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1 /* | 1 /* |
2 * Copyright (C) 2010, Google Inc. All rights reserved. | 2 * Copyright (C) 2010, Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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29 #include "platform/audio/Cone.h" | 29 #include "platform/audio/Cone.h" |
30 #include "platform/audio/Distance.h" | 30 #include "platform/audio/Distance.h" |
31 #include "platform/audio/HRTFDatabaseLoader.h" | 31 #include "platform/audio/HRTFDatabaseLoader.h" |
32 #include "platform/audio/Panner.h" | 32 #include "platform/audio/Panner.h" |
33 #include "modules/webaudio/AudioListener.h" | 33 #include "modules/webaudio/AudioListener.h" |
34 #include "modules/webaudio/AudioNode.h" | 34 #include "modules/webaudio/AudioNode.h" |
35 #include "platform/geometry/FloatPoint3D.h" | 35 #include "platform/geometry/FloatPoint3D.h" |
36 #include "wtf/HashMap.h" | 36 #include "wtf/HashMap.h" |
37 #include "wtf/OwnPtr.h" | 37 #include "wtf/OwnPtr.h" |
38 | 38 |
39 namespace WebCore { | 39 namespace blink { |
40 | 40 |
41 // PannerNode is an AudioNode with one input and one output. | 41 // PannerNode is an AudioNode with one input and one output. |
42 // It positions a sound in 3D space, with the exact effect dependent on the pann
ing model. | 42 // It positions a sound in 3D space, with the exact effect dependent on the pann
ing model. |
43 // It has a position and an orientation in 3D space which is relative to the pos
ition and orientation of the context's AudioListener. | 43 // It has a position and an orientation in 3D space which is relative to the pos
ition and orientation of the context's AudioListener. |
44 // A distance effect will attenuate the gain as the position moves away from the
listener. | 44 // A distance effect will attenuate the gain as the position moves away from the
listener. |
45 // A cone effect will attenuate the gain as the orientation moves away from the
listener. | 45 // A cone effect will attenuate the gain as the orientation moves away from the
listener. |
46 // All of these effects follow the OpenAL specification very closely. | 46 // All of these effects follow the OpenAL specification very closely. |
47 | 47 |
48 class PannerNode FINAL : public AudioNode { | 48 class PannerNode FINAL : public AudioNode { |
49 public: | 49 public: |
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157 | 157 |
158 RefPtr<HRTFDatabaseLoader> m_hrtfDatabaseLoader; | 158 RefPtr<HRTFDatabaseLoader> m_hrtfDatabaseLoader; |
159 | 159 |
160 // AudioContext's connection count | 160 // AudioContext's connection count |
161 unsigned m_connectionCount; | 161 unsigned m_connectionCount; |
162 | 162 |
163 // Synchronize process() with setting of the panning model, source's locatio
n information, listener, distance parameters and sound cones. | 163 // Synchronize process() with setting of the panning model, source's locatio
n information, listener, distance parameters and sound cones. |
164 mutable Mutex m_processLock; | 164 mutable Mutex m_processLock; |
165 }; | 165 }; |
166 | 166 |
167 } // namespace WebCore | 167 } // namespace blink |
168 | 168 |
169 #endif // PannerNode_h | 169 #endif // PannerNode_h |
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