kwin/xwaylandclient.cpp

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "xwaylandclient.h"
namespace KWin
{
bool XwaylandClient::wantsSyncCounter() const
{
// When the frame window is resized, the attached buffer will be destroyed by
// Xwayland, causing unexpected invalid previous and current window pixmaps.
// With the addition of multiple window buffers in Xwayland 1.21, X11 clients
// are no longer able to destroy the buffer after it's been committed and not
// released by the compositor yet.
static const quint32 xwaylandVersion = xcb_get_setup(connection())->release_number;
return xwaylandVersion >= 12100000;
}
} // namespace KWin