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Side by Side Diff: third_party/WebKit/Source/modules/webaudio/AudioBuffer.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 * 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
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170 } 170 }
171 171
172 AudioBuffer::AudioBuffer(unsigned numberOfChannels, 172 AudioBuffer::AudioBuffer(unsigned numberOfChannels,
173 size_t numberOfFrames, 173 size_t numberOfFrames,
174 float sampleRate) 174 float sampleRate)
175 : m_sampleRate(sampleRate), m_length(numberOfFrames) { 175 : m_sampleRate(sampleRate), m_length(numberOfFrames) {
176 m_channels.reserveCapacity(numberOfChannels); 176 m_channels.reserveCapacity(numberOfChannels);
177 177
178 for (unsigned i = 0; i < numberOfChannels; ++i) { 178 for (unsigned i = 0; i < numberOfChannels; ++i) {
179 DOMFloat32Array* channelDataArray = createFloat32ArrayOrNull(m_length); 179 DOMFloat32Array* channelDataArray = createFloat32ArrayOrNull(m_length);
180 // If the channel data array could not be created, just return. The caller w ill need to 180 // If the channel data array could not be created, just return. The caller
181 // check that the desired number of channels were created. 181 // will need to check that the desired number of channels were created.
182 if (!channelDataArray) 182 if (!channelDataArray)
183 return; 183 return;
184 184
185 channelDataArray->setNeuterable(false); 185 channelDataArray->setNeuterable(false);
186 m_channels.append(channelDataArray); 186 m_channels.append(channelDataArray);
187 } 187 }
188 } 188 }
189 189
190 AudioBuffer::AudioBuffer(AudioBus* bus) 190 AudioBuffer::AudioBuffer(AudioBus* bus)
191 : m_sampleRate(bus->sampleRate()), m_length(bus->length()) { 191 : m_sampleRate(bus->sampleRate()), m_length(bus->length()) {
192 // Copy audio data from the bus to the Float32Arrays we manage. 192 // Copy audio data from the bus to the Float32Arrays we manage.
193 unsigned numberOfChannels = bus->numberOfChannels(); 193 unsigned numberOfChannels = bus->numberOfChannels();
194 m_channels.reserveCapacity(numberOfChannels); 194 m_channels.reserveCapacity(numberOfChannels);
195 for (unsigned i = 0; i < numberOfChannels; ++i) { 195 for (unsigned i = 0; i < numberOfChannels; ++i) {
196 DOMFloat32Array* channelDataArray = createFloat32ArrayOrNull(m_length); 196 DOMFloat32Array* channelDataArray = createFloat32ArrayOrNull(m_length);
197 // If the channel data array could not be created, just return. The caller w ill need to 197 // If the channel data array could not be created, just return. The caller
198 // check that the desired number of channels were created. 198 // will need to check that the desired number of channels were created.
199 if (!channelDataArray) 199 if (!channelDataArray)
200 return; 200 return;
201 201
202 channelDataArray->setNeuterable(false); 202 channelDataArray->setNeuterable(false);
203 const float* src = bus->channel(i)->data(); 203 const float* src = bus->channel(i)->data();
204 float* dst = channelDataArray->data(); 204 float* dst = channelDataArray->data();
205 memmove(dst, src, m_length * sizeof(*dst)); 205 memmove(dst, src, m_length * sizeof(*dst));
206 m_channels.append(channelDataArray); 206 m_channels.append(channelDataArray);
207 } 207 }
208 } 208 }
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322 void AudioBuffer::zero() { 322 void AudioBuffer::zero() {
323 for (unsigned i = 0; i < m_channels.size(); ++i) { 323 for (unsigned i = 0; i < m_channels.size(); ++i) {
324 if (DOMFloat32Array* array = getChannelData(i)) { 324 if (DOMFloat32Array* array = getChannelData(i)) {
325 float* data = array->data(); 325 float* data = array->data();
326 memset(data, 0, length() * sizeof(*data)); 326 memset(data, 0, length() * sizeof(*data));
327 } 327 }
328 } 328 }
329 } 329 }
330 330
331 } // namespace blink 331 } // namespace blink
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