| OLD | NEW |
| 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 |
| (...skipping 34 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 45 // The waveform type. | 45 // The waveform type. |
| 46 // These must be defined as in the .idl file. | 46 // These must be defined as in the .idl file. |
| 47 enum { | 47 enum { |
| 48 SINE = 0, | 48 SINE = 0, |
| 49 SQUARE = 1, | 49 SQUARE = 1, |
| 50 SAWTOOTH = 2, | 50 SAWTOOTH = 2, |
| 51 TRIANGLE = 3, | 51 TRIANGLE = 3, |
| 52 CUSTOM = 4 | 52 CUSTOM = 4 |
| 53 }; | 53 }; |
| 54 | 54 |
| 55 static PassRefPtr<OscillatorNode> create(AudioContext*, float sampleRate); | 55 static PassRefPtrWillBeRawPtr<OscillatorNode> create(AudioContext*, float sa
mpleRate); |
| 56 | 56 |
| 57 virtual ~OscillatorNode(); | 57 virtual ~OscillatorNode(); |
| 58 | 58 |
| 59 // AudioNode | 59 // AudioNode |
| 60 virtual void process(size_t framesToProcess) OVERRIDE; | 60 virtual void process(size_t framesToProcess) OVERRIDE; |
| 61 | 61 |
| 62 String type() const; | 62 String type() const; |
| 63 | 63 |
| 64 bool setType(unsigned); // Returns true on success. | 64 bool setType(unsigned); // Returns true on success. |
| 65 void setType(const String&); | 65 void setType(const String&); |
| 66 | 66 |
| 67 AudioParam* frequency() { return m_frequency.get(); } | 67 AudioParam* frequency() { return m_frequency.get(); } |
| 68 AudioParam* detune() { return m_detune.get(); } | 68 AudioParam* detune() { return m_detune.get(); } |
| 69 | 69 |
| 70 void setPeriodicWave(PeriodicWave*); | 70 void setPeriodicWave(PeriodicWave*); |
| 71 | 71 |
| 72 virtual void trace(Visitor*) OVERRIDE; |
| 73 |
| 72 private: | 74 private: |
| 73 OscillatorNode(AudioContext*, float sampleRate); | 75 OscillatorNode(AudioContext*, float sampleRate); |
| 74 | 76 |
| 75 // Returns true if there are sample-accurate timeline parameter changes. | 77 // Returns true if there are sample-accurate timeline parameter changes. |
| 76 bool calculateSampleAccuratePhaseIncrements(size_t framesToProcess); | 78 bool calculateSampleAccuratePhaseIncrements(size_t framesToProcess); |
| 77 | 79 |
| 78 virtual bool propagatesSilence() const OVERRIDE; | 80 virtual bool propagatesSilence() const OVERRIDE; |
| 79 | 81 |
| 80 // One of the waveform types defined in the enum. | 82 // One of the waveform types defined in the enum. |
| 81 unsigned short m_type; | 83 unsigned short m_type; |
| 82 | 84 |
| 83 // Frequency value in Hertz. | 85 // Frequency value in Hertz. |
| 84 RefPtr<AudioParam> m_frequency; | 86 RefPtrWillBeMember<AudioParam> m_frequency; |
| 85 | 87 |
| 86 // Detune value (deviating from the frequency) in Cents. | 88 // Detune value (deviating from the frequency) in Cents. |
| 87 RefPtr<AudioParam> m_detune; | 89 RefPtrWillBeMember<AudioParam> m_detune; |
| 88 | 90 |
| 89 bool m_firstRender; | 91 bool m_firstRender; |
| 90 | 92 |
| 91 // m_virtualReadIndex is a sample-frame index into our buffer representing t
he current playback position. | 93 // m_virtualReadIndex is a sample-frame index into our buffer representing t
he current playback position. |
| 92 // Since it's floating-point, it has sub-sample accuracy. | 94 // Since it's floating-point, it has sub-sample accuracy. |
| 93 double m_virtualReadIndex; | 95 double m_virtualReadIndex; |
| 94 | 96 |
| 95 // This synchronizes process(). | 97 // This synchronizes process(). |
| 96 mutable Mutex m_processLock; | 98 mutable Mutex m_processLock; |
| 97 | 99 |
| 98 // Stores sample-accurate values calculated according to frequency and detun
e. | 100 // Stores sample-accurate values calculated according to frequency and detun
e. |
| 99 AudioFloatArray m_phaseIncrements; | 101 AudioFloatArray m_phaseIncrements; |
| 100 AudioFloatArray m_detuneValues; | 102 AudioFloatArray m_detuneValues; |
| 101 | 103 |
| 102 RefPtr<PeriodicWave> m_periodicWave; | 104 RefPtrWillBeMember<PeriodicWave> m_periodicWave; |
| 103 }; | 105 }; |
| 104 | 106 |
| 105 } // namespace WebCore | 107 } // namespace WebCore |
| 106 | 108 |
| 107 #endif // OscillatorNode_h | 109 #endif // OscillatorNode_h |
| OLD | NEW |