Version 3.2

src/Sampler.cpp

@@ -0,0 +1,63 @@
+/*******************************************/
+/*  Master Class for Sampling Synthesizer  */
+/*  by Perry R. Cook, 1995-96              */ 
+/*  This instrument contains up to 5       */
+/*  attack waves, 5 looped waves, and      */
+/*  an ADSR envelope.                      */
+/*******************************************/
+
+#include "Sampler.h"
+
+Sampler :: Sampler()
+{
+  adsr = new ADSR;
+  /*  We don't make the waves here yet, because */
+  /*  we don't know what they will be.          */
+  baseFreq = (MY_FLOAT) 440.0;
+  filter = new OnePole;
+  attackGain = (MY_FLOAT) 0.25;
+  loopGain = (MY_FLOAT) 0.25;
+  whichOne = 0;
+}  
+
+Sampler :: ~Sampler()
+{
+  delete adsr;
+  delete filter;
+}
+
+void Sampler :: keyOn()
+{
+  adsr->keyOn();
+  attacks[0]->reset();
+}
+
+void Sampler :: keyOff()
+{
+  adsr->keyOff();
+}
+
+void Sampler :: noteOff(MY_FLOAT amplitude)
+{
+  this->keyOff();
+#if defined(_debug_)        
+  printf("Sampler : NoteOff: Amp=%lf\n",amplitude);
+#endif    
+}
+
+void Sampler :: setFreq(MY_FLOAT frequency)
+{
+}
+
+MY_FLOAT Sampler :: tick()
+{
+  lastOutput = attackGain * attacks[whichOne]->tick();
+  lastOutput += loopGain * loops[whichOne]->tick();
+  lastOutput = filter->tick(lastOutput);
+  lastOutput *= adsr->tick();
+  return lastOutput;
+}
+
+void Sampler :: controlChange(int number, MY_FLOAT value)
+{
+}