alsaport.h

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/*
    MIDI Sequencer C++ library
    Copyright (C) 2006-2024, Pedro Lopez-Cabanillas <plcl@users.sf.net>
 
    This library is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
 
#ifndef DRUMSTICK_ALSAPORT_H
#define DRUMSTICK_ALSAPORT_H
 
#include "subscription.h"
#include <QObject>
 
namespace drumstick { namespace ALSA {
 
#if defined(DRUMSTICK_STATIC)
#define DRUMSTICK_ALSA_EXPORT
#else
#if defined(drumstick_alsa_EXPORTS)
#define DRUMSTICK_ALSA_EXPORT Q_DECL_EXPORT
#else
#define DRUMSTICK_ALSA_EXPORT Q_DECL_IMPORT
#endif
#endif
 
class MidiClient;
 
class DRUMSTICK_ALSA_EXPORT PortInfo
{
    friend class MidiPort;
    friend class ClientInfo;
    friend class MidiClient;
 
public:
    PortInfo();
    PortInfo(const PortInfo& other);
    explicit PortInfo(snd_seq_port_info_t* other);
    PortInfo(MidiClient* seq, const int client, const int port);
    PortInfo(MidiClient* seq, const int port);
    virtual ~PortInfo();
    PortInfo* clone();
    PortInfo& operator=(const PortInfo& other);
    int getSizeOfInfo() const;
 
    int getClient();
    int getPort();
    QString getClientName() const;
    const snd_seq_addr_t* getAddr();
    QString getName();
    unsigned int getCapability();
    unsigned int getType();
    int getMidiChannels();
    int getMidiVoices();
    int getSynthVoices();
    int getReadUse();
    int getWriteUse();
    int getPortSpecified();
    void setClient(int client);
    void setPort(int port);
    void setAddr(const snd_seq_addr_t* addr);
    void setName( QString const& name );
    void setCapability(unsigned int capability);
    void setType(unsigned int type);
    void setMidiChannels(int channels);
    void setMidiVoices(int voices);
    void setSynthVoices(int voices);
    void setPortSpecified(int val);
    SubscribersList getReadSubscribers() const;
    SubscribersList getWriteSubscribers() const;
 
    bool getTimestamping();
    bool getTimestampReal();
    int getTimestampQueue();
    void setTimestamping(bool value);
    void setTimestampReal(bool value);
    void setTimestampQueue(int queueId);
 
protected:
    void readSubscribers(MidiClient* seq);
    void freeSubscribers();
    void setClientName(QString name);
 
private:
    snd_seq_port_info_t* m_Info;
    QString m_ClientName;
    SubscribersList m_ReadSubscribers;
    SubscribersList m_WriteSubscribers;
};
 
 
typedef QList<PortInfo> PortInfoList;
 
class DRUMSTICK_ALSA_EXPORT MidiPort : public QObject
{
    Q_OBJECT
    friend class MidiClient;
 
public:
    explicit MidiPort( QObject* parent = nullptr );
    virtual ~MidiPort();
 
    void attach( MidiClient* seq );
    void detach();
    void subscribe( Subscription* subs );
    void unsubscribe( Subscription* subs );
    void unsubscribeAll();
    void unsubscribeTo( QString const& name );
    void unsubscribeTo( PortInfo* port );
    void unsubscribeTo( const snd_seq_addr_t* addr );
    void unsubscribeFrom( QString const& name );
    void unsubscribeFrom( PortInfo* port );
    void unsubscribeFrom( const snd_seq_addr_t* addr );
    void subscribeTo( PortInfo* port);
    void subscribeTo( int client, int port );
    void subscribeTo( QString const& name );
    void subscribeFrom( PortInfo* port );
    void subscribeFrom( int client, int port );
    void subscribeFrom( QString const& name );
    void subscribeFromAnnounce();
    void updateSubscribers();
    SubscriptionsList getSubscriptions() const;
    PortInfoList getReadSubscribers();
    PortInfoList getWriteSubscribers();
    void updateConnectionsTo(const PortInfoList& desired);
    void updateConnectionsFrom(const PortInfoList& desired);
 
    static bool containsAddress(const snd_seq_addr_t* addr, const PortInfoList& lst);
 
    void applyPortInfo();
    QString getPortName();
    void setPortName( QString const& newName);
    int getPortId();
    unsigned int getCapability();
    void setCapability( unsigned int newValue);
    unsigned int getPortType();
    void setPortType( unsigned int newValue);
    int getMidiChannels();
    void setMidiChannels(int newValue);
    int getMidiVoices();
    void setMidiVoices(int newValue);
    int getSynthVoices();
    void setSynthVoices(int newValue);
    bool getTimestamping();
    bool getTimestampReal();
    int getTimestampQueue();
    void setTimestamping(bool value);
    void setTimestampReal(bool value);
    void setTimestampQueue(int queueId);
 
Q_SIGNALS:
    void subscribed(drumstick::ALSA::MidiPort* port, drumstick::ALSA::Subscription* subs);
    void midiClientChanged(drumstick::ALSA::MidiPort* port, drumstick::ALSA::MidiClient* seq);
    void attached(drumstick::ALSA::MidiPort* port);
    void detached(drumstick::ALSA::MidiPort* port);
 
protected:
    PortInfo* getPortInfo();
    void freeSubscriptions();
    void setMidiClient( MidiClient* seq );
 
private:
    MidiClient* m_MidiClient;
    PortInfo m_Info;
    bool m_Attached;
    SubscriptionsList m_Subscriptions;
};
 
typedef QList<MidiPort*> MidiPortList;
 
}} /* namespace drumstick::ALSA */
 
#endif //DRUMSTICK_ALSAPORT_H