Commit Graph

2787 Commits

Author SHA1 Message Date
Behdad Esfahbod 2fcbbdb41a Port Arabic fallback ligating to share code with GSUB
This will eventually allow us to skip marks, as well as (fallback)
attach marks to ligature components of fallback-shaped Arabic.
That would be pretty cool.  I kludged GDEF props in, so mark-skipping
works, but the produced ligature id/components will be cleared later
by substitute_start() et al.

Perhaps using a synthetic table for Arabic fallback shaping was a better
idea.  The current approach has way too many layering violations...
2012-08-29 14:01:22 -04:00
Behdad Esfahbod 5e399a8a45 Minor 2012-08-29 10:40:49 -04:00
Behdad Esfahbod a177d027d1 [GSUB] Move ligation logic over 2012-08-28 23:18:22 -04:00
Behdad Esfahbod 191fa885d9 [GSUB] Merge Ligature and context input matching
Looks better now...
2012-08-28 22:58:55 -04:00
Behdad Esfahbod 93814ca7dc Start converging Ligature and match_input 2012-08-28 22:39:10 -04:00
Behdad Esfahbod 2eef71737e [hb-icu-le] Add visbility 2012-08-28 19:16:38 -04:00
Behdad Esfahbod d59e28e492 Minor 2012-08-28 19:08:36 -04:00
Behdad Esfahbod af169d2813 Minor 2012-08-28 19:08:22 -04:00
Behdad Esfahbod 52ff2681d8 Use VisualStudio-style atomic intrinsics on mingw32 2012-08-28 18:03:35 -04:00
Behdad Esfahbod 7c8e844d92 Use namespace for OpenType tables
Avoids USHORT, SHORT, ULONG, LONG clashes with Windows API.
2012-08-28 17:57:49 -04:00
Behdad Esfahbod dc5df5af6b Revert "Minor"
This reverts commit 3e0a03978b.

I know remember why that line is there :).
2012-08-28 16:31:23 -04:00
Behdad Esfahbod 3e0a03978b Minor 2012-08-27 17:10:02 -04:00
Behdad Esfahbod 667218a5b1 Minor 2012-08-27 17:00:44 -04:00
Behdad Esfahbod 30dd62251f Only fallback-position glyphs if we have the ccc
Previously, ccc=0 Thai / Lao marks were being
mispositioned.  Don't touch them.
2012-08-27 16:54:34 -04:00
Behdad Esfahbod e1ba62811a Center unknown marks horizontally 2012-08-27 16:28:05 -04:00
Behdad Esfahbod a4e75e4128 Minor 2012-08-27 15:54:15 -04:00
Behdad Esfahbod 23b0e9d7dc [Indic] Fix switch
D'oh.  Was working by pure chance :)).
2012-08-26 14:30:38 -04:00
Behdad Esfahbod ae4d4e1de6 Bug 53815 - CoreText backend doesn't link 2012-08-26 14:27:44 -04:00
Behdad Esfahbod ec0e46376a Remove TODO items 2012-08-24 00:44:53 -04:00
Behdad Esfahbod 56e878ab87 [graphite2] Cleanup scratch buffer allocation 2012-08-24 00:41:51 -04:00
Behdad Esfahbod 2f7586c622 [icu-le] Implement icu layout engine shaper 2012-08-24 00:00:33 -04:00
Behdad Esfahbod ba7f6c3797 [icu-le] Hook up to hb_face_t 2012-08-24 00:00:33 -04:00
Behdad Esfahbod e96bb36995 [icu-le] Actually use the FontTableCache 2012-08-24 00:00:33 -04:00
Behdad Esfahbod 7d242364ea [icu-le] Start adding a icu-layout-engine backend
Import PortableFontInstance and add shaper stub.
2012-08-24 00:00:29 -04:00
Behdad Esfahbod b5584ee4be [Indic] For old-spec, match non-zero context
Fixes consonant-position with old-spec Malayalam.  Uniscribe seem to be
doing this.  Fixes below-base La (eg. Pa,H,La) with AnjaliNewLipi.ttf.
Doesn't regress new-spec or other scripts.
2012-08-23 16:26:07 -04:00
Behdad Esfahbod d9b204d3d2 [GSUB] Allow non-zero-context matching in would_apply()
To be used in the next patch.
2012-08-23 16:22:28 -04:00
Behdad Esfahbod 1f2bb172fe Revert "[Indic/GSUB] Ignore context when matching would_apply()"
This reverts commit 24dd4e5674.

Oops.  My bad.  The change _regressed_ Malayalam test suite, not
improved it.  I'll redo it, differentiating between old-spec and
new-spec cases.
2012-08-23 16:10:37 -04:00
Behdad Esfahbod 24dd4e5674 [Indic/GSUB] Ignore context when matching would_apply()
The MS Indic specs say "...all classifications are determined ... using
context-free substitutions."  However, testing shows that MS's Malayalam
shapers (both old and new), "match" even if there is no zero-context rule.
We follow.

Fixes below-base La (eg. Pa,H,La) with AnjaliNewLipi.ttf (old spec).
Moreover, test suite Malayalam failures are down to 312 from 875!  No
change in other scripts.

Current numbers:

BENGALI: 353996 out of 354285 tests passed. 289 failed (0.0815727%)
DEVANAGARI: 707339 out of 707394 tests passed. 55 failed (0.00777502%)
GUJARATI: 366489 out of 366506 tests passed. 17 failed (0.0046384%)
GURMUKHI: 60769 out of 60809 tests passed. 40 failed (0.0657797%)
KANNADA: 951086 out of 951913 tests passed. 827 failed (0.0868777%)
KHMER: 299106 out of 299124 tests passed. 18 failed (0.00601757%)
LAO: 53611 out of 53644 tests passed. 33 failed (0.0615167%)
MALAYALAM: 1047541 out of 1048416 tests passed. 875 failed (0.0834592%)
ORIYA: 42320 out of 42329 tests passed. 9 failed (0.021262%)
SINHALA: 271726 out of 271847 tests passed. 121 failed (0.0445103%)
TAMIL: 1091837 out of 1091837 tests passed. 0 failed (0%)
TELUGU: 970558 out of 970573 tests passed. 15 failed (0.00154548%)
TIBETAN: 208469 out of 208469 tests passed. 0 failed (0%)
2012-08-23 15:47:10 -04:00
Behdad Esfahbod 6732d62e78 [Indic] Implement pre-base reordering Ra for old-spec Malayalam
Fixes Pa,H,Ra sequence with AnjaliNewLipi.ttf.
2012-08-23 15:32:12 -04:00
Behdad Esfahbod 80cd92326f [Indic] Only apply basic features per-syllable
Free up syllables and let features work across syllables for the
presentation forms features and GPOS.

Fixed:
- 1 GURMUKHI test (remains 40)
- 12 KHMER tests (remains 18)
- 11 SINHALA tests (remains 121)

Regresses:
- 5 MALAYALAM tests (up to 312)

Current numbers:

BENGALI: 353996 out of 354285 tests passed. 289 failed (0.0815727%)
DEVANAGARI: 707339 out of 707394 tests passed. 55 failed (0.00777502%)
GUJARATI: 366489 out of 366506 tests passed. 17 failed (0.0046384%)
GURMUKHI: 60769 out of 60809 tests passed. 40 failed (0.0657797%)
KANNADA: 951086 out of 951913 tests passed. 827 failed (0.0868777%)
KHMER: 299106 out of 299124 tests passed. 18 failed (0.00601757%)
LAO: 53611 out of 53644 tests passed. 33 failed (0.0615167%)
MALAYALAM: 1048104 out of 1048416 tests passed. 312 failed (0.0297592%)
ORIYA: 42320 out of 42329 tests passed. 9 failed (0.021262%)
SINHALA: 271726 out of 271847 tests passed. 121 failed (0.0445103%)
TAMIL: 1091837 out of 1091837 tests passed. 0 failed (0%)
TELUGU: 970558 out of 970573 tests passed. 15 failed (0.00154548%)
TIBETAN: 208469 out of 208469 tests passed. 0 failed (0%)
2012-08-23 12:06:14 -04:00
Behdad Esfahbod df5d5c68f3 Whitespace 2012-08-23 09:33:30 -04:00
Behdad Esfahbod 7fe00d15da Release 0.9.3 2012-08-18 13:59:46 -04:00
Behdad Esfahbod 7068e534c4 Fix ChangeLog generation rule 2012-08-18 13:56:10 -04:00
Behdad Esfahbod 2f1747ed7d Add comment 2012-08-16 11:46:46 -04:00
Behdad Esfahbod bd08d5d126 [OT] Fix Arabic shaper OOB access
https://bugzilla.mozilla.org/show_bug.cgi?id=782908
2012-08-16 11:35:50 -04:00
Behdad Esfahbod b161bfc4f6 [configure] Cleanup check for ICU
Check for upstream-provided 'icu-uc' pkgconfig package.
2012-08-16 08:09:44 -04:00
Behdad Esfahbod daf0731865 [ICU] Fix includes
As reported by Steven Loomis, including uversion.h works everywhere.
2012-08-16 07:32:59 -04:00
Behdad Esfahbod a67ba9c0fe Whitespace 2012-08-15 18:52:17 -04:00
Behdad Esfahbod 9fe76051f7 [NEWS] Fix date
Oops!
2012-08-15 17:24:28 -04:00
Behdad Esfahbod 45c1383cc7 Minor 2012-08-14 09:33:18 -04:00
Behdad Esfahbod 4ac4c6f2e1 Fix ICU build with older ICUs 2012-08-13 10:52:52 -04:00
Behdad Esfahbod 883cbf5ed7 Minor 2012-08-12 17:11:27 -04:00
Behdad Esfahbod b7a4d37d0b minor 2012-08-11 21:32:23 -04:00
Behdad Esfahbod d5045a5f40 [ICU] Use new normalizer2 compose/decompose API
It's considerably faster than the fallback implementation we had
previously!
2012-08-11 21:27:15 -04:00
Behdad Esfahbod 2b73a1f112 Add TODO 2012-08-11 19:17:54 -04:00
Behdad Esfahbod 9f9f04c222 [OT] Unbreak Thai shaping and fallback Arabic shaping
The merger of normalizer and glyph-mapping broke shapers that
modified text stream.  Unbreak them by adding a new preprocess_text
shaping stage that happens before normalizing/cmap and disallow
setup_mask modification of actual text.
2012-08-11 18:34:13 -04:00
Behdad Esfahbod e9f28a38f5 [OT] Add shape_plan to Arabic shaper 2012-08-11 18:20:54 -04:00
Behdad Esfahbod 344cc56698 Add TODO 2012-08-11 17:36:23 -04:00
Behdad Esfahbod daf13afb08 [OT] Implement fallback mark positioning for "double" combining marks 2012-08-10 16:38:44 -04:00
Behdad Esfahbod d345313104 [OT] Fix fallback mark positioning with left-to-right text
Ouch!
2012-08-10 16:34:04 -04:00