A holder for multiple images. More...

#include <frameData.h>

Inheritance diagram for eq::FrameData:

Collaboration diagram for eq::FrameData:

Classes
struct	Data
struct	ImageHeader
Public Member Functions
void	assembleFrame (Frame frame, Channel channel)
	FrameData ()
	Construct a new frame data holder.
virtual	~FrameData ()
	Destruct this frame data.
bool	addImage (const NodeFrameDataTransmitPacket *packet)
void	setReady (const NodeFrameDataReadyPacket *packet)
Data Access
uint32_t	getBuffers () const
void	setBuffers (const uint32_t buffers)
	Set the enabled frame buffer attachments.
const Range &	getRange () const
	Get the range.
void	setRange (const Range &range)
	Set the range of this frame.
const Pixel &	getPixel () const
const SubPixel &	getSubPixel () const
uint32_t	getPeriod () const
uint32_t	getPhase () const
const Images &	getImages () const
	The images of this frame data holder.
void	setPixelViewport (const PixelViewport &pvp)
	Set the covered area for readbacks.
void	setAlphaUsage (const bool useAlpha)
	Set alpha usage for newly allocated images.
void	setQuality (const Frame::Buffer buffer, const float quality)
	Set the minimum quality after download and compression.
void	setZoom (const Zoom &zoom)
const Zoom &	getZoom () const
Operations
Image *	newImage (const Frame::Type type, const DrawableConfig &config)
	Allocate and add a new image.
void	flush ()
	Flush the frame by deleting all images.
void	clear ()
	Clear the frame by recycling the attached images.
void	readback (const Frame &frame, util::ObjectManager< const void * > *glObjects, const DrawableConfig &config)
	Read back an image for this frame data.
void	setReady ()
	Set the frame data ready.
bool	isReady () const
void	waitReady () const
	Wait for the frame data to become available.
void	setVersion (const uint64_t version)
void	addListener (co::base::Monitor< uint32_t > &listener)
	Add a ready listener.
void	removeListener (co::base::Monitor< uint32_t > &listener)
	Remove a frame listener.
void	disableBuffer (const Frame::Buffer buffer)
	Disable the usage of a frame buffer attachment for all images.
Protected Member Functions
virtual ChangeType	getChangeType () const
virtual void	getInstanceData (co::DataOStream &os)
	Serialize all instance information of this distributed object.
virtual void	applyInstanceData (co::DataIStream &is)
	Deserialize the instance data.
Friends
struct	NodeFrameDataReadyPacket
class	server::FrameData

Detailed Description

A holder for multiple images.

The FrameData is used to connect the Image data for multiple frames. Equalizer uses the same frame data for all input and output frames of the same name. This enables frame-specific parameters to be set on the Frame, and generic parameters (of the output frame) to be set on the FrameData, as well as ready synchronization of the pixel data.

An application may allocate its own Frame and FrameData for application-specific purposes.

Parameters set on an Equalizer output frame data are automatically transported to the corresponding input frames.

Definition at line 61 of file include/eq/frameData.h.

Constructor & Destructor Documentation

eq::FrameData::FrameData ( )

Construct a new frame data holder.

Version:: 1.0

virtual eq::FrameData::~FrameData ( ) [virtual]

Destruct this frame data.

Version:: 1.0

Member Function Documentation

void eq::FrameData::addListener ( co::base::Monitor< uint32_t > & listener )

Add a ready listener.

The listener value will will be incremented when the frame is ready, which might happen immediately.

Parameters:

listener the listener.

Version:: 1.0

virtual void eq::FrameData::applyInstanceData ( co::DataIStream & is ) [protected, virtual]

Deserialize the instance data.

This method is called during object mapping to populate slave instances with the master object's data.

Parameters:

is	the input stream.

Implements co::Object.

void eq::FrameData::clear ( )

Clear the frame by recycling the attached images.

Version:: 1.0

void eq::FrameData::disableBuffer ( const Frame::Buffer buffer ) [inline]

Disable the usage of a frame buffer attachment for all images.

Parameters:

buffer the buffer to disable.

Version:: 1.0

Definition at line 254 of file include/eq/frameData.h.

void eq::FrameData::flush ( )

Flush the frame by deleting all images.

Version:: 1.0

uint32_t eq::FrameData::getBuffers ( ) const [inline]

Returns:: the enabled frame buffer attachments.

Version:: 1.0

Definition at line 86 of file include/eq/frameData.h.

virtual ChangeType eq::FrameData::getChangeType ( ) const [inline, protected, virtual]

Returns:: how the changes are to be handled.

Reimplemented from co::Object.

Definition at line 263 of file include/eq/frameData.h.

References co::Object::INSTANCE.

const Images& eq::FrameData::getImages ( ) const [inline]

The images of this frame data holder.

Version:: 1.0

Definition at line 136 of file include/eq/frameData.h.

virtual void eq::FrameData::getInstanceData ( co::DataOStream & os ) [protected, virtual]

Serialize all instance information of this distributed object.

Parameters:

os	The output stream.

Implements co::Object.

uint32_t eq::FrameData::getPeriod ( ) const [inline]

Returns:: the DPlex period relative to the destination channel.

Version:: 1.0

Definition at line 127 of file include/eq/frameData.h.

uint32_t eq::FrameData::getPhase ( ) const [inline]

Returns:: the DPlex phase relative to the destination channel.

Version:: 1.0

Definition at line 133 of file include/eq/frameData.h.

const Pixel& eq::FrameData::getPixel ( ) const [inline]

Returns:: the pixel decomposition wrt the destination channel.

Version:: 1.0

Definition at line 115 of file include/eq/frameData.h.

const Range& eq::FrameData::getRange ( ) const [inline]

Get the range.

The range is set for Equalizer frames to the range of the frame data relative to the destination channel.

Returns:: the database-range.

Version:: 1.0

Definition at line 106 of file include/eq/frameData.h.

const SubPixel& eq::FrameData::getSubPixel ( ) const [inline]

Returns:: the subpixel decomposition wrt the destination channel.

Version:: 1.0

Definition at line 121 of file include/eq/frameData.h.

bool eq::FrameData::isReady ( ) const [inline]

Returns:: true if the frame data is ready.

Version:: 1.0

Definition at line 221 of file include/eq/frameData.h.

References co::base::Monitor< T >::get().

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Image* eq::FrameData::newImage	(	const Frame::Type	type,
		const DrawableConfig &	config
	)

Allocate and add a new image.

The allocated image inherits the current quality, storage type from this frame data and the internal format corresponding to the given drawable config.

Returns:: the image.

Version:: 1.0

void eq::FrameData::readback	(	const Frame &	frame,
		util::ObjectManager< const void * > *	glObjects,
		const DrawableConfig &	config
	)

Read back an image for this frame data.

The newly read images are added to the data using newImage(). Existing images are retained.

Parameters:

frame	the corresponding output frame holder.
glObjects	the GL object manager for the current GL context.
config	the configuration of the source frame buffer.

Version:: 1.0

void eq::FrameData::removeListener ( co::base::Monitor< uint32_t > & listener )

Remove a frame listener.

Parameters:

listener the listener.

Version:: 1.0

void eq::FrameData::setAlphaUsage ( const bool useAlpha ) [inline]

Set alpha usage for newly allocated images.

Disabling alpha allows the selection of download or compression plugins which drop the alpha channel for better performance.

Version:: 1.0

Definition at line 155 of file include/eq/frameData.h.

void eq::FrameData::setBuffers ( const uint32_t buffers ) [inline]

Set the enabled frame buffer attachments.

The default buffers are set for Equalizer input and output frames according to the configuration, or to 0 for application-created frame datas.

Definition at line 95 of file include/eq/frameData.h.

void eq::FrameData::setPixelViewport ( const PixelViewport & pvp ) [inline]

Set the covered area for readbacks.

Preset for Equalizer output frames. The given pixel viewport is used together with the Frame offset to compute the area for the readback() operation.

Version:: 1.0

Definition at line 146 of file include/eq/frameData.h.

void eq::FrameData::setQuality	(	const Frame::Buffer	buffer,
		const float	quality
	)

Set the minimum quality after download and compression.

Setting a lower quality decreases the image quality while increasing the performance of scalable rendering. An application typically selects a lower quality during interaction. Setting a quality of 1.0 provides lossless image compositing.