JOGL 2.3.2 · com.jogamp.opengl.math.Binary32

public final Class Binary32

extends Object

Class Inheritance

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

Functions for interrogating binary32 (float) values.

Field Summary

Modifier and Type	Field and Description
pack-priv static final int	BIAS
pack-priv static final int	MASK_EXPONENT
pack-priv static final int	MASK_SIGN
pack-priv static final int	MASK_SIGNIFICAND
pack-priv static final int	NEGATIVE_ZERO_BITS

Constructor Summary

Access	Constructor and Description
public	Binary32()

Method Summary

Modifier and Type	Method and Description
public static int	unpackGetExponentUnbiased(final float d) Extract and unbias the exponent of the given packed `float` value.
public static int	unpackGetSign(final float d) Return the sign of the given float value.
public static int	unpackGetSignificand(final float d) Return the significand of the given float value.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

BIAS	back to summary
pack-priv static final int BIAS

MASK_EXPONENT	back to summary
pack-priv static final int MASK_EXPONENT

MASK_SIGN	back to summary
pack-priv static final int MASK_SIGN

MASK_SIGNIFICAND	back to summary
pack-priv static final int MASK_SIGNIFICAND

NEGATIVE_ZERO_BITS	back to summary
pack-priv static final int NEGATIVE_ZERO_BITS

Constructor Detail

Binary32	back to summary
public Binary32()

Method Detail

unpackGetExponentUnbiased back to summary

unpackGetExponentUnbiased	back to summary
public static int unpackGetExponentUnbiased(final 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)`

public static int unpackGetExponentUnbiased(final 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	back to summary
public static int unpackGetSign(final float d) Return the sign of the given float value.

unpackGetSignificand	back to summary
public static int unpackGetSignificand(final float d) Return the significand of the given float value.