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C219: finish C219 sample format

This commit is contained in:
tildearrow 2023-08-29 03:19:26 -05:00
parent da7ad75afd
commit e6c52e34d1
2 changed files with 14 additions and 10 deletions
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2
src/engine/platform/c140.cpp
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@ -209,7 +209,7 @@ void DivPlatformC140::tick(bool sysTick) {
if (chan[i].freq<0) chan[i].freq=0;
if (chan[i].freq>65535) chan[i].freq=65535;
if (is219) {
ctrl|=(chan[i].active?0x80:0)|((s->isLoopable())?0x10:0)|((s->depth==DIV_SAMPLE_DEPTH_MULAW)?1:0)|(chan[i].invert?0x40:0)|(chan[i].surround?8:0)|(chan[i].noise?4:0);
ctrl|=(chan[i].active?0x80:0)|((s->isLoopable())?0x10:0)|((s->depth==DIV_SAMPLE_DEPTH_C219)?1:0)|(chan[i].invert?0x40:0)|(chan[i].surround?8:0)|(chan[i].noise?4:0);
} else {
ctrl|=(chan[i].active?0x80:0)|((s->isLoopable())?0x10:0)|((s->depth==DIV_SAMPLE_DEPTH_MULAW)?0x08:0);
}

22
src/engine/sample.cpp
View File

@ -1328,16 +1328,20 @@ void DivSample::render(unsigned int formatMask) {
for (unsigned int i=0; i<samples; i++) {
short s=data16[i];
unsigned char x=0;
if (s>0) {
if (s>17152) { // 100+
x=((s-17152)>>9)+100;
} else {
int b=bsr(s)&15;
x=(s>>c219ShiftToVal[b])+c219HighBitPos[b];
}
} else if (s<0) {
bool negate=s&0x8000;
if (negate) {
s^=0xffff;
}
dataC219[i]=x;
if (s==0) {
x=0;
} else if (s>17152) { // 100+
x=((s-17152)>>9)+100;
} else {
int b=bsr(s)-1;
x=((s-(c219Table[c219HighBitPos[b]]))>>c219ShiftToVal[b])+c219HighBitPos[b];
}
if (x>127) x=127;
dataC219[i]=x|(negate?0x80:0);
}
}
}