AuroraMiddleware/harfbuzz
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4028 Commits

Author SHA1 Message Date
Behdad Esfahbod
127bcc6ece Merge remote-tracking branch 'fdo/master' 2018-01-05 12:50:22 +00:00
Behdad Esfahbod
8c0d1916a4 Improve CGJ skipping logic 
Previously we made CGJ unskippable.  Now, if CGJ did NOT prevent
any reordering, allow skipping over it.  To make this work we
had to make changes to the Arabic mark reordering algorithm
implementation to renumber moved MCM marks.  See comments.

Fixes https://github.com/harfbuzz/harfbuzz/issues/554
 2018-01-05 12:48:19 +00:00
Ebrahim Byagowi
72bec1cd09
Improve tests (#679) 2018-01-05 12:42:20 +03:30
Behdad Esfahbod
293e443529 Minor 2018-01-04 16:06:25 +00:00
Bruce Mitchener
8a0952db7e atomics: Favor compiler primitives over macOS APIs. (#676) 
In macOS 10.12, the `OSMemoryBarrier` and related APIs were deprecated
in favor of using `std::atomic`. On the way to supporting `std::atomic`,
we can favor using the "Intel primitives" which are also available on
macOS.
 2018-01-04 15:10:10 +03:30
Ebrahim Byagowi
5ed26fc5bd
[cmake] Run src/ tests (#675) 2018-01-04 10:11:34 +03:30
Behdad Esfahbod
f8daeef4c4 [use] Simplify more 2018-01-03 14:27:34 +00:00
Behdad Esfahbod
877d15e73c [use] Simplify 
Fixes https://github.com/harfbuzz/harfbuzz/pull/661
 2018-01-03 14:24:44 +00:00
Behdad Esfahbod
308f419215 [use] Fix Brahmi Number Joiner 1107F 
Fixes https://github.com/harfbuzz/harfbuzz/pull/660
 2018-01-03 14:22:07 +00:00
Bruce Mitchener
85ec6d3443 Fix typos. 2018-01-02 13:26:44 -05:00
David Corbett
7bfdf1a941 Forbid Batak killers after vowel signs 2017-12-24 14:21:22 -08:00
Behdad Esfahbod
72ecaae0ad [use] Allow ZWJ before/after Halant 
https://github.com/harfbuzz/harfbuzz/issues/542#issuecomment-353169729
 2017-12-24 16:05:07 -05:00
Behdad Esfahbod
bc92245b68 Minor 2017-12-24 15:54:58 -05:00
Volker H. Simonis
a9432bde7e HarfBuzz 1.7.1 and later don't compile on AIX with xlC (#655) 2017-12-19 20:22:24 -05:00
Behdad Esfahbod
2fe5f885b6 [set] Handle nil set in add_range() / add_sorted_array() 
Fixes https://github.com/harfbuzz/harfbuzz/issues/657
 2017-12-19 14:48:26 -05:00
Behdad Esfahbod
1245395a60 [coretext] In hb_coretext_font_create() set ptem 
Otherwise setting the CTFont was ineffective as it would have been
recreated anyway unless font size was set to 18 CSS points.
 2017-12-17 12:33:08 -05:00
Behdad Esfahbod
493a005d95 [set] In add_sorted_array(), bail if data is not sorted 2017-12-16 11:49:39 -05:00
Behdad Esfahbod
a7bd6d7a4c [collect_glyphs] Bail if input data looks like garbage 
Specificaly, when a range or sorted array has unexpected order, we take that as
font data being garbage and bail out.  This fixes significant slowdown on a bad
version of Chandas font which has a 600KB GPOS with garbage inside.

Later on, I like to add a maximum-work counter for collect_glyphs to protect
against malicious fonts as well.

Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=794896
 2017-12-16 11:39:32 -05:00
Behdad Esfahbod
1ce7d6e215 [set] Optimize add_array() / add_sorted_array() 
Does page lookup as needed.
 2017-12-16 11:39:11 -05:00
Behdad Esfahbod
71e6adf1e2 [collect_glyphs] handle ClassDef better 2017-12-16 11:07:37 -05:00
Behdad Esfahbod
87cc5a65cb [collect_glyphs] In PairPosFornat2 do not collect classDef1 
The coverage already covered that.
 2017-12-16 06:18:07 -08:00
Behdad Esfahbod
81f27df4d9 More work towards improving collect_glyphs() against bad input 
The three "XXXXX"'s should be switched to false.  Doing that separately for ease
of bisecting...
 2017-12-16 06:12:06 -08:00
Behdad Esfahbod
5d02572034 [set] Add add_sorted_array() 
Not optimized to use sortedness yet.  Also start putting in place infra
to faster reject bad data.

A version of Chandas.ttf found on some Chrome bots has 660kb of GPOS,
mostly junk.  That is causing 48 million of set->add() calls in
collect_glyphs(), which is insane.

In the upcoming commits, I'll be speeding that up by optimizing
add_sorted_array(), while also reducing work by rejecting out-of-sort
arrays quickly and propagate the rejection.

Part of https://bugs.chromium.org/p/chromium/issues/detail?id=794896
 2017-12-14 19:35:47 -08:00
Behdad Esfahbod
9d6511a734 [set] Reduce number of preallocated pages from 8 to 1 
Now that pagesize is 8192, this feels better.
 2017-12-14 19:07:17 -08:00
Behdad Esfahbod
ae2e2b068e Fix partial tracing debug builds 2017-12-14 19:07:17 -08:00
Behdad Esfahbod
9daa88cd79 Minor 2017-12-14 19:07:17 -08:00
Behdad Esfahbod
f424a34223 [set] Change pagesize from 512 bits to 8192 bits 
Fixes perf regression on some heavy fonts in Chrome's FT+HB
interaction.

See:
https://bugs.chromium.org/p/chromium/issues/detail?id=782220

More work to be done:
https://bugs.chromium.org/p/chromium/issues/detail?id=794896
 2017-12-14 13:30:38 -08:00
Behdad Esfahbod
0fe62c1f33 [set] Add add_array() 
To be used to optimize adding a whole bunch of (sorted) items at the same time,
as in CoverageFormat1.
 2017-12-14 10:39:00 -08:00
Behdad Esfahbod
03b7a221f7 [debug] Use %p to print pointers 
Fixes https://github.com/harfbuzz/harfbuzz/issues/640
 2017-12-05 13:13:58 -08:00
Nathan Willis
0dc03ef757 Indic: always hyphenate pre-base-reordering, for clarity. 2017-12-05 11:29:43 -08:00
Behdad Esfahbod
be59f3cbf4 Silence unused-variables warning on MSVC 
Fixes https://github.com/harfbuzz/harfbuzz/issues/635
 2017-12-05 09:01:28 -08:00
David Corbett
80c1b01f05 Allow digits in language system tags 2017-12-05 08:56:41 -08:00
David Corbett
85bb89a88b Fix string matching in parse_bool 2017-12-04 13:10:16 -08:00
Olivier Blin
0fd89dc61c [hb-ft] Fix build when Multiple Master font support is disabled in freetype 
FT_Set_Var_Blend_Coordinates() is not available when "Multiple Master
font interface" is disabled in freetype's modules.cfg
 2017-12-04 10:52:06 -08:00
Behdad Esfahbod
eeb26d21d4 [set] Actually commit fixes mentioned in previous commit! 2017-12-02 15:22:04 -08:00
Behdad Esfahbod
0744149cda [set] Protect against bad input in hb_set_add_range() 2017-12-02 15:06:15 -08:00
Behdad Esfahbod
d5e29303db [coretext] Add hb_coretext_font_create() 
Fixes https://github.com/harfbuzz/harfbuzz/issues/628

New API:
hb_coretext_font_create()
 2017-12-02 14:52:57 -08:00
Behdad Esfahbod
9d0194b3a8 [set] Optimize add_range() some more 
It's as good as it gets, and seems to be on par with previous set implementation
in my benchmark.

Would be great if someone can double-check my bitops.
 2017-12-01 13:56:06 -08:00
Behdad Esfahbod
438c325a25 [set] Optimize add_range() 
With new set implementation, this became really costy.  Optimize it.
There's more to be done, but this shaves off most of the fat.

Part of fixing https://bugs.chromium.org/p/chromium/issues/detail?id=782220
 2017-12-01 13:34:14 -08:00
Behdad Esfahbod
be9e307a88 [ot] Ensure layout in hb_ot_layout_table_get_lookup_count() 2017-12-01 12:37:05 -08:00
Behdad Esfahbod
16fba5b215 [ot] Fix Extension type recurse to disallow recursing to another Extension 
Particularly hazardous if the second layer mixes forward and backward lookups.

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=4336
 2017-11-29 16:08:11 -08:00
David Corbett
9f259769a6 Categorize U+A8B4 as Consonant_Medial 2017-11-21 13:48:32 -08:00
Behdad Esfahbod
8d55340593 Fix fallback positioning of double diacritic marks 
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=787284
 2017-11-20 19:43:22 -08:00
David Corbett
87d74605f5 Categorize U+0C80 as Consonant_Placeholder 2017-11-20 13:10:28 -08:00
ebraminio
7c6937e7c7
Move all references of old url to the new address (#622) 2017-11-20 14:49:22 -05:00
Behdad Esfahbod
baf7779d2d Limit how much recursion GSUB/GPOS does 
This only counts recursions right now.  Good start.

Hopefully...
Fixes https://github.com/behdad/harfbuzz/issues/429
 2017-11-14 21:55:37 -08:00
Behdad Esfahbod
173dab6300 Minor move 2017-11-14 21:27:24 -08:00
Behdad Esfahbod
c6173a392c Add Offset16 and Offset32 2017-11-14 21:09:03 -08:00
Behdad Esfahbod
6f335ed1e5 Replace USHORT/SHORT/ULONG/etc with UINT16/INT16/UINT32/etc 2017-11-14 21:06:07 -08:00
Behdad Esfahbod
a130ee6df5 Remove a couple of unused consts 2017-11-14 20:30:03 -08:00