Package com.adobe.fontengine.math

Class F16Dot16

java.lang.Object

com.adobe.fontengine.math.F16Dot16

public class F16Dot16
extends java.lang.Object

Constants and operations on fixed 16.16 numbers. The value v is represented by the int value 2^16 * v.

Field Summary

Fields

Modifier and Type	Field	Description
static int	ONE
static int	ONE_HALF
static int	ZERO

Constructor Summary

Constructors

Constructor	Description
F16Dot16()

Method Summary

Modifier and Type	Method	Description
static int	divide(int v1, int v2)	Divide a 16.16 by a 16.16, result is a 16.16.
static int	fromDouble(double v)	Convert a double to a 16.16.
static int	fromInt(int v)	Convert an int to a 16.16.
static int	multiply(int v1, int v2)	Multiply two 16.16, result is a 16.16.
static int	multiplyByF2Dot14(int v1, int v2)	Multiply a 16.16 by a 2.14, result is 16.16.
static int	multiplyDivide(int v1, int v2, int v3)	Multiply a 16.16 by a 16.16 and divive by a 16.16, result is a 16.16.
static int	round(int v)	Round a 16.16, half-up , result is a 16.16.
static int	square(int v)	Square of a 16.16, result is a 16.16.
static double	toDouble(int v)	Convert a 16.16 to a double.
static java.lang.String	toString(int v)	Convert a 16.16 to a decimal representation.
static int	truncate(int v)	Truncate the decimal part of a 16.16, result is a 16.16.

Methods inherited from class java.lang.Object

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

Field Detail

ZERO

public static final int ZERO

See Also:

Constant Field Values

ONE

public static final int ONE

See Also:

Constant Field Values

ONE_HALF

public static final int ONE_HALF

See Also:

Constant Field Values

Constructor Detail

F16Dot16

public F16Dot16()

Method Detail

truncate

public static int truncate(int v)

Truncate the decimal part of a 16.16, result is a 16.16.

multiply

public static int multiply(int v1,
                           int v2)

Multiply two 16.16, result is a 16.16.

square

public static int square(int v)

Square of a 16.16, result is a 16.16.

multiplyByF2Dot14

public static int multiplyByF2Dot14(int v1,
                                    int v2)

Multiply a 16.16 by a 2.14, result is 16.16.

multiplyDivide

public static int multiplyDivide(int v1,
                                 int v2,
                                 int v3)

Multiply a 16.16 by a 16.16 and divive by a 16.16, result is a 16.16.

divide

public static int divide(int v1,
                         int v2)

Divide a 16.16 by a 16.16, result is a 16.16.

round

public static int round(int v)

Round a 16.16, half-up , result is a 16.16.

toDouble

public static double toDouble(int v)

Convert a 16.16 to a double.

fromDouble

public static int fromDouble(double v)

Convert a double to a 16.16.

fromInt

public static int fromInt(int v)

Convert an int to a 16.16.

toString

public static java.lang.String toString(int v)

Convert a 16.16 to a decimal representation.