Commit Graph

360 Commits

Author SHA1 Message Date
Behdad Esfahbod a1733db1c6 [OTLayout] Start adding process() tracing 2012-11-23 16:40:04 -05:00
Behdad Esfahbod 73c18ae1b9 Cleanup 2012-11-23 15:34:11 -05:00
Behdad Esfahbod be218c688c Pass this object to trace macros 2012-11-23 15:32:14 -05:00
Behdad Esfahbod 902cc8aca0 [OTLayout] Start unbreaking tracing 2012-11-23 15:23:30 -05:00
Behdad Esfahbod dabe698fcb Minor 2012-11-23 14:21:35 -05:00
Behdad Esfahbod c779d82b2f Fix warnings 2012-11-23 14:09:21 -05:00
Behdad Esfahbod 81822528ef Minor 2012-11-23 13:27:16 -05:00
Behdad Esfahbod 1d67ef980f Move code around 2012-11-22 16:47:53 -05:00
Behdad Esfahbod ec35a72a44 [OTLayout] Port apply() operator to process() template 2012-11-22 16:33:46 -05:00
Behdad Esfahbod 2005fa5340 [OTLayout] Port would_apply() and get_coverage() to process() templates 2012-11-22 16:33:46 -05:00
Behdad Esfahbod 44fc237b53 [OTLayout] Port closure() to process() template 2012-11-22 16:33:46 -05:00
Behdad Esfahbod e8cfdd7fa8 Start implementing collect_glyphs() operation
Not functional yet.
2012-11-16 19:07:06 -08:00
Behdad Esfahbod 7d52e6601f Whitespace 2012-11-16 18:49:54 -08:00
Behdad Esfahbod 5a08ecf920 Implement hb_ot_layout_get_glyph_class() 2012-11-16 13:34:29 -08:00
Behdad Esfahbod 2616689d15 More tracing fixups 2012-10-29 21:51:56 -07:00
Behdad Esfahbod bc513add79 Add missing TRACE_RETURN 2012-10-29 19:03:55 -07:00
Behdad Esfahbod 2bd9fe3598 Refactor 2012-09-04 15:15:19 -04:00
Behdad Esfahbod a5ddd9e31c [OT] Really fix possible NULL dereference this time 2012-09-04 14:55:00 -04:00
Behdad Esfahbod f8fa2b5cf6 Fix possible NULL dereference
As reported by Kenichi Ishibashi.
2012-09-03 20:19:46 -04:00
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 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 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 2eaf482b37 Revert "[GSUB/GPOS] Reject Context/ChainContext lookups with zero input"
This reverts commit 0981068b75.

I was confused.  Even if we access coverage[0] unconditionally, we don't
need bound checks since the array machinary already handles that.
2012-08-09 18:30:05 -04:00
Behdad Esfahbod 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
Behdad Esfahbod 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
Behdad Esfahbod 305246744e Minor 2012-08-02 08:08:04 -04:00
Behdad Esfahbod 22148b8c4a Use Coverage digests in would_apply 2012-08-02 03:51:51 -04:00
Behdad Esfahbod 6c459c8fef Minor 2012-08-02 03:45:53 -04:00
Behdad Esfahbod 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
Behdad Esfahbod c2e42c3db6 Minor 2012-07-30 19:54:50 -04:00
Behdad Esfahbod 03f67bc012 More refactoring glyph class access 2012-07-30 19:47:53 -04:00
Behdad Esfahbod 300c7307eb [OT] Don't crash if no GDEF available 2012-07-30 19:37:44 -04:00
Behdad Esfahbod 05bd1b6342 [GSUB/GPOS] Move glyph props matching around 2012-07-30 19:30:01 -04:00
Behdad Esfahbod 2fca1426ca [GSUB] Don't erase glyph classes if GDEF does not have glyph classes 2012-07-30 18:46:41 -04:00
Behdad Esfahbod 7fbbf86efe [GSUB] Minor 2012-07-30 18:36:42 -04:00
Behdad Esfahbod 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
Behdad Esfahbod e6f7479fe3 [GSUB] Simplify would-apply 2012-07-28 18:34:58 -04:00
Behdad Esfahbod 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
Behdad Esfahbod 0981068b75 [GSUB/GPOS] Reject Context/ChainContext lookups with zero input 2012-07-28 17:01:59 -04:00
Behdad Esfahbod 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
Behdad Esfahbod 49c5ec5144 Minor refactoring 2012-07-23 20:14:13 -04:00
Behdad Esfahbod c3e6fdc379 [Indic] Improve check on ligatures
Only skip actual ligatures, not marks in-between ligature components.
2012-07-23 20:11:42 -04:00
Behdad Esfahbod d1af9e82e5 [GSUB/GPOS] Const correctness 2012-07-23 19:55:35 -04:00
Behdad Esfahbod 8932858123 Minor 2012-07-19 21:02:38 -04:00
Behdad Esfahbod e72b360ac6 Refactor / finish would_apply() operation
Untested.
2012-07-19 14:44:46 -04:00
Behdad Esfahbod 60da763dfa [GSUB/GDEF] Guess glyph classes after substitution only if no GDEF
Brings down Khmer failures with Daun Penh font from 36% to 20%.
2012-07-16 16:14:40 -04:00
Behdad Esfahbod 6d08c7f1b3 Revert "Towards templatizing common Lookup types"
This reverts commit 727135f3a9.

This is work-in-progress.  Didn't mean to push it out just yet.
2012-07-11 18:01:27 -04:00
Behdad Esfahbod 727135f3a9 Towards templatizing common Lookup types 2012-07-11 18:00:28 -04:00
Behdad Esfahbod b12e2549cb Minor 2012-06-09 03:05:20 -04:00
Behdad Esfahbod f19e0b0099 Match input before backtrack
Makes more sense, optimization-wise.
2012-06-09 02:26:57 -04:00
Behdad Esfahbod ce47613889 Micro-optimize
I know...
2012-06-09 01:43:15 -04:00
Behdad Esfahbod 7b84c536c1 In MarkBase attachment, only attach to first of a MultipleSubst sequence
This is apparently what Uniscribe does.  Test case is:

  SEEN FATHA TEH ALEF

with Arabic Typesetting.  Originally reported by Khaled Hosny.
2012-06-08 22:04:23 -04:00
Behdad Esfahbod e085fcf7ca Remove unused buffer->replace_glyphs_be16 2012-06-08 21:45:00 -04:00
Behdad Esfahbod 3ec77d6ae0 Don't use replace_glyphs_be for MultipleSubst 2012-06-08 21:44:06 -04:00
Behdad Esfahbod 4b7192125f Minor 2012-06-08 21:41:46 -04:00
Behdad Esfahbod 68b76121f8 Fix regressions introduced by sed. Ouch!
Introduced in 99c2695759.
Broken mark-mark and mark-ligature stuff.
2012-06-08 10:47:00 -04:00
Behdad Esfahbod 2a3d911fe0 Fix alignment-requirement missmatch
Detected by clang and lots of cmdline options.
2012-06-07 17:31:46 -04:00
Behdad Esfahbod 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
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 6736f3c5b0 Minor 2012-05-13 15:21:06 +02:00
Behdad Esfahbod 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
Behdad Esfahbod 28b9d502bb Minor 2012-05-13 15:04:00 +02:00
Behdad Esfahbod 5f131d3226 [GSUB/GPOS/Indic] Apply GSUB/GPOS within syllables only
This does not apply to the context matchings.

This regresses tests right now.  And we are not sure whether this is
the right thing to do for GPOS.  But we'll figure out.
2012-05-11 17:29:40 +02:00
Behdad Esfahbod 8fd83aaf6e [GSUB/GPOS] Fix wrong buffer access in backward skippy mask matching 2012-05-11 17:18:37 +02:00
Behdad Esfahbod 203d71069c [GSUB/GPOS] Check all glyph masks when matching input 2012-05-11 16:01:44 +02:00
Behdad Esfahbod 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
Behdad Esfahbod 55fe2cf79b Make APPLY debug output print current index and codepoint
Yay!
2012-05-11 03:56:33 +02:00
Behdad Esfahbod 98619ce4fa Minor 2012-05-11 02:34:06 +02:00
Behdad Esfahbod acea183e98 Add return annotation for APPLY 2012-05-11 02:33:11 +02:00
Behdad Esfahbod 0ab8c86217 Annotate SANITIZE return values
More to come, for APPLY, CLOSURE, etc.
2012-05-11 02:11:52 +02:00
Behdad Esfahbod 6f45538017 More massaging trace messaging 2012-05-10 23:24:43 +02:00
Behdad Esfahbod 208109703c Better trace message support infrastructure
We have varargs in the trace interface now.  To be used soon...
2012-05-10 23:06:58 +02:00
Behdad Esfahbod 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 5caece67ab Make closure() return void 2012-04-23 23:03:12 -04:00
Behdad Esfahbod 5b93e8d94f Update copyright headers 2012-04-23 22:26:27 -04:00
Behdad Esfahbod 6a9be5bd35 Rename hb_glyph_map_t to hb_set_t 2012-04-23 22:23:17 -04:00
Behdad Esfahbod 31081f7390 Implement closure() for Context and ChainContext lookups 2012-04-23 16:54:58 -04:00
Behdad Esfahbod 3e32cd9570 Minor 2012-04-23 13:22:50 -04:00
Behdad Esfahbod 650ac00da3 Minor refactoring 2012-04-23 13:17:09 -04:00
Behdad Esfahbod f94b0aa646 Add "closure" operation stubs to GSUB
Filling in.
2012-04-23 13:04:38 -04:00
Behdad Esfahbod 41ae674f68 Don't create hb_apply_context_t per glyph!
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
Behdad Esfahbod 03408ce73d Fix more possible buffer overruns
I have this function, but can't clean up it to my satisfaction.
2012-01-18 21:28:34 -05:00
Behdad Esfahbod 7d479900cd Refactor the two remaining uses of _hb_ot_layout_skip_mark() 2012-01-18 21:19:32 -05:00
Behdad Esfahbod 506ffeb8e7 Further mark skippy fixes from Jonathan Kew
We should be in good shape now.
2012-01-18 16:07:53 -05:00
Behdad Esfahbod a4a48fe6d4 Fix mark skipping regression
Ouch!
2012-01-17 18:08:41 -05:00
Behdad Esfahbod 4ab9731154 Refactor mark skipping 2012-01-16 22:20:31 -05:00
Behdad Esfahbod 370f03e9c6 Minor 2012-01-16 17:06:59 -05:00
Behdad Esfahbod 4d3aeb8cb2 [GSUB/GPOS] Fix mark skip indexing issues
Mozilla bug 701637 and 714067 combined.

Patch from Jonathan Kew.
2012-01-16 16:43:26 -05:00
Behdad Esfahbod 7a750ac33e Rename table files from eg maxp-private.hh to maxp-table.hh 2011-08-17 14:19:59 +02:00
Behdad Esfahbod c605bbbb6d Remove C++ guards from source files
Where causing issues for people with MSVC.
2011-08-04 20:00:53 -04:00
Behdad Esfahbod cc06c243d8 Streamline debugging infrastructure even more 2011-07-25 20:34:17 -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 18c42850c9 Shrink space used for ligature ids
This frees 16bits in the glyph_info struct during the ot_layout process.
We can use the freed space in the shapers now.
2011-07-25 00:43:39 -04:00
Behdad Esfahbod d8787493c9 Minor 2011-07-25 00:36:01 -04:00
Behdad Esfahbod 468e9cb25c Move buffer methods into the object 2011-07-22 14:49:14 -04:00
Behdad Esfahbod 744970af4d [API] Add support for vertical text
Design not final yet, and in fact I'm going to change it immediately,
but this is an standalone change for itself.
2011-05-17 17:12:34 -04:00
Behdad Esfahbod abcfe9b59b Remove hb_ot_layout_context_t, simplify code 2011-05-11 00:02:02 -04:00
Behdad Esfahbod 2409d5f8d7 Update Copyright headers 2011-04-21 17:14:28 -04:00
Behdad Esfahbod cc1a8a938b Fix ChanContext backtrack matching with GPOS
Reported on mailing list by Keith Stribley and Khaled Hosny.
2011-01-06 14:58:52 -05:00
Behdad Esfahbod 7eb875118d Mozilla Bug 618592 - freeze on typekit
Fix apply_lookup() for zero-input broken fonts.
2010-12-13 14:13:35 -05:00
Behdad Esfahbod 300cb41417 Add XXX marks 2010-11-17 12:57:23 -05:00
Behdad Esfahbod 11e3ec444a Fix a few more "unreachable code" warnings 2010-11-03 15:11:04 -04:00
Behdad Esfahbod 2304856340 Remove another couple lines of dead code 2010-11-03 12:47:27 -04:00
Behdad Esfahbod c2709119c8 Move things around some more 2010-11-02 19:12:59 -04:00
Behdad Esfahbod 8c69e65abe Rename lookup_flags to lookup_props since it's more than just flags 2010-11-02 19:12:59 -04:00
Behdad Esfahbod 98370e89d1 WIP removing external synthesized GDEF support and implementing it internally 2010-11-02 19:12:58 -04:00
Behdad Esfahbod 8eeed7eddc Remove LONGTERMTODO item that I'll never fix 2010-10-27 12:07:49 -04:00
Behdad Esfahbod acdba3f90b Prefer C linkage 2010-07-23 15:39:27 -04:00
Behdad Esfahbod f7acd8df51 Do alternate glyph selection!
Kinda hand-wavy right now.  Not tested.
2010-05-20 17:26:35 +01:00
Behdad Esfahbod 36b73c80df Shortening buffer accessors: rename buffer->in_pos to buffer->i 2010-05-14 22:10:39 -04:00
Behdad Esfahbod 29427c5c51 Shortening buffer accessors: rename buffer->out_length to buffer->out_len 2010-05-14 22:08:22 -04:00
Behdad Esfahbod 6960350be9 Shortening buffer accessors: rename buffer->in_length to buffer->len 2010-05-14 22:07:46 -04:00
Behdad Esfahbod 9d5e26df08 Shortening buffer accessors: rename buffer->out_string to buffer->out_info 2010-05-14 22:03:11 -04:00
Behdad Esfahbod 7e7007a1c9 Shortening buffer accessors: rename buffer->in_string to buffer->info 2010-05-14 22:02:37 -04:00
Behdad Esfahbod 8e6b6bb293 Merge buffer->out_pos and buffer->out_length 2010-05-14 21:58:22 -04:00
Behdad Esfahbod 22f668eb9a Remove the unused BUFFER macro 2010-05-14 21:41:04 -04:00
Behdad Esfahbod 7e53ebe478 Remove the IN_CURGLYPH() macro 2010-05-14 21:38:46 -04:00
Behdad Esfahbod d784da1923 Remove the IN_CURINFO() macro 2010-05-14 21:37:18 -04:00
Behdad Esfahbod 281f59b4fb Remove IN_INFO() and IN_NEXTGLYPH() macros 2010-05-14 21:34:22 -04:00
Behdad Esfahbod 6e489cdf76 Remove the IN_GLYPH() macro 2010-05-14 21:07:35 -04:00
Behdad Esfahbod 27da6dd89a Remove OUT_GLYPH() and OUT_INFO() macros 2010-05-14 20:17:50 -04:00
Behdad Esfahbod cc6ae7ff91 Fix lookahead matching. Oops! 2010-05-14 20:09:48 -04:00
Behdad Esfahbod d7cfb3b2d1 s/\<context\>/c/g 2010-05-13 14:18:49 -04:00
Behdad Esfahbod 1d5e780136 Add a few other buffer methods 2010-05-12 23:43:00 -04:00
Behdad Esfahbod 22da7fd94d Rename a few files to be C++ sources
In anticipation for buffer revamp coming.
2010-05-12 18:23:21 -04:00
Behdad Esfahbod 458ecbb60b Fix tracing order 2010-05-10 21:11:35 -04:00
Behdad Esfahbod dacebcadae Simplify unions 2010-05-10 19:45:41 -04:00
Behdad Esfahbod 0eb9fc6e37 Change DEFINE_SIZE_VAR to DEFINE_SIZE_ARRAY 2010-05-10 19:01:17 -04:00
Behdad Esfahbod 596e471aa5 Cleanup DEFINE_SIZE_VAR2 2010-05-10 18:48:29 -04:00
Behdad Esfahbod b961518b96 Simplify array access 2010-05-10 18:20:54 -04:00
Behdad Esfahbod ed07422c33 Further cleanup of sizeof 2010-05-10 18:08:46 -04:00
Behdad Esfahbod 40cbefe858 Remove unnecessary casts 2010-05-10 17:47:22 -04:00
Behdad Esfahbod bea34c7cbb Further cleanup of DEFINE_SIZE 2010-05-10 17:28:16 -04:00
Behdad Esfahbod b3651231bf Remove ASSERT_SIZE in favor of the safer DEFINE_SIZE_STATIC 2010-05-10 16:59:57 -04:00
Behdad Esfahbod 569da92bc6 Cleanup ASSERT_SIZE_VAR 2010-05-10 16:46:36 -04:00
Behdad Esfahbod e45d3f86f9 Start cleaning up get_size()
So we know when the size is static and when dynamic.
2010-05-06 19:33:31 -04:00
Behdad Esfahbod b157617644 Remove the last of SANITIZE macros: SANITIZE_SELF 2010-05-06 14:48:27 -04:00
Behdad Esfahbod 4f252fedc7 Remove SANITIZE macro 2010-05-06 13:30:23 -04:00
Behdad Esfahbod 41a93d2c1f Remove SANITIZE_WITH_BASE 2010-05-06 12:55:14 -04:00
Behdad Esfahbod f5fab0c718 Remove SANITIZE_MEM 2010-05-06 10:26:52 -04:00
Behdad Esfahbod 1cd1e117d0 Remove SANITIZE_ARRAY 2010-05-05 20:15:14 -04:00
Behdad Esfahbod 583d7f9586 Cosmetic 2010-05-05 01:49:22 -04:00
Behdad Esfahbod 705e215268 Minor 2010-05-05 01:40:25 -04:00
Behdad Esfahbod 4169710911 Simplify chaining 2010-05-05 01:37:58 -04:00
Behdad Esfahbod 1911b9d21b Remove APPLY_ARG_DEF and APPLY_ARG 2010-05-05 01:32:04 -04:00
Behdad Esfahbod 6c42cddfe5 Port apply to use hb_trace_t 2010-05-05 01:30:48 -04:00
Behdad Esfahbod 969c9705ae Move context_length into apply_context 2010-05-05 01:23:44 -04:00
Behdad Esfahbod 94a23aaeca Move buffer into apply_context 2010-05-05 01:13:09 -04:00
Behdad Esfahbod 63493f956d Move layout_context into apply_context 2010-05-05 01:01:05 -04:00
Behdad Esfahbod fff9aa263d Minor 2010-05-05 00:32:21 -04:00
Behdad Esfahbod 39840474af Remove SANITIZE_ARG_DEF and SANITIZE_ARG 2010-05-05 00:23:19 -04:00
Behdad Esfahbod bb029af943 Remove SANITIZE_THIS 2010-05-04 15:28:52 -04:00
Behdad Esfahbod 4d4cce9626 Remove SANITIZE_THIS2 2010-05-04 14:57:55 -04:00
Behdad Esfahbod 26bfcb64e4 Cosmetic 2010-05-04 14:49:45 -04:00
Behdad Esfahbod be74284673 Remove SANITIZE_THIS3 2010-05-04 14:47:05 -04:00
Behdad Esfahbod 64d3fc8d0d Cosmetic: Rename HB_LIKELY/HB_UNLIKELY to likely/unlikely 2010-05-03 22:51:19 -04:00
Behdad Esfahbod 33d13fdda9 Rename HB_GNUC_UNUSED -> HB_UNUSED 2010-04-29 13:56:44 -04:00
Behdad Esfahbod 7d3a126334 Define HB_FUNC for portability to non-gcc 2010-04-29 13:54:01 -04:00
Behdad Esfahbod 6617eada95 Rename apply_context -> context 2010-04-29 02:25:30 -04:00
Behdad Esfahbod b4c7fab762 Rename 2010-04-29 02:24:25 -04:00
Behdad Esfahbod 1376fb7bf9 [apply] Use a context object to reduce number of parameters passed around 2010-04-29 02:19:21 -04:00
Behdad Esfahbod 173fde7087 Further simplify tracing 2010-04-29 01:47:30 -04:00
Behdad Esfahbod bc20045743 Simplify trace code 2010-04-29 01:40:26 -04:00
Behdad Esfahbod 807c5b03a2 [sanitize] Make debug code always available to the compiler
Such that we don't break debug build all the time.
2010-04-28 23:28:07 -04:00
Behdad Esfahbod 74e313c016 [gsubgpos] Make debug code always available to the compiler
Such that we don't break debug build all the time.
2010-04-28 15:15:09 -04:00
Behdad Esfahbod a92f0fda7f Fix debug build 2010-04-28 13:09:40 -04:00
Behdad Esfahbod efb324a46f Remove GET_FOR_DATA macros
The major-version check is now handled by sanitize.  If major
doesn't match, we reject and fall back to the Null object.
2010-04-23 16:28:27 -04:00
Behdad Esfahbod d632ec4000 Cosmetic 2010-04-22 18:42:05 -04:00
Behdad Esfahbod a3263aa773 Convert the last set of cast macros to templates 2010-04-22 18:42:01 -04:00
Behdad Esfahbod 3b2c2df41b Cleanup Extension sanitize() 2010-04-22 16:51:42 -04:00
Behdad Esfahbod 1856184b93 Fail sanitize on major version mismatch
We handle major-version differences via get_for_data(), so sanitize
should never see a major version mismatch.
2010-04-22 14:21:17 -04:00
Behdad Esfahbod 9fc8684fd8 Cleanup ContextFormat3 sanitize 2010-04-22 13:37:58 -04:00
Behdad Esfahbod 81f2af40f9 Simplify Extension offset now that our int types have no alignment 2010-04-22 00:58:49 -04:00
Behdad Esfahbod c755cb3e3a Change header comment 2010-04-22 00:11:43 -04:00
Behdad Esfahbod 0dfcc13a46 Rename ConstCharP to CharP (overloaded now) 2010-04-21 23:41:26 -04:00
Behdad Esfahbod 2cb08458f6 Rename const_array() to array() (overloaded) 2010-04-21 22:37:31 -04:00
Behdad Esfahbod e961c86c57 Convert NEXT() and ARRAY_AFTER() macros to templates 2010-04-21 15:56:11 -04:00
Behdad Esfahbod 198facdc55 Use templates for const char * casts 2010-04-21 13:35:36 -04:00
Behdad Esfahbod 1922ffe701 Const correctness 2010-04-21 04:52:11 -04:00
Behdad Esfahbod 0e206de986 Fix warnings 2010-04-21 01:48:41 -04:00
Behdad Esfahbod d5943407a4 Fix debug build 2010-04-21 01:42:11 -04:00
Behdad Esfahbod 4b8487d83e Fix the mystery bug!
A couple bugs joined forces to exhibit the mystery behavior of
crashes / infinite loops on OS X / wrong kerning / invalid memory
access.  Pooh!

The bugs were involved:

  - Wrong pointer math with ValueRecord in PairPosFormat1

  - Fallout from avoiding flex arrays, code not correctly updated
    to remove sizeof() usage.

We strictly never use sizeof() directly now.  And the PairPos code
is cleaned up.  Should fix them all.  Bugs are:

  Bug 605655 - Pango 1.26.2 introduces kerning bug
  Bug 611229 - Pango reads from uninitialized memory
  Bug 593240 - (pangoosx) Crash / infinite loop with Mac OS X

We were also doing wrong math converting Device adjustments to
hb_position_t.  Fallout from FreeType days.  Should shift 16, not
6.  Fixed that too.

There's still another bug: we don't sanitize Device records
referenced from value records.  Fixing that also.
2010-04-21 01:41:29 -04:00
Behdad Esfahbod d0351314cd Include stdio.h if debugging 2009-11-05 16:16:06 -05:00
Behdad Esfahbod e21899bc35 Fix array query API
The array query APIs now all do:

  - Return the total number of items
  - Take a start_offset, such that individual items can be fetched
  - The _count IN/OUT variable always has number of items written
    into the array upon return of the function
2009-11-04 16:36:14 -05:00
Behdad Esfahbod d3480ba37f Don't use zero-sized arrays
It's not part of the standard and MSVC doesn't like it.  It makes the code
a lot less elegant than it used to be, but I think it should work now.
2009-11-03 10:47:29 -05:00
Behdad Esfahbod 52e9a71d57 [HB] Add comment 2009-11-02 14:40:48 -05:00
Behdad Esfahbod f9c0a2dad0 [HB] Fix apply_lookup() loop
Part of Bug 595539 - Regressions in rendering certain Thai sequences with
OpenType font
2009-11-02 14:40:48 -05:00
Behdad Esfahbod c0ab43c058 [HB] Fix bug in chain_context_lookup() invocations
Part of Bug 595539 - Regressions in rendering certain Thai sequences with
OpenType font
2009-11-02 14:40:48 -05:00
Behdad Esfahbod 3e2401f6c5 [HB] Rename DEBUG to TRACE where appropriate 2009-11-02 14:40:48 -05:00
Behdad Esfahbod 0535b50f43 [HB] Add GSUB/GPOS tracing 2009-11-02 14:40:48 -05:00
Behdad Esfahbod 20b035dad4 [HB] Put C++ inline's back
Apparetly in C++, inline means a totally different thing.
2009-11-02 14:40:36 -05:00
Behdad Esfahbod 284899ccbe [HB] Add a NEXT() macro 2009-11-02 14:40:35 -05:00
Behdad Esfahbod bff3c0fde5 [HB] Remove clumsy macros and improve API 2009-11-02 14:40:34 -05:00
Behdad Esfahbod 71a8344a5e [HB] Remove a few 'inline's, though the compiler mostly ignores them 2009-11-02 14:40:32 -05:00