7793aad946
Normalize various spaces to space if font doesn't support
...
This resurrects the space fallback feature, after I disabled
the compatibility decomposition. Now I can release HarfBuzz
again without breaking Pango!
It also remembers which space character it was, such that later
on we can approximate the width of this particular space
character. That part is not implemented yet.
We normalize all GC=Zs chars except for U+1680 OGHA SPACE MARK,
which is better left alone.
2015-11-04 15:51:41 -08:00
8565839480
Protect against possible invalid-memory access after OOM
2015-11-04 14:46:52 -08:00
4cc80bed25
Fix typo!
...
Ouch! Fortunately that function was unused.
2015-11-04 14:46:10 -08:00
9ac4b9656d
Add Unicode space category
...
Unused so far.
2015-11-04 14:19:25 -08:00
8249ec3f86
Make top-byte of unicode_props available to be used differently per-GC
2015-11-04 13:26:17 -08:00
cc5d3a3388
Towards using top-byte of unicode-props for more things
2015-11-04 13:22:33 -08:00
2f38dde5a1
Add _hb_glyph_info_is_unicode_mark()
...
Unused right now.
2015-11-04 13:17:33 -08:00
90d75f93bb
Tighten ccc-setting a bit and document it
2015-11-03 12:58:12 -08:00
df698f3299
[ot-font] Fix hmtx table length checking, *again*
...
Exactly the same problem that I fixed in
63ef0b41dc67f8821fb2https://github.com/behdad/harfbuzz/issues/139#issuecomment-153449473
Fixes https://github.com/behdad/harfbuzz/issues/156
2015-11-03 12:15:12 -08:00
ed2024ef93
[perf] Micro-optimize
2015-11-02 18:03:38 -08:00
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
8259669fbd
Minor
2015-11-02 17:44:05 -08:00
9382c471ea
Combine unicode_props0/1 into a uint16
...
Slightly faster. In prep for more changes.
2015-11-02 17:36:51 -08:00
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
5ba450407b
Make max context-length and max nesting level configurable
...
...at compile time.
2015-11-02 15:43:39 -08:00
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
672ca3b4e6
Use templates for making sure expression is constant
2015-10-26 14:05:05 -07:00
5c8174eda3
Update comments for removal of compat decompositions
2015-10-21 18:51:40 -02:00
f679970040
Disable compatibility decomposition usage during normalization
...
Fixes https://github.com/behdad/harfbuzz/issues/152
2015-10-21 17:20:55 -02:00
ce889189c1
Fix two more -Wshadow warnings
...
https://bugzilla.mozilla.org/show_bug.cgi?id=1215894
2015-10-21 11:23:12 -02:00
4a6b1eedbb
Fix one more -Wshadow warning
...
https://bugzilla.mozilla.org/show_bug.cgi?id=1215894
2015-10-21 11:20:55 -02:00
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
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
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
305d2fbf5a
Add HB_FALLTHROUGH
...
Borrowed from https://bugzilla.mozilla.org/show_bug.cgi?id=1215411
2015-10-21 11:04:28 -02:00
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 2a9627c564https://github.com/behdad/harfbuzz/issues/143
2015-10-15 20:20:22 -03:00
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
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
ed13e2ce50
[ot-font] Fix leak
...
https://github.com/behdad/harfbuzz/issues/139#issuecomment-147616887
2015-10-13 10:32:56 -03:00
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
cc6ea308d4
Extern "C" custom-allocator declerations
2015-10-12 17:21:52 -04:00
50f489a0a0
Typo
2015-10-11 20:59:29 -04:00
ee9b0b6cb5
Fix another sanitize bug
...
Also discovered by "libFuzzer".
2015-10-09 14:23:15 -04:00
f396fbb000
Fix return value of sanitize when subformat is not readable
...
This is a fix on top of the previous issue fixed in
c917965b9e
2015-10-09 12:25:55 -04:00
77a1a2bc18
Add hb_dispatch_context_t
2015-10-09 12:20:58 -04:00
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
edeb3dabf4
[ft] Add version for new API
2015-10-08 12:47:15 -04:00
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
3224a594dc
Minor
2015-10-07 17:33:02 -04:00
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
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
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
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
a5efaac4ff
Replace a couple of malloc()s with calloc()
2015-10-02 08:02:29 +01:00
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
b47159011c
Define return_trace()
...
Not functional change (expected!).
2015-09-29 14:57:02 +01:00
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
f3159ba514
Micro-optimize hb_language_from_string()
...
As measured / improved by Benson Limketkai.
2015-09-29 14:34:56 +01:00
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
b8811429b6
Fix Since tags
...
Fixes https://github.com/behdad/harfbuzz/issues/103
2015-09-03 15:53:22 +04:30
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
5828c45d7a
[indic] Add comments to merge_clusters calls
2015-09-01 16:34:12 +01:00
bdc8215949
[thai] Respect cluster-level > 0
2015-09-01 16:24:54 +01:00
5b31fe383e
[use] Merge /before/ reordering
2015-09-01 16:24:34 +01:00
0d438f89bd
[hangul] Merge /before/ reordering
2015-09-01 16:24:13 +01:00
f883de664f
[OT] Merge /before/ reordering
2015-09-01 16:23:40 +01:00
c403d63200
[myanmar] Use buffer->sort() to sort cluster
...
This can possibly produce more granular clusters.
2015-09-01 16:15:25 +01:00
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
93099748e3
Minor
2015-09-01 16:11:27 +01:00
85846b3de7
Use insertion-sort instead of bubble-sort
...
Needed for upcoming merge-clusters fix.
2015-09-01 15:07:52 +01:00
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
2015-08-30 17:29:21 +01:00
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
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
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
2cee5b68a0
[ot-font] Fix short-offset calculation
2015-08-24 13:45:12 +01:00
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
0299b45000
Make BYTE a real type
2015-08-21 12:44:36 +01:00
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
163c435f18
[uniscribe] Fix negative offsets
...
Ouch!
2015-08-20 15:39:06 +01:00
958c268fa3
[coretext] Add TODO item
2015-08-19 13:22:12 +01:00
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
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
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
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
ddd6bf12f1
Don't declare dependency on freetype in harfbuzz.pc
...
See comments.
2015-08-18 15:55:09 +01:00
2c8b3b2e53
[debug] Print lookup index in debug-apply output
2015-08-18 14:36:43 +01:00
50ad7788ee
[coretext] Remove assert that kicks in on Mac OS 10.6
...
http://crbug.com/419769
2015-08-18 10:22:16 +01:00
2b646fa07f
Remove unused function
2015-08-17 16:03:28 +02:00
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
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
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
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
f1c20e1ba5
[USE] Fix out-of-bounds static array access
2015-07-27 12:16:02 +02:00
260442346a
1.0.0
2015-07-26 23:39:10 +02:00
df6cb84449
Merge branch 'use'
2015-07-26 19:40:55 +02:00
23e56e088a
Fix broken sentence
2015-07-25 17:38:21 +02:00
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
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
f327aacfa1
[ot] Minor
2015-07-23 11:32:59 +01:00
d78463c801
Minor debug output fix
2015-07-23 10:11:35 +01:00
d99f50bde0
Add missing TRACE_RETURN
2015-07-23 10:08:48 +01:00
2dc8e3f470
[ot] Add missing return!
2015-07-23 10:07:21 +01:00
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
2dbd3d29d6
Fix hide-ignorables if font doesn't have space glyph
...
Was broken by 82b521aeb7
2015-07-22 18:29:47 +01:00
4ba796b26e
Refactor _hb_glyph_info_is_default_ignorable()
2015-07-22 17:41:31 +01:00
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
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
a60e2cfa39
[ot] Don't rely on cluster numbers for ensure_native_direction()
2015-07-22 15:49:08 +01:00
701112dad9
[ot] Simplify form_clusters()
2015-07-22 15:42:20 +01:00
7b8b63adc5
[ot] Don't mirror character if font doesn't support mirrored character!
2015-07-22 15:24:26 +01:00
Behdad Esfahbod
Sascha Brawer
jfkthame
Grigori Goronzy