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livetrax/libs/surfaces/osc/osc.cc

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/*
* Copyright (C) 2006 Paul Davis
*
* 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include <iostream>
#include <fstream>
#include <cstdio>
#include <cstdlib>
#include <cerrno>
#include <algorithm>
#include <sys/poll.h>
#include <unistd.h>
#include <fcntl.h>
#include <glibmm/miscutils.h>
#include <boost/signals2.hpp>
#include <pbd/pthread_utils.h>
#include <pbd/file_utils.h>
#include <pbd/filesystem.h>
#include <pbd/failed_constructor.h>
#include "ardour/session.h"
#include "ardour/route.h"
#include "ardour/audio_track.h"
#include "ardour/midi_track.h"
#include "ardour/dB.h"
#include "ardour/filesystem_paths.h"
#include "osc.h"
#include "osc_controllable.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace std;
using namespace Glib;
#include "pbd/abstract_ui.cc" // instantiate template
#define ui_bind(f, ...) boost::protect (boost::bind (f, __VA_ARGS__))
OSC* OSC::_instance = 0;
#ifdef DEBUG
static void error_callback(int num, const char *m, const char *path)
{
fprintf(stderr, "liblo server error %d in path %s: %s\n", num, path, m);
}
#else
static void error_callback(int, const char *, const char *)
{
}
#endif
OSC::OSC (Session& s, uint32_t port)
: ControlProtocol (s, "OSC", this)
, AbstractUI<OSCUIRequest> ("osc")
, _port(port)
{
_instance = this;
_shutdown = false;
_osc_server = 0;
_osc_unix_server = 0;
_namespace_root = "/ardour";
_send_route_changes = true;
/* glibmm hack */
local_server = 0;
remote_server = 0;
// "Application Hooks"
session_loaded (s);
session->Exported.connect (*this, MISSING_INVALIDATOR, ui_bind (&OSC::session_exported, this, _1, _2), this);
}
OSC::~OSC()
{
stop ();
_instance = 0;
}
void
OSC::do_request (OSCUIRequest* req)
{
if (req->type == CallSlot) {
call_slot (MISSING_INVALIDATOR, req->the_slot);
} else if (req->type == Quit) {
stop ();
}
}
int
OSC::set_active (bool yn)
{
if (yn) {
return start ();
} else {
return stop ();
}
}
bool
OSC::get_active () const
{
return _osc_server != 0;
}
int
OSC::set_feedback (bool yn)
{
_send_route_changes = yn;
return 0;
}
bool
OSC::get_feedback () const
{
return _send_route_changes;
}
int
OSC::start ()
{
char tmpstr[255];
if (_osc_server) {
/* already started */
return 0;
}
for (int j=0; j < 20; ++j) {
snprintf(tmpstr, sizeof(tmpstr), "%d", _port);
if ((_osc_server = lo_server_new (tmpstr, error_callback))) {
break;
}
#ifdef DEBUG
cerr << "can't get osc at port: " << _port << endl;
#endif
_port++;
continue;
}
#ifdef ARDOUR_OSC_UNIX_SERVER
// APPEARS sluggish for now
// attempt to create unix socket server too
snprintf(tmpstr, sizeof(tmpstr), "/tmp/sooperlooper_XXXXXX");
int fd = mkstemp(tmpstr);
if (fd >= 0 ) {
unlink (tmpstr);
close (fd);
_osc_unix_server = lo_server_new (tmpstr, error_callback);
if (_osc_unix_server) {
_osc_unix_socket_path = tmpstr;
}
}
#endif
cerr << "OSC @ " << get_server_url () << endl;
PBD::sys::path url_file;
if (find_file_in_search_path (ardour_search_path() + system_config_search_path(),
"osc_url", url_file)) {
_osc_url_file = url_file.to_string();
ofstream urlfile;
urlfile.open(_osc_url_file.c_str(), ios::trunc);
if ( urlfile )
{
urlfile << get_server_url () << endl;
urlfile.close();
}
else
{
cerr << "Couldn't write '" << _osc_url_file << "'" <<endl;
}
}
register_callbacks();
// lo_server_thread_add_method(_sthread, NULL, NULL, OSC::_dummy_handler, this);
/* startup the event loop thread */
BaseUI::run ();
return 0;
}
void
OSC::thread_init ()
{
char* c = new char[4];
strcpy (c, X_("OSC"));
pthread_set_name (c);
if (_osc_unix_server) {
Glib::RefPtr<IOSource> src = IOSource::create (lo_server_get_socket_fd (_osc_unix_server), IO_IN|IO_HUP|IO_ERR);
src->connect (sigc::bind (sigc::mem_fun (*this, &OSC::osc_input_handler), _osc_unix_server));
src->attach (_main_loop->get_context());
local_server = src->gobj();
g_source_ref (local_server);
}
if (_osc_server) {
Glib::RefPtr<IOSource> src = IOSource::create (lo_server_get_socket_fd (_osc_server), IO_IN|IO_HUP|IO_ERR);
src->connect (sigc::bind (sigc::mem_fun (*this, &OSC::osc_input_handler), _osc_server));
src->attach (_main_loop->get_context());
remote_server = src->gobj();
g_source_ref (remote_server);
}
PBD::notify_gui_about_thread_creation (X_("gui"), pthread_self(), X_("OSC"), 2048);
SessionEvent::create_per_thread_pool (X_("OSC"), 128);
}
int
OSC::stop ()
{
/* stop main loop */
if (local_server) {
g_source_destroy (local_server);
g_source_unref (local_server);
local_server = 0;
}
if (remote_server) {
g_source_destroy (remote_server);
g_source_unref (remote_server);
remote_server = 0;
}
BaseUI::quit ();
if (_osc_server) {
int fd = lo_server_get_socket_fd(_osc_server);
if (fd >=0) {
close(fd);
}
lo_server_free (_osc_server);
_osc_server = 0;
}
if (_osc_unix_server) {
int fd = lo_server_get_socket_fd(_osc_unix_server);
if (fd >=0) {
close(fd);
}
lo_server_free (_osc_unix_server);
_osc_unix_server = 0;
}
if (!_osc_unix_socket_path.empty()) {
unlink (_osc_unix_socket_path.c_str());
}
if (!_osc_url_file.empty() ) {
unlink (_osc_url_file.c_str() );
}
return 0;
}
void
OSC::register_callbacks()
{
lo_server srvs[2];
lo_server serv;
srvs[0] = _osc_server;
srvs[1] = _osc_unix_server;
for (size_t i = 0; i < 2; ++i) {
if (!srvs[i]) {
continue;
}
serv = srvs[i];
/* this is a special catchall handler */
lo_server_add_method (serv, 0, 0, _catchall, this);
#define REGISTER_CALLBACK(serv,path,types, function) lo_server_add_method (serv, path, types, OSC::_ ## function, this)
REGISTER_CALLBACK (serv, "/ardour/add_marker", "", add_marker);
REGISTER_CALLBACK (serv, "/ardour/access_action", "s", access_action);
REGISTER_CALLBACK (serv, "/ardour/loop_toggle", "", loop_toggle);
REGISTER_CALLBACK (serv, "/ardour/goto_start", "", goto_start);
REGISTER_CALLBACK (serv, "/ardour/goto_end", "", goto_end);
REGISTER_CALLBACK (serv, "/ardour/rewind", "", rewind);
REGISTER_CALLBACK (serv, "/ardour/ffwd", "", ffwd);
REGISTER_CALLBACK (serv, "/ardour/transport_stop", "", transport_stop);
REGISTER_CALLBACK (serv, "/ardour/transport_play", "", transport_play);
REGISTER_CALLBACK (serv, "/ardour/set_transport_speed", "f", set_transport_speed);
REGISTER_CALLBACK (serv, "/ardour/locate", "ii", locate);
REGISTER_CALLBACK (serv, "/ardour/save_state", "", save_state);
REGISTER_CALLBACK (serv, "/ardour/prev_marker", "", prev_marker);
REGISTER_CALLBACK (serv, "/ardour/next_marker", "", next_marker);
REGISTER_CALLBACK (serv, "/ardour/undo", "", undo);
REGISTER_CALLBACK (serv, "/ardour/redo", "", redo);
REGISTER_CALLBACK (serv, "/ardour/toggle_punch_in", "", toggle_punch_in);
REGISTER_CALLBACK (serv, "/ardour/toggle_punch_out", "", toggle_punch_out);
REGISTER_CALLBACK (serv, "/ardour/rec_enable_toggle", "", rec_enable_toggle);
REGISTER_CALLBACK (serv, "/ardour/toggle_all_rec_enables", "", toggle_all_rec_enables);
REGISTER_CALLBACK (serv, "/ardour/routes/mute", "ii", route_mute);
REGISTER_CALLBACK (serv, "/ardour/routes/solo", "ii", route_solo);
REGISTER_CALLBACK (serv, "/ardour/routes/recenable", "ii", route_recenable);
REGISTER_CALLBACK (serv, "/ardour/routes/gainabs", "if", route_set_gain_abs);
REGISTER_CALLBACK (serv, "/ardour/routes/gaindB", "if", route_set_gain_dB);
#if 0
/* still not-really-standardized query interface */
REGISTER_CALLBACK (serv, "/ardour/*/#current_value", "", current_value);
REGISTER_CALLBACK (serv, "/ardour/set", "", set);
#endif
#if 0
// un/register_update args= s:ctrl s:returl s:retpath
lo_server_add_method(serv, "/register_update", "sss", OSC::global_register_update_handler, this);
lo_server_add_method(serv, "/unregister_update", "sss", OSC::global_unregister_update_handler, this);
lo_server_add_method(serv, "/register_auto_update", "siss", OSC::global_register_auto_update_handler, this);
lo_server_add_method(serv, "/unregister_auto_update", "sss", OSC::_global_unregister_auto_update_handler, this);
#endif
}
}
bool
OSC::osc_input_handler (IOCondition ioc, lo_server srv)
{
if (ioc & ~IO_IN) {
return false;
}
if (ioc & IO_IN) {
lo_server_recv (srv);
}
return true;
}
std::string
OSC::get_server_url()
{
string url;
char * urlstr;
if (_osc_server) {
urlstr = lo_server_get_url (_osc_server);
url = urlstr;
free (urlstr);
}
return url;
}
std::string
OSC::get_unix_server_url()
{
string url;
char * urlstr;
if (_osc_unix_server) {
urlstr = lo_server_get_url (_osc_unix_server);
url = urlstr;
free (urlstr);
}
return url;
}
void
OSC::current_value_query (const char* path, size_t len, lo_arg **argv, int argc, lo_message msg)
{
char* subpath;
subpath = (char*) malloc (len-15+1);
memcpy (subpath, path, len-15);
subpath[len-15] = '\0';
send_current_value (subpath, argv, argc, msg);
free (subpath);
}
void
OSC::send_current_value (const char* path, lo_arg** argv, int argc, lo_message msg)
{
if (!session) {
return;
}
lo_message reply = lo_message_new ();
boost::shared_ptr<Route> r;
int id;
lo_message_add_string (reply, path);
if (argc == 0) {
lo_message_add_string (reply, "bad syntax");
} else {
id = argv[0]->i;
r = session->route_by_remote_id (id);
if (!r) {
lo_message_add_string (reply, "not found");
} else {
if (strcmp (path, "/routes/state") == 0) {
if (boost::dynamic_pointer_cast<AudioTrack>(r)) {
lo_message_add_string (reply, "AT");
} else if (boost::dynamic_pointer_cast<MidiTrack>(r)) {
lo_message_add_string (reply, "MT");
} else {
lo_message_add_string (reply, "B");
}
lo_message_add_string (reply, r->name().c_str());
lo_message_add_int32 (reply, r->n_inputs().n_audio());
lo_message_add_int32 (reply, r->n_outputs().n_audio());
lo_message_add_int32 (reply, r->muted());
lo_message_add_int32 (reply, r->soloed());
} else if (strcmp (path, "/routes/mute") == 0) {
lo_message_add_int32 (reply, (float) r->muted());
} else if (strcmp (path, "/routes/solo") == 0) {
lo_message_add_int32 (reply, r->soloed());
}
}
}
lo_send_message (lo_message_get_source (msg), "#reply", reply);
lo_message_free (reply);
}
int
OSC::_catchall (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data)
{
return ((OSC*)user_data)->catchall (path, types, argv, argc, data);
}
int
OSC::catchall (const char *path, const char *types, lo_arg **argv, int argc, lo_message msg)
{
size_t len;
int ret = 1; /* unhandled */
cerr << "Received a message, path = " << path << " types = \""
<< (types ? types : "NULL") << '"' << endl;
/* 15 for /#current_value plus 2 for /<path> */
len = strlen (path);
if (len >= 17 && !strcmp (&path[len-15], "/#current_value")) {
current_value_query (path, len, argv, argc, msg);
ret = 0;
} else if (strcmp (path, "/routes/listen") == 0) {
cerr << "set up listener\n";
lo_message reply = lo_message_new ();
if (argc <= 0) {
lo_message_add_string (reply, "syntax error");
} else {
for (int n = 0; n < argc; ++n) {
boost::shared_ptr<Route> r = session->route_by_remote_id (argv[n]->i);
if (!r) {
lo_message_add_string (reply, "not found");
cerr << "no such route\n";
break;
} else {
cerr << "add listener\n";
listen_to_route (r, lo_message_get_source (msg));
lo_message_add_int32 (reply, argv[n]->i);
}
}
}
lo_send_message (lo_message_get_source (msg), "#reply", reply);
lo_message_free (reply);
} else if (strcmp (path, "/routes/ignore") == 0) {
for (int n = 0; n < argc; ++n) {
boost::shared_ptr<Route> r = session->route_by_remote_id (argv[n]->i);
if (r) {
end_listen (r, lo_message_get_source (msg));
}
}
}
return ret;
}
void
OSC::listen_to_route (boost::shared_ptr<Route> route, lo_address addr)
{
Controllables::iterator x;
bool route_exists = false;
cerr << "listen to route\n";
/* avoid duplicate listens */
for (x = controllables.begin(); x != controllables.end(); ++x) {
OSCRouteControllable* rc;
if ((rc = dynamic_cast<OSCRouteControllable*>(*x)) != 0) {
if (rc->route() == route) {
route_exists = true;
/* XXX NEED lo_address_equal() */
if (rc->address() == addr) {
return;
}
}
}
}
cerr << "listener binding to signals\n";
OSCControllable* c;
string path;
path = X_("/route/solo");
c = new OSCRouteControllable (addr, path, route->solo_control(), route);
controllables.push_back (c);
path = X_("/route/mute");
c = new OSCRouteControllable (addr, path, route->mute_control(), route);
controllables.push_back (c);
path = X_("/route/gain");
c = new OSCRouteControllable (addr, path, route->gain_control(), route);
controllables.push_back (c);
cerr << "Now have " << controllables.size() << " controllables\n";
/* if there is no existing controllable related to this route, make sure we clean up
if it is ever deleted.
*/
if (!route_exists) {
route->DropReferences.connect (*this, MISSING_INVALIDATOR, boost::bind (&OSC::drop_route, this, boost::weak_ptr<Route> (route)), this);
}
}
void
OSC::drop_route (boost::weak_ptr<Route> wr)
{
boost::shared_ptr<Route> r = wr.lock ();
if (!r) {
return;
}
for (Controllables::iterator x = controllables.begin(); x != controllables.end();) {
OSCRouteControllable* rc;
if ((rc = dynamic_cast<OSCRouteControllable*>(*x)) != 0) {
if (rc->route() == r) {
delete *x;
x = controllables.erase (x);
} else {
++x;
}
} else {
++x;
}
}
}
void
OSC::end_listen (boost::shared_ptr<Route> r, lo_address addr)
{
Controllables::iterator x;
for (x = controllables.begin(); x != controllables.end(); ++x) {
OSCRouteControllable* rc;
if ((rc = dynamic_cast<OSCRouteControllable*>(*x)) != 0) {
/* XXX NEED lo_address_equal () */
if (rc->route() == r && rc->address() == addr) {
controllables.erase (x);
return;
}
}
}
}
// "Application Hook" Handlers //
void
OSC::session_loaded( Session& s ) {
lo_address listener = lo_address_new( NULL, "7770" );
lo_send( listener, "/session/loaded", "ss", s.path().c_str(), s.name().c_str() );
}
void
OSC::session_exported( std::string path, std::string name ) {
lo_address listener = lo_address_new( NULL, "7770" );
lo_send( listener, "/session/exported", "ss", path.c_str(), name.c_str() );
}
// end "Application Hook" Handlers //
/* path callbacks */
int
OSC::current_value (const char */*path*/, const char */*types*/, lo_arg **/*argv*/, int /*argc*/, void */*data*/, void* /*user_data*/)
{
#if 0
const char* returl;
if (argc < 3 || types == 0 || strlen (types) < 3 || types[0] != 's' || types[1] != 's' || types[2] != s) {
return 1;
}
const char *returl = argv[1]->s;
lo_address addr = find_or_cache_addr (returl);
const char *retpath = argv[2]->s;
if (strcmp (argv[0]->s, "transport_frame") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else if (strcmp (argv[0]->s, "transport_speed") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else if (strcmp (argv[0]->s, "transport_locked") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else if (strcmp (argv[0]->s, "punch_in") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else if (strcmp (argv[0]->s, "punch_out") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else if (strcmp (argv[0]->s, "rec_enable") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else {
/* error */
}
#endif
return 0;
}
int
OSC::route_mute (int rid, int yn)
{
if (!session) return -1;
boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
if (r) {
r->set_mute (yn, this);
}
return 0;
}
int
OSC::route_solo (int rid, int yn)
{
if (!session) return -1;
boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
if (r) {
r->set_solo (yn, this);
}
return 0;
}
int
OSC::route_recenable (int rid, int yn)
{
if (!session) return -1;
boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
if (r) {
r->set_record_enable (yn, this);
}
return 0;
}
int
OSC::route_set_gain_abs (int rid, float level)
{
if (!session) return -1;
boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
if (r) {
r->set_gain (level, this);
}
return 0;
}
int
OSC::route_set_gain_dB (int rid, float dB)
{
if (!session) return -1;
boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
if (r) {
r->set_gain (dB_to_coefficient (dB), this);
}
return 0;
}
XMLNode&
OSC::get_state ()
{
return *(new XMLNode ("OSC"));
}
int
OSC::set_state (const XMLNode&, int /*version*/)
{
return 0;
}