com.jogamp.opengl.math
Class Binary32

java.lang.Object
  com.jogamp.opengl.math.Binary32

public final class Binary32
extends Object

Functions for interrogating binary32 (float) values.

Constructor Summary

Binary32()

Method Summary

static int	unpackGetExponentUnbiased(float d) Extract and unbias the exponent of the given packed float value.
static int	unpackGetSign(float d) Return the sign of the given float value.
static int	unpackGetSignificand(float d) Return the significand of the given float value.

Methods inherited from class java.lang.Object

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

Constructor Detail

Binary32

public Binary32()

Method Detail

unpackGetExponentUnbiased

public static int unpackGetExponentUnbiased(float d)

Extract and unbias the exponent of the given packed float value.

The exponent is encoded biased as a number in the range [0, 255], with 0 indicating that the number is subnormal and [1, 254] denoting the actual exponent plus BIAS. Infinite and NaN values always have a biased exponent of 255.

This function will therefore return:

• 0 - BIAS = -127 iff the input is a subnormal number.
• An integer in the range [1 - BIAS, 254 - BIAS] = [-126, 127] iff the input is a normal number.
• 255 - BIAS = 128 iff the input is #POSITIVE_INFINITY, #NEGATIVE_INFINITY, or NaN.

See Also:

#packSetExponentUnbiasedUnchecked(int)

unpackGetSign

public static int unpackGetSign(float d)

Return the sign of the given float value.

unpackGetSignificand

public static int unpackGetSignificand(float d)

Return the significand of the given float value.