<?php
/** no direct access **/
defined('MECEXEC') or die();

/*
 * PHP QR Code encoder
 *
 * This file contains MERGED version of PHP QR Code library.
 * It was auto-generated from Pro version for your convenience.
 *
 * This merged version was configured to not requre any external files,
 * with disabled cache, error loging and weker but faster mask matching.
 * If you need tune it up please use non-merged version.
 *
 * For Pro version, documentation, examples of use please visit:
 *
 *    http://phpqrcode.sourceforge.net/
 *    https://sourceforge.net/projects/phpqrcode/
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
 

/*
 * Version: 1.1.4
 * Build: 2010100721
 */

/*
 * PHP QR Code encoder
 *
 * Common constants
 *
 * Based on libqrencode C library distributed under LGPL 2.1
 * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
// Encoding modes
 
define('QR_MODE_NUL', -1);
define('QR_MODE_NUM', 0);
define('QR_MODE_AN', 1);
define('QR_MODE_8', 2);
define('QR_MODE_KANJI', 3);
define('QR_MODE_STRUCTURE', 4);

// Levels of error correction.

define('QR_ECLEVEL_L', 0);
define('QR_ECLEVEL_M', 1);
define('QR_ECLEVEL_Q', 2);
define('QR_ECLEVEL_H', 3);

// Supported output formats

define('QR_FORMAT_TEXT', 0);
define('QR_FORMAT_PNG',  1);

class qrstr {
	public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
		$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
	}
}

/*
 * PHP QR Code encoder
 *
 * Config file, tuned-up for merged verion
 */
     
define('QR_CACHEABLE', false); // use cache - more disk reads but less CPU power, masks and format templates are stored there
define('QR_CACHE_DIR', false); // used when QR_CACHEABLE === true
define('QR_LOG_DIR', false); // default error logs dir

define('QR_FIND_BEST_MASK', true); // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
define('QR_FIND_FROM_RANDOM', 2); // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
define('QR_DEFAULT_MASK', 2); // when QR_FIND_BEST_MASK === false

define('QR_PNG_MAXIMUM_SIZE',  1024); // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images

/*
 * PHP QR Code encoder
 *
 * Toolset, handy and debug utilites.
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

class QRtools {

	//----------------------------------------------------------------------
	public static function binarize($frame)
	{
		$len = count($frame);
		foreach ($frame as &$frameLine) {
			
			for($i=0; $i<$len; $i++) {
				$frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
			}
		}
		
		return $frame;
	}
	
	//----------------------------------------------------------------------
	public function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
	{
		$barcode_array = [];
		
		if (!is_array($mode))
			$mode = explode(',', $mode);
			
		$eccLevel = 'L';
			
		if (count($mode) > 1) {
			$eccLevel = $mode[1];
		}
			
		$qrTab = QRcode::text($code, false, $eccLevel);
		$size = count($qrTab);
			
		$barcode_array['num_rows'] = $size;
		$barcode_array['num_cols'] = $size;
		$barcode_array['bcode'] = [];
			
		foreach ($qrTab as $line) {
			$arrAdd = [];
			foreach(str_split($line) as $char)
				$arrAdd[] = ($char=='1')?1:0;
			$barcode_array['bcode'][] = $arrAdd;
		}
				
		return $barcode_array;
	}
	
	//----------------------------------------------------------------------
	public function clearCache()
	{
		self::$frames = [];
	}
	
	//----------------------------------------------------------------------
	public function buildCache()
	{
		QRtools::markTime('before_build_cache');
		
		$mask = new QRmask();
		for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
			$frame = QRspec::newFrame($a);
			if (QR_IMAGE) {
				$fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
				QRimage::png(self::binarize($frame), $fileName, 1, 0);
			}
			
			$width = count($frame);
			$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
			for ($maskNo=0; $maskNo<8; $maskNo++)
				$mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
		}
		
		QRtools::markTime('after_build_cache');
	}

	//----------------------------------------------------------------------
	public static function log($outfile, $err)
	{
		if (QR_LOG_DIR !== false) {
			if ($err != '') {
				$err = date('Y-m-d H:i:s').': '.$err;
				if ($outfile !== false) {
					MEC_file::write(QR_LOG_DIR.basename($outfile).'-errors.txt', $err);
				} else {
                    MEC_file::write(QR_LOG_DIR.'errors.txt', $err);
				}
			}    
		}
	}
	
	//----------------------------------------------------------------------
	public function dumpMask($frame) 
	{
		$width = count($frame);
		for($y=0;$y<$width;$y++) {
			for($x=0;$x<$width;$x++) {
				echo ord($frame[$y][$x]).',';
			}
		}
	}
	
	//----------------------------------------------------------------------
	public static function markTime($markerId)
	{
		list($usec, $sec) = explode(" ", microtime());
		$time = ((float)$usec + (float)$sec);
		
		if (!isset($GLOBALS['qr_time_bench']))
			$GLOBALS['qr_time_bench'] = [];
		
		$GLOBALS['qr_time_bench'][$markerId] = $time;
	}
	
}

//##########################################################################

QRtools::markTime('start');

/*
 * PHP QR Code encoder
 *
 * QR Code specifications
 *
 * Based on libqrencode C library distributed under LGPL 2.1
 * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * The following data / specifications are taken from
 * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
 *  or
 * "Automatic identification and data capture techniques -- 
 *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
define('QRSPEC_VERSION_MAX', 40);
define('QRSPEC_WIDTH_MAX',   177);

define('QRCAP_WIDTH',        0);
define('QRCAP_WORDS',        1);
define('QRCAP_REMINDER',     2);
define('QRCAP_EC',           3);

class QRspec {

	public static $capacity = array(
		array(  0,    0, 0, array(   0,    0,    0,    0)),
		array( 21,   26, 0, array(   7,   10,   13,   17)), // 1
		array( 25,   44, 7, array(  10,   16,   22,   28)),
		array( 29,   70, 7, array(  15,   26,   36,   44)),
		array( 33,  100, 7, array(  20,   36,   52,   64)),
		array( 37,  134, 7, array(  26,   48,   72,   88)), // 5
		array( 41,  172, 7, array(  36,   64,   96,  112)),
		array( 45,  196, 0, array(  40,   72,  108,  130)),
		array( 49,  242, 0, array(  48,   88,  132,  156)),
		array( 53,  292, 0, array(  60,  110,  160,  192)),
		array( 57,  346, 0, array(  72,  130,  192,  224)), //10
		array( 61,  404, 0, array(  80,  150,  224,  264)),
		array( 65,  466, 0, array(  96,  176,  260,  308)),
		array( 69,  532, 0, array( 104,  198,  288,  352)),
		array( 73,  581, 3, array( 120,  216,  320,  384)),
		array( 77,  655, 3, array( 132,  240,  360,  432)), //15
		array( 81,  733, 3, array( 144,  280,  408,  480)),
		array( 85,  815, 3, array( 168,  308,  448,  532)),
		array( 89,  901, 3, array( 180,  338,  504,  588)),
		array( 93,  991, 3, array( 196,  364,  546,  650)),
		array( 97, 1085, 3, array( 224,  416,  600,  700)), //20
		array(101, 1156, 4, array( 224,  442,  644,  750)),
		array(105, 1258, 4, array( 252,  476,  690,  816)),
		array(109, 1364, 4, array( 270,  504,  750,  900)),
		array(113, 1474, 4, array( 300,  560,  810,  960)),
		array(117, 1588, 4, array( 312,  588,  870, 1050)), //25
		array(121, 1706, 4, array( 336,  644,  952, 1110)),
		array(125, 1828, 4, array( 360,  700, 1020, 1200)),
		array(129, 1921, 3, array( 390,  728, 1050, 1260)),
		array(133, 2051, 3, array( 420,  784, 1140, 1350)),
		array(137, 2185, 3, array( 450,  812, 1200, 1440)), //30
		array(141, 2323, 3, array( 480,  868, 1290, 1530)),
		array(145, 2465, 3, array( 510,  924, 1350, 1620)),
		array(149, 2611, 3, array( 540,  980, 1440, 1710)),
		array(153, 2761, 3, array( 570, 1036, 1530, 1800)),
		array(157, 2876, 0, array( 570, 1064, 1590, 1890)), //35
		array(161, 3034, 0, array( 600, 1120, 1680, 1980)),
		array(165, 3196, 0, array( 630, 1204, 1770, 2100)),
		array(169, 3362, 0, array( 660, 1260, 1860, 2220)),
		array(173, 3532, 0, array( 720, 1316, 1950, 2310)),
		array(177, 3706, 0, array( 750, 1372, 2040, 2430)) //40
	);
	
	//----------------------------------------------------------------------
	public static function getDataLength($version, $level)
	{
		return self::$capacity[$version][QRCAP_WORDS] - self::$capacity[$version][QRCAP_EC][$level];
	}
	
	//----------------------------------------------------------------------
	public static function getECCLength($version, $level)
	{
		return self::$capacity[$version][QRCAP_EC][$level];
	}
	
	//----------------------------------------------------------------------
	public static function getWidth($version)
	{
		return self::$capacity[$version][QRCAP_WIDTH];
	}
	
	//----------------------------------------------------------------------
	public static function getRemainder($version)
	{
		return self::$capacity[$version][QRCAP_REMINDER];
	}
	
	//----------------------------------------------------------------------
	public static function getMinimumVersion($size, $level)
	{

		for($i=1; $i<= QRSPEC_VERSION_MAX; $i++) {
			$words  = self::$capacity[$i][QRCAP_WORDS] - self::$capacity[$i][QRCAP_EC][$level];
			if($words >= $size) 
				return $i;
		}

		return -1;
	}

	//######################################################################
	
	public static $lengthTableBits = array(
		array(10, 12, 14),
		array( 9, 11, 13),
		array( 8, 16, 16),
		array( 8, 10, 12)
	);
	
	//----------------------------------------------------------------------
	public static function lengthIndicator($mode, $version)
	{
		if ($mode == QR_MODE_STRUCTURE)
			return 0;
			
		if ($version <= 9) {
			$l = 0;
		} else if ($version <= 26) {
			$l = 1;
		} else {
			$l = 2;
		}

		return self::$lengthTableBits[$mode][$l];
	}
	
	//----------------------------------------------------------------------
	public static function maximumWords($mode, $version)
	{
		if($mode == QR_MODE_STRUCTURE) 
			return 3;
			
		if($version <= 9) {
			$l = 0;
		} else if($version <= 26) {
			$l = 1;
		} else {
			$l = 2;
		}

		$bits = self::$lengthTableBits[$mode][$l];
		$words = (1 << $bits) - 1;
		
		if($mode == QR_MODE_KANJI) {
			$words *= 2; // the number of bytes is required
		}

		return $words;
	}

	// Error correction code -----------------------------------------------
	// Table of the error correction code (Reed-Solomon block)
	// See Table 12-16 (pp.30-36), JIS X0510:2004.

	public static $eccTable = array(
		array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)),
		array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), // 1
		array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)),
		array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)),
		array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)),
		array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), // 5
		array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)),
		array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)),
		array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)),
		array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)),
		array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), //10
		array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)),
		array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)),
		array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)),
		array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)),
		array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), //15
		array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)),
		array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)),
		array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)),
		array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)),
		array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), //20
		array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)),
		array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)),
		array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)),
		array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)),
		array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), //25
		array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)),
		array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)),
		array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)),
		array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)),
		array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), //30
		array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)),
		array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)),
		array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)),
		array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)),
		array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), //35
		array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)),
		array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)),
		array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)),
		array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)),
		array(array(19,  6), array(18, 31), array(34, 34), array(20, 61)),//40
	);                                                                       

	//----------------------------------------------------------------------
	// CACHEABLE!!!
	
	public static function getEccSpec($version, $level, array &$spec)
	{
		if (count($spec) < 5) {
			$spec = array(0,0,0,0,0);
		}

		$b1   = self::$eccTable[$version][$level][0];
		$b2   = self::$eccTable[$version][$level][1];
		$data = self::getDataLength($version, $level);
		$ecc  = self::getECCLength($version, $level);

		if($b2 == 0) {
			$spec[0] = $b1;
			$spec[1] = (int)($data / $b1);
			$spec[2] = (int)($ecc / $b1);
			$spec[3] = 0; 
			$spec[4] = 0;
		} else {
			$spec[0] = $b1;
			$spec[1] = (int)($data / ($b1 + $b2));
			$spec[2] = (int)($ecc  / ($b1 + $b2));
			$spec[3] = $b2;
			$spec[4] = $spec[1] + 1;
		}
	}

	// Alignment pattern ---------------------------------------------------

	// Positions of alignment patterns.
	// This array includes only the second and the third position of the 
	// alignment patterns. Rest of them can be calculated from the distance 
	// between them.
	 
	// See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
	 
	public static $alignmentPattern = array(      
		array( 0,  0),
		array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), // 1- 5
		array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
		array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), //11-15
		array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), //16-20
		array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), //21-25
		array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), //26-30
		array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), //31-35
		array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58), //35-40
	);                                                                                  

	
	/** --------------------------------------------------------------------
	 * Put an alignment marker.
	 * @param frame
	 * @param width
	 * @param ox,oy center coordinate of the pattern
	 */
	public static function putAlignmentMarker(array &$frame, $ox, $oy)
	{
		$finder = array(
			"\xa1\xa1\xa1\xa1\xa1",
			"\xa1\xa0\xa0\xa0\xa1",
			"\xa1\xa0\xa1\xa0\xa1",
			"\xa1\xa0\xa0\xa0\xa1",
			"\xa1\xa1\xa1\xa1\xa1"
		);                        
		
		$yStart = $oy-2;         
		$xStart = $ox-2;
		
		for($y=0; $y<5; $y++) {
			QRstr::set($frame, $xStart, $yStart+$y, $finder[$y]);
		}
	}

	//----------------------------------------------------------------------
	public static function putAlignmentPattern($version, &$frame, $width)
	{
		if($version < 2)
			return;

		$d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
		if($d < 0) {
			$w = 2;
		} else {
			$w = (int)(($width - self::$alignmentPattern[$version][0]) / $d + 2);
		}

		if($w * $w - 3 == 1) {
			$x = self::$alignmentPattern[$version][0];
			$y = self::$alignmentPattern[$version][0];
			self::putAlignmentMarker($frame, $x, $y);
			return;
		}

		$cx = self::$alignmentPattern[$version][0];
		for($x=1; $x<$w - 1; $x++) {
			self::putAlignmentMarker($frame, 6, $cx);
			self::putAlignmentMarker($frame, $cx,  6);
			$cx += $d;
		}

		$cy = self::$alignmentPattern[$version][0];
		for($y=0; $y<$w-1; $y++) {
			$cx = self::$alignmentPattern[$version][0];
			for($x=0; $x<$w-1; $x++) {
				self::putAlignmentMarker($frame, $cx, $cy);
				$cx += $d;
			}
			$cy += $d;
		}
	}

	// Version information pattern -----------------------------------------

	// Version information pattern (BCH coded).
	// See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
	
	// size: [QRSPEC_VERSION_MAX - 6]
	
	public static $versionPattern = array(
		0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d,
		0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9,
		0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
		0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64,
		0x27541, 0x28c69
	);

	//----------------------------------------------------------------------
	public static function getVersionPattern($version)
	{
		if($version < 7 || $version > QRSPEC_VERSION_MAX)
			return 0;

		return self::$versionPattern[$version -7];
	}

	// Format information --------------------------------------------------
	// See calcFormatInfo in tests/test_qrspec.c (orginal qrencode c lib)
	
	public static $formatInfo = array(
		array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976),
		array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0),
		array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed),
		array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)
	);

	public static function getFormatInfo($mask, $level)
	{
		if($mask < 0 || $mask > 7)
			return 0;
			
		if($level < 0 || $level > 3)
			return 0;                

		return self::$formatInfo[$level][$mask];
	}

	// Frame ---------------------------------------------------------------
	// Cache of initial frames.
	 
	public static $frames = [];

	/** --------------------------------------------------------------------
	 * Put a finder pattern.
	 * @param frame
	 * @param width
	 * @param ox,oy upper-left coordinate of the pattern
	 */
	public static function putFinderPattern(&$frame, $ox, $oy)
	{
		$finder = array(
			"\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
			"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
			"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
			"\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
		);                            
		
		for($y=0; $y<7; $y++) {
			QRstr::set($frame, $ox, $oy+$y, $finder[$y]);
		}
	}

	//----------------------------------------------------------------------
	public static function createFrame($version)
	{
		$width = self::$capacity[$version][QRCAP_WIDTH];
		$frameLine = str_repeat ("\0", $width);
		$frame = array_fill(0, $width, $frameLine);

		// Finder pattern
		self::putFinderPattern($frame, 0, 0);
		self::putFinderPattern($frame, $width - 7, 0);
		self::putFinderPattern($frame, 0, $width - 7);
		
		// Separator
		$yOffset = $width - 7;
		
		for($y=0; $y<7; $y++) {
			$frame[$y][7] = "\xc0";
			$frame[$y][$width - 8] = "\xc0";
			$frame[$yOffset][7] = "\xc0";
			$yOffset++;
		}
		
		$setPattern = str_repeat("\xc0", 8);
		
		QRstr::set($frame, 0, 7, $setPattern);
		QRstr::set($frame, $width-8, 7, $setPattern);
		QRstr::set($frame, 0, $width - 8, $setPattern);
	
		// Format info
		$setPattern = str_repeat("\x84", 9);
		QRstr::set($frame, 0, 8, $setPattern);
		QRstr::set($frame, $width - 8, 8, $setPattern, 8);
		
		$yOffset = $width - 8;

		for($y=0; $y<8; $y++,$yOffset++) {
			$frame[$y][8] = "\x84";
			$frame[$yOffset][8] = "\x84";
		}

		// Timing pattern  
		
		for($i=1; $i<$width-15; $i++) {
			$frame[6][7+$i] = chr(0x90 | ($i & 1));
			$frame[7+$i][6] = chr(0x90 | ($i & 1));
		}
		
		// Alignment pattern  
		self::putAlignmentPattern($version, $frame, $width);
		
		// Version information 
		if($version >= 7) {
			$vinf = self::getVersionPattern($version);

			$v = $vinf;
			
			for($x=0; $x<6; $x++) {
				for($y=0; $y<3; $y++) {
					$frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
					$v = $v >> 1;
				}
			}

			$v = $vinf;
			for($y=0; $y<6; $y++) {
				for($x=0; $x<3; $x++) {
					$frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
					$v = $v >> 1;
				}
			}
		}

		// and a little bit...  
		$frame[$width - 8][8] = "\x81";
		
		return $frame;
	}

	//----------------------------------------------------------------------
	public static function debug($frame, $binary_mode = false)
	{
		if ($binary_mode) {
		
				foreach ($frame as &$frameLine) {
					$frameLine = join('<span class="m">&nbsp;&nbsp;</span>', explode('0', $frameLine));
					$frameLine = join('&#9608;&#9608;', explode('1', $frameLine));
				}
				
				?>
			<style>
				.m { background-color: white; }
			</style>
			<?php
				echo '<pre><tt><br/ ><br/ ><br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
				echo join("<br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $frame);
				echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >';
		
		} else {
		
			foreach ($frame as &$frameLine) {
				$frameLine = join('<span class="m">&nbsp;</span>',  explode("\xc0", $frameLine));
				$frameLine = join('<span class="m">&#9618;</span>', explode("\xc1", $frameLine));
				$frameLine = join('<span class="p">&nbsp;</span>',  explode("\xa0", $frameLine));
				$frameLine = join('<span class="p">&#9618;</span>', explode("\xa1", $frameLine));
				$frameLine = join('<span class="s">&#9671;</span>', explode("\x84", $frameLine)); //format 0
				$frameLine = join('<span class="s">&#9670;</span>', explode("\x85", $frameLine)); //format 1
				$frameLine = join('<span class="x">&#9762;</span>', explode("\x81", $frameLine)); //special bit
				$frameLine = join('<span class="c">&nbsp;</span>',  explode("\x90", $frameLine)); //clock 0
				$frameLine = join('<span class="c">&#9719;</span>', explode("\x91", $frameLine)); //clock 1
				$frameLine = join('<span class="f">&nbsp;</span>',  explode("\x88", $frameLine)); //version
				$frameLine = join('<span class="f">&#9618;</span>', explode("\x89", $frameLine)); //version
				$frameLine = join('&#9830;', explode("\x01", $frameLine));
				$frameLine = join('&#8901;', explode("\0", $frameLine));
			}
			
			?>
			<style>
				.p { background-color: yellow; }
				.m { background-color: #00FF00; }
				.s { background-color: #FF0000; }
				.c { background-color: aqua; }
				.x { background-color: pink; }
				.f { background-color: gold; }
			</style>
			<?php
			echo "<pre><tt>";
			echo join("<br/ >", $frame);
			echo "</tt></pre>";
		
		}
	}

	//----------------------------------------------------------------------
	public static function serial($frame)
	{
		return gzcompress(join("\n", $frame), 9);
	}
	
	//----------------------------------------------------------------------
	public static function unserial($code)
	{
		return explode("\n", gzuncompress($code));
	}
	
	//----------------------------------------------------------------------
	public static function newFrame($version)
	{
		if($version < 1 || $version > QRSPEC_VERSION_MAX) 
			return null;

		if(!isset(self::$frames[$version])) {
			
			$fileName = QR_CACHE_DIR.'frame_'.$version.'.dat';
			
			if (QR_CACHEABLE) {
				if (file_exists($fileName)) {
					self::$frames[$version] = self::unserial(MEC_file::read($fileName));
				} else {
					self::$frames[$version] = self::createFrame($version);
                    MEC_file::write($fileName, self::serial(self::$frames[$version]));
				}
			} else {
				self::$frames[$version] = self::createFrame($version);
			}
		}
		
		if(is_null(self::$frames[$version]))
			return null;

		return self::$frames[$version];
	}

	//----------------------------------------------------------------------
	public static function rsBlockNum($spec)     { return $spec[0] + $spec[3]; }
	public static function rsBlockNum1($spec)    { return $spec[0]; }
	public static function rsDataCodes1($spec)   { return $spec[1]; }
	public static function rsEccCodes1($spec)    { return $spec[2]; }
	public static function rsBlockNum2($spec)    { return $spec[3]; }
	public static function rsDataCodes2($spec)   { return $spec[4]; }
	public static function rsEccCodes2($spec)    { return $spec[2]; }
	public static function rsDataLength($spec)   { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);    }
	public static function rsEccLength($spec)    { return ($spec[0] + $spec[3]) * $spec[2]; }
	
}

/*
 * PHP QR Code encoder
 *
 * Image output of code using GD2
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
define('QR_IMAGE', true);

class QRimage {
	
	//----------------------------------------------------------------------
	public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) 
	{
		$image = self::image($frame, $pixelPerPoint, $outerFrame);
		
		if ($filename === false) {
			header("Content-type: image/png");
			imagepng($image);
		} else {
			if($saveandprint===TRUE){
				imagepng($image, $filename);
				header("Content-type: image/png");
				imagepng($image);
			}else{
				imagepng($image, $filename);
			}
		}
		
		imagedestroy($image);
	}

	//----------------------------------------------------------------------
	public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) 
	{
		$image = self::image($frame, $pixelPerPoint, $outerFrame);
		
		if ($filename === false) {
			header("Content-type: image/jpeg");
			imagejpeg($image, null, $q);
		} else {
			imagejpeg($image, $filename, $q);            
		}
		
		imagedestroy($image);
	}

	//----------------------------------------------------------------------
	private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) 
	{
		$h = count($frame);
		$w = strlen($frame[0]);
		
		$imgW = $w + 2*$outerFrame;
		$imgH = $h + 2*$outerFrame;
		
		$base_image = imagecreate($imgW, $imgH);
		
		$col[0] = imagecolorallocate($base_image,255,255,255);
		$col[1] = imagecolorallocate($base_image,0,0,0);

		imagefill($base_image, 0, 0, $col[0]);

		for($y=0; $y<$h; $y++) {
			for($x=0; $x<$w; $x++) {
				if ($frame[$y][$x] == '1') {
					imagesetpixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]);
				}
			}
		}
		
		$target_image = imagecreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
		imagecopyresized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
		imagedestroy($base_image);
		
		return $target_image;
	}
}

/*
 * PHP QR Code encoder
 *
 * Input encoding class
 *
 * Based on libqrencode C library distributed under LGPL 2.1
 * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
define('STRUCTURE_HEADER_BITS',  20);
define('MAX_STRUCTURED_SYMBOLS', 16);

class QRinputItem {

	public $mode;
	public $size;
	public $data;
	public $bstream;

	public function __construct($mode, $size, $data, $bstream = null) 
	{
		$setData = array_slice($data, 0, $size);
		
		if (count($setData) < $size) {
			$setData = array_merge($setData, array_fill(0,$size-count($setData),0));
		}
	
		if(!QRinput::check($mode, $size, $setData)) {
			throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',', $setData));
			return null;
		}
		
		$this->mode = $mode;
		$this->size = $size;
		$this->data = $setData;
		$this->bstream = $bstream;
	}
	
	//----------------------------------------------------------------------
	public function encodeModeNum($version)
	{
		try {
		
			$words = (int)($this->size / 3);
			$bs = new QRbitstream();
			
			$val = 0x1;
			$bs->appendNum(4, $val);
			$bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);

			for($i=0; $i<$words; $i++) {
				$val  = (ord($this->data[$i*3  ]) - ord('0')) * 100;
				$val += (ord($this->data[$i*3+1]) - ord('0')) * 10;
				$val += (ord($this->data[$i*3+2]) - ord('0'));
				$bs->appendNum(10, $val);
			}

			if($this->size - $words * 3 == 1) {
				$val = ord($this->data[$words*3]) - ord('0');
				$bs->appendNum(4, $val);
			} else if($this->size - $words * 3 == 2) {
				$val  = (ord($this->data[$words*3  ]) - ord('0')) * 10;
				$val += (ord($this->data[$words*3+1]) - ord('0'));
				$bs->appendNum(7, $val);
			}

			$this->bstream = $bs;
			return 0;
			
		} catch (Exception $e) {
			return -1;
		}
	}
	
	//----------------------------------------------------------------------
	public function encodeModeAn($version)
	{
		try {
			$words = (int)($this->size / 2);
			$bs = new QRbitstream();
			
			$bs->appendNum(4, 0x02);
			$bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);

			for($i=0; $i<$words; $i++) {
				$val  = (int)QRinput::lookAnTable(ord($this->data[$i*2  ])) * 45;
				$val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));

				$bs->appendNum(11, $val);
			}

			if($this->size & 1) {
				$val = QRinput::lookAnTable(ord($this->data[$words * 2]));
				$bs->appendNum(6, $val);
			}
	
			$this->bstream = $bs;
			return 0;
		
		} catch (Exception $e) {
			return -1;
		}
	}
	
	//----------------------------------------------------------------------
	public function encodeMode8($version)
	{
		try {
			$bs = new QRbitstream();

			$bs->appendNum(4, 0x4);
			$bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);

			for($i=0; $i<$this->size; $i++) {
				$bs->appendNum(8, ord($this->data[$i]));
			}

			$this->bstream = $bs;
			return 0;
		
		} catch (Exception $e) {
			return -1;
		}
	}
	
	//----------------------------------------------------------------------
	public function encodeModeKanji($version)
	{
		try {

			$bs = new QRbitrtream();
			
			$bs->appendNum(4, 0x8);
			$bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));

			for($i=0; $i<$this->size; $i+=2) {
				$val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);
				if($val <= 0x9ffc) {
					$val -= 0x8140;
				} else {
					$val -= 0xc140;
				}
				
				$h = ($val >> 8) * 0xc0;
				$val = ($val & 0xff) + $h;

				$bs->appendNum(13, $val);
			}

			$this->bstream = $bs;
			return 0;
		
		} catch (Exception $e) {
			return -1;
		}
	}

	//----------------------------------------------------------------------
	public function encodeModeStructure()
	{
		try {
			$bs =  new QRbitstream();
			
			$bs->appendNum(4, 0x03);
			$bs->appendNum(4, ord($this->data[1]) - 1);
			$bs->appendNum(4, ord($this->data[0]) - 1);
			$bs->appendNum(8, ord($this->data[2]));

			$this->bstream = $bs;
			return 0;
		
		} catch (Exception $e) {
			return -1;
		}
	}
	
	//----------------------------------------------------------------------
	public function estimateBitStreamSizeOfEntry($version)
	{
		$bits = 0;

		if($version == 0) 
			$version = 1;

		switch($this->mode) {
			case QR_MODE_NUM:        $bits = QRinput::estimateBitsModeNum($this->size);    break;
			case QR_MODE_AN:        $bits = QRinput::estimateBitsModeAn($this->size);    break;
			case QR_MODE_8:            $bits = QRinput::estimateBitsMode8($this->size);    break;
			case QR_MODE_KANJI:        $bits = QRinput::estimateBitsModeKanji($this->size);break;
			case QR_MODE_STRUCTURE:    return STRUCTURE_HEADER_BITS;            
			default:
				return 0;
		}

		$l = QRspec::lengthIndicator($this->mode, $version);
		$m = 1 << $l;
		$num = (int)(($this->size + $m - 1) / $m);

		$bits += $num * (4 + $l);

		return $bits;
	}
	
	//----------------------------------------------------------------------
	public function encodeBitStream($version)
	{
		try {
		
			unset($this->bstream);
			$words = QRspec::maximumWords($this->mode, $version);
			
			if($this->size > $words) {
			
				$st1 = new QRinputItem($this->mode, $words, $this->data);
				$st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));

				$st1->encodeBitStream($version);
				$st2->encodeBitStream($version);
				
				$this->bstream = new QRbitstream();
				$this->bstream->append($st1->bstream);
				$this->bstream->append($st2->bstream);
				
				unset($st1);
				unset($st2);
				
			} else {
				
				$ret = 0;
				
				switch($this->mode) {
					case QR_MODE_NUM:        $ret = $this->encodeModeNum($version);    break;
					case QR_MODE_AN:        $ret = $this->encodeModeAn($version);    break;
					case QR_MODE_8:            $ret = $this->encodeMode8($version);    break;
					case QR_MODE_KANJI:        $ret = $this->encodeModeKanji($version);break;
					case QR_MODE_STRUCTURE:    $ret = $this->encodeModeStructure();    break;
					
					default:
						break;
				}
				
				if($ret < 0)
					return -1;
			}

			return $this->bstream->size();
		
		} catch (Exception $e) {
			return -1;
		}
	}
}

//##########################################################################

class QRinput {

	public $items;
	
	private $version;
	private $level;
	
	//----------------------------------------------------------------------
	public function __construct($version = 0, $level = QR_ECLEVEL_L)
	{
		if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
			throw new Exception('Invalid version no');
			return NULL;
		}
		
		$this->version = $version;
		$this->level = $level;
	}
	
	//----------------------------------------------------------------------
	public function getVersion()
	{
		return $this->version;
	}
	
	//----------------------------------------------------------------------
	public function setVersion($version)
	{
		if($version < 0 || $version > QRSPEC_VERSION_MAX) {
			throw new Exception('Invalid version no');
			return -1;
		}

		$this->version = $version;

		return 0;
	}
	
	//----------------------------------------------------------------------
	public function getErrorCorrectionLevel()
	{
		return $this->level;
	}

	//----------------------------------------------------------------------
	public function setErrorCorrectionLevel($level)
	{
		if($level > QR_ECLEVEL_H) {
			throw new Exception('Invalid ECLEVEL');
			return -1;
		}

		$this->level = $level;

		return 0;
	}
	
	//----------------------------------------------------------------------
	public function appendEntry(QRinputItem $entry)
	{
		$this->items[] = $entry;
	}
	
	//----------------------------------------------------------------------
	public function append($mode, $size, $data)
	{
		try {
			$entry = new QRinputItem($mode, $size, $data);
			$this->items[] = $entry;
			return 0;
		} catch (Exception $e) {
			return -1;
		}
	}
	
	//----------------------------------------------------------------------
	
	public function insertStructuredAppendHeader($size, $index, $parity)
	{
		if($size > MAX_STRUCTURED_SYMBOLS ) {
			throw new Exception('insertStructuredAppendHeader wrong size');
		}
		
		if($index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
			throw new Exception('insertStructuredAppendHeader wrong index');
		}

		$buf = array($size, $index, $parity);
		
		try {
			$entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
			array_unshift($this->items, $entry);
			return 0;
		} catch (Exception $e) {
			return -1;
		}
	}

	//----------------------------------------------------------------------
	public function calcParity()
	{
		$parity = 0;
		
		foreach($this->items as $item) {
			if($item->mode != QR_MODE_STRUCTURE) {
				for($i=$item->size-1; $i>=0; $i--) {
					$parity ^= $item->data[$i];
				}
			}
		}

		return $parity;
	}
	
	//----------------------------------------------------------------------
	public static function checkModeNum($size, $data)
	{
		for($i=0; $i<$size; $i++) {
			if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
				return false;
			}
		}

		return true;
	}

	//----------------------------------------------------------------------
	public static function estimateBitsModeNum($size)
	{
		$w = (int)$size / 3;
		$bits = $w * 10;
		
		switch($size - $w * 3) {
			case 1:
				$bits += 4;
				break;
			case 2:
				$bits += 7;
				break;
			default:
				break;
		}

		return $bits;
	}
	
	//----------------------------------------------------------------------
	public static $anTable = array(
		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
		36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
		 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1,
		-1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
		25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
	);
	
	//----------------------------------------------------------------------
	public static function lookAnTable($c)
	{
		return (($c > 127)?-1:self::$anTable[$c]);
	}
	
	//----------------------------------------------------------------------
	public static function checkModeAn($size, $data)
	{
		for($i=0; $i<$size; $i++) {
			if (self::lookAnTable(ord($data[$i])) == -1) {
				return false;
			}
		}

		return true;
	}
	
	//----------------------------------------------------------------------
	public static function estimateBitsModeAn($size)
	{
		$w = (int)($size / 2);
		$bits = $w * 11;
		
		if($size & 1) {
			$bits += 6;
		}

		return $bits;
	}

	//----------------------------------------------------------------------
	public static function estimateBitsMode8($size)
	{
		return $size * 8;
	}
	
	//----------------------------------------------------------------------
	public function estimateBitsModeKanji($size)
	{
		return (int)(($size / 2) * 13);
	}
	
	//----------------------------------------------------------------------
	public static function checkModeKanji($size, $data)
	{
		if($size & 1)
			return false;

		for($i=0; $i<$size; $i+=2) {
			$val = (ord($data[$i]) << 8) | ord($data[$i+1]);
			if($val < 0x8140
			|| ($val > 0x9ffc && $val < 0xe040) 
			|| $val > 0xebbf) {
				return false;
			}
		}

		return true;
	}

	/***********************************************************************
	 * Validation
	 **********************************************************************/

	public static function check($mode, $size, $data)
	{
		if($size <= 0) 
			return false;

		switch($mode) {
			case QR_MODE_NUM:       return self::checkModeNum($size, $data);   break;
			case QR_MODE_AN:        return self::checkModeAn($size, $data);    break;
			case QR_MODE_KANJI:     return self::checkModeKanji($size, $data); break;
			case QR_MODE_8:         return true; break;
			case QR_MODE_STRUCTURE: return true; break;
			
			default:
				break;
		}

		return false;
	}
	
	
	//----------------------------------------------------------------------
	public function estimateBitStreamSize($version)
	{
		$bits = 0;

		foreach($this->items as $item) {
			$bits += $item->estimateBitStreamSizeOfEntry($version);
		}

		return $bits;
	}
	
	//----------------------------------------------------------------------
	public function estimateVersion()
	{
		$version = 0;
		$prev = 0;
		do {
			$prev = $version;
			$bits = $this->estimateBitStreamSize($prev);
			$version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
			if ($version < 0) {
				return -1;
			}
		} while ($version > $prev);

		return $version;
	}
	
	//----------------------------------------------------------------------
	public static function lengthOfCode($mode, $version, $bits)
	{
		$payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
		switch($mode) {
			case QR_MODE_NUM:
				$chunks = (int)($payload / 10);
				$remain = $payload - $chunks * 10;
				$size = $chunks * 3;
				if($remain >= 7) {
					$size += 2;
				} else if($remain >= 4) {
					$size += 1;
				}
				break;
			case QR_MODE_AN:
				$chunks = (int)($payload / 11);
				$remain = $payload - $chunks * 11;
				$size = $chunks * 2;
				if($remain >= 6) 
					$size++;
				break;
			case QR_MODE_8:
				$size = (int)($payload / 8);
				break;
			case QR_MODE_KANJI:
				$size = (int)(($payload / 13) * 2);
				break;
			case QR_MODE_STRUCTURE:
				$size = (int)($payload / 8);
				break;
			default:
				$size = 0;
				break;
		}
		
		$maxsize = QRspec::maximumWords($mode, $version);
		if($size < 0) $size = 0;
		if($size > $maxsize) $size = $maxsize;

		return $size;
	}
	
	//----------------------------------------------------------------------
	public function createBitStream()
	{
		$total = 0;

		foreach($this->items as $item) {
			$bits = $item->encodeBitStream($this->version);
			
			if($bits < 0) 
				return -1;
				
			$total += $bits;
		}

		return $total;
	}
	
	//----------------------------------------------------------------------
	public function convertData()
	{
		$ver = $this->estimateVersion();
		if($ver > $this->getVersion()) {
			$this->setVersion($ver);
		}

		for(;;) {
			$bits = $this->createBitStream();
			
			if($bits < 0) 
				return -1;
				
			$ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
			if($ver < 0) {
				throw new Exception('WRONG VERSION');
				return -1;
			} else if($ver > $this->getVersion()) {
				$this->setVersion($ver);
			} else {
				break;
			}
		}

		return 0;
	}
	
	//----------------------------------------------------------------------
	public function appendPaddingBit(&$bstream)
	{
		$bits = $bstream->size();
		$maxwords = QRspec::getDataLength($this->version, $this->level);
		$maxbits = $maxwords * 8;

		if ($maxbits == $bits) {
			return 0;
		}

		if ($maxbits - $bits < 5) {
			return $bstream->appendNum($maxbits - $bits, 0);
		}

		$bits += 4;
		$words = (int)(($bits + 7) / 8);

		$padding = new QRbitstream();
		$ret = $padding->appendNum($words * 8 - $bits + 4, 0);
		
		if($ret < 0) 
			return $ret;

		$padlen = $maxwords - $words;
		
		if($padlen > 0) {
			
			$padbuf = [];
			for($i=0; $i<$padlen; $i++) {
				$padbuf[$i] = ($i&1)?0x11:0xec;
			}
			
			$ret = $padding->appendBytes($padlen, $padbuf);
			
			if($ret < 0)
				return $ret;
			
		}

		$ret = $bstream->append($padding);
		
		return $ret;
	}

	//----------------------------------------------------------------------
	public function mergeBitStream()
	{
		if($this->convertData() < 0) {
			return null;
		}

		$bstream = new QRbitstream();
		
		foreach($this->items as $item) {
			$ret = $bstream->append($item->bstream);
			if($ret < 0) {
				return null;
			}
		}

		return $bstream;
	}

	//----------------------------------------------------------------------
	public function getBitStream()
	{

		$bstream = $this->mergeBitStream();
		
		if($bstream == null) {
			return null;
		}
		
		$ret = $this->appendPaddingBit($bstream);
		if($ret < 0) {
			return null;
		}

		return $bstream;
	}
	
	//----------------------------------------------------------------------
	public function getByteStream()
	{
		$bstream = $this->getBitStream();
		if($bstream == null) {
			return null;
		}
		
		return $bstream->toByte();
	}
}

/*
 * PHP QR Code encoder
 *
 * Bitstream class
 *
 * Based on libqrencode C library distributed under LGPL 2.1
 * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
     
class QRbitstream {

	public $data = [];
	
	//----------------------------------------------------------------------
	public function size()
	{
		return count($this->data);
	}
	
	//----------------------------------------------------------------------
	public function allocate($setLength)
	{
		$this->data = array_fill(0, $setLength, 0);
		return 0;
	}

	//----------------------------------------------------------------------
	public function newFromNum($bits, $num)
	{
		$bstream = new QRbitstream();
		$bstream->allocate($bits);
		
		$mask = 1 << ($bits - 1);
		for($i=0; $i<$bits; $i++) {
			if($num & $mask) {
				$bstream->data[$i] = 1;
			} else {
				$bstream->data[$i] = 0;
			}
			$mask = $mask >> 1;
		}

		return $bstream;
	}
	
	//----------------------------------------------------------------------
	public function newFromBytes($size, $data)
	{
		$bstream = new QRbitstream();
		$bstream->allocate($size * 8);
		$p=0;

		for($i=0; $i<$size; $i++) {
			$mask = 0x80;
			for($j=0; $j<8; $j++) {
				if($data[$i] & $mask) {
					$bstream->data[$p] = 1;
				} else {
					$bstream->data[$p] = 0;
				}
				$p++;
				$mask = $mask >> 1;
			}
		}

		return $bstream;
	}
	
	//----------------------------------------------------------------------
	public function append(QRbitstream $arg)
	{
		if (is_null($arg)) {
			return -1;
		}
		
		if($arg->size() == 0) {
			return 0;
		}
		
		if($this->size() == 0) {
			$this->data = $arg->data;
			return 0;
		}
		
		$this->data = array_values(array_merge($this->data, $arg->data));

		return 0;
	}
	
	//----------------------------------------------------------------------
	public function appendNum($bits, $num)
	{
		if ($bits == 0) 
			return 0;

		$b = QRbitstream::newFromNum($bits, $num);
		
		if(is_null($b))
			return -1;

		$ret = $this->append($b);
		unset($b);

		return $ret;
	}

	//----------------------------------------------------------------------
	public function appendBytes($size, $data)
	{
		if ($size == 0) 
			return 0;

		$b = QRbitstream::newFromBytes($size, $data);
		
		if(is_null($b))
			return -1;

		$ret = $this->append($b);
		unset($b);

		return $ret;
	}
	
	//----------------------------------------------------------------------
	public function toByte()
	{
	
		$size = $this->size();

		if($size == 0) {
			return [];
		}
		
		$data = array_fill(0, (int)(($size + 7) / 8), 0);
		$bytes = (int)($size / 8);

		$p = 0;
		
		for($i=0; $i<$bytes; $i++) {
			$v = 0;
			for($j=0; $j<8; $j++) {
				$v = $v << 1;
				$v |= $this->data[$p];
				$p++;
			}
			$data[$i] = $v;
		}
		
		if($size & 7) {
			$v = 0;
			for($j=0; $j<($size & 7); $j++) {
				$v = $v << 1;
				$v |= $this->data[$p];
				$p++;
			}
			$data[$bytes] = $v;
		}

		return $data;
	}
}

/*
 * PHP QR Code encoder
 *
 * Input splitting classes
 *
 * Based on libqrencode C library distributed under LGPL 2.1
 * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * The following data / specifications are taken from
 * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
 *  or
 * "Automatic identification and data capture techniques -- 
 *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
class QRsplit {

	public $dataStr = '';
	public $input;
	public $modeHint;

	//----------------------------------------------------------------------
	public function __construct($dataStr, $input, $modeHint) 
	{
		$this->dataStr  = $dataStr;
		$this->input    = $input;
		$this->modeHint = $modeHint;
	}
	
	//----------------------------------------------------------------------
	public function isdigitat($str, $pos)
	{    
		if ($pos >= strlen($str))
			return false;
		
		return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
	}
	
	//----------------------------------------------------------------------
	public function isalnumat($str, $pos)
	{
		if ($pos >= strlen($str))
			return false;
			
		return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
	}

	//----------------------------------------------------------------------
	public function identifyMode($pos)
	{
		if ($pos >= strlen($this->dataStr)) 
			return QR_MODE_NUL;
			
		$c = $this->dataStr[$pos];
		
		if(self::isdigitat($this->dataStr, $pos)) {
			return QR_MODE_NUM;
		} else if(self::isalnumat($this->dataStr, $pos)) {
			return QR_MODE_AN;
		} else if($this->modeHint == QR_MODE_KANJI) {
		
			if ($pos+1 < strlen($this->dataStr)) 
			{
				$d = $this->dataStr[$pos+1];
				$word = (ord($c) << 8) | ord($d);
				if(($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
					return QR_MODE_KANJI;
				}
			}
		}

		return QR_MODE_8;
	} 
	
	//----------------------------------------------------------------------
	public function eatNum()
	{
		$ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());

		$p = 0;
		while(self::isdigitat($this->dataStr, $p)) {
			$p++;
		}
		
		$run = $p;
		$mode = $this->identifyMode($p);
		
		if($mode == QR_MODE_8) {
			$dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
				 + QRinput::estimateBitsMode8(1)         // + 4 + l8
				 - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
			if($dif > 0) {
				return $this->eat8();
			}
		}
		if($mode == QR_MODE_AN) {
			$dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
				 + QRinput::estimateBitsModeAn(1)        // + 4 + la
				 - QRinput::estimateBitsModeAn($run + 1);// - 4 - la
			if($dif > 0) {
				return $this->eatAn();
			}
		}
		
		$ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
		if($ret < 0)
			return -1;

		return $run;
	}
	
	//----------------------------------------------------------------------
	public function eatAn()
	{
		$la = QRspec::lengthIndicator(QR_MODE_AN,  $this->input->getVersion());
		$ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());

		$p = 0;
		
		while(self::isalnumat($this->dataStr, $p)) {
			if(self::isdigitat($this->dataStr, $p)) {
				$q = $p;
				while(self::isdigitat($this->dataStr, $q)) {
					$q++;
				}
				
				$dif = QRinput::estimateBitsModeAn($p) // + 4 + la
					 + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
					 - QRinput::estimateBitsModeAn($q); // - 4 - la
					 
				if($dif < 0) {
					break;
				} else {
					$p = $q;
				}
			} else {
				$p++;
			}
		}

		$run = $p;

		if(!self::isalnumat($this->dataStr, $p)) {
			$dif = QRinput::estimateBitsModeAn($run) + 4 + $la
				 + QRinput::estimateBitsMode8(1) // + 4 + l8
				  - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
			if($dif > 0) {
				return $this->eat8();
			}
		}

		$ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
		if($ret < 0)
			return -1;

		return $run;
	}
	
	//----------------------------------------------------------------------
	public function eatKanji()
	{
		$p = 0;
		
		while($this->identifyMode($p) == QR_MODE_KANJI) {
			$p += 2;
		}
		
		$ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
		if($ret < 0)
			return -1;

		return $run;
	}

	//----------------------------------------------------------------------
	public function eat8()
	{
		$la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
		$ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());

		$p = 1;
		$dataStrLen = strlen($this->dataStr);
		
		while($p < $dataStrLen) {
			
			$mode = $this->identifyMode($p);
			if($mode == QR_MODE_KANJI) {
				break;
			}
			if($mode == QR_MODE_NUM) {
				$q = $p;
				while(self::isdigitat($this->dataStr, $q)) {
					$q++;
				}
				$dif = QRinput::estimateBitsMode8($p) // + 4 + l8
					 + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
					 - QRinput::estimateBitsMode8($q); // - 4 - l8
				if($dif < 0) {
					break;
				} else {
					$p = $q;
				}
			} else if($mode == QR_MODE_AN) {
				$q = $p;
				while(self::isalnumat($this->dataStr, $q)) {
					$q++;
				}
				$dif = QRinput::estimateBitsMode8($p)  // + 4 + l8
					 + QRinput::estimateBitsModeAn($q - $p) + 4 + $la
					 - QRinput::estimateBitsMode8($q); // - 4 - l8
				if($dif < 0) {
					break;
				} else {
					$p = $q;
				}
			} else {
				$p++;
			}
		}

		$run = $p;
		$ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
		
		if($ret < 0)
			return -1;

		return $run;
	}

	//----------------------------------------------------------------------
	public function splitString()
	{
		while (strlen($this->dataStr) > 0)
		{
			if($this->dataStr == '')
				return 0;

			$mode = $this->identifyMode(0);
			
			switch ($mode) {
				case QR_MODE_NUM: $length = $this->eatNum(); break;
				case QR_MODE_AN:  $length = $this->eatAn(); break;
				case QR_MODE_KANJI:
					if ($hint == QR_MODE_KANJI)
							$length = $this->eatKanji();
					else    $length = $this->eat8();
					break;
				default: $length = $this->eat8(); break;
			
			}

			if($length == 0) return 0;
			if($length < 0)  return -1;
			
			$this->dataStr = substr($this->dataStr, $length);
		}
	}

	//----------------------------------------------------------------------
	public function toUpper()
	{
		$stringLen = strlen($this->dataStr);
		$p = 0;
		
		while ($p<$stringLen) {
			$mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
			if($mode == QR_MODE_KANJI) {
				$p += 2;
			} else {
				if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
					$this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
				}
				$p++;
			}
		}

		return $this->dataStr;
	}

	//----------------------------------------------------------------------
	public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
	{
		if(is_null($string) || $string == '\0' || $string == '') {
			throw new Exception('empty string!!!');
		}

		$split = new QRsplit($string, $input, $modeHint);
		
		if(!$casesensitive)
			$split->toUpper();
			
		return $split->splitString();
	}
}

/*
 * PHP QR Code encoder
 *
 * Reed-Solomon error correction support
 * 
 * Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
 * (libfec is released under the GNU Lesser General Public License.)
 *
 * Based on libqrencode C library distributed under LGPL 2.1
 * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
class QRrsItem {

	public $mm;                  // Bits per symbol 
	public $nn;                  // Symbols per block (= (1<<mm)-1) 
	public $alpha_to = [];  // log lookup table 
	public $index_of = [];  // Antilog lookup table 
	public $genpoly = [];   // Generator polynomial 
	public $nroots;              // Number of generator roots = number of parity symbols 
	public $fcr;                 // First consecutive root, index form 
	public $prim;                // Primitive element, index form 
	public $iprim;               // prim-th root of 1, index form 
	public $pad;                 // Padding bytes in shortened block 
	public $gfpoly;

	//----------------------------------------------------------------------
	public function modnn($x)
	{
		while ($x >= $this->nn) {
			$x -= $this->nn;
			$x = ($x >> $this->mm) + ($x & $this->nn);
		}
		
		return $x;
	}
	
	//----------------------------------------------------------------------
	public static function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
	{
		// Common code for intializing a Reed-Solomon control block (char or int symbols)
		// Copyright 2004 Phil Karn, KA9Q
		// May be used under the terms of the GNU Lesser General Public License (LGPL)

		$rs = null;
		
		// Check parameter ranges
		if($symsize < 0 || $symsize > 8)                     return $rs;
		if($fcr < 0 || $fcr >= (1<<$symsize))                return $rs;
		if($prim <= 0 || $prim >= (1<<$symsize))             return $rs;
		if($nroots < 0 || $nroots >= (1<<$symsize))          return $rs; // Can't have more roots than symbol values!
		if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) return $rs; // Too much padding

		$rs = new QRrsItem();
		$rs->mm = $symsize;
		$rs->nn = (1<<$symsize)-1;
		$rs->pad = $pad;

		$rs->alpha_to = array_fill(0, $rs->nn+1, 0);
		$rs->index_of = array_fill(0, $rs->nn+1, 0);
	  
		// PHP style macro replacement ;)
		$NN =& $rs->nn;
		$A0 =& $NN;
		
		// Generate Galois field lookup tables
		$rs->index_of[0] = $A0; // log(zero) = -inf
		$rs->alpha_to[$A0] = 0; // alpha**-inf = 0
		$sr = 1;
	  
		for($i=0; $i<$rs->nn; $i++) {
			$rs->index_of[$sr] = $i;
			$rs->alpha_to[$i] = $sr;
			$sr <<= 1;
			if($sr & (1<<$symsize)) {
				$sr ^= $gfpoly;
			}
			$sr &= $rs->nn;
		}
		
		if($sr != 1){
			// field generator polynomial is not primitive!
			$rs = NULL;
			return $rs;
		}

		/* Form RS code generator polynomial from its roots */
		$rs->genpoly = array_fill(0, $nroots+1, 0);
	
		$rs->fcr = $fcr;
		$rs->prim = $prim;
		$rs->nroots = $nroots;
		$rs->gfpoly = $gfpoly;

		/* Find prim-th root of 1, used in decoding */
		for($iprim=1;($iprim % $prim) != 0;$iprim += $rs->nn)
		; // intentional empty-body loop!
		
		$rs->iprim = (int)($iprim / $prim);
		$rs->genpoly[0] = 1;
		
		for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
			$rs->genpoly[$i+1] = 1;

			// Multiply rs->genpoly[] by  @**(root + x)
			for ($j = $i; $j > 0; $j--) {
				if ($rs->genpoly[$j] != 0) {
					$rs->genpoly[$j] = $rs->genpoly[$j-1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
				} else {
					$rs->genpoly[$j] = $rs->genpoly[$j-1];
				}
			}
			// rs->genpoly[0] can never be zero
			$rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
		}
		
		// convert rs->genpoly[] to index form for quicker encoding
		for ($i = 0; $i <= $nroots; $i++)
			$rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];

		return $rs;
	}
	
	//----------------------------------------------------------------------
	public function encode_rs_char($data, &$parity)
	{
		$MM       =& $this->mm;
		$NN       =& $this->nn;
		$ALPHA_TO =& $this->alpha_to;
		$INDEX_OF =& $this->index_of;
		$GENPOLY  =& $this->genpoly;
		$NROOTS   =& $this->nroots;
		$FCR      =& $this->fcr;
		$PRIM     =& $this->prim;
		$IPRIM    =& $this->iprim;
		$PAD      =& $this->pad;
		$A0       =& $NN;

		$parity = array_fill(0, $NROOTS, 0);

		for($i=0; $i< ($NN-$NROOTS-$PAD); $i++) {
			
			$feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
			if($feedback != $A0) {      
				// feedback term is non-zero
		
				// This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
				// always be for the polynomials constructed by init_rs()
				$feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);
		
				for($j=1;$j<$NROOTS;$j++) {
					$parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
				}
			}
			
			// Shift 
			array_shift($parity);
			if($feedback != $A0) {
				array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
			} else {
				array_push($parity, 0);
			}
		}
	}
}

//##########################################################################

class QRrs {

	public static $items = [];
	
	//----------------------------------------------------------------------
	public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
	{
		foreach(self::$items as $rs) {
			if($rs->pad != $pad)       continue;
			if($rs->nroots != $nroots) continue;
			if($rs->mm != $symsize)    continue;
			if($rs->gfpoly != $gfpoly) continue;
			if($rs->fcr != $fcr)       continue;
			if($rs->prim != $prim)     continue;

			return $rs;
		}

		$rs = QRrsItem::init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
		array_unshift(self::$items, $rs);

		return $rs;
	}
}

/*
 * PHP QR Code encoder
 *
 * Masking
 *
 * Based on libqrencode C library distributed under LGPL 2.1
 * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
define('N1', 3);
define('N2', 3);
define('N3', 40);
define('N4', 10);

class QRmask {

	public $runLength = [];
	
	//----------------------------------------------------------------------
	public function __construct() 
	{
		$this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
	}
	
	//----------------------------------------------------------------------
	public function writeFormatInformation($width, &$frame, $mask, $level)
	{
		$blacks = 0;
		$format =  QRspec::getFormatInfo($mask, $level);

		for($i=0; $i<8; $i++) {
			if($format & 1) {
				$blacks += 2;
				$v = 0x85;
			} else {
				$v = 0x84;
			}
			
			$frame[8][$width - 1 - $i] = chr($v);
			if($i < 6) {
				$frame[$i][8] = chr($v);
			} else {
				$frame[$i + 1][8] = chr($v);
			}
			$format = $format >> 1;
		}
		
		for($i=0; $i<7; $i++) {
			if($format & 1) {
				$blacks += 2;
				$v = 0x85;
			} else {
				$v = 0x84;
			}
			
			$frame[$width - 7 + $i][8] = chr($v);
			if($i == 0) {
				$frame[8][7] = chr($v);
			} else {
				$frame[8][6 - $i] = chr($v);
			}
			
			$format = $format >> 1;
		}

		return $blacks;
	}
	
	//----------------------------------------------------------------------
	public function mask0($x, $y) { return ($x+$y)&1;                       }
	public function mask1($x, $y) { return ($y&1);                          }
	public function mask2($x, $y) { return ($x%3);                          }
	public function mask3($x, $y) { return ($x+$y)%3;                       }
	public function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
	public function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3;           }
	public function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1;       }
	public function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1;     }
	
	//----------------------------------------------------------------------
	private function generateMaskNo($maskNo, $width, $frame)
	{
		$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
		
		for($y=0; $y<$width; $y++) {
			for($x=0; $x<$width; $x++) {
				if(ord($frame[$y][$x]) & 0x80) {
					$bitMask[$y][$x] = 0;
				} else {
					$maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
					$bitMask[$y][$x] = ($maskFunc == 0)?1:0;
				}
				
			}
		}
		
		return $bitMask;
	}
	
	//----------------------------------------------------------------------
	public function serial($bitFrame)
	{
		$codeArr = [];
		
		foreach ($bitFrame as $line)
			$codeArr[] = join('', $line);
			
		return gzcompress(join("\n", $codeArr), 9);
	}
	
	//----------------------------------------------------------------------
	public function unserial($code)
	{
		$codeArr = [];
		
		$codeLines = explode("\n", gzuncompress($code));
		foreach ($codeLines as $line)
			$codeArr[] = str_split($line);
		
		return $codeArr;
	}
	
	//----------------------------------------------------------------------
	public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) 
	{
		$b = 0;
		$bitMask = [];
		
		$fileName = QR_CACHE_DIR.'mask_'.$maskNo.DIRECTORY_SEPARATOR.'mask_'.$width.'_'.$maskNo.'.dat';

		if (QR_CACHEABLE) {
			if (file_exists($fileName)) {
				$bitMask = self::unserial(MEC_file::read($fileName));
			} else {
				$bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
				if (!file_exists(QR_CACHE_DIR.'mask_'.$maskNo))
					mkdir(QR_CACHE_DIR.'mask_'.$maskNo);
                MEC_file::write($fileName, self::serial($bitMask));
			}
		} else {
			$bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
		}

		if ($maskGenOnly)
			return;
			
		$d = $s;

		for($y=0; $y<$width; $y++) {
			for($x=0; $x<$width; $x++) {
				if($bitMask[$y][$x] == 1) {
					$d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
				}
				$b += (int)(ord($d[$y][$x]) & 1);
			}
		}

		return $b;
	}
	
	//----------------------------------------------------------------------
	public function makeMask($width, $frame, $maskNo, $level)
	{
		$masked = array_fill(0, $width, str_repeat("\0", $width));
		$this->makeMaskNo($maskNo, $width, $frame, $masked);
		$this->writeFormatInformation($width, $masked, $maskNo, $level);
   
		return $masked;
	}
	
	//----------------------------------------------------------------------
	public function calcN1N3($length)
	{
		$demerit = 0;

		for($i=0; $i<$length; $i++) {
			
			if($this->runLength[$i] >= 5) {
				$demerit += (N1 + ($this->runLength[$i] - 5));
			}
			if($i & 1) {
				if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) {
					$fact = (int)($this->runLength[$i] / 3);
					if(($this->runLength[$i-2] == $fact) &&
					   ($this->runLength[$i-1] == $fact) &&
					   ($this->runLength[$i+1] == $fact) &&
					   ($this->runLength[$i+2] == $fact)) {
						if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) {
							$demerit += N3;
						} else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
							$demerit += N3;
						}
					}
				}
			}
		}
		return $demerit;
	}
	
	//----------------------------------------------------------------------
	public function evaluateSymbol($width, $frame)
	{
		$head = 0;
		$demerit = 0;

		for($y=0; $y<$width; $y++) {
			$head = 0;
			$this->runLength[0] = 1;
			
			$frameY = $frame[$y];
			
			if ($y>0)
				$frameYM = $frame[$y-1];
			
			for($x=0; $x<$width; $x++) {
				if(($x > 0) && ($y > 0)) {
					$b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
					$w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
					
					if(($b22 | ($w22 ^ 1))&1) {                                                                     
						$demerit += N2;
					}
				}
				if(($x == 0) && (ord($frameY[$x]) & 1)) {
					$this->runLength[0] = -1;
					$head = 1;
					$this->runLength[$head] = 1;
				} else if($x > 0) {
					if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
						$head++;
						$this->runLength[$head] = 1;
					} else {
						$this->runLength[$head]++;
					}
				}
			}

			$demerit += $this->calcN1N3($head+1);
		}

		for($x=0; $x<$width; $x++) {
			$head = 0;
			$this->runLength[0] = 1;
			
			for($y=0; $y<$width; $y++) {
				if($y == 0 && (ord($frame[$y][$x]) & 1)) {
					$this->runLength[0] = -1;
					$head = 1;
					$this->runLength[$head] = 1;
				} else if($y > 0) {
					if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
						$head++;
						$this->runLength[$head] = 1;
					} else {
						$this->runLength[$head]++;
					}
				}
			}
		
			$demerit += $this->calcN1N3($head+1);
		}

		return $demerit;
	}
	
	
	//----------------------------------------------------------------------
	public function mask($width, $frame, $level)
	{
		$minDemerit = PHP_INT_MAX;
		$bestMaskNum = 0;
		$bestMask = [];
		
		$checked_masks = array(0,1,2,3,4,5,6,7);
		
		if (QR_FIND_FROM_RANDOM !== false) {
		
			$howManuOut = 8-(QR_FIND_FROM_RANDOM % 9);
			for ($i = 0; $i <  $howManuOut; $i++) {
				$remPos = rand (0, count($checked_masks)-1);
				unset($checked_masks[$remPos]);
				$checked_masks = array_values($checked_masks);
			}
		
		}
		
		$bestMask = $frame;
		 
		foreach($checked_masks as $i) {
			$mask = array_fill(0, $width, str_repeat("\0", $width));

			$demerit = 0;
			$blacks = 0;
			$blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
			$blacks += $this->writeFormatInformation($width, $mask, $i, $level);
			$blacks  = (int)(100 * $blacks / ($width * $width));
			$demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
			$demerit += $this->evaluateSymbol($width, $mask);
			
			if($demerit < $minDemerit) {
				$minDemerit = $demerit;
				$bestMask = $mask;
				$bestMaskNum = $i;
			}
		}
		
		return $bestMask;
	}
}

/*
 * PHP QR Code encoder
 *
 * Main encoder classes.
 *
 * Based on libqrencode C library distributed under LGPL 2.1
 * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
class QRrsblock {
	public $dataLength;
	public $data = [];
	public $eccLength;
	public $ecc = [];
	
	public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs)
	{
		$rs->encode_rs_char($data, $ecc);
	
		$this->dataLength = $dl;
		$this->data = $data;
		$this->eccLength = $el;
		$this->ecc = $ecc;
	}
}

//##########################################################################

class QRrawcode {
	public $version;
	public $datacode = [];
	public $ecccode = [];
	public $blocks;
	public $rsblocks = []; //of RSblock
	public $count;
	public $dataLength;
	public $eccLength;
	public $b1;
	
	//----------------------------------------------------------------------
	public function __construct(QRinput $input)
	{
		$spec = array(0,0,0,0,0);
		
		$this->datacode = $input->getByteStream();
		if(is_null($this->datacode)) {
			throw new Exception('null imput string');
		}

		QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);

		$this->version = $input->getVersion();
		$this->b1 = QRspec::rsBlockNum1($spec);
		$this->dataLength = QRspec::rsDataLength($spec);
		$this->eccLength = QRspec::rsEccLength($spec);
		$this->ecccode = array_fill(0, $this->eccLength, 0);
		$this->blocks = QRspec::rsBlockNum($spec);
		
		$ret = $this->init($spec);
		if($ret < 0) {
			throw new Exception('block alloc error');
			return null;
		}

		$this->count = 0;
	}
	
	//----------------------------------------------------------------------
	public function init(array $spec)
	{
		$dl = QRspec::rsDataCodes1($spec);
		$el = QRspec::rsEccCodes1($spec);
		$rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
		

		$blockNo = 0;
		$dataPos = 0;
		$eccPos = 0;
		for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
			$ecc = array_slice($this->ecccode,$eccPos);
			$this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el,  $ecc, $rs);
			$this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
			
			$dataPos += $dl;
			$eccPos += $el;
			$blockNo++;
		}

		if(QRspec::rsBlockNum2($spec) == 0)
			return 0;

		$dl = QRspec::rsDataCodes2($spec);
		$el = QRspec::rsEccCodes2($spec);
		$rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
		
		if($rs == NULL) return -1;
		
		for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
			$ecc = array_slice($this->ecccode,$eccPos);
			$this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
			$this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
			
			$dataPos += $dl;
			$eccPos += $el;
			$blockNo++;
		}

		return 0;
	}
	
	//----------------------------------------------------------------------
	public function getCode()
	{
		if($this->count < $this->dataLength) {
			$row = $this->count % $this->blocks;
			$col = $this->count / $this->blocks;
			if($col >= $this->rsblocks[0]->dataLength) {
				$row += $this->b1;
			}
			$ret = $this->rsblocks[$row]->data[$col];
		} else if($this->count < $this->dataLength + $this->eccLength) {
			$row = ($this->count - $this->dataLength) % $this->blocks;
			$col = ($this->count - $this->dataLength) / $this->blocks;
			$ret = $this->rsblocks[$row]->ecc[$col];
		} else {
			return 0;
		}
		$this->count++;
		
		return $ret;
	}
}

//##########################################################################

class QRcode {

	public $version;
	public $width;
	public $data; 
	
	//----------------------------------------------------------------------
	public function encodeMask(QRinput $input, $mask)
	{
		if($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
			throw new Exception('wrong version');
		}
		if($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
			throw new Exception('wrong level');
		}

		$raw = new QRrawcode($input);
		
		QRtools::markTime('after_raw');
		
		$version = $raw->version;
		$width = QRspec::getWidth($version);
		$frame = QRspec::newFrame($version);
		
		$filler = new FrameFiller($width, $frame);
		if(is_null($filler)) {
			return NULL;
		}

		// inteleaved data and ecc codes
		for($i=0; $i<$raw->dataLength + $raw->eccLength; $i++) {
			$code = $raw->getCode();
			$bit = 0x80;
			for($j=0; $j<8; $j++) {
				$addr = $filler->next();
				$filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
				$bit = $bit >> 1;
			}
		}
		
		QRtools::markTime('after_filler');
		
		unset($raw);
		
		// remainder bits
		$j = QRspec::getRemainder($version);
		for($i=0; $i<$j; $i++) {
			$addr = $filler->next();
			$filler->setFrameAt($addr, 0x02);
		}
		
		$frame = $filler->frame;
		unset($filler);
		
		
		// masking
		$maskObj = new QRmask();
		if($mask < 0) {
		
			if (QR_FIND_BEST_MASK) {
				$masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
			} else {
				$masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
			}
		} else {
			$masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
		}
		
		if($masked == NULL) {
			return NULL;
		}
		
		QRtools::markTime('after_mask');
		
		$this->version = $version;
		$this->width = $width;
		$this->data = $masked;
		
		return $this;
	}

	//----------------------------------------------------------------------
	public function encodeInput(QRinput $input)
	{
		return $this->encodeMask($input, -1);
	}
	
	//----------------------------------------------------------------------
	public function encodeString8bit($string, $version, $level)
	{
		if(string == NULL) {
			throw new Exception('empty string!');
			return NULL;
		}

		$input = new QRinput($version, $level);
		if($input == NULL) return NULL;

		$ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
		if($ret < 0) {
			unset($input);
			return NULL;
		}
		return $this->encodeInput($input);
	}

	//----------------------------------------------------------------------
	public function encodeString($string, $version, $level, $hint, $casesensitive)
	{

		if($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
			throw new Exception('bad hint');
			return NULL;
		}

		$input = new QRinput($version, $level);
		if($input == NULL) return NULL;

		$ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
		if($ret < 0) {
			return NULL;
		}

		return $this->encodeInput($input);
	}
	
	//-------------------------------------- Created by hoseinrafiei@gmail.com -------------------------------//
	public function getImgResult($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false) 
	{
		$enc = QRencode::factory($level, $size, $margin);
		return $enc->getEncodedPNG($text, $outfile, $saveandprint=false);
	}
	
	//----------------------------------------------------------------------
	public function getEncodedPNG($intext, $outfile = false,$saveandprint=false) 
	{
		try {
		
			ob_start();
			$tab = $this->encode($intext);
			$err = ob_get_contents();
			ob_end_clean();
			
			if ($err != '')
				QRtools::log($outfile, $err);
			
			$maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));
			
			QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);
		
		} catch (Exception $e) {
		
			QRtools::log($outfile, $e->getMessage());
		
		}
	}
	
	//----------------------------------------------------------------------
	public function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false) 
	{
		$enc = QRencode::factory($level, $size, $margin);
		return $enc->encodePNG($text, $outfile, $saveandprint=false);
	}

	//----------------------------------------------------------------------
	public function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
	{
		$enc = QRencode::factory($level, $size, $margin);
		return $enc->encode($text, $outfile);
	}

	//----------------------------------------------------------------------
	public function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
	{
		$enc = QRencode::factory($level, $size, $margin);
		return $enc->encodeRAW($text, $outfile);
	}
}

//##########################################################################

class FrameFiller {

	public $width;
	public $frame;
	public $x;
	public $y;
	public $dir;
	public $bit;
	
	//----------------------------------------------------------------------
	public function __construct($width, &$frame)
	{
		$this->width = $width;
		$this->frame = $frame;
		$this->x = $width - 1;
		$this->y = $width - 1;
		$this->dir = -1;
		$this->bit = -1;
	}
	
	//----------------------------------------------------------------------
	public function setFrameAt($at, $val)
	{
		$this->frame[$at['y']][$at['x']] = chr($val);
	}
	
	//----------------------------------------------------------------------
	public function getFrameAt($at)
	{
		return ord($this->frame[$at['y']][$at['x']]);
	}
	
	//----------------------------------------------------------------------
	public function next()
	{
		do {
		
			if($this->bit == -1) {
				$this->bit = 0;
				return array('x'=>$this->x, 'y'=>$this->y);
			}

			$x = $this->x;
			$y = $this->y;
			$w = $this->width;

			if($this->bit == 0) {
				$x--;
				$this->bit++;
			} else {
				$x++;
				$y += $this->dir;
				$this->bit--;
			}

			if($this->dir < 0) {
				if($y < 0) {
					$y = 0;
					$x -= 2;
					$this->dir = 1;
					if($x == 6) {
						$x--;
						$y = 9;
					}
				}
			} else {
				if($y == $w) {
					$y = $w - 1;
					$x -= 2;
					$this->dir = -1;
					if($x == 6) {
						$x--;
						$y -= 8;
					}
				}
			}
			if($x < 0 || $y < 0) return null;

			$this->x = $x;
			$this->y = $y;

		} while(ord($this->frame[$y][$x]) & 0x80);
					
		return array('x'=>$x, 'y'=>$y);
	}
	
}

//##########################################################################    

class QRencode {

	public $casesensitive = true;
	public $eightbit = false;
	
	public $version = 0;
	public $size = 3;
	public $margin = 4;
	
	public $structured = 0; // not supported yet
	
	public $level = QR_ECLEVEL_L;
	public $hint = QR_MODE_8;
	
	//----------------------------------------------------------------------
	public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4)
	{
		$enc = new QRencode();
		$enc->size = $size;
		$enc->margin = $margin;
		
		switch ($level.'') {
			case '0':
			case '1':
			case '2':
			case '3':
					$enc->level = $level;
				break;
			case 'l':
			case 'L':
					$enc->level = QR_ECLEVEL_L;
				break;
			case 'm':
			case 'M':
					$enc->level = QR_ECLEVEL_M;
				break;
			case 'q':
			case 'Q':
					$enc->level = QR_ECLEVEL_Q;
				break;
			case 'h':
			case 'H':
					$enc->level = QR_ECLEVEL_H;
				break;
		}
		
		return $enc;
	}
	
	//----------------------------------------------------------------------
	public function encodeRAW($intext, $outfile = false) 
	{
		$code = new QRcode();

		if($this->eightbit) {
			$code->encodeString8bit($intext, $this->version, $this->level);
		} else {
			$code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
		}
		
		return $code->data;
	}

	//----------------------------------------------------------------------
	public function encode($intext, $outfile = false) 
	{
		$code = new QRcode();

		if($this->eightbit) {
			$code->encodeString8bit($intext, $this->version, $this->level);
		} else {
			$code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
		}
		
		QRtools::markTime('after_encode');
		
		if ($outfile!== false) {
            MEC_file::write($outfile, join("\n", QRtools::binarize($code->data)));
		} else {
			return QRtools::binarize($code->data);
		}
	}
	
	//----------------------------------------------------------------------
	public function encodePNG($intext, $outfile = false,$saveandprint=false) 
	{
		try {
		
			ob_start();
			$tab = $this->encode($intext);
			$err = ob_get_contents();
			ob_end_clean();
			
			if ($err != '')
				QRtools::log($outfile, $err);
			
			$maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));
			
			QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);
		
		} catch (Exception $e) {
		
			QRtools::log($outfile, $e->getMessage());
		
		}
	}
}