/*
 * 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.
 */

#pragma once

#include "AudioDSPKernelProcessor.h"
#include "AudioParam.h"
#include <memory>
#include <wtf/RefPtr.h>
#include <wtf/TZoneMalloc.h>

namespace WebCore {

class AudioDSPKernel;

class DelayProcessor final : public AudioDSPKernelProcessor {
    WTF_MAKE_TZONE_ALLOCATED(DelayProcessor);
    WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(DelayProcessor);
public:
    DelayProcessor(BaseAudioContext&, float sampleRate, unsigned numberOfChannels, double maxDelayTime);
    virtual ~DelayProcessor();

    std::unique_ptr<AudioDSPKernel> createKernel() override;

    AudioParam& delayTime() const { return m_delayTime.get(); }
    double maxDelayTime() { return delayTime().maxValue(); }

private:
    Type processorType() const final { return Type::Delay; }

    const Ref<AudioParam> m_delayTime;
};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::DelayProcessor) \
    static bool isType(const WebCore::AudioProcessor& processor) { return processor.processorType() == WebCore::AudioProcessor::Type::Delay; } \
SPECIALIZE_TYPE_TRAITS_END()
