329 lines
12 KiB
PHP
329 lines
12 KiB
PHP
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<?php
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/*
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* PHP QR Code encoder
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*
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* Masking
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*
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* Based on libqrencode C library distributed under LGPL 2.1
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* Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
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*
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* PHP QR Code is distributed under LGPL 3
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* Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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define('N1', 3);
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define('N2', 3);
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define('N3', 40);
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define('N4', 10);
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class QRmask {
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public $runLength = array();
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//----------------------------------------------------------------------
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public function __construct()
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{
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$this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
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}
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//----------------------------------------------------------------------
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public function writeFormatInformation($width, &$frame, $mask, $level)
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{
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$blacks = 0;
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$format = QRspec::getFormatInfo($mask, $level);
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for($i=0; $i<8; $i++) {
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if($format & 1) {
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$blacks += 2;
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$v = 0x85;
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} else {
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$v = 0x84;
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}
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$frame[8][$width - 1 - $i] = chr($v);
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if($i < 6) {
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$frame[$i][8] = chr($v);
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} else {
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$frame[$i + 1][8] = chr($v);
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}
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$format = $format >> 1;
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}
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for($i=0; $i<7; $i++) {
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if($format & 1) {
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$blacks += 2;
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$v = 0x85;
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} else {
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$v = 0x84;
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}
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$frame[$width - 7 + $i][8] = chr($v);
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if($i == 0) {
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$frame[8][7] = chr($v);
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} else {
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$frame[8][6 - $i] = chr($v);
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}
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$format = $format >> 1;
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}
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return $blacks;
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}
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//----------------------------------------------------------------------
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public function mask0($x, $y) { return ($x+$y)&1; }
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public function mask1($x, $y) { return ($y&1); }
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public function mask2($x, $y) { return ($x%3); }
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public function mask3($ |