9286526f37
[>64k:layout] Templatize Coverage & ClassDef
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Have not added new formats yet.
2022-07-12 13:42:52 -06:00
e8cce9d1b3
[>64k:layout] Add SmallTypes & MediumTypes
2022-07-12 13:42:52 -06:00
8a971d01e9
[layout] Use is_source_of instead of is_iterator
2022-07-08 12:01:48 -06:00
0dc0da054d
[iter] Add hb_is_sorted_iterator(_of)
2022-07-08 12:01:38 -06:00
587969af42
[subset] Drop scripts that are not in the layout_scripts list.
2022-06-30 21:37:42 +00:00
b96622d15c
[layout] Use a cache for main input ClassDef of (Chain)ContextLookupFormat2
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This commit adds a per-lookup caching infrastructure to GSUB/GPOS, and
uses it to cache input ClassDef.get_class value for (Chain)ContextLookupFormat2.
For fonts heavy on use of heave class-based2 context matching, this shows
a good speedup. For NotoNastaliqUrdu for example, I observe 17% speedup.
Unfortunately not many other lookups can use a cache like this :(.
https://github.com/harfbuzz/harfbuzz/pull/3636
2022-06-07 09:14:38 -06:00
e6409d3905
Revert "[layout] Use a cache for main input ClassDef of (Chain)ContextLookups"
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This reverts commit 57d1c08739
2022-06-05 06:57:37 -06:00
57d1c08739
[layout] Use a cache for main input ClassDef of (Chain)ContextLookups
2022-06-05 06:54:19 -06:00
f13a79548f
[subset] Convert another use of hashmap to unique_ptr
2022-06-03 01:17:20 -06:00
997d9cc466
[map] Make unique_ptr hashable
2022-06-02 18:47:42 -06:00
5af5a56593
[VarStore] Implement writing 32bit var-store
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Untested.
Finishes fixing https://github.com/harfbuzz/harfbuzz/issues/2965
2022-05-31 03:58:35 -06:00
75112098ac
[VarStore] Implement reading 32bit var-store
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Untested.
Part of https://github.com/harfbuzz/harfbuzz/issues/2965
Serializing is incomplete.
2022-05-31 03:58:29 -06:00
e5d6da7905
[varStore] rename shortCount to wordCount
2022-05-30 07:48:58 -06:00
371e14d99c
Combine uses of map has() then get() with has(.., &..)
2022-05-28 13:40:30 -06:00
6010feeeb5
[varStore] Rename variable as per review
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https://github.com/harfbuzz/harfbuzz/pull/3605
2022-05-24 09:01:02 -06:00
d9acc045f1
[VarStore] Sprinkle cache_t type around
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It's available so no need to use void*.
2022-05-21 15:12:14 -06:00
da38312e42
[VarStore] Pepper cache with likely()
2022-05-21 15:12:14 -06:00
cf8f00e354
[VarStore] Don't use NAN
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Is faster.
With this, I'm seeing 25 to 28% speedup in glyph_h_advances benchmark
of benchmark-font for var/hb tests.
2022-05-21 15:12:14 -06:00
880f50f7e4
Refactor varstore cache
2022-05-21 15:12:14 -06:00
f2a2fb91a3
[GPOS] Cache VarStore region scalars
2022-05-21 15:12:14 -06:00
5fbc70c59b
[VarStore] Add cache API
2022-05-21 15:12:14 -06:00
3ab2c7935f
[subset-perf] Signficiantly speed up ClassDef*::subset.
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Eliminates the usage of a glyph -> klass hash map and replaces it with a vector storing the mapping. This allows us to use the vector directly as the iterator driving the serialize. Approximately 1% speedup for Noto Nastaliq.
2022-05-19 12:37:28 -06:00
0b1c2ff96a
[subset-perf] Remove extra map lookup in ClassDef subset methods.
2022-05-18 18:25:36 -06:00
13ace77f1d
[subset-perf] Use glyph_map instead of set in ClassDefFormat.
2022-05-18 18:25:36 -06:00
adae2f2272
[subset-perf] Cache a glyph map for gsub.
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This allows us in some cases to avoid using glyph_set_gsub as a filter.
2022-05-18 18:25:36 -06:00
cedf739646
Add some commented-out code
2022-05-18 16:53:26 -06:00
48dfbd54a3
[subset] minor cleanup.
2022-05-18 15:24:54 -06:00
482c6e5dc4
[subset-perf] Speed up Coverage::serialize by caching iterator.
2022-05-18 15:24:54 -06:00
14b18725f0
In Coverage::iter_t, assume iterators are from same Coverage object
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No need to support otherwise.
2022-05-18 15:14:32 -06:00
27141735c3
[subset] Add Coverage::__end__ implementation
2022-05-18 15:12:49 -06:00
c476f58adb
[subset] Write CoverageFormat2::intersects_coverage() as bsearch()
2022-05-18 14:20:23 -06:00
63c6695108
[ot-layout] Cosmetic
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The implementation of HBUINT16 operator == is slower than just
comparing to ints.
2022-05-18 13:53:52 -06:00
777debd748
[subset] Rewrite CoverageFormat2::intersects as dagger
2022-05-18 13:46:06 -06:00
cf5001fac7
[subset] Optimize CoverageFormat2::intersected_coverage_glyphs
2022-05-18 13:38:29 -06:00
6f37c20798
[subset] Minor rewrite in CoverageFormat2::serialize()
2022-05-18 13:25:42 -06:00
175319cd89
[gsubgpos] Clean up OT::ClassDefFormat2::intersected_class_glyphs 0 case
2022-05-11 13:47:17 -06:00
137af3612b
[gsubgpos] Simplify OT::ClassDefFormat2::intersected_class_glyphs()
2022-05-11 13:39:30 -06:00
3261e05bdb
[subset] Optimize ClassDef1::intersected_class_glyphs() for class0
2022-05-11 13:16:31 -06:00
a792e16e48
[ot-layout] Change max nesting level of lookups from 6 to 64
2022-03-24 13:08:51 -06:00
7cb002cb58
[subset] bug fix in prune_langsys
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we should not cache visited langsys cause 2 different Record<Langsys>
could have different Tag while pointing to the same Langsys, a langsys
is redundant in Record<Langsys> A does not mean it's redundant in Record
B. Same thing for visited_script.
Also adding the number of features in the LangSys's feature list to the
visited langsys count so it's more accurate.
Plus some improvement in langsys compare()
2022-03-16 13:08:13 -06:00
de2cef42b4
[bimap] Remove init/fini
2022-01-18 09:21:31 -07:00
e2e305066a
Fix various typos
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Found via `codespell -q 3 -S ./perf/texts -L actualy,ba,beng,fo,gir,inout,nd,ot,pres,ro,te,teh,timne`
2022-01-16 05:39:03 -08:00
067f90a820
[subset] Fix for fuzzer timeout.
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Fixes https://oss-fuzz.com/testcase-detail/5549945449480192
In prune_langsys: move LangSys visited check up before any work is done for a LangSys. In this particular case the compare() method is responsible for the majority of the time spent and wasn't being guarded with a visisted check.
2021-12-14 17:34:21 -07:00
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
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
a75b96f7e5
[sanitize] In lookup sanitize don't try to access subtable 0 if it isn't there.
2021-11-16 15:00:50 -08:00
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
6d555ce82e
[meta] Use std::forward instead of hb_forward()
2021-11-02 00:18:22 -06:00
ca7b9daef0
[subset] subset MATH table
2021-09-22 18:08:30 -04:00
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
Behdad Esfahbod
Garret Rieger
Qunxin Liu
luz paz