AuroraMiddleware/harfbuzz
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71 Commits

Author SHA1 Message Date
Behdad Esfahbod
144cd49a0e [buffer] Accept -1 for text_length and item_length 
A -1 text_length means: zero-terminated string.
A -1 item_length means: to the end of string.
 2011-08-07 00:51:50 -04:00
Behdad Esfahbod
02aeca985b [API] Changes to main shape API 
hb_shape() now accepts a shaper_options and a shaper_list argument.
Both can be set to NULL to emulate previous API.  And in most situations
they are expected to be set to NULL.

hb_shape() also returns a boolean for now.  If shaper_list is NULL, the
return value can be ignored.

shaper_options is ignored for now, but otherwise it should be a
NULL-terminated list of strings.

shaper_list is a NULL-terminated list of strings.  Currently recognized
strings are "ot" for native OpenType Layout implementation, "uniscribe"
for the Uniscribe backend, and "fallback" for the non-complex backend
(that will be implemented shortly).  The fallback backend never fails.

The env var HB_SHAPER_LIST is also parsed and honored.  It's a
colon-separated list of shaper names.  The fallback shaper is invoked if
none of the env-listed shapers succeed.

New API hb_buffer_guess_properties() added.
 2011-08-04 22:38:09 -04:00
Behdad Esfahbod
c605bbbb6d Remove C++ guards from source files 
Where causing issues for people with MSVC.
 2011-08-04 20:00:53 -04:00
Behdad Esfahbod
e62df43649 Add internal hb_buffer_t::get_scratch_buffer() 2011-08-03 17:38:54 -04:00
Behdad Esfahbod
b65c06025d Formalize buffer var allocations 2011-07-28 16:49:29 -04:00
Behdad Esfahbod
a9ad3d3460 Move more code around 
Buffer var allocation coming into shape
 2011-07-28 15:42:18 -04:00
Behdad Esfahbod
3a81b1db89 Minor, fix leak from my previous refactorings 2011-07-25 16:30:32 -04:00
Behdad Esfahbod
f4a579bc42 Add internal API for buffer var allocation 2011-07-25 16:26:05 -04:00
Behdad Esfahbod
468e9cb25c Move buffer methods into the object 2011-07-22 14:49:14 -04:00
Behdad Esfahbod
9111b21ef9 Add _hb_buffer_output_glyph() and _hb_buffer_skip_glyph() 2011-07-21 00:59:15 -04:00
Behdad Esfahbod
dd89d958c1 Fix cluster calculation for non-LTR text 2011-07-21 00:28:57 -04:00
Behdad Esfahbod
2e18c6dbdf Fix reverse_range() position loop 
Mozilla Bug 669175 - Slow rendering of text sometimes in this case,
using direction: rtl
 2011-07-06 16:05:45 -04:00
Behdad Esfahbod
80a6833b03 [API] Add hb_*_get_empty() for all objects 2011-05-11 18:21:58 -04:00
Behdad Esfahbod
3935af1c0d [buffer] Remove wrong optimization 
While the cluster fields of the glyph string are usually sorted, they
wouldn't be in special cases (for example for non-native direction).
Blindly using bsearch is plain wrong.  If we want to reintroduce this
optimization we have to make sure we know the buffer clusters are
monotonic and in which direction.  Not sure it's worth it though.
 2011-05-05 16:09:45 -04:00
Behdad Esfahbod
e87867cb88 [buffer] Fail in _create() if we cannot pre-allocate the requested size 2011-05-02 19:35:05 -04:00
Behdad Esfahbod
243673d601 [test/buffer] Add more extensive UTF-8 test data from glib 2011-04-28 19:37:51 -04:00
Behdad Esfahbod
080a0eb7d8 Add _hb_unsigned_int_mul_overflows 2011-04-28 16:01:01 -04:00
Behdad Esfahbod
3264042873 [test/buffer] Test pre_allocate() and allocation_successful() 2011-04-28 14:24:16 -04:00
Behdad Esfahbod
e0db4b868f [buffer] More error handling 
Should be all set now.
 2011-04-28 12:56:49 -04:00
Behdad Esfahbod
5fa849b77d [API] Add _set/get_user_data() for all objects 2011-04-27 21:46:01 -04:00
Behdad Esfahbod
47e71d9661 [object] Remove unnecessary use of macros 2011-04-27 16:41:08 -04:00
Behdad Esfahbod
65e0063eae Make buffer size growth start from 32 instead of 8 2011-04-27 09:38:23 -04:00
Behdad Esfahbod
d4bee9f813 [API] Add hb_unicode_funcs_get_default() 2011-04-27 09:38:19 -04:00
Behdad Esfahbod
fca368c468 Add hb_object_header_t which is the common part of all objects 
Makes way for adding arbitrary user_data support.
 2011-04-21 18:24:02 -04:00
Behdad Esfahbod
2409d5f8d7 Update Copyright headers 2011-04-21 17:14:28 -04:00
Behdad Esfahbod
af02933739 [API] Remove hb_*_get_reference_count() 
This was a bizzare piece of API that I inherited from cairo.  It has
been wrong adding them to cairo in the first place.  Remove them before
someone uses them!
 2011-04-20 15:49:31 -04:00
Behdad Esfahbod
f85faee9b3 [API] Rename hb_buffer_add_glyph() to hb_buffer_add() 2011-04-19 00:38:01 -04:00
Behdad Esfahbod
aab0de50e2 [API] Add hb_buffer_allocation_successful() 
Returns the error status of the buffer.
 2011-04-19 00:32:19 -04:00
Ryan Lortie
02a534b23f [API] Rename hb_buffer_ensure() to hb_buffer_pre_allocate() 
The new name is self-documenting.
 2011-04-19 00:05:43 -04:00
Ryan Lortie
70566befc5 [API} hb_buffer_get_glyph_{infos,positions}: Add length out parameter 
Return the length, whenever we return an array.  Makes it easier on the
language bindings.
 2011-04-19 00:03:44 -04:00
Behdad Esfahbod
c0af193c8e Change buffer default properties to invalid 
This includes HB_DIRECTION_INVALID and HB_SCRIPT_INVALID.

The INVALID will cause a "guess whatever from the text" in hb_shape().
While it's not ideal, it works better than the previous defaults at
least (HB_DIRECTION_LTR and HB_SCRIPT_COMMON).
 2011-04-15 19:26:24 -04:00
Behdad Esfahbod
8f0d7e0c3f Remove hb_buffer_clear_positions(), add hb_ot_layout_position_start() 2011-04-15 19:08:43 -04:00
Behdad Esfahbod
2fc56edff6 [API] Remove hb_buffer_clear() 
One should use hb_buffer_reset() really.
 2011-04-15 19:08:38 -04:00
Behdad Esfahbod
c910bec863 Add hb_buffer_reset() and hb_buffer_set_length() 2011-04-13 15:49:06 -04:00
Behdad Esfahbod
69ea23cb5d Minor 2011-04-13 15:02:40 -04:00
Behdad Esfahbod
b5dd44e246 Fix possible overflow 2011-02-28 10:13:52 -08:00
Behdad Esfahbod
cc1a8a938b Fix ChanContext backtrack matching with GPOS 
Reported on mailing list by Keith Stribley and Khaled Hosny.
 2011-01-06 14:58:52 -05:00
Behdad Esfahbod
1c3183027f Remove unused realloc 
We always allocate and grow str and pos together.
 2011-01-06 14:44:14 -05:00
Behdad Esfahbod
98370e89d1 WIP removing external synthesized GDEF support and implementing it internally 2010-11-02 19:12:58 -04:00
Behdad Esfahbod
870e2d6eac Remove unused function 2010-11-02 19:12:58 -04:00
Behdad Esfahbod
dbf56b1d94 More lig-id cleanup 2010-11-02 19:12:58 -04:00
Behdad Esfahbod
f6a23a0b91 More removal of lig-id code from buffer 2010-11-02 19:12:58 -04:00
Behdad Esfahbod
dd2ffd282c Minor renaming 2010-11-02 19:12:58 -04:00
Behdad Esfahbod
fe263272a2 Move setting lig_id/component out of buffer and to the gsub code 2010-11-02 19:12:58 -04:00
Behdad Esfahbod
37ab877149 Remove comment 2010-11-02 19:12:58 -04:00
Behdad Esfahbod
88474c6fda Get rid of the OpenType-specific internal buffer representation 
Add variant integers to buffer item types.  More cleanup coming.
 2010-11-02 19:12:58 -04:00
Behdad Esfahbod
bd7378b2ef Massage mask setting a bit more 
Still finding the exact correct way the masks should be set.
 2010-10-13 18:33:16 -04:00
Behdad Esfahbod
961f9baa7b Oops, actually set global mask 2010-10-13 17:17:00 -04:00
Behdad Esfahbod
3506b2e78d Return early if mask is 0 2010-10-13 15:38:52 -04:00
Behdad Esfahbod
5c1c8c9c50 Make sure feature values don't leak out of their mask 2010-10-13 15:36:38 -04:00