kwin/plugins/platforms/drm/remoteaccess_manager.h
Oleg Chernovskiy 4d46edd7ba
GBM remote access support for KWin
Summary:
Implements a KWayland protocol to pass GBM fd from KWin to KRfb and
addictions to relevant projects from both sides.

Note that this patch does not affect default behaviour of mentioned projects. It can be used
only with KWIN_REMOTE=1 in env from KWin side and with preferredFrameBufferPlugin=gbm in krfbrc from
KRfb side. In all other aspects app behaviour remains unchanged.

Test Plan: Launched KWin in Wayland mode, launched KRfb in it, launched KRDC on a laptop, connected in read-only mode, observed a correctly retrieved desktop with Krfb window

Reviewers: graesslin, davidedmundson, romangg, #kwin

Reviewed By: davidedmundson, romangg, #kwin

Subscribers: kossebau, jgrulich, romangg, ngraham, alexeymin, aacid, kwin, #kwin, davidedmundson, plasma-devel

Tags: #plasma_on_wayland, #kwin

Maniphest Tasks: T5653, T7785

Differential Revision: https://phabricator.kde.org/D1230
2018-03-25 20:18:47 +03:00

61 lines
1.7 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2016 Oleg Chernovskiy <kanedias@xaker.ru>
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/>.
*********************************************************************/
#ifndef REMOTEACCESSMANAGER_H
#define REMOTEACCESSMANAGER_H
// KWayland
#include <KWayland/Server/display.h>
#include <KWayland/Server/remote_access_interface.h>
// Qt
#include <QObject>
struct gbm_bo;
struct gbm_surface;
namespace KWin
{
class DrmOutput;
class DrmBuffer;
using KWayland::Server::RemoteAccessManagerInterface;
using KWayland::Server::BufferHandle;
class RemoteAccessManager : public QObject
{
Q_OBJECT
public:
explicit RemoteAccessManager(QObject *parent = nullptr);
virtual ~RemoteAccessManager();
void passBuffer(DrmOutput *output, DrmBuffer *buffer);
signals:
void bufferNoLongerNeeded(qint32 gbm_handle);
private:
void releaseBuffer(const BufferHandle *buf);
RemoteAccessManagerInterface *m_interface = nullptr;
};
} // KWin namespace
#endif // REMOTEACCESSMANAGER_H