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dev118 - SNES true sustain

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This commit is contained in:
tildearrow 2022-09-28 19:08:22 -05:00
parent 6f1a41de1e
commit 6028523eaf
6 changed files with 40 additions and 14 deletions
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30
src/engine/platform/snes.cpp
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@ -208,7 +208,9 @@ void DivPlatformSNES::tick(bool sysTick) {
chan[i].keyOn=false;
}
if (chan[i].keyOff) {
koff|=(1<<i);
if (!chan[i].state.sus) {
koff|=(1<<i);
}
chan[i].keyOff=false;
}
if (chan[i].freqChanged) {
@ -296,6 +298,9 @@ int DivPlatformSNES::dispatch(DivCommand c) {
}
if (chan[c.chan].insChanged) {
chan[c.chan].state=ins->snes;
}
chan[c.chan].active=true;
if (chan[c.chan].insChanged || chan[c.chan].state.sus) {
writeEnv(c.chan);
}
if (c.value!=DIV_NOTE_NULL) {
@ -303,19 +308,30 @@ int DivPlatformSNES::dispatch(DivCommand c) {
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);
chan[c.chan].insChanged=false;
break;
}
case DIV_CMD_NOTE_OFF:
chan[c.chan].sample=-1;
chan[c.chan].active=false;
chan[c.chan].keyOff=true;
chan[c.chan].macroInit(NULL);
chan[c.chan].keyOn=false;
if (chan[c.chan].state.sus) {
writeEnv(c.chan);
} else {
chan[c.chan].macroInit(NULL);
}
break;
case DIV_CMD_NOTE_OFF_ENV:
chan[c.chan].active=false;
chan[c.chan].keyOff=true;
chan[c.chan].keyOn=false;
if (chan[c.chan].state.sus) {
writeEnv(c.chan);
}
chan[c.chan].std.release();
break;
case DIV_CMD_ENV_RELEASE:
chan[c.chan].std.release();
break;
@ -537,7 +553,11 @@ void DivPlatformSNES::writeOutVol(int ch) {
void DivPlatformSNES::writeEnv(int ch) {
if (chan[ch].state.useEnv) {
chWrite(ch,5,chan[ch].state.a|(chan[ch].state.d<<4)|0x80);
chWrite(ch,6,chan[ch].state.r|(chan[ch].state.s<<5));
if (chan[ch].state.sus && chan[ch].active) {
chWrite(ch,6,chan[ch].state.s<<5);
} else {
chWrite(ch,6,chan[ch].state.r|(chan[ch].state.s<<5));
}
} else {
chWrite(ch,5,0);
switch (chan[ch].state.gainMode) {