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1 /* | 1 /* |
2 * Copyright (C) 2011, Google Inc. All rights reserved. | 2 * Copyright (C) 2011, 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 |
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33 namespace blink { | 33 namespace blink { |
34 | 34 |
35 WaveShaperNode::WaveShaperNode(AbstractAudioContext& context) | 35 WaveShaperNode::WaveShaperNode(AbstractAudioContext& context) |
36 : AudioNode(context) | 36 : AudioNode(context) |
37 { | 37 { |
38 setHandler(AudioBasicProcessorHandler::create(AudioHandler::NodeTypeWaveShap
er, *this, context.sampleRate(), adoptPtr(new WaveShaperProcessor(context.sample
Rate(), 1)))); | 38 setHandler(AudioBasicProcessorHandler::create(AudioHandler::NodeTypeWaveShap
er, *this, context.sampleRate(), adoptPtr(new WaveShaperProcessor(context.sample
Rate(), 1)))); |
39 | 39 |
40 handler().initialize(); | 40 handler().initialize(); |
41 } | 41 } |
42 | 42 |
43 WaveShaperProcessor* WaveShaperNode::waveShaperProcessor() const | 43 WaveShaperProcessor* WaveShaperNode::getWaveShaperProcessor() const |
44 { | 44 { |
45 return static_cast<WaveShaperProcessor*>(static_cast<AudioBasicProcessorHand
ler&>(handler()).processor()); | 45 return static_cast<WaveShaperProcessor*>(static_cast<AudioBasicProcessorHand
ler&>(handler()).processor()); |
46 } | 46 } |
47 | 47 |
48 void WaveShaperNode::setCurve(DOMFloat32Array* curve, ExceptionState& exceptionS
tate) | 48 void WaveShaperNode::setCurve(DOMFloat32Array* curve, ExceptionState& exceptionS
tate) |
49 { | 49 { |
50 ASSERT(isMainThread()); | 50 ASSERT(isMainThread()); |
51 | 51 |
52 if (curve && curve->length() < 2) { | 52 if (curve && curve->length() < 2) { |
53 exceptionState.throwDOMException( | 53 exceptionState.throwDOMException( |
54 InvalidAccessError, | 54 InvalidAccessError, |
55 ExceptionMessages::indexExceedsMinimumBound<unsigned>( | 55 ExceptionMessages::indexExceedsMinimumBound<unsigned>( |
56 "curve length", | 56 "curve length", |
57 curve->length(), | 57 curve->length(), |
58 2)); | 58 2)); |
59 return; | 59 return; |
60 } | 60 } |
61 | 61 |
62 waveShaperProcessor()->setCurve(curve); | 62 getWaveShaperProcessor()->setCurve(curve); |
63 } | 63 } |
64 | 64 |
65 DOMFloat32Array* WaveShaperNode::curve() | 65 DOMFloat32Array* WaveShaperNode::curve() |
66 { | 66 { |
67 return waveShaperProcessor()->curve(); | 67 return getWaveShaperProcessor()->curve(); |
68 } | 68 } |
69 | 69 |
70 void WaveShaperNode::setOversample(const String& type) | 70 void WaveShaperNode::setOversample(const String& type) |
71 { | 71 { |
72 ASSERT(isMainThread()); | 72 ASSERT(isMainThread()); |
73 | 73 |
74 // This is to synchronize with the changes made in | 74 // This is to synchronize with the changes made in |
75 // AudioBasicProcessorNode::checkNumberOfChannelsForInput() where we can | 75 // AudioBasicProcessorNode::checkNumberOfChannelsForInput() where we can |
76 // initialize() and uninitialize(). | 76 // initialize() and uninitialize(). |
77 AbstractAudioContext::AutoLocker contextLocker(context()); | 77 AbstractAudioContext::AutoLocker contextLocker(context()); |
78 | 78 |
79 if (type == "none") { | 79 if (type == "none") { |
80 waveShaperProcessor()->setOversample(WaveShaperProcessor::OverSampleNone
); | 80 getWaveShaperProcessor()->setOversample(WaveShaperProcessor::OverSampleN
one); |
81 } else if (type == "2x") { | 81 } else if (type == "2x") { |
82 waveShaperProcessor()->setOversample(WaveShaperProcessor::OverSample2x); | 82 getWaveShaperProcessor()->setOversample(WaveShaperProcessor::OverSample2
x); |
83 } else if (type == "4x") { | 83 } else if (type == "4x") { |
84 waveShaperProcessor()->setOversample(WaveShaperProcessor::OverSample4x); | 84 getWaveShaperProcessor()->setOversample(WaveShaperProcessor::OverSample4
x); |
85 } else { | 85 } else { |
86 ASSERT_NOT_REACHED(); | 86 ASSERT_NOT_REACHED(); |
87 } | 87 } |
88 } | 88 } |
89 | 89 |
90 String WaveShaperNode::oversample() const | 90 String WaveShaperNode::oversample() const |
91 { | 91 { |
92 switch (const_cast<WaveShaperNode*>(this)->waveShaperProcessor()->oversample
()) { | 92 switch (const_cast<WaveShaperNode*>(this)->getWaveShaperProcessor()->oversam
ple()) { |
93 case WaveShaperProcessor::OverSampleNone: | 93 case WaveShaperProcessor::OverSampleNone: |
94 return "none"; | 94 return "none"; |
95 case WaveShaperProcessor::OverSample2x: | 95 case WaveShaperProcessor::OverSample2x: |
96 return "2x"; | 96 return "2x"; |
97 case WaveShaperProcessor::OverSample4x: | 97 case WaveShaperProcessor::OverSample4x: |
98 return "4x"; | 98 return "4x"; |
99 default: | 99 default: |
100 ASSERT_NOT_REACHED(); | 100 ASSERT_NOT_REACHED(); |
101 return "none"; | 101 return "none"; |
102 } | 102 } |
103 } | 103 } |
104 | 104 |
105 } // namespace blink | 105 } // namespace blink |
106 | 106 |
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