Behdad Esfahbod
f9b643f6b2
[layout] s/hb_get_subtables_context_t/hb_accelerate_subtables_context_t/g
2022-06-04 09:27:31 -06:00
Behdad Esfahbod
a42c624fca
Convert one final use of hashmap to unique_ptr
2022-06-03 01:22:34 -06:00
Behdad Esfahbod
f13a79548f
[subset] Convert another use of hashmap to unique_ptr
2022-06-03 01:17:20 -06:00
Behdad Esfahbod
997d9cc466
[map] Make unique_ptr hashable
2022-06-02 18:47:42 -06:00
Behdad Esfahbod
bca710e8ad
[gsubgpos] Use map has() instead of get() when appropriate
2022-06-02 12:06:25 -06:00
Behdad Esfahbod
e9407a2bd2
Use shared_ptr<hb_set_t> in one place
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See if valgrind is happy...
2022-06-02 12:00:43 -06:00
Behdad Esfahbod
9a2a857043
[ot-shape] Don't verify buffer if shaping failed
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Fixes all of fuzzing verify failures, which were result of buffer failure
on super-long results, which fails unsafe-to-break because shorter strings
don't fail shaping.
2022-05-31 06:35:42 -06:00
Behdad Esfahbod
f4a8b70016
More member initialization
2022-05-30 05:30:37 -06:00
Behdad Esfahbod
97aa1ce6ba
[gsubgpos] Move some member initialization
2022-05-29 10:56:41 -06:00
Behdad Esfahbod
3eb7eff487
Remove varstore cache use if HB_NO_VAR
2022-05-21 15:25:53 -06:00
Behdad Esfahbod
880f50f7e4
Refactor varstore cache
2022-05-21 15:12:14 -06:00
Behdad Esfahbod
f2a2fb91a3
[GPOS] Cache VarStore region scalars
2022-05-21 15:12:14 -06:00
Behdad Esfahbod
202e6c4699
[subset] Remove unnecessary test
2022-05-18 17:12:43 -06:00
Behdad Esfahbod
4cfc2d668e
[subset] Use a std::move on set_t when feasible
2022-05-18 15:32:19 -06:00
Behdad Esfahbod
6695bf0560
[gsubgpos] Remove wrong condition in Context application
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Fixes https://github.com/harfbuzz/harfbuzz/issues/3545
2022-04-22 13:48:41 -06:00
Behdad Esfahbod
a85461b9b6
Add link to Context LookupFlag discussion
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https://github.com/harfbuzz/harfbuzz/discussions/3538
2022-04-20 12:13:40 -06:00
Behdad Esfahbod
044d7a06db
[indic-like] Add per-lookup per-syllable flag
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This allows mix-and-matching per-syllable and other lookups.
In fact, removes the clear-syllables call completely.
Fixes https://github.com/harfbuzz/harfbuzz/issues/3513
2022-03-28 17:39:54 -06:00
Behdad Esfahbod
e8f3397f4e
[matcher] Simplify syllable initialization
2022-03-28 13:23:37 -06:00
Behdad Esfahbod
ccd9161bfd
[apply-lookup] Try to fix the logic for contextual lookups
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Fixes https://github.com/harfbuzz/harfbuzz/issues/1611
Notably, this fixes Myles's AdditionFont:
https://litherum.blogspot.com/2019/03/addition-font.html
Test with AdditionFont, eg.:
$ util/hb-view AdditionFont.otf =1112112+1113134=
2022-03-25 15:14:40 -06:00
Behdad Esfahbod
bf2a845a17
[ot-layout] Comment
2022-03-24 13:09:53 -06:00
Garret Rieger
4e2f409bce
[subset] Don't hold references to members of the active_glyph_stack.
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These references may get invalidated after the vector for the stack is resized. Fixes: https://oss-fuzz.com/testcase-detail/5422577634377728
2022-01-31 22:58:53 +02:00
Garret Rieger
bc899650c7
[subset] Fix for issue #3397 .
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cur_intersected_glyphs gets modified during recursion leading to incorrect filtering of sub tables in some cases. So don't use cur_intersected_glyphs. Instead just add an additional entry onto the parent_active_glyphs () stack.
Additionaly expands NotoNastaliqUrdu tests to include coverage of the issue from #3397 .
2022-01-28 14:20:33 -08:00
Garret Rieger
f3c1f4f0da
[subset] convert active_glyphs_stack to be a vector of hb_set_t instead of hb_set_t*.
2022-01-28 14:20:33 -08:00
Behdad Esfahbod
60006d3687
[gsubgpos] Adjust chaining unsafe-to-concat application
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Fixes three tests.
2022-01-22 11:53:18 -07:00
Behdad Esfahbod
78481b32c0
[gsubgpos] Combine input/backtrack/lookahead unsafe-to-concat
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I feel like this is correct logic. Still have to prove.
Errors unchanged at 10.
2022-01-22 11:53:18 -07:00
Behdad Esfahbod
3122c2cdc4
[buffer] Add HB_GLYPH_FLAG_UNSAFE_TO_CONCAT
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Fixes https://github.com/harfbuzz/harfbuzz/issues/1463
2022-01-22 11:53:18 -07:00
Behdad Esfahbod
ac1bb3e39e
[machinery] Move accelerators to constructor/destructor
2022-01-20 12:10:05 -07:00
Behdad Esfahbod
e062376ef1
[machinery] Make accelerator lazy-loader call Xinit/Xfini
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Instead of init/fini. To isolate those functions. To be turned into
constructor/destructors, ideally one per commit (after some SFINAE
foo.)
2022-01-19 17:09:34 -07:00
Behdad Esfahbod
c8195dbc01
Merge pull request #3365 from harfbuzz/gdef-fix
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GDEF fix
2022-01-19 06:56:05 -08:00
Behdad Esfahbod
5a91db1135
[map] Remove constexpr invalid items
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These were non-workable in the general case, eg std::string.
2022-01-13 12:44:48 -07:00
Behdad Esfahbod
fa12f1ae25
Rename method
2022-01-12 15:08:34 -07:00
Behdad Esfahbod
9408e0d6d1
Rename variable
2022-01-12 15:07:34 -07:00
Behdad Esfahbod
96c969c820
Preserve glyph props
2022-01-12 15:06:40 -07:00
Garret Rieger
77507a1d8d
[subset] Don't double count visit lookups in closure_lookups
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Each recursed lookup was getting counted once in closure_lookups() and then again in hb_closure_lookups_context_t::recurse.
2021-12-10 15:13:49 -07:00
Garret Rieger
d67025705f
[subset] reset the visited lookup count before each closure iteration.
2021-12-10 15:13:49 -07:00
Qunxin Liu
706014f69d
[subset] (Chain)ContextSubst glyph_closure fix
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- When pos_glyphs is empty, use current full glyphs set as input for
subsequent recursive closure process
- Also increase max_lookup_visit_count to 35000 cause a real font file hit
previous limit 20000 and some lookups are dropped unexpectedly
2021-12-10 11:08:36 -07:00
Behdad Esfahbod
98fefd5ded
Merge pull request #3301 from harfbuzz/hashmap-classes
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Hashmap classes
2021-11-19 13:34:53 -07:00
Qunxin Liu
ca418cac74
[subset] keep features that have FeatureParams and the tag is "size"
2021-11-19 13:31:25 -07:00
Qunxin Liu
e88fc41ef3
[subset] inputSequence could be empty, change the sanity check
2021-11-19 12:57:43 -07:00
Behdad Esfahbod
394f772937
[map] Allow storing classes in the hashmap
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Fixes https://github.com/harfbuzz/harfbuzz/issues/3293
The trick was to change the type of the invalid key/value to be non-class.
2021-11-19 11:49:23 -07:00
Garret Rieger
f51b48c8e7
[subset] Fix fuzzer found memory leak.
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Happens because an insert into a map with an invalid key reports successful, but this causes the set being inserted to be lost.
2021-11-02 17:00:07 -07:00
Qunxin Liu
540f19b6fe
[subset] fix bug in (Chain)ContextFormat2
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Only keep rulesets for glyphs class numbers that survived in coverage
2021-11-02 16:05:55 -07:00
Qunxin Liu
364b6b3989
[subset] Don't assume FeatureList is sorted
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Though the spec said FeatureRecords are sorted alphabetically by feature
tag, there're font files with unsorted FeatureList. And harfbuzz is not
able to subset these files correctly because we use binary search in
finding featureRecords when collecting lookups. Also
find_duplicate_features needs to be updated to handle this.
2021-11-02 15:15:02 -07:00
Behdad Esfahbod
6d555ce82e
[meta] Use std::forward instead of hb_forward()
2021-11-02 00:18:22 -06:00
Qunxin Liu
36ed56b6e8
[subset] code cleanup
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- rename copy() method if it takes extra parameter
- get rid of same code blocks
2021-10-09 13:37:20 -06:00
Garret Rieger
c2cc566c9d
[subset] Fix subset_offset_array adding unused space to serializer.
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ArrayOf.serialize_append allocates space for the new item, but ArrayOf.pop() does not recover the allocated space. So in the case where the revert path was entered the extra space added by serialize_append gets left in the serialization buffer. This moves the snapshot to before ArrayOf.serialize_append is called so that revert cleans up the buffer extend.
2021-09-22 16:07:18 -06:00
Qunxin Liu
8c5c81746d
[subset] fix find_duplicate_features
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We should check each feature against all other features with the same
tag for duplicates.
2021-09-22 15:35:38 -06:00
Qunxin Liu
37379f8f7d
[subset] fox for (Chain)ContextFormat3: subset lookupRecord
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skip copying a lookupRecord if lookup referenced in the lookupRecord is
not retained after subset
2021-09-08 13:55:21 -06:00
Behdad Esfahbod
fad452bffb
[set] Move main functionality into hb_bit_set_t
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To add inversion on top in hb_invertible_set_t and use that as hb_set_t.
2021-08-17 10:47:18 -06:00
Behdad Esfahbod
30579f5a37
[set] Document & use open-ended del_range()
2021-07-29 11:19:13 -06:00