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317 Commits

Author SHA1 Message Date
Jonas Jenwald
ee0d522187 Use adjustWidths for TrueType fonts if we handle them as OpenType (issue 5027, issue 5084, issue 6556, bug 1204903) 
In `Font_checkAndRepair` we can decide that a font isn't TrueType, and instead parse it as CFF. In that case it's quite possible that the `fontMatrix` will be changed, and without calling `adjustWidths` we're failing to update the glyph widths correctly.

Fixes 5027.
Fixes 5084.
Fixes 6556.
Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1204903.
 2015-12-08 00:49:22 +01:00
Jonas Jenwald
4810b7b8fc Fix the charCodeOf method in IdentityToUnicodeMap in order to prevent text selection from breaking 
After PR 6590, `font.spaceWidth` is now called in more cases than before (in `PartialEvaluator_getTextContent`), which exposed an underlying issue with `IdentityToUnicodeMap_charCodeOf` throwing an error.
This breaks text-selection in some PDF files found in the wild, hence this patch replaces the `error` with an actual function instead (modelled after `IdentityCMap_charCodeOf`).
 2015-12-05 13:15:55 +01:00
Brendan Dahl
87762afec4 Remove glyph id's outside the range of valid glyphs. 
OTS does not like invalid glyph ids in a camp table.
 2015-12-03 11:53:06 -08:00
Manas
a2ba1b8189 Uses editorconfig to maintain consistent coding styles 
Removes the following as they unnecessary
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 2015-11-14 07:32:18 +05:30
Jonas Jenwald
ff64ef0243 Prevent readCmapTable from failing if the cmap is missing in TrueType fonts 
Fixes http://arrow.dit.ie/cgi/viewcontent.cgi?article=1000&context=aaschadpoth#page=3.
 2015-11-08 16:48:37 +01:00
Yury Delendik
cc5bc18728 Fixes incorrect PDF file font metrics. 2015-11-06 14:47:10 -06:00
Yury Delendik
fa46b73c47 Better spacing in text layer. 2015-11-02 08:54:15 -06:00
Jonas Jenwald
29a1cdb6a6 Only choose a (3, 1) cmap table for TrueType fonts that have an encoding specified (issue 6410) 
For (1, 0) cmaps, we have two different codepaths depending on whether the font has/hasn't got an encoding. But with (3, 1) cmaps we don't have a good fallback when the encoding is missing, hence this patch changes `readCmapTable` to only choose a (3, 1) cmap table if the font is non-symbolic *and* an encoding exists. Without this, we'll not be able to successfully create a working glyph map for some TrueType fonts with (3, 1) cmap tables.

Fixes 6410.
 2015-09-07 16:56:05 +02:00
Jonas Jenwald
0fb31a4a9e Fallback in readCmapTable, instead of using error, for TrueType fonts with unsupported cmap formats (bug 1200096) 
Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1200096.

The problematic font has a `format 2` cmap, which we've never supported properly. Prior to PR 2606, we were able to fallback to a working state, despite not having proper support for that cmap format.

Obviously the best/correct solution would be to implement actual support for more cmap formats[1]. However, I'm hoping that a simple patch will be OK for now, given that:
 - `format 2` cmaps seem to be quite rare in practice, since this has been broken for 2.5 years before anyone noticed.
 - Having a simple patch will make potential uplifts a lot easier.

[1] See the specification at https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6cmap.html
 2015-09-01 14:01:19 +02:00
Jonas Jenwald
99d29487ab Adjust which TrueType (3, 1) glyphs we attempt to skip mapping of (issue 6336) 
Fixes 6336.
 2015-08-09 12:51:43 +02:00
Jonas Jenwald
0a024b5051 Adjust the heuristics used to detect OpenType font file with CFF data (bug 1186827, bug 1182130, issue 6264) 
*This is a tentative patch.*

Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1186827.
Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1182130.
Fixes 6264.
 2015-07-25 12:26:36 +02:00
Tim van der Meij
5af49f8bbb Merge pull request #6166 from Snuffleupagus/issue-5801-2 
Add a supplemental glyph map for non-embedded ArialBlack fonts (issue 5801)
 2015-07-10 22:29:50 +02:00
Yury Delendik
0787182e6f Adds more characters to the PUA range 2015-07-02 16:47:47 -05:00
Jonas Jenwald
d0477302be Add a supplemental glyph map for non-embedded ArialBlack fonts (issue 5801) 
This should, hopefully, finally fix 5801.
 2015-07-01 22:16:52 +02:00
Jonas Jenwald
aa3a64e975 Skip mapping of CIDFontType2 glyphs when the font either has a |IdentityToUnicodeMap| or a |toUnicodeMap| with 65536 elements (issue 5677) 
This patch slightly extends the heuristics used when trying to skip mapping of missing glyphs.

Fixes 5677.
 2015-06-18 21:53:15 +02:00
Jonas Jenwald
bf20334bea Merge pull request #6090 from Snuffleupagus/issue-6068 
Map missing glyphs to the notdef glyph for TrueType (3, 1) fonts (issue 6068)
 2015-06-13 00:29:08 +02:00
Jonas Jenwald
5eae3e29c5 Map missing glyphs to the notdef glyph for TrueType (3, 1) fonts (issue 6068) 
Fixes 6068.

The most notable issue with the font in question is that the `differences` array contains lots of strange entries (of the type `uniXXXX`, instead of proper glyph names).
 2015-06-06 18:28:16 +02:00
Jonas Jenwald
6f2f0700b7 Don't map glyphs to certain problematic Thai/Lao Unicode locations (issue 5994) 
*This patch depends on PR 5990.*

According to https://dxr.mozilla.org/mozilla-central/source/gfx/harfbuzz/src/hb-ot-shape-fallback.cc#38, certain Thai/Lao characters are treated as special by the font shaping code in Firefox.
Further down in that file, https://dxr.mozilla.org/mozilla-central/source/gfx/harfbuzz/src/hb-ot-shape-fallback.cc#216, the vertical position of glyphs is modified, which should thus explain why some glyphs end up in the wrong position in the PDF file.

Fixes 5994.
 2015-06-05 23:53:22 +02:00
Brendan Dahl
749a60a0b7 Merge pull request #5990 from Snuffleupagus/missing-glyphs-identityUnicode 
Skip mapping of CIDFontType2 glyphs in fonts with a |IdentityToUnicodeMap|, unless |properties.widths| is defined for the glyph
 2015-06-05 14:50:02 -07:00
Jonas Jenwald
6fbc5428bd Skip mapping of CIDFontType2 glyphs in fonts with a |IdentityToUnicodeMap|, unless |properties.widths| is defined for the glyph 
Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1142033.
Also fixes issue 5874.
 2015-05-14 22:38:04 +02:00
Jonas Jenwald
0365baf5ab Fall back to the |defaultEncoding| when no valid "post" table is found in TrueType fonts (bug 1050040) 
Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1050040.

With this patch the file is completely readable, but given that the font is broken enough to be rejected by OTS the rendering differs slightly from Adobe Reader.

*Note:* the PDF file is sufficiently broken that even Adobe Reader complains about the font, *and* also about another more general issue.
 2015-05-14 13:16:14 +02:00
Jonas Jenwald
70b839386a Ensure that the cmap position is within the bounds of the font file in |readCmapTable| 2015-05-14 13:16:09 +02:00
Tim van der Meij
b34366d2fc Merge pull request #5898 from stri8ed/master 
Extract more accurate glyph heights from type3 fonts
 2015-05-13 21:07:17 +02:00
Tim van der Meij
48b2f6d023 Merge pull request #5756 from Snuffleupagus/issue-5751 
Guess CIDFontType0 subtype based on font file contents (issue 5751)
 2015-04-24 23:50:07 +02:00
Jonas Jenwald
fda858ae33 Don't map glyphs to certain problematic General Punctuation Unicode locations (bug 911034) 
Fixes the remaining missing characters in https://bugzilla.mozilla.org/show_bug.cgi?id=911034.

For reference, see http://www.unicode.org/charts/PDF/U2000.pdf (and also http://en.wikipedia.org/wiki/General_Punctuation_%28Unicode_block%29).
 2015-04-09 17:27:03 +02:00
Jonas Jenwald
a54ec673c5 Move the checks for problematic Unicode locations from |adjustMapping| to a separate helper function 2015-04-09 12:56:29 +02:00
Levi Melamed
a5159a7942 extract more accurate glpyh heights from type-3 fonts 2015-04-03 08:49:06 -05:00
Jonas Jenwald
2b1a13ba28 Don't map glyphs to Unicode position 0x0E33, i.e. Thai character SARA AM (bug1046314) 
*A similar approach as in PR 5705.*

Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1046314.

According to https://dxr.mozilla.org/mozilla-central/source/gfx/harfbuzz/src/hb-ot-shape-complex-thai.cc#270-365, `0x0E33` is treated as a special case (by the font shaping code in Firefox). Hence it seems reasonable to skip it when adjusting the font mapping.
 2015-03-26 13:22:45 +01:00
Brendan Dahl
3a8d4a7d72 Merge pull request #5713 from Snuffleupagus/evaluator-IdentityToUnicodeMap 
Create a IdentityToUnicodeMap in evaluator.js when toUnicode contains IdentityH/IdentityV
 2015-03-25 10:33:29 -07:00
Brendan Dahl
519b6669f0 Merge pull request #5705 from Snuffleupagus/bug-1108301 
Don't map glyphs to Unicode "Dotted circle" combining mark (bug 1108301)
 2015-03-24 16:33:04 -07:00
Jonas Jenwald
e894a0a4c6 Guess CIDFontType0 subtype based on font file contents (issue 5751) 2015-03-15 13:35:48 +01:00
Jonas Jenwald
f81fc9091a Correctly detect OpenType font files with CFF data 
Fixes 5334.
Fixes 215.
Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1125614.

According to the specification, http://www.microsoft.com/typography/otspec/otff.htm, OpenType font files with CFF data should have `OTTO` in the header.
 2015-02-28 13:43:53 +01:00
Jonas Jenwald
0a3341dadc Don't map glyphs to Unicode "Dotted circle" combining mark (bug 1108301) 
It seems that `0x25CC` is another bad spot for charCodes.
Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1108301.
 2015-02-27 00:20:38 +01:00
Jonas Jenwald
417800a1b5 Only skip the |!isSymbolicFont| check for TrueType (3, 1) cmap tables if no previous cmap table was found (PR 5703 followup) 
Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=894572.
 2015-02-19 13:58:03 +01:00
Jonas Jenwald
592890a758 Relax the |isSymbolicFont| check for TrueType (3, 1) cmap tables (issue 5701) 2015-02-13 01:03:10 +01:00
Brendan Dahl
394b38b22f Merge pull request #5651 from Snuffleupagus/missing-glyphs 
Try to skip mapping of missing TrueType and CIDFontType2 glyphs
 2015-02-11 19:31:22 -08:00
Brendan Dahl
fb8200096b Merge pull request #5634 from Snuffleupagus/cmap-0,0 
Add support for TrueType (0, 0) cmap tables (issue 5501, issue 5574, and bug 1037973)
 2015-02-11 15:04:03 -08:00
Jonas Jenwald
f19a1db414 Create a IdentityToUnicodeMap in evaluator.js when toUnicode contains IdentityH/IdentityV 
Currently if a font contains a `toUnicode` entry, we always create a new `ToUnicodeMap` in evaluator.js. This is done even for `IdentityV/IdentityH`, despite to possibility to use the much more compact `IdentityToUnicodeMap` representation.
This patch refactors the `IdentityH/IdentityV` cases, to:
 - Avoid calling `IdentityCMap.getMap`, since this prevents allocating and iterating through an array with 65536 elements.

 - Ensure that the handling of `toUnicode` is actually correct in fonts.js.
We rely on `toUnicode instanceof IdentityToUnicodeMap` in a few places, and currently this does not work correctly for `IdentityH/IdentityV`.
 2015-02-09 16:52:31 +01:00
Jonas Jenwald
01e6565dd4 Try to skip mapping of missing TrueType glyphs 
Also don't skip mapping of glyphs which are empty, if the corresponding charCode is included in toUnicode.
 2015-02-07 12:19:38 +01:00
Jonas Jenwald
8174da61fb Don't skip mapping of glyphs for CIDFontType2 fonts with a CIDToGIDMap 
Also don't skip mapping of glyphs which are empty, if the corresponding charCode is included in toUnicode.
 2015-02-07 12:19:37 +01:00
Brendan Dahl
cb27707277 Try to skip mapping of missing glyphs. 2015-02-07 12:19:37 +01:00
Jonas Jenwald
c2c54257f2 Prevent setting |isStandardFont| to |undefined| for non-embedded fonts 
This is a very small follow-up to PR 5536, which sets `isStandardFont` to `false` instead of `undefined` (as currently happens for some font names).

Since the patch is so small, I hope it's OK to also fix an unrelated copy-and-paste error in a comment that was added in PR 5260.
 2015-01-13 15:44:34 +01:00
Jonas Jenwald
ad41a2d574 Add support for TrueType (0, 0) cmap tables (issue 5501 and 5574) 2015-01-11 14:54:12 +01:00
Jonas Jenwald
d8b905048b Add fallback for non-embedded "Century Gothic" CIDFontType2 font (issue 4722 and bug 879561) 
According to practical experiments, falling back to "Helvetica" when we encounter a non-embedded "[Century Gothic](http://en.wikipedia.org/wiki/Century_Gothic)" `CIDFontType2` font seems to work well.
(Also, the section on Wikipedia about "Printer ink usage" *might* provide some anecdotal evidence that Century Gothic is a fairly standard sans-serif font.)

Obviously this patch doesn't make "Century Gothic" fonts render perfectly, as is often the case with non-embedded fonts, but all the text is now legible in the referenced issues.

Fixes 4722.
Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=879561.
 2014-12-18 23:19:34 +01:00
Yury Delendik
31ae5f2a3d Merge pull request #5379 from brendandahl/nbsp 
Don't map glyphs to unicode non breaking space.
 2014-12-18 13:38:03 -06:00
Jonas Jenwald
96a77e9d6a Add basic support for non-embedded Wingdings fonts 
This is a tentative patch that adds *very* basic support for non-embedded Wingdings fonts (a Windows version of Dingbats), by falling back to the ZapfDingbats encoding. Obviously this approach will not work perfectly, but in my opinion it seems to work reasonably well in pratice.

Instead of this very simple patch, another option would be to try and include more complete glyph data for Wingdings, e.g. a Unicode map and glyph widths, similar to what was done for ZapfDingbats.
However there is, in my opinion, one important difference between Wingdings and ZapfDingbats: ZapfDingbats is part of the 14 standard fonts, which in previous versions of the PDF specification was assumed to be available in PDF readers. To improve compatibility with older files, it thus makes sense for us to include data for ZapfDingbats.
However Wingdings has never been a standard font in PDF files, hence PDF files using it *should* thus contain all the necessary font data.

Given the above, I thus believe that it should be OK to fall back to ZapfDingbats for now. If non-embedded Wingdings fonts turns out to be *a lot* more common, then we can revisit this later.

Fixes 4301 completely.
Fixes 4837 almost completely. With this patch the bullets are displayed correctly, but the arrows are not of the correct type.
Fixes `artofwar.pdf`, pages 14 and 15.
 2014-12-09 00:28:22 +01:00
Brendan Dahl
8a536ac346 Map missing glyphs in encoding to notdef glyph. 2014-10-03 12:11:20 -07:00
Brendan Dahl
2fc5e6a9ad Don't map glyphs to unicode non breaking space. 2014-10-02 10:58:56 -07:00
Jonas Jenwald
df2a4afd36 Use |toUnicode| when creating the glyph map for standard CIDFontType2 fonts without embedded font file 2014-09-27 13:20:04 +02:00
Yury Delendik
744c8e8d7e Merge pull request #5250 from Snuffleupagus/issue-5238 
Fix Symbol fonts without font file but with Encoding dictionary (issue 5238)
 2014-09-26 15:18:33 -05:00
Jonas Jenwald
3c759e296a Add support for MMType1 fonts with embedded font files 2014-09-18 16:10:46 +02:00
Jonas Jenwald
b16c973d9d Fix Symbol fonts without font file but with Encoding dictionary (issue 5238) 2014-09-16 21:38:53 +02:00
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
Brendan Dahl
b242826d29 Fix seac regression. 2014-04-11 09:55:39 -07:00
Yury Delendik
88c1747cc3 Heuristics to recognize the unknown glyphs for toUnicode 2014-04-10 19:21:09 -05:00
Tim van der Meij
df91acf239 Fixes lint warning W004 in src/core 2014-04-11 00:41:08 +02:00
Brendan Dahl
5bd8a83c9b Build the text layer geometry on the worker. 2014-04-09 16:44:07 -07:00
Yury Delendik
9ccdbbcb55 Merge pull request #4574 from Snuffleupagus/bug-850854 
Handle 'space' character correctly in WinAnsiEncoding (bug 850854)
 2014-04-09 14:36:49 -05:00
Brendan Dahl
a6e5f31ca1 Merge pull request #4423 from chriskr/font-aliases 
Treat fonts with the same font descriptor and encoding as aliases
 2014-04-09 10:26:09 -07:00
Christian Krebs
79f34b183c Treat fonts with the same font descriptor, encoding and unicode map as aliases 
Different fonts can point to the same font descriptor
(see https://github.com/mozilla/pdf.js/issues/4339 for details). With this
commit such fonts are treated as aliases if they have also the same encoding
and the same toUnicode map. The according info is stored on the font descriptor.
This change must also ensure that aliases use always the same font name
because translated fonts can get cleared depending on the CLEANUP_TIMEOUT setting.
 2014-04-08 20:45:21 +02:00
Jonas Jenwald
9e6c66be12 Handle 'space' character correctly in WinAnsiEncoding (bug 850854) 2014-04-08 13:07:29 +02:00
Jonas Jenwald
8fc4ebd5cb Handle 'space' character correctly in MacRomanEncoding (bug 878026) 2014-04-07 20:59:26 +02:00
fkaelberer
c978c026fa clean up string conversion functions 2014-03-27 13:01:43 +01:00
Jonas Jenwald
66e243f506 Fix coding style in src/core/fonts.js 2014-03-22 16:19:07 +01:00
Brendan Dahl
10deadd416 Merge pull request #4453 from nnethercote/charToGlyph 
Add a cache for glyphs
 2014-03-19 16:30:02 -07:00
Brendan Dahl
1802ffffb8 Merge pull request #4447 from nnethercote/object-reduction 
Allocate fewer objects
 2014-03-17 12:50:23 -07:00
Brendan Dahl
68be273c69 Merge pull request #4470 from yurydelendik/packcmap 
CMaps binary packing
 2014-03-17 12:27:35 -07:00
Jonas Jenwald
5f021b067c Prevent infinite loop in CFFParser_parseHeader 2014-03-17 11:47:14 +01:00
Yury Delendik
69efd9cb96 CMaps binary packing 2014-03-14 16:46:35 -05:00
Juraj Sukop
4c2a462a76 Fix copy-paste typo 
The Compact Font Format Specification defines the Standard String of SID 237 as "twodotenleader", and not "266 ff".
 2014-03-14 14:11:16 +01:00
Nicholas Nethercote
6c698519cd Avoid allocations in executeCommand(). 2014-03-13 22:15:09 -07:00
Nicholas Nethercote
6a75e45309 Allocate fewer objects when parsing 2 and 4 byte chunks. 
This is achieved by adding getBytes2() and getBytes4() to streams, and by
changing int16() and int32() to take multiple scalar args instead of an array
arg.
 2014-03-13 22:15:05 -07:00
Nicholas Nethercote
0866ad5bff Add a cache for glyphs. 
This reduces memory consumption for text heavy documents. I tested five
documents and saw hit rates ranging from 97.4% to 99.8% (most of the misses are
due to |width| varying even when |fontChar| matches). On two of those documents
I saw improvements of 40 and 50 MiB.

The patch also introduces the Glyph constructor, and renames the |unicodeChars|
local variable as |unicode| for consistency with the corresponding Glyph
property.
 2014-03-13 19:51:48 -07:00
Yury Delendik
2778d75d2c Merge pull request #4437 from yurydelendik/issue4398 
Fixes corrupted by Aspose fonts
 2014-03-13 10:44:02 -05:00
Yury Delendik
7963f22545 Merge pull request #4259 from brendandahl/built-in-cmaps-squash 
Adds built in CMaps and unifies the glyph mapping.
 2014-03-13 10:27:48 -05:00
Ben Browitt
8b6aeee35c Follow JMPR op only if outside of FDEF and IF 2014-03-13 03:19:04 +02:00
Yury Delendik
7dbd088728 Fixes corrupted by Aspose fonts. 2014-03-11 14:16:27 -05:00
Yury Delendik
f04ebed579 Merge pull request #4366 from yurydelendik/max-fdefs 
Rejects invalid fpgm table when too many functions
 2014-03-05 06:16:44 -06:00
Yury Delendik
6fbbcf5c93 Merge pull request #4362 from Snuffleupagus/bug-925985 
Add 'registered' and 'trademark' to mapPrivateUseChars (bug 925985)
 2014-03-03 09:02:32 -06:00
Nicholas Nethercote
ab7568c0ff Use Array.join() to build up strings in more places. 2014-03-02 17:54:16 -08:00
Yury Delendik
adca8d4291 Rejects invalid fpgm table when too many functions 2014-03-02 15:40:48 -06:00
Jonas Jenwald
08687ee9f1 Add 'registered' and 'trademark' to mapPrivateUseChars (bug 925985) 2014-03-01 21:01:33 +01:00
Brendan Dahl
b187326022 Use default encoding for standard fonts without a file. 2014-02-25 11:28:17 -08:00
Brendan Dahl
f7fea015a9 Remove isFixedPitch check for now. 2014-02-24 17:39:51 -08:00
Brendan Dahl
f1c73edac4 Fix symbol fonts with no file. 2014-02-11 13:37:12 -08:00
Brendan Dahl
b5b94a4af3 Use built in CMaps and unify the glyph mapping. 2014-02-11 10:27:09 -08:00
Brendan Dahl
ff66c23e6e Merge pull request #4089 from yurydelendik/issue3725 
Takes ascent/descent in account in the text layer
 2014-01-16 13:12:04 -08:00
Brendan Dahl
508b00a34f Merge pull request #4071 from yurydelendik/bug921760 
Adds glyph mapping for standard fonts
 2014-01-08 12:36:54 -08:00
Yury Delendik
0131101275 Takes ascent/descent in account in the text layer 2014-01-08 13:50:52 -06:00
Yury Delendik
51b958dc2b Adds glyph mapping for standard fonts 2014-01-03 14:17:50 -06:00
Brendan Dahl
2228343f77 Only trigger warning bar on certain unsupported features. 2014-01-03 09:34:13 -08:00
Yury Delendik
9a633f26a0 Fixes gidStart for CID fonts 2013-11-13 18:27:52 -06:00
Yury Delendik
82a9a13e5f Fixes glyphs with invalid flags 2013-11-13 13:45:59 -06:00
Brendan Dahl
bd6871a1cd Merge pull request #3884 from yurydelendik/bug868745 
Resizes loca table when needed
 2013-11-11 14:59:18 -08:00
Brendan Dahl
558b722757 Merge pull request #3883 from yurydelendik/bug904941 
Fixes invalid maxZones value
 2013-11-11 09:57:38 -08:00
Tim van der Meij
6be8a2bd83 Merge pull request #3882 from yurydelendik/issue3438 
Ignoring glyphs without points
 2013-11-08 14:21:17 -08:00
Yury Delendik
57e2a667ee Fixes cvt table length; removes cvt when hints invalid 2013-11-08 11:38:36 -06:00
Yury Delendik
d4167b62c8 Merge pull request #3890 from sriram-dev/3205-word-spacing 
correct word spacing
 2013-11-08 09:18:00 -08:00
Brendan Dahl
e076eeb5bd Merge pull request #3877 from yurydelendik/issue1171 
Skipping empty font tables
 2013-11-08 09:12:04 -08:00
Sriram
8dad6d6e8a Fix word spacing in Type 0 fonts 
Fix word spacing in Type 0 font

correct word spacing

correct word spacing in type 0 font

fix word spacing
 2013-11-08 20:48:30 +05:30
Brendan Dahl
18d8557abd Merge pull request #3875 from yurydelendik/issue3025 
Removes duplicate entries after reading cmap table
 2013-11-07 12:29:25 -08:00
Brendan Dahl
90fb92d1fc Merge pull request #3869 from yurydelendik/symbolenc 
Renames Symbol encoding name.
 2013-11-06 11:15:08 -08:00
Brendan Dahl
c8e021dfa6 Merge pull request #3867 from yurydelendik/pfb 
Workaround for some bad Type1 data
 2013-11-06 11:14:42 -08:00
Yury Delendik
175341cb0d Resizes loca table when needed 2013-11-03 07:29:29 -06:00
Yury Delendik
cf55d69c38 Fixes invalid maxZones value 2013-11-02 18:16:24 -05:00
Yury Delendik
93076ced03 Ignoring glyphs without points 2013-11-02 17:07:13 -05:00
Yury Delendik
bbda42110b Skipping empty font tables 2013-11-01 19:05:17 -05:00
Yury Delendik
bb2570c9c1 Removes duplicate entries after reading cmap table 2013-11-01 16:30:28 -05:00
Yury Delendik
cd44093891 Workaround for some bad Type1 data 2013-11-01 13:58:33 -05:00
Yury Delendik
95d9107d8b Fixes reading Type1 FontBBox data for usWin values 2013-11-01 11:33:30 -05:00
Yury Delendik
104d89856d Renames Symbol encoding name. 2013-10-31 10:33:23 -05:00
Yury Delendik
83e17c2953 Avoiding 'pc is undefined' failures 2013-10-30 11:14:13 -05:00
Brendan Dahl
f79c182314 Proper glyph selection for CIDFontType0C fonts. 2013-09-30 21:40:28 -07:00
Brendan Dahl
f32e65b19f Read multi-byte character codes based on codespace ranges. 2013-09-25 10:32:04 -07:00
Yury Delendik
0fc8bac7c0 Merge pull request #3570 from brendandahl/encoding-wip 
Fix handling of multiply-encoded glyphs.
 2013-08-28 13:51:39 -07:00
Brendan Dahl
db591769a4 Fix handling of multiply-encoded glyphs. 2013-08-22 10:12:16 -07:00
Brendan Dahl
bb2529de03 Move the creation of canvas path fonts to the worker. 2013-08-19 16:33:20 -07:00
Brendan Dahl
5ecce4996b Split files into worker and main thread pieces. 2013-08-12 10:48:06 -07:00