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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 "modules/webaudio/AbstractAudioContext.h" | |
| 26 #include "modules/webaudio/AudioNodeInput.h" | 25 #include "modules/webaudio/AudioNodeInput.h" |
| 27 #include "modules/webaudio/AudioNodeOutput.h" | 26 #include "modules/webaudio/AudioNodeOutput.h" |
| 27 #include "modules/webaudio/BaseAudioContext.h" |
| 28 #include "wtf/PtrUtil.h" | 28 #include "wtf/PtrUtil.h" |
| 29 #include "wtf/Threading.h" | 29 #include "wtf/Threading.h" |
| 30 #include <memory> | 30 #include <memory> |
| 31 | 31 |
| 32 namespace blink { | 32 namespace blink { |
| 33 | 33 |
| 34 inline AudioNodeOutput::AudioNodeOutput(AudioHandler* handler, unsigned numberOf
Channels) | 34 inline AudioNodeOutput::AudioNodeOutput(AudioHandler* handler, unsigned numberOf
Channels) |
| 35 : m_handler(*handler) | 35 : m_handler(*handler) |
| 36 , m_numberOfChannels(numberOfChannels) | 36 , m_numberOfChannels(numberOfChannels) |
| 37 , m_desiredNumberOfChannels(numberOfChannels) | 37 , m_desiredNumberOfChannels(numberOfChannels) |
| 38 , m_isInPlace(false) | 38 , m_isInPlace(false) |
| 39 , m_isEnabled(true) | 39 , m_isEnabled(true) |
| 40 #if ENABLE_ASSERT | 40 #if ENABLE_ASSERT |
| 41 , m_didCallDispose(false) | 41 , m_didCallDispose(false) |
| 42 #endif | 42 #endif |
| 43 , m_renderingFanOutCount(0) | 43 , m_renderingFanOutCount(0) |
| 44 , m_renderingParamFanOutCount(0) | 44 , m_renderingParamFanOutCount(0) |
| 45 { | 45 { |
| 46 ASSERT(numberOfChannels <= AbstractAudioContext::maxNumberOfChannels()); | 46 DCHECK_LE(numberOfChannels, BaseAudioContext::maxNumberOfChannels()); |
| 47 | 47 |
| 48 m_internalBus = AudioBus::create(numberOfChannels, AudioHandler::ProcessingS
izeInFrames); | 48 m_internalBus = AudioBus::create(numberOfChannels, AudioHandler::ProcessingS
izeInFrames); |
| 49 } | 49 } |
| 50 | 50 |
| 51 std::unique_ptr<AudioNodeOutput> AudioNodeOutput::create(AudioHandler* handler,
unsigned numberOfChannels) | 51 std::unique_ptr<AudioNodeOutput> AudioNodeOutput::create(AudioHandler* handler,
unsigned numberOfChannels) |
| 52 { | 52 { |
| 53 return wrapUnique(new AudioNodeOutput(handler, numberOfChannels)); | 53 return wrapUnique(new AudioNodeOutput(handler, numberOfChannels)); |
| 54 } | 54 } |
| 55 | 55 |
| 56 void AudioNodeOutput::dispose() | 56 void AudioNodeOutput::dispose() |
| 57 { | 57 { |
| 58 #if ENABLE_ASSERT | 58 #if ENABLE_ASSERT |
| 59 m_didCallDispose = true; | 59 m_didCallDispose = true; |
| 60 #endif | 60 #endif |
| 61 deferredTaskHandler().removeMarkedAudioNodeOutput(this); | 61 deferredTaskHandler().removeMarkedAudioNodeOutput(this); |
| 62 disconnectAll(); | 62 disconnectAll(); |
| 63 ASSERT(m_inputs.isEmpty()); | 63 ASSERT(m_inputs.isEmpty()); |
| 64 ASSERT(m_params.isEmpty()); | 64 ASSERT(m_params.isEmpty()); |
| 65 } | 65 } |
| 66 | 66 |
| 67 void AudioNodeOutput::setNumberOfChannels(unsigned numberOfChannels) | 67 void AudioNodeOutput::setNumberOfChannels(unsigned numberOfChannels) |
| 68 { | 68 { |
| 69 ASSERT(numberOfChannels <= AbstractAudioContext::maxNumberOfChannels()); | 69 DCHECK_LE(numberOfChannels, BaseAudioContext::maxNumberOfChannels()); |
| 70 ASSERT(deferredTaskHandler().isGraphOwner()); | 70 ASSERT(deferredTaskHandler().isGraphOwner()); |
| 71 | 71 |
| 72 m_desiredNumberOfChannels = numberOfChannels; | 72 m_desiredNumberOfChannels = numberOfChannels; |
| 73 | 73 |
| 74 if (deferredTaskHandler().isAudioThread()) { | 74 if (deferredTaskHandler().isAudioThread()) { |
| 75 // 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). | 75 // 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 updateNumberOfChannels(); | 76 updateNumberOfChannels(); |
| 77 } else { | 77 } else { |
| 78 ASSERT(!m_didCallDispose); | 78 ASSERT(!m_didCallDispose); |
| 79 // Let the context take care of it in the audio thread in the pre and po
st render tasks. | 79 // Let the context take care of it in the audio thread in the pre and po
st render tasks. |
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| 255 | 255 |
| 256 if (!m_isEnabled) { | 256 if (!m_isEnabled) { |
| 257 m_isEnabled = true; | 257 m_isEnabled = true; |
| 258 for (AudioNodeInput* i : m_inputs) | 258 for (AudioNodeInput* i : m_inputs) |
| 259 i->enable(*this); | 259 i->enable(*this); |
| 260 } | 260 } |
| 261 } | 261 } |
| 262 | 262 |
| 263 } // namespace blink | 263 } // namespace blink |
| 264 | 264 |
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