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add ability to change system

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This commit is contained in:
tildearrow 2021-12-17 22:14:41 -05:00
parent 289dd3e565
commit 8c57eb9696
4 changed files with 57 additions and 5 deletions
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27
src/engine/engine.cpp
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@ -176,6 +176,10 @@ bool DivEngine::isFMSystem(DivSystem sys) {
sys==DIV_SYSTEM_YMU759);
}
bool DivEngine::isSTDSystem(DivSystem sys) {
return (sys!=DIV_SYSTEM_ARCADE && sys!=DIV_SYSTEM_YMU759);
}
const char* chanNames[11][17]={
{"Channel 1", "Channel 2", "Channel 3", "Channel 4", "Channel 5", "Channel 6", "Channel 7", "Channel 8", "Channel 9", "Channel 10", "Channel 11", "Channel 12", "Channel 13", "Channel 14", "Channel 15", "Channel 16", "PCM"}, // YMU759
{"FM 1", "FM 2", "FM 3", "FM 4", "FM 5", "FM 6", "Square 1", "Square 2", "Square 3", "Noise"}, // Genesis
@ -1176,6 +1180,28 @@ void DivEngine::renderSamples() {
}
}
void DivEngine::changeSystem(DivSystem which) {
quitDispatch();
isBusy.lock();
song.system=which;
chans=getChannelCount(song.system);
// instrument safety check
for (DivInstrument* i: song.ins) {
if (!isFMSystem(song.system) && i->mode) {
i->mode=false;
}
if (!isSTDSystem(song.system) && !i->mode) {
i->mode=true;
}
}
isBusy.unlock();
initDispatch();
isBusy.lock();
renderSamples();
reset();
isBusy.unlock();
}
DivInstrument* DivEngine::getIns(int index) {
if (index<0 || index>=song.insLen) return &song.nullIns;
return song.ins[index];
@ -1244,6 +1270,7 @@ int DivEngine::addInstrument() {
DivInstrument* ins=new DivInstrument;
int insCount=(int)song.ins.size();
ins->name=fmt::sprintf("Instrument %d",insCount);
ins->mode=isFMSystem(song.system);
song.ins.push_back(ins);
song.insLen=insCount+1;
isBusy.unlock();