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implement patchbay-based output

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tildearrow 2023-01-06 18:44:20 -05:00
parent 6273275b47
commit 1154a2bda6
5 changed files with 79 additions and 27 deletions
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65
src/engine/playback.cpp
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@ -1720,30 +1720,53 @@ void DivEngine::nextBuf(float** in, float** out, int inChans, int outChans, unsi
disCont[i].fillBuf(disCont[i].runtotal,disCont[i].lastAvail,size-disCont[i].lastAvail);
}
// TODO: patchbay
for (int i=0; i<song.systemLen; i++) {
float volL=song.systemVol[i]*MIN(1.0f,1.0f-song.systemPan[i])*song.masterVol;
float volR=song.systemVol[i]*MIN(1.0f,1.0f+song.systemPan[i])*song.masterVol;
volL*=disCont[i].dispatch->getPostAmp();
volR*=disCont[i].dispatch->getPostAmp();
if (disCont[i].dispatch->getOutputCount()>1) {
for (size_t j=0; j<size; j++) {
int howManyToFill=MIN(outChans,disCont[i].dispatch->getOutputCount());
for (int k=0; k<howManyToFill; k++) {
// volL if even, volR if odd. if howManyToFill is odd and it is the last channel then ignore
const float whichVol=((howManyToFill&1) && (k==howManyToFill-1))?1.0:((k&1)?volR:volL);
out[k][j]+=((float)disCont[i].bbOut[k][j]/32768.0)*whichVol;
}
}
} else {
for (size_t j=0; j<size; j++) {
for (int k=0; k<outChans; k++) {
// volL if even, volR if odd. if outChans is odd and it is the last channel then ignore
const float whichVol=((outChans&1) && (k==outChans-1))?1.0:((k&1)?volR:volL);
out[k][j]+=((float)disCont[i].bbOut[0][j]/32768.0)*whichVol;
// resolve patchbay
for (unsigned int i: song.patchbay) {
const unsigned short srcPort=i>>16;
const unsigned short destPort=i&0xffff;
const unsigned short srcPortSet=srcPort>>4;
const unsigned short destPortSet=destPort>>4;
const unsigned char srcSubPort=srcPort&15;
const unsigned char destSubPort=destPort&15;
// null portset
if (destPortSet==0xfff) continue;
// system outputs
if (destPortSet==0x000) {
if (destSubPort>=outChans) continue;
// chip outputs
if (srcPortSet<song.systemLen) {
if (srcSubPort<disCont[srcPortSet].dispatch->getOutputCount()) {
float vol=song.systemVol[srcPortSet]*disCont[srcPortSet].dispatch->getPostAmp()*song.masterVol;
switch (destSubPort&3) {
case 0:
vol*=MIN(1.0f,1.0f-song.systemPan[srcPortSet])*MIN(1.0f,1.0f-song.systemPanFR[srcPortSet]);
break;
case 1:
vol*=MIN(1.0f,1.0f+song.systemPan[srcPortSet])*MIN(1.0f,1.0f-song.systemPanFR[srcPortSet]);
break;
case 2:
vol*=MIN(1.0f,1.0f-song.systemPan[srcPortSet])*MIN(1.0f,1.0f+song.systemPanFR[srcPortSet]);
break;
case 3:
vol*=MIN(1.0f,1.0f+song.systemPan[srcPortSet])*MIN(1.0f,1.0f+song.systemPanFR[srcPortSet]);
break;
}
for (size_t j=0; j<size; j++) {
out[destSubPort][j]+=((float)disCont[srcPortSet].bbOut[srcSubPort][j]/32768.0)*vol;
}
}
}
// nothing/invalid
}
// nothing/invalid
}
if (metronome) for (size_t i=0; i<size; i++) {