diff --git a/js/package.json b/js/package.json index 8a6fc6c..85d7484 100644 --- a/js/package.json +++ b/js/package.json @@ -16,5 +16,11 @@ "qrcode", "generator" ], - "license": "MIT" -} \ No newline at end of file + "license": "MIT", + "directories": { + "test": "test" + }, + "scripts": { + "test": "mocha" + } +} diff --git a/js/qrcode.js b/js/qrcode.js index b68d004..cc5e0b5 100644 --- a/js/qrcode.js +++ b/js/qrcode.js @@ -1,1824 +1,1940 @@ -//--------------------------------------------------------------------- -// -// QR Code Generator for JavaScript -// -// Copyright (c) 2009 Kazuhiko Arase -// -// URL: http://www.d-project.com/ -// -// Licensed under the MIT license: -// http://www.opensource.org/licenses/mit-license.php -// -// The word 'QR Code' is registered trademark of -// DENSO WAVE INCORPORATED -// http://www.denso-wave.com/qrcode/faqpatent-e.html -// -//--------------------------------------------------------------------- - -var qrcode = function() { - - //--------------------------------------------------------------------- - // qrcode - //--------------------------------------------------------------------- - - /** - * qrcode - * @param typeNumber 1 to 40 - * @param errorCorrectLevel 'L','M','Q','H' - */ - var qrcode = function(typeNumber, errorCorrectLevel) { - - var PAD0 = 0xEC; - var PAD1 = 0x11; - - var _typeNumber = typeNumber; - var _errorCorrectLevel = QRErrorCorrectLevel[errorCorrectLevel]; - var _modules = null; - var _moduleCount = 0; - var _dataCache = null; - var _dataList = new Array(); - - var _this = {}; - - var makeImpl = function(test, maskPattern) { - - _moduleCount = _typeNumber * 4 + 17; - _modules = function(moduleCount) { - var modules = new Array(moduleCount); - for (var row = 0; row < moduleCount; row += 1) { - modules[row] = new Array(moduleCount); - for (var col = 0; col < moduleCount; col += 1) { - modules[row][col] = null; - } - } - return modules; - }(_moduleCount); - - setupPositionProbePattern(0, 0); - setupPositionProbePattern(_moduleCount - 7, 0); - setupPositionProbePattern(0, _moduleCount - 7); - setupPositionAdjustPattern(); - setupTimingPattern(); - setupTypeInfo(test, maskPattern); - - if (_typeNumber >= 7) { - setupTypeNumber(test); - } - - if (_dataCache == null) { - _dataCache = createData(_typeNumber, _errorCorrectLevel, _dataList); - } - - mapData(_dataCache, maskPattern); - }; - - var setupPositionProbePattern = function(row, col) { - - for (var r = -1; r <= 7; r += 1) { - - if (row + r <= -1 || _moduleCount <= row + r) continue; - - for (var c = -1; c <= 7; c += 1) { - - if (col + c <= -1 || _moduleCount <= col + c) continue; - - if ( (0 <= r && r <= 6 && (c == 0 || c == 6) ) - || (0 <= c && c <= 6 && (r == 0 || r == 6) ) - || (2 <= r && r <= 4 && 2 <= c && c <= 4) ) { - _modules[row + r][col + c] = true; - } else { - _modules[row + r][col + c] = false; - } - } - } - }; - - var getBestMaskPattern = function() { - - var minLostPoint = 0; - var pattern = 0; - - for (var i = 0; i < 8; i += 1) { - - makeImpl(true, i); - - var lostPoint = QRUtil.getLostPoint(_this); - - if (i == 0 || minLostPoint > lostPoint) { - minLostPoint = lostPoint; - pattern = i; - } - } - - return pattern; - }; - - var setupTimingPattern = function() { - - for (var r = 8; r < _moduleCount - 8; r += 1) { - if (_modules[r][6] != null) { - continue; - } - _modules[r][6] = (r % 2 == 0); - } - - for (var c = 8; c < _moduleCount - 8; c += 1) { - if (_modules[6][c] != null) { - continue; - } - _modules[6][c] = (c % 2 == 0); - } - }; - - var setupPositionAdjustPattern = function() { - - var pos = QRUtil.getPatternPosition(_typeNumber); - - for (var i = 0; i < pos.length; i += 1) { - - for (var j = 0; j < pos.length; j += 1) { - - var row = pos[i]; - var col = pos[j]; - - if (_modules[row][col] != null) { - continue; - } - - for (var r = -2; r <= 2; r += 1) { - - for (var c = -2; c <= 2; c += 1) { - - if (r == -2 || r == 2 || c == -2 || c == 2 - || (r == 0 && c == 0) ) { - _modules[row + r][col + c] = true; - } else { - _modules[row + r][col + c] = false; - } - } - } - } - } - }; - - var setupTypeNumber = function(test) { - - var bits = QRUtil.getBCHTypeNumber(_typeNumber); - - for (var i = 0; i < 18; i += 1) { - var mod = (!test && ( (bits >> i) & 1) == 1); - _modules[Math.floor(i / 3)][i % 3 + _moduleCount - 8 - 3] = mod; - } - - for (var i = 0; i < 18; i += 1) { - var mod = (!test && ( (bits >> i) & 1) == 1); - _modules[i % 3 + _moduleCount - 8 - 3][Math.floor(i / 3)] = mod; - } - }; - - var setupTypeInfo = function(test, maskPattern) { - - var data = (_errorCorrectLevel << 3) | maskPattern; - var bits = QRUtil.getBCHTypeInfo(data); - - // vertical - for (var i = 0; i < 15; i += 1) { - - var mod = (!test && ( (bits >> i) & 1) == 1); - - if (i < 6) { - _modules[i][8] = mod; - } else if (i < 8) { - _modules[i + 1][8] = mod; - } else { - _modules[_moduleCount - 15 + i][8] = mod; - } - } - - // horizontal - for (var i = 0; i < 15; i += 1) { - - var mod = (!test && ( (bits >> i) & 1) == 1); - - if (i < 8) { - _modules[8][_moduleCount - i - 1] = mod; - } else if (i < 9) { - _modules[8][15 - i - 1 + 1] = mod; - } else { - _modules[8][15 - i - 1] = mod; - } - } - - // fixed module - _modules[_moduleCount - 8][8] = (!test); - }; - - var mapData = function(data, maskPattern) { - - var inc = -1; - var row = _moduleCount - 1; - var bitIndex = 7; - var byteIndex = 0; - var maskFunc = QRUtil.getMaskFunction(maskPattern); - - for (var col = _moduleCount - 1; col > 0; col -= 2) { - - if (col == 6) col -= 1; - - while (true) { - - for (var c = 0; c < 2; c += 1) { - - if (_modules[row][col - c] == null) { - - var dark = false; - - if (byteIndex < data.length) { - dark = ( ( (data[byteIndex] >>> bitIndex) & 1) == 1); - } - - var mask = maskFunc(row, col - c); - - if (mask) { - dark = !dark; - } - - _modules[row][col - c] = dark; - bitIndex -= 1; - - if (bitIndex == -1) { - byteIndex += 1; - bitIndex = 7; - } - } - } - - row += inc; - - if (row < 0 || _moduleCount <= row) { - row -= inc; - inc = -inc; - break; - } - } - } - }; - - var createBytes = function(buffer, rsBlocks) { - - var offset = 0; - - var maxDcCount = 0; - var maxEcCount = 0; - - var dcdata = new Array(rsBlocks.length); - var ecdata = new Array(rsBlocks.length); - - for (var r = 0; r < rsBlocks.length; r += 1) { - - var dcCount = rsBlocks[r].dataCount; - var ecCount = rsBlocks[r].totalCount - dcCount; - - maxDcCount = Math.max(maxDcCount, dcCount); - maxEcCount = Math.max(maxEcCount, ecCount); - - dcdata[r] = new Array(dcCount); - - for (var i = 0; i < dcdata[r].length; i += 1) { - dcdata[r][i] = 0xff & buffer.getBuffer()[i + offset]; - } - offset += dcCount; - - var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount); - var rawPoly = qrPolynomial(dcdata[r], rsPoly.getLength() - 1); - - var modPoly = rawPoly.mod(rsPoly); - ecdata[r] = new Array(rsPoly.getLength() - 1); - for (var i = 0; i < ecdata[r].length; i += 1) { - var modIndex = i + modPoly.getLength() - ecdata[r].length; - ecdata[r][i] = (modIndex >= 0)? modPoly.getAt(modIndex) : 0; - } - } - - var totalCodeCount = 0; - for (var i = 0; i < rsBlocks.length; i += 1) { - totalCodeCount += rsBlocks[i].totalCount; - } - - var data = new Array(totalCodeCount); - var index = 0; - - for (var i = 0; i < maxDcCount; i += 1) { - for (var r = 0; r < rsBlocks.length; r += 1) { - if (i < dcdata[r].length) { - data[index] = dcdata[r][i]; - index += 1; - } - } - } - - for (var i = 0; i < maxEcCount; i += 1) { - for (var r = 0; r < rsBlocks.length; r += 1) { - if (i < ecdata[r].length) { - data[index] = ecdata[r][i]; - index += 1; - } - } - } - - return data; - }; - - var createData = function(typeNumber, errorCorrectLevel, dataList) { - - var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel); - - var buffer = qrBitBuffer(); - - for (var i = 0; i < dataList.length; i += 1) { - var data = dataList[i]; - buffer.put(data.getMode(), 4); - buffer.put(data.getLength(), QRUtil.getLengthInBits(data.getMode(), typeNumber) ); - data.write(buffer); - } - - // calc num max data. - var totalDataCount = 0; - for (var i = 0; i < rsBlocks.length; i += 1) { - totalDataCount += rsBlocks[i].dataCount; - } - - if (buffer.getLengthInBits() > totalDataCount * 8) { - throw new Error('code length overflow. (' - + buffer.getLengthInBits() - + '>' - + totalDataCount * 8 - + ')'); - } - - // end code - if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) { - buffer.put(0, 4); - } - - // padding - while (buffer.getLengthInBits() % 8 != 0) { - buffer.putBit(false); - } - - // padding - while (true) { - - if (buffer.getLengthInBits() >= totalDataCount * 8) { - break; - } - buffer.put(PAD0, 8); - - if (buffer.getLengthInBits() >= totalDataCount * 8) { - break; - } - buffer.put(PAD1, 8); - } - - return createBytes(buffer, rsBlocks); - }; - - _this.addData = function(data) { - var newData = qr8BitByte(data); - _dataList.push(newData); - _dataCache = null; - }; - - _this.isDark = function(row, col) { - if (row < 0 || _moduleCount <= row || col < 0 || _moduleCount <= col) { - throw new Error(row + ',' + col); - } - return _modules[row][col]; - }; - - _this.getModuleCount = function() { - return _moduleCount; - }; - - _this.make = function() { - makeImpl(false, getBestMaskPattern() ); - }; - - _this.createTableTag = function(cellSize, margin) { - - cellSize = cellSize || 2; - margin = (typeof margin == 'undefined')? cellSize * 4 : margin; - - var qrHtml = ''; - - qrHtml += ''; - qrHtml += ''; - - for (var r = 0; r < _this.getModuleCount(); r += 1) { - - qrHtml += ''; - - for (var c = 0; c < _this.getModuleCount(); c += 1) { - qrHtml += ''; - } - - qrHtml += ''; - qrHtml += '
'; - } - - qrHtml += '
'; - - return qrHtml; - }; - - _this.createImgTag = function(cellSize, margin) { - - cellSize = cellSize || 2; - margin = (typeof margin == 'undefined')? cellSize * 4 : margin; - - var size = _this.getModuleCount() * cellSize + margin * 2; - var min = margin; - var max = size - margin; - - return createImgTag(size, size, function(x, y) { - if (min <= x && x < max && min <= y && y < max) { - var c = Math.floor( (x - min) / cellSize); - var r = Math.floor( (y - min) / cellSize); - return _this.isDark(r, c)? 0 : 1; - } else { - return 1; - } - } ); - }; - - return _this; - }; - - //--------------------------------------------------------------------- - // qrcode.stringToBytes - //--------------------------------------------------------------------- - - qrcode.stringToBytes = function(s) { - var bytes = new Array(); - for (var i = 0; i < s.length; i += 1) { - var c = s.charCodeAt(i); - bytes.push(c & 0xff); - } - return bytes; - }; - - //--------------------------------------------------------------------- - // qrcode.createStringToBytes - //--------------------------------------------------------------------- - - /** - * @param unicodeData base64 string of byte array. - * [16bit Unicode],[16bit Bytes], ... - * @param numChars - */ - qrcode.createStringToBytes = function(unicodeData, numChars) { - - // create conversion map. - - var unicodeMap = function() { - - var bin = base64DecodeInputStream(unicodeData); - var read = function() { - var b = bin.read(); - if (b == -1) throw new Error(); - return b; - }; - - var count = 0; - var unicodeMap = {}; - while (true) { - var b0 = bin.read(); - if (b0 == -1) break; - var b1 = read(); - var b2 = read(); - var b3 = read(); - var k = String.fromCharCode( (b0 << 8) | b1); - var v = (b2 << 8) | b3; - unicodeMap[k] = v; - count += 1; - } - if (count != numChars) { - throw new Error(count + ' != ' + numChars); - } - - return unicodeMap; - }(); - - var unknownChar = '?'.charCodeAt(0); - - return function(s) { - var bytes = new Array(); - for (var i = 0; i < s.length; i += 1) { - var c = s.charCodeAt(i); - if (c < 128) { - bytes.push(c); - } else { - var b = unicodeMap[s.charAt(i)]; - if (typeof b == 'number') { - if ( (b & 0xff) == b) { - // 1byte - bytes.push(b); - } else { - // 2bytes - bytes.push(b >>> 8); - bytes.push(b & 0xff); - } - } else { - bytes.push(unknownChar); - } - } - } - return bytes; - }; - }; - - //--------------------------------------------------------------------- - // QRMode - //--------------------------------------------------------------------- - - var QRMode = { - MODE_NUMBER : 1 << 0, - MODE_ALPHA_NUM : 1 << 1, - MODE_8BIT_BYTE : 1 << 2, - MODE_KANJI : 1 << 3 - }; - - //--------------------------------------------------------------------- - // QRErrorCorrectLevel - //--------------------------------------------------------------------- - - var QRErrorCorrectLevel = { - L : 1, - M : 0, - Q : 3, - H : 2 - }; - - //--------------------------------------------------------------------- - // QRMaskPattern - //--------------------------------------------------------------------- - - var QRMaskPattern = { - PATTERN000 : 0, - PATTERN001 : 1, - PATTERN010 : 2, - PATTERN011 : 3, - PATTERN100 : 4, - PATTERN101 : 5, - PATTERN110 : 6, - PATTERN111 : 7 - }; - - //--------------------------------------------------------------------- - // QRUtil - //--------------------------------------------------------------------- - - var QRUtil = function() { - - var PATTERN_POSITION_TABLE = [ - [], - [6, 18], - [6, 22], - [6, 26], - [6, 30], - [6, 34], - [6, 22, 38], - [6, 24, 42], - [6, 26, 46], - [6, 28, 50], - [6, 30, 54], - [6, 32, 58], - [6, 34, 62], - [6, 26, 46, 66], - [6, 26, 48, 70], - [6, 26, 50, 74], - [6, 30, 54, 78], - [6, 30, 56, 82], - [6, 30, 58, 86], - [6, 34, 62, 90], - [6, 28, 50, 72, 94], - [6, 26, 50, 74, 98], - [6, 30, 54, 78, 102], - [6, 28, 54, 80, 106], - [6, 32, 58, 84, 110], - [6, 30, 58, 86, 114], - [6, 34, 62, 90, 118], - [6, 26, 50, 74, 98, 122], - [6, 30, 54, 78, 102, 126], - [6, 26, 52, 78, 104, 130], - [6, 30, 56, 82, 108, 134], - [6, 34, 60, 86, 112, 138], - [6, 30, 58, 86, 114, 142], - [6, 34, 62, 90, 118, 146], - [6, 30, 54, 78, 102, 126, 150], - [6, 24, 50, 76, 102, 128, 154], - [6, 28, 54, 80, 106, 132, 158], - [6, 32, 58, 84, 110, 136, 162], - [6, 26, 54, 82, 110, 138, 166], - [6, 30, 58, 86, 114, 142, 170] - ]; - var G15 = (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0); - var G18 = (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0); - var G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1); - - var _this = {}; - - var getBCHDigit = function(data) { - var digit = 0; - while (data != 0) { - digit += 1; - data >>>= 1; - } - return digit; - }; - - _this.getBCHTypeInfo = function(data) { - var d = data << 10; - while (getBCHDigit(d) - getBCHDigit(G15) >= 0) { - d ^= (G15 << (getBCHDigit(d) - getBCHDigit(G15) ) ); - } - return ( (data << 10) | d) ^ G15_MASK; - }; - - _this.getBCHTypeNumber = function(data) { - var d = data << 12; - while (getBCHDigit(d) - getBCHDigit(G18) >= 0) { - d ^= (G18 << (getBCHDigit(d) - getBCHDigit(G18) ) ); - } - return (data << 12) | d; - }; - - _this.getPatternPosition = function(typeNumber) { - return PATTERN_POSITION_TABLE[typeNumber - 1]; - }; - - _this.getMaskFunction = function(maskPattern) { - - switch (maskPattern) { - - case QRMaskPattern.PATTERN000 : - return function(i, j) { return (i + j) % 2 == 0; }; - case QRMaskPattern.PATTERN001 : - return function(i, j) { return i % 2 == 0; }; - case QRMaskPattern.PATTERN010 : - return function(i, j) { return j % 3 == 0; }; - case QRMaskPattern.PATTERN011 : - return function(i, j) { return (i + j) % 3 == 0; }; - case QRMaskPattern.PATTERN100 : - return function(i, j) { return (Math.floor(i / 2) + Math.floor(j / 3) ) % 2 == 0; }; - case QRMaskPattern.PATTERN101 : - return function(i, j) { return (i * j) % 2 + (i * j) % 3 == 0; }; - case QRMaskPattern.PATTERN110 : - return function(i, j) { return ( (i * j) % 2 + (i * j) % 3) % 2 == 0; }; - case QRMaskPattern.PATTERN111 : - return function(i, j) { return ( (i * j) % 3 + (i + j) % 2) % 2 == 0; }; - - default : - throw new Error('bad maskPattern:' + maskPattern); - } - }; - - _this.getErrorCorrectPolynomial = function(errorCorrectLength) { - var a = qrPolynomial([1], 0); - for (var i = 0; i < errorCorrectLength; i += 1) { - a = a.multiply(qrPolynomial([1, QRMath.gexp(i)], 0) ); - } - return a; - }; - - _this.getLengthInBits = function(mode, type) { - - if (1 <= type && type < 10) { - - // 1 - 9 - - switch(mode) { - case QRMode.MODE_NUMBER : return 10; - case QRMode.MODE_ALPHA_NUM : return 9; - case QRMode.MODE_8BIT_BYTE : return 8; - case QRMode.MODE_KANJI : return 8; - default : - throw new Error('mode:' + mode); - } - - } else if (type < 27) { - - // 10 - 26 - - switch(mode) { - case QRMode.MODE_NUMBER : return 12; - case QRMode.MODE_ALPHA_NUM : return 11; - case QRMode.MODE_8BIT_BYTE : return 16; - case QRMode.MODE_KANJI : return 10; - default : - throw new Error('mode:' + mode); - } - - } else if (type < 41) { - - // 27 - 40 - - switch(mode) { - case QRMode.MODE_NUMBER : return 14; - case QRMode.MODE_ALPHA_NUM : return 13; - case QRMode.MODE_8BIT_BYTE : return 16; - case QRMode.MODE_KANJI : return 12; - default : - throw new Error('mode:' + mode); - } - - } else { - throw new Error('type:' + type); - } - }; - - _this.getLostPoint = function(qrcode) { - - var moduleCount = qrcode.getModuleCount(); - - var lostPoint = 0; - - // LEVEL1 - - for (var row = 0; row < moduleCount; row += 1) { - for (var col = 0; col < moduleCount; col += 1) { - - var sameCount = 0; - var dark = qrcode.isDark(row, col); - - for (var r = -1; r <= 1; r += 1) { - - if (row + r < 0 || moduleCount <= row + r) { - continue; - } - - for (var c = -1; c <= 1; c += 1) { - - if (col + c < 0 || moduleCount <= col + c) { - continue; - } - - if (r == 0 && c == 0) { - continue; - } - - if (dark == qrcode.isDark(row + r, col + c) ) { - sameCount += 1; - } - } - } - - if (sameCount > 5) { - lostPoint += (3 + sameCount - 5); - } - } - }; - - // LEVEL2 - - for (var row = 0; row < moduleCount - 1; row += 1) { - for (var col = 0; col < moduleCount - 1; col += 1) { - var count = 0; - if (qrcode.isDark(row, col) ) count += 1; - if (qrcode.isDark(row + 1, col) ) count += 1; - if (qrcode.isDark(row, col + 1) ) count += 1; - if (qrcode.isDark(row + 1, col + 1) ) count += 1; - if (count == 0 || count == 4) { - lostPoint += 3; - } - } - } - - // LEVEL3 - - for (var row = 0; row < moduleCount; row += 1) { - for (var col = 0; col < moduleCount - 6; col += 1) { - if (qrcode.isDark(row, col) - && !qrcode.isDark(row, col + 1) - && qrcode.isDark(row, col + 2) - && qrcode.isDark(row, col + 3) - && qrcode.isDark(row, col + 4) - && !qrcode.isDark(row, col + 5) - && qrcode.isDark(row, col + 6) ) { - lostPoint += 40; - } - } - } - - for (var col = 0; col < moduleCount; col += 1) { - for (var row = 0; row < moduleCount - 6; row += 1) { - if (qrcode.isDark(row, col) - && !qrcode.isDark(row + 1, col) - && qrcode.isDark(row + 2, col) - && qrcode.isDark(row + 3, col) - && qrcode.isDark(row + 4, col) - && !qrcode.isDark(row + 5, col) - && qrcode.isDark(row + 6, col) ) { - lostPoint += 40; - } - } - } - - // LEVEL4 - - var darkCount = 0; - - for (var col = 0; col < moduleCount; col += 1) { - for (var row = 0; row < moduleCount; row += 1) { - if (qrcode.isDark(row, col) ) { - darkCount += 1; - } - } - } - - var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5; - lostPoint += ratio * 10; - - return lostPoint; - }; - - return _this; - }(); - - //--------------------------------------------------------------------- - // QRMath - //--------------------------------------------------------------------- - - var QRMath = function() { - - var EXP_TABLE = new Array(256); - var LOG_TABLE = new Array(256); - - // initialize tables - for (var i = 0; i < 8; i += 1) { - EXP_TABLE[i] = 1 << i; - } - for (var i = 8; i < 256; i += 1) { - EXP_TABLE[i] = EXP_TABLE[i - 4] - ^ EXP_TABLE[i - 5] - ^ EXP_TABLE[i - 6] - ^ EXP_TABLE[i - 8]; - } - for (var i = 0; i < 255; i += 1) { - LOG_TABLE[EXP_TABLE[i] ] = i; - } - - var _this = {}; - - _this.glog = function(n) { - - if (n < 1) { - throw new Error('glog(' + n + ')'); - } - - return LOG_TABLE[n]; - }; - - _this.gexp = function(n) { - - while (n < 0) { - n += 255; - } - - while (n >= 256) { - n -= 255; - } - - return EXP_TABLE[n]; - }; - - return _this; - }(); - - //--------------------------------------------------------------------- - // qrPolynomial - //--------------------------------------------------------------------- - - function qrPolynomial(num, shift) { - - if (typeof num.length == 'undefined') { - throw new Error(num.length + '/' + shift); - } - - var _num = function() { - var offset = 0; - while (offset < num.length && num[offset] == 0) { - offset += 1; - } - var _num = new Array(num.length - offset + shift); - for (var i = 0; i < num.length - offset; i += 1) { - _num[i] = num[i + offset]; - } - return _num; - }(); - - var _this = {}; - - _this.getAt = function(index) { - return _num[index]; - }; - - _this.getLength = function() { - return _num.length; - }; - - _this.multiply = function(e) { - - var num = new Array(_this.getLength() + e.getLength() - 1); - - for (var i = 0; i < _this.getLength(); i += 1) { - for (var j = 0; j < e.getLength(); j += 1) { - num[i + j] ^= QRMath.gexp(QRMath.glog(_this.getAt(i) ) + QRMath.glog(e.getAt(j) ) ); - } - } - - return qrPolynomial(num, 0); - }; - - _this.mod = function(e) { - - if (_this.getLength() - e.getLength() < 0) { - return _this; - } - - var ratio = QRMath.glog(_this.getAt(0) ) - QRMath.glog(e.getAt(0) ); - - var num = new Array(_this.getLength() ); - for (var i = 0; i < _this.getLength(); i += 1) { - num[i] = _this.getAt(i); - } - - for (var i = 0; i < e.getLength(); i += 1) { - num[i] ^= QRMath.gexp(QRMath.glog(e.getAt(i) ) + ratio); - } - - // recursive call - return qrPolynomial(num, 0).mod(e); - }; - - return _this; - }; - - //--------------------------------------------------------------------- - // QRRSBlock - //--------------------------------------------------------------------- - - var QRRSBlock = function() { - - var RS_BLOCK_TABLE = [ - - // L - // M - // Q - // H - - // 1 - [1, 26, 19], - [1, 26, 16], - [1, 26, 13], - [1, 26, 9], - - // 2 - [1, 44, 34], - [1, 44, 28], - [1, 44, 22], - [1, 44, 16], - - // 3 - [1, 70, 55], - [1, 70, 44], - [2, 35, 17], - [2, 35, 13], - - // 4 - [1, 100, 80], - [2, 50, 32], - [2, 50, 24], - [4, 25, 9], - - // 5 - [1, 134, 108], - [2, 67, 43], - [2, 33, 15, 2, 34, 16], - [2, 33, 11, 2, 34, 12], - - // 6 - [2, 86, 68], - [4, 43, 27], - [4, 43, 19], - [4, 43, 15], - - // 7 - [2, 98, 78], - [4, 49, 31], - [2, 32, 14, 4, 33, 15], - [4, 39, 13, 1, 40, 14], - - // 8 - [2, 121, 97], - [2, 60, 38, 2, 61, 39], - [4, 40, 18, 2, 41, 19], - [4, 40, 14, 2, 41, 15], - - // 9 - [2, 146, 116], - [3, 58, 36, 2, 59, 37], - [4, 36, 16, 4, 37, 17], - [4, 36, 12, 4, 37, 13], - - // 10 - [2, 86, 68, 2, 87, 69], - [4, 69, 43, 1, 70, 44], - [6, 43, 19, 2, 44, 20], - [6, 43, 15, 2, 44, 16], - - // 11 - [4, 101, 81], - [1, 80, 50, 4, 81, 51], - [4, 50, 22, 4, 51, 23], - [3, 36, 12, 8, 37, 13], - - // 12 - [2, 116, 92, 2, 117, 93], - [6, 58, 36, 2, 59, 37], - [4, 46, 20, 6, 47, 21], - [7, 42, 14, 4, 43, 15], - - // 13 - [4, 133, 107], - [8, 59, 37, 1, 60, 38], - [8, 44, 20, 4, 45, 21], - [12, 33, 11, 4, 34, 12], - - // 14 - [3, 145, 115, 1, 146, 116], - [4, 64, 40, 5, 65, 41], - [11, 36, 16, 5, 37, 17], - [11, 36, 12, 5, 37, 13], - - // 15 - [5, 109, 87, 1, 110, 88], - [5, 65, 41, 5, 66, 42], - [5, 54, 24, 7, 55, 25], - [11, 36, 12, 7, 37, 13], - - // 16 - [5, 122, 98, 1, 123, 99], - [7, 73, 45, 3, 74, 46], - [15, 43, 19, 2, 44, 20], - [3, 45, 15, 13, 46, 16], - - // 17 - [1, 135, 107, 5, 136, 108], - [10, 74, 46, 1, 75, 47], - [1, 50, 22, 15, 51, 23], - [2, 42, 14, 17, 43, 15], - - // 18 - [5, 150, 120, 1, 151, 121], - [9, 69, 43, 4, 70, 44], - [17, 50, 22, 1, 51, 23], - [2, 42, 14, 19, 43, 15], - - // 19 - [3, 141, 113, 4, 142, 114], - [3, 70, 44, 11, 71, 45], - [17, 47, 21, 4, 48, 22], - [9, 39, 13, 16, 40, 14], - - // 20 - [3, 135, 107, 5, 136, 108], - [3, 67, 41, 13, 68, 42], - [15, 54, 24, 5, 55, 25], - [15, 43, 15, 10, 44, 16], - - // 21 - [4, 144, 116, 4, 145, 117], - [17, 68, 42], - [17, 50, 22, 6, 51, 23], - [19, 46, 16, 6, 47, 17], - - // 22 - [2, 139, 111, 7, 140, 112], - [17, 74, 46], - [7, 54, 24, 16, 55, 25], - [34, 37, 13], - - // 23 - [4, 151, 121, 5, 152, 122], - [4, 75, 47, 14, 76, 48], - [11, 54, 24, 14, 55, 25], - [16, 45, 15, 14, 46, 16], - - // 24 - [6, 147, 117, 4, 148, 118], - [6, 73, 45, 14, 74, 46], - [11, 54, 24, 16, 55, 25], - [30, 46, 16, 2, 47, 17], - - // 25 - [8, 132, 106, 4, 133, 107], - [8, 75, 47, 13, 76, 48], - [7, 54, 24, 22, 55, 25], - [22, 45, 15, 13, 46, 16], - - // 26 - [10, 142, 114, 2, 143, 115], - [19, 74, 46, 4, 75, 47], - [28, 50, 22, 6, 51, 23], - [33, 46, 16, 4, 47, 17], - - // 27 - [8, 152, 122, 4, 153, 123], - [22, 73, 45, 3, 74, 46], - [8, 53, 23, 26, 54, 24], - [12, 45, 15, 28, 46, 16], - - // 28 - [3, 147, 117, 10, 148, 118], - [3, 73, 45, 23, 74, 46], - [4, 54, 24, 31, 55, 25], - [11, 45, 15, 31, 46, 16], - - // 29 - [7, 146, 116, 7, 147, 117], - [21, 73, 45, 7, 74, 46], - [1, 53, 23, 37, 54, 24], - [19, 45, 15, 26, 46, 16], - - // 30 - [5, 145, 115, 10, 146, 116], - [19, 75, 47, 10, 76, 48], - [15, 54, 24, 25, 55, 25], - [23, 45, 15, 25, 46, 16], - - // 31 - [13, 145, 115, 3, 146, 116], - [2, 74, 46, 29, 75, 47], - [42, 54, 24, 1, 55, 25], - [23, 45, 15, 28, 46, 16], - - // 32 - [17, 145, 115], - [10, 74, 46, 23, 75, 47], - [10, 54, 24, 35, 55, 25], - [19, 45, 15, 35, 46, 16], - - // 33 - [17, 145, 115, 1, 146, 116], - [14, 74, 46, 21, 75, 47], - [29, 54, 24, 19, 55, 25], - [11, 45, 15, 46, 46, 16], - - // 34 - [13, 145, 115, 6, 146, 116], - [14, 74, 46, 23, 75, 47], - [44, 54, 24, 7, 55, 25], - [59, 46, 16, 1, 47, 17], - - // 35 - [12, 151, 121, 7, 152, 122], - [12, 75, 47, 26, 76, 48], - [39, 54, 24, 14, 55, 25], - [22, 45, 15, 41, 46, 16], - - // 36 - [6, 151, 121, 14, 152, 122], - [6, 75, 47, 34, 76, 48], - [46, 54, 24, 10, 55, 25], - [2, 45, 15, 64, 46, 16], - - // 37 - [17, 152, 122, 4, 153, 123], - [29, 74, 46, 14, 75, 47], - [49, 54, 24, 10, 55, 25], - [24, 45, 15, 46, 46, 16], - - // 38 - [4, 152, 122, 18, 153, 123], - [13, 74, 46, 32, 75, 47], - [48, 54, 24, 14, 55, 25], - [42, 45, 15, 32, 46, 16], - - // 39 - [20, 147, 117, 4, 148, 118], - [40, 75, 47, 7, 76, 48], - [43, 54, 24, 22, 55, 25], - [10, 45, 15, 67, 46, 16], - - // 40 - [19, 148, 118, 6, 149, 119], - [18, 75, 47, 31, 76, 48], - [34, 54, 24, 34, 55, 25], - [20, 45, 15, 61, 46, 16] - ]; - - var qrRSBlock = function(totalCount, dataCount) { - var _this = {}; - _this.totalCount = totalCount; - _this.dataCount = dataCount; - return _this; - }; - - var _this = {}; - - var getRsBlockTable = function(typeNumber, errorCorrectLevel) { - - switch(errorCorrectLevel) { - case QRErrorCorrectLevel.L : - return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0]; - case QRErrorCorrectLevel.M : - return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1]; - case QRErrorCorrectLevel.Q : - return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2]; - case QRErrorCorrectLevel.H : - return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3]; - default : - return undefined; - } - }; - - _this.getRSBlocks = function(typeNumber, errorCorrectLevel) { - - var rsBlock = getRsBlockTable(typeNumber, errorCorrectLevel); - - if (typeof rsBlock == 'undefined') { - throw new Error('bad rs block @ typeNumber:' + typeNumber + - '/errorCorrectLevel:' + errorCorrectLevel); - } - - var length = rsBlock.length / 3; - - var list = new Array(); - - for (var i = 0; i < length; i += 1) { - - var count = rsBlock[i * 3 + 0]; - var totalCount = rsBlock[i * 3 + 1]; - var dataCount = rsBlock[i * 3 + 2]; - - for (var j = 0; j < count; j += 1) { - list.push(qrRSBlock(totalCount, dataCount) ); - } - } - - return list; - }; - - return _this; - }(); - - //--------------------------------------------------------------------- - // qrBitBuffer - //--------------------------------------------------------------------- - - var qrBitBuffer = function() { - - var _buffer = new Array(); - var _length = 0; - - var _this = {}; - - _this.getBuffer = function() { - return _buffer; - }; - - _this.getAt = function(index) { - var bufIndex = Math.floor(index / 8); - return ( (_buffer[bufIndex] >>> (7 - index % 8) ) & 1) == 1; - }; - - _this.put = function(num, length) { - for (var i = 0; i < length; i += 1) { - _this.putBit( ( (num >>> (length - i - 1) ) & 1) == 1); - } - }; - - _this.getLengthInBits = function() { - return _length; - }; - - _this.putBit = function(bit) { - - var bufIndex = Math.floor(_length / 8); - if (_buffer.length <= bufIndex) { - _buffer.push(0); - } - - if (bit) { - _buffer[bufIndex] |= (0x80 >>> (_length % 8) ); - } - - _length += 1; - }; - - return _this; - }; - - //--------------------------------------------------------------------- - // qr8BitByte - //--------------------------------------------------------------------- - - var qr8BitByte = function(data) { - - var _mode = QRMode.MODE_8BIT_BYTE; - var _data = data; - var _bytes = qrcode.stringToBytes(data); - - var _this = {}; - - _this.getMode = function() { - return _mode; - }; - - _this.getLength = function(buffer) { - return _bytes.length; - }; - - _this.write = function(buffer) { - for (var i = 0; i < _bytes.length; i += 1) { - buffer.put(_bytes[i], 8); - } - }; - - return _this; - }; - - //===================================================================== - // GIF Support etc. - // - - //--------------------------------------------------------------------- - // byteArrayOutputStream - //--------------------------------------------------------------------- - - var byteArrayOutputStream = function() { - - var _bytes = new Array(); - - var _this = {}; - - _this.writeByte = function(b) { - _bytes.push(b & 0xff); - }; - - _this.writeShort = function(i) { - _this.writeByte(i); - _this.writeByte(i >>> 8); - }; - - _this.writeBytes = function(b, off, len) { - off = off || 0; - len = len || b.length; - for (var i = 0; i < len; i += 1) { - _this.writeByte(b[i + off]); - } - }; - - _this.writeString = function(s) { - for (var i = 0; i < s.length; i += 1) { - _this.writeByte(s.charCodeAt(i) ); - } - }; - - _this.toByteArray = function() { - return _bytes; - }; - - _this.toString = function() { - var s = ''; - s += '['; - for (var i = 0; i < _bytes.length; i += 1) { - if (i > 0) { - s += ','; - } - s += _bytes[i]; - } - s += ']'; - return s; - }; - - return _this; - }; - - //--------------------------------------------------------------------- - // base64EncodeOutputStream - //--------------------------------------------------------------------- - - var base64EncodeOutputStream = function() { - - var _buffer = 0; - var _buflen = 0; - var _length = 0; - var _base64 = ''; - - var _this = {}; - - var writeEncoded = function(b) { - _base64 += String.fromCharCode(encode(b & 0x3f) ); - }; - - var encode = function(n) { - if (n < 0) { - // error. - } else if (n < 26) { - return 0x41 + n; - } else if (n < 52) { - return 0x61 + (n - 26); - } else if (n < 62) { - return 0x30 + (n - 52); - } else if (n == 62) { - return 0x2b; - } else if (n == 63) { - return 0x2f; - } - throw new Error('n:' + n); - }; - - _this.writeByte = function(n) { - - _buffer = (_buffer << 8) | (n & 0xff); - _buflen += 8; - _length += 1; - - while (_buflen >= 6) { - writeEncoded(_buffer >>> (_buflen - 6) ); - _buflen -= 6; - } - }; - - _this.flush = function() { - - if (_buflen > 0) { - writeEncoded(_buffer << (6 - _buflen) ); - _buffer = 0; - _buflen = 0; - } - - if (_length % 3 != 0) { - // padding - var padlen = 3 - _length % 3; - for (var i = 0; i < padlen; i += 1) { - _base64 += '='; - } - } - }; - - _this.toString = function() { - return _base64; - }; - - return _this; - }; - - //--------------------------------------------------------------------- - // base64DecodeInputStream - //--------------------------------------------------------------------- - - var base64DecodeInputStream = function(str) { - - var _str = str; - var _pos = 0; - var _buffer = 0; - var _buflen = 0; - - var _this = {}; - - _this.read = function() { - - while (_buflen < 8) { - - if (_pos >= _str.length) { - if (_buflen == 0) { - return -1; - } - throw new Error('unexpected end of file./' + _buflen); - } - - var c = _str.charAt(_pos); - _pos += 1; - - if (c == '=') { - _buflen = 0; - return -1; - } else if (c.match(/^\s$/) ) { - // ignore if whitespace. - continue; - } - - _buffer = (_buffer << 6) | decode(c.charCodeAt(0) ); - _buflen += 6; - } - - var n = (_buffer >>> (_buflen - 8) ) & 0xff; - _buflen -= 8; - return n; - }; - - var decode = function(c) { - if (0x41 <= c && c <= 0x5a) { - return c - 0x41; - } else if (0x61 <= c && c <= 0x7a) { - return c - 0x61 + 26; - } else if (0x30 <= c && c <= 0x39) { - return c - 0x30 + 52; - } else if (c == 0x2b) { - return 62; - } else if (c == 0x2f) { - return 63; - } else { - throw new Error('c:' + c); - } - }; - - return _this; - }; - - //--------------------------------------------------------------------- - // gifImage (B/W) - //--------------------------------------------------------------------- - - var gifImage = function(width, height) { - - var _width = width; - var _height = height; - var _data = new Array(width * height); - - var _this = {}; - - _this.setPixel = function(x, y, pixel) { - _data[y * _width + x] = pixel; - }; - - _this.write = function(out) { - - //--------------------------------- - // GIF Signature - - out.writeString('GIF87a'); - - //--------------------------------- - // Screen Descriptor - - out.writeShort(_width); - out.writeShort(_height); - - out.writeByte(0x80); // 2bit - out.writeByte(0); - out.writeByte(0); - - //--------------------------------- - // Global Color Map - - // black - out.writeByte(0x00); - out.writeByte(0x00); - out.writeByte(0x00); - - // white - out.writeByte(0xff); - out.writeByte(0xff); - out.writeByte(0xff); - - //--------------------------------- - // Image Descriptor - - out.writeString(','); - out.writeShort(0); - out.writeShort(0); - out.writeShort(_width); - out.writeShort(_height); - out.writeByte(0); - - //--------------------------------- - // Local Color Map - - //--------------------------------- - // Raster Data - - var lzwMinCodeSize = 2; - var raster = getLZWRaster(lzwMinCodeSize); - - out.writeByte(lzwMinCodeSize); - - var offset = 0; - - while (raster.length - offset > 255) { - out.writeByte(255); - out.writeBytes(raster, offset, 255); - offset += 255; - } - - out.writeByte(raster.length - offset); - out.writeBytes(raster, offset, raster.length - offset); - out.writeByte(0x00); - - //--------------------------------- - // GIF Terminator - out.writeString(';'); - }; - - var bitOutputStream = function(out) { - - var _out = out; - var _bitLength = 0; - var _bitBuffer = 0; - - var _this = {}; - - _this.write = function(data, length) { - - if ( (data >>> length) != 0) { - throw new Error('length over'); - } - - while (_bitLength + length >= 8) { - _out.writeByte(0xff & ( (data << _bitLength) | _bitBuffer) ); - length -= (8 - _bitLength); - data >>>= (8 - _bitLength); - _bitBuffer = 0; - _bitLength = 0; - } - - _bitBuffer = (data << _bitLength) | _bitBuffer; - _bitLength = _bitLength + length; - }; - - _this.flush = function() { - if (_bitLength > 0) { - _out.writeByte(_bitBuffer); - } - }; - - return _this; - }; - - var getLZWRaster = function(lzwMinCodeSize) { - - var clearCode = 1 << lzwMinCodeSize; - var endCode = (1 << lzwMinCodeSize) + 1; - var bitLength = lzwMinCodeSize + 1; - - // Setup LZWTable - var table = lzwTable(); - - for (var i = 0; i < clearCode; i += 1) { - table.add(String.fromCharCode(i) ); - } - table.add(String.fromCharCode(clearCode) ); - table.add(String.fromCharCode(endCode) ); - - var byteOut = byteArrayOutputStream(); - var bitOut = bitOutputStream(byteOut); - - // clear code - bitOut.write(clearCode, bitLength); - - var dataIndex = 0; - - var s = String.fromCharCode(_data[dataIndex]); - dataIndex += 1; - - while (dataIndex < _data.length) { - - var c = String.fromCharCode(_data[dataIndex]); - dataIndex += 1; - - if (table.contains(s + c) ) { - - s = s + c; - - } else { - - bitOut.write(table.indexOf(s), bitLength); - - if (table.size() < 0xfff) { - - if (table.size() == (1 << bitLength) ) { - bitLength += 1; - } - - table.add(s + c); - } - - s = c; - } - } - - bitOut.write(table.indexOf(s), bitLength); - - // end code - bitOut.write(endCode, bitLength); - - bitOut.flush(); - - return byteOut.toByteArray(); - }; - - var lzwTable = function() { - - var _map = {}; - var _size = 0; - - var _this = {}; - - _this.add = function(key) { - if (_this.contains(key) ) { - throw new Error('dup key:' + key); - } - _map[key] = _size; - _size += 1; - }; - - _this.size = function() { - return _size; - }; - - _this.indexOf = function(key) { - return _map[key]; - }; - - _this.contains = function(key) { - return typeof _map[key] != 'undefined'; - }; - - return _this; - }; - - return _this; - }; - - var createImgTag = function(width, height, getPixel, alt) { - - var gif = gifImage(width, height); - for (var y = 0; y < height; y += 1) { - for (var x = 0; x < width; x += 1) { - gif.setPixel(x, y, getPixel(x, y) ); - } - } - - var b = byteArrayOutputStream(); - gif.write(b); - - var base64 = base64EncodeOutputStream(); - var bytes = b.toByteArray(); - for (var i = 0; i < bytes.length; i += 1) { - base64.writeByte(bytes[i]); - } - base64.flush(); - - var img = ''; - img += '= 7) { + setupTypeNumber(test); + } + + if (_dataCache == null) { + _dataCache = createData(_typeNumber, _errorCorrectLevel, _dataList); + } + + mapData(_dataCache, maskPattern); + }; + + var setupPositionProbePattern = function(row, col) { + + for (var r = -1; r <= 7; r += 1) { + + if (row + r <= -1 || _moduleCount <= row + r) continue; + + for (var c = -1; c <= 7; c += 1) { + + if (col + c <= -1 || _moduleCount <= col + c) continue; + + if ( (0 <= r && r <= 6 && (c == 0 || c == 6) ) + || (0 <= c && c <= 6 && (r == 0 || r == 6) ) + || (2 <= r && r <= 4 && 2 <= c && c <= 4) ) { + _modules[row + r][col + c] = true; + } else { + _modules[row + r][col + c] = false; + } + } + } + }; + + var getBestMaskPattern = function() { + + var minLostPoint = 0; + var pattern = 0; + + for (var i = 0; i < 8; i += 1) { + + makeImpl(true, i); + + var lostPoint = QRUtil.getLostPoint(_this); + + if (i == 0 || minLostPoint > lostPoint) { + minLostPoint = lostPoint; + pattern = i; + } + } + + return pattern; + }; + + var setupTimingPattern = function() { + + for (var r = 8; r < _moduleCount - 8; r += 1) { + if (_modules[r][6] != null) { + continue; + } + _modules[r][6] = (r % 2 == 0); + } + + for (var c = 8; c < _moduleCount - 8; c += 1) { + if (_modules[6][c] != null) { + continue; + } + _modules[6][c] = (c % 2 == 0); + } + }; + + var setupPositionAdjustPattern = function() { + + var pos = QRUtil.getPatternPosition(_typeNumber); + + for (var i = 0; i < pos.length; i += 1) { + + for (var j = 0; j < pos.length; j += 1) { + + var row = pos[i]; + var col = pos[j]; + + if (_modules[row][col] != null) { + continue; + } + + for (var r = -2; r <= 2; r += 1) { + + for (var c = -2; c <= 2; c += 1) { + + if (r == -2 || r == 2 || c == -2 || c == 2 + || (r == 0 && c == 0) ) { + _modules[row + r][col + c] = true; + } else { + _modules[row + r][col + c] = false; + } + } + } + } + } + }; + + var setupTypeNumber = function(test) { + + var bits = QRUtil.getBCHTypeNumber(_typeNumber); + + for (var i = 0; i < 18; i += 1) { + var mod = (!test && ( (bits >> i) & 1) == 1); + _modules[Math.floor(i / 3)][i % 3 + _moduleCount - 8 - 3] = mod; + } + + for (var i = 0; i < 18; i += 1) { + var mod = (!test && ( (bits >> i) & 1) == 1); + _modules[i % 3 + _moduleCount - 8 - 3][Math.floor(i / 3)] = mod; + } + }; + + var setupTypeInfo = function(test, maskPattern) { + + var data = (_errorCorrectLevel << 3) | maskPattern; + var bits = QRUtil.getBCHTypeInfo(data); + + // vertical + for (var i = 0; i < 15; i += 1) { + + var mod = (!test && ( (bits >> i) & 1) == 1); + + if (i < 6) { + _modules[i][8] = mod; + } else if (i < 8) { + _modules[i + 1][8] = mod; + } else { + _modules[_moduleCount - 15 + i][8] = mod; + } + } + + // horizontal + for (var i = 0; i < 15; i += 1) { + + var mod = (!test && ( (bits >> i) & 1) == 1); + + if (i < 8) { + _modules[8][_moduleCount - i - 1] = mod; + } else if (i < 9) { + _modules[8][15 - i - 1 + 1] = mod; + } else { + _modules[8][15 - i - 1] = mod; + } + } + + // fixed module + _modules[_moduleCount - 8][8] = (!test); + }; + + var mapData = function(data, maskPattern) { + + var inc = -1; + var row = _moduleCount - 1; + var bitIndex = 7; + var byteIndex = 0; + var maskFunc = QRUtil.getMaskFunction(maskPattern); + + for (var col = _moduleCount - 1; col > 0; col -= 2) { + + if (col == 6) col -= 1; + + while (true) { + + for (var c = 0; c < 2; c += 1) { + + if (_modules[row][col - c] == null) { + + var dark = false; + + if (byteIndex < data.length) { + dark = ( ( (data[byteIndex] >>> bitIndex) & 1) == 1); + } + + var mask = maskFunc(row, col - c); + + if (mask) { + dark = !dark; + } + + _modules[row][col - c] = dark; + bitIndex -= 1; + + if (bitIndex == -1) { + byteIndex += 1; + bitIndex = 7; + } + } + } + + row += inc; + + if (row < 0 || _moduleCount <= row) { + row -= inc; + inc = -inc; + break; + } + } + } + }; + + var createBytes = function(buffer, rsBlocks) { + + var offset = 0; + + var maxDcCount = 0; + var maxEcCount = 0; + + var dcdata = new Array(rsBlocks.length); + var ecdata = new Array(rsBlocks.length); + + for (var r = 0; r < rsBlocks.length; r += 1) { + + var dcCount = rsBlocks[r].dataCount; + var ecCount = rsBlocks[r].totalCount - dcCount; + + maxDcCount = Math.max(maxDcCount, dcCount); + maxEcCount = Math.max(maxEcCount, ecCount); + + dcdata[r] = new Array(dcCount); + + for (var i = 0; i < dcdata[r].length; i += 1) { + dcdata[r][i] = 0xff & buffer.getBuffer()[i + offset]; + } + offset += dcCount; + + var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount); + var rawPoly = qrPolynomial(dcdata[r], rsPoly.getLength() - 1); + + var modPoly = rawPoly.mod(rsPoly); + ecdata[r] = new Array(rsPoly.getLength() - 1); + for (var i = 0; i < ecdata[r].length; i += 1) { + var modIndex = i + modPoly.getLength() - ecdata[r].length; + ecdata[r][i] = (modIndex >= 0)? modPoly.getAt(modIndex) : 0; + } + } + + var totalCodeCount = 0; + for (var i = 0; i < rsBlocks.length; i += 1) { + totalCodeCount += rsBlocks[i].totalCount; + } + + var data = new Array(totalCodeCount); + var index = 0; + + for (var i = 0; i < maxDcCount; i += 1) { + for (var r = 0; r < rsBlocks.length; r += 1) { + if (i < dcdata[r].length) { + data[index] = dcdata[r][i]; + index += 1; + } + } + } + + for (var i = 0; i < maxEcCount; i += 1) { + for (var r = 0; r < rsBlocks.length; r += 1) { + if (i < ecdata[r].length) { + data[index] = ecdata[r][i]; + index += 1; + } + } + } + + return data; + }; + + var createData = function(typeNumber, errorCorrectLevel, dataList) { + + var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel); + + var buffer = qrBitBuffer(); + + for (var i = 0; i < dataList.length; i += 1) { + var data = dataList[i]; + buffer.put(data.getMode(), 4); + buffer.put(data.getLength(), QRUtil.getLengthInBits(data.getMode(), typeNumber) ); + data.write(buffer); + } + + // calc num max data. + var totalDataCount = 0; + for (var i = 0; i < rsBlocks.length; i += 1) { + totalDataCount += rsBlocks[i].dataCount; + } + + if (buffer.getLengthInBits() > totalDataCount * 8) { + throw new Error('code length overflow. (' + + buffer.getLengthInBits() + + '>' + + totalDataCount * 8 + + ')'); + } + + // end code + if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) { + buffer.put(0, 4); + } + + // padding + while (buffer.getLengthInBits() % 8 != 0) { + buffer.putBit(false); + } + + // padding + while (true) { + + if (buffer.getLengthInBits() >= totalDataCount * 8) { + break; + } + buffer.put(PAD0, 8); + + if (buffer.getLengthInBits() >= totalDataCount * 8) { + break; + } + buffer.put(PAD1, 8); + } + + return createBytes(buffer, rsBlocks); + }; + + _this.addData = function(data) { + var newData = qr8BitByte(data); + _dataList.push(newData); + _dataCache = null; + }; + + _this.isDark = function(row, col) { + if (row < 0 || _moduleCount <= row || col < 0 || _moduleCount <= col) { + throw new Error(row + ',' + col); + } + return _modules[row][col]; + }; + + _this.getModuleCount = function() { + return _moduleCount; + }; + + _this.make = function() { + if (_typeNumber < 1 ) { + var typeNumber = 1; + for (typeNumber = 1; typeNumber < 40; typeNumber++) { + var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, _errorCorrectLevel); + var buffer = new qrBitBuffer(); + var totalDataCount = 0; + for (var i = 0; i < rsBlocks.length; i++) { + totalDataCount += rsBlocks[i].dataCount; + } + for (var i = 0; i < _dataList.length; i++) { + var data = _dataList[i]; + buffer.put(data.getMode(), 4); + buffer.put(data.getLength(), QRUtil.getLengthInBits(data.getMode(), typeNumber) ); + data.write(buffer); + } + if (buffer.getLengthInBits() <= totalDataCount * 8) + break; + } + _typeNumber = typeNumber; + } + makeImpl(false, getBestMaskPattern() ); + }; + + _this.createImage = function(cellSize, margin) { + cellSize = cellSize || 2; + margin = (typeof margin == 'undefined')? cellSize * 4 : margin; + + var size = _this.getModuleCount() * cellSize + margin * 2; + var min = margin; + var max = size - margin; + + var y, x, r, p; + var gif = gifImage(size, size); + for (y = 0; y < size; y += 1) { + r = Math.floor( (y - min) / cellSize); + for (x = 0; x < size; x += 1) { + p = 1; + + if (min <= x && x < max && min <= y && y < max && _this.isDark(r, Math.floor( (x - min) / cellSize))) { + p = 0; + } + + gif.setPixel(x, y, p); + } + } + + var b = byteArrayOutputStream(); + gif.write(b); + + return { + bytes: b, + width: size, + height: size + }; + }; + + _this.createTableTag = function(cellSize, margin) { + + cellSize = cellSize || 2; + margin = (typeof margin == 'undefined')? cellSize * 4 : margin; + + var qrHtml = ''; + + qrHtml += ''; + qrHtml += ''; + + for (var r = 0; r < _this.getModuleCount(); r += 1) { + + qrHtml += ''; + + for (var c = 0; c < _this.getModuleCount(); c += 1) { + qrHtml += ''; + } + + qrHtml += ''; + qrHtml += '
'; + } + + qrHtml += '
'; + + return qrHtml; + }; + + _this.createImgTag = function(cellSize, margin, alt) { + var data = _this.createImage(cellSize, margin); + + var base64 = base64EncodeOutputStream(); + var bytes = data.bytes.toByteArray(); + for (var i = 0; i < bytes.length; i += 1) { + base64.writeByte(bytes[i]); + } + base64.flush(); + + var img = ''; + img += '>> 8); + bytes.push(b & 0xff); + } + } else { + bytes.push(unknownChar); + } + } + } + return bytes; + }; + }; + + //--------------------------------------------------------------------- + // QRMode + //--------------------------------------------------------------------- + + var QRMode = { + MODE_NUMBER : 1 << 0, + MODE_ALPHA_NUM : 1 << 1, + MODE_8BIT_BYTE : 1 << 2, + MODE_KANJI : 1 << 3 + }; + + //--------------------------------------------------------------------- + // QRErrorCorrectLevel + //--------------------------------------------------------------------- + + var QRErrorCorrectLevel = { + L : 1, + M : 0, + Q : 3, + H : 2 + }; + + //--------------------------------------------------------------------- + // QRMaskPattern + //--------------------------------------------------------------------- + + var QRMaskPattern = { + PATTERN000 : 0, + PATTERN001 : 1, + PATTERN010 : 2, + PATTERN011 : 3, + PATTERN100 : 4, + PATTERN101 : 5, + PATTERN110 : 6, + PATTERN111 : 7 + }; + + //--------------------------------------------------------------------- + // QRUtil + //--------------------------------------------------------------------- + + var QRUtil = function() { + + var PATTERN_POSITION_TABLE = [ + [], + [6, 18], + [6, 22], + [6, 26], + [6, 30], + [6, 34], + [6, 22, 38], + [6, 24, 42], + [6, 26, 46], + [6, 28, 50], + [6, 30, 54], + [6, 32, 58], + [6, 34, 62], + [6, 26, 46, 66], + [6, 26, 48, 70], + [6, 26, 50, 74], + [6, 30, 54, 78], + [6, 30, 56, 82], + [6, 30, 58, 86], + [6, 34, 62, 90], + [6, 28, 50, 72, 94], + [6, 26, 50, 74, 98], + [6, 30, 54, 78, 102], + [6, 28, 54, 80, 106], + [6, 32, 58, 84, 110], + [6, 30, 58, 86, 114], + [6, 34, 62, 90, 118], + [6, 26, 50, 74, 98, 122], + [6, 30, 54, 78, 102, 126], + [6, 26, 52, 78, 104, 130], + [6, 30, 56, 82, 108, 134], + [6, 34, 60, 86, 112, 138], + [6, 30, 58, 86, 114, 142], + [6, 34, 62, 90, 118, 146], + [6, 30, 54, 78, 102, 126, 150], + [6, 24, 50, 76, 102, 128, 154], + [6, 28, 54, 80, 106, 132, 158], + [6, 32, 58, 84, 110, 136, 162], + [6, 26, 54, 82, 110, 138, 166], + [6, 30, 58, 86, 114, 142, 170] + ]; + var G15 = (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0); + var G18 = (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0); + var G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1); + + var _this = {}; + + var getBCHDigit = function(data) { + var digit = 0; + while (data != 0) { + digit += 1; + data >>>= 1; + } + return digit; + }; + + _this.getBCHTypeInfo = function(data) { + var d = data << 10; + while (getBCHDigit(d) - getBCHDigit(G15) >= 0) { + d ^= (G15 << (getBCHDigit(d) - getBCHDigit(G15) ) ); + } + return ( (data << 10) | d) ^ G15_MASK; + }; + + _this.getBCHTypeNumber = function(data) { + var d = data << 12; + while (getBCHDigit(d) - getBCHDigit(G18) >= 0) { + d ^= (G18 << (getBCHDigit(d) - getBCHDigit(G18) ) ); + } + return (data << 12) | d; + }; + + _this.getPatternPosition = function(typeNumber) { + return PATTERN_POSITION_TABLE[typeNumber - 1]; + }; + + _this.getMaskFunction = function(maskPattern) { + + switch (maskPattern) { + + case QRMaskPattern.PATTERN000 : + return function(i, j) { return (i + j) % 2 == 0; }; + case QRMaskPattern.PATTERN001 : + return function(i, j) { return i % 2 == 0; }; + case QRMaskPattern.PATTERN010 : + return function(i, j) { return j % 3 == 0; }; + case QRMaskPattern.PATTERN011 : + return function(i, j) { return (i + j) % 3 == 0; }; + case QRMaskPattern.PATTERN100 : + return function(i, j) { return (Math.floor(i / 2) + Math.floor(j / 3) ) % 2 == 0; }; + case QRMaskPattern.PATTERN101 : + return function(i, j) { return (i * j) % 2 + (i * j) % 3 == 0; }; + case QRMaskPattern.PATTERN110 : + return function(i, j) { return ( (i * j) % 2 + (i * j) % 3) % 2 == 0; }; + case QRMaskPattern.PATTERN111 : + return function(i, j) { return ( (i * j) % 3 + (i + j) % 2) % 2 == 0; }; + + default : + throw new Error('bad maskPattern:' + maskPattern); + } + }; + + _this.getErrorCorrectPolynomial = function(errorCorrectLength) { + var a = qrPolynomial([1], 0); + for (var i = 0; i < errorCorrectLength; i += 1) { + a = a.multiply(qrPolynomial([1, QRMath.gexp(i)], 0) ); + } + return a; + }; + + _this.getLengthInBits = function(mode, type) { + + if (1 <= type && type < 10) { + + // 1 - 9 + + switch(mode) { + case QRMode.MODE_NUMBER : return 10; + case QRMode.MODE_ALPHA_NUM : return 9; + case QRMode.MODE_8BIT_BYTE : return 8; + case QRMode.MODE_KANJI : return 8; + default : + throw new Error('mode:' + mode); + } + + } else if (type < 27) { + + // 10 - 26 + + switch(mode) { + case QRMode.MODE_NUMBER : return 12; + case QRMode.MODE_ALPHA_NUM : return 11; + case QRMode.MODE_8BIT_BYTE : return 16; + case QRMode.MODE_KANJI : return 10; + default : + throw new Error('mode:' + mode); + } + + } else if (type < 41) { + + // 27 - 40 + + switch(mode) { + case QRMode.MODE_NUMBER : return 14; + case QRMode.MODE_ALPHA_NUM : return 13; + case QRMode.MODE_8BIT_BYTE : return 16; + case QRMode.MODE_KANJI : return 12; + default : + throw new Error('mode:' + mode); + } + + } else { + throw new Error('type:' + type); + } + }; + + _this.getLostPoint = function(qrcode) { + + var moduleCount = qrcode.getModuleCount(); + + var lostPoint = 0; + + // LEVEL1 + + for (var row = 0; row < moduleCount; row += 1) { + for (var col = 0; col < moduleCount; col += 1) { + + var sameCount = 0; + var dark = qrcode.isDark(row, col); + + for (var r = -1; r <= 1; r += 1) { + + if (row + r < 0 || moduleCount <= row + r) { + continue; + } + + for (var c = -1; c <= 1; c += 1) { + + if (col + c < 0 || moduleCount <= col + c) { + continue; + } + + if (r == 0 && c == 0) { + continue; + } + + if (dark == qrcode.isDark(row + r, col + c) ) { + sameCount += 1; + } + } + } + + if (sameCount > 5) { + lostPoint += (3 + sameCount - 5); + } + } + }; + + // LEVEL2 + + for (var row = 0; row < moduleCount - 1; row += 1) { + for (var col = 0; col < moduleCount - 1; col += 1) { + var count = 0; + if (qrcode.isDark(row, col) ) count += 1; + if (qrcode.isDark(row + 1, col) ) count += 1; + if (qrcode.isDark(row, col + 1) ) count += 1; + if (qrcode.isDark(row + 1, col + 1) ) count += 1; + if (count == 0 || count == 4) { + lostPoint += 3; + } + } + } + + // LEVEL3 + + for (var row = 0; row < moduleCount; row += 1) { + for (var col = 0; col < moduleCount - 6; col += 1) { + if (qrcode.isDark(row, col) + && !qrcode.isDark(row, col + 1) + && qrcode.isDark(row, col + 2) + && qrcode.isDark(row, col + 3) + && qrcode.isDark(row, col + 4) + && !qrcode.isDark(row, col + 5) + && qrcode.isDark(row, col + 6) ) { + lostPoint += 40; + } + } + } + + for (var col = 0; col < moduleCount; col += 1) { + for (var row = 0; row < moduleCount - 6; row += 1) { + if (qrcode.isDark(row, col) + && !qrcode.isDark(row + 1, col) + && qrcode.isDark(row + 2, col) + && qrcode.isDark(row + 3, col) + && qrcode.isDark(row + 4, col) + && !qrcode.isDark(row + 5, col) + && qrcode.isDark(row + 6, col) ) { + lostPoint += 40; + } + } + } + + // LEVEL4 + + var darkCount = 0; + + for (var col = 0; col < moduleCount; col += 1) { + for (var row = 0; row < moduleCount; row += 1) { + if (qrcode.isDark(row, col) ) { + darkCount += 1; + } + } + } + + var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5; + lostPoint += ratio * 10; + + return lostPoint; + }; + + return _this; + }(); + + //--------------------------------------------------------------------- + // QRMath + //--------------------------------------------------------------------- + + var QRMath = function() { + + var EXP_TABLE = new Array(256); + var LOG_TABLE = new Array(256); + + // initialize tables + for (var i = 0; i < 8; i += 1) { + EXP_TABLE[i] = 1 << i; + } + for (var i = 8; i < 256; i += 1) { + EXP_TABLE[i] = EXP_TABLE[i - 4] + ^ EXP_TABLE[i - 5] + ^ EXP_TABLE[i - 6] + ^ EXP_TABLE[i - 8]; + } + for (var i = 0; i < 255; i += 1) { + LOG_TABLE[EXP_TABLE[i] ] = i; + } + + var _this = {}; + + _this.glog = function(n) { + + if (n < 1) { + throw new Error('glog(' + n + ')'); + } + + return LOG_TABLE[n]; + }; + + _this.gexp = function(n) { + + while (n < 0) { + n += 255; + } + + while (n >= 256) { + n -= 255; + } + + return EXP_TABLE[n]; + }; + + return _this; + }(); + + //--------------------------------------------------------------------- + // qrPolynomial + //--------------------------------------------------------------------- + + function qrPolynomial(num, shift) { + + if (typeof num.length == 'undefined') { + throw new Error(num.length + '/' + shift); + } + + var _num = function() { + var offset = 0; + while (offset < num.length && num[offset] == 0) { + offset += 1; + } + var _num = new Array(num.length - offset + shift); + for (var i = 0; i < num.length - offset; i += 1) { + _num[i] = num[i + offset]; + } + return _num; + }(); + + var _this = {}; + + _this.getAt = function(index) { + return _num[index]; + }; + + _this.getLength = function() { + return _num.length; + }; + + _this.multiply = function(e) { + + var num = new Array(_this.getLength() + e.getLength() - 1); + + for (var i = 0; i < _this.getLength(); i += 1) { + for (var j = 0; j < e.getLength(); j += 1) { + num[i + j] ^= QRMath.gexp(QRMath.glog(_this.getAt(i) ) + QRMath.glog(e.getAt(j) ) ); + } + } + + return qrPolynomial(num, 0); + }; + + _this.mod = function(e) { + + if (_this.getLength() - e.getLength() < 0) { + return _this; + } + + var ratio = QRMath.glog(_this.getAt(0) ) - QRMath.glog(e.getAt(0) ); + + var num = new Array(_this.getLength() ); + for (var i = 0; i < _this.getLength(); i += 1) { + num[i] = _this.getAt(i); + } + + for (var i = 0; i < e.getLength(); i += 1) { + num[i] ^= QRMath.gexp(QRMath.glog(e.getAt(i) ) + ratio); + } + + // recursive call + return qrPolynomial(num, 0).mod(e); + }; + + return _this; + }; + + //--------------------------------------------------------------------- + // QRRSBlock + //--------------------------------------------------------------------- + + var QRRSBlock = function() { + + var RS_BLOCK_TABLE = [ + + // L + // M + // Q + // H + + // 1 + [1, 26, 19], + [1, 26, 16], + [1, 26, 13], + [1, 26, 9], + + // 2 + [1, 44, 34], + [1, 44, 28], + [1, 44, 22], + [1, 44, 16], + + // 3 + [1, 70, 55], + [1, 70, 44], + [2, 35, 17], + [2, 35, 13], + + // 4 + [1, 100, 80], + [2, 50, 32], + [2, 50, 24], + [4, 25, 9], + + // 5 + [1, 134, 108], + [2, 67, 43], + [2, 33, 15, 2, 34, 16], + [2, 33, 11, 2, 34, 12], + + // 6 + [2, 86, 68], + [4, 43, 27], + [4, 43, 19], + [4, 43, 15], + + // 7 + [2, 98, 78], + [4, 49, 31], + [2, 32, 14, 4, 33, 15], + [4, 39, 13, 1, 40, 14], + + // 8 + [2, 121, 97], + [2, 60, 38, 2, 61, 39], + [4, 40, 18, 2, 41, 19], + [4, 40, 14, 2, 41, 15], + + // 9 + [2, 146, 116], + [3, 58, 36, 2, 59, 37], + [4, 36, 16, 4, 37, 17], + [4, 36, 12, 4, 37, 13], + + // 10 + [2, 86, 68, 2, 87, 69], + [4, 69, 43, 1, 70, 44], + [6, 43, 19, 2, 44, 20], + [6, 43, 15, 2, 44, 16], + + // 11 + [4, 101, 81], + [1, 80, 50, 4, 81, 51], + [4, 50, 22, 4, 51, 23], + [3, 36, 12, 8, 37, 13], + + // 12 + [2, 116, 92, 2, 117, 93], + [6, 58, 36, 2, 59, 37], + [4, 46, 20, 6, 47, 21], + [7, 42, 14, 4, 43, 15], + + // 13 + [4, 133, 107], + [8, 59, 37, 1, 60, 38], + [8, 44, 20, 4, 45, 21], + [12, 33, 11, 4, 34, 12], + + // 14 + [3, 145, 115, 1, 146, 116], + [4, 64, 40, 5, 65, 41], + [11, 36, 16, 5, 37, 17], + [11, 36, 12, 5, 37, 13], + + // 15 + [5, 109, 87, 1, 110, 88], + [5, 65, 41, 5, 66, 42], + [5, 54, 24, 7, 55, 25], + [11, 36, 12, 7, 37, 13], + + // 16 + [5, 122, 98, 1, 123, 99], + [7, 73, 45, 3, 74, 46], + [15, 43, 19, 2, 44, 20], + [3, 45, 15, 13, 46, 16], + + // 17 + [1, 135, 107, 5, 136, 108], + [10, 74, 46, 1, 75, 47], + [1, 50, 22, 15, 51, 23], + [2, 42, 14, 17, 43, 15], + + // 18 + [5, 150, 120, 1, 151, 121], + [9, 69, 43, 4, 70, 44], + [17, 50, 22, 1, 51, 23], + [2, 42, 14, 19, 43, 15], + + // 19 + [3, 141, 113, 4, 142, 114], + [3, 70, 44, 11, 71, 45], + [17, 47, 21, 4, 48, 22], + [9, 39, 13, 16, 40, 14], + + // 20 + [3, 135, 107, 5, 136, 108], + [3, 67, 41, 13, 68, 42], + [15, 54, 24, 5, 55, 25], + [15, 43, 15, 10, 44, 16], + + // 21 + [4, 144, 116, 4, 145, 117], + [17, 68, 42], + [17, 50, 22, 6, 51, 23], + [19, 46, 16, 6, 47, 17], + + // 22 + [2, 139, 111, 7, 140, 112], + [17, 74, 46], + [7, 54, 24, 16, 55, 25], + [34, 37, 13], + + // 23 + [4, 151, 121, 5, 152, 122], + [4, 75, 47, 14, 76, 48], + [11, 54, 24, 14, 55, 25], + [16, 45, 15, 14, 46, 16], + + // 24 + [6, 147, 117, 4, 148, 118], + [6, 73, 45, 14, 74, 46], + [11, 54, 24, 16, 55, 25], + [30, 46, 16, 2, 47, 17], + + // 25 + [8, 132, 106, 4, 133, 107], + [8, 75, 47, 13, 76, 48], + [7, 54, 24, 22, 55, 25], + [22, 45, 15, 13, 46, 16], + + // 26 + [10, 142, 114, 2, 143, 115], + [19, 74, 46, 4, 75, 47], + [28, 50, 22, 6, 51, 23], + [33, 46, 16, 4, 47, 17], + + // 27 + [8, 152, 122, 4, 153, 123], + [22, 73, 45, 3, 74, 46], + [8, 53, 23, 26, 54, 24], + [12, 45, 15, 28, 46, 16], + + // 28 + [3, 147, 117, 10, 148, 118], + [3, 73, 45, 23, 74, 46], + [4, 54, 24, 31, 55, 25], + [11, 45, 15, 31, 46, 16], + + // 29 + [7, 146, 116, 7, 147, 117], + [21, 73, 45, 7, 74, 46], + [1, 53, 23, 37, 54, 24], + [19, 45, 15, 26, 46, 16], + + // 30 + [5, 145, 115, 10, 146, 116], + [19, 75, 47, 10, 76, 48], + [15, 54, 24, 25, 55, 25], + [23, 45, 15, 25, 46, 16], + + // 31 + [13, 145, 115, 3, 146, 116], + [2, 74, 46, 29, 75, 47], + [42, 54, 24, 1, 55, 25], + [23, 45, 15, 28, 46, 16], + + // 32 + [17, 145, 115], + [10, 74, 46, 23, 75, 47], + [10, 54, 24, 35, 55, 25], + [19, 45, 15, 35, 46, 16], + + // 33 + [17, 145, 115, 1, 146, 116], + [14, 74, 46, 21, 75, 47], + [29, 54, 24, 19, 55, 25], + [11, 45, 15, 46, 46, 16], + + // 34 + [13, 145, 115, 6, 146, 116], + [14, 74, 46, 23, 75, 47], + [44, 54, 24, 7, 55, 25], + [59, 46, 16, 1, 47, 17], + + // 35 + [12, 151, 121, 7, 152, 122], + [12, 75, 47, 26, 76, 48], + [39, 54, 24, 14, 55, 25], + [22, 45, 15, 41, 46, 16], + + // 36 + [6, 151, 121, 14, 152, 122], + [6, 75, 47, 34, 76, 48], + [46, 54, 24, 10, 55, 25], + [2, 45, 15, 64, 46, 16], + + // 37 + [17, 152, 122, 4, 153, 123], + [29, 74, 46, 14, 75, 47], + [49, 54, 24, 10, 55, 25], + [24, 45, 15, 46, 46, 16], + + // 38 + [4, 152, 122, 18, 153, 123], + [13, 74, 46, 32, 75, 47], + [48, 54, 24, 14, 55, 25], + [42, 45, 15, 32, 46, 16], + + // 39 + [20, 147, 117, 4, 148, 118], + [40, 75, 47, 7, 76, 48], + [43, 54, 24, 22, 55, 25], + [10, 45, 15, 67, 46, 16], + + // 40 + [19, 148, 118, 6, 149, 119], + [18, 75, 47, 31, 76, 48], + [34, 54, 24, 34, 55, 25], + [20, 45, 15, 61, 46, 16] + ]; + + var qrRSBlock = function(totalCount, dataCount) { + var _this = {}; + _this.totalCount = totalCount; + _this.dataCount = dataCount; + return _this; + }; + + var _this = {}; + + var getRsBlockTable = function(typeNumber, errorCorrectLevel) { + + switch(errorCorrectLevel) { + case QRErrorCorrectLevel.L : + return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0]; + case QRErrorCorrectLevel.M : + return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1]; + case QRErrorCorrectLevel.Q : + return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2]; + case QRErrorCorrectLevel.H : + return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3]; + default : + return undefined; + } + }; + + _this.getRSBlocks = function(typeNumber, errorCorrectLevel) { + + var rsBlock = getRsBlockTable(typeNumber, errorCorrectLevel); + + if (typeof rsBlock == 'undefined') { + throw new Error('bad rs block @ typeNumber:' + typeNumber + + '/errorCorrectLevel:' + errorCorrectLevel); + } + + var length = rsBlock.length / 3; + + var list = new Array(); + + for (var i = 0; i < length; i += 1) { + + var count = rsBlock[i * 3 + 0]; + var totalCount = rsBlock[i * 3 + 1]; + var dataCount = rsBlock[i * 3 + 2]; + + for (var j = 0; j < count; j += 1) { + list.push(qrRSBlock(totalCount, dataCount) ); + } + } + + return list; + }; + + return _this; + }(); + + //--------------------------------------------------------------------- + // qrBitBuffer + //--------------------------------------------------------------------- + + var qrBitBuffer = function() { + + var _buffer = new Array(); + var _length = 0; + + var _this = {}; + + _this.getBuffer = function() { + return _buffer; + }; + + _this.getAt = function(index) { + var bufIndex = Math.floor(index / 8); + return ( (_buffer[bufIndex] >>> (7 - index % 8) ) & 1) == 1; + }; + + _this.put = function(num, length) { + for (var i = 0; i < length; i += 1) { + _this.putBit( ( (num >>> (length - i - 1) ) & 1) == 1); + } + }; + + _this.getLengthInBits = function() { + return _length; + }; + + _this.putBit = function(bit) { + + var bufIndex = Math.floor(_length / 8); + if (_buffer.length <= bufIndex) { + _buffer.push(0); + } + + if (bit) { + _buffer[bufIndex] |= (0x80 >>> (_length % 8) ); + } + + _length += 1; + }; + + return _this; + }; + + //--------------------------------------------------------------------- + // qr8BitByte + //--------------------------------------------------------------------- + + var qr8BitByte = function(data) { + + var _mode = QRMode.MODE_8BIT_BYTE; + var _data = data; + var _bytes = qrcode.stringToBytes(data); + + var _this = {}; + + _this.getMode = function() { + return _mode; + }; + + _this.getLength = function(buffer) { + return _bytes.length; + }; + + _this.write = function(buffer) { + for (var i = 0; i < _bytes.length; i += 1) { + buffer.put(_bytes[i], 8); + } + }; + + return _this; + }; + + //===================================================================== + // GIF Support etc. + // + + //--------------------------------------------------------------------- + // byteArrayOutputStream + //--------------------------------------------------------------------- + + var byteArrayOutputStream = function() { + + var _bytes = new Array(); + + var _this = {}; + + _this.writeByte = function(b) { + _bytes.push(b & 0xff); + }; + + _this.writeShort = function(i) { + _this.writeByte(i); + _this.writeByte(i >>> 8); + }; + + _this.writeBytes = function(b, off, len) { + off = off || 0; + len = len || b.length; + for (var i = 0; i < len; i += 1) { + _this.writeByte(b[i + off]); + } + }; + + _this.writeString = function(s) { + for (var i = 0; i < s.length; i += 1) { + _this.writeByte(s.charCodeAt(i) ); + } + }; + + _this.toByteArray = function() { + return _bytes; + }; + + _this.toString = function() { + var s = ''; + s += '['; + for (var i = 0; i < _bytes.length; i += 1) { + if (i > 0) { + s += ','; + } + s += _bytes[i]; + } + s += ']'; + return s; + }; + + return _this; + }; + + //--------------------------------------------------------------------- + // base64EncodeOutputStream + //--------------------------------------------------------------------- + + var base64EncodeOutputStream = function() { + + var _buffer = 0; + var _buflen = 0; + var _length = 0; + var _base64 = ''; + + var _this = {}; + + var writeEncoded = function(b) { + _base64 += String.fromCharCode(encode(b & 0x3f) ); + }; + + var encode = function(n) { + if (n < 0) { + // error. + } else if (n < 26) { + return 0x41 + n; + } else if (n < 52) { + return 0x61 + (n - 26); + } else if (n < 62) { + return 0x30 + (n - 52); + } else if (n == 62) { + return 0x2b; + } else if (n == 63) { + return 0x2f; + } + throw new Error('n:' + n); + }; + + _this.writeByte = function(n) { + + _buffer = (_buffer << 8) | (n & 0xff); + _buflen += 8; + _length += 1; + + while (_buflen >= 6) { + writeEncoded(_buffer >>> (_buflen - 6) ); + _buflen -= 6; + } + }; + + _this.flush = function() { + + if (_buflen > 0) { + writeEncoded(_buffer << (6 - _buflen) ); + _buffer = 0; + _buflen = 0; + } + + if (_length % 3 != 0) { + // padding + var padlen = 3 - _length % 3; + for (var i = 0; i < padlen; i += 1) { + _base64 += '='; + } + } + }; + + _this.toString = function() { + return _base64; + }; + + return _this; + }; + + //--------------------------------------------------------------------- + // base64DecodeInputStream + //--------------------------------------------------------------------- + + var base64DecodeInputStream = function(str) { + + var _str = str; + var _pos = 0; + var _buffer = 0; + var _buflen = 0; + + var _this = {}; + + _this.read = function() { + + while (_buflen < 8) { + + if (_pos >= _str.length) { + if (_buflen == 0) { + return -1; + } + throw new Error('unexpected end of file./' + _buflen); + } + + var c = _str.charAt(_pos); + _pos += 1; + + if (c == '=') { + _buflen = 0; + return -1; + } else if (c.match(/^\s$/) ) { + // ignore if whitespace. + continue; + } + + _buffer = (_buffer << 6) | decode(c.charCodeAt(0) ); + _buflen += 6; + } + + var n = (_buffer >>> (_buflen - 8) ) & 0xff; + _buflen -= 8; + return n; + }; + + var decode = function(c) { + if (0x41 <= c && c <= 0x5a) { + return c - 0x41; + } else if (0x61 <= c && c <= 0x7a) { + return c - 0x61 + 26; + } else if (0x30 <= c && c <= 0x39) { + return c - 0x30 + 52; + } else if (c == 0x2b) { + return 62; + } else if (c == 0x2f) { + return 63; + } else { + throw new Error('c:' + c); + } + }; + + return _this; + }; + + //--------------------------------------------------------------------- + // gifImage (B/W) + //--------------------------------------------------------------------- + + var gifImage = function(width, height) { + + var _width = width; + var _height = height; + var _data = new Array(width * height); + + var _this = {}; + + _this.setPixel = function(x, y, pixel) { + _data[y * _width + x] = pixel; + }; + + _this.write = function(out) { + + //--------------------------------- + // GIF Signature + + out.writeString('GIF87a'); + + //--------------------------------- + // Screen Descriptor + + out.writeShort(_width); + out.writeShort(_height); + + out.writeByte(0x80); // 2bit + out.writeByte(0); + out.writeByte(0); + + //--------------------------------- + // Global Color Map + + // black + out.writeByte(0x00); + out.writeByte(0x00); + out.writeByte(0x00); + + // white + out.writeByte(0xff); + out.writeByte(0xff); + out.writeByte(0xff); + + //--------------------------------- + // Image Descriptor + + out.writeString(','); + out.writeShort(0); + out.writeShort(0); + out.writeShort(_width); + out.writeShort(_height); + out.writeByte(0); + + //--------------------------------- + // Local Color Map + + //--------------------------------- + // Raster Data + + var lzwMinCodeSize = 2; + var raster = getLZWRaster(lzwMinCodeSize); + + out.writeByte(lzwMinCodeSize); + + var offset = 0; + + while (raster.length - offset > 255) { + out.writeByte(255); + out.writeBytes(raster, offset, 255); + offset += 255; + } + + out.writeByte(raster.length - offset); + out.writeBytes(raster, offset, raster.length - offset); + out.writeByte(0x00); + + //--------------------------------- + // GIF Terminator + out.writeString(';'); + }; + + var bitOutputStream = function(out) { + + var _out = out; + var _bitLength = 0; + var _bitBuffer = 0; + + var _this = {}; + + _this.write = function(data, length) { + + if ( (data >>> length) != 0) { + throw new Error('length over'); + } + + while (_bitLength + length >= 8) { + _out.writeByte(0xff & ( (data << _bitLength) | _bitBuffer) ); + length -= (8 - _bitLength); + data >>>= (8 - _bitLength); + _bitBuffer = 0; + _bitLength = 0; + } + + _bitBuffer = (data << _bitLength) | _bitBuffer; + _bitLength = _bitLength + length; + }; + + _this.flush = function() { + if (_bitLength > 0) { + _out.writeByte(_bitBuffer); + } + }; + + return _this; + }; + + var getLZWRaster = function(lzwMinCodeSize) { + + var clearCode = 1 << lzwMinCodeSize; + var endCode = (1 << lzwMinCodeSize) + 1; + var bitLength = lzwMinCodeSize + 1; + + // Setup LZWTable + var table = lzwTable(); + + for (var i = 0; i < clearCode; i += 1) { + table.add(String.fromCharCode(i) ); + } + table.add(String.fromCharCode(clearCode) ); + table.add(String.fromCharCode(endCode) ); + + var byteOut = byteArrayOutputStream(); + var bitOut = bitOutputStream(byteOut); + + // clear code + bitOut.write(clearCode, bitLength); + + var dataIndex = 0; + + var s = String.fromCharCode(_data[dataIndex]); + dataIndex += 1; + + while (dataIndex < _data.length) { + + var c = String.fromCharCode(_data[dataIndex]); + dataIndex += 1; + + if (table.contains(s + c) ) { + + s = s + c; + + } else { + + bitOut.write(table.indexOf(s), bitLength); + + if (table.size() < 0xfff) { + + if (table.size() == (1 << bitLength) ) { + bitLength += 1; + } + + table.add(s + c); + } + + s = c; + } + } + + bitOut.write(table.indexOf(s), bitLength); + + // end code + bitOut.write(endCode, bitLength); + + bitOut.flush(); + + return byteOut.toByteArray(); + }; + + var lzwTable = function() { + + var _map = {}; + var _size = 0; + + var _this = {}; + + _this.add = function(key) { + if (_this.contains(key) ) { + throw new Error('dup key:' + key); + } + _map[key] = _size; + _size += 1; + }; + + _this.size = function() { + return _size; + }; + + _this.indexOf = function(key) { + return _map[key]; + }; + + _this.contains = function(key) { + return typeof _map[key] != 'undefined'; + }; + + return _this; + }; + + return _this; + }; + + //--------------------------------------------------------------------- + // returns qrcode function. + + return qrcode; +}(); + +(function (factory) { + if (typeof define === 'function' && define.amd) { + define([], factory); + } else if (typeof exports === 'object') { + module.exports = factory(); + } +}(function () { + return qrcode; +})); diff --git a/js/test/qrcode.js b/js/test/qrcode.js new file mode 100644 index 0000000..2cffff0 --- /dev/null +++ b/js/test/qrcode.js @@ -0,0 +1,100 @@ +var assert = require('assert'); +var qrcode = require('../qrcode.js'); + +describe('QRCode', function(){ + it('should exist', function(){ + assert.ok(qrcode); + }); + + it('should be callable function', function(){ + assert.ok(qrcode instanceof Function); + }); + + it('should generate correct GIF image tag', function(){ + var sourceText = 'http://www.example.com/ążśźęćńół'; + var correctImgTag = ''; + + var qr = qrcode(-1, 'M'); + qr.addData(unescape(encodeURI(sourceText))); + qr.make(); + + assert.strictEqual(qr.createImgTag(), correctImgTag); + }); + + it('should generate correct GIF image data', function(){ + var sourceText = 'http://www.example.com/ążśźęćńół'; + var correctImgData = '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'; + + var qr = qrcode(-1, 'M'); + qr.addData(unescape(encodeURI(sourceText))); + qr.make(); + + var data = new Buffer(qr.createImage().bytes.toByteArray()); + + assert.strictEqual(data.toString('base64'), correctImgData); + }); + + it('should generate correct UTF8 text data', function(){ + var sourceText = 'http://www.example.com/ążśźęćńół'; + var correctTextData1 = [ + '█████████████████████████████████', + '██ ▄▄▄▄▄ █ ▄█▀▄██ ▀▄ ▄██ ▄▄▄▄▄ ██', + '██ █ █ █▀ █▀▄█▀▀█▄▄ ▄█ █ █ ██', + '██ █▄▄▄█ ███ ▀ █▄▀▄▄▀ ▀█ █▄▄▄█ ██', + '██▄▄▄▄▄▄▄█ ▀▄█▄▀▄▀ █▄▀▄█▄▄▄▄▄▄▄██', + '██▄█ ▀▄▄▄█▄▄█▀█▀▀▄█▀▀▀█ ▀▀▄█▄ ██', + '██▀▀▄▀▄█▄█ ▄▄█▄ ▄█ ███ ▀█▀▄▄▀██', + '██ ▄▀█▄▀▄ ▄▀▄ █ ▄▀▀█▀██▀██▄▄▀▀██', + '██ █▀ ▄▄▀▀ ▀█ █▀▄ ▀█▄▀▄▄▄ ▄██', + '██▄██ ▄▄▄▄▄█ ▀▄▄ ▀▀▄▄▄█▄▄█▀ ███', + '██▄█▄██▄▄▄ █ █▄▄▀█▀███▄▀▄▄█▄ ████', + '███▄▄██▄▄▄ ▀▀▄█ █▀ █ ▄ ▄▄▄ ▀▀██', + '██ ▄▄▄▄▄ █ █ ▀█▄█ ▀ ▄ █▄█ ▄█ ▀██', + '██ █ █ █▀▄▄ ▄▀ ▀▄█ █ ▄▄ ▄ ██', + '██ █▄▄▄█ █▄█▄▀█ ▀ ▀ ██ █ █▀▄▀▄██', + '██▄▄▄▄▄▄▄█▄▄█▄█▄███▄▄▄▄████▄█▄███', + '▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀'].join('\n'); + + var correctTextData2 = [ + '██████████████████████████████████████████████████████████████████', + '██████████████████████████████████████████████████████████████████', + '████ ██ ████ ████ ██ ████ ████', + '████ ██████████ ██ ████ ██████ ██ ██████ ██████████ ████', + '████ ██ ██ ████ ████ ████████ ██ ██ ██ ████', + '████ ██ ██ ██ ██ ████ ██████ ████ ██ ██ ████', + '████ ██ ██ ██████ ██ ██ ██ ██ ████ ██ ██ ████', + '████ ██████████ ██████ ████ ████ ██ ██████████ ████', + '████ ██ ██ ██ ██ ██ ██ ██ ██ ████', + '████████████████████ ██████ ██ ████ ██████████████████████', + '████ ██ ██ ██ ██████████ ██████████ ████ ██ ████', + '████████ ██████████████ ██ ████ ██ ██████ ████', + '████████ ██ ██ ██ ██ ██ ██████ ██████ ██████', + '████ ██ ████████ ████████ ████ ██████ ██ ████ ████', + '████ ████ ██ ██ ██ ██████████████████ ████████', + '████ ██ ████ ██ ██ ██ ██ ██ ██ ████ ████████ ████', + '████ ████ ████ ████ ████ ████ ██ ████', + '████ ██ ████ ██ ██ ██ ████ ██████ ██████', + '████ ████ ██ ██ ████ ██ ████ ██████', + '██████████ ████████████ ████ ██████████████ ██████', + '████ ██ ████ ██ ██ ████████████ ██ ██ ████████', + '████████████████████ ██ ██████ ██ ████████ ████████ ████████', + '██████ ████ ████ ██ ████ ██ ████████', + '████████████████████ ████ ██ ██ ██ ██████ ████', + '████ ██ ██ ████ ██ ██ ██ ██ ██ ██████', + '████ ██████████ ██ ██ ██████ ██ ██████ ████ ████', + '████ ██ ██ ████ ██ ██ ██ ██ ████', + '████ ██ ██ ██ ████ ██ ████ ██ ████ ██ ████', + '████ ██ ██ ██ ██ ████ ██ ██ ████ ██ ████ ██ ████', + '████ ██████████ ████████ ██ ████ ██ ██ ██ ██████', + '████ ██ ██ ██ ██████ ████████ ██ ██████', + '██████████████████████████████████████████████████████████████████', + '██████████████████████████████████████████████████████████████████',].join('\n'); + + var qr = qrcode(-1, 'M'); + qr.addData(unescape(encodeURI(sourceText))); + qr.make(); + + assert.strictEqual(qr.createASCII(), correctTextData1, 'ASCII QRCode of size 1 is incorrect'); + assert.strictEqual(qr.createASCII(2), correctTextData2, 'ASCII QRCode of size 2 is incorrect'); + }); +}); \ No newline at end of file