de.onyxbits.giftedmotion

Class PatchedGIFImageReader

java.lang.Object

javax.imageio.ImageReader

de.onyxbits.giftedmotion.PatchedGIFImageReader

public class PatchedGIFImageReader
extends ImageReader

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	bitPos
(package private) byte[]	block
(package private) int	blockLength
(package private) int	clearCode
(package private) int	currIndex
(package private) boolean	decodeThisRow
(package private) Point	destinationOffset
(package private) Rectangle	destinationRegion
(package private) int	destY
(package private) int	eofCode
(package private) boolean	gotHeader
(package private) int	height
(package private) com.sun.imageio.plugins.gif.GIFImageMetadata	imageMetadata
(package private) int	imageMetadataLength
(package private) List	imageStartPosition
(package private) int	initCodeSize
(package private) static int[]	interlaceIncrement
(package private) static int[]	interlaceOffset
(package private) int	interlacePass
(package private) boolean	lastBlockFound
(package private) int	next32Bits
(package private) int	nextByte
(package private) int	numImages
(package private) byte[]	rowBuf
(package private) int	rowsDone
(package private) int	sourceMaxProgressivePass
(package private) int	sourceMinProgressivePass
(package private) Rectangle	sourceRegion
(package private) int	sourceXSubsampling
(package private) int	sourceYSubsampling
(package private) ImageInputStream	stream
(package private) com.sun.imageio.plugins.gif.GIFStreamMetadata	streamMetadata
(package private) int	streamX
(package private) int	streamY
(package private) BufferedImage	theImage
(package private) WritableRaster	theTile
(package private) int	updateMinY
(package private) int	updateYStep
(package private) int	width

Fields inherited from class javax.imageio.ImageReader

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

Constructor Summary

Constructors

Constructor and Description
PatchedGIFImageReader(ImageReaderSpi originatingProvider)

Method Summary

Modifier and Type	Method and Description
private void	checkIndex(int imageIndex)
private void	computeDecodeThisRow()
private byte[]	concatenateBlocks()
private int	copyData(byte[] src, int offset, byte[] dst)
private int	getCode(int codeSize, int codeMask)
ImageReadParam	getDefaultReadParam()
int	getHeight(int imageIndex)
IIOMetadata	getImageMetadata(int imageIndex)
Iterator	getImageTypes(int imageIndex)
int	getNumImages(boolean allowSearch)
IIOMetadata	getStreamMetadata()
int	getWidth(int imageIndex)
void	initializeStringTable(int[] prefix, byte[] suffix, byte[] initial, int[] length)
private void	initNext32Bits()
private int	locateImage(int imageIndex)
private void	outputPixels(byte[] string, int len)
private void	outputRow()
BufferedImage	read(int imageIndex, ImageReadParam param)
private void	readHeader()
private void	readMetadata()
void	reset() Remove all settings including global settings such as Locales and listeners, as well as stream settings.
private void	resetStreamSettings() Remove local settings based on parsing of a stream.
void	setInput(Object input, boolean seekForwardOnly, boolean ignoreMetadata)
private boolean	skipImage()
private void	startPass(int pass)

Methods inherited from class javax.imageio.ImageReader

abort, abortRequested, addIIOReadProgressListener, addIIOReadUpdateListener, addIIOReadWarningListener, canReadRaster, checkReadParamBandSettings, clearAbortRequest, computeRegions, dispose, getAspectRatio, getAvailableLocales, getDestination, getFormatName, getImageMetadata, getInput, getLocale, getMinIndex, getNumThumbnails, getOriginatingProvider, getRawImageType, 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 java.lang.Object

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

Field Detail

stream

ImageInputStream stream

gotHeader

boolean gotHeader

streamMetadata

com.sun.imageio.plugins.gif.GIFStreamMetadata streamMetadata

currIndex

int currIndex

imageMetadata

com.sun.imageio.plugins.gif.GIFImageMetadata imageMetadata

imageStartPosition

List imageStartPosition

imageMetadataLength

int imageMetadataLength

numImages

int numImages

block

byte[] block

blockLength

int blockLength

bitPos

int bitPos

nextByte

int nextByte

initCodeSize

int initCodeSize

clearCode

int clearCode

eofCode

int eofCode

next32Bits

int next32Bits

lastBlockFound

boolean lastBlockFound

theImage

BufferedImage theImage

theTile

WritableRaster theTile

width

int width

height

int height

streamX

int streamX

streamY

int streamY

rowsDone

int rowsDone

interlacePass

int interlacePass

interlaceIncrement

static final int[] interlaceIncrement

interlaceOffset

static final int[] interlaceOffset

sourceRegion

Rectangle sourceRegion

sourceXSubsampling

int sourceXSubsampling

sourceYSubsampling

int sourceYSubsampling

sourceMinProgressivePass

int sourceMinProgressivePass

sourceMaxProgressivePass

int sourceMaxProgressivePass

destinationOffset

Point destinationOffset

destinationRegion

Rectangle destinationRegion

updateMinY

int updateMinY

updateYStep

int updateYStep

decodeThisRow

boolean decodeThisRow

destY

int destY

rowBuf

byte[] rowBuf

Constructor Detail

PatchedGIFImageReader

public PatchedGIFImageReader(ImageReaderSpi originatingProvider)

Method Detail

setInput

public void setInput(Object input,
                     boolean seekForwardOnly,
                     boolean ignoreMetadata)

Overrides:

setInput in class ImageReader

getNumImages

public int getNumImages(boolean allowSearch)
                 throws IIOException

Specified by:

getNumImages in class ImageReader

Throws:

IIOException

checkIndex

private void checkIndex(int imageIndex)

getWidth

public int getWidth(int imageIndex)
             throws IIOException

Specified by:

getWidth in class ImageReader

Throws:

IIOException

getHeight

public int getHeight(int imageIndex)
              throws IIOException

Specified by:

getHeight in class ImageReader

Throws:

IIOException

getImageTypes

public Iterator getImageTypes(int imageIndex)
                       throws IIOException

Specified by:

getImageTypes in class ImageReader

Throws:

IIOException

getDefaultReadParam

public ImageReadParam getDefaultReadParam()

Overrides:

getDefaultReadParam in class ImageReader

getStreamMetadata

public IIOMetadata getStreamMetadata()
                              throws IIOException

Specified by:

getStreamMetadata in class ImageReader

Throws:

IIOException

getImageMetadata

public IIOMetadata getImageMetadata(int imageIndex)
                             throws IIOException

Specified by:

getImageMetadata in class ImageReader

Throws:

IIOException

initNext32Bits

private void initNext32Bits()

getCode

private int getCode(int codeSize,
                    int codeMask)
             throws IOException

Throws:

IOException

initializeStringTable

public void initializeStringTable(int[] prefix,
                                  byte[] suffix,
                                  byte[] initial,
                                  int[] length)

outputRow

private void outputRow()

computeDecodeThisRow

private void computeDecodeThisRow()

outputPixels

private void outputPixels(byte[] string,
                          int len)

readHeader

private void readHeader()
                 throws IIOException

Throws:

IIOException

skipImage

private boolean skipImage()
                   throws IIOException

Throws:

IIOException

locateImage

private int locateImage(int imageIndex)
                 throws IIOException

Throws:

IIOException

concatenateBlocks

private byte[] concatenateBlocks()
                          throws IOException

Throws:

IOException

readMetadata

private void readMetadata()
                   throws IIOException

Throws:

IIOException

copyData

private int copyData(byte[] src,
                     int offset,
                     byte[] dst)

startPass

private void startPass(int pass)

read

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

Specified by:

read in class ImageReader

Throws:

IIOException

reset

public void reset()

Remove all settings including global settings such as Locales and listeners, as well as stream settings.

Overrides:

reset in class ImageReader

resetStreamSettings

private void resetStreamSettings()

Remove local settings based on parsing of a stream.