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73 Commits

Author SHA1 Message Date
Garret Rieger 4ec18c85e6 [subset] add subsetting tests with drop hints and layout subsetting enabled. 2021-04-06 11:50:44 -06:00
Garret Rieger 596f4258d0 [subset] copy Lookup::markFilteringSet when subseting. 2021-04-02 15:33:52 -06:00
Garret Rieger c35d786397 [subset] never drop the 'pref' feature. 
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
Garret Rieger b10741ca7f [subset] when closing glyphs in context lookups don't use a current glyph set if a lookup is already applied. 2021-03-31 21:03:33 -06:00
Garret Rieger 2773d05740 [subset] Add a test case using NotoNastaliqUrdu. 2021-03-31 21:03:33 -06:00
Qunxin Liu 95230e291d [subset] support subsetting GSUB8 2021-03-29 15:54:11 -06:00
Qunxin Liu 0e1c0fa404 [subset] optimize glyph closure method: step 5 
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) 
- 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 
[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 010accb3d5 [subset] Add additional test cases for the Amiri tests. 2020-09-28 17:39:09 -07:00
Garret Rieger 7b77ce0507 [subset] Add subsetting integration test using Amiri. 
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 
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
Qunxin Liu b2a965df5e [subset] Add support for "--gids" option 
cmap subsetting now retains entries associated with any glyph ids explicitly requested
 2020-05-11 15:28:58 -07:00
Qunxin Liu e53c44e326 [subset] temporarily revert previous cmap commit 
Required in https://github.com/harfbuzz/harfbuzz/issues/2356
 2020-04-25 12:21:22 +04:30
Qunxin Liu c8cc1e378d fix issues in ClassDefFormat1 serialize: 
glyph ids in Iterator may be non-consecutive,
so the number in classValue might be larger than length of the Iterator
 2020-04-03 12:31:48 -07:00
Qunxin Liu 5ad761b943 [subset] GDEF MarkGlyphSets subsetting support 2020-02-26 15:15:21 -08:00
Qunxin Liu fcd7f33bbb [subset] GDEF glyphClassDef subsetting support 
glyphClassDef uses the same ClassDef format. However, glyphClassDef table
uses predefined class values so we do not remap class values.
 2020-02-26 11:10:31 -08:00
Garret Rieger 411225426f Fix glyph closure for alternate substitution. 
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 
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 
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 
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 
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
Qunxin Liu 36a5c042d7 [subset] Add "--name-languages" and "--name-legacy" options 
Make name table subsetting consistent with fontTools
 2020-01-24 23:17:04 +03:30
Ebrahim Byagowi e171beeb5f Revert "[subset] Add "--name-languages" and "--name-legacy" options" 
Causes tests failures, please reapply when tests are fixed, thanks.

This reverts commit fd85818b5b.
 2020-01-24 19:51:32 +03:30
Qunxin Liu fd85818b5b [subset] Add "--name-languages" and "--name-legacy" options 
Make name table subsetting consistent with fontTools
 2020-01-23 17:24:05 -08:00
Qunxin Liu c370da45ff [subset] Cmap table: remove encodingRecord entry for empty cmap4 subtable 2020-01-23 17:23:55 -08:00
Qunxin Liu a3cf4ae080 [subset] Add more tests for GPOS1 subsetting 
These tests were left out because of issue: https://github.com/fonttools/fonttools/issues/1709
Now re-adding these tests since the issue is resolved.
 2020-01-17 13:33:46 -08:00
Qunxin Liu e565d1f9bc [subset] subset lookup/feature/script lists for GSUB/GPOS 2020-01-15 14:04:33 -08:00
ckitagawa 78b50a67be Address initial comments 2020-01-15 13:36:01 -08:00
ckitagawa 43b6c865ae [subset] Support sbix subsetting 2020-01-15 13:36:01 -08:00
Qunxin Liu 1db2c1d0da fix for cmap4 and OS_2 subsetting: maximum character code allowed is 0xFFFF 2020-01-09 10:00:32 -08:00
blueshade7 ea8fdfa079 Merge branch 'master' into var-subset 2019-11-22 15:59:09 -08:00
Qunxin Liu 1f0a9d9be9 [subset] GPOS Lookup Type 2: PairPos 2019-10-21 12:35:28 -07:00
Qunxin Liu b66094ada0 [subset] GSUB Lookup Type 6: ChainContextSubst 2019-10-18 16:52:55 -07:00
Ebrahim Byagowi 19d45dcab7 Merge remote-tracking branch 'upstream/master' into var-subset 2019-10-03 13:39:17 +03:30
Qunxin Liu b0c3eb06b6 [subset] GPOS Lookup Type 3: CursivePos 2019-09-25 05:43:25 +09:00
Qunxin Liu bf66d1bf58 [subset] Add integration tests for cmap14 2019-09-20 07:55:11 +09:00
Ebrahim Byagowi 9ff32b79b3 Merge remote-tracking branch 'upstream/master' into glyf-rebase 2019-08-29 19:53:18 +04:30
Qunxin Liu 321d5588d4 [subset] Add subsetting for GPOS Lookup Type 1: Single Adjustment Positioning Subtable 2019-08-06 14:06:35 -07:00