AuroraMiddleware/harfbuzz
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188 Commits

Author SHA1 Message Date
Behdad Esfahbod
e014405a21 Rename check_array(array, a, b) to check_range() 2018-11-12 14:23:31 -05:00
Behdad Esfahbod
1d66cdcf77 Better fix for MSVC 2008 
Follow up on b4c6113032

Fixes https://github.com/harfbuzz/harfbuzz/issues/1374
 2018-11-10 19:57:51 -05:00
Behdad Esfahbod
385f78b312 [aat] Remove deleted-glyhs after applying kerx/kern 
Finally:  Fixes https://github.com/harfbuzz/harfbuzz/issues/1356

Test case:
$ ./hb-shape GeezaPro.ttc -u U+0628,U+064A,U+064E,U+0651,U+0629
[u0629.final.tehMarbuta=4+713|u064e_u0651.shaddaFatha=1@0,-200+0|u064a.medial.yeh=1+656|u0628.initial.beh=0+656]

The mark positioning (kern table CrossStream kerning) only works if deleted
glyph (as result of ligation) is still in stream and pushed through the
state machine.
 2018-11-07 17:20:47 -05:00
Behdad Esfahbod
6ee6cd93d8 [GPOS] Only mark unsafe-to-break if kerning happened 
Fixes https://github.com/harfbuzz/harfbuzz/issues/1365
 2018-11-07 15:40:55 -05:00
Behdad Esfahbod
501a364d9b [GPOS] Add TODO item 2018-11-07 15:02:16 -05:00
Behdad Esfahbod
33b006cc51 [ot-layout] Simplify some access 2018-11-05 23:19:04 -05:00
Behdad Esfahbod
ca5e5a4979 Port Coverage::Iter off hb_auto_t<> 2018-10-29 22:30:21 -07:00
Behdad Esfahbod
39bd07aed5 Fix bunch of unused parameter warnings 
Show up with gcc -O0.

There's a few more but those are functions that need to be filled in.

Maybe this is a lost battle...
 2018-10-26 21:22:26 -07:00
Behdad Esfahbod
21ede867df Fix possible overflow in bsearch impls 
From bungeman.

Fixes https://github.com/harfbuzz/harfbuzz/pull/1314
 2018-10-25 13:19:58 -07:00
Bruce Mitchener
8d1e479d1d Use bool literals instead of 0/1. 2018-10-19 18:05:46 +02:00
Behdad Esfahbod
36f38ea703 [gpos] Protect mark attachment against out-of-bounds 
Not sure how can happen, but does...
 2018-10-16 16:24:03 -07:00
Behdad Esfahbod
bf8469be9a Attach CursivePositioning backwards, not forward 
This is how Uniscribe does it.  So, adjust.  This is only relevant
to fonts that apply cursive positioning from a contextual lookup.

Fixes https://github.com/harfbuzz/harfbuzz/issues/1181
 2018-10-11 20:45:40 -04:00
Behdad Esfahbod
1622ba5943 [kerx] Implement Format4 'ankr'-based mark attachment 
Tested with Kannada MN:

$ HB_OPTIONS=aat ./hb-shape Kannada\ MN.ttc -u 0CCD,0C95,0CD6
[kn_ka.vattu=0+230|kn_ai_length_mark=1@326,0+607]
 2018-10-11 01:17:33 -04:00
Behdad Esfahbod
dff2c45f1e Port rest from VAR to UnsizedArrayOf<> 2018-09-11 01:01:08 +02:00
Behdad Esfahbod
9507b05a7a Simplify sanitize->check_array() 
Fix a bug in CBDT sanitize, and redundant check in avar.
 2018-09-10 23:18:23 +02:00
Behdad Esfahbod
339d3603b9 [subset] Wire up subset() call down to subtables 2018-09-03 17:40:16 -07:00
Behdad Esfahbod
7b2ef551da Templatize Lookup::sanitize() 2018-09-03 17:16:09 -07:00
Behdad Esfahbod
9c3747c5e5 [subset] More 2018-09-03 16:53:03 -07:00
Behdad Esfahbod
6d618522d6 Templatize GSUBGPOS::sanitize() 2018-09-03 16:41:28 -07:00
Behdad Esfahbod
7c9cfa2b40 Add intersects() method to GSUB/GPOS lookups 2018-09-02 19:47:50 -07:00
Behdad Esfahbod
3a0b3a29cc Free up hb-ot-face.hh from includes 
There might be a better way to do this, but I couldn't find...
 2018-08-26 15:11:24 -07:00
Behdad Esfahbod
3999094682 [OT] Use relaxed ops for recursing into GSUB/GPOS lookups again 2018-08-26 09:12:25 -07:00
Behdad Esfahbod
c44b0caf0d Fixup 2018-08-26 01:29:30 -07:00
Behdad Esfahbod
b929100f87 [ot-face] Unify GSUB/GPOS accelerators in the table accelerator framework 2018-08-26 01:15:47 -07:00
Behdad Esfahbod
963413fc54 WIP 2018-08-26 00:47:55 -07:00
Behdad Esfahbod
c77ae40852 Rename hb-*private.hh to hb-*.hh 
Sorry for the noise, downstream custom builders.  Please adjust.
 2018-08-25 22:36:36 -07:00
Behdad Esfahbod
1c6b369324 [ot] Rename hb_ot_layout_t to hb_ot_face_data_t 2018-08-23 11:30:21 -07:00
Behdad Esfahbod
0271c7ab3b [ot] Move GSUB/GPOS into tables_t 2018-08-03 16:45:57 -07:00
Behdad Esfahbod
bddeb2b10c Minor renamings of internal inline functions 2018-07-10 14:13:21 +02:00
Behdad Esfahbod
d3c0980ac2 Adjust MarkBasePos heuristic in presence of MultipleSubst 
From the issue:
"In this font, the virama,ya first forms a ligature, then decomposes back to
virama,ya. This causes those two to be marked parts of a MultipleSubst
sequence. When attaching the matra, we look for the first of the MultipleSubst
sequence because that's where we attach to (because of eg #740). In this case,
the first glyph in the MultipleSubst sequence is a mark, so we skip it and
attach to the base char before it."

Font in question is Nirmala UI from Windows 10. Test sequence:

  U+0926,U+094D,U+092F,U+0941

Fixes https://github.com/harfbuzz/harfbuzz/issues/1020
 2018-06-30 15:59:25 +04:30
Ebrahim Byagowi
eaf649450a Resolve clang's conditional-uninitialize warnings 2018-04-23 11:38:45 -07:00
Ebrahim Byagowi
a02c3ee70f Add or update tables specifications links 2018-04-12 13:44:32 +04:30
Behdad Esfahbod
e347fb908b Minor 2018-02-26 01:08:50 -08:00
Behdad Esfahbod
1c50a88623 Readjust mark attachment heuristic a bit more 
Previously adjusted logic could fail if nothing around was ligated,
and something moved.  This should take care of that.

CC https://github.com/harfbuzz/harfbuzz/issues/740
 2018-02-18 15:58:09 -08:00
Behdad Esfahbod
978ace6fbb Improve _hb_popcount() 
Support 128bit type.
 2018-02-16 16:08:45 -08:00
Behdad Esfahbod
9b5af3ec7f [gpos] Adjust mark attachment heuristic 
Hopefully it...
fixes https://github.com/harfbuzz/harfbuzz/issues/740
 2018-02-10 21:50:44 -06:00
Behdad Esfahbod
fd03449094 Rename hb_apply_context_t to hb_ot_apply_context_t 2018-01-19 16:40:13 -08:00
Behdad Esfahbod
188ee6e5ee Calculate anchor positions in float, then round 
Hoping to reduce rounding error, to make tests happier...
No luck.
 2018-01-10 05:13:47 +01:00
Behdad Esfahbod
7cdd6ab068 Round, instead of floor, when applying variations 
Hoping this would fix remaining text-rendering-tests failures,
but so far no luck.
 2018-01-10 04:44:33 +01:00
Behdad Esfahbod
6b19178ee3 Prefix int types with HB 
Such a headache that Windows defines UINT8, ...; Just prefix it.
 2018-01-10 03:07:30 +01:00
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
6f335ed1e5 Replace USHORT/SHORT/ULONG/etc with UINT16/INT16/UINT32/etc 2017-11-14 21:06:07 -08:00
Behdad Esfahbod
5d98de1f38 Tweak mark-base attachment 
Apparently a base glyph can also become an attached component of a
ligature if the ligature-forming lookup used IgnoreBase.  This was
being confused with a non-first component of a MultipleSubst and
hence not matched for mark-attachment.  Tweak test to fix.

Fixes https://github.com/behdad/harfbuzz/issues/543
 2017-10-03 13:49:40 +02:00
Behdad Esfahbod
b65aa1cd47 [unsafe-to-break] Flag during mark attachment 2017-08-10 20:32:02 -07:00
Behdad Esfahbod
882ebdadd6 [unsafe-to-break] Flag during cursive positioning 2017-08-10 20:23:17 -07:00
Behdad Esfahbod
2d158ca376 [unsafe-to-break] Flag during kerning 2017-08-10 20:20:30 -07:00
Volker H. Simonis
ad273881c5 Minor fixes to pacify Coverity code scan 
Fixes https://github.com/behdad/harfbuzz/pull/377
 2016-12-18 00:14:06 -06:00