179 lines
3.8 KiB
C
179 lines
3.8 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Definitions for the NukedOPL3 driver.
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*
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* Version: @(#)snd_opl_nuked.h 1.0.5 2020/07/16
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*
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* Authors: Fred N. van Kempen, <decwiz@yahoo.com>
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* Miran Grca, <mgrca8@gmail.com>
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*
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* Copyright 2017-2020 Fred N. van Kempen.
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* Copyright 2016-2019 Miran Grca.
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*/
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#ifndef SOUND_OPL_NUKED_H
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#define SOUND_OPL_NUKED_H
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#ifndef OPL_ENABLE_STEREOEXT
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#define OPL_ENABLE_STEREOEXT 0
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#endif
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#define WRBUF_SIZE 1024
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#define WRBUF_DELAY 1
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struct chan;
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struct chip;
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typedef struct slot {
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struct chan *channel;
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struct chip *chip;
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int16_t out;
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int16_t fbmod;
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int16_t *mod;
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int16_t prout;
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int16_t eg_rout;
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int16_t eg_out;
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uint8_t eg_inc;
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uint8_t eg_gen;
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uint8_t eg_rate;
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uint8_t eg_ksl;
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uint8_t *trem;
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uint8_t reg_vib;
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uint8_t reg_type;
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uint8_t reg_ksr;
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uint8_t reg_mult;
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uint8_t reg_ksl;
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uint8_t reg_tl;
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uint8_t reg_ar;
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uint8_t reg_dr;
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uint8_t reg_sl;
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uint8_t reg_rr;
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uint8_t reg_wf;
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uint8_t key;
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uint32_t pg_reset;
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uint32_t pg_phase;
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uint16_t pg_phase_out;
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uint8_t slot_num;
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} opl3_slot;
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typedef struct chan {
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opl3_slot *slotz[2]; // Don't use "slots" keyword to avoid conflict with Qt applications
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struct chan *pair;
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struct chip *chip;
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int16_t *out[4];
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#if OPL_ENABLE_STEREOEXT
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int32_t leftpan;
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int32_t rightpan;
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#endif
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uint8_t chtype;
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uint16_t f_num;
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uint8_t block;
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uint8_t fb;
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uint8_t con;
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uint8_t alg;
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uint8_t ksv;
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uint16_t cha;
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uint16_t chb;
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uint16_t chc;
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uint16_t chd;
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uint8_t ch_num;
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} opl3_channel;
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typedef struct wrbuf {
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uint64_t time;
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uint16_t reg;
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uint8_t data;
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} wrbuf_t;
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typedef struct chip {
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opl3_channel channel[18];
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opl3_slot slot[36];
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uint16_t timer;
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uint64_t eg_timer;
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uint8_t eg_timerrem;
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uint8_t eg_state;
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uint8_t eg_add;
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uint64_t eg_timer_lo;
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uint8_t newm;
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uint8_t nts;
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uint8_t rhy;
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uint8_t vibpos;
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uint8_t vibshift;
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uint8_t tremolo;
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uint8_t tremolopos;
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uint8_t tremoloshift;
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uint32_t noise;
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int16_t zeromod;
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int32_t mixbuff[4];
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uint8_t rm_hh_bit2;
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uint8_t rm_hh_bit3;
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uint8_t rm_hh_bit7;
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uint8_t rm_hh_bit8;
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uint8_t rm_tc_bit3;
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uint8_t rm_tc_bit5;
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#if OPL_ENABLE_STEREOEXT
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uint8_t stereoext;
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#endif
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// OPL3L
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int32_t rateratio;
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int32_t samplecnt;
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int32_t oldsamples[4];
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int32_t samples[4];
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uint64_t wrbuf_samplecnt;
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uint32_t wrbuf_cur;
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uint32_t wrbuf_last;
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uint64_t wrbuf_lasttime;
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wrbuf_t wrbuf[WRBUF_SIZE];
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} opl3_chip;
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typedef struct {
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opl3_chip opl;
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int8_t flags;
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int8_t pad;
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uint16_t port;
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uint8_t status;
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uint8_t timer_ctrl;
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uint16_t timer_count[2];
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uint16_t timer_cur_count[2];
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pc_timer_t timers[2];
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int pos;
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int32_t buffer[MUSICBUFLEN * 2];
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} nuked_drv_t;
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enum {
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FLAG_CYCLES = 0x02,
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FLAG_OPL3 = 0x01
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};
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enum {
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STAT_TMR_OVER = 0x60,
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STAT_TMR1_OVER = 0x40,
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STAT_TMR2_OVER = 0x20,
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STAT_TMR_ANY = 0x80
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};
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enum {
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CTRL_RESET = 0x80,
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CTRL_TMR_MASK = 0x60,
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CTRL_TMR1_MASK = 0x40,
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CTRL_TMR2_MASK = 0x20,
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CTRL_TMR2_START = 0x02,
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CTRL_TMR1_START = 0x01
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};
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void nuked_write_reg(void *priv, uint16_t reg, uint8_t val);
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#endif /*SOUND_OPL_NUKED_H*/
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