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 25// OscillatorNode is an audio generator of periodic waveforms. 26[ 27 Conditional=WEB_AUDIO, 28 JSGenerateToJSObject, 29] interface OscillatorNode : AudioNode { 30 31 // Type constants. 32 const unsigned short SINE = 0; 33 const unsigned short SQUARE = 1; 34 const unsigned short SAWTOOTH = 2; 35 const unsigned short TRIANGLE = 3; 36 const unsigned short CUSTOM = 4; 37 38 [CustomSetter] attribute DOMString type; 39 40 // Playback state constants. 41 const unsigned short UNSCHEDULED_STATE = 0; 42 const unsigned short SCHEDULED_STATE = 1; 43 const unsigned short PLAYING_STATE = 2; 44 const unsigned short FINISHED_STATE = 3; 45 46 readonly attribute unsigned short playbackState; 47 48 readonly attribute AudioParam frequency; // in Hertz 49 readonly attribute AudioParam detune; // in Cents 50 51 [RaisesException] void start(unrestricted double when); 52 [RaisesException] void stop(unrestricted double when); 53 54 [Conditional=LEGACY_WEB_AUDIO, RaisesException] void noteOn(unrestricted double when); 55 [Conditional=LEGACY_WEB_AUDIO, RaisesException] void noteOff(unrestricted double when); 56 57 void setPeriodicWave(PeriodicWave wave); 58 59 attribute EventListener onended; 60}; 61