Commit Graph

251 Commits

Author SHA1 Message Date
Behdad Esfahbod c0a6814b49 Touch up new API
New API:
+hb_ot_layout_feature_get_name_ids()
+hb_ot_layout_feature_get_characters()
2018-10-12 16:06:39 -04:00
Ebrahim Byagowi dc49bd8d81 Add two APIs for getting stylistic set labels
* hb_ot_layout_feature_get_characters
* hb_ot_layout_feature_get_name_ids

However HarfBuzz currently doesn't expose an API for retrieving the actual
information associated with NameId from the `name` table and that should be
done separately.
2018-10-12 16:06:39 -04:00
David Corbett 28d091d045 Parse Indic3 tags 2018-10-11 17:44:13 -04:00
Behdad Esfahbod 1d995a340b Minor 2018-10-11 15:42:54 -04:00
Behdad Esfahbod 57b05210b1 [test] Fix use of deprecated symbols 2018-10-11 15:03:21 -04:00
David Corbett 7f1fbfe2e3 Add hb_ot_tags_to_script_and_language 2018-10-11 13:54:28 -04:00
David Corbett 7c7cb2a989 Match extlang subtags
If the second subtag of a BCP 47 tag is three letters long, it denotes
an extended language. The tag converter ignores the language subtag and
uses the extended language instead.

There are some grandfathered exceptions, which are handled earlier.
2018-10-11 13:54:28 -04:00
David Corbett 2f1f961cc0 Autogenerate the BCP 47 to OpenType mappings
The new script, gen-tag-table.py, generates `ot_languages` automatically
from the [OpenType language system tag registry][ot] and the [IANA
Language Subtag Registry][bcp47] with some manual modifications. If an
OpenType tag maps to a BCP 47 macrolanguage, all the macrolanguage's
individual languages are mapped to the same OpenType tag, except for
individual languages with their own OpenType mappings. Deprecated
BCP 47 tags are canonicalized.

[ot]: https://docs.microsoft.com/en-us/typography/opentype/spec/languagetags
[bcp47]: https://www.iana.org/assignments/language-subtag-registry/language-subtag-registry

Some OpenType tags correspond to multiple ISO 639 codes. The mapping
from ISO 639 codes lists OpenType tags in priority order, such that more
specific or more likely tags appear first.

Some OpenType tags have no corresponding ISO 639 code in the registry so
their mappings use BCP 47 subtags besides the language. For example, any
BCP 47 tag with a fonipa variant subtag is mapped to 'IPPH', and 'IPPH'
is mapped back to und-fonipa.

Other OpenType tags have no corresponding ISO 639 code because it is not
clear what they are for. HarfBuzz just ignores these tags.

One such ignored tag is 'ZHP ' (Chinese Phonetic). It probably means
zh-Latn. However, it is used in Microsoft JhengHei and Microsoft YaHei
with the script tag 'hani', implying that it is not a romanization
scheme after all. It would be simple enough to add this mapping to
gen-tag-table.py once a definitive mapping is determined.

The manual modifications are mainly either obvious mappings that the
OpenType registry omits or mappings for compatibility with previous
versions of HarfBuzz. Some of the old mappings were discarded, though,
for homophonous language names. For example, OpenType maps 'KUI ' to
kxu; previous versions of HarfBuzz also mapped it to kvd, because kvd
and kxu both happen to be called "Kui".

gen-tag-table.py also generates a function to convert multi-subtag tags
like el-polyton and zh-HK to OpenType tags, replacing `ot_languages_zh`
and the hard-coded list of special cases in `hb_ot_tags_from_language`.
It also generates a function to convert OpenType tags to BCP 47,
replacing the hard-coded list of special cases in
`hb_ot_tag_to_language`.
2018-10-11 13:54:28 -04:00
David Corbett 91067716f5 Refactor the selection of script and language tags
The old hb-ot-tag.cc functions, `hb_ot_tags_from_script` and
`hb_ot_tag_from_language`, are now wrappers around a new function:
`hb_ot_tags`. It converts a script and a language to arrays of script
tags and language tags. This will make it easier to add new script tags
to scripts, like 'dev3'. It also allows for language fallback chains;
nothing produces more than one language yet though.

Where the old functions return the default tags 'DFLT' and 'dflt',
`hb_ot_tags` returns an empty array. The caller is responsible for
using the default tag in that case.

The new function also adds a new private use subtag syntax for script
overrides: "x-hbscabcd" requests a script tag of 'abcd'.

The old hb-ot-layout.cc functions,`hb_ot_layout_table_choose_script` and
`hb_ot_layout_script_find_language` are now wrappers around the new
functions `hb_ot_layout_table_select_script` and
`hb_ot_layout_script_select_language`. They are essentially the same as
the old ones plus a tag count parameter.

Closes #495.
2018-10-11 13:54:28 -04:00
Behdad Esfahbod 1e8fdd285f Remove HAVE_OT
We never tested compiling without it.  Just kill it.  We always build
our own shaper.
2018-10-10 16:32:35 -04:00
Behdad Esfahbod be2f148da4 [ft] Use mutex to lock access to FT_Face
Makes our FT-backed hb_font_t safe to use from multiple threads.  Still,
the underlying FT_Face should NOT be used from other threads by client
or other libraries.

Maybe I add a lock()/unlock() public API ala PangoFT2 and cairo-ft.
Maybe not.
2018-10-09 16:24:50 -04:00
Behdad Esfahbod 9f79365c3b Fix warning
How come this one is not generated by clang everything bot?!

../../../test/api/test-multithread.c:37:26: warning: initialization discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
 static char *font_path = "fonts/Inconsolata-Regular.abc.ttf";
                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../../test/api/test-multithread.c:38:21: warning: initialization discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
2018-10-09 14:36:25 -04:00
Chun-wei Fan 4035158de4 test/api/test-subset-*.c: Fix build on pre-C99
Ensure that we have the variables at the beginning of the block.  These
are the only fixes that we need for building HarfBuzz on older
compilers.
2018-10-09 09:43:36 -04:00
Behdad Esfahbod eb2be97f86 Port test off deprecated API 2018-10-09 07:48:52 -04:00
Behdad Esfahbod a353c1768d Remove test for deprecated hb_set_invert() 2018-10-09 01:05:28 -04:00
Behdad Esfahbod fc50916589 Remove deprecated decompose_compatibility stuff 2018-10-09 00:39:42 -04:00
Behdad Esfahbod eed737f672 Remove deprecated eastasian_width 2018-10-09 00:37:10 -04:00
Behdad Esfahbod f92330b5e0 Minor 2018-10-07 17:51:50 +02:00
Ebrahim Byagowi 4146c00caa
[test] Use an in-repo font for test-multithread (#1218)
As Khaled's suggestion, hard-coded font paths was only for my own testing.
2018-10-03 21:26:58 +03:30
lantw44 7a1ab0464d Fix test-multithread build on FreeBSD (#1217)
Add the default font path used by FreeBSD ports.
2018-10-03 18:52:43 +03:30
Ebrahim Byagowi bf5088b3dc
Minor, fix -Weverthing bot warnings (#1210) 2018-10-02 11:07:06 +03:30
Behdad Esfahbod dcfcb950b8 [test] Fix -Wunused-parameter warnings 2018-09-30 18:14:50 +02:00
Behdad Esfahbod be0b2ed316 More warning fixes 2018-09-30 18:02:04 +02:00
Ebrahim Byagowi cefdef0247
Minor on test-multithread, align the actual and expected results 2018-09-29 10:19:54 +03:30
Behdad Esfahbod c763b94401 [test-multithread] Disable FreeType funcs 2018-09-28 20:53:23 -04:00
Ebrahim Byagowi 7b68edf2ab
[tests] Don't try to get glyph names on failures
As it may cause a race unrelated to the issue actually happened
2018-09-28 20:53:48 +03:30
Behdad Esfahbod 33231a855f Fix pthread fail for real
Using a hack...
2018-09-28 11:06:49 -04:00
Behdad Esfahbod 8cb8209c91 Fix bot fails 2018-09-28 10:55:28 -04:00
Behdad Esfahbod 4cd342baea Fix ubsan bot 2018-09-28 09:47:45 -04:00
Behdad Esfahbod 7e6e094abd [test-multithread] Install ot funcs before filling ref buffer 2018-09-28 08:45:57 -04:00
Behdad Esfahbod 21fbee831e [test-multithread] Take num-threads and num-iters from command-line 2018-09-28 08:43:37 -04:00
Behdad Esfahbod 598be3bb38 Minor 2018-09-28 08:43:15 -04:00
Ebrahim Byagowi c09bf3d505
test-multithread, check the results on every iteration (#1194) 2018-09-28 16:13:01 +03:30
Ebrahim Byagowi dbc3070a15
Make test-multithread pass the tsan bot test (#1193) 2018-09-28 16:01:15 +03:30
Behdad Esfahbod d183b33c1d Rename test 2018-09-26 16:40:59 -04:00
Ebrahim Byagowi 39da1914b4
Test freetype funcs on test-multithread (#1187) 2018-09-26 23:32:45 +03:30
Ebrahim Byagowi e88009a93f
Minor, remove the no longer needed comment on test-multithread 2018-09-26 22:53:02 +03:30
Behdad Esfahbod 34d5a25953 Fix test-multithread and increase num_threads to 30
What were you thinking? ;)
2018-09-26 15:02:21 -04:00
Ebrahim Byagowi 8bb73dad7f
Add a multithreaded test (#1184) 2018-09-26 20:50:51 +03:30
Behdad Esfahbod d07f3111b4 Link API test programs with C++ linker
Needed to make ubsan work.

Fixes https://github.com/harfbuzz/harfbuzz/issues/1174
2018-09-24 13:01:35 -04:00
Ebrahim Byagowi 403019482b
Fix test-subset-* leak issues
See also https://github.com/harfbuzz/harfbuzz/pull/1169
2018-09-22 17:24:03 +03:30
Ebrahim Byagowi f6ebe1f4dc
Fix test-ot-math leak issue
See also https://github.com/harfbuzz/harfbuzz/pull/1169
2018-09-22 17:05:52 +03:30
Ebrahim Byagowi 669ac81ac5
Fix test-set leak issue
See also https://github.com/harfbuzz/harfbuzz/pull/1169
2018-09-22 16:49:23 +03:30
Ebrahim Byagowi ef9307fd22
Fix test-font leak issue
See also https://github.com/harfbuzz/harfbuzz/pull/1169
2018-09-22 16:45:31 +03:30
Garret Rieger 21bf147054 [subset] Fix hdmx subsetted size calculation. 2018-09-05 19:31:55 -07:00
Behdad Esfahbod 93fe0faaee [subset] Clean up hb_subset_input_t API 2018-08-29 18:24:03 -07:00
Behdad Esfahbod f39166f0c0 [subset] Remove unused hb_subset_profile_t
We might reintroduce it later, but for now remove, as it was unused.
Some things that should have been in this object (drop_hints, etc)
are already in hb_subset_input_t.  So, for now, keep everything there.
2018-08-29 18:09:55 -07:00
Behdad Esfahbod dae39c58fb [face] Introduce character-map API
New API:
+hb_face_collect_unicodes
+hb_face_collect_variation_selectors
+hb_face_collect_variation_unicodes
2018-08-25 22:44:39 -07:00
Behdad Esfahbod c77ae40852 Rename hb-*private.hh to hb-*.hh
Sorry for the noise, downstream custom builders.  Please adjust.
2018-08-25 22:36:36 -07:00
Behdad Esfahbod d60c465627 Rename get_all_codepoints() to collect_unicodes() 2018-08-25 08:48:42 -07:00