7c8e844d92
Use namespace for OpenType tables
...
Avoids USHORT, SHORT, ULONG, LONG clashes with Windows API.
2012-08-28 17:57:49 -04:00
472f229a63
[GSUB] Generalize would_apply()
...
Fixes logic also, where before we were always matching if glyphs_len==1
and a ligature started with the glyph.
2012-08-07 22:25:24 -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
22148b8c4a
Use Coverage digests in would_apply
2012-08-02 03:51:51 -04:00
6c459c8fef
Minor
2012-08-02 03:45:53 -04:00
0120ce9679
[GSUB/GPOS] Remove unused get_coverage() methods
2012-08-01 21:56:35 -04:00
1336ecdf8e
[GSUB/GPOS] Use Coverage digests as gatekeeper
...
Gives me a good 10% speedup for the Devanagari test case. Less so
for less lookup-intensive tests.
For the Devanagari test case, the false positive rate of the GSUB digest
is 4%.
2012-08-01 21:46:36 -04:00
a878c58a8f
[GSUB/GPOS] Add add_coverage()
2012-08-01 21:46:19 -04:00
03b09214c0
[GSUB] Minor
2012-07-31 22:43:58 -04:00
c2e42c3db6
Minor
2012-07-30 19:54:50 -04:00
03f67bc012
More refactoring glyph class access
2012-07-30 19:47:53 -04:00
05bd1b6342
[GSUB/GPOS] Move glyph props matching around
2012-07-30 19:30:01 -04:00
7fbbf86efe
[GSUB] Minor
2012-07-30 18:36:42 -04:00
6cdfd14bb1
Fix build on Mac
2012-07-30 17:22:17 -04:00
a973b5ce86
[GSUB] Further adjustments to mark-attachment vs ligation interaction
...
The d1d69ec52e
2012-07-30 01:47:46 -04:00
d1d69ec52e
[GSUB] Don't ligate glyphs attached to different components of ligatures
...
This concludes the mark-attachment vs ligating interaction fixes (for now).
2012-07-30 00:51:47 -04:00
f24bcfbed1
Minor
2012-07-30 00:39:00 -04:00
fe20c0f84f
[GSUB] Fix mark component stuff when ligatures form ligatures!
...
See comments.
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=437633
2012-07-30 00:00:59 -04:00
2ec3ba46a3
[GSUB/GPOS] Minor
...
Start squeezing more out of lig_id/lig_comp.
2012-07-29 22:16:15 -04:00
cb3d340631
[GSUB] Don't set new lig_id on mark ligatures
...
If two marks form a ligature, retain their previous lig_id, such that
the mark ligature can attach to ligature components...
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=676343
In fact, I noticed that we should not let ligatures form between glyphs
coming from different components of a previous ligature. For example,
if the sequence is: LAM,SHADDA,LAM,FATHA,HEH, the LAM,LAM,HEH form a
ligature, putting SHADDA and FATHA next to eachother. However, it would
be wrong to ligate them. Uniscribe has this bug also.
2012-07-29 20:37:38 -04:00
338fe662b5
[GSUB] Minor
2012-07-28 18:53:01 -04:00
e6f7479fe3
[GSUB] Simplify would-apply
2012-07-28 18:34:58 -04:00
dadede012e
Minor
2012-07-28 18:13:09 -04:00
0b99429ead
[GSUB/GPOS] Add get_coverage() and use it to speed up main loop
...
And use it to speed up the hotspot by checking coverage directly in
the main loop, not 10 functions deep in.
Gives me a solid 20% boost with Indic test suite. Less so for less
lookup-intensive scenarios.
Remove the "fast_path" hack from before.
2012-07-28 17:46:35 -04:00
ea278d3895
Partially switch ot shaper to shape_plan
2012-07-27 02:12:28 -04:00
ec8d249469
Make data members of various OpenType structs protected instead of private
...
Should fix warnings generated when building with -Wunused-private-field.
Based on patch from Jonathan Kew.
2012-07-24 15:40:37 -04:00
74d1d88781
[GSUB] Fix would_apply() for LigatureSubst
2012-07-19 16:14:23 -04:00
e72b360ac6
Refactor / finish would_apply() operation
...
Untested.
2012-07-19 14:44:46 -04:00
1feb8345a5
[GSUB] Allow 1-to-1 ligature substitutions!
...
Apparently Uniscribe allows these, and they are used in some Khmer fonts
shipped with Windows, namely, Daun Penh.
2012-07-16 13:23:40 -04:00
6d08c7f1b3
Revert "Towards templatizing common Lookup types"
...
This reverts commit 727135f3a9
2012-07-11 18:01:27 -04:00
727135f3a9
Towards templatizing common Lookup types
2012-07-11 18:00:28 -04:00
f211d5c291
More Oops! Fix fast-path with sub-type==0
2012-06-09 03:11:22 -04:00
b1de6aa1f3
Oops!
2012-06-09 03:07:59 -04:00
faf0f20253
Add sanitize() logic for fast-paths
2012-06-09 03:02:36 -04:00
993c51915f
Add fast-path to GSUB to check coverage
...
Shaves a good 10% off DejaVu Sans with simple Latin text for me.
Now, DejaVu is very ChainContext-intensive, but it's also a very
popular font!
2012-06-09 02:48:16 -04:00
4952f0aa5b
Minor
2012-06-09 01:43:20 -04:00
ec57e0c565
Set lig_comp for MultipleSubst components
...
To be used for correct mark attachment to first component of a
MultipleSubst output. That's what Uniscribe does.
2012-06-08 21:47:23 -04:00
3ec77d6ae0
Don't use replace_glyphs_be for MultipleSubst
2012-06-08 21:44:06 -04:00
4b7192125f
Minor
2012-06-08 21:41:46 -04:00
28ce5fa454
Merge clusters when ligating
2012-06-08 20:17:06 -04:00
2bb1761ccb
Minor, use next_glyph()
2012-06-08 19:29:44 -04:00
2a3d911fe0
Fix alignment-requirement missmatch
...
Detected by clang and lots of cmdline options.
2012-06-07 17:31:46 -04:00
ed2f1363a3
Fix substitution glyph class propagation
...
The old code was doing nothing.
Still got to find an example font+string that makes this matter, but
need this for fixing synthetic GDEF anyway.
2012-05-22 22:12:22 -04:00
3f18236a03
Fix more warnings
2012-05-13 16:20:10 +02:00
99c2695759
Add accessort to buffer for current info, current pos, and prev info
2012-05-13 15:45:18 +02:00
5df809b655
[GSUB/GPOS] Remove context_length
...
The spec doesn't say contextual matching should be done this way,
and AOTS doesn't do it either. It was inherited from old HarfBuzz.
Remove it.
2012-05-13 15:17:51 +02:00
cee7187447
[Indic] Move syllable tracking from Indic to generic layer
...
This is to incorporate it into GSUB/GPOS processing.
2012-05-11 11:41:39 +02:00
acea183e98
Add return annotation for APPLY
2012-05-11 02:33:11 +02:00
0ab8c86217
Annotate SANITIZE return values
...
More to come, for APPLY, CLOSURE, etc.
2012-05-11 02:11:52 +02:00
a9844d41c6
Combine lig_id and lig_comp into one byte, to free up one for Indic
2012-05-09 17:53:13 +02:00
Behdad Esfahbod