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Merge remote-tracking branch 'mozilla/master' into bidi

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Conflicts:
	src/fonts.js
This commit is contained in:
notmasteryet 2012-02-21 18:23:00 -06:00
commit a8cdbcf315
7 changed files with 317 additions and 225 deletions
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62
src/fonts.js
View File

@ -11,6 +11,7 @@ var kMaxWaitForFontFace = 1000;
// Unicode Private Use Area
var kCmapGlyphOffset = 0xE000;
var kSizeOfGlyphArea = 0x1900;
var kSymbolicFontGlyphOffset = 0xF000;
// PDF Glyph Space Units are one Thousandth of a TextSpace Unit
// except for Type 3 fonts
@ -1660,6 +1661,18 @@ var Font = (function FontClosure() {
itemEncode(locaData, j, writeOffset);
startOffset = endOffset;
}
if (writeOffset == 0) {
// glyf table cannot be empty -- redoing the glyf and loca tables
// to have single glyph with one point
var simpleGlyph = new Uint8Array(
[0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 49, 0]);
for (var i = 0, j = itemSize; i < numGlyphs; i++, j += itemSize)
itemEncode(locaData, j, simpleGlyph.length);
glyf.data = simpleGlyph;
return;
}
glyf.data = newGlyfData.subarray(0, writeOffset);
}
@ -1887,8 +1900,8 @@ var Font = (function FontClosure() {
break;
}
}
// if it is, replacing with meaningful toFontChar values
if (isIdentity) {
// if it is, replacing with meaningful toUnicode values
if (isIdentity && !this.isSymbolicFont) {
var usedUnicodes = [], unassignedUnicodeItems = [];
for (var i = 0, ii = glyphs.length; i < ii; i++) {
var unicode = toFontChar[i + 1];
@ -1941,6 +1954,16 @@ var Font = (function FontClosure() {
}
}
// Moving all symbolic font glyphs into 0xF000 - 0xF0FF range.
if (this.isSymbolicFont) {
for (var i = 0, ii = glyphs.length; i < ii; i++) {
var code = glyphs[i].unicode;
code = kSymbolicFontGlyphOffset | (code & 0xFF);
glyphs[i].unicode = toFontChar[i] = code;
}
this.useToFontChar = true;
}
// remove glyph references outside range of avaialable glyphs
for (var i = 0, ii = ids.length; i < ii; i++) {
if (ids[i] >= numGlyphs)
@ -3349,7 +3372,9 @@ var Type2CFF = (function Type2CFFClosure() {
parse: function cff_parse() {
var header = this.parseHeader();
var properties = this.properties;
var nameIndex = this.parseIndex(header.endPos);
this.sanitizeName(nameIndex);
var dictIndex = this.parseIndex(nameIndex.endPos);
if (dictIndex.length != 1)
@ -3718,6 +3743,39 @@ var Type2CFF = (function Type2CFFClosure() {
}
return dict;
},
sanitizeName: function cff_sanitizeName(nameIndex) {
// There should really only be one font, but loop to make sure.
for (var i = 0, ii = nameIndex.length; i < ii; ++i) {
var data = nameIndex.get(i).data;
var length = data.length;
if (length > 127)
warn('Font had name longer than 127 chars, will be rejected.');
// Only certain chars are permitted in the font name.
for (var j = 0; j < length; ++j) {
var c = data[j];
if (j === 0 && c === 0)
continue;
if (c < 33 || c > 126) {
data[j] = 95;
continue;
}
switch (c) {
case 91: // [
case 93: // ]
case 40: // (
case 41: // )
case 123: // {
case 125: // }
case 60: // <
case 62: // >
case 47: // /
case 37: // %
data[j] = 95;
break;
}
}
}
},
getStrings: function cff_getStrings(stringIndex) {
function bytesToString(bytesArray) {
var str = '';

454
src/jpx.js
View File

@ -1052,7 +1052,7 @@ var JpxImage = (function JpxImageClosure() {
}
r = 0;
}
error('JPX error: Out of packets');
throw 'Out of packets';
};
}
function ResolutionLayerComponentPositionIterator(context) {
@ -1091,7 +1091,7 @@ var JpxImage = (function JpxImageClosure() {
}
l = 0;
}
error('JPX error: Out of packets');
throw 'Out of packets';
};
}
function buildPackets(context) {
@ -1187,7 +1187,7 @@ var JpxImage = (function JpxImageClosure() {
new ResolutionLayerComponentPositionIterator(context);
break;
default:
error('JPX error: Unsupported progression order ' + progressionOrder);
throw 'Unsupported progression order ' + progressionOrder;
}
}
function parseTilePackets(context, data, offset, dataLength) {
@ -1553,6 +1553,7 @@ var JpxImage = (function JpxImageClosure() {
}
function JpxImage() {
this.failOnCorruptedImage = false;
}
JpxImage.prototype = {
load: function jpxImageLoad(url) {
@ -1612,237 +1613,244 @@ var JpxImage = (function JpxImageClosure() {
},
parseCodestream: function jpxImageParseCodestream(data, start, end) {
var context = {};
var position = start;
while (position < end) {
var code = readUint16(data, position);
position += 2;
try {
var position = start;
while (position < end) {
var code = readUint16(data, position);
position += 2;
var length = 0, j;
switch (code) {
case 0xFF4F: // Start of codestream (SOC)
context.mainHeader = true;
break;
case 0xFFD9: // End of codestream (EOC)
break;
case 0xFF51: // Image and tile size (SIZ)
length = readUint16(data, position);
var siz = {};
siz.Xsiz = readUint32(data, position + 4);
siz.Ysiz = readUint32(data, position + 8);
siz.XOsiz = readUint32(data, position + 12);
siz.YOsiz = readUint32(data, position + 16);
siz.XTsiz = readUint32(data, position + 20);
siz.YTsiz = readUint32(data, position + 24);
siz.XTOsiz = readUint32(data, position + 28);
siz.YTOsiz = readUint32(data, position + 32);
var componentsCount = readUint16(data, position + 36);
siz.Csiz = componentsCount;
var components = [];
j = position + 38;
for (var i = 0; i < componentsCount; i++) {
var component = {
precision: (data[j] & 0x7F) + 1,
isSigned: !!(data[j] & 0x80),
XRsiz: data[j + 1],
YRsiz: data[j + 1]
};
calculateComponentDimensions(component, siz);
components.push(component);
}
context.SIZ = siz;
context.components = components;
calculateTileGrids(context, components);
context.QCC = [];
context.COC = [];
break;
case 0xFF5C: // Quantization default (QCD)
length = readUint16(data, position);
var qcd = {};
j = position + 2;
var sqcd = data[j++];
var spqcdSize, scalarExpounded;
switch (sqcd & 0x1F) {
case 0:
spqcdSize = 8;
scalarExpounded = true;
break;
case 1:
spqcdSize = 16;
scalarExpounded = false;
break;
case 2:
spqcdSize = 16;
scalarExpounded = true;
break;
default:
error('JPX error: Invalid SQcd value ' + sqcd);
}
qcd.noQuantization = spqcdSize == 8;
qcd.scalarExpounded = scalarExpounded;
qcd.guardBits = sqcd >> 5;
var spqcds = [];
while (j < length + position) {
var spqcd = {};
if (spqcdSize == 8) {
spqcd.epsilon = data[j++] >> 3;
spqcd.mu = 0;
} else {
spqcd.epsilon = data[j] >> 3;
spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1];
j += 2;
var length = 0, j;
switch (code) {
case 0xFF4F: // Start of codestream (SOC)
context.mainHeader = true;
break;
case 0xFFD9: // End of codestream (EOC)
break;
case 0xFF51: // Image and tile size (SIZ)
length = readUint16(data, position);
var siz = {};
siz.Xsiz = readUint32(data, position + 4);
siz.Ysiz = readUint32(data, position + 8);
siz.XOsiz = readUint32(data, position + 12);
siz.YOsiz = readUint32(data, position + 16);
siz.XTsiz = readUint32(data, position + 20);
siz.YTsiz = readUint32(data, position + 24);
siz.XTOsiz = readUint32(data, position + 28);
siz.YTOsiz = readUint32(data, position + 32);
var componentsCount = readUint16(data, position + 36);
siz.Csiz = componentsCount;
var components = [];
j = position + 38;
for (var i = 0; i < componentsCount; i++) {
var component = {
precision: (data[j] & 0x7F) + 1,
isSigned: !!(data[j] & 0x80),
XRsiz: data[j + 1],
YRsiz: data[j + 1]
};
calculateComponentDimensions(component, siz);
components.push(component);
}
spqcds.push(spqcd);
}
qcd.SPqcds = spqcds;
if (context.mainHeader)
context.QCD = qcd;
else {
context.currentTile.QCD = qcd;
context.currentTile.QCC = [];
}
break;
case 0xFF5D: // Quantization component (QCC)
length = readUint16(data, position);
var qcc = {};
j = position + 2;
var cqcc;
if (context.SIZ.Csiz < 257)
cqcc = data[j++];
else {
cqcc = readUint16(data, j);
j += 2;
}
var sqcd = data[j++];
var spqcdSize, scalarExpounded;
switch (sqcd & 0x1F) {
case 0:
spqcdSize = 8;
scalarExpounded = true;
break;
case 1:
spqcdSize = 16;
scalarExpounded = false;
break;
case 2:
spqcdSize = 16;
scalarExpounded = true;
break;
default:
error('JPX error: Invalid SQcd value ' + sqcd);
}
qcc.noQuantization = spqcdSize == 8;
qcc.scalarExpounded = scalarExpounded;
qcc.guardBits = sqcd >> 5;
var spqcds = [];
while (j < length + position) {
var spqcd = {};
if (spqcdSize == 8) {
spqcd.epsilon = data[j++] >> 3;
spqcd.mu = 0;
} else {
spqcd.epsilon = data[j] >> 3;
spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1];
j += 2;
context.SIZ = siz;
context.components = components;
calculateTileGrids(context, components);
context.QCC = [];
context.COC = [];
break;
case 0xFF5C: // Quantization default (QCD)
length = readUint16(data, position);
var qcd = {};
j = position + 2;
var sqcd = data[j++];
var spqcdSize, scalarExpounded;
switch (sqcd & 0x1F) {
case 0:
spqcdSize = 8;
scalarExpounded = true;
break;
case 1:
spqcdSize = 16;
scalarExpounded = false;
break;
case 2:
spqcdSize = 16;
scalarExpounded = true;
break;
default:
throw 'Invalid SQcd value ' + sqcd;
}
spqcds.push(spqcd);
}
qcc.SPqcds = spqcds;
if (context.mainHeader)
context.QCC[cqcc] = qcc;
else
context.currentTile.QCC[cqcc] = qcc;
break;
case 0xFF52: // Coding style default (COD)
length = readUint16(data, position);
var cod = {};
j = position + 2;
var scod = data[j++];
cod.entropyCoderWithCustomPrecincts = !!(scod & 1);
cod.sopMarkerUsed = !!(scod & 2);
cod.ephMarkerUsed = !!(scod & 4);
var codingStyle = {};
cod.progressionOrder = data[j++];
cod.layersCount = readUint16(data, j);
j += 2;
cod.multipleComponentTransform = data[j++];
cod.decompositionLevelsCount = data[j++];
cod.xcb = (data[j++] & 0xF) + 2;
cod.ycb = (data[j++] & 0xF) + 2;
var blockStyle = data[j++];
cod.selectiveArithmeticCodingBypass = !!(blockStyle & 1);
cod.resetContextProbabilities = !!(blockStyle & 2);
cod.terminationOnEachCodingPass = !!(blockStyle & 4);
cod.verticalyStripe = !!(blockStyle & 8);
cod.predictableTermination = !!(blockStyle & 16);
cod.segmentationSymbolUsed = !!(blockStyle & 32);
cod.transformation = data[j++];
if (cod.entropyCoderWithCustomPrecincts) {
var precinctsSizes = {};
qcd.noQuantization = spqcdSize == 8;
qcd.scalarExpounded = scalarExpounded;
qcd.guardBits = sqcd >> 5;
var spqcds = [];
while (j < length + position) {
var precinctsSize = data[j];
precinctsSizes.push({
PPx: precinctsSize & 0xF,
PPy: precinctsSize >> 4
});
var spqcd = {};
if (spqcdSize == 8) {
spqcd.epsilon = data[j++] >> 3;
spqcd.mu = 0;
} else {
spqcd.epsilon = data[j] >> 3;
spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1];
j += 2;
}
spqcds.push(spqcd);
}
cod.precinctsSizes = precinctsSizes;
}
qcd.SPqcds = spqcds;
if (context.mainHeader)
context.QCD = qcd;
else {
context.currentTile.QCD = qcd;
context.currentTile.QCC = [];
}
break;
case 0xFF5D: // Quantization component (QCC)
length = readUint16(data, position);
var qcc = {};
j = position + 2;
var cqcc;
if (context.SIZ.Csiz < 257)
cqcc = data[j++];
else {
cqcc = readUint16(data, j);
j += 2;
}
var sqcd = data[j++];
var spqcdSize, scalarExpounded;
switch (sqcd & 0x1F) {
case 0:
spqcdSize = 8;
scalarExpounded = true;
break;
case 1:
spqcdSize = 16;
scalarExpounded = false;
break;
case 2:
spqcdSize = 16;
scalarExpounded = true;
break;
default:
throw 'Invalid SQcd value ' + sqcd;
}
qcc.noQuantization = spqcdSize == 8;
qcc.scalarExpounded = scalarExpounded;
qcc.guardBits = sqcd >> 5;
var spqcds = [];
while (j < length + position) {
var spqcd = {};
if (spqcdSize == 8) {
spqcd.epsilon = data[j++] >> 3;
spqcd.mu = 0;
} else {
spqcd.epsilon = data[j] >> 3;
spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1];
j += 2;
}
spqcds.push(spqcd);
}
qcc.SPqcds = spqcds;
if (context.mainHeader)
context.QCC[cqcc] = qcc;
else
context.currentTile.QCC[cqcc] = qcc;
break;
case 0xFF52: // Coding style default (COD)
length = readUint16(data, position);
var cod = {};
j = position + 2;
var scod = data[j++];
cod.entropyCoderWithCustomPrecincts = !!(scod & 1);
cod.sopMarkerUsed = !!(scod & 2);
cod.ephMarkerUsed = !!(scod & 4);
var codingStyle = {};
cod.progressionOrder = data[j++];
cod.layersCount = readUint16(data, j);
j += 2;
cod.multipleComponentTransform = data[j++];
if (cod.sopMarkerUsed || cod.ephMarkerUsed ||
cod.selectiveArithmeticCodingBypass ||
cod.resetContextProbabilities ||
cod.terminationOnEachCodingPass ||
cod.verticalyStripe || cod.predictableTermination ||
cod.segmentationSymbolUsed)
error('JPX error: Unsupported COD options: ' + uneval(cod));
cod.decompositionLevelsCount = data[j++];
cod.xcb = (data[j++] & 0xF) + 2;
cod.ycb = (data[j++] & 0xF) + 2;
var blockStyle = data[j++];
cod.selectiveArithmeticCodingBypass = !!(blockStyle & 1);
cod.resetContextProbabilities = !!(blockStyle & 2);
cod.terminationOnEachCodingPass = !!(blockStyle & 4);
cod.verticalyStripe = !!(blockStyle & 8);
cod.predictableTermination = !!(blockStyle & 16);
cod.segmentationSymbolUsed = !!(blockStyle & 32);
cod.transformation = data[j++];
if (cod.entropyCoderWithCustomPrecincts) {
var precinctsSizes = {};
while (j < length + position) {
var precinctsSize = data[j];
precinctsSizes.push({
PPx: precinctsSize & 0xF,
PPy: precinctsSize >> 4
});
}
cod.precinctsSizes = precinctsSizes;
}
if (context.mainHeader)
context.COD = cod;
else {
context.currentTile.COD = cod;
context.currentTile.COC = [];
}
break;
case 0xFF90: // Start of tile-part (SOT)
length = readUint16(data, position);
var tile = {};
tile.index = readUint16(data, position + 2);
tile.length = readUint32(data, position + 4);
tile.dataEnd = tile.length + position - 2;
tile.partIndex = data[position + 8];
tile.partsCount = data[position + 9];
if (cod.sopMarkerUsed || cod.ephMarkerUsed ||
cod.selectiveArithmeticCodingBypass ||
cod.resetContextProbabilities ||
cod.terminationOnEachCodingPass ||
cod.verticalyStripe || cod.predictableTermination ||
cod.segmentationSymbolUsed)
throw 'Unsupported COD options: ' + uneval(cod);
context.mainHeader = false;
if (tile.partIndex == 0) {
// reset component specific settings
tile.COD = context.COD;
tile.COC = context.COC.slice(0); // clone of the global COC
tile.QCD = context.QCD;
tile.QCC = context.QCC.slice(0); // clone of the global COC
}
context.currentTile = tile;
break;
case 0xFF93: // Start of data (SOD)
var tile = context.currentTile;
if (tile.partIndex == 0) {
initializeTile(context, tile.index);
buildPackets(context);
}
if (context.mainHeader)
context.COD = cod;
else {
context.currentTile.COD = cod;
context.currentTile.COC = [];
}
break;
case 0xFF90: // Start of tile-part (SOT)
length = readUint16(data, position);
var tile = {};
tile.index = readUint16(data, position + 2);
tile.length = readUint32(data, position + 4);
tile.dataEnd = tile.length + position - 2;
tile.partIndex = data[position + 8];
tile.partsCount = data[position + 9];
// moving to the end of the data
length = tile.dataEnd - position;
context.mainHeader = false;
if (tile.partIndex == 0) {
// reset component specific settings
tile.COD = context.COD;
tile.COC = context.COC.slice(0); // clone of the global COC
tile.QCD = context.QCD;
tile.QCC = context.QCC.slice(0); // clone of the global COC
}
context.currentTile = tile;
break;
case 0xFF93: // Start of data (SOD)
var tile = context.currentTile;
if (tile.partIndex == 0) {
initializeTile(context, tile.index);
buildPackets(context);
}
parseTilePackets(context, data, position, length);
break;
case 0xFF64: // Comment (COM)
length = readUint16(data, position);
// skipping content
break;
default:
error('JPX error: Unknown codestream code: ' + code.toString(16));
// moving to the end of the data
length = tile.dataEnd - position;
parseTilePackets(context, data, position, length);
break;
case 0xFF64: // Comment (COM)
length = readUint16(data, position);
// skipping content
break;
default:
throw 'Unknown codestream code: ' + code.toString(16);
}
position += length;
}
position += length;
} catch (e) {
if (this.failOnCorruptedImage)
error('JPX error: ' + e);
else
warn('JPX error: ' + e + '. Trying to recover');
}
this.tiles = transformComponents(context);
this.width = context.SIZ.Xsiz - context.SIZ.XOsiz;

1
test/pdfs/.gitignore vendored
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@ -24,3 +24,4 @@
!type4psfunc.pdf
!S2.pdf
!zerowidthline.pdf
!issue925.pdf

1
test/pdfs/issue1243.pdf.link Normal file
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@ -0,0 +1 @@
http://www.nsa.gov/public_info/_files/nash_letters/nash_letters1.pdf

1
test/pdfs/issue1257.pdf.link Normal file
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@ -0,0 +1 @@
http://hse-econ.fi/tervio/MediocritiesAndSuperstars.pdf

BIN
test/pdfs/issue925.pdf Executable file
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Binary file not shown.

23
test/test_manifest.json
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@ -460,6 +460,13 @@
"link": true,
"type": "eq"
},
{ "id": "issue925",
"file": "pdfs/issue925.pdf",
"md5": "f58fe943090aff89dcc8e771bc0db4c2",
"rounds": 1,
"link": true,
"type": "eq"
},
{ "id": "issue1133",
"file": "pdfs/issue1133.pdf",
"md5": "d1b61580cb100e3df93d33703af1773a",
@ -480,5 +487,21 @@
"rounds": 1,
"link": true,
"type": "eq"
},
{ "id": "issue1243",
"file": "pdfs/issue1243.pdf",
"md5": "130c849b83513d5ac5e03c6421fc7489",
"rounds": 1,
"pageLimit": 2,
"link": true,
"type": "eq"
},
{ "id": "issue1257",
"file": "pdfs/issue1257.pdf",
"md5": "9111533826bc21ed774e8e01603a2f54",
"rounds": 1,
"pageLimit": 2,
"link": true,
"type": "eq"
}
]