kwin/plugins/platforms/virtual/virtual_backend.h
Roman Gilg fe63e21f80 Introduce generic Output class
Summary:
In order to separate high-level properties of individual outputs from
hardware-specific ones and access these, introduce a new generic class Output.

Also make the DrmOutput class directly a child class of this generic class.

The long-term goal is to get rid of the Screens global object on Wayland and
instead directly work with Output objects on compositing level.

This should enable us long-term to do direct scanout to hardware planes, what
I predict needs this generic output representation at one point.

Test Plan: Manually.

Reviewers: #kwin

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D11781
2018-08-31 11:53:12 +02:00

108 lines
2.9 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2015 Martin Gräßlin <mgraesslin@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/>.
*********************************************************************/
#ifndef KWIN_VIRTUAL_BACKEND_H
#define KWIN_VIRTUAL_BACKEND_H
#include "platform.h"
#include <kwin_export.h>
#include <QObject>
#include <QRect>
class QTemporaryDir;
struct gbm_device;
namespace KWin
{
class VirtualOutput;
class KWIN_EXPORT VirtualBackend : public Platform
{
Q_OBJECT
Q_INTERFACES(KWin::Platform)
Q_PLUGIN_METADATA(IID "org.kde.kwin.Platform" FILE "virtual.json")
public:
VirtualBackend(QObject *parent = nullptr);
virtual ~VirtualBackend();
void init() override;
int outputCount() const {
return m_outputs.size();
}
const QVector<VirtualOutput*> virtualOutputs() const {
return m_outputs;
}
qreal outputScale() const {
return m_outputScale;
}
bool saveFrames() const {
return !m_screenshotDir.isNull();
}
QString screenshotDirPath() const;
Screens *createScreens(QObject *parent = nullptr) override;
QPainterBackend* createQPainterBackend() override;
OpenGLBackend *createOpenGLBackend() override;
Q_INVOKABLE void setVirtualOutputs(int count, QVector<QRect> geometries = QVector<QRect>());
Q_INVOKABLE void setOutputScale(qreal scale) {
m_outputScale = scale;
}
int drmFd() const {
return m_drmFd;
}
void setDrmFd(int fd) {
m_drmFd = fd;
}
gbm_device *gbmDevice() const {
return m_gbmDevice;
}
void setGbmDevice(gbm_device *device) {
m_gbmDevice = device;
}
virtual int gammaRampSize(int screen) const override;
virtual bool setGammaRamp(int screen, ColorCorrect::GammaRamp &gamma) override;
QVector<CompositingType> supportedCompositors() const override {
return QVector<CompositingType>{OpenGLCompositing, QPainterCompositing};
}
Q_SIGNALS:
void virtualOutputsSet(bool countChanged);
private:
QVector<VirtualOutput*> m_outputs;
qreal m_outputScale = 1;
QScopedPointer<QTemporaryDir> m_screenshotDir;
int m_drmFd = -1;
gbm_device *m_gbmDevice = nullptr;
};
}
#endif