Package org.lwjgl.stb

Class STBDXT

java.lang.Object

org.lwjgl.stb.STBDXT

public class STBDXT
extends java.lang.Object

Native bindings to stb_dxt.h from the stb library.

DXT1/DXT5 compressor.

Field Summary

Fields

Modifier and Type	Field and Description
static int	STB_DXT_DITHER Use dithering.
static int	STB_DXT_HIGHQUAL High quality mode, does two refinement steps instead of 1.
static int	STB_DXT_NORMAL

Method Summary

Modifier and Type	Method and Description
static void	stb_compress_dxt_block(java.nio.ByteBuffer dest, java.nio.ByteBuffer src, boolean alpha, int mode) Call this function for every block (you must pad).

Methods inherited from class java.lang.Object

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

Field Detail

STB_DXT_NORMAL

public static final int STB_DXT_NORMAL

See Also:

Constant Field Values

STB_DXT_DITHER

public static final int STB_DXT_DITHER

Use dithering. Dubious win, never use for normal maps and the like!

See Also:

Constant Field Values

STB_DXT_HIGHQUAL

public static final int STB_DXT_HIGHQUAL

High quality mode, does two refinement steps instead of 1. ~30-40% slower.

See Also:

Constant Field Values

Method Detail

stb_compress_dxt_block

public static void stb_compress_dxt_block(java.nio.ByteBuffer dest,
                                          java.nio.ByteBuffer src,
                                          boolean alpha,
                                          int mode)

Call this function for every block (you must pad). The source should be a 4x4 block of RGBA data in row-major order; A is ignored if you specify alpha=0; you can turn on dithering and "high quality" using mode.

Parameters:

dest - a buffer in which to store the compressed block

src - the block to compress

alpha - 1 to compress the alpha channel, 0 to ignore it

mode - the compression mode. One of:

DXT_NORMAL

DXT_DITHER

DXT_HIGHQUAL