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
void	useCompressor (const Frame::Buffer buffer, const uint32_t name)
	Sets a compressor which will be allocated and used during transmit of the image buffer.
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 uint32_t timeout=EQ_TIMEOUT_INDEFINITE) 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 59 of file include/eq/client/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 264 of file include/eq/client/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 84 of file include/eq/client/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 273 of file include/eq/client/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 134 of file include/eq/client/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 125 of file include/eq/client/frameData.h.

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

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

Version:: 1.0

Definition at line 131 of file include/eq/client/frameData.h.

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

Returns:: the pixel decomposition wrt the destination channel.

Version:: 1.0

Definition at line 113 of file include/eq/client/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 104 of file include/eq/client/frameData.h.

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

Returns:: the subpixel decomposition wrt the destination channel.

Version:: 1.0

Definition at line 119 of file include/eq/client/frameData.h.

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

Returns:: true if the frame data is ready.

Version:: 1.0

Definition at line 231 of file include/eq/client/frameData.h.

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

Here is the call graph for this function:

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

Referenced by eqPixelBench::Channel::Channel().

Here is the caller graph for this function:

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 153 of file include/eq/client/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 93 of file include/eq/client/frameData.h.

Referenced by eVolve::Channel::Channel().

Here is the caller graph for this function:

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 144 of file include/eq/client/frameData.h.

Referenced by eVolve::Channel::frameAssemble().

Here is the caller graph for this function:

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.

Version:: 1.0

void eq::FrameData::setRange ( const Range & range ) [inline]

Set the range of this frame.

Version:: 1.0

Definition at line 107 of file include/eq/client/frameData.h.

Referenced by eVolve::Channel::frameAssemble(), and eVolve::Channel::frameReadback().

Here is the caller graph for this function:

void eq::FrameData::setReady ( )

Set the frame data ready.

The frame data is automatically set ready by readback() and after receiving an output frame.

Version:: 1.0

void eq::FrameData::useCompressor	(	const Frame::Buffer	buffer,
		const uint32_t	name
	)

Sets a compressor which will be allocated and used during transmit of the image buffer.

The default compressor is EQ_COMPRESSOR_AUTO which selects the most suitable compressor wrt the current image and buffer parameters.

See also:: _chooseCompressor()

Parameters:

buffer	the frame buffer attachment.
name	the compressor name.

void eq::FrameData::waitReady ( const uint32_t timeout = EQ_TIMEOUT_INDEFINITE ) const

Wait for the frame data to become available.

Version:: 1.0

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

include/eq/client/frameData.h

Classes

Public Member Functions

Protected Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation