Class SGIImageReader

java.lang.Object

javax.imageio.ImageReader

com.twelvemonkeys.imageio.ImageReaderBase

com.twelvemonkeys.imageio.plugins.sgi.SGIImageReader

public final class SGIImageReader
extends ImageReaderBase

Field Summary

Fields

Modifier and Type	Field	Description
private SGIHeader	header

Fields inherited from class ImageReaderBase

imageInput

Fields inherited from class ImageReader

availableLocales, ignoreMetadata, input, locale, minIndex, originatingProvider, progressListeners, seekForwardOnly, updateListeners, warningListeners, warningLocales

Constructor Summary

Constructors

Constructor	Description
SGIImageReader(ImageReaderSpi provider)

Method Summary

Modifier and Type	Method	Description
private Raster	clipRowToRect(Raster raster, Rectangle rect, int[] bands, int xSub)
private WritableRaster	clipToRect(WritableRaster raster, Rectangle rect, int[] bands)
private int[]	createIndices(int bands, int increment)
int	getHeight(int imageIndex)
IIOMetadata	getImageMetadata(int imageIndex)	Default implementation that always returns null.
Iterator<ImageTypeSpecifier>	getImageTypes(int imageIndex)
ImageTypeSpecifier	getRawImageType(int imageIndex)
int	getWidth(int imageIndex)
static void	main(String[] args)
private void	normalize(byte[] rowData, int start, int length)
private void	normalize(short[] rowData, int start, int length)
BufferedImage	read(int imageIndex, ImageReadParam param)
private static void	readFully(DataInput input, short[] shorts)
private void	readHeader()
private void	readRowByte(int height, Rectangle srcRegion, int[] scanlineOffsets, int[] scanlineLengths, int compression, int xSub, int ySub, int c, byte[] rowDataByte, WritableRaster destChannel, Raster srcChannel, int y)
private void	readRowUShort(int height, Rectangle srcRegion, int[] scanlineOffsets, int[] scanlineLengths, int compression, int xSub, int ySub, int c, short[] rowDataUShort, WritableRaster destChannel, Raster srcChannel, int y)
protected void	resetMembers()	Resets all member variables.

Methods inherited from class ImageReaderBase

assertInput, checkBounds, dispose, fakeAOI, fakeSubsampling, getDestination, getNumImages, getStreamMetadata, hasExplicitDestination, reset, setInput, showIt

Methods inherited from class ImageReader

abort, abortRequested, addIIOReadProgressListener, addIIOReadUpdateListener, addIIOReadWarningListener, canReadRaster, checkReadParamBandSettings, clearAbortRequest, computeRegions, getAspectRatio, getAvailableLocales, getDefaultReadParam, getFormatName, getImageMetadata, getInput, getLocale, getMinIndex, getNumThumbnails, getOriginatingProvider, getSourceRegion, getStreamMetadata, getThumbnailHeight, getThumbnailWidth, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, hasThumbnails, isIgnoringMetadata, isImageTiled, isRandomAccessEasy, isSeekForwardOnly, processImageComplete, processImageProgress, processImageStarted, processImageUpdate, processPassComplete, processPassStarted, processReadAborted, processSequenceComplete, processSequenceStarted, processThumbnailComplete, processThumbnailPassComplete, processThumbnailPassStarted, processThumbnailProgress, processThumbnailStarted, processThumbnailUpdate, processWarningOccurred, processWarningOccurred, read, readAll, readAll, readAsRenderedImage, readerSupportsThumbnails, readRaster, readThumbnail, readTile, readTileRaster, removeAllIIOReadProgressListeners, removeAllIIOReadUpdateListeners, removeAllIIOReadWarningListeners, removeIIOReadProgressListener, removeIIOReadUpdateListener, removeIIOReadWarningListener, setInput, setInput, setLocale

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

header

private SGIHeader header

Constructor Details

SGIImageReader

SGIImageReader(ImageReaderSpi provider)

Method Details

resetMembers

protected void resetMembers()

Description copied from class: ImageReaderBase

Resets all member variables. This method is by default invoked from:

• ImageReaderBase.setInput(Object, boolean, boolean)
• ImageReaderBase.dispose()
• ImageReaderBase.reset()

Specified by:

resetMembers in class ImageReaderBase

getWidth

public int getWidth(int imageIndex)
             throws IOException

Specified by:

getWidth in class ImageReader

Throws:

IOException

getHeight

public int getHeight(int imageIndex)
              throws IOException

Specified by:

getHeight in class ImageReader

Throws:

IOException

getImageTypes

public Iterator<ImageTypeSpecifier> getImageTypes(int imageIndex)
                                           throws IOException

Specified by:

getImageTypes in class ImageReader

Throws:

IOException

getRawImageType

public ImageTypeSpecifier getRawImageType(int imageIndex)
                                   throws IOException

Overrides:

getRawImageType in class ImageReader

Throws:

IOException

createIndices

private int[] createIndices(int bands,
 int increment)

read

public BufferedImage read(int imageIndex,
 ImageReadParam param)
                   throws IOException

Specified by:

read in class ImageReader

Throws:

IOException

readRowByte

private void readRowByte(int height,
 Rectangle srcRegion,
 int[] scanlineOffsets,
 int[] scanlineLengths,
 int compression,
 int xSub,
 int ySub,
 int c,
 byte[] rowDataByte,
 WritableRaster destChannel,
 Raster srcChannel,
 int y)
                  throws IOException

Throws:

IOException

readRowUShort

private void readRowUShort(int height,
 Rectangle srcRegion,
 int[] scanlineOffsets,
 int[] scanlineLengths,
 int compression,
 int xSub,
 int ySub,
 int c,
 short[] rowDataUShort,
 WritableRaster destChannel,
 Raster srcChannel,
 int y)
                    throws IOException

Throws:

IOException

readFully

private static void readFully(DataInput input,
 short[] shorts)
                       throws IOException

Throws:

IOException

normalize

private void normalize(byte[] rowData,
 int start,
 int length)

normalize

private void normalize(short[] rowData,
 int start,
 int length)

clipRowToRect

private Raster clipRowToRect(Raster raster,
 Rectangle rect,
 int[] bands,
 int xSub)

clipToRect

private WritableRaster clipToRect(WritableRaster raster,
 Rectangle rect,
 int[] bands)

readHeader

private void readHeader()
                 throws IOException

Throws:

IOException

getImageMetadata

public IIOMetadata getImageMetadata(int imageIndex)
                             throws IOException

Description copied from class: ImageReaderBase

Default implementation that always returns null.

Overrides:

getImageMetadata in class ImageReaderBase

Parameters:

imageIndex - ignored, unless overridden

Returns:

null, unless overridden

Throws:

IOException - never, unless overridden.

main

public static void main(String[] args)
                 throws IOException

Throws:

IOException