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1 /* | 1 /* |
2 * Copyright (C) 2012, Google Inc. All rights reserved. | 2 * Copyright (C) 2012, 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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47 } | 47 } |
48 | 48 |
49 OscillatorNode::OscillatorNode(AudioContext* context, float sampleRate) | 49 OscillatorNode::OscillatorNode(AudioContext* context, float sampleRate) |
50 : AudioScheduledSourceNode(context, sampleRate) | 50 : AudioScheduledSourceNode(context, sampleRate) |
51 , m_type(SINE) | 51 , m_type(SINE) |
52 , m_firstRender(true) | 52 , m_firstRender(true) |
53 , m_virtualReadIndex(0) | 53 , m_virtualReadIndex(0) |
54 , m_phaseIncrements(AudioNode::ProcessingSizeInFrames) | 54 , m_phaseIncrements(AudioNode::ProcessingSizeInFrames) |
55 , m_detuneValues(AudioNode::ProcessingSizeInFrames) | 55 , m_detuneValues(AudioNode::ProcessingSizeInFrames) |
56 { | 56 { |
57 ScriptWrappable::init(this); | |
58 setNodeType(NodeTypeOscillator); | 57 setNodeType(NodeTypeOscillator); |
59 | 58 |
60 // Use musical pitch standard A440 as a default. | 59 // Use musical pitch standard A440 as a default. |
61 m_frequency = AudioParam::create(context, 440); | 60 m_frequency = AudioParam::create(context, 440); |
62 // Default to no detuning. | 61 // Default to no detuning. |
63 m_detune = AudioParam::create(context, 0); | 62 m_detune = AudioParam::create(context, 0); |
64 | 63 |
65 // Sets up default wavetable. | 64 // Sets up default wavetable. |
66 setType(m_type); | 65 setType(m_type); |
67 | 66 |
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349 { | 348 { |
350 visitor->trace(m_frequency); | 349 visitor->trace(m_frequency); |
351 visitor->trace(m_detune); | 350 visitor->trace(m_detune); |
352 visitor->trace(m_periodicWave); | 351 visitor->trace(m_periodicWave); |
353 AudioScheduledSourceNode::trace(visitor); | 352 AudioScheduledSourceNode::trace(visitor); |
354 } | 353 } |
355 | 354 |
356 } // namespace blink | 355 } // namespace blink |
357 | 356 |
358 #endif // ENABLE(WEB_AUDIO) | 357 #endif // ENABLE(WEB_AUDIO) |
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