WaveShaperNode.cpp [plain text]
#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());
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;
}
}
#endif // ENABLE(WEB_AUDIO)