bool CAMIDIEndpoints::FindEndpoint(EMode mode, EndpointInfo &info, UInt32 opts) {
EndpointList &srcList = (mode == kSources) ? mSources : mDestinations;
for (EndpointList::iterator it = srcList.begin(); it != srcList.end(); ++it) {
Endpoint *ept = *it;
if (ept->UniqueID() == info.mUniqueID) {
if (ept->GetEndpointInfo(mode, info))
return true;
break;
}
}
info.mSourceEndpoint = NULL;
info.mDestinationEndpoint = NULL;
return false;
}
bool CAMIDIEndpoints::Endpoint::GetEndpointInfo(EMode mode, EndpointInfo &info) {
Endpoint *ept = this, *ept2;
if (mode == kPairs) {
if ((ept2 = ept->PairMate()) == NULL)
return false;
info.mSourceEndpoint = ept2->IOEndpoint();
info.mDestinationEndpoint = ept->IOEndpoint();
}
else if (mode == kSources) {
info.mSourceEndpoint = ept->IOEndpoint();
info.mDestinationEndpoint = NULL;
}
else {
info.mSourceEndpoint = NULL;
info.mDestinationEndpoint = ept->IOEndpoint();
}
info.mUniqueID = ept->UniqueID();
if (ept->DriverOwned() && ept->Next() != NULL) {
// add one item for all connected items
CFMutableStringRef names = CFStringCreateMutable(NULL, 0);
bool first = true;
while (true) {
ept = ept->Next();
if (ept == NULL)
break;
if (!first) {
CFStringAppend(names, CFSTR(", "));
}
else first = false;
CFStringAppend(names, ept->Name());
}
info.mDisplayName = names;
}
else {
// a driver-owned endpoint with nothing connected externally,
// or an external endpoint
CFRetain(info.mDisplayName = ept->Name());
}
return true;
}
