libs/surfaces/osc/osc.cc

   1 /*
   2  * Copyright (C) 2006 Paul Davis
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  *
  18  */
  19
  20 #include <iostream>
  21 #include <fstream>
  22 #include <cstdio>
  23 #include <cstdlib>
  24 #include <cerrno>
  25 #include <algorithm>
  26
  27 #include <sys/poll.h>
  28 #include <unistd.h>
  29 #include <fcntl.h>
  30
  31 #include <glibmm/miscutils.h>
  32 #include <boost/signals2.hpp>
  33
  34 #include <pbd/pthread_utils.h>
  35 #include <pbd/file_utils.h>
  36 #include <pbd/filesystem.h>
  37 #include <pbd/failed_constructor.h>
  38
  39 #include "ardour/session.h"
  40 #include "ardour/route.h"
  41 #include "ardour/audio_track.h"
  42 #include "ardour/midi_track.h"
  43 #include "ardour/dB.h"
  44 #include "ardour/filesystem_paths.h"
  45 #include "ardour/panner.h"
  46 #include "ardour/plugin.h"
  47
  48 #include "osc.h"
  49 #include "osc_controllable.h"
  50 #include "osc_route_observer.h"
  51 #include "i18n.h"
  52
  53 using namespace ARDOUR;
  54 using namespace std;
  55 using namespace Glib;
  56
  57 #include "pbd/abstract_ui.cc" // instantiate template
  58
  59 #define ui_bind(f, ...) boost::protect (boost::bind (f, __VA_ARGS__))
  60
  61 OSC* OSC::_instance = 0;
  62
  63 #ifdef DEBUG
  64 static void error_callback(int num, const char *m, const char *path)
  65 {
  66         fprintf(stderr, "liblo server error %d in path %s: %s\n", num, path, m);
  67 }
  68 #else
  69 static void error_callback(int, const char *, const char *)
  70 {
  71
  72 }
  73 #endif
  74
  75 OSC::OSC (Session& s, uint32_t port)
  76         : ControlProtocol (s, "OSC", this)
  77         , AbstractUI<OSCUIRequest> ("osc")
  78         , _port(port)
  79 {
  80         _instance = this;
  81         _shutdown = false;
  82         _osc_server = 0;
  83         _osc_unix_server = 0;
  84         _namespace_root = "/ardour";
  85         _send_route_changes = true;
  86
  87         /* glibmm hack */
  88         local_server = 0;
  89         remote_server = 0;
  90
  91         // "Application Hooks"
  92         session_loaded (s);
  93         session->Exported.connect (*this, MISSING_INVALIDATOR, ui_bind (&OSC::session_exported, this, _1, _2), this);
  94 }
  95
  96 OSC::~OSC()
  97 {
  98         stop ();
  99         _instance = 0;
 100 }
 101
 102 void
 103 OSC::do_request (OSCUIRequest* req)
 104 {
 105         if (req->type == CallSlot) {
 106
 107                 call_slot (MISSING_INVALIDATOR, req->the_slot);
 108
 109         } else if (req->type == Quit) {
 110
 111                 stop ();
 112         }
 113 }
 114
 115 int
 116 OSC::set_active (bool yn)
 117 {
 118         if (yn) {
 119                 return start ();
 120         } else {
 121                 return stop ();
 122         }
 123 }
 124
 125 bool
 126 OSC::get_active () const
 127 {
 128         return _osc_server != 0;
 129 }
 130
 131 int
 132 OSC::set_feedback (bool yn)
 133 {
 134         _send_route_changes = yn;
 135         return 0;
 136 }
 137
 138 bool
 139 OSC::get_feedback () const
 140 {
 141         return _send_route_changes;
 142 }
 143
 144 int
 145 OSC::start ()
 146 {
 147         char tmpstr[255];
 148
 149         if (_osc_server) {
 150                 /* already started */
 151                 return 0;
 152         }
 153
 154         for (int j=0; j < 20; ++j) {
 155                 snprintf(tmpstr, sizeof(tmpstr), "%d", _port);
 156
 157                 //if ((_osc_server = lo_server_new_with_proto (tmpstr, LO_TCP, error_callback))) {
 158                 //      break;
 159                 //}
 160
 161                 if ((_osc_server = lo_server_new (tmpstr, error_callback))) {
 162                         break;
 163                 }
 164
 165 #ifdef DEBUG
 166                 cerr << "can't get osc at port: " << _port << endl;
 167 #endif
 168                 _port++;
 169                 continue;
 170         }
 171
 172 #ifdef ARDOUR_OSC_UNIX_SERVER
 173
 174         // APPEARS sluggish for now
 175
 176         // attempt to create unix socket server too
 177
 178         snprintf(tmpstr, sizeof(tmpstr), "/tmp/sooperlooper_XXXXXX");
 179         int fd = mkstemp(tmpstr);
 180
 181         if (fd >= 0 ) {
 182                 unlink (tmpstr);
 183                 close (fd);
 184
 185                 _osc_unix_server = lo_server_new (tmpstr, error_callback);
 186
 187                 if (_osc_unix_server) {
 188                         _osc_unix_socket_path = tmpstr;
 189                 }
 190         }
 191 #endif
 192
 193         cerr << "OSC @ " << get_server_url () << endl;
 194
 195         PBD::sys::path url_file;
 196
 197         if (find_file_in_search_path (ardour_search_path() + system_config_search_path(),
 198                                       "osc_url", url_file)) {
 199
 200                 _osc_url_file = url_file.to_string();
 201                 ofstream urlfile;
 202                 urlfile.open(_osc_url_file.c_str(), ios::trunc);
 203
 204                 if ( urlfile ){
 205                         urlfile << get_server_url () << endl;
 206                         urlfile.close();
 207                 }
 208                 else {
 209                         cerr << "Couldn't write '" <<  _osc_url_file << "'" <<endl;
 210                 }
 211         }
 212
 213         register_callbacks();
 214
 215         // lo_server_thread_add_method(_sthread, NULL, NULL, OSC::_dummy_handler, this);
 216
 217         /* startup the event loop thread */
 218
 219         BaseUI::run ();
 220
 221         return 0;
 222 }
 223
 224 void
 225 OSC::thread_init ()
 226 {
 227         char* c = new char[4];
 228         strcpy (c, X_("OSC"));
 229         pthread_set_name (c);
 230
 231         if (_osc_unix_server) {
 232                 Glib::RefPtr<IOSource> src = IOSource::create (lo_server_get_socket_fd (_osc_unix_server), IO_IN|IO_HUP|IO_ERR);
 233                 src->connect (sigc::bind (sigc::mem_fun (*this, &OSC::osc_input_handler), _osc_unix_server));
 234                 src->attach (_main_loop->get_context());
 235                 local_server = src->gobj();
 236                 g_source_ref (local_server);
 237         }
 238
 239         if (_osc_server) {
 240                 Glib::RefPtr<IOSource> src  = IOSource::create (lo_server_get_socket_fd (_osc_server), IO_IN|IO_HUP|IO_ERR);
 241                 src->connect (sigc::bind (sigc::mem_fun (*this, &OSC::osc_input_handler), _osc_server));
 242                 src->attach (_main_loop->get_context());
 243                 remote_server = src->gobj();
 244                 g_source_ref (remote_server);
 245         }
 246
 247         PBD::notify_gui_about_thread_creation (X_("gui"), pthread_self(), X_("OSC"), 2048);
 248         SessionEvent::create_per_thread_pool (X_("OSC"), 128);
 249 }
 250
 251 int
 252 OSC::stop ()
 253 {
 254         /* stop main loop */
 255
 256         if (local_server) {
 257                 g_source_destroy (local_server);
 258                 g_source_unref (local_server);
 259                 local_server = 0;
 260         }
 261
 262         if (remote_server) {
 263                 g_source_destroy (remote_server);
 264                 g_source_unref (remote_server);
 265                 remote_server = 0;
 266         }
 267
 268         BaseUI::quit ();
 269
 270         if (_osc_server) {
 271                 int fd = lo_server_get_socket_fd(_osc_server);
 272                 if (fd >=0) {
 273                         close(fd);
 274                 }
 275                 lo_server_free (_osc_server);
 276                 _osc_server = 0;
 277         }
 278
 279         if (_osc_unix_server) {
 280                 int fd = lo_server_get_socket_fd(_osc_unix_server);
 281                 if (fd >=0) {
 282                         close(fd);
 283                 }
 284                 lo_server_free (_osc_unix_server);
 285                 _osc_unix_server = 0;
 286         }
 287
 288         if (!_osc_unix_socket_path.empty()) {
 289                 unlink (_osc_unix_socket_path.c_str());
 290         }
 291
 292         if (!_osc_url_file.empty() ) {
 293                 unlink (_osc_url_file.c_str() );
 294         }
 295
 296         return 0;
 297 }
 298
 299 void
 300 OSC::register_callbacks()
 301 {
 302         lo_server srvs[2];
 303         lo_server serv;
 304
 305         srvs[0] = _osc_server;
 306         srvs[1] = _osc_unix_server;
 307
 308         for (size_t i = 0; i < 2; ++i) {
 309
 310                 if (!srvs[i]) {
 311                         continue;
 312                 }
 313
 314                 serv = srvs[i];
 315
 316                 /* this is a special catchall handler */
 317
 318                 lo_server_add_method (serv, 0, 0, _catchall, this);
 319
 320 #define REGISTER_CALLBACK(serv,path,types, function) lo_server_add_method (serv, path, types, OSC::_ ## function, this)
 321
 322                 REGISTER_CALLBACK (serv, "/ardour/add_marker", "", add_marker);
 323                 REGISTER_CALLBACK (serv, "/ardour/access_action", "s", access_action);
 324                 REGISTER_CALLBACK (serv, "/ardour/loop_toggle", "", loop_toggle);
 325                 REGISTER_CALLBACK (serv, "/ardour/goto_start", "", goto_start);
 326                 REGISTER_CALLBACK (serv, "/ardour/goto_end", "", goto_end);
 327                 REGISTER_CALLBACK (serv, "/ardour/rewind", "", rewind);
 328                 REGISTER_CALLBACK (serv, "/ardour/ffwd", "", ffwd);
 329                 REGISTER_CALLBACK (serv, "/ardour/transport_stop", "", transport_stop);
 330                 REGISTER_CALLBACK (serv, "/ardour/transport_play", "", transport_play);
 331                 //REGISTER_CALLBACK (serv, "/ardour/transport_frame", "", transport_frame);
 332                 REGISTER_CALLBACK (serv, "/ardour/set_transport_speed", "f", set_transport_speed);
 333                 REGISTER_CALLBACK (serv, "/ardour/locate", "ii", locate);
 334                 REGISTER_CALLBACK (serv, "/ardour/save_state", "", save_state);
 335                 REGISTER_CALLBACK (serv, "/ardour/prev_marker", "", prev_marker);
 336                 REGISTER_CALLBACK (serv, "/ardour/next_marker", "", next_marker);
 337                 REGISTER_CALLBACK (serv, "/ardour/undo", "", undo);
 338                 REGISTER_CALLBACK (serv, "/ardour/redo", "", redo);
 339                 REGISTER_CALLBACK (serv, "/ardour/toggle_punch_in", "", toggle_punch_in);
 340                 REGISTER_CALLBACK (serv, "/ardour/toggle_punch_out", "", toggle_punch_out);
 341                 REGISTER_CALLBACK (serv, "/ardour/rec_enable_toggle", "", rec_enable_toggle);
 342                 REGISTER_CALLBACK (serv, "/ardour/toggle_all_rec_enables", "", toggle_all_rec_enables);
 343
 344                 REGISTER_CALLBACK (serv, "/ardour/routes/mute", "ii", route_mute);
 345                 REGISTER_CALLBACK (serv, "/ardour/routes/solo", "ii", route_solo);
 346                 REGISTER_CALLBACK (serv, "/ardour/routes/recenable", "ii", route_recenable);
 347                 REGISTER_CALLBACK (serv, "/ardour/routes/gainabs", "if", route_set_gain_abs);
 348                 REGISTER_CALLBACK (serv, "/ardour/routes/gaindB", "if", route_set_gain_dB);
 349                 REGISTER_CALLBACK (serv, "/ardour/routes/pan_stereo_position", "if", route_set_pan_stereo_position);
 350                 REGISTER_CALLBACK (serv, "/ardour/routes/pan_stereo_width", "if", route_set_pan_stereo_width);
 351                 REGISTER_CALLBACK (serv, "/ardour/routes/plugin/parameter", "iiif", route_plugin_parameter);
 352                 REGISTER_CALLBACK (serv, "/ardour/routes/plugin/parameter/print", "iii", route_plugin_parameter_print);
 353
 354
 355
 356                 /* still not-really-standardized query interface */
 357                 //REGISTER_CALLBACK (serv, "/ardour/*/#current_value", "", current_value);
 358                 //REGISTER_CALLBACK (serv, "/ardour/set", "", set);
 359
 360                 // un/register_update args= s:ctrl s:returl s:retpath
 361                 //lo_server_add_method(serv, "/register_update", "sss", OSC::global_register_update_handler, this);
 362                 //lo_server_add_method(serv, "/unregister_update", "sss", OSC::global_unregister_update_handler, this);
 363                 //lo_server_add_method(serv, "/register_auto_update", "siss", OSC::global_register_auto_update_handler, this);
 364                 //lo_server_add_method(serv, "/unregister_auto_update", "sss", OSC::_global_unregister_auto_update_handler, this);
 365
 366         }
 367 }
 368
 369 bool
 370 OSC::osc_input_handler (IOCondition ioc, lo_server srv)
 371 {
 372         if (ioc & ~IO_IN) {
 373                 return false;
 374         }
 375
 376         if (ioc & IO_IN) {
 377                 lo_server_recv (srv);
 378         }
 379
 380         return true;
 381 }
 382
 383 std::string
 384 OSC::get_server_url()
 385 {
 386         string url;
 387         char * urlstr;
 388
 389         if (_osc_server) {
 390                 urlstr = lo_server_get_url (_osc_server);
 391                 url = urlstr;
 392                 free (urlstr);
 393         }
 394
 395         return url;
 396 }
 397
 398 std::string
 399 OSC::get_unix_server_url()
 400 {
 401         string url;
 402         char * urlstr;
 403
 404         if (_osc_unix_server) {
 405                 urlstr = lo_server_get_url (_osc_unix_server);
 406                 url = urlstr;
 407                 free (urlstr);
 408         }
 409
 410         return url;
 411 }
 412
 413
 414 void
 415 OSC::current_value_query (const char* path, size_t len, lo_arg **argv, int argc, lo_message msg)
 416 {
 417         char* subpath;
 418
 419         subpath = (char*) malloc (len-15+1);
 420         memcpy (subpath, path, len-15);
 421         subpath[len-15] = '\0';
 422
 423         send_current_value (subpath, argv, argc, msg);
 424
 425         free (subpath);
 426 }
 427
 428 void
 429 OSC::send_current_value (const char* path, lo_arg** argv, int argc, lo_message msg)
 430 {
 431         if (!session) {
 432                 return;
 433         }
 434
 435         lo_message reply = lo_message_new ();
 436         boost::shared_ptr<Route> r;
 437         int id;
 438
 439         lo_message_add_string (reply, path);
 440
 441         if (argc == 0) {
 442                 lo_message_add_string (reply, "bad syntax");
 443         } else {
 444                 id = argv[0]->i;
 445                 r = session->route_by_remote_id (id);
 446
 447                 if (!r) {
 448                         lo_message_add_string (reply, "not found");
 449                 } else {
 450
 451                         if (strcmp (path, "/routes/state") == 0) {
 452
 453                                 if (boost::dynamic_pointer_cast<AudioTrack>(r)) {
 454                                         lo_message_add_string (reply, "AT");
 455                                 } else if (boost::dynamic_pointer_cast<MidiTrack>(r)) {
 456                                         lo_message_add_string (reply, "MT");
 457                                 } else {
 458                                         lo_message_add_string (reply, "B");
 459                                 }
 460
 461                                 lo_message_add_string (reply, r->name().c_str());
 462                                 lo_message_add_int32 (reply, r->n_inputs().n_audio());
 463                                 lo_message_add_int32 (reply, r->n_outputs().n_audio());
 464                                 lo_message_add_int32 (reply, r->muted());
 465                                 lo_message_add_int32 (reply, r->soloed());
 466
 467                         } else if (strcmp (path, "/routes/mute") == 0) {
 468
 469                                 lo_message_add_int32 (reply, (float) r->muted());
 470
 471                         } else if (strcmp (path, "/routes/solo") == 0) {
 472
 473                                 lo_message_add_int32 (reply, r->soloed());
 474                         }
 475                 }
 476         }
 477
 478         lo_send_message (lo_message_get_source (msg), "#reply", reply);
 479         lo_message_free (reply);
 480 }
 481
 482 int
 483 OSC::_catchall (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data)
 484 {
 485         return ((OSC*)user_data)->catchall (path, types, argv, argc, data);
 486 }
 487
 488 int
 489 OSC::catchall (const char *path, const char *types, lo_arg **argv, int argc, lo_message msg)
 490 {
 491         size_t len;
 492         int ret = 1; /* unhandled */
 493
 494         //cerr << "Received a message, path = " << path << " types = \""
 495         //     << (types ? types : "NULL") << '"' << endl;
 496
 497         /* 15 for /#current_value plus 2 for /<path> */
 498
 499         len = strlen (path);
 500
 501         if (len >= 17 && !strcmp (&path[len-15], "/#current_value")) {
 502                 current_value_query (path, len, argv, argc, msg);
 503                 ret = 0;
 504         } else if (strcmp (path, "/ardour/transport_frame") == 0) {
 505
 506                 framepos_t pos = transport_frame ();
 507
 508                 lo_message reply = lo_message_new ();
 509                 lo_message_add_int64 (reply, pos);
 510
 511                 lo_send_message (lo_message_get_source (msg), "/ardour/transport_frame", reply);
 512
 513                 lo_message_free (reply);
 514
 515                 ret = 0;
 516
 517         } else if (strcmp (path, "/routes/listen") == 0) {
 518
 519                 cerr << "set up listener\n";
 520
 521                 lo_message reply = lo_message_new ();
 522
 523                 if (argc <= 0) {
 524                         lo_message_add_string (reply, "syntax error");
 525                 } else {
 526                         for (int n = 0; n < argc; ++n) {
 527
 528                                 boost::shared_ptr<Route> r = session->route_by_remote_id (argv[n]->i);
 529
 530                                 if (!r) {
 531                                         lo_message_add_string (reply, "not found");
 532                                         cerr << "no such route\n";
 533                                         break;
 534                                 } else {
 535                                         cerr << "add listener\n";
 536                                         listen_to_route (r, lo_message_get_source (msg));
 537                                         lo_message_add_int32 (reply, argv[n]->i);
 538                                 }
 539                         }
 540                 }
 541
 542                 lo_send_message (lo_message_get_source (msg), "#reply", reply);
 543                 lo_message_free (reply);
 544
 545                 ret = 0;
 546
 547         } else if (strcmp (path, "/routes/ignore") == 0) {
 548
 549                 for (int n = 0; n < argc; ++n) {
 550
 551                         boost::shared_ptr<Route> r = session->route_by_remote_id (argv[n]->i);
 552
 553                         if (r) {
 554                                 end_listen (r, lo_message_get_source (msg));
 555                         }
 556                 }
 557
 558                 ret = 0;
 559
 560         } else if (strcmp (path, "/routes/list") == 0) {
 561
 562                 for (int n = 0; n < (int) session->nroutes(); ++n) {
 563
 564                         boost::shared_ptr<Route> r = session->route_by_remote_id (n);
 565
 566                         if (r) {
 567
 568                                 lo_message reply = lo_message_new ();
 569
 570                                 if (boost::dynamic_pointer_cast<AudioTrack>(r)) {
 571                                         lo_message_add_string (reply, "AT");
 572                                 } else if (boost::dynamic_pointer_cast<MidiTrack>(r)) {
 573                                         lo_message_add_string (reply, "MT");
 574                                 } else {
 575                                         lo_message_add_string (reply, "B");
 576                                 }
 577
 578                                 lo_message_add_string (reply, r->name().c_str());
 579                                 lo_message_add_int32 (reply, r->n_inputs().n_audio());
 580                                 lo_message_add_int32 (reply, r->n_outputs().n_audio());
 581                                 lo_message_add_int32 (reply, r->muted());
 582                                 lo_message_add_int32 (reply, r->soloed());
 583                                 lo_message_add_int32 (reply, r->remote_control_id());
 584
 585                                 if (boost::dynamic_pointer_cast<AudioTrack>(r)
 586                                         || boost::dynamic_pointer_cast<MidiTrack>(r)) {
 587
 588                                         boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track>(r);
 589                                         lo_message_add_int32 (reply, t->record_enabled());
 590                                 }
 591
 592                                 lo_send_message (lo_message_get_source (msg), "#reply", reply);
 593                                 lo_message_free (reply);
 594
 595                                 //Automatically listen to routes listed
 596                                 listen_to_route(r, lo_message_get_source (msg));
 597                         }
 598                 }
 599
 600                 // Send end of listing message
 601                 lo_message reply = lo_message_new ();
 602
 603                 lo_message_add_string (reply, "end_route_list");
 604                 lo_message_add_int64 (reply, session->frame_rate());
 605                 lo_message_add_int64 (reply, session->current_end_frame());
 606
 607                 lo_send_message (lo_message_get_source (msg), "#reply", reply);
 608
 609                 lo_message_free (reply);
 610
 611                 ret = 0;
 612         }
 613
 614         return ret;
 615 }
 616
 617 void
 618 OSC::update_clock (){
 619
 620 }
 621
 622 void
 623 OSC::listen_to_route (boost::shared_ptr<Route> route, lo_address addr)
 624 {
 625         Controllables::iterator x;
 626         bool route_exists = false;
 627
 628         cerr << "listen to route\n";
 629
 630         /* avoid duplicate listens */
 631
 632         for (x = controllables.begin(); x != controllables.end(); ++x) {
 633
 634                 OSCRouteControllable* rc;
 635
 636                 if ((rc = dynamic_cast<OSCRouteControllable*>(*x)) != 0) {
 637
 638                         if (rc->route() == route) {
 639                                 route_exists = true;
 640
 641                                 /* XXX NEED lo_address_equal() */
 642                                 int res = strcmp(lo_address_get_hostname(rc->address()), lo_address_get_hostname(addr));
 643
 644                                 if (res == 0) {
 645                                         cerr << "already listening to route" << endl;
 646                                         return;
 647                                 }
 648                         }
 649                 }
 650         }
 651
 652         cerr << "listener binding to signals\n";
 653
 654         OSCControllable* c;
 655         string path;
 656
 657         if (boost::dynamic_pointer_cast<AudioTrack>(route) || boost::dynamic_pointer_cast<MidiTrack>(route)) {
 658
 659                 boost::shared_ptr<Track> track = boost::dynamic_pointer_cast<Track>(route);
 660
 661                 path = X_("/route/rec");
 662                 c = new OSCRouteControllable (addr, path, track->rec_enable_control(), track);
 663                 controllables.push_back (c);
 664         }
 665
 666         path = X_("/route/solo");
 667         c = new OSCRouteControllable (addr, path, route->solo_control(), route);
 668         controllables.push_back (c);
 669
 670         path = X_("/route/mute");
 671         c = new OSCRouteControllable (addr, path, route->mute_control(), route);
 672         controllables.push_back (c);
 673
 674         path = X_("/route/gain");
 675         c = new OSCRouteControllable (addr, path, route->gain_control(), route);
 676         controllables.push_back (c);
 677
 678         cerr << "Now have " << controllables.size() << " controllables\n";
 679
 680         OSCRouteObserver* o;
 681
 682         o = new OSCRouteObserver (addr, path, route);
 683         observables.push_back (o);
 684
 685         /* if there is no existing controllable related to this route, make sure we clean up
 686            if it is ever deleted.
 687         */
 688
 689         if (!route_exists) {
 690                 route->DropReferences.connect (*this, MISSING_INVALIDATOR, boost::bind (&OSC::drop_route, this, boost::weak_ptr<Route> (route)), this);
 691         }
 692 }
 693
 694 void
 695 OSC::drop_route (boost::weak_ptr<Route> wr)
 696 {
 697         boost::shared_ptr<Route> r = wr.lock ();
 698
 699         if (!r) {
 700                 return;
 701         }
 702
 703         for (Controllables::iterator x = controllables.begin(); x != controllables.end();) {
 704
 705                 OSCRouteControllable* rc;
 706
 707                 if ((rc = dynamic_cast<OSCRouteControllable*>(*x)) != 0) {
 708                         if (rc->route() == r) {
 709                                 delete *x;
 710                                 x = controllables.erase (x);
 711                         } else {
 712                                 ++x;
 713                         }
 714                 } else {
 715                         ++x;
 716                 }
 717         }
 718 }
 719
 720 void
 721 OSC::end_listen (boost::shared_ptr<Route> r, lo_address addr)
 722 {
 723         Controllables::iterator x;
 724
 725         for (x = controllables.begin(); x != controllables.end();) {
 726
 727                 OSCRouteControllable* rc;
 728
 729                 if ((rc = dynamic_cast<OSCRouteControllable*>(*x)) != 0) {
 730
 731                         /* XXX NEED lo_address_equal () */
 732                         if (rc->route() == r && (0 == strcmp(lo_address_get_hostname(rc->address()), lo_address_get_hostname(addr)))){
 733                                 delete *x;
 734                                 x = controllables.erase (x);
 735                         }
 736                         else {
 737                                 ++x;
 738                         }
 739                 }
 740                 else {
 741                         ++x;
 742                 }
 743         }
 744
 745         Observables::iterator z;
 746
 747         // Remove the route observers
 748         for (z = observables.begin(); z != observables.end();) {
 749
 750                 OSCRouteObserver* ro;
 751
 752                 if ((ro = dynamic_cast<OSCRouteObserver*>(*z)) != 0) {
 753
 754                         /* XXX NEED lo_address_equal () */
 755                         if (ro->route() == r){
 756                                 delete *z;
 757                                 z = observables.erase (z);
 758                         }
 759                         else {
 760                                 ++z;
 761                         }
 762                 }
 763                 else {
 764                         ++z;
 765                 }
 766         }
 767 }
 768
 769
 770 // "Application Hook" Handlers //
 771 void
 772 OSC::session_loaded( Session& s ) {
 773         lo_address listener = lo_address_new( NULL, "7770" );
 774         lo_send( listener, "/session/loaded", "ss", s.path().c_str(), s.name().c_str() );
 775 }
 776
 777 void
 778 OSC::session_exported( std::string path, std::string name ) {
 779         lo_address listener = lo_address_new( NULL, "7770" );
 780         lo_send( listener, "/session/exported", "ss", path.c_str(), name.c_str() );
 781 }
 782
 783 // end "Application Hook" Handlers //
 784
 785 /* path callbacks */
 786
 787 int
 788 OSC::current_value (const char */*path*/, const char */*types*/, lo_arg **/*argv*/, int /*argc*/, void */*data*/, void* /*user_data*/)
 789 {
 790 #if 0
 791         const char* returl;
 792
 793         if (argc < 3 || types == 0 || strlen (types) < 3 || types[0] != 's' || types[1] != 's' || types[2] != s) {
 794                 return 1;
 795         }
 796
 797         const char *returl = argv[1]->s;
 798         lo_address addr = find_or_cache_addr (returl);
 799
 800         const char *retpath = argv[2]->s;
 801
 802
 803         if (strcmp (argv[0]->s, "transport_frame") == 0) {
 804
 805                 if (session) {
 806                         lo_send (addr, retpath, "i", session->transport_frame());
 807                 }
 808
 809         } else if (strcmp (argv[0]->s, "transport_speed") == 0) {
 810
 811                 if (session) {
 812                         lo_send (addr, retpath, "i", session->transport_frame());
 813                 }
 814
 815         } else if (strcmp (argv[0]->s, "transport_locked") == 0) {
 816
 817                 if (session) {
 818                         lo_send (addr, retpath, "i", session->transport_frame());
 819                 }
 820
 821         } else if (strcmp (argv[0]->s, "punch_in") == 0) {
 822
 823                 if (session) {
 824                         lo_send (addr, retpath, "i", session->transport_frame());
 825                 }
 826
 827         } else if (strcmp (argv[0]->s, "punch_out") == 0) {
 828
 829                 if (session) {
 830                         lo_send (addr, retpath, "i", session->transport_frame());
 831                 }
 832
 833         } else if (strcmp (argv[0]->s, "rec_enable") == 0) {
 834
 835                 if (session) {
 836                         lo_send (addr, retpath, "i", session->transport_frame());
 837                 }
 838
 839         } else {
 840
 841                 /* error */
 842         }
 843 #endif
 844         return 0;
 845 }
 846
 847 int
 848 OSC::route_mute (int rid, int yn)
 849 {
 850         if (!session) return -1;
 851
 852         boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
 853
 854         if (r) {
 855                 r->set_mute (yn, this);
 856         }
 857         return 0;
 858 }
 859
 860 int
 861 OSC::route_solo (int rid, int yn)
 862 {
 863         if (!session) return -1;
 864
 865         boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
 866
 867         if (r) {
 868                 r->set_solo (yn, this);
 869         }
 870         return 0;
 871 }
 872
 873 int
 874 OSC::route_recenable (int rid, int yn)
 875 {
 876         if (!session) return -1;
 877
 878         boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
 879
 880         if (r) {
 881                 r->set_record_enabled (yn, this);
 882         }
 883         return 0;
 884 }
 885
 886 int
 887 OSC::route_set_gain_abs (int rid, float level)
 888 {
 889         if (!session) return -1;
 890
 891         boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
 892
 893         if (r) {
 894                 r->set_gain (level, this);
 895         }
 896
 897         return 0;
 898 }
 899
 900 int
 901 OSC::route_set_gain_dB (int rid, float dB)
 902 {
 903         if (!session) return -1;
 904
 905         boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
 906
 907         if (r) {
 908                 r->set_gain (dB_to_coefficient (dB), this);
 909         }
 910
 911         return 0;
 912 }
 913
 914 int
 915 OSC::route_set_pan_stereo_position (int rid, float pos)
 916 {
 917         if (!session) return -1;
 918
 919         boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
 920
 921         if (r) {
 922                 boost::shared_ptr<Panner> panner = r->panner();
 923                 if (panner) {
 924                         panner->set_stereo_position (pos);
 925                 }
 926         }
 927
 928         return 0;
 929
 930 }
 931
 932 int
 933 OSC::route_set_pan_stereo_width (int rid, float pos)
 934 {
 935         if (!session) return -1;
 936
 937         boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
 938
 939         if (r) {
 940                 boost::shared_ptr<Panner> panner = r->panner();
 941                 if (panner) {
 942                         panner->set_stereo_width (pos);
 943                 }
 944         }
 945
 946         return 0;
 947
 948 }
 949
 950 int
 951 OSC::route_plugin_parameter (int rid,int piid,int par, float val)
 952 {
 953         if (!session) {
 954                 return -1;
 955         }
 956
 957         boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
 958
 959         if (!r) {
 960                 return -1;
 961         }
 962
 963         boost::shared_ptr<Processor> redi=r->nth_processor (piid);
 964
 965         if (!redi) {
 966                 return -1;
 967         }
 968
 969         boost::shared_ptr<PluginInsert> pi;
 970
 971         if (!(pi = boost::dynamic_pointer_cast<PluginInsert>(redi))) {
 972                 return -1;
 973         }
 974
 975         boost::shared_ptr<ARDOUR::Plugin> pip = pi->plugin();
 976         bool ok=false;
 977
 978         uint32_t controlid = pip->nth_parameter (par,ok);
 979
 980         if (!ok) {
 981                 return -1;
 982         }
 983
 984         Plugin::ParameterDescriptor pd;
 985         pi->plugin()->get_parameter_descriptor (controlid,pd);
 986
 987         if (val >= pd.lower && val < pd.upper) {
 988
 989                 boost::shared_ptr<AutomationControl> c = pi->automation_control (Evoral::Parameter(PluginAutomation, 0, controlid));;
 990                 cerr << "parameter:" << redi->describe_parameter(controlid) << " val:" << val << "\n";
 991                 c->set_value (val);
 992         }
 993
 994         return 0;
 995 }
 996
 997 int
 998 OSC::route_plugin_parameter_print (int rid,int piid,int par)
 999 {
1000         if (!session) {
1001                 return -1;
1002         }
1003
1004         boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
1005
1006         if (!r) {
1007                 return -1;
1008         }
1009
1010         boost::shared_ptr<Processor> redi=r->nth_processor (piid);
1011
1012         if (!redi) {
1013                 return -1;
1014         }
1015
1016         boost::shared_ptr<PluginInsert> pi;
1017
1018         if (!(pi = boost::dynamic_pointer_cast<PluginInsert>(redi))) {
1019                 return -1;
1020         }
1021         boost::shared_ptr<ARDOUR::Plugin> pip=pi->plugin();
1022         bool ok=false;
1023
1024         uint32_t controlid = pip->nth_parameter (par,ok);
1025
1026         if (!ok) {
1027                 return -1;
1028         }
1029
1030         Plugin::ParameterDescriptor pd;
1031
1032         if (pi->plugin()->get_parameter_descriptor (controlid, pd) == 0) {
1033                 boost::shared_ptr<AutomationControl> c = pi->automation_control (Evoral::Parameter(PluginAutomation, 0, controlid));
1034
1035                 cerr << "parameter:     " << redi->describe_parameter(controlid)  << "\n";
1036                 cerr << "current value: " << c->get_value ();
1037                 cerr << "lower value:   " << pd.lower << "\n";
1038                 cerr << "upper value:   " << pd.upper << "\n";
1039         }
1040
1041         return 0;
1042 }
1043
1044 XMLNode&
1045 OSC::get_state ()
1046 {
1047         return *(new XMLNode ("OSC"));
1048 }
1049
1050 int
1051 OSC::set_state (const XMLNode&, int /*version*/)
1052 {
1053         return 0;
1054 }