Commit Graph

3487 Commits

Author SHA1 Message Date
Behdad Esfahbod 8249ec3f86 Make top-byte of unicode_props available to be used differently per-GC 2015-11-04 13:26:17 -08:00
Behdad Esfahbod cc5d3a3388 Towards using top-byte of unicode-props for more things 2015-11-04 13:22:33 -08:00
Behdad Esfahbod 2f38dde5a1 Add _hb_glyph_info_is_unicode_mark()
Unused right now.
2015-11-04 13:17:33 -08:00
Behdad Esfahbod 90d75f93bb Tighten ccc-setting a bit and document it 2015-11-03 12:58:12 -08:00
Behdad Esfahbod df698f3299 [ot-font] Fix hmtx table length checking, *again*
Exactly the same problem that I fixed in
63ef0b41dc

I rewrote the table checking yesterday in
67f8821fb2
and introduced the exact same issue again. :(
Good thing we have ongoing fuzzing going now.  Was discovered
immediately by libFuzzer.  Thanks kcc!

https://github.com/behdad/harfbuzz/issues/139#issuecomment-153449473
Fixes https://github.com/behdad/harfbuzz/issues/156
2015-11-03 12:15:12 -08:00
Behdad Esfahbod ed2024ef93 [perf] Micro-optimize 2015-11-02 18:03:38 -08:00
Behdad Esfahbod 76a5310a83 Remove irrelevant comment
I tried moving the is_default_ignorable() function to an INTERNAL
function.  That made the binary size grow by 5k AND things got a
tad bit slower!
2015-11-02 17:52:45 -08:00
Behdad Esfahbod 8259669fbd Minor 2015-11-02 17:44:05 -08:00
Behdad Esfahbod 9382c471ea Combine unicode_props0/1 into a uint16
Slightly faster.  In prep for more changes.
2015-11-02 17:36:51 -08:00
Behdad Esfahbod 7127718545 [perf] Only call combining_class() for marks
Saves some time.  Also preparing for reusing the ccc byte for other stuff.
2015-11-02 17:27:48 -08:00
Behdad Esfahbod 5ba450407b Make max context-length and max nesting level configurable
...at compile time.
2015-11-02 15:43:39 -08:00
Behdad Esfahbod 67f8821fb2 [ot] Make bad-hmtx handling match FreeType
Also route fuzzing-related tests through hb-ot-font, to reduce dependency
on FreeType behavior for badly-broken fonts.  Fixes failing test with
FreeType master.
2015-11-02 15:37:29 -08:00
Behdad Esfahbod 672ca3b4e6 Use templates for making sure expression is constant 2015-10-26 14:05:05 -07:00
Behdad Esfahbod 5c8174eda3 Update comments for removal of compat decompositions 2015-10-21 18:51:40 -02:00
Behdad Esfahbod f679970040 Disable compatibility decomposition usage during normalization
Fixes https://github.com/behdad/harfbuzz/issues/152
2015-10-21 17:20:55 -02:00
Behdad Esfahbod ce889189c1 Fix two more -Wshadow warnings
https://bugzilla.mozilla.org/show_bug.cgi?id=1215894
2015-10-21 11:23:12 -02:00
Behdad Esfahbod 4a6b1eedbb Fix one more -Wshadow warning
https://bugzilla.mozilla.org/show_bug.cgi?id=1215894
2015-10-21 11:20:55 -02:00
Behdad Esfahbod 6f932bc8f9 Fix a few more -Wshadow-local warnings
https://bugzilla.mozilla.org/show_bug.cgi?id=1215894
2015-10-21 11:16:49 -02:00
Behdad Esfahbod b90cb366d7 Fix one -Wshadow-compatible-local warning
From https://bugzilla.mozilla.org/show_bug.cgi?id=1215894
2015-10-21 11:13:21 -02:00
Behdad Esfahbod 50e5750bd8 Avoid unnecessary cast to 64-bit
Fixes https://github.com/behdad/harfbuzz/issues/146

Or I think it should.
2015-10-21 11:10:40 -02:00
Behdad Esfahbod 305d2fbf5a Add HB_FALLTHROUGH
Borrowed from https://bugzilla.mozilla.org/show_bug.cgi?id=1215411
2015-10-21 11:04:28 -02:00
Ebrahim Byagowi f35b3e931d Add a prototype of DirectWrite as a shaping backend 2015-10-20 22:20:47 +03:30
Behdad Esfahbod ca97ea7aa2 [ft] Revert change-of-behavior of hb_ft_font_create() introduced in 1.0.5
The default FreeType load flags where changed from FT_LOAD_NO_HINTING
to FT_LOAD_DEFAULT in 2a9627c564.
This is crashing HarfBuzz-enabled FreeType as I suppose it causes
infinite recursion between HB and FT autohinter...

Revert the behavior change.

Fixes https://github.com/behdad/harfbuzz/issues/143
2015-10-15 20:20:22 -03:00
Behdad Esfahbod 63ef0b41dc [ot-font] Fix hmtx wrong table length check
Discovered by libFuzzer.  Ouch!

https://github.com/behdad/harfbuzz/issues/139#issuecomment-148289957
2015-10-15 12:54:28 -03:00
Behdad Esfahbod 613e630617 Reduce max nesting level from 8 to 6
We probably should implement better system to catch cyclic lookups.
But for now, this speeds up worst case behavior with broken fonts
considerably without compromising legitimate usecases.

https://github.com/behdad/harfbuzz/issues/139#issuecomment-147788447
2015-10-13 23:33:28 -03:00
Behdad Esfahbod ed13e2ce50 [ot-font] Fix leak
https://github.com/behdad/harfbuzz/issues/139#issuecomment-147616887
2015-10-13 10:32:56 -03:00
Behdad Esfahbod f966649747 Fix another memory access issue discovered by libFuzzer
Fixes https://github.com/behdad/harfbuzz/issues/139#issuecomment-146984679
2015-10-13 00:30:50 -04:00
Behdad Esfahbod cc6ea308d4 Extern "C" custom-allocator declerations 2015-10-12 17:21:52 -04:00
Behdad Esfahbod 50f489a0a0 Typo 2015-10-11 20:59:29 -04:00
Behdad Esfahbod ee9b0b6cb5 Fix another sanitize bug
Also discovered by "libFuzzer".
2015-10-09 14:23:15 -04:00
Behdad Esfahbod f396fbb000 Fix return value of sanitize when subformat is not readable
This is a fix on top of the previous issue fixed in
c917965b9e.

This was caught by "libFuzzer" testing.
2015-10-09 12:25:55 -04:00
Behdad Esfahbod 77a1a2bc18 Add hb_dispatch_context_t 2015-10-09 12:20:58 -04:00
Behdad Esfahbod 3e905e396b Add hb_font_set_parent()
No reason to not have it.  Makes life easier later.
We (hb-ft, hb-ot-font, etc) can use this API to inject new
parent into a font...
2015-10-08 12:51:02 -04:00
Behdad Esfahbod edeb3dabf4 [ft] Add version for new API 2015-10-08 12:47:15 -04:00
Behdad Esfahbod 2a9627c564 [ft] API: Add hb_font_[sg]et_load_flags() API
This changes the default load_flags of fonts created using
hb_ft_font_create() from NO_HINTING to DEFAULT.  Hope that doesn't
break too much client code.

Code calling hb_ft_font_set_funcs() is unaffected.
2015-10-07 17:39:37 -04:00
Behdad Esfahbod 3224a594dc Minor 2015-10-07 17:33:02 -04:00
Behdad Esfahbod 52b418555b Allow compiling with custom allocators
User can define hb_malloc_impl, etc, to name of custom allocator functions
that have the same signature as malloc.
2015-10-03 13:20:55 +01:00
Behdad Esfahbod 88da7bba9f Default font scale to face upem
Makes for a better default and avoids nasty inheritance issues.
See mailing list thread "Default hb_font_t scale".
2015-10-02 14:38:20 +01:00
Behdad Esfahbod 1866e17114 Make hb_font_create_sub_font() NOT make parent immutable
We don't rely on that.  However, whenever hb_font_make_immutable()
is called, it makes its parenting chain immutable.
2015-10-02 14:21:29 +01:00
Behdad Esfahbod 980e25cad2 Fix hb-ot-shape-normalize with empty buffer
Part of https://github.com/behdad/harfbuzz/issues/136
2015-10-02 08:21:12 +01:00
Behdad Esfahbod a5efaac4ff Replace a couple of malloc()s with calloc() 2015-10-02 08:02:29 +01:00
Behdad Esfahbod 26ba4d1e1f Fix segfault with empty buffer in hb_shape_plan_execute()
Move the empty-buffer check from hb_shape_full() to hb_shape_plan_execute().

Reported by Simon Cozens.
2015-10-02 07:25:52 +01:00
Behdad Esfahbod b47159011c Define return_trace()
Not functional change (expected!).
2015-09-29 14:57:02 +01:00
Behdad Esfahbod c917965b9e Add missing returns
Fixes possible invalid read of two bytes.

Reported by Behzad Najjarpour Jabbari, Secunia Research.
2015-09-29 14:45:35 +01:00
Behdad Esfahbod f3159ba514 Micro-optimize hb_language_from_string()
As measured / improved by Benson Limketkai.
2015-09-29 14:34:56 +01:00
Sascha Brawer f2ad935e19 Handle language tags that indicate phonetic IPA transcription
The BCP-47 registry defines a variant subtag "fonipa" that can be used
in combination with arbitrary other language tags. For example,
"rm-CH-fonipa-sursilv" indicates the Sursilvan dialect of Romansh
as used in Switzerland, transcribed used the International Phonetic
Alphabet.

http://www.iana.org/assignments/language-subtag-registry/language-subtag-registry
2015-09-29 14:32:06 +01:00
Behdad Esfahbod b8811429b6 Fix Since tags
Fixes https://github.com/behdad/harfbuzz/issues/103
2015-09-03 15:53:22 +04:30
Behdad Esfahbod 5d74ff02ab Fix Since: version tags on font and face APIs
A while back we marked every API as version:1.0.  We should fix them all
to reflect real version they were introduced.  This is a start.

Patch from Nikolay Sivov.
2015-09-03 14:55:59 +04:30
Behdad Esfahbod 5828c45d7a [indic] Add comments to merge_clusters calls 2015-09-01 16:34:12 +01:00
Behdad Esfahbod bdc8215949 [thai] Respect cluster-level > 0 2015-09-01 16:24:54 +01:00
Behdad Esfahbod 5b31fe383e [use] Merge /before/ reordering 2015-09-01 16:24:34 +01:00
Behdad Esfahbod 0d438f89bd [hangul] Merge /before/ reordering 2015-09-01 16:24:13 +01:00
Behdad Esfahbod f883de664f [OT] Merge /before/ reordering 2015-09-01 16:23:40 +01:00
Behdad Esfahbod c403d63200 [myanmar] Use buffer->sort() to sort cluster
This can possibly produce more granular clusters.
2015-09-01 16:15:25 +01:00
Behdad Esfahbod e995d33c10 [OT] Merge clusters when reordering marks for normalization
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=541608
and cluster test.
2015-09-01 16:13:32 +01:00
Behdad Esfahbod 93099748e3 Minor 2015-09-01 16:11:27 +01:00
Behdad Esfahbod 85846b3de7 Use insertion-sort instead of bubble-sort
Needed for upcoming merge-clusters fix.
2015-09-01 15:07:52 +01:00
Behdad Esfahbod 326b5ebf57 Poison freed objects such that double-free is detected
Previously we were setting refcount of freed objects to the inert value, which
was harmful because it caused further destroy()s of the freed object to NOT
call free() and hence hide the bug.  Indeed, after eb0bf3ae66 test-object
was double-free'ing objects and this was never caught on Linux.  It only was
caught as crashing on Mac.

Now we poison refcount upon freeing and check that it's valid whenever reading
it.  Makes test-object fail now.
2015-08-30 17:29:21 +01:00
Behdad Esfahbod 6578575cc8 [GPOS] Fix cursive connection with mix of RTL and non-RTL lookups
See thread "Issue with cursive attachment" started by Khaled.
Turned out fixing this wasn't as bad as I had assumed.  I like the
new code better; we now have a theoretical model of cursive
connections that is easier to reason about.
2015-08-25 20:29:36 +01:00
Behdad Esfahbod 58f2a73fb9 [GPOS] Rewrite cursive attachment slightly differently
In anticipation for upcoming fix for bug reported by
Khaled in thread "Issue with cursive attachment".
2015-08-25 18:58:24 +01:00
Behdad Esfahbod fdd1770e00 Add API/cmdline to show glyph extents when serializing buffer
New API: HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS

hb-shape now accepts --show-extents.

Patch from Simon Cozens.
2015-08-24 13:49:55 +01:00
Behdad Esfahbod 2cee5b68a0 [ot-font] Fix short-offset calculation 2015-08-24 13:45:12 +01:00
Behdad Esfahbod b50fcfa829 [ot-font] Implement glyph_extents() for TrueType fonts
This brings ot-fonts into almost-complete shape and mostly in par with
ft font.
2015-08-23 14:42:20 +01:00
Behdad Esfahbod 0299b45000 Make BYTE a real type 2015-08-21 12:44:36 +01:00
Behdad Esfahbod ed6962c795 [coretext] Use i32 instead of u32 as well
Shouldn't cause *any* functional changes, but is more correct.
2015-08-20 15:39:53 +01:00
Behdad Esfahbod 163c435f18 [uniscribe] Fix negative offsets
Ouch!
2015-08-20 15:39:06 +01:00
Behdad Esfahbod 958c268fa3 [coretext] Add TODO item 2015-08-19 13:22:12 +01:00
Behdad Esfahbod 7c5bee09d9 [uniscribe] Fix font scale handling
By default shape at upem (or ppem), and scale results.
Similar to work done in CoreText backend, but using upem as default.
2015-08-19 13:20:31 +01:00
Behdad Esfahbod 902e74a098 Commented-out code to print buffer before each lookup
To be turned into a useful HB_DEBUG_SHAPE infrastructure...
2015-08-18 18:55:03 +01:00
Behdad Esfahbod 75504a5048 Allow serializing buffer with output-buffer being used
Ie, don't call get_positions() if positions are not
requested for serialization.
2015-08-18 18:47:02 +01:00
Behdad Esfahbod e47b772a56 [ot] Change buffer content type right after we map to glyphs
Needed for upcoming debug output changes.
2015-08-18 18:42:47 +01:00
Behdad Esfahbod ddd6bf12f1 Don't declare dependency on freetype in harfbuzz.pc
See comments.
2015-08-18 15:55:09 +01:00
Behdad Esfahbod 2c8b3b2e53 [debug] Print lookup index in debug-apply output 2015-08-18 14:36:43 +01:00
Behdad Esfahbod 50ad7788ee [coretext] Remove assert that kicks in on Mac OS 10.6
http://crbug.com/419769
2015-08-18 10:22:16 +01:00
Behdad Esfahbod 2b646fa07f Remove unused function 2015-08-17 16:03:28 +02:00
ThePhD 23237b0279 Last apparent boolean fix! 2015-08-14 01:19:08 -04:00
ThePhD 5c99cf93d6 Merge branch 'master' into vc++-fixes 2015-08-14 01:02:00 -04:00
Behdad Esfahbod 539a610e2e Add Libs.private and Requires.private to harfbuzz.pc
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=64501
2015-08-11 12:58:49 +02:00
jfkthame c7dfe316f8 Don't rely on .cluster in _hb_ot_shape_normalize()
Fixes https://github.com/behdad/harfbuzz/pull/124
2015-08-09 18:26:27 +02:00
jfkthame 9099e48e29 Don't rely on .cluster field in fallback_position
Fixes tests/cluster.

Fixes https://github.com/behdad/harfbuzz/pull/123
2015-08-08 18:03:38 +02:00
Behdad Esfahbod bd22a5cfae Bug 91559 - HarfBuzz 1.0.1: Inconsistent DLL files specified/created...
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=91559
2015-08-07 11:13:27 +02:00
Behdad Esfahbod f1c20e1ba5 [USE] Fix out-of-bounds static array access 2015-07-27 12:16:02 +02:00
Behdad Esfahbod 260442346a 1.0.0 2015-07-26 23:39:10 +02:00
Behdad Esfahbod df6cb84449 Merge branch 'use' 2015-07-26 19:40:55 +02:00
Behdad Esfahbod 23e56e088a Fix broken sentence 2015-07-25 17:38:21 +02:00
Grigori Goronzy 91a2e5d287 Update UCDN to upstream commit 8af93f30
This adds support for Unicode 8.0 and fixes a bug with wrong properties
for ranges of codepoints.
2015-07-25 17:32:16 +02:00
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
Behdad Esfahbod f327aacfa1 [ot] Minor 2015-07-23 11:32:59 +01:00
Behdad Esfahbod d78463c801 Minor debug output fix 2015-07-23 10:11:35 +01:00
Behdad Esfahbod d99f50bde0 Add missing TRACE_RETURN 2015-07-23 10:08:48 +01:00
Behdad Esfahbod 2dc8e3f470 [ot] Add missing return! 2015-07-23 10:07:21 +01:00
Behdad Esfahbod 8cfbc304ee Fix hide-default-ignorables after f0010dfd01
We can't delete things before hb_ot_layout_position_finish().  So,
just zero the advance before it, and remove later.
2015-07-22 18:41:10 +01:00
Behdad Esfahbod 2dbd3d29d6 Fix hide-ignorables if font doesn't have space glyph
Was broken by 82b521aeb7, as we have
positioning data by then and can't use the output buffer.  Ouch!
2015-07-22 18:29:47 +01:00
Behdad Esfahbod 4ba796b26e Refactor _hb_glyph_info_is_default_ignorable() 2015-07-22 17:41:31 +01:00
Behdad Esfahbod f0010dfd01 [ot] Hide default-ignorables before finishing off positioning
For example, fixes the following sequence with Arial XP:
628 25cc 651 25cc 64e 3a 20 628 651 34f 64e
628 25cc 64e 25cc 651 3a 20 628 64e 34f 651

Discovered as part of:
https://bugs.freedesktop.org/show_bug.cgi?id=85873
2015-07-22 17:36:23 +01:00
Behdad Esfahbod 376d587f36 Implement more granular cluster-merging
TODO: Documentation.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=71445
2015-07-22 16:51:12 +01:00
Behdad Esfahbod a60e2cfa39 [ot] Don't rely on cluster numbers for ensure_native_direction() 2015-07-22 15:49:08 +01:00
Behdad Esfahbod 701112dad9 [ot] Simplify form_clusters() 2015-07-22 15:42:20 +01:00
Behdad Esfahbod 7b8b63adc5 [ot] Don't mirror character if font doesn't support mirrored character! 2015-07-22 15:24:26 +01:00
Behdad Esfahbod 97d7c3a100 [graphite2] Fix bunch of stuff
Based on patch from Martin Hosken, with review from Jonathan and I.
2015-07-22 14:28:25 +01:00
Behdad Esfahbod ea7f8414e3 [graphite2] Enlarge buffer for output glyphs! 2015-07-22 13:53:45 +01:00
Behdad Esfahbod 9cd59db1af [USE] Implement topographical features for non-Arabic-joining scripts
This works per-syllable as per the spec, but we think it should be per
spacing/base/??? glyph instead.
2015-07-22 13:31:07 +01:00
Behdad Esfahbod ecb0b24ef3 Use foreach_cluster in Indic shaper 2015-07-22 12:02:09 +01:00
Behdad Esfahbod 56f71ff988 Use foreach_syllable in Myanmar shaper 2015-07-22 11:58:11 +01:00
Behdad Esfahbod ac596511a8 Add foreach_syllable
Use it in USE.
2015-07-22 11:54:02 +01:00
Behdad Esfahbod 8ba9e68968 [USE] Do Arabic-like shaping 2015-07-22 11:17:34 +01:00
Behdad Esfahbod 9daf2dfb6b Add hb-ot-shape-complex-arabic-private.hh 2015-07-22 10:49:13 +01:00
Behdad Esfahbod a51a661fe1 [USE] Only reorder the first component of a split left mark 2015-07-21 18:24:21 +01:00
Behdad Esfahbod a08a278b15 [USE] Don't compose split matras
Same logic as in Indic shaper.
2015-07-21 18:09:40 +01:00
Behdad Esfahbod 21cb08a417 Remove unused SEA shaper 2015-07-21 17:47:06 +01:00
Behdad Esfahbod db1e9cdd41 Retire SEA shaper in favor of USE 2015-07-21 17:46:06 +01:00
Behdad Esfahbod 87dde9c647 [USE] Only use USE shaper if script system is not DFLT
Same logic as Indic and SEA.
2015-07-21 17:31:43 +01:00
Behdad Esfahbod 29832d797f Route misc untested scripts through USE shaper instead of Indic
These were never tested with Indic shaper, and indeed wouldn't work there
because they didn't have their viramas and other config defined.  They are
all also supported by MS through USE, so route them there.
2015-07-21 17:24:18 +01:00
Behdad Esfahbod 40c4a991c7 [USE] Implement dotted-circle
This makes USE feature-complete as far as the Indic-like features
are concerned.
2015-07-21 17:14:54 +01:00
Behdad Esfahbod 7ce03ebe7c [USE] Move pref 2015-07-21 16:55:26 +01:00
Behdad Esfahbod 2d4b62ead9 [USE] Fix-up variation selectors and word joiner in table 2015-07-21 16:46:37 +01:00
Behdad Esfahbod ad7178227f [USE] Use a couple warnings 2015-07-21 16:43:27 +01:00
Behdad Esfahbod a85c4da9b1 [USE] Move rphf 2015-07-21 16:07:10 +01:00
Behdad Esfahbod 5b5617e066 Add FLAG_UNSAFE()
Unused right now.
2015-07-21 15:52:15 +01:00
Behdad Esfahbod f8160a4959 Add FLAG_SAFE() for values known to be small-enough
And add check to FLAG()
2015-07-21 15:50:02 +01:00
Behdad Esfahbod 366aeaad00 Add note re ASSERT_STATIC_EXPR_ZERO() 2015-07-21 15:45:48 +01:00
Behdad Esfahbod d6adca9fbb Remove unused macro ASSERT_STATIC_EXPR() 2015-07-21 15:17:27 +01:00
Behdad Esfahbod 1025e1a9e7 Use unsigned in FLAG() 2015-07-21 15:05:35 +01:00
Behdad Esfahbod cf59c7589c [USE] Use use_category() for rphf/pref memory 2015-07-21 14:51:45 +01:00
Behdad Esfahbod 595936ec25 [USE] Hook of rphf and pref custom processing
Still no reordering.
2015-07-21 14:15:35 +01:00
Behdad Esfahbod ba72801325 [USE] Add CGJ to table 2015-07-21 11:57:23 +01:00
Behdad Esfahbod 4febed61ed [USE] Set up features 2015-07-21 10:38:48 +01:00
Behdad Esfahbod 52a9577956 [USE] Hook up new scripts to USE shaper
Don't reroute scripts that we were routing to other shapers
before (just yet).
2015-07-21 10:02:04 +01:00
Behdad Esfahbod b4c0829bc1 [USE] Remove unused Unicode data enums from USE C++ side 2015-07-21 09:31:19 +01:00
Behdad Esfahbod 44910cef62 [USE] Finish converting Unicode positional categories to USE
Even compiles.
2015-07-20 18:01:10 +01:00
Behdad Esfahbod ad72555252 [USE] Map from Unicode data to USE syllabic categories
Positional sub-categories not applied yet.
2015-07-20 17:00:06 +01:00
Behdad Esfahbod 20e246e674 [USE] Start moving Unicode-to-USE mapping into Python code 2015-07-20 15:56:19 +01:00
Behdad Esfahbod eb74535cc2 [USE] Fix Number clusters
The spec wrongly has "H" where "HN" is meant.
2015-07-20 15:33:25 +01:00
Behdad Esfahbod a9663958fe [USE] Start putting together the shaper body 2015-07-20 14:24:55 +01:00
Behdad Esfahbod e0eabd7f67 [USE] Put a Ragel machine together
Grammar from the spec!
2015-07-20 13:50:38 +01:00
Behdad Esfahbod fd74b939b1 Minor 2015-07-20 13:30:45 +01:00
Behdad Esfahbod 5e5c8560cc [USE] Minor optimization of USE table 2015-07-20 12:01:20 +01:00
Behdad Esfahbod c48ff28852 [USE] Build Universal Shaping Engine data table from Unicode 8 files 2015-07-20 11:46:17 +01:00
Behdad Esfahbod e2c95116e1 [USE] Add Universal Shaping Engine to Makefile 2015-07-20 11:33:27 +01:00
Behdad Esfahbod 41a29af805 Update Arabic shaping table for Unicode 8.0 2015-07-15 01:39:57 +01:00
Behdad Esfahbod 64a2726e2c Add Unicode 8.0 scripts
Based on https://bugzilla.mozilla.org/show_bug.cgi?id=1183209
2015-07-15 01:36:39 +01:00
Behdad Esfahbod 9ae156b768 Fix pragma usage
https://bugs.freedesktop.org/show_bug.cgi?id=91228

Commit cdcdfe61b9 changed two `#pragma
message` to `#pragma error` in hb-unicode.cc, however MSVC uses #error,
just like the #else branch. `#pragma error` is an unknown pragma so
MSVC does not fail the build because of it, which I believe was the
intention of that commit.

If it's meant to be an #error, then the #ifdef for _MSC_VER can be
removed entirely.
2015-07-05 22:43:17 +01:00
ThePhD 8ad89f057d Spelling words is not my strong point. 2015-06-23 09:09:24 -04:00
ThePhD e0a828ecbd Back to using regular `strdup`, with an `hb-private.hh` fix that special-cases VC++'s
definition and usage of the words
2015-06-23 09:07:17 -04:00
ThePhD 8e545d5961 Fix all VC++ warnings and errors in the current commit's builds. 2015-06-22 22:29:04 -04:00
Behdad Esfahbod 5f13bbd9d4 When removing default-ignorables, merge clusters
Fixes test-shape, and:
https://code.google.com/p/chromium/issues/detail?id=497578
2015-06-19 13:31:49 -07:00
Behdad Esfahbod 82b521aeb7 Rewrite hide_default_ignorables
Separate the loops for the two cases of replacing with space
and deleting.  For deleting, use the out-buffer machinery.

Needed for upcoming cluster merge fix.
2015-06-19 13:26:03 -07:00
Behdad Esfahbod 351f68f4e0 [bindings] Fix hb_language_get_default() and hb_ot_tag_to_language()
Part of https://github.com/behdad/harfbuzz/issues/91
2015-06-12 17:46:06 -07:00
Behdad Esfahbod a5e4f6d608 Fix warnings: "member call on null pointer of type"
https://bugzilla.mozilla.org/show_bug.cgi?id=1167119
2015-06-10 10:57:46 -07:00
Behdad Esfahbod 8dacb7f8b4 Add include check to hb-ot-font.h 2015-06-03 11:53:42 -07:00
Sascha Brawer 01c3a88543 Fix "Since:" tags
Based on data from http://upstream-tracker.org/versions/harfbuzz.html
Resolves #103
2015-06-01 13:25:27 +02:00
Behdad Esfahbod f1b44303df Fix unary minus operator applied to unsigned int
Applying unary minus operator to unsigned int causes the following
warning on MSVS:

  warning C4146: unary minus operator applied to unsigned type, result still unsigned

Based on patch from Koji Ishi.

Fixes https://github.com/behdad/harfbuzz/pull/110
2015-05-21 14:00:15 -07:00
Behdad Esfahbod 1ae6cdb365 [gobject] Remove hb_language_t workarounds for g-i shortcomings
Using latest gobject-introspection, I don't seem to be having this
problem anymore:

  https://bugzilla.gnome.org/show_bug.cgi?id=707656

Removing that kludge makes language_t behave more like the way I expect it
in Python.

Also fixes:
https://github.com/behdad/harfbuzz/issues/91
2015-05-19 17:42:30 -07:00
Behdad Esfahbod ece434fa0f [gobject] Macroize value types
Fixes user_data_t
2015-05-19 17:20:58 -07:00
Behdad Esfahbod 9df099b483 [ft] Don't set *glyph in get_glyph() if glyph not found 2015-05-18 18:37:46 -07:00
Behdad Esfahbod 5801521532 Add note re OpenType 1.7 language tags 2015-05-06 00:40:31 -07:00
Roozbeh Pournader f6266ad291 [minor] Remove comment about Navajo OpenType code.
Apparently the code is already standardized:
https://www.microsoft.com/typography/otspec/languagetags.htm
2015-05-05 22:39:04 -07:00
Behdad Esfahbod 42b00118ea Merge pull request #102 from roozbehp/master
Add OpenType language tag 'NAV ' for Navajo.
2015-05-05 14:49:47 -07:00
Behdad Esfahbod be66ec5373 Use TRUE/FALSE instead of true/false in docs 2015-04-30 18:27:13 -04:00
Khaled Hosny d055e1fc78 Some attempt into initial hb-shape documentation
Very anaemic, needs to descripe the format understood by
hb_feature_from_string() etc., but it is just start.
2015-04-30 18:24:45 -04:00
Behdad Esfahbod 81bedda58c New API: hb_buffer_reverse_range() 2015-04-30 13:04:16 -04:00
Roozbeh Pournader cfeb0562eb Add OpenType language tag 'NAV ' for Navajo.
The code is not standardized yet, but is used in some Google fonts.
2015-04-29 09:32:42 -07:00
Jonathan Kew f724cc3516 Don't apply Arabic shaping to vertical text. 2015-04-24 12:19:02 -07:00
Behdad Esfahbod 97942420bb Update check-libstdc++ for clang 2015-04-23 18:56:24 -07:00
Behdad Esfahbod 39851ce84e [coretext] Oops; fix issue number for previous commit 2015-04-21 19:23:27 -07:00
Behdad Esfahbod 24f17afeaf [coretext] Fix positioning with trailing whitespace
Fixes https://code.google.com/p/chromium/issues/detail?id=476913
2015-04-21 19:21:32 -07:00
Behdad Esfahbod dba482fc44 [ot-font] Accept MS Symbol cmap if nothing else found 2015-04-17 13:08:08 -07:00
Behdad Esfahbod 3029e8b59d Revert "Add MSVC pragma for UTF-8 source code"
This reverts commit 89cbd4d953.

See discussion:
https://bugzilla.gnome.org/show_bug.cgi?id=747772
2015-04-14 13:32:22 -07:00
Behdad Esfahbod 89cbd4d953 Add MSVC pragma for UTF-8 source code
Not sure we have any right now; motivated by this:
https://bugzilla.gnome.org/show_bug.cgi?id=747772
2015-04-13 12:27:08 -07:00
Behdad Esfahbod 713f99ff61 Merge pull request #99 from khaledhosny/introspection-fixes2
More ntrospection fixes
2015-04-10 14:34:05 -07:00
Khaled Hosny 22524a514f [bindings] Fix hb_buffer_get_segment_properties
Annotate the output parameter.
2015-04-10 22:57:38 +02:00
Behdad Esfahbod 1086f21e54 Merge branch 'hb-fc' 2015-04-10 12:21:04 -07:00
Khaled Hosny 04f89e8f7d [bindings] Fix ownership of returned hb_language_t
It should not be freed by the caller.
2015-04-10 18:17:02 +02:00
Konstantin Ritt 855a5d7cb8 Fix build on WEC2013
Based on patch from Björn Breitmeyer
2015-04-10 17:18:01 +04:00
Behdad Esfahbod eb0bf3ae66 Relax inert checks
Previously, when creating an object from inert inputs (eg:
"hb_font_create(hb_face_get_empty())") we returned the inert
empty object.  This is not helpful as there are legitimate
usecases to do that.

We now never return the inert object unless allocation failed.

Tests are revised to reflect.
2015-04-09 19:16:57 -07:00
Behdad Esfahbod 9c974360fe Minor rename 2015-04-09 12:04:14 -07:00
Behdad Esfahbod f3b170bdd9 Minor 2015-04-08 16:26:24 -07:00
Behdad Esfahbod 2958f2c147 Fixup 2015-04-08 16:26:16 -07:00
Behdad Esfahbod b931e0b0ce Fix warnings
Part of https://github.com/behdad/harfbuzz/pull/68
2015-04-08 14:43:33 -07:00
Behdad Esfahbod cdcdfe61b9 Err, instead of warn, if mutex / atomic / unicode funcs are missing
Hopefully this results in fewer badly built HarfBuzz integrations.
2015-04-08 13:25:04 -07:00
Behdad Esfahbod fc3c59a1d7 Fix unused var warnings 2015-04-08 13:04:29 -07:00
Konstantin Ritt 3f174cd020 Minor refactoring to the atomics implementation
s/atomic_int/atomic_int_impl/ and s/atomic_ptr/atomic_ptr_impl/
to bring it in par with hb_mutex_impl_t, then re-introduce
hb_atomic_int_t as a wrapper around hb_atomic_int_impl_t.

In hb_reference_count_t, make it clear the non-atomic get and set
are intentional due to nature of the cases they are used in
(comparison to -1 and the debug output/tracing).
2015-04-08 13:04:22 -07:00
Behdad Esfahbod 24930d544e Minor 2015-04-08 12:52:06 -07:00
Behdad Esfahbod 45a8b46f47 Allow implementing atomic and mutex ops in config
Motivated by
https://github.com/behdad/harfbuzz/pull/92
2015-04-08 12:49:38 -07:00
Behdad Esfahbod 3fe4e92bc5 Minor 2015-04-08 12:49:23 -07:00
Behdad Esfahbod ce01ad7c2f MSVC 2015 supports snprintf and not _snprintf 2015-04-01 11:05:59 -07:00
Behdad Esfahbod 560718862f Move WinCE define to better place 2015-04-01 11:04:58 -07:00
Behdad Esfahbod aee685086c Fix VC++ /analyze warnings
out\debug\hb-buffer-deserialize-text.rl(47) : warning C6001: Using
uninitialized memory 'pos'.
2015-03-26 14:13:53 -04:00
Khaled Hosny a394bb6670 [bindings] Fix *_from_string functions
Without the element-type they will be getting garbage, at least with
Python.
2015-03-22 20:29:10 +02:00
Behdad Esfahbod 9e401f6890 Fix reverse_range() for empty range
Fixes coretext notdef loop consisting of all default_ignorable glyphs

https://code.google.com/p/chromium/issues/detail?id=464755
2015-03-20 16:08:38 -04:00
Behdad Esfahbod 98e3ea8e34 Fix hb-uniscribe build 2015-03-04 12:03:39 -08:00
Behdad Esfahbod 8ac345e5c0 Fix reverse_range() to only reverse alt array if positions are used
In hb-coretext, when we were using scratch buffer for book-keeping,
a reverse_range() caused by the notdef-insertion loop could mess up
our log_clusters.  Ouch!
2015-03-02 16:06:55 -08:00
Behdad Esfahbod 5f541f8f7b Minor refactoring 2015-02-25 15:43:35 -08:00
Behdad Esfahbod ef79bdf73b Minor 2015-02-25 15:43:35 -08:00
Behdad Esfahbod 68e04afbb1 Typo 2015-02-25 15:43:34 -08:00
Behdad Esfahbod 55553699b3 Minor 2015-02-25 15:43:34 -08:00
Behdad Esfahbod 5175300fba [layout] Fix comparison of GlyphID and hb_codepoint_t
Before, the IntType::cmp functions providing this and was truncating
the hb_codepoint_t to 16bits before comparison.  I have no idea how
this was never discovered, and I'm too lazy to try to reproduce this
with Pango (which uses non-16bit codepoint numbers for missing glyphs).
2015-02-25 15:43:34 -08:00
Behdad Esfahbod 7cce809cb1 Remove unused (and wrong as of a few commits ago) cmp() function 2015-02-25 15:43:34 -08:00
Behdad Esfahbod 8e3d4bae03 Minor 2015-02-25 15:43:33 -08:00
Behdad Esfahbod f47cf1f12d Minor 2015-02-25 15:43:33 -08:00
Behdad Esfahbod 640b66c634 [layout] If lookup has only one subtable, move the forward loop down to subtable
I was hoping to see a nice speedup, but it resulted in a very minor one.
2015-02-25 15:43:33 -08:00
Behdad Esfahbod e2f50f2a7e [layout] Add apply_forward / apply_backward 2015-02-25 15:43:32 -08:00
Behdad Esfahbod 1d4a328472 [layout] Remove unneeded return value from apply() 2015-02-25 15:43:32 -08:00
Behdad Esfahbod bbdd6fd21c Minor simpilfy BEInt 2015-02-25 15:43:32 -08:00
Behdad Esfahbod 88a399acdc Optimize IntType comparison to avoid branches for 16bit numbers 2015-02-25 15:43:32 -08:00
Behdad Esfahbod 37de2d5331 Minor simplify IntType 2015-02-25 15:43:31 -08:00
Behdad Esfahbod bd047d3b7f [layout] Minor 2015-02-25 15:43:31 -08:00
Behdad Esfahbod b9d3f60520 [layout] Minor 2015-02-25 15:43:31 -08:00
Behdad Esfahbod 1a2322134a [layout] Don't check glyph props against lookup flags when recursing
Shouldn't be needed.  I have a hard time imagining this breaking any
legitimate use case.
2015-02-25 15:43:30 -08:00
Behdad Esfahbod 095a1257cc [layout] Port sanitize() to use dispatch()
Needed some rework of Extension table.  Hopefully I got it right, and
the new template usage doesn't break any compilers...
2015-02-25 15:43:30 -08:00
Behdad Esfahbod 758fb20630 Remove unused macro 2015-02-25 15:43:30 -08:00
Behdad Esfahbod 40c58923cb [layout] Refactor Lookup::dispatch() 2015-02-25 15:43:30 -08:00
Behdad Esfahbod 70366f5d19 [layout] Refactor get_subtable() 2015-02-25 15:43:29 -08:00
Behdad Esfahbod f72f326aea Minor 2015-02-25 15:43:29 -08:00
Behdad Esfahbod 8e36ccfd4f [layout] Use dispatch() for add_coverage() 2015-02-25 15:43:29 -08:00
Behdad Esfahbod 50b8dc79da [layout] Add may_dispatch()
No functional change right now.
2015-02-25 15:43:29 -08:00
Behdad Esfahbod de2118ed7a Make sanitize() a const method
This makes a lot of code safer.  We only try modifying the object in one
place, after making sure it's safe to do so.  So, do a const_cast<> in
that one place...
2015-02-25 15:43:28 -08:00
Behdad Esfahbod 6759ed95a3 Minor 2015-02-25 15:43:28 -08:00
Behdad Esfahbod 6b599dac1f Remove unnecessary check in sanitize 2015-02-25 15:43:28 -08:00
Behdad Esfahbod 365576d246 [layout] Allocate iters in the context
Can be further optimized, but I think I didn't break anything.

Saves another 3% off Roboto shaping.
2015-02-25 15:43:28 -08:00
Behdad Esfahbod 514564f544 [layout] Move skippy_iter setup from constructor into init() 2015-02-25 15:43:27 -08:00
Behdad Esfahbod b051be542a [lookup] Add skippy_iter.reset()
Towards reducing the cost of initializing skippy_iter()
2015-02-25 15:43:27 -08:00
Behdad Esfahbod 2cecc38c7c [layout] Shuffle code around 2015-02-25 15:43:27 -08:00
Behdad Esfahbod 696266981d [layout] Merge forward and backward iterators 2015-02-25 15:43:26 -08:00
Behdad Esfahbod 1f038eec3c [layout] Fix backward reject()
Has no functional effect since reject was never used with
match_glyph_data.
2015-02-25 15:43:26 -08:00
Behdad Esfahbod 37d13acd8d [layout] Remove some unnecessary checks in skippy 2015-02-25 15:43:26 -08:00
Behdad Esfahbod baa14e1814 [lookup] Don't initialize skippy if coverage match fails
Currently:

  - Initializing skippy is very expensive,

  - Our lookup accelerator (using set-digests) can be very ineffecite,

As such, we end up many times initializing skippy but then failing
coverage check.  Reordering fixes that.

When, later, we fix our accelerator to have truly small false-positive
rate (for example by using the frozen-sets), then we might want to
reorder these checks such that we wouldn't calculate coverage number
if skippy is going to fail.

This shows a 5% speedup with Roboto already.
2015-02-25 15:43:26 -08:00
Behdad Esfahbod 7788993bc1 [layout] Use setter method to set c->lookup_props 2015-02-25 15:43:25 -08:00
Behdad Esfahbod f4ee48fd7b [layout] Remove unused wrapper method 2015-02-25 15:43:25 -08:00
Behdad Esfahbod 7b7129c7a9 Add hb_frozen_set_t
I experimented with replacing use of hb_set_digest_t with this new
hb_frozen_set_t, hoping to get a huge speedup for busy lookups
(like kern lookup in Roboto), but I only got 6% speendup in Roboto
and 4% in NotoNastaliqUrduDraft :(.
2015-02-25 15:43:25 -08:00
Behdad Esfahbod 241eac9559 Hide internals of lookup accelerators 2015-02-25 15:43:25 -08:00
Konstantin Ritt 9768e651be Fix build with MSVC on CE
This code is C++ only. There isn't a single C++ compiler that fails to
understand the "inline" keyword, since it's required by C++98. Any
compiler older than C++98 is likely to choke on the template usage
further down, so this isn't necessary.

Moreover, the C++ standard says you cannot define macros.
[lib.macro.names] says "Nor shall such a translation unit define macros
for names lexically identical to keywords." -- technically, it's a
promise that the Standard Library headers won't do it, the wording means
that the entire translation unit won't do it, which implies no source
can do it.

MSVC complains about it:
fatal error C1189: #error : The C++ Standard Library forbids macroizing
keywords. Enable warning C4005 to find the forbidden macro.

Author: Thiago Macieira <thiago.macieira@intel.com>
2015-02-14 00:58:51 +04:00
Behdad Esfahbod 7888a6b07a [ft] Handle negative scales with vertical writing 2015-01-28 12:40:40 -08:00
Behdad Esfahbod 982d94eaa2 [coretext] Don't generate notdef glyph for default-ignorables
As discovered on Chrome Mac:
https://code.google.com/p/chromium/issues/detail?id=452326
2015-01-28 10:51:33 -08:00
Behdad Esfahbod 6917a045fd [coretext] Unbreak glyph positioning in presence of notdef runs
As discovered on Chrome Mac:
https://code.google.com/p/chromium/issues/detail?id=452326

This was originally broken in:

	commit 5a0eed3b50
	Author: Behdad Esfahbod <behdad@behdad.org>
	Date:   Mon Aug 11 23:47:16 2014 -0400

	    [coretext] Implement vertical shaping
2015-01-28 10:50:54 -08:00
Behdad Esfahbod 1eff435023 Minor optimization 2015-01-27 12:26:04 -08:00
Konstantin Ritt 675956aca0 Do not leak hb_language_t on hb_language_item_t destruction 2015-01-27 10:06:56 -08:00
Konstantin Ritt b306f9674a Minor improvement to HB_SHAPER_DATA_DESTROY 2015-01-27 10:02:34 -08:00
Behdad Esfahbod 61820bc4ca [API] Add hb_buffer_add_latin1()
This is by no ways to promote non-Unicode encodings.  This is an entry
point that takes Unicode codepoints that happen to all be the first
256 characters and hence fit in 8bit strings.  This is useful eg in Chrome
where strings that can fit in 8bit are implemented that way, and this
avoids copying into UTF-8 or UTF-16.

Perhaps we should rename this to hb_buffer_add_codepoints8().  I'm also
curious if anyone would be really interested in hb_buffer_add_codepoints16().

Please discuss!
2015-01-26 14:25:52 -08:00
Behdad Esfahbod 78c6e86c04 Fix hb_buffer_add_codepoints to actually NOT validate 2015-01-26 14:08:36 -08:00
Konstantin Ritt f3537b620b Move some code around
Just to keep Windows specific workarounds in a single place.
2015-01-25 09:50:51 +04:00
Konstantin Ritt afb62d88d7 Do not define MemoryBarrier on WinCE
There is a _HBMemoryBarrier() wrapper function that emulates
MemoryBarrier() behavior when it is not defined.
2015-01-25 08:16:26 +04:00
Konstantin Ritt 7db326a15b Fix build on WinRT
There is no environment (like WinCE) and the basic version
of InitializeCriticalSection is unsupported.

https://codereview.qt-project.org/#/c/92496/
2015-01-25 08:13:24 +04:00
Behdad Esfahbod a319d0777b [ft] Handle negative x_scale / y_scale 2015-01-23 12:44:24 -08:00
Behdad Esfahbod b0b38bb892 [coretext] Fix positioning of notdef 2015-01-21 19:19:33 -08:00
Behdad Esfahbod 70622e5089 [coretext] Fix scaling
Before we were not accounting for possible differences in x_scale and
y_scale, as well as the signs of those.  All should be in good shape
now.
2015-01-21 18:51:42 -08:00
Behdad Esfahbod 221ba02b08 [coretext] Use vertical advance for notdef in vertical direction 2015-01-21 18:51:42 -08:00
Behdad Esfahbod 7988da24c5 Add convenience make target "make lib" in src/ 2015-01-21 18:33:50 -08:00
Behdad Esfahbod 67dfa8c7c2 When matching second glyph of kerning pairs, use bsearch
Roboto has glyphs (like 'F') that have 200 kerning pairs.
Add a handcoded bsearch instead of previous linear search.

This doesn't show much speedup though, apparently we spend the
bulk of the time somewhere before here.
2015-01-19 17:00:31 -08:00
Behdad Esfahbod e9f5c65be0 [bindings] Minor 2015-01-19 16:15:32 -08:00