5ab50eebd7
collect_unicodes() with clamp, calling add_range()
...
Use add_range instead an inner loop, clamp its input number by
number of glyphs a face has.
Even the face cmap12 and 13 have 32-bit hb_codepoint_t, which is here
used to make timeout, face's maxp has 16-bit gid limitation at least for now,
using that makes sure we both fix and the timeout and don't need to change
much things here also in order to support 32-bit gids also someday.
Fixes #2204
2020-02-29 13:02:29 +03:30
414529e45a
[subset] Limit the number of feature indices processed during script subsetting.
2020-02-28 16:10:14 -08:00
75622b0d24
[subset] Limit the number of features processed in the feature closure.
2020-02-28 16:10:14 -08:00
410b4881d0
[subset] Add fuzzer timeout testcase.
2020-02-28 16:10:14 -08:00
c66ee213b7
Limit the number of feature indices processed during feature collection.
2020-02-28 16:10:14 -08:00
e57ced5fc0
[gvar] Add other possibly fixed fuzzer case
...
Speculatively should've been fixed by 61208401https://crbug.com/oss-fuzz/20924 related
2020-02-28 23:29:05 +03:30
758fda728b
[glyf] Don't accept gids higher than maxp's glyphs number
...
This specially becomes concerning on sub-components where a gvar table
that is sanitized using maxp's glyphs number overflows when a high gid
accepted here goes to it, maybe an additional check can be put there
also, this however feels to be enough.
Fixes https://crbug.com/oss-fuzz/20944
2020-02-28 23:19:06 +03:30
e642aab116
[subset] Add source_blob as a hb_subset_context_t field ( #2203 )
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So no more double sanitizing source table.
2020-02-28 22:24:25 +03:30
e90213868b
Revert "collect_unicodes() to check gid < num_glyphs with cmap 12"
...
Didn't fix the case actually, making bots to fail.
This reverts commit 15b43a4104
2020-02-28 21:24:51 +03:30
61208401f4
[gvar] Use hb_bytes_t.check_range instead having in house one
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And use TupleVarHeader calculated size for validity check.
Fixes https://crbug.com/oss-fuzz/20919 and possibly other gvar related issues
2020-02-28 21:09:07 +03:30
15b43a4104
collect_unicodes() to check gid < num_glyphs with cmap 12
...
fixes #2204
2020-02-28 20:15:39 +03:30
868ecf7b26
[draw] Add fuzzer runner
2020-02-28 19:57:56 +03:30
b0749bfaa5
[subset] GDEF LigCaretList subsetting support
2020-02-28 14:51:52 +03:30
002f0e20c4
reimplment serialize_int using check_assign()
2020-02-28 14:21:58 +03:30
14b134379d
[gvar] Minor, check whether sub_array result also have enough room
2020-02-27 21:01:48 +03:30
8eba66c1c6
[gvar] Fix invalid memory access by refactoring GlyphVarData fetch logic
...
Fixes https://crbug.com/oss-fuzz/20906
2020-02-27 20:26:54 +03:30
f44e1dc07d
Fix spelling.
2020-02-27 13:33:56 +03:30
5ad761b943
[subset] GDEF MarkGlyphSets subsetting support
2020-02-26 15:15:21 -08:00
fcd7f33bbb
[subset] GDEF glyphClassDef subsetting support
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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
50129b03a1
Add a reverse () call to hb_array_t.
2020-02-26 11:09:54 -08:00
38c6598c1c
Switch to C style comments.
2020-02-26 11:09:54 -08:00
52b6e0baa0
When serializing cmap14 order the offsets from smallest to largest.
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Current versions of OTS fail fonts with cmap 14's who's last offset does not point to the a block at the end of the table.
2020-02-26 11:09:54 -08:00
a99134c5be
add oss-fuzz 20886 test file
2020-02-26 09:58:03 -08:00
d0aaba5c50
fixes oss-fuzz 20886
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hb_set_t::resize () is needed after compact()
2020-02-26 09:35:32 -08:00
05a25c1a5b
[cff] minor, remove unused fields
2020-02-26 19:35:27 +03:30
9fe0dc3464
[draw] Pass draw_helper_t itself around instead recreating it
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Specially helpful if we want to change the design
2020-02-26 17:40:46 +03:30
1b8b863898
minor
2020-02-26 16:36:48 +03:30
4cdaa9d1f4
[glyf] Simplify contour end logic
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So no need for infinite loop here
2020-02-26 16:29:14 +03:30
132fcfbc47
[fuzz] minor don't abort main.cc when the file was empty or not found
2020-02-26 16:15:17 +03:30
84163c83d3
[draw] Skip commands and paths not contributing anything
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They aren't contributing to rendering and making issue for stroking, let's skip them
ourselves as Skia does also https://skia-review.googlesource.com/c/skia/+/268166
They are useful for extracting extents and so which that functionality won't be effected by this change.
2020-02-26 16:09:28 +03:30
073d4954e0
[draw] Port glyf path extract to draw_helper_t
2020-02-26 15:40:40 +03:30
0ebf3a4e62
[draw] Move common CFF path building logic to draw_helper_t
2020-02-26 15:15:22 +03:30
c400cb8863
Re-implement hb_set_t::del_range ( #2194 )
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* optimize hb_set_del_range()
fix issue #2193
* fixed bug & added tests
* coding & comment tweaks
2020-02-25 16:06:03 -08:00
c21eb86bfd
Merge pull request #2163 from harfbuzz/absolute-link
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added add_link_abs()
2020-02-26 02:54:38 +03:30
4081439d2a
tweak reflecting review & add test cases
2020-02-25 15:03:12 -08:00
152000d9c7
[fuzz] Practice variations on font object
2020-02-25 21:16:57 +03:30
036d868913
[draw] Add a fuzzer
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Specially checks correctness of the API semantics:
* no move happens when a path is already opened with move-to.
* no path will be left open and close-path will happen at the end of opened paths.
* no path opens with a move-to and will be closed with no length.
* paths start and ending points matches.
* no line/quadratic/cubic command will be issued when no path is started.
2020-02-25 19:09:44 +03:30
de896278f7
coding & comment tweaks
2020-02-25 07:12:20 -08:00
2f97aa65e5
[cff] Make sure previous is ended on processing a seac
2020-02-25 18:07:44 +03:30
acc2d4738e
[cff] Make path extract easier to read and more defensive
2020-02-25 18:05:48 +03:30
b59eb54f70
[glyf] Refactor, move get_points inside Glyph
2020-02-25 12:56:32 +03:30
173b745da8
fixed bug & added tests
2020-02-24 22:56:57 -08:00
a5012e97c4
optimize hb_set_del_range()
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fix issue #2193
2020-02-24 17:09:48 -08:00
96b71e802f
[fuzz] make the custom loader to handle multiple files
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Actually this was the way it used to work :)
2020-02-24 23:01:02 +03:30
1f5a54c768
[gvar] fix infinite loop introduced by 11f3fca
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The attempt on removing end_points had made the code unreadable
and has intrdouced infinite, fixed by making the code clear what
it tries to achieve.
2020-02-24 14:30:07 +03:30
f00eb4ebfa
[gvar] Don't compare against Null address
2020-02-24 09:25:19 +03:30
19b78d56cd
[gvar] Accept coord_count even if is higher than gvar's axisCount
2020-02-24 09:25:18 +03:30
197e2e929b
[gvar] Return gracefully even if gvar wasn't used at all
2020-02-24 08:55:35 +03:30
346ab9884b
[gvar] Return gracefully even if coords_count != gvar's axis count
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It shouldn't be that common to have the situation, even so, no need to
reject entire a glyph even if gvar isn't used.
2020-02-24 08:48:54 +03:30
5f23a76e99
[cff] Don't remove coords const qualification
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We should find some way to audit all the const removals, perhaps by
enabling -Wold-style-cast warning on the project and turning all the
implicit const removals to const_cast.
2020-02-24 08:23:25 +03:30
Michiharu Ariza
Garret Rieger
Ebrahim Byagowi
Qunxin Liu
Evgeniy Reizner