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-<?php
-//============================================================+
-// File name : qrcode.php
-// Begin : 2010-03-22
-// Last Update : 2010-03-29
-// Version : 1.0.002
-// License : GNU LGPL v.3 (http://www.gnu.org/copyleft/lesser.html)
-// ----------------------------------------------------------------------------
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 3 of the License, or any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-// or browse http://www.gnu.org/copyleft/lesser.html
-//
-// ----------------------------------------------------------------------------
-//
-// DESCRIPTION :
-//
-// Class to create QR-code arrays for TCPDF class.
-// QR Code symbol is a 2D barcode that can be scanned by
-// handy terminals such as a mobile phone with CCD.
-// The capacity of QR Code is up to 7000 digits or 4000
-// characters, and has high robustness.
-// This class supports QR Code model 2, described in
-// JIS (Japanese Industrial Standards) X0510:2004
-// or ISO/IEC 18004.
-// Currently the following features are not supported:
-// ECI and FNC1 mode, Micro QR Code, QR Code model 1,
-// Structured mode.
-//
-// This class is derived from the following projects:
-// ---------------------------------------------------------
-// "PHP QR Code encoder"
-// License: GNU-LGPLv3
-// Copyright (C) 2010 by Dominik Dzienia <deltalab at poczta dot fm>
-// http://phpqrcode.sourceforge.net/
-// https://sourceforge.net/projects/phpqrcode/
-//
-// The "PHP QR Code encoder" is based on
-// "C libqrencode library" (ver. 3.1.1)
-// License: GNU-LGPL 2.1
-// Copyright (C) 2006-2010 by Kentaro Fukuchi
-// http://megaui.net/fukuchi/works/qrencode/index.en.html
-//
-// Reed-Solomon code encoder is written by Phil Karn, KA9Q.
-// Copyright (C) 2002-2006 Phil Karn, KA9Q
-//
-// QR Code is registered trademark of DENSO WAVE INCORPORATED
-// http://www.denso-wave.com/qrcode/index-e.html
-// ---------------------------------------------------------
-//
-// Author: Nicola Asuni
-//
-// (c) Copyright 2010:
-// Nicola Asuni
-// Tecnick.com S.r.l.
-// Via della Pace, 11
-// 09044 Quartucciu (CA)
-// ITALY
-// www.tecnick.com
-// [email protected]
-//============================================================+
-
-/**
- * Class to create QR-code arrays for TCPDF class.
- * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
- * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
- * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
- * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
- *
- * 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).
- * Please read comments on this class source file for full copyright and license information.
- *
- * @package com.tecnick.tcpdf
- * @abstract Class for generating QR-code array for TCPDF.
- * @author Nicola Asuni
- * @copyright 2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - [email protected]
- * @link http://www.tcpdf.org
- * @license http://www.gnu.org/copyleft/lesser.html LGPL
- * @version 1.0.002
- */
-
-// definitions
-if (!defined('QRCODEDEFS')) {
-
- /**
- * Indicate that definitions for this class are set
- */
- define('QRCODEDEFS', true);
-
- // -----------------------------------------------------
-
- // Encoding modes (characters which can be encoded in QRcode)
-
- /**
- * Encoding mode
- */
- define('QR_MODE_NL', -1);
-
- /**
- * Encoding mode numeric (0-9). 3 characters are encoded to 10bit length. In theory, 7089 characters or less can be stored in a QRcode.
- */
- define('QR_MODE_NM', 0);
-
- /**
- * 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.
- */
- define('QR_MODE_AN', 1);
-
- /**
- * Encoding mode 8bit byte data. In theory, 2953 characters or less can be stored in a QRcode.
- */
- define('QR_MODE_8B', 2);
-
- /**
- * 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.
- */
- define('QR_MODE_KJ', 3);
-
- /**
- * Encoding mode STRUCTURED (currently unsupported)
- */
- define('QR_MODE_ST', 4);
-
- // -----------------------------------------------------
-
- // Levels of error correction.
- // QRcode has a function of an error correcting for miss reading that white is black.
- // Error correcting is defined in 4 level as below.
-
- /**
- * Error correction level L : About 7% or less errors can be corrected.
- */
- define('QR_ECLEVEL_L', 0);
-
- /**
- * Error correction level M : About 15% or less errors can be corrected.
- */
- define('QR_ECLEVEL_M', 1);
-
- /**
- * Error correction level Q : About 25% or less errors can be corrected.
- */
- define('QR_ECLEVEL_Q', 2);
-
- /**
- * Error correction level H : About 30% or less errors can be corrected.
- */
- define('QR_ECLEVEL_H', 3);
-
- // -----------------------------------------------------
-
- // 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.
-
- /**
- * Maximum QR Code version.
- */
- define('QRSPEC_VERSION_MAX', 40);
-
- /**
- * Maximum matrix size for maximum version (version 40 is 177*177 matrix).
- */
- define('QRSPEC_WIDTH_MAX', 177);
-
- // -----------------------------------------------------
-
- /**
- * Matrix index to get width from $capacity array.
- */
- define('QRCAP_WIDTH', 0);
-
- /**
- * Matrix index to get number of words from $capacity array.
- */
- define('QRCAP_WORDS', 1);
-
- /**
- * Matrix index to get remainder from $capacity array.
- */
- define('QRCAP_REMINDER', 2);
-
- /**
- * Matrix index to get error correction level from $capacity array.
- */
- define('QRCAP_EC', 3);
-
- // -----------------------------------------------------
-
- // Structure (currently usupported)
-
- /**
- * Number of header bits for structured mode
- */
- define('STRUCTURE_HEADER_BITS', 20);
-
- /**
- * Max number of symbols for structured mode
- */
- define('MAX_STRUCTURED_SYMBOLS', 16);
-
- // -----------------------------------------------------
-
- // Masks
-
- /**
- * Down point base value for case 1 mask pattern (concatenation of same color in a line or a column)
- */
- define('N1', 3);
-
- /**
- * Down point base value for case 2 mask pattern (module block of same color)
- */
- define('N2', 3);
-
- /**
- * 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)
- */
- define('N3', 40);
-
- /**
- * Down point base value for case 4 mask pattern (ration of dark modules in whole)
- */
- define('N4', 10);
-
- // -----------------------------------------------------
-
- // Optimization settings
-
- /**
- * if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
- */
- define('QR_FIND_BEST_MASK', true);
-
- /**
- * if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
- */
- define('QR_FIND_FROM_RANDOM', 2);
-
- /**
- * when QR_FIND_BEST_MASK === false
- */
- define('QR_DEFAULT_MASK', 2);
-
- // -----------------------------------------------------
-
-} // end of definitions
-
-// #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#
-
-if (!class_exists('QRcode', false)) {
-
- // for compaibility with PHP4
- if (!function_exists('str_split')) {
- /**
- * Convert a string to an array (needed for PHP4 compatibility)
- * @param string $string The input string.
- * @param int $split_length Maximum length of the chunk.
- * @return If the optional split_length parameter is specified, the returned array will be broken down into chunks with each being split_length in length, otherwise each chunk will be one character in length. FALSE is returned if split_length is less than 1. If the split_length length exceeds the length of string , the entire string is returned as the first (and only) array element.
- */
- function str_split($string, $split_length=1) {
- if ((strlen($string) > $split_length) OR (!$split_length)) {
- do {
- $c = strlen($string);
- $parts[] = substr($string, 0, $split_length);
- $string = substr($string, $split_length);
- } while ($string !== false);
- } else {
- $parts = array($string);
- }
- return $parts;
- }
- }
-
- // #####################################################
-
- /**
- * Class to create QR-code arrays for TCPDF class.
- * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
- * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
- * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
- * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
- *
- * 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).
- * Please read comments on this class source file for full copyright and license information.
- *
- * @name QRcode
- * @package com.tecnick.tcpdf
- * @abstract Class for generating QR-code array for TCPDF.
- * @author Nicola Asuni
- * @copyright 2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - [email protected]
- * @link http://www.tcpdf.org
- * @license http://www.gnu.org/copyleft/lesser.html LGPL
- * @version 1.0.002
- */
- class QRcode {
-
- /**
- * @var barcode array to be returned which is readable by TCPDF
- * @access protected
- */
- protected $barcode_array = array();
-
- /**
- * @var 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.
- * @access protected
- */
- protected $version = 0;
-
- /**
- * @var Levels of error correction. See definitions for possible values.
- * @access protected
- */
- protected $level = QR_ECLEVEL_L;
-
- /**
- * @var Encoding mode
- * @access protected
- */
- protected $hint = QR_MODE_8B;
-
- /**
- * @var if true the input string will be converted to uppercase
- * @access protected
- */
- protected $casesensitive = true;
-
- /**
- * @var structured QR code (not supported yet)
- * @access protected
- */
- protected $structured = 0;
-
- /**
- * @var mask data
- * @access protected
- */
- protected $data;
-
- // FrameFiller
-
- /**
- * @var width
- * @access protected
- */
- protected $width;
-
- /**
- * @var frame
- * @access protected
- */
- protected $frame;
-
- /**
- * @var X position of bit
- * @access protected
- */
- protected $x;
-
- /**
- * @var Y position of bit
- * @access protected
- */
- protected $y;
-
- /**
- * @var direction
- * @access protected
- */
- protected $dir;
-
- /**
- * @var single bit
- * @access protected
- */
- protected $bit;
-
- // ---- QRrawcode ----
-
- /**
- * @var data code
- * @access protected
- */
- protected $datacode = array();
-
- /**
- * @var error correction code
- * @access protected
- */
- protected $ecccode = array();
-
- /**
- * @var blocks
- * @access protected
- */
- protected $blocks;
-
- /**
- * @var Reed-Solomon blocks
- * @access protected
- */
- protected $rsblocks = array(); //of RSblock
-
- /**
- * @var counter
- * @access protected
- */
- protected $count;
-
- /**
- * @var data length
- * @access protected
- */
- protected $dataLength;
-
- /**
- * @var error correction length
- * @access protected
- */
- protected $eccLength;
-
- /**
- * @var b1
- * @access protected
- */
- protected $b1;
-
- // ---- QRmask ----
-
- /**
- * @var run length
- * @access protected
- */
- protected $runLength = array();
-
- // ---- QRsplit ----
-
- /**
- * @var input data string
- * @access protected
- */
- protected $dataStr = '';
-
- /**
- * @var input items
- * @access protected
- */
- protected $items;
-
- // Reed-Solomon items
-
- /**
- * @var Reed-Solomon items
- * @access protected
- */
- protected $rsitems = array();
-
- /**
- * @var array of frames
- * @access protected
- */
- protected $frames = array();
-
- /**
- * @var alphabet-numeric convesion table
- * @access protected
- */
- protected $anTable = array(
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
- 36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43, //
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 44, -1, -1, -1, -1, -1, //
- -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, //
- 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, //
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 //
- );
-
- /**
- * @var array Table of the capacity of symbols
- * See Table 1 (pp.13) and Table 12-16 (pp.30-36), JIS X0510:2004.
- * @access protected
- */
- protected $capacity = array(
- array( 0, 0, 0, array( 0, 0, 0, 0)), //
- array( 21, 26, 0, array( 7, 10, 13, 17)), // 1
- array( 25, 44, 7, array( 10, 16, 22, 28)), //
- array( 29, 70, 7, array( 15, 26, 36, 44)), //
- array( 33, 100, 7, array( 20, 36, 52, 64)), //
- array( 37, 134, 7, array( 26, 48, 72, 88)), // 5
- array( 41, 172, 7, array( 36, 64, 96, 112)), //
- array( 45, 196, 0, array( 40, 72, 108, 130)), //
- array( 49, 242, 0, array( 48, 88, 132, 156)), //
- array( 53, 292, 0, array( 60, 110, 160, 192)), //
- array( 57, 346, 0, array( 72, 130, 192, 224)), // 10
- array( 61, 404, 0, array( 80, 150, 224, 264)), //
- array( 65, 466, 0, array( 96, 176, 260, 308)), //
- array( 69, 532, 0, array( 104, 198, 288, 352)), //
- array( 73, 581, 3, array( 120, 216, 320, 384)), //
- array( 77, 655, 3, array( 132, 240, 360, 432)), // 15
- array( 81, 733, 3, array( 144, 280, 408, 480)), //
- array( 85, 815, 3, array( 168, 308, 448, 532)), //
- array( 89, 901, 3, array( 180, 338, 504, 588)), //
- array( 93, 991, 3, array( 196, 364, 546, 650)), //
- array( 97, 1085, 3, array( 224, 416, 600, 700)), // 20
- array(101, 1156, 4, array( 224, 442, 644, 750)), //
- array(105, 1258, 4, array( 252, 476, 690, 816)), //
- array(109, 1364, 4, array( 270, 504, 750, 900)), //
- array(113, 1474, 4, array( 300, 560, 810, 960)), //
- array(117, 1588, 4, array( 312, 588, 870, 1050)), // 25
- array(121, 1706, 4, array( 336, 644, 952, 1110)), //
- array(125, 1828, 4, array( 360, 700, 1020, 1200)), //
- array(129, 1921, 3, array( 390, 728, 1050, 1260)), //
- array(133, 2051, 3, array( 420, 784, 1140, 1350)), //
- array(137, 2185, 3, array( 450, 812, 1200, 1440)), // 30
- array(141, 2323, 3, array( 480, 868, 1290, 1530)), //
- array(145, 2465, 3, array( 510, 924, 1350, 1620)), //
- array(149, 2611, 3, array( 540, 980, 1440, 1710)), //
- array(153, 2761, 3, array( 570, 1036, 1530, 1800)), //
- array(157, 2876, 0, array( 570, 1064, 1590, 1890)), // 35
- array(161, 3034, 0, array( 600, 1120, 1680, 1980)), //
- array(165, 3196, 0, array( 630, 1204, 1770, 2100)), //
- array(169, 3362, 0, array( 660, 1260, 1860, 2220)), //
- array(173, 3532, 0, array( 720, 1316, 1950, 2310)), //
- array(177, 3706, 0, array( 750, 1372, 2040, 2430)) // 40
- );
-
- /**
- * @var array Length indicator
- * @access protected
- */
- protected $lengthTableBits = array(
- array(10, 12, 14),
- array( 9, 11, 13),
- array( 8, 16, 16),
- array( 8, 10, 12)
- );
-
- /**
- * @var array Table of the error correction code (Reed-Solomon block)
- * See Table 12-16 (pp.30-36), JIS X0510:2004.
- * @access protected
- */
- protected $eccTable = array(
- array(array( 0, 0), array( 0, 0), array( 0, 0), array( 0, 0)), //
- array(array( 1, 0), array( 1, 0), array( 1, 0), array( 1, 0)), // 1
- array(array( 1, 0), array( 1, 0), array( 1, 0), array( 1, 0)), //
- array(array( 1, 0), array( 1, 0), array( 2, 0), array( 2, 0)), //
- array(array( 1, 0), array( 2, 0), array( 2, 0), array( 4, 0)), //
- array(array( 1, 0), array( 2, 0), array( 2, 2), array( 2, 2)), // 5
- array(array( 2, 0), array( 4, 0), array( 4, 0), array( 4, 0)), //
- array(array( 2, 0), array( 4, 0), array( 2, 4), array( 4, 1)), //
- array(array( 2, 0), array( 2, 2), array( 4, 2), array( 4, 2)), //
- array(array( 2, 0), array( 3, 2), array( 4, 4), array( 4, 4)), //
- array(array( 2, 2), array( 4, 1), array( 6, 2), array( 6, 2)), // 10
- array(array( 4, 0), array( 1, 4), array( 4, 4), array( 3, 8)), //
- array(array( 2, 2), array( 6, 2), array( 4, 6), array( 7, 4)), //
- array(array( 4, 0), array( 8, 1), array( 8, 4), array(12, 4)), //
- array(array( 3, 1), array( 4, 5), array(11, 5), array(11, 5)), //
- array(array( 5, 1), array( 5, 5), array( 5, 7), array(11, 7)), // 15
- array(array( 5, 1), array( 7, 3), array(15, 2), array( 3, 13)), //
- array(array( 1, 5), array(10, 1), array( 1, 15), array( 2, 17)), //
- array(array( 5, 1), array( 9, 4), array(17, 1), array( 2, 19)), //
- array(array( 3, 4), array( 3, 11), array(17, 4), array( 9, 16)), //
- array(array( 3, 5), array( 3, 13), array(15, 5), array(15, 10)), // 20
- array(array( 4, 4), array(17, 0), array(17, 6), array(19, 6)), //
- array(array( 2, 7), array(17, 0), array( 7, 16), array(34, 0)), //
- array(array( 4, 5), array( 4, 14), array(11, 14), array(16, 14)), //
- array(array( 6, 4), array( 6, 14), array(11, 16), array(30, 2)), //
- array(array( 8, 4), array( 8, 13), array( 7, 22), array(22, 13)), // 25
- array(array(10, 2), array(19, 4), array(28, 6), array(33, 4)), //
- array(array( 8, 4), array(22, 3), array( 8, 26), array(12, 28)), //
- array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)), //
- array(array( 7, 7), array(21, 7), array( 1, 37), array(19, 26)), //
- array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), // 30
- array(array(13, 3), array( 2, 29), array(42, 1), array(23, 28)), //
- array(array(17, 0), array(10, 23), array(10, 35), array(19, 35)), //
- array(array(17, 1), array(14, 21), array(29, 19), array(11, 46)), //
- array(array(13, 6), array(14, 23), array(44, 7), array(59, 1)), //
- array(array(12, 7), array(12, 26), array(39, 14), array(22, 41)), // 35
- array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)), //
- array(array(17, 4), array(29, 14), array(49, 10), array(24, 46)), //
- array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)), //
- array(array(20, 4), array(40, 7), array(43, 22), array(10, 67)), //
- array(array(19, 6), array(18, 31), array(34, 34), array(20, 61)) // 40
- );
-
- /**
- * @var array Positions of alignment patterns.
- * 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.
- * See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
- * @access protected
- */
- protected $alignmentPattern = array(
- array( 0, 0),
- array( 0, 0), array(18, 0), array(22, 0), array(26, 0), array(30, 0), // 1- 5
- array(34, 0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
- array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), // 11-15
- array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), // 16-20
- array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), // 21-25
- array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), // 26-30
- array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), // 31-35
- array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58) // 35-40
- );
-
- /**
- * @var array Version information pattern (BCH coded).
- * See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
- * size: [QRSPEC_VERSION_MAX - 6]
- * @access protected
- */
- protected $versionPattern = array(
- 0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d, //
- 0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9, //
- 0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75, //
- 0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64, //
- 0x27541, 0x28c69
- );
-
- /**
- * @var array Format information
- * @access protected
- */
- protected $formatInfo = array(
- array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976), //
- array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0), //
- array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed), //
- array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b) //
- );
-
-
- // -------------------------------------------------
- // -------------------------------------------------
-
-
- /**
- * This is the class constructor.
- * Creates a QRcode object
- * @param string $code code to represent using QRcode
- * @param string $eclevel error level: <ul><li>L : About 7% or less errors can be corrected.</li><li>M : About 15% or less errors can be corrected.</li><li>Q : About 25% or less errors can be corrected.</li><li>H : About 30% or less errors can be corrected.</li></ul>
- * @access public
- * @since 1.0.000
- */
- public function __construct($code, $eclevel = 'L') {
- $barcode_array = array();
- if ((is_null($code)) OR ($code == '\0') OR ($code == '')) {
- return false;
- }
- // set error correction level
- $this->level = array_search($eclevel, array('L', 'M', 'Q', 'H'));
- if ($this->level === false) {
- $this->level = QR_ECLEVEL_L;
- }
- if (($this->hint != QR_MODE_8B) AND ($this->hint != QR_MODE_KJ)) {
- return false;
- }
- if (($this->version < 0) OR ($this->version > QRSPEC_VERSION_MAX)) {
- return false;
- }
- $this->items = array();
- $this->encodeString($code);
- $qrTab = $this->binarize($this->data);
- $size = count($qrTab);
- $barcode_array['num_rows'] = $size;
- $barcode_array['num_cols'] = $size;
- $barcode_array['bcode'] = array();
- foreach ($qrTab as $line) {
- $arrAdd = array();
- foreach (str_split($line) as $char) {
- $arrAdd[] = ($char=='1')?1:0;
- }
- $barcode_array['bcode'][] = $arrAdd;
- }
- $this->barcode_array = $barcode_array;
- }
-
- /**
- * Returns a barcode array which is readable by TCPDF
- * @return array barcode array readable by TCPDF;
- * @access public
- */
- public function getBarcodeArray() {
- return $this->barcode_array;
- }
-
- /**
- * Convert the frame in binary form
- * @param array $frame array to binarize
- * @return array frame in binary form
- */
- protected function binarize($frame) {
- $len = count($frame);
- // the frame is square (width = height)
- foreach ($frame as &$frameLine) {
- for ($i=0; $i<$len; $i++) {
- $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
- }
- }
- return $frame;
- }
-
- /**
- * Encode the input string to QR code
- * @param string $string input string to encode
- */
- protected function encodeString($string) {
- $this->dataStr = $string;
- if (!$this->casesensitive) {
- $this->toUpper();
- }
- $ret = $this->splitString();
- if ($ret < 0) {
- return NULL;
- }
- $this->encodeMask(-1);
- }
-
- /**
- * Encode mask
- * @param int $mask masking mode
- */
- protected function encodeMask($mask) {
- $spec = array(0, 0, 0, 0, 0);
- $this->datacode = $this->getByteStream($this->items);
- if (is_null($this->datacode)) {
- return NULL;
- }
- $spec = $this->getEccSpec($this->version, $this->level, $spec);
- $this->b1 = $this->rsBlockNum1($spec);
- $this->dataLength = $this->rsDataLength($spec);
- $this->eccLength = $this->rsEccLength($spec);
- $this->ecccode = array_fill(0, $this->eccLength, 0);
- $this->blocks = $this->rsBlockNum($spec);
- $ret = $this->init($spec);
- if ($ret < 0) {
- return NULL;
- }
- $this->count = 0;
- $this->width = $this->getWidth($this->version);
- $this->frame = $this->newFrame($this->version);
- $this->x = $this->width - 1;
- $this->y = $this->width - 1;
- $this->dir = -1;
- $this->bit = -1;
- // inteleaved data and ecc codes
- for ($i=0; $i < ($this->dataLength + $this->eccLength); $i++) {
- $code = $this->getCode();
- $bit = 0x80;
- for ($j=0; $j<8; $j++) {
- $addr = $this->getNextPosition();
- $this->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
- $bit = $bit >> 1;
- }
- }
- // remainder bits
- $j = $this->getRemainder($this->version);
- for ($i=0; $i<$j; $i++) {
- $addr = $this->getNextPosition();
- $this->setFrameAt($addr, 0x02);
- }
- // masking
- $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
- if ($mask < 0) {
- if (QR_FIND_BEST_MASK) {
- $masked = $this->mask($this->width, $this->frame, $this->level);
- } else {
- $masked = $this->makeMask($this->width, $this->frame, (intval(QR_DEFAULT_MASK) % 8), $this->level);
- }
- } else {
- $masked = $this->makeMask($this->width, $this->frame, $mask, $this->level);
- }
- if ($masked == NULL) {
- return NULL;
- }
- $this->data = $masked;
- }
-
- // - - - - - - - - - - - - - - - - - - - - - - - - -
-
- // FrameFiller
-
- /**
- * Set frame value at specified position
- * @param array $at x,y position
- * @param int $val value of the character to set
- */
- protected function setFrameAt($at, $val) {
- $this->frame[$at['y']][$at['x']] = chr($val);
- }
-
- /**
- * Get frame value at specified position
- * @param array $at x,y position
- * @return value at specified position
- */
- protected function getFrameAt($at) {
- return ord($this->frame[$at['y']][$at['x']]);
- }
-
- /**
- * Return the next frame position
- * @return array of x,y coordinates
- */
- protected function getNextPosition() {
- do {
- if ($this->bit == -1) {
- $this->bit = 0;
- return array('x'=>$this->x, 'y'=>$this->y);
- }
- $x = $this->x;
- $y = $this->y;
- $w = $this->width;
- if ($this->bit == 0) {
- $x--;
- $this->bit++;
- } else {
- $x++;
- $y += $this->dir;
- $this->bit--;
- }
- if ($this->dir < 0) {
- if ($y < 0) {
- $y = 0;
- $x -= 2;
- $this->dir = 1;
- if ($x == 6) {
- $x--;
- $y = 9;
- }
- }
- } else {
- if ($y == $w) {
- $y = $w - 1;
- $x -= 2;
- $this->dir = -1;
- if ($x == 6) {
- $x--;
- $y -= 8;
- }
- }
- }
- if (($x < 0) OR ($y < 0)) {
- return NULL;
- }
- $this->x = $x;
- $this->y = $y;
- } while(ord($this->frame[$y][$x]) & 0x80);
- return array('x'=>$x, 'y'=>$y);
- }
-
- // - - - - - - - - - - - - - - - - - - - - - - - - -
-
- // QRrawcode
-
- /**
- * Initialize code.
- * @param array $spec array of ECC specification
- * @return 0 in case of success, -1 in case of error
- */
- protected function init($spec) {
- $dl = $this->rsDataCodes1($spec);
- $el = $this->rsEccCodes1($spec);
- $rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
- $blockNo = 0;
- $dataPos = 0;
- $eccPos = 0;
- $endfor = $this->rsBlockNum1($spec);
- for ($i=0; $i < $endfor; ++$i) {
- $ecc = array_slice($this->ecccode, $eccPos);
- $this->rsblocks[$blockNo] = array();
- $this->rsblocks[$blockNo]['dataLength'] = $dl;
- $this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
- $this->rsblocks[$blockNo]['eccLength'] = $el;
- $ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
- $this->rsblocks[$blockNo]['ecc'] = $ecc;
- $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
- $dataPos += $dl;
- $eccPos += $el;
- $blockNo++;
- }
- if ($this->rsBlockNum2($spec) == 0) {
- return 0;
- }
- $dl = $this->rsDataCodes2($spec);
- $el = $this->rsEccCodes2($spec);
- $rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
- if ($rs == NULL) {
- return -1;
- }
- $endfor = $this->rsBlockNum2($spec);
- for ($i=0; $i < $endfor; ++$i) {
- $ecc = array_slice($this->ecccode, $eccPos);
- $this->rsblocks[$blockNo] = array();
- $this->rsblocks[$blockNo]['dataLength'] = $dl;
- $this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
- $this->rsblocks[$blockNo]['eccLength'] = $el;
- $ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
- $this->rsblocks[$blockNo]['ecc'] = $ecc;
- $this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
- $dataPos += $dl;
- $eccPos += $el;
- $blockNo++;
- }
- return 0;
- }
-
- /**
- * Return Reed-Solomon block code.
- * @return array rsblocks
- */
- protected function getCode() {
- if ($this->count < $this->dataLength) {
- $row = $this->count % $this->blocks;
- $col = $this->count / $this->blocks;
- if ($col >= $this->rsblocks[0]['dataLength']) {
- $row += $this->b1;
- }
- $ret = $this->rsblocks[$row]['data'][$col];
- } elseif ($this->count < $this->dataLength + $this->eccLength) {
- $row = ($this->count - $this->dataLength) % $this->blocks;
- $col = ($this->count - $this->dataLength) / $this->blocks;
- $ret = $this->rsblocks[$row]['ecc'][$col];
- } else {
- return 0;
- }
- $this->count++;
- return $ret;
- }
-
- // - - - - - - - - - - - - - - - - - - - - - - - - -
-
- // QRmask
-
- /**
- * Write Format Information on frame and returns the number of black bits
- * @param int $width frame width
- * @param array $frame frame
- * @param array $mask masking mode
- * @param int $level error correction level
- * @return int blacks
- */
- protected function writeFormatInformation($width, &$frame, $mask, $level) {
- $blacks = 0;
- $format = $this->getFormatInfo($mask, $level);
- for ($i=0; $i<8; ++$i) {
- if ($format & 1) {
- $blacks += 2;
- $v = 0x85;
- } else {
- $v = 0x84;
- }
- $frame[8][$width - 1 - $i] = chr($v);
- if ($i < 6) {
- $frame[$i][8] = chr($v);
- } else {
- $frame[$i + 1][8] = chr($v);
- }
- $format = $format >> 1;
- }
- for ($i=0; $i<7; ++$i) {
- if ($format & 1) {
- $blacks += 2;
- $v = 0x85;
- } else {
- $v = 0x84;
- }
- $frame[$width - 7 + $i][8] = chr($v);
- if ($i == 0) {
- $frame[8][7] = chr($v);
- } else {
- $frame[8][6 - $i] = chr($v);
- }
- $format = $format >> 1;
- }
- return $blacks;
- }
-
- /**
- * mask0
- * @param int $x X position
- * @param int $y Y position
- * @return int mask
- */
- protected function mask0($x, $y) {
- return ($x + $y) & 1;
- }
-
- /**
- * mask1
- * @param int $x X position
- * @param int $y Y position
- * @return int mask
- */
- protected function mask1($x, $y) {
- return ($y & 1);
- }
-
- /**
- * mask2
- * @param int $x X position
- * @param int $y Y position
- * @return int mask
- */
- protected function mask2($x, $y) {
- return ($x % 3);
- }
-
- /**
- * mask3
- * @param int $x X position
- * @param int $y Y position
- * @return int mask
- */
- protected function mask3($x, $y) {
- return ($x + $y) % 3;
- }
-
- /**
- * mask4
- * @param int $x X position
- * @param int $y Y position
- * @return int mask
- */
- protected function mask4($x, $y) {
- return (((int)($y / 2)) + ((int)($x / 3))) & 1;
- }
-
- /**
- * mask5
- * @param int $x X position
- * @param int $y Y position
- * @return int mask
- */
- protected function mask5($x, $y) {
- return (($x * $y) & 1) + ($x * $y) % 3;
- }
-
- /**
- * mask6
- * @param int $x X position
- * @param int $y Y position
- * @return int mask
- */
- protected function mask6($x, $y) {
- return ((($x * $y) & 1) + ($x * $y) % 3) & 1;
- }
-
- /**
- * mask7
- * @param int $x X position
- * @param int $y Y position
- * @return int mask
- */
- protected function mask7($x, $y) {
- return ((($x * $y) % 3) + (($x + $y) & 1)) & 1;
- }
-
- /**
- * Return bitmask
- * @param int $maskNo mask number
- * @param int $width width
- * @param array $frame frame
- * @return array bitmask
- */
- protected function generateMaskNo($maskNo, $width, $frame) {
- $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
- for ($y=0; $y<$width; ++$y) {
- for ($x=0; $x<$width; ++$x) {
- if (ord($frame[$y][$x]) & 0x80) {
- $bitMask[$y][$x] = 0;
- } else {
- $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
- $bitMask[$y][$x] = ($maskFunc == 0)?1:0;
- }
- }
- }
- return $bitMask;
- }
-
- /**
- * makeMaskNo
- * @param int $maskNo
- * @param int $width
- * @param int $s
- * @param int $d
- * @param boolean $maskGenOnly
- * @return int b
- */
- protected function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly=false) {
- $b = 0;
- $bitMask = array();
- $bitMask = $this->generateMaskNo($maskNo, $width, $s);
- if ($maskGenOnly) {
- return;
- }
- $d = $s;
- for ($y=0; $y<$width; ++$y) {
- for ($x=0; $x<$width; ++$x) {
- if ($bitMask[$y][$x] == 1) {
- $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
- }
- $b += (int)(ord($d[$y][$x]) & 1);
- }
- }
- return $b;
- }
-
- /**
- * makeMask
- * @param int $width
- * @param array $frame
- * @param int $maskNo
- * @param int $level
- * @return array mask
- */
- protected function makeMask($width, $frame, $maskNo, $level) {
- $masked = array_fill(0, $width, str_repeat("\0", $width));
- $this->makeMaskNo($maskNo, $width, $frame, $masked);
- $this->writeFormatInformation($width, $masked, $maskNo, $level);
- return $masked;
- }
-
- /**
- * calcN1N3
- * @param int $length
- * @return int demerit
- */
- protected function calcN1N3($length) {
- $demerit = 0;
- for ($i=0; $i<$length; ++$i) {
- if ($this->runLength[$i] >= 5) {
- $demerit += (N1 + ($this->runLength[$i] - 5));
- }
- if ($i & 1) {
- if (($i >= 3) AND ($i < ($length-2)) AND ($this->runLength[$i] % 3 == 0)) {
- $fact = (int)($this->runLength[$i] / 3);
- if (($this->runLength[$i-2] == $fact)
- AND ($this->runLength[$i-1] == $fact)
- AND ($this->runLength[$i+1] == $fact)
- AND ($this->runLength[$i+2] == $fact)) {
- if (($this->runLength[$i-3] < 0) OR ($this->runLength[$i-3] >= (4 * $fact))) {
- $demerit += N3;
- } elseif ((($i+3) >= $length) OR ($this->runLength[$i+3] >= (4 * $fact))) {
- $demerit += N3;
- }
- }
- }
- }
- }
- return $demerit;
- }
-
- /**
- * evaluateSymbol
- * @param int $width
- * @param array $frame
- * @return int demerit
- */
- protected function evaluateSymbol($width, $frame) {
- $head = 0;
- $demerit = 0;
- for ($y=0; $y<$width; ++$y) {
- $head = 0;
- $this->runLength[0] = 1;
- $frameY = $frame[$y];
- if ($y > 0) {
- $frameYM = $frame[$y-1];
- }
- for ($x=0; $x<$width; ++$x) {
- if (($x > 0) AND ($y > 0)) {
- $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
- $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
- if (($b22 | ($w22 ^ 1)) & 1) {
- $demerit += N2;
- }
- }
- if (($x == 0) AND (ord($frameY[$x]) & 1)) {
- $this->runLength[0] = -1;
- $head = 1;
- $this->runLength[$head] = 1;
- } elseif ($x > 0) {
- if ((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
- $head++;
- $this->runLength[$head] = 1;
- } else {
- $this->runLength[$head]++;
- }
- }
- }
- $demerit += $this->calcN1N3($head+1);
- }
- for ($x=0; $x<$width; ++$x) {
- $head = 0;
- $this->runLength[0] = 1;
- for ($y=0; $y<$width; ++$y) {
- if (($y == 0) AND (ord($frame[$y][$x]) & 1)) {
- $this->runLength[0] = -1;
- $head = 1;
- $this->runLength[$head] = 1;
- } elseif ($y > 0) {
- if ((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
- $head++;
- $this->runLength[$head] = 1;
- } else {
- $this->runLength[$head]++;
- }
- }
- }
- $demerit += $this->calcN1N3($head+1);
- }
- return $demerit;
- }
-
- /**
- * mask
- * @param int $width
- * @param array $frame
- * @param int $level
- * @return array best mask
- */
- protected function mask($width, $frame, $level) {
- $minDemerit = PHP_INT_MAX;
- $bestMaskNum = 0;
- $bestMask = array();
- $checked_masks = array(0, 1, 2, 3, 4, 5, 6, 7);
- if (QR_FIND_FROM_RANDOM !== false) {
- $howManuOut = 8 - (QR_FIND_FROM_RANDOM % 9);
- for ($i = 0; $i < $howManuOut; ++$i) {
- $remPos = rand (0, count($checked_masks)-1);
- unset($checked_masks[$remPos]);
- $checked_masks = array_values($checked_masks);
- }
- }
- $bestMask = $frame;
- foreach ($checked_masks as $i) {
- $mask = array_fill(0, $width, str_repeat("\0", $width));
- $demerit = 0;
- $blacks = 0;
- $blacks = $this->makeMaskNo($i, $width, $frame, $mask);
- $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
- $blacks = (int)(100 * $blacks / ($width * $width));
- $demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
- $demerit += $this->evaluateSymbol($width, $mask);
- if ($demerit < $minDemerit) {
- $minDemerit = $demerit;
- $bestMask = $mask;
- $bestMaskNum = $i;
- }
- }
- return $bestMask;
- }
-
- // - - - - - - - - - - - - - - - - - - - - - - - - -
-
- // QRsplit
-
- /**
- * Return true if the character at specified position is a number
- * @param string $str string
- * @param int $pos characted position
- * @return boolean true of false
- */
- protected function isdigitat($str, $pos) {
- if ($pos >= strlen($str)) {
- return false;
- }
- return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
- }
-
- /**
- * Return true if the character at specified position is an alphanumeric character
- * @param string $str string
- * @param int $pos characted position
- * @return boolean true of false
- */
- protected function isalnumat($str, $pos) {
- if ($pos >= strlen($str)) {
- return false;
- }
- return ($this->lookAnTable(ord($str[$pos])) >= 0);
- }
-
- /**
- * identifyMode
- * @param int $pos
- * @return int mode
- */
- protected function identifyMode($pos) {
- if ($pos >= strlen($this->dataStr)) {
- return QR_MODE_NL;
- }
- $c = $this->dataStr[$pos];
- if ($this->isdigitat($this->dataStr, $pos)) {
- return QR_MODE_NM;
- } elseif ($this->isalnumat($this->dataStr, $pos)) {
- return QR_MODE_AN;
- } elseif ($this->hint == QR_MODE_KJ) {
- if ($pos+1 < strlen($this->dataStr)) {
- $d = $this->dataStr[$pos+1];
- $word = (ord($c) << 8) | ord($d);
- if (($word >= 0x8140 && $word <= 0x9ffc) OR ($word >= 0xe040 && $word <= 0xebbf)) {
- return QR_MODE_KJ;
- }
- }
- }
- return QR_MODE_8B;
- }
-
- /**
- * eatNum
- * @return int run
- */
- protected function eatNum() {
- $ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
- $p = 0;
- while($this->isdigitat($this->dataStr, $p)) {
- $p++;
- }
- $run = $p;
- $mode = $this->identifyMode($p);
- if ($mode == QR_MODE_8B) {
- $dif = $this->estimateBitsModeNum($run) + 4 + $ln
- + $this->estimateBitsMode8(1) // + 4 + l8
- - $this->estimateBitsMode8($run + 1); // - 4 - l8
- if ($dif > 0) {
- return $this->eat8();
- }
- }
- if ($mode == QR_MODE_AN) {
- $dif = $this->estimateBitsModeNum($run) + 4 + $ln
- + $this->estimateBitsModeAn(1) // + 4 + la
- - $this->estimateBitsModeAn($run + 1);// - 4 - la
- if ($dif > 0) {
- return $this->eatAn();
- }
- }
- $this->items = $this->appendNewInputItem($this->items, QR_MODE_NM, $run, str_split($this->dataStr));
- return $run;
- }
-
- /**
- * eatAn
- * @return int run
- */
- protected function eatAn() {
- $la = $this->lengthIndicator(QR_MODE_AN, $this->version);
- $ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
- $p = 0;
- while($this->isalnumat($this->dataStr, $p)) {
- if ($this->isdigitat($this->dataStr, $p)) {
- $q = $p;
- while($this->isdigitat($this->dataStr, $q)) {
- $q++;
- }
- $dif = $this->estimateBitsModeAn($p) // + 4 + la
- + $this->estimateBitsModeNum($q - $p) + 4 + $ln
- - $this->estimateBitsModeAn($q); // - 4 - la
- if ($dif < 0) {
- break;
- } else {
- $p = $q;
- }
- } else {
- $p++;
- }
- }
- $run = $p;
- if (!$this->isalnumat($this->dataStr, $p)) {
- $dif = $this->estimateBitsModeAn($run) + 4 + $la
- + $this->estimateBitsMode8(1) // + 4 + l8
- - $this->estimateBitsMode8($run + 1); // - 4 - l8
- if ($dif > 0) {
- return $this->eat8();
- }
- }
- $this->items = $this->appendNewInputItem($this->items, QR_MODE_AN, $run, str_split($this->dataStr));
- return $run;
- }
-
- /**
- * eatKanji
- * @return int run
- */
- protected function eatKanji() {
- $p = 0;
- while($this->identifyMode($p) == QR_MODE_KJ) {
- $p += 2;
- }
- $this->items = $this->appendNewInputItem($this->items, QR_MODE_KJ, $p, str_split($this->dataStr));
- return $p;
- }
-
- /**
- * eat8
- * @return int run
- */
- protected function eat8() {
- $la = $this->lengthIndicator(QR_MODE_AN, $this->version);
- $ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
- $p = 1;
- $dataStrLen = strlen($this->dataStr);
- while($p < $dataStrLen) {
- $mode = $this->identifyMode($p);
- if ($mode == QR_MODE_KJ) {
- break;
- }
- if ($mode == QR_MODE_NM) {
- $q = $p;
- while($this->isdigitat($this->dataStr, $q)) {
- $q++;
- }
- $dif = $this->estimateBitsMode8($p) // + 4 + l8
- + $this->estimateBitsModeNum($q - $p) + 4 + $ln
- - $this->estimateBitsMode8($q); // - 4 - l8
- if ($dif < 0) {
- break;
- } else {
- $p = $q;
- }
- } elseif ($mode == QR_MODE_AN) {
- $q = $p;
- while($this->isalnumat($this->dataStr, $q)) {
- $q++;
- }
- $dif = $this->estimateBitsMode8($p) // + 4 + l8
- + $this->estimateBitsModeAn($q - $p) + 4 + $la
- - $this->estimateBitsMode8($q); // - 4 - l8
- if ($dif < 0) {
- break;
- } else {
- $p = $q;
- }
- } else {
- $p++;
- }
- }
- $run = $p;
- $this->items = $this->appendNewInputItem($this->items, QR_MODE_8B, $run, str_split($this->dataStr));
- return $run;
- }
-
- /**
- * splitString
- */
- protected function splitString() {
- while (strlen($this->dataStr) > 0) {
- if ($this->dataStr == '') {
- return 0;
- }
- $mode = $this->identifyMode(0);
- switch ($mode) {
- case QR_MODE_NM: {
- $length = $this->eatNum();
- break;
- }
- case QR_MODE_AN: {
- $length = $this->eatAn();
- break;
- }
- case QR_MODE_KJ: {
- if ($this->hint == QR_MODE_KJ) {
- $length = $this->eatKanji();
- } else {
- $length = $this->eat8();
- }
- break;
- }
- default: {
- $length = $this->eat8();
- break;
- }
- }
- if ($length == 0) {
- return 0;
- }
- if ($length < 0) {
- return -1;
- }
- $this->dataStr = substr($this->dataStr, $length);
- }
- }
-
- /**
- * toUpper
- */
- protected function toUpper() {
- $stringLen = strlen($this->dataStr);
- $p = 0;
- while ($p < $stringLen) {
- $mode = $this->identifyMode(substr($this->dataStr, $p));
- if ($mode == QR_MODE_KJ) {
- $p += 2;
- } else {
- if ((ord($this->dataStr[$p]) >= ord('a')) AND (ord($this->dataStr[$p]) <= ord('z'))) {
- $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
- }
- $p++;
- }
- }
- return $this->dataStr;
- }
-
- // - - - - - - - - - - - - - - - - - - - - - - - - -
-
- // QRinputItem
-
- /**
- * newInputItem
- * @param int $mode
- * @param int $size
- * @param array $data
- * @param array $bstream
- * @return array input item
- */
- protected function newInputItem($mode, $size, $data, $bstream=null) {
- $setData = array_slice($data, 0, $size);
- if (count($setData) < $size) {
- $setData = array_merge($setData, array_fill(0, ($size - count($setData)), 0));
- }
- if (!$this->check($mode, $size, $setData)) {
- return NULL;
- }
- $inputitem = array();
- $inputitem['mode'] = $mode;
- $inputitem['size'] = $size;
- $inputitem['data'] = $setData;
- $inputitem['bstream'] = $bstream;
- return $inputitem;
- }
-
- /**
- * encodeModeNum
- * @param array $inputitem
- * @param int $version
- * @return array input item
- */
- protected function encodeModeNum($inputitem, $version) {
- $words = (int)($inputitem['size'] / 3);
- $inputitem['bstream'] = array();
- $val = 0x1;
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_NM, $version), $inputitem['size']);
- for ($i=0; $i < $words; ++$i) {
- $val = (ord($inputitem['data'][$i*3 ]) - ord('0')) * 100;
- $val += (ord($inputitem['data'][$i*3+1]) - ord('0')) * 10;
- $val += (ord($inputitem['data'][$i*3+2]) - ord('0'));
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 10, $val);
- }
- if ($inputitem['size'] - $words * 3 == 1) {
- $val = ord($inputitem['data'][$words*3]) - ord('0');
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
- } elseif (($inputitem['size'] - ($words * 3)) == 2) {
- $val = (ord($inputitem['data'][$words*3 ]) - ord('0')) * 10;
- $val += (ord($inputitem['data'][$words*3+1]) - ord('0'));
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 7, $val);
- }
- return $inputitem;
- }
-
- /**
- * encodeModeAn
- * @param array $inputitem
- * @param int $version
- * @return array input item
- */
- protected function encodeModeAn($inputitem, $version) {
- $words = (int)($inputitem['size'] / 2);
- $inputitem['bstream'] = array();
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x02);
- $inputitem['bstream'] = $this->appendNum(v, $this->lengthIndicator(QR_MODE_AN, $version), $inputitem['size']);
- for ($i=0; $i < $words; ++$i) {
- $val = (int)$this->lookAnTable(ord($inputitem['data'][$i*2 ])) * 45;
- $val += (int)$this->lookAnTable(ord($inputitem['data'][$i*2+1]));
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 11, $val);
- }
- if ($inputitem['size'] & 1) {
- $val = $this->lookAnTable(ord($inputitem['data'][($words * 2)]));
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 6, $val);
- }
- return $inputitem;
- }
-
- /**
- * encodeMode8
- * @param array $inputitem
- * @param int $version
- * @return array input item
- */
- protected function encodeMode8($inputitem, $version) {
- $inputitem['bstream'] = array();
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x4);
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_8B, $version), $inputitem['size']);
- for ($i=0; $i < $inputitem['size']; ++$i) {
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][$i]));
- }
- return $inputitem;
- }
-
- /**
- * encodeModeKanji
- * @param array $inputitem
- * @param int $version
- * @return array input item
- */
- protected function encodeModeKanji($inputitem, $version) {
- $inputitem['bstream'] = array();
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x8);
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_KJ, $version), (int)($inputitem['size'] / 2));
- for ($i=0; $i<$inputitem['size']; $i+=2) {
- $val = (ord($inputitem['data'][$i]) << 8) | ord($inputitem['data'][$i+1]);
- if ($val <= 0x9ffc) {
- $val -= 0x8140;
- } else {
- $val -= 0xc140;
- }
- $h = ($val >> 8) * 0xc0;
- $val = ($val & 0xff) + $h;
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 13, $val);
- }
- return $inputitem;
- }
-
- /**
- * encodeModeStructure
- * @param array $inputitem
- * @return array input item
- */
- protected function encodeModeStructure($inputitem) {
- $inputitem['bstream'] = array();
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x03);
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][1]) - 1);
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][0]) - 1);
- $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][2]));
- return $inputitem;
- }
-
- /**
- * encodeBitStream
- * @param array $inputitem
- * @param int $version
- * @return array input item
- */
- protected function encodeBitStream($inputitem, $version) {
- $inputitem['bstream'] = array();
- $words = $this->maximumWords($inputitem['mode'], $version);
- if ($inputitem['size'] > $words) {
- $st1 = $this->newInputItem($inputitem['mode'], $words, $inputitem['data']);
- $st2 = $this->newInputItem($inputitem['mode'], $inputitem['size'] - $words, array_slice($inputitem['data'], $words));
- $st1 = $this->encodeBitStream($st1, $version);
- $st2 = $this->encodeBitStream($st2, $version);
- $inputitem['bstream'] = array();
- $inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st1['bstream']);
- $inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st2['bstream']);
- } else {
- switch($inputitem['mode']) {
- case QR_MODE_NM: {
- $inputitem = $this->encodeModeNum($inputitem, $version);
- break;
- }
- case QR_MODE_AN: {
- $inputitem = $this->encodeModeAn($inputitem, $version);
- break;
- }
- case QR_MODE_8B: {
- $inputitem = $this->encodeMode8($inputitem, $version);
- break;
- }
- case QR_MODE_KJ: {
- $inputitem = $this->encodeModeKanji($inputitem, $version);
- break;
- }
- case QR_MODE_ST: {
- $inputitem = $this->encodeModeStructure($inputitem);
- break;
- }
- default: {
- break;
- }
- }
- }
- return $inputitem;
- }
-
- // - - - - - - - - - - - - - - - - - - - - - - - - -
-
- // QRinput
-
- /**
- * Append data to an input object.
- * The data is copied and appended to the input object.
- * @param array items input items
- * @param int $mode encoding mode.
- * @param int $size size of data (byte).
- * @param array $data array of input data.
- * @return items
- *
- */
- protected function appendNewInputItem($items, $mode, $size, $data) {
- $items[] = $this->newInputItem($mode, $size, $data);
- return $items;
- }
-
- /**
- * insertStructuredAppendHeader
- * @param array $items
- * @param int $size
- * @param int $index
- * @param int $parity
- * @return array items
- */
- protected function insertStructuredAppendHeader($items, $size, $index, $parity) {
- if ($size > MAX_STRUCTURED_SYMBOLS) {
- return -1;
- }
- if (($index <= 0) OR ($index > MAX_STRUCTURED_SYMBOLS)) {
- return -1;
- }
- $buf = array($size, $index, $parity);
- $entry = $this->newInputItem(QR_MODE_ST, 3, buf);
- array_unshift($items, $entry);
- return $items;
- }
-
- /**
- * calcParity
- * @param array $items
- * @return int parity
- */
- protected function calcParity($items) {
- $parity = 0;
- foreach ($items as $item) {
- if ($item['mode'] != QR_MODE_ST) {
- for ($i=$item['size']-1; $i>=0; --$i) {
- $parity ^= $item['data'][$i];
- }
- }
- }
- return $parity;
- }
-
- /**
- * checkModeNum
- * @param int $size
- * @param array $data
- * @return boolean true or false
- */
- protected function checkModeNum($size, $data) {
- for ($i=0; $i<$size; ++$i) {
- if ((ord($data[$i]) < ord('0')) OR (ord($data[$i]) > ord('9'))){
- return false;
- }
- }
- return true;
- }
-
- /**
- * estimateBitsModeNum
- * @param int $size
- * @return int number of bits
- */
- protected function estimateBitsModeNum($size) {
- $w = (int)$size / 3;
- $bits = $w * 10;
- switch($size - $w * 3) {
- case 1: {
- $bits += 4;
- break;
- }
- case 2: {
- $bits += 7;
- break;
- }
- default: {
- break;
- }
- }
- return $bits;
- }
-
- /**
- * Look up the alphabet-numeric convesion table (see JIS X0510:2004, pp.19).
- * @param int $c character value
- * @return value
- */
- protected function lookAnTable($c) {
- return (($c > 127)?-1:$this->anTable[$c]);
- }
-
- /**
- * checkModeAn
- * @param int $size
- * @param array $data
- * @return boolean true or false
- */
- protected function checkModeAn($size, $data) {
- for ($i=0; $i<$size; ++$i) {
- if ($this->lookAnTable(ord($data[$i])) == -1) {
- return false;
- }
- }
- return true;
- }
-
- /**
- * estimateBitsModeAn
- * @param int $size
- * @return int number of bits
- */
- protected function estimateBitsModeAn($size) {
- $w = (int)($size / 2);
- $bits = $w * 11;
- if ($size & 1) {
- $bits += 6;
- }
- return $bits;
- }
-
- /**
- * estimateBitsMode8
- * @param int $size
- * @return int number of bits
- */
- protected function estimateBitsMode8($size) {
- return $size * 8;
- }
-
- /**
- * estimateBitsModeKanji
- * @param int $size
- * @return int number of bits
- */
- protected function estimateBitsModeKanji($size) {
- return (int)(($size / 2) * 13);
- }
-
- /**
- * checkModeKanji
- * @param int $size
- * @param array $data
- * @return boolean true or false
- */
- protected function checkModeKanji($size, $data) {
- if ($size & 1) {
- return false;
- }
- for ($i=0; $i<$size; $i+=2) {
- $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
- if (($val < 0x8140) OR (($val > 0x9ffc) AND ($val < 0xe040)) OR ($val > 0xebbf)) {
- return false;
- }
- }
- return true;
- }
-
- /**
- * Validate the input data.
- * @param int $mode encoding mode.
- * @param int $size size of data (byte).
- * @param array data data to validate
- * @return boolean true in case of valid data, false otherwise
- */
- protected function check($mode, $size, $data) {
- if ($size <= 0) {
- return false;
- }
- switch($mode) {
- case QR_MODE_NM: {
- return $this->checkModeNum($size, $data);
- }
- case QR_MODE_AN: {
- return $this->checkModeAn($size, $data);
- }
- case QR_MODE_KJ: {
- return $this->checkModeKanji($size, $data);
- }
- case QR_MODE_8B: {
- return true;
- }
- case QR_MODE_ST: {
- return true;
- }
- default: {
- break;
- }
- }
- return false;
- }
-
- /**
- * estimateBitStreamSize
- * @param array $items
- * @param int $version
- * @return int bits
- */
- protected function estimateBitStreamSize($items, $version) {
- $bits = 0;
- if ($version == 0) {
- $version = 1;
- }
- foreach ($items as $item) {
- switch($item['mode']) {
- case QR_MODE_NM: {
- $bits = $this->estimateBitsModeNum($item['size']);
- break;
- }
- case QR_MODE_AN: {
- $bits = $this->estimateBitsModeAn($item['size']);
- break;
- }
- case QR_MODE_8B: {
- $bits = $this->estimateBitsMode8($item['size']);
- break;
- }
- case QR_MODE_KJ: {
- $bits = $this->estimateBitsModeKanji($item['size']);
- break;
- }
- case QR_MODE_ST: {
- return STRUCTURE_HEADER_BITS;
- }
- default: {
- return 0;
- }
- }
- $l = $this->lengthIndicator($item['mode'], $version);
- $m = 1 << $l;
- $num = (int)(($item['size'] + $m - 1) / $m);
- $bits += $num * (4 + $l);
- }
- return $bits;
- }
-
- /**
- * estimateVersion
- * @param array $items
- * @return int version
- */
- protected function estimateVersion($items) {
- $version = 0;
- $prev = 0;
- do {
- $prev = $version;
- $bits = $this->estimateBitStreamSize($items, $prev);
- $version = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
- if ($version < 0) {
- return -1;
- }
- } while ($version > $prev);
- return $version;
- }
-
- /**
- * lengthOfCode
- * @param int $mode
- * @param int $version
- * @param int $bits
- * @return int size
- */
- protected function lengthOfCode($mode, $version, $bits) {
- $payload = $bits - 4 - $this->lengthIndicator($mode, $version);
- switch($mode) {
- case QR_MODE_NM: {
- $chunks = (int)($payload / 10);
- $remain = $payload - $chunks * 10;
- $size = $chunks * 3;
- if ($remain >= 7) {
- $size += 2;
- } elseif ($remain >= 4) {
- $size += 1;
- }
- break;
- }
- case QR_MODE_AN: {
- $chunks = (int)($payload / 11);
- $remain = $payload - $chunks * 11;
- $size = $chunks * 2;
- if ($remain >= 6) {
- ++$size;
- }
- break;
- }
- case QR_MODE_8B: {
- $size = (int)($payload / 8);
- break;
- }
- case QR_MODE_KJ: {
- $size = (int)(($payload / 13) * 2);
- break;
- }
- case QR_MODE_ST: {
- $size = (int)($payload / 8);
- break;
- }
- default: {
- $size = 0;
- break;
- }
- }
- $maxsize = $this->maximumWords($mode, $version);
- if ($size < 0) {
- $size = 0;
- }
- if ($size > $maxsize) {
- $size = $maxsize;
- }
- return $size;
- }
-
- /**
- * createBitStream
- * @param array $items
- * @return array of items and total bits
- */
- protected function createBitStream($items) {
- $total = 0;
- foreach ($items as $key => $item) {
- $items[$key] = $this->encodeBitStream($item, $this->version);
- $bits = count($items[$key]['bstream']);
- $total += $bits;
- }
- return array($items, $total);
- }
-
- /**
- * convertData
- * @param array $items
- * @return array items
- */
- protected function convertData($items) {
- $ver = $this->estimateVersion($items);
- if ($ver > $this->version) {
- $this->version = $ver;
- }
- for (;;) {
- $cbs = $this->createBitStream($items);
- $items = $cbs[0];
- $bits = $cbs[1];
- if ($bits < 0) {
- return -1;
- }
- $ver = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
- if ($ver < 0) {
- return -1;
- } elseif ($ver > $this->version) {
- $this->version = $ver;
- } else {
- break;
- }
- }
- return $items;
- }
-
- /**
- * Append Padding Bit to bitstream
- * @param array $bstream
- * @return array bitstream
- */
- protected function appendPaddingBit($bstream) {
- $bits = count($bstream);
- $maxwords = $this->getDataLength($this->version, $this->level);
- $maxbits = $maxwords * 8;
- if ($maxbits == $bits) {
- return 0;
- }
- if ($maxbits - $bits < 5) {
- return $this->appendNum($bstream, $maxbits - $bits, 0);
- }
- $bits += 4;
- $words = (int)(($bits + 7) / 8);
- $padding = array();
- $padding = $this->appendNum($padding, $words * 8 - $bits + 4, 0);
- $padlen = $maxwords - $words;
- if ($padlen > 0) {
- $padbuf = array();
- for ($i=0; $i<$padlen; ++$i) {
- $padbuf[$i] = ($i&1)?0x11:0xec;
- }
- $padding = $this->appendBytes($padding, $padlen, $padbuf);
- }
- return $this->appendBitstream($bstream, $padding);
- }
-
- /**
- * mergeBitStream
- * @param array $bstream
- * @return array bitstream
- */
- protected function mergeBitStream($items) {
- $items = $this->convertData($items);
- $bstream = array();
- foreach ($items as $item) {
- $bstream = $this->appendBitstream($bstream, $item['bstream']);
- }
- return $bstream;
- }
-
- /**
- * Returns a stream of bits.
- * @param int $items
- * @return array padded merged byte stream
- */
- protected function getBitStream($items) {
- $bstream = $this->mergeBitStream($items);
- return $this->appendPaddingBit($bstream);
- }
-
- /**
- * Pack all bit streams padding bits into a byte array.
- * @param int $items
- * @return array padded merged byte stream
- */
- protected function getByteStream($items) {
- $bstream = $this->getBitStream($items);
- return $this->bitstreamToByte($bstream);
- }
-
- // - - - - - - - - - - - - - - - - - - - - - - - - -
-
- // QRbitstream
-
- /**
- * Return an array with zeros
- * @param int $setLength array size
- * @return array
- */
- protected function allocate($setLength) {
- return array_fill(0, $setLength, 0);
- }
-
- /**
- * Return new bitstream from number
- * @param int $bits number of bits
- * @param int $num number
- * @return array bitstream
- */
- protected function newFromNum($bits, $num) {
- $bstream = $this->allocate($bits);
- $mask = 1 << ($bits - 1);
- for ($i=0; $i<$bits; ++$i) {
- if ($num & $mask) {
- $bstream[$i] = 1;
- } else {
- $bstream[$i] = 0;
- }
- $mask = $mask >> 1;
- }
- return $bstream;
- }
-
- /**
- * Return new bitstream from bytes
- * @param int $size size
- * @param array $data bytes
- * @return array bitstream
- */
- protected function newFromBytes($size, $data) {
- $bstream = $this->allocate($size * 8);
- $p=0;
- for ($i=0; $i<$size; ++$i) {
- $mask = 0x80;
- for ($j=0; $j<8; ++$j) {
- if ($data[$i] & $mask) {
- $bstream[$p] = 1;
- } else {
- $bstream[$p] = 0;
- }
- $p++;
- $mask = $mask >> 1;
- }
- }
- return $bstream;
- }
-
- /**
- * Append one bitstream to another
- * @param array $bitstream original bitstream
- * @param array $append bitstream to append
- * @return array bitstream
- */
- protected function appendBitstream($bitstream, $append) {
- if ((!is_array($append)) OR (count($append) == 0)) {
- return $bitstream;
- }
- if (count($bitstream) == 0) {
- return $append;
- }
- return array_values(array_merge($bitstream, $append));
- }
-
- /**
- * Append one bitstream created from number to another
- * @param array $bitstream original bitstream
- * @param int $bits number of bits
- * @param int $num number
- * @return array bitstream
- */
- protected function appendNum($bitstream, $bits, $num) {
- if ($bits == 0) {
- return 0;
- }
- $b = $this->newFromNum($bits, $num);
- return $this->appendBitstream($bitstream, $b);
- }
-
- /**
- * Append one bitstream created from bytes to another
- * @param array $bitstream original bitstream
- * @param int $size size
- * @param array $data bytes
- * @return array bitstream
- */
- protected function appendBytes($bitstream, $size, $data) {
- if ($size == 0) {
- return 0;
- }
- $b = $this->newFromBytes($size, $data);
- return $this->appendBitstream($bitstream, $b);
- }
-
- /**
- * Convert bitstream to bytes
- * @param array $bitstream original bitstream
- * @return array of bytes
- */
- protected function bitstreamToByte($bstream) {
- $size = count($bstream);
- if ($size == 0) {
- return array();
- }
- $data = array_fill(0, (int)(($size + 7) / 8), 0);
- $bytes = (int)($size / 8);
- $p = 0;
- for ($i=0; $i<$bytes; $i++) {
- $v = 0;
- for ($j=0; $j<8; $j++) {
- $v = $v << 1;
- $v |= $bstream[$p];
- $p++;
- }
- $data[$i] = $v;
- }
- if ($size & 7) {
- $v = 0;
- for ($j=0; $j<($size & 7); $j++) {
- $v = $v << 1;
- $v |= $bstream[$p];
- $p++;
- }
- $data[$bytes] = $v;
- }
- return $data;
- }
-
- // - - - - - - - - - - - - - - - - - - - - - - - - -
-
- // QRspec
-
- /**
- * Replace a value on the array at the specified position
- * @param array $srctab
- * @param int $x X position
- * @param int $y Y position
- * @param string $repl value to replace
- * @param int $replLen length of the repl string
- * @return array srctab
- */
- protected function qrstrset($srctab, $x, $y, $repl, $replLen=false) {
- $srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
- return $srctab;
- }
-
- /**
- * Return maximum data code length (bytes) for the version.
- * @param int $version version
- * @param int $level error correction level
- * @return int maximum size (bytes)
- */
- protected function getDataLength($version, $level) {
- return $this->capacity[$version][QRCAP_WORDS] - $this->capacity[$version][QRCAP_EC][$level];
- }
-
- /**
- * Return maximum error correction code length (bytes) for the version.
- * @param int $version version
- * @param int $level error correction level
- * @return int ECC size (bytes)
- */
- protected function getECCLength($version, $level){
- return $this->capacity[$version][QRCAP_EC][$level];
- }
-
- /**
- * Return the width of the symbol for the version.
- * @param int $version version
- * @return int width
- */
- protected function getWidth($version) {
- return $this->capacity[$version][QRCAP_WIDTH];
- }
-
- /**
- * Return the numer of remainder bits.
- * @param int $version version
- * @return int number of remainder bits
- */
- protected function getRemainder($version) {
- return $this->capacity[$version][QRCAP_REMINDER];
- }
-
- /**
- * Return a version number that satisfies the input code length.
- * @param int $size input code length (byte)
- * @param int $level error correction level
- * @return int version number
- */
- protected function getMinimumVersion($size, $level) {
- for ($i=1; $i <= QRSPEC_VERSION_MAX; ++$i) {
- $words = $this->capacity[$i][QRCAP_WORDS] - $this->capacity[$i][QRCAP_EC][$level];
- if ($words >= $size) {
- return $i;
- }
- }
- return -1;
- }
-
- /**
- * Return the size of length indicator for the mode and version.
- * @param int $mode encoding mode
- * @param int $version version
- * @return int the size of the appropriate length indicator (bits).
- */
- protected function lengthIndicator($mode, $version) {
- if ($mode == QR_MODE_ST) {
- return 0;
- }
- if ($version <= 9) {
- $l = 0;
- } elseif ($version <= 26) {
- $l = 1;
- } else {
- $l = 2;
- }
- return $this->lengthTableBits[$mode][$l];
- }
-
- /**
- * Return the maximum length for the mode and version.
- * @param int $mode encoding mode
- * @param int $version version
- * @return int the maximum length (bytes)
- */
- protected function maximumWords($mode, $version) {
- if ($mode == QR_MODE_ST) {
- return 3;
- }
- if ($version <= 9) {
- $l = 0;
- } else if ($version <= 26) {
- $l = 1;
- } else {
- $l = 2;
- }
- $bits = $this->lengthTableBits[$mode][$l];
- $words = (1 << $bits) - 1;
- if ($mode == QR_MODE_KJ) {
- $words *= 2; // the number of bytes is required
- }
- return $words;
- }
-
- /**
- * Return an array of ECC specification.
- * @param int $version version
- * @param int $level error correction level
- * @param array $spec an array of ECC specification contains as following: {# of type1 blocks, # of data code, # of ecc code, # of type2 blocks, # of data code}
- * @return array spec
- */
- protected function getEccSpec($version, $level, $spec) {
- if (count($spec) < 5) {
- $spec = array(0, 0, 0, 0, 0);
- }
- $b1 = $this->eccTable[$version][$level][0];
- $b2 = $this->eccTable[$version][$level][1];
- $data = $this->getDataLength($version, $level);
- $ecc = $this->getECCLength($version, $level);
- if ($b2 == 0) {
- $spec[0] = $b1;
- $spec[1] = (int)($data / $b1);
- $spec[2] = (int)($ecc / $b1);
- $spec[3] = 0;
- $spec[4] = 0;
- } else {
- $spec[0] = $b1;
- $spec[1] = (int)($data / ($b1 + $b2));
- $spec[2] = (int)($ecc / ($b1 + $b2));
- $spec[3] = $b2;
- $spec[4] = $spec[1] + 1;
- }
- return $spec;
- }
-
- /**
- * Put an alignment marker.
- * @param array $frame frame
- * @param int $width width
- * @param int $ox X center coordinate of the pattern
- * @param int $oy Y center coordinate of the pattern
- * @return array frame
- */
- protected function putAlignmentMarker($frame, $ox, $oy) {
- $finder = array(
- "\xa1\xa1\xa1\xa1\xa1",
- "\xa1\xa0\xa0\xa0\xa1",
- "\xa1\xa0\xa1\xa0\xa1",
- "\xa1\xa0\xa0\xa0\xa1",
- "\xa1\xa1\xa1\xa1\xa1"
- );
- $yStart = $oy - 2;
- $xStart = $ox - 2;
- for ($y=0; $y < 5; $y++) {
- $frame = $this->qrstrset($frame, $xStart, $yStart+$y, $finder[$y]);
- }
- return $frame;
- }
-
- /**
- * Put an alignment pattern.
- * @param int $version version
- * @param array $fram frame
- * @param int $width width
- * @return array frame
- */
- protected function putAlignmentPattern($version, $frame, $width) {
- if ($version < 2) {
- return $frame;
- }
- $d = $this->alignmentPattern[$version][1] - $this->alignmentPattern[$version][0];
- if ($d < 0) {
- $w = 2;
- } else {
- $w = (int)(($width - $this->alignmentPattern[$version][0]) / $d + 2);
- }
- if ($w * $w - 3 == 1) {
- $x = $this->alignmentPattern[$version][0];
- $y = $this->alignmentPattern[$version][0];
- $frame = $this->putAlignmentMarker($frame, $x, $y);
- return $frame;
- }
- $cx = $this->alignmentPattern[$version][0];
- $wo = $w - 1;
- for ($x=1; $x < $wo; ++$x) {
- $frame = $this->putAlignmentMarker($frame, 6, $cx);
- $frame = $this->putAlignmentMarker($frame, $cx, 6);
- $cx += $d;
- }
- $cy = $this->alignmentPattern[$version][0];
- for ($y=0; $y < $wo; ++$y) {
- $cx = $this->alignmentPattern[$version][0];
- for ($x=0; $x < $wo; ++$x) {
- $frame = $this->putAlignmentMarker($frame, $cx, $cy);
- $cx += $d;
- }
- $cy += $d;
- }
- return $frame;
- }
-
- /**
- * Return BCH encoded version information pattern that is used for the symbol of version 7 or greater. Use lower 18 bits.
- * @param int $version version
- * @return BCH encoded version information pattern
- */
- protected function getVersionPattern($version) {
- if (($version < 7) OR ($version > QRSPEC_VERSION_MAX)) {
- return 0;
- }
- return $this->versionPattern[($version - 7)];
- }
-
- /**
- * Return BCH encoded format information pattern.
- * @param array $mask
- * @param int $level error correction level
- * @return BCH encoded format information pattern
- */
- protected function getFormatInfo($mask, $level) {
- if (($mask < 0) OR ($mask > 7)) {
- return 0;
- }
- if (($level < 0) OR ($level > 3)) {
- return 0;
- }
- return $this->formatInfo[$level][$mask];
- }
-
- /**
- * Put a finder pattern.
- * @param array $frame frame
- * @param int $width width
- * @param int $ox X center coordinate of the pattern
- * @param int $oy Y center coordinate of the pattern
- * @return array frame
- */
- protected function putFinderPattern($frame, $ox, $oy) {
- $finder = array(
- "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
- "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
- "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
- "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
- "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
- "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
- "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
- );
- for ($y=0; $y < 7; $y++) {
- $frame = $this->qrstrset($frame, $ox, ($oy + $y), $finder[$y]);
- }
- return $frame;
- }
-
- /**
- * Return a copy of initialized frame.
- * @param int $version version
- * @return Array of unsigned char.
- */
- protected function createFrame($version) {
- $width = $this->capacity[$version][QRCAP_WIDTH];
- $frameLine = str_repeat ("\0", $width);
- $frame = array_fill(0, $width, $frameLine);
- // Finder pattern
- $frame = $this->putFinderPattern($frame, 0, 0);
- $frame = $this->putFinderPattern($frame, $width - 7, 0);
- $frame = $this->putFinderPattern($frame, 0, $width - 7);
- // Separator
- $yOffset = $width - 7;
- for ($y=0; $y < 7; ++$y) {
- $frame[$y][7] = "\xc0";
- $frame[$y][$width - 8] = "\xc0";
- $frame[$yOffset][7] = "\xc0";
- ++$yOffset;
- }
- $setPattern = str_repeat("\xc0", 8);
- $frame = $this->qrstrset($frame, 0, 7, $setPattern);
- $frame = $this->qrstrset($frame, $width-8, 7, $setPattern);
- $frame = $this->qrstrset($frame, 0, $width - 8, $setPattern);
- // Format info
- $setPattern = str_repeat("\x84", 9);
- $frame = $this->qrstrset($frame, 0, 8, $setPattern);
- $frame = $this->qrstrset($frame, $width - 8, 8, $setPattern, 8);
- $yOffset = $width - 8;
- for ($y=0; $y < 8; ++$y,++$yOffset) {
- $frame[$y][8] = "\x84";
- $frame[$yOffset][8] = "\x84";
- }
- // Timing pattern
- $wo = $width - 15;
- for ($i=1; $i < $wo; ++$i) {
- $frame[6][7+$i] = chr(0x90 | ($i & 1));
- $frame[7+$i][6] = chr(0x90 | ($i & 1));
- }
- // Alignment pattern
- $frame = $this->putAlignmentPattern($version, $frame, $width);
- // Version information
- if ($version >= 7) {
- $vinf = $this->getVersionPattern($version);
- $v = $vinf;
- for ($x=0; $x<6; ++$x) {
- for ($y=0; $y<3; ++$y) {
- $frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
- $v = $v >> 1;
- }
- }
- $v = $vinf;
- for ($y=0; $y<6; ++$y) {
- for ($x=0; $x<3; ++$x) {
- $frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
- $v = $v >> 1;
- }
- }
- }
- // and a little bit...
- $frame[$width - 8][8] = "\x81";
- return $frame;
- }
-
- /**
- * Set new frame for the specified version.
- * @param int $version version
- * @return Array of unsigned char.
- */
- protected function newFrame($version) {
- if (($version < 1) OR ($version > QRSPEC_VERSION_MAX)) {
- return NULL;
- }
- if (!isset($this->frames[$version])) {
- $this->frames[$version] = $this->createFrame($version);
- }
- if (is_null($this->frames[$version])) {
- return NULL;
- }
- return $this->frames[$version];
- }
-
- /**
- * Return block number 0
- * @param array $spec
- * @return int value
- */
- protected function rsBlockNum($spec) {
- return ($spec[0] + $spec[3]);
- }
-
- /**
- * Return block number 1
- * @param array $spec
- * @return int value
- */
- protected function rsBlockNum1($spec) {
- return $spec[0];
- }
-
- /**
- * Return data codes 1
- * @param array $spec
- * @return int value
- */
- protected function rsDataCodes1($spec) {
- return $spec[1];
- }
-
- /**
- * Return ecc codes 1
- * @param array $spec
- * @return int value
- */
- protected function rsEccCodes1($spec) {
- return $spec[2];
- }
-
- /**
- * Return block number 2
- * @param array $spec
- * @return int value
- */
- protected function rsBlockNum2($spec) {
- return $spec[3];
- }
-
- /**
- * Return data codes 2
- * @param array $spec
- * @return int value
- */
- protected function rsDataCodes2($spec) {
- return $spec[4];
- }
-
- /**
- * Return ecc codes 2
- * @param array $spec
- * @return int value
- */
- protected function rsEccCodes2($spec) {
- return $spec[2];
- }
-
- /**
- * Return data length
- * @param array $spec
- * @return int value
- */
- protected function rsDataLength($spec) {
- return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);
- }
-
- /**
- * Return ecc length
- * @param array $spec
- * @return int value
- */
- protected function rsEccLength($spec) {
- return ($spec[0] + $spec[3]) * $spec[2];
- }
-
- // - - - - - - - - - - - - - - - - - - - - - - - - -
-
- // QRrs
-
- /**
- * Initialize a Reed-Solomon codec and add it to existing rsitems
- * @param int $symsize symbol size, bits
- * @param int $gfpoly Field generator polynomial coefficients
- * @param int $fcr first root of RS code generator polynomial, index form
- * @param int $prim primitive element to generate polynomial roots
- * @param int $nroots RS code generator polynomial degree (number of roots)
- * @param int $pad padding bytes at front of shortened block
- * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
- */
- protected function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
- foreach ($this->rsitems as $rs) {
- if (($rs['pad'] != $pad) OR ($rs['nroots'] != $nroots) OR ($rs['mm'] != $symsize)
- OR ($rs['gfpoly'] != $gfpoly) OR ($rs['fcr'] != $fcr) OR ($rs['prim'] != $prim)) {
- continue;
- }
- return $rs;
- }
- $rs = $this->init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
- array_unshift($this->rsitems, $rs);
- return $rs;
- }
-
- // - - - - - - - - - - - - - - - - - - - - - - - - -
-
- // QRrsItem
-
- /**
- * modnn
- * @param array RS values
- * @param int $x X position
- * @return int X osition
- */
- protected function modnn($rs, $x) {
- while ($x >= $rs['nn']) {
- $x -= $rs['nn'];
- $x = ($x >> $rs['mm']) + ($x & $rs['nn']);
- }
- return $x;
- }
-
- /**
- * Initialize a Reed-Solomon codec and returns an array of values.
- * @param int $symsize symbol size, bits
- * @param int $gfpoly Field generator polynomial coefficients
- * @param int $fcr first root of RS code generator polynomial, index form
- * @param int $prim primitive element to generate polynomial roots
- * @param int $nroots RS code generator polynomial degree (number of roots)
- * @param int $pad padding bytes at front of shortened block
- * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
- */
- protected function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
- // Based on Reed solomon encoder by Phil Karn, KA9Q (GNU-LGPLv2)
- $rs = null;
- // Check parameter ranges
- if (($symsize < 0) OR ($symsize > 8)) {
- return $rs;
- }
- if (($fcr < 0) OR ($fcr >= (1<<$symsize))) {
- return $rs;
- }
- if (($prim <= 0) OR ($prim >= (1<<$symsize))) {
- return $rs;
- }
- if (($nroots < 0) OR ($nroots >= (1<<$symsize))) {
- return $rs;
- }
- if (($pad < 0) OR ($pad >= ((1<<$symsize) -1 - $nroots))) {
- return $rs;
- }
- $rs = array();
- $rs['mm'] = $symsize;
- $rs['nn'] = (1 << $symsize) - 1;
- $rs['pad'] = $pad;
- $rs['alpha_to'] = array_fill(0, ($rs['nn'] + 1), 0);
- $rs['index_of'] = array_fill(0, ($rs['nn'] + 1), 0);
- // PHP style macro replacement ;)
- $NN =& $rs['nn'];
- $A0 =& $NN;
- // Generate Galois field lookup tables
- $rs['index_of'][0] = $A0; // log(zero) = -inf
- $rs['alpha_to'][$A0] = 0; // alpha**-inf = 0
- $sr = 1;
- for ($i=0; $i<$rs['nn']; ++$i) {
- $rs['index_of'][$sr] = $i;
- $rs['alpha_to'][$i] = $sr;
- $sr <<= 1;
- if ($sr & (1 << $symsize)) {
- $sr ^= $gfpoly;
- }
- $sr &= $rs['nn'];
- }
- if ($sr != 1) {
- // field generator polynomial is not primitive!
- return NULL;
- }
- // Form RS code generator polynomial from its roots
- $rs['genpoly'] = array_fill(0, ($nroots + 1), 0);
- $rs['fcr'] = $fcr;
- $rs['prim'] = $prim;
- $rs['nroots'] = $nroots;
- $rs['gfpoly'] = $gfpoly;
- // Find prim-th root of 1, used in decoding
- for ($iprim=1; ($iprim % $prim) != 0; $iprim += $rs['nn']) {
- ; // intentional empty-body loop!
- }
- $rs['iprim'] = (int)($iprim / $prim);
- $rs['genpoly'][0] = 1;
-
-
- for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
- $rs['genpoly'][$i+1] = 1;
- // Multiply rs->genpoly[] by @**(root + x)
- for ($j = $i; $j > 0; --$j) {
- if ($rs['genpoly'][$j] != 0) {
- $rs['genpoly'][$j] = $rs['genpoly'][$j-1] ^ $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][$j]] + $root)];
- } else {
- $rs['genpoly'][$j] = $rs['genpoly'][$j-1];
- }
- }
- // rs->genpoly[0] can never be zero
- $rs['genpoly'][0] = $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][0]] + $root)];
- }
- // convert rs->genpoly[] to index form for quicker encoding
- for ($i = 0; $i <= $nroots; ++$i) {
- $rs['genpoly'][$i] = $rs['index_of'][$rs['genpoly'][$i]];
- }
- return $rs;
- }
-
- /**
- * Encode a Reed-Solomon codec and returns the parity array
- * @param array $rs RS values
- * @param array $data data
- * @param array $parity parity
- * @return parity array
- */
- protected function encode_rs_char($rs, $data, $parity) {
- $MM =& $rs['mm']; // bits per symbol
- $NN =& $rs['nn']; // the total number of symbols in a RS block
- $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
- $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
- $GENPOLY =& $rs['genpoly']; // an array of NROOTS+1 elements containing the generator polynomial in index form
- $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
- $FCR =& $rs['fcr']; // first consecutive root, index form
- $PRIM =& $rs['prim']; // primitive element, index form
- $IPRIM =& $rs['iprim']; // prim-th root of 1, index form
- $PAD =& $rs['pad']; // the number of pad symbols in a block
- $A0 =& $NN;
- $parity = array_fill(0, $NROOTS, 0);
- for ($i=0; $i < ($NN - $NROOTS - $PAD); $i++) {
- $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
- if ($feedback != $A0) {
- // feedback term is non-zero
- // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
- // always be for the polynomials constructed by init_rs()
- $feedback = $this->modnn($rs, $NN - $GENPOLY[$NROOTS] + $feedback);
- for ($j=1; $j < $NROOTS; ++$j) {
- $parity[$j] ^= $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[($NROOTS - $j)])];
- }
- }
- // Shift
- array_shift($parity);
- if ($feedback != $A0) {
- array_push($parity, $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[0])]);
- } else {
- array_push($parity, 0);
- }
- }
- return $parity;
- }
-
- } // end QRcode class
-
-} // END OF "class_exists QRcode"
-?>
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-03 07:37:02 +0000