77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
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/*
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Copyright (C) 2004 Paul 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 __alsa_sequencer_midiport_h__
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#define __alsa_sequencer_midiport_h__
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#include <vector>
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#include <string>
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#include <fcntl.h>
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#include <unistd.h>
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#include <alsa/asoundlib.h>
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#include <midi++/port.h>
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namespace MIDI {
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class ALSA_SequencerMidiPort : public Port
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{
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public:
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ALSA_SequencerMidiPort (const XMLNode&);
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virtual ~ALSA_SequencerMidiPort ();
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int write (byte *msg, size_t msglen, timestamp_t timestamp);
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int read (byte *buf, size_t max);
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/* select(2)/poll(2)-based I/O */
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virtual int selectable() const;
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static int discover (std::vector<PortSet>&);
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static std::string typestring;
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XMLNode& get_state() const;
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void set_state (const XMLNode&);
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protected:
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std::string get_typestring () const {
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return typestring;
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}
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private:
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snd_midi_event_t *decoder, *encoder;
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int port_id;
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snd_seq_event_t SEv;
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int create_ports (const Port::Descriptor&);
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static int init_client (std::string name);
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static snd_seq_t* seq;
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typedef std::pair<int,int> SequencerPortAddress;
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void get_connections (std::vector<SequencerPortAddress>&, int dir) const;
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};
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}; /* namespace MIDI */
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#endif // __alsa_sequencer_midiport_h__
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