446 lines
13 KiB
C++
446 lines
13 KiB
C++
/**
|
|
* 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 "mmc5.h"
|
|
#include "sound/nes/mmc5.h"
|
|
#include "../engine.h"
|
|
#include <math.h>
|
|
|
|
#define CHIP_DIVIDER 16
|
|
|
|
#define rWrite(a,v) if (!skipRegisterWrites) {extcl_cpu_wr_mem_MMC5(mmc5,a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
|
|
|
|
const char* regCheatSheetMMC5[]={
|
|
"S0Volume", "5000",
|
|
"S0PeriodL", "5002",
|
|
"S0PeriodH", "5003",
|
|
"S1Volume", "5004",
|
|
"S1PeriodL", "5006",
|
|
"S1PeriodH", "5007",
|
|
"PCMControl", "4010",
|
|
"PCMWrite", "4011",
|
|
"APUControl", "4015",
|
|
NULL
|
|
};
|
|
|
|
const char** DivPlatformMMC5::getRegisterSheet() {
|
|
return regCheatSheetMMC5;
|
|
}
|
|
|
|
void DivPlatformMMC5::acquire(short* bufL, short* bufR, size_t start, size_t len) {
|
|
for (size_t i=start; i<start+len; i++) {
|
|
if (dacSample!=-1) {
|
|
dacPeriod+=dacRate;
|
|
if (dacPeriod>=rate) {
|
|
DivSample* s=parent->getSample(dacSample);
|
|
if (s->samples>0) {
|
|
if (!isMuted[2]) {
|
|
rWrite(0x5011,((unsigned char)s->data8[dacPos]+0x80));
|
|
}
|
|
dacPos++;
|
|
if (s->isLoopable() && dacPos>=(unsigned int)s->loopEnd) {
|
|
dacPos=s->loopStart;
|
|
} else if (dacPos>=s->samples) {
|
|
dacSample=-1;
|
|
}
|
|
dacPeriod-=rate;
|
|
} else {
|
|
dacSample=-1;
|
|
}
|
|
}
|
|
}
|
|
|
|
extcl_envelope_clock_MMC5(mmc5);
|
|
extcl_length_clock_MMC5(mmc5);
|
|
extcl_apu_tick_MMC5(mmc5);
|
|
if (mmc5->clocked) {
|
|
mmc5->clocked=false;
|
|
}
|
|
int sample=isMuted[0]?0:(mmc5->S3.output*10);
|
|
if (!isMuted[1]) {
|
|
sample+=mmc5->S4.output*10;
|
|
}
|
|
if (!isMuted[2]) {
|
|
sample+=mmc5->pcm.output*2;
|
|
}
|
|
if (sample>32767) sample=32767;
|
|
if (sample<-32768) sample=-32768;
|
|
bufL[i]=sample;
|
|
|
|
if (++writeOscBuf>=32) {
|
|
writeOscBuf=0;
|
|
oscBuf[0]->data[oscBuf[0]->needle++]=isMuted[0]?0:((mmc5->S3.output*10)<<7);
|
|
oscBuf[1]->data[oscBuf[1]->needle++]=isMuted[1]?0:((mmc5->S4.output*10)<<7);
|
|
oscBuf[2]->data[oscBuf[2]->needle++]=isMuted[2]?0:((mmc5->pcm.output*2)<<6);
|
|
}
|
|
}
|
|
}
|
|
|
|
void DivPlatformMMC5::tick(bool sysTick) {
|
|
for (int i=0; i<2; i++) {
|
|
chan[i].std.next();
|
|
if (chan[i].std.vol.had) {
|
|
// ok, why are the volumes like that?
|
|
chan[i].outVol=VOL_SCALE_LINEAR_BROKEN(chan[i].vol&15,MIN(15,chan[i].std.vol.val),15);
|
|
if (chan[i].outVol<0) chan[i].outVol=0;
|
|
rWrite(0x5000+i*4,0x30|chan[i].outVol|((chan[i].duty&3)<<6));
|
|
}
|
|
// TODO: arp macros on NES PCM?
|
|
if (chan[i].std.arp.had) {
|
|
if (!chan[i].inPorta) {
|
|
chan[i].baseFreq=NOTE_PERIODIC(parent->calcArp(chan[i].note,chan[i].std.arp.val));
|
|
}
|
|
chan[i].freqChanged=true;
|
|
}
|
|
if (chan[i].std.duty.had) {
|
|
chan[i].duty=chan[i].std.duty.val;
|
|
rWrite(0x5000+i*4,0x30|chan[i].outVol|((chan[i].duty&3)<<6));
|
|
}
|
|
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].freqChanged=true;
|
|
chan[i].prevFreq=-1;
|
|
}
|
|
}
|
|
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
|
|
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER)-1;
|
|
if (chan[i].freq>2047) chan[i].freq=2047;
|
|
if (chan[i].freq<0) chan[i].freq=0;
|
|
if (chan[i].keyOn) {
|
|
//rWrite(16+i*5+1,((chan[i].duty&3)<<6)|(63-(ins->gb.soundLen&63)));
|
|
//rWrite(16+i*5+2,((chan[i].vol<<4))|(ins->gb.envLen&7)|((ins->gb.envDir&1)<<3));
|
|
}
|
|
if (chan[i].keyOff) {
|
|
//rWrite(16+i*5+2,8);
|
|
rWrite(0x5000+i*4,0x30);
|
|
}
|
|
rWrite(0x5002+i*4,chan[i].freq&0xff);
|
|
if ((chan[i].prevFreq>>8)!=(chan[i].freq>>8)) {
|
|
rWrite(0x5003+i*4,0xf8|(chan[i].freq>>8));
|
|
}
|
|
if (chan[i].freq!=65535 && chan[i].freq!=0) {
|
|
chan[i].prevFreq=chan[i].freq;
|
|
}
|
|
if (chan[i].keyOn) chan[i].keyOn=false;
|
|
if (chan[i].keyOff) chan[i].keyOff=false;
|
|
chan[i].freqChanged=false;
|
|
}
|
|
}
|
|
|
|
// PCM
|
|
if (chan[2].freqChanged) {
|
|
chan[2].freq=parent->calcFreq(chan[2].baseFreq,chan[2].pitch,false,0,chan[2].pitch2,1,1);
|
|
if (chan[2].furnaceDac) {
|
|
double off=1.0;
|
|
if (dacSample>=0 && dacSample<parent->song.sampleLen) {
|
|
DivSample* s=parent->getSample(dacSample);
|
|
off=(double)s->centerRate/8363.0;
|
|
}
|
|
dacRate=MIN(chan[2].freq*off,32000);
|
|
if (dumpWrites) addWrite(0xffff0001,dacRate);
|
|
}
|
|
chan[2].freqChanged=false;
|
|
}
|
|
}
|
|
|
|
int DivPlatformMMC5::dispatch(DivCommand c) {
|
|
switch (c.cmd) {
|
|
case DIV_CMD_NOTE_ON:
|
|
if (c.chan==2) { // PCM
|
|
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_STD);
|
|
if (ins->type==DIV_INS_AMIGA) {
|
|
dacSample=ins->amiga.getSample(c.value);
|
|
if (dacSample<0 || dacSample>=parent->song.sampleLen) {
|
|
dacSample=-1;
|
|
if (dumpWrites) addWrite(0xffff0002,0);
|
|
break;
|
|
} else {
|
|
if (dumpWrites) addWrite(0xffff0000,dacSample);
|
|
}
|
|
dacPos=0;
|
|
dacPeriod=0;
|
|
chan[c.chan].baseFreq=parent->calcBaseFreq(1,1,c.value,false);
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].note=c.value;
|
|
}
|
|
chan[c.chan].active=true;
|
|
chan[c.chan].keyOn=true;
|
|
chan[c.chan].furnaceDac=true;
|
|
} else {
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].note=c.value;
|
|
}
|
|
dacSample=12*sampleBank+chan[c.chan].note%12;
|
|
if (dacSample>=parent->song.sampleLen) {
|
|
dacSample=-1;
|
|
if (dumpWrites) addWrite(0xffff0002,0);
|
|
break;
|
|
} else {
|
|
if (dumpWrites) addWrite(0xffff0000,dacSample);
|
|
}
|
|
dacPos=0;
|
|
dacPeriod=0;
|
|
dacRate=parent->getSample(dacSample)->rate;
|
|
if (dumpWrites) addWrite(0xffff0001,dacRate);
|
|
chan[c.chan].furnaceDac=false;
|
|
}
|
|
break;
|
|
} else {
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
|
|
}
|
|
}
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].note=c.value;
|
|
}
|
|
chan[c.chan].active=true;
|
|
chan[c.chan].keyOn=true;
|
|
chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_STD));
|
|
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
|
|
chan[c.chan].outVol=chan[c.chan].vol;
|
|
}
|
|
rWrite(0x5000+c.chan*4,0x30|chan[c.chan].vol|((chan[c.chan].duty&3)<<6));
|
|
break;
|
|
case DIV_CMD_NOTE_OFF:
|
|
if (c.chan==2) {
|
|
dacSample=-1;
|
|
if (dumpWrites) addWrite(0xffff0002,0);
|
|
}
|
|
chan[c.chan].active=false;
|
|
chan[c.chan].keyOff=true;
|
|
chan[c.chan].macroInit(NULL);
|
|
break;
|
|
case DIV_CMD_NOTE_OFF_ENV:
|
|
case DIV_CMD_ENV_RELEASE:
|
|
chan[c.chan].std.release();
|
|
break;
|
|
case DIV_CMD_INSTRUMENT:
|
|
if (chan[c.chan].ins!=c.value || c.value2==1) {
|
|
chan[c.chan].ins=c.value;
|
|
}
|
|
break;
|
|
case DIV_CMD_VOLUME:
|
|
if (chan[c.chan].vol!=c.value) {
|
|
chan[c.chan].vol=c.value;
|
|
if (!chan[c.chan].std.vol.has) {
|
|
chan[c.chan].outVol=c.value;
|
|
}
|
|
if (chan[c.chan].active) {
|
|
rWrite(0x5000+c.chan*4,0x30|chan[c.chan].vol|((chan[c.chan].duty&3)<<6));
|
|
}
|
|
}
|
|
break;
|
|
case DIV_CMD_GET_VOLUME:
|
|
return chan[c.chan].vol;
|
|
break;
|
|
case DIV_CMD_PITCH:
|
|
chan[c.chan].pitch=c.value;
|
|
chan[c.chan].freqChanged=true;
|
|
break;
|
|
case DIV_CMD_NOTE_PORTA: {
|
|
int destFreq=(c.chan==2)?(parent->calcBaseFreq(1,1,c.value2,false)):(NOTE_PERIODIC(c.value2));
|
|
bool return2=false;
|
|
if (destFreq>chan[c.chan].baseFreq) {
|
|
chan[c.chan].baseFreq+=c.value;
|
|
if (chan[c.chan].baseFreq>=destFreq) {
|
|
chan[c.chan].baseFreq=destFreq;
|
|
return2=true;
|
|
}
|
|
} else {
|
|
chan[c.chan].baseFreq-=c.value;
|
|
if (chan[c.chan].baseFreq<=destFreq) {
|
|
chan[c.chan].baseFreq=destFreq;
|
|
return2=true;
|
|
}
|
|
}
|
|
chan[c.chan].freqChanged=true;
|
|
if (return2) {
|
|
chan[c.chan].inPorta=false;
|
|
return 2;
|
|
}
|
|
break;
|
|
}
|
|
case DIV_CMD_STD_NOISE_MODE:
|
|
chan[c.chan].duty=c.value;
|
|
rWrite(0x5000+c.chan*4,0x30|(chan[c.chan].active?chan[c.chan].outVol:0)|((chan[c.chan].duty&3)<<6));
|
|
break;
|
|
case DIV_CMD_SAMPLE_BANK:
|
|
sampleBank=c.value;
|
|
if (sampleBank>(parent->song.sample.size()/12)) {
|
|
sampleBank=parent->song.sample.size()/12;
|
|
}
|
|
break;
|
|
case DIV_CMD_LEGATO:
|
|
if (c.chan==2) {
|
|
chan[c.chan].baseFreq=parent->calcBaseFreq(1,1,c.value+((chan[c.chan].std.arp.will && !chan[c.chan].std.arp.mode)?(chan[c.chan].std.arp.val):(0)),false);
|
|
} else {
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+((chan[c.chan].std.arp.will && !chan[c.chan].std.arp.mode)?(chan[c.chan].std.arp.val):(0)));
|
|
}
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].note=c.value;
|
|
break;
|
|
case DIV_CMD_PRE_PORTA:
|
|
if (chan[c.chan].active && c.value2) {
|
|
if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_STD));
|
|
}
|
|
if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will) chan[c.chan].baseFreq=NOTE_PERIODIC(chan[c.chan].note);
|
|
chan[c.chan].inPorta=c.value;
|
|
break;
|
|
case DIV_CMD_GET_VOLMAX:
|
|
return 15;
|
|
break;
|
|
case DIV_ALWAYS_SET_VOLUME:
|
|
return 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void DivPlatformMMC5::muteChannel(int ch, bool mute) {
|
|
isMuted[ch]=mute;
|
|
}
|
|
|
|
void DivPlatformMMC5::forceIns() {
|
|
for (int i=0; i<3; i++) {
|
|
chan[i].insChanged=true;
|
|
chan[i].prevFreq=65535;
|
|
}
|
|
}
|
|
|
|
void* DivPlatformMMC5::getChanState(int ch) {
|
|
return &chan[ch];
|
|
}
|
|
|
|
DivMacroInt* DivPlatformMMC5::getChanMacroInt(int ch) {
|
|
return &chan[ch].std;
|
|
}
|
|
|
|
DivDispatchOscBuffer* DivPlatformMMC5::getOscBuffer(int ch) {
|
|
return oscBuf[ch];
|
|
}
|
|
|
|
unsigned char* DivPlatformMMC5::getRegisterPool() {
|
|
return regPool;
|
|
}
|
|
|
|
int DivPlatformMMC5::getRegisterPoolSize() {
|
|
return 32;
|
|
}
|
|
|
|
float DivPlatformMMC5::getPostAmp() {
|
|
return 64.0f;
|
|
}
|
|
|
|
void DivPlatformMMC5::reset() {
|
|
for (int i=0; i<3; i++) {
|
|
chan[i]=DivPlatformMMC5::Channel();
|
|
chan[i].std.setEngine(parent);
|
|
}
|
|
if (dumpWrites) {
|
|
addWrite(0xffffffff,0);
|
|
}
|
|
|
|
dacPeriod=0;
|
|
dacPos=0;
|
|
dacRate=0;
|
|
dacSample=-1;
|
|
sampleBank=0;
|
|
|
|
map_init_MMC5(mmc5);
|
|
memset(regPool,0,128);
|
|
|
|
rWrite(0x5015,0x03);
|
|
rWrite(0x5010,0x00);
|
|
}
|
|
|
|
bool DivPlatformMMC5::keyOffAffectsArp(int ch) {
|
|
return true;
|
|
}
|
|
|
|
void DivPlatformMMC5::setFlags(const DivConfig& flags) {
|
|
int clockSel=flags.getInt("clockSel",0);
|
|
if (clockSel==2) { // Dendy
|
|
chipClock=COLOR_PAL*2.0/5.0;
|
|
} else if (clockSel==1) { // PAL
|
|
chipClock=COLOR_PAL*3.0/8.0;
|
|
} else { // NTSC
|
|
chipClock=COLOR_NTSC/2.0;
|
|
}
|
|
CHECK_CUSTOM_CLOCK;
|
|
rate=chipClock;
|
|
for (int i=0; i<3; i++) {
|
|
oscBuf[i]->rate=rate/32;
|
|
}
|
|
}
|
|
|
|
void DivPlatformMMC5::notifyInsDeletion(void* ins) {
|
|
for (int i=0; i<3; i++) {
|
|
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
|
|
}
|
|
}
|
|
|
|
void DivPlatformMMC5::poke(unsigned int addr, unsigned short val) {
|
|
rWrite(addr,val);
|
|
}
|
|
|
|
void DivPlatformMMC5::poke(std::vector<DivRegWrite>& wlist) {
|
|
for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
|
|
}
|
|
|
|
int DivPlatformMMC5::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
|
|
parent=p;
|
|
dumpWrites=false;
|
|
skipRegisterWrites=false;
|
|
writeOscBuf=0;
|
|
mmc5=new struct _mmc5;
|
|
for (int i=0; i<3; i++) {
|
|
isMuted[i]=false;
|
|
oscBuf[i]=new DivDispatchOscBuffer;
|
|
//mmc5->muted[i]=false; // TODO
|
|
}
|
|
setFlags(flags);
|
|
|
|
init_nla_table(500,500);
|
|
reset();
|
|
return 5;
|
|
}
|
|
|
|
void DivPlatformMMC5::quit() {
|
|
for (int i=0; i<3; i++) {
|
|
delete oscBuf[i];
|
|
}
|
|
delete mmc5;
|
|
}
|
|
|
|
DivPlatformMMC5::~DivPlatformMMC5() {
|
|
}
|