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<?php//============================================================+// File name : qrcode.php// Version : 1.0.010// Begin : 2010-03-22// Last Update : 2012-07-25// Author : Nicola Asuni - Tecnick.com LTD - www.tecnick.com - info@tecnick.com// License : GNU-LGPL v3 (http://www.gnu.org/copyleft/lesser.html)// -------------------------------------------------------------------// Copyright (C) 2010-2012 Nicola Asuni - Tecnick.com LTD//// This file is part of TCPDF software library.//// TCPDF 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 (at your option) any later version.//// TCPDF 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 TCPDF. If not, see <http://www.gnu.org/licenses/>.//// See LICENSE.TXT file for more information.// -------------------------------------------------------------------//// 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// ---------------------------------------------------------//============================================================+/*** @file* 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* @author Nicola Asuni* @version 1.0.010*/// definitionsif (!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// #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#// for compatibility with PHP4if (!function_exists('str_split')) {/*** Convert a string to an array (needed for PHP4 compatibility)* @param $string (string) The input string.* @param $split_length (int) Maximum length of the chunk.* @return If the optional split_length parameter is specified, the returned array will be broken down into chunks with each being split_length in length, otherwise each chunk will be one character in length. FALSE is returned if split_length is less than 1. If the split_length length exceeds the length of string , the entire string is returned as the first (and only) array element.*/function str_split($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 QRcode* 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* @author Nicola Asuni* @version 1.0.010*/class QRcode {/*** Barcode array to be returned which is readable by TCPDF.* @protected*/protected $barcode_array = array();/*** 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.* @protected*/protected $version = 0;/*** Levels of error correction. See definitions for possible values.* @protected*/protected $level = QR_ECLEVEL_L;/*** Encoding mode.* @protected*/protected $hint = QR_MODE_8B;/*** Boolean flag, if true the input string will be converted to uppercase.* @protected*/protected $casesensitive = true;/*** Structured QR code (not supported yet).* @protected*/protected $structured = 0;/*** Mask data.* @protected*/protected $data;// FrameFiller/*** Width.* @protected*/protected $width;/*** Frame.* @protected*/protected $frame;/*** X position of bit.* @protected*/protected $x;/*** Y position of bit.* @protected*/protected $y;/*** Direction.* @protected*/protected $dir;/*** Single bit value.* @protected*/protected $bit;// ---- QRrawcode ----/*** Data code.* @protected*/protected $datacode = array();/*** Error correction code.* @protected*/protected $ecccode = array();/*** Blocks.* @protected*/protected $blocks;/*** Reed-Solomon blocks.* @protected*/protected $rsblocks = array(); //of RSblock/*** Counter.* @protected*/protected $count;/*** Data length.* @protected*/protected $dataLength;/*** Error correction length.* @protected*/protected $eccLength;/*** Value b1.* @protected*/protected $b1;// ---- QRmask ----/*** Run length.* @protected*/protected $runLength = array();// ---- QRsplit ----/*** Input data string.* @protected*/protected $dataStr = '';/*** Input items.* @protected*/protected $items;// Reed-Solomon items/*** Reed-Solomon items.* @protected*/protected $rsitems = array();/*** Array of frames.* @protected*/protected $frames = array();/*** Alphabet-numeric convesion table.* @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 //);/*** Array Table of the capacity of symbols.* See Table 1 (pp.13) and Table 12-16 (pp.30-36), JIS X0510:2004.* @protected*/protected $capacity = array(array( 0, 0, 0, array( 0, 0, 0, 0)), //array( 21, 26, 0, array( 7, 10, 13, 17)), // 1array( 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)), // 5array( 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)), // 10array( 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)), // 15array( 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)), // 20array(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)), // 25array(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)), // 30array(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)), // 35array(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);/*** Array Length indicator.* @protected*/protected $lengthTableBits = array(array(10, 12, 14),array( 9, 11, 13),array( 8, 16, 16),array( 8, 10, 12));/*** Array Table of the error correction code (Reed-Solomon block).* See Table 12-16 (pp.30-36), JIS X0510:2004.* @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)), // 1array(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)), // 5array(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)), // 10array(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)), // 15array(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)), // 20array(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)), // 25array(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)), // 30array(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)), // 35array(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);/*** 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.* @protected*/protected $alignmentPattern = array(array( 0, 0),array( 0, 0), array(18, 0), array(22, 0), array(26, 0), array(30, 0), // 1- 5array(34, 0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), // 11-15array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), // 16-20array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), // 21-25array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), // 26-30array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), // 31-35array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58) // 35-40);/*** Array Version information pattern (BCH coded).* See Table 1 in Appendix D (pp.68) of JIS X0510:2004.* size: [QRSPEC_VERSION_MAX - 6]* @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);/*** Array Format information* @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 $code (string) code to represent using QRcode* @param $eclevel (string) error level: <ul><li>L : About 7% or less errors can be corrected.</li><li>M : About 15% or less errors can be corrected.</li><li>Q : About 25% or less errors can be corrected.</li><li>H : About 30% or less errors can be corrected.</li></ul>* @public* @since 1.0.000*/public function __construct($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);if (is_null($this->data)) {return false;}$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;* @public*/public function getBarcodeArray() {return $this->barcode_array;}/*** Convert the frame in binary form* @param $frame (array) array to binarize* @return array frame in binary form*/protected function binarize($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 $mask (int) masking mode*/protected function encodeMask($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;$this->bit = -1;// inteleaved data and ecc codesfor ($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 $at (array) x,y position* @param $val (int) value of the character to set*/protected function setFrameAt($at, $val) {$this->frame[$at['y']][$at['x']] = chr($val);}/*** Get frame value at specified position* @param $at (array) x,y position* @return value at specified position*/protected function getFrameAt($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 $spec (array) array of ECC specification* @return 0 in case of success, -1 in case of error*/protected function init($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 $width (int) frame width* @param $frame (array) frame* @param $mask (array) masking mode* @param $level (int) error correction level* @return int blacks*/protected function writeFormatInformation($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 $x (int) X position* @param $y (int) Y position* @return int mask*/protected function mask0($x, $y) {return ($x + $y) & 1;}/*** mask1* @param $x (int) X position* @param $y (int) Y position* @return int mask*/protected function mask1($x, $y) {return ($y & 1);}/*** mask2* @param $x (int) X position* @param $y (int) Y position* @return int mask*/protected function mask2($x, $y) {return ($x % 3);}/*** mask3* @param $x (int) X position* @param $y (int) Y position* @return int mask*/protected function mask3($x, $y) {return ($x + $y) % 3;}/*** mask4* @param $x (int) X position* @param $y (int) Y position* @return int mask*/protected function mask4($x, $y) {return (((int)($y / 2)) + ((int)($x / 3))) & 1;}/*** mask5* @param $x (int) X position* @param $y (int) Y position* @return int mask*/protected function mask5($x, $y) {return (($x * $y) & 1) + ($x * $y) % 3;}/*** mask6* @param $x (int) X position* @param $y (int) Y position* @return int mask*/protected function mask6($x, $y) {return ((($x * $y) & 1) + ($x * $y) % 3) & 1;}/*** mask7* @param $x (int) X position* @param $y (int) Y position* @return int mask*/protected function mask7($x, $y) {return ((($x * $y) % 3) + (($x + $y) & 1)) & 1;}/*** Return bitmask* @param $maskNo (int) mask number* @param $width (int) width* @param $frame (array) frame* @return array bitmask*/protected function generateMaskNo($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 $maskNo (int)* @param $width (int)* @param $s (int)* @param $d (int)* @param $maskGenOnly (boolean)* @return int b*/protected function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly=false) {$b = 0;$bitMask = array();$bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);if ($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 $width (int)* @param $frame (array)* @param $maskNo (int)* @param $level (int)* @return array mask*/protected function makeMask($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 $length (int)* @return int demerit*/protected function calcN1N3($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 $width (int)* @param $frame (array)* @return int demerit*/protected function evaluateSymbol($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 $width (int)* @param $frame (array)* @param $level (int)* @return array best mask*/protected function mask($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 $str (string) string* @param $pos (int) characted position* @return boolean true of false*/protected function isdigitat($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 $str (string) string* @param $pos (int) characted position* @return boolean true of false*/protected function isalnumat($str, $pos) {if ($pos >= strlen($str)) {return false;}return ($this->lookAnTable(ord($str[$pos])) >= 0);}/*** identifyMode* @param $pos (int)* @return int mode*/protected function identifyMode($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 - l8if ($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 - laif ($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 =1 ;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 - laif ($dif < 0) {break;} else {$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 - l8if ($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 $run;}/*** eat8* @return int run*/protected function eat8() {$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 - l8if ($dif < 0) {break;} else {$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 - l8if ($dif < 0) {break;} else {$p = $q;}} else {$p++;}}$run = $p;$this->items = $this->appendNewInputItem($this->items, QR_MODE_8B, $run, str_split($this->dataStr));return $run;}/*** splitString* @return (int)*/protected function splitString() {while (strlen($this->dataStr) > 0) {$mode = $this->identifyMode(0);switch ($mode) {case QR_MODE_NM: {$length = $this->eatNum();break;}case QR_MODE_AN: {$length = $this->eatAn();break;}case QR_MODE_KJ: {if ($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, $length);}return 0;}/*** toUpper*/protected function toUpper() {$stringLen = strlen($this->dataStr);$p = 0;while ($p < $stringLen) {$mode = $this->identifyMode(substr($this->dataStr, $p), $this->hint);if ($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 $mode (int)* @param $size (int)* @param $data (array)* @param $bstream (array)* @return array input item*/protected function newInputItem($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 $inputitem (array)* @param $version (int)* @return array input item*/protected function encodeModeNum($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 $inputitem (array)* @param $version (int)* @return array input item*/protected function encodeModeAn($inputitem, $version) {$words = (int)($inputitem['size'] / 2);$inputitem['bstream'] = array();$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x02);$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $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 $inputitem (array)* @param $version (int)* @return array input item*/protected function encodeMode8($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 $inputitem (array)* @param $version (int)* @return array input item*/protected function encodeModeKanji($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 $inputitem (array)* @return array input item*/protected function encodeModeStructure($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 $inputitem (array)* @param $version (int)* @return array input item*/protected function encodeBitStream($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 $items (arrray) input items* @param $mode (int) encoding mode.* @param $size (int) size of data (byte).* @param $data (array) array of input data.* @return items**/protected function appendNewInputItem($items, $mode, $size, $data) {$newitem = $this->newInputItem($mode, $size, $data);if (!empty($newitem)) {$items[] = $newitem;}return $items;}/*** insertStructuredAppendHeader* @param $items (array)* @param $size (int)* @param $index (int)* @param $parity (int)* @return array items*/protected function insertStructuredAppendHeader($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 $items (array)* @return int parity*/protected function calcParity($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 $size (int)* @param $data (array)* @return boolean true or false*/protected function checkModeNum($size, $data) {for ($i=0; $i<$size; ++$i) {if ((ord($data[$i]) < ord('0')) OR (ord($data[$i]) > ord('9'))){return false;}}return true;}/*** Look up the alphabet-numeric convesion table (see JIS X0510:2004, pp.19).* @param $c (int) character value* @return value*/protected function lookAnTable($c) {return (($c > 127)?-1:$this->anTable[$c]);}/*** checkModeAn* @param $size (int)* @param $data (array)* @return boolean true or false*/protected function checkModeAn($size, $data) {for ($i=0; $i<$size; ++$i) {if ($this->lookAnTable(ord($data[$i])) == -1) {return false;}}return true;}/*** estimateBitsModeNum* @param $size (int)* @return int number of bits*/protected function estimateBitsModeNum($size) {$w = (int)($size / 3);$bits = ($w * 10);switch($size - ($w * 3)) {case 1: {$bits += 4;break;}case 2: {$bits += 7;break;}}return $bits;}/*** estimateBitsModeAn* @param $size (int)* @return int number of bits*/protected function estimateBitsModeAn($size) {$bits = (int)($size * 5.5); // (size / 2 ) * 11if ($size & 1) {$bits += 6;}return $bits;}/*** estimateBitsMode8* @param $size (int)* @return int number of bits*/protected function estimateBitsMode8($size) {return (int)($size * 8);}/*** estimateBitsModeKanji* @param $size (int)* @return int number of bits*/protected function estimateBitsModeKanji($size) {return (int)($size * 6.5); // (size / 2 ) * 13}/*** checkModeKanji* @param $size (int)* @param $data (array)* @return boolean true or false*/protected function checkModeKanji($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 $mode (int) encoding mode.* @param $size (int) size of data (byte).* @param $data (array) data to validate* @return boolean true in case of valid data, false otherwise*/protected function check($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 $items (array)* @param $version (int)* @return int bits*/protected function estimateBitStreamSize($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 $items (array)* @return int version*/protected function estimateVersion($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 $mode (int)* @param $version (int)* @param $bits (int)* @return int size*/protected function lengthOfCode($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 $items (array)* @return array of items and total bits*/protected function createBitStream($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 $items (array)* @return array items*/protected function convertData($items) {$ver = $this->estimateVersion($items);if ($ver > $this->version) {$this->version = $ver;}while (true) {$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 $bstream (array)* @return array bitstream*/protected function appendPaddingBit($bstream) {if (is_null($bstream)) {return null;}$bits = count($bstream);$maxwords = $this->getDataLength($this->version, $this->level);$maxbits = $maxwords * 8;if ($maxbits == $bits) {return $bstream;}if ($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 $items (array) items* @return array bitstream*/protected function mergeBitStream($items) {$items = $this->convertData($items);if (!is_array($items)) {return null;}$bstream = array();foreach ($items as $item) {$bstream = $this->appendBitstream($bstream, $item['bstream']);}return $bstream;}/*** Returns a stream of bits.* @param $items (int)* @return array padded merged byte stream*/protected function getBitStream($items) {$bstream = $this->mergeBitStream($items);return $this->appendPaddingBit($bstream);}/*** Pack all bit streams padding bits into a byte array.* @param $items (int)* @return array padded merged byte stream*/protected function getByteStream($items) {$bstream = $this->getBitStream($items);return $this->bitstreamToByte($bstream);}// - - - - - - - - - - - - - - - - - - - - - - - - -// QRbitstream/*** Return an array with zeros* @param $setLength (int) array size* @return array*/protected function allocate($setLength) {return array_fill(0, $setLength, 0);}/*** Return new bitstream from number* @param $bits (int) number of bits* @param $num (int) number* @return array bitstream*/protected function newFromNum($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 $size (int) size* @param $data (array) bytes* @return array bitstream*/protected function newFromBytes($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 $bitstream (array) original bitstream* @param $append (array) bitstream to append* @return array bitstream*/protected function appendBitstream($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 $bitstream (array) original bitstream* @param $bits (int) number of bits* @param $num (int) number* @return array bitstream*/protected function appendNum($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 $bitstream (array) original bitstream* @param $size (int) size* @param $data (array) bytes* @return array bitstream*/protected function appendBytes($bitstream, $size, $data) {if ($size == 0) {return 0;}$b = $this->newFromBytes($size, $data);return $this->appendBitstream($bitstream, $b);}/*** Convert bitstream to bytes* @param $bstream (array) original bitstream* @return array of bytes*/protected function bitstreamToByte($bstream) {if (is_null($bstream)) {return null;}$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 $srctab (array)* @param $x (int) X position* @param $y (int) Y position* @param $repl (string) value to replace* @param $replLen (int) length of the repl string* @return array srctab*/protected function qrstrset($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 $version (int) version* @param $level (int) error correction level* @return int maximum size (bytes)*/protected function getDataLength($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 $version (int) version* @param $level (int) error correction level* @return int ECC size (bytes)*/protected function getECCLength($version, $level){return $this->capacity[$version][QRCAP_EC][$level];}/*** Return the width of the symbol for the version.* @param $version (int) version* @return int width*/protected function getWidth($version) {return $this->capacity[$version][QRCAP_WIDTH];}/*** Return the numer of remainder bits.* @param $version (int) version* @return int number of remainder bits*/protected function getRemainder($version) {return $this->capacity[$version][QRCAP_REMINDER];}/*** Return a version number that satisfies the input code length.* @param $size (int) input code length (bytes)* @param $level (int) error correction level* @return int version number*/protected function getMinimumVersion($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;}}// the size of input data is greater than QR capacity, try to lover the error correction modereturn -1;}/*** Return the size of length indicator for the mode and version.* @param $mode (int) encoding mode* @param $version (int) version* @return int the size of the appropriate length indicator (bits).*/protected function lengthIndicator($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 $mode (int) encoding mode* @param $version (int) version* @return int the maximum length (bytes)*/protected function maximumWords($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 $version (int) version* @param $level (int) error correction level* @param $spec (array) an array of ECC specification contains as following: {# of type1 blocks, # of data code, # of ecc code, # of type2 blocks, # of data code}* @return array spec*/protected function getEccSpec($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 $frame (array) frame* @param $ox (int) X center coordinate of the pattern* @param $oy (int) Y center coordinate of the pattern* @return array frame*/protected function putAlignmentMarker($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 $version (int) version* @param $frame (array) frame* @param $width (int) width* @return array frame*/protected function putAlignmentPattern($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 $version (int) version* @return BCH encoded version information pattern*/protected function getVersionPattern($version) {if (($version < 7) OR ($version > QRSPEC_VERSION_MAX)) {return 0;}return $this->versionPattern[($version - 7)];}/*** Return BCH encoded format information pattern.* @param $mask (array)* @param $level (int) error correction level* @return BCH encoded format information pattern*/protected function getFormatInfo($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 $frame (array) frame* @param $ox (int) X center coordinate of the pattern* @param $oy (int) Y center coordinate of the pattern* @return array frame*/protected function putFinderPattern($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 $version (int) version* @return Array of unsigned char.*/protected function createFrame($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, $width);// Version informationif ($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 $version (int) version* @return Array of unsigned char.*/protected function newFrame($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 $spec (array)* @return int value*/protected function rsBlockNum($spec) {return ($spec[0] + $spec[3]);}/*** Return block number 1* @param $spec (array)* @return int value*/protected function rsBlockNum1($spec) {return $spec[0];}/*** Return data codes 1* @param $spec (array)* @return int value*/protected function rsDataCodes1($spec) {return $spec[1];}/*** Return ecc codes 1* @param $spec (array)* @return int value*/protected function rsEccCodes1($spec) {return $spec[2];}/*** Return block number 2* @param $spec (array)* @return int value*/protected function rsBlockNum2($spec) {return $spec[3];}/*** Return data codes 2* @param $spec (array)* @return int value*/protected function rsDataCodes2($spec) {return $spec[4];}/*** Return ecc codes 2* @param $spec (array)* @return int value*/protected function rsEccCodes2($spec) {return $spec[2];}/*** Return data length* @param $spec (array)* @return int value*/protected function rsDataLength($spec) {return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);}/*** Return ecc length* @param $spec (array)* @return int value*/protected function rsEccLength($spec) {return ($spec[0] + $spec[3]) * $spec[2];}// - - - - - - - - - - - - - - - - - - - - - - - - -// QRrs/*** Initialize a Reed-Solomon codec and add it to existing rsitems* @param $symsize (int) symbol size, bits* @param $gfpoly (int) Field generator polynomial coefficients* @param $fcr (int) first root of RS code generator polynomial, index form* @param $prim (int) primitive element to generate polynomial roots* @param $nroots (int) RS code generator polynomial degree (number of roots)* @param $pad (int) padding bytes at front of shortened block* @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.*/protected function init_rs($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 $rs (array) RS values* @param $x (int) X position* @return int X osition*/protected function modnn($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 $symsize (int) symbol size, bits* @param $gfpoly (int) Field generator polynomial coefficients* @param $fcr (int) first root of RS code generator polynomial, index form* @param $prim (int) primitive element to generate polynomial roots* @param $nroots (int) RS code generator polynomial degree (number of roots)* @param $pad (int) padding bytes at front of shortened block* @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.*/protected function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {// Based on Reed solomon encoder by Phil Karn, KA9Q (GNU-LGPLv2)$rs = null;// Check parameter rangesif (($symsize < 0) OR ($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'] = $gfpoly;// Find prim-th root of 1, used in decodingfor ($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]] + $root)];}// convert rs->genpoly[] to index form for quicker encodingfor ($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 $rs (array) RS values* @param $data (array) data* @param $parity (array) parity* @return parity array*/protected function encode_rs_char($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 - $j)])];}}// Shiftarray_shift($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 FILE//============================================================+