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NDS: acquireDirect()

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it took a while

master volume may not work
This commit is contained in:
tildearrow 2025-03-08 18:42:19 -05:00
parent ce59a015e9
commit c9695caf35
4 changed files with 204 additions and 56 deletions
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39
src/engine/platform/nds.cpp
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@ -68,26 +68,39 @@ const char** DivPlatformNDS::getRegisterSheet() {
return regCheatSheetNDS;
}
void DivPlatformNDS::acquire(short** buf, size_t len) {
void DivPlatformNDS::acquireDirect(blip_buffer_t** bb, size_t len) {
for (int i=0; i<16; i++) {
oscBuf[i]->begin(len);
}
nds.set_bb(bb[0],bb[1]);
nds.set_oscbuf(oscBuf);
nds.resetTS(0);
nds.tick(len);
/*
for (size_t h=0; h<len; h++) {
nds.tick(coreQuality);
int advance=len;//nds.predict();
//if (advance<1) advance=1;
//if (advance>(int)(len-h)) advance=len-h;
h+=advance-1;
int lout=((nds.loutput()-0x200)<<5); // scale to 16 bit
int rout=((nds.routput()-0x200)<<5); // scale to 16 bit
if (lout>32767) lout=32767;
if (lout<-32768) lout=-32768;
if (rout>32767) rout=32767;
if (rout<-32768) rout=-32768;
buf[0][h]=lout;
buf[1][h]=rout;
if (lastOut[0]!=lout) {
blip_add_delta(bb[0],h,lout-lastOut[0]);
lastOut[0]=lout;
}
if (lastOut[1]!=rout) {
blip_add_delta(bb[1],h,rout-lastOut[1]);
lastOut[1]=rout;
}
for (int i=0; i<16; i++) {
oscBuf[i]->putSample(h,(nds.chan_lout(i)+nds.chan_rout(i))>>1);
}
}
}*/
for (int i=0; i<16; i++) {
oscBuf[i]->end(len);
@ -453,6 +466,8 @@ void DivPlatformNDS::reset() {
memset(regPool,0,288);
nds.reset();
globalVolume=0x7f;
lastOut[0]=0;
lastOut[1]=0;
rWrite32(0x100,0x8000|globalVolume); // enable keyon
rWrite32(0x104,0x200); // initialize bias
for (int i=0; i<16; i++) {
@ -466,6 +481,10 @@ int DivPlatformNDS::getOutputCount() {
return 2;
}
bool DivPlatformNDS::hasAcquireDirect() {
return true;
}
void DivPlatformNDS::notifyInsChange(int ins) {
for (int i=0; i<16; i++) {
if (chan[i].ins==ins) {
@ -570,7 +589,7 @@ void DivPlatformNDS::renderSamples(int sysID) {
void DivPlatformNDS::setFlags(const DivConfig& flags) {
isDSi=flags.getBool("chipType",0);
chipClock=33513982;
rate=chipClock/2/coreQuality;
rate=chipClock/2;
for (int i=0; i<16; i++) {
oscBuf[i]->setRate(rate);
}