Sakurai/pdf.js
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Not relying on the xref in the parser

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notmasteryet 2012-02-14 20:19:43 -06:00
parent 8c727860dd
commit 2f98d18dc1
1 changed files with 7 additions and 7 deletions
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14
src/parser.js
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@ -162,6 +162,10 @@ var Parser = (function ParserClosure() {
return imageStream; return imageStream;
}, },
fetchIfRef: function parserFetchIfRef(obj) {
// not relying on the xref.fetchIfRef -- xref might not be set
return isRef(obj) ? this.xref.fetch(obj) : obj;
},
makeStream: function parserMakeStream(dict, cipherTransform) { makeStream: function parserMakeStream(dict, cipherTransform) {
var lexer = this.lexer; var lexer = this.lexer;
var stream = lexer.stream; var stream = lexer.stream;
@ -171,10 +175,7 @@ var Parser = (function ParserClosure() {
var pos = stream.pos; var pos = stream.pos;
// get length // get length
var length = dict.get('Length'); var length = this.fetchIfRef(dict.get('Length'));
var xref = this.xref;
if (xref)
length = xref.fetchIfRef(length);
if (!isInt(length)) { if (!isInt(length)) {
error('Bad ' + length + ' attribute in stream'); error('Bad ' + length + ' attribute in stream');
length = 0; length = 0;
@ -196,9 +197,8 @@ var Parser = (function ParserClosure() {
return stream; return stream;
}, },
filter: function parserFilter(stream, dict, length) { filter: function parserFilter(stream, dict, length) {
var xref = this.xref; var filter = this.fetchIfRef(dict.get('Filter', 'F'));
var filter = xref.fetchIfRef(dict.get('Filter', 'F')); var params = this.fetchIfRef(dict.get('DecodeParms', 'DP'));
var params = xref.fetchIfRef(dict.get('DecodeParms', 'DP'));
if (isName(filter)) if (isName(filter))
return this.makeFilter(stream, filter.name, length, params); return this.makeFilter(stream, filter.name, length, params);
if (isArray(filter)) { if (isArray(filter)) {