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Third Party Harfbuzz
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57badadb
T
Third Party Harfbuzz
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Third Party Harfbuzz
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体验新版 GitCode,发现更多精彩内容 >>
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57badadb
编写于
6月 06, 2018
作者:
G
Garret Rieger
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差异文件
[subset] add a new closure call to hb-ot-layout that can compute the closure over multiple lookups.
上级
11f1f413
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
33 addition
and
9 deletion
+33
-9
src/hb-ot-layout.cc
src/hb-ot-layout.cc
+26
-0
src/hb-ot-layout.h
src/hb-ot-layout.h
+6
-0
src/hb-ot-shape.cc
src/hb-ot-shape.cc
+1
-9
未找到文件。
src/hb-ot-layout.cc
浏览文件 @
57badadb
...
...
@@ -952,6 +952,32 @@ hb_ot_layout_lookup_substitute_closure (hb_face_t *face,
l
.
closure
(
&
c
,
lookup_index
);
}
/**
* hb_ot_layout_lookups_substitute_closure:
*
* Compute the transitive closure of glyphs needed for all of the
* provided lookups.
*
* Since: 1.8.1
**/
void
hb_ot_layout_lookups_substitute_closure
(
hb_face_t
*
face
,
const
hb_set_t
*
lookups
,
hb_set_t
*
glyphs
)
{
hb_auto_t
<
hb_map_t
>
done_lookups
;
OT
::
hb_closure_context_t
c
(
face
,
glyphs
,
&
done_lookups
);
const
OT
::
GSUB
&
gsub
=
_get_gsub
(
face
);
unsigned
int
glyphs_length
;
do
{
glyphs_length
=
glyphs
->
get_population
();
for
(
hb_codepoint_t
lookup_index
=
HB_SET_VALUE_INVALID
;
hb_set_next
(
lookups
,
&
lookup_index
);)
gsub
.
get_lookup
(
lookup_index
).
closure
(
&
c
,
lookup_index
);
}
while
(
glyphs_length
!=
glyphs
->
get_population
());
}
/*
* OT::GPOS
*/
...
...
src/hb-ot-layout.h
浏览文件 @
57badadb
...
...
@@ -277,6 +277,12 @@ hb_ot_layout_lookup_substitute_closure (hb_face_t *face,
hb_set_t
*
glyphs
/*TODO , hb_bool_t inclusive */
);
HB_EXTERN
void
hb_ot_layout_lookups_substitute_closure
(
hb_face_t
*
face
,
const
hb_set_t
*
lookups
,
hb_set_t
*
glyphs
);
#ifdef HB_NOT_IMPLEMENTED
/* Note: You better have GDEF when using this API, or marks won't do much. */
HB_EXTERN
hb_bool_t
...
...
src/hb-ot-shape.cc
浏览文件 @
57badadb
...
...
@@ -957,15 +957,7 @@ hb_ot_shape_glyphs_closure (hb_font_t *font,
hb_set_t
*
lookups
=
hb_set_create
();
hb_ot_shape_plan_collect_lookups
(
shape_plan
,
HB_OT_TAG_GSUB
,
lookups
);
/* And find transitive closure. */
hb_set_t
*
copy
=
hb_set_create
();
do
{
copy
->
set
(
glyphs
);
for
(
hb_codepoint_t
lookup_index
=
HB_SET_VALUE_INVALID
;
hb_set_next
(
lookups
,
&
lookup_index
);)
hb_ot_layout_lookup_substitute_closure
(
font
->
face
,
lookup_index
,
glyphs
);
}
while
(
!
copy
->
is_equal
(
glyphs
));
hb_set_destroy
(
copy
);
hb_ot_layout_lookups_substitute_closure
(
font
->
face
,
lookups
,
glyphs
);
hb_set_destroy
(
lookups
);
...
...
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