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node-qrcode-lite/lib/qrcode.js
Vincenzo Greco b34e5f076c Remove unused Uint32Array and replace it with Array 
Fixes:
2016-09-26 09:30:10 +02:00

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var bops = require('bops');
/**
* QRCode for JavaScript
*
* modified by Ryan Day for nodejs support
* Copyright (c) 2011 Ryan Day
*
* Licensed under the MIT license:
* http://www.opensource.org/licenses/mit-license.php
*
* EXPORTS:
* {
* QRCode:QRCode
* QRErrorCorrectLevel:QRErrorCorrectLevel
* }
//---------------------------------------------------------------------
// QRCode 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
//
//---------------------------------------------------------------------
*/
//---------------------------------------------------------------------
// QRCode
//---------------------------------------------------------------------
exports.QRCode = QRCode;
function QRCode(typeNumber, errorCorrectLevel) {
this.typeNumber = typeNumber;
this.errorCorrectLevel = errorCorrectLevel;
this.modules = null;
this.moduleCount = 0;
this.dataCache = null;
this.dataList = [];
}
QRCode.prototype = {
addData : function(data) {
var newData = new QR8bitByte(data);
this.dataList.push(newData);
this.dataCache = null;
},
isDark : function(row, col) {
if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) {
throw new Error(row + "," + col);
}
return this.modules[row][col];
},
getModuleCount : function() {
return this.moduleCount;
},
make : function() {
this.makeImpl(false, this.getBestMaskPattern() );
},
makeImpl : function(test, maskPattern) {
this.moduleCount = this.typeNumber * 4 + 17;
this.modules = new Array(this.moduleCount);
for (var row = 0; row < this.moduleCount; row++) {
this.modules[row] = new Array(this.moduleCount);
for (var col = 0; col < this.moduleCount; col++) {
this.modules[row][col] = null;//(col + row) % 3;
}
}
this.setupPositionProbePattern(0, 0);
this.setupPositionProbePattern(this.moduleCount - 7, 0);
this.setupPositionProbePattern(0, this.moduleCount - 7);
this.setupPositionAdjustPattern();
this.setupTimingPattern();
this.setupTypeInfo(test, maskPattern);
if (this.typeNumber >= 7) {
this.setupTypeNumber(test);
}
if (this.dataCache == null) {
this.dataCache = QRCode.createData(this.typeNumber, this.errorCorrectLevel, this.dataList);
}
this.mapData(this.dataCache, maskPattern);
},
setupPositionProbePattern : function(row, col) {
for (var r = -1; r <= 7; r++) {
if (row + r <= -1 || this.moduleCount <= row + r) continue;
for (var c = -1; c <= 7; c++) {
if (col + c <= -1 || this.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) ) {
this.modules[row + r][col + c] = true;
} else {
this.modules[row + r][col + c] = false;
}
}
}
},
getBestMaskPattern : function() {
var minLostPoint = 0;
var pattern = 0;
for (var i = 0; i < 8; i++) {
this.makeImpl(true, i);
var lostPoint = QRUtil.getLostPoint(this);
if (i == 0 || minLostPoint > lostPoint) {
minLostPoint = lostPoint;
pattern = i;
}
}
return pattern;
},
setupTimingPattern : function() {
for (var r = 8; r < this.moduleCount - 8; r++) {
if (this.modules[r][6] != null) {
continue;
}
this.modules[r][6] = (r % 2 == 0);
}
for (var c = 8; c < this.moduleCount - 8; c++) {
if (this.modules[6][c] != null) {
continue;
}
this.modules[6][c] = (c % 2 == 0);
}
},
setupPositionAdjustPattern : function() {
var pos = QRUtil.getPatternPosition(this.typeNumber);
pos = pos || '';
for (var i = 0; i < pos.length; i++) {
for (var j = 0; j < pos.length; j++) {
var row = pos[i];
var col = pos[j];
if (this.modules[row][col] != null) {
continue;
}
for (var r = -2; r <= 2; r++) {
for (var c = -2; c <= 2; c++) {
if (r == -2 || r == 2 || c == -2 || c == 2
|| (r == 0 && c == 0) ) {
this.modules[row + r][col + c] = true;
} else {
this.modules[row + r][col + c] = false;
}
}
}
}
}
},
setupTypeNumber : function(test) {
var bits = QRUtil.getBCHTypeNumber(this.typeNumber);
for (var i = 0; i < 18; i++) {
var mod = (!test && ( (bits >> i) & 1) == 1);
this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod;
}
for (var i = 0; i < 18; i++) {
var mod = (!test && ( (bits >> i) & 1) == 1);
this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod;
}
},
setupTypeInfo : function(test, maskPattern) {
var data = (this.errorCorrectLevel << 3) | maskPattern;
var bits = QRUtil.getBCHTypeInfo(data);
// vertical
for (var i = 0; i < 15; i++) {
var mod = (!test && ( (bits >> i) & 1) == 1);
if (i < 6) {
this.modules[i][8] = mod;
} else if (i < 8) {
this.modules[i + 1][8] = mod;
} else {
this.modules[this.moduleCount - 15 + i][8] = mod;
}
}
// horizontal
for (var i = 0; i < 15; i++) {
var mod = (!test && ( (bits >> i) & 1) == 1);
if (i < 8) {
this.modules[8][this.moduleCount - i - 1] = mod;
} else if (i < 9) {
this.modules[8][15 - i - 1 + 1] = mod;
} else {
this.modules[8][15 - i - 1] = mod;
}
}
// fixed module
this.modules[this.moduleCount - 8][8] = (!test);
},
mapData : function(data, maskPattern) {
var inc = -1;
var row = this.moduleCount - 1;
var bitIndex = 7;
var byteIndex = 0;
for (var col = this.moduleCount - 1; col > 0; col -= 2) {
if (col == 6) col--;
while (true) {
for (var c = 0; c < 2; c++) {
if (this.modules[row][col - c] == null) {
var dark = false;
if (byteIndex < data.length) {
dark = ( ( (data[byteIndex] >>> bitIndex) & 1) == 1);
}
var mask = QRUtil.getMask(maskPattern, row, col - c);
if (mask) {
dark = !dark;
}
this.modules[row][col - c] = dark;
bitIndex--;
if (bitIndex == -1) {
byteIndex++;
bitIndex = 7;
}
}
}
row += inc;
if (row < 0 || this.moduleCount <= row) {
row -= inc;
inc = -inc;
break;
}
}
}
}
};
QRCode.PAD0 = 0xEC;
QRCode.PAD1 = 0x11;
QRCode.createData = function(typeNumber, errorCorrectLevel, dataList) {
var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel);
var buffer = new QRBitBuffer();
for (var i = 0; i < dataList.length; i++) {
var data = dataList[i];
buffer.put(data.mode, 4);
buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber) );
data.write(buffer);
}
// calc num max data.
var totalDataCount = 0;
for (var i = 0; i < rsBlocks.length; i++) {
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(QRCode.PAD0, 8);
if (buffer.getLengthInBits() >= totalDataCount * 8) {
break;
}
buffer.put(QRCode.PAD1, 8);
}
return QRCode.createBytes(buffer, rsBlocks);
};
QRCode.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++) {
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++) {
dcdata[r][i] = 0xff & buffer.buffer[i + offset];
}
offset += dcCount;
var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount);
var rawPoly = new 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++) {
var modIndex = i + modPoly.getLength() - ecdata[r].length;
ecdata[r][i] = (modIndex >= 0)? modPoly.get(modIndex) : 0;
}
}
var totalCodeCount = 0;
for (var i = 0; i < rsBlocks.length; i++) {
totalCodeCount += rsBlocks[i].totalCount;
}
var data = new Array(totalCodeCount);
var index = 0;
for (var i = 0; i < maxDcCount; i++) {
for (var r = 0; r < rsBlocks.length; r++) {
if (i < dcdata[r].length) {
data[index++] = dcdata[r][i];
}
}
}
for (var i = 0; i < maxEcCount; i++) {
for (var r = 0; r < rsBlocks.length; r++) {
if (i < ecdata[r].length) {
data[index++] = ecdata[r][i];
}
}
}
return data;
};
//---------------------------------------------------------------------
// QR8bitByte
//---------------------------------------------------------------------
function QR8bitByte(data) {
this.mode = QRMode.MODE_8BIT_BYTE;
this.data = data;
var byteArray = [];
this.parsedData = bops.from(data);
}
QR8bitByte.prototype = {
getLength: function (buffer) {
return this.parsedData.length;
},
write: function (buffer) {
for (var i = 0, l = this.parsedData.length; i < l; i++) {
buffer.put(this.parsedData[i], 8);
}
}
};
//---------------------------------------------------------------------
// QRMode
//---------------------------------------------------------------------
var QRMode = {
MODE_NUMBER : 1 << 0,
MODE_ALPHA_NUM : 1 << 1,
MODE_8BIT_BYTE : 1 << 2,
MODE_KANJI : 1 << 3
};
//---------------------------------------------------------------------
// QRErrorCorrectLevel
//---------------------------------------------------------------------
//exported
var QRErrorCorrectLevel = exports.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 = {
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]
],
G15 : (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0),
G18 : (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0),
G15_MASK : (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1),
getBCHTypeInfo : function(data) {
var d = data << 10;
while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) {
d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) ) );
}
return ( (data << 10) | d) ^ QRUtil.G15_MASK;
},
getBCHTypeNumber : function(data) {
var d = data << 12;
while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) {
d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) ) );
}
return (data << 12) | d;
},
getBCHDigit : function(data) {
var digit = 0;
while (data != 0) {
digit++;
data >>>= 1;
}
return digit;
},
getPatternPosition : function(typeNumber) {
return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1];
},
getMask : function(maskPattern, i, j) {
switch (maskPattern) {
case QRMaskPattern.PATTERN000 : return (i + j) % 2 == 0;
case QRMaskPattern.PATTERN001 : return i % 2 == 0;
case QRMaskPattern.PATTERN010 : return j % 3 == 0;
case QRMaskPattern.PATTERN011 : return (i + j) % 3 == 0;
case QRMaskPattern.PATTERN100 : return (Math.floor(i / 2) + Math.floor(j / 3) ) % 2 == 0;
case QRMaskPattern.PATTERN101 : return (i * j) % 2 + (i * j) % 3 == 0;
case QRMaskPattern.PATTERN110 : return ( (i * j) % 2 + (i * j) % 3) % 2 == 0;
case QRMaskPattern.PATTERN111 : return ( (i * j) % 3 + (i + j) % 2) % 2 == 0;
default :
throw new Error("bad maskPattern:" + maskPattern);
}
},
getErrorCorrectPolynomial : function(errorCorrectLength) {
var a = new QRPolynomial([1], 0);
for (var i = 0; i < errorCorrectLength; i++) {
a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0) );
}
return a;
},
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);
}
},
getLostPoint : function(qrCode) {
var moduleCount = qrCode.getModuleCount();
var lostPoint = 0;
// LEVEL1
for (var row = 0; row < moduleCount; row++) {
for (var col = 0; col < moduleCount; col++) {
var sameCount = 0;
var dark = qrCode.isDark(row, col);
for (var r = -1; r <= 1; r++) {
if (row + r < 0 || moduleCount <= row + r) {
continue;
}
for (var c = -1; c <= 1; c++) {
if (col + c < 0 || moduleCount <= col + c) {
continue;
}
if (r == 0 && c == 0) {
continue;
}
if (dark == qrCode.isDark(row + r, col + c) ) {
sameCount++;
}
}
}
if (sameCount > 5) {
lostPoint += (3 + sameCount - 5);
}
}
}
// LEVEL2
for (var row = 0; row < moduleCount - 1; row++) {
for (var col = 0; col < moduleCount - 1; col++) {
var count = 0;
if (qrCode.isDark(row, col ) ) count++;
if (qrCode.isDark(row + 1, col ) ) count++;
if (qrCode.isDark(row, col + 1) ) count++;
if (qrCode.isDark(row + 1, col + 1) ) count++;
if (count == 0 || count == 4) {
lostPoint += 3;
}
}
}
// LEVEL3
for (var row = 0; row < moduleCount; row++) {
for (var col = 0; col < moduleCount - 6; col++) {
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++) {
for (var row = 0; row < moduleCount - 6; row++) {
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++) {
for (var row = 0; row < moduleCount; row++) {
if (qrCode.isDark(row, col) ) {
darkCount++;
}
}
}
var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5;
lostPoint += ratio * 10;
return lostPoint;
}
};
//---------------------------------------------------------------------
// QRMath
//---------------------------------------------------------------------
var QRMath = {
glog : function(n) {
if (n < 1) {
throw new Error("glog(" + n + ")");
}
return QRMath.LOG_TABLE[n];
},
gexp : function(n) {
while (n < 0) {
n += 255;
}
while (n >= 256) {
n -= 255;
}
return QRMath.EXP_TABLE[n];
},
EXP_TABLE : new Array(256),
LOG_TABLE : new Array(256)
};
for (var i = 0; i < 8; i++) {
QRMath.EXP_TABLE[i] = 1 << i;
}
for (var i = 8; i < 256; i++) {
QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4]
^ QRMath.EXP_TABLE[i - 5]
^ QRMath.EXP_TABLE[i - 6]
^ QRMath.EXP_TABLE[i - 8];
}
for (var i = 0; i < 255; i++) {
QRMath.LOG_TABLE[QRMath.EXP_TABLE[i] ] = i;
}
//---------------------------------------------------------------------
// QRPolynomial
//---------------------------------------------------------------------
function QRPolynomial(num, shift) {
if (num.length == undefined) {
throw new Error(num.length + "/" + shift);
}
var offset = 0;
while (offset < num.length && num[offset] == 0) {
offset++;
}
this.num = new Array(num.length - offset + shift);
for (var i = 0; i < num.length - offset; i++) {
this.num[i] = num[i + offset];
}
}
QRPolynomial.prototype = {
get : function(index) {
return this.num[index];
},
getLength : function() {
return this.num.length;
},
multiply : function(e) {
var num = new Array(this.getLength() + e.getLength() - 1);
for (var i = 0; i < this.getLength(); i++) {
for (var j = 0; j < e.getLength(); j++) {
num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i) ) + QRMath.glog(e.get(j) ) );
}
}
return new QRPolynomial(num, 0);
},
mod : function(e) {
if (this.getLength() - e.getLength() < 0) {
return this;
}
var ratio = QRMath.glog(this.get(0) ) - QRMath.glog(e.get(0) );
var num = new Array(this.getLength() );
for (var i = 0; i < this.getLength(); i++) {
num[i] = this.get(i);
}
for (var i = 0; i < e.getLength(); i++) {
num[i] ^= QRMath.gexp(QRMath.glog(e.get(i) ) + ratio);
}
// recursive call
return new QRPolynomial(num, 0).mod(e);
}
};
//---------------------------------------------------------------------
// QRRSBlock
//---------------------------------------------------------------------
function QRRSBlock(totalCount, dataCount) {
this.totalCount = totalCount;
this.dataCount = dataCount;
}
QRRSBlock.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]
//NOTE added by Ryan Day.to make greater than version 10 qrcodes
// this table starts on page 40 of the spec PDF. google ISO/IEC 18004
// 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]
];
QRRSBlock.getRSBlocks = function(typeNumber, errorCorrectLevel) {
var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel);
if (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++) {
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++) {
list.push(new QRRSBlock(totalCount, dataCount) );
}
}
return list;
}
QRRSBlock.getRsBlockTable = function(typeNumber, errorCorrectLevel) {
switch(errorCorrectLevel) {
case QRErrorCorrectLevel.L :
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0];
case QRErrorCorrectLevel.M :
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1];
case QRErrorCorrectLevel.Q :
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2];
case QRErrorCorrectLevel.H :
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3];
default :
return undefined;
}
}
//---------------------------------------------------------------------
// QRBitBuffer
//---------------------------------------------------------------------
function QRBitBuffer() {
this.buffer = new Array();
this.length = 0;
}
QRBitBuffer.prototype = {
get : function(index) {
var bufIndex = Math.floor(index / 8);
return ( (this.buffer[bufIndex] >>> (7 - index % 8) ) & 1) == 1;
},
put : function(num, length) {
for (var i = 0; i < length; i++) {
this.putBit( ( (num >>> (length - i - 1) ) & 1) == 1);
}
},
getLengthInBits : function() {
return this.length;
},
putBit : function(bit) {
var bufIndex = Math.floor(this.length / 8);
if (this.buffer.length <= bufIndex) {
this.buffer.push(0);
}
if (bit) {
this.buffer[bufIndex] |= (0x80 >>> (this.length % 8) );
}
this.length++;
}
};
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