AuroraMiddleware/harfbuzz
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
10,403 Commits 1 Branch 0 Tags 55 MiB
b0749bfaa5
Commit Graph

1472 Commits

Author SHA1 Message Date
Ebrahim Byagowi
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
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
ariza
a99134c5be add oss-fuzz 20886 test file 2020-02-26 09:58:03 -08:00
Ebrahim Byagowi
1b8b863898 minor 2020-02-26 16:36:48 +03:30
Ebrahim Byagowi
132fcfbc47 [fuzz] minor don't abort main.cc when the file was empty or not found 2020-02-26 16:15:17 +03:30
Ebrahim Byagowi
84163c83d3 [draw] Skip commands and paths not contributing anything 
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
Michiharu Ariza
c400cb8863
Re-implement hb_set_t::del_range (#2194) 
* optimize hb_set_del_range()

fix issue #2193

* fixed bug & added tests

* coding & comment tweaks
 2020-02-25 16:06:03 -08:00
ariza
4081439d2a tweak reflecting review & add test cases 2020-02-25 15:03:12 -08:00
Ebrahim Byagowi
152000d9c7 [fuzz] Practice variations on font object 2020-02-25 21:16:57 +03:30
Ebrahim Byagowi
036d868913 [draw] Add a fuzzer 
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
ariza
173b745da8 fixed bug & added tests 2020-02-24 22:56:57 -08:00
ariza
a5012e97c4 optimize hb_set_del_range() 
fix issue #2193
 2020-02-24 17:09:48 -08:00
Ebrahim Byagowi
96b71e802f [fuzz] make the custom loader to handle multiple files 
Actually this was the way it used to work :)
 2020-02-24 23:01:02 +03:30
Ebrahim Byagowi
1f5a54c768 [gvar] fix infinite loop introduced by 11f3fca 
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
Ebrahim Byagowi
e17fd0d91c [tools] More on py3 compatibility 2020-02-24 00:10:11 +03:30
Ebrahim Byagowi
0cf050a7b1 [draw] Merge consequent move-to commands of CFF/CFF2 2020-02-23 23:23:50 +03:30
Ebrahim Byagowi
86bd5a0ba1 [draw] End CFF paths with a line-to 
Issue a line-to command when start and end point of a path isn't same, matches freetype also.
 2020-02-23 23:23:50 +03:30
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
Ebrahim Byagowi
8c652f72fc Minor, switch to https links where possible 2020-02-19 16:32:44 +03:30
Ebrahim Byagowi
8d19907704 Remove python2 support from tests/utils scripts 2020-02-19 16:17:45 +03:30
Qunxin Liu
493e40ff78 [subset] add one empty byte to glyf table 
if it's going to end up empty after subsetting
This will make OTS happy and match what fontTools is doing now.
 2020-02-19 12:24:38 +03:30
Ebrahim Byagowi
60f8f384f9 [glyf] Switch to ttf-parser's glyf to path algorithm 
It consumes each point at a time and doesn't need to know contour size before hand
 2020-02-18 00:49:09 +03:30
Ebrahim Byagowi
a94d1af193 [fuzz] minor style fixes 2020-02-12 19:30:31 +03:30
Ebrahim Byagowi
1c015d3e9f [fuzz] minor fuzzer case move, oops 2020-02-12 19:19:37 +03:30
Ebrahim Byagowi
49341faee2 [fuzz] minor, move two fuzzer cases to their correct place 2020-02-12 19:17:18 +03:30
Ebrahim Byagowi
97229244eb [fuzzer] Fix hb-set-fuzzer minor overflow issue 
Size shouldn't be smaller than the struct not its pointer size.

Fixes https://crbug.com/oss-fuzz/20655
 2020-02-12 15:41:51 +03:30
Garret Rieger
7b42403c1c Add explicit values to the set fuzzer enums. 2020-02-11 13:25:44 -08:00
Garret Rieger
e805923310 Add a few basic seeds for the set fuzzer. 2020-02-11 13:25:44 -08:00
Ebrahim Byagowi
ff984ed3cd Use multiplication to avoid undefined behaviour per clang 
Newer versions of MSVC with /we4146 don't like putting negative sign behind a
unsigned number as https://github.com/harfbuzz/harfbuzz/pull/2069
That however have made https://crbug.com/1050424 this complain:
  src/hb-ot-color-sbix-table.hh:304:28: runtime error: negation of -2147483648 cannot be represented in type 'int';
                                        cast to an unsigned type to negate this value to itself
which apparently can be fixed using this change.

Let's see if this won't make another ubsan complain!
 2020-02-11 19:51:52 +03:30
Garret Rieger
bca9bc6b92 Add hb-set-fuzzer. 
It fuzzes all of the hb_set process methods (intersection, subtraction, union, and symmetric difference).
 2020-02-11 03:08:39 +03:30
Ebrahim Byagowi
ab2d3ec542 [var] Implement hb_font_get_var_coords_design 
Hold design coords and simulate when normalized coords are set directly.
 2020-02-08 11:04:34 +03:30
Garret Rieger
2742c81624 Fix page_map corruption in hb_set_t during process(). 
If a process operation results in less pages then the current set has, it will likely corrupt the page_map since it overwrites page_map entries ahead of where it's processing. This fixes that problem by removing page_map entries that will be dropped. Then dropping orphaned pages and re-indexing retained pages.
 2020-02-08 10:27:44 +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
b4d3bf1d8a [draw] Add hb_draw_funcs_is_immutable and hb_draw_funcs_make_immutable 2020-02-06 11:52:32 +03:30
Ebrahim Byagowi
63b8190db8 [test] minor 
Remained from previous naming.
 2020-02-06 11:38:35 +03:30
Ebrahim Byagowi
3a98c7fae1 [glyf] Skip empty contours 
As https://savannah.nongnu.org/bugs/index.php?57701
 2020-02-06 11:35:48 +03:30
Ebrahim Byagowi
c31762e9e8
[test] minor 
don't test first ten glyph, just testing cp just like other API calls is enough
 2020-02-05 23:12:37 +03:30
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
7d542a5274 Refactor to two iterators 2020-01-29 10:21:00 -05:00
ckitagawa
49b98e8650 Fix nullptr de-reference failure if both blobs in a subset test are 0 in size 2020-01-28 15:35:53 -05:00
ckitagawa
ed857c4680 [subset] Add COLR support 2020-01-28 15:35:53 -05:00
Ebrahim Byagowi
d106900bfd [draw][glyf] Implement quadratic to cubic call translation 2020-01-28 15:27:27 +03:30
Ebrahim Byagowi
74fdcdcac8 [draw] Rename conic_to to quadratic_to 2020-01-28 13:45:22 +03:30