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4556 Commits

Author SHA1 Message Date
Behdad Esfahbod 805f76fc00 [indic] Remove redundant Chakma decomposition rule 
This was not used BTW since Chakma doesn't go through Indic shaper
anymore.

See:
https://github.com/behdad/harfbuzz/issues/381
https://github.com/behdad/harfbuzz/issues/382
 2016-12-26 14:12:39 -05:00
Behdad Esfahbod 3cc48a46b5 [indix] Comment 2016-12-26 13:16:56 -05:00
nvelinov 7d1c5d8281 Compilation Error for ASSERT_STATIC on Some Compilers (#380) 
* this pointer in type definitions is not interpreted as a constant.
This rule is not enforced strictly by all compilers, but the Green Hills Software compiler will regard this as an error.

* Merging branches for the DEFINE_SIZE_UNION macro
Adding check for the existence of static_size field in the tested member.
 2016-12-23 19:46:37 -06:00
Behdad Esfahbod e2b878055b Disable OTL processing for Hebrew if GPOS doesn't have Hebrew subtable 
New approach to fix this:
69f9fbc420

Previous approach was reverted as it was too broad.  See context:
https://github.com/behdad/harfbuzz/issues/347#issuecomment-267838368

With U+05E9,U+05B8,U+05C1,U+05DC and Arial Unicode, we now (correctly) disable
GDEF and GPOS, so we get results very close to Uniscribe, but slightly different
since our fallback position logic is not exactly the same:

Before:		[gid1166=3+991|gid1142=0+737|gid5798=0+1434]
After:		[gid1166=3+991|gid1142=0@402,-26+0|gid5798=0+1434]
Uniscribe:	[gid1166=3+991|gid1142=0@348,0+0|gid5798=0+1434]
 2016-12-22 14:43:23 -06:00
Behdad Esfahbod 1a0f4aa6df Revert "Synthesize GDEF glyph class for any glyph that does not have one in GDEF" 
This reverts commit 69f9fbc420.

See https://github.com/behdad/harfbuzz/issues/347#issuecomment-268873401
Fixes https://github.com/behdad/harfbuzz/issues/347
 2016-12-22 14:43:14 -06:00
Behdad Esfahbod 4b4a1b9f23 Fix assert fail with contextual matching 
As discovered by libFuzzer / Chromium fuzzing.

Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=659496
CC https://github.com/behdad/harfbuzz/issues/139
 2016-12-21 23:14:16 -06:00
Behdad Esfahbod df98ce5fc8 Improve debug output with really deep nesting 2016-12-21 19:27:30 -06:00
Behdad Esfahbod eab418c5e6 Avoid infinite loop in CoverageFormat2 iteration with bad fonts 
Fixes https://github.com/behdad/harfbuzz/issues/363
 2016-12-21 15:51:28 -06:00
Behdad Esfahbod a0688e8e7b Ouch, finish previous change 2016-12-20 20:52:50 -06:00
Behdad Esfahbod de14c19d14 [fuzzer] Separate main() into a new file 2016-12-20 20:50:38 -06:00
Behdad Esfahbod 7ed71eb347 Protect collect_glyphs() and closure() against malicious DDOS fonts 
Fixes https://github.com/behdad/harfbuzz/issues/363
 2016-12-20 15:01:16 -06:00
Mike Hommey 1c98ff87c7 Support building with older glib versions 
It is desirable to be able to build against older versions of glib.

fd7a245 changed the configure check to require glib > 2.38 for
G_TEST_DIST. Before that, version 2.16 was required, but in fact,
since aafe395, G_PASTE is being used, which was introduced in 2.19.1.
And since 0ef179e2, hb-glib uses GBytes, which were introduced in
2.31.10.

2.19.1 is rather old, but 2.38 is rather new. For Firefox, building
against 2.22 is still supported, although we could probably get away
with bumping that to 2.28. Either way, GBytes is not available.

Arguably, if you build against a glib that doesn't support GBytes,
you're not going to use the hb_glib_blob_create function, so we hide
the function when building against such a glib.

As for G_TEST_DIST, when building against versions of glib that don't
support it, we can fallback to the previous behavior, which, AIUI, was
just making the test not work when building in a separate directory.
 2016-12-18 01:37:07 -06:00
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
ebraminio 1e1825bf47 [dwrite] Provide an experimental API for justification (#279) 2016-12-17 10:30:40 +03:30
elmarb 4cd0cd6791 NMake ICU option builds with builtin ICU (#375) 2016-12-16 19:06:26 -06:00
Khaled Hosny 75fa884f92 [win32] Fix wrong description of the ICU option (#372) 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 219cb29c5d Fix build after rebasing opentype-gx branch on top of MATH table 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 0aedfd59be [GX] Apply 'rvrn' feature before any other feature 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 42c8142531 [GX] Fix build with older FreeType 2016-12-16 19:06:26 -06:00
Sascha Brawer 72873cf522 Call hb_font_set_var_coords_normalized() from FT_Face coords 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 4ebbeb7c50 [GX] Make FeatureVariations actually work 
Yay!!!!
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 72ada4f0c6 [GX] Hook up feature variations 
Shape-plan caching is not implemented.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod ec87ba9ba3 [GX] Add hb_ot_layout_feature_with_variations_get_lookups() 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 30c42b644e [GX] Add hb_ot_layout_table_find_feature_variations() 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 7ceadbe981 Shuffle code around 2016-12-16 19:06:26 -06:00
Behdad Esfahbod bde5e3959c Move add_lookups from map to map-builder 
In prep for more changes.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 26648cebcd [GX] Remove (partial) support for anisotropic variations 
It doesn't always work, not part of FreeType, and we were not going
to expose it in the API anyway.  Can always be added later.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod c22176d4ba [GX] Handle setting var coords to NULL 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 59055b5494 [GX] Implement Feature Variations 
Not hooked up to shaper yet.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 85ec494434 [GX] Fix another x/y thinko 
Thanks Werner!
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod cf3de4d8f7 [GX] Rename VarStore to VariationStore 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 1f6ed356e0 [GX] Fix build with some compilers 
Eg. https://ci.appveyor.com/project/behdad/harfbuzz/build/1.0.48/job/o9mnd33kcdeeg30r

hb-open-type-private.hh:103:29: error: static data member 'OT::Device::<anonymous union>::<anonymous struct>::static_size' in unnamed class [-fpermissive]
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 250bcd6fb6 [GX] Skip tail zero entries when setting variation coordinates 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 1124d2ece5 [GX] Fix thinko 2016-12-16 19:06:26 -06:00
Behdad Esfahbod ad69e8f07c [GX] Add new API hb_font_set_var_coords_normalized() 
Will probably change.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 151d93de8a [GX] Hook up GPOS to Variation Store stored in GDEF 
Untested.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod dcfd309533 [GX] Change GDEF API to return varStore 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 49cb87850c [GX] Pass apply-context down to get_anchor() 
Needed to access GDEF for varStore.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod f0c3fd8c9a [GX] Add varStore member to GDEF 
Still not hooked up from GPOS.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 5c971f8dbc Minor change to GDEF, in prep for new version 2016-12-16 19:06:26 -06:00
Behdad Esfahbod dc9f229799 [GX] Port variation stuff to Variation Store design 
Not hooked up to GDEF yet.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod a7edeb6f02 Make OffsetArrayOf take OffsetType template argument 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 8dddc231cf [GX] Revert "[GX] Add VariationAlternates, to allow conditional lookups in GSUB/GPOS" 
This reverts commit 2859f1c7174d6f7ae5dcf0db5411bc0182b21594.
We are going in a different direction.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod bb4d2e6ed5 [GX] Free GX coordinates 2016-12-16 19:06:26 -06:00
Behdad Esfahbod baa329c6a1 [GX] Add compact VariationDevice implementation 
Add compact format that uses signed bytes instead of shorts.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 71b06fd392 [GX] Add VariationAlternates, to allow conditional lookups in GSUB/GPOS 
Not hooked up to runtime yet.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 976eeb8e02 [GX] Minor 2016-12-16 19:06:26 -06:00
Behdad Esfahbod ed8a9067ca [GX] Minor 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 15c5ee6747 [GX] Minor rename 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 4c535a822f [GX] Hookup VariationDevice to Device table implementation 2016-12-16 19:06:26 -06:00