Source/modules/webaudio/DelayProcessor.cpp

/*
 * 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
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 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
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 * 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
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#include "config.h"

#if ENABLE(WEB_AUDIO)

#include "modules/webaudio/DelayProcessor.h"

#include "modules/webaudio/DelayDSPKernel.h"

namespace blink {

DelayProcessor::DelayProcessor(AudioContext* context, float sampleRate, unsigned numberOfChannels, double maxDelayTime)
    : AudioDSPKernelProcessor(sampleRate, numberOfChannels)
    , m_maxDelayTime(maxDelayTime)
{
    m_delayTime = AudioParam::create(context, 0.0);
}

DelayProcessor::~DelayProcessor()
{
    if (isInitialized())
        uninitialize();
}

void DelayProcessor::trace(Visitor* visitor)
{
    visitor->trace(m_delayTime);
    AudioDSPKernelProcessor::trace(visitor);
}

PassOwnPtr<AudioDSPKernel> DelayProcessor::createKernel()
{
    return adoptPtr(new DelayDSPKernel(this));
}

} // namespace blink

#endif // ENABLE(WEB_AUDIO)