01: /*
02: * Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
04: *
05: * This program is free software; you can redistribute it and/or
06: * modify it under the terms of the GNU General Public License version
07: * 2 only, as published by the Free Software Foundation.
08: *
09: * This program is distributed in the hope that it will be useful, but
10: * WITHOUT ANY WARRANTY; without even the implied warranty of
11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12: * General Public License version 2 for more details (a copy is
13: * included at /legal/license.txt).
14: *
15: * You should have received a copy of the GNU General Public License
16: * version 2 along with this work; if not, write to the Free Software
17: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18: * 02110-1301 USA
19: *
20: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
21: * Clara, CA 95054 or visit www.sun.com if you need additional
22: * information or have any questions.
23: */
24: package com.sun.mmedia;
25:
26: import javax.microedition.media.MediaException;
27: import com.sun.mmedia.TonePlayer;
28:
29: /**
30: * Tone Player to play a single note of specified duration
31: * and at the specified volume.
32: *
33: * @created January 13, 2005
34: */
35:
36: public class NativeTonePlayer implements TonePlayer {
37: /**
38: * The native implementation method to play a tone.
39: *
40: * @param note Defines the tone of the note.
41: * @param dur The duration of the tone in milli-seconds.
42: * @param vol Audio volume range from 0 to 100.
43: * @return the tone player handle, or 0 if it failed to play the tone
44: */
45: private native boolean nPlayTone(int note, int dur, int vol);
46:
47: private native boolean nStopTone();
48:
49: // native finalizer
50: private native void finalize();
51:
52: public void playTone(int note, int duration, int volume)
53: throws MediaException {
54:
55: if (false == nPlayTone(note, duration, volume)) {
56: throw new MediaException("can't play tone");
57: }
58: }
59:
60: /**
61: * Stop current tone playing
62: */
63: public void stopTone() {
64: nStopTone();
65: }
66: }
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