c009cb3536
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
480 lines
13 KiB
C++
480 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 "saa.h"
|
|
#include "../engine.h"
|
|
#include "sound/saa1099.h"
|
|
#include <string.h>
|
|
#include <math.h>
|
|
|
|
#define rWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
|
|
|
|
#define CHIP_DIVIDER 2
|
|
|
|
const char* regCheatSheetSAA[]={
|
|
"Vol0", "00",
|
|
"Vol1", "01",
|
|
"Vol2", "02",
|
|
"Vol3", "03",
|
|
"Vol4", "04",
|
|
"Vol5", "05",
|
|
"Freq0", "08",
|
|
"Freq1", "09",
|
|
"Freq2", "0A",
|
|
"Freq3", "0B",
|
|
"Freq4", "0C",
|
|
"Freq5", "0D",
|
|
"Octave10", "10",
|
|
"Octave32", "11",
|
|
"Octave54", "12",
|
|
"ToneOn", "14",
|
|
"NoiseOn", "15",
|
|
"NoiseCtl", "16",
|
|
"EnvCtl0", "18",
|
|
"EnvCtl1", "19",
|
|
"Power", "1C",
|
|
NULL
|
|
};
|
|
|
|
const char** DivPlatformSAA1099::getRegisterSheet() {
|
|
return regCheatSheetSAA;
|
|
}
|
|
|
|
void DivPlatformSAA1099::acquire_saaSound(short* bufL, short* bufR, size_t start, size_t len) {
|
|
if (saaBufLen<len*2) {
|
|
saaBufLen=len*2;
|
|
for (int i=0; i<2; i++) {
|
|
delete[] saaBuf[i];
|
|
saaBuf[i]=new short[saaBufLen];
|
|
}
|
|
}
|
|
while (!writes.empty()) {
|
|
QueuedWrite w=writes.front();
|
|
saa_saaSound->WriteAddressData(w.addr,w.val);
|
|
regPool[w.addr&0x1f]=w.val;
|
|
writes.pop();
|
|
}
|
|
saa_saaSound->GenerateMany((unsigned char*)saaBuf[0],len,oscBuf);
|
|
for (size_t i=0; i<len; i++) {
|
|
bufL[i+start]=saaBuf[0][i<<1];
|
|
bufR[i+start]=saaBuf[0][1+(i<<1)];
|
|
}
|
|
}
|
|
|
|
void DivPlatformSAA1099::acquire(short* bufL, short* bufR, size_t start, size_t len) {
|
|
acquire_saaSound(bufL,bufR,start,len);
|
|
}
|
|
|
|
inline unsigned char applyPan(unsigned char vol, unsigned char pan) {
|
|
return ((vol*(pan>>4))/15)|(((vol*(pan&15))/15)<<4);
|
|
}
|
|
|
|
void DivPlatformSAA1099::tick(bool sysTick) {
|
|
for (int i=0; i<6; i++) {
|
|
chan[i].std.next();
|
|
if (chan[i].std.vol.had) {
|
|
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;
|
|
if (isMuted[i]) {
|
|
rWrite(i,0);
|
|
} else {
|
|
rWrite(i,applyPan(chan[i].outVol&15,chan[i].pan));
|
|
}
|
|
}
|
|
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) {
|
|
saaNoise[i/3]=chan[i].std.duty.val&3;
|
|
rWrite(0x16,saaNoise[0]|(saaNoise[1]<<4));
|
|
}
|
|
if (chan[i].std.wave.had) {
|
|
chan[i].psgMode=chan[i].std.wave.val&3;
|
|
}
|
|
if (chan[i].std.panL.had) {
|
|
chan[i].pan&=0x0f;
|
|
chan[i].pan|=(chan[i].std.panL.val&15)<<4;
|
|
}
|
|
|
|
if (chan[i].std.panR.had) {
|
|
chan[i].pan&=0xf0;
|
|
chan[i].pan|=chan[i].std.panR.val&15;
|
|
}
|
|
if (chan[i].std.panL.had || chan[i].std.panR.had) {
|
|
if (isMuted[i]) {
|
|
rWrite(i,0);
|
|
} else {
|
|
if (chan[i].std.vol.had) {
|
|
if (chan[i].active) rWrite(i,applyPan(chan[i].outVol&15,chan[i].pan));
|
|
} else {
|
|
if (chan[i].active) rWrite(i,applyPan(chan[i].vol&15,chan[i].pan));
|
|
}
|
|
}
|
|
}
|
|
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.ex1.had) {
|
|
saaEnv[i/3]=chan[i].std.ex1.val;
|
|
rWrite(0x18+(i/3),saaEnv[i/3]);
|
|
}
|
|
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);
|
|
if (chan[i].freq>65535) chan[i].freq=65535;
|
|
if (chan[i].freq>=32768) {
|
|
chan[i].freqH=7;
|
|
} else if (chan[i].freq>=16384) {
|
|
chan[i].freqH=6;
|
|
} else if (chan[i].freq>=8192) {
|
|
chan[i].freqH=5;
|
|
} else if (chan[i].freq>=4096) {
|
|
chan[i].freqH=4;
|
|
} else if (chan[i].freq>=2048) {
|
|
chan[i].freqH=3;
|
|
} else if (chan[i].freq>=1024) {
|
|
chan[i].freqH=2;
|
|
} else if (chan[i].freq>=512) {
|
|
chan[i].freqH=1;
|
|
} else {
|
|
chan[i].freqH=0;
|
|
}
|
|
chan[i].freqL=0xff-(chan[i].freq>>chan[i].freqH);
|
|
chan[i].freqH=7-chan[i].freqH;
|
|
if (chan[i].freq>4095) chan[i].freq=4095;
|
|
if (chan[i].keyOn) {
|
|
}
|
|
if (chan[i].keyOff) {
|
|
rWrite(i,0);
|
|
}
|
|
rWrite(0x08+i,chan[i].freqL);
|
|
rWrite(0x10+(i>>1),chan[i&6].freqH|(chan[1+(i&6)].freqH<<4));
|
|
if (chan[i].keyOn) chan[i].keyOn=false;
|
|
if (chan[i].keyOff) chan[i].keyOff=false;
|
|
chan[i].freqChanged=false;
|
|
}
|
|
}
|
|
|
|
rWrite(0x14,(chan[0].psgMode&1)|
|
|
((chan[1].psgMode&1)<<1)|
|
|
((chan[2].psgMode&1)<<2)|
|
|
((chan[3].psgMode&1)<<3)|
|
|
((chan[4].psgMode&1)<<4)|
|
|
((chan[5].psgMode&1)<<5)
|
|
);
|
|
|
|
rWrite(0x15,((chan[0].psgMode&2)>>1)|
|
|
(chan[1].psgMode&2)|
|
|
((chan[2].psgMode&2)<<1)|
|
|
((chan[3].psgMode&2)<<2)|
|
|
((chan[4].psgMode&2)<<3)|
|
|
((chan[5].psgMode&2)<<4)
|
|
);
|
|
}
|
|
|
|
int DivPlatformSAA1099::dispatch(DivCommand c) {
|
|
switch (c.cmd) {
|
|
case DIV_CMD_NOTE_ON: {
|
|
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_SAA1099);
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
|
|
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(ins);
|
|
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
|
|
chan[c.chan].outVol=chan[c.chan].vol;
|
|
}
|
|
if (isMuted[c.chan]) {
|
|
rWrite(c.chan,0);
|
|
} else {
|
|
rWrite(c.chan,applyPan(chan[c.chan].vol&15,chan[c.chan].pan));
|
|
}
|
|
break;
|
|
}
|
|
case DIV_CMD_NOTE_OFF:
|
|
chan[c.chan].keyOff=true;
|
|
chan[c.chan].active=false;
|
|
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_VOLUME: {
|
|
chan[c.chan].vol=c.value;
|
|
if (!chan[c.chan].std.vol.has) {
|
|
chan[c.chan].outVol=c.value;
|
|
}
|
|
if (isMuted[c.chan]) {
|
|
rWrite(c.chan,0);
|
|
} else {
|
|
if (chan[c.chan].active) rWrite(c.chan,applyPan(chan[c.chan].vol&15,chan[c.chan].pan));
|
|
}
|
|
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_PERIODIC(c.value2);
|
|
bool return2=false;
|
|
if (destFreq>chan[c.chan].baseFreq) {
|
|
chan[c.chan].baseFreq+=c.value*((parent->song.linearPitch==2)?1:(8-chan[c.chan].freqH));
|
|
if (chan[c.chan].baseFreq>=destFreq) {
|
|
chan[c.chan].baseFreq=destFreq;
|
|
return2=true;
|
|
}
|
|
} else {
|
|
chan[c.chan].baseFreq-=c.value*((parent->song.linearPitch==2)?1:(8-chan[c.chan].freqH));
|
|
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_PANNING:
|
|
chan[c.chan].pan=(c.value&0xf0)|(c.value2>>4);
|
|
if (isMuted[c.chan]) {
|
|
rWrite(c.chan,0);
|
|
} else {
|
|
if (chan[c.chan].active) rWrite(c.chan,applyPan(chan[c.chan].vol&15,chan[c.chan].pan));
|
|
}
|
|
break;
|
|
case DIV_CMD_LEGATO: {
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
|
|
chan[c.chan].freqChanged=true;
|
|
break;
|
|
}
|
|
case DIV_CMD_STD_NOISE_MODE:
|
|
chan[c.chan].psgMode=(c.value&1)|((c.value&16)>>3);
|
|
break;
|
|
case DIV_CMD_STD_NOISE_FREQ:
|
|
saaNoise[c.chan/3]=(c.value&1)|((c.value&16)>>3);
|
|
rWrite(0x16,saaNoise[0]|(saaNoise[1]<<4));
|
|
break;
|
|
case DIV_CMD_SAA_ENVELOPE:
|
|
saaEnv[c.chan/3]=c.value;
|
|
rWrite(0x18+(c.chan/3),c.value);
|
|
break;
|
|
case DIV_ALWAYS_SET_VOLUME:
|
|
return 0;
|
|
break;
|
|
case DIV_CMD_GET_VOLMAX:
|
|
return 15;
|
|
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_SAA1099));
|
|
}
|
|
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_PRE_NOTE:
|
|
break;
|
|
default:
|
|
//printf("WARNING: unimplemented command %d\n",c.cmd);
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void DivPlatformSAA1099::muteChannel(int ch, bool mute) {
|
|
isMuted[ch]=mute;
|
|
if (isMuted[ch]) {
|
|
rWrite(ch,0);
|
|
} else {
|
|
if (chan[ch].active) rWrite(ch,applyPan(chan[ch].outVol&15,chan[ch].pan));
|
|
}
|
|
}
|
|
|
|
void DivPlatformSAA1099::forceIns() {
|
|
for (int i=0; i<6; i++) {
|
|
chan[i].insChanged=true;
|
|
chan[i].freqChanged=true;
|
|
}
|
|
rWrite(0x18,saaEnv[0]);
|
|
rWrite(0x19,saaEnv[1]);
|
|
rWrite(0x16,saaNoise[0]|(saaNoise[1]<<4));
|
|
}
|
|
|
|
void* DivPlatformSAA1099::getChanState(int ch) {
|
|
return &chan[ch];
|
|
}
|
|
|
|
DivMacroInt* DivPlatformSAA1099::getChanMacroInt(int ch) {
|
|
return &chan[ch].std;
|
|
}
|
|
|
|
DivDispatchOscBuffer* DivPlatformSAA1099::getOscBuffer(int ch) {
|
|
return oscBuf[ch];
|
|
}
|
|
|
|
unsigned char* DivPlatformSAA1099::getRegisterPool() {
|
|
return regPool;
|
|
}
|
|
|
|
int DivPlatformSAA1099::getRegisterPoolSize() {
|
|
return 32;
|
|
}
|
|
|
|
void DivPlatformSAA1099::reset() {
|
|
while (!writes.empty()) writes.pop();
|
|
memset(regPool,0,32);
|
|
saa_saaSound->Clear();
|
|
for (int i=0; i<6; i++) {
|
|
chan[i]=DivPlatformSAA1099::Channel();
|
|
chan[i].std.setEngine(parent);
|
|
chan[i].vol=0x0f;
|
|
}
|
|
if (dumpWrites) {
|
|
addWrite(0xffffffff,0);
|
|
}
|
|
|
|
lastBusy=60;
|
|
dacMode=0;
|
|
dacPeriod=0;
|
|
dacPos=0;
|
|
dacRate=0;
|
|
dacSample=-1;
|
|
sampleBank=0;
|
|
saaEnv[0]=0;
|
|
saaEnv[1]=0;
|
|
saaNoise[0]=0;
|
|
saaNoise[1]=0;
|
|
|
|
delay=0;
|
|
|
|
extMode=false;
|
|
|
|
rWrite(8,255);
|
|
rWrite(9,255);
|
|
rWrite(10,255);
|
|
rWrite(11,255);
|
|
rWrite(12,255);
|
|
rWrite(13,255);
|
|
rWrite(16,0x77);
|
|
rWrite(17,0x77);
|
|
rWrite(18,0x77);
|
|
rWrite(0x1c,2);
|
|
rWrite(0x1c,1);
|
|
}
|
|
|
|
bool DivPlatformSAA1099::isStereo() {
|
|
return true;
|
|
}
|
|
|
|
int DivPlatformSAA1099::getPortaFloor(int ch) {
|
|
return 12;
|
|
}
|
|
|
|
bool DivPlatformSAA1099::keyOffAffectsArp(int ch) {
|
|
return true;
|
|
}
|
|
|
|
void DivPlatformSAA1099::notifyInsDeletion(void* ins) {
|
|
for (int i=0; i<6; i++) {
|
|
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
|
|
}
|
|
}
|
|
|
|
void DivPlatformSAA1099::setFlags(unsigned int flags) {
|
|
if (flags==2) {
|
|
chipClock=COLOR_PAL*8.0/5.0;
|
|
} else if (flags==1) {
|
|
chipClock=COLOR_NTSC*2.0;
|
|
} else {
|
|
chipClock=8000000;
|
|
}
|
|
rate=chipClock/32;
|
|
|
|
for (int i=0; i<6; i++) {
|
|
oscBuf[i]->rate=rate;
|
|
}
|
|
|
|
saa_saaSound->SetClockRate(chipClock);
|
|
saa_saaSound->SetSampleRate(rate);
|
|
}
|
|
|
|
void DivPlatformSAA1099::poke(unsigned int addr, unsigned short val) {
|
|
rWrite(addr,val);
|
|
}
|
|
|
|
void DivPlatformSAA1099::poke(std::vector<DivRegWrite>& wlist) {
|
|
for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
|
|
}
|
|
|
|
int DivPlatformSAA1099::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
|
|
parent=p;
|
|
dumpWrites=false;
|
|
skipRegisterWrites=false;
|
|
saa_saaSound=NULL;
|
|
for (int i=0; i<6; i++) {
|
|
isMuted[i]=false;
|
|
oscBuf[i]=new DivDispatchOscBuffer;
|
|
}
|
|
saa_saaSound=CreateCSAASound();
|
|
saa_saaSound->SetOversample(1);
|
|
saa_saaSound->SetSoundParameters(SAAP_NOFILTER|SAAP_16BIT|SAAP_STEREO);
|
|
setFlags(flags);
|
|
saaBufLen=65536;
|
|
for (int i=0; i<2; i++) saaBuf[i]=new short[saaBufLen];
|
|
reset();
|
|
return 3;
|
|
}
|
|
|
|
void DivPlatformSAA1099::quit() {
|
|
for (int i=0; i<6; i++) {
|
|
delete oscBuf[i];
|
|
}
|
|
if (saa_saaSound!=NULL) {
|
|
DestroyCSAASound(saa_saaSound);
|
|
saa_saaSound=NULL;
|
|
}
|
|
for (int i=0; i<2; i++) delete[] saaBuf[i];
|
|
}
|