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PCE: PCM might work again

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This commit is contained in:
tildearrow 2025-03-04 11:57:41 -05:00
parent f0a3e3f590
commit 5d3a22a502
1 changed files with 28 additions and 9 deletions
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37
src/engine/platform/pce.cpp
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@ -66,12 +66,31 @@ void DivPlatformPCE::acquireDirect(blip_buffer_t** bb, size_t off, size_t len) {
pce->bb[1]=bb[1];
size_t pos=off;
for (size_t h=0; h<len; h++) {
// PCM part
/*
pce->ResetTS(pos);
while (!writes.empty()) {
QueuedWrite w=writes.front();
pce->Write(pos,w.addr,w.val);
regPool[w.addr&0x0f]=w.val;
writes.pop();
}
for (size_t h=0; h<len;) {
int advance=len-h;
// heuristic
int remainTime=9;
for (int i=0; i<6; i++) {
if (chan[i].pcm && chan[i].dacSample!=-1) {
chan[i].dacPeriod+=chan[i].dacRate;
if (chan[i].dacRate<=0) continue;
remainTime=(rate-chan[i].dacPeriod)/chan[i].dacRate;
if (remainTime<advance) advance=remainTime;
}
}
// PCM part
for (int i=0; i<6; i++) {
if (chan[i].pcm && chan[i].dacSample!=-1) {
chan[i].dacPeriod+=chan[i].dacRate*advance;
if (chan[i].dacPeriod>rate) {
DivSample* s=parent->getSample(chan[i].dacSample);
if (s->samples<=0 || chan[i].dacPos>=s->samples) {
@ -97,25 +116,25 @@ void DivPlatformPCE::acquireDirect(blip_buffer_t** bb, size_t off, size_t len) {
chan[i].dacPeriod-=rate;
}
}
}*/
}
// PCE part
// WHAT?????????
pce->ResetTS(pos);
pos+=advance;
while (!writes.empty()) {
QueuedWrite w=writes.front();
pce->Write(pos,w.addr,w.val);
regPool[w.addr&0x0f]=w.val;
writes.pop();
}
pce->Update(len+pos);
break;
pce->Update(pos);
/*
for (int i=0; i<6; i++) {
oscBuf[i]->putSample(h,CLAMP(pce->channel[i].blip_prev_samp[0]+pce->channel[i].blip_prev_samp[1],-32768,32767));
}*/
pos++;
h+=advance;
}
for (int i=0; i<6; i++) {