Source/WebCore/platform/mock/MockAudioDestinationCocoa.h

/*
 * Copyright (C) 2019 Apple 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

#if ENABLE(WEB_AUDIO) && PLATFORM(COCOA)

#include "AudioDestinationCocoa.h"
#include <wtf/RunLoop.h>
#include <wtf/WorkQueue.h>

namespace WebCore {

class AudioIOCallback;

class MockAudioDestinationCocoa final : public AudioDestinationCocoa {
    WTF_MAKE_FAST_ALLOCATED;
public:
    static std::unique_ptr<AudioDestination> create(AudioIOCallback& callback, float sampleRate) { return makeUnique<MockAudioDestinationCocoa>(callback, sampleRate); }
    WEBCORE_EXPORT MockAudioDestinationCocoa(AudioIOCallback&, float sampleRate);
    WEBCORE_EXPORT virtual ~MockAudioDestinationCocoa();

private:
    void start() final;
    void stop() final;

    void tick();

    Ref<WorkQueue> m_workQueue;
    RunLoop::Timer<MockAudioDestinationCocoa> m_timer;
    uint32_t m_numberOfFramesToProcess { 384 };
};

} // namespace WebCore

#endif // ENABLE(WEB_AUDIO) && PLATFORM(COCOA)