/* * Copyright (C) 2010, Google Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #if ENABLE(WEB_AUDIO) #include "DelayNode.h" #include "DelayOptions.h" #include "DelayProcessor.h" #include <wtf/IsoMallocInlines.h> namespace WebCore { WTF_MAKE_ISO_ALLOCATED_IMPL(DelayNode); const double maximumAllowedDelayTime = 180; inline DelayNode::DelayNode(BaseAudioContext& context, double maxDelayTime) : AudioBasicProcessorNode(context) { setNodeType(NodeTypeDelay); m_processor = makeUnique<DelayProcessor>(context, context.sampleRate(), 1, maxDelayTime); } ExceptionOr<Ref<DelayNode>> DelayNode::create(BaseAudioContext& context, const DelayOptions& options) { if (context.isStopped()) return Exception { InvalidStateError }; context.lazyInitialize(); if (options.maxDelayTime <= 0 || options.maxDelayTime >= maximumAllowedDelayTime) return Exception { NotSupportedError }; auto delayNode = adoptRef(*new DelayNode(context, options.maxDelayTime)); auto result = delayNode->handleAudioNodeOptions(options, { 2, ChannelCountMode::Max, ChannelInterpretation::Speakers }); if (result.hasException()) return result.releaseException(); delayNode->delayTime().setValue(options.delayTime); return delayNode; } AudioParam& DelayNode::delayTime() { return static_cast<DelayProcessor&>(*m_processor).delayTime(); } } // namespace WebCore #endif // ENABLE(WEB_AUDIO)