#include <vncserver.hh>

Inheritance diagram for VncServer:

Classes
class	DataEvent
	DataEvent to read data from vnc. More...

struct	FrameBufferRect

struct	FrameBufferUpdate

class	ListenEvent
	ListenEvent to accept a vnc client connection. More...

struct	ServerCutText

struct	ServerInitMsg

Public Types
enum	ServerMessages { ServerFrameBufferUpdate = 0, ServerSetColorMapEntries = 1, ServerBell = 2, ServerCutText = 3 }
	Server -> Client message IDs. More...

enum	EncodingTypes { EncodingRaw = 0, EncodingCopyRect = 1, EncodingHextile = 5, EncodingDesktopSize = -223 }
	Encoding types. More...

enum	MouseEvents { MouseLeftButton = 0x1, MouseRightButton = 0x2, MouseMiddleButton = 0x4 }
	keyboard/mouse support More...

enum	ConnectionState { WaitForProtocolVersion, WaitForSecurityResponse, WaitForClientInit, InitializationPhase, NormalPhase }

typedef VncServerParams	Params

Public Types inherited from VncInput
enum	ClientMessages { ClientSetPixelFormat = 0, ClientSetEncodings = 2, ClientFrameBufferUpdate = 3, ClientKeyEvent = 4, ClientPointerEvent = 5, ClientCutText = 6 }
	Client -> Server message IDs. More...

typedef VncInputParams	Params

Public Types inherited from SimObject
typedef SimObjectParams	Params

Public Member Functions
const char *	vncVersion () const

	VncServer (const Params *p)
	VncServer. More...

	~VncServer ()

void	setDirty () override
	The frame buffer uses this call to notify the vnc server that the frame buffer has been updated and a new image needs to be sent to the client. More...

void	frameBufferResized () override

Public Member Functions inherited from VncInput
	VncInput (const Params *p)

virtual void	setFrameBuffer (const FrameBuffer *rfb)
	Set the address of the frame buffer we are going to show. More...

void	setKeyboard (VncKeyboard *_keyboard)
	Set up the device that would like to receive notifications when keys are pressed in the vnc client keyboard. More...

void	setMouse (VncMouse *_mouse)
	Setup the device that would like to receive notifications when mouse movements or button presses are received from the vnc client. More...

uint16_t	videoWidth () const
	What is the width of the screen we're displaying. More...

uint16_t	videoHeight () const
	What is the height of the screen we're displaying. More...

Public Member Functions inherited from SimObject
const Params *	params () const

	SimObject (const Params *_params)

virtual	~SimObject ()

virtual const std::string	name () const

virtual void	init ()
	init() is called after all C++ SimObjects have been created and all ports are connected. More...

virtual void	loadState (CheckpointIn &cp)
	loadState() is called on each SimObject when restoring from a checkpoint. More...

virtual void	initState ()
	initState() is called on each SimObject when not restoring from a checkpoint. More...

virtual void	regProbePoints ()
	Register probe points for this object. More...

virtual void	regProbeListeners ()
	Register probe listeners for this object. More...

ProbeManager *	getProbeManager ()
	Get the probe manager for this object. More...

virtual Port &	getPort (const std::string &if_name, PortID idx=InvalidPortID)
	Get a port with a given name and index. More...

virtual void	startup ()
	startup() is the final initialization call before simulation. More...

DrainState	drain () override
	Provide a default implementation of the drain interface for objects that don't need draining. More...

virtual void	memWriteback ()
	Write back dirty buffers to memory using functional writes. More...

virtual void	memInvalidate ()
	Invalidate the contents of memory buffers. More...

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

Public Member Functions inherited from EventManager
	EventManager (EventManager &em)

	EventManager (EventManager *em)

	EventManager (EventQueue *eq)

EventQueue *	eventQueue () const

void	schedule (Event &event, Tick when)

void	deschedule (Event &event)

void	reschedule (Event &event, Tick when, bool always=false)

void	schedule (Event *event, Tick when)

void	deschedule (Event *event)

void	reschedule (Event *event, Tick when, bool always=false)

void	wakeupEventQueue (Tick when=(Tick) -1)

void	setCurTick (Tick newVal)

Public Member Functions inherited from Serializable
	Serializable ()

virtual	~Serializable ()

void	serializeSection (CheckpointOut &cp, const char *name) const
	Serialize an object into a new section. More...

void	serializeSection (CheckpointOut &cp, const std::string &name) const

void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object. More...

void	unserializeSection (CheckpointIn &cp, const std::string &name)

Public Member Functions inherited from Drainable
DrainState	drainState () const
	Return the current drain state of an object. More...

virtual void	notifyFork ()
	Notify a child process of a fork. More...

Public Member Functions inherited from Stats::Group
	Group ()=delete

	Group (const Group &)=delete

Group &	operator= (const Group &)=delete

	Group (Group parent, const char name=nullptr)
	Construct a new statistics group. More...

virtual	~Group ()

virtual void	regStats ()
	Callback to set stat parameters. More...

virtual void	resetStats ()
	Callback to reset stats. More...

virtual void	preDumpStats ()
	Callback before stats are dumped. More...

void	addStat (Stats::Info *info)
	Register a stat with this group. More...

const std::map< std::string, Group * > &	getStatGroups () const
	Get all child groups associated with this object. More...

const std::vector< Info * > &	getStats () const
	Get all stats associated with this object. More...

void	addStatGroup (const char name, Group block)
	Add a stat block as a child of this block. More...

Public Attributes
struct VncServer::ServerInitMsg	M5_ATTR_PACKED

struct VncServer::FrameBufferUpdate	M5_ATTR_PACKED

struct VncServer::FrameBufferRect	M5_ATTR_PACKED

struct VncServer::ServerCutText	M5_ATTR_PACKED

Public Attributes inherited from VncInput
struct VncInput::PixelFormat	M5_ATTR_PACKED

struct VncInput::PixelFormatMessage	M5_ATTR_PACKED

struct VncInput::PixelEncodingsMessage	M5_ATTR_PACKED

struct VncInput::FrameBufferUpdateReq	M5_ATTR_PACKED

struct VncInput::KeyEventMessage	M5_ATTR_PACKED

struct VncInput::PointerEventMessage	M5_ATTR_PACKED

struct VncInput::ClientCutTextMessage	M5_ATTR_PACKED

Static Public Attributes
static const uint32_t	AuthInvalid = 0
	Authentication modes. More...

static const uint32_t	AuthNone = 1

static const uint32_t	VncOK = 0
	Error conditions. More...

Static Public Attributes inherited from Serializable
static int	ckptCount = 0

static int	ckptMaxCount = 0

static int	ckptPrevCount = -1

Protected Member Functions
void	listen (int port)

void	accept ()

void	data ()

void	detach ()

void	sendError (const char *error_msg)
	vnc client Interface More...

bool	read (uint8_t *buf, size_t len)
	Read some data from the client. More...

bool	read1 (uint8_t *buf, size_t len)
	Read len -1 bytes from the client into the buffer provided + 1 assert that we read enough bytes. More...

template<typename T >
bool	read (T *val)
	Templated version of the read function above to read simple data to the client. More...

bool	write (const uint8_t *buf, size_t len)
	Write a buffer to the client. More...

template<typename T >
bool	write (T *val)
	Templated version of the write function above to write simple data to the client. More...

bool	write (const char *str)
	Send a string to the client. More...

void	checkProtocolVersion ()
	Check the client's protocol verion for compatibility and send the security types we support. More...

void	checkSecurity ()
	Check that the security exchange was successful. More...

void	sendServerInit ()
	Send client our idea about what the frame buffer looks like. More...

void	sendError (std::string error_msg)
	Send an error message to the client when something goes wrong. More...

void	sendFrameBufferUpdate ()
	Send a updated frame buffer to the client. More...

void	setPixelFormat ()
	Receive pixel foramt message from client and process it. More...

void	setEncodings ()
	Receive encodings message from client and process it. More...

void	requestFbUpdate ()
	Receive message from client asking for updated frame buffer. More...

void	recvKeyboardInput ()
	Receive message from client providing new keyboard input. More...

void	recvPointerInput ()
	Recv message from client providing new mouse movement or button click. More...

void	recvCutText ()
	Receive message from client that there is text in it's paste buffer. More...

void	sendFrameBufferResized ()
	Tell the client that the frame buffer resized. More...

Protected Member Functions inherited from VncInput
void	captureFrameBuffer ()
	Captures the current frame buffer to a file. More...

Protected Member Functions inherited from Drainable
	Drainable ()

virtual	~Drainable ()

virtual void	drainResume ()
	Resume execution after a successful drain. More...

void	signalDrainDone () const
	Signal that an object is drained. More...

Protected Attributes
ListenEvent *	listenEvent

DataEvent *	dataEvent

int	number

int	dataFd

ListenSocket	listener

ConnectionState	curState
	The rfb prototol state the connection is in. More...

bool	sendUpdate
	An update needs to be sent to the client. More...

PixelFormat	pixelFormat
	The one and only pixel format we support. More...

bool	supportsRawEnc
	If the vnc client supports receiving raw data. More...

bool	supportsResizeEnc
	If the vnc client supports the desktop resize command. More...

Protected Attributes inherited from VncInput
VncKeyboard *	keyboard
	The device to notify when we get key events. More...

VncMouse *	mouse
	The device to notify when we get mouse events. More...

const FrameBuffer *	fb
	pointer to the actual data that is stored in the frame buffer device More...

uint16_t	_videoWidth
	the width of the frame buffer we are sending to the client More...

uint16_t	_videoHeight
	the height of the frame buffer we are sending to the client More...

bool	captureEnabled
	Flag indicating whether to capture snapshots of frame buffer or not. More...

int	captureCurrentFrame
	Current frame number being captured to a file. More...

OutputDirectory *	captureOutputDirectory
	Directory to store captured frames to. More...

uint64_t	captureLastHash
	Computed hash of the last captured frame. More...

std::unique_ptr< ImgWriter >	captureImage
	Cached ImgWriter object for writing out frame buffers to file. More...

Enums::ImageFormat	imgFormat
	image format More...

Protected Attributes inherited from SimObject
const SimObjectParams *	_params
	Cached copy of the object parameters. More...

Protected Attributes inherited from EventManager
EventQueue *	eventq
	A pointer to this object's event queue. More...

Static Protected Attributes
static const PixelConverter	pixelConverter

Friends
class	ListenEvent

class	DataEvent

Additional Inherited Members
Static Public Member Functions inherited from SimObject
static void	serializeAll (CheckpointOut &cp)
	Serialize all SimObjects in the system. More...

static SimObject *	find (const char *name)
	Find the SimObject with the given name and return a pointer to it. More...

Static Public Member Functions inherited from Serializable
static const std::string &	currentSection ()
	Get the fully-qualified name of the active section. More...

static void	serializeAll (const std::string &cpt_dir)

static void	unserializeGlobals (CheckpointIn &cp)

Detailed Description

Definition at line 61 of file vncserver.hh.

Member Typedef Documentation

◆ Params

typedef VncServerParams VncServer::Params

Definition at line 182 of file vncserver.hh.

Constructor & Destructor Documentation

◆ VncServer()

VncServer::VncServer ( const Params * p )

◆ ~VncServer()

VncServer::~VncServer ( )

Definition at line 148 of file vncserver.cc.

References dataEvent, dataFd, and listenEvent.

Member Function Documentation

◆ accept()

void VncServer::accept ( )

protected

Definition at line 186 of file vncserver.cc.

References ListenSocket::accept(), atomic_write(), DataEvent, dataEvent, dataFd, EventManager::eventQueue(), ArmISA::fd, inform, ListenSocket::islistening(), listener, SimObject::name(), panic, pollQueue, PollQueue::schedule(), vncVersion(), warn, and write().

Referenced by VncServer::ListenEvent::process().

◆ checkProtocolVersion()

void VncServer::checkProtocolVersion ( )

protected

Check the client's protocol verion for compatibility and send the security types we support.

Definition at line 380 of file vncserver.cc.

References AuthInvalid, AuthNone, curState, detach(), DPRINTF, htobe(), ArmISA::len, M5_VAR_USED, read(), sendError(), WaitForProtocolVersion, WaitForSecurityResponse, warn, and write().

Referenced by data().

◆ checkSecurity()

void VncServer::checkSecurity ( )

protected

Check that the security exchange was successful.

Definition at line 432 of file vncserver.cc.

References AuthNone, curState, DPRINTF, htobe(), read(), sendError(), VncOK, WaitForClientInit, WaitForSecurityResponse, warn, and write().

Referenced by data().

◆ data()

void VncServer::data ( )

protected

◆ detach()

void VncServer::detach ( )

protected

Definition at line 351 of file vncserver.cc.

References curState, dataEvent, dataFd, DPRINTF, inform, number, pollQueue, PollEvent::queued(), PollQueue::remove(), and WaitForProtocolVersion.

Referenced by checkProtocolVersion(), data(), frameBufferResized(), VncServer::DataEvent::process(), read(), setEncodings(), setPixelFormat(), and write().

◆ frameBufferResized()

void VncServer::frameBufferResized ( )

overridevirtual

Reimplemented from VncInput.

Definition at line 725 of file vncserver.cc.

References curState, dataFd, detach(), NormalPhase, sendFrameBufferResized(), supportsResizeEnc, and VncServer().

◆ listen()

void VncServer::listen ( int port )

protected

Definition at line 163 of file vncserver.cc.

References ListenSocket::allDisabled(), ccprintf(), DPRINTF, ListenSocket::getfd(), ListenSocket::listen(), listener, ListenEvent, listenEvent, SimObject::name(), pollQueue, PollQueue::schedule(), and warn_once.

Referenced by VncServer().

◆ read() [1/2]

bool VncServer::read	(	uint8_t *	buf,
		size_t	len
	)

protected

Read some data from the client.

Parameters

buf	the data to read
len	the amount of data to read

Returns: whether the read was successful

Definition at line 284 of file vncserver.cc.

References dataFd, detach(), DPRINTF, and panic.

Referenced by checkProtocolVersion(), checkSecurity(), data(), read(), read1(), recvCutText(), and setEncodings().

◆ read() [2/2]

template<typename T >

bool VncServer::read ( T * val )

protected

Templated version of the read function above to read simple data to the client.

Parameters

val	data to recv from the client

Definition at line 313 of file vncserver.cc.

References read().

◆ read1()

bool VncServer::read1	(	uint8_t *	buf,
		size_t	len
	)

protected

Read len -1 bytes from the client into the buffer provided + 1 assert that we read enough bytes.

This function exists to handle reading all of the protocol structs above when we've already read the first byte which describes which one we're reading

Parameters

buf	the address of the buffer to add one to and read data into
len	the amount of data + 1 to read

Returns: whether the read was successful.

Definition at line 305 of file vncserver.cc.

References read().

Referenced by recvCutText(), recvKeyboardInput(), recvPointerInput(), requestFbUpdate(), setEncodings(), and setPixelFormat().

◆ recvCutText()

void VncServer::recvCutText ( )

protected

Receive message from client that there is text in it's paste buffer.

This is a no-op at the moment, but perhaps we would want to be able to paste it at some point.

Definition at line 606 of file vncserver.cc.

References betoh(), DPRINTF, read(), and read1().

Referenced by data().

◆ recvKeyboardInput()

void VncServer::recvKeyboardInput ( )

protected

Receive message from client providing new keyboard input.

Definition at line 572 of file vncserver.cc.

References betoh(), DPRINTF, VncInput::KeyEventMessage::key, VncInput::keyboard, VncKeyboard::keyPress(), and read1().

Referenced by data().

◆ recvPointerInput()

void VncServer::recvPointerInput ( )

protected

Recv message from client providing new mouse movement or button click.

Definition at line 588 of file vncserver.cc.

References betoh(), DPRINTF, VncInput::mouse, VncMouse::mouseAt(), read1(), and VncInput::PointerEventMessage::x.

Referenced by data().

◆ requestFbUpdate()

void VncServer::requestFbUpdate ( )

protected

Receive message from client asking for updated frame buffer.

Definition at line 552 of file vncserver.cc.

References betoh(), DPRINTF, read1(), sendFrameBufferUpdate(), and VncInput::FrameBufferUpdateReq::x.

Referenced by data().

◆ sendError() [1/2]

void VncServer::sendError ( const char * error_msg )

protected

vnc client Interface

Send an error message to the client

Parameters

error_msg text to send describing the error

Definition at line 371 of file vncserver.cc.

References ArmISA::len, and write().

Referenced by checkProtocolVersion(), and checkSecurity().

◆ sendError() [2/2]

void VncServer::sendError ( std::string error_msg )

protected

Send an error message to the client when something goes wrong.

Parameters

error_msg error to send

◆ sendFrameBufferResized()

void VncServer::sendFrameBufferResized ( )

protected

Tell the client that the frame buffer resized.

This happens when the simulated system changes video modes (E.g. X11 starts).

Definition at line 683 of file vncserver.cc.

References curState, dataFd, DPRINTF, VncServer::FrameBufferRect::encoding, EncodingDesktopSize, VncInput::fb, VncServer::FrameBufferRect::height, htobe(), NormalPhase, VncServer::FrameBufferUpdate::num_rects, ServerFrameBufferUpdate, VncServer::FrameBufferUpdate::type, VncInput::videoHeight(), VncInput::videoWidth(), VncServer::FrameBufferRect::width, write(), VncServer::FrameBufferRect::x, and VncServer::FrameBufferRect::y.

Referenced by frameBufferResized().

◆ sendFrameBufferUpdate()

void VncServer::sendFrameBufferUpdate ( )

protected

Send a updated frame buffer to the client.

Todo:: this doesn't do anything smart and just sends the entire image

Definition at line 630 of file vncserver.cc.

References curState, dataFd, DPRINTF, VncServer::FrameBufferRect::encoding, EncodingRaw, VncInput::fb, PixelConverter::fromPixel(), FrameBuffer::height(), VncServer::FrameBufferRect::height, htobe(), PixelConverter::length, NormalPhase, VncServer::FrameBufferUpdate::num_rects, FrameBuffer::pixel(), pixelConverter, sendUpdate, ServerFrameBufferUpdate, VncServer::FrameBufferUpdate::type, VncInput::videoHeight(), VncInput::videoWidth(), FrameBuffer::width(), VncServer::FrameBufferRect::width, write(), X86ISA::x, VncServer::FrameBufferRect::x, and VncServer::FrameBufferRect::y.

Referenced by requestFbUpdate(), and setDirty().

◆ sendServerInit()

void VncServer::sendServerInit ( )

protected

Send client our idea about what the frame buffer looks like.

Definition at line 454 of file vncserver.cc.

Referenced by data().

◆ setDirty()

void VncServer::setDirty ( )

overridevirtual

The frame buffer uses this call to notify the vnc server that the frame buffer has been updated and a new image needs to be sent to the client.

Reimplemented from VncInput.

Definition at line 716 of file vncserver.cc.

References sendFrameBufferUpdate(), sendUpdate, and VncInput::setDirty().

◆ setEncodings()

void VncServer::setEncodings ( )

protected

Receive encodings message from client and process it.

Definition at line 516 of file vncserver.cc.

References betoh(), detach(), DPRINTF, ArmISA::encoding, EncodingDesktopSize, EncodingRaw, VncInput::PixelEncodingsMessage::num_encodings, read(), read1(), supportsRawEnc, supportsResizeEnc, warn, and X86ISA::x.

Referenced by data().

◆ setPixelFormat()

void VncServer::setPixelFormat ( )

protected

Receive pixel foramt message from client and process it.

Definition at line 484 of file vncserver.cc.

References betoh(), VncInput::PixelFormat::bigendian, VncInput::PixelFormat::bluemax, VncInput::PixelFormat::blueshift, VncInput::PixelFormat::bpp, VncInput::PixelFormat::depth, detach(), DPRINTF, VncInput::PixelFormat::greenmax, VncInput::PixelFormat::greenshift, pixelFormat, read1(), VncInput::PixelFormat::redmax, VncInput::PixelFormat::redshift, VncInput::PixelFormat::truecolor, and warn.

Referenced by data().

◆ write() [1/3]

bool VncServer::write	(	const uint8_t *	buf,
		size_t	len
	)

protected

Write a buffer to the client.

Parameters

buf	buffer to send
len	length of the buffer

Returns: whether the write was successful

Definition at line 320 of file vncserver.cc.

References atomic_write(), dataFd, detach(), DPRINTF, and panic.

Referenced by accept(), checkProtocolVersion(), checkSecurity(), sendError(), sendFrameBufferResized(), sendFrameBufferUpdate(), sendServerInit(), and write().

◆ write() [2/3]

template<typename T >

bool VncServer::write ( T * val )

protected

Templated version of the write function above to write simple data to the client.

Parameters

val	data to send to the client

Definition at line 338 of file vncserver.cc.

References write().

◆ write() [3/3]

bool VncServer::write ( const char * str )

protected

Send a string to the client.

Parameters

str	string to transmit

Definition at line 344 of file vncserver.cc.

References write().

Friends And Related Function Documentation

◆ DataEvent

friend class DataEvent

friend

Definition at line 168 of file vncserver.hh.

Referenced by accept().

◆ ListenEvent

friend class ListenEvent

friend

Definition at line 154 of file vncserver.hh.

Referenced by listen().

Member Data Documentation

◆ curState

ConnectionState VncServer::curState

protected

The rfb prototol state the connection is in.

Definition at line 190 of file vncserver.hh.

Referenced by checkProtocolVersion(), checkSecurity(), data(), detach(), frameBufferResized(), sendFrameBufferResized(), sendFrameBufferUpdate(), sendServerInit(), and VncServer().

◆ dataEvent

DataEvent* VncServer::dataEvent

protected

Definition at line 169 of file vncserver.hh.

Referenced by accept(), detach(), and ~VncServer().

◆ dataFd

int VncServer::dataFd

protected

Definition at line 172 of file vncserver.hh.

Referenced by accept(), detach(), frameBufferResized(), read(), sendFrameBufferResized(), sendFrameBufferUpdate(), write(), and ~VncServer().

◆ listener

ListenSocket VncServer::listener

protected

Definition at line 174 of file vncserver.hh.

Referenced by accept(), and listen().

◆ listenEvent

ListenEvent* VncServer::listenEvent

protected

Definition at line 155 of file vncserver.hh.

Referenced by listen(), and ~VncServer().

◆ number

int VncServer::number

protected

Definition at line 171 of file vncserver.hh.

Referenced by detach().

◆ pixelConverter

const PixelConverter VncServer::pixelConverter

staticprotected

Definition at line 306 of file vncserver.hh.

Referenced by sendFrameBufferUpdate(), and VncServer().

◆ pixelFormat

PixelFormat VncServer::pixelFormat

protected

The one and only pixel format we support.

Definition at line 197 of file vncserver.hh.

Referenced by sendServerInit(), setPixelFormat(), and VncServer().

◆ sendUpdate

bool VncServer::sendUpdate

protected

An update needs to be sent to the client.

Without doing this the client will constantly request data that is pointless

Definition at line 194 of file vncserver.hh.

Referenced by sendFrameBufferUpdate(), and setDirty().

◆ supportsRawEnc

bool VncServer::supportsRawEnc

protected

If the vnc client supports receiving raw data.

It always should

Definition at line 200 of file vncserver.hh.

Referenced by setEncodings().

◆ supportsResizeEnc

bool VncServer::supportsResizeEnc

protected

If the vnc client supports the desktop resize command.

Definition at line 203 of file vncserver.hh.

Referenced by frameBufferResized(), and setEncodings().

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

base/vnc/vncserver.hh
base/vnc/vncserver.cc

Classes

Public Types

Public Member Functions

Public Attributes

Static Public Attributes

Protected Member Functions

Protected Attributes

Static Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Params

Constructor & Destructor Documentation

◆ VncServer()

◆ ~VncServer()

Member Function Documentation

◆ accept()

◆ checkProtocolVersion()

◆ checkSecurity()

◆ data()

◆ detach()

◆ frameBufferResized()

◆ listen()

◆ read() [1/2]

◆ read() [2/2]

◆ read1()

◆ recvCutText()

◆ recvKeyboardInput()

◆ recvPointerInput()

◆ requestFbUpdate()

◆ sendError() [1/2]

◆ sendError() [2/2]

◆ sendFrameBufferResized()

◆ sendFrameBufferUpdate()

◆ sendServerInit()

◆ setDirty()

◆ setEncodings()

◆ setPixelFormat()

◆ write() [1/3]

◆ write() [2/3]

◆ write() [3/3]

Friends And Related Function Documentation

◆ DataEvent

◆ ListenEvent

Member Data Documentation

◆ curState

◆ dataEvent

◆ dataFd

◆ listener

◆ listenEvent

◆ number

◆ pixelConverter

◆ pixelFormat

◆ sendUpdate

◆ supportsRawEnc

◆ supportsResizeEnc