AuroraMiddleware/harfbuzz
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Author SHA1 Message Date
Behdad Esfahbod
49ef630936 Adjust the width of various spaces if font does not cover them 
See discussion here:
81ef4f407d

There's no way to disable this fallback, but I don't think it would
be needed.  Let's hope for the best!

Fixes https://github.com/behdad/harfbuzz/issues/153
 2015-11-04 17:27:07 -08:00
Behdad Esfahbod
aa7044de0c Generalize flags types 2015-11-04 16:25:57 -08:00
Behdad Esfahbod
7793aad946 Normalize various spaces to space if font doesn't support 
This resurrects the space fallback feature, after I disabled
the compatibility decomposition.  Now I can release HarfBuzz
again without breaking Pango!

It also remembers which space character it was, such that later
on we can approximate the width of this particular space
character.  That part is not implemented yet.

We normalize all GC=Zs chars except for U+1680 OGHA SPACE MARK,
which is better left alone.
 2015-11-04 15:51:41 -08:00
Behdad Esfahbod
8b3c7f9ede [test] Support recording multiple lines of text in record-test.sh 2015-11-04 15:48:51 -08:00
Behdad Esfahbod
8565839480 Protect against possible invalid-memory access after OOM 2015-11-04 14:46:52 -08:00
Behdad Esfahbod
4cc80bed25 Fix typo! 
Ouch!  Fortunately that function was unused.
 2015-11-04 14:46:10 -08:00
Behdad Esfahbod
9ac4b9656d Add Unicode space category 
Unused so far.
 2015-11-04 14:19:25 -08:00
Behdad Esfahbod
8249ec3f86 Make top-byte of unicode_props available to be used differently per-GC 2015-11-04 13:26:17 -08:00
Behdad Esfahbod
cc5d3a3388 Towards using top-byte of unicode-props for more things 2015-11-04 13:22:33 -08:00
Behdad Esfahbod
2f38dde5a1 Add _hb_glyph_info_is_unicode_mark() 
Unused right now.
 2015-11-04 13:17:33 -08:00
Behdad Esfahbod
90d75f93bb Tighten ccc-setting a bit and document it 2015-11-03 12:58:12 -08:00
Behdad Esfahbod
2f0dfd43cd Fix test expectation 2015-11-03 12:28:34 -08:00
Behdad Esfahbod
df698f3299 [ot-font] Fix hmtx table length checking, *again* 
Exactly the same problem that I fixed in
63ef0b41dc

I rewrote the table checking yesterday in
67f8821fb2
and introduced the exact same issue again. :(
Good thing we have ongoing fuzzing going now.  Was discovered
immediately by libFuzzer.  Thanks kcc!

https://github.com/behdad/harfbuzz/issues/139#issuecomment-153449473
Fixes https://github.com/behdad/harfbuzz/issues/156
 2015-11-03 12:15:12 -08:00
Behdad Esfahbod
3530cc2d7c [util] Fix option-parsing leaks 2015-11-03 12:13:28 -08:00
Behdad Esfahbod
642135f3b2 [util] In --debug mode, duplicate font data 
This has the effect that the font data will end up in a memory
section malloc()ed exactly to its size.  This gives us better
valgrind detection of out-of-bounds access.

Previously, the font data was placed in a mmap()ed section or
GString-allocated area, which didn't have proper protections
at the end when running under valgrind.
 2015-11-03 11:26:34 -08:00
Behdad Esfahbod
ed2024ef93 [perf] Micro-optimize 2015-11-02 18:03:38 -08:00
Behdad Esfahbod
76a5310a83 Remove irrelevant comment 
I tried moving the is_default_ignorable() function to an INTERNAL
function.  That made the binary size grow by 5k AND things got a
tad bit slower!
 2015-11-02 17:52:45 -08:00
Behdad Esfahbod
8259669fbd Minor 2015-11-02 17:44:05 -08:00
Behdad Esfahbod
9382c471ea Combine unicode_props0/1 into a uint16 
Slightly faster.  In prep for more changes.
 2015-11-02 17:36:51 -08:00
Behdad Esfahbod
7127718545 [perf] Only call combining_class() for marks 
Saves some time.  Also preparing for reusing the ccc byte for other stuff.
 2015-11-02 17:27:48 -08:00
Behdad Esfahbod
5ba450407b Make max context-length and max nesting level configurable 
...at compile time.
 2015-11-02 15:43:39 -08:00
Behdad Esfahbod
67f8821fb2 [ot] Make bad-hmtx handling match FreeType 
Also route fuzzing-related tests through hb-ot-font, to reduce dependency
on FreeType behavior for badly-broken fonts.  Fixes failing test with
FreeType master.
 2015-11-02 15:37:29 -08:00
Behdad Esfahbod
672ca3b4e6 Use templates for making sure expression is constant 2015-10-26 14:05:05 -07:00
Behdad Esfahbod
5c8174eda3 Update comments for removal of compat decompositions 2015-10-21 18:51:40 -02:00
Behdad Esfahbod
f679970040 Disable compatibility decomposition usage during normalization 
Fixes https://github.com/behdad/harfbuzz/issues/152
 2015-10-21 17:20:55 -02:00
Behdad Esfahbod
ce889189c1 Fix two more -Wshadow warnings 
https://bugzilla.mozilla.org/show_bug.cgi?id=1215894
 2015-10-21 11:23:12 -02:00
Behdad Esfahbod
4a6b1eedbb Fix one more -Wshadow warning 
https://bugzilla.mozilla.org/show_bug.cgi?id=1215894
 2015-10-21 11:20:55 -02:00
Behdad Esfahbod
6f932bc8f9 Fix a few more -Wshadow-local warnings 
https://bugzilla.mozilla.org/show_bug.cgi?id=1215894
 2015-10-21 11:16:49 -02:00
Behdad Esfahbod
b90cb366d7 Fix one -Wshadow-compatible-local warning 
From https://bugzilla.mozilla.org/show_bug.cgi?id=1215894
 2015-10-21 11:13:21 -02:00
Behdad Esfahbod
50e5750bd8 Avoid unnecessary cast to 64-bit 
Fixes https://github.com/behdad/harfbuzz/issues/146

Or I think it should.
 2015-10-21 11:10:40 -02:00
Behdad Esfahbod
305d2fbf5a Add HB_FALLTHROUGH 
Borrowed from https://bugzilla.mozilla.org/show_bug.cgi?id=1215411
 2015-10-21 11:04:28 -02:00
Ebrahim Byagowi
f35b3e931d Add a prototype of DirectWrite as a shaping backend 2015-10-20 22:20:47 +03:30
Behdad Esfahbod
6486e37554 Fix typo 2015-10-20 16:39:41 -02:00
Behdad Esfahbod
753ea7b909 Add BUILD.md to dist 2015-10-20 15:21:18 -02:00
Behdad Esfahbod
5d7a30fde0 Merge pull request #148 from ebraminio/inst 
Add BUILD.md based on harfbuzz.org docs
 2015-10-20 15:19:41 -02:00
Behdad Esfahbod
904b0dc381 Merge pull request #147 from ebraminio/dockerci 
[ci] change to docker infrastructure
 2015-10-19 16:59:43 -02:00
Ebrahim Byagowi
ba096bcc28 [ci] change to docker infrastructure 2015-10-19 22:17:13 +03:30
Ebrahim Byagowi
2fb95a0c9d Add BUILD.md based on harfbuzz.org docs 2015-10-19 22:02:12 +03:30
Behdad Esfahbod
86cadc2cd4 1.0.6 2015-10-15 20:25:29 -03:00
Behdad Esfahbod
ca97ea7aa2 [ft] Revert change-of-behavior of hb_ft_font_create() introduced in 1.0.5 
The default FreeType load flags where changed from FT_LOAD_NO_HINTING
to FT_LOAD_DEFAULT in 2a9627c564.
This is crashing HarfBuzz-enabled FreeType as I suppose it causes
infinite recursion between HB and FT autohinter...

Revert the behavior change.

Fixes https://github.com/behdad/harfbuzz/issues/143
 2015-10-15 20:20:22 -03:00
Behdad Esfahbod
338ffec9e4 Add tests for a couple of fixed issues found by libFuzzer 
From:
https://github.com/behdad/harfbuzz/issues/139#issuecomment-147616887
https://github.com/behdad/harfbuzz/issues/139#issuecomment-148289957
 2015-10-15 12:56:19 -03:00
Behdad Esfahbod
63ef0b41dc [ot-font] Fix hmtx wrong table length check 
Discovered by libFuzzer.  Ouch!

https://github.com/behdad/harfbuzz/issues/139#issuecomment-148289957
 2015-10-15 12:54:28 -03:00
Behdad Esfahbod
613e630617 Reduce max nesting level from 8 to 6 
We probably should implement better system to catch cyclic lookups.
But for now, this speeds up worst case behavior with broken fonts
considerably without compromising legitimate usecases.

https://github.com/behdad/harfbuzz/issues/139#issuecomment-147788447
 2015-10-13 23:33:28 -03:00
Behdad Esfahbod
ab17052924 1.0.5 2015-10-13 10:55:33 -03:00
Behdad Esfahbod
ed13e2ce50 [ot-font] Fix leak 
https://github.com/behdad/harfbuzz/issues/139#issuecomment-147616887
 2015-10-13 10:32:56 -03:00
Behdad Esfahbod
55db94be2b Add test for previous commit 2015-10-13 00:33:59 -04:00
Behdad Esfahbod
f966649747 Fix another memory access issue discovered by libFuzzer 
Fixes https://github.com/behdad/harfbuzz/issues/139#issuecomment-146984679
 2015-10-13 00:30:50 -04:00
Behdad Esfahbod
c1a5dc46c2 [fuzz] Add fuzzing script from kcc@ 
https://github.com/behdad/harfbuzz/issues/139
 2015-10-12 17:39:52 -04:00
Behdad Esfahbod
cc6ea308d4 Extern "C" custom-allocator declerations 2015-10-12 17:21:52 -04:00
Behdad Esfahbod
98c6fccc00 Add test for ee9b0b6cb5 2015-10-11 21:41:04 -04:00