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Diffstat (limited to 'dom/media/webaudio/AudioListener.h')
-rw-r--r-- | dom/media/webaudio/AudioListener.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/dom/media/webaudio/AudioListener.h b/dom/media/webaudio/AudioListener.h new file mode 100644 index 000000000..e3eaf1ca4 --- /dev/null +++ b/dom/media/webaudio/AudioListener.h @@ -0,0 +1,133 @@ +/* -*- 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/. */ + +#ifndef AudioListener_h_ +#define AudioListener_h_ + +#include "nsWrapperCache.h" +#include "nsCycleCollectionParticipant.h" +#include "mozilla/Attributes.h" +#include "ThreeDPoint.h" +#include "AudioContext.h" +#include "PannerNode.h" +#include "WebAudioUtils.h" +#include "js/TypeDecls.h" +#include "mozilla/MemoryReporting.h" + +namespace mozilla { + +namespace dom { + +class AudioListener final : public nsWrapperCache +{ +public: + explicit AudioListener(AudioContext* aContext); + + NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(AudioListener) + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(AudioListener) + + size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const; + + AudioContext* GetParentObject() const + { + return mContext; + } + + JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override; + + double DopplerFactor() const + { + return mDopplerFactor; + } + void SetDopplerFactor(double aDopplerFactor) + { + if (WebAudioUtils::FuzzyEqual(mDopplerFactor, aDopplerFactor)) { + return; + } + mDopplerFactor = aDopplerFactor; + SendDoubleParameterToStream(PannerNode::LISTENER_DOPPLER_FACTOR, mDopplerFactor); + } + + double SpeedOfSound() const + { + return mSpeedOfSound; + } + void SetSpeedOfSound(double aSpeedOfSound) + { + if (WebAudioUtils::FuzzyEqual(mSpeedOfSound, aSpeedOfSound)) { + return; + } + mSpeedOfSound = aSpeedOfSound; + SendDoubleParameterToStream(PannerNode::LISTENER_SPEED_OF_SOUND, mSpeedOfSound); + } + + void SetPosition(double aX, double aY, double aZ) + { + if (WebAudioUtils::FuzzyEqual(mPosition.x, aX) && + WebAudioUtils::FuzzyEqual(mPosition.y, aY) && + WebAudioUtils::FuzzyEqual(mPosition.z, aZ)) { + return; + } + mPosition.x = aX; + mPosition.y = aY; + mPosition.z = aZ; + SendThreeDPointParameterToStream(PannerNode::LISTENER_POSITION, mPosition); + } + + const ThreeDPoint& Position() const + { + return mPosition; + } + + void SetOrientation(double aX, double aY, double aZ, + double aXUp, double aYUp, double aZUp); + + const ThreeDPoint& Velocity() const + { + return mVelocity; + } + + void SetVelocity(double aX, double aY, double aZ) + { + if (WebAudioUtils::FuzzyEqual(mVelocity.x, aX) && + WebAudioUtils::FuzzyEqual(mVelocity.y, aY) && + WebAudioUtils::FuzzyEqual(mVelocity.z, aZ)) { + return; + } + mVelocity.x = aX; + mVelocity.y = aY; + mVelocity.z = aZ; + SendThreeDPointParameterToStream(PannerNode::LISTENER_VELOCITY, mVelocity); + UpdatePannersVelocity(); + } + + void RegisterPannerNode(PannerNode* aPannerNode); + void UnregisterPannerNode(PannerNode* aPannerNode); + +private: + ~AudioListener() {} + + void SendDoubleParameterToStream(uint32_t aIndex, double aValue); + void SendThreeDPointParameterToStream(uint32_t aIndex, const ThreeDPoint& aValue); + void UpdatePannersVelocity(); + +private: + friend class PannerNode; + RefPtr<AudioContext> mContext; + ThreeDPoint mPosition; + ThreeDPoint mFrontVector; + ThreeDPoint mRightVector; + ThreeDPoint mVelocity; + double mDopplerFactor; + double mSpeedOfSound; + nsTArray<WeakPtr<PannerNode> > mPanners; +}; + +} // namespace dom +} // namespace mozilla + +#endif + |