2012-04-23 22:28:51 -04:00
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/*
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Copyright (C) 1998-2010 Paul Barton-Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __libmidi_port_h__
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#define __libmidi_port_h__
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#include <string>
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#include <iostream>
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#include <jack/types.h>
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#include "pbd/xml++.h"
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#include "pbd/crossthread.h"
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#include "pbd/signals.h"
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#include "pbd/ringbuffer.h"
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#include "evoral/Event.hpp"
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#include "evoral/EventRingBuffer.hpp"
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#include "midi++/types.h"
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#include "midi++/parser.h"
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#include "midi++/port.h"
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namespace MIDI {
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class Channel;
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class PortRequest;
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class JackMIDIPort : public Port {
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public:
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JackMIDIPort (std::string const &, Port::Flags, jack_client_t *);
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JackMIDIPort (const XMLNode&, jack_client_t *);
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~JackMIDIPort ();
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XMLNode& get_state () const;
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void set_state (const XMLNode&);
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void cycle_start (pframes_t nframes);
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void cycle_end ();
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void parse (framecnt_t timestamp);
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2012-04-30 11:54:13 -04:00
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int write (const byte *msg, size_t msglen, timestamp_t timestamp);
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2012-04-23 22:28:51 -04:00
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int read (byte *buf, size_t bufsize);
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void drain (int check_interval_usecs);
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int selectable () const { return xthread.selectable(); }
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pframes_t nframes_this_cycle() const { return _nframes_this_cycle; }
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void reestablish (jack_client_t *);
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void reconnect ();
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static void set_process_thread (pthread_t);
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static pthread_t get_process_thread () { return _process_thread; }
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static bool is_process_thread();
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static PBD::Signal0<void> MakeConnections;
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static PBD::Signal0<void> JackHalted;
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private:
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bool _currently_in_cycle;
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pframes_t _nframes_this_cycle;
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jack_client_t* _jack_client;
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jack_port_t* _jack_port;
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timestamp_t _last_write_timestamp;
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RingBuffer< Evoral::Event<double> > output_fifo;
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Evoral::EventRingBuffer<timestamp_t> input_fifo;
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Glib::Mutex output_fifo_lock;
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CrossThreadChannel xthread;
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int create_port ();
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/** Channel used to signal to the MidiControlUI that input has arrived */
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std::string _connections;
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PBD::ScopedConnection connect_connection;
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PBD::ScopedConnection halt_connection;
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void flush (void* jack_port_buffer);
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void jack_halted ();
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void make_connections ();
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void init (std::string const &, Flags);
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static pthread_t _process_thread;
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};
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} // namespace MIDI
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#endif // __libmidi_port_h__
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