0bc7a38463
[OT] Fix ReverseChainingSubst
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We should make it clear that we don't want output buffer in this case,
otherwise buffer->backtrack_len() would be wrong.
2012-10-29 22:02:45 -07:00
fabd3113a9
[OT] Port Arabic fallback shaping to synthetic GSUB
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All of init/medi/fina/isol and rlig implemented.
Let there be dragons... ⻯
2012-09-06 00:51:44 -04:00
1d3947a6bd
Minor
2012-09-04 22:42:17 -04:00
b3b89b6658
[OT] Add SubstLookup serialize API
2012-09-04 21:28:33 -04:00
a930c68e9c
[OT] More serialize. Implements all basic GSUB subtables
2012-09-04 19:16:09 -04:00
1b38b4e817
Minor
2012-09-04 18:17:21 -04:00
2bd9fe3598
Refactor
2012-09-04 15:15:19 -04:00
2941683358
[OT] Implement serialize() for AlternateSubst
2012-09-03 23:31:14 -04:00
1f07e3382a
[OT] Implement serialize() for MultiSubst
2012-09-03 23:28:34 -04:00
4912030dfb
Minor
2012-09-03 21:00:48 -04:00
c61be03d6d
[OT] A bit more serialize
2012-09-01 21:49:44 -04:00
abcc5ac1fd
[OT] Improve serialize syntax
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For some definition of improvement...
2012-09-01 21:30:17 -04:00
bc5be24014
[OT] Restart work on serialize()
2012-09-01 21:25:20 -04:00
5e399a8a45
Minor
2012-08-29 10:40:49 -04:00
a177d027d1
[GSUB] Move ligation logic over
2012-08-28 23:18:22 -04:00
191fa885d9
[GSUB] Merge Ligature and context input matching
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Looks better now...
2012-08-28 22:58:55 -04:00
93814ca7dc
Start converging Ligature and match_input
2012-08-28 22:39:10 -04:00
7c8e844d92
Use namespace for OpenType tables
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Avoids USHORT, SHORT, ULONG, LONG clashes with Windows API.
2012-08-28 17:57:49 -04:00
472f229a63
[GSUB] Generalize would_apply()
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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()
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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
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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
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The d1d69ec52e
2012-07-30 01:47:46 -04:00
d1d69ec52e
[GSUB] Don't ligate glyphs attached to different components of ligatures
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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!
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See comments.
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=437633
2012-07-30 00:00:59 -04:00
2ec3ba46a3
[GSUB/GPOS] Minor
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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
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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
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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
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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
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Untested.
2012-07-19 14:44:46 -04:00
1feb8345a5
[GSUB] Allow 1-to-1 ligature substitutions!
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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"
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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
Behdad Esfahbod