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per-channel oscilloscope, part 5

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SAA1099 (SAASound and MAME), Lynx, MMC5, N163, PC Engine, PC Speaker,
PET, QSound, WonderSwan, VERA, VIC-20, VRC6 and X1-010!
This commit is contained in:
tildearrow 2022-05-01 02:40:03 -05:00
parent dadfd7efee
commit c0e9b48b5b
47 changed files with 345 additions and 38 deletions
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31
src/engine/platform/mmc5.cpp
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@ -59,7 +59,7 @@ void DivPlatformMMC5::acquire(short* bufL, short* bufR, size_t start, size_t len
if (dacPeriod>=rate) {
DivSample* s=parent->getSample(dacSample);
if (s->samples>0) {
if (!isMuted[4]) {
if (!isMuted[2]) {
rWrite(0x5011,((unsigned char)s->data8[dacPos]+0x80));
}
if (++dacPos>=s->samples) {
@ -92,6 +92,13 @@ void DivPlatformMMC5::acquire(short* bufL, short* bufR, size_t start, size_t len
if (sample>32767) sample=32767;
if (sample<-32768) sample=-32768;
bufL[i]=sample;
if (++writeOscBuf>=32) {
writeOscBuf=0;
oscBuf[0]->data[oscBuf[0]->needle++]=isMuted[0]?0:((mmc5->S3.output*10)<<7);
oscBuf[1]->data[oscBuf[1]->needle++]=isMuted[1]?0:((mmc5->S4.output*10)<<7);
oscBuf[2]->data[oscBuf[2]->needle++]=isMuted[2]?0:((mmc5->pcm.output*2)<<6);
}
}
}
@ -164,18 +171,18 @@ void DivPlatformMMC5::tick(bool sysTick) {
}
// PCM
if (chan[4].freqChanged) {
chan[4].freq=parent->calcFreq(chan[4].baseFreq,chan[4].pitch,false);
if (chan[4].furnaceDac) {
if (chan[2].freqChanged) {
chan[2].freq=parent->calcFreq(chan[2].baseFreq,chan[2].pitch,false);
if (chan[2].furnaceDac) {
double off=1.0;
if (dacSample>=0 && dacSample<parent->song.sampleLen) {
DivSample* s=parent->getSample(dacSample);
off=(double)s->centerRate/8363.0;
}
dacRate=MIN(chan[4].freq*off,32000);
dacRate=MIN(chan[2].freq*off,32000);
if (dumpWrites) addWrite(0xffff0001,dacRate);
}
chan[4].freqChanged=false;
chan[2].freqChanged=false;
}
}
@ -342,6 +349,10 @@ void* DivPlatformMMC5::getChanState(int ch) {
return &chan[ch];
}
DivDispatchOscBuffer* DivPlatformMMC5::getOscBuffer(int ch) {
return oscBuf[ch];
}
unsigned char* DivPlatformMMC5::getRegisterPool() {
return regPool;
}
@ -389,6 +400,9 @@ void DivPlatformMMC5::setFlags(unsigned int flags) {
rate=COLOR_NTSC/2.0;
}
chipClock=rate;
for (int i=0; i<3; i++) {
oscBuf[i]->rate=rate/32;
}
}
void DivPlatformMMC5::notifyInsDeletion(void* ins) {
@ -410,9 +424,11 @@ int DivPlatformMMC5::init(DivEngine* p, int channels, int sugRate, unsigned int
apuType=flags;
dumpWrites=false;
skipRegisterWrites=false;
writeOscBuf=0;
mmc5=new struct _mmc5;
for (int i=0; i<3; i++) {
isMuted[i]=false;
oscBuf[i]=new DivDispatchOscBuffer;
//mmc5->muted[i]=false; // TODO
}
setFlags(flags);
@ -423,6 +439,9 @@ int DivPlatformMMC5::init(DivEngine* p, int channels, int sugRate, unsigned int
}
void DivPlatformMMC5::quit() {
for (int i=0; i<3; i++) {
delete oscBuf[i];
}
delete mmc5;
}