99b5b3f1b1
[gvar] Make sure TupleVarHeader has the needed size
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Fixes https://crbug.com/oss-fuzz/21026
2020-03-04 12:43:26 +03:30
b398748d8b
[algs] Add hb_clamp
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Similar to stl and glsl's clamp
2020-03-04 11:18:19 +03:30
558f922788
[fuzz] Avoid empty memcpy and ubsan complain by length checking before memcpy
2020-03-03 21:39:22 +03:30
6543d166fd
[fuzz] Remove the not yet fixed timeout, going to investigate
2020-03-03 21:39:22 +03:30
2bbf1c8673
[fuzz] Add more of supposed to already be fixed cases from Chromium bug tracker
2020-03-03 21:39:22 +03:30
f745777c60
minor, debug bit, ops
2020-03-03 19:14:41 +03:30
f253f06cf3
[fuzz] Add another fixed case
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https://crbug.com/oss-fuzz/14626
another numerous subtables count which is fixed by d38360397
2020-03-03 19:12:04 +03:30
d383603976
Limit OT::Lookup subtables ( #2219 )
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Fixes https://crbug.com/oss-fuzz/13943
2020-03-02 22:41:08 +03:30
29efd964f2
[fuzz] Add cases that marked as wontfix
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Let's see if they were really false alarms, if so, let's just have them.
2020-03-02 14:22:29 +03:30
60262e4ca9
[var] Build end-points array on gvar itself
2020-02-29 22:57:59 +03:30
cb65150fec
[draw] minor
2020-02-29 16:12:54 +03:30
44169f3396
[draw] Fix invalid rendering of some glyph on Estedad-VF
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Basically reverts 11f3fcaFixes #2215
2020-02-29 16:04:03 +03:30
86c40b3a1d
[fuzz/draw] Call _get_glyph_extents
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Other render related APIs also may be added also later such
as ot-color and future rendering things.
2020-02-29 14:53:34 +03:30
5ab50eebd7
collect_unicodes() with clamp, calling add_range()
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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
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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
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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"
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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
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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
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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
Ebrahim Byagowi
Michiharu Ariza
Garret Rieger
Qunxin Liu
Evgeniy Reizner