org.shared.fft

Class ModalFftService

java.lang.Object

org.shared.fft.ModalFftService

All Implemented Interfaces:

FftService, Service

public class ModalFftService
extends Object
implements FftService

An FftService backed by a service provider as well as a pure Java implementation.

Constructor Summary

Constructors

Constructor and Description
ModalFftService() Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	fft(int[] dims, double[] in, double[] out) Computes a forward transform.
String	getHint(String name) Gets the value of the given hint.
void	ifft(int[] dims, double[] in, double[] out) Computes a backward transform.
void	rfft(int[] dims, double[] in, double[] out) Computes a reduced forward transform.
void	rifft(int[] dims, double[] in, double[] out) Computes a reduced backward transform.
void	setHint(String name, String value) Sets the value of the given hint.
void	useJava() Uses JavaFftService.
boolean	useRegisteredService() Attempts to use the FftService obtained from Services.createService(Class).

Methods inherited from class java.lang.Object

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

Constructor Detail

ModalFftService

public ModalFftService()

Default constructor. Tries to obtain a service provider. Failing that, falls back to JavaFftService.

Method Detail

useRegisteredService

public boolean useRegisteredService()

Attempts to use the FftService obtained from Services.createService(Class).

Returns:

true if and only if an implementation could be obtained without resorting to the default service.

useJava

public void useJava()

Uses JavaFftService.

rfft

public void rfft(int[] dims,
        double[] in,
        double[] out)

Description copied from interface: FftService

Computes a reduced forward transform.

Specified by:

rfft in interface FftService

Parameters:

dims - the dimensions of the transform.

in - the input array.

out - the output array.

rifft

public void rifft(int[] dims,
         double[] in,
         double[] out)

Description copied from interface: FftService

Computes a reduced backward transform.

Specified by:

rifft in interface FftService

Parameters:

dims - the dimensions of the transform.

in - the input array.

out - the output array.

fft

public void fft(int[] dims,
       double[] in,
       double[] out)

Description copied from interface: FftService

Computes a forward transform.

Specified by:

fft in interface FftService

Parameters:

dims - the dimensions of the transform.

in - the input array.

out - the output array.

ifft

public void ifft(int[] dims,
        double[] in,
        double[] out)

Description copied from interface: FftService

Computes a backward transform.

Specified by:

ifft in interface FftService

Parameters:

dims - the dimensions of the transform.

in - the input array.

out - the output array.

setHint

public void setHint(String name,
           String value)

Description copied from interface: FftService

Sets the value of the given hint.

Specified by:

setHint in interface FftService

Parameters:

name - the hint name.

value - the value.

getHint

public String getHint(String name)

Description copied from interface: FftService

Gets the value of the given hint.

Specified by:

getHint in interface FftService

Parameters:

name - the hint name.

Returns:

the hint value.