Commit Graph

74 Commits

Author SHA1 Message Date
Behdad Esfahbod a71b9c8579 Disable 'cswh' by default except for Arabic shaper
That better matches OpenType spec.  Note that we enable it for all
Arabic-shaper scripts.  Ie. we enable it by default for Syriac too,
but the SyriacOT spec does not require it.  I think this is a more
useful compromise than special-casing for Arabic script alone.
2011-04-06 14:04:56 -04:00
Behdad Esfahbod 3286fc0e9a Let hb_shape() guess script and direction...
- Rename HB_SCRIPT_INVALID_CODE to HB_SCRIPT_INVALID

- Add HB_DIRECTION_INVALID

- Make hb_script_get_horizontal_direction() public

- Make hb_shape() guess script from buffer text (first non-common
  non-inherit script) if buffer script is set to HB_SCRIPT_INVALID (this
  is NOT the default.)

- Make hb_shape() guess direction from buffer script if buffer direction
is set to HB_DIRECTION_INVALID (this is NOT the default.)

- Make hb-view.c set INVALID script and direction on the buffer.

The above changes are meant to make hb-view fairly useful for uni-script
uni-direction text.  The guessing behavior however is NOT the default of
hb_shape() and must be asked for explicitly.  This is intended, because
the guess is not a suitable substitute to full-fledged bidi and script
segmentation.  It's just a testing tool.
2011-03-16 14:53:32 -03:00
Behdad Esfahbod bbbbe80ec9 Rename original_direction to target_direction 2010-12-07 16:22:02 -05:00
Behdad Esfahbod ee8aaf976a Fix arabic shaping of LTR text
We should ensure-direction before doing any complex work.  The only
exception is mirroring that needs to see the original / final direction,
not the native.  Handle that.
2010-12-07 16:20:42 -05:00
Behdad Esfahbod 3a852ae7fe Save general category and combining class in the buffer for reuse 2010-11-03 16:37:24 -04:00
Behdad Esfahbod 1e7c1fcbc3 Move code around 2010-11-02 19:12:59 -04:00
Behdad Esfahbod 98370e89d1 WIP removing external synthesized GDEF support and implementing it internally 2010-11-02 19:12:58 -04:00
Behdad Esfahbod dd2ffd282c Minor renaming 2010-11-02 19:12:58 -04:00
Behdad Esfahbod 248e3c2ba4 Oops, remove extra mask setting that broke complex shaping 2010-10-27 01:23:14 -04:00
Behdad Esfahbod 502f4cba3e Divide get_metrics into get_advance and get_extents
Graphite module not updated.
Bump version to 0.3.
2010-10-27 01:13:56 -04:00
Behdad Esfahbod bd7378b2ef Massage mask setting a bit more
Still finding the exact correct way the masks should be set.
2010-10-13 18:33:16 -04:00
Behdad Esfahbod 39dede9fff Make sure boolean features always use value=1
Previously boolean features turned on the entire feature mask.  This is
wrong if feature is Alternate and user has provided values bigger than one.
Though, I don't think other engines support such corner cases.
2010-10-13 15:54:06 -04:00
Behdad Esfahbod 2989be4919 Set user masks after complex masks 2010-10-13 15:18:29 -04:00
Behdad Esfahbod 13403bc67a Hookup Arabic shaper!
Not tested yet.
2010-10-12 17:23:54 -04:00
Behdad Esfahbod 57ac0ecb78 Merge clearing masks and setting global masks 2010-10-12 17:07:02 -04:00
Behdad Esfahbod fc96596b7c Form clusters before setting masks 2010-10-12 17:00:40 -04:00
Behdad Esfahbod 1e80782244 Clear masks before setting them up, not after! 2010-10-12 17:00:07 -04:00
Behdad Esfahbod fd3d32d31c Add hb_ot_shape_execute()
Not public yet.
2010-10-12 16:57:47 -04:00
Behdad Esfahbod 49baa1f69e Add hb_ot_complex_shaper_t stuff and start hooking Arabic shaper up 2010-10-12 16:50:36 -04:00
Behdad Esfahbod 605ed468f3 Add hb_ot_shape_plan_t
This is the object that a separate plan/execute shaping API will use in
between the two stages.
2010-10-12 16:19:38 -04:00
Behdad Esfahbod 895fb5d364 Refactor, in a different direction 2010-10-12 16:00:21 -04:00
Behdad Esfahbod d2ba016ca1 More refactoring 2010-10-12 15:35:45 -04:00
Behdad Esfahbod 52601275d5 More separation 2010-10-08 20:38:46 -04:00
Behdad Esfahbod 6b7e675862 Minor 2010-10-08 20:30:04 -04:00
Behdad Esfahbod aa9c450bb2 Enable 'rtlm' mirroring 2010-10-08 20:27:38 -04:00
Behdad Esfahbod 36925f695d Rename hb_mask_allocator_t to hb_ot_map_t
hb_ot_plan_t may be a better name, donno.
2010-10-08 20:21:09 -04:00
Behdad Esfahbod 4924affe0f Add hb-ot-map-private.hh 2010-10-08 19:18:16 -04:00
Behdad Esfahbod b897c607d9 Flip the OT bit-allocation vs gsub/gpos inside-out
We now build our entire attack plan before jumping in.
2010-10-08 18:41:57 -04:00
Behdad Esfahbod e89b7d2a61 Logically separate feature collection 2010-10-08 12:29:59 -04:00
Behdad Esfahbod 5b88908f12 Minor 2010-10-08 12:23:01 -04:00
Behdad Esfahbod 5360ce0c5c Move some more code around 2010-10-07 21:21:11 -04:00
Behdad Esfahbod d9c7260788 Minor 2010-10-07 21:19:54 -04:00
Behdad Esfahbod efe0d682e8 Simplify compiling lookups 2010-10-07 21:12:46 -04:00
Behdad Esfahbod 476c94218b Rename 2010-10-07 17:47:33 -04:00
Behdad Esfahbod 98aa3f6544 Call hb_ot_shape_setup_lookups_complex() 2010-10-06 00:23:36 -04:00
Behdad Esfahbod f1d07885dc Rename setup_lookups() 2010-10-06 00:21:37 -04:00
Behdad Esfahbod affc5abac7 Move table_tag to hb_ot_shape_context_t 2010-10-06 00:18:16 -04:00
Behdad Esfahbod 967240dd8b Add internal hb_ot_shape_context_t 2010-10-05 23:00:05 -04:00
Behdad Esfahbod 4e573715ae Improve cmp function parameter namings and casts
No semantic change.
2010-09-28 16:28:57 -04:00
Behdad Esfahbod 2422c4b96d Add TODO 2010-08-13 14:00:34 -04:00
Behdad Esfahbod 27f0b092a1 Logically separate feature allocation from application 2010-07-23 17:35:54 -04:00
Behdad Esfahbod 6cf63132dc Minor 2010-07-23 17:32:26 -04:00
Behdad Esfahbod 4e4ef24e46 Towards separating bit allocation from shaping 2010-07-23 17:22:11 -04:00
Behdad Esfahbod acdba3f90b Prefer C linkage 2010-07-23 15:39:27 -04:00
Behdad Esfahbod f2a1b411b1 Followup fix for variation-selectors
Patch from Jonathan Kew
2010-06-03 11:37:51 -04:00
Behdad Esfahbod a224b4d502 Fix skipping variation-selectors 2010-06-02 22:31:41 -04:00
Behdad Esfahbod 81a77b115d Make feature sorting stable 2010-06-01 23:03:54 -04:00
Behdad Esfahbod fdc322a820 Minor 2010-05-28 20:55:52 -04:00
Behdad Esfahbod f062ec6bb2 Further simplify mask allocator 2010-05-28 20:54:43 -04:00
Behdad Esfahbod 8af45fda47 Fix global feature handling 2010-05-28 20:41:20 -04:00