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00001 #ifndef STK_BEETHREE_H 00002 #define STK_BEETHREE_H 00003 00004 #include "FM.h" 00005 00006 namespace stk { 00007 00008 /***************************************************/ 00040 /***************************************************/ 00041 00042 class BeeThree : public FM 00043 { 00044 public: 00046 00049 BeeThree( void ); 00050 00052 ~BeeThree( void ); 00053 00055 void noteOn( StkFloat frequency, StkFloat amplitude ); 00056 00058 StkFloat tick( unsigned int channel = 0 ); 00059 00061 00068 StkFrames& tick( StkFrames& frames, unsigned int channel = 0 ); 00069 00070 protected: 00071 00072 }; 00073 00074 inline StkFloat BeeThree :: tick( unsigned int ) 00075 { 00076 register StkFloat temp; 00077 00078 if ( modDepth_ > 0.0 ) { 00079 temp = 1.0 + ( modDepth_ * vibrato_.tick() * 0.1 ); 00080 waves_[0]->setFrequency( baseFrequency_ * temp * ratios_[0] ); 00081 waves_[1]->setFrequency( baseFrequency_ * temp * ratios_[1] ); 00082 waves_[2]->setFrequency( baseFrequency_ * temp * ratios_[2] ); 00083 waves_[3]->setFrequency( baseFrequency_ * temp * ratios_[3] ); 00084 } 00085 00086 waves_[3]->addPhaseOffset( twozero_.lastOut() ); 00087 temp = control1_ * 2.0 * gains_[3] * adsr_[3]->tick() * waves_[3]->tick(); 00088 twozero_.tick( temp ); 00089 00090 temp += control2_ * 2.0 * gains_[2] * adsr_[2]->tick() * waves_[2]->tick(); 00091 temp += gains_[1] * adsr_[1]->tick() * waves_[1]->tick(); 00092 temp += gains_[0] * adsr_[0]->tick() * waves_[0]->tick(); 00093 00094 lastFrame_[0] = temp * 0.125; 00095 return lastFrame_[0]; 00096 } 00097 00098 inline StkFrames& BeeThree :: tick( StkFrames& frames, unsigned int channel ) 00099 { 00100 unsigned int nChannels = lastFrame_.channels(); 00101 #if defined(_STK_DEBUG_) 00102 if ( channel > frames.channels() - nChannels ) { 00103 oStream_ << "BeeThree::tick(): channel and StkFrames arguments are incompatible!"; 00104 handleError( StkError::FUNCTION_ARGUMENT ); 00105 } 00106 #endif 00107 00108 StkFloat *samples = &frames[channel]; 00109 unsigned int j, hop = frames.channels() - nChannels; 00110 if ( nChannels == 1 ) { 00111 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) 00112 *samples++ = tick(); 00113 } 00114 else { 00115 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) { 00116 *samples++ = tick(); 00117 for ( j=1; j<nChannels; j++ ) 00118 *samples++ = lastFrame_[j]; 00119 } 00120 } 00121 00122 return frames; 00123 } 00124 00125 } // stk namespace 00126 00127 #endif
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