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Whistle.h
1 #ifndef STK_WHISTLE_H
2 #define STK_WHISTLE_H
3 
4 #include "Instrmnt.h"
5 #include "Sphere.h"
6 #include "Vector3D.h"
7 #include "Noise.h"
8 #include "SineWave.h"
9 #include "OnePole.h"
10 #include "Envelope.h"
11 
12 namespace stk {
13 
14 /***************************************************/
30 /***************************************************/
31 
32 class Whistle : public Instrmnt
33 {
34 public:
36 
39  Whistle( void );
40 
42  ~Whistle( void );
43 
45  void clear( void );
46 
48  void setFrequency( StkFloat frequency );
49 
51  void startBlowing( StkFloat amplitude, StkFloat rate );
52 
54  void stopBlowing( StkFloat rate );
55 
57  void noteOn( StkFloat frequency, StkFloat amplitude );
58 
60  void noteOff( StkFloat amplitude );
61 
63  void controlChange( int number, StkFloat value );
64 
66  StkFloat tick( unsigned int channel = 0 );
67 
69 
76  StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
77 
78 protected:
79 
80  Vector3D *tempVectorP_;
81  Vector3D tempVector_;
82  OnePole onepole_;
83  Noise noise_;
84  Envelope envelope_;
85  Sphere can_; // Declare a Spherical "can".
86  Sphere pea_, bumper_; // One spherical "pea", and a spherical "bumper".
87 
88  SineWave sine_;
89 
90  StkFloat baseFrequency_;
91  StkFloat noiseGain_;
92  StkFloat fippleFreqMod_;
93  StkFloat fippleGainMod_;
94  StkFloat blowFreqMod_;
95  StkFloat tickSize_;
96  StkFloat canLoss_;
97  int subSample_, subSampCount_;
98 };
99 
100 inline StkFrames& Whistle :: tick( StkFrames& frames, unsigned int channel )
101 {
102  unsigned int nChannels = lastFrame_.channels();
103 #if defined(_STK_DEBUG_)
104  if ( channel > frames.channels() - nChannels ) {
105  oStream_ << "Whistle::tick(): channel and StkFrames arguments are incompatible!";
106  handleError( StkError::FUNCTION_ARGUMENT );
107  }
108 #endif
109 
110  StkFloat *samples = &frames[channel];
111  unsigned int j, hop = frames.channels() - nChannels;
112  if ( nChannels == 1 ) {
113  for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
114  *samples++ = tick();
115  }
116  else {
117  for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
118  *samples++ = tick();
119  for ( j=1; j<nChannels; j++ )
120  *samples++ = lastFrame_[j];
121  }
122  }
123 
124  return frames;
125 }
126 
127 } // stk namespace
128 #endif

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