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Third Party Harfbuzz
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44bf4320
T
Third Party Harfbuzz
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44bf4320
编写于
3月 31, 2018
作者:
E
Ebrahim Byagowi
提交者:
GitHub
3月 31, 2018
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电子邮件补丁
差异文件
[aat] Implement feat table parsing (#947)
上级
08b8eb67
变更
3
隐藏空白更改
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Showing
3 changed file
with
125 addition
and
1 deletion
+125
-1
src/Makefile.sources
src/Makefile.sources
+2
-1
src/hb-aat-feat-table.hh
src/hb-aat-feat-table.hh
+122
-0
src/hb-aat-layout.cc
src/hb-aat-layout.cc
+1
-0
未找到文件。
src/Makefile.sources
浏览文件 @
44bf4320
...
...
@@ -86,10 +86,11 @@ HB_OT_sources = \
hb-aat-layout-kerx-table.hh
\
hb-aat-layout-morx-table.hh
\
hb-aat-layout-trak-table.hh
\
hb-aat-layout-private.hh
\
hb-aat-feat-table.hh
\
hb-aat-fmtx-table.hh
\
hb-aat-gcid-table.hh
\
hb-aat-ltag-table.hh
\
hb-aat-layout-private.hh
\
hb-ot-font.cc
\
hb-ot-layout.cc
\
hb-ot-layout-base-table.hh
\
...
...
src/hb-aat-feat-table.hh
0 → 100644
浏览文件 @
44bf4320
/*
* Copyright © 2018 Ebrahim Byagowi
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*/
#ifndef HB_AAT_FEAT_TABLE_HH
#define HB_AAT_FEAT_TABLE_HH
#include "hb-aat-layout-common-private.hh"
#define HB_AAT_TAG_feat HB_TAG('f','e','a','t')
namespace
AAT
{
struct
FeatureName
{
inline
bool
sanitize
(
hb_sanitize_context_t
*
c
,
const
void
*
base
)
const
{
TRACE_SANITIZE
(
this
);
return_trace
(
c
->
check_struct
(
this
)
&&
(
base
+
settingTable
).
sanitize
(
c
,
nSettings
,
base
));
}
enum
{
Exclusive
=
0x8000
,
/* If set, the feature settings are mutually exclusive. */
NotDefault
=
0x4000
,
/* If clear, then the setting with an index of 0 in
* the setting name array for this feature should
* be taken as the default for the feature
* (if one is required). If set, then bits 0-15 of this
* featureFlags field contain the index of the setting
* which is to be taken as the default. */
IndexMask
=
0x00FF
/* If bits 30 and 31 are set, then these sixteen bits
* indicate the index of the setting in the setting name
* array for this feature which should be taken
* as the default. */
};
struct
SettingName
{
inline
bool
sanitize
(
hb_sanitize_context_t
*
c
,
const
void
*
base
HB_UNUSED
)
const
{
TRACE_SANITIZE
(
this
);
return_trace
(
c
->
check_struct
(
this
)
&&
nameIndex
>
255
&&
nameIndex
<
32768
);
}
protected:
HBUINT16
setting
;
/* The setting. */
NameID
nameIndex
;
/* The name table index for the setting's name.
* The nameIndex must be greater than 255 and less than 32768. */
public:
DEFINE_SIZE_STATIC
(
4
);
};
protected:
HBUINT16
feature
;
/* Feature type. */
HBUINT16
nSettings
;
/* The number of records in the setting name array. */
LOffsetTo
<
UnsizedArrayOf
<
SettingName
>
>
settingTable
;
/* Offset in bytes from the beginning of this table to
* this feature's setting name array. The actual type of
* record this offset refers to will depend on the
* exclusivity value, as described below. */
HBUINT16
featureFlags
;
/* Single-bit flags associated with the feature type. */
HBINT16
nameIndex
;
/* The name table index for the feature's name.
* This index has values greater than 255 and
* less than 32768. */
public:
DEFINE_SIZE_STATIC
(
12
);
};
/*
* feat -- Feature name
* https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6fmtx.html
*/
struct
feat
{
static
const
hb_tag_t
tableTag
=
HB_AAT_TAG_feat
;
inline
bool
sanitize
(
hb_sanitize_context_t
*
c
)
const
{
TRACE_SANITIZE
(
this
);
return_trace
(
c
->
check_struct
(
this
)
&&
names
.
sanitize
(
c
,
featureNameCount
,
this
));
}
protected:
FixedVersion
<>
version
;
/* Version number of the feature name table
* (0x00010000 for the current version). */
HBUINT16
featureNameCount
;
/* The number of entries in the feature name array. */
HBUINT16
reserved1
;
/* Reserved (set to zero). */
HBUINT32
reserved2
;
/* Reserved (set to zero). */
UnsizedArrayOf
<
FeatureName
>
names
;
/* The feature name array. */
public:
DEFINE_SIZE_STATIC
(
24
);
};
}
/* namespace AAT */
#endif
/* HB_AAT_FEAT_TABLE_HH */
src/hb-aat-layout.cc
浏览文件 @
44bf4320
...
...
@@ -35,6 +35,7 @@
#include "hb-aat-layout-kerx-table.hh"
#include "hb-aat-layout-morx-table.hh"
#include "hb-aat-layout-trak-table.hh"
#include "hb-aat-feat-table.hh" // Just so we compile it; unused otherwise.
#include "hb-aat-fmtx-table.hh" // Just so we compile it; unused otherwise.
#include "hb-aat-gcid-table.hh" // Just so we compile it; unused otherwise.
#include "hb-aat-ltag-table.hh" // Just so we compile it; unused otherwise.
...
...
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