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SoundUnit: implement switch roles flag

This commit is contained in:
tildearrow 2022-08-14 14:19:30 -05:00
parent 774a949cca
commit 1b10c547e3
2 changed files with 39 additions and 13 deletions
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48
src/engine/platform/su.cpp
View File

@ -26,6 +26,7 @@
#define rWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
#define chWrite(c,a,v) rWrite(((c)<<5)|(a),v);
#define CHIP_DIVIDER 8
#define CHIP_FREQBASE 524288
const char** DivPlatformSoundUnit::getRegisterSheet() {
@ -98,6 +99,13 @@ const char* DivPlatformSoundUnit::getEffectName(unsigned char effect) {
return NULL;
}
double DivPlatformSoundUnit::NOTE_SU(int ch, int note) {
if (chan[ch].switchRoles) {
return NOTE_PERIODIC(note);
}
return NOTE_FREQUENCY(note);
}
void DivPlatformSoundUnit::acquire(short* bufL, short* bufR, size_t start, size_t len) {
for (size_t h=start; h<start+len; h++) {
while (!writes.empty()) {
@ -137,15 +145,15 @@ void DivPlatformSoundUnit::tick(bool sysTick) {
if (chan[i].std.arp.had) {
if (!chan[i].inPorta) {
if (chan[i].std.arp.mode) {
chan[i].baseFreq=NOTE_FREQUENCY(chan[i].std.arp.val);
chan[i].baseFreq=NOTE_SU(i,chan[i].std.arp.val);
} else {
chan[i].baseFreq=NOTE_FREQUENCY(chan[i].note+chan[i].std.arp.val);
chan[i].baseFreq=NOTE_SU(i,chan[i].note+chan[i].std.arp.val);
}
}
chan[i].freqChanged=true;
} else {
if (chan[i].std.arp.mode && chan[i].std.arp.finished) {
chan[i].baseFreq=NOTE_FREQUENCY(chan[i].note);
chan[i].baseFreq=NOTE_SU(i,chan[i].note);
chan[i].freqChanged=true;
}
}
@ -190,13 +198,18 @@ void DivPlatformSoundUnit::tick(bool sysTick) {
if (chan[i].std.ex4.had) {
chan[i].syncTimer=chan[i].std.ex4.val&65535;
chan[i].timerSync=(chan[i].syncTimer>0);
chWrite(i,0x1e,chan[i].syncTimer&0xff);
chWrite(i,0x1f,chan[i].syncTimer>>8);
if (chan[i].switchRoles) {
chWrite(i,0x00,chan[i].syncTimer&0xff);
chWrite(i,0x01,chan[i].syncTimer>>8);
} else {
chWrite(i,0x1e,chan[i].syncTimer&0xff);
chWrite(i,0x1f,chan[i].syncTimer>>8);
}
writeControlUpper(i);
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
//DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_SU);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,2,chan[i].pitch2,chipClock,CHIP_FREQBASE);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].switchRoles,2,chan[i].pitch2,chipClock,chan[i].switchRoles?CHIP_DIVIDER:CHIP_FREQBASE);
if (chan[i].pcm) {
DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_SU);
// TODO: sample map?
@ -213,8 +226,13 @@ void DivPlatformSoundUnit::tick(bool sysTick) {
}
if (chan[i].freq<0) chan[i].freq=0;
if (chan[i].freq>65535) chan[i].freq=65535;
chWrite(i,0x00,chan[i].freq&0xff);
chWrite(i,0x01,chan[i].freq>>8);
if (chan[i].switchRoles) {
chWrite(i,0x1e,chan[i].freq&0xff);
chWrite(i,0x1f,chan[i].freq>>8);
} else {
chWrite(i,0x00,chan[i].freq&0xff);
chWrite(i,0x01,chan[i].freq>>8);
}
if (chan[i].keyOn) {
if (chan[i].pcm) {
DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_SU);
@ -256,6 +274,7 @@ int DivPlatformSoundUnit::dispatch(DivCommand c) {
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_SU);
chan[c.chan].switchRoles=ins->su.switchRoles;
if (chan[c.chan].pcm && !(ins->type==DIV_INS_AMIGA || ins->su.useSample)) {
chan[c.chan].pcm=(ins->type==DIV_INS_AMIGA || ins->su.useSample);
writeControl(c.chan);
@ -263,7 +282,7 @@ int DivPlatformSoundUnit::dispatch(DivCommand c) {
}
chan[c.chan].pcm=(ins->type==DIV_INS_AMIGA || ins->su.useSample);
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=NOTE_FREQUENCY(c.value);
chan[c.chan].baseFreq=NOTE_SU(c.chan,c.value);
chan[c.chan].freqChanged=true;
chan[c.chan].note=c.value;
}
@ -421,7 +440,7 @@ int DivPlatformSoundUnit::dispatch(DivCommand c) {
}
break;
case DIV_CMD_NOTE_PORTA: {
int destFreq=NOTE_FREQUENCY(c.value2);
int destFreq=NOTE_SU(c.chan,c.value2);
bool return2=false;
if (destFreq>chan[c.chan].baseFreq) {
chan[c.chan].baseFreq+=c.value*((parent->song.linearPitch==2)?1:(1+(chan[c.chan].baseFreq>>9)));
@ -453,7 +472,7 @@ int DivPlatformSoundUnit::dispatch(DivCommand c) {
chan[c.chan].keyOn=true;
break;
case DIV_CMD_LEGATO:
chan[c.chan].baseFreq=NOTE_FREQUENCY(c.value+((chan[c.chan].std.arp.will && !chan[c.chan].std.arp.mode)?(chan[c.chan].std.arp.val):(0)));
chan[c.chan].baseFreq=NOTE_SU(c.chan,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;
@ -461,7 +480,7 @@ int DivPlatformSoundUnit::dispatch(DivCommand c) {
if (chan[c.chan].active && c.value2) {
if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_SU));
}
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);
if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will) chan[c.chan].baseFreq=NOTE_SU(c.chan,chan[c.chan].note);
chan[c.chan].inPorta=c.value;
break;
case DIV_CMD_GET_VOLMAX:
@ -485,6 +504,11 @@ void DivPlatformSoundUnit::forceIns() {
for (int i=0; i<8; i++) {
chan[i].insChanged=true;
chan[i].freqChanged=true;
// restore channel attributes
chWrite(i,0x03,chan[i].pan);
writeControl(i);
writeControlUpper(i);
}
}

4
src/engine/platform/su.h
View File

@ -31,7 +31,7 @@ class DivPlatformSoundUnit: public DivDispatch {
int ins, cutoff, baseCutoff, res, control, hasOffset;
signed char pan;
unsigned char duty;
bool active, insChanged, freqChanged, keyOn, keyOff, inPorta, noise, pcm, phaseReset, filterPhaseReset;
bool active, insChanged, freqChanged, keyOn, keyOff, inPorta, noise, pcm, phaseReset, filterPhaseReset, switchRoles;
bool pcmLoop, timerSync, freqSweep, volSweep, cutSweep;
unsigned short freqSweepP, volSweepP, cutSweepP;
unsigned char freqSweepB, volSweepB, cutSweepB;
@ -67,6 +67,7 @@ class DivPlatformSoundUnit: public DivDispatch {
pcm(false),
phaseReset(false),
filterPhaseReset(false),
switchRoles(false),
pcmLoop(false),
timerSync(false),
freqSweep(false),
@ -108,6 +109,7 @@ class DivPlatformSoundUnit: public DivDispatch {
SoundUnit* su;
size_t sampleMemLen;
unsigned char regPool[128];
double NOTE_SU(int ch, int note);
void writeControl(int ch);
void writeControlUpper(int ch);