"use strict";
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/*
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* Copyright 2007 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.DataMaskValues = void 0;
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var DataMaskValues;
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(function (DataMaskValues) {
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DataMaskValues[DataMaskValues["DATA_MASK_000"] = 0] = "DATA_MASK_000";
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DataMaskValues[DataMaskValues["DATA_MASK_001"] = 1] = "DATA_MASK_001";
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DataMaskValues[DataMaskValues["DATA_MASK_010"] = 2] = "DATA_MASK_010";
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DataMaskValues[DataMaskValues["DATA_MASK_011"] = 3] = "DATA_MASK_011";
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DataMaskValues[DataMaskValues["DATA_MASK_100"] = 4] = "DATA_MASK_100";
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DataMaskValues[DataMaskValues["DATA_MASK_101"] = 5] = "DATA_MASK_101";
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DataMaskValues[DataMaskValues["DATA_MASK_110"] = 6] = "DATA_MASK_110";
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DataMaskValues[DataMaskValues["DATA_MASK_111"] = 7] = "DATA_MASK_111";
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})(DataMaskValues = exports.DataMaskValues || (exports.DataMaskValues = {}));
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/**
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* <p>Encapsulates data masks for the data bits in a QR code, per ISO 18004:2006 6.8. Implementations
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* of this class can un-mask a raw BitMatrix. For simplicity, they will unmask the entire BitMatrix,
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* including areas used for finder patterns, timing patterns, etc. These areas should be unused
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* after the point they are unmasked anyway.</p>
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*
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* <p>Note that the diagram in section 6.8.1 is misleading since it indicates that i is column position
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* and j is row position. In fact, as the text says, i is row position and j is column position.</p>
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*
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* @author Sean Owen
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*/
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var DataMask = /** @class */ (function () {
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// See ISO 18004:2006 6.8.1
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function DataMask(value, isMasked) {
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this.value = value;
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this.isMasked = isMasked;
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}
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// End of enum constants.
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/**
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* <p>Implementations of this method reverse the data masking process applied to a QR Code and
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* make its bits ready to read.</p>
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*
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* @param bits representation of QR Code bits
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* @param dimension dimension of QR Code, represented by bits, being unmasked
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*/
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DataMask.prototype.unmaskBitMatrix = function (bits, dimension /*int*/) {
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for (var i = 0; i < dimension; i++) {
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for (var j = 0; j < dimension; j++) {
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if (this.isMasked(i, j)) {
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bits.flip(j, i);
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}
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}
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}
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};
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DataMask.values = new Map([
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/**
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* 000: mask bits for which (x + y) mod 2 == 0
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*/
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[DataMaskValues.DATA_MASK_000, new DataMask(DataMaskValues.DATA_MASK_000, function (i /*int*/, j /*int*/) { return ((i + j) & 0x01) === 0; })],
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/**
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* 001: mask bits for which x mod 2 == 0
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*/
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[DataMaskValues.DATA_MASK_001, new DataMask(DataMaskValues.DATA_MASK_001, function (i /*int*/, j /*int*/) { return (i & 0x01) === 0; })],
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/**
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* 010: mask bits for which y mod 3 == 0
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*/
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[DataMaskValues.DATA_MASK_010, new DataMask(DataMaskValues.DATA_MASK_010, function (i /*int*/, j /*int*/) { return j % 3 === 0; })],
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/**
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* 011: mask bits for which (x + y) mod 3 == 0
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*/
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[DataMaskValues.DATA_MASK_011, new DataMask(DataMaskValues.DATA_MASK_011, function (i /*int*/, j /*int*/) { return (i + j) % 3 === 0; })],
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/**
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* 100: mask bits for which (x/2 + y/3) mod 2 == 0
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*/
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[DataMaskValues.DATA_MASK_100, new DataMask(DataMaskValues.DATA_MASK_100, function (i /*int*/, j /*int*/) { return ((Math.floor(i / 2) + Math.floor(j / 3)) & 0x01) === 0; })],
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/**
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* 101: mask bits for which xy mod 2 + xy mod 3 == 0
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* equivalently, such that xy mod 6 == 0
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*/
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[DataMaskValues.DATA_MASK_101, new DataMask(DataMaskValues.DATA_MASK_101, function (i /*int*/, j /*int*/) { return (i * j) % 6 === 0; })],
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/**
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* 110: mask bits for which (xy mod 2 + xy mod 3) mod 2 == 0
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* equivalently, such that xy mod 6 < 3
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*/
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[DataMaskValues.DATA_MASK_110, new DataMask(DataMaskValues.DATA_MASK_110, function (i /*int*/, j /*int*/) { return ((i * j) % 6) < 3; })],
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/**
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* 111: mask bits for which ((x+y)mod 2 + xy mod 3) mod 2 == 0
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* equivalently, such that (x + y + xy mod 3) mod 2 == 0
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*/
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[DataMaskValues.DATA_MASK_111, new DataMask(DataMaskValues.DATA_MASK_111, function (i /*int*/, j /*int*/) { return ((i + j + ((i * j) % 3)) & 0x01) === 0; })],
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]);
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return DataMask;
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}());
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exports.default = DataMask;
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