src/event.h

   1 //
   2 // EVENT.H: System timing support functionality
   3 //
   4 // by James Hammons
   5 //
   6
   7 #ifndef __EVENT_H__
   8 #define __EVENT_H__
   9
  10 enum { EVENT_MAIN, EVENT_JERRY };
  11
  12 //NTSC Timings...
  13 #define RISC_CYCLE_IN_USEC                      0.03760684198
  14 #define M68K_CYCLE_IN_USEC                      (RISC_CYCLE_IN_USEC * 2)
  15 //PAL Timings
  16 #define RISC_CYCLE_PAL_IN_USEC          0.03760260812
  17 #define M68K_CYCLE_PAL_IN_USEC          (RISC_CYCLE_PAL_IN_USEC * 2)
  18
  19 #define HORIZ_PERIOD_IN_USEC_NTSC       63.555555555
  20 #define HORIZ_PERIOD_IN_USEC_PAL        64.0
  21
  22 #define USEC_TO_RISC_CYCLES(u) (uint32_t)(((u) / (vjs.hardwareTypeNTSC ? RISC_CYCLE_IN_USEC : RISC_CYCLE_PAL_IN_USEC)) + 0.5)
  23 #define USEC_TO_M68K_CYCLES(u) (uint32_t)(((u) / (vjs.hardwareTypeNTSC ? M68K_CYCLE_IN_USEC : M68K_CYCLE_PAL_IN_USEC)) + 0.5)
  24
  25 void InitializeEventList(void);
  26 void SetCallbackTime(void (* callback)(void), double time, int type = EVENT_MAIN);
  27 void RemoveCallback(void (* callback)(void));
  28 void AdjustCallbackTime(void (* callback)(void), double time);
  29 double GetTimeToNextEvent(int type = EVENT_MAIN);
  30 void HandleNextEvent(int type = EVENT_MAIN);
  31
  32 #endif  // __EVENT_H__