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92 Commits

Author SHA1 Message Date
Behdad Esfahbod bb4bbe617d [config] Add HB_NO_OT_LAYOUT 
Part of https://github.com/harfbuzz/harfbuzz/issues/1652
 2019-06-26 13:29:58 -07:00
Behdad Esfahbod 41248cce0e Remove MIN/MAX in favor of hb_min/hb_max 2019-05-07 20:54:31 -07:00
Behdad Esfahbod 42f4bd6b80 Minor warning fix again 2019-04-18 19:06:07 -04:00
Behdad Esfahbod 518e6e07f2 Minor 2019-04-18 12:21:25 -04:00
Behdad Esfahbod 474a12058d [array/vector] Rename len to length 2018-12-21 18:53:01 -05:00
Ebrahim Byagowi e412008599 Remove redundant void from C++ sources (#1486) 2018-12-17 13:01:01 -05:00
Behdad Esfahbod cc8428756a [shape-plan] Cache shape plans with variations based on variation indices 2018-11-12 18:48:10 -05:00
Behdad Esfahbod f33ad6d692 [aat] Fix up previous commit and add files 2018-10-23 14:31:51 -07:00
Behdad Esfahbod 8be0e5fd45 [ot-map] Minor 2018-10-23 13:39:50 -07:00
David Corbett 7f1fbfe2e3 Add hb_ot_tags_to_script_and_language 2018-10-11 13:54:28 -04:00
David Corbett 91067716f5 Refactor the selection of script and language tags 
The old hb-ot-tag.cc functions, `hb_ot_tags_from_script` and
`hb_ot_tag_from_language`, are now wrappers around a new function:
`hb_ot_tags`. It converts a script and a language to arrays of script
tags and language tags. This will make it easier to add new script tags
to scripts, like 'dev3'. It also allows for language fallback chains;
nothing produces more than one language yet though.

Where the old functions return the default tags 'DFLT' and 'dflt',
`hb_ot_tags` returns an empty array. The caller is responsible for
using the default tag in that case.

The new function also adds a new private use subtag syntax for script
overrides: "x-hbscabcd" requests a script tag of 'abcd'.

The old hb-ot-layout.cc functions,`hb_ot_layout_table_choose_script` and
`hb_ot_layout_script_find_language` are now wrappers around the new
functions `hb_ot_layout_table_select_script` and
`hb_ot_layout_script_select_language`. They are essentially the same as
the old ones plus a tag count parameter.

Closes #495.
 2018-10-11 13:54:28 -04:00
Behdad Esfahbod f048ead84a Some more 2018-09-24 18:04:17 -04:00
Behdad Esfahbod 606bf57430 Revert forcing use of single-parameter static_assert() 
Some clang versions define static_assert as a macro apparently, so we cannot
redefine it...

This reverts commit 94bfea0ce6.
This reverts commit 4e62627831.
 2018-09-16 19:34:39 +02:00
Behdad Esfahbod 4e62627831 Enforce single-param static_assert() only 
So we don't accidentally break it again.
 2018-09-16 18:09:36 +02:00
Behdad Esfahbod 71c9f84e7c Make --features rand=1 available to the user 
Use rand=255 to mean "randomize".

Part of https://github.com/harfbuzz/harfbuzz/pull/803
 2018-09-11 10:47:59 +02:00
David Corbett f05df643b4 Allow requesting a specific glyph for 'rand' 
Randomization only happens by default. If the user specifies a value for
'rand', that value is respected.
 2018-09-11 10:47:59 +02:00
David Corbett c2a75e07e5 Implement 'rand' 2018-09-11 10:47:59 +02:00
Behdad Esfahbod c77ae40852 Rename hb-*private.hh to hb-*.hh 
Sorry for the noise, downstream custom builders.  Please adjust.
 2018-08-25 22:36:36 -07:00
Behdad Esfahbod bddeb2b10c Minor renamings of internal inline functions 2018-07-10 14:13:21 +02:00
Behdad Esfahbod f9abbf83b6 Fix fallout from 975bdd5ef5 
Ouch!
 2018-06-02 15:46:08 -07:00
Behdad Esfahbod f7515769fd [vector] Use Crap pool in push() as well 2018-06-01 17:48:37 -07:00
Behdad Esfahbod 90869e6962 [ot] Apply langsys's required feature even if no other feature exists 2018-05-07 14:12:17 -07:00
Behdad Esfahbod 978ace6fbb Improve _hb_popcount() 
Support 128bit type.
 2018-02-16 16:08:45 -08:00
Behdad Esfahbod 12757b6929 Misc warning fixes 
Fixes https://github.com/harfbuzz/harfbuzz/issues/712
 2018-01-26 18:14:05 -08:00
Behdad Esfahbod dbdbfe3d7b Use nullptr instead of NULL 2017-10-15 12:11:08 +02:00
Behdad Esfahbod c3448e8d21 Use static_assert instead of custom ASSERT_STATIC 2017-10-15 12:02:00 +02:00
Behdad Esfahbod 5287ccc935 [unsafe-to-break] Allocate public bits from 0 2017-08-10 15:02:34 -07:00
Behdad Esfahbod 40bd7e9a1c [unsafe-to-break] Add UNSAFE_TO_BREAK flag 
Not all shapers code is updated to set this properly.
GSUB and Arabic shaper are updated.
GPOS and other shapers are NOT.

Fixes https://github.com/behdad/harfbuzz/issues/224
 2017-08-10 15:02:28 -07:00
Behdad Esfahbod cdf1fd0627 [indic] Add infrastructure to disable ZWNJ-skipping in context-matching 
Not used yet.
 2017-07-14 12:43:34 +01:00
Behdad Esfahbod 72ada4f0c6 [GX] Hook up feature variations 
Shape-plan caching is not implemented.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 7ceadbe981 Shuffle code around 2016-12-16 19:06:26 -06:00
Behdad Esfahbod bde5e3959c Move add_lookups from map to map-builder 
In prep for more changes.
 2016-12-16 19:06:26 -06:00
Behdad Esfahbod 09c7a2d6bf Limit bits-per-feature to eight 
Limits number of alternatives per glyph per feature to 255, so be it.
That's better than possibly breaking shaping because of one bad feature
value.
 2016-08-08 17:29:30 -07:00
Behdad Esfahbod 333173103b Fix sign of shift operators 
This one:

  map->mask = (1 << (next_bit + bits_needed)) - (1 << next_bit);

before the fix, the shift was done as an int, causing overflow
if it ever got to 1 << 31.  Sprinkle 'u's around.

Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=634805
 2016-08-08 17:28:14 -07:00
Behdad Esfahbod 731a430cd3 Fix requiredFeature stage handling logic 
Originally the way Jonathan had written this was correct in
"continue"ing:

35e28c7a73 (diff-ead86a33a5cc9ad7f6e6381031a0baddR199)

When I rewrote his patch, I messed it up:

da13293798 (diff-ead86a33a5cc9ad7f6e6381031a0baddR209)

the intended behavior was NOT to set found=TRUE and NOT to continue.
This was resulting in feature_index[table_index] being left unset.
Oops!
 2016-03-02 13:32:42 -08:00
Behdad Esfahbod ea512f7108 Use C-style casts instead of compare to 0, to convert hb_bool_t to bool 2015-11-26 19:22:22 -05:00
ThePhD 5c99cf93d6 Merge branch 'master' into vc++-fixes 2015-08-14 01:02:00 -04:00
Behdad Esfahbod 0f98fe88f4 [ot] Search globally for 'vert' feature if not found in specified script/lang 
Fixes https://github.com/behdad/harfbuzz/issues/63
 2015-07-23 11:52:11 +01:00
ThePhD 8e545d5961 Fix all VC++ warnings and errors in the current commit's builds. 2015-06-22 22:29:04 -04:00
Jonathan Kew da13293798 Rework handling of requiredFeature to solve problem with rlig in arial.ttf from winxp 
https://bugzilla.mozilla.org/show_bug.cgi?id=986802
Fixes https://github.com/behdad/harfbuzz/pull/39

API Change:

-hb_ot_layout_language_get_required_feature_index
+hb_ot_layout_language_get_required_feature

New API takes an extra pointer argument.  Pass NULL in to get
behavior of previous API.

Reworked by behdad
 2014-06-19 16:33:48 -04:00
Behdad Esfahbod fb8cc86ff9 Rename sort() to qsort() 
In an effort to make the algorithm used clear.
 2014-06-19 15:31:09 -04:00
Behdad Esfahbod 176fd17d02 Bug 70971 - Signed/unsigned compiler warnings on windows 
Patch from Emil Eklund.
 2013-10-30 17:27:24 +00:00
Behdad Esfahbod 27674b4bb3 [OTLayout] Protect against out-of-range lookup indices 
Filter them out when compiling map.
 2013-10-03 14:54:50 -04:00
Behdad Esfahbod d2c96819de Move code around 2013-05-04 16:04:04 -04:00
Behdad Esfahbod 3276c354da [OTLayout] Minor refactoring 2013-05-02 15:39:15 -04:00
Behdad Esfahbod 2265be0a62 Minor 2013-05-02 15:39:15 -04:00
Behdad Esfahbod 893f57b32f Minor renaming 2013-04-21 15:23:21 -04:00
Behdad Esfahbod 8ac3c9c0b6 Rename "pause" to "stage" 
The compile() function is starting to become illegible...
 2013-04-21 15:19:38 -04:00
Behdad Esfahbod dd0641a432 Minor 2013-04-21 15:13:57 -04:00
Behdad Esfahbod 06a44e8593 Remove unneeded code 
We always push a pause at the end such that each lookup falls in exactly
one pause_map_t.  Now, only if I can find a better name for that...
 2013-04-21 15:13:08 -04:00