| /** |
| * @licstart The following is the entire license notice for the |
| * Javascript code in this page |
| * |
| * Copyright 2020 Mozilla Foundation |
| * |
| * 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. |
| * |
| * @licend The above is the entire license notice for the |
| * Javascript code in this page |
| */ |
| "use strict"; |
| |
| Object.defineProperty(exports, "__esModule", { |
| value: true |
| }); |
| exports.getFontType = getFontType; |
| exports.IdentityToUnicodeMap = exports.ToUnicodeMap = exports.FontFlags = exports.Font = exports.ErrorFont = exports.SEAC_ANALYSIS_ENABLED = void 0; |
| |
| var _util = require("../shared/util.js"); |
| |
| var _cff_parser = require("./cff_parser.js"); |
| |
| var _glyphlist = require("./glyphlist.js"); |
| |
| var _encodings = require("./encodings.js"); |
| |
| var _standard_fonts = require("./standard_fonts.js"); |
| |
| var _unicode = require("./unicode.js"); |
| |
| var _core_utils = require("./core_utils.js"); |
| |
| var _font_renderer = require("./font_renderer.js"); |
| |
| var _cmap = require("./cmap.js"); |
| |
| var _stream = require("./stream.js"); |
| |
| var _type1_parser = require("./type1_parser.js"); |
| |
| const PRIVATE_USE_AREAS = [[0xe000, 0xf8ff], [0x100000, 0x10fffd]]; |
| var PDF_GLYPH_SPACE_UNITS = 1000; |
| var SEAC_ANALYSIS_ENABLED = true; |
| exports.SEAC_ANALYSIS_ENABLED = SEAC_ANALYSIS_ENABLED; |
| const EXPORT_DATA_PROPERTIES = ["ascent", "bbox", "black", "bold", "charProcOperatorList", "composite", "data", "defaultVMetrics", "defaultWidth", "descent", "fallbackName", "fontMatrix", "fontType", "isMonospace", "isSerifFont", "isType3Font", "italic", "loadedName", "mimetype", "missingFile", "name", "remeasure", "subtype", "type", "vertical"]; |
| const EXPORT_DATA_EXTRA_PROPERTIES = ["cMap", "defaultEncoding", "differences", "isSymbolicFont", "seacMap", "toFontChar", "toUnicode", "vmetrics", "widths"]; |
| var FontFlags = { |
| FixedPitch: 1, |
| Serif: 2, |
| Symbolic: 4, |
| Script: 8, |
| Nonsymbolic: 32, |
| Italic: 64, |
| AllCap: 65536, |
| SmallCap: 131072, |
| ForceBold: 262144 |
| }; |
| exports.FontFlags = FontFlags; |
| var MacStandardGlyphOrdering = [".notdef", ".null", "nonmarkingreturn", "space", "exclam", "quotedbl", "numbersign", "dollar", "percent", "ampersand", "quotesingle", "parenleft", "parenright", "asterisk", "plus", "comma", "hyphen", "period", "slash", "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "colon", "semicolon", "less", "equal", "greater", "question", "at", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "bracketleft", "backslash", "bracketright", "asciicircum", "underscore", "grave", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "braceleft", "bar", "braceright", "asciitilde", "Adieresis", "Aring", "Ccedilla", "Eacute", "Ntilde", "Odieresis", "Udieresis", "aacute", "agrave", "acircumflex", "adieresis", "atilde", "aring", "ccedilla", "eacute", "egrave", "ecircumflex", "edieresis", "iacute", "igrave", "icircumflex", "idieresis", "ntilde", "oacute", "ograve", "ocircumflex", "odieresis", "otilde", "uacute", "ugrave", "ucircumflex", "udieresis", "dagger", "degree", "cent", "sterling", "section", "bullet", "paragraph", "germandbls", "registered", "copyright", "trademark", "acute", "dieresis", "notequal", "AE", "Oslash", "infinity", "plusminus", "lessequal", "greaterequal", "yen", "mu", "partialdiff", "summation", "product", "pi", "integral", "ordfeminine", "ordmasculine", "Omega", "ae", "oslash", "questiondown", "exclamdown", "logicalnot", "radical", "florin", "approxequal", "Delta", "guillemotleft", "guillemotright", "ellipsis", "nonbreakingspace", "Agrave", "Atilde", "Otilde", "OE", "oe", "endash", "emdash", "quotedblleft", "quotedblright", "quoteleft", "quoteright", "divide", "lozenge", "ydieresis", "Ydieresis", "fraction", "currency", "guilsinglleft", "guilsinglright", "fi", "fl", "daggerdbl", "periodcentered", "quotesinglbase", "quotedblbase", "perthousand", "Acircumflex", "Ecircumflex", "Aacute", "Edieresis", "Egrave", "Iacute", "Icircumflex", "Idieresis", "Igrave", "Oacute", "Ocircumflex", "apple", "Ograve", "Uacute", "Ucircumflex", "Ugrave", "dotlessi", "circumflex", "tilde", "macron", "breve", "dotaccent", "ring", "cedilla", "hungarumlaut", "ogonek", "caron", "Lslash", "lslash", "Scaron", "scaron", "Zcaron", "zcaron", "brokenbar", "Eth", "eth", "Yacute", "yacute", "Thorn", "thorn", "minus", "multiply", "onesuperior", "twosuperior", "threesuperior", "onehalf", "onequarter", "threequarters", "franc", "Gbreve", "gbreve", "Idotaccent", "Scedilla", "scedilla", "Cacute", "cacute", "Ccaron", "ccaron", "dcroat"]; |
| |
| function adjustWidths(properties) { |
| if (!properties.fontMatrix) { |
| return; |
| } |
| |
| if (properties.fontMatrix[0] === _util.FONT_IDENTITY_MATRIX[0]) { |
| return; |
| } |
| |
| var scale = 0.001 / properties.fontMatrix[0]; |
| var glyphsWidths = properties.widths; |
| |
| for (var glyph in glyphsWidths) { |
| glyphsWidths[glyph] *= scale; |
| } |
| |
| properties.defaultWidth *= scale; |
| } |
| |
| function adjustToUnicode(properties, builtInEncoding) { |
| if (properties.hasIncludedToUnicodeMap) { |
| return; |
| } |
| |
| if (properties.hasEncoding) { |
| return; |
| } |
| |
| if (builtInEncoding === properties.defaultEncoding) { |
| return; |
| } |
| |
| if (properties.toUnicode instanceof IdentityToUnicodeMap) { |
| return; |
| } |
| |
| var toUnicode = [], |
| glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)(); |
| |
| for (var charCode in builtInEncoding) { |
| var glyphName = builtInEncoding[charCode]; |
| var unicode = (0, _unicode.getUnicodeForGlyph)(glyphName, glyphsUnicodeMap); |
| |
| if (unicode !== -1) { |
| toUnicode[charCode] = String.fromCharCode(unicode); |
| } |
| } |
| |
| properties.toUnicode.amend(toUnicode); |
| } |
| |
| function getFontType(type, subtype) { |
| switch (type) { |
| case "Type1": |
| return subtype === "Type1C" ? _util.FontType.TYPE1C : _util.FontType.TYPE1; |
| |
| case "CIDFontType0": |
| return subtype === "CIDFontType0C" ? _util.FontType.CIDFONTTYPE0C : _util.FontType.CIDFONTTYPE0; |
| |
| case "OpenType": |
| return _util.FontType.OPENTYPE; |
| |
| case "TrueType": |
| return _util.FontType.TRUETYPE; |
| |
| case "CIDFontType2": |
| return _util.FontType.CIDFONTTYPE2; |
| |
| case "MMType1": |
| return _util.FontType.MMTYPE1; |
| |
| case "Type0": |
| return _util.FontType.TYPE0; |
| |
| default: |
| return _util.FontType.UNKNOWN; |
| } |
| } |
| |
| function recoverGlyphName(name, glyphsUnicodeMap) { |
| if (glyphsUnicodeMap[name] !== undefined) { |
| return name; |
| } |
| |
| var unicode = (0, _unicode.getUnicodeForGlyph)(name, glyphsUnicodeMap); |
| |
| if (unicode !== -1) { |
| for (var key in glyphsUnicodeMap) { |
| if (glyphsUnicodeMap[key] === unicode) { |
| return key; |
| } |
| } |
| } |
| |
| (0, _util.info)("Unable to recover a standard glyph name for: " + name); |
| return name; |
| } |
| |
| var Glyph = function GlyphClosure() { |
| function Glyph(fontChar, unicode, accent, width, vmetric, operatorListId, isSpace, isInFont) { |
| this.fontChar = fontChar; |
| this.unicode = unicode; |
| this.accent = accent; |
| this.width = width; |
| this.vmetric = vmetric; |
| this.operatorListId = operatorListId; |
| this.isSpace = isSpace; |
| this.isInFont = isInFont; |
| } |
| |
| Glyph.prototype.matchesForCache = function (fontChar, unicode, accent, width, vmetric, operatorListId, isSpace, isInFont) { |
| return this.fontChar === fontChar && this.unicode === unicode && this.accent === accent && this.width === width && this.vmetric === vmetric && this.operatorListId === operatorListId && this.isSpace === isSpace && this.isInFont === isInFont; |
| }; |
| |
| return Glyph; |
| }(); |
| |
| var ToUnicodeMap = function ToUnicodeMapClosure() { |
| function ToUnicodeMap(cmap = []) { |
| this._map = cmap; |
| } |
| |
| ToUnicodeMap.prototype = { |
| get length() { |
| return this._map.length; |
| }, |
| |
| forEach(callback) { |
| for (var charCode in this._map) { |
| callback(charCode, this._map[charCode].charCodeAt(0)); |
| } |
| }, |
| |
| has(i) { |
| return this._map[i] !== undefined; |
| }, |
| |
| get(i) { |
| return this._map[i]; |
| }, |
| |
| charCodeOf(value) { |
| const map = this._map; |
| |
| if (map.length <= 0x10000) { |
| return map.indexOf(value); |
| } |
| |
| for (const charCode in map) { |
| if (map[charCode] === value) { |
| return charCode | 0; |
| } |
| } |
| |
| return -1; |
| }, |
| |
| amend(map) { |
| for (var charCode in map) { |
| this._map[charCode] = map[charCode]; |
| } |
| } |
| |
| }; |
| return ToUnicodeMap; |
| }(); |
| |
| exports.ToUnicodeMap = ToUnicodeMap; |
| |
| var IdentityToUnicodeMap = function IdentityToUnicodeMapClosure() { |
| function IdentityToUnicodeMap(firstChar, lastChar) { |
| this.firstChar = firstChar; |
| this.lastChar = lastChar; |
| } |
| |
| IdentityToUnicodeMap.prototype = { |
| get length() { |
| return this.lastChar + 1 - this.firstChar; |
| }, |
| |
| forEach(callback) { |
| for (var i = this.firstChar, ii = this.lastChar; i <= ii; i++) { |
| callback(i, i); |
| } |
| }, |
| |
| has(i) { |
| return this.firstChar <= i && i <= this.lastChar; |
| }, |
| |
| get(i) { |
| if (this.firstChar <= i && i <= this.lastChar) { |
| return String.fromCharCode(i); |
| } |
| |
| return undefined; |
| }, |
| |
| charCodeOf(v) { |
| return Number.isInteger(v) && v >= this.firstChar && v <= this.lastChar ? v : -1; |
| }, |
| |
| amend(map) { |
| (0, _util.unreachable)("Should not call amend()"); |
| } |
| |
| }; |
| return IdentityToUnicodeMap; |
| }(); |
| |
| exports.IdentityToUnicodeMap = IdentityToUnicodeMap; |
| |
| var OpenTypeFileBuilder = function OpenTypeFileBuilderClosure() { |
| function writeInt16(dest, offset, num) { |
| dest[offset] = num >> 8 & 0xff; |
| dest[offset + 1] = num & 0xff; |
| } |
| |
| function writeInt32(dest, offset, num) { |
| dest[offset] = num >> 24 & 0xff; |
| dest[offset + 1] = num >> 16 & 0xff; |
| dest[offset + 2] = num >> 8 & 0xff; |
| dest[offset + 3] = num & 0xff; |
| } |
| |
| function writeData(dest, offset, data) { |
| var i, ii; |
| |
| if (data instanceof Uint8Array) { |
| dest.set(data, offset); |
| } else if (typeof data === "string") { |
| for (i = 0, ii = data.length; i < ii; i++) { |
| dest[offset++] = data.charCodeAt(i) & 0xff; |
| } |
| } else { |
| for (i = 0, ii = data.length; i < ii; i++) { |
| dest[offset++] = data[i] & 0xff; |
| } |
| } |
| } |
| |
| function OpenTypeFileBuilder(sfnt) { |
| this.sfnt = sfnt; |
| this.tables = Object.create(null); |
| } |
| |
| OpenTypeFileBuilder.getSearchParams = function OpenTypeFileBuilder_getSearchParams(entriesCount, entrySize) { |
| var maxPower2 = 1, |
| log2 = 0; |
| |
| while ((maxPower2 ^ entriesCount) > maxPower2) { |
| maxPower2 <<= 1; |
| log2++; |
| } |
| |
| var searchRange = maxPower2 * entrySize; |
| return { |
| range: searchRange, |
| entry: log2, |
| rangeShift: entrySize * entriesCount - searchRange |
| }; |
| }; |
| |
| var OTF_HEADER_SIZE = 12; |
| var OTF_TABLE_ENTRY_SIZE = 16; |
| OpenTypeFileBuilder.prototype = { |
| toArray: function OpenTypeFileBuilder_toArray() { |
| var sfnt = this.sfnt; |
| var tables = this.tables; |
| var tablesNames = Object.keys(tables); |
| tablesNames.sort(); |
| var numTables = tablesNames.length; |
| var i, j, jj, table, tableName; |
| var offset = OTF_HEADER_SIZE + numTables * OTF_TABLE_ENTRY_SIZE; |
| var tableOffsets = [offset]; |
| |
| for (i = 0; i < numTables; i++) { |
| table = tables[tablesNames[i]]; |
| var paddedLength = (table.length + 3 & ~3) >>> 0; |
| offset += paddedLength; |
| tableOffsets.push(offset); |
| } |
| |
| var file = new Uint8Array(offset); |
| |
| for (i = 0; i < numTables; i++) { |
| table = tables[tablesNames[i]]; |
| writeData(file, tableOffsets[i], table); |
| } |
| |
| if (sfnt === "true") { |
| sfnt = (0, _util.string32)(0x00010000); |
| } |
| |
| file[0] = sfnt.charCodeAt(0) & 0xff; |
| file[1] = sfnt.charCodeAt(1) & 0xff; |
| file[2] = sfnt.charCodeAt(2) & 0xff; |
| file[3] = sfnt.charCodeAt(3) & 0xff; |
| writeInt16(file, 4, numTables); |
| var searchParams = OpenTypeFileBuilder.getSearchParams(numTables, 16); |
| writeInt16(file, 6, searchParams.range); |
| writeInt16(file, 8, searchParams.entry); |
| writeInt16(file, 10, searchParams.rangeShift); |
| offset = OTF_HEADER_SIZE; |
| |
| for (i = 0; i < numTables; i++) { |
| tableName = tablesNames[i]; |
| file[offset] = tableName.charCodeAt(0) & 0xff; |
| file[offset + 1] = tableName.charCodeAt(1) & 0xff; |
| file[offset + 2] = tableName.charCodeAt(2) & 0xff; |
| file[offset + 3] = tableName.charCodeAt(3) & 0xff; |
| var checksum = 0; |
| |
| for (j = tableOffsets[i], jj = tableOffsets[i + 1]; j < jj; j += 4) { |
| var quad = (0, _core_utils.readUint32)(file, j); |
| checksum = checksum + quad >>> 0; |
| } |
| |
| writeInt32(file, offset + 4, checksum); |
| writeInt32(file, offset + 8, tableOffsets[i]); |
| writeInt32(file, offset + 12, tables[tableName].length); |
| offset += OTF_TABLE_ENTRY_SIZE; |
| } |
| |
| return file; |
| }, |
| addTable: function OpenTypeFileBuilder_addTable(tag, data) { |
| if (tag in this.tables) { |
| throw new Error("Table " + tag + " already exists"); |
| } |
| |
| this.tables[tag] = data; |
| } |
| }; |
| return OpenTypeFileBuilder; |
| }(); |
| |
| var Font = function FontClosure() { |
| function Font(name, file, properties) { |
| var charCode; |
| this.name = name; |
| this.loadedName = properties.loadedName; |
| this.isType3Font = properties.isType3Font; |
| this.missingFile = false; |
| this.glyphCache = Object.create(null); |
| this.isSerifFont = !!(properties.flags & FontFlags.Serif); |
| this.isSymbolicFont = !!(properties.flags & FontFlags.Symbolic); |
| this.isMonospace = !!(properties.flags & FontFlags.FixedPitch); |
| var type = properties.type; |
| var subtype = properties.subtype; |
| this.type = type; |
| this.subtype = subtype; |
| let fallbackName = "sans-serif"; |
| |
| if (this.isMonospace) { |
| fallbackName = "monospace"; |
| } else if (this.isSerifFont) { |
| fallbackName = "serif"; |
| } |
| |
| this.fallbackName = fallbackName; |
| this.differences = properties.differences; |
| this.widths = properties.widths; |
| this.defaultWidth = properties.defaultWidth; |
| this.composite = properties.composite; |
| this.cMap = properties.cMap; |
| this.ascent = properties.ascent / PDF_GLYPH_SPACE_UNITS; |
| this.descent = properties.descent / PDF_GLYPH_SPACE_UNITS; |
| this.fontMatrix = properties.fontMatrix; |
| this.bbox = properties.bbox; |
| this.defaultEncoding = properties.defaultEncoding; |
| this.toUnicode = properties.toUnicode; |
| this.fallbackToUnicode = properties.fallbackToUnicode || new ToUnicodeMap(); |
| this.toFontChar = []; |
| |
| if (properties.type === "Type3") { |
| for (charCode = 0; charCode < 256; charCode++) { |
| this.toFontChar[charCode] = this.differences[charCode] || properties.defaultEncoding[charCode]; |
| } |
| |
| this.fontType = _util.FontType.TYPE3; |
| return; |
| } |
| |
| this.cidEncoding = properties.cidEncoding; |
| this.vertical = !!properties.vertical; |
| |
| if (this.vertical) { |
| this.vmetrics = properties.vmetrics; |
| this.defaultVMetrics = properties.defaultVMetrics; |
| } |
| |
| if (!file || file.isEmpty) { |
| if (file) { |
| (0, _util.warn)('Font file is empty in "' + name + '" (' + this.loadedName + ")"); |
| } |
| |
| this.fallbackToSystemFont(); |
| return; |
| } |
| |
| [type, subtype] = getFontFileType(file, properties); |
| |
| if (type !== this.type || subtype !== this.subtype) { |
| (0, _util.info)("Inconsistent font file Type/SubType, expected: " + `${this.type}/${this.subtype} but found: ${type}/${subtype}.`); |
| } |
| |
| try { |
| var data; |
| |
| switch (type) { |
| case "MMType1": |
| (0, _util.info)("MMType1 font (" + name + "), falling back to Type1."); |
| |
| case "Type1": |
| case "CIDFontType0": |
| this.mimetype = "font/opentype"; |
| var cff = subtype === "Type1C" || subtype === "CIDFontType0C" ? new CFFFont(file, properties) : new Type1Font(name, file, properties); |
| adjustWidths(properties); |
| data = this.convert(name, cff, properties); |
| break; |
| |
| case "OpenType": |
| case "TrueType": |
| case "CIDFontType2": |
| this.mimetype = "font/opentype"; |
| data = this.checkAndRepair(name, file, properties); |
| |
| if (this.isOpenType) { |
| adjustWidths(properties); |
| type = "OpenType"; |
| } |
| |
| break; |
| |
| default: |
| throw new _util.FormatError(`Font ${type} is not supported`); |
| } |
| } catch (e) { |
| (0, _util.warn)(e); |
| this.fallbackToSystemFont(); |
| return; |
| } |
| |
| this.data = data; |
| this.fontType = getFontType(type, subtype); |
| this.fontMatrix = properties.fontMatrix; |
| this.widths = properties.widths; |
| this.defaultWidth = properties.defaultWidth; |
| this.toUnicode = properties.toUnicode; |
| this.seacMap = properties.seacMap; |
| } |
| |
| function int16(b0, b1) { |
| return (b0 << 8) + b1; |
| } |
| |
| function writeSignedInt16(bytes, index, value) { |
| bytes[index + 1] = value; |
| bytes[index] = value >>> 8; |
| } |
| |
| function signedInt16(b0, b1) { |
| var value = (b0 << 8) + b1; |
| return value & 1 << 15 ? value - 0x10000 : value; |
| } |
| |
| function int32(b0, b1, b2, b3) { |
| return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3; |
| } |
| |
| function string16(value) { |
| return String.fromCharCode(value >> 8 & 0xff, value & 0xff); |
| } |
| |
| function safeString16(value) { |
| if (value > 0x7fff) { |
| value = 0x7fff; |
| } else if (value < -0x8000) { |
| value = -0x8000; |
| } |
| |
| return String.fromCharCode(value >> 8 & 0xff, value & 0xff); |
| } |
| |
| function isTrueTypeFile(file) { |
| var header = file.peekBytes(4); |
| return (0, _core_utils.readUint32)(header, 0) === 0x00010000 || (0, _util.bytesToString)(header) === "true"; |
| } |
| |
| function isTrueTypeCollectionFile(file) { |
| const header = file.peekBytes(4); |
| return (0, _util.bytesToString)(header) === "ttcf"; |
| } |
| |
| function isOpenTypeFile(file) { |
| var header = file.peekBytes(4); |
| return (0, _util.bytesToString)(header) === "OTTO"; |
| } |
| |
| function isType1File(file) { |
| var header = file.peekBytes(2); |
| |
| if (header[0] === 0x25 && header[1] === 0x21) { |
| return true; |
| } |
| |
| if (header[0] === 0x80 && header[1] === 0x01) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| function isCFFFile(file) { |
| const header = file.peekBytes(4); |
| |
| if (header[0] >= 1 && header[3] >= 1 && header[3] <= 4) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| function getFontFileType(file, { |
| type, |
| subtype, |
| composite |
| }) { |
| let fileType, fileSubtype; |
| |
| if (isTrueTypeFile(file) || isTrueTypeCollectionFile(file)) { |
| if (composite) { |
| fileType = "CIDFontType2"; |
| } else { |
| fileType = "TrueType"; |
| } |
| } else if (isOpenTypeFile(file)) { |
| if (composite) { |
| fileType = "CIDFontType2"; |
| } else { |
| fileType = "OpenType"; |
| } |
| } else if (isType1File(file)) { |
| if (composite) { |
| fileType = "CIDFontType0"; |
| } else { |
| fileType = type === "MMType1" ? "MMType1" : "Type1"; |
| } |
| } else if (isCFFFile(file)) { |
| if (composite) { |
| fileType = "CIDFontType0"; |
| fileSubtype = "CIDFontType0C"; |
| } else { |
| fileType = type === "MMType1" ? "MMType1" : "Type1"; |
| fileSubtype = "Type1C"; |
| } |
| } else { |
| (0, _util.warn)("getFontFileType: Unable to detect correct font file Type/Subtype."); |
| fileType = type; |
| fileSubtype = subtype; |
| } |
| |
| return [fileType, fileSubtype]; |
| } |
| |
| function buildToFontChar(encoding, glyphsUnicodeMap, differences) { |
| var toFontChar = [], |
| unicode; |
| |
| for (var i = 0, ii = encoding.length; i < ii; i++) { |
| unicode = (0, _unicode.getUnicodeForGlyph)(encoding[i], glyphsUnicodeMap); |
| |
| if (unicode !== -1) { |
| toFontChar[i] = unicode; |
| } |
| } |
| |
| for (var charCode in differences) { |
| unicode = (0, _unicode.getUnicodeForGlyph)(differences[charCode], glyphsUnicodeMap); |
| |
| if (unicode !== -1) { |
| toFontChar[+charCode] = unicode; |
| } |
| } |
| |
| return toFontChar; |
| } |
| |
| function adjustMapping(charCodeToGlyphId, hasGlyph, newGlyphZeroId) { |
| var newMap = Object.create(null); |
| var toFontChar = []; |
| var privateUseAreaIndex = 0; |
| var nextAvailableFontCharCode = PRIVATE_USE_AREAS[privateUseAreaIndex][0]; |
| var privateUseOffetEnd = PRIVATE_USE_AREAS[privateUseAreaIndex][1]; |
| |
| for (var originalCharCode in charCodeToGlyphId) { |
| originalCharCode |= 0; |
| var glyphId = charCodeToGlyphId[originalCharCode]; |
| |
| if (!hasGlyph(glyphId)) { |
| continue; |
| } |
| |
| if (nextAvailableFontCharCode > privateUseOffetEnd) { |
| privateUseAreaIndex++; |
| |
| if (privateUseAreaIndex >= PRIVATE_USE_AREAS.length) { |
| (0, _util.warn)("Ran out of space in font private use area."); |
| break; |
| } |
| |
| nextAvailableFontCharCode = PRIVATE_USE_AREAS[privateUseAreaIndex][0]; |
| privateUseOffetEnd = PRIVATE_USE_AREAS[privateUseAreaIndex][1]; |
| } |
| |
| var fontCharCode = nextAvailableFontCharCode++; |
| |
| if (glyphId === 0) { |
| glyphId = newGlyphZeroId; |
| } |
| |
| newMap[fontCharCode] = glyphId; |
| toFontChar[originalCharCode] = fontCharCode; |
| } |
| |
| return { |
| toFontChar, |
| charCodeToGlyphId: newMap, |
| nextAvailableFontCharCode |
| }; |
| } |
| |
| function getRanges(glyphs, numGlyphs) { |
| var codes = []; |
| |
| for (var charCode in glyphs) { |
| if (glyphs[charCode] >= numGlyphs) { |
| continue; |
| } |
| |
| codes.push({ |
| fontCharCode: charCode | 0, |
| glyphId: glyphs[charCode] |
| }); |
| } |
| |
| if (codes.length === 0) { |
| codes.push({ |
| fontCharCode: 0, |
| glyphId: 0 |
| }); |
| } |
| |
| codes.sort(function fontGetRangesSort(a, b) { |
| return a.fontCharCode - b.fontCharCode; |
| }); |
| var ranges = []; |
| var length = codes.length; |
| |
| for (var n = 0; n < length;) { |
| var start = codes[n].fontCharCode; |
| var codeIndices = [codes[n].glyphId]; |
| ++n; |
| var end = start; |
| |
| while (n < length && end + 1 === codes[n].fontCharCode) { |
| codeIndices.push(codes[n].glyphId); |
| ++end; |
| ++n; |
| |
| if (end === 0xffff) { |
| break; |
| } |
| } |
| |
| ranges.push([start, end, codeIndices]); |
| } |
| |
| return ranges; |
| } |
| |
| function createCmapTable(glyphs, numGlyphs) { |
| var ranges = getRanges(glyphs, numGlyphs); |
| var numTables = ranges[ranges.length - 1][1] > 0xffff ? 2 : 1; |
| var cmap = "\x00\x00" + string16(numTables) + "\x00\x03" + "\x00\x01" + (0, _util.string32)(4 + numTables * 8); |
| var i, ii, j, jj; |
| |
| for (i = ranges.length - 1; i >= 0; --i) { |
| if (ranges[i][0] <= 0xffff) { |
| break; |
| } |
| } |
| |
| var bmpLength = i + 1; |
| |
| if (ranges[i][0] < 0xffff && ranges[i][1] === 0xffff) { |
| ranges[i][1] = 0xfffe; |
| } |
| |
| var trailingRangesCount = ranges[i][1] < 0xffff ? 1 : 0; |
| var segCount = bmpLength + trailingRangesCount; |
| var searchParams = OpenTypeFileBuilder.getSearchParams(segCount, 2); |
| var startCount = ""; |
| var endCount = ""; |
| var idDeltas = ""; |
| var idRangeOffsets = ""; |
| var glyphsIds = ""; |
| var bias = 0; |
| var range, start, end, codes; |
| |
| for (i = 0, ii = bmpLength; i < ii; i++) { |
| range = ranges[i]; |
| start = range[0]; |
| end = range[1]; |
| startCount += string16(start); |
| endCount += string16(end); |
| codes = range[2]; |
| var contiguous = true; |
| |
| for (j = 1, jj = codes.length; j < jj; ++j) { |
| if (codes[j] !== codes[j - 1] + 1) { |
| contiguous = false; |
| break; |
| } |
| } |
| |
| if (!contiguous) { |
| var offset = (segCount - i) * 2 + bias * 2; |
| bias += end - start + 1; |
| idDeltas += string16(0); |
| idRangeOffsets += string16(offset); |
| |
| for (j = 0, jj = codes.length; j < jj; ++j) { |
| glyphsIds += string16(codes[j]); |
| } |
| } else { |
| var startCode = codes[0]; |
| idDeltas += string16(startCode - start & 0xffff); |
| idRangeOffsets += string16(0); |
| } |
| } |
| |
| if (trailingRangesCount > 0) { |
| endCount += "\xFF\xFF"; |
| startCount += "\xFF\xFF"; |
| idDeltas += "\x00\x01"; |
| idRangeOffsets += "\x00\x00"; |
| } |
| |
| var format314 = "\x00\x00" + string16(2 * segCount) + string16(searchParams.range) + string16(searchParams.entry) + string16(searchParams.rangeShift) + endCount + "\x00\x00" + startCount + idDeltas + idRangeOffsets + glyphsIds; |
| var format31012 = ""; |
| var header31012 = ""; |
| |
| if (numTables > 1) { |
| cmap += "\x00\x03" + "\x00\x0A" + (0, _util.string32)(4 + numTables * 8 + 4 + format314.length); |
| format31012 = ""; |
| |
| for (i = 0, ii = ranges.length; i < ii; i++) { |
| range = ranges[i]; |
| start = range[0]; |
| codes = range[2]; |
| var code = codes[0]; |
| |
| for (j = 1, jj = codes.length; j < jj; ++j) { |
| if (codes[j] !== codes[j - 1] + 1) { |
| end = range[0] + j - 1; |
| format31012 += (0, _util.string32)(start) + (0, _util.string32)(end) + (0, _util.string32)(code); |
| start = end + 1; |
| code = codes[j]; |
| } |
| } |
| |
| format31012 += (0, _util.string32)(start) + (0, _util.string32)(range[1]) + (0, _util.string32)(code); |
| } |
| |
| header31012 = "\x00\x0C" + "\x00\x00" + (0, _util.string32)(format31012.length + 16) + "\x00\x00\x00\x00" + (0, _util.string32)(format31012.length / 12); |
| } |
| |
| return cmap + "\x00\x04" + string16(format314.length + 4) + format314 + header31012 + format31012; |
| } |
| |
| function validateOS2Table(os2, file) { |
| file.pos = (file.start || 0) + os2.offset; |
| var version = file.getUint16(); |
| file.skip(60); |
| var selection = file.getUint16(); |
| |
| if (version < 4 && selection & 0x0300) { |
| return false; |
| } |
| |
| var firstChar = file.getUint16(); |
| var lastChar = file.getUint16(); |
| |
| if (firstChar > lastChar) { |
| return false; |
| } |
| |
| file.skip(6); |
| var usWinAscent = file.getUint16(); |
| |
| if (usWinAscent === 0) { |
| return false; |
| } |
| |
| os2.data[8] = os2.data[9] = 0; |
| return true; |
| } |
| |
| function createOS2Table(properties, charstrings, override) { |
| override = override || { |
| unitsPerEm: 0, |
| yMax: 0, |
| yMin: 0, |
| ascent: 0, |
| descent: 0 |
| }; |
| var ulUnicodeRange1 = 0; |
| var ulUnicodeRange2 = 0; |
| var ulUnicodeRange3 = 0; |
| var ulUnicodeRange4 = 0; |
| var firstCharIndex = null; |
| var lastCharIndex = 0; |
| |
| if (charstrings) { |
| for (var code in charstrings) { |
| code |= 0; |
| |
| if (firstCharIndex > code || !firstCharIndex) { |
| firstCharIndex = code; |
| } |
| |
| if (lastCharIndex < code) { |
| lastCharIndex = code; |
| } |
| |
| var position = (0, _unicode.getUnicodeRangeFor)(code); |
| |
| if (position < 32) { |
| ulUnicodeRange1 |= 1 << position; |
| } else if (position < 64) { |
| ulUnicodeRange2 |= 1 << position - 32; |
| } else if (position < 96) { |
| ulUnicodeRange3 |= 1 << position - 64; |
| } else if (position < 123) { |
| ulUnicodeRange4 |= 1 << position - 96; |
| } else { |
| throw new _util.FormatError("Unicode ranges Bits > 123 are reserved for internal usage"); |
| } |
| } |
| |
| if (lastCharIndex > 0xffff) { |
| lastCharIndex = 0xffff; |
| } |
| } else { |
| firstCharIndex = 0; |
| lastCharIndex = 255; |
| } |
| |
| var bbox = properties.bbox || [0, 0, 0, 0]; |
| var unitsPerEm = override.unitsPerEm || 1 / (properties.fontMatrix || _util.FONT_IDENTITY_MATRIX)[0]; |
| var scale = properties.ascentScaled ? 1.0 : unitsPerEm / PDF_GLYPH_SPACE_UNITS; |
| var typoAscent = override.ascent || Math.round(scale * (properties.ascent || bbox[3])); |
| var typoDescent = override.descent || Math.round(scale * (properties.descent || bbox[1])); |
| |
| if (typoDescent > 0 && properties.descent > 0 && bbox[1] < 0) { |
| typoDescent = -typoDescent; |
| } |
| |
| var winAscent = override.yMax || typoAscent; |
| var winDescent = -override.yMin || -typoDescent; |
| return "\x00\x03" + "\x02\x24" + "\x01\xF4" + "\x00\x05" + "\x00\x00" + "\x02\x8A" + "\x02\xBB" + "\x00\x00" + "\x00\x8C" + "\x02\x8A" + "\x02\xBB" + "\x00\x00" + "\x01\xDF" + "\x00\x31" + "\x01\x02" + "\x00\x00" + "\x00\x00\x06" + String.fromCharCode(properties.fixedPitch ? 0x09 : 0x00) + "\x00\x00\x00\x00\x00\x00" + (0, _util.string32)(ulUnicodeRange1) + (0, _util.string32)(ulUnicodeRange2) + (0, _util.string32)(ulUnicodeRange3) + (0, _util.string32)(ulUnicodeRange4) + "\x2A\x32\x31\x2A" + string16(properties.italicAngle ? 1 : 0) + string16(firstCharIndex || properties.firstChar) + string16(lastCharIndex || properties.lastChar) + string16(typoAscent) + string16(typoDescent) + "\x00\x64" + string16(winAscent) + string16(winDescent) + "\x00\x00\x00\x00" + "\x00\x00\x00\x00" + string16(properties.xHeight) + string16(properties.capHeight) + string16(0) + string16(firstCharIndex || properties.firstChar) + "\x00\x03"; |
| } |
| |
| function createPostTable(properties) { |
| var angle = Math.floor(properties.italicAngle * 2 ** 16); |
| return "\x00\x03\x00\x00" + (0, _util.string32)(angle) + "\x00\x00" + "\x00\x00" + (0, _util.string32)(properties.fixedPitch) + "\x00\x00\x00\x00" + "\x00\x00\x00\x00" + "\x00\x00\x00\x00" + "\x00\x00\x00\x00"; |
| } |
| |
| function createNameTable(name, proto) { |
| if (!proto) { |
| proto = [[], []]; |
| } |
| |
| var strings = [proto[0][0] || "Original licence", proto[0][1] || name, proto[0][2] || "Unknown", proto[0][3] || "uniqueID", proto[0][4] || name, proto[0][5] || "Version 0.11", proto[0][6] || "", proto[0][7] || "Unknown", proto[0][8] || "Unknown", proto[0][9] || "Unknown"]; |
| var stringsUnicode = []; |
| var i, ii, j, jj, str; |
| |
| for (i = 0, ii = strings.length; i < ii; i++) { |
| str = proto[1][i] || strings[i]; |
| var strBufUnicode = []; |
| |
| for (j = 0, jj = str.length; j < jj; j++) { |
| strBufUnicode.push(string16(str.charCodeAt(j))); |
| } |
| |
| stringsUnicode.push(strBufUnicode.join("")); |
| } |
| |
| var names = [strings, stringsUnicode]; |
| var platforms = ["\x00\x01", "\x00\x03"]; |
| var encodings = ["\x00\x00", "\x00\x01"]; |
| var languages = ["\x00\x00", "\x04\x09"]; |
| var namesRecordCount = strings.length * platforms.length; |
| var nameTable = "\x00\x00" + string16(namesRecordCount) + string16(namesRecordCount * 12 + 6); |
| var strOffset = 0; |
| |
| for (i = 0, ii = platforms.length; i < ii; i++) { |
| var strs = names[i]; |
| |
| for (j = 0, jj = strs.length; j < jj; j++) { |
| str = strs[j]; |
| var nameRecord = platforms[i] + encodings[i] + languages[i] + string16(j) + string16(str.length) + string16(strOffset); |
| nameTable += nameRecord; |
| strOffset += str.length; |
| } |
| } |
| |
| nameTable += strings.join("") + stringsUnicode.join(""); |
| return nameTable; |
| } |
| |
| Font.prototype = { |
| name: null, |
| font: null, |
| mimetype: null, |
| disableFontFace: false, |
| |
| get renderer() { |
| var renderer = _font_renderer.FontRendererFactory.create(this, SEAC_ANALYSIS_ENABLED); |
| |
| return (0, _util.shadow)(this, "renderer", renderer); |
| }, |
| |
| exportData(extraProperties = false) { |
| const exportDataProperties = extraProperties ? [...EXPORT_DATA_PROPERTIES, ...EXPORT_DATA_EXTRA_PROPERTIES] : EXPORT_DATA_PROPERTIES; |
| const data = Object.create(null); |
| let property, value; |
| |
| for (property of exportDataProperties) { |
| value = this[property]; |
| |
| if (value !== undefined) { |
| data[property] = value; |
| } |
| } |
| |
| return data; |
| }, |
| |
| fallbackToSystemFont: function Font_fallbackToSystemFont() { |
| this.missingFile = true; |
| var name = this.name; |
| var type = this.type; |
| var subtype = this.subtype; |
| let fontName = name.replace(/[,_]/g, "-").replace(/\s/g, ""); |
| var stdFontMap = (0, _standard_fonts.getStdFontMap)(), |
| nonStdFontMap = (0, _standard_fonts.getNonStdFontMap)(); |
| var isStandardFont = !!stdFontMap[fontName] || !!(nonStdFontMap[fontName] && stdFontMap[nonStdFontMap[fontName]]); |
| fontName = stdFontMap[fontName] || nonStdFontMap[fontName] || fontName; |
| this.bold = fontName.search(/bold/gi) !== -1; |
| this.italic = fontName.search(/oblique/gi) !== -1 || fontName.search(/italic/gi) !== -1; |
| this.black = name.search(/Black/g) !== -1; |
| this.remeasure = Object.keys(this.widths).length > 0; |
| |
| if (isStandardFont && type === "CIDFontType2" && this.cidEncoding.startsWith("Identity-")) { |
| const GlyphMapForStandardFonts = (0, _standard_fonts.getGlyphMapForStandardFonts)(); |
| const map = []; |
| |
| for (const charCode in GlyphMapForStandardFonts) { |
| map[+charCode] = GlyphMapForStandardFonts[charCode]; |
| } |
| |
| if (/Arial-?Black/i.test(name)) { |
| var SupplementalGlyphMapForArialBlack = (0, _standard_fonts.getSupplementalGlyphMapForArialBlack)(); |
| |
| for (const charCode in SupplementalGlyphMapForArialBlack) { |
| map[+charCode] = SupplementalGlyphMapForArialBlack[charCode]; |
| } |
| } else if (/Calibri/i.test(name)) { |
| const SupplementalGlyphMapForCalibri = (0, _standard_fonts.getSupplementalGlyphMapForCalibri)(); |
| |
| for (const charCode in SupplementalGlyphMapForCalibri) { |
| map[+charCode] = SupplementalGlyphMapForCalibri[charCode]; |
| } |
| } |
| |
| var isIdentityUnicode = this.toUnicode instanceof IdentityToUnicodeMap; |
| |
| if (!isIdentityUnicode) { |
| this.toUnicode.forEach(function (charCode, unicodeCharCode) { |
| map[+charCode] = unicodeCharCode; |
| }); |
| } |
| |
| this.toFontChar = map; |
| this.toUnicode = new ToUnicodeMap(map); |
| } else if (/Symbol/i.test(fontName)) { |
| this.toFontChar = buildToFontChar(_encodings.SymbolSetEncoding, (0, _glyphlist.getGlyphsUnicode)(), this.differences); |
| } else if (/Dingbats/i.test(fontName)) { |
| if (/Wingdings/i.test(name)) { |
| (0, _util.warn)("Non-embedded Wingdings font, falling back to ZapfDingbats."); |
| } |
| |
| this.toFontChar = buildToFontChar(_encodings.ZapfDingbatsEncoding, (0, _glyphlist.getDingbatsGlyphsUnicode)(), this.differences); |
| } else if (isStandardFont) { |
| this.toFontChar = buildToFontChar(this.defaultEncoding, (0, _glyphlist.getGlyphsUnicode)(), this.differences); |
| } else { |
| const glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)(); |
| const map = []; |
| this.toUnicode.forEach((charCode, unicodeCharCode) => { |
| if (!this.composite) { |
| var glyphName = this.differences[charCode] || this.defaultEncoding[charCode]; |
| const unicode = (0, _unicode.getUnicodeForGlyph)(glyphName, glyphsUnicodeMap); |
| |
| if (unicode !== -1) { |
| unicodeCharCode = unicode; |
| } |
| } |
| |
| map[+charCode] = unicodeCharCode; |
| }); |
| |
| if (this.composite && this.toUnicode instanceof IdentityToUnicodeMap) { |
| if (/Verdana/i.test(name)) { |
| const GlyphMapForStandardFonts = (0, _standard_fonts.getGlyphMapForStandardFonts)(); |
| |
| for (const charCode in GlyphMapForStandardFonts) { |
| map[+charCode] = GlyphMapForStandardFonts[charCode]; |
| } |
| } |
| } |
| |
| this.toFontChar = map; |
| } |
| |
| this.loadedName = fontName.split("-")[0]; |
| this.fontType = getFontType(type, subtype); |
| }, |
| checkAndRepair: function Font_checkAndRepair(name, font, properties) { |
| const VALID_TABLES = ["OS/2", "cmap", "head", "hhea", "hmtx", "maxp", "name", "post", "loca", "glyf", "fpgm", "prep", "cvt ", "CFF "]; |
| |
| function readTables(file, numTables) { |
| const tables = Object.create(null); |
| tables["OS/2"] = null; |
| tables.cmap = null; |
| tables.head = null; |
| tables.hhea = null; |
| tables.hmtx = null; |
| tables.maxp = null; |
| tables.name = null; |
| tables.post = null; |
| |
| for (let i = 0; i < numTables; i++) { |
| const table = readTableEntry(file); |
| |
| if (!VALID_TABLES.includes(table.tag)) { |
| continue; |
| } |
| |
| if (table.length === 0) { |
| continue; |
| } |
| |
| tables[table.tag] = table; |
| } |
| |
| return tables; |
| } |
| |
| function readTableEntry(file) { |
| var tag = (0, _util.bytesToString)(file.getBytes(4)); |
| var checksum = file.getInt32() >>> 0; |
| var offset = file.getInt32() >>> 0; |
| var length = file.getInt32() >>> 0; |
| var previousPosition = file.pos; |
| file.pos = file.start ? file.start : 0; |
| file.skip(offset); |
| var data = file.getBytes(length); |
| file.pos = previousPosition; |
| |
| if (tag === "head") { |
| data[8] = data[9] = data[10] = data[11] = 0; |
| data[17] |= 0x20; |
| } |
| |
| return { |
| tag, |
| checksum, |
| length, |
| offset, |
| data |
| }; |
| } |
| |
| function readOpenTypeHeader(ttf) { |
| return { |
| version: (0, _util.bytesToString)(ttf.getBytes(4)), |
| numTables: ttf.getUint16(), |
| searchRange: ttf.getUint16(), |
| entrySelector: ttf.getUint16(), |
| rangeShift: ttf.getUint16() |
| }; |
| } |
| |
| function readTrueTypeCollectionHeader(ttc) { |
| const ttcTag = (0, _util.bytesToString)(ttc.getBytes(4)); |
| (0, _util.assert)(ttcTag === "ttcf", "Must be a TrueType Collection font."); |
| const majorVersion = ttc.getUint16(); |
| const minorVersion = ttc.getUint16(); |
| const numFonts = ttc.getInt32() >>> 0; |
| const offsetTable = []; |
| |
| for (let i = 0; i < numFonts; i++) { |
| offsetTable.push(ttc.getInt32() >>> 0); |
| } |
| |
| const header = { |
| ttcTag, |
| majorVersion, |
| minorVersion, |
| numFonts, |
| offsetTable |
| }; |
| |
| switch (majorVersion) { |
| case 1: |
| return header; |
| |
| case 2: |
| header.dsigTag = ttc.getInt32() >>> 0; |
| header.dsigLength = ttc.getInt32() >>> 0; |
| header.dsigOffset = ttc.getInt32() >>> 0; |
| return header; |
| } |
| |
| throw new _util.FormatError(`Invalid TrueType Collection majorVersion: ${majorVersion}.`); |
| } |
| |
| function readTrueTypeCollectionData(ttc, fontName) { |
| const { |
| numFonts, |
| offsetTable |
| } = readTrueTypeCollectionHeader(ttc); |
| |
| for (let i = 0; i < numFonts; i++) { |
| ttc.pos = (ttc.start || 0) + offsetTable[i]; |
| const potentialHeader = readOpenTypeHeader(ttc); |
| const potentialTables = readTables(ttc, potentialHeader.numTables); |
| |
| if (!potentialTables.name) { |
| throw new _util.FormatError('TrueType Collection font must contain a "name" table.'); |
| } |
| |
| const nameTable = readNameTable(potentialTables.name); |
| |
| for (let j = 0, jj = nameTable.length; j < jj; j++) { |
| for (let k = 0, kk = nameTable[j].length; k < kk; k++) { |
| const nameEntry = nameTable[j][k]; |
| |
| if (nameEntry && nameEntry.replace(/\s/g, "") === fontName) { |
| return { |
| header: potentialHeader, |
| tables: potentialTables |
| }; |
| } |
| } |
| } |
| } |
| |
| throw new _util.FormatError(`TrueType Collection does not contain "${fontName}" font.`); |
| } |
| |
| function readCmapTable(cmap, file, isSymbolicFont, hasEncoding) { |
| if (!cmap) { |
| (0, _util.warn)("No cmap table available."); |
| return { |
| platformId: -1, |
| encodingId: -1, |
| mappings: [], |
| hasShortCmap: false |
| }; |
| } |
| |
| var segment; |
| var start = (file.start ? file.start : 0) + cmap.offset; |
| file.pos = start; |
| file.skip(2); |
| var numTables = file.getUint16(); |
| var potentialTable; |
| var canBreak = false; |
| |
| for (var i = 0; i < numTables; i++) { |
| var platformId = file.getUint16(); |
| var encodingId = file.getUint16(); |
| var offset = file.getInt32() >>> 0; |
| var useTable = false; |
| |
| if (potentialTable && potentialTable.platformId === platformId && potentialTable.encodingId === encodingId) { |
| continue; |
| } |
| |
| if (platformId === 0 && (encodingId === 0 || encodingId === 1 || encodingId === 3)) { |
| useTable = true; |
| } else if (platformId === 1 && encodingId === 0) { |
| useTable = true; |
| } else if (platformId === 3 && encodingId === 1 && (hasEncoding || !potentialTable)) { |
| useTable = true; |
| |
| if (!isSymbolicFont) { |
| canBreak = true; |
| } |
| } else if (isSymbolicFont && platformId === 3 && encodingId === 0) { |
| useTable = true; |
| canBreak = true; |
| } |
| |
| if (useTable) { |
| potentialTable = { |
| platformId, |
| encodingId, |
| offset |
| }; |
| } |
| |
| if (canBreak) { |
| break; |
| } |
| } |
| |
| if (potentialTable) { |
| file.pos = start + potentialTable.offset; |
| } |
| |
| if (!potentialTable || file.peekByte() === -1) { |
| (0, _util.warn)("Could not find a preferred cmap table."); |
| return { |
| platformId: -1, |
| encodingId: -1, |
| mappings: [], |
| hasShortCmap: false |
| }; |
| } |
| |
| var format = file.getUint16(); |
| file.skip(2 + 2); |
| var hasShortCmap = false; |
| var mappings = []; |
| var j, glyphId; |
| |
| if (format === 0) { |
| for (j = 0; j < 256; j++) { |
| var index = file.getByte(); |
| |
| if (!index) { |
| continue; |
| } |
| |
| mappings.push({ |
| charCode: j, |
| glyphId: index |
| }); |
| } |
| |
| hasShortCmap = true; |
| } else if (format === 4) { |
| var segCount = file.getUint16() >> 1; |
| file.skip(6); |
| var segIndex, |
| segments = []; |
| |
| for (segIndex = 0; segIndex < segCount; segIndex++) { |
| segments.push({ |
| end: file.getUint16() |
| }); |
| } |
| |
| file.skip(2); |
| |
| for (segIndex = 0; segIndex < segCount; segIndex++) { |
| segments[segIndex].start = file.getUint16(); |
| } |
| |
| for (segIndex = 0; segIndex < segCount; segIndex++) { |
| segments[segIndex].delta = file.getUint16(); |
| } |
| |
| var offsetsCount = 0; |
| |
| for (segIndex = 0; segIndex < segCount; segIndex++) { |
| segment = segments[segIndex]; |
| var rangeOffset = file.getUint16(); |
| |
| if (!rangeOffset) { |
| segment.offsetIndex = -1; |
| continue; |
| } |
| |
| var offsetIndex = (rangeOffset >> 1) - (segCount - segIndex); |
| segment.offsetIndex = offsetIndex; |
| offsetsCount = Math.max(offsetsCount, offsetIndex + segment.end - segment.start + 1); |
| } |
| |
| var offsets = []; |
| |
| for (j = 0; j < offsetsCount; j++) { |
| offsets.push(file.getUint16()); |
| } |
| |
| for (segIndex = 0; segIndex < segCount; segIndex++) { |
| segment = segments[segIndex]; |
| start = segment.start; |
| var end = segment.end; |
| var delta = segment.delta; |
| offsetIndex = segment.offsetIndex; |
| |
| for (j = start; j <= end; j++) { |
| if (j === 0xffff) { |
| continue; |
| } |
| |
| glyphId = offsetIndex < 0 ? j : offsets[offsetIndex + j - start]; |
| glyphId = glyphId + delta & 0xffff; |
| mappings.push({ |
| charCode: j, |
| glyphId |
| }); |
| } |
| } |
| } else if (format === 6) { |
| var firstCode = file.getUint16(); |
| var entryCount = file.getUint16(); |
| |
| for (j = 0; j < entryCount; j++) { |
| glyphId = file.getUint16(); |
| var charCode = firstCode + j; |
| mappings.push({ |
| charCode, |
| glyphId |
| }); |
| } |
| } else { |
| (0, _util.warn)("cmap table has unsupported format: " + format); |
| return { |
| platformId: -1, |
| encodingId: -1, |
| mappings: [], |
| hasShortCmap: false |
| }; |
| } |
| |
| mappings.sort(function (a, b) { |
| return a.charCode - b.charCode; |
| }); |
| |
| for (i = 1; i < mappings.length; i++) { |
| if (mappings[i - 1].charCode === mappings[i].charCode) { |
| mappings.splice(i, 1); |
| i--; |
| } |
| } |
| |
| return { |
| platformId: potentialTable.platformId, |
| encodingId: potentialTable.encodingId, |
| mappings, |
| hasShortCmap |
| }; |
| } |
| |
| function sanitizeMetrics(file, header, metrics, numGlyphs, dupFirstEntry) { |
| if (!header) { |
| if (metrics) { |
| metrics.data = null; |
| } |
| |
| return; |
| } |
| |
| file.pos = (file.start ? file.start : 0) + header.offset; |
| file.pos += 4; |
| file.pos += 2; |
| file.pos += 2; |
| file.pos += 2; |
| file.pos += 2; |
| file.pos += 2; |
| file.pos += 2; |
| file.pos += 2; |
| file.pos += 2; |
| file.pos += 2; |
| file.pos += 2; |
| file.pos += 8; |
| file.pos += 2; |
| var numOfMetrics = file.getUint16(); |
| |
| if (numOfMetrics > numGlyphs) { |
| (0, _util.info)("The numOfMetrics (" + numOfMetrics + ") should not be " + "greater than the numGlyphs (" + numGlyphs + ")"); |
| numOfMetrics = numGlyphs; |
| header.data[34] = (numOfMetrics & 0xff00) >> 8; |
| header.data[35] = numOfMetrics & 0x00ff; |
| } |
| |
| var numOfSidebearings = numGlyphs - numOfMetrics; |
| var numMissing = numOfSidebearings - (metrics.length - numOfMetrics * 4 >> 1); |
| |
| if (numMissing > 0) { |
| var entries = new Uint8Array(metrics.length + numMissing * 2); |
| entries.set(metrics.data); |
| |
| if (dupFirstEntry) { |
| entries[metrics.length] = metrics.data[2]; |
| entries[metrics.length + 1] = metrics.data[3]; |
| } |
| |
| metrics.data = entries; |
| } |
| } |
| |
| function sanitizeGlyph(source, sourceStart, sourceEnd, dest, destStart, hintsValid) { |
| var glyphProfile = { |
| length: 0, |
| sizeOfInstructions: 0 |
| }; |
| |
| if (sourceEnd - sourceStart <= 12) { |
| return glyphProfile; |
| } |
| |
| var glyf = source.subarray(sourceStart, sourceEnd); |
| var contoursCount = signedInt16(glyf[0], glyf[1]); |
| |
| if (contoursCount < 0) { |
| contoursCount = -1; |
| writeSignedInt16(glyf, 0, contoursCount); |
| dest.set(glyf, destStart); |
| glyphProfile.length = glyf.length; |
| return glyphProfile; |
| } |
| |
| var i, |
| j = 10, |
| flagsCount = 0; |
| |
| for (i = 0; i < contoursCount; i++) { |
| var endPoint = glyf[j] << 8 | glyf[j + 1]; |
| flagsCount = endPoint + 1; |
| j += 2; |
| } |
| |
| var instructionsStart = j; |
| var instructionsLength = glyf[j] << 8 | glyf[j + 1]; |
| glyphProfile.sizeOfInstructions = instructionsLength; |
| j += 2 + instructionsLength; |
| var instructionsEnd = j; |
| var coordinatesLength = 0; |
| |
| for (i = 0; i < flagsCount; i++) { |
| var flag = glyf[j++]; |
| |
| if (flag & 0xc0) { |
| glyf[j - 1] = flag & 0x3f; |
| } |
| |
| let xLength = 2; |
| |
| if (flag & 2) { |
| xLength = 1; |
| } else if (flag & 16) { |
| xLength = 0; |
| } |
| |
| let yLength = 2; |
| |
| if (flag & 4) { |
| yLength = 1; |
| } else if (flag & 32) { |
| yLength = 0; |
| } |
| |
| const xyLength = xLength + yLength; |
| coordinatesLength += xyLength; |
| |
| if (flag & 8) { |
| var repeat = glyf[j++]; |
| i += repeat; |
| coordinatesLength += repeat * xyLength; |
| } |
| } |
| |
| if (coordinatesLength === 0) { |
| return glyphProfile; |
| } |
| |
| var glyphDataLength = j + coordinatesLength; |
| |
| if (glyphDataLength > glyf.length) { |
| return glyphProfile; |
| } |
| |
| if (!hintsValid && instructionsLength > 0) { |
| dest.set(glyf.subarray(0, instructionsStart), destStart); |
| dest.set([0, 0], destStart + instructionsStart); |
| dest.set(glyf.subarray(instructionsEnd, glyphDataLength), destStart + instructionsStart + 2); |
| glyphDataLength -= instructionsLength; |
| |
| if (glyf.length - glyphDataLength > 3) { |
| glyphDataLength = glyphDataLength + 3 & ~3; |
| } |
| |
| glyphProfile.length = glyphDataLength; |
| return glyphProfile; |
| } |
| |
| if (glyf.length - glyphDataLength > 3) { |
| glyphDataLength = glyphDataLength + 3 & ~3; |
| dest.set(glyf.subarray(0, glyphDataLength), destStart); |
| glyphProfile.length = glyphDataLength; |
| return glyphProfile; |
| } |
| |
| dest.set(glyf, destStart); |
| glyphProfile.length = glyf.length; |
| return glyphProfile; |
| } |
| |
| function sanitizeHead(head, numGlyphs, locaLength) { |
| var data = head.data; |
| var version = int32(data[0], data[1], data[2], data[3]); |
| |
| if (version >> 16 !== 1) { |
| (0, _util.info)("Attempting to fix invalid version in head table: " + version); |
| data[0] = 0; |
| data[1] = 1; |
| data[2] = 0; |
| data[3] = 0; |
| } |
| |
| var indexToLocFormat = int16(data[50], data[51]); |
| |
| if (indexToLocFormat < 0 || indexToLocFormat > 1) { |
| (0, _util.info)("Attempting to fix invalid indexToLocFormat in head table: " + indexToLocFormat); |
| var numGlyphsPlusOne = numGlyphs + 1; |
| |
| if (locaLength === numGlyphsPlusOne << 1) { |
| data[50] = 0; |
| data[51] = 0; |
| } else if (locaLength === numGlyphsPlusOne << 2) { |
| data[50] = 0; |
| data[51] = 1; |
| } else { |
| throw new _util.FormatError("Could not fix indexToLocFormat: " + indexToLocFormat); |
| } |
| } |
| } |
| |
| function sanitizeGlyphLocations(loca, glyf, numGlyphs, isGlyphLocationsLong, hintsValid, dupFirstEntry, maxSizeOfInstructions) { |
| var itemSize, itemDecode, itemEncode; |
| |
| if (isGlyphLocationsLong) { |
| itemSize = 4; |
| |
| itemDecode = function fontItemDecodeLong(data, offset) { |
| return data[offset] << 24 | data[offset + 1] << 16 | data[offset + 2] << 8 | data[offset + 3]; |
| }; |
| |
| itemEncode = function fontItemEncodeLong(data, offset, value) { |
| data[offset] = value >>> 24 & 0xff; |
| data[offset + 1] = value >> 16 & 0xff; |
| data[offset + 2] = value >> 8 & 0xff; |
| data[offset + 3] = value & 0xff; |
| }; |
| } else { |
| itemSize = 2; |
| |
| itemDecode = function fontItemDecode(data, offset) { |
| return data[offset] << 9 | data[offset + 1] << 1; |
| }; |
| |
| itemEncode = function fontItemEncode(data, offset, value) { |
| data[offset] = value >> 9 & 0xff; |
| data[offset + 1] = value >> 1 & 0xff; |
| }; |
| } |
| |
| var numGlyphsOut = dupFirstEntry ? numGlyphs + 1 : numGlyphs; |
| var locaDataSize = itemSize * (1 + numGlyphsOut); |
| var locaData = new Uint8Array(locaDataSize); |
| locaData.set(loca.data.subarray(0, locaDataSize)); |
| loca.data = locaData; |
| var oldGlyfData = glyf.data; |
| var oldGlyfDataLength = oldGlyfData.length; |
| var newGlyfData = new Uint8Array(oldGlyfDataLength); |
| var i, j; |
| const locaEntries = []; |
| |
| for (i = 0, j = 0; i < numGlyphs + 1; i++, j += itemSize) { |
| let offset = itemDecode(locaData, j); |
| |
| if (offset > oldGlyfDataLength) { |
| offset = oldGlyfDataLength; |
| } |
| |
| locaEntries.push({ |
| index: i, |
| offset, |
| endOffset: 0 |
| }); |
| } |
| |
| locaEntries.sort((a, b) => { |
| return a.offset - b.offset; |
| }); |
| |
| for (i = 0; i < numGlyphs; i++) { |
| locaEntries[i].endOffset = locaEntries[i + 1].offset; |
| } |
| |
| locaEntries.sort((a, b) => { |
| return a.index - b.index; |
| }); |
| var missingGlyphs = Object.create(null); |
| var writeOffset = 0; |
| itemEncode(locaData, 0, writeOffset); |
| |
| for (i = 0, j = itemSize; i < numGlyphs; i++, j += itemSize) { |
| var glyphProfile = sanitizeGlyph(oldGlyfData, locaEntries[i].offset, locaEntries[i].endOffset, newGlyfData, writeOffset, hintsValid); |
| var newLength = glyphProfile.length; |
| |
| if (newLength === 0) { |
| missingGlyphs[i] = true; |
| } |
| |
| if (glyphProfile.sizeOfInstructions > maxSizeOfInstructions) { |
| maxSizeOfInstructions = glyphProfile.sizeOfInstructions; |
| } |
| |
| writeOffset += newLength; |
| itemEncode(locaData, j, writeOffset); |
| } |
| |
| if (writeOffset === 0) { |
| var simpleGlyph = new Uint8Array([0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 49, 0]); |
| |
| for (i = 0, j = itemSize; i < numGlyphsOut; i++, j += itemSize) { |
| itemEncode(locaData, j, simpleGlyph.length); |
| } |
| |
| glyf.data = simpleGlyph; |
| } else if (dupFirstEntry) { |
| var firstEntryLength = itemDecode(locaData, itemSize); |
| |
| if (newGlyfData.length > firstEntryLength + writeOffset) { |
| glyf.data = newGlyfData.subarray(0, firstEntryLength + writeOffset); |
| } else { |
| glyf.data = new Uint8Array(firstEntryLength + writeOffset); |
| glyf.data.set(newGlyfData.subarray(0, writeOffset)); |
| } |
| |
| glyf.data.set(newGlyfData.subarray(0, firstEntryLength), writeOffset); |
| itemEncode(loca.data, locaData.length - itemSize, writeOffset + firstEntryLength); |
| } else { |
| glyf.data = newGlyfData.subarray(0, writeOffset); |
| } |
| |
| return { |
| missingGlyphs, |
| maxSizeOfInstructions |
| }; |
| } |
| |
| function readPostScriptTable(post, propertiesObj, maxpNumGlyphs) { |
| var start = (font.start ? font.start : 0) + post.offset; |
| font.pos = start; |
| var length = post.length, |
| end = start + length; |
| var version = font.getInt32(); |
| font.skip(28); |
| var glyphNames; |
| var valid = true; |
| var i; |
| |
| switch (version) { |
| case 0x00010000: |
| glyphNames = MacStandardGlyphOrdering; |
| break; |
| |
| case 0x00020000: |
| var numGlyphs = font.getUint16(); |
| |
| if (numGlyphs !== maxpNumGlyphs) { |
| valid = false; |
| break; |
| } |
| |
| var glyphNameIndexes = []; |
| |
| for (i = 0; i < numGlyphs; ++i) { |
| var index = font.getUint16(); |
| |
| if (index >= 32768) { |
| valid = false; |
| break; |
| } |
| |
| glyphNameIndexes.push(index); |
| } |
| |
| if (!valid) { |
| break; |
| } |
| |
| var customNames = []; |
| var strBuf = []; |
| |
| while (font.pos < end) { |
| var stringLength = font.getByte(); |
| strBuf.length = stringLength; |
| |
| for (i = 0; i < stringLength; ++i) { |
| strBuf[i] = String.fromCharCode(font.getByte()); |
| } |
| |
| customNames.push(strBuf.join("")); |
| } |
| |
| glyphNames = []; |
| |
| for (i = 0; i < numGlyphs; ++i) { |
| var j = glyphNameIndexes[i]; |
| |
| if (j < 258) { |
| glyphNames.push(MacStandardGlyphOrdering[j]); |
| continue; |
| } |
| |
| glyphNames.push(customNames[j - 258]); |
| } |
| |
| break; |
| |
| case 0x00030000: |
| break; |
| |
| default: |
| (0, _util.warn)("Unknown/unsupported post table version " + version); |
| valid = false; |
| |
| if (propertiesObj.defaultEncoding) { |
| glyphNames = propertiesObj.defaultEncoding; |
| } |
| |
| break; |
| } |
| |
| propertiesObj.glyphNames = glyphNames; |
| return valid; |
| } |
| |
| function readNameTable(nameTable) { |
| var start = (font.start ? font.start : 0) + nameTable.offset; |
| font.pos = start; |
| var names = [[], []]; |
| var length = nameTable.length, |
| end = start + length; |
| var format = font.getUint16(); |
| var FORMAT_0_HEADER_LENGTH = 6; |
| |
| if (format !== 0 || length < FORMAT_0_HEADER_LENGTH) { |
| return names; |
| } |
| |
| var numRecords = font.getUint16(); |
| var stringsStart = font.getUint16(); |
| var records = []; |
| var NAME_RECORD_LENGTH = 12; |
| var i, ii; |
| |
| for (i = 0; i < numRecords && font.pos + NAME_RECORD_LENGTH <= end; i++) { |
| var r = { |
| platform: font.getUint16(), |
| encoding: font.getUint16(), |
| language: font.getUint16(), |
| name: font.getUint16(), |
| length: font.getUint16(), |
| offset: font.getUint16() |
| }; |
| |
| if (r.platform === 1 && r.encoding === 0 && r.language === 0 || r.platform === 3 && r.encoding === 1 && r.language === 0x409) { |
| records.push(r); |
| } |
| } |
| |
| for (i = 0, ii = records.length; i < ii; i++) { |
| var record = records[i]; |
| |
| if (record.length <= 0) { |
| continue; |
| } |
| |
| var pos = start + stringsStart + record.offset; |
| |
| if (pos + record.length > end) { |
| continue; |
| } |
| |
| font.pos = pos; |
| var nameIndex = record.name; |
| |
| if (record.encoding) { |
| var str = ""; |
| |
| for (var j = 0, jj = record.length; j < jj; j += 2) { |
| str += String.fromCharCode(font.getUint16()); |
| } |
| |
| names[1][nameIndex] = str; |
| } else { |
| names[0][nameIndex] = (0, _util.bytesToString)(font.getBytes(record.length)); |
| } |
| } |
| |
| return names; |
| } |
| |
| var TTOpsStackDeltas = [0, 0, 0, 0, 0, 0, 0, 0, -2, -2, -2, -2, 0, 0, -2, -5, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, -1, 0, -1, -1, -1, -1, 1, -1, -999, 0, 1, 0, -1, -2, 0, -1, -2, -1, -1, 0, -1, -1, 0, 0, -999, -999, -1, -1, -1, -1, -2, -999, -2, -2, -999, 0, -2, -2, 0, 0, -2, 0, -2, 0, 0, 0, -2, -1, -1, 1, 1, 0, 0, -1, -1, -1, -1, -1, -1, -1, 0, 0, -1, 0, -1, -1, 0, -999, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, -999, -999, -999, -999, -999, -1, -1, -2, -2, 0, 0, 0, 0, -1, -1, -999, -2, -2, 0, 0, -1, -2, -2, 0, 0, 0, -1, -1, -1, -2]; |
| |
| function sanitizeTTProgram(table, ttContext) { |
| var data = table.data; |
| var i = 0, |
| j, |
| n, |
| b, |
| funcId, |
| pc, |
| lastEndf = 0, |
| lastDeff = 0; |
| var stack = []; |
| var callstack = []; |
| var functionsCalled = []; |
| var tooComplexToFollowFunctions = ttContext.tooComplexToFollowFunctions; |
| var inFDEF = false, |
| ifLevel = 0, |
| inELSE = 0; |
| |
| for (var ii = data.length; i < ii;) { |
| var op = data[i++]; |
| |
| if (op === 0x40) { |
| n = data[i++]; |
| |
| if (inFDEF || inELSE) { |
| i += n; |
| } else { |
| for (j = 0; j < n; j++) { |
| stack.push(data[i++]); |
| } |
| } |
| } else if (op === 0x41) { |
| n = data[i++]; |
| |
| if (inFDEF || inELSE) { |
| i += n * 2; |
| } else { |
| for (j = 0; j < n; j++) { |
| b = data[i++]; |
| stack.push(b << 8 | data[i++]); |
| } |
| } |
| } else if ((op & 0xf8) === 0xb0) { |
| n = op - 0xb0 + 1; |
| |
| if (inFDEF || inELSE) { |
| i += n; |
| } else { |
| for (j = 0; j < n; j++) { |
| stack.push(data[i++]); |
| } |
| } |
| } else if ((op & 0xf8) === 0xb8) { |
| n = op - 0xb8 + 1; |
| |
| if (inFDEF || inELSE) { |
| i += n * 2; |
| } else { |
| for (j = 0; j < n; j++) { |
| b = data[i++]; |
| stack.push(b << 8 | data[i++]); |
| } |
| } |
| } else if (op === 0x2b && !tooComplexToFollowFunctions) { |
| if (!inFDEF && !inELSE) { |
| funcId = stack[stack.length - 1]; |
| |
| if (isNaN(funcId)) { |
| (0, _util.info)("TT: CALL empty stack (or invalid entry)."); |
| } else { |
| ttContext.functionsUsed[funcId] = true; |
| |
| if (funcId in ttContext.functionsStackDeltas) { |
| const newStackLength = stack.length + ttContext.functionsStackDeltas[funcId]; |
| |
| if (newStackLength < 0) { |
| (0, _util.warn)("TT: CALL invalid functions stack delta."); |
| ttContext.hintsValid = false; |
| return; |
| } |
| |
| stack.length = newStackLength; |
| } else if (funcId in ttContext.functionsDefined && !functionsCalled.includes(funcId)) { |
| callstack.push({ |
| data, |
| i, |
| stackTop: stack.length - 1 |
| }); |
| functionsCalled.push(funcId); |
| pc = ttContext.functionsDefined[funcId]; |
| |
| if (!pc) { |
| (0, _util.warn)("TT: CALL non-existent function"); |
| ttContext.hintsValid = false; |
| return; |
| } |
| |
| data = pc.data; |
| i = pc.i; |
| } |
| } |
| } |
| } else if (op === 0x2c && !tooComplexToFollowFunctions) { |
| if (inFDEF || inELSE) { |
| (0, _util.warn)("TT: nested FDEFs not allowed"); |
| tooComplexToFollowFunctions = true; |
| } |
| |
| inFDEF = true; |
| lastDeff = i; |
| funcId = stack.pop(); |
| ttContext.functionsDefined[funcId] = { |
| data, |
| i |
| }; |
| } else if (op === 0x2d) { |
| if (inFDEF) { |
| inFDEF = false; |
| lastEndf = i; |
| } else { |
| pc = callstack.pop(); |
| |
| if (!pc) { |
| (0, _util.warn)("TT: ENDF bad stack"); |
| ttContext.hintsValid = false; |
| return; |
| } |
| |
| funcId = functionsCalled.pop(); |
| data = pc.data; |
| i = pc.i; |
| ttContext.functionsStackDeltas[funcId] = stack.length - pc.stackTop; |
| } |
| } else if (op === 0x89) { |
| if (inFDEF || inELSE) { |
| (0, _util.warn)("TT: nested IDEFs not allowed"); |
| tooComplexToFollowFunctions = true; |
| } |
| |
| inFDEF = true; |
| lastDeff = i; |
| } else if (op === 0x58) { |
| ++ifLevel; |
| } else if (op === 0x1b) { |
| inELSE = ifLevel; |
| } else if (op === 0x59) { |
| if (inELSE === ifLevel) { |
| inELSE = 0; |
| } |
| |
| --ifLevel; |
| } else if (op === 0x1c) { |
| if (!inFDEF && !inELSE) { |
| var offset = stack[stack.length - 1]; |
| |
| if (offset > 0) { |
| i += offset - 1; |
| } |
| } |
| } |
| |
| if (!inFDEF && !inELSE) { |
| let stackDelta = 0; |
| |
| if (op <= 0x8e) { |
| stackDelta = TTOpsStackDeltas[op]; |
| } else if (op >= 0xc0 && op <= 0xdf) { |
| stackDelta = -1; |
| } else if (op >= 0xe0) { |
| stackDelta = -2; |
| } |
| |
| if (op >= 0x71 && op <= 0x75) { |
| n = stack.pop(); |
| |
| if (!isNaN(n)) { |
| stackDelta = -n * 2; |
| } |
| } |
| |
| while (stackDelta < 0 && stack.length > 0) { |
| stack.pop(); |
| stackDelta++; |
| } |
| |
| while (stackDelta > 0) { |
| stack.push(NaN); |
| stackDelta--; |
| } |
| } |
| } |
| |
| ttContext.tooComplexToFollowFunctions = tooComplexToFollowFunctions; |
| var content = [data]; |
| |
| if (i > data.length) { |
| content.push(new Uint8Array(i - data.length)); |
| } |
| |
| if (lastDeff > lastEndf) { |
| (0, _util.warn)("TT: complementing a missing function tail"); |
| content.push(new Uint8Array([0x22, 0x2d])); |
| } |
| |
| foldTTTable(table, content); |
| } |
| |
| function checkInvalidFunctions(ttContext, maxFunctionDefs) { |
| if (ttContext.tooComplexToFollowFunctions) { |
| return; |
| } |
| |
| if (ttContext.functionsDefined.length > maxFunctionDefs) { |
| (0, _util.warn)("TT: more functions defined than expected"); |
| ttContext.hintsValid = false; |
| return; |
| } |
| |
| for (var j = 0, jj = ttContext.functionsUsed.length; j < jj; j++) { |
| if (j > maxFunctionDefs) { |
| (0, _util.warn)("TT: invalid function id: " + j); |
| ttContext.hintsValid = false; |
| return; |
| } |
| |
| if (ttContext.functionsUsed[j] && !ttContext.functionsDefined[j]) { |
| (0, _util.warn)("TT: undefined function: " + j); |
| ttContext.hintsValid = false; |
| return; |
| } |
| } |
| } |
| |
| function foldTTTable(table, content) { |
| if (content.length > 1) { |
| var newLength = 0; |
| var j, jj; |
| |
| for (j = 0, jj = content.length; j < jj; j++) { |
| newLength += content[j].length; |
| } |
| |
| newLength = newLength + 3 & ~3; |
| var result = new Uint8Array(newLength); |
| var pos = 0; |
| |
| for (j = 0, jj = content.length; j < jj; j++) { |
| result.set(content[j], pos); |
| pos += content[j].length; |
| } |
| |
| table.data = result; |
| table.length = newLength; |
| } |
| } |
| |
| function sanitizeTTPrograms(fpgm, prep, cvt, maxFunctionDefs) { |
| var ttContext = { |
| functionsDefined: [], |
| functionsUsed: [], |
| functionsStackDeltas: [], |
| tooComplexToFollowFunctions: false, |
| hintsValid: true |
| }; |
| |
| if (fpgm) { |
| sanitizeTTProgram(fpgm, ttContext); |
| } |
| |
| if (prep) { |
| sanitizeTTProgram(prep, ttContext); |
| } |
| |
| if (fpgm) { |
| checkInvalidFunctions(ttContext, maxFunctionDefs); |
| } |
| |
| if (cvt && cvt.length & 1) { |
| var cvtData = new Uint8Array(cvt.length + 1); |
| cvtData.set(cvt.data); |
| cvt.data = cvtData; |
| } |
| |
| return ttContext.hintsValid; |
| } |
| |
| font = new _stream.Stream(new Uint8Array(font.getBytes())); |
| let header, tables; |
| |
| if (isTrueTypeCollectionFile(font)) { |
| const ttcData = readTrueTypeCollectionData(font, this.name); |
| header = ttcData.header; |
| tables = ttcData.tables; |
| } else { |
| header = readOpenTypeHeader(font); |
| tables = readTables(font, header.numTables); |
| } |
| |
| let cff, cffFile; |
| var isTrueType = !tables["CFF "]; |
| |
| if (!isTrueType) { |
| const isComposite = properties.composite && ((properties.cidToGidMap || []).length > 0 || !(properties.cMap instanceof _cmap.IdentityCMap)); |
| |
| if (header.version === "OTTO" && !isComposite || !tables.head || !tables.hhea || !tables.maxp || !tables.post) { |
| cffFile = new _stream.Stream(tables["CFF "].data); |
| cff = new CFFFont(cffFile, properties); |
| adjustWidths(properties); |
| return this.convert(name, cff, properties); |
| } |
| |
| delete tables.glyf; |
| delete tables.loca; |
| delete tables.fpgm; |
| delete tables.prep; |
| delete tables["cvt "]; |
| this.isOpenType = true; |
| } else { |
| if (!tables.loca) { |
| throw new _util.FormatError('Required "loca" table is not found'); |
| } |
| |
| if (!tables.glyf) { |
| (0, _util.warn)('Required "glyf" table is not found -- trying to recover.'); |
| tables.glyf = { |
| tag: "glyf", |
| data: new Uint8Array(0) |
| }; |
| } |
| |
| this.isOpenType = false; |
| } |
| |
| if (!tables.maxp) { |
| throw new _util.FormatError('Required "maxp" table is not found'); |
| } |
| |
| font.pos = (font.start || 0) + tables.maxp.offset; |
| var version = font.getInt32(); |
| const numGlyphs = font.getUint16(); |
| let numGlyphsOut = numGlyphs + 1; |
| let dupFirstEntry = true; |
| |
| if (numGlyphsOut > 0xffff) { |
| dupFirstEntry = false; |
| numGlyphsOut = numGlyphs; |
| (0, _util.warn)("Not enough space in glyfs to duplicate first glyph."); |
| } |
| |
| var maxFunctionDefs = 0; |
| var maxSizeOfInstructions = 0; |
| |
| if (version >= 0x00010000 && tables.maxp.length >= 22) { |
| font.pos += 8; |
| var maxZones = font.getUint16(); |
| |
| if (maxZones > 2) { |
| tables.maxp.data[14] = 0; |
| tables.maxp.data[15] = 2; |
| } |
| |
| font.pos += 4; |
| maxFunctionDefs = font.getUint16(); |
| font.pos += 4; |
| maxSizeOfInstructions = font.getUint16(); |
| } |
| |
| tables.maxp.data[4] = numGlyphsOut >> 8; |
| tables.maxp.data[5] = numGlyphsOut & 255; |
| var hintsValid = sanitizeTTPrograms(tables.fpgm, tables.prep, tables["cvt "], maxFunctionDefs); |
| |
| if (!hintsValid) { |
| delete tables.fpgm; |
| delete tables.prep; |
| delete tables["cvt "]; |
| } |
| |
| sanitizeMetrics(font, tables.hhea, tables.hmtx, numGlyphsOut, dupFirstEntry); |
| |
| if (!tables.head) { |
| throw new _util.FormatError('Required "head" table is not found'); |
| } |
| |
| sanitizeHead(tables.head, numGlyphs, isTrueType ? tables.loca.length : 0); |
| var missingGlyphs = Object.create(null); |
| |
| if (isTrueType) { |
| var isGlyphLocationsLong = int16(tables.head.data[50], tables.head.data[51]); |
| var glyphsInfo = sanitizeGlyphLocations(tables.loca, tables.glyf, numGlyphs, isGlyphLocationsLong, hintsValid, dupFirstEntry, maxSizeOfInstructions); |
| missingGlyphs = glyphsInfo.missingGlyphs; |
| |
| if (version >= 0x00010000 && tables.maxp.length >= 22) { |
| tables.maxp.data[26] = glyphsInfo.maxSizeOfInstructions >> 8; |
| tables.maxp.data[27] = glyphsInfo.maxSizeOfInstructions & 255; |
| } |
| } |
| |
| if (!tables.hhea) { |
| throw new _util.FormatError('Required "hhea" table is not found'); |
| } |
| |
| if (tables.hhea.data[10] === 0 && tables.hhea.data[11] === 0) { |
| tables.hhea.data[10] = 0xff; |
| tables.hhea.data[11] = 0xff; |
| } |
| |
| var metricsOverride = { |
| unitsPerEm: int16(tables.head.data[18], tables.head.data[19]), |
| yMax: int16(tables.head.data[42], tables.head.data[43]), |
| yMin: signedInt16(tables.head.data[38], tables.head.data[39]), |
| ascent: int16(tables.hhea.data[4], tables.hhea.data[5]), |
| descent: signedInt16(tables.hhea.data[6], tables.hhea.data[7]) |
| }; |
| this.ascent = metricsOverride.ascent / metricsOverride.unitsPerEm; |
| this.descent = metricsOverride.descent / metricsOverride.unitsPerEm; |
| |
| if (tables.post) { |
| readPostScriptTable(tables.post, properties, numGlyphs); |
| } |
| |
| tables.post = { |
| tag: "post", |
| data: createPostTable(properties) |
| }; |
| const charCodeToGlyphId = []; |
| |
| function hasGlyph(glyphId) { |
| return !missingGlyphs[glyphId]; |
| } |
| |
| if (properties.composite) { |
| var cidToGidMap = properties.cidToGidMap || []; |
| var isCidToGidMapEmpty = cidToGidMap.length === 0; |
| properties.cMap.forEach(function (charCode, cid) { |
| if (cid > 0xffff) { |
| throw new _util.FormatError("Max size of CID is 65,535"); |
| } |
| |
| var glyphId = -1; |
| |
| if (isCidToGidMapEmpty) { |
| glyphId = cid; |
| } else if (cidToGidMap[cid] !== undefined) { |
| glyphId = cidToGidMap[cid]; |
| } |
| |
| if (glyphId >= 0 && glyphId < numGlyphs && hasGlyph(glyphId)) { |
| charCodeToGlyphId[charCode] = glyphId; |
| } |
| }); |
| } else { |
| var cmapTable = readCmapTable(tables.cmap, font, this.isSymbolicFont, properties.hasEncoding); |
| var cmapPlatformId = cmapTable.platformId; |
| var cmapEncodingId = cmapTable.encodingId; |
| var cmapMappings = cmapTable.mappings; |
| var cmapMappingsLength = cmapMappings.length; |
| let baseEncoding = []; |
| |
| if (properties.hasEncoding && (properties.baseEncodingName === "MacRomanEncoding" || properties.baseEncodingName === "WinAnsiEncoding")) { |
| baseEncoding = (0, _encodings.getEncoding)(properties.baseEncodingName); |
| } |
| |
| if (properties.hasEncoding && !this.isSymbolicFont && (cmapPlatformId === 3 && cmapEncodingId === 1 || cmapPlatformId === 1 && cmapEncodingId === 0)) { |
| var glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)(); |
| |
| for (let charCode = 0; charCode < 256; charCode++) { |
| var glyphName, standardGlyphName; |
| |
| if (this.differences && charCode in this.differences) { |
| glyphName = this.differences[charCode]; |
| } else if (charCode in baseEncoding && baseEncoding[charCode] !== "") { |
| glyphName = baseEncoding[charCode]; |
| } else { |
| glyphName = _encodings.StandardEncoding[charCode]; |
| } |
| |
| if (!glyphName) { |
| continue; |
| } |
| |
| standardGlyphName = recoverGlyphName(glyphName, glyphsUnicodeMap); |
| var unicodeOrCharCode; |
| |
| if (cmapPlatformId === 3 && cmapEncodingId === 1) { |
| unicodeOrCharCode = glyphsUnicodeMap[standardGlyphName]; |
| } else if (cmapPlatformId === 1 && cmapEncodingId === 0) { |
| unicodeOrCharCode = _encodings.MacRomanEncoding.indexOf(standardGlyphName); |
| } |
| |
| for (let i = 0; i < cmapMappingsLength; ++i) { |
| if (cmapMappings[i].charCode !== unicodeOrCharCode) { |
| continue; |
| } |
| |
| charCodeToGlyphId[charCode] = cmapMappings[i].glyphId; |
| break; |
| } |
| } |
| } else if (cmapPlatformId === 0) { |
| for (let i = 0; i < cmapMappingsLength; ++i) { |
| charCodeToGlyphId[cmapMappings[i].charCode] = cmapMappings[i].glyphId; |
| } |
| } else { |
| for (let i = 0; i < cmapMappingsLength; ++i) { |
| let charCode = cmapMappings[i].charCode; |
| |
| if (cmapPlatformId === 3 && charCode >= 0xf000 && charCode <= 0xf0ff) { |
| charCode &= 0xff; |
| } |
| |
| charCodeToGlyphId[charCode] = cmapMappings[i].glyphId; |
| } |
| } |
| |
| if (properties.glyphNames && baseEncoding.length) { |
| for (let i = 0; i < 256; ++i) { |
| if (charCodeToGlyphId[i] === undefined && baseEncoding[i]) { |
| glyphName = baseEncoding[i]; |
| const glyphId = properties.glyphNames.indexOf(glyphName); |
| |
| if (glyphId > 0 && hasGlyph(glyphId)) { |
| charCodeToGlyphId[i] = glyphId; |
| } |
| } |
| } |
| } |
| } |
| |
| if (charCodeToGlyphId.length === 0) { |
| charCodeToGlyphId[0] = 0; |
| } |
| |
| let glyphZeroId = numGlyphsOut - 1; |
| |
| if (!dupFirstEntry) { |
| glyphZeroId = 0; |
| } |
| |
| var newMapping = adjustMapping(charCodeToGlyphId, hasGlyph, glyphZeroId); |
| this.toFontChar = newMapping.toFontChar; |
| tables.cmap = { |
| tag: "cmap", |
| data: createCmapTable(newMapping.charCodeToGlyphId, numGlyphsOut) |
| }; |
| |
| if (!tables["OS/2"] || !validateOS2Table(tables["OS/2"], font)) { |
| tables["OS/2"] = { |
| tag: "OS/2", |
| data: createOS2Table(properties, newMapping.charCodeToGlyphId, metricsOverride) |
| }; |
| } |
| |
| if (!isTrueType) { |
| try { |
| cffFile = new _stream.Stream(tables["CFF "].data); |
| var parser = new _cff_parser.CFFParser(cffFile, properties, SEAC_ANALYSIS_ENABLED); |
| cff = parser.parse(); |
| cff.duplicateFirstGlyph(); |
| var compiler = new _cff_parser.CFFCompiler(cff); |
| tables["CFF "].data = compiler.compile(); |
| } catch (e) { |
| (0, _util.warn)("Failed to compile font " + properties.loadedName); |
| } |
| } |
| |
| if (!tables.name) { |
| tables.name = { |
| tag: "name", |
| data: createNameTable(this.name) |
| }; |
| } else { |
| var namePrototype = readNameTable(tables.name); |
| tables.name.data = createNameTable(name, namePrototype); |
| } |
| |
| var builder = new OpenTypeFileBuilder(header.version); |
| |
| for (var tableTag in tables) { |
| builder.addTable(tableTag, tables[tableTag].data); |
| } |
| |
| return builder.toArray(); |
| }, |
| convert: function Font_convert(fontName, font, properties) { |
| properties.fixedPitch = false; |
| |
| if (properties.builtInEncoding) { |
| adjustToUnicode(properties, properties.builtInEncoding); |
| } |
| |
| let glyphZeroId = 1; |
| |
| if (font instanceof CFFFont) { |
| glyphZeroId = font.numGlyphs - 1; |
| } |
| |
| var mapping = font.getGlyphMapping(properties); |
| var newMapping = adjustMapping(mapping, font.hasGlyphId.bind(font), glyphZeroId); |
| this.toFontChar = newMapping.toFontChar; |
| var numGlyphs = font.numGlyphs; |
| |
| function getCharCodes(charCodeToGlyphId, glyphId) { |
| var charCodes = null; |
| |
| for (var charCode in charCodeToGlyphId) { |
| if (glyphId === charCodeToGlyphId[charCode]) { |
| if (!charCodes) { |
| charCodes = []; |
| } |
| |
| charCodes.push(charCode | 0); |
| } |
| } |
| |
| return charCodes; |
| } |
| |
| function createCharCode(charCodeToGlyphId, glyphId) { |
| for (var charCode in charCodeToGlyphId) { |
| if (glyphId === charCodeToGlyphId[charCode]) { |
| return charCode | 0; |
| } |
| } |
| |
| newMapping.charCodeToGlyphId[newMapping.nextAvailableFontCharCode] = glyphId; |
| return newMapping.nextAvailableFontCharCode++; |
| } |
| |
| var seacs = font.seacs; |
| |
| if (SEAC_ANALYSIS_ENABLED && seacs && seacs.length) { |
| var matrix = properties.fontMatrix || _util.FONT_IDENTITY_MATRIX; |
| var charset = font.getCharset(); |
| var seacMap = Object.create(null); |
| |
| for (var glyphId in seacs) { |
| glyphId |= 0; |
| var seac = seacs[glyphId]; |
| var baseGlyphName = _encodings.StandardEncoding[seac[2]]; |
| var accentGlyphName = _encodings.StandardEncoding[seac[3]]; |
| var baseGlyphId = charset.indexOf(baseGlyphName); |
| var accentGlyphId = charset.indexOf(accentGlyphName); |
| |
| if (baseGlyphId < 0 || accentGlyphId < 0) { |
| continue; |
| } |
| |
| var accentOffset = { |
| x: seac[0] * matrix[0] + seac[1] * matrix[2] + matrix[4], |
| y: seac[0] * matrix[1] + seac[1] * matrix[3] + matrix[5] |
| }; |
| var charCodes = getCharCodes(mapping, glyphId); |
| |
| if (!charCodes) { |
| continue; |
| } |
| |
| for (let i = 0, ii = charCodes.length; i < ii; i++) { |
| var charCode = charCodes[i]; |
| var charCodeToGlyphId = newMapping.charCodeToGlyphId; |
| var baseFontCharCode = createCharCode(charCodeToGlyphId, baseGlyphId); |
| var accentFontCharCode = createCharCode(charCodeToGlyphId, accentGlyphId); |
| seacMap[charCode] = { |
| baseFontCharCode, |
| accentFontCharCode, |
| accentOffset |
| }; |
| } |
| } |
| |
| properties.seacMap = seacMap; |
| } |
| |
| var unitsPerEm = 1 / (properties.fontMatrix || _util.FONT_IDENTITY_MATRIX)[0]; |
| var builder = new OpenTypeFileBuilder("\x4F\x54\x54\x4F"); |
| builder.addTable("CFF ", font.data); |
| builder.addTable("OS/2", createOS2Table(properties, newMapping.charCodeToGlyphId)); |
| builder.addTable("cmap", createCmapTable(newMapping.charCodeToGlyphId, numGlyphs)); |
| builder.addTable("head", "\x00\x01\x00\x00" + "\x00\x00\x10\x00" + "\x00\x00\x00\x00" + "\x5F\x0F\x3C\xF5" + "\x00\x00" + safeString16(unitsPerEm) + "\x00\x00\x00\x00\x9e\x0b\x7e\x27" + "\x00\x00\x00\x00\x9e\x0b\x7e\x27" + "\x00\x00" + safeString16(properties.descent) + "\x0F\xFF" + safeString16(properties.ascent) + string16(properties.italicAngle ? 2 : 0) + "\x00\x11" + "\x00\x00" + "\x00\x00" + "\x00\x00"); |
| builder.addTable("hhea", "\x00\x01\x00\x00" + safeString16(properties.ascent) + safeString16(properties.descent) + "\x00\x00" + "\xFF\xFF" + "\x00\x00" + "\x00\x00" + "\x00\x00" + safeString16(properties.capHeight) + safeString16(Math.tan(properties.italicAngle) * properties.xHeight) + "\x00\x00" + "\x00\x00" + "\x00\x00" + "\x00\x00" + "\x00\x00" + "\x00\x00" + string16(numGlyphs)); |
| builder.addTable("hmtx", function fontFieldsHmtx() { |
| var charstrings = font.charstrings; |
| var cffWidths = font.cff ? font.cff.widths : null; |
| var hmtx = "\x00\x00\x00\x00"; |
| |
| for (let i = 1, ii = numGlyphs; i < ii; i++) { |
| var width = 0; |
| |
| if (charstrings) { |
| var charstring = charstrings[i - 1]; |
| width = "width" in charstring ? charstring.width : 0; |
| } else if (cffWidths) { |
| width = Math.ceil(cffWidths[i] || 0); |
| } |
| |
| hmtx += string16(width) + string16(0); |
| } |
| |
| return hmtx; |
| }()); |
| builder.addTable("maxp", "\x00\x00\x50\x00" + string16(numGlyphs)); |
| builder.addTable("name", createNameTable(fontName)); |
| builder.addTable("post", createPostTable(properties)); |
| return builder.toArray(); |
| }, |
| |
| get spaceWidth() { |
| var possibleSpaceReplacements = ["space", "minus", "one", "i", "I"]; |
| var width; |
| |
| for (var i = 0, ii = possibleSpaceReplacements.length; i < ii; i++) { |
| var glyphName = possibleSpaceReplacements[i]; |
| |
| if (glyphName in this.widths) { |
| width = this.widths[glyphName]; |
| break; |
| } |
| |
| var glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)(); |
| var glyphUnicode = glyphsUnicodeMap[glyphName]; |
| var charcode = 0; |
| |
| if (this.composite && this.cMap.contains(glyphUnicode)) { |
| charcode = this.cMap.lookup(glyphUnicode); |
| } |
| |
| if (!charcode && this.toUnicode) { |
| charcode = this.toUnicode.charCodeOf(glyphUnicode); |
| } |
| |
| if (charcode <= 0) { |
| charcode = glyphUnicode; |
| } |
| |
| width = this.widths[charcode]; |
| |
| if (width) { |
| break; |
| } |
| } |
| |
| width = width || this.defaultWidth; |
| return (0, _util.shadow)(this, "spaceWidth", width); |
| }, |
| |
| charToGlyph: function Font_charToGlyph(charcode, isSpace) { |
| var fontCharCode, width, operatorListId; |
| var widthCode = charcode; |
| |
| if (this.cMap && this.cMap.contains(charcode)) { |
| widthCode = this.cMap.lookup(charcode); |
| } |
| |
| width = this.widths[widthCode]; |
| width = (0, _util.isNum)(width) ? width : this.defaultWidth; |
| var vmetric = this.vmetrics && this.vmetrics[widthCode]; |
| let unicode = this.toUnicode.get(charcode) || this.fallbackToUnicode.get(charcode) || charcode; |
| |
| if (typeof unicode === "number") { |
| unicode = String.fromCharCode(unicode); |
| } |
| |
| var isInFont = (charcode in this.toFontChar); |
| fontCharCode = this.toFontChar[charcode] || charcode; |
| |
| if (this.missingFile) { |
| const glyphName = this.differences[charcode] || this.defaultEncoding[charcode]; |
| |
| if ((glyphName === ".notdef" || glyphName === "") && this.type === "Type1") { |
| fontCharCode = 0x20; |
| } |
| |
| fontCharCode = (0, _unicode.mapSpecialUnicodeValues)(fontCharCode); |
| } |
| |
| if (this.isType3Font) { |
| operatorListId = fontCharCode; |
| } |
| |
| var accent = null; |
| |
| if (this.seacMap && this.seacMap[charcode]) { |
| isInFont = true; |
| var seac = this.seacMap[charcode]; |
| fontCharCode = seac.baseFontCharCode; |
| accent = { |
| fontChar: String.fromCodePoint(seac.accentFontCharCode), |
| offset: seac.accentOffset |
| }; |
| } |
| |
| let fontChar = ""; |
| |
| if (typeof fontCharCode === "number") { |
| if (fontCharCode <= 0x10ffff) { |
| fontChar = String.fromCodePoint(fontCharCode); |
| } else { |
| (0, _util.warn)(`charToGlyph - invalid fontCharCode: ${fontCharCode}`); |
| } |
| } |
| |
| var glyph = this.glyphCache[charcode]; |
| |
| if (!glyph || !glyph.matchesForCache(fontChar, unicode, accent, width, vmetric, operatorListId, isSpace, isInFont)) { |
| glyph = new Glyph(fontChar, unicode, accent, width, vmetric, operatorListId, isSpace, isInFont); |
| this.glyphCache[charcode] = glyph; |
| } |
| |
| return glyph; |
| }, |
| charsToGlyphs: function Font_charsToGlyphs(chars) { |
| var charsCache = this.charsCache; |
| var glyphs, glyph, charcode; |
| |
| if (charsCache) { |
| glyphs = charsCache[chars]; |
| |
| if (glyphs) { |
| return glyphs; |
| } |
| } |
| |
| if (!charsCache) { |
| charsCache = this.charsCache = Object.create(null); |
| } |
| |
| glyphs = []; |
| var charsCacheKey = chars; |
| var i = 0, |
| ii; |
| |
| if (this.cMap) { |
| var c = Object.create(null); |
| |
| while (i < chars.length) { |
| this.cMap.readCharCode(chars, i, c); |
| charcode = c.charcode; |
| var length = c.length; |
| i += length; |
| var isSpace = length === 1 && chars.charCodeAt(i - 1) === 0x20; |
| glyph = this.charToGlyph(charcode, isSpace); |
| glyphs.push(glyph); |
| } |
| } else { |
| for (i = 0, ii = chars.length; i < ii; ++i) { |
| charcode = chars.charCodeAt(i); |
| glyph = this.charToGlyph(charcode, charcode === 0x20); |
| glyphs.push(glyph); |
| } |
| } |
| |
| return charsCache[charsCacheKey] = glyphs; |
| }, |
| |
| get glyphCacheValues() { |
| return Object.values(this.glyphCache); |
| } |
| |
| }; |
| return Font; |
| }(); |
| |
| exports.Font = Font; |
| |
| var ErrorFont = function ErrorFontClosure() { |
| function ErrorFont(error) { |
| this.error = error; |
| this.loadedName = "g_font_error"; |
| this.missingFile = true; |
| } |
| |
| ErrorFont.prototype = { |
| charsToGlyphs: function ErrorFont_charsToGlyphs() { |
| return []; |
| }, |
| |
| exportData(extraProperties = false) { |
| return { |
| error: this.error |
| }; |
| } |
| |
| }; |
| return ErrorFont; |
| }(); |
| |
| exports.ErrorFont = ErrorFont; |
| |
| function type1FontGlyphMapping(properties, builtInEncoding, glyphNames) { |
| var charCodeToGlyphId = Object.create(null); |
| var glyphId, charCode, baseEncoding; |
| var isSymbolicFont = !!(properties.flags & FontFlags.Symbolic); |
| |
| if (properties.baseEncodingName) { |
| baseEncoding = (0, _encodings.getEncoding)(properties.baseEncodingName); |
| |
| for (charCode = 0; charCode < baseEncoding.length; charCode++) { |
| glyphId = glyphNames.indexOf(baseEncoding[charCode]); |
| |
| if (glyphId >= 0) { |
| charCodeToGlyphId[charCode] = glyphId; |
| } else { |
| charCodeToGlyphId[charCode] = 0; |
| } |
| } |
| } else if (isSymbolicFont) { |
| for (charCode in builtInEncoding) { |
| charCodeToGlyphId[charCode] = builtInEncoding[charCode]; |
| } |
| } else { |
| baseEncoding = _encodings.StandardEncoding; |
| |
| for (charCode = 0; charCode < baseEncoding.length; charCode++) { |
| glyphId = glyphNames.indexOf(baseEncoding[charCode]); |
| |
| if (glyphId >= 0) { |
| charCodeToGlyphId[charCode] = glyphId; |
| } else { |
| charCodeToGlyphId[charCode] = 0; |
| } |
| } |
| } |
| |
| var differences = properties.differences, |
| glyphsUnicodeMap; |
| |
| if (differences) { |
| for (charCode in differences) { |
| var glyphName = differences[charCode]; |
| glyphId = glyphNames.indexOf(glyphName); |
| |
| if (glyphId === -1) { |
| if (!glyphsUnicodeMap) { |
| glyphsUnicodeMap = (0, _glyphlist.getGlyphsUnicode)(); |
| } |
| |
| var standardGlyphName = recoverGlyphName(glyphName, glyphsUnicodeMap); |
| |
| if (standardGlyphName !== glyphName) { |
| glyphId = glyphNames.indexOf(standardGlyphName); |
| } |
| } |
| |
| if (glyphId >= 0) { |
| charCodeToGlyphId[charCode] = glyphId; |
| } else { |
| charCodeToGlyphId[charCode] = 0; |
| } |
| } |
| } |
| |
| return charCodeToGlyphId; |
| } |
| |
| var Type1Font = function Type1FontClosure() { |
| function findBlock(streamBytes, signature, startIndex) { |
| var streamBytesLength = streamBytes.length; |
| var signatureLength = signature.length; |
| var scanLength = streamBytesLength - signatureLength; |
| var i = startIndex, |
| j, |
| found = false; |
| |
| while (i < scanLength) { |
| j = 0; |
| |
| while (j < signatureLength && streamBytes[i + j] === signature[j]) { |
| j++; |
| } |
| |
| if (j >= signatureLength) { |
| i += j; |
| |
| while (i < streamBytesLength && (0, _core_utils.isWhiteSpace)(streamBytes[i])) { |
| i++; |
| } |
| |
| found = true; |
| break; |
| } |
| |
| i++; |
| } |
| |
| return { |
| found, |
| length: i |
| }; |
| } |
| |
| function getHeaderBlock(stream, suggestedLength) { |
| var EEXEC_SIGNATURE = [0x65, 0x65, 0x78, 0x65, 0x63]; |
| var streamStartPos = stream.pos; |
| var headerBytes, headerBytesLength, block; |
| |
| try { |
| headerBytes = stream.getBytes(suggestedLength); |
| headerBytesLength = headerBytes.length; |
| } catch (ex) { |
| if (ex instanceof _core_utils.MissingDataException) { |
| throw ex; |
| } |
| } |
| |
| if (headerBytesLength === suggestedLength) { |
| block = findBlock(headerBytes, EEXEC_SIGNATURE, suggestedLength - 2 * EEXEC_SIGNATURE.length); |
| |
| if (block.found && block.length === suggestedLength) { |
| return { |
| stream: new _stream.Stream(headerBytes), |
| length: suggestedLength |
| }; |
| } |
| } |
| |
| (0, _util.warn)('Invalid "Length1" property in Type1 font -- trying to recover.'); |
| stream.pos = streamStartPos; |
| var SCAN_BLOCK_LENGTH = 2048; |
| var actualLength; |
| |
| while (true) { |
| var scanBytes = stream.peekBytes(SCAN_BLOCK_LENGTH); |
| block = findBlock(scanBytes, EEXEC_SIGNATURE, 0); |
| |
| if (block.length === 0) { |
| break; |
| } |
| |
| stream.pos += block.length; |
| |
| if (block.found) { |
| actualLength = stream.pos - streamStartPos; |
| break; |
| } |
| } |
| |
| stream.pos = streamStartPos; |
| |
| if (actualLength) { |
| return { |
| stream: new _stream.Stream(stream.getBytes(actualLength)), |
| length: actualLength |
| }; |
| } |
| |
| (0, _util.warn)('Unable to recover "Length1" property in Type1 font -- using as is.'); |
| return { |
| stream: new _stream.Stream(stream.getBytes(suggestedLength)), |
| length: suggestedLength |
| }; |
| } |
| |
| function getEexecBlock(stream, suggestedLength) { |
| var eexecBytes = stream.getBytes(); |
| return { |
| stream: new _stream.Stream(eexecBytes), |
| length: eexecBytes.length |
| }; |
| } |
| |
| function Type1Font(name, file, properties) { |
| var PFB_HEADER_SIZE = 6; |
| var headerBlockLength = properties.length1; |
| var eexecBlockLength = properties.length2; |
| var pfbHeader = file.peekBytes(PFB_HEADER_SIZE); |
| var pfbHeaderPresent = pfbHeader[0] === 0x80 && pfbHeader[1] === 0x01; |
| |
| if (pfbHeaderPresent) { |
| file.skip(PFB_HEADER_SIZE); |
| headerBlockLength = pfbHeader[5] << 24 | pfbHeader[4] << 16 | pfbHeader[3] << 8 | pfbHeader[2]; |
| } |
| |
| var headerBlock = getHeaderBlock(file, headerBlockLength); |
| var headerBlockParser = new _type1_parser.Type1Parser(headerBlock.stream, false, SEAC_ANALYSIS_ENABLED); |
| headerBlockParser.extractFontHeader(properties); |
| |
| if (pfbHeaderPresent) { |
| pfbHeader = file.getBytes(PFB_HEADER_SIZE); |
| eexecBlockLength = pfbHeader[5] << 24 | pfbHeader[4] << 16 | pfbHeader[3] << 8 | pfbHeader[2]; |
| } |
| |
| var eexecBlock = getEexecBlock(file, eexecBlockLength); |
| var eexecBlockParser = new _type1_parser.Type1Parser(eexecBlock.stream, true, SEAC_ANALYSIS_ENABLED); |
| var data = eexecBlockParser.extractFontProgram(properties); |
| |
| for (const key in data.properties) { |
| properties[key] = data.properties[key]; |
| } |
| |
| var charstrings = data.charstrings; |
| var type2Charstrings = this.getType2Charstrings(charstrings); |
| var subrs = this.getType2Subrs(data.subrs); |
| this.charstrings = charstrings; |
| this.data = this.wrap(name, type2Charstrings, this.charstrings, subrs, properties); |
| this.seacs = this.getSeacs(data.charstrings); |
| } |
| |
| Type1Font.prototype = { |
| get numGlyphs() { |
| return this.charstrings.length + 1; |
| }, |
| |
| getCharset: function Type1Font_getCharset() { |
| var charset = [".notdef"]; |
| var charstrings = this.charstrings; |
| |
| for (var glyphId = 0; glyphId < charstrings.length; glyphId++) { |
| charset.push(charstrings[glyphId].glyphName); |
| } |
| |
| return charset; |
| }, |
| getGlyphMapping: function Type1Font_getGlyphMapping(properties) { |
| var charstrings = this.charstrings; |
| |
| if (properties.composite) { |
| const charCodeToGlyphId = Object.create(null); |
| |
| for (let glyphId = 0, charstringsLen = charstrings.length; glyphId < charstringsLen; glyphId++) { |
| const charCode = properties.cMap.charCodeOf(glyphId); |
| charCodeToGlyphId[charCode] = glyphId + 1; |
| } |
| |
| return charCodeToGlyphId; |
| } |
| |
| var glyphNames = [".notdef"], |
| glyphId; |
| |
| for (glyphId = 0; glyphId < charstrings.length; glyphId++) { |
| glyphNames.push(charstrings[glyphId].glyphName); |
| } |
| |
| var encoding = properties.builtInEncoding; |
| |
| if (encoding) { |
| var builtInEncoding = Object.create(null); |
| |
| for (var charCode in encoding) { |
| glyphId = glyphNames.indexOf(encoding[charCode]); |
| |
| if (glyphId >= 0) { |
| builtInEncoding[charCode] = glyphId; |
| } |
| } |
| } |
| |
| return type1FontGlyphMapping(properties, builtInEncoding, glyphNames); |
| }, |
| hasGlyphId: function Type1Font_hasGlyphID(id) { |
| if (id < 0 || id >= this.numGlyphs) { |
| return false; |
| } |
| |
| if (id === 0) { |
| return true; |
| } |
| |
| var glyph = this.charstrings[id - 1]; |
| return glyph.charstring.length > 0; |
| }, |
| getSeacs: function Type1Font_getSeacs(charstrings) { |
| var i, ii; |
| var seacMap = []; |
| |
| for (i = 0, ii = charstrings.length; i < ii; i++) { |
| var charstring = charstrings[i]; |
| |
| if (charstring.seac) { |
| seacMap[i + 1] = charstring.seac; |
| } |
| } |
| |
| return seacMap; |
| }, |
| getType2Charstrings: function Type1Font_getType2Charstrings(type1Charstrings) { |
| var type2Charstrings = []; |
| |
| for (var i = 0, ii = type1Charstrings.length; i < ii; i++) { |
| type2Charstrings.push(type1Charstrings[i].charstring); |
| } |
| |
| return type2Charstrings; |
| }, |
| getType2Subrs: function Type1Font_getType2Subrs(type1Subrs) { |
| var bias = 0; |
| var count = type1Subrs.length; |
| |
| if (count < 1133) { |
| bias = 107; |
| } else if (count < 33769) { |
| bias = 1131; |
| } else { |
| bias = 32768; |
| } |
| |
| var type2Subrs = []; |
| var i; |
| |
| for (i = 0; i < bias; i++) { |
| type2Subrs.push([0x0b]); |
| } |
| |
| for (i = 0; i < count; i++) { |
| type2Subrs.push(type1Subrs[i]); |
| } |
| |
| return type2Subrs; |
| }, |
| wrap: function Type1Font_wrap(name, glyphs, charstrings, subrs, properties) { |
| var cff = new _cff_parser.CFF(); |
| cff.header = new _cff_parser.CFFHeader(1, 0, 4, 4); |
| cff.names = [name]; |
| var topDict = new _cff_parser.CFFTopDict(); |
| topDict.setByName("version", 391); |
| topDict.setByName("Notice", 392); |
| topDict.setByName("FullName", 393); |
| topDict.setByName("FamilyName", 394); |
| topDict.setByName("Weight", 395); |
| topDict.setByName("Encoding", null); |
| topDict.setByName("FontMatrix", properties.fontMatrix); |
| topDict.setByName("FontBBox", properties.bbox); |
| topDict.setByName("charset", null); |
| topDict.setByName("CharStrings", null); |
| topDict.setByName("Private", null); |
| cff.topDict = topDict; |
| var strings = new _cff_parser.CFFStrings(); |
| strings.add("Version 0.11"); |
| strings.add("See original notice"); |
| strings.add(name); |
| strings.add(name); |
| strings.add("Medium"); |
| cff.strings = strings; |
| cff.globalSubrIndex = new _cff_parser.CFFIndex(); |
| var count = glyphs.length; |
| var charsetArray = [".notdef"]; |
| var i, ii; |
| |
| for (i = 0; i < count; i++) { |
| const glyphName = charstrings[i].glyphName; |
| |
| const index = _cff_parser.CFFStandardStrings.indexOf(glyphName); |
| |
| if (index === -1) { |
| strings.add(glyphName); |
| } |
| |
| charsetArray.push(glyphName); |
| } |
| |
| cff.charset = new _cff_parser.CFFCharset(false, 0, charsetArray); |
| var charStringsIndex = new _cff_parser.CFFIndex(); |
| charStringsIndex.add([0x8b, 0x0e]); |
| |
| for (i = 0; i < count; i++) { |
| charStringsIndex.add(glyphs[i]); |
| } |
| |
| cff.charStrings = charStringsIndex; |
| var privateDict = new _cff_parser.CFFPrivateDict(); |
| privateDict.setByName("Subrs", null); |
| var fields = ["BlueValues", "OtherBlues", "FamilyBlues", "FamilyOtherBlues", "StemSnapH", "StemSnapV", "BlueShift", "BlueFuzz", "BlueScale", "LanguageGroup", "ExpansionFactor", "ForceBold", "StdHW", "StdVW"]; |
| |
| for (i = 0, ii = fields.length; i < ii; i++) { |
| var field = fields[i]; |
| |
| if (!(field in properties.privateData)) { |
| continue; |
| } |
| |
| var value = properties.privateData[field]; |
| |
| if (Array.isArray(value)) { |
| for (var j = value.length - 1; j > 0; j--) { |
| value[j] -= value[j - 1]; |
| } |
| } |
| |
| privateDict.setByName(field, value); |
| } |
| |
| cff.topDict.privateDict = privateDict; |
| var subrIndex = new _cff_parser.CFFIndex(); |
| |
| for (i = 0, ii = subrs.length; i < ii; i++) { |
| subrIndex.add(subrs[i]); |
| } |
| |
| privateDict.subrsIndex = subrIndex; |
| var compiler = new _cff_parser.CFFCompiler(cff); |
| return compiler.compile(); |
| } |
| }; |
| return Type1Font; |
| }(); |
| |
| var CFFFont = function CFFFontClosure() { |
| function CFFFont(file, properties) { |
| this.properties = properties; |
| var parser = new _cff_parser.CFFParser(file, properties, SEAC_ANALYSIS_ENABLED); |
| this.cff = parser.parse(); |
| this.cff.duplicateFirstGlyph(); |
| var compiler = new _cff_parser.CFFCompiler(this.cff); |
| this.seacs = this.cff.seacs; |
| |
| try { |
| this.data = compiler.compile(); |
| } catch (e) { |
| (0, _util.warn)("Failed to compile font " + properties.loadedName); |
| this.data = file; |
| } |
| } |
| |
| CFFFont.prototype = { |
| get numGlyphs() { |
| return this.cff.charStrings.count; |
| }, |
| |
| getCharset: function CFFFont_getCharset() { |
| return this.cff.charset.charset; |
| }, |
| getGlyphMapping: function CFFFont_getGlyphMapping() { |
| var cff = this.cff; |
| var properties = this.properties; |
| var charsets = cff.charset.charset; |
| var charCodeToGlyphId; |
| var glyphId; |
| |
| if (properties.composite) { |
| charCodeToGlyphId = Object.create(null); |
| let charCode; |
| |
| if (cff.isCIDFont) { |
| for (glyphId = 0; glyphId < charsets.length; glyphId++) { |
| var cid = charsets[glyphId]; |
| charCode = properties.cMap.charCodeOf(cid); |
| charCodeToGlyphId[charCode] = glyphId; |
| } |
| } else { |
| for (glyphId = 0; glyphId < cff.charStrings.count; glyphId++) { |
| charCode = properties.cMap.charCodeOf(glyphId); |
| charCodeToGlyphId[charCode] = glyphId; |
| } |
| } |
| |
| return charCodeToGlyphId; |
| } |
| |
| var encoding = cff.encoding ? cff.encoding.encoding : null; |
| charCodeToGlyphId = type1FontGlyphMapping(properties, encoding, charsets); |
| return charCodeToGlyphId; |
| }, |
| hasGlyphId: function CFFFont_hasGlyphID(id) { |
| return this.cff.hasGlyphId(id); |
| } |
| }; |
| return CFFFont; |
| }(); |
