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
faf0f20253
Add sanitize() logic for fast-paths
2012-06-09 03:02:36 -04:00
993c51915f
Add fast-path to GSUB to check coverage
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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
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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
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Detected by clang and lots of cmdline options.
2012-06-07 17:31:46 -04:00
ed2f1363a3
Fix substitution glyph class propagation
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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
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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
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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
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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
5caece67ab
Make closure() return void
2012-04-23 23:03:12 -04:00
5b93e8d94f
Update copyright headers
2012-04-23 22:26:27 -04:00
c64ddab3c3
Flesh out closure() for GSUB
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The GSUBGPOS part still missing.
2012-04-23 15:28:35 -04:00
650ac00da3
Minor refactoring
2012-04-23 13:17:09 -04:00
f94b0aa646
Add "closure" operation stubs to GSUB
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Filling in.
2012-04-23 13:04:38 -04:00
36608941f3
Add GSUB "would_apply" API
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To be used in the Indic shaper later. Unused for now.
2012-04-19 22:21:38 -04:00
c6035cf802
Add names to enums
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gdb was showing <anonymous enum> instead of useful stuff, so name
all our enums.
2012-04-12 13:23:59 -04:00
41ae674f68
Don't create hb_apply_context_t per glyph!
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I couldn't measure significant performance gains out of this; maybe
about 5% (with one million Malayalam strings). Still, not bad.
But reminds me that optimizing this codebase without profiling first
is simply not going to work. Oh well...
2012-04-11 17:13:50 -04:00
7d479900cd
Refactor the two remaining uses of _hb_ot_layout_skip_mark()
2012-01-18 21:19:32 -05:00
4ab9731154
Refactor mark skipping
2012-01-16 22:20:31 -05:00
370f03e9c6
Minor
2012-01-16 17:06:59 -05:00
4d3aeb8cb2
[GSUB/GPOS] Fix mark skip indexing issues
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Mozilla bug 701637 and 714067 combined.
Patch from Jonathan Kew.
2012-01-16 16:43:26 -05:00
52ebdff49d
Fix GSUB lookuptype 1 subtype 1 delta wrapping
2011-09-27 12:38:16 -04:00
ae9877dea6
Add hhea-table support
2011-08-17 15:00:10 +02:00
7a750ac33e
Rename table files from eg maxp-private.hh to maxp-table.hh
2011-08-17 14:19:59 +02:00
Behdad Esfahbod