void MidiEnumeratorPrivate::rescan()
{
qDebug() << Q_FUNC_INFO;
if (m_alsa == NULL)
return;
bool changed = false;
QList <MidiOutputDevice*> destroyOutputs(m_outputDevices);
QList <MidiInputDevice*> destroyInputs(m_inputDevices);
snd_seq_client_info_t* clientInfo = NULL;
snd_seq_client_info_alloca(&clientInfo);
snd_seq_port_info_t* portInfo = NULL;
snd_seq_port_info_alloca(&portInfo);
snd_seq_client_info_set_client(clientInfo, 0);
while (snd_seq_query_next_client(m_alsa, clientInfo) == 0)
{
/* Get the client ID */
int client = snd_seq_client_info_get_client(clientInfo);
/* Ignore our own client */
if (m_address->client == client)
continue;
/* Go thru all available ports in the client */
snd_seq_port_info_set_client(portInfo, client);
snd_seq_port_info_set_port(portInfo, -1);
while (snd_seq_query_next_port(m_alsa, portInfo) == 0)
{
const snd_seq_addr_t* address = snd_seq_port_info_get_addr(portInfo);
if (address == NULL)
continue;
uint caps = snd_seq_port_info_get_capability(portInfo);
if (caps & SND_SEQ_PORT_CAP_READ)
{
// Don't expose own ports
QString name = AlsaMidiUtil::extractName(m_alsa, address);
if (name.contains("__QLC__") == true)
continue;
QVariant uid = AlsaMidiUtil::addressToVariant(address);
MidiInputDevice* dev = inputDevice(uid);
if (dev == NULL)
{
AlsaMidiInputDevice* dev = new AlsaMidiInputDevice(
uid, name, address, m_alsa, m_inputThread, this);
m_inputDevices << dev;
changed = true;
}
else
{
destroyInputs.removeAll(dev);
}
}
if (caps & SND_SEQ_PORT_CAP_WRITE)
{
// Don't expose own ports
QString name = AlsaMidiUtil::extractName(m_alsa, address);
if (name.contains("__QLC__") == true)
continue;
QVariant uid = AlsaMidiUtil::addressToVariant(address);
MidiOutputDevice* dev = outputDevice(uid);
if (dev == NULL)
{
AlsaMidiOutputDevice* dev = new AlsaMidiOutputDevice(
uid, name, address, m_alsa, m_address, this);
m_outputDevices << dev;
changed = true;
}
else
{
destroyOutputs.removeAll(dev);
}
}
}
}
foreach (MidiOutputDevice* dev, destroyOutputs)
{
m_outputDevices.removeAll(dev);
delete dev;
changed = true;
}
void MidiEnumeratorPrivate::rescan()
{
qDebug() << Q_FUNC_INFO;
bool changed = false;
QList <MidiOutputDevice*> destroyOutputs(m_outputDevices);
QList <MidiInputDevice*> destroyInputs(m_inputDevices);
/* Find out which devices are still present */
ItemCount numDevices = MIDIGetNumberOfDevices();
for (ItemCount devIndex = 0; devIndex < numDevices; devIndex++)
{
MIDIDeviceRef dev = MIDIGetDevice(devIndex);
ItemCount numEntities = MIDIDeviceGetNumberOfEntities(dev);
for (ItemCount entIndex = 0; entIndex < numEntities; entIndex++)
{
MIDIEntityRef entity = MIDIDeviceGetEntity(dev, entIndex);
/* Get the entity's UID */
QVariant uid = extractUID(entity);
if (uid.isValid() == false)
continue;
QString name = extractName(entity);
qDebug() << Q_FUNC_INFO << "Found device:" << name << "UID:" << uid.toString();
ItemCount destCount = MIDIEntityGetNumberOfDestinations(entity);
if (destCount > 0)
{
MidiOutputDevice* dev = outputDevice(uid);
if (dev == NULL)
{
CoreMidiOutputDevice* dev = new CoreMidiOutputDevice(
uid, name, entity, m_client, this);
m_outputDevices << dev;
changed = true;
}
else
{
destroyOutputs.removeAll(dev);
}
}
ItemCount srcCount = MIDIEntityGetNumberOfSources(entity);
if (srcCount > 0)
{
MidiInputDevice* dev = inputDevice(uid);
if (dev == NULL)
{
CoreMidiInputDevice* dev = new CoreMidiInputDevice(
uid, name, entity, m_client, this);
m_inputDevices << dev;
changed = true;
}
else
{
destroyInputs.removeAll(dev);
}
}
}
}
foreach (MidiOutputDevice* dev, destroyOutputs)
{
m_outputDevices.removeAll(dev);
delete dev;
changed = true;
}
