org.web3d.vrml.export.compressors
Class FloatPacker

java.lang.Object
  org.web3d.vrml.export.compressors.FloatPacker

public class FloatPacker

extends java.lang.Object

Compresses float by using quanitization.

Version:

$Revision: 1.5 $

Author:

Alan Hudson

Constructor Summary

FloatPacker(int num_exponent_bits, int num_mantissa_bits)

Method Summary

float	decode(long src, boolean signed) Decodes a bit representation to a float value.
long	encode(float f, boolean rounding) Encode a float.

Methods inherited from class java.lang.Object

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

Constructor Detail

FloatPacker

public FloatPacker(int num_exponent_bits,
                   int num_mantissa_bits)

Method Detail

encode

public long encode(float f,
                   boolean rounding)

Encode a float. The return value is the bit reprenstation using the requested mantissa and exponent bits. Mask out the result and save the bits.

Parameters:

f - The float to encode

rounding - Whether to round the result. Gives better accuracy.

decode

public float decode(long src,
                    boolean signed)

Decodes a bit representation to a float value.

Parameters:

src - The source bits

Returns:

The float value