AuroraMiddleware/qt5base-lts
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix memory leak when using small caps font

Browse Source 
The small caps version of a font is kept as a QFontPrivate*
which is manually reference counted, but we neglected to
actually delete it when the reference count went to 0.

[ChangeLog][Fonts] Fixed a memory leak when initializing
a small caps font.

Fixes: QTBUG-93068
Pick-to: 6.1 5.15
Change-Id: Icc7fb7a59bf523da84d2e6fa026940a7d1230525
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Robert Löhning <robert.loehning@qt.io>
This commit is contained in:
Eskil Abrahamsen Blomfeldt 2021-05-19 09:48:41 +02:00
parent ea3a4a5003
commit 11a40defff
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/gui/text/qfont.cpp
View File

@ -258,8 +258,10 @@ QFontPrivate::~QFontPrivate()
if (engineData && !engineData->ref.deref())
delete engineData;
engineData = nullptr;
if (scFont && scFont != this)
scFont->ref.deref();
if (scFont && scFont != this) {
if (!scFont->ref.deref())
delete scFont;
}
scFont = nullptr;
}
@ -650,8 +652,10 @@ void QFont::detach()
if (d->engineData && !d->engineData->ref.deref())
delete d->engineData;
d->engineData = nullptr;
if (d->scFont && d->scFont != d.data())
d->scFont->ref.deref();
if (d->scFont && d->scFont != d.data()) {
if (!d->scFont->ref.deref())
delete d->scFont;
}
d->scFont = nullptr;
return;
}