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Side by Side Diff: Source/modules/webaudio/BiquadProcessor.cpp

Issue 20300002: Fix trailing whitespace in .cpp, .h, and .idl files (ex. Source/core) (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 7 years, 5 months ago
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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
(...skipping 13 matching lines...) Expand all
24 24
25 #include "config.h" 25 #include "config.h"
26 26
27 #if ENABLE(WEB_AUDIO) 27 #if ENABLE(WEB_AUDIO)
28 28
29 #include "modules/webaudio/BiquadProcessor.h" 29 #include "modules/webaudio/BiquadProcessor.h"
30 30
31 #include "modules/webaudio/BiquadDSPKernel.h" 31 #include "modules/webaudio/BiquadDSPKernel.h"
32 32
33 namespace WebCore { 33 namespace WebCore {
34 34
35 BiquadProcessor::BiquadProcessor(AudioContext* context, float sampleRate, size_t numberOfChannels, bool autoInitialize) 35 BiquadProcessor::BiquadProcessor(AudioContext* context, float sampleRate, size_t numberOfChannels, bool autoInitialize)
36 : AudioDSPKernelProcessor(sampleRate, numberOfChannels) 36 : AudioDSPKernelProcessor(sampleRate, numberOfChannels)
37 , m_type(LowPass) 37 , m_type(LowPass)
38 , m_parameter1(0) 38 , m_parameter1(0)
39 , m_parameter2(0) 39 , m_parameter2(0)
40 , m_parameter3(0) 40 , m_parameter3(0)
41 , m_parameter4(0) 41 , m_parameter4(0)
42 , m_filterCoefficientsDirty(true) 42 , m_filterCoefficientsDirty(true)
43 , m_hasSampleAccurateValues(false) 43 , m_hasSampleAccurateValues(false)
44 { 44 {
(...skipping 20 matching lines...) Expand all
65 return adoptPtr(new BiquadDSPKernel(this)); 65 return adoptPtr(new BiquadDSPKernel(this));
66 } 66 }
67 67
68 void BiquadProcessor::checkForDirtyCoefficients() 68 void BiquadProcessor::checkForDirtyCoefficients()
69 { 69 {
70 // Deal with smoothing / de-zippering. Start out assuming filter parameters are not changing. 70 // Deal with smoothing / de-zippering. Start out assuming filter parameters are not changing.
71 71
72 // The BiquadDSPKernel objects rely on this value to see if they need to re- compute their internal filter coefficients. 72 // The BiquadDSPKernel objects rely on this value to see if they need to re- compute their internal filter coefficients.
73 m_filterCoefficientsDirty = false; 73 m_filterCoefficientsDirty = false;
74 m_hasSampleAccurateValues = false; 74 m_hasSampleAccurateValues = false;
75 75
76 if (m_parameter1->hasSampleAccurateValues() || m_parameter2->hasSampleAccura teValues() || m_parameter3->hasSampleAccurateValues() || m_parameter4->hasSample AccurateValues()) { 76 if (m_parameter1->hasSampleAccurateValues() || m_parameter2->hasSampleAccura teValues() || m_parameter3->hasSampleAccurateValues() || m_parameter4->hasSample AccurateValues()) {
77 m_filterCoefficientsDirty = true; 77 m_filterCoefficientsDirty = true;
78 m_hasSampleAccurateValues = true; 78 m_hasSampleAccurateValues = true;
79 } else { 79 } else {
80 if (m_hasJustReset) { 80 if (m_hasJustReset) {
81 // Snap to exact values first time after reset, then smooth for subs equent changes. 81 // Snap to exact values first time after reset, then smooth for subs equent changes.
82 m_parameter1->resetSmoothedValue(); 82 m_parameter1->resetSmoothedValue();
83 m_parameter2->resetSmoothedValue(); 83 m_parameter2->resetSmoothedValue();
84 m_parameter3->resetSmoothedValue(); 84 m_parameter3->resetSmoothedValue();
85 m_parameter4->resetSmoothedValue(); 85 m_parameter4->resetSmoothedValue();
(...skipping 10 matching lines...) Expand all
96 } 96 }
97 } 97 }
98 } 98 }
99 99
100 void BiquadProcessor::process(const AudioBus* source, AudioBus* destination, siz e_t framesToProcess) 100 void BiquadProcessor::process(const AudioBus* source, AudioBus* destination, siz e_t framesToProcess)
101 { 101 {
102 if (!isInitialized()) { 102 if (!isInitialized()) {
103 destination->zero(); 103 destination->zero();
104 return; 104 return;
105 } 105 }
106 106
107 checkForDirtyCoefficients(); 107 checkForDirtyCoefficients();
108 108
109 // For each channel of our input, process using the corresponding BiquadDSPK ernel into the output channel. 109 // For each channel of our input, process using the corresponding BiquadDSPK ernel into the output channel.
110 for (unsigned i = 0; i < m_kernels.size(); ++i) 110 for (unsigned i = 0; i < m_kernels.size(); ++i)
111 m_kernels[i]->process(source->channel(i)->data(), destination->channel(i )->mutableData(), framesToProcess); 111 m_kernels[i]->process(source->channel(i)->data(), destination->channel(i )->mutableData(), framesToProcess);
112 } 112 }
113 113
114 void BiquadProcessor::setType(FilterType type) 114 void BiquadProcessor::setType(FilterType type)
115 { 115 {
116 if (type != m_type) { 116 if (type != m_type) {
117 m_type = type; 117 m_type = type;
118 reset(); // The filter state must be reset only if the type has changed. 118 reset(); // The filter state must be reset only if the type has changed.
119 } 119 }
120 } 120 }
121 121
122 void BiquadProcessor::getFrequencyResponse(int nFrequencies, 122 void BiquadProcessor::getFrequencyResponse(int nFrequencies,
123 const float* frequencyHz, 123 const float* frequencyHz,
124 float* magResponse, 124 float* magResponse,
125 float* phaseResponse) 125 float* phaseResponse)
126 { 126 {
127 // Compute the frequency response on a separate temporary kernel 127 // Compute the frequency response on a separate temporary kernel
128 // to avoid interfering with the processing running in the audio 128 // to avoid interfering with the processing running in the audio
129 // thread on the main kernels. 129 // thread on the main kernels.
130 130
131 OwnPtr<BiquadDSPKernel> responseKernel = adoptPtr(new BiquadDSPKernel(this)) ; 131 OwnPtr<BiquadDSPKernel> responseKernel = adoptPtr(new BiquadDSPKernel(this)) ;
132 132
133 responseKernel->getFrequencyResponse(nFrequencies, frequencyHz, magResponse, phaseResponse); 133 responseKernel->getFrequencyResponse(nFrequencies, frequencyHz, magResponse, phaseResponse);
134 } 134 }
135 135
136 } // namespace WebCore 136 } // namespace WebCore
137 137
138 #endif // ENABLE(WEB_AUDIO) 138 #endif // ENABLE(WEB_AUDIO)
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