| /* |
| * 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 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 4427890 |
| * @run main/othervm TickLength |
| * @summary Sequencer.getTickLength() and Sequence.getTickLength() report the |
| * wrong length |
| */ |
| public class TickLength implements MetaEventListener { |
| private Sequence theSequence; |
| private Sequencer theSequencer; |
| |
| public TickLength() { |
| this.initMidiCompoments(); |
| System.out.println("Got Sequencer "+theSequencer); |
| theSequence = this.generateSequence(); |
| try { |
| theSequencer.setSequence(theSequence); |
| } |
| catch(Exception e) { |
| System.out.println(this.getClass()+"\tCannot set sequence to sequencer ("+e+")"); |
| return; |
| } |
| } |
| |
| public void start() { |
| theSequencer.start(); |
| } |
| |
| /* |
| instantiate the necessary midi components |
| */ |
| private boolean initMidiCompoments() { |
| |
| |
| try { |
| theSequencer = MidiSystem.getSequencer(); |
| } |
| catch(Exception e) { |
| System.out.println(this.getClass()+"\tSequencer Device not supported"+e+")"); |
| return false; |
| } |
| |
| try { |
| theSequencer.open(); |
| } |
| catch(Exception e) { |
| System.out.println(this.getClass()+"Cannot open Sequencer Device"); |
| return false; |
| } |
| if(!theSequencer.addMetaEventListener(this)) { |
| System.out.println(this.getClass()+"\tCould not register MetaEventListener - there will be problems with scrolling! "); |
| return false; |
| } |
| return true; |
| } |
| |
| static int lastTick = 0; |
| |
| private Sequence generateSequence() { |
| MidiEvent dummyMidiEvent; |
| ShortMessage dummyShortMessage; |
| Sequence dummySequence = null; |
| Track[] allTracks ; |
| Track theTrack; |
| |
| try { |
| dummySequence = new Sequence(Sequence.PPQ,1500); |
| } |
| catch(InvalidMidiDataException e) { |
| System.out.println("O o "+e); |
| } |
| |
| dummySequence.createTrack(); |
| allTracks = dummySequence.getTracks(); |
| theTrack = allTracks[0]; |
| lastTick = 0; |
| for(int i=0;i<20; i++) { |
| theTrack.add(this.createShortMidiEvent(ShortMessage.NOTE_ON, 2, 30+i, 100,100+1000*i)); |
| theTrack.add(this.createMetaMidiEvent(1,"start",100+1000*i)); |
| lastTick = (1000*i)+600; |
| theTrack.add(this.createShortMidiEvent(ShortMessage.NOTE_OFF, 2, 30+i, 100, lastTick)); |
| theTrack.add(this.createMetaMidiEvent(1,"end",lastTick)); |
| } |
| |
| return dummySequence; |
| } |
| |
| /* |
| A method to create a short midi event (sound) |
| */ |
| |
| public MidiEvent createShortMidiEvent(int theCommand, int theChannel, int theData1, int theData2, long theTime) { |
| ShortMessage dummyShortMessage; |
| MidiEvent dummyMidiEvent; |
| |
| try { |
| dummyShortMessage = new ShortMessage(); |
| dummyShortMessage.setMessage(theCommand, theChannel, theData1, theData2); |
| dummyMidiEvent = new MidiEvent(dummyShortMessage,theTime); |
| } |
| catch (Exception e) { |
| System.out.println(this.getClass()+"\t"+e); |
| return null; |
| } |
| |
| return dummyMidiEvent; |
| } |
| |
| /* |
| A method to create a meta midi event (used in meta() method) |
| */ |
| public MidiEvent createMetaMidiEvent(int theType, String theData1, long theTime) { |
| MetaMessage dummyMetaMessage; |
| MidiEvent dummyMidiEvent; |
| |
| try { |
| dummyMetaMessage = new MetaMessage(); |
| dummyMetaMessage.setMessage(theType, theData1.getBytes(), theData1.length()); |
| dummyMidiEvent = new MidiEvent(dummyMetaMessage,theTime); |
| } |
| catch (Exception e) { |
| System.out.println(e); |
| return null; |
| } |
| |
| return dummyMidiEvent; |
| } |
| |
| /* |
| the method is activated by each meta midi event |
| it puts out the actual tick position, as well as the WRONG total tick length and the RIGHT |
| tick length using the work around by dividing the total length by 64 |
| */ |
| public void meta(MetaMessage p1) { |
| if(p1.getType() ==47) { |
| return; |
| } |
| System.out.println("getTickPosition:\t"+theSequencer.getTickPosition() |
| +"\t Sequencer.getTickLength:\t"+theSequencer.getTickLength() |
| +"\tReal Length:\t"+lastTick |
| +"\t Sequence.getTickLength:\t"+theSequence.getTickLength() |
| //(theSequencer.getTickLength()/64)); |
| ); |
| } |
| |
| public void checkLengths() throws Exception { |
| System.out.println("Sequencer.getTickLength() = "+theSequencer.getTickLength()); |
| System.out.println("Sequence.getTickLength() = "+theSequence.getTickLength()); |
| long diff = theSequencer.getTickLength() - theSequence.getTickLength(); |
| if (diff > 100 || diff < -100) { |
| throw new Exception("Difference too large! Failed."); |
| } |
| System.out.println("Passed"); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| if (!hasSequencer()) { |
| return; |
| } |
| TickLength tlt = new TickLength(); |
| //tlt.start(); |
| tlt.checkLengths(); |
| } |
| |
| 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; |
| } |
| |
| } |