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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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