AuroraMiddleware/harfbuzz
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Author SHA1 Message Date
Behdad Esfahbod
f9edd5d56b Implement hb_shape_plan_get_shaper() 
Untested.
 2012-11-16 13:23:37 -08:00
Behdad Esfahbod
43b6531500 [Indic] Another try to unbreak Sinhala split matras 
Just read the comments...
 2012-11-16 13:14:26 -08:00
Behdad Esfahbod
977f1740ac Unbreak tests 2012-11-16 13:10:07 -08:00
Behdad Esfahbod
eba312c8d1 Plumbing to get shape plan and font into complex decompose function 
So we can handle Sinhala split matras smartly...  Coming soon.
 2012-11-16 12:58:38 -08:00
Behdad Esfahbod
3f82f8ff07 Rename hb_buffer_guess_properties() to hb_buffer_guess_segment_properties() 2012-11-15 18:48:10 -08:00
Behdad Esfahbod
f30641038b Bunch of independent changes (ouch) 
API additions:

	hb_segment_properties_t
	HB_SEGMENT_PROPERTIES_DEFAULT
	hb_segment_properties_equal()
	hb_segment_properties_hash()

	hb_buffer_set_segment_properties()
	hb_buffer_get_segment_properties()

	hb_ot_layout_glyph_class_t

	hb_shape_plan_t
	hb_shape_plan_create()
	hb_shape_plan_create_cached()
	hb_shape_plan_get_empty()
	hb_shape_plan_reference()
	hb_shape_plan_destroy()
	hb_shape_plan_set_user_data()
	hb_shape_plan_get_user_data()
	hb_shape_plan_execute()

	hb_ot_shape_plan_collect_lookups()

API changes:

	Rename hb_ot_layout_feature_get_lookup_indexes() to
	hb_ot_layout_feature_get_lookups().

New header file:

	hb-shape-plan.h

And a bunch of prototyped but not implemented stuff.  Coming soon.
(Tests fail because of the prototypes right now.)
 2012-11-15 18:48:10 -08:00
Behdad Esfahbod
75da37dcb1 Minor 2012-11-15 18:39:23 -08:00
Behdad Esfahbod
e05a999495 Add hb_face_[sg]et_glyph_count() 2012-11-15 16:23:21 -08:00
Behdad Esfahbod
aec89de564 Add / modify set API a bit 2012-11-15 16:15:42 -08:00
Behdad Esfahbod
c54599ad26 Minor 2012-11-15 16:14:39 -08:00
Behdad Esfahbod
d1aa143ca4 [Thai] Remove U+0E2C from "AC" consonants 
WinXP doesn't include it.
 2012-11-15 15:38:08 -08:00
Behdad Esfahbod
362a990b22 Rename hb_ot_layout_would_substitute_lookup() and hb_ot_layout_substitute_closure_lookup() 
To match upcoming API.
 2012-11-15 14:57:31 -08:00
Behdad Esfahbod
a4bef84e37 [util] Make hb-shape err if output-format is not understood 
And list supported formats.
 2012-11-15 13:29:51 -08:00
Behdad Esfahbod
3cec819d39 Make the OT shaper default, even if CoreText or Uniscribe is enabled 2012-11-15 13:15:39 -08:00
Behdad Esfahbod
072ae7a982 Add hb_buffer_serialize_list_formats() 2012-11-15 13:14:12 -08:00
Behdad Esfahbod
f9edf16725 Add buffer serialization / deserialization API 
Two output formats for now: TEXT, and JSON.  For example:

  hb-shape --output-format=json

Deserialization API is added, but not implemented yet.
 2012-11-15 13:10:07 -08:00
Behdad Esfahbod
fd0de881f4 Avoid C++ undefined behavior 
https://bugzilla.mozilla.org/show_bug.cgi?id=810823
 2012-11-15 10:48:50 -08:00
Behdad Esfahbod
f41dc2d35b Fix undefined behavior in Indic dottedcircle 
Chromium Issue 158998:	Conditional jump in harfbuzz-ng
http://code.google.com/p/chromium/issues/detail?id=158998
 2012-11-15 10:36:43 -08:00
Behdad Esfahbod
1eb3e94fe9 [Thai] Implement PUA-based fallback shaping 
As explained here:

  http://linux.thai.net/~thep/th-otf/shaping.html

Our output now matches Uniscribe for old fonts (eg. XP Tahoma) with no
Thai GSUB table.
 2012-11-14 17:53:09 -08:00
Behdad Esfahbod
851784f837 Improve shaper selection 2012-11-14 17:53:09 -08:00
Behdad Esfahbod
f3584d3a3a Add test cases for Thai PUA shaping 2012-11-14 17:53:06 -08:00
Behdad Esfahbod
43f04a7456 Move Thai shaper into a separate file 2012-11-14 15:51:54 -08:00
Behdad Esfahbod
ba82325b7a Add note re 'Phags-pa letter U+A872, which is Joining_Type=L 2012-11-14 15:36:53 -08:00
Behdad Esfahbod
d469fadce8 [Indic] Exchange abort() for assert() 2012-11-14 15:07:36 -08:00
Behdad Esfahbod
0f80a89de9 Don't route Kharoshthi through the Indic shaper 
It's a simple, right-to-left, script.
 2012-11-14 15:05:19 -08:00
Behdad Esfahbod
e67072bb17 [Indic] Handle overstruck matra position 2012-11-14 15:00:53 -08:00
Behdad Esfahbod
7e99e4f074 Reposition Lao marks 
Lao marks are center-aligned, unlike Thai ones.
 2012-11-14 14:09:46 -08:00
Behdad Esfahbod
865745b5b8 Don't do fallback positioning for Indic and Thai shapers 2012-11-14 13:48:26 -08:00
Behdad Esfahbod
981748cb2e [Indic] If Khmer fonts have a 'liga' feature, use generic shaper 
Seems to produce more coherent results than trying the Indic shaper on
them.  I'm looking at you, Kh-* fonts...
 2012-11-14 13:38:16 -08:00
Behdad Esfahbod
6b19fa4862 Adjust diff rule for the new hb-shape output format 2012-11-14 11:38:50 -08:00
Behdad Esfahbod
dde5506fd9 [Indic] Don't move virama with left matra 
This is important for the Sinhala U+0DDA split matra since it decomposes
to U+0DD9,U+0DCA where U+0DD9 is a left matra and U+0DCA is the virama.
We don't want to move the virama with the left matra.
TEST: U+0D9A,U+0DDA

Note that we were already doing this in the Uniscribe bug compatibility
mode.  We now do it all the time.
 2012-11-14 11:37:04 -08:00
Behdad Esfahbod
82c4d9880a Add Sinhala test case for split matra U+0DDA 2012-11-14 10:56:02 -08:00
Behdad Esfahbod
d04b128531 Fix test 2012-11-14 10:53:10 -08:00
Behdad Esfahbod
92f9bfed42 Minor 2012-11-13 16:50:45 -08:00
Behdad Esfahbod
66ac2ff32e API change: Remove "mask" from hb_buffer_add() 
I don't expect anybody using hb_buffer_add(), so this shouldn't break
anyone's code.
 2012-11-13 16:26:32 -08:00
Behdad Esfahbod
407f80d625 [util] Add --bot / --eot / --preserve-default-ignorables 2012-11-13 15:33:27 -08:00
Behdad Esfahbod
78d41d8d69 Minor 2012-11-13 15:15:09 -08:00
Behdad Esfahbod
321f73c16e [util] Add --text-before and --text-after to hb-shape / hb-view 
Use with Arabic, for example, to see the effect on joining.
 2012-11-13 15:12:24 -08:00
Behdad Esfahbod
e13f8d280b Fix UTF-8 backward iteration 
Ouch!
 2012-11-13 15:12:06 -08:00
Behdad Esfahbod
5669a6cf41 [Arabic] Fix post-context handling 
Ouch!
 2012-11-13 15:11:51 -08:00
Behdad Esfahbod
0c7df22228 Add buffer flags 
New API:

	hb_buffer_flags_t

	HB_BUFFER_FLAGS_DEFAULT
	HB_BUFFER_FLAG_BOT
	HB_BUFFER_FLAG_EOT
	HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES

	hb_buffer_set_flags()
	hb_buffer_get_flags()

We use the BOT flag to decide whether to insert dottedcircle if the
first char in the buffer is a combining mark.

The PRESERVE_DEFAULT_IGNORABLES flag prevents removal of characters like
ZWNJ/ZWJ/...
 2012-11-13 14:42:35 -08:00
Behdad Esfahbod
1c7e55511a Minor fix 
Ouch
 2012-11-13 14:42:22 -08:00
Behdad Esfahbod
c8d4f8b0fe Minor 2012-11-13 14:10:19 -08:00
Behdad Esfahbod
82ecaff736 Add hb_buffer_clear() 
Which is like _reset(), but does NOT clear unicode-funcs.
 2012-11-13 14:10:00 -08:00
Behdad Esfahbod
da43a92b04 0.9.6 2012-11-13 13:48:26 -08:00
Behdad Esfahbod
0736915b8e [Indic] Decompose Sinhala split matras the way old HarfBuzz / Pango did 
Had to do some refactoring to make this happen...

Under uniscribe bug compatibility mode, we still plit them
Uniscrie-style, but Jonathan and I convinced ourselves that there is no
harm doing this the Unicode way.  This change makes that happen, and
unbreaks free Sinhala fonts.
 2012-11-13 12:35:35 -08:00
Behdad Esfahbod
c8149ca85e [hb-shape] Adjust postioning output format 
1. If there is any offset (x or y), print out both x and y offsets.

2. Always print out the advance in the major direction of the buffer.
Ie. even for zero-advance glyphs, print a "+0".  This is more intuitive.
 2012-11-13 11:07:20 -08:00
Behdad Esfahbod
6fd5335622 [Indic] Update auto-generated Indic machine to reflect previous commit 2012-11-12 18:42:18 -08:00
Behdad Esfahbod
9cac1338c4 [Indic] Allow Consonant_Medial's after Consonant's 
Mostly affects Myanmar, but also Tai Tham, Javanese, and Cham.  The
latter three are untested (no fonts!).
 2012-11-12 18:41:22 -08:00
Behdad Esfahbod
d187099cba [Indic] Categorize Myanmar "tone marks" as nuktas 2012-11-12 18:38:06 -08:00