Class TileCompressor

java.lang.Object

nom.tam.image.tile.operation.AbstractTileOperation

nom.tam.image.compression.tile.TileCompressionOperation

nom.tam.image.compression.tile.TileCompressor

All Implemented Interfaces:

Runnable, ITileOperation

public class TileCompressor
extends TileCompressionOperation

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	forceNoLoss
private NullPixelMaskPreserver	nullPixelMaskPerserver

Fields inherited from class TileCompressionOperation

compressedData, compressedOffset, compressionType, tileOptions

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	TileCompressor(TiledImageCompressionOperation array, int tileIndex, TileArea area)

Method Summary

Modifier and Type	Method	Description
private void	compactCompressedData()	lets close the gaps in the data as soon as the previous tiles are also compressed.
private void	compress()
protected NullPixelMaskPreserver	createImageNullPixelMask(ImageNullPixelMask imageNullPixelMask)
protected void	forceNoLoss(boolean value)	should the data of this tile be forced to case no data loss.
private void	replaceCompressedBufferWithTargetArea(ByteBuffer compressedWholeArea)
void	run()

Methods inherited from class TileCompressionOperation

getCompressedData, getCompressedWholeArea, getCompressionType, getCompressorControl, getGzipCompressorControl, initTileOptions, setCompressed, setCompressedOffset, setDimensions, setWholeImageCompressedBuffer, toString

Methods inherited from class AbstractTileOperation

execute, getArea, getBaseType, getPixelSize, getPreviousTileOperation, getTileBuffer, getTiledImageOperation, getTileIndex, setTileBuffer, setWholeImageBuffer, waitForResult

Methods inherited from class Object

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

Methods inherited from interface ITileOperation

waitForResult

Field Details

forceNoLoss

private boolean forceNoLoss

nullPixelMaskPerserver

private NullPixelMaskPreserver nullPixelMaskPerserver

Constructor Details

TileCompressor

protected TileCompressor(TiledImageCompressionOperation array,
 int tileIndex,
 TileArea area)

Method Details

run

public void run()

compactCompressedData

private void compactCompressedData()

lets close the gaps in the data as soon as the previous tiles are also compressed. the compressed data of the first tile is used to append the complete block.

compress

private void compress()

replaceCompressedBufferWithTargetArea

private void replaceCompressedBufferWithTargetArea(ByteBuffer compressedWholeArea)

createImageNullPixelMask

protected NullPixelMaskPreserver createImageNullPixelMask(ImageNullPixelMask imageNullPixelMask)

Specified by:

createImageNullPixelMask in class TileCompressionOperation

forceNoLoss

protected void forceNoLoss(boolean value)

Description copied from class: TileCompressionOperation

should the data of this tile be forced to case no data loss. This information is not relevant in all cases that it is ignored by default.

Overrides:

forceNoLoss in class TileCompressionOperation

Parameters:

value - the value to set.