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Third Party Harfbuzz
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e3e0ac98
T
Third Party Harfbuzz
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体验新版 GitCode,发现更多精彩内容 >>
提交
e3e0ac98
编写于
2月 20, 2018
作者:
G
Garret Rieger
浏览文件
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电子邮件补丁
差异文件
[subset] Move glyf subsetting code into hb-ot-glyf-table.hh
上级
d1f16fce
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
49 addition
and
50 deletion
+49
-50
src/hb-ot-glyf-table.hh
src/hb-ot-glyf-table.hh
+48
-1
src/hb-subset.cc
src/hb-subset.cc
+1
-49
未找到文件。
src/hb-ot-glyf-table.hh
浏览文件 @
e3e0ac98
...
...
@@ -29,7 +29,9 @@
#include "hb-open-type-private.hh"
#include "hb-ot-head-table.hh"
#include "hb-subset-glyf.hh"
#include "hb-subset-plan.hh"
#include "hb-subset-private.hh"
namespace
OT
{
...
...
@@ -78,6 +80,51 @@ struct glyf
return_trace
(
true
);
}
inline
bool
subset
(
hb_subset_plan_t
*
plan
)
const
{
hb_blob_t
*
glyf_prime
=
nullptr
;
hb_blob_t
*
loca_prime
=
nullptr
;
bool
success
=
true
;
bool
use_short_loca
=
false
;
if
(
hb_subset_glyf_and_loca
(
plan
,
&
use_short_loca
,
&
glyf_prime
,
&
loca_prime
))
{
success
=
success
&&
hb_subset_plan_add_table
(
plan
,
HB_OT_TAG_glyf
,
glyf_prime
);
success
=
success
&&
hb_subset_plan_add_table
(
plan
,
HB_OT_TAG_loca
,
loca_prime
);
success
=
success
&&
_add_head_and_set_loca_version
(
plan
->
source
,
use_short_loca
,
plan
->
dest
);
}
else
{
success
=
false
;
}
hb_blob_destroy
(
loca_prime
);
hb_blob_destroy
(
glyf_prime
);
return
success
;
}
static
bool
_add_head_and_set_loca_version
(
hb_face_t
*
source
,
bool
use_short_loca
,
hb_face_t
*
dest
)
{
hb_blob_t
*
head_blob
=
OT
::
Sanitizer
<
OT
::
head
>
().
sanitize
(
hb_face_reference_table
(
source
,
HB_OT_TAG_head
));
const
OT
::
head
*
head
=
OT
::
Sanitizer
<
OT
::
head
>::
lock_instance
(
head_blob
);
hb_bool_t
has_head
=
(
head
!=
nullptr
);
if
(
has_head
)
{
OT
::
head
*
head_prime
=
(
OT
::
head
*
)
malloc
(
OT
::
head
::
static_size
);
memcpy
(
head_prime
,
head
,
OT
::
head
::
static_size
);
head_prime
->
indexToLocFormat
.
set
(
use_short_loca
?
0
:
1
);
hb_blob_t
*
head_prime_blob
=
hb_blob_create
((
const
char
*
)
head_prime
,
OT
::
head
::
static_size
,
HB_MEMORY_MODE_READONLY
,
head_prime
,
free
);
has_head
=
hb_subset_face_add_table
(
dest
,
HB_OT_TAG_head
,
head_prime_blob
);
hb_blob_destroy
(
head_prime_blob
);
}
hb_blob_destroy
(
head_blob
);
return
has_head
;
}
struct
GlyphHeader
{
HBINT16
numberOfContours
;
/* If the number of contours is
...
...
src/hb-subset.cc
浏览文件 @
e3e0ac98
...
...
@@ -219,63 +219,15 @@ hb_subset_face_add_table (hb_face_t *face, hb_tag_t tag, hb_blob_t *blob)
return
true
;
}
static
bool
_add_head_and_set_loca_version
(
hb_face_t
*
source
,
bool
use_short_loca
,
hb_face_t
*
dest
)
{
hb_blob_t
*
head_blob
=
OT
::
Sanitizer
<
OT
::
head
>
().
sanitize
(
hb_face_reference_table
(
source
,
HB_OT_TAG_head
));
const
OT
::
head
*
head
=
OT
::
Sanitizer
<
OT
::
head
>::
lock_instance
(
head_blob
);
hb_bool_t
has_head
=
(
head
!=
nullptr
);
if
(
has_head
)
{
OT
::
head
*
head_prime
=
(
OT
::
head
*
)
malloc
(
OT
::
head
::
static_size
);
memcpy
(
head_prime
,
head
,
OT
::
head
::
static_size
);
head_prime
->
indexToLocFormat
.
set
(
use_short_loca
?
0
:
1
);
hb_blob_t
*
head_prime_blob
=
hb_blob_create
((
const
char
*
)
head_prime
,
OT
::
head
::
static_size
,
HB_MEMORY_MODE_READONLY
,
head_prime
,
free
);
has_head
=
hb_subset_face_add_table
(
dest
,
HB_OT_TAG_head
,
head_prime_blob
);
hb_blob_destroy
(
head_prime_blob
);
}
hb_blob_destroy
(
head_blob
);
return
has_head
;
}
static
bool
_subset_glyf
(
hb_subset_plan_t
*
plan
)
{
hb_blob_t
*
glyf_prime
=
nullptr
;
hb_blob_t
*
loca_prime
=
nullptr
;
bool
success
=
true
;
bool
use_short_loca
=
false
;
// TODO(grieger): Migrate to subset function on the table like cmap.
if
(
hb_subset_glyf_and_loca
(
plan
,
&
use_short_loca
,
&
glyf_prime
,
&
loca_prime
))
{
success
=
success
&&
hb_subset_plan_add_table
(
plan
,
HB_OT_TAG_glyf
,
glyf_prime
);
success
=
success
&&
hb_subset_plan_add_table
(
plan
,
HB_OT_TAG_loca
,
loca_prime
);
success
=
success
&&
_add_head_and_set_loca_version
(
plan
->
source
,
use_short_loca
,
plan
->
dest
);
}
else
{
success
=
false
;
}
hb_blob_destroy
(
loca_prime
);
hb_blob_destroy
(
glyf_prime
);
return
success
;
}
static
bool
_subset_table
(
hb_subset_plan_t
*
plan
,
hb_tag_t
tag
)
{
// TODO (grieger): Handle updating the head table (loca format + num glyphs)
DEBUG_MSG
(
SUBSET
,
nullptr
,
"begin subset %c%c%c%c"
,
HB_UNTAG
(
tag
));
bool
result
=
true
;
switch
(
tag
)
{
case
HB_OT_TAG_glyf
:
result
=
_subset
_glyf
(
plan
);
result
=
_subset
<
const
OT
::
glyf
>
(
plan
);
break
;
case
HB_OT_TAG_head
:
// SKIP head, it's handled by glyf
...
...
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