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Implementing pattern effects, detune on FM preview, default instrument

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Kagamiin~ 2023-10-21 14:35:20 -03:00
parent 821b567b8c
commit a1b7e52467
7 changed files with 258 additions and 73 deletions
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22
src/gui/fmPreview.cpp
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@ -366,15 +366,31 @@ void FurnaceGUI::renderFMPreviewESFM(const DivInstrumentFM& params, const DivIns
const DivInstrumentFM::Operator& op=params.op[i];
const DivInstrumentESFM::Operator& opE=esfmParams.op[i];
unsigned short baseAddr=i*8;
unsigned char freqL, freqH;
if (opE.fixed) {
freqL=opE.dt;
freqH=opE.ct&0x1f;
} else {
// perform detune calculation
int offset=(opE.ct<<7)+opE.dt;
double fbase=(mult0?2048.0:1024.0)*pow(2.0,(float)offset/(128.0*12.0));
int bf=round(fbase);
int block=0;
while (bf>0x3ff) {
bf>>=1;
block++;
}
freqL=bf&0xff;
freqH=((block&7)<<2)|((bf>>8)&3);
}
ESFM_WRITE(baseAddr+0,(op.am<<7)|((op.vib&1)<<6)|((op.sus&1)<<5)|((op.ksr&1)<<4)|(op.mult&0x0f));
ESFM_WRITE(baseAddr+1,(op.ksl<<6)|(op.tl&0x3f));
ESFM_WRITE(baseAddr+2,(op.ar<<4)|(op.dr&0x0f));
ESFM_WRITE(baseAddr+3,(op.sl<<4)|(op.rr&0x0f));
// TODO: implement ct/dt detune... how will we do that?
ESFM_WRITE(baseAddr+4,0);
ESFM_WRITE(baseAddr+5,(opE.delay<<5)|(mult0?0x0a:0x06));
ESFM_WRITE(baseAddr+4,freqL);
ESFM_WRITE(baseAddr+5,(opE.delay<<5)|freqH);
ESFM_WRITE(baseAddr+6,(op.dam<<7)|((op.dvb&1)<<6)|((opE.right&1)<<5)|((opE.left&1)<<4)|((opE.modIn&7)<<1));
ESFM_WRITE(baseAddr+7,(opE.outLvl<<5)|((i==3?esfmParams.noise:0)<<3)|(op.ws&7));