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3122 Commits

Author SHA1 Message Date
Behdad Esfahbod
7d5e7613ce Fail blob creation if length overflows or is too large 
Fail if blob start plus length overflows; or if blob length
is greater than 2GB.  It takes a while for fonts to get to that
size.  In the mean time, it protects against bugs like this:

  http://www.icu-project.org/trac/ticket/11450

Also avoids some weird issues with 32bit vs 64bit systems
as we accept length as unsigned int.  As such, a length of
-1 will cause overflow on 32bit machines, but happily
accepted on a 64bit machine.  Avoid that.
 2014-12-18 18:22:21 -08:00
Behdad Esfahbod
d5a5052098 Assert that blob length doesn't overflow address. 
This will crash now, if blob was created with wrong length.
Check for that coming next commit.
 2014-12-18 18:09:41 -08:00
Behdad Esfahbod
093c520de5 [otlayout] Mark variables that are C arrays as opposed to OT::ArrayOf 2014-12-12 21:07:53 -08:00
Behdad Esfahbod
9df0a52030 [otlayout] Avoid invalid access with Context format 3 2014-12-12 20:54:28 -08:00
Behdad Esfahbod
295ef1dd52 [ot] Debug get_coverage 2014-12-12 20:43:18 -08:00
Behdad Esfahbod
00f6a8e334 [ot] Print format in dispatch trace 2014-12-12 20:36:49 -08:00
Behdad Esfahbod
5c7d6f02d7 Minor 2014-12-12 20:28:49 -08:00
Behdad Esfahbod
153beebba9 [ot] Make sure all toplevel tables have tableTag 2014-12-12 19:46:09 -08:00
Behdad Esfahbod
282b13f9b4 [sanitize] Improve debug output some more 2014-12-12 19:34:49 -08:00
Behdad Esfahbod
0766ee1f4e [sanitize] Improve debug output 2014-12-12 18:23:20 -08:00
Behdad Esfahbod
e6f80fa104 [indic] Allow ZWJ/ZWNJ before SM 
In Oriya, a ZWJ/ZWNJ might be added before candrabindu to encourage
or stop ligation of the candrabindu.  This is clearly specified in
the Unicode section on Oriya.  Allow it there.  Note that Uniscribe
doesn't allow this.

Micro tests added using Noto Sans Oriya draft.

No changes in numbers.  Currently at:

BENGALI: 353725 out of 354188 tests passed. 463 failed (0.130722%)
DEVANAGARI: 707307 out of 707394 tests passed. 87 failed (0.0122987%)
GUJARATI: 366349 out of 366457 tests passed. 108 failed (0.0294714%)
GURMUKHI: 60732 out of 60747 tests passed. 15 failed (0.0246926%)
KANNADA: 951190 out of 951913 tests passed. 723 failed (0.0759523%)
KHMER: 299070 out of 299124 tests passed. 54 failed (0.0180527%)
MALAYALAM: 1048147 out of 1048334 tests passed. 187 failed (0.0178378%)
ORIYA: 42320 out of 42329 tests passed. 9 failed (0.021262%)
SINHALA: 271662 out of 271847 tests passed. 185 failed (0.068053%)
TAMIL: 1091753 out of 1091754 tests passed. 1 failed (9.15957e-05%)
TELUGU: 970555 out of 970573 tests passed. 18 failed (0.00185457%)
 2014-12-10 12:05:24 -08:00
Behdad Esfahbod
fde3e4a423 In hb_ot_collect_glyphs(), don't recurse to a lookup more than once 
Otherwise, we might process a lookup thousands of times, with no
benefit.  This pathological case was hit by Noto Nastaliq Urdu Draft
in Firefox's code to determine whether space glyph is involved in
any GSUB/GPOS rules.  A test page is at http://behdad.org/urdu

See:
https://bugzilla.mozilla.org/show_bug.cgi?id=1090869
 2014-10-29 11:23:08 -07:00
Behdad Esfahbod
5a5640d850 Move code around 2014-10-14 21:26:13 -07:00
Behdad Esfahbod
666b42f73b Move macros around 
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=84491
 2014-10-14 21:24:59 -07:00
Behdad Esfahbod
5c87120b81 Fix misc warnings 
Fixes https://github.com/behdad/harfbuzz/pull/51
 2014-10-14 20:07:31 -07:00
Behdad Esfahbod
8afaf09687 [ft] Add NO_HINTING in a couple other places 2014-10-02 16:40:41 -04:00
Behdad Esfahbod
5de0407337 Help clang with gcov 2014-10-01 18:18:25 -04:00
Behdad Esfahbod
c0b82ba32a Create ragel-generated files in srcdir 2014-10-01 14:24:07 -04:00
Behdad Esfahbod
79bbb10b0d Clean ragel-generated headers in maintainercleanfiles 2014-10-01 13:33:21 -04:00
Behdad Esfahbod
8971cac83e Don't use tmp files in Makefile 
Useful for code-coverage generation of the ragel-generated files
as they will now contain the correct .hh filename in them.
 2014-10-01 12:42:16 -04:00
Behdad Esfahbod
2272318665 check-static-inits: Filter out zero-length sections 
When compiling with -O0, zero-sized constructors were showing up
and confusing the test.
 2014-10-01 11:56:07 -04:00
Behdad Esfahbod
b695a3dc23 check-static-inits: check for static finalizers 2014-10-01 11:55:14 -04:00
Behdad Esfahbod
250398b1e4 Hide other bubble-sort 2014-10-01 11:28:59 -04:00
Behdad Esfahbod
c1e8744262 Hide bubble-sort! 2014-10-01 11:07:08 -04:00
Behdad Esfahbod
156852991e [ot-font] Add hb_ot_face_cmap_accelerator_t 2014-09-25 17:45:49 +03:00
Behdad Esfahbod
d088ccaf11 [ot-font] Minor 2014-09-25 17:26:56 +03:00
Behdad Esfahbod
d7c160a153 [ot-font] Handle missing vertical metrics tables 2014-09-25 17:15:35 +03:00
Behdad Esfahbod
be1cca2702 [ot-font] Add metrics_accel_t 2014-09-25 16:53:24 +03:00
Behdad Esfahbod
d41b809e9d [ot-font] Start adding vertical support 2014-09-25 13:22:01 +03:00
Behdad Esfahbod
22f0de5025 Fix build 2014-08-25 12:54:57 -04:00
Behdad Esfahbod
d457e3f0ff [arabic] Don't #include __FILE__ 
Fine!

https://code.google.com/p/chromium/issues/detail?id=406957
 2014-08-25 12:31:19 -04:00
Behdad Esfahbod
9ceb673d9c [arabic] Allow disabling win1256 fallback code 
By defining HB_NO_WIN1256.
 2014-08-25 11:48:12 -04:00
Behdad Esfahbod
8a93195021 [ot] Prefer Windows platform cmap tables / accept all Unicode encodingIDs 
Some fonts on the Mac ship with (0,1).
 2014-08-22 12:06:57 -04:00
Behdad Esfahbod
270971a0fc [win32] Avoid preprocessor warnings re macros 2014-08-15 14:28:04 -04:00
Behdad Esfahbod
8c6bd34d38 Fix check-symbols on OS X 2014-08-14 13:33:37 -04:00
Behdad Esfahbod
522b1cc526 [coretext] Hide feature_mappings 2014-08-14 13:29:30 -04:00
Behdad Esfahbod
0d2c2f238b Simplify hb-object 2014-08-14 13:25:55 -04:00
Behdad Esfahbod
9d861b81f3 Really fix clang build this time 2014-08-14 13:15:21 -04:00
Behdad Esfahbod
272226f294 Revert "Fix build on clang after previous commit" 
This reverts commit 9c80cbc87f23040a334e30c750f64523d9ef10c8.
 2014-08-14 13:11:33 -04:00
Behdad Esfahbod
9c80cbc87f Fix build on clang after previous commit 2014-08-14 13:09:52 -04:00
Behdad Esfahbod
a5a27073cf Rewrite this==NULL checks to avoid undefined behavior 
Fixes https://code.google.com/p/chromium/issues/detail?id=403594
 2014-08-14 13:05:36 -04:00
Behdad Esfahbod
cc3b2d432b Remove this==NULL check from face->reference_table() 
Not supposed to happen, and apparently this is undefined in C++.
https://code.google.com/p/chromium/issues/detail?id=403594
 2014-08-14 13:00:47 -04:00
Behdad Esfahbod
cd7ea4f791 Make hb_object_t members private 
In preparation for fixing:
https://code.google.com/p/chromium/issues/detail?id=403594
 2014-08-14 12:57:02 -04:00
Behdad Esfahbod
20076cc41e [coretext] Add version guards for kCTLanguageAttributeName 2014-08-12 19:26:35 -04:00
Behdad Esfahbod
1b3011c27d [coretext] Pass buffer language to CoreText 2014-08-12 19:17:49 -04:00
Behdad Esfahbod
3eb6a4dbf2 [coretext] Minor 2014-08-12 19:17:45 -04:00
Behdad Esfahbod
08acfe0d3a [hb-coretext] Fix cluster order of notdef runs in RTL text 2014-08-12 19:17:45 -04:00
Behdad Esfahbod
30eed75de2 [shape-plan] Fix typo! 
The only effect is, if shaper_list was not NULL and no shaper was found,
we now don't insert anything into cache and return earlier.
 2014-08-12 17:15:09 -04:00
Behdad Esfahbod
dc9aba6fc5 [shape-plan] Better debug messages 2014-08-12 17:14:36 -04:00
Behdad Esfahbod
e956c65bf7 [shape-plan] Simplify macro 2014-08-12 17:06:50 -04:00