Package com.twelvemonkeys.imageio.plugins.dds

Class DDSImageDataEncoder.BlockCompressor4

java.lang.Object

com.twelvemonkeys.imageio.plugins.dds.DDSImageDataEncoder.BlockCompressorBase

com.twelvemonkeys.imageio.plugins.dds.DDSImageDataEncoder.BlockCompressor4

Enclosing class:

DDSImageDataEncoder

private static final class DDSImageDataEncoder.BlockCompressor4
extends DDSImageDataEncoder.BlockCompressorBase

Field Summary

Fields

Modifier and Type	Field	Description
private int	channelIndex
private int[]	reds

Fields inherited from class com.twelvemonkeys.imageio.plugins.dds.DDSImageDataEncoder.BlockCompressorBase

samples

Constructor Summary

Constructors

Modifier	Constructor	Description
private	BlockCompressor4(int channelIndex)

Method Summary

Modifier and Type	Method	Description
private long	calculateIndices(int[] samples, int[] reds)
private void	getColorRange(int[] samples, int[] red01)
private int	getNearest(int r, int[] reds)
private void	interpolate(int[] reds)
(package private) void	startEncodeBlock(javax.imageio.stream.ImageOutputStream imageOutput, int[] samples)

Methods inherited from class com.twelvemonkeys.imageio.plugins.dds.DDSImageDataEncoder.BlockCompressorBase

encode, isAlphaBelowCap

Methods inherited from class java.lang.Object

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

Field Detail

channelIndex

private final int channelIndex

reds

private final int[] reds

Constructor Detail

BlockCompressor4

private BlockCompressor4(int channelIndex)

Method Detail

startEncodeBlock

void startEncodeBlock(javax.imageio.stream.ImageOutputStream imageOutput,
                      int[] samples)
               throws java.io.IOException

Specified by:

startEncodeBlock in class DDSImageDataEncoder.BlockCompressorBase

Throws:

java.io.IOException

calculateIndices

private long calculateIndices(int[] samples,
                              int[] reds)

getNearest

private int getNearest(int r,
                       int[] reds)

interpolate

private void interpolate(int[] reds)

getColorRange

private void getColorRange(int[] samples,
                           int[] red01)