Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
OpenHarmony
Third Party Harfbuzz
提交
b220b5a4
T
Third Party Harfbuzz
项目概览
OpenHarmony
/
Third Party Harfbuzz
接近 2 年 前同步成功
通知
1
Star
18
Fork
0
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
0
列表
看板
标记
里程碑
合并请求
0
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
T
Third Party Harfbuzz
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
0
Issue
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
Pages
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
提交
Issue看板
提交
b220b5a4
编写于
2月 08, 2018
作者:
B
Behdad Esfahbod
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Avoid undefined-behavior in fallback mark positioning
Fixes
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5584
上级
3b68a03a
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
6 addition
and
5 deletion
+6
-5
src/hb-ot-shape-fallback.cc
src/hb-ot-shape-fallback.cc
+6
-5
未找到文件。
src/hb-ot-shape-fallback.cc
浏览文件 @
b220b5a4
...
...
@@ -200,8 +200,7 @@ position_mark (const hb_ot_shape_plan_t *plan,
unsigned
int
combining_class
)
{
hb_glyph_extents_t
mark_extents
;
if
(
!
font
->
get_glyph_extents
(
buffer
->
info
[
i
].
codepoint
,
&
mark_extents
))
if
(
!
font
->
get_glyph_extents
(
buffer
->
info
[
i
].
codepoint
,
&
mark_extents
))
return
;
hb_position_t
y_gap
=
font
->
y_scale
/
16
;
...
...
@@ -322,7 +321,9 @@ position_around_base (const hb_ot_shape_plan_t *plan,
base_extents
.
y_bearing
+=
buffer
->
pos
[
base
].
y_offset
;
unsigned
int
lig_id
=
_hb_glyph_info_get_lig_id
(
&
buffer
->
info
[
base
]);
unsigned
int
num_lig_components
=
_hb_glyph_info_get_lig_num_comps
(
&
buffer
->
info
[
base
]);
/* Use integer for num_lig_components such that it doesn't convert to unsigned
* when we divide or multiply by it. */
int
num_lig_components
=
_hb_glyph_info_get_lig_num_comps
(
&
buffer
->
info
[
base
]);
hb_position_t
x_offset
=
0
,
y_offset
=
0
;
if
(
HB_DIRECTION_IS_FORWARD
(
buffer
->
props
.
direction
))
{
...
...
@@ -331,7 +332,7 @@ position_around_base (const hb_ot_shape_plan_t *plan,
}
hb_glyph_extents_t
component_extents
=
base_extents
;
unsigned
int
last_lig_component
=
(
unsigned
int
)
-
1
;
int
last_lig_component
=
-
1
;
unsigned
int
last_combining_class
=
255
;
hb_glyph_extents_t
cluster_extents
=
base_extents
;
/* Initialization is just to shut gcc up. */
hb_glyph_info_t
*
info
=
buffer
->
info
;
...
...
@@ -340,7 +341,7 @@ position_around_base (const hb_ot_shape_plan_t *plan,
{
if
(
num_lig_components
>
1
)
{
unsigned
int
this_lig_id
=
_hb_glyph_info_get_lig_id
(
&
info
[
i
]);
unsigned
int
this_lig_component
=
_hb_glyph_info_get_lig_comp
(
&
info
[
i
])
-
1
;
int
this_lig_component
=
_hb_glyph_info_get_lig_comp
(
&
info
[
i
])
-
1
;
/* Conditions for attaching to the last component. */
if
(
!
lig_id
||
lig_id
!=
this_lig_id
||
this_lig_component
>=
num_lig_components
)
this_lig_component
=
num_lig_components
-
1
;
...
...
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录