Commit Graph

201 Commits

Author SHA1 Message Date
Behdad Esfahbod f6fd3780e1 Let shapers decide when to apply ccmp and locl
Instead of always applying those two features before the complex shaper,
let the complex shaper decide whether they should be applied first.

Also add stub for Indic's final_reordering().
2011-07-08 00:22:40 -04:00
Behdad Esfahbod c4641723fb [API] Add compose() and decompose() unicode funcs, rename other ones
Add compose() and decompose() unicode funcs.  These implement
pair-wise canonical composition/decomposition.

The glib/icu implementations are lacking for now.  We are adding
API for this to glib, but I cannot find any useful API in ICU.
May end of implementing these in-house.

Changed all unicode_funcs callback names to remove the "_get" part.
Eg, hb_unicode_get_script_func_t is now hb_unicode_script_func_t,
and hb_unicode_get_script() is hb_unicode_script() now.
2011-07-08 00:09:31 -04:00
Behdad Esfahbod 891c4755ba Humm, undo some shuffling
In preparation for adding more advanced unicode funcs.
2011-07-07 23:27:27 -04:00
Behdad Esfahbod 76f76812ac Shuffle code around, remove shape_plan from complex shapers 2011-07-07 22:25:25 -04:00
Behdad Esfahbod 359dcaa0d3 Update copyright headers 2011-07-07 21:55:05 -04:00
Behdad Esfahbod b9452bfc16 Fix compiler warnings with -pedantic 2011-06-14 14:47:07 -04:00
Behdad Esfahbod 63b177e45c Minor 2011-06-07 15:51:40 -04:00
Behdad Esfahbod 89a2bc9ba6 [Vertical] Apply vertical features
We apply all of vert, vrt2, vkrn, valt, and vpal.
2011-05-31 15:18:13 -04:00
Behdad Esfahbod 90645fb24b [OT] Separate map_builder from the actual map
Respectively, separate planner from the actual plan.
2011-05-27 18:13:31 -04:00
Behdad Esfahbod 376dafa6ed Hide internal symbols 2011-05-27 03:40:04 -04:00
Behdad Esfahbod 7403e055cd [Vertical] fix vertical gpos
Wow, it took me a few days to find the right fix!

We now set the advance for attached marks to zero, but we
do this in the _finish() state of gpos, so it shouldn't
regress with fonts like DejaVuSansMono that explicitly
decrease the mark advance width to set it to zero.
2011-05-25 10:52:15 -04:00
Behdad Esfahbod 60fbb36096 [Vertical] GPOS is always done with horizontal origin 2011-05-19 18:46:15 -04:00
Behdad Esfahbod 8b38faeede More vertical
Starting to get there, but not without yet another round of changes.

I think I know wheere to go now.
2011-05-19 13:08:00 -04:00
Behdad Esfahbod 7e2c85de30 [API] Vertical support, take 2
I like this API *much* better.  Implementation still incomplete, but
horizontal works.
2011-05-17 17:55:03 -04:00
Behdad Esfahbod 744970af4d [API] Add support for vertical text
Design not final yet, and in fact I'm going to change it immediately,
but this is an standalone change for itself.
2011-05-17 17:12:34 -04:00
Behdad Esfahbod 0fd8c2f1be [API] Make get_glyph() callback return a boolean
We need to know whether the glyph exists, so we can fallback to
composing / decomposing.  Assuming that glyph==0 means "doesn't exist"
wouldn't work for applications like Pango that want to use different
"doesn't exist" glyph codes for different characters.  An explicit
return value fixes that.
2011-05-12 15:14:13 -04:00
Behdad Esfahbod e06d4eda7b Use constructor/destructor for hb_ot_shape_plan_t 2011-05-11 22:18:31 -04:00
Behdad Esfahbod 6a7ac79e26 Plug leaks 2011-05-11 14:19:18 -04:00
Behdad Esfahbod a513dbcf73 [API] Change signature of get_contour_point and get_kerning ffuncs
get_contour_point now takes glyph id before point_index.

get_kerning now takes a vector to fill-in.
2011-05-11 00:38:22 -04:00
Behdad Esfahbod 6843569d2c Replace fixed-size feature_maps array with hb_array_t 2011-05-05 14:30:51 -04:00
Behdad Esfahbod 72657e4ce7 [API] Make hb_font_create() take a face and reference it 2011-05-02 20:47:23 -04:00
Behdad Esfahbod 2409d5f8d7 Update Copyright headers 2011-04-21 17:14:28 -04:00
Behdad Esfahbod fb194b8794 unicode: Cleanup implementation 2011-04-20 02:27:39 -04:00
Ryan Lortie 2fd0c577e3 [API] unicode: rework virtual functions for subclassing
Unicode data providers can now be subclassed, including support for
chain-up.  The interface should now be nicely bindable, as well.

Also fix glib unicode funcs that where broken after hb_script_t
changes.  Nicely caught by the test-unicode.c added in this commit.
2011-04-20 00:19:20 -04:00
Behdad Esfahbod 8f0d7e0c3f Remove hb_buffer_clear_positions(), add hb_ot_layout_position_start() 2011-04-15 19:08:43 -04:00
Behdad Esfahbod 5814dfa3f5 Cosmetic 2011-04-15 14:41:04 -04:00
Behdad Esfahbod 99b74760a4 Rename hb_category_t to hb_unicode_general_category_t 2011-04-11 15:47:40 -04:00
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
Behdad Esfahbod e04685ee7b Simplify mask allocation 2010-05-28 20:37:06 -04:00
Behdad Esfahbod 0e235d0fc9 Towards a mask allocator 2010-05-28 20:27:30 -04:00
Behdad Esfahbod 81c5e8724b Allow disabling default features
Patch from Jonathan Kew
2010-05-28 18:31:16 -04:00
Behdad Esfahbod 15c7379c16 Revert "Merge remote branch 'martin/master'"
This reverts commit 80af2812fb, reversing
changes made to c442672ec2.
2010-05-26 10:48:10 -04:00
Behdad Esfahbod 80af2812fb Merge remote branch 'martin/master' 2010-05-24 18:14:24 +01:00
Behdad Esfahbod bf36a1074a Move all callback functions in a vtable structs 2010-05-24 17:46:21 +01:00
Martin Hosken 72631c9d06 Merge branch 'master' of git://git.freedesktop.org/~behdad/harfbuzz-ng 2010-05-22 09:38:02 +01:00
Martin Hosken 1432ab15c1 Add graphical output to hbtestfont 2010-05-22 00:56:40 +01:00
Behdad Esfahbod bbc7a99d01 Move mirroring around a bit 2010-05-21 18:25:08 +01:00
Behdad Esfahbod bd0987386b Add a few more standard features 2010-05-21 18:06:35 +01:00
Behdad Esfahbod 75f3469ca6 Add note 2010-05-21 17:59:04 +01:00
Behdad Esfahbod 1094a294f6 Add rtlm 2010-05-21 17:58:20 +01:00
Behdad Esfahbod 074ea78749 Add ltra, ltrm, and rtla features 2010-05-21 17:53:10 +01:00
Behdad Esfahbod 1ce7b87c4d Cleanup bitmask allocation 2010-05-21 17:31:45 +01:00
Behdad Esfahbod 9722b8f005 Simple renames 2010-05-21 14:37:47 +01:00
Behdad Esfahbod ca663bb23c Move main shaper code into hb_ot_shape() 2010-05-21 14:34:23 +01:00
Behdad Esfahbod 4a9a5c0b06 Don't allocate bits for features not available 2010-05-21 13:33:46 +01:00
Behdad Esfahbod e53d77142a Speed up feature mask setting
Patch from Jonathan Kew.
2010-05-21 13:32:38 +01:00
Behdad Esfahbod ee1b322100 Fix feature mask setting 2010-05-21 12:55:57 +01:00
Behdad Esfahbod 6774463883 Apply user features to ranges! 2010-05-20 15:41:20 +01:00
Behdad Esfahbod 6b1b957f6d Add lookup_map 2010-05-20 15:14:44 +01:00
Behdad Esfahbod 60010a0c4d Update always-apply mask from 0xFFFF to 1
We plan to use the first bit to be always on.
2010-05-20 14:05:02 +01:00
Behdad Esfahbod 7f411dbfd9 Apply user features
No ranges yet
2010-05-20 13:40:18 +01:00
Behdad Esfahbod 22da7fd94d Rename a few files to be C++ sources
In anticipation for buffer revamp coming.
2010-05-12 18:23:21 -04:00