46bf03d691
[subset] add NODISCARD to error checking methods on serializer.
2021-03-18 14:35:36 -07:00
3827a3eb56
[subset] rename serializer::set_error() to err().
2021-03-18 11:20:03 -07:00
f561fa6e4c
Change priority queue to use (priority, value) instead of (value, priority).
2021-03-18 11:13:47 -07:00
b14475d2ae
[subset] further changes to serializer error handling.
...
- Rename enum type and enum members.
- in_errors() now returns true for any error having been set. hb-subset now looks for offset overflow only errors to divert to repacker.
- Added INT_OVERFLOW and ARRAY_OVERFLOW enum values.
2021-03-18 10:51:26 -07:00
73ed59f7a6
[subset] store errors in the serializer as a flag set.
...
Make check_assign/check_equal specify the type of error to set.
2021-03-17 15:58:34 -07:00
b9ecc7420d
[subset] init offset_overflow in hb_serialize_context_t.
2021-03-17 15:53:58 -07:00
cf79fc342d
[subset] limit priority bumps to 16.
2021-03-17 15:53:58 -07:00
0104409959
Fix repack_tests for distcheck.
2021-03-17 15:53:58 -07:00
e2f14e81bd
[subset] fix memory leaks in test-repacker.
2021-03-17 15:53:58 -07:00
d3e2ba7c01
[subset] comment cleanup in hb-repacker.hh
2021-03-17 15:53:58 -07:00
832f2b599b
[subset] Refactor _subset () to reduce nesting and eliminate the use of 'goto'.
2021-03-17 15:53:58 -07:00
bb5c80a7c2
[subset] add error tracking to the repacker.
...
Also check for allocation failures as needed.
2021-03-17 15:53:58 -07:00
b8b8c58b9f
[subset] add tests that check for successful repacking of a real font file.
2021-03-17 15:53:58 -07:00
6e9468fcfb
[subset] cleanup memory leaks in the repacker.
2021-03-17 15:53:58 -07:00
a7a86a6eb4
[subset] Add prioritization offset resolution.
...
Vertices can now be prioritized to force them to sort closer to their parent. The resolver will attempt to use this for overflows on non-shared vertices.
2021-03-17 15:53:58 -07:00
b452b2c76c
[subset] refactor repacker graph to cache edge count and distances of vertices.
2021-03-17 15:53:57 -07:00
75414e82b5
[subset] Add table duplication overflow resolution.
2021-03-17 15:53:57 -07:00
8286bd8094
[subset] use vectors instead of hashmaps throughout the repacker since all keys will be mapped for these use cases.
2021-03-17 15:53:57 -07:00
519ae96617
[subset] switch sort_shortest_distance() to use priority queue.
2021-03-17 15:53:57 -07:00
5d3511e5b1
[subset] Change compute_distances() to use a priority queue.
2021-03-17 15:53:57 -07:00
59ac0a0d0a
[subset] Use priority for comparison in heap.
2021-03-17 15:53:57 -07:00
4c8dd41ed9
[subset] re-write compute distances to use an array lookup for the distance map.
2021-03-17 15:53:57 -07:00
5c4e0ffd97
[subset] Add a basic priority queue datastructure (binary heap).
2021-03-17 15:53:57 -07:00
dd8e5d0e1b
[subset] Only run the repacker for GSUB/GPOS.
2021-03-17 15:53:57 -07:00
aaa7873d42
[subset] add topological sort by closest distance via Dijkstra's algorithm.
2021-03-17 15:53:57 -07:00
8ebe5d734f
Implement will_overflow ().
2021-03-17 15:53:57 -07:00
6b1ea4cbe7
[subset] hook up the repacker to run if offset overflows are encountered during subsetting.
2021-03-17 15:53:57 -07:00
f4c78cc7dd
[subset] Implement Kahn's algo for topological sorting instead of BFS.
2021-03-17 15:53:57 -07:00
00f393dc3f
[subset] finish up BFS sort implementation.
2021-03-17 15:53:57 -07:00
1584d3cb8f
[subset] Start a proof of concept implementation of the GSUB/GPOS offset overflow resolver.
2021-03-17 15:53:57 -07:00
a7d120aeab
Merge pull request #2835 from googlefonts/remove_redundant_sys
...
[subset] Remove redundant LangSys
2021-03-17 14:33:33 -07:00
56ca435787
[subset] fix for collect_features and remove_redundant_lamngsys
...
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
69d772e522
[subset] Fixed test gsub5 test files.
2021-03-17 15:22:07 -06:00
0e1c0fa404
[subset] optimize glyph closure method: step 5
...
add testcase and some fixes
2021-03-17 15:22:07 -06:00
b8a58a0c0b
[subset] optimize glyph closure method: step 4
...
optimize recurse_lookups in Context/ChainContext
glyph closure, only the glyphs that the parent lookup
can apply the recursion to can participate in recursing
the lookup.
2021-03-17 15:22:07 -06:00
62423504ee
[subset] optimize glyph closure method: step 3
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Add function intersects_coverage_glyphs that collects
set of matching glyphs in Coverage table
2021-03-17 15:22:07 -06:00
ef78d0f923
[subset] optimize glyph closure method: step 2
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Add function intersects_class_glyphs that collects
set of glyphs matching class in ClassDef table
2021-03-17 15:22:07 -06:00
b4fc593c3c
[subset] optimize glyph closure method: step1
...
Previous GSUB glyph closure is done by recursively visiting
all reachable lookup tables that apply to any glyphs in the
current/input glyph set, but actually only the glyphs that
the parent lookup can apply the recursion to can participate
in recursing the lookup. This is step 1 for glyph closure
optimization:
1. Add stack of currently active glyph set pointers into hb_closure_context_t
2. Update closure() method in simple GSUB tables to use
this stack in order not to change current glyph set at different stages
of recursion
3. Add function may_have_non_1to1() to GSUB tables
2021-03-17 15:22:07 -06:00
5f4c321d4a
Merge pull request #2894 from googlefonts/gpos_2
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[subset] Update PairPosFormat2 subsetting to match fontTools
2021-03-17 10:20:59 -07:00
1b79b8cd2d
[subset] update gpos tests to reflect updated behaviour.
2021-03-16 15:23:11 -07:00
2df39bcae7
[subset] don't allocate a set to use as a glyph filter for PairPosFormat2.
2021-03-16 14:49:35 -07:00
b1b1486d07
[subset] update expected files to not include cmap12 pruning.
2021-03-16 14:49:35 -07:00
bb54e1047d
[subset] Also filter class1 by coverage when collecting variation indices for PairPosFormat2.
2021-03-16 14:49:35 -07:00
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
03538e872a
2.8.0
2021-03-16 19:28:35 +02:00
4c34478b28
Merge pull request #2899 from harfbuzz/ci-fix
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[ci] Don’t install meson from its master branch
2021-03-16 10:37:49 +02:00
daeb277346
Merge pull request #2900 from harfbuzz/nodiscard-buffer
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Mark buffer modification methods that can fail with nodiscard
2021-03-15 18:50:02 -07:00
f2d08578e7
[tests] Increase shape-fuzzer timeout
2021-03-16 01:15:40 +02:00
cad753e20f
[ci] Use known working Ubuntu version
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GitHub Actions seems to be moving ubuntu-latest from ubuntu-18.04 to
ubuntu-20.04, but gcovr is broken for us in the new version.
2021-03-16 01:11:12 +02:00
ff86c72e09
[ci] Avoid duplicate builds on pull requests
...
Don’t run GitHub Actions on pushing to branches other than master. This
was already the case for the linux-ci workflow.
2021-03-16 01:11:12 +02:00
Garret Rieger
Behdad Esfahbod
Qunxin Liu
Khaled Hosny