ClipLoader.java

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/*
 * This file is part of JXClient, the Fullscreen Java Crossfire Client.
 *
 * JXClient is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * JXClient is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with JXClient; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Copyright (C) 2005-2008 Yann Chachkoff
 * Copyright (C) 2006-2017,2019-2023 Andreas Kirschbaum
 * Copyright (C) 2010-2012,2014-2018,2020-2023 Nicolas Weeger
 */
 
package com.realtime.crossfire.jxclient.sound;
 
import com.realtime.crossfire.jxclient.util.DebugWriter;
import java.io.IOException;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioFormat.Encoding;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.Line;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
 
public class ClipLoader {
 
    @NotNull
    private final AudioFileLoader audioFileLoader;
 
    @Nullable
    private final DebugWriter debugSound;
 
    public ClipLoader(@NotNull final AudioFileLoader audioFileLoader, @Nullable final DebugWriter debugSound) {
        this.audioFileLoader = audioFileLoader;
        this.debugSound = debugSound;
    }
 
    public void freeClip(@NotNull final Line clip) {
        if (debugSound != null) {
            debugSound.debugProtocolWrite("freeClip: "+System.identityHashCode(clip));
        }
        clip.close();
    }
 
    @Nullable
    public DataLine allocateClip(@NotNull final CharSequence action) {
        try {
            try (AudioInputStream rawInputStream = AudioSystem.getAudioInputStream(audioFileLoader.getInputStream(action))) {
                final Clip clip;
                try {
                    final AudioFormat baseFormat = rawInputStream.getFormat();
                    final AudioFormat decodedFormat = new AudioFormat(Encoding.PCM_SIGNED, baseFormat.getSampleRate(), 16, baseFormat.getChannels(), baseFormat.getChannels()*2, baseFormat.getSampleRate(), false);
                    try (AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(decodedFormat, rawInputStream)) {
                        clip = AudioSystem.getClip();
                        clip.open(audioInputStream);
                    }
                } catch (final IllegalArgumentException|NegativeArraySizeException ex) {
                    final UnsupportedAudioFileException ex2 = new UnsupportedAudioFileException(ex.getMessage());
                    ex2.initCause(ex);
                    throw ex2;
                }
                if (debugSound != null) {
                    debugSound.debugProtocolWrite("newClip: "+System.identityHashCode(clip)+" "+action);
                }
                return clip;
            }
        } catch (final IOException|LineUnavailableException|UnsupportedAudioFileException ex) {
            if (debugSound != null) {
                debugSound.debugProtocolWrite("newClip["+action+"]: "+ex.getMessage());
            }
            return null;
        }
    }
 
}