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Side by Side Diff: third_party/WebKit/Source/modules/webaudio/WaveShaperDSPKernel.h

Issue 2389253002: reflow comments in modules/{webaudio,vr} (Closed)
Patch Set: . Created 4 years, 2 months ago
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1 /* 1 /*
2 * Copyright (C) 2011, Google Inc. All rights reserved. 2 * Copyright (C) 2011, 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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30 #include "platform/audio/AudioArray.h" 30 #include "platform/audio/AudioArray.h"
31 #include "platform/audio/AudioDSPKernel.h" 31 #include "platform/audio/AudioDSPKernel.h"
32 #include "platform/audio/DownSampler.h" 32 #include "platform/audio/DownSampler.h"
33 #include "platform/audio/UpSampler.h" 33 #include "platform/audio/UpSampler.h"
34 #include <memory> 34 #include <memory>
35 35
36 namespace blink { 36 namespace blink {
37 37
38 class WaveShaperProcessor; 38 class WaveShaperProcessor;
39 39
40 // WaveShaperDSPKernel is an AudioDSPKernel and is responsible for non-linear di stortion on one channel. 40 // WaveShaperDSPKernel is an AudioDSPKernel and is responsible for non-linear
41 // distortion on one channel.
41 42
42 class WaveShaperDSPKernel final : public AudioDSPKernel { 43 class WaveShaperDSPKernel final : public AudioDSPKernel {
43 public: 44 public:
44 explicit WaveShaperDSPKernel(WaveShaperProcessor*); 45 explicit WaveShaperDSPKernel(WaveShaperProcessor*);
45 46
46 // AudioDSPKernel 47 // AudioDSPKernel
47 void process(const float* source, 48 void process(const float* source,
48 float* dest, 49 float* dest,
49 size_t framesToProcess) override; 50 size_t framesToProcess) override;
50 void reset() override; 51 void reset() override;
51 double tailTime() const override { return 0; } 52 double tailTime() const override { return 0; }
52 double latencyTime() const override; 53 double latencyTime() const override;
53 54
54 // Oversampling requires more resources, so let's only allocate them if needed . 55 // Oversampling requires more resources, so let's only allocate them if
56 // needed.
55 void lazyInitializeOversampling(); 57 void lazyInitializeOversampling();
56 58
57 protected: 59 protected:
58 // Apply the shaping curve. 60 // Apply the shaping curve.
59 void processCurve(const float* source, float* dest, size_t framesToProcess); 61 void processCurve(const float* source, float* dest, size_t framesToProcess);
60 62
61 // Use up-sampling, process at the higher sample-rate, then down-sample. 63 // Use up-sampling, process at the higher sample-rate, then down-sample.
62 void processCurve2x(const float* source, float* dest, size_t framesToProcess); 64 void processCurve2x(const float* source, float* dest, size_t framesToProcess);
63 void processCurve4x(const float* source, float* dest, size_t framesToProcess); 65 void processCurve4x(const float* source, float* dest, size_t framesToProcess);
64 66
65 WaveShaperProcessor* getWaveShaperProcessor() { 67 WaveShaperProcessor* getWaveShaperProcessor() {
66 return static_cast<WaveShaperProcessor*>(processor()); 68 return static_cast<WaveShaperProcessor*>(processor());
67 } 69 }
68 70
69 // Oversampling. 71 // Oversampling.
70 std::unique_ptr<AudioFloatArray> m_tempBuffer; 72 std::unique_ptr<AudioFloatArray> m_tempBuffer;
71 std::unique_ptr<AudioFloatArray> m_tempBuffer2; 73 std::unique_ptr<AudioFloatArray> m_tempBuffer2;
72 std::unique_ptr<UpSampler> m_upSampler; 74 std::unique_ptr<UpSampler> m_upSampler;
73 std::unique_ptr<DownSampler> m_downSampler; 75 std::unique_ptr<DownSampler> m_downSampler;
74 std::unique_ptr<UpSampler> m_upSampler2; 76 std::unique_ptr<UpSampler> m_upSampler2;
75 std::unique_ptr<DownSampler> m_downSampler2; 77 std::unique_ptr<DownSampler> m_downSampler2;
76 }; 78 };
77 79
78 } // namespace blink 80 } // namespace blink
79 81
80 #endif // WaveShaperDSPKernel_h 82 #endif // WaveShaperDSPKernel_h
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