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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 * | 7 * |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
| (...skipping 13 matching lines...) Expand all Loading... |
| 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 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 | 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. | 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 */ | 27 */ |
| 28 | 28 |
| 29 #ifndef ReverbAccumulationBuffer_h | 29 #ifndef ReverbAccumulationBuffer_h |
| 30 #define ReverbAccumulationBuffer_h | 30 #define ReverbAccumulationBuffer_h |
| 31 | 31 |
| 32 #include "platform/PlatformExport.h" | 32 #include "platform/PlatformExport.h" |
| 33 #include "platform/audio/AudioArray.h" | 33 #include "platform/audio/AudioArray.h" |
| 34 #include "wtf/Allocator.h" | 34 #include "platform/wtf/Allocator.h" |
| 35 #include "wtf/Noncopyable.h" | 35 #include "platform/wtf/Noncopyable.h" |
| 36 | 36 |
| 37 namespace blink { | 37 namespace blink { |
| 38 | 38 |
| 39 // ReverbAccumulationBuffer is a circular delay buffer with one client reading | 39 // ReverbAccumulationBuffer is a circular delay buffer with one client reading |
| 40 // from it and multiple clients writing/accumulating to it at different delay | 40 // from it and multiple clients writing/accumulating to it at different delay |
| 41 // offsets from the read position. The read operation will zero the memory | 41 // offsets from the read position. The read operation will zero the memory |
| 42 // just read from the buffer, so it will be ready for accumulation the next | 42 // just read from the buffer, so it will be ready for accumulation the next |
| 43 // time around. | 43 // time around. |
| 44 class PLATFORM_EXPORT ReverbAccumulationBuffer { | 44 class PLATFORM_EXPORT ReverbAccumulationBuffer { |
| 45 DISALLOW_NEW(); | 45 DISALLOW_NEW(); |
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| 71 | 71 |
| 72 private: | 72 private: |
| 73 AudioFloatArray m_buffer; | 73 AudioFloatArray m_buffer; |
| 74 size_t m_readIndex; | 74 size_t m_readIndex; |
| 75 size_t m_readTimeFrame; // for debugging (frame on continuous timeline) | 75 size_t m_readTimeFrame; // for debugging (frame on continuous timeline) |
| 76 }; | 76 }; |
| 77 | 77 |
| 78 } // namespace blink | 78 } // namespace blink |
| 79 | 79 |
| 80 #endif // ReverbAccumulationBuffer_h | 80 #endif // ReverbAccumulationBuffer_h |
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