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 "FloatPoint3D.h"
33#include <wtf/PassRefPtr.h>
34#include <wtf/RefCounted.h>
35
36namespace WebCore {
37
38// AudioListener maintains the state of the listener in the audio scene as defined in the OpenAL specification.
39
40class AudioListener : public RefCounted<AudioListener> {
41public:
42    static PassRefPtr<AudioListener> create()
43    {
44        return adoptRef(new AudioListener());
45    }
46
47    // Position
48    void setPosition(double x, double y, double z) { setPosition(FloatPoint3D(x, y, z)); }
49    void setPosition(const FloatPoint3D &position) { m_position = position; }
50    const FloatPoint3D& position() const { return m_position; }
51
52    // Orientation
53    void setOrientation(double x, double y, double z, double upX, double upY, double upZ)
54    {
55        setOrientation(FloatPoint3D(x, y, z));
56        setUpVector(FloatPoint3D(upX, upY, upZ));
57    }
58    void setOrientation(const FloatPoint3D &orientation) { m_orientation = orientation; }
59    const FloatPoint3D& orientation() const { return m_orientation; }
60
61    // Up-vector
62    void setUpVector(const FloatPoint3D &upVector) { m_upVector = upVector; }
63    const FloatPoint3D& upVector() const { return m_upVector; }
64
65    // Velocity
66    void setVelocity(double x, double y, double z) { setVelocity(FloatPoint3D(x, y, z)); }
67    void setVelocity(const FloatPoint3D &velocity) { m_velocity = velocity; }
68    const FloatPoint3D& velocity() const { return m_velocity; }
69
70    // Doppler factor
71    void setDopplerFactor(double dopplerFactor) { m_dopplerFactor = dopplerFactor; }
72    double dopplerFactor() const { return m_dopplerFactor; }
73
74    // Speed of sound
75    void setSpeedOfSound(double speedOfSound) { m_speedOfSound = speedOfSound; }
76    double speedOfSound() const { return m_speedOfSound; }
77
78private:
79    AudioListener();
80
81    // Position / Orientation
82    FloatPoint3D m_position;
83    FloatPoint3D m_orientation;
84    FloatPoint3D m_upVector;
85
86    FloatPoint3D m_velocity;
87
88    double m_dopplerFactor;
89    double m_speedOfSound;
90};
91
92} // WebCore
93
94#endif // AudioListener_h
95