4d46edd7ba
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
87 lines
2.5 KiB
C++
87 lines
2.5 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/>.
|
|
*********************************************************************/
|
|
#include "drm_output.h"
|
|
#include "remoteaccess_manager.h"
|
|
#include "logging.h"
|
|
#include "drm_backend.h"
|
|
#include "../../../wayland_server.h"
|
|
|
|
// system
|
|
#include <KWayland/Server/output_interface.h>
|
|
#include <unistd.h>
|
|
#include <gbm.h>
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
RemoteAccessManager::RemoteAccessManager(QObject *parent)
|
|
: QObject(parent)
|
|
{
|
|
if (waylandServer()) {
|
|
m_interface = waylandServer()->display()->createRemoteAccessManager(this);
|
|
m_interface->create();
|
|
|
|
connect(m_interface, &RemoteAccessManagerInterface::bufferReleased,
|
|
this, &RemoteAccessManager::releaseBuffer);
|
|
}
|
|
}
|
|
|
|
RemoteAccessManager::~RemoteAccessManager()
|
|
{
|
|
if (m_interface) {
|
|
m_interface->destroy();
|
|
}
|
|
}
|
|
|
|
void RemoteAccessManager::releaseBuffer(const BufferHandle *buf)
|
|
{
|
|
int ret = close(buf->fd());
|
|
if (Q_UNLIKELY(ret)) {
|
|
qCWarning(KWIN_DRM) << "Couldn't close released GBM fd:" << strerror(errno);
|
|
}
|
|
delete buf;
|
|
}
|
|
|
|
void RemoteAccessManager::passBuffer(DrmOutput *output, DrmBuffer *buffer)
|
|
{
|
|
DrmSurfaceBuffer* gbmbuf = static_cast<DrmSurfaceBuffer *>(buffer);
|
|
|
|
// no connected RemoteAccess instance
|
|
if (!m_interface || !m_interface->isBound()) {
|
|
return;
|
|
}
|
|
|
|
// first buffer may be null
|
|
if (!gbmbuf || !gbmbuf->hasBo()) {
|
|
return;
|
|
}
|
|
|
|
auto buf = new BufferHandle;
|
|
auto bo = gbmbuf->getBo();
|
|
buf->setFd(gbm_bo_get_fd(bo));
|
|
buf->setSize(gbm_bo_get_width(bo), gbm_bo_get_height(bo));
|
|
buf->setStride(gbm_bo_get_stride(bo));
|
|
buf->setFormat(gbm_bo_get_format(bo));
|
|
|
|
m_interface->sendBufferReady(output->getWaylandInterface().data(), buf);
|
|
}
|
|
|
|
} // KWin namespace
|