fceux/mappers/emu2413.h

135 lines
2.8 KiB
C

#ifndef _EMU2413_H_
#define _EMU2413_H_
#include "emutypes.h"
#ifdef EMU2413_DLL_EXPORTS
#define EMU2413_API __declspec(dllexport)
#elif defined(EMU2413_DLL_IMPORTS)
#define EMU2413_API __declspec(dllimport)
#else
#define EMU2413_API
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define PI 3.14159265358979323846
enum {OPLL_VRC7_TONE=0} ;
/* voice data */
typedef struct {
e_uint32 TL,FB,EG,ML,AR,DR,SL,RR,KR,KL,AM,PM,WF ;
} OPLL_PATCH ;
/* slot */
typedef struct {
OPLL_PATCH patch;
e_int32 type ; /* 0 : modulator 1 : carrier */
/* OUTPUT */
e_int32 feedback ;
e_int32 output[2] ; /* Output value of slot */
/* for Phase Generator (PG) */
e_uint16 *sintbl ; /* Wavetable */
e_uint32 phase ; /* Phase */
e_uint32 dphase ; /* Phase increment amount */
e_uint32 pgout ; /* output */
/* for Envelope Generator (EG) */
e_int32 fnum ; /* F-Number */
e_int32 block ; /* Block */
e_int32 volume ; /* Current volume */
e_int32 sustine ; /* Sustine 1 = ON, 0 = OFF */
e_uint32 tll ; /* Total Level + Key scale level*/
e_uint32 rks ; /* Key scale offset (Rks) */
e_int32 eg_mode ; /* Current state */
e_uint32 eg_phase ; /* Phase */
e_uint32 eg_dphase ; /* Phase increment amount */
e_uint32 egout ; /* output */
} OPLL_SLOT ;
/* Mask */
#define OPLL_MASK_CH(x) (1<<(x))
/* opll */
typedef struct {
e_uint32 adr ;
e_int32 out ;
#ifndef EMU2413_COMPACTION
e_uint32 realstep ;
e_uint32 oplltime ;
e_uint32 opllstep ;
e_int32 prev, next ;
#endif
/* Register */
e_uint8 LowFreq[6];
e_uint8 HiFreq[6];
e_uint8 InstVol[6];
e_uint8 CustInst[8];
e_int32 slot_on_flag[6 * 2] ;
/* Pitch Modulator */
e_uint32 pm_phase ;
e_int32 lfo_pm ;
/* Amp Modulator */
e_int32 am_phase ;
e_int32 lfo_am ;
e_uint32 quality;
/* Channel Data */
e_int32 patch_number[6];
e_int32 key_status[6] ;
/* Slot */
OPLL_SLOT slot[6 * 2] ;
e_uint32 mask ;
} OPLL ;
/* Create Object */
EMU2413_API OPLL *OPLL_new(e_uint32 clk, e_uint32 rate) ;
EMU2413_API void OPLL_delete(OPLL *) ;
/* Setup */
EMU2413_API void OPLL_reset(OPLL *) ;
EMU2413_API void OPLL_set_rate(OPLL *opll, e_uint32 r) ;
EMU2413_API void OPLL_set_quality(OPLL *opll, e_uint32 q) ;
/* Port/Register access */
EMU2413_API void OPLL_writeIO(OPLL *, e_uint32 reg, e_uint32 val) ;
EMU2413_API void OPLL_writeReg(OPLL *, e_uint32 reg, e_uint32 val) ;
/* Synthsize */
EMU2413_API e_int16 OPLL_calc(OPLL *) ;
/* Misc */
EMU2413_API void OPLL_forceRefresh(OPLL *) ;
/* Channel Mask */
EMU2413_API e_uint32 OPLL_setMask(OPLL *, e_uint32 mask) ;
EMU2413_API e_uint32 OPLL_toggleMask(OPLL *, e_uint32 mask) ;
void moocow(OPLL* opll, e_int32 *buf, e_int32 len, int shift);
#ifdef __cplusplus
}
#endif
#endif