kwin/src/xwaylandclient.cpp
Vlad Zahorodnii ec7198ee33 x11: Prefer kwinApp()->x11Connection() over connection()
With connection(), we will look up the x11 connection property on
kwinApp() object, which is less efficient than just calling a method on
the app object.
2022-02-09 19:10:58 +00:00

57 lines
1.8 KiB
C++

/*
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"
#include <KWaylandServer/surface_interface.h>
using namespace KWaylandServer;
namespace KWin
{
XwaylandClient::XwaylandClient()
{
// The wayland surface is associated with the Xwayland window asynchronously.
connect(this, &Toplevel::surfaceChanged, this, &XwaylandClient::associate);
}
void XwaylandClient::associate()
{
if (surface()->isMapped()) {
initialize();
} else {
// Queued connection because we want to mark the window ready for painting after
// the associated surface item has processed the new surface state.
connect(surface(), &SurfaceInterface::mapped, this, &XwaylandClient::initialize, Qt::QueuedConnection);
}
}
void XwaylandClient::initialize()
{
if (!readyForPainting()) { // avoid "setReadyForPainting()" function calling overhead
if (syncRequest().counter == XCB_NONE) { // cannot detect complete redraw, consider done now
setReadyForPainting();
setupWindowManagementInterface();
}
}
}
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(kwinApp()->x11Connection())->release_number;
return xwaylandVersion >= 12100000;
}
} // namespace KWin