Version 3.2

include/FM4Op.h

@@ -0,0 +1,59 @@
+/*******************************************/
+/*  Master Class for 4 Operator FM Synth   */
+/*  by Perry R. Cook, 1995-96              */ 
+/*  This instrument contains an 4 waves,   */
+/*  4 envelopes, and various state vars.   */
+/*                                         */
+/*  The basic Chowning/Stanford FM patent  */
+/*  expired April 1995, but there exist    */
+/*  follow-on patents, mostly assigned to  */
+/*  Yamaha.  If you are of the type who    */
+/*  should worry about this (making money) */
+/*  worry away.                            */
+/*                                         */
+/*******************************************/
+
+#if !defined(__FM4Op_h)
+#define __FM4Op_h
+
+#include "Instrmnt.h"
+#include "ADSR.h"
+#include "RawWvIn.h"
+#include "TwoZero.h"
+
+class FM4Op : public Instrmnt
+{
+ protected:  
+  ADSR    *adsr[4]; 
+  RawWvIn *waves[4];
+  RawWvIn *vibWave;
+  TwoZero *twozero;
+  MY_FLOAT baseFreq;
+  MY_FLOAT ratios[4];
+  MY_FLOAT gains[4];
+  MY_FLOAT modDepth;
+  MY_FLOAT control1;
+  MY_FLOAT control2;
+  MY_FLOAT __FM4Op_gains[100];
+  MY_FLOAT __FM4Op_susLevels[16];
+  MY_FLOAT __FM4Op_attTimes[32];
+ public:
+  FM4Op();
+  virtual ~FM4Op();
+  void loadWaves(char* wave1, char* wave2, char* wave3, char* wave4);
+  void clear();
+  void setFreq(MY_FLOAT frequency);
+  void setRatio(int whichOne, MY_FLOAT ratio);
+  void setGain(int whichOne, MY_FLOAT gain);
+  void keyOn();
+  void keyOff();
+  void noteOff(MY_FLOAT amp);
+  /*  There's no tick() method here, because that depends on the algorithm  */
+  void setModulationSpeed(MY_FLOAT mSpeed);
+  void setModulationDepth(MY_FLOAT mDepth);
+  void setControl1(MY_FLOAT cVal);
+  void setControl2(MY_FLOAT cVal);
+  virtual void controlChange(int number, MY_FLOAT value);
+};
+
+#endif