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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef AudioListener_h
     30 #define AudioListener_h
     31 
     32 #include "bindings/v8/ScriptWrappable.h"
     33 #include "core/platform/graphics/FloatPoint3D.h"
     34 #include "wtf/PassRefPtr.h"
     35 #include "wtf/RefCounted.h"
     36 
     37 namespace WebCore {
     38 
     39 // AudioListener maintains the state of the listener in the audio scene as defined in the OpenAL specification.
     40 
     41 class AudioListener : public ScriptWrappable, public RefCounted<AudioListener> {
     42 public:
     43     static PassRefPtr<AudioListener> create()
     44     {
     45         return adoptRef(new AudioListener());
     46     }
     47 
     48     // Position
     49     void setPosition(float x, float y, float z) { setPosition(FloatPoint3D(x, y, z)); }
     50     void setPosition(const FloatPoint3D &position) { m_position = position; }
     51     const FloatPoint3D& position() const { return m_position; }
     52 
     53     // Orientation
     54     void setOrientation(float x, float y, float z, float upX, float upY, float upZ)
     55     {
     56         setOrientation(FloatPoint3D(x, y, z));
     57         setUpVector(FloatPoint3D(upX, upY, upZ));
     58     }
     59     void setOrientation(const FloatPoint3D &orientation) { m_orientation = orientation; }
     60     const FloatPoint3D& orientation() const { return m_orientation; }
     61 
     62     // Up-vector
     63     void setUpVector(const FloatPoint3D &upVector) { m_upVector = upVector; }
     64     const FloatPoint3D& upVector() const { return m_upVector; }
     65 
     66     // Velocity
     67     void setVelocity(float x, float y, float z) { setVelocity(FloatPoint3D(x, y, z)); }
     68     void setVelocity(const FloatPoint3D &velocity) { m_velocity = velocity; }
     69     const FloatPoint3D& velocity() const { return m_velocity; }
     70 
     71     // Doppler factor
     72     void setDopplerFactor(double dopplerFactor) { m_dopplerFactor = dopplerFactor; }
     73     double dopplerFactor() const { return m_dopplerFactor; }
     74 
     75     // Speed of sound
     76     void setSpeedOfSound(double speedOfSound) { m_speedOfSound = speedOfSound; }
     77     double speedOfSound() const { return m_speedOfSound; }
     78 
     79 private:
     80     AudioListener();
     81 
     82     // Position / Orientation
     83     FloatPoint3D m_position;
     84     FloatPoint3D m_orientation;
     85     FloatPoint3D m_upVector;
     86 
     87     FloatPoint3D m_velocity;
     88 
     89     double m_dopplerFactor;
     90     double m_speedOfSound;
     91 };
     92 
     93 } // WebCore
     94 
     95 #endif // AudioListener_h
     96