| OLD | NEW |
| 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 are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * 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 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
| (...skipping 26 matching lines...) Expand all Loading... |
| 37 // "initialized" state. | 37 // "initialized" state. |
| 38 AudioDSPKernelProcessor::AudioDSPKernelProcessor(float sampleRate, | 38 AudioDSPKernelProcessor::AudioDSPKernelProcessor(float sampleRate, |
| 39 unsigned numberOfChannels) | 39 unsigned numberOfChannels) |
| 40 : AudioProcessor(sampleRate, numberOfChannels), m_hasJustReset(true) {} | 40 : AudioProcessor(sampleRate, numberOfChannels), m_hasJustReset(true) {} |
| 41 | 41 |
| 42 void AudioDSPKernelProcessor::initialize() { | 42 void AudioDSPKernelProcessor::initialize() { |
| 43 if (isInitialized()) | 43 if (isInitialized()) |
| 44 return; | 44 return; |
| 45 | 45 |
| 46 MutexLocker locker(m_processLock); | 46 MutexLocker locker(m_processLock); |
| 47 ASSERT(!m_kernels.size()); | 47 DCHECK(!m_kernels.size()); |
| 48 | 48 |
| 49 // Create processing kernels, one per channel. | 49 // Create processing kernels, one per channel. |
| 50 for (unsigned i = 0; i < numberOfChannels(); ++i) | 50 for (unsigned i = 0; i < numberOfChannels(); ++i) |
| 51 m_kernels.push_back(createKernel()); | 51 m_kernels.push_back(createKernel()); |
| 52 | 52 |
| 53 m_initialized = true; | 53 m_initialized = true; |
| 54 m_hasJustReset = true; | 54 m_hasJustReset = true; |
| 55 } | 55 } |
| 56 | 56 |
| 57 void AudioDSPKernelProcessor::uninitialize() { | 57 void AudioDSPKernelProcessor::uninitialize() { |
| (...skipping 16 matching lines...) Expand all Loading... |
| 74 if (!isInitialized()) { | 74 if (!isInitialized()) { |
| 75 destination->zero(); | 75 destination->zero(); |
| 76 return; | 76 return; |
| 77 } | 77 } |
| 78 | 78 |
| 79 MutexTryLocker tryLocker(m_processLock); | 79 MutexTryLocker tryLocker(m_processLock); |
| 80 if (tryLocker.locked()) { | 80 if (tryLocker.locked()) { |
| 81 bool channelCountMatches = | 81 bool channelCountMatches = |
| 82 source->numberOfChannels() == destination->numberOfChannels() && | 82 source->numberOfChannels() == destination->numberOfChannels() && |
| 83 source->numberOfChannels() == m_kernels.size(); | 83 source->numberOfChannels() == m_kernels.size(); |
| 84 ASSERT(channelCountMatches); | 84 DCHECK(channelCountMatches); |
| 85 if (!channelCountMatches) | 85 if (!channelCountMatches) |
| 86 return; | 86 return; |
| 87 | 87 |
| 88 for (unsigned i = 0; i < m_kernels.size(); ++i) | 88 for (unsigned i = 0; i < m_kernels.size(); ++i) |
| 89 m_kernels[i]->process(source->channel(i)->data(), | 89 m_kernels[i]->process(source->channel(i)->data(), |
| 90 destination->channel(i)->mutableData(), | 90 destination->channel(i)->mutableData(), |
| 91 framesToProcess); | 91 framesToProcess); |
| 92 } else { | 92 } else { |
| 93 // Unfortunately, the kernel is being processed by another thread. | 93 // Unfortunately, the kernel is being processed by another thread. |
| 94 // See also ConvolverNode::process(). | 94 // See also ConvolverNode::process(). |
| (...skipping 10 matching lines...) Expand all Loading... |
| 105 // other thread is updating the kernels, so we'll have to skip it | 105 // other thread is updating the kernels, so we'll have to skip it |
| 106 // this time. | 106 // this time. |
| 107 if (tryLocker.locked()) { | 107 if (tryLocker.locked()) { |
| 108 for (unsigned i = 0; i < m_kernels.size(); ++i) | 108 for (unsigned i = 0; i < m_kernels.size(); ++i) |
| 109 m_kernels[i]->processOnlyAudioParams(framesToProcess); | 109 m_kernels[i]->processOnlyAudioParams(framesToProcess); |
| 110 } | 110 } |
| 111 } | 111 } |
| 112 | 112 |
| 113 // Resets filter state | 113 // Resets filter state |
| 114 void AudioDSPKernelProcessor::reset() { | 114 void AudioDSPKernelProcessor::reset() { |
| 115 ASSERT(isMainThread()); | 115 DCHECK(isMainThread()); |
| 116 if (!isInitialized()) | 116 if (!isInitialized()) |
| 117 return; | 117 return; |
| 118 | 118 |
| 119 // Forces snap to parameter values - first time. | 119 // Forces snap to parameter values - first time. |
| 120 // Any processing depending on this value must set it to false at the | 120 // Any processing depending on this value must set it to false at the |
| 121 // appropriate time. | 121 // appropriate time. |
| 122 m_hasJustReset = true; | 122 m_hasJustReset = true; |
| 123 | 123 |
| 124 MutexLocker locker(m_processLock); | 124 MutexLocker locker(m_processLock); |
| 125 for (unsigned i = 0; i < m_kernels.size(); ++i) | 125 for (unsigned i = 0; i < m_kernels.size(); ++i) |
| 126 m_kernels[i]->reset(); | 126 m_kernels[i]->reset(); |
| 127 } | 127 } |
| 128 | 128 |
| 129 void AudioDSPKernelProcessor::setNumberOfChannels(unsigned numberOfChannels) { | 129 void AudioDSPKernelProcessor::setNumberOfChannels(unsigned numberOfChannels) { |
| 130 if (numberOfChannels == m_numberOfChannels) | 130 if (numberOfChannels == m_numberOfChannels) |
| 131 return; | 131 return; |
| 132 | 132 |
| 133 ASSERT(!isInitialized()); | 133 DCHECK(!isInitialized()); |
| 134 if (!isInitialized()) | 134 if (!isInitialized()) |
| 135 m_numberOfChannels = numberOfChannels; | 135 m_numberOfChannels = numberOfChannels; |
| 136 } | 136 } |
| 137 | 137 |
| 138 double AudioDSPKernelProcessor::tailTime() const { | 138 double AudioDSPKernelProcessor::tailTime() const { |
| 139 ASSERT(!isMainThread()); | 139 DCHECK(!isMainThread()); |
| 140 MutexTryLocker tryLocker(m_processLock); | 140 MutexTryLocker tryLocker(m_processLock); |
| 141 if (tryLocker.locked()) { | 141 if (tryLocker.locked()) { |
| 142 // It is expected that all the kernels have the same tailTime. | 142 // It is expected that all the kernels have the same tailTime. |
| 143 return !m_kernels.isEmpty() ? m_kernels.front()->tailTime() : 0; | 143 return !m_kernels.isEmpty() ? m_kernels.front()->tailTime() : 0; |
| 144 } | 144 } |
| 145 // Since we don't want to block the Audio Device thread, we return a large | 145 // Since we don't want to block the Audio Device thread, we return a large |
| 146 // value instead of trying to acquire the lock. | 146 // value instead of trying to acquire the lock. |
| 147 return std::numeric_limits<double>::infinity(); | 147 return std::numeric_limits<double>::infinity(); |
| 148 } | 148 } |
| 149 | 149 |
| 150 double AudioDSPKernelProcessor::latencyTime() const { | 150 double AudioDSPKernelProcessor::latencyTime() const { |
| 151 ASSERT(!isMainThread()); | 151 DCHECK(!isMainThread()); |
| 152 MutexTryLocker tryLocker(m_processLock); | 152 MutexTryLocker tryLocker(m_processLock); |
| 153 if (tryLocker.locked()) { | 153 if (tryLocker.locked()) { |
| 154 // It is expected that all the kernels have the same latencyTime. | 154 // It is expected that all the kernels have the same latencyTime. |
| 155 return !m_kernels.isEmpty() ? m_kernels.front()->latencyTime() : 0; | 155 return !m_kernels.isEmpty() ? m_kernels.front()->latencyTime() : 0; |
| 156 } | 156 } |
| 157 // Since we don't want to block the Audio Device thread, we return a large | 157 // Since we don't want to block the Audio Device thread, we return a large |
| 158 // value instead of trying to acquire the lock. | 158 // value instead of trying to acquire the lock. |
| 159 return std::numeric_limits<double>::infinity(); | 159 return std::numeric_limits<double>::infinity(); |
| 160 } | 160 } |
| 161 | 161 |
| 162 } // namespace blink | 162 } // namespace blink |
| OLD | NEW |