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2510 Commits

Author SHA1 Message Date
fkaelberer
5b83e0b9a3 Faster JBIG2 bitmap decoding 2014-08-05 16:12:45 +02:00
Nicholas Nethercote
51055e5836 Make IdentityCMaps more compact. 
IdentityCMap uses an array to represent a 16-bit unsigned identity
function. This is very space-inefficient, and some files cause multiple
IdentityCMaps to be instantiated (e.g. the one from #4580 has 74).

This patch make the representation implicit.

When loading the PDF from issue #4580, this change reduces peak RSS from
~370 to ~280 MiB. It also improves overall speed on that PDF by ~30%,
going from 522 ms to 366 ms.
 2014-08-05 03:01:39 -07:00
Yury Delendik
6865c284a7 Merge pull request #5111 from nnethercote/better-cidchars 
Represent cid chars using integers, not strings.
 2014-08-04 22:26:55 -05:00
Yury Delendik
f750e35224 Optimizes functions to not create arrays 2014-08-04 11:23:11 -05:00
Yury Delendik
cb81bd6be6 Compiles some of the FunctionType 4 2014-08-04 11:21:31 -05:00
Jonas Jenwald
8ecbb4da05 Adjust the heuristics to recognize more cases of unknown glyphs for |toUnicode| (issue 5070) 2014-08-03 21:18:23 +02:00
Jonas Jenwald
b918df3547 Re-factor heuristics to recognize unknown glyphs for |toUnicode| 2014-08-03 21:12:36 +02:00
Jonas Jenwald
4b54d6fd43 Add strict equalities in src/core/stream.js 2014-08-02 17:59:14 +02:00
Jonas Jenwald
7fa204c805 Add strict equalities in src/core/parser.js 2014-08-02 17:37:24 +02:00
Tim van der Meij
cb59b5772b Merge pull request #5120 from Snuffleupagus/strict-equalities-src-core-2 
Add strict equalities in src/core/* (part 2)
 2014-08-02 13:51:14 +02:00
Tim van der Meij
4899e9e54f Use strict equalities in src/core/jbig2.js 2014-08-01 23:02:57 +02:00
Tim van der Meij
5d0fde4a2c Use strict equalities in src/core/jpx.js 2014-08-01 23:02:57 +02:00
Tim van der Meij
2796d1bf10 Use strict equalities in src/core/jpg.js 2014-08-01 23:02:56 +02:00
Tim van der Meij
160c7cab33 Use strict equalities in src/core/image.js 2014-08-01 23:02:55 +02:00
Jonas Jenwald
fb9fea2f36 Add strict equalities in src/core/worker.js 2014-08-01 22:17:47 +02:00
Jonas Jenwald
c9fb3e1b6d Add strict equalities in src/core/ps_parser.js 2014-08-01 22:02:10 +02:00
Jonas Jenwald
ee371fe6b2 Add strict equalities in src/core/pattern.js 2014-08-01 21:56:04 +02:00
Jonas Jenwald
ee0c0dd8a9 Add strict equalities in src/core/obj.js 2014-08-01 21:56:04 +02:00
Jonas Jenwald
a154ca2dd3 Add strict equalities in src/core/murmurhash3.js 2014-08-01 21:56:04 +02:00
Jonas Jenwald
8f5894d81a Add strict equalities in src/core/function.js 2014-08-01 21:56:03 +02:00
Jonas Jenwald
97b3eadbc4 Add strict equalities in src/core/fonts.js 2014-08-01 21:56:03 +02:00
Tim van der Meij
00eea3ddb9 Merge pull request #5116 from Snuffleupagus/strict-equalities-src-core 
Add strict equalities in src/core/* (part 1)
 2014-08-01 21:50:05 +02:00
Tim van der Meij
df0b821141 Merge pull request #5113 from Snuffleupagus/strict-equalities-src-display 
Add strict equalities in src/display/*
 2014-08-01 20:51:18 +02:00
Tim van der Meij
0b8b763eda Merge pull request #5112 from Snuffleupagus/strict-equalities-src-shared 
Add strict equalities in src/shared/*
 2014-08-01 20:00:57 +02:00
Jonas Jenwald
87038e44cd Add strict equalities in src/core/evaluator.js 2014-08-01 18:40:10 +02:00
Jonas Jenwald
83a4c68df9 Add strict equalities in src/core/core.js 2014-08-01 18:40:10 +02:00
Jonas Jenwald
0012b8803c Add strict equalities in src/core/colorspace.js 2014-08-01 18:40:09 +02:00
Jonas Jenwald
84503c656d Add strict equalities in src/core/bidi.js 2014-08-01 18:39:46 +02:00
Jonas Jenwald
2162a19ed9 Add strict equalities in src/core/arithmetic_decoder.js 2014-08-01 18:39:46 +02:00
Jonas Jenwald
9cb09324d2 Add strict equalities in src/core/annotation.js 2014-08-01 18:39:45 +02:00
Jonas Jenwald
4a82dac45b Add strict equalities in src/display/svg.js 2014-08-01 12:41:03 +02:00
Jonas Jenwald
790ec92a34 Add strict equalities in src/display/pattern_helper.js 2014-08-01 12:40:38 +02:00
Jonas Jenwald
ec6ec13506 Add strict equalities in src/display/metadata.js 2014-08-01 12:40:16 +02:00
Jonas Jenwald
c1f1f2f0e1 Add strict equalities in src/display/canvas.js 2014-08-01 12:39:56 +02:00
Jonas Jenwald
a4b06d7a02 Add strict equalities in src/display/api.js 2014-08-01 12:39:31 +02:00
Jonas Jenwald
ccd71e0a94 Add strict equalities in src/shared/util.js 2014-08-01 12:18:40 +02:00
Jonas Jenwald
42e541a671 Add strict equalities in src/shared/fonts_utils.js 2014-08-01 12:18:35 +02:00
Nicholas Nethercote
adf58ed687 Represent cid chars using integers, not strings. 
cid chars are 16-bit unsigned integers. Currently we convert them to
single-char strings when inserting them into the CMap, and then convert
them back to integers when extracting them from the CMap. This patch
changes CMap so that cid chars stay in integer format throughout, saving
both time and space.

When loading the PDF from issue #4580, this change reduces peak RSS from
~600 to ~370 MiB. It also improves overall speed on that PDF by ~26%,
going from 724 ms to 533 ms.
 2014-08-01 02:35:17 -07:00
fkaelberer
c03cf20d37 Fix JBIG2 decoding issue #5026 2014-08-01 09:02:25 +02:00
Yury Delendik
ad2ea78280 Merge pull request #5101 from nnethercote/CMap-forEach 
Avoid expensive for..in loops involving CMaps
 2014-07-31 23:03:25 -05:00
Nicholas Nethercote
28687bca75 Optimize CMap.prototype.forEach(). 
This change avoids the element stringification caused by for..in for the
vast majority of CMaps.

When loading the PDF from issue #4580, this change reduces peak RSS from ~650
to ~600 MiB, and improves overall speed by ~20%, from 902 ms to 713 ms.  Other
CMap-heavy documents will also see improvements.
 2014-07-30 06:28:47 -07:00
Nicholas Nethercote
b86daed29d Make CMap.map quasi-private. 
This makes it easier for the representation to be improved.
 2014-07-30 06:26:35 -07:00
Yury Delendik
7026543663 Merge pull request #5059 from timvandermeij/unused-code 
Removing unused code and enforcing additional JSHint options
 2014-07-29 15:04:43 -05:00
Jonas Jenwald
2264748109 Merge pull request #5096 from nnethercote/bidi-length 
Right-size |chars.length| and |type.length| in bidi().
 2014-07-29 12:19:22 +02:00
Nicholas Nethercote
f1d5ec407e Right-size |chars.length| and |type.length| in bidi(). 
This lets the JS engine resize the array elements buffer immediately,
thus avoiding some intermediate resizings. This can save multiple MiBs
of reallocation in text-heavy files.
 2014-07-28 16:35:45 -07:00
Yury Delendik
6038ee7cff Merge pull request #5063 from Snuffleupagus/ps-parser-avoid-intermediate-string-creation 
Avoid creating intermediate strings in the PostScriptLexer
 2014-07-28 15:07:32 -05:00
Jonas Jenwald
4960af3a4c Avoid creating intermediate strings in the PostScriptLexer 2014-07-27 13:51:28 +02:00
Jonas Jenwald
a5c98aab36 Re-factor parsing of the Linearization dictionary 2014-07-27 12:56:09 +02:00
Jonas Jenwald
86f9503876 Remove src/core/cidmaps.js 2014-07-25 21:53:17 +02:00
Jonas Jenwald
c3c72948b9 Stop including cidmaps.js 
In b5b94a4af3, i.e. PR #4259, we stopped using cidmaps.js. Despite that, it's still included when PDF.js is built. At almost 0.5 MB (and approx. 7000 lines), this is currently the single largest file in the codebase.
Including such a large file in the builds, when it is not actually used, seems extremely wasteful; hence this patch.
 2014-07-25 21:53:09 +02:00