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https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
ee917522f4
Copy the periodicWave data into a shareable buffer. Add a SetBuffer call to send the buffer data to the OscillatorNodeEngine. Call into blink's PeriodicWave implementation to generate bandlimited tables bracketing the desired frequency and interpolate the output data from them. Change the PeriodicWave constructor to only take one length, since both arrays must be the same size. Change OscillatorNode's SetType to throw INVALID_STATE instead of NOT_IMPLEMENTED if js tries to assign type = 'custom' directly.
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "PeriodicWave.h"
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#include "AudioContext.h"
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#include "mozilla/dom/PeriodicWaveBinding.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(PeriodicWave, mContext)
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(PeriodicWave, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(PeriodicWave, Release)
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PeriodicWave::PeriodicWave(AudioContext* aContext,
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const float* aRealData,
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const float* aImagData,
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const uint32_t aLength,
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ErrorResult& aRv)
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: mContext(aContext)
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{
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MOZ_ASSERT(aContext);
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SetIsDOMBinding();
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// Caller should have checked this and thrown.
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MOZ_ASSERT(aLength > 0);
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MOZ_ASSERT(aLength <= 4096);
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mLength = aLength;
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// Copy coefficient data. The two arrays share an allocation.
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mCoefficients = new ThreadSharedFloatArrayBufferList(2);
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float* buffer = static_cast<float*>(malloc(aLength*sizeof(float)*2));
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if (buffer == nullptr) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return;
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}
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PodCopy(buffer, aRealData, aLength);
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mCoefficients->SetData(0, buffer, buffer);
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PodCopy(buffer+aLength, aImagData, aLength);
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mCoefficients->SetData(1, nullptr, buffer+aLength);
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}
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JSObject*
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PeriodicWave::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope)
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{
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return PeriodicWaveBinding::Wrap(aCx, aScope, this);
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}
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} // namespace dom
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} // namespace mozilla
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