553ffaf682
[subset] fix for fuzzer testcase: https://oss-fuzz.com/testcase-detail/6382598554255360
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avoid writing to null pointer
2021-04-08 09:54:48 -06:00
6f98a8ed46
[subset] Anchor should only use format 1 when hints are dropped.
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Refactor Anchor to have a subset method instead of copy. This also allows
use to use serialize_subset in several places which simplifies calculating
offset bases.
2021-04-06 11:50:44 -06:00
5639e253f9
Add Array16Of<>
2021-03-31 16:04:43 -06:00
5efe360986
Rename (Unsized)OffsetListOf
2021-03-31 15:33:22 -06:00
6c4e0491d7
s/OffsetArrayOf/Array16OfOffset16To/g
2021-03-31 15:31:32 -06:00
ad28f973f3
Rename offset types to be explicit about their size
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Add Offset16To<>, Offset24To<>, and Offset32To<> for most use-cases.
2021-03-31 13:00:07 -06:00
b14475d2ae
[subset] further changes to serializer error handling.
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- Rename enum type and enum members.
- in_errors() now returns true for any error having been set. hb-subset now looks for offset overflow only errors to divert to repacker.
- Added INT_OVERFLOW and ARRAY_OVERFLOW enum values.
2021-03-18 10:51:26 -07:00
73ed59f7a6
[subset] store errors in the serializer as a flag set.
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Make check_assign/check_equal specify the type of error to set.
2021-03-17 15:58:34 -07:00
56ca435787
[subset] fix for collect_features and remove_redundant_lamngsys
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previously remove_redundant_sys () is missing in harfbuzz, after
redundant langsys removal, some features are removed as well in
prune_features() in fonttools. This change is trying to get the same
result between harfbuzz and fonttools.
2021-03-17 14:24:04 -07:00
2df39bcae7
[subset] don't allocate a set to use as a glyph filter for PairPosFormat2.
2021-03-16 14:49:35 -07:00
bb54e1047d
[subset] Also filter class1 by coverage when collecting variation indices for PairPosFormat2.
2021-03-16 14:49:35 -07:00
190b7a98f8
[subset] Update PairPosFormat2 subsetting to match fontTools updated subsetting ( https://github.com/fonttools/fonttools/pull/2221 )
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- subset class def 1 against the coverage table.
- Don't re-use class 0 in class def 2.
- Ignore class 0 glyphs for the purposes of determing format 1 vs format 2 encoding for ClassDef.
Add an additional test case which demonstrates these issues.
2021-03-16 14:49:35 -07:00
103ed7da83
[subset] Use dagger
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Better fix for https://github.com/harfbuzz/harfbuzz/pull/2858
2021-02-19 16:48:30 -07:00
5ca353a2d0
[subset] fix heap buffer overflow found by fuzzer.
2021-02-16 12:43:02 -07:00
c7d232ce4e
Merge pull request #2701 from googlefonts/Mark-To-Ligature_grieger
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[subset] GPOS 5 MarkToLigature subsetting support
2021-02-10 18:13:38 -07:00
1d9801e012
[subset] In AnchorMatrix::subset eliminate the use of dynamically allocated vector.
2020-10-05 14:43:29 -07:00
093909b2ff
[subset] Fix wrong offset base for subsetting LigatureArray.
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Offsets from LigatureArray must be relative to the beginning of the LigatureArray table. For the serialization mechanism to use the correct beginning point the LigatureArray must be created using the push()/pop() mechanism. So convert LigatureArray subsetting to use serialize_subset() instead of a manually called serialize and subset.
2020-10-05 13:14:53 -07:00
147e93b910
[subset] Fixes to get GPOS 5 subsetting code compiling.
2020-10-01 16:45:57 -07:00
3a0b05faf1
[subset] GPOS 5 MarkToLigature subsetting support
2020-10-01 15:59:16 -07:00
e583505334
[subset] Use plan->glyphset_gsub instead of plan->glyphset for GSUB/GPOS
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This matches fontTools behaviour. glyphset_gsub does not contain gids added from closing over composite glyphs in glyf, since these cannot particpate in GSUB/GPOS processing.
2020-09-29 11:16:15 -07:00
fce64a407d
Minor
2020-08-08 14:05:03 -06:00
5a7cc7fd8b
minor spacing tweak
2020-07-29 08:33:38 +04:30
d0e2addd43
minor
2020-07-18 22:16:02 +04:30
9ef9ac3749
[gpos] Break cycle-of-2 when cursive attaching
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Fix thinko this time around.
Fixes https://github.com/harfbuzz/harfbuzz/issues/2469
2020-06-17 22:59:10 -07:00
3fe7195713
Revert "[gpos] Break cycle-of-2 when cursive attaching"
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This reverts commit 7090707de6
2020-06-17 17:51:08 -07:00
7090707de6
[gpos] Break cycle-of-2 when cursive attaching
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Fixes https://github.com/harfbuzz/harfbuzz/issues/2469
2020-06-17 17:41:48 -07:00
973c47f6c9
[subset] Move 2 experimental public api methods to be private methods in GSUB/GPOS.
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2 methods are: hb_ot_layout_closure_lookups and hb_ot_layout_closure_features
2020-06-12 01:20:30 +04:30
56719474c2
s/blacklist/blocklist/g
2020-06-05 12:57:23 -07:00
d7c012a08e
[subset] GDEF Variation Store: step 2
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do subset based on variation indices collected in step 1
2020-05-21 12:43:24 -07:00
8200e48ffc
[subset] GDEF Variation Store: step 1
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closure device variation indexes, create old->new variation idx mapping
and store them in subset-plan
2020-05-21 12:43:24 -07:00
5cf53c06e6
Rename add_coverage to collect_coverage
2020-04-24 08:16:03 -07:00
2dda6dd744
minor, tweak spacing
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turn 8 spaces to tab, add space before Null/Crap
2020-04-20 16:18:29 +04:30
c8cc1e378d
fix issues in ClassDefFormat1 serialize:
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glyph ids in Iterator may be non-consecutive,
so the number in classValue might be larger than length of the Iterator
2020-04-03 12:31:48 -07:00
2f556c38c0
[subset] Fix crash when serializer runs out of room during gpos subsetting.
2020-03-14 00:55:47 +03:30
07acd1a042
[subset] Rename src_base args to base to match sanitize methods
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So it will become easier to follow that serialize methods signatures should
match with their sanitize methods counterparts.
2020-03-08 23:39:26 +03:30
188a0a47c2
removed default base; replaced w/ bias if required
2020-03-08 22:59:43 +03:30
eb7849a806
[subset] GPOS6 MarkToMark subsetting support
2020-02-06 10:46:05 -08:00
82afc75835
[subset] GPOS4 MarkBase subsetting support
2020-02-06 10:46:05 -08:00
1ab3924b31
refix PR #2087 subset PairPos1
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also added oss-fuzz 20211 data fixed by this
2020-01-23 10:50:52 -08:00
72cbfb9059
remove empty lookup subtables
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Added a variant of subset_offset_array which takes an extra arg passed to serialize_subset for this impl.
Added a new api test "test-subset-gpos" for this.
2020-01-21 16:53:19 -08:00
c828d7bf76
[subset] fixed GPOS device table sanitize & serialize ( #2087 )
2020-01-15 15:32:44 -08:00
e565d1f9bc
[subset] subset lookup/feature/script lists for GSUB/GPOS
2020-01-15 14:04:33 -08:00
0b39c48064
[subset] closure lookups for GSUB/GPOS
2020-01-10 13:11:06 -08:00
a061e47fcc
Change a few HB_INTERNAL static methods to static inline
2019-12-10 13:31:50 -06:00
dd3972a364
[GSUB] Simplify Extension is_reverse()
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We don't allow extension lookups to chain to another extension lookup.
Simplify code for that.
2019-12-10 13:28:39 -06:00
858b627984
[machinery] Remove CastR<>()
2019-12-10 13:18:32 -06:00
b84ceb2fcf
[machinery] Remove CastP
2019-12-10 13:02:48 -06:00
39afe608b4
[algs] Fold one more custom bsearch() in
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One more to go.
2019-12-10 12:13:40 -06:00
486754a888
[serialize] Extract iterable copy, copy_all
2019-10-31 13:31:11 -07:00
defe9b6da0
crash fix : Heap-buffer-overflow READ 2
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https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18513
2019-10-25 13:09:47 -07:00
Qunxin Liu
Garret Rieger
Behdad Esfahbod
Ebrahim Byagowi
ariza