Qunxin Liu
74b46b29e7
[subset] MATH: don't serialize coverage table when iterator is empty
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when iterator is empty, just set coverage offset to 0.
serialize() in coverage will at lease write out a 16-bit format header.
2021-12-03 08:00:33 -07:00
Qunxin Liu
903a6baece
[subset] layout_features filtering fix
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we should not use get_size (), which returns length * item_size
2021-11-25 11:24:41 -07:00
Qunxin Liu
84dc4e85e8
[subset] avoid writing out duplicate extra glyph names in post table
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Add check for possible duplicate with other name index
2021-11-19 17:22:35 -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
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
60e203644b
[subset] use glyphset_gsub instead of glyphset for GDEF
2021-11-02 16:56:52 -06:00
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
4262636926
Merge pull request #3248 from googlefonts/connected_components
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[repacker] Keep connected subgraphs in the same space.
2021-10-23 13:18:22 -07:00
Qunxin Liu
8c583db9b5
[subset] COLRv1: update subset() method for new strutc ClipList and VarIdxMap
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Also fix issues in struct PaintTransform definition
2021-10-23 11:22:39 -07:00
Garret Rieger
79937d24b7
[repacker] Add repacker test that requires space splitting.
2021-10-05 12:53:21 -07:00
Garret Rieger
d5beb96e06
[repacker] add repacker isolation test on real font.
2021-09-22 18:18:50 -06:00
Qunxin Liu
ca7b9daef0
[subset] subset MATH table
2021-09-22 18:08:30 -04:00
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
Qunxin Liu
34e0b28fae
[subset] make glyph-names option match fonttools behavior
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Don't encode psNames that are contained in standard glyph names set
2021-08-20 01:30:23 -06:00
Garret Rieger
e39c3bde7b
[subset] fix bug in parsing glyf flags.
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the bytes of the flag stream were being treated as signed integers instead of unsigned as specified in the spec.
2021-08-10 12:57:07 -06:00
Garret Rieger
deee24fbef
[subset] Add missing FontName op code in top dict parsing.
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Fix for #3058
2021-07-14 16:01:18 -06:00
Garret Rieger
d2397d91f3
[subset] Add additional colrv1 subsetting tests that has a glyph with components.
2021-06-18 22:34:00 -07:00
Qunxin Liu
f739e1dc6a
[subset] subset both CPAL and COLRv1
2021-05-26 15:39:42 -06:00
Garret Rieger
a08900b721
[subset] fix failing colrv0 subsetting when font has composite glyphs.
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Composite glyph collection was happening along side colrv0 glyph collection which meant it was possible to miss grabbing the component glyphs for a glyph added by colrv0.
2021-05-10 15:33:54 -06:00
Garret Rieger
c35d786397
[subset] never drop the 'pref' feature.
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Never ever drop feature 'pref', even if it's empty. Harfbuzz uses it to choose the shaper for Khmer.
2021-04-01 16:27:35 -06:00
Garret Rieger
85b0728783
Add full variable font subsetting test.
2021-04-01 15:26:02 -06:00
Qunxin Liu
95230e291d
[subset] support subsetting GSUB8
2021-03-29 15:54:11 -06:00
Garret Rieger
b8b8c58b9f
[subset] add tests that check for successful repacking of a real font file.
2021-03-17 15:53:58 -07:00
Qunxin Liu
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
Qunxin Liu
0e1c0fa404
[subset] optimize glyph closure method: step 5
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add testcase and some fixes
2021-03-17 15:22:07 -06:00
Garret Rieger
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
Garret Rieger
08a4997fde
[subset] Add subset support for Extension lookups (GPOS 9, GSUB 7).
2021-02-11 13:41:31 -07:00
Behdad Esfahbod
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
Qunxin Liu
3a0b05faf1
[subset] GPOS 5 MarkToLigature subsetting support
2020-10-01 15:59:16 -07:00
Garret Rieger
3271a7cdaa
[subset] Remove redundant langys from Amiri test font.
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FontTools removes these when subsetting but harfbuzz does not yet support redundant langsys removal. So this gets the Amiri tests passing for now.
2020-09-28 16:46:15 -07:00
Garret Rieger
7b77ce0507
[subset] Add subsetting integration test using Amiri.
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Demonstrates a failure in subsetting GPOS 8/GSUB 6.
2020-09-24 16:35:59 -07:00
Qunxin Liu
3c5bdd9bb8
[subset] GDEF AttachList subsetting support
2020-05-28 16:22:13 -07:00
Qunxin Liu
593e58c842
[subset] ChainContext subsetting fix: add lookup index remapping
2020-05-27 16:58:15 -07:00
Qunxin Liu
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
Qunxin Liu
8b5d3ebd96
[subset] GSUB5/GPOS7 Contextual Subst/Pos Subtbale Subsetting support
2020-05-20 15:12:54 -07:00
Garret Rieger
411225426f
Fix glyph closure for alternate substitution.
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It was not filtering on the glyphs to be retained.
2020-02-21 13:01:23 +03:30
Qunxin Liu
eb7849a806
[subset] GPOS6 MarkToMark subsetting support
2020-02-06 10:46:05 -08:00
Qunxin Liu
82afc75835
[subset] GPOS4 MarkBase subsetting support
2020-02-06 10:46:05 -08:00
Ebrahim Byagowi
43253e404d
Merge remote-tracking branch 'upstream/master'
2020-02-05 17:45:19 +03:30
Ebrahim Byagowi
a7f694d4b0
Merge branch 'subset_cblc' into master
2020-02-05 16:31:21 +03:30
ckitagawa-work
774725b43a
[subset] Avoid incorrectly dropping cmap for NotoColorEmoji.ttf
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NotoColorEmoji.ttf uses two cmap subtables
Format 14 | Platform ID 0 | Platform Encoding ID 5
Format 12 | Platform ID 3 | Platform Encoding ID 10
This combination results in the cmap table being dropped during subsetting despite being valid/required.
2020-02-05 16:13:10 +03:30
Qunxin Liu
490ef1cc23
[subset] Fix namerecord ordering
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This will fix inconsistency with fontTools.
Also according to the spec, namerecords must be sorted
first by platform ID, then by platform-specific ID,
then by language ID, and then by name ID.
2020-02-01 23:07:47 +03:30
ckitagawa
e128f80278
parent 777ba47b50
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author ckitagawa <ckitagawa@chromium.org> 1579631743 -0500
committer ckitagawa <ckitagawa@chromium.org> 1580506176 -0500
[subset] Add CBLC support
2020-01-31 16:37:30 -05:00
Qunxin Liu
b6a8f5e63c
[subset] CMAP table subsetting fix
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Not all codepoints smaller than 0xFFFF go to cmap4 table.
Only subset codepoints existing in each table.
This will also make harfbuzz consistent with fontTools' behavior
2020-01-31 10:49:44 -08:00
ckitagawa
ed857c4680
[subset] Add COLR support
2020-01-28 15:35:53 -05:00
ckitagawa
93376a6436
Add unittests
2020-01-15 13:36:01 -08:00
ckitagawa
43b6c865ae
[subset] Support sbix subsetting
2020-01-15 13:36:01 -08:00
blueshade7
ea8fdfa079
Merge branch 'master' into var-subset
2019-11-22 15:59:09 -08:00