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Side by Side Diff: third_party/WebKit/Source/modules/webaudio/AudioBasicProcessorHandler.cpp

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) 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 68 matching lines...) Expand 10 before | Expand all | Expand 10 after
79 79
80 void AudioBasicProcessorHandler::process(size_t framesToProcess) { 80 void AudioBasicProcessorHandler::process(size_t framesToProcess) {
81 AudioBus* destinationBus = output(0).bus(); 81 AudioBus* destinationBus = output(0).bus();
82 82
83 if (!isInitialized() || !processor() || 83 if (!isInitialized() || !processor() ||
84 processor()->numberOfChannels() != numberOfChannels()) { 84 processor()->numberOfChannels() != numberOfChannels()) {
85 destinationBus->zero(); 85 destinationBus->zero();
86 } else { 86 } else {
87 AudioBus* sourceBus = input(0).bus(); 87 AudioBus* sourceBus = input(0).bus();
88 88
89 // FIXME: if we take "tail time" into account, then we can avoid calling pro cessor()->process() once the tail dies down. 89 // FIXME: if we take "tail time" into account, then we can avoid calling
90 // processor()->process() once the tail dies down.
90 if (!input(0).isConnected()) 91 if (!input(0).isConnected())
91 sourceBus->zero(); 92 sourceBus->zero();
92 93
93 processor()->process(sourceBus, destinationBus, framesToProcess); 94 processor()->process(sourceBus, destinationBus, framesToProcess);
94 } 95 }
95 } 96 }
96 97
97 // Nice optimization in the very common case allowing for "in-place" processing 98 // Nice optimization in the very common case allowing for "in-place" processing
98 void AudioBasicProcessorHandler::pullInputs(size_t framesToProcess) { 99 void AudioBasicProcessorHandler::pullInputs(size_t framesToProcess) {
99 // Render input stream - suggest to the input to render directly into output b us for in-place processing in process() if possible. 100 // Render input stream - suggest to the input to render directly into output
101 // bus for in-place processing in process() if possible.
100 input(0).pull(output(0).bus(), framesToProcess); 102 input(0).pull(output(0).bus(), framesToProcess);
101 } 103 }
102 104
103 // As soon as we know the channel count of our input, we can lazily initialize. 105 // As soon as we know the channel count of our input, we can lazily initialize.
104 // Sometimes this may be called more than once with different channel counts, in which case we must safely 106 // Sometimes this may be called more than once with different channel counts, in
105 // uninitialize and then re-initialize with the new channel count. 107 // which case we must safely uninitialize and then re-initialize with the new
108 // channel count.
106 void AudioBasicProcessorHandler::checkNumberOfChannelsForInput( 109 void AudioBasicProcessorHandler::checkNumberOfChannelsForInput(
107 AudioNodeInput* input) { 110 AudioNodeInput* input) {
108 DCHECK(context()->isAudioThread()); 111 DCHECK(context()->isAudioThread());
109 ASSERT(context()->isGraphOwner()); 112 ASSERT(context()->isGraphOwner());
110 113
111 DCHECK_EQ(input, &this->input(0)); 114 DCHECK_EQ(input, &this->input(0));
112 if (input != &this->input(0)) 115 if (input != &this->input(0))
113 return; 116 return;
114 117
115 DCHECK(processor()); 118 DCHECK(processor());
116 if (!processor()) 119 if (!processor())
117 return; 120 return;
118 121
119 unsigned numberOfChannels = input->numberOfChannels(); 122 unsigned numberOfChannels = input->numberOfChannels();
120 123
121 if (isInitialized() && numberOfChannels != output(0).numberOfChannels()) { 124 if (isInitialized() && numberOfChannels != output(0).numberOfChannels()) {
122 // We're already initialized but the channel count has changed. 125 // We're already initialized but the channel count has changed.
123 uninitialize(); 126 uninitialize();
124 } 127 }
125 128
126 if (!isInitialized()) { 129 if (!isInitialized()) {
127 // This will propagate the channel count to any nodes connected further down the chain... 130 // This will propagate the channel count to any nodes connected further down
131 // the chain...
128 output(0).setNumberOfChannels(numberOfChannels); 132 output(0).setNumberOfChannels(numberOfChannels);
129 133
130 // Re-initialize the processor with the new channel count. 134 // Re-initialize the processor with the new channel count.
131 processor()->setNumberOfChannels(numberOfChannels); 135 processor()->setNumberOfChannels(numberOfChannels);
132 initialize(); 136 initialize();
133 } 137 }
134 138
135 AudioHandler::checkNumberOfChannelsForInput(input); 139 AudioHandler::checkNumberOfChannelsForInput(input);
136 } 140 }
137 141
138 unsigned AudioBasicProcessorHandler::numberOfChannels() { 142 unsigned AudioBasicProcessorHandler::numberOfChannels() {
139 return output(0).numberOfChannels(); 143 return output(0).numberOfChannels();
140 } 144 }
141 145
142 double AudioBasicProcessorHandler::tailTime() const { 146 double AudioBasicProcessorHandler::tailTime() const {
143 return m_processor->tailTime(); 147 return m_processor->tailTime();
144 } 148 }
145 149
146 double AudioBasicProcessorHandler::latencyTime() const { 150 double AudioBasicProcessorHandler::latencyTime() const {
147 return m_processor->latencyTime(); 151 return m_processor->latencyTime();
148 } 152 }
149 153
150 } // namespace blink 154 } // namespace blink
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