Merge branch 'master' into bwimage

This commit is contained in:
sbarman 2011-06-27 09:03:37 -07:00
commit 58c23caeaf
4 changed files with 79 additions and 83 deletions

139
fonts.js
View File

@ -787,8 +787,8 @@ var Font = (function () {
// This code could go away when bug 471915 has landed
var canvas = document.createElement("canvas");
var ctx = canvas.getContext("2d");
ctx.font = "bold italic 20px " + fontName + ", Symbol";
var testString = " ";
ctx.font = "bold italic 20px " + fontName + ", Symbol, Arial";
var testString = " ";
// Periodicaly check for the width of the testString, it will be
// different once the real font has loaded
@ -796,7 +796,7 @@ var Font = (function () {
var interval = window.setInterval(function canvasInterval(self) {
this.start = this.start || Date.now();
ctx.font = "bold italic 20px " + fontName + ", Symbol";
ctx.font = "bold italic 20px " + fontName + ", Symbol, Arial";
// For some reasons the font has not loaded, so mark it loaded for the
// page to proceed but cry
@ -976,6 +976,7 @@ var Type1Parser = function() {
"6": -1, // seac
"7": -1, //sbw
"11": "sub",
"12": "div",
// callothersubr is a mechanism to make calls on the postscript
@ -1288,6 +1289,11 @@ CFF.prototype = {
"hlineto": 6,
"vlineto": 7,
"rrcurveto": 8,
"callsubr": 10,
"return": 11,
"sub": [12, 11],
"div": [12, 12],
"pop": [1, 12, 18],
"endchar": 14,
"rmoveto": 21,
"hmoveto": 22,
@ -1295,7 +1301,7 @@ CFF.prototype = {
"hvcurveto": 31,
},
flattenCharstring: function flattenCharstring(charstring, subrs) {
flattenCharstring: function flattenCharstring(charstring) {
var i = 0;
while (true) {
var obj = charstring[i];
@ -1304,62 +1310,39 @@ CFF.prototype = {
if (obj.charAt) {
switch (obj) {
case "callsubr":
var subr = subrs[charstring[i - 1]];
if (subr.length > 1) {
subr = this.flattenCharstring(subr, subrs);
subr.pop();
charstring.splice(i - 1, 2, subr);
} else {
charstring.splice(i - 1, 2);
}
i -= 1;
break;
case "callothersubr":
var index = charstring[i - 1];
var count = charstring[i - 2];
var data = charstring[i - 3];
// XXX The callothersubr needs to support at least the 3 defaults
// otherSubrs of the spec
if (index != 3)
error("callothersubr for index: " + index + " (" + charstring + ")");
// If the flex mechanishm is not used in a font program, Adobe
// state that that entries 0, 1 and 2 can simply be replace by
// {}, which means that we can simply ignore them.
if (index < 3) {
i -= 3;
continue;
}
if (!data) {
charstring.splice(i - 2, 4, "pop", 3);
i -= 3;
} else {
// 5 to remove the arguments, the callothersubr call and the pop command
charstring.splice(i - 3, 5, 3);
i -= 3;
// This is the same things about hint replacment, if it is not used
// entry 3 can be replaced by {}
if (index == 3) {
if (!data) {
charstring.splice(i - 2, 4, 3);
i -= 3;
} else {
// 5 to remove the arguments, the callothersubr call and the pop command
charstring.splice(i - 3, 5, 3);
i -= 3;
}
}
break;
case "div":
var num2 = charstring[i - 1];
var num1 = charstring[i - 2];
charstring.splice(i - 2, 3, num1 / num2);
i -= 2;
break;
case "pop":
if (i)
charstring.splice(i - 2, 2);
else
charstring.splice(i - 1, 1);
i -= 1;
break;
case "hsbw":
var charWidthVector = charstring[i - 1];
var leftSidebearing = charstring[i - 2];
var charWidthVector = charstring[1];
var leftSidebearing = charstring[0];
if (leftSidebearing)
charstring.splice(i - 2, 3, charWidthVector, leftSidebearing, "hmoveto");
else
charstring.splice(i - 2, 3, charWidthVector);
charstring.splice(i, 1, leftSidebearing, "hmoveto");
charstring.splice(0, 1);
break;
case "endchar":
@ -1371,21 +1354,16 @@ CFF.prototype = {
charstring.splice(j, 1, 28, command >> 8, command);
j+= 2;
} else if (command.charAt) {
var command = this.commandsMap[command];
if (IsArray(command)) {
charstring.splice(j - 1, 1, command[0], command[1]);
var cmd = this.commandsMap[command];
if (!cmd)
error(command);
if (IsArray(cmd)) {
charstring.splice(j, 1, cmd[0], cmd[1]);
j += 1;
} else {
charstring[j] = command;
charstring[j] = cmd;
}
} else {
charstring.splice(j, 1);
// command has already been translated, just add them to the
// charstring directly
for (var k = 0; k < command.length; k++)
charstring.splice(j + k, 0, command[k]);
j+= command.length - 1;
}
}
return charstring;
@ -1406,7 +1384,7 @@ CFF.prototype = {
var glyphsCount = charstrings.length;
for (var i = 0; i < glyphsCount; i++) {
var charstring = charstrings[i].charstring;
glyphs.push(this.flattenCharstring(charstring.slice(), subrs));
glyphs.push(this.flattenCharstring(charstring.slice()));
}
// Create a CFF font data
@ -1511,22 +1489,35 @@ CFF.prototype = {
247, 32, 11,
247, 10, 161, 147, 154, 150, 143, 12, 13,
139, 12, 14,
28, 0, 55, 19
28, 0, 55, 19 // Subrs offset
]);
cff.set(privateData, currentOffset);
currentOffset += privateData.length;
// Dump shit at the end of the file
var shit = [
0x00, 0x01, 0x01, 0x01,
0x13, 0x5D, 0x65, 0x64,
0x5E, 0x5B, 0xAF, 0x66,
0xBA, 0xBB, 0xB1, 0xB0,
0xB9, 0xBA, 0x65, 0xB2,
0x5C, 0x1F, 0x0B
];
cff.set(shit, currentOffset);
currentOffset += shit.length;
// Local Subrs
var flattenedSubrs = [];
var bias = 0;
var subrsCount = subrs.length;
if (subrsCount < 1240)
bias = 107;
else if (subrsCount < 33900)
bias = 1131;
else
bias = 32768;
// Add a bunch of empty subrs to deal with the Type2 bias
for (var i = 0; i < bias; i++)
flattenedSubrs.push([0x0B]);
for (var i = 0; i < subrsCount; i++) {
var subr = subrs[i];
flattenedSubrs.push(this.flattenCharstring(subr));
}
var subrsData = this.createCFFIndexHeader(flattenedSubrs, true);
cff.set(subrsData, currentOffset);
currentOffset += subrsData.length;
var fontData = [];
for (var i = 0; i < currentOffset; i++)

View File

@ -194,6 +194,8 @@ function readFontIndexData(aStream, aIsByte) {
return aStream.getByte() << 24 | aStream.getByte() << 16 |
aStream.getByte() << 8 | aStream.getByte();
}
error(offsize + " is not a valid offset size");
return null;
};
var offsets = [];
@ -320,12 +322,12 @@ var Type2Parser = function(aFilePath) {
dump(subrs);
// Reading Private Dict
var private = font.get("Private");
log("Reading Private Dict (offset: " + private.offset + " size: " + private.size + ")");
aStream.pos = private.offset;
var priv = font.get("Private");
log("Reading Private Dict (offset: " + priv.offset + " size: " + priv.size + ")");
aStream.pos = priv.offset;
var privateDict = [];
for (var i = 0; i < private.size; i++)
for (var i = 0; i < priv.size; i++)
privateDict.push(aStream.getByte());
dump("private:" + privateDict);
parseAsToken(privateDict, CFFDictPrivateDataMap);
@ -386,7 +388,7 @@ function writeToFile(aBytes, aFilePath) {
var stream = Cc["@mozilla.org/network/file-output-stream;1"]
.createInstance(Ci.nsIFileOutputStream);
stream.init(file, 0x04 | 0x08 | 0x20, 0600, 0);
stream.init(file, 0x04 | 0x08 | 0x20, 600, 0);
var bos = Cc["@mozilla.org/binaryoutputstream;1"]
.createInstance(Ci.nsIBinaryOutputStream);

View File

@ -5,6 +5,7 @@
<script type="text/javascript" src="viewer.js"></script>
<script type="text/javascript" src="pdf.js"></script>
<script type="text/javascript" src="utils/fonts_utils.js"></script>
<script type="text/javascript" src="fonts.js"></script>
<script type="text/javascript" src="crypto.js"></script>
<script type="text/javascript" src="glyphlist.js"></script>
@ -26,8 +27,7 @@
<div id="viewer">
<!-- Canvas dimensions must be specified in CSS pixels. CSS pixels
are always 96 dpi. 816x1056 is 8.5x11in at 96dpi. -->
<!-- We're rendering here at 1.5x scale. -->
<canvas id="canvas" width="1224" height="1584"></canvas>
<canvas id="canvas" width="816" height="1056" defaultwidth="816" defaultheight="1056"></canvas>
</div>
</body>
</html>

View File

@ -3,11 +3,12 @@
"use strict";
var pdfDocument, canvas, pageDisplay, pageNum, numPages, pageTimeout;
var pdfDocument, canvas, pageScale, pageDisplay, pageNum, numPages, pageTimeout;
function load(userInput) {
canvas = document.getElementById("canvas");
canvas.mozOpaque = true;
pageNum = parseInt(queryParams().page) || 1;
pageNum = ("page" in queryParams()) ? parseInt(queryParams().page) : 1;
pageScale = ("scale" in queryParams()) ? parseInt(queryParams().scale) : 1.5;
var fileName = userInput;
if (!userInput) {
fileName = queryParams().file || "compressed.tracemonkey-pldi-09.pdf";
@ -59,6 +60,8 @@ function displayPage(num) {
var t0 = Date.now();
var page = pdfDocument.getPage(pageNum = num);
canvas.width = parseInt(canvas.getAttribute("defaultwidth")) * pageScale;
canvas.height = parseInt(canvas.getAttribute("defaultheight")) * pageScale;
// scale canvas by 2
canvas.width = 2 * page.mediaBox[2];