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prepare for OPLL system - DOES NOT WORK

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tildearrow 2022-02-25 04:26:01 -05:00
parent 27c1522085
commit 37f850c6c4
10 changed files with 2456 additions and 9 deletions
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2
CMakeLists.txt
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@ -244,6 +244,7 @@ extern/adpcm/ymz_codec.c
extern/Nuked-OPN2/ym3438.c extern/Nuked-OPN2/ym3438.c
extern/opm/opm.c extern/opm/opm.c
extern/Nuked-OPLL/opll.c
src/engine/platform/sound/sn76496.cpp src/engine/platform/sound/sn76496.cpp
src/engine/platform/sound/ay8910.cpp src/engine/platform/sound/ay8910.cpp
src/engine/platform/sound/saa1099.cpp src/engine/platform/sound/saa1099.cpp
@ -304,6 +305,7 @@ src/engine/platform/abstract.cpp
src/engine/platform/genesis.cpp src/engine/platform/genesis.cpp
src/engine/platform/genesisext.cpp src/engine/platform/genesisext.cpp
src/engine/platform/sms.cpp src/engine/platform/sms.cpp
src/engine/platform/opll.cpp
src/engine/platform/gb.cpp src/engine/platform/gb.cpp
src/engine/platform/pce.cpp src/engine/platform/pce.cpp
src/engine/platform/nes.cpp src/engine/platform/nes.cpp

12
extern/Nuked-OPLL/.github/FUNDING.yml vendored Normal file
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@ -0,0 +1,12 @@
# These are supported funding model platforms
github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
patreon: nukeykt # Replace with a single Patreon username
open_collective: # Replace with a single Open Collective username
ko_fi: # Replace with a single Ko-fi username
tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
liberapay: # Replace with a single Liberapay username
issuehunt: # Replace with a single IssueHunt username
otechie: # Replace with a single Otechie username
custom: ['https://www.buymeacoffee.com/nukeykt', 'https://paypal.me/nukeykt'] # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

339
extern/Nuked-OPLL/LICENSE vendored Normal file
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@ -0,0 +1,339 @@
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1106
extern/Nuked-OPLL/opll.c vendored Normal file
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File diff suppressed because it is too large Load diff

199
extern/Nuked-OPLL/opll.h vendored Normal file
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@ -0,0 +1,199 @@
/*
* Copyright (C) 2019 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.
*
*
* Yamaha YM2413 emulator
* Thanks:
* siliconpr0n.org(digshadow, John McMaster):
* VRC VII decap and die shot.
*
* version: 1.0.1
*/
#ifndef OPLL_H
#define OPLL_H
#include <stdint.h>
enum {
opll_type_ym2413 = 0x00, /* Yamaha YM2413 */
opll_type_ds1001, /* Konami VRC VII */
opll_type_ym2413b, /* Yamaha YM2413B */
opll_type_ymf281, /* Yamaha YMF281 */
opll_type_ymf281b, /* Yamaha YMF281B */
opll_type_ym2420, /* Yamaha YM2420 */
opll_type_ym2423, /* Yamaha YM2423 */
};
enum {
opll_patch_1 = 0x00,
opll_patch_2,
opll_patch_3,
opll_patch_4,
opll_patch_5,
opll_patch_6,
opll_patch_7,
opll_patch_8,
opll_patch_9,
opll_patch_10,
opll_patch_11,
opll_patch_12,
opll_patch_13,
opll_patch_14,
opll_patch_15,
opll_patch_drum_0,
opll_patch_drum_1,
opll_patch_drum_2,
opll_patch_drum_3,
opll_patch_drum_4,
opll_patch_drum_5,
opll_patch_max
};
typedef struct {
uint8_t tl;
uint8_t dc;
uint8_t dm;
uint8_t fb;
uint8_t am[2];
uint8_t vib[2];
uint8_t et[2];
uint8_t ksr[2];
uint8_t multi[2];
uint8_t ksl[2];
uint8_t ar[2];
uint8_t dr[2];
uint8_t sl[2];
uint8_t rr[2];
} opll_patch_t;
typedef struct {
uint32_t chip_type;
uint32_t cycles;
uint32_t slot;
const opll_patch_t *patchrom;
/* IO */
uint8_t write_data;
uint8_t write_a;
uint8_t write_d;
uint8_t write_a_en;
uint8_t write_d_en;
uint8_t write_fm_address;
uint8_t write_fm_data;
uint8_t write_mode_address;
uint8_t address;
uint8_t data;
/* Envelope generator */
uint8_t eg_counter_state;
uint8_t eg_counter_state_prev;
uint32_t eg_timer;
uint8_t eg_timer_low_lock;
uint8_t eg_timer_carry;
uint8_t eg_timer_shift;
uint8_t eg_timer_shift_lock;
uint8_t eg_timer_shift_stop;
uint8_t eg_state[18];
uint8_t eg_level[18];
uint8_t eg_kon;
uint32_t eg_dokon;
uint8_t eg_off;
uint8_t eg_rate;
uint8_t eg_maxrate;
uint8_t eg_zerorate;
uint8_t eg_inc_lo;
uint8_t eg_inc_hi;
uint8_t eg_rate_hi;
uint16_t eg_sl;
uint16_t eg_ksltl;
uint8_t eg_out;
uint8_t eg_silent;
/* Phase generator */
uint16_t pg_fnum;
uint8_t pg_block;
uint16_t pg_out;
uint32_t pg_inc;
uint32_t pg_phase[18];
uint32_t pg_phase_next;
/* Operator */
int16_t op_fb1[9];
int16_t op_fb2[9];
int16_t op_fbsum;
int16_t op_mod;
uint8_t op_neg;
uint16_t op_logsin;
uint16_t op_exp_m;
uint16_t op_exp_s;
/* Channel */
int16_t ch_out;
int16_t ch_out_hh;
int16_t ch_out_tm;
int16_t ch_out_bd;
int16_t ch_out_sd;
int16_t ch_out_tc;
/* LFO */
uint16_t lfo_counter;
uint8_t lfo_vib_counter;
uint16_t lfo_am_counter;
uint8_t lfo_am_step;
uint8_t lfo_am_dir;
uint8_t lfo_am_car;
uint8_t lfo_am_out;
/* Register set */
uint16_t fnum[9];
uint8_t block[9];
uint8_t kon[9];
uint8_t son[9];
uint8_t vol[9];
uint8_t inst[9];
uint8_t rhythm;
uint8_t testmode;
opll_patch_t patch;
uint8_t c_instr;
uint8_t c_op;
uint8_t c_tl;
uint8_t c_dc;
uint8_t c_dm;
uint8_t c_fb;
uint8_t c_am;
uint8_t c_vib;
uint8_t c_et;
uint8_t c_ksr;
uint8_t c_ksr_freq;
uint8_t c_ksl_freq;
uint8_t c_ksl_block;
uint8_t c_multi;
uint8_t c_ksl;
uint8_t c_adrr[3];
uint8_t c_sl;
uint16_t c_fnum;
uint16_t c_block;
/* Rhythm mode */
int8_t rm_enable;
uint32_t rm_noise;
uint32_t rm_select;
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;
int16_t output_m;
int16_t output_r;
} opll_t;
void OPLL_Reset(opll_t *chip, uint32_t chip_type);
void OPLL_Clock(opll_t *chip, int32_t *buffer);
void OPLL_Write(opll_t *chip, uint32_t port, uint8_t data);
#endif

5
src/engine/dispatchContainer.cpp
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@ -22,6 +22,7 @@
#include "platform/genesis.h" #include "platform/genesis.h"
#include "platform/genesisext.h" #include "platform/genesisext.h"
#include "platform/sms.h" #include "platform/sms.h"
#include "platform/opll.h"
#include "platform/gb.h" #include "platform/gb.h"
#include "platform/pce.h" #include "platform/pce.h"
#include "platform/nes.h" #include "platform/nes.h"
@ -193,6 +194,10 @@ void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, do
case DIV_SYSTEM_TIA: case DIV_SYSTEM_TIA:
dispatch=new DivPlatformTIA; dispatch=new DivPlatformTIA;
break; break;
case DIV_SYSTEM_OPLL:
case DIV_SYSTEM_OPLL_DRUMS:
dispatch=new DivPlatformOPLL;
break;
case DIV_SYSTEM_SAA1099: { case DIV_SYSTEM_SAA1099: {
int saaCore=eng->getConfInt("saaCore",0); int saaCore=eng->getConfInt("saaCore",0);
if (saaCore<0 || saaCore>2) saaCore=0; if (saaCore<0 || saaCore>2) saaCore=0;

8
src/engine/fileOps.cpp
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@ -221,14 +221,6 @@ bool DivEngine::loadDMF(unsigned char* file, size_t len) {
addWarning("Yamaha YMU759 emulation is not currently possible!"); addWarning("Yamaha YMU759 emulation is not currently possible!");
} }
if (ds.system[0]==DIV_SYSTEM_SMS_OPLL) {
addWarning("Master System FM expansion is not emulated yet. wait for 0.6!");
}
if (ds.system[0]==DIV_SYSTEM_NES_VRC7) {
addWarning("Konami VRC7 is not emulated yet. wait for 0.6!");
}
logI("reading pattern matrix (%d)...\n",ds.ordersLen); logI("reading pattern matrix (%d)...\n",ds.ordersLen);
for (int i=0; i<getChannelCount(ds.system[0]); i++) { for (int i=0; i<getChannelCount(ds.system[0]); i++) {
for (int j=0; j<ds.ordersLen; j++) { for (int j=0; j<ds.ordersLen; j++) {

3
src/engine/instrument.h
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@ -82,7 +82,8 @@ struct DivInstrumentFM {
fb(0), fb(0),
fms(0), fms(0),
ams(0), ams(0),
ops(4) { ops(4),
opllPreset(0) {
// default instrument // default instrument
fb=4; fb=4;
op[0].tl=42; op[0].tl=42;

678
src/engine/platform/opll.cpp Normal file
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@ -0,0 +1,678 @@
/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2022 tildearrow and contributors
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "opll.h"
#include "../engine.h"
#include <string.h>
#include <math.h>
#define rWrite(a,v) if (!skipRegisterWrites) {pendingWrites[a]=v;}
#define immWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
#define CHIP_FREQBASE 9440540
const char* DivPlatformOPLL::getEffectName(unsigned char effect) {
switch (effect) {
case 0x10:
return "10xy: Setup LFO (x: enable; y: speed)";
break;
case 0x11:
return "11xx: Set feedback (0 to 7)";
break;
case 0x12:
return "12xx: Set level of operator 1 (0 highest, 7F lowest)";
break;
case 0x13:
return "13xx: Set level of operator 2 (0 highest, 7F lowest)";
break;
case 0x14:
return "14xx: Set level of operator 3 (0 highest, 7F lowest)";
break;
case 0x15:
return "15xx: Set level of operator 4 (0 highest, 7F lowest)";
break;
case 0x16:
return "16xy: Set operator multiplier (x: operator from 1 to 4; y: multiplier)";
break;
case 0x17:
return "17xx: Enable channel 6 DAC";
break;
case 0x18:
return "18xx: Toggle extended channel 3 mode";
break;
case 0x19:
return "19xx: Set attack of all operators (0 to 1F)";
break;
case 0x1a:
return "1Axx: Set attack of operator 1 (0 to 1F)";
break;
case 0x1b:
return "1Bxx: Set attack of operator 2 (0 to 1F)";
break;
case 0x1c:
return "1Cxx: Set attack of operator 3 (0 to 1F)";
break;
case 0x1d:
return "1Dxx: Set attack of operator 4 (0 to 1F)";
break;
}
return NULL;
}
void DivPlatformOPLL::acquire_nuked(short* bufL, short* bufR, size_t start, size_t len) {
static int o[2];
for (size_t h=start; h<start+len; h++) {
if (!writes.empty() && --delay<0) {
delay=1;
QueuedWrite& w=writes.front();
if (w.addrOrVal) {
OPLL_Write(&fm,1,w.val);
printf("write: %x = %.2x\n",w.addr,w.val);
regPool[w.addr&0xff]=w.val;
writes.pop();
} else {
//printf("busycounter: %d\n",lastBusy);
OPLL_Write(&fm,0,w.addr);
w.addrOrVal=true;
}
}
OPLL_Clock(&fm,o);
if (o[0]<-32768) o[0]=-32768;
if (o[1]>32767) o[1]=32767;
bufL[h]=(o[0]+o[1])<<4;
}
}
void DivPlatformOPLL::acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len) {
}
void DivPlatformOPLL::acquire(short* bufL, short* bufR, size_t start, size_t len) {
acquire_nuked(bufL,bufR,start,len);
}
void DivPlatformOPLL::tick() {
for (int i=0; i<9; i++) {
chan[i].std.next();
/*if (chan[i].std.hadVol) {
chan[i].outVol=(chan[i].vol*MIN(127,chan[i].std.vol))/127;
for (int j=0; j<4; j++) {
unsigned short baseAddr=chanOffs[i]|opOffs[j];
DivInstrumentFM::Operator& op=chan[i].state.op[j];
if (isMuted[i]) {
rWrite(baseAddr+ADDR_TL,127);
} else {
if (isOutput[chan[i].state.alg][j]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[i].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
}
}
if (chan[i].std.hadArp) {
if (!chan[i].inPorta) {
if (chan[i].std.arpMode) {
chan[i].baseFreq=NOTE_FREQUENCY(chan[i].std.arp);
} else {
chan[i].baseFreq=NOTE_FREQUENCY(chan[i].note+(signed char)chan[i].std.arp);
}
}
chan[i].freqChanged=true;
} else {
if (chan[i].std.arpMode && chan[i].std.finishedArp) {
chan[i].baseFreq=NOTE_FREQUENCY(chan[i].note);
chan[i].freqChanged=true;
}
}
if (chan[i].std.hadAlg) {
chan[i].state.alg=chan[i].std.alg;
rWrite(chanOffs[i]+ADDR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3));
if (!parent->song.algMacroBehavior) for (int j=0; j<4; j++) {
unsigned short baseAddr=chanOffs[i]|opOffs[j];
DivInstrumentFM::Operator& op=chan[i].state.op[j];
if (isMuted[i]) {
rWrite(baseAddr+ADDR_TL,127);
} else {
if (isOutput[chan[i].state.alg][j]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[i].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
}
}
if (chan[i].std.hadFb) {
chan[i].state.fb=chan[i].std.fb;
rWrite(chanOffs[i]+ADDR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3));
}
if (chan[i].std.hadFms) {
chan[i].state.fms=chan[i].std.fms;
rWrite(chanOffs[i]+ADDR_LRAF,(isMuted[i]?0:(chan[i].pan<<6))|(chan[i].state.fms&7)|((chan[i].state.ams&3)<<4));
}
if (chan[i].std.hadAms) {
chan[i].state.ams=chan[i].std.ams;
rWrite(chanOffs[i]+ADDR_LRAF,(isMuted[i]?0:(chan[i].pan<<6))|(chan[i].state.fms&7)|((chan[i].state.ams&3)<<4));
}
for (int j=0; j<2; j++) {
unsigned short baseAddr=chanOffs[i]|opOffs[j];
DivInstrumentFM::Operator& op=chan[i].state.op[j];
DivMacroInt::IntOp& m=chan[i].std.op[j];
if (m.hadAm) {
op.am=m.am;
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
}
if (m.hadAr) {
op.ar=m.ar;
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
}
if (m.hadDr) {
op.dr=m.dr;
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
}
if (m.hadMult) {
op.mult=m.mult;
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
}
if (m.hadRr) {
op.rr=m.rr;
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
if (m.hadSl) {
op.sl=m.sl;
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
if (m.hadTl) {
op.tl=127-m.tl;
if (isMuted[i]) {
rWrite(baseAddr+ADDR_TL,127);
} else {
if (isOutput[chan[i].state.alg][j]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[i].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
}
if (m.hadRs) {
op.rs=m.rs;
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
}
if (m.hadDt) {
op.dt=m.dt;
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
}
if (m.hadD2r) {
op.d2r=m.d2r;
rWrite(baseAddr+ADDR_DT2_D2R,op.d2r&31);
}
if (m.hadSsg) {
op.ssgEnv=m.ssg;
rWrite(baseAddr+ADDR_SSG,op.ssgEnv&15);
}
}*/
if (chan[i].keyOn || chan[i].keyOff) {
// TODO: FIX
immWrite(0x20+i,0x00);
//chan[i].keyOn=false;
chan[i].keyOff=false;
}
}
for (int i=0; i<256; i++) {
if (pendingWrites[i]!=oldWrites[i]) {
immWrite(i,pendingWrites[i]&0xff);
oldWrites[i]=pendingWrites[i];
}
}
for (int i=0; i<9; i++) {
if (chan[i].freqChanged) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,octave(chan[i].baseFreq));
if (chan[i].freq>262143) chan[i].freq=262143;
int freqt=toFreq(chan[i].freq);
chan[i].freqH=freqt>>8;
chan[i].freqL=freqt&0xff;
immWrite(0x10+i,freqt&0xff);
chan[i].freqChanged=false;
}
if (chan[i].keyOn) {
//immWrite(0x28,0xf0|konOffs[i]);
immWrite(0x20+i,(chan[i].freqH)|(chan[i].active<<4)|0x20);
chan[i].keyOn=false;
}
}
}
int DivPlatformOPLL::octave(int freq) {
if (freq>=32768) {
return 128;
} else if (freq>=16384) {
return 64;
} else if (freq>=8192) {
return 32;
} else if (freq>=4096) {
return 16;
} else if (freq>=2048) {
return 8;
} else if (freq>=1024) {
return 4;
} else if (freq>=512) {
return 2;
} else {
return 1;
}
return 1;
}
int DivPlatformOPLL::toFreq(int freq) {
if (freq>=32768) {
return 0xe00|((freq>>7)&0x1ff);
} else if (freq>=16384) {
return 0xc00|((freq>>6)&0x1ff);
} else if (freq>=8192) {
return 0xa00|((freq>>5)&0x1ff);
} else if (freq>=4096) {
return 0x800|((freq>>4)&0x1ff);
} else if (freq>=2048) {
return 0x600|((freq>>3)&0x1ff);
} else if (freq>=1024) {
return 0x400|((freq>>2)&0x1ff);
} else if (freq>=512) {
return 0x200|((freq>>1)&0x1ff);
} else {
return freq&0x1ff;
}
}
void DivPlatformOPLL::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
/*
for (int j=0; j<4; j++) {
unsigned short baseAddr=chanOffs[ch]|opOffs[j];
DivInstrumentFM::Operator& op=chan[ch].state.op[j];
if (isMuted[ch]) {
rWrite(baseAddr+ADDR_TL,127);
} else {
if (isOutput[chan[ch].state.alg][j]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[ch].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
}
rWrite(chanOffs[ch]+ADDR_LRAF,(isMuted[ch]?0:(chan[ch].pan<<6))|(chan[ch].state.fms&7)|((chan[ch].state.ams&3)<<4));*/
}
int DivPlatformOPLL::dispatch(DivCommand c) {
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
DivInstrument* ins=parent->getIns(chan[c.chan].ins);
if (chan[c.chan].insChanged) {
chan[c.chan].state=ins->fm;
}
chan[c.chan].std.init(ins);
if (!chan[c.chan].std.willVol) {
chan[c.chan].outVol=chan[c.chan].vol;
}
/*
for (int i=0; i<2; i++) {
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
if (isMuted[c.chan]) {
rWrite(baseAddr+ADDR_TL,127);
} else {
if (isOutput[chan[c.chan].state.alg][i]) {
if (!chan[c.chan].active || chan[c.chan].insChanged) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[c.chan].outVol&0x7f))/127));
}
} else {
if (chan[c.chan].insChanged) {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
}
if (chan[c.chan].insChanged) {
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
rWrite(baseAddr+ADDR_DT2_D2R,op.d2r&31);
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
rWrite(baseAddr+ADDR_SSG,op.ssgEnv&15);
}
}
if (chan[c.chan].insChanged) {
rWrite(chanOffs[c.chan]+ADDR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3));
rWrite(chanOffs[c.chan]+ADDR_LRAF,(isMuted[c.chan]?0:(chan[c.chan].pan<<6))|(chan[c.chan].state.fms&7)|((chan[c.chan].state.ams&3)<<4));
}
*/
// for now
rWrite(0x30+c.chan,0x1e);
chan[c.chan].insChanged=false;
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=NOTE_FREQUENCY(c.value);
chan[c.chan].note=c.value;
chan[c.chan].freqChanged=true;
}
chan[c.chan].keyOn=true;
chan[c.chan].active=true;
break;
}
case DIV_CMD_NOTE_OFF:
chan[c.chan].keyOff=true;
chan[c.chan].keyOn=false;
chan[c.chan].active=false;
break;
case DIV_CMD_NOTE_OFF_ENV:
chan[c.chan].keyOff=true;
chan[c.chan].keyOn=false;
chan[c.chan].active=false;
chan[c.chan].std.release();
break;
case DIV_CMD_ENV_RELEASE:
chan[c.chan].std.release();
break;
case DIV_CMD_VOLUME: {
chan[c.chan].vol=c.value;
if (!chan[c.chan].std.hasVol) {
chan[c.chan].outVol=c.value;
}
/*
for (int i=0; i<4; i++) {
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
if (isMuted[c.chan]) {
rWrite(baseAddr+ADDR_TL,127);
} else {
if (isOutput[chan[c.chan].state.alg][i]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[c.chan].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
}*/
break;
}
case DIV_CMD_GET_VOLUME: {
return chan[c.chan].vol;
break;
}
case DIV_CMD_INSTRUMENT:
if (chan[c.chan].ins!=c.value || c.value2==1) {
chan[c.chan].insChanged=true;
}
chan[c.chan].ins=c.value;
break;
case DIV_CMD_PITCH: {
chan[c.chan].pitch=c.value;
chan[c.chan].freqChanged=true;
break;
}
case DIV_CMD_NOTE_PORTA: {
int destFreq=NOTE_FREQUENCY(c.value2);
int newFreq;
bool return2=false;
if (destFreq>chan[c.chan].baseFreq) {
newFreq=chan[c.chan].baseFreq+c.value*octave(chan[c.chan].baseFreq);
if (newFreq>=destFreq) {
newFreq=destFreq;
return2=true;
}
} else {
newFreq=chan[c.chan].baseFreq-c.value*octave(chan[c.chan].baseFreq);
if (newFreq<=destFreq) {
newFreq=destFreq;
return2=true;
}
}
if (!chan[c.chan].portaPause) {
if (octave(chan[c.chan].baseFreq)!=octave(newFreq)) {
chan[c.chan].portaPause=true;
break;
}
}
chan[c.chan].baseFreq=newFreq;
chan[c.chan].portaPause=false;
chan[c.chan].freqChanged=true;
if (return2) {
chan[c.chan].inPorta=false;
return 2;
}
break;
}
case DIV_CMD_LEGATO: {
chan[c.chan].baseFreq=NOTE_FREQUENCY(c.value);
chan[c.chan].note=c.value;
chan[c.chan].freqChanged=true;
break;
}
/*
case DIV_CMD_FM_FB: {
chan[c.chan].state.fb=c.value&7;
rWrite(chanOffs[c.chan]+ADDR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3));
break;
}
case DIV_CMD_FM_MULT: {
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.mult=c.value2&15;
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
break;
}
case DIV_CMD_FM_TL: {
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.tl=c.value2;
if (isMuted[c.chan]) {
rWrite(baseAddr+ADDR_TL,127);
} else {
if (isOutput[chan[c.chan].state.alg][c.value]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[c.chan].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
break;
}
case DIV_CMD_FM_AR: {
if (c.value<0) {
for (int i=0; i<4; i++) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
op.ar=c.value2&31;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
}
} else {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.ar=c.value2&31;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
}
break;
}
*/
case DIV_ALWAYS_SET_VOLUME:
return 0;
break;
case DIV_CMD_GET_VOLMAX:
return 127;
break;
case DIV_CMD_PRE_PORTA:
chan[c.chan].inPorta=c.value;
break;
case DIV_CMD_PRE_NOTE:
break;
default:
//printf("WARNING: unimplemented command %d\n",c.cmd);
break;
}
return 1;
}
void DivPlatformOPLL::forceIns() {
/*
for (int i=0; i<6; i++) {
for (int j=0; j<4; j++) {
unsigned short baseAddr=chanOffs[i]|opOffs[j];
DivInstrumentFM::Operator& op=chan[i].state.op[j];
if (isMuted[i]) {
rWrite(baseAddr+ADDR_TL,127);
} else {
if (isOutput[chan[i].state.alg][j]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[i].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
rWrite(baseAddr+ADDR_DT2_D2R,op.d2r&31);
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
rWrite(baseAddr+ADDR_SSG,op.ssgEnv&15);
}
rWrite(chanOffs[i]+ADDR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3));
rWrite(chanOffs[i]+ADDR_LRAF,(isMuted[i]?0:(chan[i].pan<<6))|(chan[i].state.fms&7)|((chan[i].state.ams&3)<<4));
if (chan[i].active) {
chan[i].keyOn=true;
chan[i].freqChanged=true;
}
}
if (dacMode) {
rWrite(0x2b,0x80);
}
immWrite(0x22,lfoValue);*/
}
void DivPlatformOPLL::toggleRegisterDump(bool enable) {
DivDispatch::toggleRegisterDump(enable);
}
void* DivPlatformOPLL::getChanState(int ch) {
return &chan[ch];
}
unsigned char* DivPlatformOPLL::getRegisterPool() {
return regPool;
}
int DivPlatformOPLL::getRegisterPoolSize() {
return 256;
}
void DivPlatformOPLL::reset() {
while (!writes.empty()) writes.pop();
memset(regPool,0,256);
OPLL_Reset(&fm,opll_type_ym2413);
if (dumpWrites) {
addWrite(0xffffffff,0);
}
for (int i=0; i<9; i++) {
chan[i]=DivPlatformOPLL::Channel();
chan[i].vol=15;
chan[i].outVol=15;
}
for (int i=0; i<256; i++) {
oldWrites[i]=-1;
pendingWrites[i]=-1;
}
lastBusy=60;
delay=0;
}
bool DivPlatformOPLL::keyOffAffectsArp(int ch) {
return false;
}
bool DivPlatformOPLL::keyOffAffectsPorta(int ch) {
return false;
}
void DivPlatformOPLL::notifyInsChange(int ins) {
for (int i=0; i<9; i++) {
if (chan[i].ins==ins) {
chan[i].insChanged=true;
}
}
}
void DivPlatformOPLL::notifyInsDeletion(void* ins) {
}
void DivPlatformOPLL::poke(unsigned int addr, unsigned short val) {
immWrite(addr,val);
}
void DivPlatformOPLL::poke(std::vector<DivRegWrite>& wlist) {
for (DivRegWrite& i: wlist) immWrite(i.addr,i.val);
}
int DivPlatformOPLL::getPortaFloor(int ch) {
return (ch>5)?12:0;
}
void DivPlatformOPLL::setYMFM(bool use) {
useYMFM=use;
}
void DivPlatformOPLL::setFlags(unsigned int flags) {
if (flags==3) {
chipClock=COLOR_NTSC;
} else if (flags==2) {
chipClock=8000000.0;
} else if (flags==1) {
chipClock=COLOR_PAL*4.0/5.0;
} else {
chipClock=COLOR_NTSC;
}
rate=chipClock;
}
int DivPlatformOPLL::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
parent=p;
dumpWrites=false;
skipRegisterWrites=false;
for (int i=0; i<9; i++) {
isMuted[i]=false;
}
setFlags(flags);
reset();
return 10;
}
void DivPlatformOPLL::quit() {
}
DivPlatformOPLL::~DivPlatformOPLL() {
}

113
src/engine/platform/opll.h Normal file
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@ -0,0 +1,113 @@
/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2022 tildearrow and contributors
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _OPLL_H
#define _OPLL_H
#include "../dispatch.h"
#include "../macroInt.h"
#include <queue>
extern "C" {
#include "../../../extern/Nuked-OPLL/opll.h"
}
class DivPlatformOPLL: public DivDispatch {
protected:
struct Channel {
DivInstrumentFM state;
DivMacroInt std;
unsigned char freqH, freqL;
int freq, baseFreq, pitch, note;
unsigned char ins;
bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, furnaceDac, inPorta;
int vol, outVol;
unsigned char pan;
Channel():
freqH(0),
freqL(0),
freq(0),
baseFreq(0),
pitch(0),
note(0),
ins(-1),
active(false),
insChanged(true),
freqChanged(false),
keyOn(false),
keyOff(false),
portaPause(false),
furnaceDac(false),
inPorta(false),
vol(0),
pan(3) {}
};
Channel chan[9];
bool isMuted[9];
struct QueuedWrite {
unsigned short addr;
unsigned char val;
bool addrOrVal;
QueuedWrite(unsigned short a, unsigned char v): addr(a), val(v), addrOrVal(false) {}
};
std::queue<QueuedWrite> writes;
opll_t fm;
int delay;
unsigned char lastBusy;
unsigned char regPool[256];
bool useYMFM;
short oldWrites[256];
short pendingWrites[256];
int octave(int freq);
int toFreq(int freq);
friend void putDispatchChan(void*,int,int);
void acquire_nuked(short* bufL, short* bufR, size_t start, size_t len);
void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
public:
void acquire(short* bufL, short* bufR, size_t start, size_t len);
int dispatch(DivCommand c);
void* getChanState(int chan);
unsigned char* getRegisterPool();
int getRegisterPoolSize();
void reset();
void forceIns();
void tick();
void muteChannel(int ch, bool mute);
void setYMFM(bool use);
bool keyOffAffectsArp(int ch);
bool keyOffAffectsPorta(int ch);
void toggleRegisterDump(bool enable);
void setFlags(unsigned int flags);
void notifyInsChange(int ins);
void notifyInsDeletion(void* ins);
int getPortaFloor(int ch);
void poke(unsigned int addr, unsigned short val);
void poke(std::vector<DivRegWrite>& wlist);
const char* getEffectName(unsigned char effect);
int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
void quit();
~DivPlatformOPLL();
};
#endif