查看文件: qrspec.php
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<?php /* * 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 $frames = array(); /** -------------------------------------------------------------------- * Put a finder pattern. * @param frame * @param width * @param ox,oy upper-left coordinate of the pattern */ public static function putFinderPattern(&$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"> </span>', explode('0', $frameLine)); $frameLine = join('██', explode('1', $frameLine)); } ?> <style> .m { background-color: white; } </style> <?php echo '<pre><tt><br/ ><br/ ><br/ > '; echo join("<br/ > ", $frame); echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >'; } else { foreach ($frame as &$frameLine) { $frameLine = join('<span class="m"> </span>', explode("\xc0", $frameLine)); $frameLine = join('<span class="m">▒</span>', explode("\xc1", $frameLine)); $frameLine = join('<span class="p"> </span>', explode("\xa0", $frameLine)); $frameLine = join('<span class="p">▒</span>', explode("\xa1", $frameLine)); $frameLine = join('<span class="s">◇</span>', explode("\x84", $frameLine)); //format 0 $frameLine = join('<span class="s">◆</span>', explode("\x85", $frameLine)); //format 1 $frameLine = join('<span class="x">☢</span>', explode("\x81", $frameLine)); //special bit $frameLine = join('<span class="c"> </span>', explode("\x90", $frameLine)); //clock 0 $frameLine = join('<span class="c">◷</span>', explode("\x91", $frameLine)); //clock 1 $frameLine = join('<span class="f"> </span>', explode("\x88", $frameLine)); //version $frameLine = join('<span class="f">▒</span>', explode("\x89", $frameLine)); //version $frameLine = join('♦', explode("\x01", $frameLine)); $frameLine = join('⋅', 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[$version] = self::unserial(file_get_contents($fileName)); } else { self::$frames[$version] = self::createFrame($version); file_put_contents($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]; } }
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