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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 45 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 56 return buffer; | 56 return buffer; |
| 57 } | 57 } |
| 58 | 58 |
| 59 AudioBuffer* AudioBuffer::create(unsigned numberOfChannels, | 59 AudioBuffer* AudioBuffer::create(unsigned numberOfChannels, |
| 60 size_t numberOfFrames, | 60 size_t numberOfFrames, |
| 61 float sampleRate, | 61 float sampleRate, |
| 62 ExceptionState& exceptionState) { | 62 ExceptionState& exceptionState) { |
| 63 if (!numberOfChannels || | 63 if (!numberOfChannels || |
| 64 numberOfChannels > BaseAudioContext::maxNumberOfChannels()) { | 64 numberOfChannels > BaseAudioContext::maxNumberOfChannels()) { |
| 65 exceptionState.throwDOMException( | 65 exceptionState.throwDOMException( |
| 66 NotSupportedError, ExceptionMessages::indexOutsideRange( | 66 NotSupportedError, |
| 67 "number of channels", numberOfChannels, 1u, | 67 ExceptionMessages::indexOutsideRange( |
| 68 ExceptionMessages::InclusiveBound, | 68 "number of channels", numberOfChannels, 1u, |
| 69 BaseAudioContext::maxNumberOfChannels(), | 69 ExceptionMessages::InclusiveBound, |
| 70 ExceptionMessages::InclusiveBound)); | 70 BaseAudioContext::maxNumberOfChannels(), |
| 71 ExceptionMessages::InclusiveBound)); |
| 71 return nullptr; | 72 return nullptr; |
| 72 } | 73 } |
| 73 | 74 |
| 74 if (!AudioUtilities::isValidAudioBufferSampleRate(sampleRate)) { | 75 if (!AudioUtilities::isValidAudioBufferSampleRate(sampleRate)) { |
| 75 exceptionState.throwDOMException( | 76 exceptionState.throwDOMException( |
| 76 NotSupportedError, ExceptionMessages::indexOutsideRange( | 77 NotSupportedError, |
| 77 "sample rate", sampleRate, | 78 ExceptionMessages::indexOutsideRange( |
| 78 AudioUtilities::minAudioBufferSampleRate(), | 79 "sample rate", sampleRate, |
| 79 ExceptionMessages::InclusiveBound, | 80 AudioUtilities::minAudioBufferSampleRate(), |
| 80 AudioUtilities::maxAudioBufferSampleRate(), | 81 ExceptionMessages::InclusiveBound, |
| 81 ExceptionMessages::InclusiveBound)); | 82 AudioUtilities::maxAudioBufferSampleRate(), |
| 83 ExceptionMessages::InclusiveBound)); |
| 82 return nullptr; | 84 return nullptr; |
| 83 } | 85 } |
| 84 | 86 |
| 85 if (!numberOfFrames) { | 87 if (!numberOfFrames) { |
| 86 exceptionState.throwDOMException( | 88 exceptionState.throwDOMException( |
| 87 NotSupportedError, | 89 NotSupportedError, |
| 88 ExceptionMessages::indexExceedsMinimumBound( | 90 ExceptionMessages::indexExceedsMinimumBound( |
| 89 "number of frames", numberOfFrames, static_cast<size_t>(0))); | 91 "number of frames", numberOfFrames, static_cast<size_t>(0))); |
| 90 return nullptr; | 92 return nullptr; |
| 91 } | 93 } |
| 92 | 94 |
| 93 AudioBuffer* audioBuffer = | 95 AudioBuffer* audioBuffer = |
| 94 create(numberOfChannels, numberOfFrames, sampleRate); | 96 create(numberOfChannels, numberOfFrames, sampleRate); |
| 95 | 97 |
| 96 if (!audioBuffer) { | 98 if (!audioBuffer) { |
| 97 exceptionState.throwDOMException( | 99 exceptionState.throwDOMException( |
| 98 NotSupportedError, "createBuffer(" + String::number(numberOfChannels) + | 100 NotSupportedError, |
| 99 ", " + String::number(numberOfFrames) + ", " + | 101 "createBuffer(" + String::number(numberOfChannels) + ", " + |
| 100 String::number(sampleRate) + ") failed."); | 102 String::number(numberOfFrames) + ", " + String::number(sampleRate) + |
| 103 ") failed."); |
| 101 } | 104 } |
| 102 | 105 |
| 103 return audioBuffer; | 106 return audioBuffer; |
| 104 } | 107 } |
| 105 | 108 |
| 106 AudioBuffer* AudioBuffer::create(const AudioBufferOptions& options, | 109 AudioBuffer* AudioBuffer::create(const AudioBufferOptions& options, |
| 107 ExceptionState& exceptionState) { | 110 ExceptionState& exceptionState) { |
| 108 return create(options.numberOfChannels(), options.length(), | 111 return create(options.numberOfChannels(), options.length(), |
| 109 options.sampleRate(), exceptionState); | 112 options.sampleRate(), exceptionState); |
| 110 } | 113 } |
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| 180 float* dst = channelDataArray->data(); | 183 float* dst = channelDataArray->data(); |
| 181 memmove(dst, src, m_length * sizeof(*dst)); | 184 memmove(dst, src, m_length * sizeof(*dst)); |
| 182 m_channels.push_back(channelDataArray); | 185 m_channels.push_back(channelDataArray); |
| 183 } | 186 } |
| 184 } | 187 } |
| 185 | 188 |
| 186 DOMFloat32Array* AudioBuffer::getChannelData(unsigned channelIndex, | 189 DOMFloat32Array* AudioBuffer::getChannelData(unsigned channelIndex, |
| 187 ExceptionState& exceptionState) { | 190 ExceptionState& exceptionState) { |
| 188 if (channelIndex >= m_channels.size()) { | 191 if (channelIndex >= m_channels.size()) { |
| 189 exceptionState.throwDOMException( | 192 exceptionState.throwDOMException( |
| 190 IndexSizeError, "channel index (" + String::number(channelIndex) + | 193 IndexSizeError, |
| 191 ") exceeds number of channels (" + | 194 "channel index (" + String::number(channelIndex) + |
| 192 String::number(m_channels.size()) + ")"); | 195 ") exceeds number of channels (" + |
| 196 String::number(m_channels.size()) + ")"); |
| 193 return nullptr; | 197 return nullptr; |
| 194 } | 198 } |
| 195 | 199 |
| 196 return getChannelData(channelIndex); | 200 return getChannelData(channelIndex); |
| 197 } | 201 } |
| 198 | 202 |
| 199 DOMFloat32Array* AudioBuffer::getChannelData(unsigned channelIndex) { | 203 DOMFloat32Array* AudioBuffer::getChannelData(unsigned channelIndex) { |
| 200 if (channelIndex >= m_channels.size()) | 204 if (channelIndex >= m_channels.size()) |
| 201 return nullptr; | 205 return nullptr; |
| 202 | 206 |
| 203 return m_channels[channelIndex].get(); | 207 return m_channels[channelIndex].get(); |
| 204 } | 208 } |
| 205 | 209 |
| 206 void AudioBuffer::copyFromChannel(DOMFloat32Array* destination, | 210 void AudioBuffer::copyFromChannel(DOMFloat32Array* destination, |
| 207 long channelNumber, | 211 long channelNumber, |
| 208 ExceptionState& exceptionState) { | 212 ExceptionState& exceptionState) { |
| 209 return copyFromChannel(destination, channelNumber, 0, exceptionState); | 213 return copyFromChannel(destination, channelNumber, 0, exceptionState); |
| 210 } | 214 } |
| 211 | 215 |
| 212 void AudioBuffer::copyFromChannel(DOMFloat32Array* destination, | 216 void AudioBuffer::copyFromChannel(DOMFloat32Array* destination, |
| 213 long channelNumber, | 217 long channelNumber, |
| 214 unsigned long startInChannel, | 218 unsigned long startInChannel, |
| 215 ExceptionState& exceptionState) { | 219 ExceptionState& exceptionState) { |
| 216 if (channelNumber < 0 || | 220 if (channelNumber < 0 || |
| 217 channelNumber >= static_cast<long>(m_channels.size())) { | 221 channelNumber >= static_cast<long>(m_channels.size())) { |
| 218 exceptionState.throwDOMException( | 222 exceptionState.throwDOMException( |
| 219 IndexSizeError, ExceptionMessages::indexOutsideRange( | 223 IndexSizeError, |
| 220 "channelNumber", channelNumber, 0L, | 224 ExceptionMessages::indexOutsideRange( |
| 221 ExceptionMessages::InclusiveBound, | 225 "channelNumber", channelNumber, 0L, |
| 222 static_cast<long>(m_channels.size() - 1), | 226 ExceptionMessages::InclusiveBound, |
| 223 ExceptionMessages::InclusiveBound)); | 227 static_cast<long>(m_channels.size() - 1), |
| 228 ExceptionMessages::InclusiveBound)); |
| 224 return; | 229 return; |
| 225 } | 230 } |
| 226 | 231 |
| 227 DOMFloat32Array* channelData = m_channels[channelNumber].get(); | 232 DOMFloat32Array* channelData = m_channels[channelNumber].get(); |
| 228 | 233 |
| 229 if (startInChannel >= channelData->length()) { | 234 if (startInChannel >= channelData->length()) { |
| 230 exceptionState.throwDOMException( | 235 exceptionState.throwDOMException( |
| 231 IndexSizeError, ExceptionMessages::indexOutsideRange( | 236 IndexSizeError, |
| 232 "startInChannel", startInChannel, 0UL, | 237 ExceptionMessages::indexOutsideRange( |
| 233 ExceptionMessages::InclusiveBound, | 238 "startInChannel", startInChannel, 0UL, |
| 234 static_cast<unsigned long>(channelData->length()), | 239 ExceptionMessages::InclusiveBound, |
| 235 ExceptionMessages::ExclusiveBound)); | 240 static_cast<unsigned long>(channelData->length()), |
| 241 ExceptionMessages::ExclusiveBound)); |
| 236 | 242 |
| 237 return; | 243 return; |
| 238 } | 244 } |
| 239 | 245 |
| 240 unsigned count = channelData->length() - startInChannel; | 246 unsigned count = channelData->length() - startInChannel; |
| 241 count = std::min(destination->length(), count); | 247 count = std::min(destination->length(), count); |
| 242 | 248 |
| 243 const float* src = channelData->data(); | 249 const float* src = channelData->data(); |
| 244 float* dst = destination->data(); | 250 float* dst = destination->data(); |
| 245 | 251 |
| 246 DCHECK(src); | 252 DCHECK(src); |
| 247 DCHECK(dst); | 253 DCHECK(dst); |
| 248 | 254 |
| 249 memcpy(dst, src + startInChannel, count * sizeof(*src)); | 255 memcpy(dst, src + startInChannel, count * sizeof(*src)); |
| 250 } | 256 } |
| 251 | 257 |
| 252 void AudioBuffer::copyToChannel(DOMFloat32Array* source, | 258 void AudioBuffer::copyToChannel(DOMFloat32Array* source, |
| 253 long channelNumber, | 259 long channelNumber, |
| 254 ExceptionState& exceptionState) { | 260 ExceptionState& exceptionState) { |
| 255 return copyToChannel(source, channelNumber, 0, exceptionState); | 261 return copyToChannel(source, channelNumber, 0, exceptionState); |
| 256 } | 262 } |
| 257 | 263 |
| 258 void AudioBuffer::copyToChannel(DOMFloat32Array* source, | 264 void AudioBuffer::copyToChannel(DOMFloat32Array* source, |
| 259 long channelNumber, | 265 long channelNumber, |
| 260 unsigned long startInChannel, | 266 unsigned long startInChannel, |
| 261 ExceptionState& exceptionState) { | 267 ExceptionState& exceptionState) { |
| 262 if (channelNumber < 0 || | 268 if (channelNumber < 0 || |
| 263 channelNumber >= static_cast<long>(m_channels.size())) { | 269 channelNumber >= static_cast<long>(m_channels.size())) { |
| 264 exceptionState.throwDOMException( | 270 exceptionState.throwDOMException( |
| 265 IndexSizeError, ExceptionMessages::indexOutsideRange( | 271 IndexSizeError, |
| 266 "channelNumber", channelNumber, 0L, | 272 ExceptionMessages::indexOutsideRange( |
| 267 ExceptionMessages::InclusiveBound, | 273 "channelNumber", channelNumber, 0L, |
| 268 static_cast<long>(m_channels.size() - 1), | 274 ExceptionMessages::InclusiveBound, |
| 269 ExceptionMessages::InclusiveBound)); | 275 static_cast<long>(m_channels.size() - 1), |
| 276 ExceptionMessages::InclusiveBound)); |
| 270 return; | 277 return; |
| 271 } | 278 } |
| 272 | 279 |
| 273 DOMFloat32Array* channelData = m_channels[channelNumber].get(); | 280 DOMFloat32Array* channelData = m_channels[channelNumber].get(); |
| 274 | 281 |
| 275 if (startInChannel >= channelData->length()) { | 282 if (startInChannel >= channelData->length()) { |
| 276 exceptionState.throwDOMException( | 283 exceptionState.throwDOMException( |
| 277 IndexSizeError, ExceptionMessages::indexOutsideRange( | 284 IndexSizeError, |
| 278 "startInChannel", startInChannel, 0UL, | 285 ExceptionMessages::indexOutsideRange( |
| 279 ExceptionMessages::InclusiveBound, | 286 "startInChannel", startInChannel, 0UL, |
| 280 static_cast<unsigned long>(channelData->length()), | 287 ExceptionMessages::InclusiveBound, |
| 281 ExceptionMessages::ExclusiveBound)); | 288 static_cast<unsigned long>(channelData->length()), |
| 289 ExceptionMessages::ExclusiveBound)); |
| 282 | 290 |
| 283 return; | 291 return; |
| 284 } | 292 } |
| 285 | 293 |
| 286 unsigned count = channelData->length() - startInChannel; | 294 unsigned count = channelData->length() - startInChannel; |
| 287 count = std::min(source->length(), count); | 295 count = std::min(source->length(), count); |
| 288 | 296 |
| 289 const float* src = source->data(); | 297 const float* src = source->data(); |
| 290 float* dst = channelData->data(); | 298 float* dst = channelData->data(); |
| 291 | 299 |
| 292 DCHECK(src); | 300 DCHECK(src); |
| 293 DCHECK(dst); | 301 DCHECK(dst); |
| 294 | 302 |
| 295 memcpy(dst + startInChannel, src, count * sizeof(*dst)); | 303 memcpy(dst + startInChannel, src, count * sizeof(*dst)); |
| 296 } | 304 } |
| 297 | 305 |
| 298 void AudioBuffer::zero() { | 306 void AudioBuffer::zero() { |
| 299 for (unsigned i = 0; i < m_channels.size(); ++i) { | 307 for (unsigned i = 0; i < m_channels.size(); ++i) { |
| 300 if (DOMFloat32Array* array = getChannelData(i)) { | 308 if (DOMFloat32Array* array = getChannelData(i)) { |
| 301 float* data = array->data(); | 309 float* data = array->data(); |
| 302 memset(data, 0, length() * sizeof(*data)); | 310 memset(data, 0, length() * sizeof(*data)); |
| 303 } | 311 } |
| 304 } | 312 } |
| 305 } | 313 } |
| 306 | 314 |
| 307 } // namespace blink | 315 } // namespace blink |
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