Make the Type1 to OTF code active, even if the sanitizer prevent fonts to load at the moment
This commit is contained in:
Vivien Nicolas
parent
fdacb575c5
commit
828367a1b4
86
PDFFont.js
86
PDFFont.js
@ -1,3 +1,6 @@
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var kMaxFontFileSize = 100000;
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/**
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* This dictionary holds decoded fonts data.
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*/
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@ -68,7 +71,13 @@ var TrueTypeFont = function(aFontName, aFontFile) {
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return;
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_Fonts[aFontName] = true;
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//log("Loading a TrueType font: " + aFontName);
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var debug = false;
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function dump(aMsg) {
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if (debug)
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log(aMsg);
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}
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dump("Loading a TrueType font: " + aFontName);
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var fontData = Base64Encoder.encode(aFontFile);
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Fonts.set(aFontName, fontData);
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@ -648,6 +657,12 @@ var Type1Parser = function(aAsciiStream, aBinaryStream) {
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operandStack.push("rmoveto");
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break;
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case "div":
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var num2 = operandStack.pop();
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var num1 = operandStack.pop();
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operandStack.push(num2 / num1);
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break;
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case "setcurrentpoint":
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case "dotsection":
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case "seac":
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@ -680,7 +695,7 @@ var Type1Parser = function(aAsciiStream, aBinaryStream) {
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var count = operandStack.pop();
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var data = operandStack.pop();
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if (index != 3)
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log("callothersubr for index: " + index);
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dump("callothersubr for index: " + index);
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operandStack.push(3);
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operandStack.push("callothersubr");
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break;
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@ -713,7 +728,7 @@ var Type1Font = function(aFontName, aFontFile) {
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if (aFontFile.getByte() != 0x25 || aFontFile.getByte() != 0x21)
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error("Invalid file header");
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if (!type1hack) {
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if (!type1hack || true) {
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type1hack = true;
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var start = Date.now();
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@ -723,7 +738,13 @@ var Type1Font = function(aFontName, aFontFile) {
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this.parser = new Type1Parser(ASCIIStream, binaryStream);
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var fontName = this.parser.parse();
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var font = Fonts.get(fontName);
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this.convertToOTF(this.convertToCFF(font), font);
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var fontData = this.convertToOTF(this.convertToCFF(font), font);
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fontData = Base64Encoder.encode(fontData);
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Fonts.set(aFontName, fontData);
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// Add the css rule
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var url = "url(data:font/otf;base64," + fontData + ");";
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document.styleSheets[0].insertRule("@font-face { font-family: '" + aFontName + "'; src: " + url + " }", 0);
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var end = Date.now();
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log("Time to parse font is:" + (end - start));
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@ -846,6 +867,12 @@ Type1Font.prototype = {
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},
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convertToCFF: function(aFont) {
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var debug = false;
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function dump(aMsg) {
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if (debug)
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log(aMsg);
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};
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var charstrings = this.getOrderedCharStrings(aFont);
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var defaultWidth = this.getDefaultWidth(charstrings);
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@ -856,7 +883,7 @@ Type1Font.prototype = {
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var subrs = aFont.get("Private").get("Subrs");
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var parser = new Type1Parser();
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for (var i = 0; i < charstrings.length; i++) {
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var charstring = charstrings[i].charstring;
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var charstring = charstrings[i].charstring.slice();
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var glyph = charstrings[i].glyph;
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if (glyphsChecker[glyph])
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error("glyphs already exists!");
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@ -867,10 +894,10 @@ Type1Font.prototype = {
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charstringsCount++;
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charstringsDataLength += flattened.length;
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}
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//log("There is " + charstringsCount + " glyphs (size: " + charstringsDataLength + ")");
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dump("There is " + charstringsCount + " glyphs (size: " + charstringsDataLength + ")");
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// Create a CFF font data
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var cff = new Uint8Array(20000);
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var cff = new Uint8Array(kMaxFontFileSize);
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var currentOffset = 0;
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// Font header (major version, minor version, header size, offset size)
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@ -938,7 +965,12 @@ Type1Font.prototype = {
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error(c);
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charstring.push(token);
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} else {
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var bytes = this.encodeNumber(c);
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try {
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var bytes = this.encodeNumber(c);
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} catch(e) {
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log("Glyph " + i + " has a wrong value: " + c + " in charstring: " + data);
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log("the default value is glyph " + charstrings[i].glyph + " and is supposed to be: " + charstrings[i].charstring);
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}
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for (var k = 0; k < bytes.length; k++)
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charstring.push(bytes[k]);
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}
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@ -1035,20 +1067,17 @@ Type1Font.prototype = {
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currentOffset += shit.length;
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log("==================== debug ====================");
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/*
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log("== parse");
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var file = new Uint8Array(cff, 0, currentOffset);
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var parser = new Type2Parser();
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parser.parse(new Stream(file));
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*/
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dump("==================== debug ====================");
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//var file = new Uint8Array(cff, 0, currentOffset);
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//var parser = new Type2Parser();
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//parser.parse(new Stream(file));
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var data = [];
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for (var i = 0; i < currentOffset; i++)
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data.push(cff[i]);
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log("== write to file");
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writeToFile(data, "/tmp/pdf.js.cff");
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//log("== write to file");
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//writeToFile(data, "/tmp/pdf.js.cff");
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return data;
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},
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@ -1118,7 +1147,7 @@ Type1Font.prototype = {
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},
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convertToOTF: function(aData, aFont) {
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var otf = new Uint8Array(20000);
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var otf = new Uint8Array(kMaxFontFileSize);
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var currentOffset = 0;
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var numTables = 9;
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@ -1198,11 +1227,17 @@ Type1Font.prototype = {
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}
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for (var i = 0; i < charstrings.length; i++) {
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var pos = GlyphsUnicode[charstrings[i].glyph];
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var glyph = charstrings[i].glyph;
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if (glyph == ".notdef")
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continue;
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var pos = GlyphsUnicode[glyph];
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if (!pos)
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error(charstrings[i].glyph + " does not have an entry in the glyphs table");
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var b1 = parseInt("0x" + pos[0] + pos[1]);
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var b2 = parseInt("0x" + pos[2] + pos[3]);
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var pos = this.bytesToInteger([b1, b2]);
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data[pos] = i + 1;
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var num = this.bytesToInteger([b1, b2]);
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data[num] = i + 1;
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}
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cmap = cmap.concat(data);
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@ -1260,7 +1295,6 @@ Type1Font.prototype = {
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0x00, 0x00 // metricDataFormat
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];
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hhea = hhea.concat(this.integerToBytes(charstrings.length, 2)); // numberOfHMetrics
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log(hhea);
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var tableEntry = this.createTableEntry("hhea", virtualOffset, hhea);
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otf.set(tableEntry, currentOffset);
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@ -1336,13 +1370,13 @@ Type1Font.prototype = {
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otf.set(table, currentOffset);
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currentOffset += table.length;
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}
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log(currentOffset + "::" + virtualOffset + "\n");
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var data = [];
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var fontData = [];
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for (var i = 0; i < currentOffset; i++)
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data.push(otf[i]);
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fontData.push(otf[i]);
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writeToFile(data, "/tmp/pdf.js.otf");
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//writeToFile(data, "/tmp/pdf.js.otf");
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return fontData;
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}
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};
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5
pdf.js
5
pdf.js
@ -2276,7 +2276,7 @@ var CanvasGraphics = (function() {
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if (!font)
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return;
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var fontName = "Nimbus Roman No9 L";
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var fontName = "";
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var subtype = font.get("Subtype").name;
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switch (subtype) {
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case "Type1":
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@ -2285,7 +2285,8 @@ var CanvasGraphics = (function() {
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// XXX fetchIfRef looks expensive
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var fontDescriptor = this.xref.fetchIfRef(fontDescriptor);
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var fontFile = this.xref.fetchIfRef(fontDescriptor.get("FontFile"));
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font = new Type1Font(fontDescriptor.get("FontName").name, fontFile);
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fontName = fontDescriptor.get("FontName").name;
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font = new Type1Font(fontName, fontFile);
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}
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break;
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