blob: c5a55c73436dc0c827fe581b4ab9bb64dabeee56 [file] [log] [blame]
/*
* 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"
#include "public/platform/WebAudioBus.h"
#if ENABLE(WEB_AUDIO)
#include "platform/audio/AudioBus.h"
#else
#include "wtf/ThreadSafeRefCounted.h"
namespace WebCore {
class AudioBus : public ThreadSafeRefCounted<AudioBus> {
};
} // namespace WebCore
#endif
#include "wtf/PassRefPtr.h"
#include "wtf/RefPtr.h"
using namespace WebCore;
namespace WebKit {
class WebAudioBusPrivate : public AudioBus {
};
void WebAudioBus::initialize(unsigned numberOfChannels, size_t length, double sampleRate)
{
#if ENABLE(WEB_AUDIO)
RefPtr<AudioBus> audioBus = AudioBus::create(numberOfChannels, length);
audioBus->setSampleRate(sampleRate);
if (m_private)
(static_cast<AudioBus*>(m_private))->deref();
audioBus->ref();
m_private = static_cast<WebAudioBusPrivate*>(audioBus.get());
#else
ASSERT_NOT_REACHED();
#endif
}
void WebAudioBus::resizeSmaller(size_t newLength)
{
#if ENABLE(WEB_AUDIO)
ASSERT(m_private);
if (m_private) {
ASSERT(newLength <= length());
m_private->resizeSmaller(newLength);
}
#else
ASSERT_NOT_REACHED();
#endif
}
void WebAudioBus::reset()
{
#if ENABLE(WEB_AUDIO)
if (m_private) {
(static_cast<AudioBus*>(m_private))->deref();
m_private = 0;
}
#else
ASSERT_NOT_REACHED();
#endif
}
unsigned WebAudioBus::numberOfChannels() const
{
#if ENABLE(WEB_AUDIO)
if (!m_private)
return 0;
return m_private->numberOfChannels();
#else
ASSERT_NOT_REACHED();
return 0;
#endif
}
size_t WebAudioBus::length() const
{
#if ENABLE(WEB_AUDIO)
if (!m_private)
return 0;
return m_private->length();
#else
ASSERT_NOT_REACHED();
return 0;
#endif
}
double WebAudioBus::sampleRate() const
{
#if ENABLE(WEB_AUDIO)
if (!m_private)
return 0;
return m_private->sampleRate();
#else
ASSERT_NOT_REACHED();
return 0;
#endif
}
float* WebAudioBus::channelData(unsigned channelIndex)
{
#if ENABLE(WEB_AUDIO)
if (!m_private)
return 0;
ASSERT(channelIndex < numberOfChannels());
return m_private->channel(channelIndex)->mutableData();
#else
ASSERT_NOT_REACHED();
return 0;
#endif
}
PassRefPtr<AudioBus> WebAudioBus::release()
{
#if ENABLE(WEB_AUDIO)
RefPtr<AudioBus> audioBus(adoptRef(static_cast<AudioBus*>(m_private)));
m_private = 0;
return audioBus;
#else
ASSERT_NOT_REACHED();
return 0;
#endif
}
} // namespace WebKit