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/*
* 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 "modules/webaudio/DelayNode.h"
#include "bindings/core/v8/ExceptionMessages.h"
#include "bindings/core/v8/ExceptionState.h"
#include "core/dom/ExceptionCode.h"
#include "modules/webaudio/AudioBasicProcessorHandler.h"
#include "modules/webaudio/DelayProcessor.h"
#include "wtf/MathExtras.h"
namespace blink {
const double maximumAllowedDelayTime = 180;
DelayNode::DelayNode(AbstractAudioContext& context, float sampleRate, double maxDelayTime)
: AudioNode(context)
, m_delayTime(AudioParam::create(context, 0.0))
{
setHandler(AudioBasicProcessorHandler::create(AudioHandler::NodeTypeDelay, *this, sampleRate, adoptPtr(new DelayProcessor(sampleRate, 1, m_delayTime->handler(), maxDelayTime))));
}
DelayNode* DelayNode::create(AbstractAudioContext& context, float sampleRate, double maxDelayTime, ExceptionState& exceptionState)
{
if (maxDelayTime <= 0 || maxDelayTime >= maximumAllowedDelayTime) {
exceptionState.throwDOMException(
NotSupportedError,
ExceptionMessages::indexOutsideRange(
"max delay time",
maxDelayTime,
0.0,
ExceptionMessages::ExclusiveBound,
maximumAllowedDelayTime,
ExceptionMessages::ExclusiveBound));
return nullptr;
}
return new DelayNode(context, sampleRate, maxDelayTime);
}
AudioParam* DelayNode::delayTime()
{
return m_delayTime;
}
DEFINE_TRACE(DelayNode)
{
visitor->trace(m_delayTime);
AudioNode::trace(visitor);
}
} // namespace blink
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