f4e48adcdd
[OT] Apply 'rclt' feature in horizontal mode
...
'rclt' is "Required Contextual Forms" being proposed by Microsoft.
It's like 'calt', but supposedly always on. We apply 'calt' anyway,
and now apply this too.
2012-08-07 21:12:49 -04:00
71baea0062
[OT] Use general-category, not GDEF class, to decide to zero mark advances
...
At this point, the GDEF glyph synthesis looks pointless. Not that I
have many fonts without GDEF lying around.
As for mark advance zeroing when GPOS not available, that also is being
replaced by proper fallback mark positioning soon.
2012-08-03 17:40:07 -07:00
a8c6da90f4
[OT] Add per-complex-shaper shape_plan data
...
Hookup some Indic data to it. More to come.
2012-08-02 10:46:34 -04:00
8bb5deba96
[OT] Pipe shape_plan down to pause_callbacks
2012-08-02 10:07:58 -04:00
16c6a27b4b
[OT] Port complex_shaper to planner/plan
2012-08-02 09:38:28 -04:00
5393e3a62b
[OT] Minor refactoring
2012-08-02 09:24:35 -04:00
afbcc24be0
[GSUB] Wire the font, not just the face, down to substitute()
...
We need the font for glyph lookup during GSUB pauses in Indic shaper.
Could perhaps be avoided, but at this point, we don't mean to support
separate substitute()/position() entry points (anymore), so there is
no point in not providing the font to GSUB.
2012-08-02 08:36:40 -04:00
8fbfda920e
Inline font getters
2012-08-01 19:03:46 -04:00
208f70f055
Inline Unicode callbacks internally
2012-08-01 17:13:10 -04:00
1e7d860613
[GPOS] Adjust mark advance-width zeroing logic
...
If there is no GPOS, zero mark advances.
If there *is* GPOS and the shaper requests so, zero mark advances for
attached marks.
Fixes regression with Tibetan, where the font has GPOS, and marks a
glyph as mark where it shouldn't get zero advance.
2012-07-31 23:41:06 -04:00
2bc3b9a616
[OT] Zero mark advances if the shaper desires so
...
Enabled for all shapers except for Indic.
2012-07-31 23:17:22 -04:00
5fecd8b035
[OT] Synthesize glyph classes
2012-07-31 23:17:22 -04:00
693918ef85
[OT] Streamline complex shaper enumeration
...
Add a shaper class struct.
2012-07-30 21:08:51 -04:00
05bd1b6342
[GSUB/GPOS] Move glyph props matching around
2012-07-30 19:30:01 -04:00
7e34601ded
Unbreak Hangul jamo composition
...
When we removed the separate Hangul shaper, the specific normalization
preference of Hangul was lost. Fix that. Also, the Thai shaper was
copied from Hangul, so had the fully-composed normalization behavior,
which was unnecessary. So, fix that too.
2012-07-30 14:53:41 -04:00
4ba647eecf
Fix leak
2012-07-30 09:53:06 -04:00
e82061e8db
Move ot shaper completely to shape_plan
2012-07-27 02:29:32 -04:00
ea278d3895
Partially switch ot shaper to shape_plan
2012-07-27 02:12:28 -04:00
5b95c148cc
Start implementing shape_plan
2012-07-27 01:02:24 -04:00
bd26b4d21f
Minor
2012-07-26 22:18:24 -04:00
027857d041
Start adding a unified shaper access infrastructure
...
Add global shape_plan. Unused so far.
2012-07-26 21:14:02 -04:00
b70021f7c8
When removing zero-width marks, don't remove ligatures
...
If a mark ligated, it probably should NOT be removed.
2012-07-23 20:18:17 -04:00
d96838ef95
Allow complex shapers overriding common features
...
In a new callback... Currently unused by all complex shapers.
2012-07-16 20:26:57 -04:00
330a2af3ff
Use merge_clusters when forming Unicode clusters
2012-06-08 20:40:02 -04:00
5f68f8675e
Minor
2012-06-08 19:23:43 -04:00
0594a24484
Cleanup TRUE/FALSE vs true/false
2012-06-05 20:35:40 -04:00
99c2695759
Add accessort to buffer for current info, current pos, and prev info
2012-05-13 15:45:18 +02:00
d1deaa2f5b
Replace zerowidth invisible chars with a zero-advance space glyph
...
Like Uniscribe does.
2012-05-09 15:04:13 +02:00
1827dc208c
Add hb_ot_shape_glyphs_closure()
...
Experimental API for now.
2012-04-24 16:56:37 -04:00
a4385f0b0a
Improve clustering
2012-04-23 22:20:14 -04:00
a5f1834f57
Apply 'liga' for vertical writing mode too
...
Apparently that's what Kazuraki uses to form vertical ligatures,
which suggests that it's what Adobe does.
2012-04-16 15:55:13 -04:00
683b503f30
Minor
2012-04-14 20:47:14 -04:00
b9f199c8e3
Move code around
2012-04-14 20:25:37 -04:00
d4adade217
Add assert
2012-04-14 19:23:17 -04:00
6bd9b479b8
Hide backend-specific shape functions
...
Also remove shaper_options argument to hb_shape_full(). That was
unused and for "future". Let it go.
More shaper API coming in preparation for plan/planned API.
2012-04-12 14:53:53 -04:00
0e3361464b
Fix bug with not setting Unicode props of the first character
...
Fixes Mongolian shaping issue:
https://bugs.freedesktop.org/show_bug.cgi?id=45695
2012-04-12 10:06:52 -04:00
acd88e659f
In Arabic fallback shaping, check that the font has glyph for new char
2012-04-10 18:02:20 -04:00
7752aa73e7
Minor
2012-04-10 17:22:14 -04:00
11138ccff7
Add normalize mode
...
In preparation for Hangul shaper.
2012-04-05 17:25:19 -04:00
6769f21d57
More moving code around
2012-04-05 16:46:46 -04:00
0501573ded
Fix const correctness in the API
2011-08-10 16:25:56 +02:00
02aeca985b
[API] Changes to main shape API
...
hb_shape() now accepts a shaper_options and a shaper_list argument.
Both can be set to NULL to emulate previous API. And in most situations
they are expected to be set to NULL.
hb_shape() also returns a boolean for now. If shaper_list is NULL, the
return value can be ignored.
shaper_options is ignored for now, but otherwise it should be a
NULL-terminated list of strings.
shaper_list is a NULL-terminated list of strings. Currently recognized
strings are "ot" for native OpenType Layout implementation, "uniscribe"
for the Uniscribe backend, and "fallback" for the non-complex backend
(that will be implemented shortly). The fallback backend never fails.
The env var HB_SHAPER_LIST is also parsed and honored. It's a
colon-separated list of shaper names. The fallback shaper is invoked if
none of the env-listed shapers succeed.
New API hb_buffer_guess_properties() added.
2011-08-04 22:38:09 -04:00
c605bbbb6d
Remove C++ guards from source files
...
Where causing issues for people with MSVC.
2011-08-04 20:00:53 -04:00
2118fdb9f5
Fix fallback shaping
...
Broke it a few commits ago.
2011-08-02 14:06:51 -04:00
9f9bcceca6
Register buffer vars in Indic shaper
2011-07-28 17:07:50 -04:00
b65c06025d
Formalize buffer var allocations
2011-07-28 16:49:29 -04:00
651e8dd79e
Start cleaning up buffer var allocation
...
I've messed up a lot of stuff recently, different parts of the
shaping process are stumbling on eachother's toes because
manually tracking what's in which buffer var is hard. I'm
going to add some internal API to track those such that mistakes
are discovered as soon as they are introduced.
2011-07-25 14:54:08 -04:00
c86f932015
Move code around
2011-07-25 00:44:50 -04:00
34c22f8168
Implement Unicode Canonical Reordering Algorithm
2011-07-22 17:04:20 -04:00
4ff0d2d9df
Decomposition works now!
2011-07-22 16:15:32 -04:00
468e9cb25c
Move buffer methods into the object
2011-07-22 14:49:14 -04:00
45412523dc
More normalization kick
2011-07-22 11:07:05 -04:00
5d90a342e3
Document normalization design
2011-07-21 15:25:01 -04:00
d63adfc7d0
No need to handle variation-selectors seperately, they are GC=Mn
2011-07-21 11:48:57 -04:00
aa7264123a
Only form clusters if we are reversing
...
This produces more accurate cluster mappings. Cluster mappings are
minimal now. Combining marks get their own cluster value most of
the time.
2011-07-21 11:34:59 -04:00
5c6f5982d7
Towards normalization
2011-07-21 11:31:08 -04:00
cf7f43ec33
Remove stale comment
2011-07-21 01:12:26 -04:00
54d1a0d2b2
Form clusters before ensuring native direciton
...
This is essential as ensure_native_direction uses cluster info that
is set by form_clusters().
2011-07-21 01:11:09 -04:00
9111b21ef9
Add _hb_buffer_output_glyph() and _hb_buffer_skip_glyph()
2011-07-21 00:59:15 -04:00
655586fe5e
Towards normalization
2011-07-21 00:52:42 -04:00
49741c8633
Include variation-selectors in cluster calculation
2011-07-21 00:35:37 -04:00
4a68684654
When forming clusters, participate all mark types
2011-07-21 00:14:01 -04:00
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
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
891c4755ba
Humm, undo some shuffling
...
In preparation for adding more advanced unicode funcs.
2011-07-07 23:27:27 -04:00
76f76812ac
Shuffle code around, remove shape_plan from complex shapers
2011-07-07 22:25:25 -04:00
359dcaa0d3
Update copyright headers
2011-07-07 21:55:05 -04:00
b9452bfc16
Fix compiler warnings with -pedantic
2011-06-14 14:47:07 -04:00
63b177e45c
Minor
2011-06-07 15:51:40 -04:00
89a2bc9ba6
[Vertical] Apply vertical features
...
We apply all of vert, vrt2, vkrn, valt, and vpal.
2011-05-31 15:18:13 -04:00
90645fb24b
[OT] Separate map_builder from the actual map
...
Respectively, separate planner from the actual plan.
2011-05-27 18:13:31 -04:00
376dafa6ed
Hide internal symbols
2011-05-27 03:40:04 -04:00
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
60fbb36096
[Vertical] GPOS is always done with horizontal origin
2011-05-19 18:46:15 -04:00
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
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
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
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
e06d4eda7b
Use constructor/destructor for hb_ot_shape_plan_t
2011-05-11 22:18:31 -04:00
6a7ac79e26
Plug leaks
2011-05-11 14:19:18 -04:00
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
6843569d2c
Replace fixed-size feature_maps array with hb_array_t
2011-05-05 14:30:51 -04:00
72657e4ce7
[API] Make hb_font_create() take a face and reference it
2011-05-02 20:47:23 -04:00
2409d5f8d7
Update Copyright headers
2011-04-21 17:14:28 -04:00
fb194b8794
unicode: Cleanup implementation
2011-04-20 02:27:39 -04:00
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
8f0d7e0c3f
Remove hb_buffer_clear_positions(), add hb_ot_layout_position_start()
2011-04-15 19:08:43 -04:00
5814dfa3f5
Cosmetic
2011-04-15 14:41:04 -04:00
99b74760a4
Rename hb_category_t to hb_unicode_general_category_t
2011-04-11 15:47:40 -04:00
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
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
bbbbe80ec9
Rename original_direction to target_direction
2010-12-07 16:22:02 -05:00
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
3a852ae7fe
Save general category and combining class in the buffer for reuse
2010-11-03 16:37:24 -04:00
1e7c1fcbc3
Move code around
2010-11-02 19:12:59 -04:00
98370e89d1
WIP removing external synthesized GDEF support and implementing it internally
2010-11-02 19:12:58 -04:00
dd2ffd282c
Minor renaming
2010-11-02 19:12:58 -04:00
248e3c2ba4
Oops, remove extra mask setting that broke complex shaping
2010-10-27 01:23:14 -04:00
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
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
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
2989be4919
Set user masks after complex masks
2010-10-13 15:18:29 -04:00
13403bc67a
Hookup Arabic shaper!
...
Not tested yet.
2010-10-12 17:23:54 -04:00
57ac0ecb78
Merge clearing masks and setting global masks
2010-10-12 17:07:02 -04:00
fc96596b7c
Form clusters before setting masks
2010-10-12 17:00:40 -04:00
1e80782244
Clear masks before setting them up, not after!
2010-10-12 17:00:07 -04:00
fd3d32d31c
Add hb_ot_shape_execute()
...
Not public yet.
2010-10-12 16:57:47 -04:00
49baa1f69e
Add hb_ot_complex_shaper_t stuff and start hooking Arabic shaper up
2010-10-12 16:50:36 -04:00
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
895fb5d364
Refactor, in a different direction
2010-10-12 16:00:21 -04:00
d2ba016ca1
More refactoring
2010-10-12 15:35:45 -04:00
52601275d5
More separation
2010-10-08 20:38:46 -04:00
6b7e675862
Minor
2010-10-08 20:30:04 -04:00
aa9c450bb2
Enable 'rtlm' mirroring
2010-10-08 20:27:38 -04:00
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
4924affe0f
Add hb-ot-map-private.hh
2010-10-08 19:18:16 -04:00
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
e89b7d2a61
Logically separate feature collection
2010-10-08 12:29:59 -04:00
5b88908f12
Minor
2010-10-08 12:23:01 -04:00
5360ce0c5c
Move some more code around
2010-10-07 21:21:11 -04:00
d9c7260788
Minor
2010-10-07 21:19:54 -04:00
efe0d682e8
Simplify compiling lookups
2010-10-07 21:12:46 -04:00
476c94218b
Rename
2010-10-07 17:47:33 -04:00
98aa3f6544
Call hb_ot_shape_setup_lookups_complex()
2010-10-06 00:23:36 -04:00
f1d07885dc
Rename setup_lookups()
2010-10-06 00:21:37 -04:00
affc5abac7
Move table_tag to hb_ot_shape_context_t
2010-10-06 00:18:16 -04:00
967240dd8b
Add internal hb_ot_shape_context_t
2010-10-05 23:00:05 -04:00
4e573715ae
Improve cmp function parameter namings and casts
...
No semantic change.
2010-09-28 16:28:57 -04:00
2422c4b96d
Add TODO
2010-08-13 14:00:34 -04:00
27f0b092a1
Logically separate feature allocation from application
2010-07-23 17:35:54 -04:00
6cf63132dc
Minor
2010-07-23 17:32:26 -04:00
4e4ef24e46
Towards separating bit allocation from shaping
2010-07-23 17:22:11 -04:00
acdba3f90b
Prefer C linkage
2010-07-23 15:39:27 -04:00
f2a1b411b1
Followup fix for variation-selectors
...
Patch from Jonathan Kew
2010-06-03 11:37:51 -04:00
a224b4d502
Fix skipping variation-selectors
2010-06-02 22:31:41 -04:00
81a77b115d
Make feature sorting stable
2010-06-01 23:03:54 -04:00
fdc322a820
Minor
2010-05-28 20:55:52 -04:00
f062ec6bb2
Further simplify mask allocator
2010-05-28 20:54:43 -04:00
8af45fda47
Fix global feature handling
2010-05-28 20:41:20 -04:00
e04685ee7b
Simplify mask allocation
2010-05-28 20:37:06 -04:00
0e235d0fc9
Towards a mask allocator
2010-05-28 20:27:30 -04:00
81c5e8724b
Allow disabling default features
...
Patch from Jonathan Kew
2010-05-28 18:31:16 -04:00
15c7379c16
Revert "Merge remote branch 'martin/master'"
...
This reverts commit 80af2812fbc442672ec2
2010-05-26 10:48:10 -04:00
80af2812fb
Merge remote branch 'martin/master'
2010-05-24 18:14:24 +01:00
bf36a1074a
Move all callback functions in a vtable structs
2010-05-24 17:46:21 +01:00
72631c9d06
Merge branch 'master' of git://git.freedesktop.org/~behdad/harfbuzz-ng
2010-05-22 09:38:02 +01:00
1432ab15c1
Add graphical output to hbtestfont
2010-05-22 00:56:40 +01:00
bbc7a99d01
Move mirroring around a bit
2010-05-21 18:25:08 +01:00
bd0987386b
Add a few more standard features
2010-05-21 18:06:35 +01:00
75f3469ca6
Add note
2010-05-21 17:59:04 +01:00
1094a294f6
Add rtlm
2010-05-21 17:58:20 +01:00
074ea78749
Add ltra, ltrm, and rtla features
2010-05-21 17:53:10 +01:00
1ce7b87c4d
Cleanup bitmask allocation
2010-05-21 17:31:45 +01:00
9722b8f005
Simple renames
2010-05-21 14:37:47 +01:00
ca663bb23c
Move main shaper code into hb_ot_shape()
2010-05-21 14:34:23 +01:00
4a9a5c0b06
Don't allocate bits for features not available
2010-05-21 13:33:46 +01:00
e53d77142a
Speed up feature mask setting
...
Patch from Jonathan Kew.
2010-05-21 13:32:38 +01:00
ee1b322100
Fix feature mask setting
2010-05-21 12:55:57 +01:00
6774463883
Apply user features to ranges!
2010-05-20 15:41:20 +01:00
6b1b957f6d
Add lookup_map
2010-05-20 15:14:44 +01:00
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
7f411dbfd9
Apply user features
...
No ranges yet
2010-05-20 13:40:18 +01:00
22da7fd94d
Rename a few files to be C++ sources
...
In anticipation for buffer revamp coming.
2010-05-12 18:23:21 -04:00
Behdad Esfahbod
Ryan Lortie
Martin Hosken