111 lines
3.6 KiB
Java
111 lines
3.6 KiB
Java
/*
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* Copyright (C) 2012 Brendan Robert (BLuRry) brendan.robert@gmail.com.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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package jace.core;
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import javax.sound.sampled.AudioFormat;
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import javax.sound.sampled.AudioSystem;
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import javax.sound.sampled.DataLine;
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import javax.sound.sampled.LineUnavailableException;
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import javax.sound.sampled.SourceDataLine;
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import jace.config.ConfigurableField;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import javax.sound.sampled.FloatControl;
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/**
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* Manages sound resources used by various audio devices (such as speaker and
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* mockingboard cards.) The plumbing is managed in this class so that the
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* consumers do not have to do a lot of work to manage mixer lines or deal with
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* how to reuse active lines if needed. It is possible that this class might be
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* used to manage volume in the future, but that remains to be seen.
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*
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* @author Brendan Robert (BLuRry) brendan.robert@gmail.com
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*/
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public class SoundMixer extends Device {
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/**
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* Bits per sample
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*/
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@ConfigurableField(name = "Bits per sample", shortName = "bits")
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public static int BITS = 16;
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/**
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* Sample playback rate
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*/
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@ConfigurableField(name = "Playback Rate", shortName = "freq")
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public static int RATE = 48000;
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@ConfigurableField(name = "Mute", shortName = "mute")
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public static boolean MUTE = false;
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public SoundMixer(Computer computer) {
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super(computer);
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}
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/**
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* Get a javafx media sourcedataline for stereo 44.1KHz 16-bit signed PCM data.
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* Confirm the line is open before using it.
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*
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* @return
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*/
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public SourceDataLine getLine() {
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if (MUTE) {
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return null;
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}
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SourceDataLine line = null;
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try {
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// WAV is a little endian format, so it makes sense to stick with that.
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AudioFormat format = new AudioFormat(RATE, BITS, 2, true, false);
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DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
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line = (SourceDataLine) AudioSystem.getLine(info);
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line.open(format);
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line.start();
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// Logger.getLogger(getClass().getName()).log(Level.INFO, "Obtained source data line: %s, buffer size %d".formatted(line.getFormat(), line.getBufferSize()));
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} catch (LineUnavailableException e) {
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Logger.getLogger(getClass().getName()).log(Level.SEVERE, "Error getting sound line: {0}", e.getMessage());
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}
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return line;
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}
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@Override
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public String getDeviceName() {
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return "Sound Output";
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}
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@Override
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public String getShortName() {
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return "mixer";
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}
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@Override
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public synchronized void reconfigure() {
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if (MUTE) {
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detach();
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}
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}
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public byte randomByte() {
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return (byte) (Math.random() * 256);
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}
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@Override
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public void tick() {
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}
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}
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