How to use XRef method in wpt

Best JavaScript code snippet using wpt

obj.js

Source:obj.js Github

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...687 };688 return Catalog;689}();690var XRef = function XRefClosure() {691 function XRef(stream, pdfManager) {692 this.stream = stream;693 this.pdfManager = pdfManager;694 this.entries = [];695 this.xrefstms = Object.create(null);696 this.cache = [];697 this.stats = {698 streamTypes: [],699 fontTypes: []700 };701 }702 XRef.prototype = {703 setStartXRef: function XRef_setStartXRef(startXRef) {704 this.startXRefQueue = [startXRef];705 },706 parse: function XRef_parse(recoveryMode) {707 var trailerDict;708 if (!recoveryMode) {709 trailerDict = this.readXRef();710 } else {711 (0, _util.warn)('Indexing all PDF objects');712 trailerDict = this.indexObjects();713 }714 trailerDict.assignXref(this);715 this.trailer = trailerDict;716 var encrypt = trailerDict.get('Encrypt');717 if ((0, _primitives.isDict)(encrypt)) {718 var ids = trailerDict.get('ID');719 var fileId = ids && ids.length ? ids[0] : '';720 encrypt.suppressEncryption = true;721 this.encrypt = new _crypto.CipherTransformFactory(encrypt, fileId, this.pdfManager.password);722 }723 if (!(this.root = trailerDict.get('Root'))) {724 throw new _util.FormatError('Invalid root reference');725 }726 },727 processXRefTable: function XRef_processXRefTable(parser) {728 if (!('tableState' in this)) {729 this.tableState = {730 entryNum: 0,731 streamPos: parser.lexer.stream.pos,732 parserBuf1: parser.buf1,733 parserBuf2: parser.buf2734 };735 }736 var obj = this.readXRefTable(parser);737 if (!(0, _primitives.isCmd)(obj, 'trailer')) {738 throw new _util.FormatError('Invalid XRef table: could not find trailer dictionary');739 }740 var dict = parser.getObj();741 if (!(0, _primitives.isDict)(dict) && dict.dict) {742 dict = dict.dict;743 }744 if (!(0, _primitives.isDict)(dict)) {745 throw new _util.FormatError('Invalid XRef table: could not parse trailer dictionary');746 }747 delete this.tableState;748 return dict;749 },750 readXRefTable: function XRef_readXRefTable(parser) {751 var stream = parser.lexer.stream;752 var tableState = this.tableState;753 stream.pos = tableState.streamPos;754 parser.buf1 = tableState.parserBuf1;755 parser.buf2 = tableState.parserBuf2;756 var obj;757 while (true) {758 if (!('firstEntryNum' in tableState) || !('entryCount' in tableState)) {759 if ((0, _primitives.isCmd)(obj = parser.getObj(), 'trailer')) {760 break;761 }762 tableState.firstEntryNum = obj;763 tableState.entryCount = parser.getObj();764 }765 var first = tableState.firstEntryNum;766 var count = tableState.entryCount;767 if (!Number.isInteger(first) || !Number.isInteger(count)) {768 throw new _util.FormatError('Invalid XRef table: wrong types in subsection header');769 }770 for (var i = tableState.entryNum; i < count; i++) {771 tableState.streamPos = stream.pos;772 tableState.entryNum = i;773 tableState.parserBuf1 = parser.buf1;774 tableState.parserBuf2 = parser.buf2;775 var entry = {};776 entry.offset = parser.getObj();777 entry.gen = parser.getObj();778 var type = parser.getObj();779 if ((0, _primitives.isCmd)(type, 'f')) {780 entry.free = true;781 } else if ((0, _primitives.isCmd)(type, 'n')) {782 entry.uncompressed = true;783 }784 if (!Number.isInteger(entry.offset) || !Number.isInteger(entry.gen) || !(entry.free || entry.uncompressed)) {785 throw new _util.FormatError('Invalid entry in XRef subsection: ' + first + ', ' + count);786 }787 if (i === 0 && entry.free && first === 1) {788 first = 0;789 }790 if (!this.entries[i + first]) {791 this.entries[i + first] = entry;792 }793 }794 tableState.entryNum = 0;795 tableState.streamPos = stream.pos;796 tableState.parserBuf1 = parser.buf1;797 tableState.parserBuf2 = parser.buf2;798 delete tableState.firstEntryNum;799 delete tableState.entryCount;800 }801 if (this.entries[0] && !this.entries[0].free) {802 throw new _util.FormatError('Invalid XRef table: unexpected first object');803 }804 return obj;805 },806 processXRefStream: function XRef_processXRefStream(stream) {807 if (!('streamState' in this)) {808 var streamParameters = stream.dict;809 var byteWidths = streamParameters.get('W');810 var range = streamParameters.get('Index');811 if (!range) {812 range = [0, streamParameters.get('Size')];813 }814 this.streamState = {815 entryRanges: range,816 byteWidths: byteWidths,817 entryNum: 0,818 streamPos: stream.pos819 };820 }821 this.readXRefStream(stream);822 delete this.streamState;823 return stream.dict;824 },825 readXRefStream: function XRef_readXRefStream(stream) {826 var i, j;827 var streamState = this.streamState;828 stream.pos = streamState.streamPos;829 var byteWidths = streamState.byteWidths;830 var typeFieldWidth = byteWidths[0];831 var offsetFieldWidth = byteWidths[1];832 var generationFieldWidth = byteWidths[2];833 var entryRanges = streamState.entryRanges;834 while (entryRanges.length > 0) {835 var first = entryRanges[0];836 var n = entryRanges[1];837 if (!Number.isInteger(first) || !Number.isInteger(n)) {838 throw new _util.FormatError('Invalid XRef range fields: ' + first + ', ' + n);839 }840 if (!Number.isInteger(typeFieldWidth) || !Number.isInteger(offsetFieldWidth) || !Number.isInteger(generationFieldWidth)) {841 throw new _util.FormatError('Invalid XRef entry fields length: ' + first + ', ' + n);842 }843 for (i = streamState.entryNum; i < n; ++i) {844 streamState.entryNum = i;845 streamState.streamPos = stream.pos;846 var type = 0,847 offset = 0,848 generation = 0;849 for (j = 0; j < typeFieldWidth; ++j) {850 type = type << 8 | stream.getByte();851 }852 if (typeFieldWidth === 0) {853 type = 1;854 }855 for (j = 0; j < offsetFieldWidth; ++j) {856 offset = offset << 8 | stream.getByte();857 }858 for (j = 0; j < generationFieldWidth; ++j) {859 generation = generation << 8 | stream.getByte();860 }861 var entry = {};862 entry.offset = offset;863 entry.gen = generation;864 switch (type) {865 case 0:866 entry.free = true;867 break;868 case 1:869 entry.uncompressed = true;870 break;871 case 2:872 break;873 default:874 throw new _util.FormatError('Invalid XRef entry type: ' + type);875 }876 if (!this.entries[first + i]) {877 this.entries[first + i] = entry;878 }879 }880 streamState.entryNum = 0;881 streamState.streamPos = stream.pos;882 entryRanges.splice(0, 2);883 }884 },885 indexObjects: function XRef_indexObjects() {886 var TAB = 0x9,887 LF = 0xA,888 CR = 0xD,889 SPACE = 0x20;890 var PERCENT = 0x25,891 LT = 0x3C;892 function readToken(data, offset) {893 var token = '',894 ch = data[offset];895 while (ch !== LF && ch !== CR && ch !== LT) {896 if (++offset >= data.length) {897 break;898 }899 token += String.fromCharCode(ch);900 ch = data[offset];901 }902 return token;903 }904 function skipUntil(data, offset, what) {905 var length = what.length,906 dataLength = data.length;907 var skipped = 0;908 while (offset < dataLength) {909 var i = 0;910 while (i < length && data[offset + i] === what[i]) {911 ++i;912 }913 if (i >= length) {914 break;915 }916 offset++;917 skipped++;918 }919 return skipped;920 }921 var objRegExp = /^(\d+)\s+(\d+)\s+obj\b/;922 var endobjRegExp = /\bendobj[\b\s]$/;923 var nestedObjRegExp = /\s+(\d+\s+\d+\s+obj[\b\s])$/;924 var CHECK_CONTENT_LENGTH = 25;925 var trailerBytes = new Uint8Array([116, 114, 97, 105, 108, 101, 114]);926 var startxrefBytes = new Uint8Array([115, 116, 97, 114, 116, 120, 114, 101, 102]);927 var objBytes = new Uint8Array([111, 98, 106]);928 var xrefBytes = new Uint8Array([47, 88, 82, 101, 102]);929 this.entries.length = 0;930 var stream = this.stream;931 stream.pos = 0;932 var buffer = stream.getBytes();933 var position = stream.start,934 length = buffer.length;935 var trailers = [],936 xrefStms = [];937 while (position < length) {938 var ch = buffer[position];939 if (ch === TAB || ch === LF || ch === CR || ch === SPACE) {940 ++position;941 continue;942 }943 if (ch === PERCENT) {944 do {945 ++position;946 if (position >= length) {947 break;948 }949 ch = buffer[position];950 } while (ch !== LF && ch !== CR);951 continue;952 }953 var token = readToken(buffer, position);954 var m;955 if (token.indexOf('xref') === 0 && (token.length === 4 || /\s/.test(token[4]))) {956 position += skipUntil(buffer, position, trailerBytes);957 trailers.push(position);958 position += skipUntil(buffer, position, startxrefBytes);959 } else if (m = objRegExp.exec(token)) {960 if (typeof this.entries[m[1]] === 'undefined') {961 this.entries[m[1]] = {962 offset: position - stream.start,963 gen: m[2] | 0,964 uncompressed: true965 };966 }967 var contentLength = void 0,968 startPos = position + token.length;969 while (startPos < buffer.length) {970 var endPos = startPos + skipUntil(buffer, startPos, objBytes) + 4;971 contentLength = endPos - position;972 var checkPos = Math.max(endPos - CHECK_CONTENT_LENGTH, startPos);973 var tokenStr = (0, _util.bytesToString)(buffer.subarray(checkPos, endPos));974 if (endobjRegExp.test(tokenStr)) {975 break;976 } else {977 var objToken = nestedObjRegExp.exec(tokenStr);978 if (objToken && objToken[1]) {979 (0, _util.warn)('indexObjects: Found new "obj" inside of another "obj", ' + 'caused by missing "endobj" -- trying to recover.');980 contentLength -= objToken[1].length;981 break;982 }983 }984 startPos += contentLength;985 }986 var content = buffer.subarray(position, position + contentLength);987 var xrefTagOffset = skipUntil(content, 0, xrefBytes);988 if (xrefTagOffset < contentLength && content[xrefTagOffset + 5] < 64) {989 xrefStms.push(position - stream.start);990 this.xrefstms[position - stream.start] = 1;991 }992 position += contentLength;993 } else if (token.indexOf('trailer') === 0 && (token.length === 7 || /\s/.test(token[7]))) {994 trailers.push(position);995 position += skipUntil(buffer, position, startxrefBytes);996 } else {997 position += token.length + 1;998 }999 }1000 var i, ii;1001 for (i = 0, ii = xrefStms.length; i < ii; ++i) {1002 this.startXRefQueue.push(xrefStms[i]);1003 this.readXRef(true);1004 }1005 var dict;1006 for (i = 0, ii = trailers.length; i < ii; ++i) {1007 stream.pos = trailers[i];1008 var parser = new _parser.Parser(new _parser.Lexer(stream), true, this, true);1009 var obj = parser.getObj();1010 if (!(0, _primitives.isCmd)(obj, 'trailer')) {1011 continue;1012 }1013 dict = parser.getObj();1014 if (!(0, _primitives.isDict)(dict)) {1015 continue;1016 }1017 if (dict.has('ID')) {1018 return dict;1019 }1020 }1021 if (dict) {1022 return dict;1023 }1024 throw new _util.InvalidPDFException('Invalid PDF structure');1025 },1026 readXRef: function XRef_readXRef(recoveryMode) {1027 var stream = this.stream;1028 var startXRefParsedCache = Object.create(null);1029 try {1030 while (this.startXRefQueue.length) {1031 var startXRef = this.startXRefQueue[0];1032 if (startXRefParsedCache[startXRef]) {1033 (0, _util.warn)('readXRef - skipping XRef table since it was already parsed.');1034 this.startXRefQueue.shift();1035 continue;1036 }1037 startXRefParsedCache[startXRef] = true;1038 stream.pos = startXRef + stream.start;1039 var parser = new _parser.Parser(new _parser.Lexer(stream), true, this);1040 var obj = parser.getObj();...

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colorspace_spec.js

Source:colorspace_spec.js Github

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1/**2 * @licstart The following is the entire license notice for the3 * Javascript code in this page4 *5 * Copyright 2017 Mozilla Foundation6 *7 * Licensed under the Apache License, Version 2.0 (the "License");8 * you may not use this file except in compliance with the License.9 * You may obtain a copy of the License at10 *11 * http://www.apache.org/licenses/LICENSE-2.012 *13 * Unless required by applicable law or agreed to in writing, software14 * distributed under the License is distributed on an "AS IS" BASIS,15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.16 * See the License for the specific language governing permissions and17 * limitations under the License.18 *19 * @licend The above is the entire license notice for the20 * Javascript code in this page21 */22'use strict';23var _primitives = require('../../core/primitives');24var _stream = require('../../core/stream');25var _colorspace = require('../../core/colorspace');26var _function = require('../../core/function');27var _test_utils = require('./test_utils');28describe('colorspace', function () {29 describe('ColorSpace', function () {30 it('should be true if decode is not an array', function () {31 expect(_colorspace.ColorSpace.isDefaultDecode('string', 0)).toBeTruthy();32 });33 it('should be true if length of decode array is not correct', function () {34 expect(_colorspace.ColorSpace.isDefaultDecode([0], 1)).toBeTruthy();35 expect(_colorspace.ColorSpace.isDefaultDecode([0, 1, 0], 1)).toBeTruthy();36 });37 it('should be true if decode map matches the default decode map', function () {38 expect(_colorspace.ColorSpace.isDefaultDecode([], 0)).toBeTruthy();39 expect(_colorspace.ColorSpace.isDefaultDecode([0, 0], 1)).toBeFalsy();40 expect(_colorspace.ColorSpace.isDefaultDecode([0, 1], 1)).toBeTruthy();41 expect(_colorspace.ColorSpace.isDefaultDecode([0, 1, 0, 1, 0, 1], 3)).toBeTruthy();42 expect(_colorspace.ColorSpace.isDefaultDecode([0, 1, 0, 1, 1, 1], 3)).toBeFalsy();43 expect(_colorspace.ColorSpace.isDefaultDecode([0, 1, 0, 1, 0, 1, 0, 1], 4)).toBeTruthy();44 expect(_colorspace.ColorSpace.isDefaultDecode([1, 0, 0, 1, 0, 1, 0, 1], 4)).toBeFalsy();45 });46 });47 describe('DeviceGrayCS', function () {48 it('should handle the case when cs is a Name object', function () {49 var cs = _primitives.Name.get('DeviceGray');50 var xref = new _test_utils.XRefMock([{51 ref: new _primitives.Ref(10, 0),52 data: new _primitives.Dict()53 }]);54 var res = new _primitives.Dict();55 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });56 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);57 var testSrc = new Uint8Array([27, 125, 250, 131]);58 var testDest = new Uint8Array(4 * 4 * 3);59 var expectedDest = new Uint8Array([27, 27, 27, 27, 27, 27, 125, 125, 125, 125, 125, 125, 27, 27, 27, 27, 27, 27, 125, 125, 125, 125, 125, 125, 250, 250, 250, 250, 250, 250, 131, 131, 131, 131, 131, 131, 250, 250, 250, 250, 250, 250, 131, 131, 131, 131, 131, 131]);60 colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);61 expect(colorSpace.getRgb(new Float32Array([0.1]), 0)).toEqual(new Uint8Array([25, 25, 25]));62 expect(colorSpace.getOutputLength(2, 0)).toEqual(6);63 expect(colorSpace.isPassthrough(8)).toBeFalsy();64 expect(testDest).toEqual(expectedDest);65 });66 it('should handle the case when cs is an indirect object', function () {67 var cs = new _primitives.Ref(10, 0);68 var xref = new _test_utils.XRefMock([{69 ref: cs,70 data: _primitives.Name.get('DeviceGray')71 }]);72 var res = new _primitives.Dict();73 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });74 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);75 var testSrc = new Uint8Array([27, 125, 250, 131]);76 var testDest = new Uint8Array(3 * 3 * 3);77 var expectedDest = new Uint8Array([27, 27, 27, 27, 27, 27, 125, 125, 125, 27, 27, 27, 27, 27, 27, 125, 125, 125, 250, 250, 250, 250, 250, 250, 131, 131, 131]);78 colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);79 expect(colorSpace.getRgb(new Float32Array([0.2]), 0)).toEqual(new Uint8Array([51, 51, 51]));80 expect(colorSpace.getOutputLength(3, 1)).toEqual(12);81 expect(colorSpace.isPassthrough(8)).toBeFalsy();82 expect(testDest).toEqual(expectedDest);83 });84 });85 describe('DeviceRgbCS', function () {86 it('should handle the case when cs is a Name object', function () {87 var cs = _primitives.Name.get('DeviceRGB');88 var xref = new _test_utils.XRefMock([{89 ref: new _primitives.Ref(10, 0),90 data: new _primitives.Dict()91 }]);92 var res = new _primitives.Dict();93 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });94 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);95 var testSrc = new Uint8Array([27, 125, 250, 131, 139, 140, 111, 25, 198, 21, 147, 255]);96 var testDest = new Uint8Array(4 * 4 * 3);97 var expectedDest = new Uint8Array([27, 125, 250, 27, 125, 250, 131, 139, 140, 131, 139, 140, 27, 125, 250, 27, 125, 250, 131, 139, 140, 131, 139, 140, 111, 25, 198, 111, 25, 198, 21, 147, 255, 21, 147, 255, 111, 25, 198, 111, 25, 198, 21, 147, 255, 21, 147, 255]);98 colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);99 expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3]), 0)).toEqual(new Uint8Array([25, 51, 76]));100 expect(colorSpace.getOutputLength(4, 0)).toEqual(4);101 expect(colorSpace.isPassthrough(8)).toBeTruthy();102 expect(testDest).toEqual(expectedDest);103 });104 it('should handle the case when cs is an indirect object', function () {105 var cs = new _primitives.Ref(10, 0);106 var xref = new _test_utils.XRefMock([{107 ref: cs,108 data: _primitives.Name.get('DeviceRGB')109 }]);110 var res = new _primitives.Dict();111 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });112 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);113 var testSrc = new Uint8Array([27, 125, 250, 131, 139, 140, 111, 25, 198, 21, 147, 255]);114 var testDest = new Uint8Array(3 * 3 * 3);115 var expectedDest = new Uint8Array([27, 125, 250, 27, 125, 250, 131, 139, 140, 27, 125, 250, 27, 125, 250, 131, 139, 140, 111, 25, 198, 111, 25, 198, 21, 147, 255]);116 colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);117 expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3]), 0)).toEqual(new Uint8Array([25, 51, 76]));118 expect(colorSpace.getOutputLength(4, 1)).toEqual(5);119 expect(colorSpace.isPassthrough(8)).toBeTruthy();120 expect(testDest).toEqual(expectedDest);121 });122 });123 describe('DeviceCmykCS', function () {124 it('should handle the case when cs is a Name object', function () {125 var cs = _primitives.Name.get('DeviceCMYK');126 var xref = new _test_utils.XRefMock([{127 ref: new _primitives.Ref(10, 0),128 data: new _primitives.Dict()129 }]);130 var res = new _primitives.Dict();131 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });132 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);133 var testSrc = new Uint8Array([27, 125, 250, 128, 131, 139, 140, 45, 111, 25, 198, 78, 21, 147, 255, 69]);134 var testDest = new Uint8Array(4 * 4 * 3);135 var expectedDest = new Uint8Array([135, 80, 18, 135, 80, 18, 113, 102, 97, 113, 102, 97, 135, 80, 18, 135, 80, 18, 113, 102, 97, 113, 102, 97, 112, 143, 75, 112, 143, 75, 188, 98, 27, 188, 98, 27, 112, 143, 75, 112, 143, 75, 188, 98, 27, 188, 98, 27]);136 colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);137 expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3, 1]), 0)).toEqual(new Uint8Array([31, 27, 20]));138 expect(colorSpace.getOutputLength(4, 0)).toEqual(3);139 expect(colorSpace.isPassthrough(8)).toBeFalsy();140 expect(testDest).toEqual(expectedDest);141 });142 it('should handle the case when cs is an indirect object', function () {143 var cs = new _primitives.Ref(10, 0);144 var xref = new _test_utils.XRefMock([{145 ref: cs,146 data: _primitives.Name.get('DeviceCMYK')147 }]);148 var res = new _primitives.Dict();149 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });150 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);151 var testSrc = new Uint8Array([27, 125, 250, 128, 131, 139, 140, 45, 111, 25, 198, 78, 21, 147, 255, 69]);152 var testDest = new Uint8Array(3 * 3 * 3);153 var expectedDest = new Uint8Array([135, 80, 18, 135, 80, 18, 113, 102, 97, 135, 80, 18, 135, 80, 18, 113, 102, 97, 112, 143, 75, 112, 143, 75, 188, 98, 27]);154 colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);155 expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3, 1]), 0)).toEqual(new Uint8Array([31, 27, 20]));156 expect(colorSpace.getOutputLength(4, 1)).toEqual(4);157 expect(colorSpace.isPassthrough(8)).toBeFalsy();158 expect(testDest).toEqual(expectedDest);159 });160 });161 describe('CalGrayCS', function () {162 it('should handle the case when cs is an array', function () {163 var params = new _primitives.Dict();164 params.set('WhitePoint', [1, 1, 1]);165 params.set('BlackPoint', [0, 0, 0]);166 params.set('Gamma', 2.0);167 var cs = [_primitives.Name.get('CalGray'), params];168 var xref = new _test_utils.XRefMock([{169 ref: new _primitives.Ref(10, 0),170 data: new _primitives.Dict()171 }]);172 var res = new _primitives.Dict();173 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });174 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);175 var testSrc = new Uint8Array([27, 125, 250, 131]);176 var testDest = new Uint8Array(4 * 4 * 3);177 var expectedDest = new Uint8Array([25, 25, 25, 25, 25, 25, 143, 143, 143, 143, 143, 143, 25, 25, 25, 25, 25, 25, 143, 143, 143, 143, 143, 143, 251, 251, 251, 251, 251, 251, 148, 148, 148, 148, 148, 148, 251, 251, 251, 251, 251, 251, 148, 148, 148, 148, 148, 148]);178 colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);179 expect(colorSpace.getRgb(new Float32Array([1.0]), 0)).toEqual(new Uint8Array([255, 255, 255]));180 expect(colorSpace.getOutputLength(4, 0)).toEqual(12);181 expect(colorSpace.isPassthrough(8)).toBeFalsy();182 expect(testDest).toEqual(expectedDest);183 });184 });185 describe('CalRGBCS', function () {186 it('should handle the case when cs is an array', function () {187 var params = new _primitives.Dict();188 params.set('WhitePoint', [1, 1, 1]);189 params.set('BlackPoint', [0, 0, 0]);190 params.set('Gamma', [1, 1, 1]);191 params.set('Matrix', [1, 0, 0, 0, 1, 0, 0, 0, 1]);192 var cs = [_primitives.Name.get('CalRGB'), params];193 var xref = new _test_utils.XRefMock([{194 ref: new _primitives.Ref(10, 0),195 data: new _primitives.Dict()196 }]);197 var res = new _primitives.Dict();198 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });199 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);200 var testSrc = new Uint8Array([27, 125, 250, 131, 139, 140, 111, 25, 198, 21, 147, 255]);201 var testDest = new Uint8Array(3 * 3 * 3);202 var expectedDest = new Uint8Array([0, 238, 255, 0, 238, 255, 185, 196, 195, 0, 238, 255, 0, 238, 255, 185, 196, 195, 235, 0, 243, 235, 0, 243, 0, 255, 255]);203 colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);204 expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3]), 0)).toEqual(new Uint8Array([0, 147, 151]));205 expect(colorSpace.getOutputLength(4, 0)).toEqual(4);206 expect(colorSpace.isPassthrough(8)).toBeFalsy();207 expect(testDest).toEqual(expectedDest);208 });209 });210 describe('LabCS', function () {211 it('should handle the case when cs is an array', function () {212 var params = new _primitives.Dict();213 params.set('WhitePoint', [1, 1, 1]);214 params.set('BlackPoint', [0, 0, 0]);215 params.set('Range', [-100, 100, -100, 100]);216 var cs = [_primitives.Name.get('Lab'), params];217 var xref = new _test_utils.XRefMock([{218 ref: new _primitives.Ref(10, 0),219 data: new _primitives.Dict()220 }]);221 var res = new _primitives.Dict();222 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });223 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);224 var testSrc = new Uint8Array([27, 25, 50, 31, 19, 40, 11, 25, 98, 21, 47, 55]);225 var testDest = new Uint8Array(3 * 3 * 3);226 var expectedDest = new Uint8Array([0, 49, 101, 0, 49, 101, 0, 53, 116, 0, 49, 101, 0, 49, 101, 0, 53, 116, 0, 40, 39, 0, 40, 39, 0, 43, 90]);227 colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);228 expect(colorSpace.getRgb([55, 25, 35], 0)).toEqual(new Uint8Array([188, 99, 61]));229 expect(colorSpace.getOutputLength(4, 0)).toEqual(4);230 expect(colorSpace.isPassthrough(8)).toBeFalsy();231 expect(colorSpace.isDefaultDecode([0, 1])).toBeTruthy();232 expect(testDest).toEqual(expectedDest);233 });234 });235 describe('IndexedCS', function () {236 it('should handle the case when cs is an array', function () {237 var lookup = new Uint8Array([23, 155, 35, 147, 69, 93, 255, 109, 70]);238 var cs = [_primitives.Name.get('Indexed'), _primitives.Name.get('DeviceRGB'), 2, lookup];239 var xref = new _test_utils.XRefMock([{240 ref: new _primitives.Ref(10, 0),241 data: new _primitives.Dict()242 }]);243 var res = new _primitives.Dict();244 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });245 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);246 var testSrc = new Uint8Array([2, 2, 0, 1]);247 var testDest = new Uint8Array(3 * 3 * 3);248 var expectedDest = new Uint8Array([255, 109, 70, 255, 109, 70, 255, 109, 70, 255, 109, 70, 255, 109, 70, 255, 109, 70, 23, 155, 35, 23, 155, 35, 147, 69, 93]);249 colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);250 expect(colorSpace.getRgb([2], 0)).toEqual(new Uint8Array([255, 109, 70]));251 expect(colorSpace.isPassthrough(8)).toBeFalsy();252 expect(colorSpace.isDefaultDecode([0, 1])).toBeTruthy();253 expect(testDest).toEqual(expectedDest);254 });255 });256 describe('AlternateCS', function () {257 it('should handle the case when cs is an array', function () {258 var fnDict = new _primitives.Dict();259 fnDict.set('FunctionType', 4);260 fnDict.set('Domain', [0.0, 1.0]);261 fnDict.set('Range', [0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0]);262 fnDict.set('Length', 58);263 var fn = new _stream.StringStream('{ dup 0.84 mul ' + 'exch 0.00 exch ' + 'dup 0.44 mul ' + 'exch 0.21 mul }');264 fn = new _stream.Stream(fn.bytes, 0, 58, fnDict);265 var fnRef = new _primitives.Ref(10, 0);266 var cs = [_primitives.Name.get('Separation'), _primitives.Name.get('LogoGreen'), _primitives.Name.get('DeviceCMYK'), fnRef];267 var xref = new _test_utils.XRefMock([{268 ref: fnRef,269 data: fn270 }]);271 var res = new _primitives.Dict();272 var pdfFunctionFactory = new _function.PDFFunctionFactory({ xref: xref });273 var colorSpace = _colorspace.ColorSpace.parse(cs, xref, res, pdfFunctionFactory);274 var testSrc = new Uint8Array([27, 25, 50, 31]);275 var testDest = new Uint8Array(3 * 3 * 3);276 var expectedDest = new Uint8Array([227, 243, 242, 227, 243, 242, 228, 243, 242, 227, 243, 242, 227, 243, 242, 228, 243, 242, 203, 233, 229, 203, 233, 229, 222, 241, 239]);277 colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);278 expect(colorSpace.getRgb([0.1], 0)).toEqual(new Uint8Array([228, 243, 241]));279 expect(colorSpace.isPassthrough(8)).toBeFalsy();280 expect(colorSpace.isDefaultDecode([0, 1])).toBeTruthy();281 expect(testDest).toEqual(expectedDest);282 });283 });...

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primitives.js

Source:primitives.js Github

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1/**2 * @licstart The following is the entire license notice for the3 * Javascript code in this page4 *5 * Copyright 2017 Mozilla Foundation6 *7 * Licensed under the Apache License, Version 2.0 (the "License");8 * you may not use this file except in compliance with the License.9 * You may obtain a copy of the License at10 *11 * http://www.apache.org/licenses/LICENSE-2.012 *13 * Unless required by applicable law or agreed to in writing, software14 * distributed under the License is distributed on an "AS IS" BASIS,15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.16 * See the License for the specific language governing permissions and17 * limitations under the License.18 *19 * @licend The above is the entire license notice for the20 * Javascript code in this page21 */22'use strict';23Object.defineProperty(exports, "__esModule", {24 value: true25});26var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };27var EOF = {};28var Name = function NameClosure() {29 function Name(name) {30 this.name = name;31 }32 Name.prototype = {};33 var nameCache = Object.create(null);34 Name.get = function Name_get(name) {35 var nameValue = nameCache[name];36 return nameValue ? nameValue : nameCache[name] = new Name(name);37 };38 return Name;39}();40var Cmd = function CmdClosure() {41 function Cmd(cmd) {42 this.cmd = cmd;43 }44 Cmd.prototype = {};45 var cmdCache = Object.create(null);46 Cmd.get = function Cmd_get(cmd) {47 var cmdValue = cmdCache[cmd];48 return cmdValue ? cmdValue : cmdCache[cmd] = new Cmd(cmd);49 };50 return Cmd;51}();52var Dict = function DictClosure() {53 var nonSerializable = function nonSerializableClosure() {54 return nonSerializable;55 };56 function Dict(xref) {57 this._map = Object.create(null);58 this.xref = xref;59 this.objId = null;60 this.suppressEncryption = false;61 this.__nonSerializable__ = nonSerializable;62 }63 Dict.prototype = {64 assignXref: function Dict_assignXref(newXref) {65 this.xref = newXref;66 },67 get: function Dict_get(key1, key2, key3) {68 var value;69 var xref = this.xref,70 suppressEncryption = this.suppressEncryption;71 if (typeof (value = this._map[key1]) !== 'undefined' || key1 in this._map || typeof key2 === 'undefined') {72 return xref ? xref.fetchIfRef(value, suppressEncryption) : value;73 }74 if (typeof (value = this._map[key2]) !== 'undefined' || key2 in this._map || typeof key3 === 'undefined') {75 return xref ? xref.fetchIfRef(value, suppressEncryption) : value;76 }77 value = this._map[key3] || null;78 return xref ? xref.fetchIfRef(value, suppressEncryption) : value;79 },80 getAsync: function Dict_getAsync(key1, key2, key3) {81 var value;82 var xref = this.xref,83 suppressEncryption = this.suppressEncryption;84 if (typeof (value = this._map[key1]) !== 'undefined' || key1 in this._map || typeof key2 === 'undefined') {85 if (xref) {86 return xref.fetchIfRefAsync(value, suppressEncryption);87 }88 return Promise.resolve(value);89 }90 if (typeof (value = this._map[key2]) !== 'undefined' || key2 in this._map || typeof key3 === 'undefined') {91 if (xref) {92 return xref.fetchIfRefAsync(value, suppressEncryption);93 }94 return Promise.resolve(value);95 }96 value = this._map[key3] || null;97 if (xref) {98 return xref.fetchIfRefAsync(value, suppressEncryption);99 }100 return Promise.resolve(value);101 },102 getArray: function Dict_getArray(key1, key2, key3) {103 var value = this.get(key1, key2, key3);104 var xref = this.xref,105 suppressEncryption = this.suppressEncryption;106 if (!Array.isArray(value) || !xref) {107 return value;108 }109 value = value.slice();110 for (var i = 0, ii = value.length; i < ii; i++) {111 if (!isRef(value[i])) {112 continue;113 }114 value[i] = xref.fetch(value[i], suppressEncryption);115 }116 return value;117 },118 getRaw: function Dict_getRaw(key) {119 return this._map[key];120 },121 getKeys: function Dict_getKeys() {122 return Object.keys(this._map);123 },124 set: function Dict_set(key, value) {125 this._map[key] = value;126 },127 has: function Dict_has(key) {128 return key in this._map;129 },130 forEach: function Dict_forEach(callback) {131 for (var key in this._map) {132 callback(key, this.get(key));133 }134 }135 };136 Dict.empty = new Dict(null);137 Dict.merge = function (xref, dictArray) {138 var mergedDict = new Dict(xref);139 for (var i = 0, ii = dictArray.length; i < ii; i++) {140 var dict = dictArray[i];141 if (!isDict(dict)) {142 continue;143 }144 for (var keyName in dict._map) {145 if (mergedDict._map[keyName] !== undefined) {146 continue;147 }148 mergedDict._map[keyName] = dict._map[keyName];149 }150 }151 return mergedDict;152 };153 return Dict;154}();155var Ref = function RefClosure() {156 function Ref(num, gen) {157 this.num = num;158 this.gen = gen;159 }160 Ref.prototype = {161 toString: function Ref_toString() {162 var str = this.num + 'R';163 if (this.gen !== 0) {164 str += this.gen;165 }166 return str;167 }168 };169 return Ref;170}();171var RefSet = function RefSetClosure() {172 function RefSet() {173 this.dict = Object.create(null);174 }175 RefSet.prototype = {176 has: function RefSet_has(ref) {177 return ref.toString() in this.dict;178 },179 put: function RefSet_put(ref) {180 this.dict[ref.toString()] = true;181 },182 remove: function RefSet_remove(ref) {183 delete this.dict[ref.toString()];184 }185 };186 return RefSet;187}();188var RefSetCache = function RefSetCacheClosure() {189 function RefSetCache() {190 this.dict = Object.create(null);191 }192 RefSetCache.prototype = {193 get: function RefSetCache_get(ref) {194 return this.dict[ref.toString()];195 },196 has: function RefSetCache_has(ref) {197 return ref.toString() in this.dict;198 },199 put: function RefSetCache_put(ref, obj) {200 this.dict[ref.toString()] = obj;201 },202 putAlias: function RefSetCache_putAlias(ref, aliasRef) {203 this.dict[ref.toString()] = this.get(aliasRef);204 },205 forEach: function RefSetCache_forEach(fn, thisArg) {206 for (var i in this.dict) {207 fn.call(thisArg, this.dict[i]);208 }209 },210 clear: function RefSetCache_clear() {211 this.dict = Object.create(null);212 }213 };214 return RefSetCache;215}();216function isEOF(v) {217 return v === EOF;218}219function isName(v, name) {220 return v instanceof Name && (name === undefined || v.name === name);221}222function isCmd(v, cmd) {223 return v instanceof Cmd && (cmd === undefined || v.cmd === cmd);224}225function isDict(v, type) {226 return v instanceof Dict && (type === undefined || isName(v.get('Type'), type));227}228function isRef(v) {229 return v instanceof Ref;230}231function isRefsEqual(v1, v2) {232 return v1.num === v2.num && v1.gen === v2.gen;233}234function isStream(v) {235 return (typeof v === 'undefined' ? 'undefined' : _typeof(v)) === 'object' && v !== null && v.getBytes !== undefined;236}237exports.EOF = EOF;238exports.Cmd = Cmd;239exports.Dict = Dict;240exports.Name = Name;241exports.Ref = Ref;242exports.RefSet = RefSet;243exports.RefSetCache = RefSetCache;244exports.isEOF = isEOF;245exports.isCmd = isCmd;246exports.isDict = isDict;247exports.isName = isName;248exports.isRef = isRef;249exports.isRefsEqual = isRefsEqual;...

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Using AI Code Generation

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1var wptools = require('wptools');2var page = wptools.page('Barack Obama');3page.get(function(err, resp) {4 console.log(resp);5 console.log(resp.xref);6 console.log(resp.xref.wikipedia.en);7 console.log(resp.xref.wikipedia.en.url);8 console.log(resp.xref.wikipedia.en.title);9 console.log(resp.xref.wikipedia.en.pageid);10 console.log(resp.xref.wikipedia.en.extract);11 console.log(resp.xref.wikipedia.en.wikidata);12 console.log(resp.xref.wikipedia.en.wikidata.url);13 console.log(resp.xref.wikipedia.en.wikidata.title);14 console.log(resp.xref.wikipedia.en.wikidata.pageid);15 console.log(resp.xref.wikipedia.en.wikidata.extract);16});

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Using AI Code Generation

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1var wptools = require('wptools');2var page = wptools.page('Albert Einstein');3page.get(function(err, resp) {4 console.log(resp);5});6var wptools = require('wptools');7var page = wptools.page('Albert Einstein');8page.get(function

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Using AI Code Generation

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1var wptools = require('wptools');2var page = wptools.page('Barack Obama');3page.get(function(err, resp) {4 console.log(resp.data.imageinfo[0].url);5});6var wptools = require('wptools');7var page = wptools.page('Barack Obama');8page.get(function(err, resp) {9 console.log(resp.data.imageinfo[0].url);10});11var wptools = require('wptools');12var page = wptools.page('Barack Obama');13page.get(function(err, resp) {14 console.log(resp.data.imageinfo[0].url);15});16var wptools = require('wptools');17var page = wptools.page('Barack Obama');18page.get(function(err, resp) {19 console.log(resp.data.imageinfo[0].url);20});21var wptools = require('wptools');22var page = wptools.page('Barack Obama');23page.get(function(err, resp) {24 console.log(resp.data.imageinfo[0].url);25});26var wptools = require('wptools');27var page = wptools.page('Barack Obama');28page.get(function(err, resp) {29 console.log(resp.data.imageinfo[0].url);30});31var wptools = require('wptools');32var page = wptools.page('Barack Obama');33page.get(function(err, resp) {34 console.log(resp.data.imageinfo[0].url);35});36var wptools = require('wptools');37var page = wptools.page('Barack Obama');38page.get(function(err, resp) {39 console.log(resp.data.imageinfo[0].url);40});

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Using AI Code Generation

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1var wptools = require('wptools');2var wiki = wptools.page('Barack Obama');3wiki.get(function(err, resp) {4 console.log(resp.data);5 console.log(resp.data.xref);6});7var wptools = require('wptools');8var wiki = wptools.page('Barack Obama');9wiki.get(function(err, resp) {10 console.log(resp.data);11 console.log(resp.data.xref);12});13var wptools = require('wptools');14var wiki = wptools.page('Barack Obama');15wiki.get(function(err, resp) {16 console.log(resp.data);17 console.log(resp.data.xref);18});19var wptools = require('wptools');20var wiki = wptools.page('Barack Obama');21wiki.get(function(err, resp) {22 console.log(resp.data);23 console.log(resp.data.xref);24});25var wptools = require('wptools');26var wiki = wptools.page('Barack Obama');27wiki.get(function(err, resp) {28 console.log(resp.data);29 console.log(resp.data.xref);30});31var wptools = require('wptools');32var wiki = wptools.page('Barack Obama');33wiki.get(function(err, resp) {34 console.log(resp.data);35 console.log(resp.data.xref);36});37var wptools = require('wptools');38var wiki = wptools.page('Barack Obama');39wiki.get(function(err, resp) {40 console.log(resp.data);41 console.log(resp

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Using AI Code Generation

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1var wpt = require('wpt-api');2var wpt = new WebPageTest('www.webpagetest.org', 'A.9e3b7f8b8f2b2c4d4e4c4c4e4e4c4c4e4');3wpt.runTest('www.google.com', {4}, function(err, data) {5 if (err) return console.log(err);6 console.log('Test ID: %s', data.data.testId);7 console.log('Test status: %s', data.data.statusText);8 console.log('Test URL: %s', data.data.userUrl);9 console.log('Test results: %s', data.data.summary);10});11var wpt = require('wpt-api');12var wpt = new WebPageTest('www.webpagetest.org', 'A.9e3b7f8b8f2b2c4d4e4c4c4e4e4c4c4e4');13wpt.runTest('www.google.com', {14}, function(err, data) {15 if (err) return console.log(err);16 console.log('Test ID: %s', data.testId);17 console.log('Test status: %s', data.statusText);18 console.log('Test URL: %s', data.userUrl);19 console.log('Test results: %s', data.summary);20});

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