/*
* Copyright 2013 MovingBlocks
*
* 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 org.terasology.audio.openAL.staticSound;
import org.lwjgl.openal.AL10;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.terasology.assets.AssetType;
import org.terasology.assets.ResourceUrn;
import org.terasology.audio.StaticSound;
import org.terasology.audio.StaticSoundData;
import org.terasology.audio.openAL.OpenALException;
import org.terasology.audio.openAL.OpenALManager;
import org.terasology.engine.GameThread;
import java.lang.ref.WeakReference;
import static org.lwjgl.openal.AL10.AL_BITS;
import static org.lwjgl.openal.AL10.AL_CHANNELS;
import static org.lwjgl.openal.AL10.AL_FREQUENCY;
import static org.lwjgl.openal.AL10.AL_SIZE;
import static org.lwjgl.openal.AL10.alDeleteBuffers;
import static org.lwjgl.openal.AL10.alGenBuffers;
import static org.lwjgl.openal.AL10.alGetBufferi;
public final class OpenALSound extends StaticSound {
private static final Logger logger = LoggerFactory.getLogger(OpenALSound.class);
protected float length;
private final OpenALManager audioManager;
private DisposalAction disposalAction;
// TODO: Do we have proper support for unloading sounds (as mods are changed?)
private int bufferId;
public OpenALSound(ResourceUrn urn, AssetType<?, StaticSoundData> assetType, StaticSoundData data, OpenALManager audioManager) {
super(urn, assetType);
this.audioManager = audioManager;
disposalAction = new DisposalAction(urn, this);
getDisposalHook().setDisposeAction(disposalAction);
reload(data);
}
@Override
public float getLength() {
return length;
}
@Override
public int getChannels() {
return alGetBufferi(bufferId, AL_CHANNELS);
}
@Override
public int getSamplingRate() {
return alGetBufferi(bufferId, AL_FREQUENCY);
}
public int getBufferId() {
return bufferId;
}
public int getBufferBits() {
return alGetBufferi(bufferId, AL_BITS);
}
@Override
public int getBufferSize() {
return alGetBufferi(bufferId, AL_SIZE);
}
@Override
public void play() {
audioManager.playSound(this);
}
@Override
public void play(float volume) {
audioManager.playSound(this, volume);
}
@Override
protected void doReload(StaticSoundData newData) {
try {
GameThread.synch(() -> {
if (bufferId == 0) {
bufferId = alGenBuffers();
disposalAction.bufferId = bufferId;
} else {
audioManager.purgeSound(this);
}
AL10.alBufferData(bufferId, newData.getChannels() == 1 ? AL10.AL_FORMAT_MONO16 : AL10.AL_FORMAT_STEREO16, newData.getData(), newData.getSampleRate());
OpenALException.checkState("Allocating sound buffer");
int bits = newData.getBufferBits();
int size = getBufferSize();
int channels = getChannels();
int frequency = getSamplingRate();
length = (float) size / channels / (bits / 8) / frequency;
});
} catch (InterruptedException e) {
logger.error("Failed to reload {}", getUrn(), e);
}
}
private static class DisposalAction implements Runnable {
private final ResourceUrn urn;
private int bufferId;
private final WeakReference<OpenALSound> asset;
DisposalAction(ResourceUrn urn, OpenALSound openALSound) {
this.urn = urn;
asset = new WeakReference<>(openALSound);
}
@Override
public void run() {
try {
GameThread.synch(() -> {
OpenALSound sound = asset.get();
if (bufferId != 0) {
if (sound != null) {
sound.audioManager.purgeSound(sound);
}
alDeleteBuffers(bufferId);
OpenALException.checkState("Deleting buffer data");
}
});
} catch (InterruptedException e) {
logger.error("Failed to dispose {}", urn, e);
}
}
}
}