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