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0952bc0a
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2025-09-26T09:10:28
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[subset] de-duplicate features (#5494)
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54ab8f0d
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2025-09-15T18:20:59
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[repacker] make repacker object ids stable.
Prior to this change the object id for a vertex in the repacker graph is it's position in the topological ordering. As a result after each sorting the object ids change. This decouples the topological sorting from the object id assignments. A separate ordering list is retained. This simplifies handling around object ids which no longer needs to account for them shifting, and improves performance by eliminating the step of reassigned link object ids after each sort.
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cd49b14b
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2025-07-29T14:32:26
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[subset] add more aggressive pruning for MarkLigPos and MarkMarkPos (#5434)
Remove lig/mark glyphs without defined anchor points after subsetting
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879c4ac7
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2025-07-24T14:13:16
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[subset] MarkBasePos: remove base glyphs with empty base record
BaseRecord could become empty if all anchor offsets for retained mark
classes are null
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a5c9c826
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2024-05-06T13:22:49
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rename expected files from *.retain-all-codepoint.* to *.all.*
This is to fix file name too long error
tar: harfbuzz-8.4.0/test/subset/data/expected/sync_vmetrics/playwrite_mm.subset.default.retain-all-codepoint.SPED=25,YEXT=520,wght=100-400,slnt=18.iup_optimize.ttf: file name is too long (cannot be split); not dumped
tar: Exiting with failure status due to previous errors
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71456071
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2024-03-25T21:41:16
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[subset] place the gdef var store at the end of the GDEF table.
It appears that some font processors assume it is the last sub table.
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413af0a9
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2023-11-02T11:14:48
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[instancer] When partial instancing, subset LigCaretList after VarStore instantiation
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ce466989
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2023-10-18T15:49:57
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[subset] update tests
to reflect changes in GDEF.MarkGlyphSetsDef and Lookup.MarkFilteringSet
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64e8707e
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2022-11-24T18:24:50
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[subset] don't use hb repacker when generating test files from fonttools.
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bc899650
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2022-01-28T13:54:10
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[subset] Fix for issue #3397.
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.
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706014f6
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2021-12-01T20:20:12
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[subset] (Chain)ContextSubst glyph_closure fix
- 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
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9121ed0c
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2021-11-30T13:45:22
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[subset] Improve sharing of Ligature subtables.
Ligature subtables use virtual links to enforce an ordering constraint between the subtables and the coverage table. Unfortunately this has the sideeffect of prevent the subtables from being shared by another Ligature with a different coverage table since object equality compares all links real and virtual. This change makes virtual links stored separately from real links and updates the equality check to only check real links. If an object is de-duped any virtual links it has are merged into the object that replaces it.
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49c93924
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2021-09-24T09:28:10
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[subset] During LigatureSubstFormat1 subsetting always place Coverage last.
In Windows 7 on Chrome if the coverage table comes before any of the LigatureSet or Ligature subtables the font won't load. This changes the packing order to always place the Coverage table last. Virtual links are used to ensure the repacker maintains the desired ordering.
Coincidentally fontTools also does the same thing (https://github.com/fonttools/fonttools/blob/a3f988fbf621142d7d9b3e68a69725b88f358869/Lib/fontTools/ttLib/tables/otTables.py#L1137) to reduce overflows during packing.
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c2cc566c
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2021-09-22T14:15:55
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[subset] Fix subset_offset_array adding unused space to serializer.
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.
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c2ee1fdd
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2021-08-04T16:42:49
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[subset] remove unsed table_entry struct.
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dea0fe57
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2021-08-04T16:36:20
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[subset] discard extra copies of a table in face builder.
Fixes #2361. Stores tables in the builder in a hashmap so you end up with at most one copy of each table. Table serialization order is now based on tag sort order instead of order of insertion into the builder.
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7ccc52b0
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2021-08-04T03:57:18
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[test] Compare sha256 hash before TTX dumps
Most of time the files are identical, so instead of comparing the TTX
dump we can check sha256 hashes of the files first and if they match, we
don’t have to check the TTX dumps at all, making the subset tests orders
of magnitude faster.
time meson test --suite=subset down from:
real 0m19.418s
user 0m38.171s
sys 0m3.587s
to:
real 0m3.102s
user 0m8.622s
sys 0m1.701s
The expected files have been replaced by hb-subset output so they are
bit-identical where FontTools output might not.
The generate-expected-outputs.py now compares the hb-subset output with
fontttols subset and errors of they don’t match.
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770fbd5a
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2021-08-04T00:07:23
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Revert "[test] Speed-up subset tests by saving TTX dump"
This reverts commit 278f44dcee34cea25403e42e06668f0afe2328c1.
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278f44dc
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2021-07-29T23:43:56
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[test] Speed-up subset tests by saving TTX dump
Speed-up subset tests by saving TTX dump of expected output instead of
generating it each time the tests are run.
Cuts down meson test --suite=subset on my system from:
real 0m38.977s
user 1m12.024s
sys 0m10.547s
to:
real 0m22.291s
user 0m44.548s
sys 0m9.221s
Part of https://github.com/harfbuzz/harfbuzz/issues/3089
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d07f789a
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2021-06-09T15:36:40
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[subset] support option "--notdef-outline"
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b07b97d5
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2021-03-29T10:39:38
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[subset] Add more Noto Nastaliq test cases.
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6fddc2bb
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2021-04-01T15:34:17
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[subset] subset layout tables (G*) by default.
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b10741ca
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2021-03-25T19:14:48
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[subset] when closing glyphs in context lookups don't use a current glyph set if a lookup is already applied.
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2773d057
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2020-11-04T11:11:16
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[subset] Add a test case using NotoNastaliqUrdu.
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