Bitmap streamer class. More...

#include <ilviews/bitmaps/tiff.h>

Inheritance diagram for IlvTIFFStreamer:

Public Member Functions
	IlvTIFFStreamer ()
	Constructor.

IlBoolean	canRead () const
	Indicates that the instance can read from a stream. More...

IlBoolean	canWrite () const
	Indicates that the instance can write to a stream. More...

IlBoolean	checkSignature (const IlUChar *data, IlUInt size)
	Indicates whether the instance can handle the stream. More...

virtual void	closeStream (IlAny identifier)
	Closes a stream. More...

Compression	getCompression () const
	Returns the compression mode. More...

IlUInt	getRowsPerStrip () const
	Returns The number of rows per strip used when saving. More...

IlBoolean	getTagValue (IlAny identifier, IlUInt tag, IlUInt &count, IlAny value=0)
	Returns the value of a given tag in a stream. More...

IlUInt	getTileHeight () const
	Returns The tile height used when saving. More...

IlUInt	getTileWidth () const
	Returns the tile width used when saving. More...

Mode	getWriteMode () const
	Returns the write mode. More...

virtual IlAny	openStream (ILVSTDPREF istream &stream)
	Opens the stream. More...

IlvBitmapData *	read (ILVSTDPREF istream &stream)
	Reads a TIFF image from a stream. More...

IlvBitmapInformation *	readInfo (ILVSTDPREF istream &stream)
	Reads image information from a stream. More...

IlvBitmapData *	readTile (ILVSTDPREF istream &stream, IlUShort x, IlUShort y)
	Reads a TIFF tile from a stream. More...

void	setCompression (Compression compression)
	Sets the compression mode used when writing. More...

void	setRowsPerStrip (IlUInt rowsperstrip)
	Sets the number of rows per strip used when saving. More...

void	setTileHeight (IlUInt tileheight)
	Sets the tile height used when saving. More...

void	setTileWidth (IlUInt tilewidth)
	Sets the tile width used when saving. More...

void	setWriteMode (Mode mode)
	Sets the write mode. More...

IlBoolean	write (IlvBitmapData *data, ILVSTDPREF ostream &stream)
	Writes an `IlvBitmapData` to a TIFF stream. More...

virtual void	writeCustomData (IlAny identifier)
	Allows custom data to be written in the stream. More...

IlBoolean	writeTagValue (IlAny identifier, IlUInt tag, IlUInt count, IlAny value=0)
	Writes a tag in the stream. More...

Public Member Functions inherited from IlvBitmapStreamer
virtual void	callReadProgressCallback (IlUInt current, IlUInt max)
	Calls the callback for read progression. More...

virtual void	callWriteProgressCallback (IlUInt current, IlUInt max)
	Calls the callback for write progression. More...

virtual const char *	getName () const
	Returns the internal name of the streamer. More...

IlvQuantizer *	getQuantizer () const
	Returns the quantizer used by this streamer. More...

virtual IlvBitmapData *	read (std::istream &stream)
	Reads from a stream. More...

virtual IlvBitmap *	readBitmap (IlvDisplay *display, std::istream &stream)
	Reads IlvBitmap from a stream. More...

virtual IlvBitmapInformation *	readInfo (std::istream &stream)
	Reads information from a stream. More...

void	setQuantizer (IlvQuantizer *quantizer)
	Sets the quantizer used (if needed) by this streamer. More...

virtual void	setReadProgressCallback (IlvProgressCallback rpCallback, IlAny arg=0)
	Sets the callback for read progression. More...

virtual void	setWriteProgressCallback (IlvProgressCallback wpCallback, IlAny arg=0)
	Sets the callback for write progression. More...

virtual IlBoolean	write (IlvBitmapData *bitmapData, std::ostream &stream)
	Writes an `IlvBitmapData` to a stream. More...

Public Member Functions inherited from IlvValueInterface
virtual IlBoolean	applyValue (const IlvValue &value)
	Apply an accessor. More...

virtual IlBoolean	changeValue (const IlvValue &val)
	Changes the value of an accessor. More...

virtual IlBoolean	changeValues (const IlvValue *values, IlUShort count=0)
	Changes several accessor values simultaneously. More...

virtual void	getAccessors (const IlSymbol const names, const IlvValueTypeClass const **types, IlUInt &count) const
	Retrieves the list of available accessors of an object. More...

virtual IlvValue &	queryValue (IlvValue &val) const
	Retrieves an accessor value. More...

virtual void	queryValues (IlvValue *values, IlUShort count) const
	Retrieves multiple accessor values simultaneously. More...

Additional Inherited Members
Static Public Member Functions inherited from IlvBitmapStreamer
static IlvBitmapStreamer *	Get (const char *name)
	Returns a streamer from its name. More...

static IlvBitmapStreamer **	GetRegisteredStreamers (IlUInt &count)
	Returns the registered streamers. More...

static IlvBitmap *	Read (IlvDisplay display, std::istream &stream, const IlUChar signature, IlUInt signatureLen)
	Reads a bitmap using the registered streamers. More...

static IlvBitmapData *	ReadBitmapData (std::istream &stream, const IlUChar *signature, IlUInt signatureLen)
	Reads bitmap data using the registered streamers. More...

static IlvBitmapInformation *	ReadInfo (std::istream &stream, const IlUChar *signature, IlUInt signatureLen)
	Reads bitmap information using the registered streamers. More...

static void	Register (IlvBitmapStreamer *streamer)
	Registers the given streamer. More...

static IlBoolean	UnRegister (IlvBitmapStreamer *streamer)
	Unregisters the given streamer. More...

Detailed Description

Bitmap streamer class.

Library: ilvtiff

This streamer provides methods to deal with a stream containing a TIFF image. This streamer can read and write.

Member Function Documentation

◆ canRead()

IlBoolean IlvTIFFStreamer::canRead ( ) const

virtual

Indicates that the instance can read from a stream.

Returns: IlTrue.

Reimplemented from IlvBitmapStreamer.

◆ canWrite()

IlBoolean IlvTIFFStreamer::canWrite ( ) const

virtual

Indicates that the instance can write to a stream.

Returns: IlTrue.

Reimplemented from IlvBitmapStreamer.

◆ checkSignature()

IlBoolean IlvTIFFStreamer::checkSignature	(	const IlUChar *	data,
		IlUInt	size
	)

virtual

Indicates whether the instance can handle the stream.

Parameters

data	The stream signature.
size	The size of the stream signature.

Returns: IlTrue if the instance recognizes the signature.

Implements IlvBitmapStreamer.

◆ closeStream()

virtual void IlvTIFFStreamer::closeStream ( IlAny identifier )

virtual

Closes a stream.

Parameters

identifier The stream identifier.

◆ getCompression()

Compression IlvTIFFStreamer::getCompression ( ) const

Returns the compression mode.

Returns: The compression mode.

◆ getRowsPerStrip()

IlUInt IlvTIFFStreamer::getRowsPerStrip ( ) const

Returns The number of rows per strip used when saving.

Returns: The number of rows per strip.

◆ getTagValue()

IlBoolean IlvTIFFStreamer::getTagValue	(	IlAny	identifier,
		IlUInt	tag,
		IlUInt &	count,
		IlAny	value = `0`
	)

Returns the value of a given tag in a stream.

This method must be called between openStream and closeStream. The tag value must be known by the underlying TIFF library. Values must be copied.

Parameters

identifier	The stream identifier.
tag	The tag
count	The number of elements.
value	The tag value.

Returns: IlTrue if the tag is known and its value has been found.

◆ getTileHeight()

IlUInt IlvTIFFStreamer::getTileHeight ( ) const

Returns The tile height used when saving.

Returns: The tile height.

◆ getTileWidth()

IlUInt IlvTIFFStreamer::getTileWidth ( ) const

Returns the tile width used when saving.

Returns: The tile width.

◆ getWriteMode()

Mode IlvTIFFStreamer::getWriteMode ( ) const

Returns the write mode.

Returns: The write mode.

◆ openStream()

virtual IlAny IlvTIFFStreamer::openStream ( ILVSTDPREF istream & stream )

virtual

Opens the stream.

Parameters

stream The stream to open.

Returns: A stream identifier.

◆ read()

IlvBitmapData* IlvTIFFStreamer::read ( ILVSTDPREF istream & stream )

Reads a TIFF image from a stream.

Parameters

stream The stream to read from.

Returns: An instance of IlvBitmapData.

◆ readInfo()

IlvBitmapInformation* IlvTIFFStreamer::readInfo ( ILVSTDPREF istream & stream )

Reads image information from a stream.

Parameters

stream The stream to read from.

Returns: An instance of IlvBitmapInformation.

◆ readTile()

IlvBitmapData* IlvTIFFStreamer::readTile	(	ILVSTDPREF istream &	stream,
		IlUShort	x,
		IlUShort	y
	)

Reads a TIFF tile from a stream.

Parameters

stream	The stream to read from.
x	The horizontal position of the tile.
y	The vertical position of the tile.

Returns: An instance of IlvBitmapData.

◆ setCompression()

void IlvTIFFStreamer::setCompression ( Compression compression )

Sets the compression mode used when writing.

The compression can be one of IlvTIFFstreamer::None, IlvTIFFstreamer::Packbits, or IlvTIFFstreamer::Zip.

Parameters

compression The new compression mode.

◆ setRowsPerStrip()

void IlvTIFFStreamer::setRowsPerStrip ( IlUInt rowsperstrip )

Sets the number of rows per strip used when saving.

Parameters

rowsperstrip The new rows per strip value.

◆ setTileHeight()

void IlvTIFFStreamer::setTileHeight ( IlUInt tileheight )

Sets the tile height used when saving.

Parameters

tileheight The new tile height.

◆ setTileWidth()

void IlvTIFFStreamer::setTileWidth ( IlUInt tilewidth )

Sets the tile width used when saving.

Parameters

tilewidth The new tile width.

◆ setWriteMode()

void IlvTIFFStreamer::setWriteMode ( Mode mode )

Sets the write mode.

The mode can be either IlvTIFFStreamer::Tile or IlvTIFFStreamer::Strip.

Parameters

mode	The new write mode.

◆ write()

IlBoolean IlvTIFFStreamer::write	(	IlvBitmapData *	data,
		ILVSTDPREF ostream &	stream
	)

Writes an IlvBitmapData to a TIFF stream.

Parameters

data	The bitmap data to write.
stream	The stream to write to.

Returns: IlTrue if the bitmap data has been written.

◆ writeCustomData()

virtual void IlvTIFFStreamer::writeCustomData ( IlAny identifier )

virtual

Allows custom data to be written in the stream.

This method will be called by the write method.

Parameters

identifier The stream identifier.

◆ writeTagValue()

IlBoolean IlvTIFFStreamer::writeTagValue	(	IlAny	identifier,
		IlUInt	tag,
		IlUInt	count,
		IlAny	value = `0`
	)

Writes a tag in the stream.

Parameters

identifier	The stream identifier.
tag	The tag
count	the number of elements.
value	The tag value.

Returns: IlTrue if the tag is known and its value has been written.

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ canRead()

◆ canWrite()

◆ checkSignature()

◆ closeStream()

◆ getCompression()

◆ getRowsPerStrip()

◆ getTagValue()

◆ getTileHeight()

◆ getTileWidth()

◆ getWriteMode()

◆ openStream()

◆ read()

◆ readInfo()

◆ readTile()

◆ setCompression()

◆ setRowsPerStrip()

◆ setTileHeight()

◆ setTileWidth()

◆ setWriteMode()

◆ write()

◆ writeCustomData()

◆ writeTagValue()