a0bde1e1ea
[open-type] Remove (Sorted)ArrayOf.sub_array()
2022-11-16 21:27:12 -07:00
83769b9cb1
[subset] add comment for why we retain empty lookups.
2022-10-21 18:29:23 -06:00
70e2de2bd4
[subset] Always output Lookup's even if they are empty.
...
The rest of layout subsetting depends on lookup indices being consistent with those computed during planning. So if an empty lookup is discarded during the subset phase it will invalidate all subsequent lookup indices. Generally we shouldn't end up with an empty lookup as we pre-prune them during the planning phase, but it can happen in rare cases such as when a subtable is considered degenerate (eg. #3853 )
2022-10-21 18:29:23 -06:00
c813f84235
Make build work for arm-none-eabi
2022-10-21 11:09:35 -06:00
b706c6f77e
[instance] update FeatureList with variations
2022-09-29 12:14:43 -06:00
8f3a7017c3
[instance] support FeatureVariations table
2022-09-29 12:14:43 -06:00
f4813e3b7f
[instance] update collect_lookups/prune_features()/closure_features() with variations
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Some features will be substituted with variations, so we do not collect
lookups from the original feature tables.
2022-09-29 12:14:43 -06:00
64e2f2fc58
[instance] store active featurevariation record/condition idxes in the plan
2022-09-29 12:14:43 -06:00
9ab6605f20
[instance] update GDEF table
2022-09-01 09:35:22 -07:00
b72995ff16
[instance] GDEF table: collect both varidxes and deltas
2022-09-01 09:33:02 -07:00
e03043bd0b
[subset] don't let VariationStore subset() produce inner_maps
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Make it a subset-planning object so VariationStore can subset to
specified inner_maps.
Also add a layout_variation_idx_delta_map in subset_plan
2022-09-01 09:32:41 -07:00
7fde6ab025
fuzzer fix: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=49790
2022-08-05 15:10:31 -06:00
c67c1b745b
VarStore: simplify again
2022-08-04 11:42:22 -06:00
d831e935df
bug fix in VarData get_delta ()
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when LONG_WORDS flag is set, item row is not computed correctly
lcursor should be interpreted as INT32
2022-08-04 11:40:42 -06:00
3da50c50aa
Remove unused const
2022-07-29 11:57:15 -06:00
3f7a74ff40
[repacker] WIP extension promotion implementation.
2022-07-26 12:22:17 -06:00
4cb83967aa
[subset/ClassDefFormat2] Fix timeout
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Fixes https://oss-fuzz.com/testcase-detail/5417800474165248
2022-07-23 11:00:20 -06:00
f94a3ba1db
[varStore] Better protect against HB_NO_VAR builds
2022-07-23 10:36:08 -06:00
5a9c7930ef
Add HB_NO_BEYOND_64K
2022-07-22 21:33:31 -06:00
7cdde6a241
[ClassDef] Write a loop as range for
2022-07-21 17:18:45 -06:00
00dfbbce1c
[Coverage] Rename and templatize intersected_coverage_glyphs
2022-07-21 11:45:05 -06:00
8d923363db
[layout] Reduce number of closure rounds
2022-07-20 12:09:00 -06:00
f3151b6582
[ArrayOf family] Use memory barrier before accessing array
...
Without it, the compiler was reordering and batching the read
of array length and array[0] if the 0'th member was accessed
constantly and function was inlined. This felt safe to the
compiler because HB_VAR_ARRAY is 1, but could be unsafe actually.
The memory barrier disallows that.
This was found by afl/honggfuzz address sanitizers.
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=49187
2022-07-17 16:22:29 -06:00
1327d8e3df
[layout-common] Reshuffle code so Feature is defined before it's used
2022-07-15 16:03:38 -06:00
c1e280ea78
[reorg] Move Coverage, RangeRecord into new namespace layout.
2022-07-13 20:25:13 -06:00
df7eebf40a
[>64k:layout] Fix layout of RangeRecord
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https://github.com/be-fonts/boring-expansion-spec/issues/30
2022-07-12 13:42:52 -06:00
9ef9fc0114
[>64k:layout] Templatize GSUBGPOSFormat1
2022-07-12 13:42:52 -06:00
5fd0a3f0b9
[>64k:layout] Templatize GSUBGPOSFormat1
2022-07-12 13:42:52 -06:00
ca5c8a6419
[>64k:layout:Coverage] Implement format 3/4
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Implements rest of https://github.com/be-fonts/boring-expansion-spec/issues/30
2022-07-12 13:42:52 -06:00
25de6fb4e7
[>64k:layout:ClassDef] Implement format 3/4
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This implements part of https://github.com/be-fonts/boring-expansion-spec/issues/30
2022-07-12 13:42:52 -06:00
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
Behdad Esfahbod
Garret Rieger
Joel Auterson
Qunxin Liu