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SingWave.h
1 #ifndef STK_SINGWAVE_H
2 #define STK_SINGWAVE_H
3
4 #include "FileLoop.h"
5 #include "Modulate.h"
6 #include "Envelope.h"
7
8 namespace stk {
9
10 /***************************************************/
23 /***************************************************/
24
25 class SingWave : public Generator
26 {
27 public:
29
36 SingWave( std::string fileName, bool raw = false );
37
39 ~SingWave( void );
40
42 void reset( void ) { wave_.reset(); lastFrame_[0] = 0.0; };
43
45 void normalize( void ) { wave_.normalize(); };
46
48 void normalize( StkFloat peak ) { wave_.normalize( peak ); };
49
51 void setFrequency( StkFloat frequency );
52
54 void setVibratoRate( StkFloat rate ) { modulator_.setVibratoRate( rate ); };
55
57 void setVibratoGain( StkFloat gain ) { modulator_.setVibratoGain( gain ); };
58
60 void setRandomGain( StkFloat gain ) { modulator_.setRandomGain( gain ); };
61
63 void setSweepRate( StkFloat rate ) { sweepRate_ = rate; };
64
66 void setGainRate( StkFloat rate ) { envelope_.setRate( rate ); };
67
69 void setGainTarget( StkFloat target ) { envelope_.setTarget( target ); };
70
72 void noteOn( void ) { envelope_.keyOn(); };
73
75 void noteOff( void ) { envelope_.keyOff(); };
76
78 StkFloat lastOut( void ) const { return lastFrame_[0]; };
79
81 StkFloat tick( void );
82
84
91 StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
92
93 protected:
94
95 FileLoop wave_;
96 Modulate modulator_;
97 Envelope envelope_;
98 Envelope pitchEnvelope_;
99 StkFloat rate_;
100 StkFloat sweepRate_;
101
102 };
103
104 inline StkFloat SingWave :: tick( void )
105 {
106 // Set the wave rate.
107 StkFloat newRate = pitchEnvelope_.tick();
108 newRate += newRate * modulator_.tick();
109 wave_.setRate( newRate );
110
111 lastFrame_[0] = wave_.tick();
112 lastFrame_[0] *= envelope_.tick();
113
114 return lastFrame_[0];
115 }
116
117 inline StkFrames& SingWave :: tick( StkFrames& frames, unsigned int channel )
118 {
119 #if defined(_STK_DEBUG_)
120 if ( channel >= frames.channels() ) {
121 oStream_ << "SingWave::tick(): channel and StkFrames arguments are incompatible!";
122 handleError( StkError::FUNCTION_ARGUMENT );
123 }
124 #endif
125
126 StkFloat *samples = &frames[channel];
127 unsigned int hop = frames.channels();
128 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
129 *samples = SingWave::tick();
130
131 return frames;
132 }
133
134 } // stk namespace
135
136 #endif

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