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/*
* Copyright (C) 2011, 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 "WaveShaperNode.h"
#if ENABLE(WEB_AUDIO)
#include "AudioContext.h"
#include <wtf/MainThread.h>
namespace WebCore {
WaveShaperNode::WaveShaperNode(AudioContext& context)
: AudioBasicProcessorNode(context, context.sampleRate())
{
m_processor = std::make_unique<WaveShaperProcessor>(context.sampleRate(), 1);
setNodeType(NodeTypeWaveShaper);
initialize();
}
void WaveShaperNode::setCurve(Float32Array& curve)
{
ASSERT(isMainThread());
waveShaperProcessor()->setCurve(&curve);
}
Float32Array* WaveShaperNode::curve()
{
return waveShaperProcessor()->curve();
}
static inline WaveShaperProcessor::OverSampleType processorType(WaveShaperNode::OverSampleType type)
{
switch (type) {
case WaveShaperNode::OverSampleType::None:
return WaveShaperProcessor::OverSampleNone;
case WaveShaperNode::OverSampleType::_2x:
return WaveShaperProcessor::OverSample2x;
case WaveShaperNode::OverSampleType::_4x:
return WaveShaperProcessor::OverSample4x;
}
ASSERT_NOT_REACHED();
return WaveShaperProcessor::OverSampleNone;
}
void WaveShaperNode::setOversample(OverSampleType type)
{
ASSERT(isMainThread());
// Synchronize with any graph changes or changes to channel configuration.
AudioContext::AutoLocker contextLocker(context());
waveShaperProcessor()->setOversample(processorType(type));
}
auto WaveShaperNode::oversample() const -> OverSampleType
{
switch (const_cast<WaveShaperNode*>(this)->waveShaperProcessor()->oversample()) {
case WaveShaperProcessor::OverSampleNone:
return OverSampleType::None;
case WaveShaperProcessor::OverSample2x:
return OverSampleType::_2x;
case WaveShaperProcessor::OverSample4x:
return OverSampleType::_4x;
}
ASSERT_NOT_REACHED();
return OverSampleType::None;
}
} // namespace WebCore
#endif // ENABLE(WEB_AUDIO)