OLD | NEW |
1 /* | 1 /* |
2 * Copyright (C) 2012, Google Inc. All rights reserved. | 2 * Copyright (C) 2012, 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 |
(...skipping 18 matching lines...) Expand all Loading... |
29 #include "platform/audio/AudioBus.h" | 29 #include "platform/audio/AudioBus.h" |
30 #include "platform/heap/Handle.h" | 30 #include "platform/heap/Handle.h" |
31 #include "wtf/HashSet.h" | 31 #include "wtf/HashSet.h" |
32 #include "wtf/Vector.h" | 32 #include "wtf/Vector.h" |
33 | 33 |
34 namespace blink { | 34 namespace blink { |
35 | 35 |
36 class AudioNodeOutput; | 36 class AudioNodeOutput; |
37 class DeferredTaskHandler; | 37 class DeferredTaskHandler; |
38 | 38 |
39 // An AudioSummingJunction represents a point where zero, one, or more AudioNode
Outputs connect. | 39 // An AudioSummingJunction represents a point where zero, one, or more |
| 40 // AudioNodeOutputs connect. |
40 | 41 |
41 class AudioSummingJunction { | 42 class AudioSummingJunction { |
42 public: | 43 public: |
43 virtual ~AudioSummingJunction(); | 44 virtual ~AudioSummingJunction(); |
44 | 45 |
45 // Can be called from any thread. | 46 // Can be called from any thread. |
46 DeferredTaskHandler& deferredTaskHandler() const { | 47 DeferredTaskHandler& deferredTaskHandler() const { |
47 return *m_deferredTaskHandler; | 48 return *m_deferredTaskHandler; |
48 } | 49 } |
49 | 50 |
50 // This must be called whenever we modify m_outputs. | 51 // This must be called whenever we modify m_outputs. |
51 void changedOutputs(); | 52 void changedOutputs(); |
52 | 53 |
53 // This copies m_outputs to m_renderingOutputs. Please see comments for these
lists below. | 54 // This copies m_outputs to m_renderingOutputs. Please see comments for these |
54 // This must be called when we own the context's graph lock in the audio threa
d at the very start or end of the render quantum. | 55 // lists below. This must be called when we own the context's graph lock in |
| 56 // the audio thread at the very start or end of the render quantum. |
55 void updateRenderingState(); | 57 void updateRenderingState(); |
56 | 58 |
57 // Rendering code accesses its version of the current connections here. | 59 // Rendering code accesses its version of the current connections here. |
58 unsigned numberOfRenderingConnections() const { | 60 unsigned numberOfRenderingConnections() const { |
59 return m_renderingOutputs.size(); | 61 return m_renderingOutputs.size(); |
60 } | 62 } |
61 AudioNodeOutput* renderingOutput(unsigned i) { return m_renderingOutputs[i]; } | 63 AudioNodeOutput* renderingOutput(unsigned i) { return m_renderingOutputs[i]; } |
62 bool isConnected() const { return numberOfRenderingConnections() > 0; } | 64 bool isConnected() const { return numberOfRenderingConnections() > 0; } |
63 | 65 |
64 virtual void didUpdate() = 0; | 66 virtual void didUpdate() = 0; |
(...skipping 21 matching lines...) Expand all Loading... |
86 // strong references to owners of these AudioNodeOutput. | 88 // strong references to owners of these AudioNodeOutput. |
87 Vector<AudioNodeOutput*> m_renderingOutputs; | 89 Vector<AudioNodeOutput*> m_renderingOutputs; |
88 | 90 |
89 // m_renderingStateNeedUpdating keeps track if m_outputs is modified. | 91 // m_renderingStateNeedUpdating keeps track if m_outputs is modified. |
90 bool m_renderingStateNeedUpdating; | 92 bool m_renderingStateNeedUpdating; |
91 }; | 93 }; |
92 | 94 |
93 } // namespace blink | 95 } // namespace blink |
94 | 96 |
95 #endif // AudioSummingJunction_h | 97 #endif // AudioSummingJunction_h |
OLD | NEW |