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/*
* Copyright 2010 Phil Burk, Mobileer Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jsyn.devices;
import com.jsyn.util.JavaTools;
/**
* Create a device appropriate for the platform.
*
* @author Phil Burk (C) 2010 Mobileer Inc
*/
public class AudioDeviceFactory {
private static AudioDeviceManager instance;
/**
* Use a custom device interface. Overrides the selection of a default device manager.
*
* @param instance
*/
public static void setInstance(AudioDeviceManager instance) {
AudioDeviceFactory.instance = instance;
}
/**
* Try to load JPortAudio or JavaSound devices.
*
* @return A device supported on this platform.
*/
public static AudioDeviceManager createAudioDeviceManager() {
return createAudioDeviceManager(false);
}
/**
* Try to load JPortAudio or JavaSound devices.
*
* @param preferJavaSound if true then try to create a JavaSound manager before other types.
* @return A device supported on this platform.
*/
public static AudioDeviceManager createAudioDeviceManager(boolean preferJavaSound) {
if (preferJavaSound) {
tryJavaSound();
tryOpenAL();
tryJPortAudio();
} else {
tryOpenAL();
tryJPortAudio();
tryJavaSound();
}
return instance;
}
private static void tryOpenAL() {
if (instance == null) {
try {
@SuppressWarnings("unchecked")
final
Class<AudioDeviceManager> clazz = JavaTools.loadClass(
"com.jsyn.devices.openal.ALDevice", true);
if (clazz != null) {
instance = clazz.newInstance();
}
} catch (final Throwable e) {
System.err.println("Could not load JOAL/OpenAL device. " + e);
}
}
}
private static void tryJavaSound() {
if (instance == null) {
try {
@SuppressWarnings("unchecked")
Class<AudioDeviceManager> clazz = JavaTools.loadClass(
"com.jsyn.devices.javasound.JavaSoundAudioDevice", false);
if (clazz != null) {
instance = clazz.newInstance();
}
} catch (Throwable e) {
System.err.println("Could not load JavaSound device. " + e);
}
}
}
private static void tryJPortAudio() {
if (instance == null) {
try {
if (JavaTools.loadClass("com.portaudio.PortAudio", false) != null) {
instance = (AudioDeviceManager) JavaTools.loadClass(
"com.jsyn.devices.jportaudio.JPortAudioDevice").newInstance();
}
} catch (Throwable e) {
System.err.println("Could not load JPortAudio device. " + e);
}
}
}
}
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