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3399 Commits

Author SHA1 Message Date
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