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Mute on pan registers instead

This commit is contained in:
Natt Akuma 2022-03-09 00:58:21 +07:00
parent 43cfb09acf
commit eb3a73c38b
2 changed files with 38 additions and 27 deletions
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57
src/engine/platform/vera.cpp
View File

@ -93,19 +93,27 @@ void DivPlatformVERA::acquire(short* bufL, short* bufR, size_t start, size_t len
if (chan[16].accum>=128) {
DivSample* s=parent->getSample(chan[16].pcm.sample);
if (s->samples>0) {
// TODO stereo samples once DivSample has a support for it
switch (s->depth) {
case 8:
chan[16].pcm.out_l=chan[16].pcm.pan&1?(s->data8[chan[16].pcm.pos]*256):0;
chan[16].pcm.out_r=chan[16].pcm.pan&2?(s->data8[chan[16].pcm.pos]*256):0;
regPool[64]|=0x20; // for register viewer purposes
break;
case 16:
chan[16].pcm.out_l=chan[16].pcm.pan&1?(s->data16[chan[16].pcm.pos]):0;
chan[16].pcm.out_r=chan[16].pcm.pan&2?(s->data16[chan[16].pcm.pos]):0;
regPool[64]&=~0x20;
break;
int tmp_l=0;
int tmp_r=0;
if (!isMuted[16]) {
// TODO stereo samples once DivSample has a support for it
switch (s->depth) {
case 8:
tmp_l=s->data8[chan[16].pcm.pos]*256;
tmp_r=tmp_l;
regPool[64]|=0x20; // for register viewer purposes
break;
case 16:
tmp_l=s->data16[chan[16].pcm.pos];
tmp_r=tmp_l;
regPool[64]&=~0x20;
break;
}
if (!(chan[16].pan&1)) tmp_l=0;
if (!(chan[16].pan&2)) tmp_r=0;
}
chan[16].pcm.out_l=tmp_l;
chan[16].pcm.out_r=tmp_r;
} else {
chan[16].pcm.sample=-1;
}
@ -136,9 +144,11 @@ void DivPlatformVERA::reset() {
memset(regPool,0,66);
for (int i=0; i<16; i++) {
chan[i].vol=63;
rWriteHi(i,2,3); // default pan
chan[i].pan=3;
rWriteHi(i,2,isMuted[i]?0:3);
}
chan[16].vol=15;
chan[16].pan=3;
noiseState=1;
noiseOut=0;
}
@ -165,7 +175,7 @@ void DivPlatformVERA::tick() {
chan[i].std.next();
if (chan[i].std.hadVol) {
chan[i].outVol=MAX(chan[i].vol+chan[i].std.vol-63,0);
rWriteLo(i,2,isMuted[i]?0:(chan[i].outVol&63));
rWriteLo(i,2,chan[i].outVol);
}
if (chan[i].std.hadArp) {
if (!chan[i].inPorta) {
@ -200,7 +210,7 @@ void DivPlatformVERA::tick() {
chan[16].std.next();
if (chan[16].std.hadVol) {
chan[16].outVol=MAX(chan[16].vol+MIN(chan[16].std.vol/4,15)-15,0);
rWriteFIFOVol(isMuted[16]?0:(chan[16].outVol&15));
rWriteFIFOVol(chan[16].outVol&15);
}
if (chan[16].std.hadArp) {
if (!chan[16].inPorta) {
@ -229,16 +239,15 @@ int DivPlatformVERA::dispatch(DivCommand c) {
int tmp;
switch (c.cmd) {
case DIV_CMD_NOTE_ON:
tmp = isMuted[c.chan]?0:chan[c.chan].vol;
if(c.chan<16) {
rWriteLo(c.chan,2,tmp)
rWriteLo(c.chan,2,chan[c.chan].vol)
} else {
chan[c.chan].pcm.sample=parent->getIns(chan[16].ins)->amiga.initSample;
if (chan[c.chan].pcm.sample<0 || chan[c.chan].pcm.sample>=parent->song.sampleLen) {
chan[c.chan].pcm.sample=-1;
}
chan[16].pcm.pos=0;
rWriteFIFOVol(tmp);
rWriteFIFOVol(chan[c.chan].vol);
}
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=calcNoteFreq(c.chan,c.value);
@ -270,11 +279,11 @@ int DivPlatformVERA::dispatch(DivCommand c) {
if (c.chan<16) {
tmp=c.value&0x3f;
chan[c.chan].vol=tmp;
rWriteLo(c.chan,2,(isMuted[c.chan]?0:tmp));
rWriteLo(c.chan,2,tmp);
} else {
tmp=c.value&0x0f;
chan[c.chan].vol=tmp;
rWriteFIFOVol(isMuted[c.chan]?0:tmp);
rWriteFIFOVol(tmp);
}
break;
case DIV_CMD_GET_VOLUME:
@ -328,10 +337,9 @@ int DivPlatformVERA::dispatch(DivCommand c) {
tmp=0;
tmp|=(c.value&0x10)?1:0;
tmp|=(c.value&0x01)?2:0;
chan[c.chan].pan=tmp&3;
if (c.chan<16) {
rWriteHi(c.chan,2,tmp);
} else {
chan[c.chan].pcm.pan = tmp&3;
rWriteHi(c.chan,2,isMuted[c.chan]?0:chan[c.chan].pan);
}
break;
}
@ -365,6 +373,9 @@ int DivPlatformVERA::getRegisterPoolSize() {
void DivPlatformVERA::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
if (ch<16) {
rWriteHi(ch,2,mute?0:chan[ch].pan);
}
}
bool DivPlatformVERA::isStereo() {

8
src/engine/platform/vera.h
View File

@ -27,7 +27,7 @@ class DivPlatformVERA: public DivDispatch {
protected:
struct Channel {
int freq, baseFreq, pitch, note;
unsigned char ins;
unsigned char ins, pan;
bool active, freqChanged, inPorta;
int vol, outVol;
unsigned accum;
@ -39,10 +39,10 @@ class DivPlatformVERA: public DivDispatch {
int out_l, out_r;
unsigned pos;
unsigned len;
unsigned char freq, pan;
PCMChannel(): sample(-1), out_l(0), out_r(0), pos(0), len(0), freq(0), pan(3) {}
unsigned char freq;
PCMChannel(): sample(-1), out_l(0), out_r(0), pos(0), len(0), freq(0) {}
} pcm;
Channel(): freq(0), baseFreq(0), pitch(0), note(0), ins(-1), active(false), freqChanged(false), inPorta(false), vol(0), outVol(0), accum(0), noiseval(0) {}
Channel(): freq(0), baseFreq(0), pitch(0), note(0), ins(-1), pan(0), active(false), freqChanged(false), inPorta(false), vol(0), outVol(0), accum(0), noiseval(0) {}
};
Channel chan[17];
bool isMuted[17];