ref: 07afb7749ff807118431ea356ab56364ef8cfee8
dir: /opl/opl3.h/
// // Copyright (C) 2013-2016 Alexey Khokholov (Nuke.YKT) // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 2 // of the License, or (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // // Nuked OPL3 emulator. // Thanks: // MAME Development Team(Jarek Burczynski, Tatsuyuki Satoh): // Feedback and Rhythm part calculation information. // forums.submarine.org.uk(carbon14, opl3): // Tremolo and phase generator calculation information. // OPLx decapsulated(Matthew Gambrell, Olli Niemitalo): // OPL2 ROMs. // // version: 1.7 // #ifndef OPL_OPL3_H #define OPL_OPL3_H #include <inttypes.h> #define OPL_WRITEBUF_SIZE 1024 #define OPL_WRITEBUF_DELAY 2 typedef uintptr_t Bitu; typedef intptr_t Bits; typedef uint64_t Bit64u; typedef int64_t Bit64s; typedef uint32_t Bit32u; typedef int32_t Bit32s; typedef uint16_t Bit16u; typedef int16_t Bit16s; typedef uint8_t Bit8u; typedef int8_t Bit8s; typedef struct _opl3_slot opl3_slot; typedef struct _opl3_channel opl3_channel; typedef struct _opl3_chip opl3_chip; struct _opl3_slot { opl3_channel *channel; opl3_chip *chip; Bit16s out; Bit16s fbmod; Bit16s *mod; Bit16s prout; Bit16s eg_rout; Bit16s eg_out; Bit8u eg_inc; Bit8u eg_gen; Bit8u eg_rate; Bit8u eg_ksl; Bit8u *trem; Bit8u reg_vib; Bit8u reg_type; Bit8u reg_ksr; Bit8u reg_mult; Bit8u reg_ksl; Bit8u reg_tl; Bit8u reg_ar; Bit8u reg_dr; Bit8u reg_sl; Bit8u reg_rr; Bit8u reg_wf; Bit8u key; Bit32u pg_phase; Bit32u timer; }; struct _opl3_channel { opl3_slot *slots[2]; opl3_channel *pair; opl3_chip *chip; Bit16s *out[4]; Bit8u chtype; Bit16u f_num; Bit8u block; Bit8u fb; Bit8u con; Bit8u alg; Bit8u ksv; Bit16u cha, chb; }; typedef struct _opl3_writebuf { Bit64u time; Bit16u reg; Bit8u data; } opl3_writebuf; struct _opl3_chip { opl3_channel channel[18]; opl3_slot slot[36]; Bit16u timer; Bit8u newm; Bit8u nts; Bit8u rhy; Bit8u vibpos; Bit8u vibshift; Bit8u tremolo; Bit8u tremolopos; Bit8u tremoloshift; Bit32u noise; Bit16s zeromod; Bit32s mixbuff[2]; //OPL3L Bit32s rateratio; Bit32s samplecnt; Bit16s oldsamples[2]; Bit16s samples[2]; Bit64u writebuf_samplecnt; Bit32u writebuf_cur; Bit32u writebuf_last; Bit64u writebuf_lasttime; opl3_writebuf writebuf[OPL_WRITEBUF_SIZE]; }; void OPL3_Generate(opl3_chip *chip, Bit16s *buf); void OPL3_GenerateResampled(opl3_chip *chip, Bit16s *buf); void OPL3_Reset(opl3_chip *chip, Bit32u samplerate); void OPL3_WriteReg(opl3_chip *chip, Bit16u reg, Bit8u v); void OPL3_WriteRegBuffered(opl3_chip *chip, Bit16u reg, Bit8u v); void OPL3_GenerateStream(opl3_chip *chip, Bit16s *sndptr, Bit32u numsamples); #endif