#include <mythdrmdevice.h>

Collaboration diagram for MythDRMDevice:

[legend]

Public Member Functions
	~MythDRMDevice ()

bool	Authenticated () const

bool	Atomic () const

int	GetFD () const

QString	GetSerialNumber () const

QScreen *	GetScreen () const

QSize	GetResolution () const

QSize	GetPhysicalSize () const

double	GetRefreshRate () const
	Return the refresh rate we think is in use. More...

MythEDID	GetEDID () const

DRMCrtc	GetCrtc () const

DRMConn	GetConnector () const

const DRMModes &	GetModes () const

bool	CanSwitchModes () const

bool	SwitchMode (int ModeIndex)
	Set the required video mode. More...

Static Public Member Functions
static std::tuple< QString, QStringList >	GetDeviceList ()

static MythDRMPtr	Create (QScreen *qScreen, const QString &Device=QString(), bool NeedPlanes=true)
	Create a MythDRMDevice instance. More...

Protected Member Functions
	MythDRMDevice (QScreen *qScreen, const QString &Device=QString())
	Constructor used when we have no DRM handles from Qt. More...

Private Member Functions
bool	Open ()

void	Authenticate ()
	Attempt to acquire privileged DRM access. More...

void	Load ()

bool	Initialise ()

QString	FindBestDevice ()

Static Private Member Functions
static bool	ConfirmDevice (const QString &Device)

Private Attributes
bool	m_valid { false }

QScreen *	m_screen { nullptr }

QString	m_deviceName

bool	m_openedDevice { true }

int	m_fd { -1 }

bool	m_atomic { false }

bool	m_authenticated { false }

DRMConns	m_connectors

DRMEncs	m_encoders

DRMCrtcs	m_crtcs

DRMPlanes	m_planes

DRMConn	m_connector { nullptr }

DRMCrtc	m_crtc { nullptr }

QSize	m_resolution

QSize	m_physicalSize

double	m_refreshRate { 0.0 }

double	m_adjustedRefreshRate { 0.0 }

QString	m_serialNumber

LogLevel_t	m_verbose { LOG_INFO }

MythEDID	m_edid

Detailed Description

Definition at line 24 of file mythdrmdevice.h.

Constructor & Destructor Documentation

◆ ~MythDRMDevice()

MythDRMDevice::~MythDRMDevice ( )

Definition at line 555 of file mythdrmdevice.cpp.

◆ MythDRMDevice()

MythDRMDevice::MythDRMDevice	(	QScreen *	qScreen,
		const QString &	Device = `QString()`
	)

explicitprotected

Constructor used when we have no DRM handles from Qt.

This will construct an instance with little functionality as it will not be authenticated. Useful for confirming current display settings and little else.

Definition at line 391 of file mythdrmdevice.cpp.

Referenced by Create().

Member Function Documentation

◆ GetDeviceList()

std::tuple< QString, QStringList > MythDRMDevice::GetDeviceList ( )

static

Definition at line 371 of file mythdrmdevice.cpp.

Referenced by FindBestDevice().

◆ Create()

MythDRMPtr MythDRMDevice::Create	(	QScreen *	qScreen,
		const QString &	Device = `QString()`,
		bool	NeedPlanes = `true`
	)

static

Create a MythDRMDevice instance.

Returns: A valid instance or nullptr on error.

Definition at line 316 of file mythdrmdevice.cpp.

Referenced by MythVRR::Create(), MythDisplayDRM::MythDisplayDRM(), and MythDisplayDRM::ScreenChanged().

◆ Authenticated()

bool MythDRMDevice::Authenticated ( ) const

Definition at line 574 of file mythdrmdevice.cpp.

◆ Atomic()

bool MythDRMDevice::Atomic ( ) const

Definition at line 579 of file mythdrmdevice.cpp.

◆ GetFD()

int MythDRMDevice::GetFD ( ) const

Definition at line 584 of file mythdrmdevice.cpp.

◆ GetSerialNumber()

QString MythDRMDevice::GetSerialNumber ( ) const

Definition at line 589 of file mythdrmdevice.cpp.

Referenced by FindBestDevice().

◆ GetScreen()

QScreen * MythDRMDevice::GetScreen ( ) const

Definition at line 594 of file mythdrmdevice.cpp.

◆ GetResolution()

QSize MythDRMDevice::GetResolution ( ) const

Definition at line 599 of file mythdrmdevice.cpp.

◆ GetPhysicalSize()

QSize MythDRMDevice::GetPhysicalSize ( ) const

Definition at line 604 of file mythdrmdevice.cpp.

◆ GetRefreshRate()

double MythDRMDevice::GetRefreshRate ( ) const

Return the refresh rate we think is in use.

Note: There is currently no mechanism for ensuring that a change in video mode has been accepted and due to the Atomic API, we cannot confirm a change immediately after requesting a change. Furthermore, Qt has no expectation that any other process will change the current video mode when it is using eglfs_kms - and hence has no mechanism to detect such changes (to either refresh rate or resolution). Hence we assume that the new video mode has been accepted and pass back what we believe to be the new value here.

Definition at line 624 of file mythdrmdevice.cpp.

◆ GetEDID()

MythEDID MythDRMDevice::GetEDID ( ) const

Definition at line 609 of file mythdrmdevice.cpp.

◆ GetCrtc()

DRMCrtc MythDRMDevice::GetCrtc ( ) const

Definition at line 872 of file mythdrmdevice.cpp.

◆ GetConnector()

DRMConn MythDRMDevice::GetConnector ( ) const

Definition at line 877 of file mythdrmdevice.cpp.

◆ GetModes()

const DRMModes & MythDRMDevice::GetModes ( ) const

Definition at line 637 of file mythdrmdevice.cpp.

◆ CanSwitchModes()

bool MythDRMDevice::CanSwitchModes ( ) const

Definition at line 631 of file mythdrmdevice.cpp.

◆ SwitchMode()

bool MythDRMDevice::SwitchMode ( int ModeIndex )

Set the required video mode.

Note: This is currently only supported when we are authenticated and when using the atomic API. The old/non-atomic API may work but is untested and realistically not much else is going to work without atomic.

Definition at line 651 of file mythdrmdevice.cpp.

◆ Open()

bool MythDRMDevice::Open ( )

private

Definition at line 564 of file mythdrmdevice.cpp.

Referenced by MythDRMDevice().

◆ Authenticate()

void MythDRMDevice::Authenticate ( )

private

Attempt to acquire privileged DRM access.

This function is probably pointless. If we have retrieved a file descriptor from the Qt platform plugin then we are authenticated and if we have not, authentication will always fail (as either X, Wayland or Qt have master privileges)

Definition at line 692 of file mythdrmdevice.cpp.

Referenced by MythDRMDevice().

◆ Load()

void MythDRMDevice::Load ( )

private

Definition at line 717 of file mythdrmdevice.cpp.

Referenced by Initialise().

◆ Initialise()

bool MythDRMDevice::Initialise ( )

private

Definition at line 724 of file mythdrmdevice.cpp.

Referenced by MythDRMDevice().

◆ FindBestDevice()

QString MythDRMDevice::FindBestDevice ( )

private

Definition at line 820 of file mythdrmdevice.cpp.

Referenced by Open().

◆ ConfirmDevice()

bool MythDRMDevice::ConfirmDevice ( const QString & Device )

staticprivate

Definition at line 856 of file mythdrmdevice.cpp.

Referenced by FindBestDevice().

Member Data Documentation

◆ m_valid

bool MythDRMDevice::m_valid { false }

private

Definition at line 83 of file mythdrmdevice.h.

Referenced by Authenticated(), CanSwitchModes(), and MythDRMDevice().

◆ m_screen

QScreen* MythDRMDevice::m_screen { nullptr }

private

Definition at line 84 of file mythdrmdevice.h.

Referenced by FindBestDevice(), GetScreen(), and Initialise().

◆ m_deviceName

QString MythDRMDevice::m_deviceName

private

Definition at line 85 of file mythdrmdevice.h.

Referenced by MythDRMDevice(), and Open().

◆ m_openedDevice

bool MythDRMDevice::m_openedDevice { true }

private

Definition at line 86 of file mythdrmdevice.h.

Referenced by ~MythDRMDevice().

◆ m_fd

int MythDRMDevice::m_fd { -1 }

private

Definition at line 87 of file mythdrmdevice.h.

Referenced by Authenticate(), GetFD(), Initialise(), Load(), Open(), SwitchMode(), and ~MythDRMDevice().

◆ m_atomic

bool MythDRMDevice::m_atomic { false }

private

Definition at line 88 of file mythdrmdevice.h.

Referenced by Atomic(), Authenticate(), CanSwitchModes(), and SwitchMode().

◆ m_authenticated

bool MythDRMDevice::m_authenticated { false }

private

Definition at line 89 of file mythdrmdevice.h.

Referenced by Authenticate(), Authenticated(), CanSwitchModes(), GetModes(), and SwitchMode().

◆ m_connectors

DRMConns MythDRMDevice::m_connectors

private

Definition at line 90 of file mythdrmdevice.h.

Referenced by Initialise(), and Load().

◆ m_encoders

DRMEncs MythDRMDevice::m_encoders

private

Definition at line 91 of file mythdrmdevice.h.

Referenced by Initialise(), and Load().

◆ m_crtcs

DRMCrtcs MythDRMDevice::m_crtcs

private

Definition at line 92 of file mythdrmdevice.h.

Referenced by Initialise(), and Load().

◆ m_planes

DRMPlanes MythDRMDevice::m_planes

private

Definition at line 93 of file mythdrmdevice.h.

◆ m_connector

DRMConn MythDRMDevice::m_connector { nullptr }

private

Definition at line 94 of file mythdrmdevice.h.

Referenced by GetConnector(), GetModes(), Initialise(), and SwitchMode().

◆ m_crtc

DRMCrtc MythDRMDevice::m_crtc { nullptr }

private

Definition at line 95 of file mythdrmdevice.h.

Referenced by GetCrtc(), Initialise(), and SwitchMode().

◆ m_resolution

QSize MythDRMDevice::m_resolution

private

Definition at line 96 of file mythdrmdevice.h.

Referenced by GetResolution(), and Initialise().

◆ m_physicalSize

QSize MythDRMDevice::m_physicalSize

private

Definition at line 97 of file mythdrmdevice.h.

Referenced by GetPhysicalSize(), and Initialise().

◆ m_refreshRate

double MythDRMDevice::m_refreshRate { 0.0 }

private

Definition at line 98 of file mythdrmdevice.h.

Referenced by GetRefreshRate(), and Initialise().

◆ m_adjustedRefreshRate

double MythDRMDevice::m_adjustedRefreshRate { 0.0 }

private

Definition at line 99 of file mythdrmdevice.h.

Referenced by GetRefreshRate(), and SwitchMode().

◆ m_serialNumber

QString MythDRMDevice::m_serialNumber

private

Definition at line 100 of file mythdrmdevice.h.

Referenced by GetSerialNumber(), and Initialise().

◆ m_verbose

LogLevel_t MythDRMDevice::m_verbose { LOG_INFO }

private

Definition at line 101 of file mythdrmdevice.h.

Referenced by Authenticate(), FindBestDevice(), Initialise(), MythDRMDevice(), and ~MythDRMDevice().

◆ m_edid

MythEDID MythDRMDevice::m_edid

private

Definition at line 102 of file mythdrmdevice.h.

Referenced by GetEDID(), and Initialise().

The documentation for this class was generated from the following files:

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ~MythDRMDevice()

◆ MythDRMDevice()

Member Function Documentation

◆ GetDeviceList()

◆ Create()

◆ Authenticated()

◆ Atomic()

◆ GetFD()

◆ GetSerialNumber()

◆ GetScreen()

◆ GetResolution()

◆ GetPhysicalSize()

◆ GetRefreshRate()

◆ GetEDID()

◆ GetCrtc()

◆ GetConnector()

◆ GetModes()

◆ CanSwitchModes()

◆ SwitchMode()

◆ Open()

◆ Authenticate()

◆ Load()

◆ Initialise()

◆ FindBestDevice()

◆ ConfirmDevice()

Member Data Documentation

◆ m_valid

◆ m_screen

◆ m_deviceName

◆ m_openedDevice

◆ m_fd

◆ m_atomic

◆ m_authenticated

◆ m_connectors

◆ m_encoders

◆ m_crtcs

◆ m_planes

◆ m_connector

◆ m_crtc

◆ m_resolution

◆ m_physicalSize

◆ m_refreshRate

◆ m_adjustedRefreshRate

◆ m_serialNumber

◆ m_verbose

◆ m_edid