424 lines
11 KiB
C
424 lines
11 KiB
C
|
|
/*******************************************************************************/
|
|
/* Copyright (C) 2008 Jonathan Moore Liles */
|
|
/* */
|
|
/* 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 the file COPYING. If not,write to the Free Software */
|
|
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
/*******************************************************************************/
|
|
|
|
/* Wrapper for a JACK audio port */
|
|
|
|
#include "Port.H"
|
|
|
|
#include <string.h>
|
|
#include <stdio.h> // sprintf
|
|
#include <errno.h>
|
|
|
|
#include <assert.h>
|
|
#include "debug.h"
|
|
|
|
namespace JACK
|
|
{
|
|
|
|
/* static char *name_for_port ( Port::direction_e dir, const char *base, int n, const char *type ); */
|
|
|
|
int
|
|
Port::max_name ( void )
|
|
{
|
|
return jack_port_name_size() - jack_client_name_size() - 6;
|
|
}
|
|
|
|
Port::Port ( const Port &rhs )
|
|
{
|
|
_connections = NULL;
|
|
_terminal = rhs._terminal;
|
|
// _connections = rhs._connections;
|
|
_client = rhs._client;
|
|
_port = rhs._port;
|
|
_direction = rhs._direction;
|
|
_type = rhs._type;
|
|
_name = NULL;
|
|
_name = strdup( rhs._name );
|
|
_trackname = NULL;
|
|
if ( rhs._trackname )
|
|
_trackname = strdup( rhs._trackname );
|
|
_client->port_added( this );
|
|
}
|
|
|
|
/* nframes is the number of frames to buffer */
|
|
Port::Port ( JACK::Client *client, jack_port_t *port )
|
|
{
|
|
_terminal = 0;
|
|
_connections = NULL;
|
|
_client = client;
|
|
_port = port;
|
|
_name = strdup( jack_port_name( port ) );
|
|
_trackname = NULL;
|
|
_direction = ( jack_port_flags( _port ) & JackPortIsOutput ) ? Output : Input;
|
|
const char *type = jack_port_type( _port );
|
|
|
|
_type = Audio;
|
|
if ( strstr( type, "MIDI") )
|
|
_type = MIDI;
|
|
|
|
_client->port_added( this );
|
|
|
|
}
|
|
|
|
Port::Port ( JACK::Client *client, const char *trackname, const char *name, direction_e dir, type_e type )
|
|
{
|
|
_port = 0;
|
|
_terminal = 0;
|
|
_name = NULL;
|
|
_trackname = NULL;
|
|
_connections = NULL;
|
|
_client = client;
|
|
_direction = dir;
|
|
_type = type;
|
|
_trackname = NULL;
|
|
|
|
if ( trackname )
|
|
_trackname = strdup( trackname );
|
|
|
|
_name = strdup( name );
|
|
|
|
_client->port_added( this );
|
|
}
|
|
|
|
/* Port::Port ( JACK::Client *client, direction_e dir, type_e type, const char *base, int n, const char *subtype ) */
|
|
/* { */
|
|
/* _port = 0; */
|
|
/* _terminal = 0; */
|
|
/* _name = NULL; */
|
|
/* _connections = NULL; */
|
|
/* _client = client; */
|
|
|
|
/* _name = name_for_port( dir, base, n, subtype ); */
|
|
/* _direction = dir; */
|
|
/* _type = type; */
|
|
|
|
/* _client->port_added( this ); */
|
|
/* } */
|
|
|
|
/* Port::Port ( JACK::Client *client, direction_e dir, type_e type, int n, const char *subtype ) */
|
|
/* { */
|
|
/* _port = 0; */
|
|
/* _terminal = 0; */
|
|
/* _name = NULL; */
|
|
/* _connections = NULL; */
|
|
/* _client = client; */
|
|
|
|
/* _name = name_for_port( dir, NULL, n, subtype ); */
|
|
/* _direction = dir; */
|
|
/* _type = type; */
|
|
|
|
/* _client->port_added( this ); */
|
|
/* } */
|
|
|
|
Port::~Port ( )
|
|
{
|
|
_client->port_removed( this );
|
|
|
|
if ( _name )
|
|
{
|
|
free( _name );
|
|
_name = NULL;
|
|
}
|
|
if ( _trackname )
|
|
{
|
|
free( _trackname );
|
|
_trackname = NULL;
|
|
}
|
|
|
|
}
|
|
|
|
/* sort input before output and then by alpha */
|
|
bool
|
|
Port::operator < ( const Port & rhs ) const
|
|
{
|
|
if ( type() == rhs.type() )
|
|
return strcmp( name(), rhs.name() );
|
|
else
|
|
return direction() == Port::Input;
|
|
}
|
|
|
|
|
|
/* static char * */
|
|
/* name_for_port ( Port::direction_e dir, const char *base, int n, const char *type ) */
|
|
/* { */
|
|
/* char *pname; */
|
|
|
|
/* const char *dir_s = dir == Port::Output ? "out" : "in"; */
|
|
|
|
/* if ( type ) */
|
|
/* asprintf( &pname, "%s-%s%s%s-%d", type, base ? base : "", base ? "/" : "", dir_s, n + 1 ); */
|
|
/* else */
|
|
/* asprintf( &pname, "%s%s%s-%d", base ? base : "", base ? "/" : "", dir_s, n + 1 ); */
|
|
|
|
/* return pname; */
|
|
/* } */
|
|
|
|
bool
|
|
Port::activate ( void )
|
|
{
|
|
/* assert( !_port ); */
|
|
|
|
int flags = 0;
|
|
|
|
if ( _direction == Output )
|
|
flags |= JackPortIsOutput;
|
|
else
|
|
flags |= JackPortIsInput;
|
|
|
|
if ( _terminal )
|
|
flags |= JackPortIsTerminal;
|
|
|
|
char jackname[max_name()];
|
|
|
|
snprintf( jackname, sizeof(jackname), "%s%s%s", _trackname ? _trackname : "", _trackname ? "/" : "", _name );
|
|
|
|
DMESSAGE( "Activating port name %s", jackname );
|
|
_port = jack_port_register( _client->jack_client(), jackname,
|
|
_type == Audio ? JACK_DEFAULT_AUDIO_TYPE : JACK_DEFAULT_MIDI_TYPE,
|
|
flags,
|
|
0 );
|
|
|
|
DMESSAGE( "Port = %p", _port );
|
|
|
|
if ( ! _port )
|
|
return false;
|
|
|
|
_client->port_added( this );
|
|
|
|
return true;
|
|
}
|
|
|
|
/** returns the sum of latency of all ports between this one and a
|
|
terminal port. */
|
|
nframes_t
|
|
Port::total_latency ( void ) const
|
|
{
|
|
#ifdef HAVE_JACK_PORT_GET_LATENCY_RANGE
|
|
jack_latency_range_t range;
|
|
|
|
jack_port_get_latency_range( _port, _direction == Input ? JackPlaybackLatency : JackCaptureLatency, &range );
|
|
|
|
return range.max;
|
|
#else
|
|
return jack_port_get_total_latency( _client->jack_client() , _port );
|
|
#endif
|
|
}
|
|
|
|
/** returns the number of frames of latency assigned to this port */
|
|
void
|
|
Port::get_latency ( direction_e dir, nframes_t *min, nframes_t *max ) const
|
|
{
|
|
#ifdef HAVE_JACK_PORT_GET_LATENCY_RANGE
|
|
jack_latency_range_t range;
|
|
|
|
jack_port_get_latency_range( _port, dir == Output ? JackPlaybackLatency : JackCaptureLatency, &range );
|
|
|
|
*min = range.min;
|
|
*max = range.max;
|
|
#else
|
|
*min = *max = jack_port_get_latency( _port );
|
|
#endif
|
|
|
|
}
|
|
|
|
/** inform JACK that port has /frames/ frames of latency */
|
|
void
|
|
Port::set_latency ( direction_e dir, nframes_t min, nframes_t max )
|
|
{
|
|
#ifdef HAVE_JACK_PORT_GET_LATENCY_RANGE
|
|
jack_latency_range_t range;
|
|
// DMESSAGE( "Setting port latency!" );
|
|
|
|
range.max = max;
|
|
range.min = min;
|
|
|
|
jack_port_set_latency_range( _port, dir == Output ? JackPlaybackLatency : JackCaptureLatency, &range );
|
|
#else
|
|
jack_port_set_latency( _port, max );
|
|
#endif
|
|
}
|
|
|
|
void
|
|
Port::shutdown ( void )
|
|
{
|
|
deactivate();
|
|
|
|
_client->port_removed( this );
|
|
}
|
|
|
|
void
|
|
Port::deactivate ( void )
|
|
{
|
|
if ( _port )
|
|
jack_port_unregister( _client->jack_client(), _port );
|
|
|
|
_port = 0;
|
|
}
|
|
|
|
|
|
void
|
|
Port::name ( const char *name )
|
|
{
|
|
if ( _name )
|
|
free( _name );
|
|
|
|
_name = strdup( name );
|
|
}
|
|
|
|
void
|
|
Port::trackname ( const char *trackname )
|
|
{
|
|
if ( _trackname )
|
|
free( _trackname );
|
|
|
|
_trackname = NULL;
|
|
|
|
if ( trackname )
|
|
_trackname = strdup( trackname );
|
|
}
|
|
|
|
bool
|
|
Port::rename ( void )
|
|
{
|
|
char jackname[max_name()];
|
|
|
|
snprintf( jackname, sizeof(jackname), "%s%s%s", _trackname ? _trackname : "", _trackname ? "/" : "", _name );
|
|
|
|
if ( _port )
|
|
return 0 == jack_port_set_name( _port, jackname );
|
|
else
|
|
return false;
|
|
}
|
|
|
|
void
|
|
Port::write ( sample_t *buf, nframes_t nframes )
|
|
{
|
|
memcpy( buffer( nframes ), buf, nframes * sizeof( sample_t ) );
|
|
}
|
|
|
|
void
|
|
Port::read ( sample_t *buf, nframes_t nframes )
|
|
{
|
|
memcpy( buf, buffer( nframes ), nframes * sizeof( sample_t ) );
|
|
}
|
|
|
|
void *
|
|
Port::buffer ( nframes_t nframes )
|
|
{
|
|
return jack_port_get_buffer( _port, nframes );
|
|
}
|
|
|
|
void
|
|
Port::silence ( nframes_t nframes )
|
|
{
|
|
memset( buffer( nframes ), 0, nframes * sizeof( sample_t ) );
|
|
}
|
|
|
|
/** Return a malloc()'d null terminated array of strings
|
|
* representing all ports to which this port is connected. */
|
|
const char **
|
|
Port::connections ( void )
|
|
{
|
|
return jack_port_get_connections( _port );
|
|
}
|
|
|
|
/** Restore the connections returned by connections() */
|
|
bool
|
|
Port::connections ( const char **port_names )
|
|
{
|
|
if ( ! port_names )
|
|
return true;
|
|
|
|
for ( const char **port_name = port_names; *port_name; ++port_name )
|
|
{
|
|
printf( "Attempting to reconnect to %s\n", *port_name );
|
|
connect( *port_name );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
int
|
|
Port::connect ( const char *to )
|
|
{
|
|
const char *name = jack_port_name( _port );
|
|
|
|
if ( _direction == Output )
|
|
{
|
|
return jack_connect( _client->jack_client(), name, to );
|
|
}
|
|
else
|
|
{
|
|
return jack_connect( _client->jack_client(), to, name );
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
Port::disconnect ( const char *from )
|
|
{
|
|
const char *name = jack_port_name( _port );
|
|
|
|
if ( _direction == Output )
|
|
{
|
|
return jack_disconnect( _client->jack_client(), name, from );
|
|
}
|
|
else
|
|
{
|
|
return jack_disconnect( _client->jack_client(), from, name );
|
|
}
|
|
}
|
|
|
|
bool
|
|
Port::connected_to ( const char *to )
|
|
{
|
|
return jack_port_connected_to( _port, to );
|
|
}
|
|
|
|
void
|
|
Port::freeze ( void )
|
|
{
|
|
if ( _connections )
|
|
free( _connections );
|
|
|
|
// DMESSAGE( "Freezing port %s", _name );
|
|
|
|
_connections = connections();
|
|
|
|
// deactivate();
|
|
}
|
|
|
|
void
|
|
Port::thaw ( void )
|
|
{
|
|
// DMESSAGE( "Thawing port %s", _name );
|
|
|
|
activate();
|
|
|
|
if ( _connections )
|
|
{
|
|
connections( _connections );
|
|
|
|
free( _connections );
|
|
|
|
_connections = NULL;
|
|
}
|
|
}
|
|
}
|