Commit Graph

152 Commits

Author SHA1 Message Date
jfkthame 100d40c827
[aat] Fix implementation of AAT kerning for Geeza Pro. (#2388)
* [aat] Fix implementation of AAT kerning for Geeza Pro.

Despite what the comment in the code used to say, it appears that Geeza Pro
does rely on accumulating kerning values from successive subtables. With
this change, the results now match Core Text rendering (and avoid the clear
visual breakage reported in #2358).

Testcase: U+0644,U+064E,U+0645,U+064E,U+0651,U+0627

Fixes #2358.

* [aat] Update test expectations, add new testcase.
2020-05-05 17:48:24 -07:00
Ebrahim Byagowi 0558413f27 Minor, tweak spaces 2019-10-01 13:50:11 +03:30
Ebrahim Byagowi d512087e4d Rename GlyphID to HBGlyphID
Avoid collision with macOS's ATSUnicodeTypes.h GlyphID
2019-09-14 11:55:53 +04:30
Behdad Esfahbod 5902198cee [kerx] Fix offset issue in kern format 2
Fixes tests with HB_VAR_ARRAY != 1, as done in previous commit.
2019-09-06 21:36:31 -04:00
Ebrahim Byagowi a0b4ac4dce Turn 8 spaces to tab across the project
According to the current code style of the project
2019-08-27 02:40:41 +04:30
Behdad Esfahbod 83e3eabd84 Whitespace 2019-05-07 20:58:43 -07:00
Behdad Esfahbod 41248cce0e Remove MIN/MAX in favor of hb_min/hb_max 2019-05-07 20:54:31 -07:00
Behdad Esfahbod 36bb24f7b4 [dispatch] Forward arguments in all dispatch multiplexers 2019-05-05 10:14:17 -07:00
Ebrahim Byagowi 92588782d7
Remove space between right angle brackets now that we have C++11 (#1689) 2019-04-30 13:05:10 -07:00
Behdad Esfahbod b976940243 [AAT] Handle transition errors during machine operation
Before we used to give up.  Now, just ignore error and continue processing.

Fixes https://github.com/harfbuzz/harfbuzz/issues/1531
2019-01-24 18:01:07 +01:00
Behdad Esfahbod 1ec90514f6 [AAT] Minor 2019-01-24 17:21:41 +01:00
Behdad Esfahbod 5d4b0377b9 Convert unsigned enum class consts to static constexpr
Part of https://github.com/harfbuzz/harfbuzz/issues/1553
2019-01-22 12:17:26 +01:00
Behdad Esfahbod ef00654962 Convert tag enum class consts to static constexpr
Part of https://github.com/harfbuzz/harfbuzz/issues/1553
2019-01-22 12:17:26 +01:00
Behdad Esfahbod 39e1b6d03f Convert boolean enum class consts to static constexpr
Part of https://github.com/harfbuzz/harfbuzz/issues/1553
2019-01-22 12:17:26 +01:00
Behdad Esfahbod 7e6bd510fc Use NNOffsetTo<> in rest of places 2019-01-17 18:24:18 -05:00
Behdad Esfahbod 347ad454b8 [AAT] Remove unused code 2019-01-17 17:47:29 -05:00
Behdad Esfahbod a262eb3d0b [aat] Minor 2019-01-17 14:06:32 -05:00
Ebrahim Byagowi e412008599 Remove redundant void from C++ sources (#1486) 2018-12-17 13:01:01 -05:00
Ebrahim Byagowi b2ebaa9afa Remove redundant 'inline' from methods (#1483) 2018-12-16 14:08:10 -05:00
Behdad Esfahbod 5c4fead734 Convert "static const hb_tag_t" constants to enum 2018-11-29 15:05:47 -05:00
Behdad Esfahbod 9e4138c825 Convert misc "static const" constants to enum 2018-11-29 15:01:10 -05:00
Behdad Esfahbod 44cbd2ea3d Convert "static const bool" constants to anonymous enum 2018-11-29 14:56:27 -05:00
Behdad Esfahbod 42a2b496e4 [kerx] Fix Format2 index calc again 2018-11-28 15:24:30 -05:00
Behdad Esfahbod a3267cf803 [kern] Fix kern table Format2 offsetToIndex
Fixes https://github.com/harfbuzz/harfbuzz/issues/1421
2018-11-28 15:06:01 -05:00
Behdad Esfahbod f9a9c0fd1e [kerx] Fix ClassTable implementation for 'kern' table Format 2 2018-11-28 14:51:56 -05:00
Behdad Esfahbod c5a6b355e1 [kerx] Port to hb_sanitize_with_object_t 2018-11-24 23:49:23 -05:00
Behdad Esfahbod b3c5affc05 Simplify sanitize set_object() 2018-11-24 23:34:34 -05:00
Behdad Esfahbod c8a2dc820e Revert "[aat.kerx] Remove kerx subtable boundary enforcement"
This reverts commit 15905a2a29.
2018-11-24 22:16:53 -05:00
Behdad Esfahbod 15905a2a29 [aat.kerx] Remove kerx subtable boundary enforcement
Have not encountered fonts needing this, but same reasoning as
for morx (see previos commit.)
2018-11-24 17:14:39 -05:00
Behdad Esfahbod 20edc70d53 [morx/kerx] Fix sanitize regression
Broke in 8dcc1913a1

If sanitizer is left with another object, it wouldn't work.

Better fix coming soon.
2018-11-24 14:53:05 -05:00
Behdad Esfahbod 8dcc1913a1 [kerx/morx] Make sure object length is sanitized before accessing it 2018-11-24 09:48:06 -05:00
Behdad Esfahbod 30cb45b3ea Change ArrayOf.bsearch() return semantics
Towards consolidating all array bsearch/...
2018-11-24 00:48:26 -05:00
Behdad Esfahbod 9552f4ef0d [kern] Don't enforce length of last subtable 2018-11-23 15:24:17 -05:00
Behdad Esfahbod 748962264a [aat] Disable mark advance zeroing if kern table has state-machines
Geeza Pro for example, relies on that for fancy mark positioning.

Fixes https://github.com/harfbuzz/harfbuzz/issues/1405
2018-11-23 11:10:17 -05:00
Behdad Esfahbod 758c9d68e2 [morx/kerx] Limit range to subtable when sanitizing 2018-11-22 22:16:12 -05:00
Behdad Esfahbod a9fe787a11 [sanitizer] Add reset_object(), make set_object() do bounds-check
Affects morx/kerx run-time only currently.  Will adjust their sanitize next.
2018-11-22 22:12:36 -05:00
Behdad Esfahbod 2c8188bf59 [kerx] Make sure subtables are non-zero-length
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11400
2018-11-22 22:02:19 -05:00
Behdad Esfahbod 274f4c726f Rename check_array2() to check_array() 2018-11-12 14:24:36 -05:00
Behdad Esfahbod c8f4cc4927 [kerx] Fix integer overflow in multiply
Fixes https://oss-fuzz.com/v2/testcase-detail/5754863779053568
2018-11-12 14:11:29 -05:00
Behdad Esfahbod 1300f027a9 [kerx] Minor tweak on previous commit 2018-11-12 13:56:48 -05:00
Behdad Esfahbod a549aa14a0 [kerx] Protect against stack underflow
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11367
2018-11-12 13:02:39 -05:00
Behdad Esfahbod 752bd8a192 [kerx] Fix Format1 tupleKern sanitization
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11312
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11305
2018-11-10 21:13:32 -05:00
Behdad Esfahbod b18a56a290 [kerx] Comment 2018-11-07 18:13:22 -05:00
Behdad Esfahbod 006386be3a [kern] Implement negative state numbers
Let the fuzzing bots rip this code apart...
2018-11-07 18:04:53 -05:00
Behdad Esfahbod 9af983af24 [kern] Switch to dispatch 2018-11-07 16:03:09 -05:00
Behdad Esfahbod bc06e2805a [kerx/kern] Add has_cross_stream() 2018-11-07 16:02:40 -05:00
Behdad Esfahbod ea579f9ccc [kerx] Fix peculiar indexing that was needed previously
Not needed now that we use GPOS attachment for cursive kerx.
2018-11-07 15:50:23 -05:00
Behdad Esfahbod 7a9629f2f1 [kerx] Implement CrossStream kerning for non-state-machine subtables
Untested.
2018-11-07 14:52:57 -05:00
Behdad Esfahbod 0eb4157011 [kerx] Disable backwards-kerning for non-state-machine tables
That's what the spec says for Backwards flag, only applicable to
formats 1 and 4.
2018-11-07 14:42:15 -05:00
Behdad Esfahbod b2f687c256 [kerx] Use GPOS attachment facilities for CrossStream kerning 2018-11-07 14:38:29 -05:00