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implement more effects and bugfixes

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enough to play time trax intro near flawless
This commit is contained in:
tildearrow 2021-05-15 03:13:21 -05:00
parent eb692ca9a9
commit 9a97c38cc6
4 changed files with 141 additions and 14 deletions
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77
src/engine/playback.cpp
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@ -39,6 +39,58 @@ bool DivEngine::perSystemEffect(int ch, unsigned char effect, unsigned char effe
return true;
}
bool DivEngine::perSystemPostEffect(int ch, unsigned char effect, unsigned char effectVal) {
switch (song.system) {
case DIV_SYSTEM_GENESIS:
switch (effect) {
case 0x11: // FB
dispatch->dispatch(DivCommand(DIV_CMD_FM_FB,ch,effectVal&7));
break;
case 0x12: // TL op1
dispatch->dispatch(DivCommand(DIV_CMD_FM_TL,ch,0,effectVal&0x7f));
break;
case 0x13: // TL op2
dispatch->dispatch(DivCommand(DIV_CMD_FM_TL,ch,1,effectVal&0x7f));
break;
case 0x14: // TL op3
dispatch->dispatch(DivCommand(DIV_CMD_FM_TL,ch,2,effectVal&0x7f));
break;
case 0x15: // TL op4
dispatch->dispatch(DivCommand(DIV_CMD_FM_TL,ch,3,effectVal&0x7f));
break;
case 0x16: // MULT
if ((effectVal>>4)>0 && (effectVal>>4)<5) {
dispatch->dispatch(DivCommand(DIV_CMD_FM_MULT,ch,(effectVal>>4)-1,effectVal&15));
}
break;
case 0x18: // EXT
dispatch->dispatch(DivCommand(DIV_CMD_FM_EXTCH,ch,effectVal));
break;
case 0x19: // AR global
dispatch->dispatch(DivCommand(DIV_CMD_FM_AR,ch,-1,effectVal&31));
break;
case 0x1a: // AR op1
dispatch->dispatch(DivCommand(DIV_CMD_FM_AR,ch,0,effectVal&31));
break;
case 0x1b: // AR op2
dispatch->dispatch(DivCommand(DIV_CMD_FM_AR,ch,1,effectVal&31));
break;
case 0x1c: // AR op3
dispatch->dispatch(DivCommand(DIV_CMD_FM_AR,ch,2,effectVal&31));
break;
case 0x1d: // AR op4
dispatch->dispatch(DivCommand(DIV_CMD_FM_AR,ch,3,effectVal&31));
break;
default:
return false;
}
break;
default:
return false;
}
return true;
}
void DivEngine::nextRow() {
static char pb[4096];
static char pb1[4096];
@ -173,7 +225,7 @@ void DivEngine::nextRow() {
case 0x04: // vibrato
chan[i].vibratoDepth=effectVal&15;
chan[i].vibratoRate=effectVal>>4;
dispatch->dispatch(DivCommand(DIV_CMD_PITCH,i,(chan[i].vibratoDepth*vibTable[chan[i].vibratoPos])>>4));
dispatch->dispatch(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos])>>4)));
break;
case 0x0a: // volume ramp
if (effectVal!=0) {
@ -197,16 +249,33 @@ void DivEngine::nextRow() {
break;
case 0xe5: // pitch
chan[i].pitch=effectVal-0x80;
dispatch->dispatch(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos])>>2)));
break;
case 0xea: // legato mode
chan[i].legato=effectVal;
break;
}
}
if (chan[i].doNote) {
chan[i].vibratoPos=0;
dispatch->dispatch(DivCommand(DIV_CMD_PITCH,i,(chan[i].vibratoDepth*vibTable[chan[i].vibratoPos])>>2));
dispatch->dispatch(DivCommand(DIV_CMD_NOTE_ON,i,chan[i].note));
dispatch->dispatch(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos])>>4)));
if (chan[i].legato) {
dispatch->dispatch(DivCommand(DIV_CMD_LEGATO,i,chan[i].note));
} else {
dispatch->dispatch(DivCommand(DIV_CMD_NOTE_ON,i,chan[i].note));
}
chan[i].doNote=false;
}
// post effects
for (int j=0; j<song.pat[i]->effectRows; j++) {
short effect=pat->data[curRow][4+(j<<1)];
short effectVal=pat->data[curRow][5+(j<<1)];
if (effectVal==-1) effectVal=0;
perSystemPostEffect(i,effect,effectVal);
}
}
}
@ -240,7 +309,7 @@ void DivEngine::nextTick() {
if (chan[i].vibratoDepth>0) {
chan[i].vibratoPos+=chan[i].vibratoRate;
if (chan[i].vibratoPos>=60) chan[i].vibratoPos-=60;
dispatch->dispatch(DivCommand(DIV_CMD_PITCH,i,(chan[i].vibratoDepth*vibTable[chan[i].vibratoPos])>>4));
dispatch->dispatch(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos])>>4)));
}
if (chan[i].portaSpeed>0) {
if (dispatch->dispatch(DivCommand(DIV_CMD_NOTE_PORTA,i,chan[i].portaSpeed,chan[i].portaNote))==2) {