Class CalcThread

java.lang.Object
  |
  +--java.lang.Thread
        |
        +--CalcThread

All Implemented Interfaces:

java.lang.Runnable

public class CalcThread

extends java.lang.Thread

Programm: WaveThread
Copyright: 2002 Andreas Gohr, Frank Schubert, Milan Altenburg
License: GPL2 or higher

Info: Class CalcThread, calculates Raster, holds array of Rasters

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

CalcThread(MonoWave[] mw, java.awt.Color col)
CalcThread Constructor sets time, MonoWave and Color creates new RGB ColorModel

Method Summary

void	calc_java(int idx) calculates the next Raster, according to time _time
void	calc_native(int idx) calculates the next Raster, according to time _time but using a native function
void	calcArray(int[] returnvals, float[] wavevals, int x, int y, float t, boolean sinus_method, boolean use_pointers, boolean use_copy) declaration of native function for calculation of the raster
void	die() control thread from outside, supposed but never used
long	fak(int x)
java.lang.String	getOptions()
int	getQueueSize()
java.awt.image.WritableRaster	getRaster()
void	run() "main" of CalcThread calls synchronized calc to fill queue
void	setXY(int x, int y) sets new width and height starts Thread, creates suitable Raster resets queue values (length,first,last)
float	sinusApproximation(float akt)
void	switchCalcMethod() switches usage of either native c or java calculation
void	switchSinusCalcMethod() switches usage of either sinus or taylor approximation
void	switchUsageOfCopy() switches usage of line copy
void	switchUsageOfPointers() switches usage of pointers in native c function

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

CalcThread

public CalcThread(MonoWave[] mw,
                  java.awt.Color col)

CalcThread Constructor sets time, MonoWave and Color creates new RGB ColorModel

Method Detail

setXY

public void setXY(int x,
                  int y)

sets new width and height starts Thread, creates suitable Raster resets queue values (length,first,last)

getQueueSize

public int getQueueSize()

Returns:

size of queue

getRaster

public java.awt.image.WritableRaster getRaster()

Returns:

the Raster, that is next

die

public void die()

control thread from outside, supposed but never used

switchCalcMethod

public void switchCalcMethod()

switches usage of either native c or java calculation

switchSinusCalcMethod

public void switchSinusCalcMethod()

switches usage of either sinus or taylor approximation

switchUsageOfPointers

public void switchUsageOfPointers()

switches usage of pointers in native c function

switchUsageOfCopy

public void switchUsageOfCopy()

switches usage of line copy

getOptions

public java.lang.String getOptions()

Returns:

String with options currently set

fak

public long fak(int x)

Returns:

factorial

sinusApproximation

public float sinusApproximation(float akt)

Returns:

taylor approximation of sinus

calc_java

public void calc_java(int idx)

calculates the next Raster, according to time _time

calcArray

public void calcArray(int[] returnvals,
                      float[] wavevals,
                      int x,
                      int y,
                      float t,
                      boolean sinus_method,
                      boolean use_pointers,
                      boolean use_copy)

declaration of native function for calculation of the raster

calc_native

public void calc_native(int idx)

calculates the next Raster, according to time _time but using a native function

run

public void run()

"main" of CalcThread calls synchronized calc to fill queue

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread