Class TGAImageReader

java.lang.Object

javax.imageio.ImageReader

com.twelvemonkeys.imageio.ImageReaderBase

com.twelvemonkeys.imageio.plugins.tga.TGAImageReader

final class TGAImageReader
extends ImageReaderBase

Field Summary

Fields

Modifier and Type	Field	Description
private TGAExtensions	extensions
private TGAHeader	header
private static final int	MAX_EXPANSION_RATIO	Maximum plausible decoded-to-input expansion ratio for TGA, used to bound the destination allocation against the input length.

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
TGAImageReader(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)
int	getHeight(int imageIndex)
IIOMetadata	getImageMetadata(int imageIndex)	Default implementation that always returns null.
Iterator<ImageTypeSpecifier>	getImageTypes(int imageIndex)
int	getNumThumbnails(int imageIndex)
ImageTypeSpecifier	getRawImageType(int imageIndex)
int	getThumbnailHeight(int imageIndex, int thumbnailIndex)
int	getThumbnailWidth(int imageIndex, int thumbnailIndex)
int	getWidth(int imageIndex)
boolean	hasThumbnails(int imageIndex)
private boolean	isOriginLowerLeft(int origin)
static void	main(String[] args)
BufferedImage	read(int imageIndex, ImageReadParam param)
boolean	readerSupportsThumbnails()
private static void	readFully(DataInput input, int[] ints)
private static void	readFully(DataInput input, short[] shorts)
private void	readHeader()
private void	readRowByte(DataInput input, int height, Rectangle srcRegion, boolean flip, int xSub, int ySub, byte[] rowDataByte, WritableRaster destChannel, Raster srcChannel, int y)
private void	readRowInt(DataInput input, int height, Rectangle srcRegion, boolean flip, int xSub, int ySub, int[] rowDataInt, WritableRaster destChannel, Raster srcChannel, int y)
private void	readRowUShort(DataInput input, int height, Rectangle srcRegion, boolean flip, int xSub, int ySub, short[] rowDataUShort, WritableRaster destChannel, Raster srcChannel, int y)
BufferedImage	readThumbnail(int imageIndex, int thumbnailIndex)
private void	removeAlpha32(byte[] rowData)
protected void	resetMembers()	Resets all member variables.
private static void	skipToEnd(ImageInputStream stream)

Methods inherited from class ImageReaderBase

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

Methods inherited from class ImageReader

abort, abortRequested, addIIOReadProgressListener, addIIOReadUpdateListener, addIIOReadWarningListener, canReadRaster, checkReadParamBandSettings, clearAbortRequest, computeRegions, getAspectRatio, getAvailableLocales, getDefaultReadParam, getFormatName, getImageMetadata, getInput, getLocale, getMinIndex, getOriginatingProvider, getSourceRegion, getStreamMetadata, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, 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, readRaster, 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

MAX_EXPANSION_RATIO

private static final int MAX_EXPANSION_RATIO

Maximum plausible decoded-to-input expansion ratio for TGA, used to bound the destination allocation against the input length. TGA is uncompressed or run-length encoded; 128:1 leaves margin above RLE's maximum (~64:1 for 8-bit pixels), so no valid image is rejected.

See Also:

• Constant Field Values

header

private TGAHeader header

extensions

private TGAExtensions extensions

Constructor Details

TGAImageReader

TGAImageReader(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

read

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

Specified by:

read in class ImageReader

Throws:

IOException

isOriginLowerLeft

private boolean isOriginLowerLeft(int origin)
                           throws IIOException

Throws:

IIOException

readRowByte

private void readRowByte(DataInput input,
 int height,
 Rectangle srcRegion,
 boolean flip,
 int xSub,
 int ySub,
 byte[] rowDataByte,
 WritableRaster destChannel,
 Raster srcChannel,
 int y)
                  throws IOException

Throws:

IOException

removeAlpha32

private void removeAlpha32(byte[] rowData)

readRowUShort

private void readRowUShort(DataInput input,
 int height,
 Rectangle srcRegion,
 boolean flip,
 int xSub,
 int ySub,
 short[] rowDataUShort,
 WritableRaster destChannel,
 Raster srcChannel,
 int y)
                    throws IOException

Throws:

IOException

readRowInt

private void readRowInt(DataInput input,
 int height,
 Rectangle srcRegion,
 boolean flip,
 int xSub,
 int ySub,
 int[] rowDataInt,
 WritableRaster destChannel,
 Raster srcChannel,
 int y)
                 throws IOException

Throws:

IOException

readFully

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

Throws:

IOException

readFully

private static void readFully(DataInput input,
 int[] ints)
                       throws IOException

Throws:

IOException

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

skipToEnd

private static void skipToEnd(ImageInputStream stream)
                       throws IOException

Throws:

IOException

readerSupportsThumbnails

public boolean readerSupportsThumbnails()

Overrides:

readerSupportsThumbnails in class ImageReader

hasThumbnails

public boolean hasThumbnails(int imageIndex)
                      throws IOException

Overrides:

hasThumbnails in class ImageReader

Throws:

IOException

getNumThumbnails

public int getNumThumbnails(int imageIndex)
                     throws IOException

Overrides:

getNumThumbnails in class ImageReader

Throws:

IOException

getThumbnailWidth

public int getThumbnailWidth(int imageIndex,
 int thumbnailIndex)
                      throws IOException

Overrides:

getThumbnailWidth in class ImageReader

Throws:

IOException

getThumbnailHeight

public int getThumbnailHeight(int imageIndex,
 int thumbnailIndex)
                       throws IOException

Overrides:

getThumbnailHeight in class ImageReader

Throws:

IOException

readThumbnail

public BufferedImage readThumbnail(int imageIndex,
 int thumbnailIndex)
                            throws IOException

Overrides:

readThumbnail in class ImageReader

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