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Mandolin.h

00001 #ifndef STK_MANDOLIN_H
00002 #define STK_MANDOLIN_H
00003 
00004 #include "Instrmnt.h"
00005 #include "Twang.h"
00006 #include "FileWvIn.h"
00007 
00008 namespace stk {
00009 
00010 /***************************************************/
00036 /***************************************************/
00037 
00038 class Mandolin : public Instrmnt
00039 {
00040  public:
00042   Mandolin( StkFloat lowestFrequency );
00043 
00045   ~Mandolin( void );
00046 
00048   void clear( void );
00049 
00051   void setDetune( StkFloat detune );
00052 
00054   void setBodySize( StkFloat size );
00055 
00057   void setPluckPosition( StkFloat position );
00058 
00060   void setFrequency( StkFloat frequency );
00061 
00063   void pluck( StkFloat amplitude );
00064 
00066   void pluck( StkFloat amplitude,StkFloat position );
00067 
00069   void noteOn( StkFloat frequency, StkFloat amplitude );
00070 
00072   void noteOff( StkFloat amplitude );
00073 
00075   void controlChange( int number, StkFloat value );
00076 
00078   StkFloat tick( unsigned int channel = 0 );
00079 
00081 
00088   StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
00089 
00090   protected:
00091 
00092   Twang strings_[2];
00093   FileWvIn soundfile_[12];
00094 
00095   int mic_;
00096   StkFloat detuning_;
00097   StkFloat frequency_;
00098   StkFloat pluckAmplitude_;
00099 };
00100 
00101 inline StkFloat Mandolin :: tick( unsigned int )
00102 {
00103   StkFloat temp = 0.0;
00104   if ( !soundfile_[mic_].isFinished() )
00105     temp = soundfile_[mic_].tick() * pluckAmplitude_;
00106 
00107   lastFrame_[0] = strings_[0].tick( temp );
00108   lastFrame_[0] += strings_[1].tick( temp );
00109   lastFrame_[0] *= 0.2;
00110 
00111   return lastFrame_[0];
00112 }
00113 
00114 inline StkFrames& Mandolin :: tick( StkFrames& frames, unsigned int channel )
00115 {
00116   unsigned int nChannels = lastFrame_.channels();
00117 #if defined(_STK_DEBUG_)
00118   if ( channel > frames.channels() - nChannels ) {
00119     oStream_ << "Mandolin::tick(): channel and StkFrames arguments are incompatible!";
00120     handleError( StkError::FUNCTION_ARGUMENT );
00121   }
00122 #endif
00123 
00124   StkFloat *samples = &frames[channel];
00125   unsigned int j, hop = frames.channels() - nChannels;
00126   if ( nChannels == 1 ) {
00127     for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
00128       *samples++ = tick();
00129   }
00130   else {
00131     for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
00132       *samples++ = tick();
00133       for ( j=1; j<nChannels; j++ )
00134         *samples++ = lastFrame_[j];
00135     }
00136   }
00137 
00138   return frames;
00139 }
00140 
00141 } // stk namespace
00142 
00143 #endif

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