ArgusSamples::Composer Class Reference

The composer is used to render multiple EGL streams into the windows. More...

#include <Composer.h>

List of all members.

Classes
class	Stream
	Each bound EGL stream has a stream consumer and can be active or inactive. More...

Public Member Functions
bool	shutdown ()
	Shutdown, free all resources.
bool	bindStream (EGLStreamKHR eglStream)
	Bind an EGL stream.
bool	unbindStream (EGLStreamKHR eglStream)
	Unbind a bound EGL stream.
bool	setStreamActive (EGLStreamKHR eglStream, bool active)
	Set the active state of the stream, only active streams are rendered.
bool	setStreamAspectRatio (EGLStreamKHR eglStream, float aspectRatio)
	Set the stream aspect ratio.
EGLDisplay	getEGLDisplay ()
	Get the EGL display.

Static Public Member Functions
static Composer &	getInstance ()
	Get the composer instance.

Private Types
typedef std::list< Stream >	StreamList
	a list of streams

Private Member Functions
	Composer ()
	~Composer ()
	Composer (const Composer &)
Composer &	operator= (const Composer &)
bool	initialize ()
bool	renderStreams (uint32_t activeStreams)
Thread methods
virtual bool	threadInitialize ()
virtual bool	threadExecute ()
virtual bool	threadShutdown ()
IResizeObserver methods
virtual bool	onResize (uint32_t width, uint32_t height)

Private Attributes
bool	m_initialized
	set if initialized
EGLDisplayHolder	m_display
	EGL display.
GLContext	m_context
	GL context.
uint32_t	m_program
	program to render streams
uint32_t	m_vbo
	vertex buffer object
uint32_t	m_windowWidth
	window width
uint32_t	m_windowHeight
	window height
float	m_windowAspectRatio
	window aspect ratio
Mutex	m_mutex
	to protect access to the stream array
StreamList	m_streams
	the list of composed streams

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Detailed Description

The composer is used to render multiple EGL streams into the windows.

The streams are arranged into a regular grid.

Definition at line 51 of file Composer.h.

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Member Typedef Documentation

typedef std::list<Stream> ArgusSamples::Composer::StreamList

private

a list of streams

Definition at line 160 of file Composer.h.

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Constructor & Destructor Documentation

ArgusSamples::Composer::Composer ( )

private

Definition at line 48 of file Composer.cpp.

ArgusSamples::Composer::~Composer ( )

private

Definition at line 58 of file Composer.cpp.

ArgusSamples::Composer::Composer ( const Composer &  )

private

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Member Function Documentation

bool ArgusSamples::Composer::bindStream

(

EGLStreamKHR

eglStream

)

Bind an EGL stream.

A bound and active stream is rendered. Newly bound streams are inactive.

Parameters:

eglStream

[in]

Definition at line 129 of file Composer.cpp.

EGLDisplay ArgusSamples::Composer::getEGLDisplay ( )

inline

Get the EGL display.

Definition at line 97 of file Composer.h.

Composer & ArgusSamples::Composer::getInstance ( )

static

Get the composer instance.

Definition at line 64 of file Composer.cpp.

bool ArgusSamples::Composer::initialize ( )

private

Definition at line 85 of file Composer.cpp.

bool ArgusSamples::Composer::onResize ( uint32_t  width, uint32_t  height  )

privatevirtual

Definition at line 214 of file Composer.cpp.

Composer& ArgusSamples::Composer::operator= ( const Composer &  )

private

bool ArgusSamples::Composer::renderStreams ( uint32_t  activeStreams )

private

Definition at line 277 of file Composer.cpp.

bool ArgusSamples::Composer::setStreamActive	(	EGLStreamKHR	eglStream,
		bool	active
	)

Set the active state of the stream, only active streams are rendered.

Parameters:

eglStream	[in]
active	[in]

Definition at line 176 of file Composer.cpp.

bool ArgusSamples::Composer::setStreamAspectRatio	(	EGLStreamKHR	eglStream,
		float	aspectRatio
	)

Set the stream aspect ratio.

Parameters:

eglStream	[in]
aspectRatio	[in] aspect ration of the images transported by the stream

Definition at line 195 of file Composer.cpp.

bool ArgusSamples::Composer::shutdown

(

)

Shutdown, free all resources.

Definition at line 110 of file Composer.cpp.

bool ArgusSamples::Composer::threadExecute ( )

privatevirtual

Definition at line 342 of file Composer.cpp.

bool ArgusSamples::Composer::threadInitialize ( )

privatevirtual

Definition at line 222 of file Composer.cpp.

bool ArgusSamples::Composer::threadShutdown ( )

privatevirtual

Definition at line 396 of file Composer.cpp.

bool ArgusSamples::Composer::unbindStream

(

EGLStreamKHR

eglStream

)

Unbind a bound EGL stream.

Parameters:

eglStream

[in]

Definition at line 156 of file Composer.cpp.

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Member Data Documentation

GLContext ArgusSamples::Composer::m_context

private

GL context.

Definition at line 133 of file Composer.h.

EGLDisplayHolder ArgusSamples::Composer::m_display

private

EGL display.

Definition at line 131 of file Composer.h.

bool ArgusSamples::Composer::m_initialized

private

set if initialized

Definition at line 129 of file Composer.h.

Mutex ArgusSamples::Composer::m_mutex

private

to protect access to the stream array

Definition at line 140 of file Composer.h.

uint32_t ArgusSamples::Composer::m_program

private

program to render streams

Definition at line 134 of file Composer.h.

StreamList ArgusSamples::Composer::m_streams

private

the list of composed streams

Definition at line 161 of file Composer.h.

uint32_t ArgusSamples::Composer::m_vbo

private

vertex buffer object

Definition at line 135 of file Composer.h.

float ArgusSamples::Composer::m_windowAspectRatio

private

window aspect ratio

Definition at line 138 of file Composer.h.

uint32_t ArgusSamples::Composer::m_windowHeight

private

window height

Definition at line 137 of file Composer.h.

uint32_t ArgusSamples::Composer::m_windowWidth

private

window width

Definition at line 136 of file Composer.h.

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

• renderer/Composer.h
• renderer/Composer.cpp