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FDS: lower CPU usage

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This commit is contained in:
tildearrow 2025-03-03 02:27:00 -05:00
parent b3b50bdb66
commit 71ac185cbf
1 changed files with 8 additions and 8 deletions
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16
src/engine/platform/fds.cpp
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@ -75,16 +75,13 @@ void DivPlatformFDS::acquire_NSFPlay(short* buf, size_t len) {
int out[2];
oscBuf->begin(len);
for (size_t i=0; i<len; i++) {
fds_NP->Tick(1);
fds_NP->Tick(16);
fds_NP->Render(out);
int sample=isMuted[0]?0:(out[0]<<1);
if (sample>32767) sample=32767;
if (sample<-32768) sample=-32768;
buf[i]=sample;
if (++writeOscBuf>=32) {
writeOscBuf=0;
oscBuf->putSample(i,sample*3);
}
oscBuf->putSample(i,sample*3);
}
oscBuf->end(len);
}
@ -489,11 +486,14 @@ void DivPlatformFDS::setFlags(const DivConfig& flags) {
chipClock=COLOR_NTSC/2.0;
}
CHECK_CUSTOM_CLOCK;
rate=chipClock;
oscBuf->setRate(rate);
if (useNP) {
fds_NP->SetClock(rate);
rate=chipClock/16;
oscBuf->setRate(rate);
fds_NP->SetClock(chipClock);
fds_NP->SetRate(rate);
} else {
rate=chipClock;
oscBuf->setRate(rate);
}
}