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29 #include "WaveShaperProcessor.h"
31 #include "WaveShaperDSPKernel.h"
35 WaveShaperProcessor::WaveShaperProcessor(double sampleRate, size_t numberOfChannels)
36 : AudioDSPKernelProcessor(sampleRate, numberOfChannels)
40 WaveShaperProcessor::~WaveShaperProcessor()
46 PassOwnPtr<AudioDSPKernel> WaveShaperProcessor::createKernel()
48 return adoptPtr(new WaveShaperDSPKernel(this));
51 void WaveShaperProcessor::setCurve(Float32Array* curve)
53 // This synchronizes with process().
54 MutexLocker processLocker(m_processLock);
59 void WaveShaperProcessor::process(AudioBus* source, AudioBus* destination, size_t framesToProcess)
61 if (!isInitialized()) {
66 // The audio thread can't block on this lock, so we call tryLock() instead.
67 // Careful - this is a tryLock() and not an autolocker, so we must unlock() before every return.
68 if (m_processLock.tryLock()) {
69 // For each channel of our input, process using the corresponding WaveShaperDSPKernel into the output channel.
70 for (unsigned i = 0; i < m_kernels.size(); ++i)
71 m_kernels[i]->process(source->channel(i)->data(), destination->channel(i)->data(), framesToProcess);
73 m_processLock.unlock();
75 // Too bad - the tryLock() failed. We must be in the middle of a setCurve() call.
80 } // namespace WebCore
82 #endif // ENABLE(WEB_AUDIO)