midi.h

/*
 * Copyright (C) 2024 Mark Hills <mark@xwax.org>
 *
 * This file is part of "xwax".
 *
 * "xwax" is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License, version 3 as
 * published by the Free Software Foundation.
 *
 * "xwax" 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 <https://www.gnu.org/licenses/>.
 *
 */

#ifndef MIDI_H
#define MIDI_H

#include <alsa/asoundlib.h>

/*
 * State information for an open, non-blocking MIDI device
 */

struct midi {
    snd_rawmidi_t *in, *out;
};

int midi_open(struct midi *m, const char *name);
void midi_close(struct midi *m);

ssize_t midi_pollfds(struct midi *m, struct pollfd *pe, size_t len);
ssize_t midi_read(struct midi *m, void *buf, size_t len);
ssize_t midi_write(struct midi *m, const void *buf, size_t len);

#endif