jdk/test/javax/sound/midi/Sequencer/MetaCallback.java
changeset 41905 e8e5df013c6e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/sound/midi/Sequencer/MetaCallback.java	Mon Oct 31 14:50:09 2016 +0300
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2003, 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 javax.sound.midi.Instrument;
+import javax.sound.midi.InvalidMidiDataException;
+import javax.sound.midi.MetaEventListener;
+import javax.sound.midi.MetaMessage;
+import javax.sound.midi.MidiEvent;
+import javax.sound.midi.MidiSystem;
+import javax.sound.midi.Sequence;
+import javax.sound.midi.Sequencer;
+import javax.sound.midi.ShortMessage;
+import javax.sound.midi.Track;
+
+/**
+ * @test
+ * @bug 4347135
+ * @summary MIDI MetaMessage callback inconsistent
+ * @run main/othervm MetaCallback
+ */
+public class MetaCallback implements MetaEventListener {
+
+    static ShortMessage MidiMsg3(int a, int b, int c) {
+        try {
+            ShortMessage msg = new ShortMessage();
+            msg.setMessage((byte)a,(byte)b,(byte)c);
+            return msg;
+        } catch(InvalidMidiDataException ex) {
+            throw new RuntimeException();
+        }
+    }
+
+    //Synthesizer synth;
+    Instrument[] instruments;
+    Sequencer sequencer;
+    Sequence sequence;
+    Track track;
+
+    public static int TOTAL_COUNT = 100;
+
+    int metaCount = 0;
+    boolean finished = false;
+
+    MetaCallback() throws Exception {
+
+        sequencer=MidiSystem.getSequencer();
+        sequence=new Sequence(Sequence.PPQ,240);
+        track=sequence.createTrack();
+        sequencer.addMetaEventListener(this);
+
+        byte[] data = new byte[1];
+
+        track.add(new MidiEvent(MidiMsg3(ShortMessage.NOTE_ON+0,45,100),0));
+        track.add(new MidiEvent(MidiMsg3(ShortMessage.NOTE_ON+0,45,0),0 + 240));
+        int c;
+        for(c=0; c < TOTAL_COUNT; c++) {
+            data[0]=(byte)(c+1);
+            MetaMessage meta = new MetaMessage();
+            meta.setMessage(1, data, 1); // type, data, length
+            track.add(new MidiEvent(meta,c*20));
+        }
+        track.add(new MidiEvent(MidiMsg3(ShortMessage.NOTE_ON+9,45,100),c*20));
+        track.add(new MidiEvent(MidiMsg3(ShortMessage.NOTE_ON+9,45,0),c*20 + 10));
+
+        sequencer.setSlaveSyncMode(Sequencer.SyncMode.INTERNAL_CLOCK);
+        sequencer.setMasterSyncMode(Sequencer.SyncMode.INTERNAL_CLOCK);
+        sequencer.open();
+        sequencer.setSequence(sequence);
+        sequencer.setTempoInBPM(100);
+        System.out.println("Starting playback...");
+        this.start();
+        while (!finished && sequencer.getTickPosition() < sequencer.getTickLength()) {
+            System.out.println("Tick "+sequencer.getTickPosition()+"...");
+            Thread.sleep(1000);
+        }
+        System.out.println("Stopping playback...");
+        this.stop();
+        if (metaCount != TOTAL_COUNT) {
+            throw new Exception("Expected "+TOTAL_COUNT+" callbacks, but got "+metaCount+"!");
+        }
+    }
+    void start() {sequencer.start();}
+    void stop() {sequencer.stop();}
+
+    public void meta(MetaMessage msg) {
+        System.out.println(""+metaCount+": got "+msg);
+        if (msg.getType() == 0x2F) {
+            finished = true;
+        } else if (msg.getData().length > 0 && msg.getType() == 1) {
+            metaCount++;
+        }
+    }
+
+    public static void main(String[] argv) throws Exception {
+        if (hasSequencer()) {
+            new MetaCallback();
+            System.out.println("Test passed");
+        }
+    }
+
+    static boolean hasSequencer() {
+        try {
+            Sequencer seq = MidiSystem.getSequencer();
+            if (seq != null) {
+                seq.open();
+                seq.close();
+                return true;
+            }
+        } catch (Exception e) {}
+        System.out.println("No sequencer available! Cannot execute test.");
+        return false;
+    }
+}