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83 Commits

Author SHA1 Message Date
Behdad Esfahbod b0ff79acd8 Add +hb_font_get_glyph_advances_for_direction 
New API:
+hb_font_get_glyph_advances_for_direction
 2018-08-07 09:52:06 -07:00
Behdad Esfahbod 996775191a Minor 2018-08-07 09:44:36 -07:00
Behdad Esfahbod 79e21984b1 Add batch advance width callback function 
New API:
+hb_font_funcs_set_glyph_h_advances_func
+hb_font_funcs_set_glyph_v_advances_func
+hb_font_get_glyph_h_advances
+hb_font_get_glyph_h_advances_func_t
+hb_font_get_glyph_v_advances
+hb_font_get_glyph_v_advances_func_t
 2018-08-06 09:45:17 -07:00
Koji Ishii 9533364cc3 batchwidth 2018-08-06 09:44:46 -07:00
Behdad Esfahbod 3506672ce9 Port _nil objects to Null() machinery 
Finally, unified!
 2018-08-06 06:17:48 -07:00
Behdad Esfahbod be458eb059 Include more basic internal headers from hb-private.hh 2018-07-10 14:41:04 +02:00
Behdad Esfahbod 8c9451107d Fix one UBSan warning 
Fixes https://github.com/harfbuzz/harfbuzz/issues/935
 2018-03-28 14:06:58 -07:00
Behdad Esfahbod 188ee6e5ee Calculate anchor positions in float, then round 
Hoping to reduce rounding error, to make tests happier...
No luck.
 2018-01-10 05:13:47 +01:00
Behdad Esfahbod 7cdd6ab068 Round, instead of floor, when applying variations 
Hoping this would fix remaining text-rendering-tests failures,
but so far no luck.
 2018-01-10 04:44:33 +01:00
Behdad Esfahbod c0c2dbc871 Remove dirty tracking 
Turns out I don't need this to resolve CoreText optical sizing
issue after all.

https://github.com/behdad/harfbuzz/issues/360
 2017-10-11 12:23:35 +02:00
Behdad Esfahbod b57f18da70 Add hb_font_[sg]et_ptem() to set/get point size on font 
New API:
hb_font_set_ptem()
hb_font_get_ptem()

Needed for hb-coretext optical sizing:
https://github.com/behdad/harfbuzz/issues/360
 2017-10-11 11:47:47 +02:00
Behdad Esfahbod 587f15ece3 Minor 2017-08-14 15:23:10 -07:00
Behdad Esfahbod 2171f48b4b Add dirty-state tracking to hb_font_t 2017-02-03 10:58:09 -08:00
Behdad Esfahbod 26648cebcd [GX] Remove (partial) support for anisotropic variations 
It doesn't always work, not part of FreeType, and we were not going
to expose it in the API anyway.  Can always be added later.
 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 2b117720c0 Use horizontal ascent as fallback vertical origin 2016-10-26 18:12:50 +02:00
Behdad Esfahbod a7b32f2057 Move code around 2016-10-26 18:08:41 +02:00
Behdad Esfahbod 9ee23c49a7 Fix vertical glyph origin with hb-ot-font 2016-10-26 18:01:24 +02:00
Behdad Esfahbod b3b0816d5f Fix vertical font metrics 
Ouch!
 2016-10-26 18:01:20 +02:00
Behdad Esfahbod 353f455af7 [MATH] Wire up get_glyph_variants() 2016-09-26 21:25:00 +02:00
Behdad Esfahbod 7fe0e28c22 [MATH] Start fleshing out glyph variant API 2016-09-26 17:51:47 +01:00
Behdad Esfahbod 4b8de1ea80 Round, not truncate, when scaling values 
Fixes https://github.com/behdad/harfbuzz/issues/255
 2016-06-06 23:08:54 -07:00
Behdad Esfahbod 8b5bc141cd Add get_nominal_glyph() and get_variation_glyph() instead of get_glyph() 
New API:
- hb_font_get_nominal_glyph_func_t
- hb_font_get_variation_glyph_func_t
- hb_font_funcs_set_nominal_glyph_func()
- hb_font_funcs_set_variation_glyph_func()
- hb_font_get_nominal_glyph()
- hb_font_get_variation_glyph()

Deprecated API:
- hb_font_get_glyph_func_t
- hb_font_funcs_set_glyph_func()

Clients that implement their own font-funcs are encouraged to replace
their get_glyph() implementation with a get_nominal_glyph() and
get_variation_glyph() pair.  The variation version can assume that
variation_selector argument is not zero.
 2016-02-24 19:05:23 +09:00
Steven R. Loomis a13b023dbf AIX fixes 
- use '-w' instead of '\<...\>' for check-header-guards
  grep manpage says these are the same

- put '-q' first in the grep options

- move VAR into hb-private.hh

- hb-font-private.hh - use [VAR] instead of [] for variable array
 2015-12-12 17:44:44 -08:00
Simon Cozens 6f2e6de1fa Get font ascender and descender metrics from OS/2 table. 2015-11-27 16:03:54 -05:00
Behdad Esfahbod ea512f7108 Use C-style casts instead of compare to 0, to convert hb_bool_t to bool 2015-11-26 19:22:22 -05:00
Behdad Esfahbod 28de104f15 Move variable-sized struct member to end 
Hopefully makes clang build happy
 2015-11-04 22:03:09 -08:00
Behdad Esfahbod 762770c964 Add font->has_...() to check for individual nil font funcs 
Hopefully this wouldn't break any compiler.  There was some magic
moments to getting this to compile...
 2015-11-04 21:49:19 -08:00
Behdad Esfahbod 88e9a9bcae Minor reshaping of hb_font_funcs_t implementation 
In anticipation of further changes.  No functional changes.
 2015-11-04 21:16:26 -08:00
Behdad Esfahbod a6a7715bac Comments 2015-11-04 20:51:21 -08:00
Behdad Esfahbod bee901b38e Optimize positioning direction calculations 
It makes the binary smaller AND faster.  Yumm!
 2015-11-04 19:28:17 -08:00
Behdad Esfahbod 50f489a0a0 Typo 2015-10-11 20:59:29 -04:00
Behdad Esfahbod 8de20b1e8a Add font->has_glyph() 2014-01-02 14:30:45 +08:00
Behdad Esfahbod 2a8c49ade0 Remove unnecessary includes 2013-12-11 20:24:20 -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 288f289997 [docs/introspection] More annotations 2013-09-06 17:30:54 -04:00
Behdad Esfahbod 5a5350b39b Revert "Round when scaling values" 
This reverts commit 10f964623f.

See discussion with Khaled Hosny on mailing list.  In short, since
integers here can be negative, and int division is "round towards
zero", proper rounding should take sign into account.  Just skip
doing it again, has been serving us well before.
 2013-09-03 20:11:01 -04:00
Behdad Esfahbod 2e3a07abdf Separate face source code from font 
Makes documentation / introspection easier.
 2013-08-27 11:46:08 -04:00
Behdad Esfahbod 38b8b40526 Fix possible snprintf OOM 
https://bugzilla.redhat.com/show_bug.cgi?id=1001645
 2013-08-27 11:46:07 -04:00
Behdad Esfahbod 10f964623f Round when scaling values 
Doesn't matter for most users since they should be working in a
fixed sub-pixel scale anyway (ie. 22.10, 26.6, 16.16, etc).
 2013-08-09 09:40:01 -04:00
Behdad Esfahbod df8f70ae5d Minor 2013-08-09 09:35:10 -04:00
Behdad Esfahbod ce8badf180 Minor 2013-08-09 09:31:06 -04:00
Behdad Esfahbod 7235f33f9e Fix misc warnings reported by cppcheck 
https://bugs.freedesktop.org/show_bug.cgi?id=65544
 2013-06-10 15:08:49 -04:00
Behdad Esfahbod e05a999495 Add hb_face_[sg]et_glyph_count() 2012-11-15 16:23:21 -08:00
Behdad Esfahbod 4c8ac4f47e Misc minor fixes 2012-08-08 17:44:19 -04:00
Behdad Esfahbod 6f3a300138 Add hb_font_glyph_from/to_string 2012-08-07 22:13:25 -04:00
Behdad Esfahbod 8fbfda920e Inline font getters 2012-08-01 19:03:46 -04:00
Behdad Esfahbod 2f87cebe10 Implement shape_plan caching 
Should give us some performance boost.
 2012-07-27 04:20:39 -04:00
Behdad Esfahbod ea278d3895 Partially switch ot shaper to shape_plan 2012-07-27 02:12:28 -04:00