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4299 Commits

Author SHA1 Message Date
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
Behdad Esfahbod 50f489a0a0 Typo 2015-10-11 20:59:29 -04:00
Behdad Esfahbod ee9b0b6cb5 Fix another sanitize bug 
Also discovered by "libFuzzer".
 2015-10-09 14:23:15 -04:00
Behdad Esfahbod 34379b49e6 Add test for previous fix 2015-10-09 12:34:02 -04:00
Behdad Esfahbod f396fbb000 Fix return value of sanitize when subformat is not readable 
This is a fix on top of the previous issue fixed in
c917965b9e.

This was caught by "libFuzzer" testing.
 2015-10-09 12:25:55 -04:00
Behdad Esfahbod 77a1a2bc18 Add hb_dispatch_context_t 2015-10-09 12:20:58 -04:00
Behdad Esfahbod 3e905e396b Add hb_font_set_parent() 
No reason to not have it.  Makes life easier later.
We (hb-ft, hb-ot-font, etc) can use this API to inject new
parent into a font...
 2015-10-08 12:51:02 -04:00
Behdad Esfahbod edeb3dabf4 [ft] Add version for new API 2015-10-08 12:47:15 -04:00
Behdad Esfahbod 2a9627c564 [ft] API: Add hb_font_[sg]et_load_flags() API 
This changes the default load_flags of fonts created using
hb_ft_font_create() from NO_HINTING to DEFAULT.  Hope that doesn't
break too much client code.

Code calling hb_ft_font_set_funcs() is unaffected.
 2015-10-07 17:39:37 -04:00