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<?php

/*
 * PHP QR Code encoder
 *
 * This file contains MERGED version of PHP QR Code library.
 * It was auto-generated from full 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 full 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: 
 * Build: 
 */

//---- qrconst.php -----------------------------

/*
 * 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));
		}
	}

//---- merged_config.php -----------------------------

/*
 * 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

//---- qrtools.php -----------------------------

/*
 * 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 static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
        {
            $barcode_array = 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'] = array();
                
            foreach ($qrTab as $line) {
                $arrAdd = array();
                foreach(str_split($line) as $char)
                    $arrAdd[] = ($char=='1')?1:0;
                $barcode_array['bcode'][] = $arrAdd;
            }
                    
            return $barcode_array;
        }
        
        //----------------------------------------------------------------------
        public static function clearCache()
        {
            self::$frames = array();
        }
        
        //----------------------------------------------------------------------
        public static 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 != '') {
                    if ($outfile !== false) {
                        file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
                    } else {
                        file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
                    }
                }    
            }
        }
        
        //----------------------------------------------------------------------
        public static 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'] = array();
            
            $GLOBALS['qr_time_bench'][$markerId] = $time;
        }
        
        //----------------------------------------------------------------------
        public static function timeBenchmark()
        {
            self::markTime('finish');
        
            $lastTime = 0;
            $startTime = 0;
            $p = 0;

echo '<table cellpadding="3" cellspacing="1">
                    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
                    <tbody>';

foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
                if ($p > 0) {
                    echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime-$lastTime, 6).'s</td></tr>';
                } else {
                    $startTime = $thisTime;
                }
                
                $p++;
                $lastTime = $thisTime;
            }
            
            echo '</tbody><tfoot>
                <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime-$startTime, 6).'s</td></tr>
            </tfoot>
            </table>';
        }
        
    }
    
    //##########################################################################
    
    QRtools::markTime('start');

//---- qrspec.php -----------------------------

//---- qrimage.php -----------------------------

/*
 * 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;
        }
    }

//---- qrinput.php -----------------------------

/*
 * 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]));
                }

$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) {
                
                $padbuf = array();
                for($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();
        }
    }

//---- qrbitstream.php -----------------------------

/*
 * 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 = array();
        
        //----------------------------------------------------------------------
        public function size()
        {
            return count($this->data);
        }
        
        //----------------------------------------------------------------------
        public function allocate($setLength)
        {
            $this->data = array_fill(0, $setLength, 0);
            return 0;
        }
    
        //----------------------------------------------------------------------
        public static 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 static 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 array();
            }
            
            $data = array_fill(0, (int)(($size + 7) / 8), 0);
            $bytes = (int)($size / 8);

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

}

//---- qrsplit.php -----------------------------

/*
 * 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 static function isdigitat($str, $pos)
        {    
            if ($pos >= strlen($str))
                return false;
            
            return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
        }
        
        //----------------------------------------------------------------------
        public static 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();
        }
    }

//---- qrrscode.php -----------------------------

/*
 * 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 = array();  // log lookup table 
        public $index_of = array();  // Antilog lookup table 
        public $genpoly = array();   // 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 = array();
        
        //----------------------------------------------------------------------
        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;
        }
    }

//---- qrmask.php -----------------------------

//---- qrencode.php -----------------------------

/*
 * 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 = array();
        public $eccLength;
        public $ecc = array();
        
        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 = array();
        public $ecccode = array();
        public $blocks;
        public $rsblocks = array(); //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()
        {
            $ret;

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);
        }
        
        //----------------------------------------------------------------------
        public static 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 static 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 static 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();

//----------------------------------------------------------------------
        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 ($outfile!== false) {
                file_put_contents($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());
            
            }
        }
    }