122 lines
4.3 KiB
C++
122 lines
4.3 KiB
C++
/*
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* Copyright (C) 2010 Google Inc. All rights reserved.
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* Copyright (C) 2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "AudioArray.h"
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#include "ExceptionOr.h"
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#include "FloatPoint3D.h"
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#include <wtf/Ref.h>
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#include <wtf/RefCounted.h>
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namespace WebCore {
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class AudioParam;
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class BaseAudioContext;
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// AudioListener maintains the state of the listener in the audio scene as defined in the OpenAL specification.
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class AudioListener : public RefCounted<AudioListener> {
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public:
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static Ref<AudioListener> create(BaseAudioContext& context)
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{
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return adoptRef(*new AudioListener(context));
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}
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~AudioListener();
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AudioParam& positionX() { return m_positionX.get(); }
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AudioParam& positionY() { return m_positionY.get(); }
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AudioParam& positionZ() { return m_positionZ.get(); }
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AudioParam& forwardX() { return m_forwardX.get(); }
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AudioParam& forwardY() { return m_forwardY.get(); }
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AudioParam& forwardZ() { return m_forwardZ.get(); }
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AudioParam& upX() { return m_upX.get(); }
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AudioParam& upY() { return m_upY.get(); }
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AudioParam& upZ() { return m_upZ.get(); }
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// Position
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ExceptionOr<void> setPosition(float x, float y, float z);
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FloatPoint3D position() const;
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// Orientation
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ExceptionOr<void> setOrientation(float x, float y, float z, float upX, float upY, float upZ);
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FloatPoint3D orientation() const;
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FloatPoint3D upVector() const;
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bool hasSampleAccurateValues() const;
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bool shouldUseARate() const;
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const float* positionXValues(size_t framesToProcess);
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const float* positionYValues(size_t framesToProcess);
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const float* positionZValues(size_t framesToProcess);
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const float* forwardXValues(size_t framesToProcess);
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const float* forwardYValues(size_t framesToProcess);
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const float* forwardZValues(size_t framesToProcess);
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const float* upXValues(size_t framesToProcess);
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const float* upYValues(size_t framesToProcess);
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const float* upZValues(size_t framesToProcess);
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void updateValuesIfNeeded(size_t framesToProcess);
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protected:
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explicit AudioListener(BaseAudioContext&);
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private:
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Ref<AudioParam> m_positionX;
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Ref<AudioParam> m_positionY;
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Ref<AudioParam> m_positionZ;
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Ref<AudioParam> m_forwardX;
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Ref<AudioParam> m_forwardY;
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Ref<AudioParam> m_forwardZ;
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Ref<AudioParam> m_upX;
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Ref<AudioParam> m_upY;
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Ref<AudioParam> m_upZ;
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// Last time that the automations were updated.
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double m_lastUpdateTime { -1 };
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AudioFloatArray m_positionXValues;
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AudioFloatArray m_positionYValues;
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AudioFloatArray m_positionZValues;
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AudioFloatArray m_forwardXValues;
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AudioFloatArray m_forwardYValues;
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AudioFloatArray m_forwardZValues;
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AudioFloatArray m_upXValues;
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AudioFloatArray m_upYValues;
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AudioFloatArray m_upZValues;
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};
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} // namespace WebCore
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