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WaveSynth: implement more effects

This commit is contained in:
tildearrow 2022-04-08 16:03:54 -05:00
parent 8e364944dc
commit 0fcc73b6c6
1 changed files with 49 additions and 1 deletions
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50
src/engine/waveSynth.cpp
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@ -25,6 +25,54 @@ bool DivWaveSynth::tick() {
}
updated=true;
break;
case DIV_WS_ADD:
for (int i=0; i<=state.speed; i++) {
output[pos]+=MIN(height,state.param1);
if (output[pos]>=height) output[pos]-=height;
if (++pos>=width) pos=0;
}
updated=true;
break;
case DIV_WS_SUBTRACT:
for (int i=0; i<=state.speed; i++) {
output[pos]+=MIN(height,state.param1);
if (output[pos]<0) output[pos]+=height;
if (++pos>=width) pos=0;
}
updated=true;
break;
case DIV_WS_AVERAGE:
for (int i=0; i<=state.speed; i++) {
int pos1=(pos+1>=width)?0:(pos+1);
output[pos]=(output[pos]*state.param1+output[pos1]*(256-state.param1))>>8;
if (output[pos]<0) output[pos]=0;
if (output[pos]>height) output[pos]=height;
if (++pos>=width) pos=0;
}
updated=true;
break;
case DIV_WS_PHASE:
for (int i=0; i<=state.speed; i++) {
output[pos]=wave1[(pos+stage)%width];
if (++pos>=width) {
pos=0;
if (++stage>=width) stage=0;
}
}
updated=true;
break;
case DIV_WS_WIPE:
break;
case DIV_WS_FADE:
break;
case DIV_WS_PING_PONG:
break;
case DIV_WS_OVERLAY:
break;
case DIV_WS_NEGATIVE_OVERLAY:
break;
case DIV_WS_PHASE_DUAL:
break;
}
divCounter=state.rateDivider;
}
@ -96,4 +144,4 @@ void DivWaveSynth::init(DivInstrument* which, int w, int h, bool insChanged) {
changeWave1(state.wave1);
changeWave2(state.wave2);
}
}
}