1/*
2 * Copyright (C) 2012, Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1.  Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2.  Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25enum OscillatorType {
26    "sine",
27    "square",
28    "sawtooth",
29    "triangle",
30    "custom"
31};
32
33// OscillatorNode is an audio generator of periodic waveforms.
34[
35    Conditional=WEB_AUDIO
36] interface OscillatorNode : AudioSourceNode {
37
38    attribute OscillatorType type;
39
40    readonly attribute AudioParam frequency; // in Hertz
41    readonly attribute AudioParam detune; // in Cents
42
43    [RaisesException] void start(optional double when);
44    [RaisesException] void stop(optional double when);
45
46    [RaisesException, ImplementedAs=start] void noteOn(double when);
47    [RaisesException, ImplementedAs=stop] void noteOff(double when);
48
49    void setPeriodicWave(PeriodicWave periodicWave);
50
51    attribute EventHandler onended;
52};
53