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/*
* Copyright (C) 2010, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_PANNER_NODE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_PANNER_NODE_H_
#include "third_party/blink/renderer/modules/webaudio/audio_node.h"
namespace blink {
class AudioListener;
class AudioParam;
class BaseAudioContext;
class PannerHandler;
class PannerOptions;
class V8DistanceModelType;
class V8PanningModelType;
// PannerNode is an AudioNode with one input and one output.
// It positions a sound in 3D space, with the exact effect dependent on the
// panning model. It has a position and an orientation in 3D space which is
// relative to the position and orientation of the context's AudioListener. A
// distance effect will attenuate the gain as the position moves away from the
// listener. A cone effect will attenuate the gain as the orientation moves
// away from the listener. All of these effects follow the OpenAL specification
// very closely.
class PannerNode final : public AudioNode {
DEFINE_WRAPPERTYPEINFO();
public:
static PannerNode* Create(BaseAudioContext&, ExceptionState&);
static PannerNode* Create(BaseAudioContext*,
const PannerOptions*,
ExceptionState&);
PannerHandler& GetPannerHandler() const;
explicit PannerNode(BaseAudioContext&);
void Trace(Visitor*) const override;
// Uses a 3D cartesian coordinate system
AudioParam* positionX() const { return position_x_.Get(); }
AudioParam* positionY() const { return position_y_.Get(); }
AudioParam* positionZ() const { return position_z_.Get(); }
AudioParam* orientationX() const { return orientation_x_.Get(); }
AudioParam* orientationY() const { return orientation_y_.Get(); }
AudioParam* orientationZ() const { return orientation_z_.Get(); }
V8PanningModelType panningModel() const;
void setPanningModel(const V8PanningModelType&);
void setPosition(float x, float y, float z, ExceptionState&);
void setOrientation(float x, float y, float z, ExceptionState&);
V8DistanceModelType distanceModel() const;
void setDistanceModel(const V8DistanceModelType&);
double refDistance() const;
void setRefDistance(double, ExceptionState&);
double maxDistance() const;
void setMaxDistance(double, ExceptionState&);
double rolloffFactor() const;
void setRolloffFactor(double, ExceptionState&);
double coneInnerAngle() const;
void setConeInnerAngle(double);
double coneOuterAngle() const;
void setConeOuterAngle(double);
double coneOuterGain() const;
void setConeOuterGain(double, ExceptionState&);
// InspectorHelperMixin
void ReportDidCreate() final;
void ReportWillBeDestroyed() final;
private:
Member<AudioParam> position_x_;
Member<AudioParam> position_y_;
Member<AudioParam> position_z_;
Member<AudioParam> orientation_x_;
Member<AudioParam> orientation_y_;
Member<AudioParam> orientation_z_;
// This listener is held alive here to allow referencing it from PannerHandler
// via weak reference.
Member<AudioListener> listener_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_PANNER_NODE_H_
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