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furnace/src/engine/platform/opll.cpp
tildearrow c009cb3536 dev112 - prepare for advanced arp macro 
this new advanced arp macro offers more flexibility and reduces code duplication
it allows you to set each step of the macro to either relative or fixed mode
(instead of just one mode for the entire macro)

the UI is still a work in progress and doesn't work well

this change is big and may break things! further fixes incoming
2022-08-22 15:59:45 -05:00

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/**
* 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 1180068
const unsigned char cycleMapOPLL[18]={
8, 7, 6, 7, 8, 7, 8, 6, 0, 1, 2, 7, 8, 9, 3, 4, 5, 9
};
const unsigned char drumSlot[11]={
0, 0, 0, 0, 0, 0, 6, 7, 8, 8, 7
};
const unsigned char visMapOPLL[9]={
6, 7, 8, 3, 4, 5, 0, 1, 2
};
void DivPlatformOPLL::acquire_nuked(short* bufL, short* bufR, size_t start, size_t len) {
static int o[2];
static int os;
for (size_t h=start; h<start+len; h++) {
os=0;
for (int i=0; i<9; i++) {
if (!writes.empty() && --delay<0) {
// 84 is safe value
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();
delay=21;
} else {
//printf("busycounter: %d\n",lastBusy);
OPLL_Write(&fm,0,w.addr);
w.addrOrVal=true;
delay=3;
}
}
OPLL_Clock(&fm,o);
unsigned char nextOut=cycleMapOPLL[fm.cycles];
if ((nextOut>=6 && properDrums) || !isMuted[nextOut]) {
os+=(o[0]+o[1]);
if (vrc7 || (fm.rm_enable&0x20)) oscBuf[nextOut]->data[oscBuf[nextOut]->needle++]=(o[0]+o[1])<<6;
} else {
if (vrc7 || (fm.rm_enable&0x20)) oscBuf[nextOut]->data[oscBuf[nextOut]->needle++]=0;
}
}
if (!(vrc7 || (fm.rm_enable&0x20))) for (int i=0; i<9; i++) {
unsigned char ch=visMapOPLL[i];
if ((i>=6 && properDrums) || !isMuted[ch]) {
oscBuf[ch]->data[oscBuf[ch]->needle++]=(fm.output_ch[i])<<6;
} else {
oscBuf[ch]->data[oscBuf[ch]->needle++]=0;
}
}
os*=50;
if (os<-32768) os=-32768;
if (os>32767) os=32767;
bufL[h]=os;
}
}
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(bool sysTick) {
for (int i=0; i<11; i++) {
chan[i].std.next();
if (chan[i].std.vol.had) {
chan[i].outVol=VOL_SCALE_LOG(chan[i].vol,MIN(15,chan[i].std.vol.val),15);
if (i<9) {
rWrite(0x30+i,((15-VOL_SCALE_LOG(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
}
}
if (chan[i].std.arp.had) {
if (!chan[i].inPorta) {
chan[i].baseFreq=NOTE_FREQUENCY(parent->calcArp(chan[i].note,chan[i].std.arp.val));
}
chan[i].freqChanged=true;
}
if (chan[i].std.wave.had && chan[i].state.opllPreset!=16) {
chan[i].state.opllPreset=chan[i].std.wave.val;
if (i<9) {
rWrite(0x30+i,((15-VOL_SCALE_LOG(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
}
}
if (chan[i].std.pitch.had) {
if (chan[i].std.pitch.mode) {
chan[i].pitch2+=chan[i].std.pitch.val;
CLAMP_VAR(chan[i].pitch2,-32768,32767);
} else {
chan[i].pitch2=chan[i].std.pitch.val;
}
chan[i].freqChanged=true;
}
if (chan[i].std.phaseReset.had) {
if (chan[i].std.phaseReset.val==1 && chan[i].active) {
chan[i].keyOn=true;
}
}
if (chan[i].state.opllPreset==0) {
if (chan[i].std.alg.had) { // SUS
chan[i].state.alg=chan[i].std.alg.val;
chan[i].freqChanged=true;
}
if (chan[i].std.fb.had) {
chan[i].state.fb=chan[i].std.fb.val;
rWrite(0x03,(chan[i].state.op[1].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
}
if (chan[i].std.fms.had) {
chan[i].state.fms=chan[i].std.fms.val;
rWrite(0x03,(chan[i].state.op[1].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
}
if (chan[i].std.ams.had) {
chan[i].state.ams=chan[i].std.ams.val;
rWrite(0x03,(chan[i].state.op[1].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
}
for (int j=0; j<2; j++) {
DivInstrumentFM::Operator& op=chan[i].state.op[j];
DivMacroInt::IntOp& m=chan[i].std.op[j];
if (m.am.had) {
op.am=m.am.val;
rWrite(0x00+j,(op.am<<7)|(op.vib<<6)|((op.ssgEnv&8)<<2)|(op.ksr<<4)|(op.mult));
}
if (m.ar.had) {
op.ar=m.ar.val;
rWrite(0x04+j,(op.ar<<4)|(op.dr));
}
if (m.dr.had) {
op.dr=m.dr.val;
rWrite(0x04+j,(op.ar<<4)|(op.dr));
}
if (m.mult.had) {
op.mult=m.mult.val;
rWrite(0x00+j,(op.am<<7)|(op.vib<<6)|((op.ssgEnv&8)<<2)|(op.ksr<<4)|(op.mult));
}
if (m.rr.had) {
op.rr=m.rr.val;
rWrite(0x06+j,(op.sl<<4)|(op.rr));
}
if (m.sl.had) {
op.sl=m.sl.val;
rWrite(0x06+j,(op.sl<<4)|(op.rr));
}
if (m.tl.had) {
op.tl=((j==1)?15:63)-m.tl.val;
if (j==1) {
if (i<9) {
rWrite(0x30+i,((15-VOL_SCALE_LOG(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
}
} else {
rWrite(0x02,(chan[i].state.op[0].ksl<<6)|(op.tl&63));
}
}
if (m.egt.had) {
op.ssgEnv=(m.egt.val&1)?8:0;
rWrite(0x00+j,(op.am<<7)|(op.vib<<6)|((op.ssgEnv&8)<<2)|(op.ksr<<4)|(op.mult));
}
if (m.ksl.had) {
op.ksl=m.ksl.val;
if (j==1) {
rWrite(0x02,(chan[i].state.op[0].ksl<<6)|(chan[i].state.op[0].tl&63));
} else {
rWrite(0x03,(chan[i].state.op[1].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
}
}
if (m.ksr.had) {
op.ksr=m.ksr.val;
rWrite(0x00+j,(op.am<<7)|(op.vib<<6)|((op.ssgEnv&8)<<2)|(op.ksr<<4)|(op.mult));
}
if (m.vib.had) {
op.vib=m.vib.val;
rWrite(0x00+j,(op.am<<7)|(op.vib<<6)|((op.ssgEnv&8)<<2)|(op.ksr<<4)|(op.mult));
}
}
}
if (chan[i].keyOn || chan[i].keyOff) {
if (i>=6 && properDrums) {
drumState&=~(0x10>>(i-6));
immWrite(0x0e,0x20|drumState);
} else if (i>=6 && drums) {
drumState&=~(0x10>>(chan[i].note%12));
immWrite(0x0e,0x20|drumState);
} else {
if (i<9) {
immWrite(0x20+i,(chan[i].freqH)|(chan[i].state.alg?0x20:0));
}
}
//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<11; i++) {
if (chan[i].freqChanged) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,octave(chan[i].baseFreq)*2,chan[i].pitch2,chipClock,CHIP_FREQBASE);
if (chan[i].fixedFreq>0) chan[i].freq=chan[i].fixedFreq;
if (chan[i].freq>262143) chan[i].freq=262143;
int freqt=toFreq(chan[i].freq)+chan[i].pitch2;
chan[i].freqL=freqt&0xff;
if (i>=6 && properDrums) {
immWrite(0x10+drumSlot[i],freqt&0xff);
immWrite(0x20+drumSlot[i],freqt>>8);
} else if (i<6 || !drums) {
if (i<9) {
immWrite(0x10+i,freqt&0xff);
}
}
chan[i].freqH=freqt>>8;
}
if (chan[i].keyOn && i>=6 && properDrums) {
if (!isMuted[i]) {
drumState|=(0x10>>(i-6));
immWrite(0x0e,0x20|drumState);
}
chan[i].keyOn=false;
} else if (chan[i].keyOn && i>=6 && drums) {
//printf("%d\n",chan[i].note%12);
drumState|=(0x10>>(chan[i].note%12));
immWrite(0x0e,0x20|drumState);
chan[i].keyOn=false;
} else if ((chan[i].keyOn || chan[i].freqChanged) && i<9) {
//immWrite(0x28,0xf0|konOffs[i]);
if (!(i>=6 && properDrums)) {
if (i<9) {
immWrite(0x20+i,(chan[i].freqH)|(chan[i].active<<4)|(chan[i].state.alg?0x20:0));
}
}
chan[i].keyOn=false;
}
chan[i].freqChanged=false;
}
}
#define OPLL_C_NUM 343
int DivPlatformOPLL::octave(int freq) {
if (freq>=OPLL_C_NUM*64) {
return 128;
} else if (freq>=OPLL_C_NUM*32) {
return 64;
} else if (freq>=OPLL_C_NUM*16) {
return 32;
} else if (freq>=OPLL_C_NUM*8) {
return 16;
} else if (freq>=OPLL_C_NUM*4) {
return 8;
} else if (freq>=OPLL_C_NUM*2) {
return 4;
} else if (freq>=OPLL_C_NUM) {
return 2;
} else {
return 1;
}
return 1;
}
int DivPlatformOPLL::toFreq(int freq) {
if (freq>=OPLL_C_NUM*64) {
return 0xe00|((freq>>7)&0x1ff);
} else if (freq>=OPLL_C_NUM*32) {
return 0xc00|((freq>>6)&0x1ff);
} else if (freq>=OPLL_C_NUM*16) {
return 0xa00|((freq>>5)&0x1ff);
} else if (freq>=OPLL_C_NUM*8) {
return 0x800|((freq>>4)&0x1ff);
} else if (freq>=OPLL_C_NUM*4) {
return 0x600|((freq>>3)&0x1ff);
} else if (freq>=OPLL_C_NUM*2) {
return 0x400|((freq>>2)&0x1ff);
} else if (freq>=OPLL_C_NUM) {
return 0x200|((freq>>1)&0x1ff);
} else {
return freq&0x1ff;
}
}
void DivPlatformOPLL::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
}
int DivPlatformOPLL::dispatch(DivCommand c) {
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
if (c.chan>=9 && !properDrums) return 0;
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_OPLL);
if (chan[c.chan].insChanged) {
chan[c.chan].state=ins->fm;
}
chan[c.chan].macroInit(ins);
if (!chan[c.chan].std.vol.will) {
chan[c.chan].outVol=chan[c.chan].vol;
}
if (c.chan>=6 && properDrums) { // drums mode
chan[c.chan].insChanged=false;
if (c.value!=DIV_NOTE_NULL) {
if (chan[c.chan].state.opllPreset==16 && chan[c.chan].state.fixedDrums) {
switch (c.chan) {
case 6:
chan[c.chan].fixedFreq=(chan[c.chan].state.kickFreq&511)<<(chan[c.chan].state.kickFreq>>9);
break;
case 7: case 10:
chan[c.chan].fixedFreq=(chan[c.chan].state.snareHatFreq&511)<<(chan[c.chan].state.snareHatFreq>>9);
break;
case 8: case 9:
chan[c.chan].fixedFreq=(chan[c.chan].state.tomTopFreq&511)<<(chan[c.chan].state.tomTopFreq>>9);
break;
default:
chan[c.chan].fixedFreq=0;
chan[c.chan].baseFreq=NOTE_FREQUENCY(c.value);
break;
}
} else {
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;
}
if (chan[c.chan].insChanged) {
// update custom preset
if (chan[c.chan].state.opllPreset==0) {
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
rWrite(0x00,(mod.am<<7)|(mod.vib<<6)|((mod.ssgEnv&8)<<2)|(mod.ksr<<4)|(mod.mult));
rWrite(0x01,(car.am<<7)|(car.vib<<6)|((car.ssgEnv&8)<<2)|(car.ksr<<4)|(car.mult));
rWrite(0x02,(mod.ksl<<6)|(mod.tl&63));
rWrite(0x03,(car.ksl<<6)|((chan[c.chan].state.fms&1)<<4)|((chan[c.chan].state.ams&1)<<3)|chan[c.chan].state.fb);
rWrite(0x04,(mod.ar<<4)|(mod.dr));
rWrite(0x05,(car.ar<<4)|(car.dr));
rWrite(0x06,(mod.sl<<4)|(mod.rr));
rWrite(0x07,(car.sl<<4)|(car.rr));
lastCustomMemory=c.chan;
}
if (chan[c.chan].state.opllPreset==16) { // compatible drums mode
if (c.chan>=6) {
drums=true;
immWrite(0x16,0x20);
immWrite(0x26,0x05);
immWrite(0x16,0x20);
immWrite(0x26,0x05);
immWrite(0x17,0x50);
immWrite(0x27,0x05);
immWrite(0x17,0x50);
immWrite(0x27,0x05);
immWrite(0x18,0xC0);
immWrite(0x28,0x01);
}
} else {
if (c.chan>=6) {
if (drums) {
drums=false;
immWrite(0x0e,0);
drumState=0;
}
}
if (c.chan<9) {
rWrite(0x30+c.chan,((15-VOL_SCALE_LOG(chan[c.chan].outVol,15-chan[c.chan].state.op[1].tl,15))&15)|(chan[c.chan].state.opllPreset<<4));
}
}
}
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;
if (c.chan>=6 && drums) {
switch (chan[c.chan].note%12) {
case 0: // kick
drumVol[0]=(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15);
break;
case 1: // snare
drumVol[1]=(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15);
break;
case 2: // tom
drumVol[2]=(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15);
break;
case 3: // top
drumVol[3]=(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15);
break;
default: // hi-hat
drumVol[4]=(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15);
break;
}
rWrite(0x36,drumVol[0]);
rWrite(0x37,drumVol[1]|(drumVol[4]<<4));
rWrite(0x38,drumVol[3]|(drumVol[2]<<4));
}
chan[c.chan].freqChanged=true;
}
chan[c.chan].keyOn=true;
chan[c.chan].active=true;
break;
}
case DIV_CMD_NOTE_OFF:
if (c.chan>=9 && !properDrums) return 0;
chan[c.chan].keyOff=true;
chan[c.chan].keyOn=false;
chan[c.chan].active=false;
break;
case DIV_CMD_NOTE_OFF_ENV:
if (c.chan>=9 && !properDrums) return 0;
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:
if (c.chan>=9 && !properDrums) return 0;
chan[c.chan].std.release();
break;
case DIV_CMD_VOLUME: {
if (c.chan>=9 && !properDrums) return 0;
chan[c.chan].vol=c.value;
if (!chan[c.chan].std.vol.has) {
chan[c.chan].outVol=c.value;
}
if (c.chan>=6 && properDrums) {
drumVol[c.chan-6]=15-chan[c.chan].outVol;
rWrite(0x36,drumVol[0]);
rWrite(0x37,drumVol[1]|(drumVol[4]<<4));
rWrite(0x38,drumVol[3]|(drumVol[2]<<4));
break;
} else if (c.chan<6 || !drums) {
if (c.chan<9) {
rWrite(0x30+c.chan,((15-VOL_SCALE_LOG(chan[c.chan].outVol,15-chan[c.chan].state.op[1].tl,15))&15)|(chan[c.chan].state.opllPreset<<4));
}
}
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: {
if (c.chan>=9 && !properDrums) return 0;
chan[c.chan].pitch=c.value;
chan[c.chan].freqChanged=true;
break;
}
case DIV_CMD_NOTE_PORTA: {
if (c.chan>=9 && !properDrums) return 0;
int destFreq=NOTE_FREQUENCY(c.value2);
int newFreq;
bool return2=false;
if (destFreq>chan[c.chan].baseFreq) {
newFreq=chan[c.chan].baseFreq+c.value*((parent->song.linearPitch==2)?1:octave(chan[c.chan].baseFreq));
if (newFreq>=destFreq) {
newFreq=destFreq;
return2=true;
}
} else {
newFreq=chan[c.chan].baseFreq-c.value*((parent->song.linearPitch==2)?1: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: {
if (c.chan>=9 && !properDrums) return 0;
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: {
if (c.chan>=9 && !properDrums) return 0;
//DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
chan[c.chan].state.fb=c.value&7;
rWrite(0x03,(car.ksl<<6)|((chan[c.chan].state.fms&1)<<4)|((chan[c.chan].state.ams&1)<<3)|chan[c.chan].state.fb);
break;
}
case DIV_CMD_FM_MULT: {
if (c.chan>=9 && !properDrums) return 0;
if (c.value==0) {
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
mod.mult=c.value2&15;
rWrite(0x00,(mod.am<<7)|(mod.vib<<6)|((mod.ssgEnv&8)<<2)|(mod.ksr<<4)|(mod.mult));
} else {
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
car.mult=c.value2&15;
rWrite(0x01,(car.am<<7)|(car.vib<<6)|((car.ssgEnv&8)<<2)|(car.ksr<<4)|(car.mult));
}
break;
}
case DIV_CMD_FM_TL: {
if (c.chan>=9 && !properDrums) return 0;
if (c.value==0) {
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
//DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
mod.tl=c.value2&63;
rWrite(0x02,(mod.ksl<<6)|(mod.tl&63));
} else {
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
car.tl=c.value2&15;
if (c.chan<9) {
rWrite(0x30+c.chan,((15-VOL_SCALE_LOG(chan[c.chan].outVol,15-chan[c.chan].state.op[1].tl,15))&15)|(chan[c.chan].state.opllPreset<<4));
}
}
break;
}
case DIV_CMD_FM_AR: {
if (c.chan>=9 && !properDrums) return 0;
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
if (c.value<0) {
mod.ar=c.value2&15;
car.ar=c.value2&15;
} else {
if (c.value==0) {
mod.ar=c.value2&15;
} else {
car.ar=c.value2&15;
}
}
rWrite(0x04,(mod.ar<<4)|(mod.dr));
rWrite(0x05,(car.ar<<4)|(car.dr));
break;
}
case DIV_CMD_FM_DR: {
if (c.chan>=9 && !properDrums) return 0;
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
if (c.value<0) {
mod.dr=c.value2&15;
car.dr=c.value2&15;
} else {
if (c.value==0) {
mod.dr=c.value2&15;
} else {
car.dr=c.value2&15;
}
}
rWrite(0x04,(mod.ar<<4)|(mod.dr));
rWrite(0x05,(car.ar<<4)|(car.dr));
break;
}
case DIV_CMD_FM_SL: {
if (c.chan>=9 && !properDrums) return 0;
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
if (c.value<0) {
mod.sl=c.value2&15;
car.sl=c.value2&15;
} else {
if (c.value==0) {
mod.sl=c.value2&15;
} else {
car.sl=c.value2&15;
}
}
rWrite(0x06,(mod.sl<<4)|(mod.rr));
rWrite(0x07,(car.sl<<4)|(car.rr));
break;
}
case DIV_CMD_FM_RR: {
if (c.chan>=9 && !properDrums) return 0;
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
if (c.value<0) {
mod.rr=c.value2&15;
car.rr=c.value2&15;
} else {
if (c.value==0) {
mod.rr=c.value2&15;
} else {
car.rr=c.value2&15;
}
}
rWrite(0x06,(mod.sl<<4)|(mod.rr));
rWrite(0x07,(car.sl<<4)|(car.rr));
break;
}
case DIV_CMD_FM_AM: {
if (c.chan>=9 && !properDrums) return 0;
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
if (c.value<0) {
mod.am=c.value2&1;
car.am=c.value2&1;
} else {
if (c.value==0) {
mod.am=c.value2&1;
} else {
car.am=c.value2&1;
}
}
rWrite(0x00,(mod.am<<7)|(mod.vib<<6)|((mod.ssgEnv&8)<<2)|(mod.ksr<<4)|(mod.mult));
rWrite(0x01,(car.am<<7)|(car.vib<<6)|((car.ssgEnv&8)<<2)|(car.ksr<<4)|(car.mult));
break;
}
case DIV_CMD_FM_VIB: {
if (c.chan>=9 && !properDrums) return 0;
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
if (c.value<0) {
mod.vib=c.value2&1;
car.vib=c.value2&1;
} else {
if (c.value==0) {
mod.vib=c.value2&1;
} else {
car.vib=c.value2&1;
}
}
rWrite(0x00,(mod.am<<7)|(mod.vib<<6)|((mod.ssgEnv&8)<<2)|(mod.ksr<<4)|(mod.mult));
rWrite(0x01,(car.am<<7)|(car.vib<<6)|((car.ssgEnv&8)<<2)|(car.ksr<<4)|(car.mult));
break;
}
case DIV_CMD_FM_KSR: {
if (c.chan>=9 && !properDrums) return 0;
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
if (c.value<0) {
mod.ksr=c.value2&1;
car.ksr=c.value2&1;
} else {
if (c.value==0) {
mod.ksr=c.value2&1;
} else {
car.ksr=c.value2&1;
}
}
rWrite(0x00,(mod.am<<7)|(mod.vib<<6)|((mod.ssgEnv&8)<<2)|(mod.ksr<<4)|(mod.mult));
rWrite(0x01,(car.am<<7)|(car.vib<<6)|((car.ssgEnv&8)<<2)|(car.ksr<<4)|(car.mult));
break;
}
case DIV_CMD_FM_SUS: {
if (c.chan>=9 && !properDrums) return 0;
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
if (c.value<0) {
mod.ssgEnv=c.value2?8:0;
car.ssgEnv=c.value2?8:0;
} else {
if (c.value==0) {
mod.ssgEnv=c.value2?8:0;
} else {
car.ssgEnv=c.value2?8:0;
}
}
rWrite(0x00,(mod.am<<7)|(mod.vib<<6)|((mod.ssgEnv&8)<<2)|(mod.ksr<<4)|(mod.mult));
rWrite(0x01,(car.am<<7)|(car.vib<<6)|((car.ssgEnv&8)<<2)|(car.ksr<<4)|(car.mult));
break;
}
case DIV_CMD_FM_RS: {
if (c.chan>=9 && !properDrums) return 0;
DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
if (c.value<0) {
mod.ksl=c.value2&3;
car.ksl=c.value2&3;
} else {
if (c.value==0) {
mod.ksl=c.value2&3;
} else {
car.ksl=c.value2&3;
}
}
rWrite(0x02,(mod.ksl<<6)|(mod.tl&63));
rWrite(0x03,(car.ksl<<6)|((chan[c.chan].state.fms&1)<<4)|((chan[c.chan].state.ams&1)<<3)|chan[c.chan].state.fb);
break;
}
case DIV_CMD_FM_EXTCH:
if (!properDrumsSys) break;
if ((int)properDrums==c.value) break;
if (c.value) {
properDrums=true;
immWrite(0x0e,0x20);
} else {
properDrums=false;
immWrite(0x0e,0x00);
drumState=0;
}
break;
case DIV_ALWAYS_SET_VOLUME:
return 0;
break;
case DIV_CMD_GET_VOLMAX:
return 15;
break;
case DIV_CMD_PRE_PORTA:
if (c.chan>=9 && !properDrums) return 0;
if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will) chan[c.chan].baseFreq=NOTE_FREQUENCY(chan[c.chan].note);
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<9; i++) {
if (i>=6 && properDrums) continue;
// update custom preset
if (chan[i].state.opllPreset==0 && i==lastCustomMemory) {
DivInstrumentFM::Operator& mod=chan[i].state.op[0];
DivInstrumentFM::Operator& car=chan[i].state.op[1];
rWrite(0x00,(mod.am<<7)|(mod.vib<<6)|((mod.ssgEnv&8)<<2)|(mod.ksr<<4)|(mod.mult));
rWrite(0x01,(car.am<<7)|(car.vib<<6)|((car.ssgEnv&8)<<2)|(car.ksr<<4)|(car.mult));
rWrite(0x02,(mod.ksl<<6)|(mod.tl&63));
rWrite(0x03,(car.ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
rWrite(0x04,(mod.ar<<4)|(mod.dr));
rWrite(0x05,(car.ar<<4)|(car.dr));
rWrite(0x06,(mod.sl<<4)|(mod.rr));
rWrite(0x07,(car.sl<<4)|(car.rr));
}
if (i<9) {
rWrite(0x30+i,((15-VOL_SCALE_LOG(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
}
if (!(i>=6 && properDrums)) {
if (chan[i].active) {
chan[i].keyOn=true;
chan[i].freqChanged=true;
chan[i].insChanged=true;
}
}
}
if (drums) { // WHAT?! FIX THIS!
immWrite(0x16,0x20);
immWrite(0x26,0x05);
immWrite(0x16,0x20);
immWrite(0x26,0x05);
immWrite(0x17,0x50);
immWrite(0x27,0x05);
immWrite(0x17,0x50);
immWrite(0x27,0x05);
immWrite(0x18,0xC0);
immWrite(0x28,0x01);
}
// restore drum volumes
if (properDrums) {
rWrite(0x36,drumVol[0]);
rWrite(0x37,drumVol[1]|(drumVol[4]<<4));
rWrite(0x38,drumVol[3]|(drumVol[2]<<4));
}
drumState=0;
}
void DivPlatformOPLL::toggleRegisterDump(bool enable) {
DivDispatch::toggleRegisterDump(enable);
}
void DivPlatformOPLL::setVRC7(bool vrc) {
vrc7=vrc;
}
void DivPlatformOPLL::setProperDrums(bool pd) {
properDrums=pd;
properDrumsSys=pd;
}
void* DivPlatformOPLL::getChanState(int ch) {
return &chan[ch];
}
DivMacroInt* DivPlatformOPLL::getChanMacroInt(int ch) {
return &chan[ch].std;
}
DivDispatchOscBuffer* DivPlatformOPLL::getOscBuffer(int ch) {
if (ch>=9) return NULL;
return oscBuf[ch];
}
unsigned char* DivPlatformOPLL::getRegisterPool() {
return regPool;
}
int DivPlatformOPLL::getRegisterPoolSize() {
return 64;
}
void DivPlatformOPLL::reset() {
while (!writes.empty()) writes.pop();
memset(regPool,0,256);
if (vrc7) {
OPLL_Reset(&fm,opll_type_ds1001);
} else {
OPLL_Reset(&fm,opll_type_ym2413);
switch (patchSet) {
case 0:
fm.patchrom=OPLL_GetPatchROM(opll_type_ym2413);
break;
case 1:
fm.patchrom=OPLL_GetPatchROM(opll_type_ymf281);
break;
case 2:
fm.patchrom=OPLL_GetPatchROM(opll_type_ym2423);
break;
case 3:
fm.patchrom=OPLL_GetPatchROM(opll_type_ds1001);
break;
}
}
if (dumpWrites) {
addWrite(0xffffffff,0);
}
for (int i=0; i<11; i++) {
chan[i]=DivPlatformOPLL::Channel();
chan[i].std.setEngine(parent);
chan[i].vol=15;
chan[i].outVol=15;
}
for (int i=0; i<256; i++) {
oldWrites[i]=-1;
pendingWrites[i]=-1;
}
lastBusy=60;
drumState=0;
lastCustomMemory=-1;
drumVol[0]=0;
drumVol[1]=0;
drumVol[2]=0;
drumVol[3]=0;
drumVol[4]=0;
delay=0;
drums=false;
properDrums=properDrumsSys;
if (properDrums) {
immWrite(0x0e,0x20);
}
}
bool DivPlatformOPLL::keyOffAffectsArp(int ch) {
return false;
}
bool DivPlatformOPLL::keyOffAffectsPorta(int ch) {
return false;
}
void DivPlatformOPLL::notifyInsChange(int ins) {
for (int i=0; i<11; 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&15)==3) {
chipClock=COLOR_NTSC/2.0;
} else if ((flags&15)==2) {
chipClock=4000000.0;
} else if ((flags&15)==1) {
chipClock=COLOR_PAL*4.0/5.0;
} else {
chipClock=COLOR_NTSC;
}
rate=chipClock/36;
patchSet=flags>>4;
for (int i=0; i<11; i++) {
oscBuf[i]->rate=rate/2;
}
}
int DivPlatformOPLL::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
parent=p;
dumpWrites=false;
skipRegisterWrites=false;
patchSet=0;
for (int i=0; i<11; i++) {
isMuted[i]=false;
oscBuf[i]=new DivDispatchOscBuffer;
}
setFlags(flags);
reset();
return 11;
}
void DivPlatformOPLL::quit() {
for (int i=0; i<11; i++) {
delete oscBuf[i];
}
}
DivPlatformOPLL::~DivPlatformOPLL() {
}
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