) string
|
|---|
| 1272 | * @param $pos (int) characted position
|
|---|
| 1273 | * @return boolean true of false
|
|---|
| 1274 | */
|
|---|
| 1275 | protected function isalnumat($str, $pos) {
|
|---|
| 1276 | if ($pos >= strlen($str)) {
|
|---|
| 1277 | return false;
|
|---|
| 1278 | }
|
|---|
| 1279 | return ($this->lookAnTable(ord($str[$pos])) >= 0);
|
|---|
| 1280 | }
|
|---|
| 1281 |
|
|---|
| 1282 | /**
|
|---|
| 1283 | * identifyMode
|
|---|
| 1284 | * @param $pos (int)
|
|---|
| 1285 | * @return int mode
|
|---|
| 1286 | */
|
|---|
| 1287 | protected function identifyMode($pos) {
|
|---|
| 1288 | if ($pos >= strlen($this->dataStr)) {
|
|---|
| 1289 | return QR_MODE_NL;
|
|---|
| 1290 | }
|
|---|
| 1291 | $c = $this->dataStr[$pos];
|
|---|
| 1292 | if ($this->isdigitat($this->dataStr, $pos)) {
|
|---|
| 1293 | return QR_MODE_NM;
|
|---|
| 1294 | } elseif ($this->isalnumat($this->dataStr, $pos)) {
|
|---|
| 1295 | return QR_MODE_AN;
|
|---|
| 1296 | } elseif ($this->hint == QR_MODE_KJ) {
|
|---|
| 1297 | if ($pos+1 < strlen($this->dataStr)) {
|
|---|
| 1298 | $d = $this->dataStr[$pos+1];
|
|---|
| 1299 | $word = (ord($c) << 8) | ord($d);
|
|---|
| 1300 | if (($word >= 0x8140 && $word <= 0x9ffc) OR ($word >= 0xe040 && $word <= 0xebbf)) {
|
|---|
| 1301 | return QR_MODE_KJ;
|
|---|
| 1302 | }
|
|---|
| 1303 | }
|
|---|
| 1304 | }
|
|---|
| 1305 | return QR_MODE_8B;
|
|---|
| 1306 | }
|
|---|
| 1307 |
|
|---|
| 1308 | /**
|
|---|
| 1309 | * eatNum
|
|---|
| 1310 | * @return int run
|
|---|
| 1311 | */
|
|---|
| 1312 | protected function eatNum() {
|
|---|
| 1313 | $ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
|
|---|
| 1314 | $p = 0;
|
|---|
| 1315 | while($this->isdigitat($this->dataStr, $p)) {
|
|---|
| 1316 | $p++;
|
|---|
| 1317 | }
|
|---|
| 1318 | $run = $p;
|
|---|
| 1319 | $mode = $this->identifyMode($p);
|
|---|
| 1320 | if ($mode == QR_MODE_8B) {
|
|---|
| 1321 | $dif = $this->estimateBitsModeNum($run) + 4 + $ln
|
|---|
| 1322 | + $this->estimateBitsMode8(1) // + 4 + l8
|
|---|
| 1323 | - $this->estimateBitsMode8($run + 1); // - 4 - l8
|
|---|
| 1324 | if ($dif > 0) {
|
|---|
| 1325 | return $this->eat8();
|
|---|
| 1326 | }
|
|---|
| 1327 | }
|
|---|
| 1328 | if ($mode == QR_MODE_AN) {
|
|---|
| 1329 | $dif = $this->estimateBitsModeNum($run) + 4 + $ln
|
|---|
| 1330 | + $this->estimateBitsModeAn(1) // + 4 + la
|
|---|
| 1331 | - $this->estimateBitsModeAn($run + 1);// - 4 - la
|
|---|
| 1332 | if ($dif > 0) {
|
|---|
| 1333 | return $this->eatAn();
|
|---|
| 1334 | }
|
|---|
| 1335 | }
|
|---|
| 1336 | $this->items = $this->appendNewInputItem($this->items, QR_MODE_NM, $run, str_split($this->dataStr));
|
|---|
| 1337 | return $run;
|
|---|
| 1338 | }
|
|---|
| 1339 |
|
|---|
| 1340 | /**
|
|---|
| 1341 | * eatAn
|
|---|
| 1342 | * @return int run
|
|---|
| 1343 | */
|
|---|
| 1344 | protected function eatAn() {
|
|---|
| 1345 | $la = $this->lengthIndicator(QR_MODE_AN, $this->version);
|
|---|
| 1346 | $ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
|
|---|
| 1347 | $p =1 ;
|
|---|
| 1348 | while($this->isalnumat($this->dataStr, $p)) {
|
|---|
| 1349 | if ($this->isdigitat($this->dataStr, $p)) {
|
|---|
| 1350 | $q = $p;
|
|---|
| 1351 | while($this->isdigitat($this->dataStr, $q)) {
|
|---|
| 1352 | $q++;
|
|---|
| 1353 | }
|
|---|
| 1354 | $dif = $this->estimateBitsModeAn($p) // + 4 + la
|
|---|
| 1355 | + $this->estimateBitsModeNum($q - $p) + 4 + $ln
|
|---|
| 1356 | - $this->estimateBitsModeAn($q); // - 4 - la
|
|---|
| 1357 | if ($dif < 0) {
|
|---|
| 1358 | break;
|
|---|
| 1359 | } else {
|
|---|
| 1360 | $p = $q;
|
|---|
| 1361 | }
|
|---|
| 1362 | } else {
|
|---|
| 1363 | $p++;
|
|---|
| 1364 | }
|
|---|
| 1365 | }
|
|---|
| 1366 | $run = $p;
|
|---|
| 1367 | if (!$this->isalnumat($this->dataStr, $p)) {
|
|---|
| 1368 | $dif = $this->estimateBitsModeAn($run) + 4 + $la
|
|---|
| 1369 | + $this->estimateBitsMode8(1) // + 4 + l8
|
|---|
| 1370 | - $this->estimateBitsMode8($run + 1); // - 4 - l8
|
|---|
| 1371 | if ($dif > 0) {
|
|---|
| 1372 | return $this->eat8();
|
|---|
| 1373 | }
|
|---|
| 1374 | }
|
|---|
| 1375 | $this->items = $this->appendNewInputItem($this->items, QR_MODE_AN, $run, str_split($this->dataStr));
|
|---|
| 1376 | return $run;
|
|---|
| 1377 | }
|
|---|
| 1378 |
|
|---|
| 1379 | /**
|
|---|
| 1380 | * eatKanji
|
|---|
| 1381 | * @return int run
|
|---|
| 1382 | */
|
|---|
| 1383 | protected function eatKanji() {
|
|---|
| 1384 | $p = 0;
|
|---|
| 1385 | while($this->identifyMode($p) == QR_MODE_KJ) {
|
|---|
| 1386 | $p += 2;
|
|---|
| 1387 | }
|
|---|
| 1388 | $this->items = $this->appendNewInputItem($this->items, QR_MODE_KJ, $p, str_split($this->dataStr));
|
|---|
| 1389 | $run = $p;
|
|---|
| 1390 | return $run;
|
|---|
| 1391 | }
|
|---|
| 1392 |
|
|---|
| 1393 | /**
|
|---|
| 1394 | * eat8
|
|---|
| 1395 | * @return int run
|
|---|
| 1396 | */
|
|---|
| 1397 | protected function eat8() {
|
|---|
| 1398 | $la = $this->lengthIndicator(QR_MODE_AN, $this->version);
|
|---|
| 1399 | $ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
|
|---|
| 1400 | $p = 1;
|
|---|
| 1401 | $dataStrLen = strlen($this->dataStr);
|
|---|
| 1402 | while($p < $dataStrLen) {
|
|---|
| 1403 | $mode = $this->identifyMode($p);
|
|---|
| 1404 | if ($mode == QR_MODE_KJ) {
|
|---|
| 1405 | break;
|
|---|
| 1406 | }
|
|---|
| 1407 | if ($mode == QR_MODE_NM) {
|
|---|
| 1408 | $q = $p;
|
|---|
| 1409 | while($this->isdigitat($this->dataStr, $q)) {
|
|---|
| 1410 | $q++;
|
|---|
| 1411 | }
|
|---|
| 1412 | $dif = $this->estimateBitsMode8($p) // + 4 + l8
|
|---|
| 1413 | + $this->estimateBitsModeNum($q - $p) + 4 + $ln
|
|---|
| 1414 | - $this->estimateBitsMode8($q); // - 4 - l8
|
|---|
| 1415 | if ($dif < 0) {
|
|---|
| 1416 | break;
|
|---|
| 1417 | } else {
|
|---|
| 1418 | $p = $q;
|
|---|
| 1419 | }
|
|---|
| 1420 | } elseif ($mode == QR_MODE_AN) {
|
|---|
| 1421 | $q = $p;
|
|---|
| 1422 | while($this->isalnumat($this->dataStr, $q)) {
|
|---|
| 1423 | $q++;
|
|---|
| 1424 | }
|
|---|
| 1425 | $dif = $this->estimateBitsMode8($p) // + 4 + l8
|
|---|
| 1426 | + $this->estimateBitsModeAn($q - $p) + 4 + $la
|
|---|
| 1427 | - $this->estimateBitsMode8($q); // - 4 - l8
|
|---|
| 1428 | if ($dif < 0) {
|
|---|
| 1429 | break;
|
|---|
| 1430 | } else {
|
|---|
| 1431 | $p = $q;
|
|---|
| 1432 | }
|
|---|
| 1433 | } else {
|
|---|
| 1434 | $p++;
|
|---|
| 1435 | }
|
|---|
| 1436 | }
|
|---|
| 1437 | $run = $p;
|
|---|
| 1438 | $this->items = $this->appendNewInputItem($this->items, QR_MODE_8B, $run, str_split($this->dataStr));
|
|---|
| 1439 | return $run;
|
|---|
| 1440 | }
|
|---|
| 1441 |
|
|---|
| 1442 | /**
|
|---|
| 1443 | * splitString
|
|---|
| 1444 | * @return (int)
|
|---|
| 1445 | */
|
|---|
| 1446 | protected function splitString() {
|
|---|
| 1447 | while (strlen($this->dataStr) > 0) {
|
|---|
| 1448 | $mode = $this->identifyMode(0);
|
|---|
| 1449 | switch ($mode) {
|
|---|
| 1450 | case QR_MODE_NM: {
|
|---|
| 1451 | $length = $this->eatNum();
|
|---|
| 1452 | break;
|
|---|
| 1453 | }
|
|---|
| 1454 | case QR_MODE_AN: {
|
|---|
| 1455 | $length = $this->eatAn();
|
|---|
| 1456 | break;
|
|---|
| 1457 | }
|
|---|
| 1458 | case QR_MODE_KJ: {
|
|---|
| 1459 | if ($this->hint == QR_MODE_KJ) {
|
|---|
| 1460 | $length = $this->eatKanji();
|
|---|
| 1461 | } else {
|
|---|
| 1462 | $length = $this->eat8();
|
|---|
| 1463 | }
|
|---|
| 1464 | break;
|
|---|
| 1465 | }
|
|---|
| 1466 | default: {
|
|---|
| 1467 | $length = $this->eat8();
|
|---|
| 1468 | break;
|
|---|
| 1469 | }
|
|---|
| 1470 | }
|
|---|
| 1471 | if ($length == 0) {
|
|---|
| 1472 | return 0;
|
|---|
| 1473 | }
|
|---|
| 1474 | if ($length < 0) {
|
|---|
| 1475 | return -1;
|
|---|
| 1476 | }
|
|---|
| 1477 | $this->dataStr = substr($this->dataStr, $length);
|
|---|
| 1478 | }
|
|---|
| 1479 | return 0;
|
|---|
| 1480 | }
|
|---|
| 1481 |
|
|---|
| 1482 | /**
|
|---|
| 1483 | * toUpper
|
|---|
| 1484 | */
|
|---|
| 1485 | protected function toUpper() {
|
|---|
| 1486 | $stringLen = strlen($this->dataStr);
|
|---|
| 1487 | $p = 0;
|
|---|
| 1488 | while ($p < $stringLen) {
|
|---|
| 1489 | $mode = $this->identifyMode(substr($this->dataStr, $p), $this->hint);
|
|---|
| 1490 | if ($mode == QR_MODE_KJ) {
|
|---|
| 1491 | $p += 2;
|
|---|
| 1492 | } else {
|
|---|
| 1493 | if ((ord($this->dataStr[$p]) >= ord('a')) AND (ord($this->dataStr[$p]) <= ord('z'))) {
|
|---|
| 1494 | $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
|
|---|
| 1495 | }
|
|---|
| 1496 | $p++;
|
|---|
| 1497 | }
|
|---|
| 1498 | }
|
|---|
| 1499 | return $this->dataStr;
|
|---|
| 1500 | }
|
|---|
| 1501 |
|
|---|
| 1502 | // - - - - - - - - - - - - - - - - - - - - - - - - -
|
|---|
| 1503 |
|
|---|
| 1504 | // QRinputItem
|
|---|
| 1505 |
|
|---|
| 1506 | /**
|
|---|
| 1507 | * newInputItem
|
|---|
| 1508 | * @param $mode (int)
|
|---|
| 1509 | * @param $size (int)
|
|---|
| 1510 | * @param $data (array)
|
|---|
| 1511 | * @param $bstream (array)
|
|---|
| 1512 | * @return array input item
|
|---|
| 1513 | */
|
|---|
| 1514 | protected function newInputItem($mode, $size, $data, $bstream=null) {
|
|---|
| 1515 | $setData = array_slice($data, 0, $size);
|
|---|
| 1516 | if (count($setData) < $size) {
|
|---|
| 1517 | $setData = array_merge($setData, array_fill(0, ($size - count($setData)), 0));
|
|---|
| 1518 | }
|
|---|
| 1519 | if (!$this->check($mode, $size, $setData)) {
|
|---|
| 1520 | return NULL;
|
|---|
| 1521 | }
|
|---|
| 1522 | $inputitem = array();
|
|---|
| 1523 | $inputitem['mode'] = $mode;
|
|---|
| 1524 | $inputitem['size'] = $size;
|
|---|
| 1525 | $inputitem['data'] = $setData;
|
|---|
| 1526 | $inputitem['bstream'] = $bstream;
|
|---|
| 1527 | return $inputitem;
|
|---|
| 1528 | }
|
|---|
| 1529 |
|
|---|
| 1530 | /**
|
|---|
| 1531 | * encodeModeNum
|
|---|
| 1532 | * @param $inputitem (array)
|
|---|
| 1533 | * @param $version (int)
|
|---|
| 1534 | * @return array input item
|
|---|
| 1535 | */
|
|---|
| 1536 | protected function encodeModeNum($inputitem, $version) {
|
|---|
| 1537 | $words = (int)($inputitem['size'] / 3);
|
|---|
| 1538 | $inputitem['bstream'] = array();
|
|---|
| 1539 | $val = 0x1;
|
|---|
| 1540 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
|
|---|
| 1541 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_NM, $version), $inputitem['size']);
|
|---|
| 1542 | for ($i=0; $i < $words; ++$i) {
|
|---|
| 1543 | $val = (ord($inputitem['data'][$i*3 ]) - ord('0')) * 100;
|
|---|
| 1544 | $val += (ord($inputitem['data'][$i*3+1]) - ord('0')) * 10;
|
|---|
| 1545 | $val += (ord($inputitem['data'][$i*3+2]) - ord('0'));
|
|---|
| 1546 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 10, $val);
|
|---|
| 1547 | }
|
|---|
| 1548 | if ($inputitem['size'] - $words * 3 == 1) {
|
|---|
| 1549 | $val = ord($inputitem['data'][$words*3]) - ord('0');
|
|---|
| 1550 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
|
|---|
| 1551 | } elseif (($inputitem['size'] - ($words * 3)) == 2) {
|
|---|
| 1552 | $val = (ord($inputitem['data'][$words*3 ]) - ord('0')) * 10;
|
|---|
| 1553 | $val += (ord($inputitem['data'][$words*3+1]) - ord('0'));
|
|---|
| 1554 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 7, $val);
|
|---|
| 1555 | }
|
|---|
| 1556 | return $inputitem;
|
|---|
| 1557 | }
|
|---|
| 1558 |
|
|---|
| 1559 | /**
|
|---|
| 1560 | * encodeModeAn
|
|---|
| 1561 | * @param $inputitem (array)
|
|---|
| 1562 | * @param $version (int)
|
|---|
| 1563 | * @return array input item
|
|---|
| 1564 | */
|
|---|
| 1565 | protected function encodeModeAn($inputitem, $version) {
|
|---|
| 1566 | $words = (int)($inputitem['size'] / 2);
|
|---|
| 1567 | $inputitem['bstream'] = array();
|
|---|
| 1568 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x02);
|
|---|
| 1569 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_AN, $version), $inputitem['size']);
|
|---|
| 1570 | for ($i=0; $i < $words; ++$i) {
|
|---|
| 1571 | $val = (int)($this->lookAnTable(ord($inputitem['data'][$i*2])) * 45);
|
|---|
| 1572 | $val += (int)($this->lookAnTable(ord($inputitem['data'][($i*2)+1])));
|
|---|
| 1573 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 11, $val);
|
|---|
| 1574 | }
|
|---|
| 1575 | if ($inputitem['size'] & 1) {
|
|---|
| 1576 | $val = $this->lookAnTable(ord($inputitem['data'][($words * 2)]));
|
|---|
| 1577 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 6, $val);
|
|---|
| 1578 | }
|
|---|
| 1579 | return $inputitem;
|
|---|
| 1580 | }
|
|---|
| 1581 |
|
|---|
| 1582 | /**
|
|---|
| 1583 | * encodeMode8
|
|---|
| 1584 | * @param $inputitem (array)
|
|---|
| 1585 | * @param $version (int)
|
|---|
| 1586 | * @return array input item
|
|---|
| 1587 | */
|
|---|
| 1588 | protected function encodeMode8($inputitem, $version) {
|
|---|
| 1589 | $inputitem['bstream'] = array();
|
|---|
| 1590 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x4);
|
|---|
| 1591 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_8B, $version), $inputitem['size']);
|
|---|
| 1592 | for ($i=0; $i < $inputitem['size']; ++$i) {
|
|---|
| 1593 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][$i]));
|
|---|
| 1594 | }
|
|---|
| 1595 | return $inputitem;
|
|---|
| 1596 | }
|
|---|
| 1597 |
|
|---|
| 1598 | /**
|
|---|
| 1599 | * encodeModeKanji
|
|---|
| 1600 | * @param $inputitem (array)
|
|---|
| 1601 | * @param $version (int)
|
|---|
| 1602 | * @return array input item
|
|---|
| 1603 | */
|
|---|
| 1604 | protected function encodeModeKanji($inputitem, $version) {
|
|---|
| 1605 | $inputitem['bstream'] = array();
|
|---|
| 1606 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x8);
|
|---|
| 1607 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_KJ, $version), (int)($inputitem['size'] / 2));
|
|---|
| 1608 | for ($i=0; $i<$inputitem['size']; $i+=2) {
|
|---|
| 1609 | $val = (ord($inputitem['data'][$i]) << 8) | ord($inputitem['data'][$i+1]);
|
|---|
| 1610 | if ($val <= 0x9ffc) {
|
|---|
| 1611 | $val -= 0x8140;
|
|---|
| 1612 | } else {
|
|---|
| 1613 | $val -= 0xc140;
|
|---|
| 1614 | }
|
|---|
| 1615 | $h = ($val >> 8) * 0xc0;
|
|---|
| 1616 | $val = ($val & 0xff) + $h;
|
|---|
| 1617 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 13, $val);
|
|---|
| 1618 | }
|
|---|
| 1619 | return $inputitem;
|
|---|
| 1620 | }
|
|---|
| 1621 |
|
|---|
| 1622 | /**
|
|---|
| 1623 | * encodeModeStructure
|
|---|
| 1624 | * @param $inputitem (array)
|
|---|
| 1625 | * @return array input item
|
|---|
| 1626 | */
|
|---|
| 1627 | protected function encodeModeStructure($inputitem) {
|
|---|
| 1628 | $inputitem['bstream'] = array();
|
|---|
| 1629 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x03);
|
|---|
| 1630 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][1]) - 1);
|
|---|
| 1631 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][0]) - 1);
|
|---|
| 1632 | $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][2]));
|
|---|
| 1633 | return $inputitem;
|
|---|
| 1634 | }
|
|---|
| 1635 |
|
|---|
| 1636 | /**
|
|---|
| 1637 | * encodeBitStream
|
|---|
| 1638 | * @param $inputitem (array)
|
|---|
| 1639 | * @param $version (int)
|
|---|
| 1640 | * @return array input item
|
|---|
| 1641 | */
|
|---|
| 1642 | protected function encodeBitStream($inputitem, $version) {
|
|---|
| 1643 | $inputitem['bstream'] = array();
|
|---|
| 1644 | $words = $this->maximumWords($inputitem['mode'], $version);
|
|---|
| 1645 | if ($inputitem['size'] > $words) {
|
|---|
| 1646 | $st1 = $this->newInputItem($inputitem['mode'], $words, $inputitem['data']);
|
|---|
| 1647 | $st2 = $this->newInputItem($inputitem['mode'], $inputitem['size'] - $words, array_slice($inputitem['data'], $words));
|
|---|
| 1648 | $st1 = $this->encodeBitStream($st1, $version);
|
|---|
| 1649 | $st2 = $this->encodeBitStream($st2, $version);
|
|---|
| 1650 | $inputitem['bstream'] = array();
|
|---|
| 1651 | $inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st1['bstream']);
|
|---|
| 1652 | $inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st2['bstream']);
|
|---|
| 1653 | } else {
|
|---|
| 1654 | switch($inputitem['mode']) {
|
|---|
| 1655 | case QR_MODE_NM: {
|
|---|
| 1656 | $inputitem = $this->encodeModeNum($inputitem, $version);
|
|---|
| 1657 | break;
|
|---|
| 1658 | }
|
|---|
| 1659 | case QR_MODE_AN: {
|
|---|
| 1660 | $inputitem = $this->encodeModeAn($inputitem, $version);
|
|---|
| 1661 | break;
|
|---|
| 1662 | }
|
|---|
| 1663 | case QR_MODE_8B: {
|
|---|
| 1664 | $inputitem = $this->encodeMode8($inputitem, $version);
|
|---|
| 1665 | break;
|
|---|
| 1666 | }
|
|---|
| 1667 | case QR_MODE_KJ: {
|
|---|
| 1668 | $inputitem = $this->encodeModeKanji($inputitem, $version);
|
|---|
| 1669 | break;
|
|---|
| 1670 | }
|
|---|
| 1671 | case QR_MODE_ST: {
|
|---|
| 1672 | $inputitem = $this->encodeModeStructure($inputitem);
|
|---|
| 1673 | break;
|
|---|
| 1674 | }
|
|---|
| 1675 | default: {
|
|---|
| 1676 | break;
|
|---|
| 1677 | }
|
|---|
| 1678 | }
|
|---|
| 1679 | }
|
|---|
| 1680 | return $inputitem;
|
|---|
| 1681 | }
|
|---|
| 1682 |
|
|---|
| 1683 | // - - - - - - - - - - - - - - - - - - - - - - - - -
|
|---|
| 1684 |
|
|---|
| 1685 | // QRinput
|
|---|
| 1686 |
|
|---|
| 1687 | /**
|
|---|
| 1688 | * Append data to an input object.
|
|---|
| 1689 | * The data is copied and appended to the input object.
|
|---|
| 1690 | * @param $items (arrray) input items
|
|---|
| 1691 | * @param $mode (int) encoding mode.
|
|---|
| 1692 | * @param $size (int) size of data (byte).
|
|---|
| 1693 | * @param $data (array) array of input data.
|
|---|
| 1694 | * @return items
|
|---|
| 1695 | *
|
|---|
| 1696 | */
|
|---|
| 1697 | protected function appendNewInputItem($items, $mode, $size, $data) {
|
|---|
| 1698 | $newitem = $this->newInputItem($mode, $size, $data);
|
|---|
| 1699 | if (!empty($newitem)) {
|
|---|
| 1700 | $items[] = $newitem;
|
|---|
| 1701 | }
|
|---|
| 1702 | return $items;
|
|---|
| 1703 | }
|
|---|
| 1704 |
|
|---|
| 1705 | /**
|
|---|
| 1706 | * insertStructuredAppendHeader
|
|---|
| 1707 | * @param $items (array)
|
|---|
| 1708 | * @param $size (int)
|
|---|
| 1709 | * @param $index (int)
|
|---|
| 1710 | * @param $parity (int)
|
|---|
| 1711 | * @return array items
|
|---|
| 1712 | */
|
|---|
| 1713 | protected function insertStructuredAppendHeader($items, $size, $index, $parity) {
|
|---|
| 1714 | if ($size > MAX_STRUCTURED_SYMBOLS) {
|
|---|
| 1715 | return -1;
|
|---|
| 1716 | }
|
|---|
| 1717 | if (($index <= 0) OR ($index > MAX_STRUCTURED_SYMBOLS)) {
|
|---|
| 1718 | return -1;
|
|---|
| 1719 | }
|
|---|
| 1720 | $buf = array($size, $index, $parity);
|
|---|
| 1721 | $entry = $this->newInputItem(QR_MODE_ST, 3, buf);
|
|---|
| 1722 | array_unshift($items, $entry);
|
|---|
| 1723 | return $items;
|
|---|
| 1724 | }
|
|---|
| 1725 |
|
|---|
| 1726 | /**
|
|---|
| 1727 | * calcParity
|
|---|
| 1728 | * @param $items (array)
|
|---|
| 1729 | * @return int parity
|
|---|
| 1730 | */
|
|---|
| 1731 | protected function calcParity($items) {
|
|---|
| 1732 | $parity = 0;
|
|---|
| 1733 | foreach ($items as $item) {
|
|---|
| 1734 | if ($item['mode'] != QR_MODE_ST) {
|
|---|
| 1735 | for ($i=$item['size']-1; $i>=0; --$i) {
|
|---|
| 1736 | $parity ^= $item['data'][$i];
|
|---|
| 1737 | }
|
|---|
| 1738 | }
|
|---|
| 1739 | }
|
|---|
| 1740 | return $parity;
|
|---|
| 1741 | }
|
|---|
| 1742 |
|
|---|
| 1743 | /**
|
|---|
| 1744 | * checkModeNum
|
|---|
| 1745 | * @param $size (int)
|
|---|
| 1746 | * @param $data (array)
|
|---|
| 1747 | * @return boolean true or false
|
|---|
| 1748 | */
|
|---|
| 1749 | protected function checkModeNum($size, $data) {
|
|---|
| 1750 | for ($i=0; $i<$size; ++$i) {
|
|---|
| 1751 | if ((ord($data[$i]) < ord('0')) OR (ord($data[$i]) > ord('9'))){
|
|---|
| 1752 | return false;
|
|---|
| 1753 | }
|
|---|
| 1754 | }
|
|---|
| 1755 | return true;
|
|---|
| 1756 | }
|
|---|
| 1757 |
|
|---|
| 1758 | /**
|
|---|
| 1759 | * Look up the alphabet-numeric convesion table (see JIS X0510:2004, pp.19).
|
|---|
| 1760 | * @param $c (int) character value
|
|---|
| 1761 | * @return value
|
|---|
| 1762 | */
|
|---|
| 1763 | protected function lookAnTable($c) {
|
|---|
| 1764 | return (($c > 127)?-1:$this->anTable[$c]);
|
|---|
| 1765 | }
|
|---|
| 1766 |
|
|---|
| 1767 | /**
|
|---|
| 1768 | * checkModeAn
|
|---|
| 1769 | * @param $size (int)
|
|---|
| 1770 | * @param $data (array)
|
|---|
| 1771 | * @return boolean true or false
|
|---|
| 1772 | */
|
|---|
| 1773 | protected function checkModeAn($size, $data) {
|
|---|
| 1774 | for ($i=0; $i<$size; ++$i) {
|
|---|
| 1775 | if ($this->lookAnTable(ord($data[$i])) == -1) {
|
|---|
| 1776 | return false;
|
|---|
| 1777 | }
|
|---|
| 1778 | }
|
|---|
| 1779 | return true;
|
|---|
| 1780 | }
|
|---|
| 1781 |
|
|---|
| 1782 | /**
|
|---|
| 1783 | * estimateBitsModeNum
|
|---|
| 1784 | * @param $size (int)
|
|---|
| 1785 | * @return int number of bits
|
|---|
| 1786 | */
|
|---|
| 1787 | protected function estimateBitsModeNum($size) {
|
|---|
| 1788 | $w = (int)($size / 3);
|
|---|
| 1789 | $bits = ($w * 10);
|
|---|
| 1790 | switch($size - ($w * 3)) {
|
|---|
| 1791 | case 1: {
|
|---|
| 1792 | $bits += 4;
|
|---|
| 1793 | break;
|
|---|
| 1794 | }
|
|---|
| 1795 | case 2: {
|
|---|
| 1796 | $bits += 7;
|
|---|
| 1797 | break;
|
|---|
| 1798 | }
|
|---|
| 1799 | }
|
|---|
| 1800 | return $bits;
|
|---|
| 1801 | }
|
|---|
| 1802 |
|
|---|
| 1803 | /**
|
|---|
| 1804 | * estimateBitsModeAn
|
|---|
| 1805 | * @param $size (int)
|
|---|
| 1806 | * @return int number of bits
|
|---|
| 1807 | */
|
|---|
| 1808 | protected function estimateBitsModeAn($size) {
|
|---|
| 1809 | $bits = (int)($size * 5.5); // (size / 2 ) * 11
|
|---|
| 1810 | if ($size & 1) {
|
|---|
| 1811 | $bits += 6;
|
|---|
| 1812 | }
|
|---|
| 1813 | return $bits;
|
|---|
| 1814 | }
|
|---|
| 1815 |
|
|---|
| 1816 | /**
|
|---|
| 1817 | * estimateBitsMode8
|
|---|
| 1818 | * @param $size (int)
|
|---|
| 1819 | * @return int number of bits
|
|---|
| 1820 | */
|
|---|
| 1821 | protected function estimateBitsMode8($size) {
|
|---|
| 1822 | return (int)($size * 8);
|
|---|
| 1823 | }
|
|---|
| 1824 |
|
|---|
| 1825 | /**
|
|---|
| 1826 | * estimateBitsModeKanji
|
|---|
| 1827 | * @param $size (int)
|
|---|
| 1828 | * @return int number of bits
|
|---|
| 1829 | */
|
|---|
| 1830 | protected function estimateBitsModeKanji($size) {
|
|---|
| 1831 | return (int)($size * 6.5); // (size / 2 ) * 13
|
|---|
| 1832 | }
|
|---|
| 1833 |
|
|---|
| 1834 | /**
|
|---|
| 1835 | * checkModeKanji
|
|---|
| 1836 | * @param $size (int)
|
|---|
| 1837 | * @param $data (array)
|
|---|
| 1838 | * @return boolean true or false
|
|---|
| 1839 | */
|
|---|
| 1840 | protected function checkModeKanji($size, $data) {
|
|---|
| 1841 | if ($size & 1) {
|
|---|
| 1842 | return false;
|
|---|
| 1843 | }
|
|---|
| 1844 | for ($i=0; $i<$size; $i+=2) {
|
|---|
| 1845 | $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
|
|---|
| 1846 | if (($val < 0x8140) OR (($val > 0x9ffc) AND ($val < 0xe040)) OR ($val > 0xebbf)) {
|
|---|
| 1847 | return false;
|
|---|
| 1848 | }
|
|---|
| 1849 | }
|
|---|
| 1850 | return true;
|
|---|
| 1851 | }
|
|---|
| 1852 |
|
|---|
| 1853 | /**
|
|---|
| 1854 | * Validate the input data.
|
|---|
| 1855 | * @param $mode (int) encoding mode.
|
|---|
| 1856 | * @param $size (int) size of data (byte).
|
|---|
| 1857 | * @param $data (array) data to validate
|
|---|
| 1858 | * @return boolean true in case of valid data, false otherwise
|
|---|
| 1859 | */
|
|---|
| 1860 | protected function check($mode, $size, $data) {
|
|---|
| 1861 | if ($size <= 0) {
|
|---|
| 1862 | return false;
|
|---|
| 1863 | }
|
|---|
| 1864 | switch($mode) {
|
|---|
| 1865 | case QR_MODE_NM: {
|
|---|
| 1866 | return $this->checkModeNum($size, $data);
|
|---|
| 1867 | }
|
|---|
| 1868 | case QR_MODE_AN: {
|
|---|
| 1869 | return $this->checkModeAn($size, $data);
|
|---|
| 1870 | }
|
|---|
| 1871 | case QR_MODE_KJ: {
|
|---|
| 1872 | return $this->checkModeKanji($size, $data);
|
|---|
| 1873 | }
|
|---|
| 1874 | case QR_MODE_8B: {
|
|---|
| 1875 | return true;
|
|---|
| 1876 | }
|
|---|
| 1877 | case QR_MODE_ST: {
|
|---|
| 1878 | return true;
|
|---|
| 1879 | }
|
|---|
| 1880 | default: {
|
|---|
| 1881 | break;
|
|---|
| 1882 | }
|
|---|
| 1883 | }
|
|---|
| 1884 | return false;
|
|---|
| 1885 | }
|
|---|
| 1886 |
|
|---|
| 1887 | /**
|
|---|
| 1888 | * estimateBitStreamSize
|
|---|
| 1889 | * @param $items (array)
|
|---|
| 1890 | * @param $version (int)
|
|---|
| 1891 | * @return int bits
|
|---|
| 1892 | */
|
|---|
| 1893 | protected function estimateBitStreamSize($items, $version) {
|
|---|
| 1894 | $bits = 0;
|
|---|
| 1895 | if ($version == 0) {
|
|---|
| 1896 | $version = 1;
|
|---|
| 1897 | }
|
|---|
| 1898 | foreach ($items as $item) {
|
|---|
| 1899 | switch($item['mode']) {
|
|---|
| 1900 | case QR_MODE_NM: {
|
|---|
| 1901 | $bits = $this->estimateBitsModeNum($item['size']);
|
|---|
| 1902 | break;
|
|---|
| 1903 | }
|
|---|
| 1904 | case QR_MODE_AN: {
|
|---|
| 1905 | $bits = $this->estimateBitsModeAn($item['size']);
|
|---|
| 1906 | break;
|
|---|
| 1907 | }
|
|---|
| 1908 | case QR_MODE_8B: {
|
|---|
| 1909 | $bits = $this->estimateBitsMode8($item['size']);
|
|---|
| 1910 | break;
|
|---|
| 1911 | }
|
|---|
| 1912 | case QR_MODE_KJ: {
|
|---|
| 1913 | $bits = $this->estimateBitsModeKanji($item['size']);
|
|---|
| 1914 | break;
|
|---|
| 1915 | }
|
|---|
| 1916 | case QR_MODE_ST: {
|
|---|
| 1917 | return STRUCTURE_HEADER_BITS;
|
|---|
| 1918 | }
|
|---|
| 1919 | default: {
|
|---|
| 1920 | return 0;
|
|---|
| 1921 | }
|
|---|
| 1922 | }
|
|---|
| 1923 | $l = $this->lengthIndicator($item['mode'], $version);
|
|---|
| 1924 | $m = 1 << $l;
|
|---|
| 1925 | $num = (int)(($item['size'] + $m - 1) / $m);
|
|---|
| 1926 | $bits += $num * (4 + $l);
|
|---|
| 1927 | }
|
|---|
| 1928 | return $bits;
|
|---|
| 1929 | }
|
|---|
| 1930 |
|
|---|
| 1931 | /**
|
|---|
| 1932 | * estimateVersion
|
|---|
| 1933 | * @param $items (array)
|
|---|
| 1934 | * @return int version
|
|---|
| 1935 | */
|
|---|
| 1936 | protected function estimateVersion($items) {
|
|---|
| 1937 | $version = 0;
|
|---|
| 1938 | $prev = 0;
|
|---|
| 1939 | do {
|
|---|
| 1940 | $prev = $version;
|
|---|
| 1941 | $bits = $this->estimateBitStreamSize($items, $prev);
|
|---|
| 1942 | $version = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
|
|---|
| 1943 | if ($version < 0) {
|
|---|
| 1944 | return -1;
|
|---|
| 1945 | }
|
|---|
| 1946 | } while ($version > $prev);
|
|---|
| 1947 | return $version;
|
|---|
| 1948 | }
|
|---|
| 1949 |
|
|---|
| 1950 | /**
|
|---|
| 1951 | * lengthOfCode
|
|---|
| 1952 | * @param $mode (int)
|
|---|
| 1953 | * @param $version (int)
|
|---|
| 1954 | * @param $bits (int)
|
|---|
| 1955 | * @return int size
|
|---|
| 1956 | */
|
|---|
| 1957 | protected function lengthOfCode($mode, $version, $bits) {
|
|---|
| 1958 | $payload = $bits - 4 - $this->lengthIndicator($mode, $version);
|
|---|
| 1959 | switch($mode) {
|
|---|
| 1960 | case QR_MODE_NM: {
|
|---|
| 1961 | $chunks = (int)($payload / 10);
|
|---|
| 1962 | $remain = $payload - $chunks * 10;
|
|---|
| 1963 | $size = $chunks * 3;
|
|---|
| 1964 | if ($remain >= 7) {
|
|---|
| 1965 | $size += 2;
|
|---|
| 1966 | } elseif ($remain >= 4) {
|
|---|
| 1967 | $size += 1;
|
|---|
| 1968 | }
|
|---|
| 1969 | break;
|
|---|
| 1970 | }
|
|---|
| 1971 | case QR_MODE_AN: {
|
|---|
| 1972 | $chunks = (int)($payload / 11);
|
|---|
| 1973 | $remain = $payload - $chunks * 11;
|
|---|
| 1974 | $size = $chunks * 2;
|
|---|
| 1975 | if ($remain >= 6) {
|
|---|
| 1976 | ++$size;
|
|---|
| 1977 | }
|
|---|
| 1978 | break;
|
|---|
| 1979 | }
|
|---|
| 1980 | case QR_MODE_8B: {
|
|---|
| 1981 | $size = (int)($payload / 8);
|
|---|
| 1982 | break;
|
|---|
| 1983 | }
|
|---|
| 1984 | case QR_MODE_KJ: {
|
|---|
| 1985 | $size = (int)(($payload / 13) * 2);
|
|---|
| 1986 | break;
|
|---|
| 1987 | }
|
|---|
| 1988 | case QR_MODE_ST: {
|
|---|
| 1989 | $size = (int)($payload / 8);
|
|---|
| 1990 | break;
|
|---|
| 1991 | }
|
|---|
| 1992 | default: {
|
|---|
| 1993 | $size = 0;
|
|---|
| 1994 | break;
|
|---|
| 1995 | }
|
|---|
| 1996 | }
|
|---|
| 1997 | $maxsize = $this->maximumWords($mode, $version);
|
|---|
| 1998 | if ($size < 0) {
|
|---|
| 1999 | $size = 0;
|
|---|
| 2000 | }
|
|---|
| 2001 | if ($size > $maxsize) {
|
|---|
| 2002 | $size = $maxsize;
|
|---|
| 2003 | }
|
|---|
| 2004 | return $size;
|
|---|
| 2005 | }
|
|---|
| 2006 |
|
|---|
| 2007 | /**
|
|---|
| 2008 | * createBitStream
|
|---|
| 2009 | * @param $items (array)
|
|---|
| 2010 | * @return array of items and total bits
|
|---|
| 2011 | */
|
|---|
| 2012 | protected function createBitStream($items) {
|
|---|
| 2013 | $total = 0;
|
|---|
| 2014 | foreach ($items as $key => $item) {
|
|---|
| 2015 | $items[$key] = $this->encodeBitStream($item, $this->version);
|
|---|
| 2016 | $bits = count($items[$key]['bstream']);
|
|---|
| 2017 | $total += $bits;
|
|---|
| 2018 | }
|
|---|
| 2019 | return array($items, $total);
|
|---|
| 2020 | }
|
|---|
| 2021 |
|
|---|
| 2022 | /**
|
|---|
| 2023 | * convertData
|
|---|
| 2024 | * @param $items (array)
|
|---|
| 2025 | * @return array items
|
|---|
| 2026 | */
|
|---|
| 2027 | protected function convertData($items) {
|
|---|
| 2028 | $ver = $this->estimateVersion($items);
|
|---|
| 2029 | if ($ver > $this->version) {
|
|---|
| 2030 | $this->version = $ver;
|
|---|
| 2031 | }
|
|---|
| 2032 | while (true) {
|
|---|
| 2033 | $cbs = $this->createBitStream($items);
|
|---|
| 2034 | $items = $cbs[0];
|
|---|
| 2035 | $bits = $cbs[1];
|
|---|
| 2036 | if ($bits < 0) {
|
|---|
| 2037 | return -1;
|
|---|
| 2038 | }
|
|---|
| 2039 | $ver = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
|
|---|
| 2040 | if ($ver < 0) {
|
|---|
| 2041 | return -1;
|
|---|
| 2042 | } elseif ($ver > $this->version) {
|
|---|
| 2043 | $this->version = $ver;
|
|---|
| 2044 | } else {
|
|---|
| 2045 | break;
|
|---|
| 2046 | }
|
|---|
| 2047 | }
|
|---|
| 2048 | return $items;
|
|---|
| 2049 | }
|
|---|
| 2050 |
|
|---|
| 2051 | /**
|
|---|
| 2052 | * Append Padding Bit to bitstream
|
|---|
| 2053 | * @param $bstream (array)
|
|---|
| 2054 | * @return array bitstream
|
|---|
| 2055 | */
|
|---|
| 2056 | protected function appendPaddingBit($bstream) {
|
|---|
| 2057 | if (is_null($bstream)) {
|
|---|
| 2058 | return null;
|
|---|
| 2059 | }
|
|---|
| 2060 | $bits = count($bstream);
|
|---|
| 2061 | $maxwords = $this->getDataLength($this->version, $this->level);
|
|---|
| 2062 | $maxbits = $maxwords * 8;
|
|---|
| 2063 | if ($maxbits == $bits) {
|
|---|
| 2064 | return $bstream;
|
|---|
| 2065 | }
|
|---|
| 2066 | if ($maxbits - $bits < 5) {
|
|---|
| 2067 | return $this->appendNum($bstream, $maxbits - $bits, 0);
|
|---|
| 2068 | }
|
|---|
| 2069 | $bits += 4;
|
|---|
| 2070 | $words = (int)(($bits + 7) / 8);
|
|---|
| 2071 | $padding = array();
|
|---|
| 2072 | $padding = $this->appendNum($padding, $words * 8 - $bits + 4, 0);
|
|---|
| 2073 | $padlen = $maxwords - $words;
|
|---|
| 2074 | if ($padlen > 0) {
|
|---|
| 2075 | $padbuf = array();
|
|---|
| 2076 | for ($i=0; $i<$padlen; ++$i) {
|
|---|
| 2077 | $padbuf[$i] = ($i&1)?0x11:0xec;
|
|---|
| 2078 | }
|
|---|
| 2079 | $padding = $this->appendBytes($padding, $padlen, $padbuf);
|
|---|
| 2080 | }
|
|---|
| 2081 | return $this->appendBitstream($bstream, $padding);
|
|---|
| 2082 | }
|
|---|
| 2083 |
|
|---|
| 2084 | /**
|
|---|
| 2085 | * mergeBitStream
|
|---|
| 2086 | * @param $items (array) items
|
|---|
| 2087 | * @return array bitstream
|
|---|
| 2088 | */
|
|---|
| 2089 | protected function mergeBitStream($items) {
|
|---|
| 2090 | $items = $this->convertData($items);
|
|---|
| 2091 | if (!is_array($items)) {
|
|---|
| 2092 | return null;
|
|---|
| 2093 | }
|
|---|
| 2094 | $bstream = array();
|
|---|
| 2095 | foreach ($items as $item) {
|
|---|
| 2096 | $bstream = $this->appendBitstream($bstream, $item['bstream']);
|
|---|
| 2097 | }
|
|---|
| 2098 | return $bstream;
|
|---|
| 2099 | }
|
|---|
| 2100 |
|
|---|
| 2101 | /**
|
|---|
| 2102 | * Returns a stream of bits.
|
|---|
| 2103 | * @param $items (int)
|
|---|
| 2104 | * @return array padded merged byte stream
|
|---|
| 2105 | */
|
|---|
| 2106 | protected function getBitStream($items) {
|
|---|
| 2107 | $bstream = $this->mergeBitStream($items);
|
|---|
| 2108 | return $this->appendPaddingBit($bstream);
|
|---|
| 2109 | }
|
|---|
| 2110 |
|
|---|
| 2111 | /**
|
|---|
| 2112 | * Pack all bit streams padding bits into a byte array.
|
|---|
| 2113 | * @param $items (int)
|
|---|
| 2114 | * @return array padded merged byte stream
|
|---|
| 2115 | */
|
|---|
| 2116 | protected function getByteStream($items) {
|
|---|
| 2117 | $bstream = $this->getBitStream($items);
|
|---|
| 2118 | return $this->bitstreamToByte($bstream);
|
|---|
| 2119 | }
|
|---|
| 2120 |
|
|---|
| 2121 | // - - - - - - - - - - - - - - - - - - - - - - - - -
|
|---|
| 2122 |
|
|---|
| 2123 | // QRbitstream
|
|---|
| 2124 |
|
|---|
| 2125 | /**
|
|---|
| 2126 | * Return an array with zeros
|
|---|
| 2127 | * @param $setLength (int) array size
|
|---|
| 2128 | * @return array
|
|---|
| 2129 | */
|
|---|
| 2130 | protected function allocate($setLength) {
|
|---|
| 2131 | return array_fill(0, $setLength, 0);
|
|---|
| 2132 | }
|
|---|
| 2133 |
|
|---|
| 2134 | /**
|
|---|
| 2135 | * Return new bitstream from number
|
|---|
| 2136 | * @param $bits (int) number of bits
|
|---|
| 2137 | * @param $num (int) number
|
|---|
| 2138 | * @return array bitstream
|
|---|
| 2139 | */
|
|---|
| 2140 | protected function newFromNum($bits, $num) {
|
|---|
| 2141 | $bstream = $this->allocate($bits);
|
|---|
| 2142 | $mask = 1 << ($bits - 1);
|
|---|
| 2143 | for ($i=0; $i<$bits; ++$i) {
|
|---|
| 2144 | if ($num & $mask) {
|
|---|
| 2145 | $bstream[$i] = 1;
|
|---|
| 2146 | } else {
|
|---|
| 2147 | $bstream[$i] = 0;
|
|---|
| 2148 | }
|
|---|
| 2149 | $mask = $mask >> 1;
|
|---|
| 2150 | }
|
|---|
| 2151 | return $bstream;
|
|---|
| 2152 | }
|
|---|
| 2153 |
|
|---|
| 2154 | /**
|
|---|
| 2155 | * Return new bitstream from bytes
|
|---|
| 2156 | * @param $size (int) size
|
|---|
| 2157 | * @param $data (array) bytes
|
|---|
| 2158 | * @return array bitstream
|
|---|
| 2159 | */
|
|---|
| 2160 | protected function newFromBytes($size, $data) {
|
|---|
| 2161 | $bstream = $this->allocate($size * 8);
|
|---|
| 2162 | $p=0;
|
|---|
| 2163 | for ($i=0; $i<$size; ++$i) {
|
|---|
| 2164 | $mask = 0x80;
|
|---|
| 2165 | for ($j=0; $j<8; ++$j) {
|
|---|
| 2166 | if ($data[$i] & $mask) {
|
|---|
| 2167 | $bstream[$p] = 1;
|
|---|
| 2168 | } else {
|
|---|
| 2169 | $bstream[$p] = 0;
|
|---|
| 2170 | }
|
|---|
| 2171 | $p++;
|
|---|
| 2172 | $mask = $mask >> 1;
|
|---|
| 2173 | }
|
|---|
| 2174 | }
|
|---|
| 2175 | return $bstream;
|
|---|
| 2176 | }
|
|---|
| 2177 |
|
|---|
| 2178 | /**
|
|---|
| 2179 | * Append one bitstream to another
|
|---|
| 2180 | * @param $bitstream (array) original bitstream
|
|---|
| 2181 | * @param $append (array) bitstream to append
|
|---|
| 2182 | * @return array bitstream
|
|---|
| 2183 | */
|
|---|
| 2184 | protected function appendBitstream($bitstream, $append) {
|
|---|
| 2185 | if ((!is_array($append)) OR (count($append) == 0)) {
|
|---|
| 2186 | return $bitstream;
|
|---|
| 2187 | }
|
|---|
| 2188 | if (count($bitstream) == 0) {
|
|---|
| 2189 | return $append;
|
|---|
| 2190 | }
|
|---|
| 2191 | return array_values(array_merge($bitstream, $append));
|
|---|
| 2192 | }
|
|---|
| 2193 |
|
|---|
| 2194 | /**
|
|---|
| 2195 | * Append one bitstream created from number to another
|
|---|
| 2196 | * @param $bitstream (array) original bitstream
|
|---|
| 2197 | * @param $bits (int) number of bits
|
|---|
| 2198 | * @param $num (int) number
|
|---|
| 2199 | * @return array bitstream
|
|---|
| 2200 | */
|
|---|
| 2201 | protected function appendNum($bitstream, $bits, $num) {
|
|---|
| 2202 | if ($bits == 0) {
|
|---|
| 2203 | return 0;
|
|---|
| 2204 | }
|
|---|
| 2205 | $b = $this->newFromNum($bits, $num);
|
|---|
| 2206 | return $this->appendBitstream($bitstream, $b);
|
|---|
| 2207 | }
|
|---|
| 2208 |
|
|---|
| 2209 | /**
|
|---|
| 2210 | * Append one bitstream created from bytes to another
|
|---|
| 2211 | * @param $bitstream (array) original bitstream
|
|---|
| 2212 | * @param $size (int) size
|
|---|
| 2213 | * @param $data (array) bytes
|
|---|
| 2214 | * @return array bitstream
|
|---|
| 2215 | */
|
|---|
| 2216 | protected function appendBytes($bitstream, $size, $data) {
|
|---|
| 2217 | if ($size == 0) {
|
|---|
| 2218 | return 0;
|
|---|
| 2219 | }
|
|---|
| 2220 | $b = $this->newFromBytes($size, $data);
|
|---|
| 2221 | return $this->appendBitstream($bitstream, $b);
|
|---|
| 2222 | }
|
|---|
| 2223 |
|
|---|
| 2224 | /**
|
|---|
| 2225 | * Convert bitstream to bytes
|
|---|
| 2226 | * @param $bstream (array) original bitstream
|
|---|
| 2227 | * @return array of bytes
|
|---|
| 2228 | */
|
|---|
| 2229 | protected function bitstreamToByte($bstream) {
|
|---|
| 2230 | if (is_null($bstream)) {
|
|---|
| 2231 | return null;
|
|---|
| 2232 | }
|
|---|
| 2233 | $size = count($bstream);
|
|---|
| 2234 | if ($size == 0) {
|
|---|
| 2235 | return array();
|
|---|
| 2236 | }
|
|---|
| 2237 | $data = array_fill(0, (int)(($size + 7) / 8), 0);
|
|---|
| 2238 | $bytes = (int)($size / 8);
|
|---|
| 2239 | $p = 0;
|
|---|
| 2240 | for ($i=0; $i<$bytes; $i++) {
|
|---|
| 2241 | $v = 0;
|
|---|
| 2242 | for ($j=0; $j<8; $j++) {
|
|---|
| 2243 | $v = $v << 1;
|
|---|
| 2244 | $v |= $bstream[$p];
|
|---|
| 2245 | $p++;
|
|---|
| 2246 | }
|
|---|
| 2247 | $data[$i] = $v;
|
|---|
| 2248 | }
|
|---|
| 2249 | if ($size & 7) {
|
|---|
| 2250 | $v = 0;
|
|---|
| 2251 | for ($j=0; $j<($size & 7); $j++) {
|
|---|
| 2252 | $v = $v << 1;
|
|---|
| 2253 | $v |= $bstream[$p];
|
|---|
| 2254 | $p++;
|
|---|
| 2255 | }
|
|---|
| 2256 | $data[$bytes] = $v;
|
|---|
| 2257 | }
|
|---|
| 2258 | return $data;
|
|---|
| 2259 | }
|
|---|
| 2260 |
|
|---|
| 2261 | // - - - - - - - - - - - - - - - - - - - - - - - - -
|
|---|
| 2262 |
|
|---|
| 2263 | // QRspec
|
|---|
| 2264 |
|
|---|
| 2265 | /**
|
|---|
| 2266 | * Replace a value on the array at the specified position
|
|---|
| 2267 | * @param $srctab (array)
|
|---|
| 2268 | * @param $x (int) X position
|
|---|
| 2269 | * @param $y (int) Y position
|
|---|
| 2270 | * @param $repl (string) value to replace
|
|---|
| 2271 | * @param $replLen (int) length of the repl string
|
|---|
| 2272 | * @return array srctab
|
|---|
| 2273 | */
|
|---|
| 2274 | protected function qrstrset($srctab, $x, $y, $repl, $replLen=false) {
|
|---|
| 2275 | $srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
|
|---|
| 2276 | return $srctab;
|
|---|
| 2277 | }
|
|---|
| 2278 |
|
|---|
| 2279 | /**
|
|---|
| 2280 | * Return maximum data code length (bytes) for the version.
|
|---|
| 2281 | * @param $version (int) version
|
|---|
| 2282 | * @param $level (int) error correction level
|
|---|
| 2283 | * @return int maximum size (bytes)
|
|---|
| 2284 | */
|
|---|
| 2285 | protected function getDataLength($version, $level) {
|
|---|
| 2286 | return $this->capacity[$version][QRCAP_WORDS] - $this->capacity[$version][QRCAP_EC][$level];
|
|---|
| 2287 | }
|
|---|
| 2288 |
|
|---|
| 2289 | /**
|
|---|
| 2290 | * Return maximum error correction code length (bytes) for the version.
|
|---|
| 2291 | * @param $version (int) version
|
|---|
| 2292 | * @param $level (int) error correction level
|
|---|
| 2293 | * @return int ECC size (bytes)
|
|---|
| 2294 | */
|
|---|
| 2295 | protected function getECCLength($version, $level){
|
|---|
| 2296 | return $this->capacity[$version][QRCAP_EC][$level];
|
|---|
| 2297 | }
|
|---|
| 2298 |
|
|---|
| 2299 | /**
|
|---|
| 2300 | * Return the width of the symbol for the version.
|
|---|
| 2301 | * @param $version (int) version
|
|---|
| 2302 | * @return int width
|
|---|
| 2303 | */
|
|---|
| 2304 | protected function getWidth($version) {
|
|---|
| 2305 | return $this->capacity[$version][QRCAP_WIDTH];
|
|---|
| 2306 | }
|
|---|
| 2307 |
|
|---|
| 2308 | /**
|
|---|
| 2309 | * Return the numer of remainder bits.
|
|---|
| 2310 | * @param $version (int) version
|
|---|
| 2311 | * @return int number of remainder bits
|
|---|
| 2312 | */
|
|---|
| 2313 | protected function getRemainder($version) {
|
|---|
| 2314 | return $this->capacity[$version][QRCAP_REMINDER];
|
|---|
| 2315 | }
|
|---|
| 2316 |
|
|---|
| 2317 | /**
|
|---|
| 2318 | * Return a version number that satisfies the input code length.
|
|---|
| 2319 | * @param $size (int) input code length (bytes)
|
|---|
| 2320 | * @param $level (int) error correction level
|
|---|
| 2321 | * @return int version number
|
|---|
| 2322 | */
|
|---|
| 2323 | protected function getMinimumVersion($size, $level) {
|
|---|
| 2324 | for ($i = 1; $i <= QRSPEC_VERSION_MAX; ++$i) {
|
|---|
| 2325 | $words = ($this->capacity[$i][QRCAP_WORDS] - $this->capacity[$i][QRCAP_EC][$level]);
|
|---|
| 2326 | if ($words >= $size) {
|
|---|
| 2327 | return $i;
|
|---|
| 2328 | }
|
|---|
| 2329 | }
|
|---|
| 2330 | // the size of input data is greater than QR capacity, try to lover the error correction mode
|
|---|
| 2331 | return -1;
|
|---|
| 2332 | }
|
|---|
| 2333 |
|
|---|
| 2334 | /**
|
|---|
| 2335 | * Return the size of length indicator for the mode and version.
|
|---|
| 2336 | * @param $mode (int) encoding mode
|
|---|
| 2337 | * @param $version (int) version
|
|---|
| 2338 | * @return int the size of the appropriate length indicator (bits).
|
|---|
| 2339 | */
|
|---|
| 2340 | protected function lengthIndicator($mode, $version) {
|
|---|
| 2341 | if ($mode == QR_MODE_ST) {
|
|---|
| 2342 | return 0;
|
|---|
| 2343 | }
|
|---|
| 2344 | if ($version <= 9) {
|
|---|
| 2345 | $l = 0;
|
|---|
| 2346 | } elseif ($version <= 26) {
|
|---|
| 2347 | $l = 1;
|
|---|
| 2348 | } else {
|
|---|
| 2349 | $l = 2;
|
|---|
| 2350 | }
|
|---|
| 2351 | return $this->lengthTableBits[$mode][$l];
|
|---|
| 2352 | }
|
|---|
| 2353 |
|
|---|
| 2354 | /**
|
|---|
| 2355 | * Return the maximum length for the mode and version.
|
|---|
| 2356 | * @param $mode (int) encoding mode
|
|---|
| 2357 | * @param $version (int) version
|
|---|
| 2358 | * @return int the maximum length (bytes)
|
|---|
| 2359 | */
|
|---|
| 2360 | protected function maximumWords($mode, $version) {
|
|---|
| 2361 | if ($mode == QR_MODE_ST) {
|
|---|
| 2362 | return 3;
|
|---|
| 2363 | }
|
|---|
| 2364 | if ($version <= 9) {
|
|---|
| 2365 | $l = 0;
|
|---|
| 2366 | } else if ($version <= 26) {
|
|---|
| 2367 | $l = 1;
|
|---|
| 2368 | } else {
|
|---|
| 2369 | $l = 2;
|
|---|
| 2370 | }
|
|---|
| 2371 | $bits = $this->lengthTableBits[$mode][$l];
|
|---|
| 2372 | $words = (1 << $bits) - 1;
|
|---|
| 2373 | if ($mode == QR_MODE_KJ) {
|
|---|
| 2374 | $words *= 2; // the number of bytes is required
|
|---|
| 2375 | }
|
|---|
| 2376 | return $words;
|
|---|
| 2377 | }
|
|---|
| 2378 |
|
|---|
| 2379 | /**
|
|---|
| 2380 | * Return an array of ECC specification.
|
|---|
| 2381 | * @param $version (int) version
|
|---|
| 2382 | * @param $level (int) error correction level
|
|---|
| 2383 | * @param $spec (array) an array of ECC specification contains as following: {# of type1 blocks, # of data code, # of ecc code, # of type2 blocks, # of data code}
|
|---|
| 2384 | * @return array spec
|
|---|
| 2385 | */
|
|---|
| 2386 | protected function getEccSpec($version, $level, $spec) {
|
|---|
| 2387 | if (count($spec) < 5) {
|
|---|
| 2388 | $spec = array(0, 0, 0, 0, 0);
|
|---|
| 2389 | }
|
|---|
| 2390 | $b1 = $this->eccTable[$version][$level][0];
|
|---|
| 2391 | $b2 = $this->eccTable[$version][$level][1];
|
|---|
| 2392 | $data = $this->getDataLength($version, $level);
|
|---|
| 2393 | $ecc = $this->getECCLength($version, $level);
|
|---|
| 2394 | if ($b2 == 0) {
|
|---|
| 2395 | $spec[0] = $b1;
|
|---|
| 2396 | $spec[1] = (int)($data / $b1);
|
|---|
| 2397 | $spec[2] = (int)($ecc / $b1);
|
|---|
| 2398 | $spec[3] = 0;
|
|---|
| 2399 | $spec[4] = 0;
|
|---|
| 2400 | } else {
|
|---|
| 2401 | $spec[0] = $b1;
|
|---|
| 2402 | $spec[1] = (int)($data / ($b1 + $b2));
|
|---|
| 2403 | $spec[2] = (int)($ecc / ($b1 + $b2));
|
|---|
| 2404 | $spec[3] = $b2;
|
|---|
| 2405 | $spec[4] = $spec[1] + 1;
|
|---|
| 2406 | }
|
|---|
| 2407 | return $spec;
|
|---|
| 2408 | }
|
|---|
| 2409 |
|
|---|
| 2410 | /**
|
|---|
| 2411 | * Put an alignment marker.
|
|---|
| 2412 | * @param $frame (array) frame
|
|---|
| 2413 | * @param $ox (int) X center coordinate of the pattern
|
|---|
| 2414 | * @param $oy (int) Y center coordinate of the pattern
|
|---|
| 2415 | * @return array frame
|
|---|
| 2416 | */
|
|---|
| 2417 | protected function putAlignmentMarker($frame, $ox, $oy) {
|
|---|
| 2418 | $finder = array(
|
|---|
| 2419 | "\xa1\xa1\xa1\xa1\xa1",
|
|---|
| 2420 | "\xa1\xa0\xa0\xa0\xa1",
|
|---|
| 2421 | "\xa1\xa0\xa1\xa0\xa1",
|
|---|
| 2422 | "\xa1\xa0\xa0\xa0\xa1",
|
|---|
| 2423 | "\xa1\xa1\xa1\xa1\xa1"
|
|---|
| 2424 | );
|
|---|
| 2425 | $yStart = $oy - 2;
|
|---|
| 2426 | $xStart = $ox - 2;
|
|---|
| 2427 | for ($y=0; $y < 5; $y++) {
|
|---|
| 2428 | $frame = $this->qrstrset($frame, $xStart, $yStart+$y, $finder[$y]);
|
|---|
| 2429 | }
|
|---|
| 2430 | return $frame;
|
|---|
| 2431 | }
|
|---|
| 2432 |
|
|---|
| 2433 | /**
|
|---|
| 2434 | * Put an alignment pattern.
|
|---|
| 2435 | * @param $version (int) version
|
|---|
| 2436 | * @param $frame (array) frame
|
|---|
| 2437 | * @param $width (int) width
|
|---|
| 2438 | * @return array frame
|
|---|
| 2439 | */
|
|---|
| 2440 | protected function putAlignmentPattern($version, $frame, $width) {
|
|---|
| 2441 | if ($version < 2) {
|
|---|
| 2442 | return $frame;
|
|---|
| 2443 | }
|
|---|
| 2444 | $d = $this->alignmentPattern[$version][1] - $this->alignmentPattern[$version][0];
|
|---|
| 2445 | if ($d < 0) {
|
|---|
| 2446 | $w = 2;
|
|---|
| 2447 | } else {
|
|---|
| 2448 | $w = (int)(($width - $this->alignmentPattern[$version][0]) / $d + 2);
|
|---|
| 2449 | }
|
|---|
| 2450 | if ($w * $w - 3 == 1) {
|
|---|
| 2451 | $x = $this->alignmentPattern[$version][0];
|
|---|
| 2452 | $y = $this->alignmentPattern[$version][0];
|
|---|
| 2453 | $frame = $this->putAlignmentMarker($frame, $x, $y);
|
|---|
| 2454 | return $frame;
|
|---|
| 2455 | }
|
|---|
| 2456 | $cx = $this->alignmentPattern[$version][0];
|
|---|
| 2457 | $wo = $w - 1;
|
|---|
| 2458 | for ($x=1; $x < $wo; ++$x) {
|
|---|
| 2459 | $frame = $this->putAlignmentMarker($frame, 6, $cx);
|
|---|
| 2460 | $frame = $this->putAlignmentMarker($frame, $cx, 6);
|
|---|
| 2461 | $cx += $d;
|
|---|
| 2462 | }
|
|---|
| 2463 | $cy = $this->alignmentPattern[$version][0];
|
|---|
| 2464 | for ($y=0; $y < $wo; ++$y) {
|
|---|
| 2465 | $cx = $this->alignmentPattern[$version][0];
|
|---|
| 2466 | for ($x=0; $x < $wo; ++$x) {
|
|---|
| 2467 | $frame = $this->putAlignmentMarker($frame, $cx, $cy);
|
|---|
| 2468 | $cx += $d;
|
|---|
| 2469 | }
|
|---|
| 2470 | $cy += $d;
|
|---|
| 2471 | }
|
|---|
| 2472 | return $frame;
|
|---|
| 2473 | }
|
|---|
| 2474 |
|
|---|
| 2475 | /**
|
|---|
| 2476 | * Return BCH encoded version information pattern that is used for the symbol of version 7 or greater. Use lower 18 bits.
|
|---|
| 2477 | * @param $version (int) version
|
|---|
| 2478 | * @return BCH encoded version information pattern
|
|---|
| 2479 | */
|
|---|
| 2480 | protected function getVersionPattern($version) {
|
|---|
| 2481 | if (($version < 7) OR ($version > QRSPEC_VERSION_MAX)) {
|
|---|
| 2482 | return 0;
|
|---|
| 2483 | }
|
|---|
| 2484 | return $this->versionPattern[($version - 7)];
|
|---|
| 2485 | }
|
|---|
| 2486 |
|
|---|
| 2487 | /**
|
|---|
| 2488 | * Return BCH encoded format information pattern.
|
|---|
| 2489 | * @param $mask (array)
|
|---|
| 2490 | * @param $level (int) error correction level
|
|---|
| 2491 | * @return BCH encoded format information pattern
|
|---|
| 2492 | */
|
|---|
| 2493 | protected function getFormatInfo($mask, $level) {
|
|---|
| 2494 | if (($mask < 0) OR ($mask > 7)) {
|
|---|
| 2495 | return 0;
|
|---|
| 2496 | }
|
|---|
| 2497 | if (($level < 0) OR ($level > 3)) {
|
|---|
| 2498 | return 0;
|
|---|
| 2499 | }
|
|---|
| 2500 | return $this->formatInfo[$level][$mask];
|
|---|
| 2501 | }
|
|---|
| 2502 |
|
|---|
| 2503 | /**
|
|---|
| 2504 | * Put a finder pattern.
|
|---|
| 2505 | * @param $frame (array) frame
|
|---|
| 2506 | * @param $ox (int) X center coordinate of the pattern
|
|---|
| 2507 | * @param $oy (int) Y center coordinate of the pattern
|
|---|
| 2508 | * @return array frame
|
|---|
| 2509 | */
|
|---|
| 2510 | protected function putFinderPattern($frame, $ox, $oy) {
|
|---|
| 2511 | $finder = array(
|
|---|
| 2512 | "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
|
|---|
| 2513 | "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
|
|---|
| 2514 | "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
|
|---|
| 2515 | "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
|
|---|
| 2516 | "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
|
|---|
| 2517 | "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
|
|---|
| 2518 | "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
|
|---|
| 2519 | );
|
|---|
| 2520 | for ($y=0; $y < 7; $y++) {
|
|---|
| 2521 | $frame = $this->qrstrset($frame, $ox, ($oy + $y), $finder[$y]);
|
|---|
| 2522 | }
|
|---|
| 2523 | return $frame;
|
|---|
| 2524 | }
|
|---|
| 2525 |
|
|---|
| 2526 | /**
|
|---|
| 2527 | * Return a copy of initialized frame.
|
|---|
| 2528 | * @param $version (int) version
|
|---|
| 2529 | * @return Array of unsigned char.
|
|---|
| 2530 | */
|
|---|
| 2531 | protected function createFrame($version) {
|
|---|
| 2532 | $width = $this->capacity[$version][QRCAP_WIDTH];
|
|---|
| 2533 | $frameLine = str_repeat ("\0", $width);
|
|---|
| 2534 | $frame = array_fill(0, $width, $frameLine);
|
|---|
| 2535 | // Finder pattern
|
|---|
| 2536 | $frame = $this->putFinderPattern($frame, 0, 0);
|
|---|
| 2537 | $frame = $this->putFinderPattern($frame, $width - 7, 0);
|
|---|
| 2538 | $frame = $this->putFinderPattern($frame, 0, $width - 7);
|
|---|
| 2539 | // Separator
|
|---|
| 2540 | $yOffset = $width - 7;
|
|---|
| 2541 | for ($y=0; $y < 7; ++$y) {
|
|---|
| 2542 | $frame[$y][7] = "\xc0";
|
|---|
| 2543 | $frame[$y][$width - 8] = "\xc0";
|
|---|
| 2544 | $frame[$yOffset][7] = "\xc0";
|
|---|
| 2545 | ++$yOffset;
|
|---|
| 2546 | }
|
|---|
| 2547 | $setPattern = str_repeat("\xc0", 8);
|
|---|
| 2548 | $frame = $this->qrstrset($frame, 0, 7, $setPattern);
|
|---|
| 2549 | $frame = $this->qrstrset($frame, $width-8, 7, $setPattern);
|
|---|
| 2550 | $frame = $this->qrstrset($frame, 0, $width - 8, $setPattern);
|
|---|
| 2551 | // Format info
|
|---|
| 2552 | $setPattern = str_repeat("\x84", 9);
|
|---|
| 2553 | $frame = $this->qrstrset($frame, 0, 8, $setPattern);
|
|---|
| 2554 | $frame = $this->qrstrset($frame, $width - 8, 8, $setPattern, 8);
|
|---|
| 2555 | $yOffset = $width - 8;
|
|---|
| 2556 | for ($y=0; $y < 8; ++$y,++$yOffset) {
|
|---|
| 2557 | $frame[$y][8] = "\x84";
|
|---|
| 2558 | $frame[$yOffset][8] = "\x84";
|
|---|
| 2559 | }
|
|---|
| 2560 | // Timing pattern
|
|---|
| 2561 | $wo = $width - 15;
|
|---|
| 2562 | for ($i=1; $i < $wo; ++$i) {
|
|---|
| 2563 | $frame[6][7+$i] = chr(0x90 | ($i & 1));
|
|---|
| 2564 | $frame[7+$i][6] = chr(0x90 | ($i & 1));
|
|---|
| 2565 | }
|
|---|
| 2566 | // Alignment pattern
|
|---|
| 2567 | $frame = $this->putAlignmentPattern($version, $frame, $width);
|
|---|
| 2568 | // Version information
|
|---|
| 2569 | if ($version >= 7) {
|
|---|
| 2570 | $vinf = $this->getVersionPattern($version);
|
|---|
| 2571 | $v = $vinf;
|
|---|
| 2572 | for ($x=0; $x<6; ++$x) {
|
|---|
| 2573 | for ($y=0; $y<3; ++$y) {
|
|---|
| 2574 | $frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
|
|---|
| 2575 | $v = $v >> 1;
|
|---|
| 2576 | }
|
|---|
| 2577 | }
|
|---|
| 2578 | $v = $vinf;
|
|---|
| 2579 | for ($y=0; $y<6; ++$y) {
|
|---|
| 2580 | for ($x=0; $x<3; ++$x) {
|
|---|
| 2581 | $frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
|
|---|
| 2582 | $v = $v >> 1;
|
|---|
| 2583 | }
|
|---|
| 2584 | }
|
|---|
| 2585 | }
|
|---|
| 2586 | // and a little bit...
|
|---|
| 2587 | $frame[$width - 8][8] = "\x81";
|
|---|
| 2588 | return $frame;
|
|---|
| 2589 | }
|
|---|
| 2590 |
|
|---|
| 2591 | /**
|
|---|
| 2592 | * Set new frame for the specified version.
|
|---|
| 2593 | * @param $version (int) version
|
|---|
| 2594 | * @return Array of unsigned char.
|
|---|
| 2595 | */
|
|---|
| 2596 | protected function newFrame($version) {
|
|---|
| 2597 | if (($version < 1) OR ($version > QRSPEC_VERSION_MAX)) {
|
|---|
| 2598 | return NULL;
|
|---|
| 2599 | }
|
|---|
| 2600 | if (!isset($this->frames[$version])) {
|
|---|
| 2601 | $this->frames[$version] = $this->createFrame($version);
|
|---|
| 2602 | }
|
|---|
| 2603 | if (is_null($this->frames[$version])) {
|
|---|
| 2604 | return NULL;
|
|---|
| 2605 | }
|
|---|
| 2606 | return $this->frames[$version];
|
|---|
| 2607 | }
|
|---|
| 2608 |
|
|---|
| 2609 | /**
|
|---|
| 2610 | * Return block number 0
|
|---|
| 2611 | * @param $spec (array)
|
|---|
| 2612 | * @return int value
|
|---|
| 2613 | */
|
|---|
| 2614 | protected function rsBlockNum($spec) {
|
|---|
| 2615 | return ($spec[0] + $spec[3]);
|
|---|
| 2616 | }
|
|---|
| 2617 |
|
|---|
| 2618 | /**
|
|---|
| 2619 | * Return block number 1
|
|---|
| 2620 | * @param $spec (array)
|
|---|
| 2621 | * @return int value
|
|---|
| 2622 | */
|
|---|
| 2623 | protected function rsBlockNum1($spec) {
|
|---|
| 2624 | return $spec[0];
|
|---|
| 2625 | }
|
|---|
| 2626 |
|
|---|
| 2627 | /**
|
|---|
| 2628 | * Return data codes 1
|
|---|
| 2629 | * @param $spec (array)
|
|---|
| 2630 | * @return int value
|
|---|
| 2631 | */
|
|---|
| 2632 | protected function rsDataCodes1($spec) {
|
|---|
| 2633 | return $spec[1];
|
|---|
| 2634 | }
|
|---|
| 2635 |
|
|---|
| 2636 | /**
|
|---|
| 2637 | * Return ecc codes 1
|
|---|
| 2638 | * @param $spec (array)
|
|---|
| 2639 | * @return int value
|
|---|
| 2640 | */
|
|---|
| 2641 | protected function rsEccCodes1($spec) {
|
|---|
| 2642 | return $spec[2];
|
|---|
| 2643 | }
|
|---|
| 2644 |
|
|---|
| 2645 | /**
|
|---|
| 2646 | * Return block number 2
|
|---|
| 2647 | * @param $spec (array)
|
|---|
| 2648 | * @return int value
|
|---|
| 2649 | */
|
|---|
| 2650 | protected function rsBlockNum2($spec) {
|
|---|
| 2651 | return $spec[3];
|
|---|
| 2652 | }
|
|---|
| 2653 |
|
|---|
| 2654 | /**
|
|---|
| 2655 | * Return data codes 2
|
|---|
| 2656 | * @param $spec (array)
|
|---|
| 2657 | * @return int value
|
|---|
| 2658 | */
|
|---|
| 2659 | protected function rsDataCodes2($spec) {
|
|---|
| 2660 | return $spec[4];
|
|---|
| 2661 | }
|
|---|
| 2662 |
|
|---|
| 2663 | /**
|
|---|
| 2664 | * Return ecc codes 2
|
|---|
| 2665 | * @param $spec (array)
|
|---|
| 2666 | * @return int value
|
|---|
| 2667 | */
|
|---|
| 2668 | protected function rsEccCodes2($spec) {
|
|---|
| 2669 | return $spec[2];
|
|---|
| 2670 | }
|
|---|
| 2671 |
|
|---|
| 2672 | /**
|
|---|
| 2673 | * Return data length
|
|---|
| 2674 | * @param $spec (array)
|
|---|
| 2675 | * @return int value
|
|---|
| 2676 | */
|
|---|
| 2677 | protected function rsDataLength($spec) {
|
|---|
| 2678 | return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);
|
|---|
| 2679 | }
|
|---|
| 2680 |
|
|---|
| 2681 | /**
|
|---|
| 2682 | * Return ecc length
|
|---|
| 2683 | * @param $spec (array)
|
|---|
| 2684 | * @return int value
|
|---|
| 2685 | */
|
|---|
| 2686 | protected function rsEccLength($spec) {
|
|---|
| 2687 | return ($spec[0] + $spec[3]) * $spec[2];
|
|---|
| 2688 | }
|
|---|
| 2689 |
|
|---|
| 2690 | // - - - - - - - - - - - - - - - - - - - - - - - - -
|
|---|
| 2691 |
|
|---|
| 2692 | // QRrs
|
|---|
| 2693 |
|
|---|
| 2694 | /**
|
|---|
| 2695 | * Initialize a Reed-Solomon codec and add it to existing rsitems
|
|---|
| 2696 | * @param $symsize (int) symbol size, bits
|
|---|
| 2697 | * @param $gfpoly (int) Field generator polynomial coefficients
|
|---|
| 2698 | * @param $fcr (int) first root of RS code generator polynomial, index form
|
|---|
| 2699 | * @param $prim (int) primitive element to generate polynomial roots
|
|---|
| 2700 | * @param $nroots (int) RS code generator polynomial degree (number of roots)
|
|---|
| 2701 | * @param $pad (int) padding bytes at front of shortened block
|
|---|
| 2702 | * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
|
|---|
| 2703 | */
|
|---|
| 2704 | protected function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
|
|---|
| 2705 | foreach ($this->rsitems as $rs) {
|
|---|
| 2706 | if (($rs['pad'] != $pad) OR ($rs['nroots'] != $nroots) OR ($rs['mm'] != $symsize)
|
|---|
| 2707 | OR ($rs['gfpoly'] != $gfpoly) OR ($rs['fcr'] != $fcr) OR ($rs['prim'] != $prim)) {
|
|---|
| 2708 | continue;
|
|---|
| 2709 | }
|
|---|
| 2710 | return $rs;
|
|---|
| 2711 | }
|
|---|
| 2712 | $rs = $this->init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
|
|---|
| 2713 | array_unshift($this->rsitems, $rs);
|
|---|
| 2714 | return $rs;
|
|---|
| 2715 | }
|
|---|
| 2716 |
|
|---|
| 2717 | // - - - - - - - - - - - - - - - - - - - - - - - - -
|
|---|
| 2718 |
|
|---|
| 2719 | // QRrsItem
|
|---|
| 2720 |
|
|---|
| 2721 | /**
|
|---|
| 2722 | * modnn
|
|---|
| 2723 | * @param $rs (array) RS values
|
|---|
| 2724 | * @param $x (int) X position
|
|---|
| 2725 | * @return int X osition
|
|---|
| 2726 | */
|
|---|
| 2727 | protected function modnn($rs, $x) {
|
|---|
| 2728 | while ($x >= $rs['nn']) {
|
|---|
| 2729 | $x -= $rs['nn'];
|
|---|
| 2730 | $x = ($x >> $rs['mm']) + ($x & $rs['nn']);
|
|---|
| 2731 | }
|
|---|
| 2732 | return $x;
|
|---|
| 2733 | }
|
|---|
| 2734 |
|
|---|
| 2735 | /**
|
|---|
| 2736 | * Initialize a Reed-Solomon codec and returns an array of values.
|
|---|
| 2737 | * @param $symsize (int) symbol size, bits
|
|---|
| 2738 | * @param $gfpoly (int) Field generator polynomial coefficients
|
|---|
| 2739 | * @param $fcr (int) first root of RS code generator polynomial, index form
|
|---|
| 2740 | * @param $prim (int) primitive element to generate polynomial roots
|
|---|
| 2741 | * @param $nroots (int) RS code generator polynomial degree (number of roots)
|
|---|
| 2742 | * @param $pad (int) padding bytes at front of shortened block
|
|---|
| 2743 | * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
|
|---|
| 2744 | */
|
|---|
| 2745 | protected function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
|
|---|
| 2746 | // Based on Reed solomon encoder by Phil Karn, KA9Q (GNU-LGPLv2)
|
|---|
| 2747 | $rs = null;
|
|---|
| 2748 | // Check parameter ranges
|
|---|
| 2749 | if (($symsize < 0) OR ($symsize > 8)) {
|
|---|
| 2750 | return $rs;
|
|---|
| 2751 | }
|
|---|
| 2752 | if (($fcr < 0) OR ($fcr >= (1<<$symsize))) {
|
|---|
| 2753 | return $rs;
|
|---|
| 2754 | }
|
|---|
| 2755 | if (($prim <= 0) OR ($prim >= (1<<$symsize))) {
|
|---|
| 2756 | return $rs;
|
|---|
| 2757 | }
|
|---|
| 2758 | if (($nroots < 0) OR ($nroots >= (1<<$symsize))) {
|
|---|
| 2759 | return $rs;
|
|---|
| 2760 | }
|
|---|
| 2761 | if (($pad < 0) OR ($pad >= ((1<<$symsize) -1 - $nroots))) {
|
|---|
| 2762 | return $rs;
|
|---|
| 2763 | }
|
|---|
| 2764 | $rs = array();
|
|---|
| 2765 | $rs['mm'] = $symsize;
|
|---|
| 2766 | $rs['nn'] = (1 << $symsize) - 1;
|
|---|
| 2767 | $rs['pad'] = $pad;
|
|---|
| 2768 | $rs['alpha_to'] = array_fill(0, ($rs['nn'] + 1), 0);
|
|---|
| 2769 | $rs['index_of'] = array_fill(0, ($rs['nn'] + 1), 0);
|
|---|
| 2770 | // PHP style macro replacement ;)
|
|---|
| 2771 | $NN =& $rs['nn'];
|
|---|
| 2772 | $A0 =& $NN;
|
|---|
| 2773 | // Generate Galois field lookup tables
|
|---|
| 2774 | $rs['index_of'][0] = $A0; // log(zero) = -inf
|
|---|
| 2775 | $rs['alpha_to'][$A0] = 0; // alpha**-inf = 0
|
|---|
| 2776 | $sr = 1;
|
|---|
| 2777 | for ($i=0; $i<$rs['nn']; ++$i) {
|
|---|
| 2778 | $rs['index_of'][$sr] = $i;
|
|---|
| 2779 | $rs['alpha_to'][$i] = $sr;
|
|---|
| 2780 | $sr <<= 1;
|
|---|
| 2781 | if ($sr & (1 << $symsize)) {
|
|---|
| 2782 | $sr ^= $gfpoly;
|
|---|
| 2783 | }
|
|---|
| 2784 | $sr &= $rs['nn'];
|
|---|
| 2785 | }
|
|---|
| 2786 | if ($sr != 1) {
|
|---|
| 2787 | // field generator polynomial is not primitive!
|
|---|
| 2788 | return NULL;
|
|---|
| 2789 | }
|
|---|
| 2790 | // Form RS code generator polynomial from its roots
|
|---|
| 2791 | $rs['genpoly'] = array_fill(0, ($nroots + 1), 0);
|
|---|
| 2792 | $rs['fcr'] = $fcr;
|
|---|
| 2793 | $rs['prim'] = $prim;
|
|---|
| 2794 | $rs['nroots'] = $nroots;
|
|---|
| 2795 | $rs['gfpoly'] = $gfpoly;
|
|---|
| 2796 | // Find prim-th root of 1, used in decoding
|
|---|
| 2797 | for ($iprim=1; ($iprim % $prim) != 0; $iprim += $rs['nn']) {
|
|---|
| 2798 | ; // intentional empty-body loop!
|
|---|
| 2799 | }
|
|---|
| 2800 | $rs['iprim'] = (int)($iprim / $prim);
|
|---|
| 2801 | $rs['genpoly'][0] = 1;
|
|---|
| 2802 | for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
|
|---|
| 2803 | $rs['genpoly'][$i+1] = 1;
|
|---|
| 2804 | // Multiply rs->genpoly[] by @**(root + x)
|
|---|
| 2805 | for ($j = $i; $j > 0; --$j) {
|
|---|
| 2806 | if ($rs['genpoly'][$j] != 0) {
|
|---|
| 2807 | $rs['genpoly'][$j] = $rs['genpoly'][$j-1] ^ $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][$j]] + $root)];
|
|---|
| 2808 | } else {
|
|---|
| 2809 | $rs['genpoly'][$j] = $rs['genpoly'][$j-1];
|
|---|
| 2810 | }
|
|---|
| 2811 | }
|
|---|
| 2812 | // rs->genpoly[0] can never be zero
|
|---|
| 2813 | $rs['genpoly'][0] = $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][0]] + $root)];
|
|---|
| 2814 | }
|
|---|
| 2815 | // convert rs->genpoly[] to index form for quicker encoding
|
|---|
| 2816 | for ($i = 0; $i <= $nroots; ++$i) {
|
|---|
| 2817 | $rs['genpoly'][$i] = $rs['index_of'][$rs['genpoly'][$i]];
|
|---|
| 2818 | }
|
|---|
| 2819 | return $rs;
|
|---|
| 2820 | }
|
|---|
| 2821 |
|
|---|
| 2822 | /**
|
|---|
| 2823 | * Encode a Reed-Solomon codec and returns the parity array
|
|---|
| 2824 | * @param $rs (array) RS values
|
|---|
| 2825 | * @param $data (array) data
|
|---|
| 2826 | * @param $parity (array) parity
|
|---|
| 2827 | * @return parity array
|
|---|
| 2828 | */
|
|---|
| 2829 | protected function encode_rs_char($rs, $data, $parity) {
|
|---|
| 2830 | $MM =& $rs['mm']; // bits per symbol
|
|---|
| 2831 | $NN =& $rs['nn']; // the total number of symbols in a RS block
|
|---|
| 2832 | $ALPHA_TO =& $rs['alpha_to']; // the address of an array of NN elements to convert Galois field elements in index (log) form to polynomial form
|
|---|
| 2833 | $INDEX_OF =& $rs['index_of']; // the address of an array of NN elements to convert Galois field elements in polynomial form to index (log) form
|
|---|
| 2834 | $GENPOLY =& $rs['genpoly']; // an array of NROOTS+1 elements containing the generator polynomial in index form
|
|---|
| 2835 | $NROOTS =& $rs['nroots']; // the number of roots in the RS code generator polynomial, which is the same as the number of parity symbols in a block
|
|---|
| 2836 | $FCR =& $rs['fcr']; // first consecutive root, index form
|
|---|
| 2837 | $PRIM =& $rs['prim']; // primitive element, index form
|
|---|
| 2838 | $IPRIM =& $rs['iprim']; // prim-th root of 1, index form
|
|---|
| 2839 | $PAD =& $rs['pad']; // the number of pad symbols in a block
|
|---|
| 2840 | $A0 =& $NN;
|
|---|
| 2841 | $parity = array_fill(0, $NROOTS, 0);
|
|---|
| 2842 | for ($i=0; $i < ($NN - $NROOTS - $PAD); $i++) {
|
|---|
| 2843 | $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
|
|---|
| 2844 | if ($feedback != $A0) {
|
|---|
| 2845 | // feedback term is non-zero
|
|---|
| 2846 | // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
|
|---|
| 2847 | // always be for the polynomials constructed by init_rs()
|
|---|
| 2848 | $feedback = $this->modnn($rs, $NN - $GENPOLY[$NROOTS] + $feedback);
|
|---|
| 2849 | for ($j=1; $j < $NROOTS; ++$j) {
|
|---|
| 2850 | $parity[$j] ^= $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[($NROOTS - $j)])];
|
|---|
| 2851 | }
|
|---|
| 2852 | }
|
|---|
| 2853 | // Shift
|
|---|
| 2854 | array_shift($parity);
|
|---|
| 2855 | if ($feedback != $A0) {
|
|---|
| 2856 | array_push($parity, $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[0])]);
|
|---|
| 2857 | } else {
|
|---|
| 2858 | array_push($parity, 0);
|
|---|
| 2859 | }
|
|---|
| 2860 | }
|
|---|
| 2861 | return $parity;
|
|---|
| 2862 | }
|
|---|
| 2863 |
|
|---|
| 2864 | } // end QRcode class
|
|---|
| 2865 |
|
|---|
| 2866 | //============================================================+
|
|---|
| 2867 | // END OF FILE
|
|---|
| 2868 | //============================================================+
|
|---|
