Initial commit
This commit is contained in:
197
audio/softsynth/opl/nuked.h
Normal file
197
audio/softsynth/opl/nuked.h
Normal file
@@ -0,0 +1,197 @@
|
||||
//
|
||||
// Copyright (C) 2013-2018 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.
|
||||
// siliconpr0n.org(John McMaster, digshadow):
|
||||
// YMF262 and VRC VII decaps and die shots.
|
||||
//
|
||||
// version: 1.8
|
||||
//
|
||||
|
||||
#ifndef AUDIO_SOFTSYNTH_OPL_NUKED_H
|
||||
#define AUDIO_SOFTSYNTH_OPL_NUKED_H
|
||||
|
||||
#include "common/scummsys.h"
|
||||
#include "audio/fmopl.h"
|
||||
|
||||
#ifndef DISABLE_NUKED_OPL
|
||||
|
||||
#ifndef OPL_ENABLE_STEREOEXT
|
||||
#define OPL_ENABLE_STEREOEXT 0
|
||||
#endif
|
||||
|
||||
#define OPL_WRITEBUF_SIZE 1024
|
||||
#define OPL_WRITEBUF_DELAY 2
|
||||
|
||||
namespace OPL {
|
||||
namespace NUKED {
|
||||
|
||||
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 *slotz[2];/*Don't use "slots" keyword to avoid conflict with Qt applications*/
|
||||
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;
|
||||
uint16_t chc, chd;
|
||||
uint8_t ch_num;
|
||||
};
|
||||
|
||||
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 eg_timer_lo;
|
||||
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[4];
|
||||
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[4];
|
||||
int16_t samples[4];
|
||||
|
||||
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);
|
||||
|
||||
void OPL3_Generate4Ch(opl3_chip *chip, int16_t *buf4);
|
||||
void OPL3_Generate4ChResampled(opl3_chip *chip, int16_t *buf4);
|
||||
void OPL3_Generate4ChStream(opl3_chip *chip, int16_t *sndptr1, int16_t *sndptr2, uint32_t numsamples);
|
||||
|
||||
class OPL : public ::OPL::OPL, public Audio::EmulatedChip {
|
||||
private:
|
||||
Config::OplType _type;
|
||||
uint _rate;
|
||||
opl3_chip chip;
|
||||
uint address[2];
|
||||
void dualWrite(uint8 index, uint8 reg, uint8 val);
|
||||
|
||||
public:
|
||||
OPL(Config::OplType type);
|
||||
~OPL();
|
||||
|
||||
bool init();
|
||||
void reset();
|
||||
|
||||
void write(int a, int v);
|
||||
|
||||
void writeReg(int r, int v);
|
||||
|
||||
bool isStereo() const { return true; }
|
||||
|
||||
protected:
|
||||
void generateSamples(int16 *buffer, int length);
|
||||
};
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
#endif // !DISABLE_NUKED_OPL
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user