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115 Commits

Author SHA1 Message Date
Yury Delendik
15681adbb9 Merge pull request #5245 from Snuffleupagus/issue-5244 
Further amend GlyphMapForStandardFonts (issue 5244)
 2014-09-16 10:12:07 -05:00
Brendan Dahl
403b7df6e7 Merge pull request #5233 from Snuffleupagus/bug-1057544 
Workaround for TrueType fonts with exotic cmap tables (bug 1057544)
 2014-09-15 14:47:31 -07:00
Jonas Jenwald
7b3f222787 Add |SpecialPUASymbols| map and refactor |mapSpecialUnicodeValues| 2014-09-04 13:41:15 +02:00
Jonas Jenwald
2d5596172c Add more cases to |mapSpecialUnicodeValues| to fix the rendering of various Symbol encoded brackets 2014-09-04 12:40:15 +02:00
Jonas Jenwald
4bda6ba1b8 Add basic support for ZapfDingbats 2014-09-03 21:54:04 +02:00
Jonas Jenwald
be595d0721 Further amend GlyphMapForStandardFonts (issue 5244) 2014-09-01 10:51:22 +02:00
Jonas Jenwald
cc8710acbf Workaround for TrueType fonts with exotic cmap tables (bug 1057544) 2014-08-23 11:27:41 +02:00
Jonas Jenwald
ae896fc071 Avoid creating intermediate strings in sanitizeMetrics 
This patch avoids creating many intermediate strings, when adding dummy width/lsb entries for glyphs where those are missing.
For the relevant PDF files in our test suite, the average number of intermediate strings are well over 1000.
 2014-08-20 23:55:57 +02:00
Yury Delendik
a2c2f81167 Use cff glyph width in the hmtx table 2014-08-14 16:11:09 -05:00
Yury Delendik
0ad323f621 Adds width at the beginning of the Type2 charstring 2014-08-13 21:15:40 -05:00
Nicholas Nethercote
61e6b576d4 Avoid an allocation in readCharCode(). 
readCharCode() returns two values, and currently allocates a length-2
array on every call to do so. This change makes it instead us a
passed-in object which can be reused.

This tiny change reduces the total JS allocations done for the document
in Mozilla bug 992125 by 4.2%.
 2014-08-12 16:12:58 -07:00
Yury Delendik
ab8270ae3a Fixes searchRange calculation 2014-08-10 14:11:04 -05:00
Yury Delendik
42771159ca Removes stringToArray 2014-08-10 14:11:04 -05:00
Yury Delendik
350556f085 Removes bytesToString/stringToArray conversions in the font.js 2014-08-10 14:11:04 -05:00
Nicholas Nethercote
f82977caf9 Simplify isIdentityUnicode detection. 2014-08-08 02:02:42 -07:00
Nicholas Nethercote
6c8cca1284 Add IdentityToUnicodeMap class. 
When loading the PDF from issue #4935, this change reduces peak RSS from
~2400 to ~300 MiB, and improves overall speed by ~81%, from 6336 ms to
1222 ms.
 2014-08-07 20:45:11 -07:00
Nicholas Nethercote
9576047f0d Add ToUnicodeMap class. 2014-08-07 20:05:24 -07:00
Yury Delendik
46a9a35ddc Merge pull request #5071 from nnethercote/font-savings 
Optimize a font-heavy document
 2014-08-05 18:57:46 -05:00
Yury Delendik
fa53fcbf57 Merge pull request #5095 from Snuffleupagus/issue-5070 
Adjust the heuristics to recognize more cases of unknown glyphs for |toUnicode| (issue 5070)
 2014-08-05 17:41:38 -05:00
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
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
97b3eadbc4 Add strict equalities in src/core/fonts.js 2014-08-01 21:56:03 +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
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
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
Tim van der Meij
62e6265fb3 Merge pull request #5074 from nnethercote/readPostScriptTable-join 
Use Array.join to build up strings in readPostScriptTable().
 2014-07-25 21:26:54 +02:00
Nicholas Nethercote
1039791472 Use Array.join to build up strings in readPostScriptTable(). 
This avoids about 5 MiB of string allocations on one test case.
 2014-07-24 16:12:08 -07:00
Nicholas Nethercote
c7f02d2c8e Minimize memory usage of font-related arrays. 
This patch replaces some vanilla arrays with typed arrays, and avoids
some array copying.

It reduces the peak RSS when viewing
http://www.dynacw.co.jp/Portals/3/fontsamplepdf/sample_4942546800828.pdf
from ~940 MiB to ~750 MiB, and reduces its load time from 83 to 76 ms.
 2014-07-22 22:47:45 -07:00
Jonas Jenwald
f13c217b25 Fix another seac regression (issue 4801) 2014-07-22 21:44:13 +02:00
Jonas Jenwald
a7c786775d [CIDFontType2] Map characters missing in toUnicode to the private use area (bug 1028735 and issue 4881) 2014-07-05 00:18:51 +02:00
Jonas Jenwald
c5f4051a75 A few small optimizations of adjustMapping 
Replace a couple of |in| checks with comparisons against undefined.
 2014-06-27 00:59:42 +02:00
Jonas Jenwald
c121def806 A few small optimizations for CIDFontType2 fonts 
Cache a constant length and replace one usage of |in| with a comparison against undefined.
 2014-06-27 00:52:54 +02:00
Yury Delendik
10db93be29 Merge pull request #4980 from Snuffleupagus/bug-1027533 
Additional heuristics to recognize unknown glyphs for toUnicode (bug 1027533)
 2014-06-23 21:56:13 -05:00
Yury Delendik
c28839b2f3 Merge pull request #4944 from Snuffleupagus/issue-4934 
Don't blindly trust toUnicode when building toFontChar for non-standard fonts without a font file (issue 4934)
 2014-06-23 21:49:24 -05:00
Jonas Jenwald
b19bb74813 Additional heuristics to recognize unknown glyphs for toUnicode (bug 1027533) 2014-06-20 09:57:16 +02:00
Yury Delendik
0cd28ebfa3 Telemetry for used stream and font types 2014-06-16 16:41:04 -05:00
Jonas Jenwald
158790981c Don't blindly trust toUnicode when building toFontChar for non-standard fonts without a font file (issue 4934) 2014-06-14 22:59:08 +02:00
Jonas Jenwald
3c5dedf60d Prevent font error when no preferred cmap table is found (workaround for issue 4800) 2014-05-27 17:30:11 +02:00
Yury Delendik
e5a0d89da9 Refactors loadFont for translateFont be async; fixes type3 dup data 2014-05-19 16:27:54 -05:00
Jonas Jenwald
3e1db41ddd Fix loading of fonts with empty font files (bug 866395 and issue 3522) 2014-05-18 21:41:06 +02:00
Jonas Jenwald
0fa154be4e Amend GlyphMapForStandardFonts to fix issue 4276 2014-04-30 15:56:40 +02:00
Jonas Jenwald
747dec16b2 Prevent trying to map characters to the specials unicode block in adjustMapping (issue 4650) 2014-04-28 23:33:54 +02:00
Yury Delendik
98e023e464 Guesses Type1C font type based on file content 2014-04-24 11:48:18 -05:00
Yury Delendik
9a5c121e4d Fixes invalid CFF name for Mac OSX 2014-04-17 10:50:06 -05:00
Yury Delendik
a22258a6b3 Merge pull request #4638 from yurydelendik/issue4630 
Recognizes ASCII type1 encoding
 2014-04-17 08:39:31 -05:00
Yury Delendik
bf3a2488df Recognizes ascii type1 encoding 2014-04-17 07:52:33 -05:00
fkaelberer
b06c10cbbd rename getUint32 to getInt32 and collect readInt*() in util.js 2014-04-16 21:31:16 +02:00
Rob Wu
2e97c0d085 Remove some unused variables from src/ 
Only obviously useless, local variables have been removed.
 2014-04-15 17:10:23 +02:00
Yury Delendik
65fa25ca36 Fixes number of glyphs in the generated font 2014-04-12 13:25:13 -05:00