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MidiSndio.cpp
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MidiSndio.cpp
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/*
* MidiSndio.cpp - base-class that implements sndio midi support
*
* Copyright (c) 2010-2016 jackmsr@openbsd.net
* Copyright (c) 2016-2017 David Carlier <devnexen@gmail.com>
*
* This file is part of LMMS - https://lmms.io
*
* This program 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 2 of the License, or (at your option) any later version.
*
* This program 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 (see COPYING); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
*/
#include "MidiSndio.h"
#ifdef LMMS_HAVE_SNDIO
#include <QtGui/QLabel>
#include <QtGui/QLineEdit>
#ifdef LMMS_HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <poll.h>
#include "ConfigManager.h"
#include "gui_templates.h"
MidiSndio::MidiSndio( void ) :
MidiClientRaw(),
m_quit( FALSE )
{
QString dev = probeDevice();
if (dev == "")
{
m_hdl = mio_open( NULL, MIO_IN | MIO_OUT, 0 );
}
else
{
m_hdl = mio_open( dev.toAscii().data(), MIO_IN | MIO_OUT, 0 );
}
if( m_hdl == NULL )
{
printf( "sndio: failed opening sndio midi device\n" );
return;
}
start( QThread::LowPriority );
}
MidiSndio::~MidiSndio()
{
if( isRunning() )
{
m_quit = TRUE;
wait( 1000 );
terminate();
}
}
QString MidiSndio::probeDevice( void )
{
QString dev = ConfigManager::inst()->value( "MidiSndio", "device" );
return dev ;
}
void MidiSndio::sendByte( const unsigned char c )
{
mio_write( m_hdl, &c, 1 );
}
void MidiSndio::run( void )
{
struct pollfd pfd;
nfds_t nfds;
char buf[0x100], *p;
size_t n;
int ret;
while( m_quit == FALSE && m_hdl )
{
nfds = mio_pollfd( m_hdl, &pfd, POLLIN );
ret = poll( &pfd, nfds, 100 );
if ( ret < 0 )
break;
if ( !ret || !( mio_revents( m_hdl, &pfd ) & POLLIN ) )
continue;
n = mio_read( m_hdl, buf, sizeof(buf) );
if ( !n )
{
break;
}
for (p = buf; n > 0; n--, p++)
{
parseData( *p );
}
}
}
#endif /* LMMS_HAVE_SNDIO */