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
82ecaff736
Add hb_buffer_clear()
...
Which is like _reset(), but does NOT clear unicode-funcs.
2012-11-13 14:10:00 -08:00
da70111ab2
Don't clear buffer pre-context if no new context is being provided
...
Patch from Jonathan Kew.
Part of fixing:
Mozilla Bug 801410 - avoid inserting dotted-circle for run-initial
Unicode combining characters in "simple" scripts such as Latin
https://bugzilla.mozilla.org/show_bug.cgi?id=801410
2012-10-31 13:45:30 -07:00
0bc7a38463
[OT] Fix ReverseChainingSubst
...
We should make it clear that we don't want output buffer in this case,
otherwise buffer->backtrack_len() would be wrong.
2012-10-29 22:02:45 -07:00
38b015e57f
Fix hb_buffer_set_length(buffer, 0)
...
Was causing invalid realloc()s.
2012-10-28 20:11:47 -07:00
05207a79e0
[buffer] Save pre/post textual context
...
To be used for a variety of purposes. We save up to five characters
in each direction. No public API changes, everything is taken care
of already. All clients need to do is to call hb_buffer_add_utf* with
the full text + segment info (or at least some context) instead of
just passing in the segment.
Various operations (hb_buffer_reset, hb_buffer_set_length,
hb_buffer_add*) automatically reset the relevant contexts.
2012-09-25 21:32:21 -04:00
1f66c3c1a0
Add hb_utf_strlen()
...
Speeds up UTF-8 parsing by calling strlen().
2012-09-25 11:42:16 -04:00
7f19ae7b9f
[buffer] Templatize UTF handling
...
Also move UTF routines into a separate file, to be reused from shapers
that need it.
2012-09-25 11:23:55 -04:00
0e0a4da9b7
[buffer] Towards template'izing different UTF adders
2012-09-25 11:09:04 -04:00
7d37280600
Minor
2012-09-25 11:04:41 -04:00
96fdc04e5c
Add hb_buffer_[sg]et_content_type
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And hb_buffer_content_type_t and enum values.
2012-09-06 22:30:53 -04:00
b85800f9de
[Indic] Implement dotted-circle insertion for broken clusters
...
No panic, we reeally insert dotted circle when it's absolutely broken.
Fixes most of the dotted-circle cases against Uniscribe. (for Devanagari
fixes 80% of them, for Khmer 70%; the rest look like Uniscribe being
really bogus...)
I had to make a decision. Apparently Uniscribe adds one dotted circle
to each broken character. I tried that, but that goes wrong easily with
split matras. So I made it add only one dotted circle to an entire
broken syllable tail. As in: "if there was a dotted circle here, this
would have formed a correct cluster." That works better for split
stuff, and I like it more.
2012-08-31 19:18:20 -04:00
1be368e96f
Minor
2012-08-31 16:29:17 -04:00
965c280de0
Add HB_BUFFER_ASSERT_VAR
...
To be used in places we access buffer vars...
2012-08-29 14:02:37 -04:00
d5045a5f40
[ICU] Use new normalizer2 compose/decompose API
...
It's considerably faster than the fallback implementation we had
previously!
2012-08-11 21:27:15 -04:00
208f70f055
Inline Unicode callbacks internally
2012-08-01 17:13:10 -04:00
69cc492dc1
[buffer] Minor
2012-07-31 14:51:36 -04:00
ea278d3895
Partially switch ot shaper to shape_plan
2012-07-27 02:12:28 -04:00
47ef931f13
[buffer] Make sure out_info = info during GPOS
2012-07-19 20:52:44 -04:00
39b17837b4
Add hb_buffer_normalize_glyphs() and hb-shape --normalize-glyphs
...
This reorders glyphs within the cluster to a nominal order. This should
have no visible effect on the output, but helps with testing, for
getting the same hb-shape output for visually-equal glyphs for each
cluster.
2012-07-17 17:09:29 -04:00
e085fcf7ca
Remove unused buffer->replace_glyphs_be16
2012-06-08 21:45:00 -04:00
fe3dabc08d
Minor
2012-06-08 20:56:05 -04:00
e88e14421a
Use merge_clusters instead of open-coding
2012-06-08 20:55:21 -04:00
e51d2b6ed1
Extend into main buffer if extension hit end of out-buffer merging clusters
2012-06-08 20:36:33 -04:00
5ced012d9f
Extend end when merging clusters in out-buffer
2012-06-08 20:31:32 -04:00
72c0a18783
Extend clusters backward in out-buffer
2012-06-08 20:30:03 -04:00
cd5891493d
Extend clusters backwards, into the out-buffer too
2012-06-08 20:28:59 -04:00
cafa6f3727
When merging clusters, extend the end
2012-06-08 20:17:10 -04:00
2a3d911fe0
Fix alignment-requirement missmatch
...
Detected by clang and lots of cmdline options.
2012-06-07 17:31:46 -04:00
0594a24484
Cleanup TRUE/FALSE vs true/false
2012-06-05 20:35:40 -04:00
e1ac38f8dd
Fix inert buffer set_length() with zero
...
Oops!
2012-06-05 20:31:49 -04:00
be4560a3b5
Undo default unicode-funcs to avoid static initializer again
2012-06-05 18:43:57 -04:00
f06ab8a426
Better hide nil objects and make them const
2012-06-05 14:49:14 -04:00
8e3715f8a1
Minor
2012-04-23 22:18:54 -04:00
3b26f96ebe
Add Thai shaper that does SARA AM decomposition / reordering
...
That's not in the OpenType spec, but it's what MS and Adobe do.
2012-04-10 10:52:07 -04:00
d4cc44716c
Move code around, in prep for Thai/Lao shaper
2012-04-07 21:52:28 -04:00
c521e793bd
Fix OOB in replace_glyph()
...
Patch from Kenichi Ishibashi.
2012-01-18 21:51:05 -05:00
9ebe8c0286
Add buffer->replace_glyphs()
2011-08-26 09:29:42 +02:00
e6c09cdf43
Remove the pre_allocate argument from hb_buffer_create()
...
For two reasons:
1. User can always call hb_buffer_pre_allocate() themselves, and
2. Now we do a pre_alloc in add_utfX anyway, so the total number of
reallocs is limited to a small number (~3) anyway. This just makes the
API cleaner.
2011-08-19 19:20:26 +02:00
4e9ff1dd6e
Pre-allocate buffers when adding string
...
We do a conservative estimate of the number of characters, but still,
this limits the number of buffer reallocs to a small constant.
2011-08-15 16:21:22 +02:00
33ccc77902
[API] Make set_user_data() functions take a replace parameter
...
We need this to set data on objects safely without worrying that some
other thread unsets it by setting it at the same time.
2011-08-09 00:43:24 +02:00
944b2ba1ce
[buffer] Make API take signed int length
...
Since we already switched to accepting -1 as 'zero-terminated'.
2011-08-09 00:23:58 +02:00
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
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
c605bbbb6d
Remove C++ guards from source files
...
Where causing issues for people with MSVC.
2011-08-04 20:00:53 -04:00
e62df43649
Add internal hb_buffer_t::get_scratch_buffer()
2011-08-03 17:38:54 -04:00
b65c06025d
Formalize buffer var allocations
2011-07-28 16:49:29 -04:00
a9ad3d3460
Move more code around
...
Buffer var allocation coming into shape
2011-07-28 15:42:18 -04:00
3a81b1db89
Minor, fix leak from my previous refactorings
2011-07-25 16:30:32 -04:00
f4a579bc42
Add internal API for buffer var allocation
2011-07-25 16:26:05 -04:00
468e9cb25c
Move buffer methods into the object
2011-07-22 14:49:14 -04:00
9111b21ef9
Add _hb_buffer_output_glyph() and _hb_buffer_skip_glyph()
2011-07-21 00:59:15 -04:00
dd89d958c1
Fix cluster calculation for non-LTR text
2011-07-21 00:28:57 -04:00
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
80a6833b03
[API] Add hb_*_get_empty() for all objects
2011-05-11 18:21:58 -04:00
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
e87867cb88
[buffer] Fail in _create() if we cannot pre-allocate the requested size
2011-05-02 19:35:05 -04:00
243673d601
[test/buffer] Add more extensive UTF-8 test data from glib
2011-04-28 19:37:51 -04:00
080a0eb7d8
Add _hb_unsigned_int_mul_overflows
2011-04-28 16:01:01 -04:00
3264042873
[test/buffer] Test pre_allocate() and allocation_successful()
2011-04-28 14:24:16 -04:00
e0db4b868f
[buffer] More error handling
...
Should be all set now.
2011-04-28 12:56:49 -04:00
5fa849b77d
[API] Add _set/get_user_data() for all objects
2011-04-27 21:46:01 -04:00
47e71d9661
[object] Remove unnecessary use of macros
2011-04-27 16:41:08 -04:00
65e0063eae
Make buffer size growth start from 32 instead of 8
2011-04-27 09:38:23 -04:00
d4bee9f813
[API] Add hb_unicode_funcs_get_default()
2011-04-27 09:38:19 -04:00
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
2409d5f8d7
Update Copyright headers
2011-04-21 17:14:28 -04:00
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
f85faee9b3
[API] Rename hb_buffer_add_glyph() to hb_buffer_add()
2011-04-19 00:38:01 -04:00
aab0de50e2
[API] Add hb_buffer_allocation_successful()
...
Returns the error status of the buffer.
2011-04-19 00:32:19 -04:00
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
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
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
8f0d7e0c3f
Remove hb_buffer_clear_positions(), add hb_ot_layout_position_start()
2011-04-15 19:08:43 -04:00
2fc56edff6
[API] Remove hb_buffer_clear()
...
One should use hb_buffer_reset() really.
2011-04-15 19:08:38 -04:00
c910bec863
Add hb_buffer_reset() and hb_buffer_set_length()
2011-04-13 15:49:06 -04:00
69ea23cb5d
Minor
2011-04-13 15:02:40 -04:00
b5dd44e246
Fix possible overflow
2011-02-28 10:13:52 -08:00
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
1c3183027f
Remove unused realloc
...
We always allocate and grow str and pos together.
2011-01-06 14:44:14 -05:00
98370e89d1
WIP removing external synthesized GDEF support and implementing it internally
2010-11-02 19:12:58 -04:00
870e2d6eac
Remove unused function
2010-11-02 19:12:58 -04:00
dbf56b1d94
More lig-id cleanup
2010-11-02 19:12:58 -04:00
f6a23a0b91
More removal of lig-id code from buffer
2010-11-02 19:12:58 -04:00
dd2ffd282c
Minor renaming
2010-11-02 19:12:58 -04:00
fe263272a2
Move setting lig_id/component out of buffer and to the gsub code
2010-11-02 19:12:58 -04:00
37ab877149
Remove comment
2010-11-02 19:12:58 -04:00
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
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
961f9baa7b
Oops, actually set global mask
2010-10-13 17:17:00 -04:00
3506b2e78d
Return early if mask is 0
2010-10-13 15:38:52 -04:00
5c1c8c9c50
Make sure feature values don't leak out of their mask
2010-10-13 15:36:38 -04:00
57ac0ecb78
Merge clearing masks and setting global masks
2010-10-12 17:07:02 -04:00
34db6f031d
Add XXX note
2010-10-07 01:21:19 -04:00
4e4ef24e46
Towards separating bit allocation from shaping
2010-07-23 17:22:11 -04:00
acdba3f90b
Prefer C linkage
2010-07-23 15:39:27 -04:00
81c5e8724b
Allow disabling default features
...
Patch from Jonathan Kew
2010-05-28 18:31:16 -04:00
2163afbf35
Add note about UTF-8 decoder
2010-05-27 14:04:15 -04:00
1ce7b87c4d
Cleanup bitmask allocation
2010-05-21 17:31:45 +01:00
009aad5678
Invert the mask logic
...
Before, the mask in the buffer was inverted. That is, a 0 bit meant
feature should be applied and 1 meant not applied, whereas in the
lookups, the logic was positive.
Now both are in sync. When calling hb_buffer_add_glyph() manually,
the mask should be 1 instead of 0.
2010-05-20 14:00:57 +01:00
3567b87cce
Add an inline version of hb_buffer_ensure()
2010-05-14 23:28:44 -04:00
a6a79df5fe
Handle malloc failture in the buffer
2010-05-14 23:20:16 -04:00
910a33fe84
Update buffer docs
2010-05-14 22:13:38 -04:00
36b73c80df
Shortening buffer accessors: rename buffer->in_pos to buffer->i
2010-05-14 22:10:39 -04:00
29427c5c51
Shortening buffer accessors: rename buffer->out_length to buffer->out_len
2010-05-14 22:08:22 -04:00
6960350be9
Shortening buffer accessors: rename buffer->in_length to buffer->len
2010-05-14 22:07:46 -04:00
1b621823f3
Shortening buffer accessors: rename buffer->positions to buffer->pos
2010-05-14 22:05:53 -04:00
9d5e26df08
Shortening buffer accessors: rename buffer->out_string to buffer->out_info
2010-05-14 22:03:11 -04:00
7e7007a1c9
Shortening buffer accessors: rename buffer->in_string to buffer->info
2010-05-14 22:02:37 -04:00
8e6b6bb293
Merge buffer->out_pos and buffer->out_length
2010-05-14 21:58:22 -04:00
1d5e780136
Add a few other buffer methods
2010-05-12 23:43:00 -04:00
8951fc2c82
Add buffer->allocate_lig_id()
2010-05-12 23:13:39 -04:00
22da7fd94d
Rename a few files to be C++ sources
...
In anticipation for buffer revamp coming.
2010-05-12 18:23:21 -04:00
Behdad Esfahbod
Ryan Lortie