Phasor / ramp oscillator

Author: Martin Klang

LibSource/Phasor.h

@@ -0,0 +1,57 @@
+#ifndef PHASOR_H
+#define PHASOR_H
+
+#include "Oscillator.h"
+
+class Phasor : public Oscillator {
+private:
+  float mul;
+  float phase;
+  float incr;
+public:
+  Phasor() : phase(0.0f), incr(0.0f) {    
+    setSampleRate(48000);
+  }
+  Phasor(float sr) : phase(0.0f), incr(0.0f){
+    setSampleRate(sr);
+  }    
+  void setSampleRate(float sr){
+    mul = 1.0f/sr;
+  }
+  void setFrequency(float freq){
+    incr = freq*mul;
+  }
+  void setPhase(float ph){
+    phase = ph;
+    while(phase >= 1)
+      phase -= 1;
+  }
+  void reset(){
+    phase = 0.0f;
+  }
+  float getPhase(){
+    return phase;
+  }
+  float getNextSample(){
+    float sample = phase;
+    phase += incr;
+    if(phase >= 1.0f)
+      phase -= 1.0f;
+    return sample;
+  }
+  float getNextSample(float fm){
+    float sample = phase;
+    phase += incr + fm;
+    if(phase >= 1.0f)
+      phase -= 1.0f;
+    return sample;
+  }  
+  static Phasor* create(float sr){
+    return new Phasor(sr);
+  }
+  static void destroy(Phasor* osc){
+    delete osc;
+  }
+};
+
+#endif /* PHASOR_H */