vue-qr
Version:
The Vue 2.x component of Awesome-qr.js
996 lines (995 loc) • 33.1 kB
JavaScript
//---------------------------------------------------------------------
// QRCode for JavaScript
//
// Copyright (c) 2009 Kazuhiko Arase
// Re-written in TypeScript by Makito <sumimakito@hotmail.com>
//
// 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
//
//---------------------------------------------------------------------
function checkQRVersion(version, sText, nCorrectLevel) {
const length = _getUTF8Length(sText);
const i = version - 1;
let nLimit = 0;
switch (nCorrectLevel) {
case QRErrorCorrectLevel.L:
nLimit = QRCodeLimitLength[i][0];
break;
case QRErrorCorrectLevel.M:
nLimit = QRCodeLimitLength[i][1];
break;
case QRErrorCorrectLevel.Q:
nLimit = QRCodeLimitLength[i][2];
break;
case QRErrorCorrectLevel.H:
nLimit = QRCodeLimitLength[i][3];
break;
}
return length <= nLimit;
}
function _getTypeNumber(sText, nCorrectLevel) {
var nType = 1;
var length = _getUTF8Length(sText);
for (var i = 0, len = QRCodeLimitLength.length; i < len; i++) {
var nLimit = 0;
switch (nCorrectLevel) {
case QRErrorCorrectLevel.L:
nLimit = QRCodeLimitLength[i][0];
break;
case QRErrorCorrectLevel.M:
nLimit = QRCodeLimitLength[i][1];
break;
case QRErrorCorrectLevel.Q:
nLimit = QRCodeLimitLength[i][2];
break;
case QRErrorCorrectLevel.H:
nLimit = QRCodeLimitLength[i][3];
break;
}
if (length <= nLimit) {
break;
}
else {
nType++;
}
}
if (nType > QRCodeLimitLength.length) {
throw new Error("Too long data");
}
return nType;
}
function _getUTF8Length(sText) {
var replacedText = encodeURI(sText)
.toString()
.replace(/\%[0-9a-fA-F]{2}/g, "a");
return replacedText.length + (replacedText.length != Number(sText) ? 3 : 0);
}
class QR8bitByte {
constructor(data) {
this.mode = QRMode.MODE_8BIT_BYTE;
this.parsedData = [];
this.data = data;
const byteArrays = [];
// Added to support UTF-8 Characters
for (let i = 0, l = this.data.length; i < l; i++) {
const byteArray = [];
const code = this.data.charCodeAt(i);
if (code > 0x10000) {
byteArray[0] = 0xf0 | ((code & 0x1c0000) >>> 18);
byteArray[1] = 0x80 | ((code & 0x3f000) >>> 12);
byteArray[2] = 0x80 | ((code & 0xfc0) >>> 6);
byteArray[3] = 0x80 | (code & 0x3f);
}
else if (code > 0x800) {
byteArray[0] = 0xe0 | ((code & 0xf000) >>> 12);
byteArray[1] = 0x80 | ((code & 0xfc0) >>> 6);
byteArray[2] = 0x80 | (code & 0x3f);
}
else if (code > 0x80) {
byteArray[0] = 0xc0 | ((code & 0x7c0) >>> 6);
byteArray[1] = 0x80 | (code & 0x3f);
}
else {
byteArray[0] = code;
}
byteArrays.push(byteArray);
}
this.parsedData = Array.prototype.concat.apply([], byteArrays);
if (this.parsedData.length != this.data.length) {
this.parsedData.unshift(191);
this.parsedData.unshift(187);
this.parsedData.unshift(239);
}
}
getLength() {
return this.parsedData.length;
}
write(buffer) {
for (let i = 0, l = this.parsedData.length; i < l; i++) {
buffer.put(this.parsedData[i], 8);
}
}
}
export class QRCodeModel {
constructor(typeNumber = -1, errorCorrectLevel = QRErrorCorrectLevel.L) {
this.moduleCount = 0;
this.dataList = [];
this.typeNumber = typeNumber;
this.errorCorrectLevel = errorCorrectLevel;
this.moduleCount = 0;
this.dataList = [];
}
addData(data) {
if (this.typeNumber <= 0) {
this.typeNumber = _getTypeNumber(data, this.errorCorrectLevel);
}
else if (this.typeNumber > 40) {
throw new Error(`Invalid QR version: ${this.typeNumber}`);
}
else {
if (!checkQRVersion(this.typeNumber, data, this.errorCorrectLevel)) {
throw new Error(`Data is too long for QR version: ${this.typeNumber}`);
}
}
const newData = new QR8bitByte(data);
this.dataList.push(newData);
this.dataCache = undefined;
}
isDark(row, col) {
if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) {
throw new Error(`${row},${col}`);
}
return this.modules[row][col];
}
getModuleCount() {
return this.moduleCount;
}
make() {
this.makeImpl(false, this.getBestMaskPattern());
}
makeImpl(test, maskPattern) {
this.moduleCount = this.typeNumber * 4 + 17;
this.modules = new Array(this.moduleCount);
for (let row = 0; row < this.moduleCount; row++) {
this.modules[row] = new Array(this.moduleCount);
for (let col = 0; col < this.moduleCount; col++) {
this.modules[row][col] = null;
}
}
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 = QRCodeModel.createData(this.typeNumber, this.errorCorrectLevel, this.dataList);
}
this.mapData(this.dataCache, maskPattern);
}
setupPositionProbePattern(row, col) {
for (let r = -1; r <= 7; r++) {
if (row + r <= -1 || this.moduleCount <= row + r)
continue;
for (let 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() {
if (Number.isInteger(this.maskPattern) && Object.values(QRMaskPattern).includes(this.maskPattern)) {
return this.maskPattern;
}
let minLostPoint = 0;
let pattern = 0;
for (let i = 0; i < 8; i++) {
this.makeImpl(true, i);
const lostPoint = QRUtil.getLostPoint(this);
if (i == 0 || minLostPoint > lostPoint) {
minLostPoint = lostPoint;
pattern = i;
}
}
return pattern;
}
setupTimingPattern() {
for (let r = 8; r < this.moduleCount - 8; r++) {
if (this.modules[r][6] != null) {
continue;
}
this.modules[r][6] = r % 2 == 0;
}
for (let c = 8; c < this.moduleCount - 8; c++) {
if (this.modules[6][c] != null) {
continue;
}
this.modules[6][c] = c % 2 == 0;
}
}
setupPositionAdjustPattern() {
const pos = QRUtil.getPatternPosition(this.typeNumber);
for (let i = 0; i < pos.length; i++) {
for (let j = 0; j < pos.length; j++) {
const row = pos[i];
const col = pos[j];
if (this.modules[row][col] != null) {
continue;
}
for (let r = -2; r <= 2; r++) {
for (let 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(test) {
const 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(test, maskPattern) {
const data = (this.errorCorrectLevel << 3) | maskPattern;
const bits = QRUtil.getBCHTypeInfo(data);
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;
}
}
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;
}
}
this.modules[this.moduleCount - 8][8] = !test;
}
mapData(data, maskPattern) {
let inc = -1;
let row = this.moduleCount - 1;
let bitIndex = 7;
let byteIndex = 0;
for (let col = this.moduleCount - 1; col > 0; col -= 2) {
if (col == 6)
col--;
while (true) {
for (let c = 0; c < 2; c++) {
if (this.modules[row][col - c] == null) {
let dark = false;
if (byteIndex < data.length) {
dark = ((data[byteIndex] >>> bitIndex) & 1) == 1;
}
const 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;
}
}
}
}
static createData(typeNumber, errorCorrectLevel, dataList) {
const rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel);
const buffer = new QRBitBuffer();
for (var i = 0; i < dataList.length; i++) {
const data = dataList[i];
buffer.put(data.mode, 4);
buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber));
data.write(buffer);
}
let 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})`);
}
if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) {
buffer.put(0, 4);
}
while (buffer.getLengthInBits() % 8 != 0) {
buffer.putBit(false);
}
while (true) {
if (buffer.getLengthInBits() >= totalDataCount * 8) {
break;
}
buffer.put(QRCodeModel.PAD0, 8);
if (buffer.getLengthInBits() >= totalDataCount * 8) {
break;
}
buffer.put(QRCodeModel.PAD1, 8);
}
return QRCodeModel.createBytes(buffer, rsBlocks);
}
static createBytes(buffer, rsBlocks) {
let offset = 0;
let maxDcCount = 0;
let maxEcCount = 0;
const dcdata = new Array(rsBlocks.length);
const ecdata = new Array(rsBlocks.length);
for (var r = 0; r < rsBlocks.length; r++) {
const dcCount = rsBlocks[r].dataCount;
const 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;
const rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount);
const rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1);
const modPoly = rawPoly.mod(rsPoly);
ecdata[r] = new Array(rsPoly.getLength() - 1);
for (var i = 0; i < ecdata[r].length; i++) {
const modIndex = i + modPoly.getLength() - ecdata[r].length;
ecdata[r][i] = modIndex >= 0 ? modPoly.get(modIndex) : 0;
}
}
let totalCodeCount = 0;
for (var i = 0; i < rsBlocks.length; i++) {
totalCodeCount += rsBlocks[i].totalCount;
}
const data = new Array(totalCodeCount);
let 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;
}
}
QRCodeModel.PAD0 = 0xec;
QRCodeModel.PAD1 = 0x11;
export const QRErrorCorrectLevel = { L: 1, M: 0, Q: 3, H: 2 };
const QRMode = { MODE_NUMBER: 1 << 0, MODE_ALPHA_NUM: 1 << 1, MODE_8BIT_BYTE: 1 << 2, MODE_KANJI: 1 << 3 };
export const QRMaskPattern = {
PATTERN000: 0,
PATTERN001: 1,
PATTERN010: 2,
PATTERN011: 3,
PATTERN100: 4,
PATTERN101: 5,
PATTERN110: 6,
PATTERN111: 7,
};
export class QRUtil {
static getBCHTypeInfo(data) {
let 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;
}
static getBCHTypeNumber(data) {
let 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;
}
static getBCHDigit(data) {
let digit = 0;
while (data != 0) {
digit++;
data >>>= 1;
}
return digit;
}
static getPatternPosition(typeNumber) {
return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1];
}
static getMask(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}`);
}
}
static getErrorCorrectPolynomial(errorCorrectLength) {
let a = new QRPolynomial([1], 0);
for (let i = 0; i < errorCorrectLength; i++) {
a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0));
}
return a;
}
static getLengthInBits(mode, type) {
if (1 <= type && type < 10) {
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:${mode}`);
}
}
else if (type < 27) {
switch (mode) {
case QRMode.MODE_NUMBER:
return 12;
case QRMode.MODE_ALPHA_NUM:
return 11;
case QRMode.MODE_8BIT_BYTE:
return 16;
case QRMode.MODE_KANJI:
return 10;
default:
throw new Error(`mode:${mode}`);
}
}
else if (type < 41) {
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}`);
}
}
static getLostPoint(qrCode) {
const moduleCount = qrCode.getModuleCount();
let lostPoint = 0;
for (var row = 0; row < moduleCount; row++) {
for (var col = 0; col < moduleCount; col++) {
let sameCount = 0;
const dark = qrCode.isDark(row, col);
for (let r = -1; r <= 1; r++) {
if (row + r < 0 || moduleCount <= row + r) {
continue;
}
for (let 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;
}
}
}
for (var row = 0; row < moduleCount - 1; row++) {
for (var col = 0; col < moduleCount - 1; col++) {
let 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;
}
}
}
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;
}
}
}
let darkCount = 0;
for (var col = 0; col < moduleCount; col++) {
for (var row = 0; row < moduleCount; row++) {
if (qrCode.isDark(row, col)) {
darkCount++;
}
}
}
const ratio = Math.abs((100 * darkCount) / moduleCount / moduleCount - 50) / 5;
lostPoint += ratio * 10;
return lostPoint;
}
}
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],
];
QRUtil.G15 = (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0);
QRUtil.G18 = (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0);
QRUtil.G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1);
export class QRMath {
static glog(n) {
if (n < 1) {
throw new Error(`glog(${n})`);
}
return QRMath.LOG_TABLE[n];
}
static gexp(n) {
while (n < 0) {
n += 255;
}
while (n >= 256) {
n -= 255;
}
return QRMath.EXP_TABLE[n];
}
}
QRMath.EXP_TABLE = new Array(256);
QRMath.LOG_TABLE = new Array(256);
QRMath._constructor = (function () {
for (var i = 0; i < 8; i++) {
QRMath.EXP_TABLE[i] = 1 << i;
}
for (var i = 8; i < 256; i++) {
QRMath.EXP_TABLE[i] =
QRMath.EXP_TABLE[i - 4] ^ QRMath.EXP_TABLE[i - 5] ^ QRMath.EXP_TABLE[i - 6] ^ QRMath.EXP_TABLE[i - 8];
}
for (var i = 0; i < 255; i++) {
QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i;
}
})();
class QRPolynomial {
constructor(num, shift) {
if (num.length == undefined) {
throw new Error(`${num.length}/${shift}`);
}
let offset = 0;
while (offset < num.length && num[offset] == 0) {
offset++;
}
this.num = new Array(num.length - offset + shift);
for (let i = 0; i < num.length - offset; i++) {
this.num[i] = num[i + offset];
}
}
get(index) {
return this.num[index];
}
getLength() {
return this.num.length;
}
multiply(e) {
const num = new Array(this.getLength() + e.getLength() - 1);
for (let i = 0; i < this.getLength(); i++) {
for (let j = 0; j < e.getLength(); j++) {
num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i)) + QRMath.glog(e.get(j)));
}
}
return new QRPolynomial(num, 0);
}
mod(e) {
if (this.getLength() - e.getLength() < 0) {
return this;
}
const ratio = QRMath.glog(this.get(0)) - QRMath.glog(e.get(0));
const num = new Array(this.getLength());
for (var i = 0; i < this.getLength(); i++) {
num[i] = this.get(i);
}
for (var i = 0; i < e.getLength(); i++) {
num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio);
}
return new QRPolynomial(num, 0).mod(e);
}
}
class QRRSBlock {
constructor(totalCount, dataCount) {
this.totalCount = totalCount;
this.dataCount = dataCount;
}
static getRSBlocks(typeNumber, errorCorrectLevel) {
const rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel);
if (rsBlock == undefined) {
throw new Error(`bad rs block @ typeNumber:${typeNumber}/errorCorrectLevel:${errorCorrectLevel}`);
}
const length = rsBlock.length / 3;
const list = [];
for (let i = 0; i < length; i++) {
const count = rsBlock[i * 3 + 0];
const totalCount = rsBlock[i * 3 + 1];
const dataCount = rsBlock[i * 3 + 2];
for (let j = 0; j < count; j++) {
list.push(new QRRSBlock(totalCount, dataCount));
}
}
return list;
}
static getRsBlockTable(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;
}
}
}
QRRSBlock.RS_BLOCK_TABLE = [
[1, 26, 19],
[1, 26, 16],
[1, 26, 13],
[1, 26, 9],
[1, 44, 34],
[1, 44, 28],
[1, 44, 22],
[1, 44, 16],
[1, 70, 55],
[1, 70, 44],
[2, 35, 17],
[2, 35, 13],
[1, 100, 80],
[2, 50, 32],
[2, 50, 24],
[4, 25, 9],
[1, 134, 108],
[2, 67, 43],
[2, 33, 15, 2, 34, 16],
[2, 33, 11, 2, 34, 12],
[2, 86, 68],
[4, 43, 27],
[4, 43, 19],
[4, 43, 15],
[2, 98, 78],
[4, 49, 31],
[2, 32, 14, 4, 33, 15],
[4, 39, 13, 1, 40, 14],
[2, 121, 97],
[2, 60, 38, 2, 61, 39],
[4, 40, 18, 2, 41, 19],
[4, 40, 14, 2, 41, 15],
[2, 146, 116],
[3, 58, 36, 2, 59, 37],
[4, 36, 16, 4, 37, 17],
[4, 36, 12, 4, 37, 13],
[2, 86, 68, 2, 87, 69],
[4, 69, 43, 1, 70, 44],
[6, 43, 19, 2, 44, 20],
[6, 43, 15, 2, 44, 16],
[4, 101, 81],
[1, 80, 50, 4, 81, 51],
[4, 50, 22, 4, 51, 23],
[3, 36, 12, 8, 37, 13],
[2, 116, 92, 2, 117, 93],
[6, 58, 36, 2, 59, 37],
[4, 46, 20, 6, 47, 21],
[7, 42, 14, 4, 43, 15],
[4, 133, 107],
[8, 59, 37, 1, 60, 38],
[8, 44, 20, 4, 45, 21],
[12, 33, 11, 4, 34, 12],
[3, 145, 115, 1, 146, 116],
[4, 64, 40, 5, 65, 41],
[11, 36, 16, 5, 37, 17],
[11, 36, 12, 5, 37, 13],
[5, 109, 87, 1, 110, 88],
[5, 65, 41, 5, 66, 42],
[5, 54, 24, 7, 55, 25],
[11, 36, 12],
[5, 122, 98, 1, 123, 99],
[7, 73, 45, 3, 74, 46],
[15, 43, 19, 2, 44, 20],
[3, 45, 15, 13, 46, 16],
[1, 135, 107, 5, 136, 108],
[10, 74, 46, 1, 75, 47],
[1, 50, 22, 15, 51, 23],
[2, 42, 14, 17, 43, 15],
[5, 150, 120, 1, 151, 121],
[9, 69, 43, 4, 70, 44],
[17, 50, 22, 1, 51, 23],
[2, 42, 14, 19, 43, 15],
[3, 141, 113, 4, 142, 114],
[3, 70, 44, 11, 71, 45],
[17, 47, 21, 4, 48, 22],
[9, 39, 13, 16, 40, 14],
[3, 135, 107, 5, 136, 108],
[3, 67, 41, 13, 68, 42],
[15, 54, 24, 5, 55, 25],
[15, 43, 15, 10, 44, 16],
[4, 144, 116, 4, 145, 117],
[17, 68, 42],
[17, 50, 22, 6, 51, 23],
[19, 46, 16, 6, 47, 17],
[2, 139, 111, 7, 140, 112],
[17, 74, 46],
[7, 54, 24, 16, 55, 25],
[34, 37, 13],
[4, 151, 121, 5, 152, 122],
[4, 75, 47, 14, 76, 48],
[11, 54, 24, 14, 55, 25],
[16, 45, 15, 14, 46, 16],
[6, 147, 117, 4, 148, 118],
[6, 73, 45, 14, 74, 46],
[11, 54, 24, 16, 55, 25],
[30, 46, 16, 2, 47, 17],
[8, 132, 106, 4, 133, 107],
[8, 75, 47, 13, 76, 48],
[7, 54, 24, 22, 55, 25],
[22, 45, 15, 13, 46, 16],
[10, 142, 114, 2, 143, 115],
[19, 74, 46, 4, 75, 47],
[28, 50, 22, 6, 51, 23],
[33, 46, 16, 4, 47, 17],
[8, 152, 122, 4, 153, 123],
[22, 73, 45, 3, 74, 46],
[8, 53, 23, 26, 54, 24],
[12, 45, 15, 28, 46, 16],
[3, 147, 117, 10, 148, 118],
[3, 73, 45, 23, 74, 46],
[4, 54, 24, 31, 55, 25],
[11, 45, 15, 31, 46, 16],
[7, 146, 116, 7, 147, 117],
[21, 73, 45, 7, 74, 46],
[1, 53, 23, 37, 54, 24],
[19, 45, 15, 26, 46, 16],
[5, 145, 115, 10, 146, 116],
[19, 75, 47, 10, 76, 48],
[15, 54, 24, 25, 55, 25],
[23, 45, 15, 25, 46, 16],
[13, 145, 115, 3, 146, 116],
[2, 74, 46, 29, 75, 47],
[42, 54, 24, 1, 55, 25],
[23, 45, 15, 28, 46, 16],
[17, 145, 115],
[10, 74, 46, 23, 75, 47],
[10, 54, 24, 35, 55, 25],
[19, 45, 15, 35, 46, 16],
[17, 145, 115, 1, 146, 116],
[14, 74, 46, 21, 75, 47],
[29, 54, 24, 19, 55, 25],
[11, 45, 15, 46, 46, 16],
[13, 145, 115, 6, 146, 116],
[14, 74, 46, 23, 75, 47],
[44, 54, 24, 7, 55, 25],
[59, 46, 16, 1, 47, 17],
[12, 151, 121, 7, 152, 122],
[12, 75, 47, 26, 76, 48],
[39, 54, 24, 14, 55, 25],
[22, 45, 15, 41, 46, 16],
[6, 151, 121, 14, 152, 122],
[6, 75, 47, 34, 76, 48],
[46, 54, 24, 10, 55, 25],
[2, 45, 15, 64, 46, 16],
[17, 152, 122, 4, 153, 123],
[29, 74, 46, 14, 75, 47],
[49, 54, 24, 10, 55, 25],
[24, 45, 15, 46, 46, 16],
[4, 152, 122, 18, 153, 123],
[13, 74, 46, 32, 75, 47],
[48, 54, 24, 14, 55, 25],
[42, 45, 15, 32, 46, 16],
[20, 147, 117, 4, 148, 118],
[40, 75, 47, 7, 76, 48],
[43, 54, 24, 22, 55, 25],
[10, 45, 15, 67, 46, 16],
[19, 148, 118, 6, 149, 119],
[18, 75, 47, 31, 76, 48],
[34, 54, 24, 34, 55, 25],
[20, 45, 15, 61, 46, 16],
];
class QRBitBuffer {
constructor() {
this.buffer = [];
this.length = 0;
}
get(index) {
const bufIndex = Math.floor(index / 8);
return ((this.buffer[bufIndex] >>> (7 - (index % 8))) & 1) == 1;
}
put(num, length) {
for (let i = 0; i < length; i++) {
this.putBit(((num >>> (length - i - 1)) & 1) == 1);
}
}
getLengthInBits() {
return this.length;
}
putBit(bit) {
const 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++;
}
}
const QRCodeLimitLength = [
[17, 14, 11, 7],
[32, 26, 20, 14],
[53, 42, 32, 24],
[78, 62, 46, 34],
[106, 84, 60, 44],
[134, 106, 74, 58],
[154, 122, 86, 64],
[192, 152, 108, 84],
[230, 180, 130, 98],
[271, 213, 151, 119],
[321, 251, 177, 137],
[367, 287, 203, 155],
[425, 331, 241, 177],
[458, 362, 258, 194],
[520, 412, 292, 220],
[586, 450, 322, 250],
[644, 504, 364, 280],
[718, 560, 394, 310],
[792, 624, 442, 338],
[858, 666, 482, 382],
[929, 711, 509, 403],
[1003, 779, 565, 439],
[1091, 857, 611, 461],
[1171, 911, 661, 511],
[1273, 997, 715, 535],
[1367, 1059, 751, 593],
[1465, 1125, 805, 625],
[1528, 1190, 868, 658],
[1628, 1264, 908, 698],
[1732, 1370, 982, 742],
[1840, 1452, 1030, 790],
[1952, 1538, 1112, 842],
[2068, 1628, 1168, 898],
[2188, 1722, 1228, 958],
[2303, 1809, 1283, 983],
[2431, 1911, 1351, 1051],
[2563, 1989, 1423, 1093],
[2699, 2099, 1499, 1139],
[2809, 2213, 1579, 1219],
[2953, 2331, 1663, 1273],
];