Commit Graph

497 Commits

Author SHA1 Message Date
Behdad Esfahbod 8c842e4a44 [hb-fuzzer] Get glyph extents for output glyphs
To exercise glyph-extents codepaths (glyf / CBLC+CBDT).
2016-12-04 20:28:38 -08:00
Behdad Esfahbod 9f6144cdb9 [CBDT] Add test for fetching glyph extents 2016-12-04 19:55:17 -08:00
Behdad Esfahbod d163cd9562 [tests] Add tests for vertical origin with ft and ot font-funcs 2016-10-26 18:27:48 +02:00
Frédéric Wang c3fa5d0e03 Remove inexistent file ttx file from test/api/Makefile.am 2016-10-24 21:42:04 +02:00
Behdad Esfahbod 34fc4a2cfa Fix dist 2016-10-04 14:47:12 -07:00
Behdad Esfahbod 46cc4a3a2a [MATH] Rename hb_math_*_t types to hb_ot_math_*_t
With this, I believe MATH table API is not ready to be merged.
2016-09-27 16:44:22 +02:00
Frédéric Wang 8d622f1114 Add tests for get_mathvariant (#329) 2016-09-27 13:53:34 +02:00
Frédéric Wang 485e4873fb Add tests for hb_ot_math_get_glyph_variants (#328) 2016-09-27 13:18:00 +02:00
Behdad Esfahbod a5629a2ed9 [MATH] Simplify test 2016-09-27 11:31:29 +02:00
Frédéric Wang edcfa789bf test-ot-math: Use different scales for vertical and horizontal directions and add test for hb_ot_math_get_min_connector_overlap. (#327) 2016-09-27 11:02:08 +02:00
Behdad Esfahbod cdc9eef7da [MATH] Enable tests for glyph-assembly italics-correction 2016-09-26 22:18:41 +02:00
Behdad Esfahbod 86106c7528 [MATH] Rename all API to hb_ot_math_* 2016-09-26 22:14:29 +02:00
Frédéric Wang 51da7a1cd6 MATH table: Add API to access math variants. 2016-09-26 15:18:16 +01:00
Frédéric Wang 722e620f20 Use G_TEST_DIST to build the path of math test fonts 2016-09-26 13:49:18 +01:00
Behdad Esfahbod 17ff30e9af [MATH] Clean up get_top_accent_attachment()
Note, the function now returns "half of horizontal advance width"
if top accent attachment for glyph is not explicitly defined.
This is what the spec requires.  Updated tests.
2016-09-26 12:21:27 +01:00
Behdad Esfahbod 8bcf517fe5 [MATH] Clean up get_italics_correction() 2016-09-26 12:13:14 +01:00
Frédéric Wang d7182d1296 MATH Table: Add API to access glyph info. 2016-09-26 11:32:25 +01:00
Frédéric Wang 319ff59161 MATH Table: Add API to access math contants. 2016-09-26 10:49:09 +01:00
Behdad Esfahbod 4d3892e9b0 [MATH] Fixups for previous commit 2016-09-26 10:45:58 +01:00
Frédéric Wang 5fbcb992bd MATH Table: Add API to check availability of math data. 2016-09-26 10:27:33 +01:00
Sascha Brawer e7ecbba2cc Support Americanist Phonetic Notation
OpenType language system tag: `APPH`
https://www.microsoft.com/typography/otspec/languagetags.htm

IETF BCP47 variant tag: `fonnapa`
http://www.iana.org/assignments/language-subtag-registry/language-subtag-registry
2016-08-18 14:13:26 +02:00
Behdad Esfahbod 18c19dd34d Fix build 2016-08-09 13:03:14 -07:00
Behdad Esfahbod 91f2585411 Actually add test 2016-08-08 18:08:08 -07:00
Behdad Esfahbod f1b76275da Add tests for Chinese language tags
Using font from https://github.com/behdad/harfbuzz/issues/300
2016-08-08 18:06:09 -07:00
Khaled Hosny 988350586f [tests] Workaround Python 2 “narrow” builds
The so-called Python 2 “narrow” builds support UCS2 only, this is a
workaround to allow unichr to work with any Unicode character in such
builds. This fixes Travis-CI failure as it has narrow Python 2 builds.

Copied from:
https://github.com/behdad/fonttools/blob/master/Lib/fontTools/misc/py23.py
2016-06-18 23:01:58 +02:00
Behdad Esfahbod 6c0aa9e92b Fix build on droid.io 2016-05-06 17:50:53 +01:00
Behdad Esfahbod 9b6312f945 [use] Update to draft spec from Andrew Glass from August 2015 2016-05-06 17:41:49 +01:00
Behdad Esfahbod 30e6e29f0f [indic/use] Move Javanese from Indic shaper to USE
Fixes https://github.com/behdad/harfbuzz/issues/243

With javatext.ttf, the reodering medial Ra gets its advance width
zero'ed in Uniscribe implementation, and the font adds the advance
back.  Our Indic shaper does not do that, but USE does.  So, route
Javanese through USE.  That's what Microsoft does anyway.  Test:

  U+A9A5,U+A9BA

This also seems to fix the following sequence, and variations thereof:

  U+A99F,U+A9C0,U+A9A2,U+A9BF
2016-05-06 15:52:27 +01:00
Behdad Esfahbod c6ee5f5f06 Add Javanese sample text 2016-05-06 15:39:02 +01:00
Behdad Esfahbod f8061ae797 [tests] Fix test 2016-05-02 10:28:24 +02:00
Behdad Esfahbod f00ab2a33a [hb-ot-font] Make 'glyf' table loading lazy
Apparently some clients have reference-table callbacks that copy the table.
As such, avoid loading 'glyf' table which is only needed if fallback positioning
happens.
2016-05-02 10:24:00 +02:00
Behdad Esfahbod f68390f196 [test] Add text for Tibetan shorthand contractions
From http://www.babelstone.co.uk/Tibetan/Contractions.html
2016-04-27 02:44:35 -07:00
Behdad Esfahbod b20305022a Do NOT ignore Mongolian Free Variation Selectors during matching
Fixes https://github.com/behdad/harfbuzz/issues/234
2016-04-26 16:41:17 -07:00
Behdad Esfahbod 6e55199b5f Add test for 6dd80faf0d 2016-04-04 16:24:27 -07:00
Behdad Esfahbod dd8598c1c7 [test] Pass closure to hb_font_set_glyph_func()
Exercises fix in c335fd7986
2016-02-25 11:20:05 +09:00
Behdad Esfahbod af48e3d27c Fix recent test
Not sure why the FT functions were returning advance 1024.  This
caused failure on drone.io.  Switch to hb-ot-font and disable
glyph names.
2016-02-24 16:06:40 +09:00
Behdad Esfahbod 17c8317017 [tests] Fix for multiple options in test runner scripts 2016-02-24 16:06:23 +09:00
Behdad Esfahbod ebd7431f82 Partially revert 86c68c7a2c
That commit moved the advance adjustment for mark positioning to
be applied immediately, instead of doing late before.  This breaks
if mark advances are zeroed late, like in Arabic.  Also, easier to
hit it in RTL scripts since a single mark with non-zero advance is
enough to hit the bug, whereas in LTR, at least two marks are needed.

This reopens https://github.com/behdad/harfbuzz/issues/211
The cursive+mark interaction is broken again.  To be fixed in a
different way.
2016-02-24 15:53:40 +09:00
Behdad Esfahbod 284481b312 Add test for mark positioning in rtl with non-zero mark advance
Apparently I broke this 86c68c7a2c.
Fix coming.
2016-02-24 15:52:37 +09:00
Behdad Esfahbod 56a84e8dd1 [tests] Allow commenting out tests to be skipped 2016-02-24 15:50:33 +09:00
Behdad Esfahbod 525cc7d28c Add note re only adding tests with Free Software fonts 2016-02-23 15:19:27 +09:00
Behdad Esfahbod 6a09d7e34b [test] Add README about how to add shaping tests 2016-02-23 13:47:16 +09:00
Behdad Esfahbod f8ee7906d0 Remove MANIFEST files
They are unused currently.  We can add later if we hook them up
to anything useful.
2016-02-23 13:45:38 +09:00
Behdad Esfahbod 815bdd7700 In cluster-level=0, group ZWJ/ZWNJ with previous cluster
This better emulates Unicode grapheme clusters.

Note that Uniscribe does NOT do this, but should be harmless with most clients,
and improve fallback with clients that use HarfBuzz cluster as unit of fallback.

Fixes https://github.com/behdad/harfbuzz/issues/217
2016-02-22 18:22:44 +09:00
Behdad Esfahbod c373155904 [fuzzing] Add test for recent fix
Test from https://github.com/behdad/harfbuzz/issues/223

I forgot that we do run hb-fuzzer on tests in shaping/tests/fuzzed.tests.
2016-02-19 15:13:07 +07:00
Behdad Esfahbod aa33cb72ab [fuzzing] Make test runner actually work 2016-02-19 15:12:53 +07:00
Behdad Esfahbod 2735555c6b [fuzzing] Add TODO item 2016-02-19 15:12:50 +07:00
Behdad Esfahbod 7e76bbabba [fuzzing] Make "make hb-fuzzer" build lib dependency
Not going to do with util/, but is convenient here.
2016-02-19 14:43:39 +07:00
Behdad Esfahbod da41e48f0a [USE] Zero mark advances by GDEF early
This is what Microsoft's implementation does.  Marks that need advance
need to add it back using 'dist' or other feature in GPOS.  Update tests to
match.
2016-02-16 17:16:33 +07:00
Behdad Esfahbod 86c68c7a2c [GPOS] Fix interaction of mark attachments and cursive chaining
Fixes https://github.com/behdad/harfbuzz/issues/211

What happens in that bug is that a mark is attached to base first,
then a second mark is cursive-chained to the first mark.  This only
"works" because it's in the Indic shaper where mark advances are
not zeroed.

Before, we didn't allow cursive to run on marks at all.  Fix that.
We also where updating mark major offsets at the end of GPOS, such
that changes in advance of base will not change the mark attachment
position.  That was superior to the alternative (which is what Uniscribe
does BTW), but made it hard to apply cursive to the mark after it
was positioned.  We could track major-direction offset changes and
apply that to cursive in the post process, but that's a much trickier
thing to do than the fix here, which is to immediately apply the
major-direction advance-width offsets...  Ie.:

https://github.com/behdad/harfbuzz/issues/211#issuecomment-183194739

If this breaks any fonts, the font should be fixed to do mark attachment
after all the advances are set up first (kerning, etc).

Finally, this, still doesn't make us match Uniscribe, for I explained
in that bug.  Looks like Uniscribe applies minor-direction cursive
adjustment immediate as well.  We don't, and we like it our way, at
least for now.  Eg. the sequence in the test case does this:

- The first subscript attaches with mark-to-base, moving in x only,
- The second subscript attaches with cursive attachment to first subscript
  moving in x only,
- A final context rule moves the first subscript up by 104 units.

The way we do, the final shift-up, also shifts up the second subscript
mark because it's cursively-attached.  Uniscribe doesn't.  We get:

[ttaorya=0+1307|casubscriptorya=0@-242,104+-231|casubscriptnarroworya=0@20,104+507]

while Uniscribe gets:

[ttaorya=0+1307|casubscriptorya=0@-242,104+-211|casubscriptnarroworya=0+487]

note the different y-offset of the last glyph.  In our view, after cursive,
things move together, period.
2016-02-16 16:07:20 +07:00