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