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Add envelope enable/disable and high nibble sample offset for IT

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Fine print:
- Enabling and disabling panning envelopes take up two effect columns instead of
  one due to the macro being split into left and right sides.
This commit is contained in:
KungFuFurby 2025-09-09 21:56:34 -04:00 committed by tildearrow
parent 0660e25f06
commit 6252843ade
1 changed files with 36 additions and 0 deletions
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36
src/engine/fileOps/it.cpp
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@ -1536,10 +1536,46 @@ bool DivEngine::loadIT(unsigned char* file, size_t len) {
break; break;
} }
break; break;
case 0x7:
switch (effectVal[chan]&15) {
case 0x7: // volume envelope off
p->data[readRow][effectCol[chan]++]=0xf5;
p->data[readRow][effectCol[chan]++]=0x00;
break;
case 0x8: // volume envelope on
p->data[readRow][effectCol[chan]++]=0xf6;
p->data[readRow][effectCol[chan]++]=0x00;
break;
case 0x9: // panning envelope off
p->data[readRow][effectCol[chan]++]=0xf5;
p->data[readRow][effectCol[chan]++]=0x0c;
p->data[readRow][effectCol[chan]++]=0xf5;
p->data[readRow][effectCol[chan]++]=0x0d;
break;
case 0xa: // panning envelope on
p->data[readRow][effectCol[chan]++]=0xf6;
p->data[readRow][effectCol[chan]++]=0x0c;
p->data[readRow][effectCol[chan]++]=0xf6;
p->data[readRow][effectCol[chan]++]=0x0d;
break;
case 0xb: // pitch envelope off
p->data[readRow][effectCol[chan]++]=0xf5;
p->data[readRow][effectCol[chan]++]=0x04;
break;
case 0xc: //pitch envelope on
p->data[readRow][effectCol[chan]++]=0xf6;
p->data[readRow][effectCol[chan]++]=0x04;
break;
}
break;
case 0x8: // panning case 0x8: // panning
p->data[readRow][effectCol[chan]++]=0x80; p->data[readRow][effectCol[chan]++]=0x80;
p->data[readRow][effectCol[chan]++]=(effectVal[chan]&15)<<4; p->data[readRow][effectCol[chan]++]=(effectVal[chan]&15)<<4;
break; break;
case 0xa: // offset (high nibble)
p->data[readRow][effectCol[chan]++]=0x92;
p->data[readRow][effectCol[chan]++]=effectVal[chan]&15;
break;
case 0xc: // note cut case 0xc: // note cut
p->data[readRow][effectCol[chan]++]=0xec; p->data[readRow][effectCol[chan]++]=0xec;
p->data[readRow][effectCol[chan]++]=effectVal[chan]&15; p->data[readRow][effectCol[chan]++]=effectVal[chan]&15;