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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "PeriodicWave.h"
#include "AudioContext.h"
#include "mozilla/dom/PeriodicWaveBinding.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(PeriodicWave, mContext)
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(PeriodicWave, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(PeriodicWave, Release)
PeriodicWave::PeriodicWave(AudioContext* aContext,
const float* aRealData,
const float* aImagData,
const uint32_t aLength,
const bool aDisableNormalization,
ErrorResult& aRv)
: mContext(aContext)
, mDisableNormalization(aDisableNormalization)
{
MOZ_ASSERT(aContext);
// Caller should have checked this and thrown.
MOZ_ASSERT(aLength > 0);
mLength = aLength;
// Copy coefficient data. The two arrays share an allocation.
mCoefficients = new ThreadSharedFloatArrayBufferList(2);
float* buffer = static_cast<float*>(malloc(aLength*sizeof(float)*2));
if (buffer == nullptr) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
PodCopy(buffer, aRealData, aLength);
mCoefficients->SetData(0, buffer, free, buffer);
PodCopy(buffer+aLength, aImagData, aLength);
mCoefficients->SetData(1, nullptr, free, buffer+aLength);
}
size_t
PeriodicWave::SizeOfExcludingThisIfNotShared(MallocSizeOf aMallocSizeOf) const
{
// Not owned:
// - mContext
size_t amount = 0;
if (!mCoefficients->IsShared()) {
amount += mCoefficients->SizeOfIncludingThis(aMallocSizeOf);
}
return amount;
}
size_t
PeriodicWave::SizeOfIncludingThisIfNotShared(MallocSizeOf aMallocSizeOf) const
{
return aMallocSizeOf(this) + SizeOfExcludingThisIfNotShared(aMallocSizeOf);
}
JSObject*
PeriodicWave::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return PeriodicWaveBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla
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