kwin/xwaylandclient.cpp

/*
    KWin - the KDE window manager
    This file is part of the KDE project.

    SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>

    SPDX-License-Identifier: GPL-2.0-or-later
*/

#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