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channel mute/solo!

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This commit is contained in:
tildearrow 2021-12-18 03:25:42 -05:00
parent c4c019e593
commit b3b66ecbdb
27 changed files with 416 additions and 48 deletions
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17
src/engine/platform/dummy.cpp
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@ -7,17 +7,21 @@ void DivPlatformDummy::acquire(short* bufL, short* bufR, size_t start, size_t le
bufL[i]=0;
for (unsigned char j=0; j<chans; j++) {
if (chan[j].active) {
bufL[i]+=((chan[j].pos>=0x8000)?chan[j].vol:-chan[j].vol)*chan[j].amp;
if (!isMuted[j]) bufL[i]+=(((signed short)chan[j].pos)*chan[j].amp*chan[j].vol)>>13;
chan[j].pos+=chan[j].freq;
}
}
}
}
void DivPlatformDummy::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
}
void DivPlatformDummy::tick() {
for (unsigned char i=0; i<chans; i++) {
chan[i].amp--;
if (chan[i].amp<0) chan[i].amp=0;
chan[i].amp-=3;
if (chan[i].amp<16) chan[i].amp=16;
if (chan[i].freqChanged) {
chan[i].freqChanged=false;
@ -29,7 +33,7 @@ void DivPlatformDummy::tick() {
int DivPlatformDummy::dispatch(DivCommand c) {
switch (c.cmd) {
case DIV_CMD_NOTE_ON:
chan[c.chan].baseFreq=16.4f*pow(2.0f,((float)c.value/12.0f));
chan[c.chan].baseFreq=65.6f*pow(2.0f,((float)c.value/12.0f));
chan[c.chan].freqChanged=true;
chan[c.chan].active=true;
chan[c.chan].amp=64;
@ -49,7 +53,7 @@ int DivPlatformDummy::dispatch(DivCommand c) {
chan[c.chan].freqChanged=true;
break;
case DIV_CMD_LEGATO:
chan[c.chan].baseFreq=16.4f*pow(2.0f,((float)c.value/12.0f));
chan[c.chan].baseFreq=65.6f*pow(2.0f,((float)c.value/12.0f));
chan[c.chan].freqChanged=true;
break;
case DIV_CMD_GET_VOLMAX:
@ -70,6 +74,9 @@ void DivPlatformDummy::reset() {
int DivPlatformDummy::init(DivEngine* p, int channels, int sugRate, bool pal) {
parent=p;
for (int i=0; i<17; i++) {
isMuted[i]=false;
}
rate=65536;
chans=channels;
reset();