/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.driver.sound.speaker;
import javax.naming.NameNotFoundException;
import org.apache.log4j.Logger;
import org.jnode.driver.ApiNotFoundException;
import org.jnode.driver.Device;
import org.jnode.driver.DeviceManager;
import org.jnode.driver.DeviceNotFoundException;
import org.jnode.naming.InitialNaming;
/**
* A static helper class for easy access to the system speaker.
*
* @author Matt Paine
*/
public class SpeakerUtils {
/** My logger */
private static final Logger log = Logger.getLogger(SpeakerUtils.class);
/** The length of a standard interval * */
public static final int INTERVAL = 500;
/** A full length note * */
public static final int FULL = INTERVAL;
/** A half length note * */
public static final int HALF = INTERVAL / 2;
/** A quarter length note * */
public static final int QUART = INTERVAL / 4;
/** A three-quater length note * */
public static final int THREEQUART = (int) (INTERVAL * 0.75);
/** Sounds a beep on the system speaker * */
public static void beep() {
play(stdBeep);
}
/**
* Plays a series of notes through the default speaker.
* Null argument or zero length array plays the standard beep.
*/
public static void play(Note[] n) {
try {
DeviceManager dm = InitialNaming.lookup(DeviceManager.NAME);
Device dev = dm.getDevice("speaker0");
SpeakerAPI s = dev.getAPI(SpeakerAPI.class);
if (n == null || n.length == 0) {
s.beep();
} else {
s.playNote(n);
}
} catch (ApiNotFoundException anfex) {
log.error("Unable to beep: ", anfex);
} catch (DeviceNotFoundException dnfex) {
log.error("Unable to beep: ", dnfex);
} catch (NameNotFoundException nnfex) {
log.debug("Unable to beep: ", nnfex);
}
}
/** What to play as the standard beep (null = a simple beep) * */
public static Note[] stdBeep = new Note[0];
/** Defines a scale * */
public static final Note[] SCALE =
new Note[] {new Note(Note.NOTE_C4, HALF), new Note(Note.NOTE_D4, HALF),
new Note(Note.NOTE_E4, HALF), new Note(Note.NOTE_F4, HALF),
new Note(Note.NOTE_G4, HALF), new Note(Note.NOTE_A4, HALF),
new Note(Note.NOTE_B4, HALF), new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_D5, HALF), new Note(Note.NOTE_E5, HALF),
new Note(Note.NOTE_F5, HALF), new Note(Note.NOTE_G5, HALF),
new Note(Note.NOTE_A5, HALF), new Note(Note.NOTE_B5, HALF),
new Note(Note.NOTE_C6, HALF)};
/** Advance Australia Fair * */
public static final Note[] AAF =
new Note[] {
new Note(Note.NOTE_G4, HALF), // australians
new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_G4, HALF),
new Note(Note.NOTE_E4, HALF),
new Note(Note.NOTE_G4, HALF),
new Note(Note.NOTE_C5, THREEQUART),
new Note(Note.NOTE_C5, QUART),
new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_E5, HALF), // for
new Note(Note.NOTE_D5, HALF),
new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_B4, HALF),
new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_D5, FULL + THREEQUART),
new Note(Note.NOTE_G4, HALF), // with
new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_G4, HALF),
new Note(Note.NOTE_E4, HALF),
new Note(Note.NOTE_C4, HALF),
new Note(Note.NOTE_G4, THREEQUART),
new Note(Note.NOTE_G4, QUART),
new Note(Note.NOTE_G4, HALF),
new Note(Note.NOTE_E5, HALF), // our home
new Note(Note.NOTE_D5, HALF),
new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_B4, HALF),
new Note(Note.NOTE_A4, HALF),
new Note(Note.NOTE_G4, FULL + THREEQUART),
new Note(Note.NOTE_G4, HALF), // our lands
new Note(Note.NOTE_A4, THREEQUART),
new Note(Note.NOTE_B4, QUART),
new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_A4, HALF),
new Note(Note.NOTE_G4, THREEQUART),
new Note(Note.NOTE_E4, QUART),
new Note(Note.NOTE_E4, HALF),
new Note(Note.NOTE_G4, HALF), // of beuty
new Note(Note.NOTE_A4, HALF),
new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_F5, HALF),
new Note(Note.NOTE_E5, HALF),
new Note(Note.NOTE_D5, FULL + THREEQUART),
new Note(Note.NOTE_G4, HALF), // in history
new Note(Note.NOTE_A4, THREEQUART),
new Note(Note.NOTE_B4, QUART),
new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_A4, HALF),
new Note(Note.NOTE_G4, THREEQUART),
new Note(Note.NOTE_C5, QUART),
new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_D5, HALF), // advance
new Note(Note.NOTE_E5, THREEQUART),
new Note(Note.NOTE_C5, QUART),
new Note(Note.NOTE_D5, THREEQUART),
new Note(Note.NOTE_B4, QUART),
new Note(Note.NOTE_C5, FULL + THREEQUART),
new Note(Note.NOTE_E5, HALF), // in joyful
new Note(Note.NOTE_F5, HALF), new Note(Note.NOTE_E5, HALF),
new Note(Note.NOTE_D5, HALF), new Note(Note.NOTE_C5, HALF),
new Note(Note.NOTE_B4, HALF),
new Note(Note.NOTE_A4, HALF),
new Note(Note.NOTE_G4, HALF),
new Note(Note.NOTE_C5, HALF), // advance
new Note(Note.NOTE_E5, THREEQUART), new Note(Note.NOTE_C5, QUART),
new Note(Note.NOTE_D5, THREEQUART), new Note(Note.NOTE_B4, QUART),
new Note(Note.NOTE_C5, FULL + THREEQUART)};
}