com.aparapi.examples.afmandelbrot

Class AfAparapiUtils

java.lang.Object

com.aparapi.examples.afmandelbrot.AfAparapiUtils

public class AfAparapiUtils
extends Object

Aparapi Fractals Aparapi code is here and in the kernel. The constructor prepares a map of Aparapi Devices using a String as a key. The strings used as keys are created combining device shortDescription and deviceId. That's for convenience, to show the keys on the gui combo box and use them to retrieve the selected device and kernel from the maps.

Since:

2.0.1

Version:

$Id: $Id

Author:

marco.stefanetti at gmail.com

Constructor Summary

Constructors

Constructor and Description
AfAparapiUtils() The constructor prepares the keys, the map containing the devices and a map with a kernel instance for each device.

Method Summary

Modifier and Type	Method and Description
long	execute(double cx1, double cy1, double cx2, double cy2, int w, int h, int maxIterations) call the kernel execution and track elapsed time
String	getBestDeviceKey() Getter for the field bestDeviceKey.
com.aparapi.device.Device	getDevice() Getter for the field device.
String[]	getDeviceKeys() Getter for the field deviceKeys.
String	getDeviceName() Getter for the field deviceName.
AfKernel	getKernel() Getter for the field kernel.
String	getLocalSizes() getLocalSizes.
com.aparapi.Range	getRange() Getter for the field range.
int[][]	getResult() getResult.
void	init(String deviceKey, int W, int H) calls the init with a default localSize.
void	init(String deviceKey, int W, int H, int localSize0, int localSize1) Prepares the range and reads device description, based on the device and image size the range can be reused many times, so we need to instantiate the range only when device changes or image size changes

Methods inherited from class java.lang.Object

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

Constructor Detail

AfAparapiUtils

public AfAparapiUtils()

The constructor prepares the keys, the map containing the devices and a map with a kernel instance for each device.

Method Detail

init

public void init(String deviceKey,
                 int W,
                 int H)

calls the init with a default localSize.

Parameters:

deviceKey - a String object.

W - a int.

H - a int.

init

public void init(String deviceKey,
                 int W,
                 int H,
                 int localSize0,
                 int localSize1)

Prepares the range and reads device description, based on the device and image size the range can be reused many times, so we need to instantiate the range only when device changes or image size changes

Parameters:

deviceKey - a String object.

W - a int.

H - a int.

localSize0 - a int.

localSize1 - a int.

execute

public long execute(double cx1,
                    double cy1,
                    double cx2,
                    double cy2,
                    int w,
                    int h,
                    int maxIterations)

call the kernel execution and track elapsed time

Parameters:

cx1 - a double.

cy1 - a double.

cx2 - a double.

cy2 - a double.

w - a int.

h - a int.

maxIterations - a int.

Returns:

elapsed milliseconds

getDeviceKeys

public String[] getDeviceKeys()

Getter for the field deviceKeys.

Returns:

an array of String objects.

getDeviceName

public String getDeviceName()

Getter for the field deviceName.

Returns:

a String object.

getLocalSizes

public String getLocalSizes()

getLocalSizes.

Returns:

a String object.

getBestDeviceKey

public String getBestDeviceKey()

Getter for the field bestDeviceKey.

Returns:

the key of the best device by KernelManager

getDevice

public com.aparapi.device.Device getDevice()

Getter for the field device.

Returns:

last device selected

getKernel

public AfKernel getKernel()

Getter for the field kernel.

Returns:

the kernel of the selected device

getRange

public com.aparapi.Range getRange()

Getter for the field range.

Returns:

the range

getResult

public int[][] getResult()

getResult.

Returns:

an array of int objects.