kwin/udev.h
Xaver Hugl b50f747876 Multi-GPU output support on Wayland
This commit sets up udev and the DrmBackend to list and use all GPUs.

BUG: 425586
BUG: 417323
2020-10-05 21:05:55 +00:00

92 lines
1.8 KiB
C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2014 Martin Gräßlin <mgraesslin@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef KWIN_UDEV_H
#define KWIN_UDEV_H
#include <memory>
#include <kwin_export.h>
#include <vector>
#include <QVector>
struct udev;
struct udev_device;
struct udev_monitor;
namespace KWin
{
class Udev;
class KWIN_EXPORT UdevDevice
{
public:
UdevDevice(udev_device *device);
~UdevDevice();
udev_device *getParentWithSubsystemDevType(const char *subsystem, const char *devtype = nullptr) const;
const char *devNode();
int sysNum() const;
const char *property(const char *key);
bool hasProperty(const char *key, const char *value);
operator udev_device*() const {
return m_device;
}
operator udev_device*() {
return m_device;
}
typedef std::unique_ptr<UdevDevice> Ptr;
private:
udev_device *m_device;
};
class KWIN_EXPORT UdevMonitor
{
public:
explicit UdevMonitor(Udev *udev);
~UdevMonitor();
int fd() const;
bool isValid() const {
return m_monitor != nullptr;
}
void filterSubsystemDevType(const char *subSystem, const char *devType = nullptr);
void enable();
UdevDevice::Ptr getDevice();
private:
udev_monitor *m_monitor;
};
class KWIN_EXPORT Udev
{
public:
Udev();
~Udev();
bool isValid() const {
return m_udev != nullptr;
}
std::vector<UdevDevice::Ptr> listGPUs();
std::vector<UdevDevice::Ptr> listFramebuffers();
UdevDevice::Ptr deviceFromSyspath(const char *syspath);
UdevMonitor *monitor();
operator udev*() const {
return m_udev;
}
operator udev*() {
return m_udev;
}
private:
struct udev *m_udev;
};
}
#endif