mirror of
https://github.com/tildearrow/furnace.git
synced 2024-12-28 18:41:16 +00:00
b75336bcb6
**SUBMODULES UPDATED** - Nuked-OPL3 is no longer a submodule as I had to directly modify the core for this if you mess up while removing Nuked-OPL3 from your repo, delete everything and clone again fixes #414
168 lines
3.9 KiB
C
168 lines
3.9 KiB
C
/* Nuked OPL3
|
|
* Copyright (C) 2013-2020 Nuke.YKT
|
|
*
|
|
* This file is part of Nuked OPL3.
|
|
*
|
|
* Nuked OPL3 is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as
|
|
* published by the Free Software Foundation, either version 2.1
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* Nuked OPL3 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with Nuked OPL3. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
* 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.
|
|
* siliconpr0n.org(John McMaster, digshadow):
|
|
* YMF262 and VRC VII decaps and die shots.
|
|
*
|
|
* version: 1.8
|
|
*/
|
|
|
|
#ifndef OPL_OPL3_H
|
|
#define OPL_OPL3_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <inttypes.h>
|
|
|
|
#ifndef OPL_ENABLE_STEREOEXT
|
|
#define OPL_ENABLE_STEREOEXT 0
|
|
#endif
|
|
|
|
#define OPL_WRITEBUF_SIZE 1024
|
|
#define OPL_WRITEBUF_DELAY 2
|
|
|
|
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;
|
|
int16_t out;
|
|
int16_t fbmod;
|
|
int16_t *mod;
|
|
int16_t prout;
|
|
uint16_t eg_rout;
|
|
uint16_t eg_out;
|
|
uint8_t eg_inc;
|
|
uint8_t eg_gen;
|
|
uint8_t eg_rate;
|
|
uint8_t eg_ksl;
|
|
uint8_t *trem;
|
|
uint8_t reg_vib;
|
|
uint8_t reg_type;
|
|
uint8_t reg_ksr;
|
|
uint8_t reg_mult;
|
|
uint8_t reg_ksl;
|
|
uint8_t reg_tl;
|
|
uint8_t reg_ar;
|
|
uint8_t reg_dr;
|
|
uint8_t reg_sl;
|
|
uint8_t reg_rr;
|
|
uint8_t reg_wf;
|
|
uint8_t key;
|
|
uint32_t pg_reset;
|
|
uint32_t pg_phase;
|
|
uint16_t pg_phase_out;
|
|
uint8_t slot_num;
|
|
};
|
|
|
|
struct _opl3_channel {
|
|
opl3_slot *slots[2];
|
|
opl3_channel *pair;
|
|
opl3_chip *chip;
|
|
int16_t *out[4];
|
|
|
|
#if OPL_ENABLE_STEREOEXT
|
|
int32_t leftpan;
|
|
int32_t rightpan;
|
|
#endif
|
|
|
|
uint8_t chtype;
|
|
uint16_t f_num;
|
|
uint8_t block;
|
|
uint8_t fb;
|
|
uint8_t con;
|
|
uint8_t alg;
|
|
uint8_t ksv;
|
|
uint16_t cha, chb;
|
|
uint8_t ch_num;
|
|
uint8_t muted;
|
|
};
|
|
|
|
typedef struct _opl3_writebuf {
|
|
uint64_t time;
|
|
uint16_t reg;
|
|
uint8_t data;
|
|
} opl3_writebuf;
|
|
|
|
struct _opl3_chip {
|
|
opl3_channel channel[18];
|
|
opl3_slot slot[36];
|
|
uint16_t timer;
|
|
uint64_t eg_timer;
|
|
uint8_t eg_timerrem;
|
|
uint8_t eg_state;
|
|
uint8_t eg_add;
|
|
uint8_t newm;
|
|
uint8_t nts;
|
|
uint8_t rhy;
|
|
uint8_t vibpos;
|
|
uint8_t vibshift;
|
|
uint8_t tremolo;
|
|
uint8_t tremolopos;
|
|
uint8_t tremoloshift;
|
|
uint32_t noise;
|
|
int16_t zeromod;
|
|
int32_t mixbuff[2];
|
|
uint8_t rm_hh_bit2;
|
|
uint8_t rm_hh_bit3;
|
|
uint8_t rm_hh_bit7;
|
|
uint8_t rm_hh_bit8;
|
|
uint8_t rm_tc_bit3;
|
|
uint8_t rm_tc_bit5;
|
|
|
|
#if OPL_ENABLE_STEREOEXT
|
|
uint8_t stereoext;
|
|
#endif
|
|
|
|
/* OPL3L */
|
|
int32_t rateratio;
|
|
int32_t samplecnt;
|
|
int16_t oldsamples[2];
|
|
int16_t samples[2];
|
|
|
|
uint64_t writebuf_samplecnt;
|
|
uint32_t writebuf_cur;
|
|
uint32_t writebuf_last;
|
|
uint64_t writebuf_lasttime;
|
|
opl3_writebuf writebuf[OPL_WRITEBUF_SIZE];
|
|
};
|
|
|
|
void OPL3_Generate(opl3_chip *chip, int16_t *buf);
|
|
void OPL3_GenerateResampled(opl3_chip *chip, int16_t *buf);
|
|
void OPL3_Reset(opl3_chip *chip, uint32_t samplerate);
|
|
void OPL3_WriteReg(opl3_chip *chip, uint16_t reg, uint8_t v);
|
|
void OPL3_WriteRegBuffered(opl3_chip *chip, uint16_t reg, uint8_t v);
|
|
void OPL3_GenerateStream(opl3_chip *chip, int16_t *sndptr, uint32_t numsamples);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|