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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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