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Telemetry for used stream and font types

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This commit is contained in:
Yury Delendik 2014-06-16 09:52:04 -05:00
parent 7ac1c6b034
commit 0cd28ebfa3
11 changed files with 174 additions and 24 deletions
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13
src/core/parser.js
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@ -17,7 +17,8 @@
/* globals Ascii85Stream, AsciiHexStream, CCITTFaxStream, Cmd, Dict, error,
FlateStream, isArray, isCmd, isDict, isInt, isName, isNum, isRef,
isString, Jbig2Stream, JpegStream, JpxStream, LZWStream, Name,
NullStream, PredictorStream, Ref, RunLengthStream, warn, info */
NullStream, PredictorStream, Ref, RunLengthStream, warn, info,
StreamType */
'use strict';
@ -343,7 +344,9 @@ var Parser = (function ParserClosure() {
if (stream.dict.get('Length') === 0) {
return new NullStream(stream);
}
var xrefStreamStats = this.xref.stats.streamTypes;
if (name == 'FlateDecode' || name == 'Fl') {
xrefStreamStats[StreamType.FLATE] = true;
if (params) {
return new PredictorStream(new FlateStream(stream, maybeLength),
maybeLength, params);
@ -351,6 +354,7 @@ var Parser = (function ParserClosure() {
return new FlateStream(stream, maybeLength);
}
if (name == 'LZWDecode' || name == 'LZW') {
xrefStreamStats[StreamType.LZW] = true;
var earlyChange = 1;
if (params) {
if (params.has('EarlyChange')) {
@ -363,24 +367,31 @@ var Parser = (function ParserClosure() {
return new LZWStream(stream, maybeLength, earlyChange);
}
if (name == 'DCTDecode' || name == 'DCT') {
xrefStreamStats[StreamType.DCT] = true;
return new JpegStream(stream, maybeLength, stream.dict, this.xref);
}
if (name == 'JPXDecode' || name == 'JPX') {
xrefStreamStats[StreamType.JPX] = true;
return new JpxStream(stream, maybeLength, stream.dict);
}
if (name == 'ASCII85Decode' || name == 'A85') {
xrefStreamStats[StreamType.A85] = true;
return new Ascii85Stream(stream, maybeLength);
}
if (name == 'ASCIIHexDecode' || name == 'AHx') {
xrefStreamStats[StreamType.AHX] = true;
return new AsciiHexStream(stream, maybeLength);
}
if (name == 'CCITTFaxDecode' || name == 'CCF') {
xrefStreamStats[StreamType.CCF] = true;
return new CCITTFaxStream(stream, maybeLength, params);
}
if (name == 'RunLengthDecode' || name == 'RL') {
xrefStreamStats[StreamType.RL] = true;
return new RunLengthStream(stream, maybeLength);
}
if (name == 'JBIG2Decode') {
xrefStreamStats[StreamType.JBIG] = true;
return new Jbig2Stream(stream, maybeLength, stream.dict);
}
warn('filter "' + name + '" not supported yet');