1 /* 2 * Copyright (C) 2010, 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 #include "config.h" 26 27 #if ENABLE(WEB_AUDIO) 28 29 #include "modules/webaudio/DelayNode.h" 30 31 #include "bindings/v8/ExceptionState.h" 32 #include "core/dom/ExceptionCode.h" 33 34 namespace WebCore { 35 36 const double maximumAllowedDelayTime = 180; 37 38 DelayNode::DelayNode(AudioContext* context, float sampleRate, double maxDelayTime, ExceptionState& es) 39 : AudioBasicProcessorNode(context, sampleRate) 40 { 41 ScriptWrappable::init(this); 42 if (maxDelayTime <= 0 || maxDelayTime >= maximumAllowedDelayTime) { 43 es.throwDOMException(NotSupportedError); 44 return; 45 } 46 m_processor = adoptPtr(new DelayProcessor(context, sampleRate, 1, maxDelayTime)); 47 setNodeType(NodeTypeDelay); 48 } 49 50 AudioParam* DelayNode::delayTime() 51 { 52 return delayProcessor()->delayTime(); 53 } 54 55 } // namespace WebCore 56 57 #endif // ENABLE(WEB_AUDIO) 58
