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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "modules/webaudio/StereoPannerNode.h" | 5 #include "modules/webaudio/StereoPannerNode.h" |
6 #include "bindings/core/v8/ExceptionMessages.h" | 6 #include "bindings/core/v8/ExceptionMessages.h" |
7 #include "bindings/core/v8/ExceptionState.h" | 7 #include "bindings/core/v8/ExceptionState.h" |
8 #include "core/dom/ExceptionCode.h" | 8 #include "core/dom/ExceptionCode.h" |
9 #include "core/dom/ExecutionContext.h" | 9 #include "core/dom/ExecutionContext.h" |
10 #include "modules/webaudio/AudioNodeInput.h" | 10 #include "modules/webaudio/AudioNodeInput.h" |
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52 } | 52 } |
53 | 53 |
54 AudioBus* inputBus = input(0).bus(); | 54 AudioBus* inputBus = input(0).bus(); |
55 if (!inputBus) { | 55 if (!inputBus) { |
56 outputBus->zero(); | 56 outputBus->zero(); |
57 return; | 57 return; |
58 } | 58 } |
59 | 59 |
60 if (m_pan->hasSampleAccurateValues()) { | 60 if (m_pan->hasSampleAccurateValues()) { |
61 // Apply sample-accurate panning specified by AudioParam automation. | 61 // Apply sample-accurate panning specified by AudioParam automation. |
62 ASSERT(framesToProcess <= m_sampleAccuratePanValues.size()); | 62 DCHECK_LE(framesToProcess, m_sampleAccuratePanValues.size()); |
63 if (framesToProcess <= m_sampleAccuratePanValues.size()) { | 63 if (framesToProcess <= m_sampleAccuratePanValues.size()) { |
64 float* panValues = m_sampleAccuratePanValues.data(); | 64 float* panValues = m_sampleAccuratePanValues.data(); |
65 m_pan->calculateSampleAccurateValues(panValues, framesToProcess); | 65 m_pan->calculateSampleAccurateValues(panValues, framesToProcess); |
66 m_stereoPanner->panWithSampleAccurateValues(inputBus, outputBus, pan
Values, framesToProcess); | 66 m_stereoPanner->panWithSampleAccurateValues(inputBus, outputBus, pan
Values, framesToProcess); |
67 } | 67 } |
68 } else { | 68 } else { |
69 m_stereoPanner->panToTargetValue(inputBus, outputBus, m_pan->value(), fr
amesToProcess); | 69 m_stereoPanner->panToTargetValue(inputBus, outputBus, m_pan->value(), fr
amesToProcess); |
70 } | 70 } |
71 } | 71 } |
72 | 72 |
73 void StereoPannerHandler::initialize() | 73 void StereoPannerHandler::initialize() |
74 { | 74 { |
75 if (isInitialized()) | 75 if (isInitialized()) |
76 return; | 76 return; |
77 | 77 |
78 m_stereoPanner = Spatializer::create(Spatializer::PanningModelEqualPower, sa
mpleRate()); | 78 m_stereoPanner = Spatializer::create(Spatializer::PanningModelEqualPower, sa
mpleRate()); |
79 | 79 |
80 AudioHandler::initialize(); | 80 AudioHandler::initialize(); |
81 } | 81 } |
82 | 82 |
83 void StereoPannerHandler::setChannelCount(unsigned long channelCount, ExceptionS
tate& exceptionState) | 83 void StereoPannerHandler::setChannelCount(unsigned long channelCount, ExceptionS
tate& exceptionState) |
84 { | 84 { |
85 ASSERT(isMainThread()); | 85 DCHECK(isMainThread()); |
86 BaseAudioContext::AutoLocker locker(context()); | 86 BaseAudioContext::AutoLocker locker(context()); |
87 | 87 |
88 // A PannerNode only supports 1 or 2 channels | 88 // A PannerNode only supports 1 or 2 channels |
89 if (channelCount > 0 && channelCount <= 2) { | 89 if (channelCount > 0 && channelCount <= 2) { |
90 if (m_channelCount != channelCount) { | 90 if (m_channelCount != channelCount) { |
91 m_channelCount = channelCount; | 91 m_channelCount = channelCount; |
92 if (internalChannelCountMode() != Max) | 92 if (internalChannelCountMode() != Max) |
93 updateChannelsForInputs(); | 93 updateChannelsForInputs(); |
94 } | 94 } |
95 } else { | 95 } else { |
96 exceptionState.throwDOMException( | 96 exceptionState.throwDOMException( |
97 NotSupportedError, | 97 NotSupportedError, |
98 ExceptionMessages::indexOutsideRange<unsigned long>( | 98 ExceptionMessages::indexOutsideRange<unsigned long>( |
99 "channelCount", | 99 "channelCount", |
100 channelCount, | 100 channelCount, |
101 1, | 101 1, |
102 ExceptionMessages::InclusiveBound, | 102 ExceptionMessages::InclusiveBound, |
103 2, | 103 2, |
104 ExceptionMessages::InclusiveBound)); | 104 ExceptionMessages::InclusiveBound)); |
105 } | 105 } |
106 } | 106 } |
107 | 107 |
108 void StereoPannerHandler::setChannelCountMode(const String& mode, ExceptionState
& exceptionState) | 108 void StereoPannerHandler::setChannelCountMode(const String& mode, ExceptionState
& exceptionState) |
109 { | 109 { |
110 ASSERT(isMainThread()); | 110 DCHECK(isMainThread()); |
111 BaseAudioContext::AutoLocker locker(context()); | 111 BaseAudioContext::AutoLocker locker(context()); |
112 | 112 |
113 if (mode == "clamped-max") { | 113 if (mode == "clamped-max") { |
114 setInternalChannelCountMode(ClampedMax); | 114 setInternalChannelCountMode(ClampedMax); |
115 } else if (mode == "explicit") { | 115 } else if (mode == "explicit") { |
116 setInternalChannelCountMode(Explicit); | 116 setInternalChannelCountMode(Explicit); |
117 } else if (mode == "max") { | 117 } else if (mode == "max") { |
118 // This is not supported for a StereoPannerNode, which can only handle | 118 // This is not supported for a StereoPannerNode, which can only handle |
119 // 1 or 2 channels. | 119 // 1 or 2 channels. |
120 exceptionState.throwDOMException( | 120 exceptionState.throwDOMException( |
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150 AudioNode::trace(visitor); | 150 AudioNode::trace(visitor); |
151 } | 151 } |
152 | 152 |
153 AudioParam* StereoPannerNode::pan() const | 153 AudioParam* StereoPannerNode::pan() const |
154 { | 154 { |
155 return m_pan; | 155 return m_pan; |
156 } | 156 } |
157 | 157 |
158 } // namespace blink | 158 } // namespace blink |
159 | 159 |
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