paulscode.sound.libraries
Class LibraryJOAL

java.lang.Object
  paulscode.sound.Library
      paulscode.sound.libraries.LibraryJOAL

public class LibraryJOAL
extends Library

The LibraryJOAL class interfaces the JOAL binding of OpenAL.

This software is based on or using the JOAL Library available from http://joal.dev.java.net/

JOAL License:
Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
-Redistribution of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
-Redistribution in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of Sun Microsystems, Inc. or the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission.
This software is provided "AS IS," without a warranty of any kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
You acknowledge that this software is not designed or intended for use in the design, construction, operation or maintenance of any nuclear facility.


SoundSystem LibraryJOAL License:

You are free to use this library for any purpose, commercial or otherwise. You may modify this library or source code, and distribute it any way you like, provided the following conditions are met:
1) You must abide by the conditions of the aforementioned JOAL License.
2) You may not falsely claim to be the author of this library or any unmodified portion of it.
3) You may not copyright this library or a modified version of it and then sue me for copyright infringement.
4) If you modify the source code, you must clearly document the changes made before redistributing the modified source code, so other users know it is not the original code.
5) You are not required to give me credit for this library in any derived work, but if you do, you must also mention my website: http://www.paulscode.com
6) I the author will not be responsible for any damages (physical, financial, or otherwise) caused by the use if this library or any part of it.
7) I the author do not guarantee, warrant, or make any representations, either expressed or implied, regarding the use of this library or any part of it.

Author: Paul Lamb
http://www.paulscode.com

Nested Class Summary

static class

LibraryJOAL.Exception The LibraryJOAL.Exception class provides library-specific error information.

Field Summary

Fields inherited from class paulscode.sound.Library

bufferMap, listener, normalChannels, reverseByteOrder, sourceMap, streamingChannels, streamThread

Constructor Summary

LibraryJOAL()
Constructor: Instantiates the source map, buffer map and listener information.

Method Summary

static boolean	alPitchSupported() Whether or not the AL_PITCH control is supported.
void	cleanup() Stops all sources, shuts down OpenAL, and removes references to all instantiated objects.
void	copySources(java.util.HashMap<java.lang.String,Source> srcMap) Creates sources based on the source map provided.
protected Channel	createChannel(int type) Creates a new channel of the specified type (normal or streaming).
void	dopplerChanged() The Doppler parameters have changed.
static net.java.games.joal.AL	getAL() Returns a handle to OpenAL, or null if OpenAL is not initialized.
java.lang.String	getClassName() Returns the name of the class.
static java.lang.String	getDescription() Returns a longer description of this library type.
static java.lang.String	getTitle() Returns the short title of this library type.
void	init() Initializes OpenAL, creates the listener, and grabs up audio channels.
static boolean	libraryCompatible() Checks if the OpenAL library type is compatible.
boolean	loadSound(FilenameURL filenameURL) Pre-loads a sound into memory.
boolean	loadSound(SoundBuffer buffer, java.lang.String identifier) Saves the specified sample data, under the specified identifier.
void	newSource(boolean priority, boolean toStream, boolean toLoop, java.lang.String sourcename, FilenameURL filenameURL, float x, float y, float z, int attModel, float distOrRoll) Creates a new source and places it into the source map.
void	quickPlay(boolean priority, boolean toStream, boolean toLoop, java.lang.String sourcename, FilenameURL filenameURL, float x, float y, float z, int attModel, float distOrRoll, boolean temporary) Creates and immediately plays a new source.
void	rawDataStream(javax.sound.sampled.AudioFormat audioFormat, boolean priority, java.lang.String sourcename, float x, float y, float z, int attModel, float distOrRoll) Opens a direct line for streaming audio data.
void	setListenerAngle(float angle) Changes the listeners orientation to the specified 'angle' radians counterclockwise around the y-Axis.
void	setListenerData(ListenerData l) Changes the listeners position and orientation using the specified listener data.
void	setListenerOrientation(float lookX, float lookY, float lookZ, float upX, float upY, float upZ) Changes the listeners orientation using the specified coordinates.
void	setListenerPosition(float x, float y, float z) Changes the listener's position.
void	setListenerVelocity(float x, float y, float z) Sets the listener's velocity, for use in Doppler effect.
void	setMasterVolume(float value) Sets the overall volume to the specified value, affecting all sources.
void	unloadSound(java.lang.String filename) Removes a pre-loaded sound from memory.

Methods inherited from class paulscode.sound.Library

activate, checkFadeVolumes, cull, dequeueSound, errorCheck, errorMessage, fadeOut, fadeOutIn, feedRawAudioData, feedRawAudioData, flush, getAllLoadedFilenames, getAllSourcenames, getListenerData, getMidiChannel, getPitch, getSource, getSources, getVolume, importantMessage, listenerMoved, loadMidi, message, midiSourcename, millisecondsPlayed, moveListener, pause, play, play, printStackTrace, queueSound, removeSource, removeTemporarySources, replaySources, reverseByteOrder, rewind, setAttenuation, setDistOrRoll, setLooping, setMidiChannel, setPitch, setPosition, setPriority, setTemporary, setVelocity, setVolume, stop, turnListener, unloadMidi

Methods inherited from class java.lang.Object

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

Constructor Detail

LibraryJOAL

public LibraryJOAL()
            throws SoundSystemException

Constructor: Instantiates the source map, buffer map and listener information. Also sets the library type to SoundSystemConfig.LIBRARY_OPENAL

Throws:

SoundSystemException

Method Detail

init

public void init()
          throws SoundSystemException

Initializes OpenAL, creates the listener, and grabs up audio channels.

Overrides:

init in class Library

Throws:

SoundSystemException

libraryCompatible

public static boolean libraryCompatible()

Checks if the OpenAL library type is compatible.

Returns:

True or false.

createChannel

protected Channel createChannel(int type)

Creates a new channel of the specified type (normal or streaming). Possible values for channel type can be found in the SoundSystemConfig class.

Overrides:

createChannel in class Library

Parameters:

type - Type of channel.

Returns:

The new channel.

cleanup

public void cleanup()

Stops all sources, shuts down OpenAL, and removes references to all instantiated objects.

Overrides:

cleanup in class Library

loadSound

public boolean loadSound(FilenameURL filenameURL)

Pre-loads a sound into memory.

Overrides:

loadSound in class Library

Parameters:

filenameURL - Filename/URL of the sound file to load.

Returns:

True if the sound loaded properly.

loadSound

public boolean loadSound(SoundBuffer buffer,
                         java.lang.String identifier)

Saves the specified sample data, under the specified identifier. This identifier can be later used in place of 'filename' parameters to reference the sample data.

Overrides:

loadSound in class Library

Parameters:

buffer - the sample data and audio format to save.

identifier - What to call the sample.

Returns:

True if there weren't any problems.

unloadSound

public void unloadSound(java.lang.String filename)

Removes a pre-loaded sound from memory. This is a good method to use for freeing up memory after a large sound file is no longer needed. NOTE: the source will remain in memory after this method has been called, for as long as the sound is attached to an existing source.

Overrides:

unloadSound in class Library

Parameters:

filename - Filename/identifier of the sound file to unload.

setMasterVolume

public void setMasterVolume(float value)

Sets the overall volume to the specified value, affecting all sources.

Overrides:

setMasterVolume in class Library

Parameters:

value - New volume, float value ( 0.0f - 1.0f ).

newSource

public void newSource(boolean priority,
                      boolean toStream,
                      boolean toLoop,
                      java.lang.String sourcename,
                      FilenameURL filenameURL,
                      float x,
                      float y,
                      float z,
                      int attModel,
                      float distOrRoll)

Creates a new source and places it into the source map.

Overrides:

newSource in class Library

Parameters:

priority - Setting this to true will prevent other sounds from overriding this one.

toStream - Setting this to true will load the sound in pieces rather than all at once.

toLoop - Should this source loop, or play only once.

sourcename - A unique identifier for this source. Two sources may not use the same sourcename.

filenameURL - Filename/URL of the sound file to play at this source.

x - X position for this source.

y - Y position for this source.

z - Z position for this source.

attModel - Attenuation model to use.

distOrRoll - Either the fading distance or rolloff factor, depending on the value of "attmodel".

rawDataStream

public void rawDataStream(javax.sound.sampled.AudioFormat audioFormat,
                          boolean priority,
                          java.lang.String sourcename,
                          float x,
                          float y,
                          float z,
                          int attModel,
                          float distOrRoll)

Opens a direct line for streaming audio data.

Overrides:

rawDataStream in class Library

Parameters:

audioFormat - Format that the data will be in.

priority - Setting this to true will prevent other sounds from overriding this one.

sourcename - A unique identifier for this source. Two sources may not use the same sourcename.

x - X position for this source.

y - Y position for this source.

z - Z position for this source.

attModel - Attenuation model to use.

distOrRoll - Either the fading distance or rolloff factor, depending on the value of "attmodel".

quickPlay

public void quickPlay(boolean priority,
                      boolean toStream,
                      boolean toLoop,
                      java.lang.String sourcename,
                      FilenameURL filenameURL,
                      float x,
                      float y,
                      float z,
                      int attModel,
                      float distOrRoll,
                      boolean temporary)

Creates and immediately plays a new source.

Overrides:

quickPlay in class Library

Parameters:

priority - Setting this to true will prevent other sounds from overriding this one.

toStream - Setting this to true will load the sound in pieces rather than all at once.

toLoop - Should this source loop, or play only once.

sourcename - A unique identifier for this source. Two sources may not use the same sourcename.

filenameURL - Filename/URL of the sound file to play at this source.

x - X position for this source.

y - Y position for this source.

z - Z position for this source.

attModel - Attenuation model to use.

distOrRoll - Either the fading distance or rolloff factor, depending on the value of "attmodel".

temporary - Whether or not this source should be removed after it finishes playing.

copySources

public void copySources(java.util.HashMap<java.lang.String,Source> srcMap)

Creates sources based on the source map provided.

Overrides:

copySources in class Library

Parameters:

srcMap - Sources to copy.

setListenerPosition

public void setListenerPosition(float x,
                                float y,
                                float z)

Changes the listener's position.

Overrides:

setListenerPosition in class Library

Parameters:

x - Destination X coordinate.

y - Destination Y coordinate.

z - Destination Z coordinate.

setListenerAngle

public void setListenerAngle(float angle)

Changes the listeners orientation to the specified 'angle' radians counterclockwise around the y-Axis.

Overrides:

setListenerAngle in class Library

Parameters:

angle - Radians.

setListenerOrientation

public void setListenerOrientation(float lookX,
                                   float lookY,
                                   float lookZ,
                                   float upX,
                                   float upY,
                                   float upZ)

Changes the listeners orientation using the specified coordinates.

Overrides:

setListenerOrientation in class Library

Parameters:

lookX - X element of the look-at direction.

lookY - Y element of the look-at direction.

lookZ - Z element of the look-at direction.

upX - X element of the up direction.

upY - Y element of the up direction.

upZ - Z element of the up direction.

setListenerData

public void setListenerData(ListenerData l)

Changes the listeners position and orientation using the specified listener data.

Overrides:

setListenerData in class Library

Parameters:

l - Listener data to use.

setListenerVelocity

public void setListenerVelocity(float x,
                                float y,
                                float z)

Sets the listener's velocity, for use in Doppler effect.

Overrides:

setListenerVelocity in class Library

Parameters:

x - Velocity along world x-axis.

y - Velocity along world y-axis.

z - Velocity along world z-axis.

dopplerChanged

public void dopplerChanged()

The Doppler parameters have changed.

Overrides:

dopplerChanged in class Library

getAL

public static net.java.games.joal.AL getAL()

Returns a handle to OpenAL, or null if OpenAL is not initialized.

Returns:

Used to interface with OpenAL functions.

alPitchSupported

public static boolean alPitchSupported()

Whether or not the AL_PITCH control is supported.

Returns:

True if AL_PITCH is supported.

getTitle

public static java.lang.String getTitle()

Returns the short title of this library type.

Returns:

A short title.

getDescription

public static java.lang.String getDescription()

Returns a longer description of this library type.

Returns:

A longer description.

getClassName

public java.lang.String getClassName()

Returns the name of the class.

Overrides:

getClassName in class Library

Returns:

"Library" + library title.