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 * 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.

 *

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import javax.sound.midi.MidiDevice;

import javax.sound.midi.MidiSystem;

import javax.sound.midi.MidiUnavailableException;

import javax.sound.midi.Sequencer;

/**

 * @test

 * @bug 4716740

 * @summary default sequencer does not set the tempo factor

 */

public class SequencerCacheValues {

    static boolean failed = false;

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

        Sequencer seq = null;

        int totalNumberOfSequencers = 0;

        MidiDevice.Info[] infos = MidiSystem.getMidiDeviceInfo();

        for (int device=0; device<infos.length; device++) {

            //seq = MidiSystem.getSequencer();

            MidiDevice dev = MidiSystem.getMidiDevice(infos[device]);

            if (dev instanceof Sequencer) {

                seq = (Sequencer) dev;

                totalNumberOfSequencers++;

                System.out.println("Opening sequencer "+infos[device]);

                try {

                    seq.open();

                    try {

                        doTest(seq);

                    } finally {

                        if (seq != null) {

                            seq.close();

                            seq = null;

                        }

                    }

                } catch (MidiUnavailableException mue) {

                    System.err.println("MidiUnavailableException was thrown: " + mue);

                    System.err.println("could not test this sequencer.");

                }

            }

        }

        if (totalNumberOfSequencers == 0) {

            System.out.println("No sequencers installed!");

            failed = true;

        }

        if (failed) {

            throw new Exception("FAILED");

        } else {

            System.out.println("test OK");

        }

    }

    public static boolean equalsFloat(float f1, float f2) {

        return (f1-f2<0.0001) && (f2-f1<0.0001);

    }

    public static void doTest(Sequencer seq) throws Exception {

        seq.setTempoInMPQ(3.0f);

        System.out.println("Setting tempo in MPQ to "+3.0f);

        if (!equalsFloat(seq.getTempoInMPQ(), 3.0f)) {

            System.err.println("getTempoInMPQ() returns wrong value : "

                + seq.getTempoInMPQ());

            failed = true;

        }

        System.out.println("Setting tempo factor to "+2.0f);

        seq.setTempoFactor(2.0f);

        if (!equalsFloat(seq.getTempoFactor(), 2.0f)) {

            System.err.println("getTempoFactor() returns: " + seq.getTempoFactor());

            failed = true;

        }

        float bpmTempo = 120.0f;

        System.out.println("Setting tempo to "+120.0f+"bpm");

        seq.setTempoInBPM(bpmTempo);

        if (!equalsFloat(seq.getTempoInMPQ(), (60000000.0f/seq.getTempoInBPM()))) {

            System.err.println("getTempoInMPQ() returns: " + seq.getTempoInMPQ());

            System.err.println("getTempoInBPM() returns: " + seq.getTempoInBPM());

            failed = true;

        }

    }

}