Behdad Esfahbod
2bc3b9a616
[OT] Zero mark advances if the shaper desires so
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Enabled for all shapers except for Indic.
2012-07-31 23:17:22 -04:00
Behdad Esfahbod
5fecd8b035
[OT] Synthesize glyph classes
2012-07-31 23:17:22 -04:00
Behdad Esfahbod
693918ef85
[OT] Streamline complex shaper enumeration
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Add a shaper class struct.
2012-07-30 21:08:51 -04:00
Behdad Esfahbod
05bd1b6342
[GSUB/GPOS] Move glyph props matching around
2012-07-30 19:30:01 -04:00
Behdad Esfahbod
7e34601ded
Unbreak Hangul jamo composition
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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
Behdad Esfahbod
4ba647eecf
Fix leak
2012-07-30 09:53:06 -04:00
Behdad Esfahbod
e82061e8db
Move ot shaper completely to shape_plan
2012-07-27 02:29:32 -04:00
Behdad Esfahbod
ea278d3895
Partially switch ot shaper to shape_plan
2012-07-27 02:12:28 -04:00
Behdad Esfahbod
5b95c148cc
Start implementing shape_plan
2012-07-27 01:02:24 -04:00
Behdad Esfahbod
bd26b4d21f
Minor
2012-07-26 22:18:24 -04:00
Behdad Esfahbod
027857d041
Start adding a unified shaper access infrastructure
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Add global shape_plan. Unused so far.
2012-07-26 21:14:02 -04:00
Behdad Esfahbod
b70021f7c8
When removing zero-width marks, don't remove ligatures
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If a mark ligated, it probably should NOT be removed.
2012-07-23 20:18:17 -04:00
Behdad Esfahbod
d96838ef95
Allow complex shapers overriding common features
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In a new callback... Currently unused by all complex shapers.
2012-07-16 20:26:57 -04:00
Behdad Esfahbod
330a2af3ff
Use merge_clusters when forming Unicode clusters
2012-06-08 20:40:02 -04:00
Behdad Esfahbod
5f68f8675e
Minor
2012-06-08 19:23:43 -04:00
Behdad Esfahbod
0594a24484
Cleanup TRUE/FALSE vs true/false
2012-06-05 20:35:40 -04:00
Behdad Esfahbod
99c2695759
Add accessort to buffer for current info, current pos, and prev info
2012-05-13 15:45:18 +02:00
Behdad Esfahbod
d1deaa2f5b
Replace zerowidth invisible chars with a zero-advance space glyph
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Like Uniscribe does.
2012-05-09 15:04:13 +02:00
Behdad Esfahbod
1827dc208c
Add hb_ot_shape_glyphs_closure()
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Experimental API for now.
2012-04-24 16:56:37 -04:00
Behdad Esfahbod
a4385f0b0a
Improve clustering
2012-04-23 22:20:14 -04:00
Behdad Esfahbod
a5f1834f57
Apply 'liga' for vertical writing mode too
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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
Behdad Esfahbod
683b503f30
Minor
2012-04-14 20:47:14 -04:00
Behdad Esfahbod
b9f199c8e3
Move code around
2012-04-14 20:25:37 -04:00
Behdad Esfahbod
d4adade217
Add assert
2012-04-14 19:23:17 -04:00
Behdad Esfahbod
6bd9b479b8
Hide backend-specific shape functions
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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
Behdad Esfahbod
0e3361464b
Fix bug with not setting Unicode props of the first character
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Fixes Mongolian shaping issue:
https://bugs.freedesktop.org/show_bug.cgi?id=45695
2012-04-12 10:06:52 -04:00
Behdad Esfahbod
acd88e659f
In Arabic fallback shaping, check that the font has glyph for new char
2012-04-10 18:02:20 -04:00
Behdad Esfahbod
7752aa73e7
Minor
2012-04-10 17:22:14 -04:00
Behdad Esfahbod
11138ccff7
Add normalize mode
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In preparation for Hangul shaper.
2012-04-05 17:25:19 -04:00
Behdad Esfahbod
6769f21d57
More moving code around
2012-04-05 16:46:46 -04:00
Behdad Esfahbod
0501573ded
Fix const correctness in the API
2011-08-10 16:25:56 +02:00
Behdad Esfahbod
02aeca985b
[API] Changes to main shape API
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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
Behdad Esfahbod
c605bbbb6d
Remove C++ guards from source files
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Where causing issues for people with MSVC.
2011-08-04 20:00:53 -04:00
Behdad Esfahbod
2118fdb9f5
Fix fallback shaping
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Broke it a few commits ago.
2011-08-02 14:06:51 -04:00
Behdad Esfahbod
9f9bcceca6
Register buffer vars in Indic shaper
2011-07-28 17:07:50 -04:00
Behdad Esfahbod
b65c06025d
Formalize buffer var allocations
2011-07-28 16:49:29 -04:00
Behdad Esfahbod
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
Behdad Esfahbod
c86f932015
Move code around
2011-07-25 00:44:50 -04:00
Behdad Esfahbod
34c22f8168
Implement Unicode Canonical Reordering Algorithm
2011-07-22 17:04:20 -04:00
Behdad Esfahbod
4ff0d2d9df
Decomposition works now!
2011-07-22 16:15:32 -04:00
Behdad Esfahbod
468e9cb25c
Move buffer methods into the object
2011-07-22 14:49:14 -04:00
Behdad Esfahbod
45412523dc
More normalization kick
2011-07-22 11:07:05 -04:00
Behdad Esfahbod
5d90a342e3
Document normalization design
2011-07-21 15:25:01 -04:00
Behdad Esfahbod
d63adfc7d0
No need to handle variation-selectors seperately, they are GC=Mn
2011-07-21 11:48:57 -04:00
Behdad Esfahbod
aa7264123a
Only form clusters if we are reversing
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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
Behdad Esfahbod
5c6f5982d7
Towards normalization
2011-07-21 11:31:08 -04:00
Behdad Esfahbod
cf7f43ec33
Remove stale comment
2011-07-21 01:12:26 -04:00
Behdad Esfahbod
54d1a0d2b2
Form clusters before ensuring native direciton
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This is essential as ensure_native_direction uses cluster info that
is set by form_clusters().
2011-07-21 01:11:09 -04:00
Behdad Esfahbod
9111b21ef9
Add _hb_buffer_output_glyph() and _hb_buffer_skip_glyph()
2011-07-21 00:59:15 -04:00
Behdad Esfahbod
655586fe5e
Towards normalization
2011-07-21 00:52:42 -04:00