Class DDSImageDataEncoder

java.lang.Object

com.twelvemonkeys.imageio.plugins.dds.DDSImageDataEncoder

class DDSImageDataEncoder
extends Object

A designated class to encode image data to binary.

See Also:

• GPU DXT Decompression.
• TEXTURE COMPRESSION TECHNIQUES.
• Real-Time DXT Compression by J.M.P. van Waveren
• Khronos Data Format Specification v1.4 by Andrew Garrard

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	DDSImageDataEncoder.BlockCompressor1
private static final class	DDSImageDataEncoder.BlockCompressor2
private static final class	DDSImageDataEncoder.BlockCompressor3
private static final class	DDSImageDataEncoder.BlockCompressor4
private static final class	DDSImageDataEncoder.BlockCompressor5
private static class	DDSImageDataEncoder.BlockCompressorBase
private static final class	DDSImageDataEncoder.MutableColor

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	BC1_ALPHA_CAP
private static final int	BC4_CHANNEL_ALPHA
private static final int	BC4_CHANNEL_GREEN
private static final int	BC4_CHANNEL_RED

Constructor Summary

Constructors

Modifier	Constructor	Description
private	DDSImageDataEncoder()

Method Summary

Modifier and Type	Method	Description
private static int	color565ToInt(int r5, int g6, int b5)
(package private) static int	convertTo565(int r8, int g8, int b8)
(package private) static void	writeImageData(ImageOutputStream imageOutput, Raster raster, BlockCompression compression)

Methods inherited from class Object

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

Field Details

BC1_ALPHA_CAP

private static final int BC1_ALPHA_CAP

See Also:

• Constant Field Values

BC4_CHANNEL_RED

private static final int BC4_CHANNEL_RED

See Also:

• Constant Field Values

BC4_CHANNEL_ALPHA

private static final int BC4_CHANNEL_ALPHA

See Also:

• Constant Field Values

BC4_CHANNEL_GREEN

private static final int BC4_CHANNEL_GREEN

See Also:

• Constant Field Values

Constructor Details

DDSImageDataEncoder

private DDSImageDataEncoder()

Method Details

writeImageData

static void writeImageData(ImageOutputStream imageOutput,
 Raster raster,
 BlockCompression compression)
                    throws IOException

Throws:

IOException

convertTo565

static int convertTo565(int r8,
 int g8,
 int b8)

color565ToInt

private static int color565ToInt(int r5,
 int g6,
 int b5)