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add some basic playback code!

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here it begins
This commit is contained in:
tildearrow 2021-05-12 05:22:01 -05:00
parent 4a08adf224
commit a68f8d0dec
6 changed files with 103 additions and 9 deletions
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46
src/engine/playback.cpp
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@ -30,6 +30,14 @@ void DivEngine::nextRow() {
if (++curRow>=song.patLen) {
nextOrder();
}
if (changeOrd>=0) {
curRow=changePos;
curOrder=changeOrd;
if (curOrder>=song.ordersLen) {
curOrder=0;
}
changeOrd=-1;
}
strcpy(pb1,"");
strcpy(pb3,"");
for (int i=0; i<chans; i++) {
@ -68,6 +76,39 @@ void DivEngine::nextRow() {
}
}
printf("| %.2x:%s | \x1b[1;33m%3d%s\x1b[m\n",curOrder,pb1,curRow,pb3);
for (int i=0; i<chans; i++) {
DivPattern* pat=song.pat[i]->data[curOrder];
// note
if (pat->data[curRow][0]==100) {
dispatch->dispatch(DivCommand(DIV_CMD_NOTE_OFF,i));
} else if (pat->data[curRow][1]!=0) {
dispatch->dispatch(DivCommand(DIV_CMD_NOTE_ON,i,pat->data[curRow][0]+pat->data[curRow][1]*12));
}
// effects
for (int j=0; j<song.pat[i]->effectRows; j++) {
unsigned char effect=pat->data[curRow][4+(j<<1)];
unsigned char effectVal=pat->data[curRow][5+(j<<1)];
switch (effect) {
case 0x09: // speed 1
song.speed1=effectVal;
break;
case 0x0f: // speed 2
song.speed2=effectVal;
break;
case 0x0b: // change order
changeOrd=effectVal;
changePos=0;
break;
case 0x0d: // next order
changeOrd=curOrder+1;
changePos=effectVal;
break;
}
}
}
}
void DivEngine::nextTick() {
@ -81,14 +122,15 @@ void DivEngine::nextTick() {
}
}
if (--ticks<=0) {
nextRow();
if (speedAB) {
ticks=song.speed2*(song.timeBase+1);
} else {
ticks=song.speed1*(song.timeBase+1);
}
speedAB=!speedAB;
nextRow();
}
dispatch->tick();
}
void DivEngine::nextBuf(float** in, float** out, int inChans, int outChans, unsigned int size) {
@ -115,4 +157,4 @@ void DivEngine::nextBuf(float** in, float** out, int inChans, int outChans, unsi
out[0][i]=(float)bbOut[0][i]/32768.0;
out[1][i]=(float)bbOut[1][i]/32768.0;
}
}
}