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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 |
| 11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
| 12 * | 12 * |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y | 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y |
| 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N | 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N |
| 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 23 */ | 23 */ |
| 24 | 24 |
| 25 #include "config.h" | 25 #include "config.h" |
| 26 #if ENABLE(WEB_AUDIO) | 26 #if ENABLE(WEB_AUDIO) |
| 27 #include "modules/webaudio/AudioNodeOutput.h" | 27 #include "modules/webaudio/AudioNodeOutput.h" |
| 28 | 28 |
| 29 #include "modules/webaudio/AudioContext.h" | 29 #include "modules/webaudio/AbstractAudioContext.h" |
| 30 #include "modules/webaudio/AudioNodeInput.h" | 30 #include "modules/webaudio/AudioNodeInput.h" |
| 31 #include "wtf/Threading.h" | 31 #include "wtf/Threading.h" |
| 32 | 32 |
| 33 namespace blink { | 33 namespace blink { |
| 34 | 34 |
| 35 inline AudioNodeOutput::AudioNodeOutput(AudioHandler* handler, unsigned numberOf
Channels) | 35 inline AudioNodeOutput::AudioNodeOutput(AudioHandler* handler, unsigned numberOf
Channels) |
| 36 : m_handler(*handler) | 36 : m_handler(*handler) |
| 37 , m_numberOfChannels(numberOfChannels) | 37 , m_numberOfChannels(numberOfChannels) |
| 38 , m_desiredNumberOfChannels(numberOfChannels) | 38 , m_desiredNumberOfChannels(numberOfChannels) |
| 39 , m_isInPlace(false) | 39 , m_isInPlace(false) |
| 40 , m_isEnabled(true) | 40 , m_isEnabled(true) |
| 41 #if ENABLE_ASSERT | 41 #if ENABLE_ASSERT |
| 42 , m_didCallDispose(false) | 42 , m_didCallDispose(false) |
| 43 #endif | 43 #endif |
| 44 , m_renderingFanOutCount(0) | 44 , m_renderingFanOutCount(0) |
| 45 , m_renderingParamFanOutCount(0) | 45 , m_renderingParamFanOutCount(0) |
| 46 { | 46 { |
| 47 ASSERT(numberOfChannels <= AudioContext::maxNumberOfChannels()); | 47 ASSERT(numberOfChannels <= AbstractAudioContext::maxNumberOfChannels()); |
| 48 | 48 |
| 49 m_internalBus = AudioBus::create(numberOfChannels, AudioHandler::ProcessingS
izeInFrames); | 49 m_internalBus = AudioBus::create(numberOfChannels, AudioHandler::ProcessingS
izeInFrames); |
| 50 } | 50 } |
| 51 | 51 |
| 52 PassOwnPtr<AudioNodeOutput> AudioNodeOutput::create(AudioHandler* handler, unsig
ned numberOfChannels) | 52 PassOwnPtr<AudioNodeOutput> AudioNodeOutput::create(AudioHandler* handler, unsig
ned numberOfChannels) |
| 53 { | 53 { |
| 54 return adoptPtr(new AudioNodeOutput(handler, numberOfChannels)); | 54 return adoptPtr(new AudioNodeOutput(handler, numberOfChannels)); |
| 55 } | 55 } |
| 56 | 56 |
| 57 void AudioNodeOutput::dispose() | 57 void AudioNodeOutput::dispose() |
| 58 { | 58 { |
| 59 #if ENABLE_ASSERT | 59 #if ENABLE_ASSERT |
| 60 m_didCallDispose = true; | 60 m_didCallDispose = true; |
| 61 #endif | 61 #endif |
| 62 deferredTaskHandler().removeMarkedAudioNodeOutput(this); | 62 deferredTaskHandler().removeMarkedAudioNodeOutput(this); |
| 63 disconnectAll(); | 63 disconnectAll(); |
| 64 ASSERT(m_inputs.isEmpty()); | 64 ASSERT(m_inputs.isEmpty()); |
| 65 ASSERT(m_params.isEmpty()); | 65 ASSERT(m_params.isEmpty()); |
| 66 } | 66 } |
| 67 | 67 |
| 68 void AudioNodeOutput::setNumberOfChannels(unsigned numberOfChannels) | 68 void AudioNodeOutput::setNumberOfChannels(unsigned numberOfChannels) |
| 69 { | 69 { |
| 70 ASSERT(numberOfChannels <= AudioContext::maxNumberOfChannels()); | 70 ASSERT(numberOfChannels <= AbstractAudioContext::maxNumberOfChannels()); |
| 71 ASSERT(deferredTaskHandler().isGraphOwner()); | 71 ASSERT(deferredTaskHandler().isGraphOwner()); |
| 72 | 72 |
| 73 m_desiredNumberOfChannels = numberOfChannels; | 73 m_desiredNumberOfChannels = numberOfChannels; |
| 74 | 74 |
| 75 if (deferredTaskHandler().isAudioThread()) { | 75 if (deferredTaskHandler().isAudioThread()) { |
| 76 // If we're in the audio thread then we can take care of it right away (
we should be at the very start or end of a rendering quantum). | 76 // If we're in the audio thread then we can take care of it right away (
we should be at the very start or end of a rendering quantum). |
| 77 updateNumberOfChannels(); | 77 updateNumberOfChannels(); |
| 78 } else { | 78 } else { |
| 79 ASSERT(!m_didCallDispose); | 79 ASSERT(!m_didCallDispose); |
| 80 // Let the context take care of it in the audio thread in the pre and po
st render tasks. | 80 // Let the context take care of it in the audio thread in the pre and po
st render tasks. |
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| 257 if (!m_isEnabled) { | 257 if (!m_isEnabled) { |
| 258 m_isEnabled = true; | 258 m_isEnabled = true; |
| 259 for (AudioNodeInput* i : m_inputs) | 259 for (AudioNodeInput* i : m_inputs) |
| 260 i->enable(*this); | 260 i->enable(*this); |
| 261 } | 261 } |
| 262 } | 262 } |
| 263 | 263 |
| 264 } // namespace blink | 264 } // namespace blink |
| 265 | 265 |
| 266 #endif // ENABLE(WEB_AUDIO) | 266 #endif // ENABLE(WEB_AUDIO) |
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