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176 Commits

Author SHA1 Message Date
Behdad Esfahbod baa329c6a1 [GX] Add compact VariationDevice implementation 
Add compact format that uses signed bytes instead of shorts.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 71b06fd392 [GX] Add VariationAlternates, to allow conditional lookups in GSUB/GPOS 
Not hooked up to runtime yet.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 976eeb8e02 [GX] Minor 2016-12-16 19:06:26 -06:00
Behdad Esfahbod ed8a9067ca [GX] Minor 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 15c5ee6747 [GX] Minor rename 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 4c535a822f [GX] Hookup VariationDevice to Device table implementation 2016-12-16 19:06:26 -06:00
Behdad Esfahbod a0c2366075 [GX] Break out early if factor is zero 
Also disable sanity-checking of variation records.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod ca28670316 [GX] Towards anisotropic interpolation 
Also hookup to ValueRecord and Anchors.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 6d9d3c55bb [GX] Add data types for encoding numerical variations 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 851b0db36d Minor. We should never get to this branch, but fix it anyway. 2016-04-08 23:46:55 -07:00
Behdad Esfahbod d163dc18e6 Minor 2016-01-12 13:05:01 +00:00
Behdad Esfahbod da2fcfdc51 Don't count fixing-up FeatureParams offset as error 
The font Garamond Premier Pro Caption (and possibly many other
Adobe fonts), have many FeatureParamsSize tables with the old
wrong offset.  We handle fixing those up, but they were still
contributing to edit_count, and when I reduced HB_SANITIZE_MAX_EDIT
from 100 to 8 in 14c2de3218, these
fonts were now getting GPOS dropped and hence kerning disabled.

Fix, by not counting edits made towareds offset fix-up.  I'll
also increase edit count again, in the next commit.
 2016-01-05 13:23:45 +00:00
Chun-wei Fan 167c327177 Fix build on MSVC >= 2012 
Use the DEFINE_ENUM_FLAG_OPERATORS macro in winnt.h on Visual Studio,
which defines the bitwise operators for the enumerations that we want to
mark as hb_mark_as_flags_t, which will take care of the situation on newer
Visual Studio (>= 2012), where the build breaks with C2057 errors as the
underlying types of the enumerations is not clear to the compiler when we
do a bitwise op within the declaration of the enumerations themselves.

Also disable the C4200 (nonstandard extension used : zero-sized array in
struct/union) and C4800 ('type' : forcing value to bool 'true' or 'false'
(performance warning)) warnings as the C4200 is the intended scenario and
C4800 is harmless but is so far an unavoidable side effect of using
DEFINE_ENUM_FLAG_OPERATORS.
 2015-11-17 12:19:22 +08:00
Behdad Esfahbod aa7044de0c Generalize flags types 2015-11-04 16:25:57 -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 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 b47159011c Define return_trace() 
Not functional change (expected!).
 2015-09-29 14:57:02 +01:00
Behdad Esfahbod ef79bdf73b Minor 2015-02-25 15:43:35 -08:00
Behdad Esfahbod 8e3d4bae03 Minor 2015-02-25 15:43:33 -08:00
Behdad Esfahbod 40c58923cb [layout] Refactor Lookup::dispatch() 2015-02-25 15:43:30 -08:00
Behdad Esfahbod 70366f5d19 [layout] Refactor get_subtable() 2015-02-25 15:43:29 -08:00
Behdad Esfahbod de2118ed7a Make sanitize() a const method 
This makes a lot of code safer.  We only try modifying the object in one
place, after making sure it's safe to do so.  So, do a const_cast<> in
that one place...
 2015-02-25 15:43:28 -08:00
Behdad Esfahbod 7627100f42 Mark unsigned integer literals with the u suffix 
Simplifies hb_in_range() calls as the type can be inferred.
The rest is obsessiveness, I admit.
 2014-07-11 16:22:13 -04:00
Behdad Esfahbod 7d4ada66c9 Mark unsed members with a "Z" suffix 
There may be more.  There are members that are by definition
redundant or reserved and not needed, NOT what we *currently*
don't use.

I'm sure there's more...
 2014-06-27 17:32:56 -04:00
Behdad Esfahbod 586b60622c Minor: final bits of cleanup 2014-06-27 15:39:47 -04:00
Behdad Esfahbod 99d2817123 Minor: Remove GenericOffset 2014-06-27 15:19:15 -04:00
Behdad Esfahbod 9da552dcc5 Minor: Remove some GenericXXX templates 2014-06-27 15:18:36 -04:00
Behdad Esfahbod df554af99d Rename search() to bsearch() and lsearch() 
Such that the complexity of the algorithm used is clear at
call site.
 2014-06-19 15:39:18 -04:00
Behdad Esfahbod 51f563579b Move try_set to sanitize context 2014-06-04 18:42:32 -04:00
Behdad Esfahbod dac86026a6 Fix some cppcheck warnings 
Bug 77800 - cppcheck reports
 2014-06-03 17:57:00 -04:00
Behdad Esfahbod e1ebf01d0c Minor 2013-11-26 18:00:35 -05:00
Behdad Esfahbod a182dbc9e4 Minor 2013-11-26 17:53:41 -05:00
Behdad Esfahbod 83408cf804 Fix llvm warnings on Mac 
Patch from Scott Fleischman.  Warnings were:

harfbuzz/src/hb-font-private.hh:121:42: Implicit conversion loses
integer precision: 'long long' to 'hb_position_t' (aka 'int')
harfbuzz/src/hb-font-private.hh:126:42: Implicit conversion loses
integer precision: 'long long' to 'hb_position_t' (aka 'int')
harfbuzz/src/hb-font-private.hh:400:85: Implicit conversion loses
integer precision: 'long long' to 'hb_position_t' (aka 'int')
harfbuzz/src/hb-ot-layout-common-private.hh:1115:37: Implicit conversion
loses integer precision: 'long long' to 'int'
harfbuzz/src/hb-ft.cc:421:97: Implicit conversion loses integer
precision: 'unsigned long long' to 'int'
harfbuzz/src/hb-ft.cc:422:97: Implicit conversion loses integer
precision: 'unsigned long long' to 'int'
 2013-11-06 14:46:04 -05:00
Behdad Esfahbod ba6ddc421e [otlayout] Increase MAX_CONTEXT_LENGTH 
It's cheap.
 2013-10-17 13:52:51 +02:00
Behdad Esfahbod 6b65a76b40 [otlayout] Fix (Chain)Context recursion! 
Previously we only supported recursive sublookups with
ascending indices.  We were also not correctly handling
non-1-to-1 recursed lookups.

Fix all that!

Fixes the three tests in test/shaping/tests/context-matching.tests,
which were derived from NotoSansBengali and NotoSansDevanagari
among others.
 2013-10-14 18:54:51 +02:00
Behdad Esfahbod 515a0ac81e Fix compiler warning 2013-08-09 09:40:59 -04:00
Behdad Esfahbod 625678436c Fix glyph closure with class==0 
As reported by cibu.  Untested.
 2013-08-05 22:44:18 -04:00
Behdad Esfahbod 48382e2f41 Minor 2013-07-30 18:25:39 -04:00
Behdad Esfahbod 797d76d07f Minor 2013-04-18 19:04:12 -04:00
Behdad Esfahbod 1ffd23cb47 [OTLayout] Limit alternate-location FeatureParams to 'size' feature 2012-12-17 23:29:15 -05:00
Behdad Esfahbod efe252e600 [OTLayout] Fix 'size' featureParams implementation 
Looks at alternate location now.
 2012-12-17 23:25:57 -05:00
Behdad Esfahbod 9b54562d63 [OTLayout] Towards correct FeatureParams handling 2012-12-17 13:55:36 -05:00
Behdad Esfahbod 87e43b7f2b [OTLayout] Wire tag and list start all the way to Feature 
To fix FeatureParam issues.  No actual fix yet, just plumbing.
 2012-12-14 17:48:23 -05:00
Behdad Esfahbod 0bae50a36f [OTLayout] Add FeatureParamsCharacterVariants struct 
No API yet.
 2012-12-11 16:29:24 -05:00
Behdad Esfahbod 875a5cbc9c [OTLayout] Change hb_ot_layout_get_params() API 
And add implementation for StylisticSet UINameID.  No API yet.
 2012-12-11 14:17:01 -05:00
Behdad Esfahbod f54cce3c6a [OTLayout] Implement 'size' feature 2012-11-26 14:02:31 +02:00
Behdad Esfahbod 2dc1141d7d [OTLayout] Remove operator() from ClassDef 2012-11-24 19:16:34 -05:00
Behdad Esfahbod b67881b171 [OTLayout] Remove operator() from Coverage 2012-11-24 19:13:55 -05:00
Behdad Esfahbod be218c688c Pass this object to trace macros 2012-11-23 15:32:14 -05:00
Behdad Esfahbod 7d52e6601f Whitespace 2012-11-16 18:49:54 -08:00