/*

 * Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import java.io.ByteArrayInputStream;

import java.io.InputStream;

import javax.sound.sampled.AudioFormat;

import javax.sound.sampled.AudioInputStream;

import javax.sound.sampled.AudioSystem;

import javax.sound.sampled.Clip;

import javax.sound.sampled.DataLine;

import javax.sound.sampled.LineEvent;

import javax.sound.sampled.LineListener;

import javax.sound.sampled.LineUnavailableException;

import javax.sound.sampled.Mixer;

/**

 * @test

 * @bug 4498848

 * @summary Sound causes crashes on Linux (part 3)

 */

public class ClipLinuxCrash2 implements LineListener{

    Clip clip;

    int stopOccured;

    static final Object lock = new Object();

    public static long bytes2Ms(long bytes, AudioFormat format) {

        return (long) (bytes/format.getFrameRate()*1000/format.getFrameSize());

    }

    static int staticLen=1000;

    static boolean addLen=true;

    ClipLinuxCrash2() {

    }

    public void update(LineEvent e) {

        if (e.getType() == LineEvent.Type.STOP) {

            stopOccured++;

            out("  Test program: receives STOP event for clip="+clip.toString()+" no."+stopOccured);

            out("  Test program: Calling close() in event dispatcher thread");

            clip.close();

            synchronized (lock) {

                lock.notifyAll();

            }

        }

        else if (e.getType() == LineEvent.Type.CLOSE) {

            out("  Test program: receives CLOSE event for "+clip.toString());

            synchronized (lock) {

                lock.notifyAll();

            }

        }

        else if (e.getType() == LineEvent.Type.START) {

            out("  Test program: receives START event for "+clip.toString());

        }

        else if (e.getType() == LineEvent.Type.OPEN) {

            out("  Test program: receives OPEN event for "+clip.toString());

        }

    }

    public long start() throws Exception {

        AudioFormat format = new AudioFormat(44100, 16, 2, true, false);

        if (addLen) {

            staticLen+=(int) (staticLen/5)+1000;

        } else {

            staticLen-=(int) (staticLen/5)+1000;

        }

        if (staticLen>8*44100*4) {

            staticLen = 8*44100*4;

            addLen=!addLen;

        }

        if (staticLen<1000) {

            staticLen = 1000;

            addLen=!addLen;

        }

        int len = staticLen;

        len -= (len % 4);

        out("  Test program: preparing to play back "+len+" bytes == "+bytes2Ms(len, format)+"ms audio...");

        byte[] fakedata=new byte[len];

        InputStream is = new ByteArrayInputStream(fakedata);

        AudioInputStream ais = new AudioInputStream(is, format, fakedata.length/format.getFrameSize());

        DataLine.Info info = new DataLine.Info(Clip.class, ais.getFormat());

        clip = (Clip) AudioSystem.getLine(info);

        clip.addLineListener(this);

        out("  Test program: opening clip="+((clip==null)?"null":clip.toString()));

        clip.open(ais);

        ais.close();

        out("  Test program: starting clip="+((clip==null)?"null":clip.toString()));

        clip.start();

        return bytes2Ms(fakedata.length, format);

    }

    public static void main(String[] args) throws Exception {

        if (!isSoundcardInstalled()) {

            return;

        }

        try {

            int COUNT=10;

            out();

            out("4498848 Sound causes crashes on Linux");

            if (args.length>0) {

                COUNT=Integer.parseInt(args[0]);

            }

            for (int i=0; i<COUNT; i++) {

                out("trial "+(i+1)+"/"+COUNT);

                ClipLinuxCrash2 t = new ClipLinuxCrash2();

                t.start();

                int waitTime = 300+(1300*(i % 2)); // every 2nd time wait 1600, rather than 300ms.

                out("  Test program: waiting for "+waitTime+" ms for audio playback to stop...");

                Thread.sleep(waitTime);

                out("  Test program: calling close() from main thread");

                t.clip.close();

                // let the subsystem enough time to actually close the soundcard

                //out("  Test program: waiting for 2 seconds...");

                //Thread.sleep(2000);

                //out();

            }

            out("  Test program: waiting for 1 second...");

            Thread.sleep(1000);

        } catch (Exception e) {

            e.printStackTrace();

            out("  Test program: waiting for 1 second");

            try {

                Thread.sleep(1000);

            } catch (InterruptedException ie) {}

            // do not fail if no audio device installed - bug 4742021

            if (!(e instanceof LineUnavailableException)) {

                throw e;

            }

        }

        out("Test passed");

    }

    static void out() {

        out("");

    }

    static void out(String s) {

        System.out.println(s); System.out.flush();

    }

    /**

     * Returns true if at least one soundcard is correctly installed

     * on the system.

     */

    public static boolean isSoundcardInstalled() {

        boolean result = false;

        try {

            Mixer.Info[] mixers = AudioSystem.getMixerInfo();

            if (mixers.length > 0) {

                result = AudioSystem.getSourceDataLine(null) != null;

            }

        } catch (Exception e) {

            System.err.println("Exception occured: "+e);

        }

        if (!result) {

            System.err.println("Soundcard does not exist or sound drivers not installed!");

            System.err.println("This test requires sound drivers for execution.");

        }

        return result;

    }

}