interpretor/faust-0.9.47mr3/architecture/audio/oscdsp.h

   1
   2 #ifndef __osc_dsp__
   3 #define __osc_dsp__
   4
   5 #include <stdio.h>
   6 #include "audio/audio.h"
   7 #include "audio/dsp.h"
   8 #include "OSCIO.h"
   9
  10 /******************************************************************************
  11 *******************************************************************************
  12
  13                                                         OSC AUDIO INTERFACE
  14
  15 *******************************************************************************
  16 *******************************************************************************/
  17
  18 #define kMaxBuffer 4096
  19
  20 class oscdsp : public audio, public oscfaust::OSCIO {
  21         dsp*     fDsp;
  22         float ** fInBuffers, **fOutBuffers;
  23
  24  public:
  25                          oscdsp(const char * dst, int argc, char *argv[]) : OSCIO(dst), fDsp(0), fInBuffers(0), fOutBuffers(0)
  26                          {
  27                                 for (int i = 1; i < argc-1; i++)
  28                                         if (!strcmp(argv[i], "-iodst")) setDest (argv[i+1]);
  29                          }
  30         virtual ~oscdsp() { stop(); }
  31
  32         virtual bool init(const char*name, dsp* DSP) {
  33                 fDsp = DSP;
  34                 fDsp->init(44100);
  35                 fInBuffers  = new float*[numInputs()];
  36                 fOutBuffers = new float*[numOutputs()];
  37                 for (int i= 0; i < numInputs(); i++)
  38                         fInBuffers[i] = new float[kMaxBuffer];
  39                 for (int i= 0; i < numOutputs(); i++)
  40                         fOutBuffers [i] = new float[kMaxBuffer];
  41                 return true;
  42         }
  43
  44         virtual bool start()    { return true; }
  45         virtual void stop()             {}
  46
  47         void compute( int nframes ) {
  48                 fDsp->compute(nframes, fInBuffers, fOutBuffers);
  49                 for (int i= 0; i < numOutputs(); i++)
  50                         send( nframes, fOutBuffers [i], i);
  51         }
  52
  53         void receive( int nvalues, float * val ) {
  54                 int inChans = numInputs();
  55                 if (!inChans) {
  56                         compute(nvalues);
  57                         return;
  58                 }
  59
  60                 for (int i=0; i < nvalues; i++) {
  61                         int c = i % inChans;
  62                         int frame = i / inChans;
  63                         fInBuffers[c][frame] = val[i];
  64                 }
  65                 compute (nvalues / inChans);
  66         }
  67         int             numOutputs() const      { return fDsp ? fDsp->getNumOutputs() : 0; }
  68         int             numInputs() const       { return fDsp ? fDsp->getNumInputs() : 0; }
  69 };
  70
  71 #endif