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HevyMetl.h
1 #ifndef STK_HEVYMETL_H
2 #define STK_HEVYMETL_H
3 
4 #include "FM.h"
5 
6 namespace stk {
7 
8 /***************************************************/
36 /***************************************************/
37 
38 class HevyMetl : public FM
39 {
40  public:
42 
45  HevyMetl( void );
46 
48  ~HevyMetl( void );
49 
51  void noteOn( StkFloat frequency, StkFloat amplitude );
52 
54  StkFloat tick( unsigned int channel = 0 );
55 
57 
64  StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
65 
66  protected:
67 
68 };
69 
70 inline StkFloat HevyMetl :: tick( unsigned int )
71 {
72  StkFloat temp;
73 
74  temp = vibrato_.tick() * modDepth_ * 0.2;
75  waves_[0]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[0]);
76  waves_[1]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[1]);
77  waves_[2]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[2]);
78  waves_[3]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[3]);
79 
80  temp = gains_[2] * adsr_[2]->tick() * waves_[2]->tick();
81  waves_[1]->addPhaseOffset( temp );
82 
83  waves_[3]->addPhaseOffset( twozero_.lastOut() );
84  temp = (1.0 - (control2_ * 0.5)) * gains_[3] * adsr_[3]->tick() * waves_[3]->tick();
85  twozero_.tick(temp);
86 
87  temp += control2_ * 0.5 * gains_[1] * adsr_[1]->tick() * waves_[1]->tick();
88  temp = temp * control1_;
89 
90  waves_[0]->addPhaseOffset( temp );
91  temp = gains_[0] * adsr_[0]->tick() * waves_[0]->tick();
92 
93  lastFrame_[0] = temp * 0.5;
94  return lastFrame_[0];
95 }
96 
97 inline StkFrames& HevyMetl :: tick( StkFrames& frames, unsigned int channel )
98 {
99  unsigned int nChannels = lastFrame_.channels();
100 #if defined(_STK_DEBUG_)
101  if ( channel > frames.channels() - nChannels ) {
102  oStream_ << "HevyMetl::tick(): channel and StkFrames arguments are incompatible!";
103  handleError( StkError::FUNCTION_ARGUMENT );
104  }
105 #endif
106 
107  StkFloat *samples = &frames[channel];
108  unsigned int j, hop = frames.channels() - nChannels;
109  if ( nChannels == 1 ) {
110  for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
111  *samples++ = tick();
112  }
113  else {
114  for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
115  *samples++ = tick();
116  for ( j=1; j<nChannels; j++ )
117  *samples++ = lastFrame_[j];
118  }
119  }
120 
121  return frames;
122 }
123 
124 } // stk namespace
125 
126 #endif

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