mirror of
https://github.com/dborth/fceugx.git
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151 lines
2.8 KiB
C
151 lines
2.8 KiB
C
#ifndef _EMU2413_H_
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#define _EMU2413_H_
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#ifndef INLINE
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#if defined(_MSC_VER)
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#define INLINE __forceinline
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#elif defined(__GNUC__)
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#define INLINE __inline__
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#elif defined(_MWERKS_)
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#define INLINE inline
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#else
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#define INLINE
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#endif
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef GEKKO
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typedef uint8_t uint8 ;
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typedef int8_t int8 ;
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typedef uint16_t uint16 ;
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typedef int16_t int16 ;
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typedef uint32_t uint32 ;
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typedef int32_t int32 ;
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#else
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typedef unsigned char uint8 ;
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typedef signed char int8 ;
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typedef unsigned short uint16 ;
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typedef signed short int16 ;
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typedef unsigned int uint32 ;
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typedef signed int int32 ;
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#endif
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#define PI 3.14159265358979323846
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enum { OPLL_VRC7_TONE=0 };
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/* voice data */
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typedef struct {
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uint32 TL, FB, EG, ML, AR, DR, SL, RR, KR, KL, AM, PM, WF;
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} OPLL_PATCH;
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/* slot */
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typedef struct {
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OPLL_PATCH patch;
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int32 type; /* 0 : modulator 1 : carrier */
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/* OUTPUT */
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int32 feedback;
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int32 output[2]; /* Output value of slot */
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/* for Phase Generator (PG) */
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uint16 *sintbl; /* Wavetable */
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uint32 phase; /* Phase */
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uint32 dphase; /* Phase increment amount */
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uint32 pgout; /* output */
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/* for Envelope Generator (EG) */
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int32 fnum; /* F-Number */
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int32 block; /* Block */
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int32 volume; /* Current volume */
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int32 sustine; /* Sustine 1 = ON, 0 = OFF */
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uint32 tll; /* Total Level + Key scale level*/
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uint32 rks; /* Key scale offset (Rks) */
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int32 eg_mode; /* Current state */
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uint32 eg_phase; /* Phase */
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uint32 eg_dphase; /* Phase increment amount */
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uint32 egout; /* output */
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} OPLL_SLOT;
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/* Mask */
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#define OPLL_MASK_CH(x) (1 << (x))
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/* opll */
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typedef struct {
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uint32 adr;
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int32 out;
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uint32 realstep;
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uint32 oplltime;
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uint32 opllstep;
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int32 prev, next;
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/* Register */
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uint8 LowFreq[6];
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uint8 HiFreq[6];
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uint8 InstVol[6];
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uint8 CustInst[8];
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int32 slot_on_flag[6 * 2];
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/* Pitch Modulator */
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uint32 pm_phase;
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int32 lfo_pm;
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/* Amp Modulator */
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int32 am_phase;
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int32 lfo_am;
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uint32 quality;
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/* Channel Data */
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int32 patch_number[6];
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int32 key_status[6];
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/* Slot */
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OPLL_SLOT slot[6 * 2];
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uint32 mask;
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} OPLL;
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/* Create Object */
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OPLL *OPLL_new(uint32 clk, uint32 rate);
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void OPLL_delete(OPLL *);
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/* Setup */
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void OPLL_reset(OPLL *);
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void OPLL_set_rate(OPLL *opll, uint32 r);
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void OPLL_set_quality(OPLL *opll, uint32 q);
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/* Port/Register access */
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void OPLL_writeIO(OPLL *, uint32 reg, uint32 val);
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void OPLL_writeReg(OPLL *, uint32 reg, uint32 val);
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/* Synthsize */
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int16 OPLL_calc(OPLL *);
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/* Misc */
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void OPLL_forceRefresh(OPLL *);
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/* Channel Mask */
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uint32 OPLL_setMask(OPLL *, uint32 mask);
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uint32 OPLL_toggleMask(OPLL *, uint32 mask);
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void OPLL_fillbuf(OPLL* opll, int32 *buf, int32 len, int shift);
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#ifdef __cplusplus
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}
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#endif
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#endif
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