1 files changed, 86 insertions, 0 deletions
diff --git a/src/mdaPianoVoice.cpp b/src/mdaPianoVoice.cpp
index 633fb5a..a1f9529 100644
--- a/src/mdaPianoVoice.cpp
+++ b/src/mdaPianoVoice.cpp
@@ -119,3 +119,89 @@ mdaPianoVoice::on(unsigned char note, unsigned char velocity)
     }
   }
 }
+
+
+void mdaPianoVoice::process(float **inputs, float **outputs, uint32_t sampleFrames)
+{
+  float* out0 = outputs[0];
+  float* out1 = outputs[1];
+  uint32_t event=0, frame=0, frames, v;
+  float x, l, r;
+  uint32_t i;
+
+  while(frame<sampleFrames)
+  {
+    frames = notes[event++];
+    if(frames>sampleFrames) frames = sampleFrames;
+    frames -= frame;
+    frame += frames;
+
+    while(--frames>=0)
+    {
+      VOICE *V = voice;
+      l = r = 0.0f;
+
+      for(v=0; v<activevoices; v++)
+      {
+        V->frac += V->delta;  //integer-based linear interpolation
+        V->pos += V->frac >> 16;
+        V->frac &= 0xFFFF;
+        if(V->pos > V->end) V->pos -= V->loop;
+
+        i = waves[V->pos];
+        i = (i << 7) + (V->frac >> 9) * (waves[V->pos + 1] - i) + 0x40400000;
+        x = V->env * (*(float *)&i - 3.0f);  //fast int->float
+
+        /////////////////////
+        //TODO: This was used in processReplacing instead of the above
+        /*
+        //i = (i << 7) + (V->frac >> 9) * (waves[V->pos + 1] - i) + 0x40400000;   //not working on intel mac !?!
+  i = waves[V->pos] + ((V->frac * (waves[V->pos + 1] - waves[V->pos])) >> 16);
+  x = V->env * (float)i / 32768.0f;
+        //x = V->env * (*(float *)&i - 3.0f);  //fast int->float
+        */
+        /////////////////////
+
+        V->env = V->env * V->dec;  //envelope
+        V->f0 += V->ff * (x + V->f1 - V->f0);  //muffle filter
+        V->f1 = x;
+
+        l += V->outl * V->f0;
+        r += V->outr * V->f0;
+
+        //TODO: this was used in processReplacing
+        /////////////////////
+        /*
+ if(!(l > -2.0f) || !(l < 2.0f))
+ {
+   printf("what is this shit?   %d,  %f,  %f\n", i, x, V->f0);
+   l = 0.0f;
+ }
+if(!(r > -2.0f) || !(r < 2.0f))
+ {
+   r = 0.0f;
+ }
+        */
+        /////////////////////
+
+        V++;
+      }
+      comb[cpos] = l + r;
+      ++cpos &= cmax;
+      x = cdep * comb[cpos];  //stereo simulator
+
+      // TODO: processReplacing simply assigned instead of adding
+      *out0++ += l + x;
+      *out1++ += r - x;
+    }
+
+    if(frame<sampleFrames)
+    {
+      uint32_t note = notes[event++];
+      uint32_t vel  = notes[event++];
+      noteOn(note, vel);
+    }
+  }
+  for(v=0; v<activevoices; v++) if(voice[v].env < SILENCE) voice[v] = voice[--activevoices];
+  notes[0] = EVENTS_DONE;  //mark events buffer as done
+}