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SNES: fix some clicking issues

This commit is contained in:
tildearrow 2022-10-08 22:22:01 -05:00
parent ec22150fb5
commit 6179ef493c
2 changed files with 49 additions and 25 deletions
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69
src/engine/platform/snes.cpp
View File

@ -69,14 +69,16 @@ void DivPlatformSNES::acquire(short* bufL, short* bufR, size_t start, size_t len
short out[2];
short chOut[16];
for (size_t h=start; h<start+len; h++) {
// TODO: delay
if (!writes.empty()) {
QueuedWrite w=writes.front();
dsp.write(w.addr,w.val);
regPool[w.addr&0x7f]=w.val;
writes.pop();
if (--delay<=0) {
delay=0;
if (!writes.empty()) {
QueuedWrite w=writes.front();
dsp.write(w.addr,w.val);
regPool[w.addr&0x7f]=w.val;
writes.pop();
delay=(w.addr==0x5c)?8:1;
}
}
dsp.set_output(out,1);
dsp.run(32);
dsp.get_voice_outputs(chOut);
@ -159,7 +161,7 @@ void DivPlatformSNES::tick(bool sysTick) {
}
}
if (chan[i].std.vol.had || chan[i].std.panL.had || chan[i].std.panR.had || hasInverted) {
writeOutVol(i);
chan[i].shallWriteVol=true;
}
if (chan[i].std.ex2.had) {
if (chan[i].std.ex2.val&0x80) {
@ -182,7 +184,7 @@ void DivPlatformSNES::tick(bool sysTick) {
chan[i].state.gainMode=DivInstrumentSNES::GAIN_MODE_DIRECT;
chan[i].state.gain=chan[i].std.ex2.val&127;
}
writeEnv(i);
chan[i].shallWriteEnv=true;
}
if (chan[i].setPos) {
// force keyon
@ -196,6 +198,8 @@ void DivPlatformSNES::tick(bool sysTick) {
updateWave(i);
}
}
}
for (int i=0; i<8; i++) {
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
DivSample* s=parent->getSample(chan[i].sample);
double off=(s->centerRate>=1)?((double)s->centerRate/8363.0):1.0;
@ -228,6 +232,7 @@ void DivPlatformSNES::tick(bool sysTick) {
sampleMem[tabAddr+2]=loop&0xff;
sampleMem[tabAddr+3]=loop>>8;
kon|=(1<<i);
koff|=(1<<i);
chan[i].keyOn=false;
}
if (chan[i].keyOff) {
@ -243,6 +248,9 @@ void DivPlatformSNES::tick(bool sysTick) {
}
}
}
if (koff!=0) {
rWrite(0x5c,koff);
}
if (writeControl) {
unsigned char control=(noiseFreq&0x1f)|(echoOn?0:0x20);
rWrite(0x6c,control);
@ -290,11 +298,24 @@ void DivPlatformSNES::tick(bool sysTick) {
rWrite(0x4d,echoBits);
writeEcho=false;
}
for (int i=0; i<8; i++) {
if (chan[i].shallWriteEnv) {
writeEnv(i);
chan[i].shallWriteEnv=false;
}
}
if (koff!=0) {
rWrite(0x5c,0);
}
if (kon!=0) {
rWrite(0x4c,kon);
}
// always write KOFF as it's constantly polled
rWrite(0x5c,koff);
for (int i=0; i<8; i++) {
if (chan[i].shallWriteVol) {
writeOutVol(i);
chan[i].shallWriteVol=false;
}
}
}
int DivPlatformSNES::dispatch(DivCommand c) {
@ -324,7 +345,7 @@ int DivPlatformSNES::dispatch(DivCommand c) {
}
chan[c.chan].active=true;
if (chan[c.chan].insChanged || chan[c.chan].state.sus) {
writeEnv(c.chan);
chan[c.chan].shallWriteEnv=true;
}
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=round(NOTE_FREQUENCY(c.value));
@ -341,7 +362,7 @@ int DivPlatformSNES::dispatch(DivCommand c) {
chan[c.chan].keyOff=true;
chan[c.chan].keyOn=false;
if (chan[c.chan].state.sus) {
writeEnv(c.chan);
chan[c.chan].shallWriteEnv=true;
} else {
chan[c.chan].macroInit(NULL);
}
@ -351,7 +372,7 @@ int DivPlatformSNES::dispatch(DivCommand c) {
chan[c.chan].keyOff=true;
chan[c.chan].keyOn=false;
if (chan[c.chan].state.sus) {
writeEnv(c.chan);
chan[c.chan].shallWriteEnv=true;
}
chan[c.chan].std.release();
break;
@ -369,7 +390,7 @@ int DivPlatformSNES::dispatch(DivCommand c) {
chan[c.chan].vol=c.value;
if (!chan[c.chan].std.vol.has) {
chan[c.chan].outVol=c.value;
writeOutVol(c.chan);
chan[c.chan].shallWriteVol=true;
}
}
break;
@ -379,7 +400,7 @@ int DivPlatformSNES::dispatch(DivCommand c) {
case DIV_CMD_PANNING:
chan[c.chan].panL=c.value>>1;
chan[c.chan].panR=c.value2>>1;
writeOutVol(c.chan);
chan[c.chan].shallWriteVol=true;
break;
case DIV_CMD_PITCH:
chan[c.chan].pitch=c.value;
@ -441,7 +462,7 @@ int DivPlatformSNES::dispatch(DivCommand c) {
case DIV_CMD_SNES_INVERT:
chan[c.chan].invertL=(c.value>>4);
chan[c.chan].invertR=c.chan&15;
writeOutVol(c.chan);
chan[c.chan].shallWriteVol=true;
break;
case DIV_CMD_SNES_GAIN_MODE:
if (c.value) {
@ -466,7 +487,7 @@ int DivPlatformSNES::dispatch(DivCommand c) {
} else {
chan[c.chan].state.useEnv=true;
}
writeEnv(c.chan);
chan[c.chan].shallWriteEnv=true;
break;
case DIV_CMD_SNES_GAIN:
if (chan[c.chan].state.gainMode==DivInstrumentSNES::GAIN_MODE_DIRECT) {
@ -474,7 +495,7 @@ int DivPlatformSNES::dispatch(DivCommand c) {
} else {
chan[c.chan].state.gain=c.value&0x1f;
}
if (!chan[c.chan].state.useEnv) writeEnv(c.chan);
if (!chan[c.chan].state.useEnv) chan[c.chan].shallWriteEnv=true;
break;
case DIV_CMD_STD_NOISE_FREQ:
noiseFreq=c.value&0x1f;
@ -482,19 +503,19 @@ int DivPlatformSNES::dispatch(DivCommand c) {
break;
case DIV_CMD_FM_AR:
chan[c.chan].state.a=c.value&15;
if (chan[c.chan].state.useEnv) writeEnv(c.chan);
if (chan[c.chan].state.useEnv) chan[c.chan].shallWriteEnv=true;
break;
case DIV_CMD_FM_DR:
chan[c.chan].state.d=c.value&7;
if (chan[c.chan].state.useEnv) writeEnv(c.chan);
if (chan[c.chan].state.useEnv) chan[c.chan].shallWriteEnv=true;
break;
case DIV_CMD_FM_SL:
chan[c.chan].state.s=c.value&7;
if (chan[c.chan].state.useEnv) writeEnv(c.chan);
if (chan[c.chan].state.useEnv) chan[c.chan].shallWriteEnv=true;
break;
case DIV_CMD_FM_RR:
chan[c.chan].state.r=c.value&0x1f;
if (chan[c.chan].state.useEnv) writeEnv(c.chan);
if (chan[c.chan].state.useEnv) chan[c.chan].shallWriteEnv=true;
break;
case DIV_CMD_SNES_ECHO:
chan[c.chan].echo=c.value;
@ -605,7 +626,7 @@ void DivPlatformSNES::writeEnv(int ch) {
void DivPlatformSNES::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
writeOutVol(ch);
chan[ch].shallWriteVol=true;
}
void DivPlatformSNES::forceIns() {

5
src/engine/platform/snes.h
View File

@ -33,7 +33,7 @@ class DivPlatformSNES: public DivDispatch {
int sample, wave, ins;
int note;
int panL, panR;
bool active, insChanged, freqChanged, keyOn, keyOff, inPorta, useWave, setPos, noise, echo, pitchMod, invertL, invertR;
bool active, insChanged, freqChanged, keyOn, keyOff, inPorta, useWave, setPos, noise, echo, pitchMod, invertL, invertR, shallWriteVol, shallWriteEnv;
int vol, outVol;
int wtLen;
DivInstrumentSNES state;
@ -68,6 +68,8 @@ class DivPlatformSNES: public DivDispatch {
pitchMod(false),
invertL(false),
invertR(false),
shallWriteVol(false),
shallWriteEnv(false),
vol(127),
outVol(127),
wtLen(16) {}
@ -77,6 +79,7 @@ class DivPlatformSNES: public DivDispatch {
bool isMuted[8];
int globalVolL, globalVolR;
unsigned char noiseFreq;
signed char delay;
signed char echoVolL, echoVolR, echoFeedback;
signed char echoFIR[8];
unsigned char echoDelay;