"use strict";
|
var __values = (this && this.__values) || function(o) {
|
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
|
if (m) return m.call(o);
|
if (o && typeof o.length === "number") return {
|
next: function () {
|
if (o && i >= o.length) o = void 0;
|
return { value: o && o[i++], done: !o };
|
}
|
};
|
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
|
};
|
Object.defineProperty(exports, "__esModule", { value: true });
|
var BitArray_1 = require("../../common/BitArray");
|
var IllegalArgumentException_1 = require("../../IllegalArgumentException");
|
var StringUtils_1 = require("../../common/StringUtils");
|
var BitMatrix_1 = require("../../common/BitMatrix");
|
var AztecCode_1 = require("./AztecCode");
|
var ReedSolomonEncoder_1 = require("../../common/reedsolomon/ReedSolomonEncoder");
|
var GenericGF_1 = require("../../common/reedsolomon/GenericGF");
|
var HighLevelEncoder_1 = require("./HighLevelEncoder");
|
var Integer_1 = require("../../util/Integer");
|
/*
|
* Copyright 2013 ZXing authors
|
*
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
* you may not use this file except in compliance with the License.
|
* You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing, software
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
* See the License for the specific language governing permissions and
|
* limitations under the License.
|
*/
|
// package com.google.zxing.aztec.encoder;
|
// import com.google.zxing.common.BitArray;
|
// import com.google.zxing.common.BitMatrix;
|
// import com.google.zxing.common.reedsolomon.GenericGF;
|
// import com.google.zxing.common.reedsolomon.ReedSolomonEncoder;
|
/**
|
* Generates Aztec 2D barcodes.
|
*
|
* @author Rustam Abdullaev
|
*/
|
var Encoder = /** @class */ (function () {
|
function Encoder() {
|
}
|
/**
|
* Encodes the given binary content as an Aztec symbol
|
*
|
* @param data input data string
|
* @return Aztec symbol matrix with metadata
|
*/
|
Encoder.encodeBytes = function (data) {
|
return Encoder.encode(data, Encoder.DEFAULT_EC_PERCENT, Encoder.DEFAULT_AZTEC_LAYERS);
|
};
|
/**
|
* Encodes the given binary content as an Aztec symbol
|
*
|
* @param data input data string
|
* @param minECCPercent minimal percentage of error check words (According to ISO/IEC 24778:2008,
|
* a minimum of 23% + 3 words is recommended)
|
* @param userSpecifiedLayers if non-zero, a user-specified value for the number of layers
|
* @return Aztec symbol matrix with metadata
|
*/
|
Encoder.encode = function (data, minECCPercent, userSpecifiedLayers) {
|
// High-level encode
|
var bits = new HighLevelEncoder_1.default(data).encode();
|
// stuff bits and choose symbol size
|
var eccBits = Integer_1.default.truncDivision((bits.getSize() * minECCPercent), 100) + 11;
|
var totalSizeBits = bits.getSize() + eccBits;
|
var compact;
|
var layers;
|
var totalBitsInLayer;
|
var wordSize;
|
var stuffedBits;
|
if (userSpecifiedLayers !== Encoder.DEFAULT_AZTEC_LAYERS) {
|
compact = userSpecifiedLayers < 0;
|
layers = Math.abs(userSpecifiedLayers);
|
if (layers > (compact ? Encoder.MAX_NB_BITS_COMPACT : Encoder.MAX_NB_BITS)) {
|
throw new IllegalArgumentException_1.default(StringUtils_1.default.format('Illegal value %s for layers', userSpecifiedLayers));
|
}
|
totalBitsInLayer = Encoder.totalBitsInLayer(layers, compact);
|
wordSize = Encoder.WORD_SIZE[layers];
|
var usableBitsInLayers = totalBitsInLayer - (totalBitsInLayer % wordSize);
|
stuffedBits = Encoder.stuffBits(bits, wordSize);
|
if (stuffedBits.getSize() + eccBits > usableBitsInLayers) {
|
throw new IllegalArgumentException_1.default('Data to large for user specified layer');
|
}
|
if (compact && stuffedBits.getSize() > wordSize * 64) {
|
// Compact format only allows 64 data words, though C4 can hold more words than that
|
throw new IllegalArgumentException_1.default('Data to large for user specified layer');
|
}
|
}
|
else {
|
wordSize = 0;
|
stuffedBits = null;
|
// We look at the possible table sizes in the order Compact1, Compact2, Compact3,
|
// Compact4, Normal4,... Normal(i) for i < 4 isn't typically used since Compact(i+1)
|
// is the same size, but has more data.
|
for (var i /*int*/ = 0;; i++) {
|
if (i > Encoder.MAX_NB_BITS) {
|
throw new IllegalArgumentException_1.default('Data too large for an Aztec code');
|
}
|
compact = i <= 3;
|
layers = compact ? i + 1 : i;
|
totalBitsInLayer = Encoder.totalBitsInLayer(layers, compact);
|
if (totalSizeBits > totalBitsInLayer) {
|
continue;
|
}
|
// [Re]stuff the bits if this is the first opportunity, or if the
|
// wordSize has changed
|
if (stuffedBits == null || wordSize !== Encoder.WORD_SIZE[layers]) {
|
wordSize = Encoder.WORD_SIZE[layers];
|
stuffedBits = Encoder.stuffBits(bits, wordSize);
|
}
|
var usableBitsInLayers = totalBitsInLayer - (totalBitsInLayer % wordSize);
|
if (compact && stuffedBits.getSize() > wordSize * 64) {
|
// Compact format only allows 64 data words, though C4 can hold more words than that
|
continue;
|
}
|
if (stuffedBits.getSize() + eccBits <= usableBitsInLayers) {
|
break;
|
}
|
}
|
}
|
var messageBits = Encoder.generateCheckWords(stuffedBits, totalBitsInLayer, wordSize);
|
// generate mode message
|
var messageSizeInWords = stuffedBits.getSize() / wordSize;
|
var modeMessage = Encoder.generateModeMessage(compact, layers, messageSizeInWords);
|
// allocate symbol
|
var baseMatrixSize = (compact ? 11 : 14) + layers * 4; // not including alignment lines
|
var alignmentMap = new Int32Array(baseMatrixSize);
|
var matrixSize;
|
if (compact) {
|
// no alignment marks in compact mode, alignmentMap is a no-op
|
matrixSize = baseMatrixSize;
|
for (var i /*int*/ = 0; i < alignmentMap.length; i++) {
|
alignmentMap[i] = i;
|
}
|
}
|
else {
|
matrixSize = baseMatrixSize + 1 + 2 * Integer_1.default.truncDivision((Integer_1.default.truncDivision(baseMatrixSize, 2) - 1), 15);
|
var origCenter = Integer_1.default.truncDivision(baseMatrixSize, 2);
|
var center = Integer_1.default.truncDivision(matrixSize, 2);
|
for (var i /*int*/ = 0; i < origCenter; i++) {
|
var newOffset = i + Integer_1.default.truncDivision(i, 15);
|
alignmentMap[origCenter - i - 1] = center - newOffset - 1;
|
alignmentMap[origCenter + i] = center + newOffset + 1;
|
}
|
}
|
var matrix = new BitMatrix_1.default(matrixSize);
|
// draw data bits
|
for (var i /*int*/ = 0, rowOffset = 0; i < layers; i++) {
|
var rowSize = (layers - i) * 4 + (compact ? 9 : 12);
|
for (var j /*int*/ = 0; j < rowSize; j++) {
|
var columnOffset = j * 2;
|
for (var k /*int*/ = 0; k < 2; k++) {
|
if (messageBits.get(rowOffset + columnOffset + k)) {
|
matrix.set(alignmentMap[i * 2 + k], alignmentMap[i * 2 + j]);
|
}
|
if (messageBits.get(rowOffset + rowSize * 2 + columnOffset + k)) {
|
matrix.set(alignmentMap[i * 2 + j], alignmentMap[baseMatrixSize - 1 - i * 2 - k]);
|
}
|
if (messageBits.get(rowOffset + rowSize * 4 + columnOffset + k)) {
|
matrix.set(alignmentMap[baseMatrixSize - 1 - i * 2 - k], alignmentMap[baseMatrixSize - 1 - i * 2 - j]);
|
}
|
if (messageBits.get(rowOffset + rowSize * 6 + columnOffset + k)) {
|
matrix.set(alignmentMap[baseMatrixSize - 1 - i * 2 - j], alignmentMap[i * 2 + k]);
|
}
|
}
|
}
|
rowOffset += rowSize * 8;
|
}
|
// draw mode message
|
Encoder.drawModeMessage(matrix, compact, matrixSize, modeMessage);
|
// draw alignment marks
|
if (compact) {
|
Encoder.drawBullsEye(matrix, Integer_1.default.truncDivision(matrixSize, 2), 5);
|
}
|
else {
|
Encoder.drawBullsEye(matrix, Integer_1.default.truncDivision(matrixSize, 2), 7);
|
for (var i /*int*/ = 0, j = 0; i < Integer_1.default.truncDivision(baseMatrixSize, 2) - 1; i += 15, j += 16) {
|
for (var k /*int*/ = Integer_1.default.truncDivision(matrixSize, 2) & 1; k < matrixSize; k += 2) {
|
matrix.set(Integer_1.default.truncDivision(matrixSize, 2) - j, k);
|
matrix.set(Integer_1.default.truncDivision(matrixSize, 2) + j, k);
|
matrix.set(k, Integer_1.default.truncDivision(matrixSize, 2) - j);
|
matrix.set(k, Integer_1.default.truncDivision(matrixSize, 2) + j);
|
}
|
}
|
}
|
var aztec = new AztecCode_1.default();
|
aztec.setCompact(compact);
|
aztec.setSize(matrixSize);
|
aztec.setLayers(layers);
|
aztec.setCodeWords(messageSizeInWords);
|
aztec.setMatrix(matrix);
|
return aztec;
|
};
|
Encoder.drawBullsEye = function (matrix, center, size) {
|
for (var i /*int*/ = 0; i < size; i += 2) {
|
for (var j /*int*/ = center - i; j <= center + i; j++) {
|
matrix.set(j, center - i);
|
matrix.set(j, center + i);
|
matrix.set(center - i, j);
|
matrix.set(center + i, j);
|
}
|
}
|
matrix.set(center - size, center - size);
|
matrix.set(center - size + 1, center - size);
|
matrix.set(center - size, center - size + 1);
|
matrix.set(center + size, center - size);
|
matrix.set(center + size, center - size + 1);
|
matrix.set(center + size, center + size - 1);
|
};
|
Encoder.generateModeMessage = function (compact, layers, messageSizeInWords) {
|
var modeMessage = new BitArray_1.default();
|
if (compact) {
|
modeMessage.appendBits(layers - 1, 2);
|
modeMessage.appendBits(messageSizeInWords - 1, 6);
|
modeMessage = Encoder.generateCheckWords(modeMessage, 28, 4);
|
}
|
else {
|
modeMessage.appendBits(layers - 1, 5);
|
modeMessage.appendBits(messageSizeInWords - 1, 11);
|
modeMessage = Encoder.generateCheckWords(modeMessage, 40, 4);
|
}
|
return modeMessage;
|
};
|
Encoder.drawModeMessage = function (matrix, compact, matrixSize, modeMessage) {
|
var center = Integer_1.default.truncDivision(matrixSize, 2);
|
if (compact) {
|
for (var i /*int*/ = 0; i < 7; i++) {
|
var offset = center - 3 + i;
|
if (modeMessage.get(i)) {
|
matrix.set(offset, center - 5);
|
}
|
if (modeMessage.get(i + 7)) {
|
matrix.set(center + 5, offset);
|
}
|
if (modeMessage.get(20 - i)) {
|
matrix.set(offset, center + 5);
|
}
|
if (modeMessage.get(27 - i)) {
|
matrix.set(center - 5, offset);
|
}
|
}
|
}
|
else {
|
for (var i /*int*/ = 0; i < 10; i++) {
|
var offset = center - 5 + i + Integer_1.default.truncDivision(i, 5);
|
if (modeMessage.get(i)) {
|
matrix.set(offset, center - 7);
|
}
|
if (modeMessage.get(i + 10)) {
|
matrix.set(center + 7, offset);
|
}
|
if (modeMessage.get(29 - i)) {
|
matrix.set(offset, center + 7);
|
}
|
if (modeMessage.get(39 - i)) {
|
matrix.set(center - 7, offset);
|
}
|
}
|
}
|
};
|
Encoder.generateCheckWords = function (bitArray, totalBits, wordSize) {
|
var e_1, _a;
|
// bitArray is guaranteed to be a multiple of the wordSize, so no padding needed
|
var messageSizeInWords = bitArray.getSize() / wordSize;
|
var rs = new ReedSolomonEncoder_1.default(Encoder.getGF(wordSize));
|
var totalWords = Integer_1.default.truncDivision(totalBits, wordSize);
|
var messageWords = Encoder.bitsToWords(bitArray, wordSize, totalWords);
|
rs.encode(messageWords, totalWords - messageSizeInWords);
|
var startPad = totalBits % wordSize;
|
var messageBits = new BitArray_1.default();
|
messageBits.appendBits(0, startPad);
|
try {
|
for (var _b = __values(Array.from(messageWords)), _c = _b.next(); !_c.done; _c = _b.next()) {
|
var messageWord = _c.value /*: int*/;
|
messageBits.appendBits(messageWord, wordSize);
|
}
|
}
|
catch (e_1_1) { e_1 = { error: e_1_1 }; }
|
finally {
|
try {
|
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
|
}
|
finally { if (e_1) throw e_1.error; }
|
}
|
return messageBits;
|
};
|
Encoder.bitsToWords = function (stuffedBits, wordSize, totalWords) {
|
var message = new Int32Array(totalWords);
|
var i;
|
var n;
|
for (i = 0, n = stuffedBits.getSize() / wordSize; i < n; i++) {
|
var value = 0;
|
for (var j /*int*/ = 0; j < wordSize; j++) {
|
value |= stuffedBits.get(i * wordSize + j) ? (1 << wordSize - j - 1) : 0;
|
}
|
message[i] = value;
|
}
|
return message;
|
};
|
Encoder.getGF = function (wordSize) {
|
switch (wordSize) {
|
case 4:
|
return GenericGF_1.default.AZTEC_PARAM;
|
case 6:
|
return GenericGF_1.default.AZTEC_DATA_6;
|
case 8:
|
return GenericGF_1.default.AZTEC_DATA_8;
|
case 10:
|
return GenericGF_1.default.AZTEC_DATA_10;
|
case 12:
|
return GenericGF_1.default.AZTEC_DATA_12;
|
default:
|
throw new IllegalArgumentException_1.default('Unsupported word size ' + wordSize);
|
}
|
};
|
Encoder.stuffBits = function (bits, wordSize) {
|
var out = new BitArray_1.default();
|
var n = bits.getSize();
|
var mask = (1 << wordSize) - 2;
|
for (var i /*int*/ = 0; i < n; i += wordSize) {
|
var word = 0;
|
for (var j /*int*/ = 0; j < wordSize; j++) {
|
if (i + j >= n || bits.get(i + j)) {
|
word |= 1 << (wordSize - 1 - j);
|
}
|
}
|
if ((word & mask) === mask) {
|
out.appendBits(word & mask, wordSize);
|
i--;
|
}
|
else if ((word & mask) === 0) {
|
out.appendBits(word | 1, wordSize);
|
i--;
|
}
|
else {
|
out.appendBits(word, wordSize);
|
}
|
}
|
return out;
|
};
|
Encoder.totalBitsInLayer = function (layers, compact) {
|
return ((compact ? 88 : 112) + 16 * layers) * layers;
|
};
|
Encoder.DEFAULT_EC_PERCENT = 33; // default minimal percentage of error check words
|
Encoder.DEFAULT_AZTEC_LAYERS = 0;
|
Encoder.MAX_NB_BITS = 32;
|
Encoder.MAX_NB_BITS_COMPACT = 4;
|
Encoder.WORD_SIZE = Int32Array.from([
|
4, 6, 6, 8, 8, 8, 8, 8, 8, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
|
12, 12, 12, 12, 12, 12, 12, 12, 12, 12
|
]);
|
return Encoder;
|
}());
|
exports.default = Encoder;
|
