static void get_dup_producer_names(map<BString, int32>& dups)
{
int32 id = 0;
BMidiProducer* prod;
while ((prod=BMidiRoster::NextProducer(&id)) != NULL) {
if (!prod->IsLocal()) {
BString name(prod->Name());
dup_name_map::iterator it = dups.find(name);
if (it != dups.end()) (*it).second = (*it).second + 1;
else {
dups.insert(dup_name_map::value_type(name, 1));
}
}
}
dup_name_map::iterator i;
for (i = dups.begin(); i != dups.end(); i++) {
if (i->second < 2) {
dups.erase(i);
/* THIS IS ABSOLUTELY NECESSARY -- if you try to iterate
* over begin() when the map is empty(), it just hangs.
*/
if (dups.empty()) break;
i = dups.begin();
}
}
for (i = dups.begin(); i != dups.end(); i++) {
i->second = 1;
}
}
AmFilterRoster* AmFilterRoster::Default()
{
if (atomic_or(&gFilterRosterCreated, 1) == 0) {
gFilterRoster = new AmFilterRoster("Default Filter Roster");
gFilterRoster->AddSearchPath("%A/add-ons/Filters");
gFilterRoster->AddDirectory(B_SYSTEM_ADDONS_DIRECTORY,"AngryRedPlanet/Sequitur/Filters");
gFilterRoster->AddDirectory(B_USER_ADDONS_DIRECTORY,"AngryRedPlanet/Sequitur/Filters");
// Here are our standard filter addons...
AmFilterAddOn *addon;
// Forcibly add in all existing consumers, so that when we
// return we have everything as it currently exists. This is
// to take care of situations where, say, the file loader is the
// first thing to open the roster and immediately starts trying
// to instantiate consumer filters.
BMidiConsumer* cons;
/* Hack -- keep track of the producer / consumer names that are
* installed, and if a name gets installed more than one, increment
* a counter for it. This is so users can run multiple instances of
* a softsynth and access each independently.
*/
dup_name_map dups;
get_dup_consumer_names(dups);
int32 id = 0;
while ((cons=BMidiRoster::NextConsumer(&id)) != NULL) {
if (!cons->IsLocal()) {
BString msg("Installing MIDI consumer ");
msg += cons->Name();
msg += "...";
am_report_startup_status(msg.String());
int32 index = 0;
dup_name_map::iterator i = dups.find(BString(cons->Name()));
if (i != dups.end()) {
index = i->second;
i->second = i->second + 1;
}
addon = new AmConsumerFilterAddOn(NULL, cons, index);
if (addon) {
printf("Installing consumer %s (#%ld)\n", cons->Name(), cons->ID());
gFilterRoster->InstallAddOn(new AmFilterAddOnHandle(addon));
#if 0
BMessage props;
if( cons->GetProperties( &props ) == B_OK ) {
printf("****** CONSUMER HAS PROPERTIES:\n");
props.PrintToStream();
printf("****** END PROPERTIES\n");
}
#endif
}
}
}
dups.erase(dups.begin(), dups.end());
get_dup_producer_names(dups);
id = 0;
BMidiProducer* prod;
while ((prod=BMidiRoster::NextProducer(&id)) != NULL) {
if (!prod->IsLocal()) {
BString msg("Installing MIDI producer ");
msg += prod->Name();
msg += "...";
am_report_startup_status(msg.String());
int32 index = 0;
dup_name_map::iterator i = dups.find(BString(prod->Name()));
if (i != dups.end()) {
index = i->second;
i->second = i->second + 1;
}
addon = new AmProducerFilterAddOn(NULL, prod, index);
if (addon) {
printf("Installing producer%s (#%ld)\n", prod->Name(), prod->ID());
gFilterRoster->InstallAddOn(new AmFilterAddOnHandle(addon));
}
}
}
/* Add in a filter for the BeOS MIDI synth if there's any
* audio output.
*/
status_t err;
am_report_startup_status("Installing MIDI Synth consumer...");
BMediaRoster* roster = BMediaRoster::Roster( &err );
if( err == B_OK && roster ) {
media_node node;
err = roster->GetAudioOutput( &node );
if( err == B_OK ) {
// Add in a filter for the BeOS MIDI synth.
if ((addon = new AmConsumerFilterAddOn(NULL)) != NULL)
gFilterRoster->InstallAddOn(new AmFilterAddOnHandle(addon));
// node.ReleaseNode();
}
}
/* Add the generic input/output filters, for tool and multi filter pipelines.
*/
if ((addon = new AmNullInputAddOn(NULL)) != NULL)
gFilterRoster->InstallAddOn(new AmFilterAddOnHandle(addon));
if ((addon = new AmNullOutputAddOn(NULL)) != NULL)
gFilterRoster->InstallAddOn(new AmFilterAddOnHandle(addon));
// Go!
gFilterRoster->Run();
} else {
while (!gFilterRoster) sleep(20000);
}
return gFilterRoster;
}
virtual void MessageReceived(BMessage *message)
{
if (message->what == B_MIDI_EVENT) {
int32 op, id;
const char* type;
if (message->FindInt32("be:op", &op) == B_OK &&
message->FindInt32("be:id", &id) == B_OK &&
message->FindString("be:type", &type) == B_OK) {
BAutolock _l(mRoster.Locker());
// First look for a filter with this ID.
AmFilterAddOnHandle* handle = NULL;
AmConsumerFilterAddOn* caddon = NULL;
AmProducerFilterAddOn* paddon = NULL;
for (int32 i=0; i<mRoster.CountAddOns(); i++) {
handle = dynamic_cast<AmFilterAddOnHandle*>(mRoster.AddOnAt(i));
if (!handle) continue;
caddon = dynamic_cast<AmConsumerFilterAddOn*>(handle->AddOn());
paddon = dynamic_cast<AmProducerFilterAddOn*>(handle->AddOn());
if (caddon && caddon->ConsumerID() == id) {
break;
}
if (paddon && paddon->ProducerID() == id) {
break;
}
}
if (op == B_MIDI_REGISTERED) {
// Only add if the newly registered consumer
// doesn't already exist in the roster.
if (strcmp(type, "consumer") == 0 && (!caddon
|| caddon->ConsumerID() != id) ) {
BMidiConsumer* cons = BMidiRoster::FindConsumer(id);
if (!cons) return;
if (cons->IsLocal()) return;
caddon = new AmConsumerFilterAddOn(NULL, cons);
if (caddon) {
printf("Installing consumer %s (#%ld)\n",
cons->Name(), cons->ID());
mRoster.InstallAddOn(new AmFilterAddOnHandle(caddon));
}
} else if (strcmp(type, "producer") == 0 && (!paddon
|| paddon->ProducerID() != id) ) {
BMidiProducer* prod = BMidiRoster::FindProducer(id);
if (!prod) return;
if (prod->IsLocal()) return;
paddon = new AmProducerFilterAddOn( NULL, prod );
if (paddon) {
printf("Installing producer %s (#%ld)\n",
prod->Name(), prod->ID());
mRoster.InstallAddOn(new AmFilterAddOnHandle(paddon));
}
}
} else if (op == B_MIDI_UNREGISTERED) {
if (handle && caddon || paddon) {
printf("Removing %s (#%ld)\n",
caddon ? caddon->Name().String() : paddon->Name().String(),
caddon ? caddon->ConsumerID() : paddon->ProducerID());
mRoster.RemoveAddOn(handle);
}
}
}
return;
}
BHandler::MessageReceived(message);
}