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<?php
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//============================================================+
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// File name : qrcode.php
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// Version : 1.0.008
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// Begin : 2010-03-22
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// Last Update : 2010-11-15
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// Author : Nicola Asuni - Tecnick.com S.r.l - Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
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// License : GNU-LGPL v3 (http://www.gnu.org/copyleft/lesser.html)
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// -------------------------------------------------------------------
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// Copyright (C) 2010-2010 Nicola Asuni - Tecnick.com S.r.l.
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//
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// This file is part of TCPDF software library.
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//
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// TCPDF is free software: you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// TCPDF is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with TCPDF. If not, see <http://www.gnu.org/licenses/>.
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//
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// See LICENSE.TXT file for more information.
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// -------------------------------------------------------------------
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//
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// DESCRIPTION :
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//
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// Class to create QR-code arrays for TCPDF class.
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// QR Code symbol is a 2D barcode that can be scanned by
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// handy terminals such as a mobile phone with CCD.
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// The capacity of QR Code is up to 7000 digits or 4000
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// characters, and has high robustness.
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// This class supports QR Code model 2, described in
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// JIS (Japanese Industrial Standards) X0510:2004
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// or ISO/IEC 18004.
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// Currently the following features are not supported:
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// ECI and FNC1 mode, Micro QR Code, QR Code model 1,
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// Structured mode.
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//
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// This class is derived from the following projects:
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// ---------------------------------------------------------
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// "PHP QR Code encoder"
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// License: GNU-LGPLv3
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// Copyright (C) 2010 by Dominik Dzienia <deltalab at poczta dot fm>
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// http://phpqrcode.sourceforge.net/
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// https://sourceforge.net/projects/phpqrcode/
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//
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// The "PHP QR Code encoder" is based on
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// "C libqrencode library" (ver. 3.1.1)
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// License: GNU-LGPL 2.1
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// Copyright (C) 2006-2010 by Kentaro Fukuchi
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// http://megaui.net/fukuchi/works/qrencode/index.en.html
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//
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// Reed-Solomon code encoder is written by Phil Karn, KA9Q.
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// Copyright (C) 2002-2006 Phil Karn, KA9Q
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//
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// QR Code is registered trademark of DENSO WAVE INCORPORATED
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// http://www.denso-wave.com/qrcode/index-e.html
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// ---------------------------------------------------------
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//============================================================+
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/**
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* Class to create QR-code arrays for TCPDF class.
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* QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
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* The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
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* This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
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* Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
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*
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* This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
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* Please read comments on this class source file for full copyright and license information.
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*
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* @package com.tecnick.tcpdf
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* @abstract Class for generating QR-code array for TCPDF.
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* @author Nicola Asuni
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* @copyright 2010-2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
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* @link http://www.tcpdf.org
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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* @version 1.0.008
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*/
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// definitions
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if (!defined('QRCODEDEFS')) {
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/**
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* Indicate that definitions for this class are set
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*/
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define('QRCODEDEFS', true);
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// -----------------------------------------------------
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// Encoding modes (characters which can be encoded in QRcode)
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/**
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* Encoding mode
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*/
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define('QR_MODE_NL', -1);
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/**
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* Encoding mode numeric (0-9). 3 characters are encoded to 10bit length. In theory, 7089 characters or less can be stored in a QRcode.
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*/
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define('QR_MODE_NM', 0);
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/**
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* Encoding mode alphanumeric (0-9A-Z $%*+-./:) 45characters. 2 characters are encoded to 11bit length. In theory, 4296 characters or less can be stored in a QRcode.
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*/
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define('QR_MODE_AN', 1);
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/**
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* Encoding mode 8bit byte data. In theory, 2953 characters or less can be stored in a QRcode.
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*/
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define('QR_MODE_8B', 2);
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/**
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* Encoding mode KANJI. A KANJI character (multibyte character) is encoded to 13bit length. In theory, 1817 characters or less can be stored in a QRcode.
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*/
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define('QR_MODE_KJ', 3);
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/**
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* Encoding mode STRUCTURED (currently unsupported)
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*/
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define('QR_MODE_ST', 4);
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// -----------------------------------------------------
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// Levels of error correction.
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// QRcode has a function of an error correcting for miss reading that white is black.
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// Error correcting is defined in 4 level as below.
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/**
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* Error correction level L : About 7% or less errors can be corrected.
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*/
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define('QR_ECLEVEL_L', 0);
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/**
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* Error correction level M : About 15% or less errors can be corrected.
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*/
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define('QR_ECLEVEL_M', 1);
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/**
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* Error correction level Q : About 25% or less errors can be corrected.
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*/
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define('QR_ECLEVEL_Q', 2);
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/**
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* Error correction level H : About 30% or less errors can be corrected.
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*/
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define('QR_ECLEVEL_H', 3);
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// -----------------------------------------------------
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// Version. Size of QRcode is defined as version.
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// Version is from 1 to 40.
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// Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases.
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// So version 40 is 177*177 matrix.
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/**
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* Maximum QR Code version.
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*/
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define('QRSPEC_VERSION_MAX', 40);
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/**
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* Maximum matrix size for maximum version (version 40 is 177*177 matrix).
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*/
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define('QRSPEC_WIDTH_MAX', 177);
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// -----------------------------------------------------
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/**
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* Matrix index to get width from $capacity array.
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*/
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define('QRCAP_WIDTH', 0);
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/**
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* Matrix index to get number of words from $capacity array.
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*/
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define('QRCAP_WORDS', 1);
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/**
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* Matrix index to get remainder from $capacity array.
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*/
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define('QRCAP_REMINDER', 2);
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/**
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* Matrix index to get error correction level from $capacity array.
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*/
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define('QRCAP_EC', 3);
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// -----------------------------------------------------
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// Structure (currently usupported)
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/**
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* Number of header bits for structured mode
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*/
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define('STRUCTURE_HEADER_BITS', 20);
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/**
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* Max number of symbols for structured mode
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*/
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define('MAX_STRUCTURED_SYMBOLS', 16);
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// -----------------------------------------------------
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// Masks
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/**
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* Down point base value for case 1 mask pattern (concatenation of same color in a line or a column)
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*/
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define('N1', 3);
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/**
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* Down point base value for case 2 mask pattern (module block of same color)
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*/
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define('N2', 3);
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/**
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* Down point base value for case 3 mask pattern (1:1:3:1:1(dark:bright:dark:bright:dark)pattern in a line or a column)
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*/
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define('N3', 40);
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/**
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* Down point base value for case 4 mask pattern (ration of dark modules in whole)
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*/
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define('N4', 10);
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// -----------------------------------------------------
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// Optimization settings
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/**
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* if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
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*/
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define('QR_FIND_BEST_MASK', true);
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/**
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* if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
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*/
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define('QR_FIND_FROM_RANDOM', 2);
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/**
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* when QR_FIND_BEST_MASK === false
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*/
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define('QR_DEFAULT_MASK', 2);
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// -----------------------------------------------------
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} // end of definitions
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// #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#
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if (!class_exists('QRcode', false)) {
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// for compatibility with PHP4
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if (!function_exists('str_split')) {
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/**
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* Convert a string to an array (needed for PHP4 compatibility)
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* @param string $string The input string.
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* @param int $split_length Maximum length of the chunk.
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* @return If the optional split_length parameter is specified, the returned array will be broken down into chunks with each being split_length in length, otherwise each chunk will be one character in length. FALSE is returned if split_length is less than 1. If the split_length length exceeds the length of string , the entire string is returned as the first (and only) array element.
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*/
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function str_split($string, $split_length=1) {
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if ((strlen($string) > $split_length) OR (!$split_length)) {
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do {
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$c = strlen($string);
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$parts[] = substr($string, 0, $split_length);
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$string = substr($string, $split_length);
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} while ($string !== false);
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} else {
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$parts = array($string);
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}
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return $parts;
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}
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}
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// #####################################################
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/**
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* Class to create QR-code arrays for TCPDF class.
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* QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
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* The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
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* This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
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* Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
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*
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* This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
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* Please read comments on this class source file for full copyright and license information.
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*
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* @name QRcode
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* @package com.tecnick.tcpdf
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* @abstract Class for generating QR-code array for TCPDF.
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* @author Nicola Asuni
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* @copyright 2010-2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
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* @link http://www.tcpdf.org
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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* @version 1.0.006
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*/
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class QRcode {
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/**
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* @var barcode array to be returned which is readable by TCPDF
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* @access protected
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*/
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protected $barcode_array = array();
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/**
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* @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.
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* @access protected
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*/
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protected $version = 0;
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/**
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* @var Levels of error correction. See definitions for possible values.
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* @access protected
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*/
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protected $level = QR_ECLEVEL_L;
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/**
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* @var Encoding mode
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* @access protected
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*/
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protected $hint = QR_MODE_8B;
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/**
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* @var if true the input string will be converted to uppercase
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* @access protected
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*/
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protected $casesensitive = true;
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/**
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* @var structured QR code (not supported yet)
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* @access protected
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*/
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protected $structured = 0;
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/**
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* @var mask data
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* @access protected
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*/
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protected $data;
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// FrameFiller
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/**
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* @var width
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* @access protected
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*/
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protected $width;
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352 |
/**
|
|
|
353 |
* @var frame
|
|
|
354 |
* @access protected
|
|
|
355 |
*/
|
|
|
356 |
protected $frame;
|
|
|
357 |
|
|
|
358 |
/**
|
|
|
359 |
* @var X position of bit
|
|
|
360 |
* @access protected
|
|
|
361 |
*/
|
|
|
362 |
protected $x;
|
|
|
363 |
|
|
|
364 |
/**
|
|
|
365 |
* @var Y position of bit
|
|
|
366 |
* @access protected
|
|
|
367 |
*/
|
|
|
368 |
protected $y;
|
|
|
369 |
|
|
|
370 |
/**
|
|
|
371 |
* @var direction
|
|
|
372 |
* @access protected
|
|
|
373 |
*/
|
|
|
374 |
protected $dir;
|
|
|
375 |
|
|
|
376 |
/**
|
|
|
377 |
* @var single bit
|
|
|
378 |
* @access protected
|
|
|
379 |
*/
|
|
|
380 |
protected $bit;
|
|
|
381 |
|
|
|
382 |
// ---- QRrawcode ----
|
|
|
383 |
|
|
|
384 |
/**
|
|
|
385 |
* @var data code
|
|
|
386 |
* @access protected
|
|
|
387 |
*/
|
|
|
388 |
protected $datacode = array();
|
|
|
389 |
|
|
|
390 |
/**
|
|
|
391 |
* @var error correction code
|
|
|
392 |
* @access protected
|
|
|
393 |
*/
|
|
|
394 |
protected $ecccode = array();
|
|
|
395 |
|
|
|
396 |
/**
|
|
|
397 |
* @var blocks
|
|
|
398 |
* @access protected
|
|
|
399 |
*/
|
|
|
400 |
protected $blocks;
|
|
|
401 |
|
|
|
402 |
/**
|
|
|
403 |
* @var Reed-Solomon blocks
|
|
|
404 |
* @access protected
|
|
|
405 |
*/
|
|
|
406 |
protected $rsblocks = array(); //of RSblock
|
|
|
407 |
|
|
|
408 |
/**
|
|
|
409 |
* @var counter
|
|
|
410 |
* @access protected
|
|
|
411 |
*/
|
|
|
412 |
protected $count;
|
|
|
413 |
|
|
|
414 |
/**
|
|
|
415 |
* @var data length
|
|
|
416 |
* @access protected
|
|
|
417 |
*/
|
|
|
418 |
protected $dataLength;
|
|
|
419 |
|
|
|
420 |
/**
|
|
|
421 |
* @var error correction length
|
|
|
422 |
* @access protected
|
|
|
423 |
*/
|
|
|
424 |
protected $eccLength;
|
|
|
425 |
|
|
|
426 |
/**
|
|
|
427 |
* @var b1
|
|
|
428 |
* @access protected
|
|
|
429 |
*/
|
|
|
430 |
protected $b1;
|
|
|
431 |
|
|
|
432 |
// ---- QRmask ----
|
|
|
433 |
|
|
|
434 |
/**
|
|
|
435 |
* @var run length
|
|
|
436 |
* @access protected
|
|
|
437 |
*/
|
|
|
438 |
protected $runLength = array();
|
|
|
439 |
|
|
|
440 |
// ---- QRsplit ----
|
|
|
441 |
|
|
|
442 |
/**
|
|
|
443 |
* @var input data string
|
|
|
444 |
* @access protected
|
|
|
445 |
*/
|
|
|
446 |
protected $dataStr = '';
|
|
|
447 |
|
|
|
448 |
/**
|
|
|
449 |
* @var input items
|
|
|
450 |
* @access protected
|
|
|
451 |
*/
|
|
|
452 |
protected $items;
|
|
|
453 |
|
|
|
454 |
// Reed-Solomon items
|
|
|
455 |
|
|
|
456 |
/**
|
|
|
457 |
* @var Reed-Solomon items
|
|
|
458 |
* @access protected
|
|
|
459 |
*/
|
|
|
460 |
protected $rsitems = array();
|
|
|
461 |
|
|
|
462 |
/**
|
|
|
463 |
* @var array of frames
|
|
|
464 |
* @access protected
|
|
|
465 |
*/
|
|
|
466 |
protected $frames = array();
|
|
|
467 |
|
|
|
468 |
/**
|
|
|
469 |
* @var alphabet-numeric convesion table
|
|
|
470 |
* @access protected
|
|
|
471 |
*/
|
|
|
472 |
protected $anTable = array(
|
|
|
473 |
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
|
|
|
474 |
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
|
|
|
475 |
36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43, //
|
|
|
476 |
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 44, -1, -1, -1, -1, -1, //
|
|
|
477 |
-1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, //
|
|
|
478 |
25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, //
|
|
|
479 |
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
|
|
|
480 |
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 //
|
|
|
481 |
);
|
|
|
482 |
|
|
|
483 |
/**
|
|
|
484 |
* @var array Table of the capacity of symbols
|
|
|
485 |
* See Table 1 (pp.13) and Table 12-16 (pp.30-36), JIS X0510:2004.
|
|
|
486 |
* @access protected
|
|
|
487 |
*/
|
|
|
488 |
protected $capacity = array(
|
|
|
489 |
array( 0, 0, 0, array( 0, 0, 0, 0)), //
|
|
|
490 |
array( 21, 26, 0, array( 7, 10, 13, 17)), // 1
|
|
|
491 |
array( 25, 44, 7, array( 10, 16, 22, 28)), //
|
|
|
492 |
array( 29, 70, 7, array( 15, 26, 36, 44)), //
|
|
|
493 |
array( 33, 100, 7, array( 20, 36, 52, 64)), //
|
|
|
494 |
array( 37, 134, 7, array( 26, 48, 72, 88)), // 5
|
|
|
495 |
array( 41, 172, 7, array( 36, 64, 96, 112)), //
|
|
|
496 |
array( 45, 196, 0, array( 40, 72, 108, 130)), //
|
|
|
497 |
array( 49, 242, 0, array( 48, 88, 132, 156)), //
|
|
|
498 |
array( 53, 292, 0, array( 60, 110, 160, 192)), //
|
|
|
499 |
array( 57, 346, 0, array( 72, 130, 192, 224)), // 10
|
|
|
500 |
array( 61, 404, 0, array( 80, 150, 224, 264)), //
|
|
|
501 |
array( 65, 466, 0, array( 96, 176, 260, 308)), //
|
|
|
502 |
array( 69, 532, 0, array( 104, 198, 288, 352)), //
|
|
|
503 |
array( 73, 581, 3, array( 120, 216, 320, 384)), //
|
|
|
504 |
array( 77, 655, 3, array( 132, 240, 360, 432)), // 15
|
|
|
505 |
array( 81, 733, 3, array( 144, 280, 408, 480)), //
|
|
|
506 |
array( 85, 815, 3, array( 168, 308, 448, 532)), //
|
|
|
507 |
array( 89, 901, 3, array( 180, 338, 504, 588)), //
|
|
|
508 |
array( 93, 991, 3, array( 196, 364, 546, 650)), //
|
|
|
509 |
array( 97, 1085, 3, array( 224, 416, 600, 700)), // 20
|
|
|
510 |
array(101, 1156, 4, array( 224, 442, 644, 750)), //
|
|
|
511 |
array(105, 1258, 4, array( 252, 476, 690, 816)), //
|
|
|
512 |
array(109, 1364, 4, array( 270, 504, 750, 900)), //
|
|
|
513 |
array(113, 1474, 4, array( 300, 560, 810, 960)), //
|
|
|
514 |
array(117, 1588, 4, array( 312, 588, 870, 1050)), // 25
|
|
|
515 |
array(121, 1706, 4, array( 336, 644, 952, 1110)), //
|
|
|
516 |
array(125, 1828, 4, array( 360, 700, 1020, 1200)), //
|
|
|
517 |
array(129, 1921, 3, array( 390, 728, 1050, 1260)), //
|
|
|
518 |
array(133, 2051, 3, array( 420, 784, 1140, 1350)), //
|
|
|
519 |
array(137, 2185, 3, array( 450, 812, 1200, 1440)), // 30
|
|
|
520 |
array(141, 2323, 3, array( 480, 868, 1290, 1530)), //
|
|
|
521 |
array(145, 2465, 3, array( 510, 924, 1350, 1620)), //
|
|
|
522 |
array(149, 2611, 3, array( 540, 980, 1440, 1710)), //
|
|
|
523 |
array(153, 2761, 3, array( 570, 1036, 1530, 1800)), //
|
|
|
524 |
array(157, 2876, 0, array( 570, 1064, 1590, 1890)), // 35
|
|
|
525 |
array(161, 3034, 0, array( 600, 1120, 1680, 1980)), //
|
|
|
526 |
array(165, 3196, 0, array( 630, 1204, 1770, 2100)), //
|
|
|
527 |
array(169, 3362, 0, array( 660, 1260, 1860, 2220)), //
|
|
|
528 |
array(173, 3532, 0, array( 720, 1316, 1950, 2310)), //
|
|
|
529 |
array(177, 3706, 0, array( 750, 1372, 2040, 2430)) // 40
|
|
|
530 |
);
|
|
|
531 |
|
|
|
532 |
/**
|
|
|
533 |
* @var array Length indicator
|
|
|
534 |
* @access protected
|
|
|
535 |
*/
|
|
|
536 |
protected $lengthTableBits = array(
|
|
|
537 |
array(10, 12, 14),
|
|
|
538 |
array( 9, 11, 13),
|
|
|
539 |
array( 8, 16, 16),
|
|
|
540 |
array( 8, 10, 12)
|
|
|
541 |
);
|
|
|
542 |
|
|
|
543 |
/**
|
|
|
544 |
* @var array Table of the error correction code (Reed-Solomon block)
|
|
|
545 |
* See Table 12-16 (pp.30-36), JIS X0510:2004.
|
|
|
546 |
* @access protected
|
|
|
547 |
*/
|
|
|
548 |
protected $eccTable = array(
|
|
|
549 |
array(array( 0, 0), array( 0, 0), array( 0, 0), array( 0, 0)), //
|
|
|
550 |
array(array( 1, 0), array( 1, 0), array( 1, 0), array( 1, 0)), // 1
|
|
|
551 |
array(array( 1, 0), array( 1, 0), array( 1, 0), array( 1, 0)), //
|
|
|
552 |
array(array( 1, 0), array( 1, 0), array( 2, 0), array( 2, 0)), //
|
|
|
553 |
array(array( 1, 0), array( 2, 0), array( 2, 0), array( 4, 0)), //
|
|
|
554 |
array(array( 1, 0), array( 2, 0), array( 2, 2), array( 2, 2)), // 5
|
|
|
555 |
array(array( 2, 0), array( 4, 0), array( 4, 0), array( 4, 0)), //
|
|
|
556 |
array(array( 2, 0), array( 4, 0), array( 2, 4), array( 4, 1)), //
|
|
|
557 |
array(array( 2, 0), array( 2, 2), array( 4, 2), array( 4, 2)), //
|
|
|
558 |
array(array( 2, 0), array( 3, 2), array( 4, 4), array( 4, 4)), //
|
|
|
559 |
array(array( 2, 2), array( 4, 1), array( 6, 2), array( 6, 2)), // 10
|
|
|
560 |
array(array( 4, 0), array( 1, 4), array( 4, 4), array( 3, 8)), //
|
|
|
561 |
array(array( 2, 2), array( 6, 2), array( 4, 6), array( 7, 4)), //
|
|
|
562 |
array(array( 4, 0), array( 8, 1), array( 8, 4), array(12, 4)), //
|
|
|
563 |
array(array( 3, 1), array( 4, 5), array(11, 5), array(11, 5)), //
|
|
|
564 |
array(array( 5, 1), array( 5, 5), array( 5, 7), array(11, 7)), // 15
|
|
|
565 |
array(array( 5, 1), array( 7, 3), array(15, 2), array( 3, 13)), //
|
|
|
566 |
array(array( 1, 5), array(10, 1), array( 1, 15), array( 2, 17)), //
|
|
|
567 |
array(array( 5, 1), array( 9, 4), array(17, 1), array( 2, 19)), //
|
|
|
568 |
array(array( 3, 4), array( 3, 11), array(17, 4), array( 9, 16)), //
|
|
|
569 |
array(array( 3, 5), array( 3, 13), array(15, 5), array(15, 10)), // 20
|
|
|
570 |
array(array( 4, 4), array(17, 0), array(17, 6), array(19, 6)), //
|
|
|
571 |
array(array( 2, 7), array(17, 0), array( 7, 16), array(34, 0)), //
|
|
|
572 |
array(array( 4, 5), array( 4, 14), array(11, 14), array(16, 14)), //
|
|
|
573 |
array(array( 6, 4), array( 6, 14), array(11, 16), array(30, 2)), //
|
|
|
574 |
array(array( 8, 4), array( 8, 13), array( 7, 22), array(22, 13)), // 25
|
|
|
575 |
array(array(10, 2), array(19, 4), array(28, 6), array(33, 4)), //
|
|
|
576 |
array(array( 8, 4), array(22, 3), array( 8, 26), array(12, 28)), //
|
|
|
577 |
array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)), //
|
|
|
578 |
array(array( 7, 7), array(21, 7), array( 1, 37), array(19, 26)), //
|
|
|
579 |
array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), // 30
|
|
|
580 |
array(array(13, 3), array( 2, 29), array(42, 1), array(23, 28)), //
|
|
|
581 |
array(array(17, 0), array(10, 23), array(10, 35), array(19, 35)), //
|
|
|
582 |
array(array(17, 1), array(14, 21), array(29, 19), array(11, 46)), //
|
|
|
583 |
array(array(13, 6), array(14, 23), array(44, 7), array(59, 1)), //
|
|
|
584 |
array(array(12, 7), array(12, 26), array(39, 14), array(22, 41)), // 35
|
|
|
585 |
array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)), //
|
|
|
586 |
array(array(17, 4), array(29, 14), array(49, 10), array(24, 46)), //
|
|
|
587 |
array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)), //
|
|
|
588 |
array(array(20, 4), array(40, 7), array(43, 22), array(10, 67)), //
|
|
|
589 |
array(array(19, 6), array(18, 31), array(34, 34), array(20, 61)) // 40
|
|
|
590 |
);
|
|
|
591 |
|
|
|
592 |
/**
|
|
|
593 |
* @var array Positions of alignment patterns.
|
|
|
594 |
* 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.
|
|
|
595 |
* See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
|
|
|
596 |
* @access protected
|
|
|
597 |
*/
|
|
|
598 |
protected $alignmentPattern = array(
|
|
|
599 |
array( 0, 0),
|
|
|
600 |
array( 0, 0), array(18, 0), array(22, 0), array(26, 0), array(30, 0), // 1- 5
|
|
|
601 |
array(34, 0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
|
|
|
602 |
array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), // 11-15
|
|
|
603 |
array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), // 16-20
|
|
|
604 |
array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), // 21-25
|
|
|
605 |
array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), // 26-30
|
|
|
606 |
array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), // 31-35
|
|
|
607 |
array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58) // 35-40
|
|
|
608 |
);
|
|
|
609 |
|
|
|
610 |
/**
|
|
|
611 |
* @var array Version information pattern (BCH coded).
|
|
|
612 |
* See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
|
|
|
613 |
* size: [QRSPEC_VERSION_MAX - 6]
|
|
|
614 |
* @access protected
|
|
|
615 |
*/
|
|
|
616 |
protected $versionPattern = array(
|
|
|
617 |
0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d, //
|
|
|
618 |
0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9, //
|
|
|
619 |
0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75, //
|
|
|
620 |
0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64, //
|
|
|
621 |
0x27541, 0x28c69
|
|
|
622 |
);
|
|
|
623 |
|
|
|
624 |
/**
|
|
|
625 |
* @var array Format information
|
|
|
626 |
* @access protected
|
|
|
627 |
*/
|
|
|
628 |
protected $formatInfo = array(
|
|
|
629 |
array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976), //
|
|
|
630 |
array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0), //
|
|
|
631 |
array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed), //
|
|
|
632 |
array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b) //
|
|
|
633 |
);
|
|
|
634 |
|
|
|
635 |
|
|
|
636 |
// -------------------------------------------------
|
|
|
637 |
// -------------------------------------------------
|
|
|
638 |
|
|
|
639 |
|
|
|
640 |
/**
|
|
|
641 |
* This is the class constructor.
|
|
|
642 |
* Creates a QRcode object
|
|
|
643 |
* @param string $code code to represent using QRcode
|
|
|
644 |
* @param string $eclevel error level: <ul><li>L : About 7% or less errors can be corrected.</li><li>M : About 15% or less errors can be corrected.</li><li>Q : About 25% or less errors can be corrected.</li><li>H : About 30% or less errors can be corrected.</li></ul>
|
|
|
645 |
* @access public
|
|
|
646 |
* @since 1.0.000
|
|
|
647 |
*/
|
|
|
648 |
public function __construct($code, $eclevel = 'L') {
|
|
|
649 |
$barcode_array = array();
|
|
|
650 |
if ((is_null($code)) OR ($code == '\0') OR ($code == '')) {
|
|
|
651 |
return false;
|
|
|
652 |
}
|
|
|
653 |
// set error correction level
|
|
|
654 |
$this->level = array_search($eclevel, array('L', 'M', 'Q', 'H'));
|
|
|
655 |
if ($this->level === false) {
|
|
|
656 |
$this->level = QR_ECLEVEL_L;
|
|
|
657 |
}
|
|
|
658 |
if (($this->hint != QR_MODE_8B) AND ($this->hint != QR_MODE_KJ)) {
|
|
|
659 |
return false;
|
|
|
660 |
}
|
|
|
661 |
if (($this->version < 0) OR ($this->version > QRSPEC_VERSION_MAX)) {
|
|
|
662 |
return false;
|
|
|
663 |
}
|
|
|
664 |
$this->items = array();
|
|
|
665 |
$this->encodeString($code);
|
|
|
666 |
if (is_null($this->data)) {
|
|
|
667 |
return false;
|
|
|
668 |
}
|
|
|
669 |
$qrTab = $this->binarize($this->data);
|
|
|
670 |
$size = count($qrTab);
|
|
|
671 |
$barcode_array['num_rows'] = $size;
|
|
|
672 |
$barcode_array['num_cols'] = $size;
|
|
|
673 |
$barcode_array['bcode'] = array();
|
|
|
674 |
foreach ($qrTab as $line) {
|
|
|
675 |
$arrAdd = array();
|
|
|
676 |
foreach (str_split($line) as $char) {
|
|
|
677 |
$arrAdd[] = ($char=='1')?1:0;
|
|
|
678 |
}
|
|
|
679 |
$barcode_array['bcode'][] = $arrAdd;
|
|
|
680 |
}
|
|
|
681 |
$this->barcode_array = $barcode_array;
|
|
|
682 |
}
|
|
|
683 |
|
|
|
684 |
/**
|
|
|
685 |
* Returns a barcode array which is readable by TCPDF
|
|
|
686 |
* @return array barcode array readable by TCPDF;
|
|
|
687 |
* @access public
|
|
|
688 |
*/
|
|
|
689 |
public function getBarcodeArray() {
|
|
|
690 |
return $this->barcode_array;
|
|
|
691 |
}
|
|
|
692 |
|
|
|
693 |
/**
|
|
|
694 |
* Convert the frame in binary form
|
|
|
695 |
* @param array $frame array to binarize
|
|
|
696 |
* @return array frame in binary form
|
|
|
697 |
*/
|
|
|
698 |
protected function binarize($frame) {
|
|
|
699 |
$len = count($frame);
|
|
|
700 |
// the frame is square (width = height)
|
|
|
701 |
foreach ($frame as &$frameLine) {
|
|
|
702 |
for ($i=0; $i<$len; $i++) {
|
|
|
703 |
$frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
|
|
|
704 |
}
|
|
|
705 |
}
|
|
|
706 |
return $frame;
|
|
|
707 |
}
|
|
|
708 |
|
|
|
709 |
/**
|
|
|
710 |
* Encode the input string to QR code
|
|
|
711 |
* @param string $string input string to encode
|
|
|
712 |
*/
|
|
|
713 |
protected function encodeString($string) {
|
|
|
714 |
$this->dataStr = $string;
|
|
|
715 |
if (!$this->casesensitive) {
|
|
|
716 |
$this->toUpper();
|
|
|
717 |
}
|
|
|
718 |
$ret = $this->splitString();
|
|
|
719 |
if ($ret < 0) {
|
|
|
720 |
return NULL;
|
|
|
721 |
}
|
|
|
722 |
$this->encodeMask(-1);
|
|
|
723 |
}
|
|
|
724 |
|
|
|
725 |
/**
|
|
|
726 |
* Encode mask
|
|
|
727 |
* @param int $mask masking mode
|
|
|
728 |
*/
|
|
|
729 |
protected function encodeMask($mask) {
|
|
|
730 |
$spec = array(0, 0, 0, 0, 0);
|
|
|
731 |
$this->datacode = $this->getByteStream($this->items);
|
|
|
732 |
if (is_null($this->datacode)) {
|
|
|
733 |
return NULL;
|
|
|
734 |
}
|
|
|
735 |
$spec = $this->getEccSpec($this->version, $this->level, $spec);
|
|
|
736 |
$this->b1 = $this->rsBlockNum1($spec);
|
|
|
737 |
$this->dataLength = $this->rsDataLength($spec);
|
|
|
738 |
$this->eccLength = $this->rsEccLength($spec);
|
|
|
739 |
$this->ecccode = array_fill(0, $this->eccLength, 0);
|
|
|
740 |
$this->blocks = $this->rsBlockNum($spec);
|
|
|
741 |
$ret = $this->init($spec);
|
|
|
742 |
if ($ret < 0) {
|
|
|
743 |
return NULL;
|
|
|
744 |
}
|
|
|
745 |
$this->count = 0;
|
|
|
746 |
$this->width = $this->getWidth($this->version);
|
|
|
747 |
$this->frame = $this->newFrame($this->version);
|
|
|
748 |
$this->x = $this->width - 1;
|
|
|
749 |
$this->y = $this->width - 1;
|
|
|
750 |
$this->dir = -1;
|
|
|
751 |
$this->bit = -1;
|
|
|
752 |
// inteleaved data and ecc codes
|
|
|
753 |
for ($i=0; $i < ($this->dataLength + $this->eccLength); $i++) {
|
|
|
754 |
$code = $this->getCode();
|
|
|
755 |
$bit = 0x80;
|
|
|
756 |
for ($j=0; $j<8; $j++) {
|
|
|
757 |
$addr = $this->getNextPosition();
|
|
|
758 |
$this->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
|
|
|
759 |
$bit = $bit >> 1;
|
|
|
760 |
}
|
|
|
761 |
}
|
|
|
762 |
// remainder bits
|
|
|
763 |
$j = $this->getRemainder($this->version);
|
|
|
764 |
for ($i=0; $i<$j; $i++) {
|
|
|
765 |
$addr = $this->getNextPosition();
|
|
|
766 |
$this->setFrameAt($addr, 0x02);
|
|
|
767 |
}
|
|
|
768 |
// masking
|
|
|
769 |
$this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
|
|
|
770 |
if ($mask < 0) {
|
|
|
771 |
if (QR_FIND_BEST_MASK) {
|
|
|
772 |
$masked = $this->mask($this->width, $this->frame, $this->level);
|
|
|
773 |
} else {
|
|
|
774 |
$masked = $this->makeMask($this->width, $this->frame, (intval(QR_DEFAULT_MASK) % 8), $this->level);
|
|
|
775 |
}
|
|
|
776 |
} else {
|
|
|
777 |
$masked = $this->makeMask($this->width, $this->frame, $mask, $this->level);
|
|
|
778 |
}
|
|
|
779 |
if ($masked == NULL) {
|
|
|
780 |
return NULL;
|
|
|
781 |
}
|
|
|
782 |
$this->data = $masked;
|
|
|
783 |
}
|
|
|
784 |
|
|
|
785 |
// - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
786 |
|
|
|
787 |
// FrameFiller
|
|
|
788 |
|
|
|
789 |
/**
|
|
|
790 |
* Set frame value at specified position
|
|
|
791 |
* @param array $at x,y position
|
|
|
792 |
* @param int $val value of the character to set
|
|
|
793 |
*/
|
|
|
794 |
protected function setFrameAt($at, $val) {
|
|
|
795 |
$this->frame[$at['y']][$at['x']] = chr($val);
|
|
|
796 |
}
|
|
|
797 |
|
|
|
798 |
/**
|
|
|
799 |
* Get frame value at specified position
|
|
|
800 |
* @param array $at x,y position
|
|
|
801 |
* @return value at specified position
|
|
|
802 |
*/
|
|
|
803 |
protected function getFrameAt($at) {
|
|
|
804 |
return ord($this->frame[$at['y']][$at['x']]);
|
|
|
805 |
}
|
|
|
806 |
|
|
|
807 |
/**
|
|
|
808 |
* Return the next frame position
|
|
|
809 |
* @return array of x,y coordinates
|
|
|
810 |
*/
|
|
|
811 |
protected function getNextPosition() {
|
|
|
812 |
do {
|
|
|
813 |
if ($this->bit == -1) {
|
|
|
814 |
$this->bit = 0;
|
|
|
815 |
return array('x'=>$this->x, 'y'=>$this->y);
|
|
|
816 |
}
|
|
|
817 |
$x = $this->x;
|
|
|
818 |
$y = $this->y;
|
|
|
819 |
$w = $this->width;
|
|
|
820 |
if ($this->bit == 0) {
|
|
|
821 |
$x--;
|
|
|
822 |
$this->bit++;
|
|
|
823 |
} else {
|
|
|
824 |
$x++;
|
|
|
825 |
$y += $this->dir;
|
|
|
826 |
$this->bit--;
|
|
|
827 |
}
|
|
|
828 |
if ($this->dir < 0) {
|
|
|
829 |
if ($y < 0) {
|
|
|
830 |
$y = 0;
|
|
|
831 |
$x -= 2;
|
|
|
832 |
$this->dir = 1;
|
|
|
833 |
if ($x == 6) {
|
|
|
834 |
$x--;
|
|
|
835 |
$y = 9;
|
|
|
836 |
}
|
|
|
837 |
}
|
|
|
838 |
} else {
|
|
|
839 |
if ($y == $w) {
|
|
|
840 |
$y = $w - 1;
|
|
|
841 |
$x -= 2;
|
|
|
842 |
$this->dir = -1;
|
|
|
843 |
if ($x == 6) {
|
|
|
844 |
$x--;
|
|
|
845 |
$y -= 8;
|
|
|
846 |
}
|
|
|
847 |
}
|
|
|
848 |
}
|
|
|
849 |
if (($x < 0) OR ($y < 0)) {
|
|
|
850 |
return NULL;
|
|
|
851 |
}
|
|
|
852 |
$this->x = $x;
|
|
|
853 |
$this->y = $y;
|
|
|
854 |
} while(ord($this->frame[$y][$x]) & 0x80);
|
|
|
855 |
return array('x'=>$x, 'y'=>$y);
|
|
|
856 |
}
|
|
|
857 |
|
|
|
858 |
// - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
859 |
|
|
|
860 |
// QRrawcode
|
|
|
861 |
|
|
|
862 |
/**
|
|
|
863 |
* Initialize code.
|
|
|
864 |
* @param array $spec array of ECC specification
|
|
|
865 |
* @return 0 in case of success, -1 in case of error
|
|
|
866 |
*/
|
|
|
867 |
protected function init($spec) {
|
|
|
868 |
$dl = $this->rsDataCodes1($spec);
|
|
|
869 |
$el = $this->rsEccCodes1($spec);
|
|
|
870 |
$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
|
|
|
871 |
$blockNo = 0;
|
|
|
872 |
$dataPos = 0;
|
|
|
873 |
$eccPos = 0;
|
|
|
874 |
$endfor = $this->rsBlockNum1($spec);
|
|
|
875 |
for ($i=0; $i < $endfor; ++$i) {
|
|
|
876 |
$ecc = array_slice($this->ecccode, $eccPos);
|
|
|
877 |
$this->rsblocks[$blockNo] = array();
|
|
|
878 |
$this->rsblocks[$blockNo]['dataLength'] = $dl;
|
|
|
879 |
$this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
|
|
|
880 |
$this->rsblocks[$blockNo]['eccLength'] = $el;
|
|
|
881 |
$ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
|
|
|
882 |
$this->rsblocks[$blockNo]['ecc'] = $ecc;
|
|
|
883 |
$this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
|
|
|
884 |
$dataPos += $dl;
|
|
|
885 |
$eccPos += $el;
|
|
|
886 |
$blockNo++;
|
|
|
887 |
}
|
|
|
888 |
if ($this->rsBlockNum2($spec) == 0) {
|
|
|
889 |
return 0;
|
|
|
890 |
}
|
|
|
891 |
$dl = $this->rsDataCodes2($spec);
|
|
|
892 |
$el = $this->rsEccCodes2($spec);
|
|
|
893 |
$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
|
|
|
894 |
if ($rs == NULL) {
|
|
|
895 |
return -1;
|
|
|
896 |
}
|
|
|
897 |
$endfor = $this->rsBlockNum2($spec);
|
|
|
898 |
for ($i=0; $i < $endfor; ++$i) {
|
|
|
899 |
$ecc = array_slice($this->ecccode, $eccPos);
|
|
|
900 |
$this->rsblocks[$blockNo] = array();
|
|
|
901 |
$this->rsblocks[$blockNo]['dataLength'] = $dl;
|
|
|
902 |
$this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
|
|
|
903 |
$this->rsblocks[$blockNo]['eccLength'] = $el;
|
|
|
904 |
$ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
|
|
|
905 |
$this->rsblocks[$blockNo]['ecc'] = $ecc;
|
|
|
906 |
$this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
|
|
|
907 |
$dataPos += $dl;
|
|
|
908 |
$eccPos += $el;
|
|
|
909 |
$blockNo++;
|
|
|
910 |
}
|
|
|
911 |
return 0;
|
|
|
912 |
}
|
|
|
913 |
|
|
|
914 |
/**
|
|
|
915 |
* Return Reed-Solomon block code.
|
|
|
916 |
* @return array rsblocks
|
|
|
917 |
*/
|
|
|
918 |
protected function getCode() {
|
|
|
919 |
if ($this->count < $this->dataLength) {
|
|
|
920 |
$row = $this->count % $this->blocks;
|
|
|
921 |
$col = $this->count / $this->blocks;
|
|
|
922 |
if ($col >= $this->rsblocks[0]['dataLength']) {
|
|
|
923 |
$row += $this->b1;
|
|
|
924 |
}
|
|
|
925 |
$ret = $this->rsblocks[$row]['data'][$col];
|
|
|
926 |
} elseif ($this->count < $this->dataLength + $this->eccLength) {
|
|
|
927 |
$row = ($this->count - $this->dataLength) % $this->blocks;
|
|
|
928 |
$col = ($this->count - $this->dataLength) / $this->blocks;
|
|
|
929 |
$ret = $this->rsblocks[$row]['ecc'][$col];
|
|
|
930 |
} else {
|
|
|
931 |
return 0;
|
|
|
932 |
}
|
|
|
933 |
$this->count++;
|
|
|
934 |
return $ret;
|
|
|
935 |
}
|
|
|
936 |
|
|
|
937 |
// - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
938 |
|
|
|
939 |
// QRmask
|
|
|
940 |
|
|
|
941 |
/**
|
|
|
942 |
* Write Format Information on frame and returns the number of black bits
|
|
|
943 |
* @param int $width frame width
|
|
|
944 |
* @param array $frame frame
|
|
|
945 |
* @param array $mask masking mode
|
|
|
946 |
* @param int $level error correction level
|
|
|
947 |
* @return int blacks
|
|
|
948 |
*/
|
|
|
949 |
protected function writeFormatInformation($width, &$frame, $mask, $level) {
|
|
|
950 |
$blacks = 0;
|
|
|
951 |
$format = $this->getFormatInfo($mask, $level);
|
|
|
952 |
for ($i=0; $i<8; ++$i) {
|
|
|
953 |
if ($format & 1) {
|
|
|
954 |
$blacks += 2;
|
|
|
955 |
$v = 0x85;
|
|
|
956 |
} else {
|
|
|
957 |
$v = 0x84;
|
|
|
958 |
}
|
|
|
959 |
$frame[8][$width - 1 - $i] = chr($v);
|
|
|
960 |
if ($i < 6) {
|
|
|
961 |
$frame[$i][8] = chr($v);
|
|
|
962 |
} else {
|
|
|
963 |
$frame[$i + 1][8] = chr($v);
|
|
|
964 |
}
|
|
|
965 |
$format = $format >> 1;
|
|
|
966 |
}
|
|
|
967 |
for ($i=0; $i<7; ++$i) {
|
|
|
968 |
if ($format & 1) {
|
|
|
969 |
$blacks += 2;
|
|
|
970 |
$v = 0x85;
|
|
|
971 |
} else {
|
|
|
972 |
$v = 0x84;
|
|
|
973 |
}
|
|
|
974 |
$frame[$width - 7 + $i][8] = chr($v);
|
|
|
975 |
if ($i == 0) {
|
|
|
976 |
$frame[8][7] = chr($v);
|
|
|
977 |
} else {
|
|
|
978 |
$frame[8][6 - $i] = chr($v);
|
|
|
979 |
}
|
|
|
980 |
$format = $format >> 1;
|
|
|
981 |
}
|
|
|
982 |
return $blacks;
|
|
|
983 |
}
|
|
|
984 |
|
|
|
985 |
/**
|
|
|
986 |
* mask0
|
|
|
987 |
* @param int $x X position
|
|
|
988 |
* @param int $y Y position
|
|
|
989 |
* @return int mask
|
|
|
990 |
*/
|
|
|
991 |
protected function mask0($x, $y) {
|
|
|
992 |
return ($x + $y) & 1;
|
|
|
993 |
}
|
|
|
994 |
|
|
|
995 |
/**
|
|
|
996 |
* mask1
|
|
|
997 |
* @param int $x X position
|
|
|
998 |
* @param int $y Y position
|
|
|
999 |
* @return int mask
|
|
|
1000 |
*/
|
|
|
1001 |
protected function mask1($x, $y) {
|
|
|
1002 |
return ($y & 1);
|
|
|
1003 |
}
|
|
|
1004 |
|
|
|
1005 |
/**
|
|
|
1006 |
* mask2
|
|
|
1007 |
* @param int $x X position
|
|
|
1008 |
* @param int $y Y position
|
|
|
1009 |
* @return int mask
|
|
|
1010 |
*/
|
|
|
1011 |
protected function mask2($x, $y) {
|
|
|
1012 |
return ($x % 3);
|
|
|
1013 |
}
|
|
|
1014 |
|
|
|
1015 |
/**
|
|
|
1016 |
* mask3
|
|
|
1017 |
* @param int $x X position
|
|
|
1018 |
* @param int $y Y position
|
|
|
1019 |
* @return int mask
|
|
|
1020 |
*/
|
|
|
1021 |
protected function mask3($x, $y) {
|
|
|
1022 |
return ($x + $y) % 3;
|
|
|
1023 |
}
|
|
|
1024 |
|
|
|
1025 |
/**
|
|
|
1026 |
* mask4
|
|
|
1027 |
* @param int $x X position
|
|
|
1028 |
* @param int $y Y position
|
|
|
1029 |
* @return int mask
|
|
|
1030 |
*/
|
|
|
1031 |
protected function mask4($x, $y) {
|
|
|
1032 |
return (((int)($y / 2)) + ((int)($x / 3))) & 1;
|
|
|
1033 |
}
|
|
|
1034 |
|
|
|
1035 |
/**
|
|
|
1036 |
* mask5
|
|
|
1037 |
* @param int $x X position
|
|
|
1038 |
* @param int $y Y position
|
|
|
1039 |
* @return int mask
|
|
|
1040 |
*/
|
|
|
1041 |
protected function mask5($x, $y) {
|
|
|
1042 |
return (($x * $y) & 1) + ($x * $y) % 3;
|
|
|
1043 |
}
|
|
|
1044 |
|
|
|
1045 |
/**
|
|
|
1046 |
* mask6
|
|
|
1047 |
* @param int $x X position
|
|
|
1048 |
* @param int $y Y position
|
|
|
1049 |
* @return int mask
|
|
|
1050 |
*/
|
|
|
1051 |
protected function mask6($x, $y) {
|
|
|
1052 |
return ((($x * $y) & 1) + ($x * $y) % 3) & 1;
|
|
|
1053 |
}
|
|
|
1054 |
|
|
|
1055 |
/**
|
|
|
1056 |
* mask7
|
|
|
1057 |
* @param int $x X position
|
|
|
1058 |
* @param int $y Y position
|
|
|
1059 |
* @return int mask
|
|
|
1060 |
*/
|
|
|
1061 |
protected function mask7($x, $y) {
|
|
|
1062 |
return ((($x * $y) % 3) + (($x + $y) & 1)) & 1;
|
|
|
1063 |
}
|
|
|
1064 |
|
|
|
1065 |
/**
|
|
|
1066 |
* Return bitmask
|
|
|
1067 |
* @param int $maskNo mask number
|
|
|
1068 |
* @param int $width width
|
|
|
1069 |
* @param array $frame frame
|
|
|
1070 |
* @return array bitmask
|
|
|
1071 |
*/
|
|
|
1072 |
protected function generateMaskNo($maskNo, $width, $frame) {
|
|
|
1073 |
$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
|
|
|
1074 |
for ($y=0; $y<$width; ++$y) {
|
|
|
1075 |
for ($x=0; $x<$width; ++$x) {
|
|
|
1076 |
if (ord($frame[$y][$x]) & 0x80) {
|
|
|
1077 |
$bitMask[$y][$x] = 0;
|
|
|
1078 |
} else {
|
|
|
1079 |
$maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
|
|
|
1080 |
$bitMask[$y][$x] = ($maskFunc == 0)?1:0;
|
|
|
1081 |
}
|
|
|
1082 |
}
|
|
|
1083 |
}
|
|
|
1084 |
return $bitMask;
|
|
|
1085 |
}
|
|
|
1086 |
|
|
|
1087 |
/**
|
|
|
1088 |
* makeMaskNo
|
|
|
1089 |
* @param int $maskNo
|
|
|
1090 |
* @param int $width
|
|
|
1091 |
* @param int $s
|
|
|
1092 |
* @param int $d
|
|
|
1093 |
* @param boolean $maskGenOnly
|
|
|
1094 |
* @return int b
|
|
|
1095 |
*/
|
|
|
1096 |
protected function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly=false) {
|
|
|
1097 |
$b = 0;
|
|
|
1098 |
$bitMask = array();
|
|
|
1099 |
$bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
|
|
|
1100 |
if ($maskGenOnly) {
|
|
|
1101 |
return;
|
|
|
1102 |
}
|
|
|
1103 |
$d = $s;
|
|
|
1104 |
for ($y=0; $y<$width; ++$y) {
|
|
|
1105 |
for ($x=0; $x<$width; ++$x) {
|
|
|
1106 |
if ($bitMask[$y][$x] == 1) {
|
|
|
1107 |
$d[$y][$x] = chr(ord($s[$y][$x]) ^ ((int)($bitMask[$y][$x])));
|
|
|
1108 |
}
|
|
|
1109 |
$b += (int)(ord($d[$y][$x]) & 1);
|
|
|
1110 |
}
|
|
|
1111 |
}
|
|
|
1112 |
return $b;
|
|
|
1113 |
}
|
|
|
1114 |
|
|
|
1115 |
/**
|
|
|
1116 |
* makeMask
|
|
|
1117 |
* @param int $width
|
|
|
1118 |
* @param array $frame
|
|
|
1119 |
* @param int $maskNo
|
|
|
1120 |
* @param int $level
|
|
|
1121 |
* @return array mask
|
|
|
1122 |
*/
|
|
|
1123 |
protected function makeMask($width, $frame, $maskNo, $level) {
|
|
|
1124 |
$masked = array_fill(0, $width, str_repeat("\0", $width));
|
|
|
1125 |
$this->makeMaskNo($maskNo, $width, $frame, $masked);
|
|
|
1126 |
$this->writeFormatInformation($width, $masked, $maskNo, $level);
|
|
|
1127 |
return $masked;
|
|
|
1128 |
}
|
|
|
1129 |
|
|
|
1130 |
/**
|
|
|
1131 |
* calcN1N3
|
|
|
1132 |
* @param int $length
|
|
|
1133 |
* @return int demerit
|
|
|
1134 |
*/
|
|
|
1135 |
protected function calcN1N3($length) {
|
|
|
1136 |
$demerit = 0;
|
|
|
1137 |
for ($i=0; $i<$length; ++$i) {
|
|
|
1138 |
if ($this->runLength[$i] >= 5) {
|
|
|
1139 |
$demerit += (N1 + ($this->runLength[$i] - 5));
|
|
|
1140 |
}
|
|
|
1141 |
if ($i & 1) {
|
|
|
1142 |
if (($i >= 3) AND ($i < ($length-2)) AND ($this->runLength[$i] % 3 == 0)) {
|
|
|
1143 |
$fact = (int)($this->runLength[$i] / 3);
|
|
|
1144 |
if (($this->runLength[$i-2] == $fact)
|
|
|
1145 |
AND ($this->runLength[$i-1] == $fact)
|
|
|
1146 |
AND ($this->runLength[$i+1] == $fact)
|
|
|
1147 |
AND ($this->runLength[$i+2] == $fact)) {
|
|
|
1148 |
if (($this->runLength[$i-3] < 0) OR ($this->runLength[$i-3] >= (4 * $fact))) {
|
|
|
1149 |
$demerit += N3;
|
|
|
1150 |
} elseif ((($i+3) >= $length) OR ($this->runLength[$i+3] >= (4 * $fact))) {
|
|
|
1151 |
$demerit += N3;
|
|
|
1152 |
}
|
|
|
1153 |
}
|
|
|
1154 |
}
|
|
|
1155 |
}
|
|
|
1156 |
}
|
|
|
1157 |
return $demerit;
|
|
|
1158 |
}
|
|
|
1159 |
|
|
|
1160 |
/**
|
|
|
1161 |
* evaluateSymbol
|
|
|
1162 |
* @param int $width
|
|
|
1163 |
* @param array $frame
|
|
|
1164 |
* @return int demerit
|
|
|
1165 |
*/
|
|
|
1166 |
protected function evaluateSymbol($width, $frame) {
|
|
|
1167 |
$head = 0;
|
|
|
1168 |
$demerit = 0;
|
|
|
1169 |
for ($y=0; $y<$width; ++$y) {
|
|
|
1170 |
$head = 0;
|
|
|
1171 |
$this->runLength[0] = 1;
|
|
|
1172 |
$frameY = $frame[$y];
|
|
|
1173 |
if ($y > 0) {
|
|
|
1174 |
$frameYM = $frame[$y-1];
|
|
|
1175 |
}
|
|
|
1176 |
for ($x=0; $x<$width; ++$x) {
|
|
|
1177 |
if (($x > 0) AND ($y > 0)) {
|
|
|
1178 |
$b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
|
|
|
1179 |
$w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
|
|
|
1180 |
if (($b22 | ($w22 ^ 1)) & 1) {
|
|
|
1181 |
$demerit += N2;
|
|
|
1182 |
}
|
|
|
1183 |
}
|
|
|
1184 |
if (($x == 0) AND (ord($frameY[$x]) & 1)) {
|
|
|
1185 |
$this->runLength[0] = -1;
|
|
|
1186 |
$head = 1;
|
|
|
1187 |
$this->runLength[$head] = 1;
|
|
|
1188 |
} elseif ($x > 0) {
|
|
|
1189 |
if ((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
|
|
|
1190 |
$head++;
|
|
|
1191 |
$this->runLength[$head] = 1;
|
|
|
1192 |
} else {
|
|
|
1193 |
$this->runLength[$head]++;
|
|
|
1194 |
}
|
|
|
1195 |
}
|
|
|
1196 |
}
|
|
|
1197 |
$demerit += $this->calcN1N3($head+1);
|
|
|
1198 |
}
|
|
|
1199 |
for ($x=0; $x<$width; ++$x) {
|
|
|
1200 |
$head = 0;
|
|
|
1201 |
$this->runLength[0] = 1;
|
|
|
1202 |
for ($y=0; $y<$width; ++$y) {
|
|
|
1203 |
if (($y == 0) AND (ord($frame[$y][$x]) & 1)) {
|
|
|
1204 |
$this->runLength[0] = -1;
|
|
|
1205 |
$head = 1;
|
|
|
1206 |
$this->runLength[$head] = 1;
|
|
|
1207 |
} elseif ($y > 0) {
|
|
|
1208 |
if ((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
|
|
|
1209 |
$head++;
|
|
|
1210 |
$this->runLength[$head] = 1;
|
|
|
1211 |
} else {
|
|
|
1212 |
$this->runLength[$head]++;
|
|
|
1213 |
}
|
|
|
1214 |
}
|
|
|
1215 |
}
|
|
|
1216 |
$demerit += $this->calcN1N3($head+1);
|
|
|
1217 |
}
|
|
|
1218 |
return $demerit;
|
|
|
1219 |
}
|
|
|
1220 |
|
|
|
1221 |
/**
|
|
|
1222 |
* mask
|
|
|
1223 |
* @param int $width
|
|
|
1224 |
* @param array $frame
|
|
|
1225 |
* @param int $level
|
|
|
1226 |
* @return array best mask
|
|
|
1227 |
*/
|
|
|
1228 |
protected function mask($width, $frame, $level) {
|
|
|
1229 |
$minDemerit = PHP_INT_MAX;
|
|
|
1230 |
$bestMaskNum = 0;
|
|
|
1231 |
$bestMask = array();
|
|
|
1232 |
$checked_masks = array(0, 1, 2, 3, 4, 5, 6, 7);
|
|
|
1233 |
if (QR_FIND_FROM_RANDOM !== false) {
|
|
|
1234 |
$howManuOut = 8 - (QR_FIND_FROM_RANDOM % 9);
|
|
|
1235 |
for ($i = 0; $i < $howManuOut; ++$i) {
|
|
|
1236 |
$remPos = rand (0, count($checked_masks)-1);
|
|
|
1237 |
unset($checked_masks[$remPos]);
|
|
|
1238 |
$checked_masks = array_values($checked_masks);
|
|
|
1239 |
}
|
|
|
1240 |
}
|
|
|
1241 |
$bestMask = $frame;
|
|
|
1242 |
foreach ($checked_masks as $i) {
|
|
|
1243 |
$mask = array_fill(0, $width, str_repeat("\0", $width));
|
|
|
1244 |
$demerit = 0;
|
|
|
1245 |
$blacks = 0;
|
|
|
1246 |
$blacks = $this->makeMaskNo($i, $width, $frame, $mask);
|
|
|
1247 |
$blacks += $this->writeFormatInformation($width, $mask, $i, $level);
|
|
|
1248 |
$blacks = (int)(100 * $blacks / ($width * $width));
|
|
|
1249 |
$demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
|
|
|
1250 |
$demerit += $this->evaluateSymbol($width, $mask);
|
|
|
1251 |
if ($demerit < $minDemerit) {
|
|
|
1252 |
$minDemerit = $demerit;
|
|
|
1253 |
$bestMask = $mask;
|
|
|
1254 |
$bestMaskNum = $i;
|
|
|
1255 |
}
|
|
|
1256 |
}
|
|
|
1257 |
return $bestMask;
|
|
|
1258 |
}
|
|
|
1259 |
|
|
|
1260 |
// - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
1261 |
|
|
|
1262 |
// QRsplit
|
|
|
1263 |
|
|
|
1264 |
/**
|
|
|
1265 |
* Return true if the character at specified position is a number
|
|
|
1266 |
* @param string $str string
|
|
|
1267 |
* @param int $pos characted position
|
|
|
1268 |
* @return boolean true of false
|
|
|
1269 |
*/
|
|
|
1270 |
protected function isdigitat($str, $pos) {
|
|
|
1271 |
if ($pos >= strlen($str)) {
|
|
|
1272 |
return false;
|
|
|
1273 |
}
|
|
|
1274 |
return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
|
|
|
1275 |
}
|
|
|
1276 |
|
|
|
1277 |
/**
|
|
|
1278 |
* Return true if the character at specified position is an alphanumeric character
|
|
|
1279 |
* @param string $str string
|
|
|
1280 |
* @param int $pos characted position
|
|
|
1281 |
* @return boolean true of false
|
|
|
1282 |
*/
|
|
|
1283 |
protected function isalnumat($str, $pos) {
|
|
|
1284 |
if ($pos >= strlen($str)) {
|
|
|
1285 |
return false;
|
|
|
1286 |
}
|
|
|
1287 |
return ($this->lookAnTable(ord($str[$pos])) >= 0);
|
|
|
1288 |
}
|
|
|
1289 |
|
|
|
1290 |
/**
|
|
|
1291 |
* identifyMode
|
|
|
1292 |
* @param int $pos
|
|
|
1293 |
* @return int mode
|
|
|
1294 |
*/
|
|
|
1295 |
protected function identifyMode($pos) {
|
|
|
1296 |
if ($pos >= strlen($this->dataStr)) {
|
|
|
1297 |
return QR_MODE_NL;
|
|
|
1298 |
}
|
|
|
1299 |
$c = $this->dataStr[$pos];
|
|
|
1300 |
if ($this->isdigitat($this->dataStr, $pos)) {
|
|
|
1301 |
return QR_MODE_NM;
|
|
|
1302 |
} elseif ($this->isalnumat($this->dataStr, $pos)) {
|
|
|
1303 |
return QR_MODE_AN;
|
|
|
1304 |
} elseif ($this->hint == QR_MODE_KJ) {
|
|
|
1305 |
if ($pos+1 < strlen($this->dataStr)) {
|
|
|
1306 |
$d = $this->dataStr[$pos+1];
|
|
|
1307 |
$word = (ord($c) << 8) | ord($d);
|
|
|
1308 |
if (($word >= 0x8140 && $word <= 0x9ffc) OR ($word >= 0xe040 && $word <= 0xebbf)) {
|
|
|
1309 |
return QR_MODE_KJ;
|
|
|
1310 |
}
|
|
|
1311 |
}
|
|
|
1312 |
}
|
|
|
1313 |
return QR_MODE_8B;
|
|
|
1314 |
}
|
|
|
1315 |
|
|
|
1316 |
/**
|
|
|
1317 |
* eatNum
|
|
|
1318 |
* @return int run
|
|
|
1319 |
*/
|
|
|
1320 |
protected function eatNum() {
|
|
|
1321 |
$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
|
|
|
1322 |
$p = 0;
|
|
|
1323 |
while($this->isdigitat($this->dataStr, $p)) {
|
|
|
1324 |
$p++;
|
|
|
1325 |
}
|
|
|
1326 |
$run = $p;
|
|
|
1327 |
$mode = $this->identifyMode($p);
|
|
|
1328 |
if ($mode == QR_MODE_8B) {
|
|
|
1329 |
$dif = $this->estimateBitsModeNum($run) + 4 + $ln
|
|
|
1330 |
+ $this->estimateBitsMode8(1) // + 4 + l8
|
|
|
1331 |
- $this->estimateBitsMode8($run + 1); // - 4 - l8
|
|
|
1332 |
if ($dif > 0) {
|
|
|
1333 |
return $this->eat8();
|
|
|
1334 |
}
|
|
|
1335 |
}
|
|
|
1336 |
if ($mode == QR_MODE_AN) {
|
|
|
1337 |
$dif = $this->estimateBitsModeNum($run) + 4 + $ln
|
|
|
1338 |
+ $this->estimateBitsModeAn(1) // + 4 + la
|
|
|
1339 |
- $this->estimateBitsModeAn($run + 1);// - 4 - la
|
|
|
1340 |
if ($dif > 0) {
|
|
|
1341 |
return $this->eatAn();
|
|
|
1342 |
}
|
|
|
1343 |
}
|
|
|
1344 |
$this->items = $this->appendNewInputItem($this->items, QR_MODE_NM, $run, str_split($this->dataStr));
|
|
|
1345 |
return $run;
|
|
|
1346 |
}
|
|
|
1347 |
|
|
|
1348 |
/**
|
|
|
1349 |
* eatAn
|
|
|
1350 |
* @return int run
|
|
|
1351 |
*/
|
|
|
1352 |
protected function eatAn() {
|
|
|
1353 |
$la = $this->lengthIndicator(QR_MODE_AN, $this->version);
|
|
|
1354 |
$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
|
|
|
1355 |
$p =1 ;
|
|
|
1356 |
while($this->isalnumat($this->dataStr, $p)) {
|
|
|
1357 |
if ($this->isdigitat($this->dataStr, $p)) {
|
|
|
1358 |
$q = $p;
|
|
|
1359 |
while($this->isdigitat($this->dataStr, $q)) {
|
|
|
1360 |
$q++;
|
|
|
1361 |
}
|
|
|
1362 |
$dif = $this->estimateBitsModeAn($p) // + 4 + la
|
|
|
1363 |
+ $this->estimateBitsModeNum($q - $p) + 4 + $ln
|
|
|
1364 |
- $this->estimateBitsModeAn($q); // - 4 - la
|
|
|
1365 |
if ($dif < 0) {
|
|
|
1366 |
break;
|
|
|
1367 |
} else {
|
|
|
1368 |
$p = $q;
|
|
|
1369 |
}
|
|
|
1370 |
} else {
|
|
|
1371 |
$p++;
|
|
|
1372 |
}
|
|
|
1373 |
}
|
|
|
1374 |
$run = $p;
|
|
|
1375 |
if (!$this->isalnumat($this->dataStr, $p)) {
|
|
|
1376 |
$dif = $this->estimateBitsModeAn($run) + 4 + $la
|
|
|
1377 |
+ $this->estimateBitsMode8(1) // + 4 + l8
|
|
|
1378 |
- $this->estimateBitsMode8($run + 1); // - 4 - l8
|
|
|
1379 |
if ($dif > 0) {
|
|
|
1380 |
return $this->eat8();
|
|
|
1381 |
}
|
|
|
1382 |
}
|
|
|
1383 |
$this->items = $this->appendNewInputItem($this->items, QR_MODE_AN, $run, str_split($this->dataStr));
|
|
|
1384 |
return $run;
|
|
|
1385 |
}
|
|
|
1386 |
|
|
|
1387 |
/**
|
|
|
1388 |
* eatKanji
|
|
|
1389 |
* @return int run
|
|
|
1390 |
*/
|
|
|
1391 |
protected function eatKanji() {
|
|
|
1392 |
$p = 0;
|
|
|
1393 |
while($this->identifyMode($p) == QR_MODE_KJ) {
|
|
|
1394 |
$p += 2;
|
|
|
1395 |
}
|
|
|
1396 |
$this->items = $this->appendNewInputItem($this->items, QR_MODE_KJ, $p, str_split($this->dataStr));
|
|
|
1397 |
return $run;
|
|
|
1398 |
}
|
|
|
1399 |
|
|
|
1400 |
/**
|
|
|
1401 |
* eat8
|
|
|
1402 |
* @return int run
|
|
|
1403 |
*/
|
|
|
1404 |
protected function eat8() {
|
|
|
1405 |
$la = $this->lengthIndicator(QR_MODE_AN, $this->version);
|
|
|
1406 |
$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
|
|
|
1407 |
$p = 1;
|
|
|
1408 |
$dataStrLen = strlen($this->dataStr);
|
|
|
1409 |
while($p < $dataStrLen) {
|
|
|
1410 |
$mode = $this->identifyMode($p);
|
|
|
1411 |
if ($mode == QR_MODE_KJ) {
|
|
|
1412 |
break;
|
|
|
1413 |
}
|
|
|
1414 |
if ($mode == QR_MODE_NM) {
|
|
|
1415 |
$q = $p;
|
|
|
1416 |
while($this->isdigitat($this->dataStr, $q)) {
|
|
|
1417 |
$q++;
|
|
|
1418 |
}
|
|
|
1419 |
$dif = $this->estimateBitsMode8($p) // + 4 + l8
|
|
|
1420 |
+ $this->estimateBitsModeNum($q - $p) + 4 + $ln
|
|
|
1421 |
- $this->estimateBitsMode8($q); // - 4 - l8
|
|
|
1422 |
if ($dif < 0) {
|
|
|
1423 |
break;
|
|
|
1424 |
} else {
|
|
|
1425 |
$p = $q;
|
|
|
1426 |
}
|
|
|
1427 |
} elseif ($mode == QR_MODE_AN) {
|
|
|
1428 |
$q = $p;
|
|
|
1429 |
while($this->isalnumat($this->dataStr, $q)) {
|
|
|
1430 |
$q++;
|
|
|
1431 |
}
|
|
|
1432 |
$dif = $this->estimateBitsMode8($p) // + 4 + l8
|
|
|
1433 |
+ $this->estimateBitsModeAn($q - $p) + 4 + $la
|
|
|
1434 |
- $this->estimateBitsMode8($q); // - 4 - l8
|
|
|
1435 |
if ($dif < 0) {
|
|
|
1436 |
break;
|
|
|
1437 |
} else {
|
|
|
1438 |
$p = $q;
|
|
|
1439 |
}
|
|
|
1440 |
} else {
|
|
|
1441 |
$p++;
|
|
|
1442 |
}
|
|
|
1443 |
}
|
|
|
1444 |
$run = $p;
|
|
|
1445 |
$this->items = $this->appendNewInputItem($this->items, QR_MODE_8B, $run, str_split($this->dataStr));
|
|
|
1446 |
return $run;
|
|
|
1447 |
}
|
|
|
1448 |
|
|
|
1449 |
/**
|
|
|
1450 |
* splitString
|
|
|
1451 |
*/
|
|
|
1452 |
protected function splitString() {
|
|
|
1453 |
while (strlen($this->dataStr) > 0) {
|
|
|
1454 |
if ($this->dataStr == '') {
|
|
|
1455 |
return 0;
|
|
|
1456 |
}
|
|
|
1457 |
$mode = $this->identifyMode(0);
|
|
|
1458 |
switch ($mode) {
|
|
|
1459 |
case QR_MODE_NM: {
|
|
|
1460 |
$length = $this->eatNum();
|
|
|
1461 |
break;
|
|
|
1462 |
}
|
|
|
1463 |
case QR_MODE_AN: {
|
|
|
1464 |
$length = $this->eatAn();
|
|
|
1465 |
break;
|
|
|
1466 |
}
|
|
|
1467 |
case QR_MODE_KJ: {
|
|
|
1468 |
if ($hint == QR_MODE_KJ) {
|
|
|
1469 |
$length = $this->eatKanji();
|
|
|
1470 |
} else {
|
|
|
1471 |
$length = $this->eat8();
|
|
|
1472 |
}
|
|
|
1473 |
break;
|
|
|
1474 |
}
|
|
|
1475 |
default: {
|
|
|
1476 |
$length = $this->eat8();
|
|
|
1477 |
break;
|
|
|
1478 |
}
|
|
|
1479 |
}
|
|
|
1480 |
if ($length == 0) {
|
|
|
1481 |
return 0;
|
|
|
1482 |
}
|
|
|
1483 |
if ($length < 0) {
|
|
|
1484 |
return -1;
|
|
|
1485 |
}
|
|
|
1486 |
$this->dataStr = substr($this->dataStr, $length);
|
|
|
1487 |
}
|
|
|
1488 |
}
|
|
|
1489 |
|
|
|
1490 |
/**
|
|
|
1491 |
* toUpper
|
|
|
1492 |
*/
|
|
|
1493 |
protected function toUpper() {
|
|
|
1494 |
$stringLen = strlen($this->dataStr);
|
|
|
1495 |
$p = 0;
|
|
|
1496 |
while ($p < $stringLen) {
|
|
|
1497 |
$mode = $this->identifyMode(substr($this->dataStr, $p), $this->hint);
|
|
|
1498 |
if ($mode == QR_MODE_KJ) {
|
|
|
1499 |
$p += 2;
|
|
|
1500 |
} else {
|
|
|
1501 |
if ((ord($this->dataStr[$p]) >= ord('a')) AND (ord($this->dataStr[$p]) <= ord('z'))) {
|
|
|
1502 |
$this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
|
|
|
1503 |
}
|
|
|
1504 |
$p++;
|
|
|
1505 |
}
|
|
|
1506 |
}
|
|
|
1507 |
return $this->dataStr;
|
|
|
1508 |
}
|
|
|
1509 |
|
|
|
1510 |
// - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
1511 |
|
|
|
1512 |
// QRinputItem
|
|
|
1513 |
|
|
|
1514 |
/**
|
|
|
1515 |
* newInputItem
|
|
|
1516 |
* @param int $mode
|
|
|
1517 |
* @param int $size
|
|
|
1518 |
* @param array $data
|
|
|
1519 |
* @param array $bstream
|
|
|
1520 |
* @return array input item
|
|
|
1521 |
*/
|
|
|
1522 |
protected function newInputItem($mode, $size, $data, $bstream=null) {
|
|
|
1523 |
$setData = array_slice($data, 0, $size);
|
|
|
1524 |
if (count($setData) < $size) {
|
|
|
1525 |
$setData = array_merge($setData, array_fill(0, ($size - count($setData)), 0));
|
|
|
1526 |
}
|
|
|
1527 |
if (!$this->check($mode, $size, $setData)) {
|
|
|
1528 |
return NULL;
|
|
|
1529 |
}
|
|
|
1530 |
$inputitem = array();
|
|
|
1531 |
$inputitem['mode'] = $mode;
|
|
|
1532 |
$inputitem['size'] = $size;
|
|
|
1533 |
$inputitem['data'] = $setData;
|
|
|
1534 |
$inputitem['bstream'] = $bstream;
|
|
|
1535 |
return $inputitem;
|
|
|
1536 |
}
|
|
|
1537 |
|
|
|
1538 |
/**
|
|
|
1539 |
* encodeModeNum
|
|
|
1540 |
* @param array $inputitem
|
|
|
1541 |
* @param int $version
|
|
|
1542 |
* @return array input item
|
|
|
1543 |
*/
|
|
|
1544 |
protected function encodeModeNum($inputitem, $version) {
|
|
|
1545 |
$words = (int)($inputitem['size'] / 3);
|
|
|
1546 |
$inputitem['bstream'] = array();
|
|
|
1547 |
$val = 0x1;
|
|
|
1548 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
|
|
|
1549 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_NM, $version), $inputitem['size']);
|
|
|
1550 |
for ($i=0; $i < $words; ++$i) {
|
|
|
1551 |
$val = (ord($inputitem['data'][$i*3 ]) - ord('0')) * 100;
|
|
|
1552 |
$val += (ord($inputitem['data'][$i*3+1]) - ord('0')) * 10;
|
|
|
1553 |
$val += (ord($inputitem['data'][$i*3+2]) - ord('0'));
|
|
|
1554 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 10, $val);
|
|
|
1555 |
}
|
|
|
1556 |
if ($inputitem['size'] - $words * 3 == 1) {
|
|
|
1557 |
$val = ord($inputitem['data'][$words*3]) - ord('0');
|
|
|
1558 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
|
|
|
1559 |
} elseif (($inputitem['size'] - ($words * 3)) == 2) {
|
|
|
1560 |
$val = (ord($inputitem['data'][$words*3 ]) - ord('0')) * 10;
|
|
|
1561 |
$val += (ord($inputitem['data'][$words*3+1]) - ord('0'));
|
|
|
1562 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 7, $val);
|
|
|
1563 |
}
|
|
|
1564 |
return $inputitem;
|
|
|
1565 |
}
|
|
|
1566 |
|
|
|
1567 |
/**
|
|
|
1568 |
* encodeModeAn
|
|
|
1569 |
* @param array $inputitem
|
|
|
1570 |
* @param int $version
|
|
|
1571 |
* @return array input item
|
|
|
1572 |
*/
|
|
|
1573 |
protected function encodeModeAn($inputitem, $version) {
|
|
|
1574 |
$words = (int)($inputitem['size'] / 2);
|
|
|
1575 |
$inputitem['bstream'] = array();
|
|
|
1576 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x02);
|
|
|
1577 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_AN, $version), $inputitem['size']);
|
|
|
1578 |
for ($i=0; $i < $words; ++$i) {
|
|
|
1579 |
$val = (int)($this->lookAnTable(ord($inputitem['data'][$i*2])) * 45);
|
|
|
1580 |
$val += (int)($this->lookAnTable(ord($inputitem['data'][($i*2)+1])));
|
|
|
1581 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 11, $val);
|
|
|
1582 |
}
|
|
|
1583 |
if ($inputitem['size'] & 1) {
|
|
|
1584 |
$val = $this->lookAnTable(ord($inputitem['data'][($words * 2)]));
|
|
|
1585 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 6, $val);
|
|
|
1586 |
}
|
|
|
1587 |
return $inputitem;
|
|
|
1588 |
}
|
|
|
1589 |
|
|
|
1590 |
/**
|
|
|
1591 |
* encodeMode8
|
|
|
1592 |
* @param array $inputitem
|
|
|
1593 |
* @param int $version
|
|
|
1594 |
* @return array input item
|
|
|
1595 |
*/
|
|
|
1596 |
protected function encodeMode8($inputitem, $version) {
|
|
|
1597 |
$inputitem['bstream'] = array();
|
|
|
1598 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x4);
|
|
|
1599 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_8B, $version), $inputitem['size']);
|
|
|
1600 |
for ($i=0; $i < $inputitem['size']; ++$i) {
|
|
|
1601 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][$i]));
|
|
|
1602 |
}
|
|
|
1603 |
return $inputitem;
|
|
|
1604 |
}
|
|
|
1605 |
|
|
|
1606 |
/**
|
|
|
1607 |
* encodeModeKanji
|
|
|
1608 |
* @param array $inputitem
|
|
|
1609 |
* @param int $version
|
|
|
1610 |
* @return array input item
|
|
|
1611 |
*/
|
|
|
1612 |
protected function encodeModeKanji($inputitem, $version) {
|
|
|
1613 |
$inputitem['bstream'] = array();
|
|
|
1614 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x8);
|
|
|
1615 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_KJ, $version), (int)($inputitem['size'] / 2));
|
|
|
1616 |
for ($i=0; $i<$inputitem['size']; $i+=2) {
|
|
|
1617 |
$val = (ord($inputitem['data'][$i]) << 8) | ord($inputitem['data'][$i+1]);
|
|
|
1618 |
if ($val <= 0x9ffc) {
|
|
|
1619 |
$val -= 0x8140;
|
|
|
1620 |
} else {
|
|
|
1621 |
$val -= 0xc140;
|
|
|
1622 |
}
|
|
|
1623 |
$h = ($val >> 8) * 0xc0;
|
|
|
1624 |
$val = ($val & 0xff) + $h;
|
|
|
1625 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 13, $val);
|
|
|
1626 |
}
|
|
|
1627 |
return $inputitem;
|
|
|
1628 |
}
|
|
|
1629 |
|
|
|
1630 |
/**
|
|
|
1631 |
* encodeModeStructure
|
|
|
1632 |
* @param array $inputitem
|
|
|
1633 |
* @return array input item
|
|
|
1634 |
*/
|
|
|
1635 |
protected function encodeModeStructure($inputitem) {
|
|
|
1636 |
$inputitem['bstream'] = array();
|
|
|
1637 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x03);
|
|
|
1638 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][1]) - 1);
|
|
|
1639 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][0]) - 1);
|
|
|
1640 |
$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][2]));
|
|
|
1641 |
return $inputitem;
|
|
|
1642 |
}
|
|
|
1643 |
|
|
|
1644 |
/**
|
|
|
1645 |
* encodeBitStream
|
|
|
1646 |
* @param array $inputitem
|
|
|
1647 |
* @param int $version
|
|
|
1648 |
* @return array input item
|
|
|
1649 |
*/
|
|
|
1650 |
protected function encodeBitStream($inputitem, $version) {
|
|
|
1651 |
$inputitem['bstream'] = array();
|
|
|
1652 |
$words = $this->maximumWords($inputitem['mode'], $version);
|
|
|
1653 |
if ($inputitem['size'] > $words) {
|
|
|
1654 |
$st1 = $this->newInputItem($inputitem['mode'], $words, $inputitem['data']);
|
|
|
1655 |
$st2 = $this->newInputItem($inputitem['mode'], $inputitem['size'] - $words, array_slice($inputitem['data'], $words));
|
|
|
1656 |
$st1 = $this->encodeBitStream($st1, $version);
|
|
|
1657 |
$st2 = $this->encodeBitStream($st2, $version);
|
|
|
1658 |
$inputitem['bstream'] = array();
|
|
|
1659 |
$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st1['bstream']);
|
|
|
1660 |
$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st2['bstream']);
|
|
|
1661 |
} else {
|
|
|
1662 |
switch($inputitem['mode']) {
|
|
|
1663 |
case QR_MODE_NM: {
|
|
|
1664 |
$inputitem = $this->encodeModeNum($inputitem, $version);
|
|
|
1665 |
break;
|
|
|
1666 |
}
|
|
|
1667 |
case QR_MODE_AN: {
|
|
|
1668 |
$inputitem = $this->encodeModeAn($inputitem, $version);
|
|
|
1669 |
break;
|
|
|
1670 |
}
|
|
|
1671 |
case QR_MODE_8B: {
|
|
|
1672 |
$inputitem = $this->encodeMode8($inputitem, $version);
|
|
|
1673 |
break;
|
|
|
1674 |
}
|
|
|
1675 |
case QR_MODE_KJ: {
|
|
|
1676 |
$inputitem = $this->encodeModeKanji($inputitem, $version);
|
|
|
1677 |
break;
|
|
|
1678 |
}
|
|
|
1679 |
case QR_MODE_ST: {
|
|
|
1680 |
$inputitem = $this->encodeModeStructure($inputitem);
|
|
|
1681 |
break;
|
|
|
1682 |
}
|
|
|
1683 |
default: {
|
|
|
1684 |
break;
|
|
|
1685 |
}
|
|
|
1686 |
}
|
|
|
1687 |
}
|
|
|
1688 |
return $inputitem;
|
|
|
1689 |
}
|
|
|
1690 |
|
|
|
1691 |
// - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
1692 |
|
|
|
1693 |
// QRinput
|
|
|
1694 |
|
|
|
1695 |
/**
|
|
|
1696 |
* Append data to an input object.
|
|
|
1697 |
* The data is copied and appended to the input object.
|
|
|
1698 |
* @param array items input items
|
|
|
1699 |
* @param int $mode encoding mode.
|
|
|
1700 |
* @param int $size size of data (byte).
|
|
|
1701 |
* @param array $data array of input data.
|
|
|
1702 |
* @return items
|
|
|
1703 |
*
|
|
|
1704 |
*/
|
|
|
1705 |
protected function appendNewInputItem($items, $mode, $size, $data) {
|
|
|
1706 |
$newitem = $this->newInputItem($mode, $size, $data);
|
|
|
1707 |
if (!empty($newitem)) {
|
|
|
1708 |
$items[] = $newitem;
|
|
|
1709 |
}
|
|
|
1710 |
return $items;
|
|
|
1711 |
}
|
|
|
1712 |
|
|
|
1713 |
/**
|
|
|
1714 |
* insertStructuredAppendHeader
|
|
|
1715 |
* @param array $items
|
|
|
1716 |
* @param int $size
|
|
|
1717 |
* @param int $index
|
|
|
1718 |
* @param int $parity
|
|
|
1719 |
* @return array items
|
|
|
1720 |
*/
|
|
|
1721 |
protected function insertStructuredAppendHeader($items, $size, $index, $parity) {
|
|
|
1722 |
if ($size > MAX_STRUCTURED_SYMBOLS) {
|
|
|
1723 |
return -1;
|
|
|
1724 |
}
|
|
|
1725 |
if (($index <= 0) OR ($index > MAX_STRUCTURED_SYMBOLS)) {
|
|
|
1726 |
return -1;
|
|
|
1727 |
}
|
|
|
1728 |
$buf = array($size, $index, $parity);
|
|
|
1729 |
$entry = $this->newInputItem(QR_MODE_ST, 3, buf);
|
|
|
1730 |
array_unshift($items, $entry);
|
|
|
1731 |
return $items;
|
|
|
1732 |
}
|
|
|
1733 |
|
|
|
1734 |
/**
|
|
|
1735 |
* calcParity
|
|
|
1736 |
* @param array $items
|
|
|
1737 |
* @return int parity
|
|
|
1738 |
*/
|
|
|
1739 |
protected function calcParity($items) {
|
|
|
1740 |
$parity = 0;
|
|
|
1741 |
foreach ($items as $item) {
|
|
|
1742 |
if ($item['mode'] != QR_MODE_ST) {
|
|
|
1743 |
for ($i=$item['size']-1; $i>=0; --$i) {
|
|
|
1744 |
$parity ^= $item['data'][$i];
|
|
|
1745 |
}
|
|
|
1746 |
}
|
|
|
1747 |
}
|
|
|
1748 |
return $parity;
|
|
|
1749 |
}
|
|
|
1750 |
|
|
|
1751 |
/**
|
|
|
1752 |
* checkModeNum
|
|
|
1753 |
* @param int $size
|
|
|
1754 |
* @param array $data
|
|
|
1755 |
* @return boolean true or false
|
|
|
1756 |
*/
|
|
|
1757 |
protected function checkModeNum($size, $data) {
|
|
|
1758 |
for ($i=0; $i<$size; ++$i) {
|
|
|
1759 |
if ((ord($data[$i]) < ord('0')) OR (ord($data[$i]) > ord('9'))){
|
|
|
1760 |
return false;
|
|
|
1761 |
}
|
|
|
1762 |
}
|
|
|
1763 |
return true;
|
|
|
1764 |
}
|
|
|
1765 |
|
|
|
1766 |
/**
|
|
|
1767 |
* Look up the alphabet-numeric convesion table (see JIS X0510:2004, pp.19).
|
|
|
1768 |
* @param int $c character value
|
|
|
1769 |
* @return value
|
|
|
1770 |
*/
|
|
|
1771 |
protected function lookAnTable($c) {
|
|
|
1772 |
return (($c > 127)?-1:$this->anTable[$c]);
|
|
|
1773 |
}
|
|
|
1774 |
|
|
|
1775 |
/**
|
|
|
1776 |
* checkModeAn
|
|
|
1777 |
* @param int $size
|
|
|
1778 |
* @param array $data
|
|
|
1779 |
* @return boolean true or false
|
|
|
1780 |
*/
|
|
|
1781 |
protected function checkModeAn($size, $data) {
|
|
|
1782 |
for ($i=0; $i<$size; ++$i) {
|
|
|
1783 |
if ($this->lookAnTable(ord($data[$i])) == -1) {
|
|
|
1784 |
return false;
|
|
|
1785 |
}
|
|
|
1786 |
}
|
|
|
1787 |
return true;
|
|
|
1788 |
}
|
|
|
1789 |
|
|
|
1790 |
/**
|
|
|
1791 |
* estimateBitsModeNum
|
|
|
1792 |
* @param int $size
|
|
|
1793 |
* @return int number of bits
|
|
|
1794 |
*/
|
|
|
1795 |
protected function estimateBitsModeNum($size) {
|
|
|
1796 |
$w = (int)($size / 3);
|
|
|
1797 |
$bits = ($w * 10);
|
|
|
1798 |
switch($size - ($w * 3)) {
|
|
|
1799 |
case 1: {
|
|
|
1800 |
$bits += 4;
|
|
|
1801 |
break;
|
|
|
1802 |
}
|
|
|
1803 |
case 2: {
|
|
|
1804 |
$bits += 7;
|
|
|
1805 |
break;
|
|
|
1806 |
}
|
|
|
1807 |
}
|
|
|
1808 |
return $bits;
|
|
|
1809 |
}
|
|
|
1810 |
|
|
|
1811 |
/**
|
|
|
1812 |
* estimateBitsModeAn
|
|
|
1813 |
* @param int $size
|
|
|
1814 |
* @return int number of bits
|
|
|
1815 |
*/
|
|
|
1816 |
protected function estimateBitsModeAn($size) {
|
|
|
1817 |
$bits = (int)($size * 5.5); // (size / 2 ) * 11
|
|
|
1818 |
if ($size & 1) {
|
|
|
1819 |
$bits += 6;
|
|
|
1820 |
}
|
|
|
1821 |
return $bits;
|
|
|
1822 |
}
|
|
|
1823 |
|
|
|
1824 |
/**
|
|
|
1825 |
* estimateBitsMode8
|
|
|
1826 |
* @param int $size
|
|
|
1827 |
* @return int number of bits
|
|
|
1828 |
*/
|
|
|
1829 |
protected function estimateBitsMode8($size) {
|
|
|
1830 |
return (int)($size * 8);
|
|
|
1831 |
}
|
|
|
1832 |
|
|
|
1833 |
/**
|
|
|
1834 |
* estimateBitsModeKanji
|
|
|
1835 |
* @param int $size
|
|
|
1836 |
* @return int number of bits
|
|
|
1837 |
*/
|
|
|
1838 |
protected function estimateBitsModeKanji($size) {
|
|
|
1839 |
return (int)($size * 6.5); // (size / 2 ) * 13
|
|
|
1840 |
}
|
|
|
1841 |
|
|
|
1842 |
/**
|
|
|
1843 |
* checkModeKanji
|
|
|
1844 |
* @param int $size
|
|
|
1845 |
* @param array $data
|
|
|
1846 |
* @return boolean true or false
|
|
|
1847 |
*/
|
|
|
1848 |
protected function checkModeKanji($size, $data) {
|
|
|
1849 |
if ($size & 1) {
|
|
|
1850 |
return false;
|
|
|
1851 |
}
|
|
|
1852 |
for ($i=0; $i<$size; $i+=2) {
|
|
|
1853 |
$val = (ord($data[$i]) << 8) | ord($data[$i+1]);
|
|
|
1854 |
if (($val < 0x8140) OR (($val > 0x9ffc) AND ($val < 0xe040)) OR ($val > 0xebbf)) {
|
|
|
1855 |
return false;
|
|
|
1856 |
}
|
|
|
1857 |
}
|
|
|
1858 |
return true;
|
|
|
1859 |
}
|
|
|
1860 |
|
|
|
1861 |
/**
|
|
|
1862 |
* Validate the input data.
|
|
|
1863 |
* @param int $mode encoding mode.
|
|
|
1864 |
* @param int $size size of data (byte).
|
|
|
1865 |
* @param array data data to validate
|
|
|
1866 |
* @return boolean true in case of valid data, false otherwise
|
|
|
1867 |
*/
|
|
|
1868 |
protected function check($mode, $size, $data) {
|
|
|
1869 |
if ($size <= 0) {
|
|
|
1870 |
return false;
|
|
|
1871 |
}
|
|
|
1872 |
switch($mode) {
|
|
|
1873 |
case QR_MODE_NM: {
|
|
|
1874 |
return $this->checkModeNum($size, $data);
|
|
|
1875 |
}
|
|
|
1876 |
case QR_MODE_AN: {
|
|
|
1877 |
return $this->checkModeAn($size, $data);
|
|
|
1878 |
}
|
|
|
1879 |
case QR_MODE_KJ: {
|
|
|
1880 |
return $this->checkModeKanji($size, $data);
|
|
|
1881 |
}
|
|
|
1882 |
case QR_MODE_8B: {
|
|
|
1883 |
return true;
|
|
|
1884 |
}
|
|
|
1885 |
case QR_MODE_ST: {
|
|
|
1886 |
return true;
|
|
|
1887 |
}
|
|
|
1888 |
default: {
|
|
|
1889 |
break;
|
|
|
1890 |
}
|
|
|
1891 |
}
|
|
|
1892 |
return false;
|
|
|
1893 |
}
|
|
|
1894 |
|
|
|
1895 |
/**
|
|
|
1896 |
* estimateBitStreamSize
|
|
|
1897 |
* @param array $items
|
|
|
1898 |
* @param int $version
|
|
|
1899 |
* @return int bits
|
|
|
1900 |
*/
|
|
|
1901 |
protected function estimateBitStreamSize($items, $version) {
|
|
|
1902 |
$bits = 0;
|
|
|
1903 |
if ($version == 0) {
|
|
|
1904 |
$version = 1;
|
|
|
1905 |
}
|
|
|
1906 |
foreach ($items as $item) {
|
|
|
1907 |
switch($item['mode']) {
|
|
|
1908 |
case QR_MODE_NM: {
|
|
|
1909 |
$bits = $this->estimateBitsModeNum($item['size']);
|
|
|
1910 |
break;
|
|
|
1911 |
}
|
|
|
1912 |
case QR_MODE_AN: {
|
|
|
1913 |
$bits = $this->estimateBitsModeAn($item['size']);
|
|
|
1914 |
break;
|
|
|
1915 |
}
|
|
|
1916 |
case QR_MODE_8B: {
|
|
|
1917 |
$bits = $this->estimateBitsMode8($item['size']);
|
|
|
1918 |
break;
|
|
|
1919 |
}
|
|
|
1920 |
case QR_MODE_KJ: {
|
|
|
1921 |
$bits = $this->estimateBitsModeKanji($item['size']);
|
|
|
1922 |
break;
|
|
|
1923 |
}
|
|
|
1924 |
case QR_MODE_ST: {
|
|
|
1925 |
return STRUCTURE_HEADER_BITS;
|
|
|
1926 |
}
|
|
|
1927 |
default: {
|
|
|
1928 |
return 0;
|
|
|
1929 |
}
|
|
|
1930 |
}
|
|
|
1931 |
$l = $this->lengthIndicator($item['mode'], $version);
|
|
|
1932 |
$m = 1 << $l;
|
|
|
1933 |
$num = (int)(($item['size'] + $m - 1) / $m);
|
|
|
1934 |
$bits += $num * (4 + $l);
|
|
|
1935 |
}
|
|
|
1936 |
return $bits;
|
|
|
1937 |
}
|
|
|
1938 |
|
|
|
1939 |
/**
|
|
|
1940 |
* estimateVersion
|
|
|
1941 |
* @param array $items
|
|
|
1942 |
* @return int version
|
|
|
1943 |
*/
|
|
|
1944 |
protected function estimateVersion($items) {
|
|
|
1945 |
$version = 0;
|
|
|
1946 |
$prev = 0;
|
|
|
1947 |
do {
|
|
|
1948 |
$prev = $version;
|
|
|
1949 |
$bits = $this->estimateBitStreamSize($items, $prev);
|
|
|
1950 |
$version = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
|
|
|
1951 |
if ($version < 0) {
|
|
|
1952 |
return -1;
|
|
|
1953 |
}
|
|
|
1954 |
} while ($version > $prev);
|
|
|
1955 |
return $version;
|
|
|
1956 |
}
|
|
|
1957 |
|
|
|
1958 |
/**
|
|
|
1959 |
* lengthOfCode
|
|
|
1960 |
* @param int $mode
|
|
|
1961 |
* @param int $version
|
|
|
1962 |
* @param int $bits
|
|
|
1963 |
* @return int size
|
|
|
1964 |
*/
|
|
|
1965 |
protected function lengthOfCode($mode, $version, $bits) {
|
|
|
1966 |
$payload = $bits - 4 - $this->lengthIndicator($mode, $version);
|
|
|
1967 |
switch($mode) {
|
|
|
1968 |
case QR_MODE_NM: {
|
|
|
1969 |
$chunks = (int)($payload / 10);
|
|
|
1970 |
$remain = $payload - $chunks * 10;
|
|
|
1971 |
$size = $chunks * 3;
|
|
|
1972 |
if ($remain >= 7) {
|
|
|
1973 |
$size += 2;
|
|
|
1974 |
} elseif ($remain >= 4) {
|
|
|
1975 |
$size += 1;
|
|
|
1976 |
}
|
|
|
1977 |
break;
|
|
|
1978 |
}
|
|
|
1979 |
case QR_MODE_AN: {
|
|
|
1980 |
$chunks = (int)($payload / 11);
|
|
|
1981 |
$remain = $payload - $chunks * 11;
|
|
|
1982 |
$size = $chunks * 2;
|
|
|
1983 |
if ($remain >= 6) {
|
|
|
1984 |
++$size;
|
|
|
1985 |
}
|
|
|
1986 |
break;
|
|
|
1987 |
}
|
|
|
1988 |
case QR_MODE_8B: {
|
|
|
1989 |
$size = (int)($payload / 8);
|
|
|
1990 |
break;
|
|
|
1991 |
}
|
|
|
1992 |
case QR_MODE_KJ: {
|
|
|
1993 |
$size = (int)(($payload / 13) * 2);
|
|
|
1994 |
break;
|
|
|
1995 |
}
|
|
|
1996 |
case QR_MODE_ST: {
|
|
|
1997 |
$size = (int)($payload / 8);
|
|
|
1998 |
break;
|
|
|
1999 |
}
|
|
|
2000 |
default: {
|
|
|
2001 |
$size = 0;
|
|
|
2002 |
break;
|
|
|
2003 |
}
|
|
|
2004 |
}
|
|
|
2005 |
$maxsize = $this->maximumWords($mode, $version);
|
|
|
2006 |
if ($size < 0) {
|
|
|
2007 |
$size = 0;
|
|
|
2008 |
}
|
|
|
2009 |
if ($size > $maxsize) {
|
|
|
2010 |
$size = $maxsize;
|
|
|
2011 |
}
|
|
|
2012 |
return $size;
|
|
|
2013 |
}
|
|
|
2014 |
|
|
|
2015 |
/**
|
|
|
2016 |
* createBitStream
|
|
|
2017 |
* @param array $items
|
|
|
2018 |
* @return array of items and total bits
|
|
|
2019 |
*/
|
|
|
2020 |
protected function createBitStream($items) {
|
|
|
2021 |
$total = 0;
|
|
|
2022 |
foreach ($items as $key => $item) {
|
|
|
2023 |
$items[$key] = $this->encodeBitStream($item, $this->version);
|
|
|
2024 |
$bits = count($items[$key]['bstream']);
|
|
|
2025 |
$total += $bits;
|
|
|
2026 |
}
|
|
|
2027 |
return array($items, $total);
|
|
|
2028 |
}
|
|
|
2029 |
|
|
|
2030 |
/**
|
|
|
2031 |
* convertData
|
|
|
2032 |
* @param array $items
|
|
|
2033 |
* @return array items
|
|
|
2034 |
*/
|
|
|
2035 |
protected function convertData($items) {
|
|
|
2036 |
$ver = $this->estimateVersion($items);
|
|
|
2037 |
if ($ver > $this->version) {
|
|
|
2038 |
$this->version = $ver;
|
|
|
2039 |
}
|
|
|
2040 |
for (;;) {
|
|
|
2041 |
$cbs = $this->createBitStream($items);
|
|
|
2042 |
$items = $cbs[0];
|
|
|
2043 |
$bits = $cbs[1];
|
|
|
2044 |
if ($bits < 0) {
|
|
|
2045 |
return -1;
|
|
|
2046 |
}
|
|
|
2047 |
$ver = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
|
|
|
2048 |
if ($ver < 0) {
|
|
|
2049 |
return -1;
|
|
|
2050 |
} elseif ($ver > $this->version) {
|
|
|
2051 |
$this->version = $ver;
|
|
|
2052 |
} else {
|
|
|
2053 |
break;
|
|
|
2054 |
}
|
|
|
2055 |
}
|
|
|
2056 |
return $items;
|
|
|
2057 |
}
|
|
|
2058 |
|
|
|
2059 |
/**
|
|
|
2060 |
* Append Padding Bit to bitstream
|
|
|
2061 |
* @param array $bstream
|
|
|
2062 |
* @return array bitstream
|
|
|
2063 |
*/
|
|
|
2064 |
protected function appendPaddingBit($bstream) {
|
|
|
2065 |
if (is_null($bstream)) {
|
|
|
2066 |
return null;
|
|
|
2067 |
}
|
|
|
2068 |
$bits = count($bstream);
|
|
|
2069 |
$maxwords = $this->getDataLength($this->version, $this->level);
|
|
|
2070 |
$maxbits = $maxwords * 8;
|
|
|
2071 |
if ($maxbits == $bits) {
|
|
|
2072 |
return $bstream;
|
|
|
2073 |
}
|
|
|
2074 |
if ($maxbits - $bits < 5) {
|
|
|
2075 |
return $this->appendNum($bstream, $maxbits - $bits, 0);
|
|
|
2076 |
}
|
|
|
2077 |
$bits += 4;
|
|
|
2078 |
$words = (int)(($bits + 7) / 8);
|
|
|
2079 |
$padding = array();
|
|
|
2080 |
$padding = $this->appendNum($padding, $words * 8 - $bits + 4, 0);
|
|
|
2081 |
$padlen = $maxwords - $words;
|
|
|
2082 |
if ($padlen > 0) {
|
|
|
2083 |
$padbuf = array();
|
|
|
2084 |
for ($i=0; $i<$padlen; ++$i) {
|
|
|
2085 |
$padbuf[$i] = ($i&1)?0x11:0xec;
|
|
|
2086 |
}
|
|
|
2087 |
$padding = $this->appendBytes($padding, $padlen, $padbuf);
|
|
|
2088 |
}
|
|
|
2089 |
return $this->appendBitstream($bstream, $padding);
|
|
|
2090 |
}
|
|
|
2091 |
|
|
|
2092 |
/**
|
|
|
2093 |
* mergeBitStream
|
|
|
2094 |
* @param array $bstream
|
|
|
2095 |
* @return array bitstream
|
|
|
2096 |
*/
|
|
|
2097 |
protected function mergeBitStream($items) {
|
|
|
2098 |
$items = $this->convertData($items);
|
|
|
2099 |
if (!is_array($items)) {
|
|
|
2100 |
return null;
|
|
|
2101 |
}
|
|
|
2102 |
$bstream = array();
|
|
|
2103 |
foreach ($items as $item) {
|
|
|
2104 |
$bstream = $this->appendBitstream($bstream, $item['bstream']);
|
|
|
2105 |
}
|
|
|
2106 |
return $bstream;
|
|
|
2107 |
}
|
|
|
2108 |
|
|
|
2109 |
/**
|
|
|
2110 |
* Returns a stream of bits.
|
|
|
2111 |
* @param int $items
|
|
|
2112 |
* @return array padded merged byte stream
|
|
|
2113 |
*/
|
|
|
2114 |
protected function getBitStream($items) {
|
|
|
2115 |
$bstream = $this->mergeBitStream($items);
|
|
|
2116 |
return $this->appendPaddingBit($bstream);
|
|
|
2117 |
}
|
|
|
2118 |
|
|
|
2119 |
/**
|
|
|
2120 |
* Pack all bit streams padding bits into a byte array.
|
|
|
2121 |
* @param int $items
|
|
|
2122 |
* @return array padded merged byte stream
|
|
|
2123 |
*/
|
|
|
2124 |
protected function getByteStream($items) {
|
|
|
2125 |
$bstream = $this->getBitStream($items);
|
|
|
2126 |
return $this->bitstreamToByte($bstream);
|
|
|
2127 |
}
|
|
|
2128 |
|
|
|
2129 |
// - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
2130 |
|
|
|
2131 |
// QRbitstream
|
|
|
2132 |
|
|
|
2133 |
/**
|
|
|
2134 |
* Return an array with zeros
|
|
|
2135 |
* @param int $setLength array size
|
|
|
2136 |
* @return array
|
|
|
2137 |
*/
|
|
|
2138 |
protected function allocate($setLength) {
|
|
|
2139 |
return array_fill(0, $setLength, 0);
|
|
|
2140 |
}
|
|
|
2141 |
|
|
|
2142 |
/**
|
|
|
2143 |
* Return new bitstream from number
|
|
|
2144 |
* @param int $bits number of bits
|
|
|
2145 |
* @param int $num number
|
|
|
2146 |
* @return array bitstream
|
|
|
2147 |
*/
|
|
|
2148 |
protected function newFromNum($bits, $num) {
|
|
|
2149 |
$bstream = $this->allocate($bits);
|
|
|
2150 |
$mask = 1 << ($bits - 1);
|
|
|
2151 |
for ($i=0; $i<$bits; ++$i) {
|
|
|
2152 |
if ($num & $mask) {
|
|
|
2153 |
$bstream[$i] = 1;
|
|
|
2154 |
} else {
|
|
|
2155 |
$bstream[$i] = 0;
|
|
|
2156 |
}
|
|
|
2157 |
$mask = $mask >> 1;
|
|
|
2158 |
}
|
|
|
2159 |
return $bstream;
|
|
|
2160 |
}
|
|
|
2161 |
|
|
|
2162 |
/**
|
|
|
2163 |
* Return new bitstream from bytes
|
|
|
2164 |
* @param int $size size
|
|
|
2165 |
* @param array $data bytes
|
|
|
2166 |
* @return array bitstream
|
|
|
2167 |
*/
|
|
|
2168 |
protected function newFromBytes($size, $data) {
|
|
|
2169 |
$bstream = $this->allocate($size * 8);
|
|
|
2170 |
$p=0;
|
|
|
2171 |
for ($i=0; $i<$size; ++$i) {
|
|
|
2172 |
$mask = 0x80;
|
|
|
2173 |
for ($j=0; $j<8; ++$j) {
|
|
|
2174 |
if ($data[$i] & $mask) {
|
|
|
2175 |
$bstream[$p] = 1;
|
|
|
2176 |
} else {
|
|
|
2177 |
$bstream[$p] = 0;
|
|
|
2178 |
}
|
|
|
2179 |
$p++;
|
|
|
2180 |
$mask = $mask >> 1;
|
|
|
2181 |
}
|
|
|
2182 |
}
|
|
|
2183 |
return $bstream;
|
|
|
2184 |
}
|
|
|
2185 |
|
|
|
2186 |
/**
|
|
|
2187 |
* Append one bitstream to another
|
|
|
2188 |
* @param array $bitstream original bitstream
|
|
|
2189 |
* @param array $append bitstream to append
|
|
|
2190 |
* @return array bitstream
|
|
|
2191 |
*/
|
|
|
2192 |
protected function appendBitstream($bitstream, $append) {
|
|
|
2193 |
if ((!is_array($append)) OR (count($append) == 0)) {
|
|
|
2194 |
return $bitstream;
|
|
|
2195 |
}
|
|
|
2196 |
if (count($bitstream) == 0) {
|
|
|
2197 |
return $append;
|
|
|
2198 |
}
|
|
|
2199 |
return array_values(array_merge($bitstream, $append));
|
|
|
2200 |
}
|
|
|
2201 |
|
|
|
2202 |
/**
|
|
|
2203 |
* Append one bitstream created from number to another
|
|
|
2204 |
* @param array $bitstream original bitstream
|
|
|
2205 |
* @param int $bits number of bits
|
|
|
2206 |
* @param int $num number
|
|
|
2207 |
* @return array bitstream
|
|
|
2208 |
*/
|
|
|
2209 |
protected function appendNum($bitstream, $bits, $num) {
|
|
|
2210 |
if ($bits == 0) {
|
|
|
2211 |
return 0;
|
|
|
2212 |
}
|
|
|
2213 |
$b = $this->newFromNum($bits, $num);
|
|
|
2214 |
return $this->appendBitstream($bitstream, $b);
|
|
|
2215 |
}
|
|
|
2216 |
|
|
|
2217 |
/**
|
|
|
2218 |
* Append one bitstream created from bytes to another
|
|
|
2219 |
* @param array $bitstream original bitstream
|
|
|
2220 |
* @param int $size size
|
|
|
2221 |
* @param array $data bytes
|
|
|
2222 |
* @return array bitstream
|
|
|
2223 |
*/
|
|
|
2224 |
protected function appendBytes($bitstream, $size, $data) {
|
|
|
2225 |
if ($size == 0) {
|
|
|
2226 |
return 0;
|
|
|
2227 |
}
|
|
|
2228 |
$b = $this->newFromBytes($size, $data);
|
|
|
2229 |
return $this->appendBitstream($bitstream, $b);
|
|
|
2230 |
}
|
|
|
2231 |
|
|
|
2232 |
/**
|
|
|
2233 |
* Convert bitstream to bytes
|
|
|
2234 |
* @param array $bitstream original bitstream
|
|
|
2235 |
* @return array of bytes
|
|
|
2236 |
*/
|
|
|
2237 |
protected function bitstreamToByte($bstream) {
|
|
|
2238 |
if (is_null($bstream)) {
|
|
|
2239 |
return null;
|
|
|
2240 |
}
|
|
|
2241 |
$size = count($bstream);
|
|
|
2242 |
if ($size == 0) {
|
|
|
2243 |
return array();
|
|
|
2244 |
}
|
|
|
2245 |
$data = array_fill(0, (int)(($size + 7) / 8), 0);
|
|
|
2246 |
$bytes = (int)($size / 8);
|
|
|
2247 |
$p = 0;
|
|
|
2248 |
for ($i=0; $i<$bytes; $i++) {
|
|
|
2249 |
$v = 0;
|
|
|
2250 |
for ($j=0; $j<8; $j++) {
|
|
|
2251 |
$v = $v << 1;
|
|
|
2252 |
$v |= $bstream[$p];
|
|
|
2253 |
$p++;
|
|
|
2254 |
}
|
|
|
2255 |
$data[$i] = $v;
|
|
|
2256 |
}
|
|
|
2257 |
if ($size & 7) {
|
|
|
2258 |
$v = 0;
|
|
|
2259 |
for ($j=0; $j<($size & 7); $j++) {
|
|
|
2260 |
$v = $v << 1;
|
|
|
2261 |
$v |= $bstream[$p];
|
|
|
2262 |
$p++;
|
|
|
2263 |
}
|
|
|
2264 |
$data[$bytes] = $v;
|
|
|
2265 |
}
|
|
|
2266 |
return $data;
|
|
|
2267 |
}
|
|
|
2268 |
|
|
|
2269 |
// - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
2270 |
|
|
|
2271 |
// QRspec
|
|
|
2272 |
|
|
|
2273 |
/**
|
|
|
2274 |
* Replace a value on the array at the specified position
|
|
|
2275 |
* @param array $srctab
|
|
|
2276 |
* @param int $x X position
|
|
|
2277 |
* @param int $y Y position
|
|
|
2278 |
* @param string $repl value to replace
|
|
|
2279 |
* @param int $replLen length of the repl string
|
|
|
2280 |
* @return array srctab
|
|
|
2281 |
*/
|
|
|
2282 |
protected function qrstrset($srctab, $x, $y, $repl, $replLen=false) {
|
|
|
2283 |
$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
|
|
|
2284 |
return $srctab;
|
|
|
2285 |
}
|
|
|
2286 |
|
|
|
2287 |
/**
|
|
|
2288 |
* Return maximum data code length (bytes) for the version.
|
|
|
2289 |
* @param int $version version
|
|
|
2290 |
* @param int $level error correction level
|
|
|
2291 |
* @return int maximum size (bytes)
|
|
|
2292 |
*/
|
|
|
2293 |
protected function getDataLength($version, $level) {
|
|
|
2294 |
return $this->capacity[$version][QRCAP_WORDS] - $this->capacity[$version][QRCAP_EC][$level];
|
|
|
2295 |
}
|
|
|
2296 |
|
|
|
2297 |
/**
|
|
|
2298 |
* Return maximum error correction code length (bytes) for the version.
|
|
|
2299 |
* @param int $version version
|
|
|
2300 |
* @param int $level error correction level
|
|
|
2301 |
* @return int ECC size (bytes)
|
|
|
2302 |
*/
|
|
|
2303 |
protected function getECCLength($version, $level){
|
|
|
2304 |
return $this->capacity[$version][QRCAP_EC][$level];
|
|
|
2305 |
}
|
|
|
2306 |
|
|
|
2307 |
/**
|
|
|
2308 |
* Return the width of the symbol for the version.
|
|
|
2309 |
* @param int $version version
|
|
|
2310 |
* @return int width
|
|
|
2311 |
*/
|
|
|
2312 |
protected function getWidth($version) {
|
|
|
2313 |
return $this->capacity[$version][QRCAP_WIDTH];
|
|
|
2314 |
}
|
|
|
2315 |
|
|
|
2316 |
/**
|
|
|
2317 |
* Return the numer of remainder bits.
|
|
|
2318 |
* @param int $version version
|
|
|
2319 |
* @return int number of remainder bits
|
|
|
2320 |
*/
|
|
|
2321 |
protected function getRemainder($version) {
|
|
|
2322 |
return $this->capacity[$version][QRCAP_REMINDER];
|
|
|
2323 |
}
|
|
|
2324 |
|
|
|
2325 |
/**
|
|
|
2326 |
* Return a version number that satisfies the input code length.
|
|
|
2327 |
* @param int $size input code length (byte)
|
|
|
2328 |
* @param int $level error correction level
|
|
|
2329 |
* @return int version number
|
|
|
2330 |
*/
|
|
|
2331 |
protected function getMinimumVersion($size, $level) {
|
|
|
2332 |
for ($i=1; $i <= QRSPEC_VERSION_MAX; ++$i) {
|
|
|
2333 |
$words = $this->capacity[$i][QRCAP_WORDS] - $this->capacity[$i][QRCAP_EC][$level];
|
|
|
2334 |
if ($words >= $size) {
|
|
|
2335 |
return $i;
|
|
|
2336 |
}
|
|
|
2337 |
}
|
|
|
2338 |
return -1;
|
|
|
2339 |
}
|
|
|
2340 |
|
|
|
2341 |
/**
|
|
|
2342 |
* Return the size of length indicator for the mode and version.
|
|
|
2343 |
* @param int $mode encoding mode
|
|
|
2344 |
* @param int $version version
|
|
|
2345 |
* @return int the size of the appropriate length indicator (bits).
|
|
|
2346 |
*/
|
|
|
2347 |
protected function lengthIndicator($mode, $version) {
|
|
|
2348 |
if ($mode == QR_MODE_ST) {
|
|
|
2349 |
return 0;
|
|
|
2350 |
}
|
|
|
2351 |
if ($version <= 9) {
|
|
|
2352 |
$l = 0;
|
|
|
2353 |
} elseif ($version <= 26) {
|
|
|
2354 |
$l = 1;
|
|
|
2355 |
} else {
|
|
|
2356 |
$l = 2;
|
|
|
2357 |
}
|
|
|
2358 |
return $this->lengthTableBits[$mode][$l];
|
|
|
2359 |
}
|
|
|
2360 |
|
|
|
2361 |
/**
|
|
|
2362 |
* Return the maximum length for the mode and version.
|
|
|
2363 |
* @param int $mode encoding mode
|
|
|
2364 |
* @param int $version version
|
|
|
2365 |
* @return int the maximum length (bytes)
|
|
|
2366 |
*/
|
|
|
2367 |
protected function maximumWords($mode, $version) {
|
|
|
2368 |
if ($mode == QR_MODE_ST) {
|
|
|
2369 |
return 3;
|
|
|
2370 |
}
|
|
|
2371 |
if ($version <= 9) {
|
|
|
2372 |
$l = 0;
|
|
|
2373 |
} else if ($version <= 26) {
|
|
|
2374 |
$l = 1;
|
|
|
2375 |
} else {
|
|
|
2376 |
$l = 2;
|
|
|
2377 |
}
|
|
|
2378 |
$bits = $this->lengthTableBits[$mode][$l];
|
|
|
2379 |
$words = (1 << $bits) - 1;
|
|
|
2380 |
if ($mode == QR_MODE_KJ) {
|
|
|
2381 |
$words *= 2; // the number of bytes is required
|
|
|
2382 |
}
|
|
|
2383 |
return $words;
|
|
|
2384 |
}
|
|
|
2385 |
|
|
|
2386 |
/**
|
|
|
2387 |
* Return an array of ECC specification.
|
|
|
2388 |
* @param int $version version
|
|
|
2389 |
* @param int $level error correction level
|
|
|
2390 |
* @param array $spec an array of ECC specification contains as following: {# of type1 blocks, # of data code, # of ecc code, # of type2 blocks, # of data code}
|
|
|
2391 |
* @return array spec
|
|
|
2392 |
*/
|
|
|
2393 |
protected function getEccSpec($version, $level, $spec) {
|
|
|
2394 |
if (count($spec) < 5) {
|
|
|
2395 |
$spec = array(0, 0, 0, 0, 0);
|
|
|
2396 |
}
|
|
|
2397 |
$b1 = $this->eccTable[$version][$level][0];
|
|
|
2398 |
$b2 = $this->eccTable[$version][$level][1];
|
|
|
2399 |
$data = $this->getDataLength($version, $level);
|
|
|
2400 |
$ecc = $this->getECCLength($version, $level);
|
|
|
2401 |
if ($b2 == 0) {
|
|
|
2402 |
$spec[0] = $b1;
|
|
|
2403 |
$spec[1] = (int)($data / $b1);
|
|
|
2404 |
$spec[2] = (int)($ecc / $b1);
|
|
|
2405 |
$spec[3] = 0;
|
|
|
2406 |
$spec[4] = 0;
|
|
|
2407 |
} else {
|
|
|
2408 |
$spec[0] = $b1;
|
|
|
2409 |
$spec[1] = (int)($data / ($b1 + $b2));
|
|
|
2410 |
$spec[2] = (int)($ecc / ($b1 + $b2));
|
|
|
2411 |
$spec[3] = $b2;
|
|
|
2412 |
$spec[4] = $spec[1] + 1;
|
|
|
2413 |
}
|
|
|
2414 |
return $spec;
|
|
|
2415 |
}
|
|
|
2416 |
|
|
|
2417 |
/**
|
|
|
2418 |
* Put an alignment marker.
|
|
|
2419 |
* @param array $frame frame
|
|
|
2420 |
* @param int $width width
|
|
|
2421 |
* @param int $ox X center coordinate of the pattern
|
|
|
2422 |
* @param int $oy Y center coordinate of the pattern
|
|
|
2423 |
* @return array frame
|
|
|
2424 |
*/
|
|
|
2425 |
protected function putAlignmentMarker($frame, $ox, $oy) {
|
|
|
2426 |
$finder = array(
|
|
|
2427 |
"\xa1\xa1\xa1\xa1\xa1",
|
|
|
2428 |
"\xa1\xa0\xa0\xa0\xa1",
|
|
|
2429 |
"\xa1\xa0\xa1\xa0\xa1",
|
|
|
2430 |
"\xa1\xa0\xa0\xa0\xa1",
|
|
|
2431 |
"\xa1\xa1\xa1\xa1\xa1"
|
|
|
2432 |
);
|
|
|
2433 |
$yStart = $oy - 2;
|
|
|
2434 |
$xStart = $ox - 2;
|
|
|
2435 |
for ($y=0; $y < 5; $y++) {
|
|
|
2436 |
$frame = $this->qrstrset($frame, $xStart, $yStart+$y, $finder[$y]);
|
|
|
2437 |
}
|
|
|
2438 |
return $frame;
|
|
|
2439 |
}
|
|
|
2440 |
|
|
|
2441 |
/**
|
|
|
2442 |
* Put an alignment pattern.
|
|
|
2443 |
* @param int $version version
|
|
|
2444 |
* @param array $fram frame
|
|
|
2445 |
* @param int $width width
|
|
|
2446 |
* @return array frame
|
|
|
2447 |
*/
|
|
|
2448 |
protected function putAlignmentPattern($version, $frame, $width) {
|
|
|
2449 |
if ($version < 2) {
|
|
|
2450 |
return $frame;
|
|
|
2451 |
}
|
|
|
2452 |
$d = $this->alignmentPattern[$version][1] - $this->alignmentPattern[$version][0];
|
|
|
2453 |
if ($d < 0) {
|
|
|
2454 |
$w = 2;
|
|
|
2455 |
} else {
|
|
|
2456 |
$w = (int)(($width - $this->alignmentPattern[$version][0]) / $d + 2);
|
|
|
2457 |
}
|
|
|
2458 |
if ($w * $w - 3 == 1) {
|
|
|
2459 |
$x = $this->alignmentPattern[$version][0];
|
|
|
2460 |
$y = $this->alignmentPattern[$version][0];
|
|
|
2461 |
$frame = $this->putAlignmentMarker($frame, $x, $y);
|
|
|
2462 |
return $frame;
|
|
|
2463 |
}
|
|
|
2464 |
$cx = $this->alignmentPattern[$version][0];
|
|
|
2465 |
$wo = $w - 1;
|
|
|
2466 |
for ($x=1; $x < $wo; ++$x) {
|
|
|
2467 |
$frame = $this->putAlignmentMarker($frame, 6, $cx);
|
|
|
2468 |
$frame = $this->putAlignmentMarker($frame, $cx, 6);
|
|
|
2469 |
$cx += $d;
|
|
|
2470 |
}
|
|
|
2471 |
$cy = $this->alignmentPattern[$version][0];
|
|
|
2472 |
for ($y=0; $y < $wo; ++$y) {
|
|
|
2473 |
$cx = $this->alignmentPattern[$version][0];
|
|
|
2474 |
for ($x=0; $x < $wo; ++$x) {
|
|
|
2475 |
$frame = $this->putAlignmentMarker($frame, $cx, $cy);
|
|
|
2476 |
$cx += $d;
|
|
|
2477 |
}
|
|
|
2478 |
$cy += $d;
|
|
|
2479 |
}
|
|
|
2480 |
return $frame;
|
|
|
2481 |
}
|
|
|
2482 |
|
|
|
2483 |
/**
|
|
|
2484 |
* Return BCH encoded version information pattern that is used for the symbol of version 7 or greater. Use lower 18 bits.
|
|
|
2485 |
* @param int $version version
|
|
|
2486 |
* @return BCH encoded version information pattern
|
|
|
2487 |
*/
|
|
|
2488 |
protected function getVersionPattern($version) {
|
|
|
2489 |
if (($version < 7) OR ($version > QRSPEC_VERSION_MAX)) {
|
|
|
2490 |
return 0;
|
|
|
2491 |
}
|
|
|
2492 |
return $this->versionPattern[($version - 7)];
|
|
|
2493 |
}
|
|
|
2494 |
|
|
|
2495 |
/**
|
|
|
2496 |
* Return BCH encoded format information pattern.
|
|
|
2497 |
* @param array $mask
|
|
|
2498 |
* @param int $level error correction level
|
|
|
2499 |
* @return BCH encoded format information pattern
|
|
|
2500 |
*/
|
|
|
2501 |
protected function getFormatInfo($mask, $level) {
|
|
|
2502 |
if (($mask < 0) OR ($mask > 7)) {
|
|
|
2503 |
return 0;
|
|
|
2504 |
}
|
|
|
2505 |
if (($level < 0) OR ($level > 3)) {
|
|
|
2506 |
return 0;
|
|
|
2507 |
}
|
|
|
2508 |
return $this->formatInfo[$level][$mask];
|
|
|
2509 |
}
|
|
|
2510 |
|
|
|
2511 |
/**
|
|
|
2512 |
* Put a finder pattern.
|
|
|
2513 |
* @param array $frame frame
|
|
|
2514 |
* @param int $width width
|
|
|
2515 |
* @param int $ox X center coordinate of the pattern
|
|
|
2516 |
* @param int $oy Y center coordinate of the pattern
|
|
|
2517 |
* @return array frame
|
|
|
2518 |
*/
|
|
|
2519 |
protected function putFinderPattern($frame, $ox, $oy) {
|
|
|
2520 |
$finder = array(
|
|
|
2521 |
"\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
|
|
|
2522 |
"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
|
|
|
2523 |
"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
|
|
|
2524 |
"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
|
|
|
2525 |
"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
|
|
|
2526 |
"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
|
|
|
2527 |
"\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
|
|
|
2528 |
);
|
|
|
2529 |
for ($y=0; $y < 7; $y++) {
|
|
|
2530 |
$frame = $this->qrstrset($frame, $ox, ($oy + $y), $finder[$y]);
|
|
|
2531 |
}
|
|
|
2532 |
return $frame;
|
|
|
2533 |
}
|
|
|
2534 |
|
|
|
2535 |
/**
|
|
|
2536 |
* Return a copy of initialized frame.
|
|
|
2537 |
* @param int $version version
|
|
|
2538 |
* @return Array of unsigned char.
|
|
|
2539 |
*/
|
|
|
2540 |
protected function createFrame($version) {
|
|
|
2541 |
$width = $this->capacity[$version][QRCAP_WIDTH];
|
|
|
2542 |
$frameLine = str_repeat ("\0", $width);
|
|
|
2543 |
$frame = array_fill(0, $width, $frameLine);
|
|
|
2544 |
// Finder pattern
|
|
|
2545 |
$frame = $this->putFinderPattern($frame, 0, 0);
|
|
|
2546 |
$frame = $this->putFinderPattern($frame, $width - 7, 0);
|
|
|
2547 |
$frame = $this->putFinderPattern($frame, 0, $width - 7);
|
|
|
2548 |
// Separator
|
|
|
2549 |
$yOffset = $width - 7;
|
|
|
2550 |
for ($y=0; $y < 7; ++$y) {
|
|
|
2551 |
$frame[$y][7] = "\xc0";
|
|
|
2552 |
$frame[$y][$width - 8] = "\xc0";
|
|
|
2553 |
$frame[$yOffset][7] = "\xc0";
|
|
|
2554 |
++$yOffset;
|
|
|
2555 |
}
|
|
|
2556 |
$setPattern = str_repeat("\xc0", 8);
|
|
|
2557 |
$frame = $this->qrstrset($frame, 0, 7, $setPattern);
|
|
|
2558 |
$frame = $this->qrstrset($frame, $width-8, 7, $setPattern);
|
|
|
2559 |
$frame = $this->qrstrset($frame, 0, $width - 8, $setPattern);
|
|
|
2560 |
// Format info
|
|
|
2561 |
$setPattern = str_repeat("\x84", 9);
|
|
|
2562 |
$frame = $this->qrstrset($frame, 0, 8, $setPattern);
|
|
|
2563 |
$frame = $this->qrstrset($frame, $width - 8, 8, $setPattern, 8);
|
|
|
2564 |
$yOffset = $width - 8;
|
|
|
2565 |
for ($y=0; $y < 8; ++$y,++$yOffset) {
|
|
|
2566 |
$frame[$y][8] = "\x84";
|
|
|
2567 |
$frame[$yOffset][8] = "\x84";
|
|
|
2568 |
}
|
|
|
2569 |
// Timing pattern
|
|
|
2570 |
$wo = $width - 15;
|
|
|
2571 |
for ($i=1; $i < $wo; ++$i) {
|
|
|
2572 |
$frame[6][7+$i] = chr(0x90 | ($i & 1));
|
|
|
2573 |
$frame[7+$i][6] = chr(0x90 | ($i & 1));
|
|
|
2574 |
}
|
|
|
2575 |
// Alignment pattern
|
|
|
2576 |
$frame = $this->putAlignmentPattern($version, $frame, $width);
|
|
|
2577 |
// Version information
|
|
|
2578 |
if ($version >= 7) {
|
|
|
2579 |
$vinf = $this->getVersionPattern($version);
|
|
|
2580 |
$v = $vinf;
|
|
|
2581 |
for ($x=0; $x<6; ++$x) {
|
|
|
2582 |
for ($y=0; $y<3; ++$y) {
|
|
|
2583 |
$frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
|
|
|
2584 |
$v = $v >> 1;
|
|
|
2585 |
}
|
|
|
2586 |
}
|
|
|
2587 |
$v = $vinf;
|
|
|
2588 |
for ($y=0; $y<6; ++$y) {
|
|
|
2589 |
for ($x=0; $x<3; ++$x) {
|
|
|
2590 |
$frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
|
|
|
2591 |
$v = $v >> 1;
|
|
|
2592 |
}
|
|
|
2593 |
}
|
|
|
2594 |
}
|
|
|
2595 |
// and a little bit...
|
|
|
2596 |
$frame[$width - 8][8] = "\x81";
|
|
|
2597 |
return $frame;
|
|
|
2598 |
}
|
|
|
2599 |
|
|
|
2600 |
/**
|
|
|
2601 |
* Set new frame for the specified version.
|
|
|
2602 |
* @param int $version version
|
|
|
2603 |
* @return Array of unsigned char.
|
|
|
2604 |
*/
|
|
|
2605 |
protected function newFrame($version) {
|
|
|
2606 |
if (($version < 1) OR ($version > QRSPEC_VERSION_MAX)) {
|
|
|
2607 |
return NULL;
|
|
|
2608 |
}
|
|
|
2609 |
if (!isset($this->frames[$version])) {
|
|
|
2610 |
$this->frames[$version] = $this->createFrame($version);
|
|
|
2611 |
}
|
|
|
2612 |
if (is_null($this->frames[$version])) {
|
|
|
2613 |
return NULL;
|
|
|
2614 |
}
|
|
|
2615 |
return $this->frames[$version];
|
|
|
2616 |
}
|
|
|
2617 |
|
|
|
2618 |
/**
|
|
|
2619 |
* Return block number 0
|
|
|
2620 |
* @param array $spec
|
|
|
2621 |
* @return int value
|
|
|
2622 |
*/
|
|
|
2623 |
protected function rsBlockNum($spec) {
|
|
|
2624 |
return ($spec[0] + $spec[3]);
|
|
|
2625 |
}
|
|
|
2626 |
|
|
|
2627 |
/**
|
|
|
2628 |
* Return block number 1
|
|
|
2629 |
* @param array $spec
|
|
|
2630 |
* @return int value
|
|
|
2631 |
*/
|
|
|
2632 |
protected function rsBlockNum1($spec) {
|
|
|
2633 |
return $spec[0];
|
|
|
2634 |
}
|
|
|
2635 |
|
|
|
2636 |
/**
|
|
|
2637 |
* Return data codes 1
|
|
|
2638 |
* @param array $spec
|
|
|
2639 |
* @return int value
|
|
|
2640 |
*/
|
|
|
2641 |
protected function rsDataCodes1($spec) {
|
|
|
2642 |
return $spec[1];
|
|
|
2643 |
}
|
|
|
2644 |
|
|
|
2645 |
/**
|
|
|
2646 |
* Return ecc codes 1
|
|
|
2647 |
* @param array $spec
|
|
|
2648 |
* @return int value
|
|
|
2649 |
*/
|
|
|
2650 |
protected function rsEccCodes1($spec) {
|
|
|
2651 |
return $spec[2];
|
|
|
2652 |
}
|
|
|
2653 |
|
|
|
2654 |
/**
|
|
|
2655 |
* Return block number 2
|
|
|
2656 |
* @param array $spec
|
|
|
2657 |
* @return int value
|
|
|
2658 |
*/
|
|
|
2659 |
protected function rsBlockNum2($spec) {
|
|
|
2660 |
return $spec[3];
|
|
|
2661 |
}
|
|
|
2662 |
|
|
|
2663 |
/**
|
|
|
2664 |
* Return data codes 2
|
|
|
2665 |
* @param array $spec
|
|
|
2666 |
* @return int value
|
|
|
2667 |
*/
|
|
|
2668 |
protected function rsDataCodes2($spec) {
|
|
|
2669 |
return $spec[4];
|
|
|
2670 |
}
|
|
|
2671 |
|
|
|
2672 |
/**
|
|
|
2673 |
* Return ecc codes 2
|
|
|
2674 |
* @param array $spec
|
|
|
2675 |
* @return int value
|
|
|
2676 |
*/
|
|
|
2677 |
protected function rsEccCodes2($spec) {
|
|
|
2678 |
return $spec[2];
|
|
|
2679 |
}
|
|
|
2680 |
|
|
|
2681 |
/**
|
|
|
2682 |
* Return data length
|
|
|
2683 |
* @param array $spec
|
|
|
2684 |
* @return int value
|
|
|
2685 |
*/
|
|
|
2686 |
protected function rsDataLength($spec) {
|
|
|
2687 |
return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);
|
|
|
2688 |
}
|
|
|
2689 |
|
|
|
2690 |
/**
|
|
|
2691 |
* Return ecc length
|
|
|
2692 |
* @param array $spec
|
|
|
2693 |
* @return int value
|
|
|
2694 |
*/
|
|
|
2695 |
protected function rsEccLength($spec) {
|
|
|
2696 |
return ($spec[0] + $spec[3]) * $spec[2];
|
|
|
2697 |
}
|
|
|
2698 |
|
|
|
2699 |
// - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
2700 |
|
|
|
2701 |
// QRrs
|
|
|
2702 |
|
|
|
2703 |
/**
|
|
|
2704 |
* Initialize a Reed-Solomon codec and add it to existing rsitems
|
|
|
2705 |
* @param int $symsize symbol size, bits
|
|
|
2706 |
* @param int $gfpoly Field generator polynomial coefficients
|
|
|
2707 |
* @param int $fcr first root of RS code generator polynomial, index form
|
|
|
2708 |
* @param int $prim primitive element to generate polynomial roots
|
|
|
2709 |
* @param int $nroots RS code generator polynomial degree (number of roots)
|
|
|
2710 |
* @param int $pad padding bytes at front of shortened block
|
|
|
2711 |
* @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
|
|
|
2712 |
*/
|
|
|
2713 |
protected function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
|
|
|
2714 |
foreach ($this->rsitems as $rs) {
|
|
|
2715 |
if (($rs['pad'] != $pad) OR ($rs['nroots'] != $nroots) OR ($rs['mm'] != $symsize)
|
|
|
2716 |
OR ($rs['gfpoly'] != $gfpoly) OR ($rs['fcr'] != $fcr) OR ($rs['prim'] != $prim)) {
|
|
|
2717 |
continue;
|
|
|
2718 |
}
|
|
|
2719 |
return $rs;
|
|
|
2720 |
}
|
|
|
2721 |
$rs = $this->init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
|
|
|
2722 |
array_unshift($this->rsitems, $rs);
|
|
|
2723 |
return $rs;
|
|
|
2724 |
}
|
|
|
2725 |
|
|
|
2726 |
// - - - - - - - - - - - - - - - - - - - - - - - - -
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2727 |
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2728 |
// QRrsItem
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2729 |
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|
2730 |
/**
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|
2731 |
* modnn
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|
2732 |
* @param array RS values
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|
2733 |
* @param int $x X position
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2734 |
* @return int X osition
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|
2735 |
*/
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|
2736 |
protected function modnn($rs, $x) {
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|
2737 |
while ($x >= $rs['nn']) {
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|
2738 |
$x -= $rs['nn'];
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|
2739 |
$x = ($x >> $rs['mm']) + ($x & $rs['nn']);
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|
2740 |
}
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|
2741 |
return $x;
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|
2742 |
}
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2743 |
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|
2744 |
/**
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|
2745 |
* Initialize a Reed-Solomon codec and returns an array of values.
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|
2746 |
* @param int $symsize symbol size, bits
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2747 |
* @param int $gfpoly Field generator polynomial coefficients
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|
2748 |
* @param int $fcr first root of RS code generator polynomial, index form
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|
2749 |
* @param int $prim primitive element to generate polynomial roots
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|
2750 |
* @param int $nroots RS code generator polynomial degree (number of roots)
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|
2751 |
* @param int $pad padding bytes at front of shortened block
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|
2752 |
* @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
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|
2753 |
*/
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|
2754 |
protected function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
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|
2755 |
// Based on Reed solomon encoder by Phil Karn, KA9Q (GNU-LGPLv2)
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|
2756 |
$rs = null;
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|
2757 |
// Check parameter ranges
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|
2758 |
if (($symsize < 0) OR ($symsize > 8)) {
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|
2759 |
return $rs;
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|
2760 |
}
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2761 |
if (($fcr < 0) OR ($fcr >= (1<<$symsize))) {
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|
2762 |
return $rs;
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|
2763 |
}
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|
2764 |
if (($prim <= 0) OR ($prim >= (1<<$symsize))) {
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|
2765 |
return $rs;
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|
2766 |
}
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|
2767 |
if (($nroots < 0) OR ($nroots >= (1<<$symsize))) {
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|
2768 |
return $rs;
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|
2769 |
}
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|
2770 |
if (($pad < 0) OR ($pad >= ((1<<$symsize) -1 - $nroots))) {
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|
2771 |
return $rs;
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|
2772 |
}
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|
2773 |
$rs = array();
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|
2774 |
$rs['mm'] = $symsize;
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|
2775 |
$rs['nn'] = (1 << $symsize) - 1;
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|
2776 |
$rs['pad'] = $pad;
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|
2777 |
$rs['alpha_to'] = array_fill(0, ($rs['nn'] + 1), 0);
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|
2778 |
$rs['index_of'] = array_fill(0, ($rs['nn'] + 1), 0);
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|
2779 |
// PHP style macro replacement ;)
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|
2780 |
$NN =& $rs['nn'];
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|
2781 |
$A0 =& $NN;
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|
2782 |
// Generate Galois field lookup tables
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|
2783 |
$rs['index_of'][0] = $A0; // log(zero) = -inf
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|
2784 |
$rs['alpha_to'][$A0] = 0; // alpha**-inf = 0
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|
2785 |
$sr = 1;
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|
2786 |
for ($i=0; $i<$rs['nn']; ++$i) {
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|
2787 |
$rs['index_of'][$sr] = $i;
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|
2788 |
$rs['alpha_to'][$i] = $sr;
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|
2789 |
$sr <<= 1;
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|
2790 |
if ($sr & (1 << $symsize)) {
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|
2791 |
$sr ^= $gfpoly;
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|
2792 |
}
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|
2793 |
$sr &= $rs['nn'];
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|
2794 |
}
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|
2795 |
if ($sr != 1) {
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|
2796 |
// field generator polynomial is not primitive!
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|
2797 |
return NULL;
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|
2798 |
}
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|
2799 |
// Form RS code generator polynomial from its roots
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|
2800 |
$rs['genpoly'] = array_fill(0, ($nroots + 1), 0);
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|
2801 |
$rs['fcr'] = $fcr;
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|
2802 |
$rs['prim'] = $prim;
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|
2803 |
$rs['nroots'] = $nroots;
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|
2804 |
$rs['gfpoly'] = $gfpoly;
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|
2805 |
// Find prim-th root of 1, used in decoding
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|
2806 |
for ($iprim=1; ($iprim % $prim) != 0; $iprim += $rs['nn']) {
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|
2807 |
; // intentional empty-body loop!
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|
2808 |
}
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|
2809 |
$rs['iprim'] = (int)($iprim / $prim);
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|
2810 |
$rs['genpoly'][0] = 1;
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|
2811 |
for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
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|
2812 |
$rs['genpoly'][$i+1] = 1;
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|
2813 |
// Multiply rs->genpoly[] by @**(root + x)
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|
2814 |
for ($j = $i; $j > 0; --$j) {
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|
2815 |
if ($rs['genpoly'][$j] != 0) {
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|
2816 |
$rs['genpoly'][$j] = $rs['genpoly'][$j-1] ^ $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][$j]] + $root)];
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|
2817 |
} else {
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|
2818 |
$rs['genpoly'][$j] = $rs['genpoly'][$j-1];
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|
2819 |
}
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|
2820 |
}
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|
2821 |
// rs->genpoly[0] can never be zero
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|
2822 |
$rs['genpoly'][0] = $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][0]] + $root)];
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|
|
2823 |
}
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|
|
2824 |
// convert rs->genpoly[] to index form for quicker encoding
|
|
|
2825 |
for ($i = 0; $i <= $nroots; ++$i) {
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|
|
2826 |
$rs['genpoly'][$i] = $rs['index_of'][$rs['genpoly'][$i]];
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|
|
2827 |
}
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|
|
2828 |
return $rs;
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|
|
2829 |
}
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|
|
2830 |
|
|
|
2831 |
/**
|
|
|
2832 |
* Encode a Reed-Solomon codec and returns the parity array
|
|
|
2833 |
* @param array $rs RS values
|
|
|
2834 |
* @param array $data data
|
|
|
2835 |
* @param array $parity parity
|
|
|
2836 |
* @return parity array
|
|
|
2837 |
*/
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|
|
2838 |
protected function encode_rs_char($rs, $data, $parity) {
|
|
|
2839 |
$MM =& $rs['mm']; // bits per symbol
|
|
|
2840 |
$NN =& $rs['nn']; // the total number of symbols in a RS block
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|
2841 |
$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
|
|
|
2842 |
$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
|
|
|
2843 |
$GENPOLY =& $rs['genpoly']; // an array of NROOTS+1 elements containing the generator polynomial in index form
|
|
|
2844 |
$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
|
|
|
2845 |
$FCR =& $rs['fcr']; // first consecutive root, index form
|
|
|
2846 |
$PRIM =& $rs['prim']; // primitive element, index form
|
|
|
2847 |
$IPRIM =& $rs['iprim']; // prim-th root of 1, index form
|
|
|
2848 |
$PAD =& $rs['pad']; // the number of pad symbols in a block
|
|
|
2849 |
$A0 =& $NN;
|
|
|
2850 |
$parity = array_fill(0, $NROOTS, 0);
|
|
|
2851 |
for ($i=0; $i < ($NN - $NROOTS - $PAD); $i++) {
|
|
|
2852 |
$feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
|
|
|
2853 |
if ($feedback != $A0) {
|
|
|
2854 |
// feedback term is non-zero
|
|
|
2855 |
// This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
|
|
|
2856 |
// always be for the polynomials constructed by init_rs()
|
|
|
2857 |
$feedback = $this->modnn($rs, $NN - $GENPOLY[$NROOTS] + $feedback);
|
|
|
2858 |
for ($j=1; $j < $NROOTS; ++$j) {
|
|
|
2859 |
$parity[$j] ^= $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[($NROOTS - $j)])];
|
|
|
2860 |
}
|
|
|
2861 |
}
|
|
|
2862 |
// Shift
|
|
|
2863 |
array_shift($parity);
|
|
|
2864 |
if ($feedback != $A0) {
|
|
|
2865 |
array_push($parity, $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[0])]);
|
|
|
2866 |
} else {
|
|
|
2867 |
array_push($parity, 0);
|
|
|
2868 |
}
|
|
|
2869 |
}
|
|
|
2870 |
return $parity;
|
|
|
2871 |
}
|
|
|
2872 |
|
|
|
2873 |
} // end QRcode class
|
|
|
2874 |
|
|
|
2875 |
} // END OF "class_exists QRcode"
|
|
|
2876 |
//============================================================+
|
|
|
2877 |
// END OF FILE
|
|
|
2878 |
//============================================================+
|
|
|
2879 |
?>
|