//==============================================================================
static AlsaPort iterateMidiClient (const AlsaClient::Ptr& seq,
                                   snd_seq_client_info_t* clientInfo,
                                   const bool forInput,
                                   StringArray& deviceNamesFound,
                                   const int deviceIndexToOpen)
{
    AlsaPort port;

    snd_seq_t* seqHandle = seq->get();
    snd_seq_port_info_t* portInfo = nullptr;

    if (snd_seq_port_info_malloc (&portInfo) == 0)
    {
        int numPorts = snd_seq_client_info_get_num_ports (clientInfo);
        const int client = snd_seq_client_info_get_client (clientInfo);

        snd_seq_port_info_set_client (portInfo, client);
        snd_seq_port_info_set_port (portInfo, -1);

        while (--numPorts >= 0)
        {
            if (snd_seq_query_next_port (seqHandle, portInfo) == 0
                && (snd_seq_port_info_get_capability (portInfo) & (forInput ? SND_SEQ_PORT_CAP_READ
                                                                            : SND_SEQ_PORT_CAP_WRITE)) != 0)
            {
                deviceNamesFound.add (snd_seq_client_info_get_name (clientInfo));

                if (deviceNamesFound.size() == deviceIndexToOpen + 1)
                {
                    const int sourcePort   = snd_seq_port_info_get_port (portInfo);
                    const int sourceClient = snd_seq_client_info_get_client (clientInfo);

                    if (sourcePort != -1)
                    {
                        const String name (forInput ? JUCE_ALSA_MIDI_INPUT_NAME
                                                    : JUCE_ALSA_MIDI_OUTPUT_NAME);
                        seq->setName (name);
                        port.createPort (seq, name, forInput);
                        port.connectWith (sourceClient, sourcePort);
                    }
                }
            }
        }

        snd_seq_port_info_free (portInfo);
    }

    return port;
}
static int check_permission(snd_seq_port_info_t *pinfo, int perm)
{
	if (perm) {
		if (perm & LIST_INPUT) {
			if (perm_ok(pinfo, SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_SUBS_READ))
				goto __ok;
		}
		if (perm & LIST_OUTPUT) {
			if (perm_ok(pinfo, SND_SEQ_PORT_CAP_WRITE|SND_SEQ_PORT_CAP_SUBS_WRITE))
				goto __ok;
		}
		return 0;
	}
 __ok:
	if (snd_seq_port_info_get_capability(pinfo) & SND_SEQ_PORT_CAP_NO_EXPORT)
		return 0;
	return 1;
}
Example #3
0
QStringList qxgeditMidiDevice::deviceList ( bool bReadable ) const
{
	QStringList list;

	if (m_pAlsaSeq == NULL)
		return list;

	unsigned int uiPortFlags;
	if (bReadable)
		uiPortFlags = SND_SEQ_PORT_CAP_READ  | SND_SEQ_PORT_CAP_SUBS_READ;
	else
		uiPortFlags = SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE;

	snd_seq_client_info_t *pClientInfo;
	snd_seq_port_info_t   *pPortInfo;

	snd_seq_client_info_alloca(&pClientInfo);
	snd_seq_port_info_alloca(&pPortInfo);
	snd_seq_client_info_set_client(pClientInfo, -1);

	while (snd_seq_query_next_client(m_pAlsaSeq, pClientInfo) >= 0) {
		int iAlsaClient = snd_seq_client_info_get_client(pClientInfo);
		if (iAlsaClient > 0 && iAlsaClient != m_iAlsaClient) {
			snd_seq_port_info_set_client(pPortInfo, iAlsaClient);
			snd_seq_port_info_set_port(pPortInfo, -1);
			while (snd_seq_query_next_port(m_pAlsaSeq, pPortInfo) >= 0) {
				unsigned int uiPortCapability
					= snd_seq_port_info_get_capability(pPortInfo);
				if (((uiPortCapability & uiPortFlags) == uiPortFlags) &&
					((uiPortCapability & SND_SEQ_PORT_CAP_NO_EXPORT) == 0)) {
					int iAlsaPort = snd_seq_port_info_get_port(pPortInfo);
					QString sItem = QString::number(iAlsaClient) + ':';
					sItem += snd_seq_client_info_get_name(pClientInfo);
					sItem += c_pszItemSep;
					sItem += QString::number(iAlsaPort) + ':';
					sItem += snd_seq_port_info_get_name(pPortInfo);
					list.append(sItem);
				}
			}
		}
	}

	return list;
}
Example #4
0
/*
  discover the sequencer devices currently available
*/
static int alsa_sequencer_list(ClientData clientData, Tcl_Interp *interp) {
  snd_seq_client_info_t *cinfo;
  snd_seq_port_info_t *pinfo;
  Tcl_Obj *result = Tcl_NewListObj(0, NULL);
  if (init_seq(clientData, interp) != TCL_OK) {
    return TCL_ERROR;
  }
  snd_seq_client_info_alloca(&cinfo);
  snd_seq_port_info_alloca(&pinfo);

  snd_seq_client_info_set_client(cinfo, -1);
  while (snd_seq_query_next_client(seq, cinfo) >= 0) {
    int client = snd_seq_client_info_get_client(cinfo);
    snd_seq_port_info_set_client(pinfo, client);
    snd_seq_port_info_set_port(pinfo, -1);
    while (snd_seq_query_next_port(seq, pinfo) >= 0) {
      /* we need both READ and SUBS_READ */
      int capability = snd_seq_port_info_get_capability(pinfo);
      char *readable = ((capability &
			 (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ)) ==
			(SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ)) ? "r" : "";
      char *writable = ((capability &
			 (SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE)) ==
			(SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE)) ? "w" : "";
      Tcl_Obj *element = Tcl_ObjPrintf("%3d:%-3d  %-32.32s %s %s%s",
				       snd_seq_port_info_get_client(pinfo),
				       snd_seq_port_info_get_port(pinfo),
				       snd_seq_client_info_get_name(cinfo),
				       snd_seq_port_info_get_name(pinfo),
				       readable, writable);
      Tcl_ListObjAppendElement(interp, result, element);
    }
  }
  Tcl_SetObjResult(interp, result);
  return TCL_OK;
}
Example #5
0
void 
mastermidibus::port_start( int a_client, int a_port )
{
    lock();
    
 
    
    /* client info */
    snd_seq_client_info_t *cinfo;
    snd_seq_client_info_alloca(&cinfo);
    snd_seq_get_any_client_info( m_alsa_seq, a_client, cinfo );  
    
    /* port info */
    snd_seq_port_info_t *pinfo;
    
    /* fill pinfo */
    snd_seq_port_info_alloca(&pinfo);
    snd_seq_get_any_port_info( m_alsa_seq, a_client, a_port, pinfo );  
    
    
    /* get its capability */
    int cap =  snd_seq_port_info_get_capability(pinfo);
    
    if ( snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo)){
        
        /* the outs */
        if ( (cap & (SND_SEQ_PORT_CAP_SUBS_WRITE | SND_SEQ_PORT_CAP_WRITE ))
             == (SND_SEQ_PORT_CAP_SUBS_WRITE | SND_SEQ_PORT_CAP_WRITE )
             && snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo)){


            bool replacement = false;
            int bus_slot = m_num_out_buses;
            
            for( int i=0; i< m_num_out_buses; i++ ){
                
                if( m_buses_out[i]->get_client() == a_client  &&
                    m_buses_out[i]->get_port() == a_port &&
                    m_buses_out_active[i] == false ){
                    
                    replacement = true;
                    bus_slot = i;
                }
            }
            
            m_buses_out[bus_slot] = 
                new midibus( snd_seq_client_id( m_alsa_seq ),
                             snd_seq_port_info_get_client(pinfo),
                             snd_seq_port_info_get_port(pinfo),
                             m_alsa_seq,
                             snd_seq_client_info_get_name(cinfo),
                             snd_seq_port_info_get_name(pinfo),
                             m_num_out_buses, m_queue );
            
            m_buses_out[bus_slot]->init_out();
            m_buses_out_active[bus_slot] = true;
            m_buses_out_init[bus_slot] = true;
            
            if ( !replacement ){
                m_num_out_buses++;
            }
        }	
        
        /* the ins */
        if ( (cap & (SND_SEQ_PORT_CAP_SUBS_READ | SND_SEQ_PORT_CAP_READ ))
             == (SND_SEQ_PORT_CAP_SUBS_READ | SND_SEQ_PORT_CAP_READ )
             && snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo)){
            
            bool replacement = false;
            int bus_slot = m_num_in_buses;

          
            
            for( int i=0; i< m_num_in_buses; i++ ){
                
                if( m_buses_in[i]->get_client() == a_client  &&
                    m_buses_in[i]->get_port() == a_port &&
                    m_buses_in_active[i] == false ){
                    
                    replacement = true;
                    bus_slot = i;
                }
            }

            //printf( "in [%d] [%d]\n", replacement, bus_slot );
            
            m_buses_in[bus_slot] = 
                new midibus( snd_seq_client_id( m_alsa_seq ),
                             snd_seq_port_info_get_client(pinfo),
                             snd_seq_port_info_get_port(pinfo),
                             m_alsa_seq,
                             snd_seq_client_info_get_name(cinfo),
                             snd_seq_port_info_get_name(pinfo),
                             m_num_in_buses, m_queue);
            
            //m_buses_in[bus_slot]->init_in();
            m_buses_in_active[bus_slot] = true;
            m_buses_in_init[bus_slot] = true;

            if ( !replacement ){            
                m_num_in_buses++;
            }
        }	
    }
    
    /* end loop for clients */
    
    
    /* midi input */
    /* poll descriptors */

    /* get number of file descriptors */
    m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN);

    /* allocate into */
    m_poll_descriptors = new pollfd[m_num_poll_descriptors];
    
    /* get descriptors */
    snd_seq_poll_descriptors(m_alsa_seq,  
			     m_poll_descriptors, 
			     m_num_poll_descriptors, 
			     POLLIN);
    
    unlock();
}
Example #6
0
void
mastermidibus::init( )
{
    
    /* client info */
    snd_seq_client_info_t *cinfo;
    /* port info */
    snd_seq_port_info_t *pinfo;

    int client;

    snd_seq_client_info_alloca(&cinfo);
    snd_seq_client_info_set_client(cinfo, -1);

    //printf( "global_ports %d\n", global_manual_alsa_ports );
    
    if ( global_manual_alsa_ports )
    {

        int num_buses = 16;
        
        for( int i=0; i<num_buses; ++i )
        {

            m_buses_out[i] = 
                new midibus( snd_seq_client_id( m_alsa_seq ), m_alsa_seq, i+1, m_queue );

            m_buses_out[i]->init_out_sub();
            m_buses_out_active[i] = true;		
            m_buses_out_init[i] = true;
        }

        m_num_out_buses = num_buses;

        /* only one in */
        m_buses_in[0] = 
            new midibus( snd_seq_client_id( m_alsa_seq ),
                    m_alsa_seq,
                    m_num_in_buses, m_queue);

        m_buses_in[0]->init_in_sub();
        m_buses_in_active[0] = true;	
        m_buses_in_init[0] = true;
        m_num_in_buses = 1;


    }
    else 
    {
        /* while the next client one the sequencer is avaiable */
        while (snd_seq_query_next_client(m_alsa_seq, cinfo) >= 0){

            /* get client from cinfo */
            client = snd_seq_client_info_get_client(cinfo);

            /* fill pinfo */
            snd_seq_port_info_alloca(&pinfo);
            snd_seq_port_info_set_client(pinfo, client);
            snd_seq_port_info_set_port(pinfo, -1);

            /* while the next port is avail */
            while (snd_seq_query_next_port(m_alsa_seq, pinfo) >= 0 ){

                /* get its capability */
                int cap =  snd_seq_port_info_get_capability(pinfo);

                if ( snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo) &&
                        snd_seq_port_info_get_client(pinfo) != SND_SEQ_CLIENT_SYSTEM){

                    /* the outs */
                    if ( (cap & SND_SEQ_PORT_CAP_SUBS_WRITE) != 0 &&
                            snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo)){

                        m_buses_out[m_num_out_buses] = 
                            new midibus( snd_seq_client_id( m_alsa_seq ),
                                    snd_seq_port_info_get_client(pinfo),
                                    snd_seq_port_info_get_port(pinfo),
                                    m_alsa_seq,
                                    snd_seq_client_info_get_name(cinfo),
                                    snd_seq_port_info_get_name(pinfo),
                                    m_num_out_buses, m_queue );

                        if ( m_buses_out[m_num_out_buses]->init_out() ){
                            m_buses_out_active[m_num_out_buses] = true;		
                            m_buses_out_init[m_num_out_buses] = true;
                        } else {
                            m_buses_out_init[m_num_out_buses] = true;	
                        }

                        m_num_out_buses++;
                    }	

                    /* the ins */
                    if ( (cap & SND_SEQ_PORT_CAP_SUBS_READ) != 0 &&
                            snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo)){

                        m_buses_in[m_num_in_buses] = 
                            new midibus( snd_seq_client_id( m_alsa_seq ),
                                    snd_seq_port_info_get_client(pinfo),
                                    snd_seq_port_info_get_port(pinfo),
                                    m_alsa_seq,
                                    snd_seq_client_info_get_name(cinfo),
                                    snd_seq_port_info_get_name(pinfo),
                                    m_num_in_buses, m_queue);

                        //if ( m_buses_in[m_num_in_buses]->init_in() ){
                        m_buses_in_active[m_num_in_buses] = true;	
                        m_buses_in_init[m_num_in_buses] = true;
                        //} else {
                        //m_buses_in_init[m_num_in_buses] = true;	
                        //}
                        m_num_in_buses++;
                    }	
                }
            }

        } /* end loop for clients */
    }

    set_bpm( c_bpm );
    set_ppqn( c_ppqn );

    /* midi input */
    /* poll descriptors */

    /* get number of file descriptors */
    m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN);

    /* allocate into */
    m_poll_descriptors = new pollfd[m_num_poll_descriptors];

    /* get descriptors */
    snd_seq_poll_descriptors(m_alsa_seq,  
            m_poll_descriptors, 
            m_num_poll_descriptors, 
            POLLIN);

    set_sequence_input( false, NULL );

    /* sizes */
    snd_seq_set_output_buffer_size(m_alsa_seq, c_midibus_output_size ); 
    snd_seq_set_input_buffer_size(m_alsa_seq, c_midibus_input_size ); 


    m_bus_announce = 
        new midibus( snd_seq_client_id( m_alsa_seq ),
                SND_SEQ_CLIENT_SYSTEM,
                SND_SEQ_PORT_SYSTEM_ANNOUNCE,
                m_alsa_seq,
                "system","annouce",
                0, m_queue);

    m_bus_announce->set_input(true);   


    for ( int i=0; i<m_num_out_buses; i++ )
        set_clock(i,m_init_clock[i]);

    for ( int i=0; i<m_num_in_buses; i++ )
        set_input(i,m_init_input[i]);

    
}
//==============================================================================
static snd_seq_t* iterateDevices (const bool forInput,
                                  StringArray& deviceNamesFound,
                                  const int deviceIndexToOpen)
{
    snd_seq_t* returnedHandle = 0;
    snd_seq_t* seqHandle;

    if (snd_seq_open (&seqHandle, "default", forInput ? SND_SEQ_OPEN_INPUT
                                                      : SND_SEQ_OPEN_OUTPUT, 0) == 0)
    {
        snd_seq_system_info_t* systemInfo;
        snd_seq_client_info_t* clientInfo;

        if (snd_seq_system_info_malloc (&systemInfo) == 0)
        {
            if (snd_seq_system_info (seqHandle, systemInfo) == 0
                 && snd_seq_client_info_malloc (&clientInfo) == 0)
            {
                int numClients = snd_seq_system_info_get_cur_clients (systemInfo);

                while (--numClients >= 0 && returnedHandle == 0)
                {
                    if (snd_seq_query_next_client (seqHandle, clientInfo) == 0)
                    {
                        snd_seq_port_info_t* portInfo;
                        if (snd_seq_port_info_malloc (&portInfo) == 0)
                        {
                            int numPorts = snd_seq_client_info_get_num_ports (clientInfo);
                            const int client = snd_seq_client_info_get_client (clientInfo);

                            snd_seq_port_info_set_client (portInfo, client);
                            snd_seq_port_info_set_port (portInfo, -1);

                            while (--numPorts >= 0)
                            {
                                if (snd_seq_query_next_port (seqHandle, portInfo) == 0
                                     && (snd_seq_port_info_get_capability (portInfo)
                                           & (forInput ? SND_SEQ_PORT_CAP_READ
                                                       : SND_SEQ_PORT_CAP_WRITE)) != 0)
                                {
                                    deviceNamesFound.add (snd_seq_client_info_get_name (clientInfo));

                                    if (deviceNamesFound.size() == deviceIndexToOpen + 1)
                                    {
                                        const int sourcePort = snd_seq_port_info_get_port (portInfo);
                                        const int sourceClient = snd_seq_client_info_get_client (clientInfo);

                                        if (sourcePort != -1)
                                        {
                                            snd_seq_set_client_name (seqHandle,
                                                                     forInput ? "Juce Midi Input"
                                                                              : "Juce Midi Output");

                                            const int portId
                                                = snd_seq_create_simple_port (seqHandle,
                                                                              forInput ? "Juce Midi In Port"
                                                                                       : "Juce Midi Out Port",
                                                                              forInput ? (SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE)
                                                                                       : (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ),
                                                                              SND_SEQ_PORT_TYPE_MIDI_GENERIC);

                                            snd_seq_connect_from (seqHandle, portId, sourceClient, sourcePort);

                                            returnedHandle = seqHandle;
                                        }
                                    }
                                }
                            }

                            snd_seq_port_info_free (portInfo);
                        }
                    }
                }

                snd_seq_client_info_free (clientInfo);
            }

            snd_seq_system_info_free (systemInfo);
        }

        if (returnedHandle == 0)
            snd_seq_close (seqHandle);
    }

    deviceNamesFound.appendNumbersToDuplicates (true, true);

    return returnedHandle;
}
Example #8
0
// MIDI Input(readable) / Output(writable) device connects.
bool qxgeditMidiDevice::connectDeviceList (
	bool bReadable, const QStringList& list ) const
{
	if (m_pAlsaSeq == NULL)
		return false;

	if (list.isEmpty())
		return false;

	snd_seq_addr_t seq_addr;
	snd_seq_port_subscribe_t *pPortSubs;

	snd_seq_port_subscribe_alloca(&pPortSubs);

	snd_seq_client_info_t *pClientInfo;
	snd_seq_port_info_t   *pPortInfo;

	snd_seq_client_info_alloca(&pClientInfo);
	snd_seq_port_info_alloca(&pPortInfo);

	unsigned int uiPortFlags;
	if (bReadable)
		uiPortFlags = SND_SEQ_PORT_CAP_READ  | SND_SEQ_PORT_CAP_SUBS_READ;
	else
		uiPortFlags = SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE;

	int iConnects = 0;
	while (snd_seq_query_next_client(m_pAlsaSeq, pClientInfo) >= 0) {
		int iAlsaClient = snd_seq_client_info_get_client(pClientInfo);
		if (iAlsaClient > 0 && iAlsaClient != m_iAlsaClient) {
			QString sClientName = snd_seq_client_info_get_name(pClientInfo);
			snd_seq_port_info_set_client(pPortInfo, iAlsaClient);
			snd_seq_port_info_set_port(pPortInfo, -1);
			while (snd_seq_query_next_port(m_pAlsaSeq, pPortInfo) >= 0) {
				unsigned int uiPortCapability
					= snd_seq_port_info_get_capability(pPortInfo);
				if (((uiPortCapability & uiPortFlags) == uiPortFlags) &&
					((uiPortCapability & SND_SEQ_PORT_CAP_NO_EXPORT) == 0)) {
					int iAlsaPort = snd_seq_port_info_get_port(pPortInfo);
					QString sPortName = snd_seq_port_info_get_name(pPortInfo);
					QStringListIterator iter(list);
					while (iter.hasNext()) {
						const QString& sItem = iter.next();
						const QString& sClientItem
							= sItem.section(c_pszItemSep, 0, 0);
						const QString& sPortItem
							= sItem.section(c_pszItemSep, 1, 1);
						if (sClientName != sClientItem.section(':', 1, 1))
							continue;
						if (sPortName != sPortItem  .section(':', 1, 1))
							continue;
						if (bReadable) {
							seq_addr.client = iAlsaClient;
							seq_addr.port   = iAlsaPort;
							snd_seq_port_subscribe_set_sender(pPortSubs, &seq_addr);
							seq_addr.client = m_iAlsaClient;
							seq_addr.port   = m_iAlsaPort;
							snd_seq_port_subscribe_set_dest(pPortSubs, &seq_addr);
						} else {
							seq_addr.client = m_iAlsaClient;
							seq_addr.port   = m_iAlsaPort;
							snd_seq_port_subscribe_set_sender(pPortSubs, &seq_addr);
							seq_addr.client = iAlsaClient;
							seq_addr.port   = iAlsaPort;
							snd_seq_port_subscribe_set_dest(pPortSubs, &seq_addr);
						}
						if (snd_seq_subscribe_port(m_pAlsaSeq, pPortSubs) == 0)
							iConnects++;
					}
				}
			}
		}
	}

	return (iConnects > 0);
}
Example #9
0
void MidiAlsaSeq::updatePortList()
{
	QStringList readablePorts;
	QStringList writablePorts;

	// get input- and output-ports
	snd_seq_client_info_t * cinfo;
	snd_seq_port_info_t * pinfo;

	snd_seq_client_info_malloc( &cinfo );
	snd_seq_port_info_malloc( &pinfo );

	snd_seq_client_info_set_client( cinfo, -1 );

	m_seqMutex.lock();

	while( snd_seq_query_next_client( m_seqHandle, cinfo ) >= 0 )
	{
		int client = snd_seq_client_info_get_client( cinfo );

		snd_seq_port_info_set_client( pinfo, client );
		snd_seq_port_info_set_port( pinfo, -1 );
		while( snd_seq_query_next_port( m_seqHandle, pinfo ) >= 0 )
		{
			// we need both READ and SUBS_READ
			if( ( snd_seq_port_info_get_capability( pinfo )
			     & ( SND_SEQ_PORT_CAP_READ |
					SND_SEQ_PORT_CAP_SUBS_READ ) ) ==
					( SND_SEQ_PORT_CAP_READ |
					  	SND_SEQ_PORT_CAP_SUBS_READ ) )
			{
				readablePorts.push_back( __portName( cinfo, pinfo ) );
			}
			if( ( snd_seq_port_info_get_capability( pinfo )
			     & ( SND_SEQ_PORT_CAP_WRITE |
					SND_SEQ_PORT_CAP_SUBS_WRITE ) ) ==
					( SND_SEQ_PORT_CAP_WRITE |
					  	SND_SEQ_PORT_CAP_SUBS_WRITE ) )
			{
				writablePorts.push_back( __portName( cinfo, pinfo ) );
			}
		}
	}

	m_seqMutex.unlock();


	snd_seq_client_info_free( cinfo );
	snd_seq_port_info_free( pinfo );

	if( m_readablePorts != readablePorts )
	{
		m_readablePorts = readablePorts;
		emit readablePortsChanged();
	}

	if( m_writablePorts != writablePorts )
	{
		m_writablePorts = writablePorts;
		emit writablePortsChanged();
	}
}
Example #10
0
static int midi_hardware_refresh(MidiHardware *midi_hardware) {
    MidiDevicesInfo *info = create_zero<MidiDevicesInfo>();
    if (!info) {
        destroy_devices_info(info);
        return GenesisErrorNoMem;
    }

    info->devices.clear();
    info->default_device_index = -1;

    // don't default to MIDI through except as a last resort
    bool default_is_midi_through = false;

    snd_seq_client_info_set_client(midi_hardware->client_info, -1);
    while (snd_seq_query_next_client(midi_hardware->seq, midi_hardware->client_info) >= 0) {
        int client = snd_seq_client_info_get_client(midi_hardware->client_info);

        snd_seq_port_info_set_client(midi_hardware->port_info, client);
        snd_seq_port_info_set_port(midi_hardware->port_info, -1);
        while (snd_seq_query_next_port(midi_hardware->seq, midi_hardware->port_info) >= 0) {
            if ((snd_seq_port_info_get_capability(midi_hardware->port_info)
                & (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ))
                != (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ))
            {
                continue;
            }

            GenesisMidiDevice *device = create_zero<GenesisMidiDevice>();
            if (!device) {
                genesis_midi_device_unref(device);
                return GenesisErrorNoMem;
            }
            device->midi_hardware = midi_hardware;
            device->ref_count = 1;
            device->set_index = -1;
            device->client_id = snd_seq_port_info_get_client(midi_hardware->port_info);
            device->port_id = snd_seq_port_info_get_port(midi_hardware->port_info);
            device->client_name = strdup(snd_seq_client_info_get_name(midi_hardware->client_info));
            device->port_name = strdup(snd_seq_port_info_get_name(midi_hardware->port_info));
            if (!device->client_name || !device->port_name) {
                genesis_midi_device_unref(device);
                return GenesisErrorNoMem;
            }
            if (strcmp(device->client_name, "System") == 0 &&
                strcmp(device->port_name, "Timer") == 0)
            {
                genesis_midi_device_unref(midi_hardware->system_timer_device);
                midi_hardware->system_timer_device = device;
            } else if (strcmp(device->client_name, "System") == 0 &&
                       strcmp(device->port_name, "Announce") == 0)
            {
                genesis_midi_device_unref(midi_hardware->system_announce_device);
                midi_hardware->system_announce_device = device;
            } else {
                if (info->default_device_index == -1 || default_is_midi_through) {
                    info->default_device_index = info->devices.length();
                    default_is_midi_through = strcmp(device->client_name, "Midi Through") == 0;
                }
                int err = info->devices.append(device);
                if (err) {
                    genesis_midi_device_unref(device);
                    return GenesisErrorNoMem;
                }
            }
        }
    }

    os_mutex_lock(midi_hardware->mutex);

    MidiDevicesInfo *old_devices_info = midi_hardware->ready_devices_info;
    midi_hardware->ready_devices_info = info;

    os_mutex_unlock(midi_hardware->mutex);

    destroy_devices_info(old_devices_info);

    midi_hardware->events_signal(midi_hardware);

    return 0;
}
void
mastermidibus::init (int ppqn)
{
#ifdef SEQ64_HAVE_LIBASOUND
    snd_seq_client_info_t * cinfo;          /* client info */
    snd_seq_port_info_t * pinfo;            /* port info   */
    snd_seq_client_info_alloca(&cinfo);
    snd_seq_client_info_set_client(cinfo, -1);
    if (rc().manual_alsa_ports())
    {
        /*
         * Output busses
         */

        int num_buses = SEQ64_ALSA_OUTPUT_BUSS_MAX;
        for (int i = 0; i < num_buses; ++i)
        {
            if (not_nullptr(m_buses_out[i]))
            {
                delete m_buses_out[i];
                errprintf("mmbus::init() manual: m_buses_out[%d] not null\n", i);
            }
            m_buses_out[i] = new midibus
            (
                snd_seq_client_id(m_alsa_seq), m_alsa_seq, i+1, m_queue
            );
            m_buses_out[i]->init_out_sub();
            m_buses_out_active[i] = m_buses_out_init[i] = true;
        }
        m_num_out_buses = num_buses;
        if (not_nullptr(m_buses_in[0]))
        {
            delete m_buses_in[0];
            errprint("mmbus::init() manual: m_buses_[0] not null");
        }

        /*
         * Input buss.  Only the first element is set up.  The rest are used
         * only for non-manual ALSA ports in the else-class below.
         */

        m_num_in_buses = 1;
        m_buses_in[0] = new midibus
        (
            snd_seq_client_id(m_alsa_seq), m_alsa_seq, m_num_in_buses, m_queue
        );
        m_buses_in[0]->init_in_sub();
        m_buses_in_active[0] = m_buses_in_init[0] = true;
    }
    else
    {
        /*
         * While the next client for the sequencer is available, get the client
         * from cinfo.  Fill pinfo.
         */

        while (snd_seq_query_next_client(m_alsa_seq, cinfo) >= 0)
        {
            int client = snd_seq_client_info_get_client(cinfo);
            snd_seq_port_info_alloca(&pinfo);           /* will fill pinfo */
            snd_seq_port_info_set_client(pinfo, client);
            snd_seq_port_info_set_port(pinfo, -1);
            while (snd_seq_query_next_port(m_alsa_seq, pinfo) >= 0)
            {
                /*
                 * While the next port is available, get its capability.
                 */

                int cap = snd_seq_port_info_get_capability(pinfo);
                if
                (
                    ALSA_CLIENT_CHECK(pinfo) &&
                    snd_seq_port_info_get_client(pinfo) != SND_SEQ_CLIENT_SYSTEM
                )
                {
                    /*
                     * Output busses:
                     *
                     * Why are we doing the ALSA client check again here?
                     * Because it could be altered in the if-clause above.
                     */

                    if (CAP_WRITE(cap) && ALSA_CLIENT_CHECK(pinfo))
                    {
                        if (not_nullptr(m_buses_out[m_num_out_buses]))
                        {
                            delete m_buses_out[m_num_out_buses];
                            errprintf
                            (
                                "mmbus::init(): m_buses_out[%d] not null\n",
                                m_num_out_buses
                            );
                        }
                        m_buses_out[m_num_out_buses] = new midibus
                        (
                            snd_seq_client_id(m_alsa_seq),
                            snd_seq_port_info_get_client(pinfo),
                            snd_seq_port_info_get_port(pinfo), m_alsa_seq,
                            snd_seq_client_info_get_name(cinfo),
                            snd_seq_port_info_get_name(pinfo),
                            m_num_out_buses, m_queue
                        );
                        if (m_buses_out[m_num_out_buses]->init_out())
                        {
                            m_buses_out_active[m_num_out_buses] = true;
                            m_buses_out_init[m_num_out_buses] = true;
                        }
                        else
                            m_buses_out_init[m_num_out_buses] = true;

                        ++m_num_out_buses;
                    }

                    /*
                     * Input busses
                     */

                    if (CAP_READ(cap) && ALSA_CLIENT_CHECK(pinfo)) /* inputs */
                    {
                        if (not_nullptr(m_buses_in[m_num_in_buses]))
                        {
                            delete m_buses_in[m_num_in_buses];
                            errprintf
                            (
                                "mmbus::init(): m_buses_in[%d] not null\n",
                                m_num_in_buses
                            );
                        }
                        m_buses_in[m_num_in_buses] = new midibus
                        (
                            snd_seq_client_id(m_alsa_seq),
                            snd_seq_port_info_get_client(pinfo),
                            snd_seq_port_info_get_port(pinfo), m_alsa_seq,
                            snd_seq_client_info_get_name(cinfo),
                            snd_seq_port_info_get_name(pinfo),
                            m_num_in_buses, m_queue
                        );
                        m_buses_in_active[m_num_in_buses] =
                            m_buses_in_init[m_num_in_buses] = true;

                        ++m_num_in_buses;
                    }
                }
            }
        }                                       /* end loop for clients */
    }
    set_beats_per_minute(m_beats_per_minute);
    set_ppqn(ppqn);

    /*
     * Get the number of MIDI input poll file descriptors.  Allocate the
     * poll-descriptors array.  Then get the input poll-descriptors into the
     * array
     */

    m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN);
    m_poll_descriptors = new pollfd[m_num_poll_descriptors];
    snd_seq_poll_descriptors
    (
        m_alsa_seq, m_poll_descriptors, m_num_poll_descriptors, POLLIN
    );
    set_sequence_input(false, nullptr);

    /* Set the input and output buffer sizes */

    snd_seq_set_output_buffer_size(m_alsa_seq, c_midibus_output_size);
    snd_seq_set_input_buffer_size(m_alsa_seq, c_midibus_input_size);
    m_bus_announce = new midibus
    (
        snd_seq_client_id(m_alsa_seq),
        SND_SEQ_CLIENT_SYSTEM, SND_SEQ_PORT_SYSTEM_ANNOUNCE,
        m_alsa_seq, "system", "announce",   // was "annouce" ca 2016-04-03
        0, m_queue
    );
    m_bus_announce->set_input(true);
    for (int i = 0; i < m_num_out_buses; ++i)
        set_clock(i, m_init_clock[i]);

    for (int i = 0; i < m_num_in_buses; ++i)
        set_input(i, m_init_input[i]);

#endif  // SEQ64_HAVE_LIBASOUND
}
void
mastermidibus::port_start (int client, int port)
{
#ifdef SEQ64_HAVE_LIBASOUND
    automutex locker(m_mutex);
    snd_seq_client_info_t * cinfo;                      /* client info        */
    snd_seq_client_info_alloca(&cinfo);
    snd_seq_get_any_client_info(m_alsa_seq, client, cinfo);
    snd_seq_port_info_t * pinfo;                        /* port info          */
    snd_seq_port_info_alloca(&pinfo);
    snd_seq_get_any_port_info(m_alsa_seq, client, port, pinfo);

    int cap = snd_seq_port_info_get_capability(pinfo);  /* get its capability */
    if (ALSA_CLIENT_CHECK(pinfo))
    {
        if (CAP_FULL_WRITE(cap) && ALSA_CLIENT_CHECK(pinfo)) /* outputs */
        {
            bool replacement = false;
            int bus_slot = m_num_out_buses;
            for (int i = 0; i < m_num_out_buses; ++i)
            {
                if
                (
                    m_buses_out[i]->get_client() == client  &&
                    m_buses_out[i]->get_port() == port &&
                    ! m_buses_out_active[i]
                )
                {
                    replacement = true;
                    bus_slot = i;
                }
            }
            if (not_nullptr(m_buses_out[bus_slot]))
            {
                delete m_buses_out[bus_slot];
                errprintf
                (
                    "mastermidibus::port_start(): m_buses_out[%d] not null\n",
                    bus_slot
                );
            }
            m_buses_out[bus_slot] = new midibus
            (
                snd_seq_client_id(m_alsa_seq),
                snd_seq_port_info_get_client(pinfo),
                snd_seq_port_info_get_port(pinfo),
                m_alsa_seq,
                snd_seq_client_info_get_name(cinfo),
                snd_seq_port_info_get_name(pinfo),
                m_num_out_buses,
                m_queue
            );
            m_buses_out[bus_slot]->init_out();
            m_buses_out_active[bus_slot] = true;
            m_buses_out_init[bus_slot] = true;
            if (! replacement)
                ++m_num_out_buses;
        }
        if (CAP_FULL_READ(cap) && ALSA_CLIENT_CHECK(pinfo)) /* inputs */
        {
            bool replacement = false;
            int bus_slot = m_num_in_buses;
            for (int i = 0; i < m_num_in_buses; ++i)
            {
                if
                (
                    m_buses_in[i]->get_client() == client  &&
                    m_buses_in[i]->get_port() == port && ! m_buses_in_active[i]
                )
                {
                    replacement = true;
                    bus_slot = i;
                }
            }
            if (not_nullptr(m_buses_in[bus_slot]))
            {
                delete m_buses_in[bus_slot];
                errprintf
                (
                    "mmbus::port_start(): m_buses_in[%d] not null\n", bus_slot
                );
            }
            m_buses_in[bus_slot] = new midibus
            (
                snd_seq_client_id(m_alsa_seq),
                snd_seq_port_info_get_client(pinfo),
                snd_seq_port_info_get_port(pinfo),
                m_alsa_seq,
                snd_seq_client_info_get_name(cinfo),
                snd_seq_port_info_get_name(pinfo),
                m_num_in_buses,
                m_queue
            );
            m_buses_in_active[bus_slot] = true;
            m_buses_in_init[bus_slot] = true;
            if (! replacement)
                m_num_in_buses++;
        }
    }                                           /* end loop for clients */

    /*
     * Get the number of MIDI input poll file descriptors.
     */

    m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN);
    m_poll_descriptors = new pollfd[m_num_poll_descriptors]; /* allocate info */
    snd_seq_poll_descriptors                        /* get input descriptors */
    (
        m_alsa_seq, m_poll_descriptors, m_num_poll_descriptors, POLLIN
    );
#endif  // SEQ64_HAVE_LIBASOUND
}
Example #13
0
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;
    }
Example #14
0
void
mastermidibus::port_start (int a_client, int a_port)
{
#ifdef HAVE_LIBASOUND
    automutex locker(m_mutex);
    snd_seq_client_info_t * cinfo;                      /* client info */
    snd_seq_client_info_alloca(&cinfo);
    snd_seq_get_any_client_info(m_alsa_seq, a_client, cinfo);

    snd_seq_port_info_t * pinfo;                        /* port info */
    snd_seq_port_info_alloca(&pinfo);
    snd_seq_get_any_port_info(m_alsa_seq, a_client, a_port, pinfo);

    int cap = snd_seq_port_info_get_capability(pinfo);  /* get its capability */
    if (snd_seq_client_id(m_alsa_seq) != snd_seq_port_info_get_client(pinfo))
    {
        if                                              /* the outputs */
        (
            (cap & (SND_SEQ_PORT_CAP_SUBS_WRITE | SND_SEQ_PORT_CAP_WRITE)) ==
                (SND_SEQ_PORT_CAP_SUBS_WRITE | SND_SEQ_PORT_CAP_WRITE) &&
            snd_seq_client_id(m_alsa_seq) != snd_seq_port_info_get_client(pinfo)
        )
        {
            bool replacement = false;
            int bus_slot = m_num_out_buses;
            for (int i = 0; i < m_num_out_buses; i++)
            {
                if
                (
                    m_buses_out[i]->get_client() == a_client  &&
                    m_buses_out[i]->get_port() == a_port &&
                    m_buses_out_active[i] == false
                )
                {
                    replacement = true;
                    bus_slot = i;
                }
            }
            m_buses_out[bus_slot] = new midibus
            (
                snd_seq_client_id(m_alsa_seq),
                snd_seq_port_info_get_client(pinfo),
                snd_seq_port_info_get_port(pinfo),
                m_alsa_seq,
                snd_seq_client_info_get_name(cinfo),
                snd_seq_port_info_get_name(pinfo),
                m_num_out_buses,
                m_queue
            );
            m_buses_out[bus_slot]->init_out();
            m_buses_out_active[bus_slot] = true;
            m_buses_out_init[bus_slot] = true;
            if (! replacement)
                m_num_out_buses++;
        }
        if                                          /* the inputs */
        (
            (cap & (SND_SEQ_PORT_CAP_SUBS_READ | SND_SEQ_PORT_CAP_READ)) ==
                (SND_SEQ_PORT_CAP_SUBS_READ | SND_SEQ_PORT_CAP_READ) &&
            snd_seq_client_id(m_alsa_seq) != snd_seq_port_info_get_client(pinfo)
        )
        {
            bool replacement = false;
            int bus_slot = m_num_in_buses;
            for (int i = 0; i < m_num_in_buses; i++)
            {
                if
                (
                    m_buses_in[i]->get_client() == a_client  &&
                    m_buses_in[i]->get_port() == a_port &&
                    m_buses_in_active[i] == false
                )
                {
                    replacement = true;
                    bus_slot = i;
                }
            }
            m_buses_in[bus_slot] = new midibus
            (
                snd_seq_client_id(m_alsa_seq),
                snd_seq_port_info_get_client(pinfo),
                snd_seq_port_info_get_port(pinfo),
                m_alsa_seq,
                snd_seq_client_info_get_name(cinfo),
                snd_seq_port_info_get_name(pinfo),
                m_num_in_buses,
                m_queue
            );
            m_buses_in_active[bus_slot] = true;
            m_buses_in_init[bus_slot] = true;
            if (! replacement)
                m_num_in_buses++;
        }
    }                                           /* end loop for clients */

    /*
     * Get the number of MIDI input poll file descriptors.
     */

    m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN);
    m_poll_descriptors = new pollfd[m_num_poll_descriptors]; /* allocate info */
    snd_seq_poll_descriptors                        /* get input descriptors */
    (
        m_alsa_seq, m_poll_descriptors, m_num_poll_descriptors, POLLIN
    );
#endif  // HAVE_LIBASOUND
}
Example #15
0
void
mastermidibus::init()
{
#ifdef HAVE_LIBASOUND
    snd_seq_client_info_t * cinfo;          /* client info */
    snd_seq_port_info_t * pinfo;            /* port info   */
    snd_seq_client_info_alloca(&cinfo);
    snd_seq_client_info_set_client(cinfo, -1);
    if (global_manual_alsa_ports)
    {
        int num_buses = 16;
        for (int i = 0; i < num_buses; ++i)
        {
            m_buses_out[i] = new midibus
            (
                snd_seq_client_id(m_alsa_seq), m_alsa_seq, i+1, m_queue
            );
            m_buses_out[i]->init_out_sub();
            m_buses_out_active[i] = true;
            m_buses_out_init[i] = true;
        }
        m_num_out_buses = num_buses;
        m_num_in_buses = 1;                 /* only one in, or 0? */
        m_buses_in[0] = new midibus
        (
            snd_seq_client_id(m_alsa_seq), m_alsa_seq, m_num_in_buses, m_queue
        );
        m_buses_in[0]->init_in_sub();
        m_buses_in_active[0] = true;
        m_buses_in_init[0] = true;
    }
    else
    {
        /* While the next client for the sequencer is available */

        while (snd_seq_query_next_client(m_alsa_seq, cinfo) >= 0)
        {
            int client = snd_seq_client_info_get_client(cinfo);
            snd_seq_port_info_alloca(&pinfo);           /* will fill pinfo */
            snd_seq_port_info_set_client(pinfo, client);
            snd_seq_port_info_set_port(pinfo, -1);
            while (snd_seq_query_next_port(m_alsa_seq, pinfo) >= 0)
            {
                /* While the next port is available, get its capability */

                int cap =  snd_seq_port_info_get_capability(pinfo);
                if
                (
                    snd_seq_client_id(m_alsa_seq) !=
                        snd_seq_port_info_get_client(pinfo) &&
                    snd_seq_port_info_get_client(pinfo) != SND_SEQ_CLIENT_SYSTEM
                )
                {
                    if                              /* the outputs */
                    (
                        (cap & SND_SEQ_PORT_CAP_SUBS_WRITE) != 0 &&
                        snd_seq_client_id(m_alsa_seq) !=
                            snd_seq_port_info_get_client(pinfo)
                    )
                    {
                        m_buses_out[m_num_out_buses] = new midibus
                        (
                            snd_seq_client_id(m_alsa_seq),
                            snd_seq_port_info_get_client(pinfo),
                            snd_seq_port_info_get_port(pinfo),
                            m_alsa_seq,
                            snd_seq_client_info_get_name(cinfo),
                            snd_seq_port_info_get_name(pinfo),
                            m_num_out_buses,
                            m_queue
                        );
                        if (m_buses_out[m_num_out_buses]->init_out())
                        {
                            m_buses_out_active[m_num_out_buses] = true;
                            m_buses_out_init[m_num_out_buses] = true;
                        }
                        else
                            m_buses_out_init[m_num_out_buses] = true;

                        m_num_out_buses++;
                    }
                    if                              /* the inputs */
                    (
                        (cap & SND_SEQ_PORT_CAP_SUBS_READ) != 0 &&
                        snd_seq_client_id(m_alsa_seq) !=
                            snd_seq_port_info_get_client(pinfo)
                    )
                    {
                        m_buses_in[m_num_in_buses] = new midibus
                        (
                            snd_seq_client_id(m_alsa_seq),
                            snd_seq_port_info_get_client(pinfo),
                            snd_seq_port_info_get_port(pinfo),
                            m_alsa_seq,
                            snd_seq_client_info_get_name(cinfo),
                            snd_seq_port_info_get_name(pinfo),
                            m_num_in_buses,
                            m_queue
                        );
                        m_buses_in_active[m_num_in_buses] = true;
                        m_buses_in_init[m_num_in_buses] = true;
                        m_num_in_buses++;
                    }
                }
            }
        } /* end loop for clients */
    }
    set_bpm(c_bpm);
    set_ppqn(c_ppqn);

    /*
     * Get the number of MIDI input poll file descriptors.
     */

    m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN);
    m_poll_descriptors = new pollfd[m_num_poll_descriptors]; /* allocate into */
    snd_seq_poll_descriptors                    /* get input poll descriptors */
    (
        m_alsa_seq, m_poll_descriptors, m_num_poll_descriptors, POLLIN
    );
    set_sequence_input(false, nullptr);

    /* Set the input and output buffer sizes */

    snd_seq_set_output_buffer_size(m_alsa_seq, c_midibus_output_size);
    snd_seq_set_input_buffer_size(m_alsa_seq, c_midibus_input_size);
    m_bus_announce = new midibus
    (
        snd_seq_client_id(m_alsa_seq),
        SND_SEQ_CLIENT_SYSTEM, SND_SEQ_PORT_SYSTEM_ANNOUNCE,
        m_alsa_seq, "system", "annouce", 0, m_queue
    );
    m_bus_announce->set_input(true);
    for (int i = 0; i < m_num_out_buses; i++)
        set_clock(i, m_init_clock[i]);

    for (int i = 0; i < m_num_in_buses; i++)
        set_input(i, m_init_input[i]);

#endif  // HAVE_LIBASOUND
}
// Client:port refreshner.
int qjackctlAlsaClientList::updateClientPorts (void)
{
	qjackctlMainForm *pMainForm = qjackctlMainForm::getInstance();
	if (pMainForm == NULL)
		return 0;

	snd_seq_t *pAlsaSeq = pMainForm->alsaSeq();
	if (pAlsaSeq == NULL)
		return 0;

	int iDirtyCount = 0;

	markClientPorts(0);

#ifdef CONFIG_ALSA_SEQ

	unsigned int uiAlsaFlags;
	if (isReadable())
		uiAlsaFlags = SND_SEQ_PORT_CAP_READ  | SND_SEQ_PORT_CAP_SUBS_READ;
	else
		uiAlsaFlags = SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE;

	snd_seq_client_info_t *pClientInfo;
	snd_seq_port_info_t   *pPortInfo;

	snd_seq_client_info_alloca(&pClientInfo);
	snd_seq_port_info_alloca(&pPortInfo);
	snd_seq_client_info_set_client(pClientInfo, -1);

	while (snd_seq_query_next_client(pAlsaSeq, pClientInfo) >= 0) {

		int iAlsaClient = snd_seq_client_info_get_client(pClientInfo);
		if (iAlsaClient > 0) {
			qjackctlAlsaClient *pClient = findClient(iAlsaClient);
			snd_seq_port_info_set_client(pPortInfo, iAlsaClient);
			snd_seq_port_info_set_port(pPortInfo, -1);
			while (snd_seq_query_next_port(pAlsaSeq, pPortInfo) >= 0) {
				unsigned int uiPortCapability
					= snd_seq_port_info_get_capability(pPortInfo);
				if (((uiPortCapability & uiAlsaFlags) == uiAlsaFlags) &&
					((uiPortCapability & SND_SEQ_PORT_CAP_NO_EXPORT) == 0)) {
					QString sClientName = QString::number(iAlsaClient) + ':';
					sClientName += QString::fromUtf8(
						snd_seq_client_info_get_name(pClientInfo));
					qjackctlAlsaPort *pPort = 0;
					int iAlsaPort = snd_seq_port_info_get_port(pPortInfo);
					if (pClient == 0) {
						pClient = new qjackctlAlsaClient(this,
							sClientName, iAlsaClient);
						iDirtyCount++;
					} else {
						pPort = pClient->findPort(iAlsaPort);
						if (sClientName != pClient->clientName()) {
							pClient->setClientName(sClientName);
							iDirtyCount++;
						}
					}
					if (pClient) {
						QString sPortName = QString::number(iAlsaPort) + ':';
						sPortName += QString::fromUtf8(
							snd_seq_port_info_get_name(pPortInfo));
						if (pPort == 0) {
							pPort = new qjackctlAlsaPort(pClient,
								sPortName, iAlsaPort);
							iDirtyCount++;
						} else if (sPortName != pPort->portName()) {
							pPort->setPortName(sPortName);
							iDirtyCount++;
						}
					}
					if (pPort)
						pPort->markClientPort(1);
				}
			}
		}
	}

#endif	// CONFIG_ALSA_SEQ

	iDirtyCount += cleanClientPorts(0);

	return iDirtyCount;
}
Example #17
0
bool midi_init() {
	snd_seq_addr_t sender, receiver;
	snd_seq_port_info_t *pinfo;
	snd_seq_client_info_t *cinfo;
	bool found = false;

	if (snd_seq_open(&s_midi, "default", SND_SEQ_OPEN_OUTPUT, 0) < 0) {
		Error("Failed to initialize MIDI\n");
		s_midi = NULL;
		return false;
	}
	snd_seq_set_client_name(s_midi, s_midiCaption);

	/* Create a port to work on */
	s_midiPort = snd_seq_create_simple_port(s_midi, s_midiCaption, SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ, SND_SEQ_PORT_TYPE_MIDI_GENERIC);
	if (s_midiPort < 0) {
		Error("Failed to initialize MIDI\n");
		snd_seq_close(s_midi);
		s_midi = NULL;
		return false;
	}

	/* Try to find a MIDI out */
	snd_seq_port_info_alloca(&pinfo);
	snd_seq_client_info_alloca(&cinfo);
	snd_seq_client_info_set_client(cinfo, -1);

	/* Walk all clients and ports, and see if one matches our demands */
	while (snd_seq_query_next_client(s_midi, cinfo) >= 0 && !found) {
		int client;

		client = snd_seq_client_info_get_client(cinfo);
		if (client == 0) continue;

		snd_seq_port_info_set_client(pinfo, client);
		snd_seq_port_info_set_port(pinfo, -1);
		while (snd_seq_query_next_port(s_midi, pinfo) >= 0) {
			if ((snd_seq_port_info_get_capability(pinfo) & (SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE)) != (SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE)) continue;
			/* Most linux installations come with a Midi Through Port.
			 *  This is 'hardware' support that mostly ends up on your serial, which
			 *  you most likely do not have connected. So we skip it by default. */
			if (strncmp("Midi Through Port", snd_seq_port_info_get_name(pinfo), 17) == 0) continue;
			found = true;
			break;
		}
	}

	if (!found) {
		Error("No valid MIDI output ports.\n  Please install and start Timidity++ like: timidity -iA\n");
		snd_seq_delete_port(s_midi, s_midiPort);
		snd_seq_close(s_midi);
		s_midi = NULL;
		return false;
	}

	/* Subscribe ourself to the port */
	receiver.client = snd_seq_port_info_get_client(pinfo);
	receiver.port = snd_seq_port_info_get_port(pinfo);
	sender.client = snd_seq_client_id(s_midi);
	sender.port = s_midiPort;

	snd_seq_port_subscribe_malloc(&s_midiSubscription);
	snd_seq_port_subscribe_set_sender(s_midiSubscription, &sender);
	snd_seq_port_subscribe_set_dest(s_midiSubscription, &receiver);
	snd_seq_port_subscribe_set_time_update(s_midiSubscription, 1);
	snd_seq_port_subscribe_set_time_real(s_midiSubscription, 1);
	if (snd_seq_subscribe_port(s_midi, s_midiSubscription) < 0) {
		Error("Failed to subscript to MIDI output\n");
		snd_seq_delete_port(s_midi, s_midiPort);
		snd_seq_close(s_midi);
		s_midi = NULL;
		return false;
	}

	/* Start the MIDI decoder */
	if (snd_midi_event_new(4, &s_midiCoder) < 0) {
		Error("Failed to initialize MIDI decoder\n");
		snd_seq_delete_port(s_midi, s_midiPort);
		snd_seq_close(s_midi);
		s_midi = NULL;
		return false;
	}
	snd_midi_event_init(s_midiCoder);

	return true;
}