gtk2_ardour/engine_dialog.cc

   1 #include <vector>
   2 #include <cmath>
   3 #include <fstream>
   4 #include <map>
   5
   6 #include <glibmm.h>
   7 #include <gtkmm/messagedialog.h>
   8 #include "pbd/xml++.h"
   9
  10 #ifdef __APPLE__
  11 #include <CoreAudio/CoreAudio.h>
  12 #include <CoreFoundation/CFString.h>
  13 #include <sys/param.h>
  14 #include <mach-o/dyld.h>
  15 #else
  16 #include <alsa/asoundlib.h>
  17 #endif
  18
  19 #include "ardour/profile.h"
  20 #include <jack/jack.h>
  21
  22 #include <gtkmm/stock.h>
  23 #include <gtkmm2ext/utils.h>
  24
  25 #include "pbd/convert.h"
  26 #include "pbd/error.h"
  27 #include "pbd/pathscanner.h"
  28
  29 #ifdef __APPLE
  30 #include <CFBundle.h>
  31 #endif
  32
  33 #include "engine_dialog.h"
  34 #include "i18n.h"
  35
  36 using namespace std;
  37 using namespace Gtk;
  38 using namespace Gtkmm2ext;
  39 using namespace PBD;
  40 using namespace Glib;
  41
  42 EngineControl::EngineControl ()
  43         : periods_adjustment (2, 2, 16, 1, 2),
  44           periods_spinner (periods_adjustment),
  45           priority_adjustment (60, 10, 90, 1, 10),
  46           priority_spinner (priority_adjustment),
  47           ports_adjustment (128, 8, 1024, 1, 16),
  48           ports_spinner (ports_adjustment),
  49           realtime_button (_("Realtime")),
  50           no_memory_lock_button (_("Do not lock memory")),
  51           unlock_memory_button (_("Unlock memory")),
  52           soft_mode_button (_("No zombies")),
  53           monitor_button (_("Provide monitor ports")),
  54           force16bit_button (_("Force 16 bit")),
  55           hw_monitor_button (_("H/W monitoring")),
  56           hw_meter_button (_("H/W metering")),
  57           verbose_output_button (_("Verbose output")),
  58           start_button (_("Start")),
  59           stop_button (_("Stop")),
  60 #ifdef __APPLE__
  61           basic_packer (5, 2),
  62           options_packer (4, 2),
  63           device_packer (4, 2)
  64 #else
  65           basic_packer (8, 2),
  66           options_packer (14, 2),
  67           device_packer (6, 2)
  68 #endif
  69 {
  70         using namespace Notebook_Helpers;
  71         Label* label;
  72         vector<string> strings;
  73         int row = 0;
  74
  75         _used = false;
  76
  77         strings.push_back (_("8000Hz"));
  78         strings.push_back (_("22050Hz"));
  79         strings.push_back (_("44100Hz"));
  80         strings.push_back (_("48000Hz"));
  81         strings.push_back (_("88200Hz"));
  82         strings.push_back (_("96000Hz"));
  83         strings.push_back (_("192000Hz"));
  84         set_popdown_strings (sample_rate_combo, strings);
  85         sample_rate_combo.set_active_text ("48000Hz");
  86
  87         strings.clear ();
  88         strings.push_back ("32");
  89         strings.push_back ("64");
  90         strings.push_back ("128");
  91         strings.push_back ("256");
  92         strings.push_back ("512");
  93         strings.push_back ("1024");
  94         strings.push_back ("2048");
  95         strings.push_back ("4096");
  96         strings.push_back ("8192");
  97         set_popdown_strings (period_size_combo, strings);
  98         period_size_combo.set_active_text ("1024");
  99
 100         strings.clear ();
 101         strings.push_back (_("None"));
 102         strings.push_back (_("Triangular"));
 103         strings.push_back (_("Rectangular"));
 104         strings.push_back (_("Shaped"));
 105         set_popdown_strings (dither_mode_combo, strings);
 106         dither_mode_combo.set_active_text (_("None"));
 107
 108         /* basic parameters */
 109
 110         basic_packer.set_spacings (6);
 111
 112         strings.clear ();
 113 #ifdef __APPLE__
 114         strings.push_back (X_("CoreAudio"));
 115 #else
 116         strings.push_back (X_("ALSA"));
 117         strings.push_back (X_("OSS"));
 118         strings.push_back (X_("FFADO"));
 119 #endif
 120         strings.push_back (X_("NetJACK"));
 121         strings.push_back (X_("Dummy"));
 122         set_popdown_strings (driver_combo, strings);
 123         driver_combo.set_active_text (strings.front());
 124
 125         driver_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::driver_changed));
 126         driver_changed ();
 127
 128         strings.clear ();
 129         strings.push_back (_("Playback/Recording on 1 Device"));
 130         strings.push_back (_("Playback/Recording on 2 Devices"));
 131         strings.push_back (_("Playback only"));
 132         strings.push_back (_("Recording only"));
 133         set_popdown_strings (audio_mode_combo, strings);
 134         audio_mode_combo.set_active_text (strings.front());
 135
 136         audio_mode_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::audio_mode_changed));
 137         audio_mode_changed ();
 138
 139         row = 0;
 140
 141         label = manage (new Label (_("Driver")));
 142         basic_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 143         basic_packer.attach (driver_combo, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 144         row++;
 145
 146         label = manage (new Label (_("Interface")));
 147         basic_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 148         basic_packer.attach (interface_combo, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 149         row++;
 150
 151         label = manage (new Label (_("Sample Rate")));
 152         basic_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 153         basic_packer.attach (sample_rate_combo, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 154         row++;
 155
 156         label = manage (new Label (_("Buffer size")));
 157         basic_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 158         basic_packer.attach (period_size_combo, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 159         row++;
 160
 161 #ifndef __APPLE__
 162         label = manage (new Label (_("Number of buffers")));
 163         basic_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 164         basic_packer.attach (periods_spinner, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 165         periods_spinner.set_value (2);
 166         row++;
 167 #endif
 168
 169         label = manage (new Label (_("Approximate latency")));
 170         label->set_alignment (0.0, 0.5);
 171         basic_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 172         basic_packer.attach (latency_label, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 173         row++;
 174
 175         sample_rate_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::redisplay_latency));
 176         periods_adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &EngineControl::redisplay_latency));
 177         period_size_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::redisplay_latency));
 178         redisplay_latency();
 179         row++;
 180         /* no audio mode with CoreAudio, its duplex or nuthin' */
 181
 182 #ifndef __APPLE__
 183         label = manage (new Label (_("Audio Mode")));
 184         basic_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 185         basic_packer.attach (audio_mode_combo, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 186         row++;
 187 #endif
 188
 189         interface_combo.set_size_request (125, -1);
 190         input_device_combo.set_size_request (125, -1);
 191         output_device_combo.set_size_request (125, -1);
 192
 193         /*
 194
 195         if (engine_running()) {
 196                 start_button.set_sensitive (false);
 197         } else {
 198                 stop_button.set_sensitive (false);
 199         }
 200
 201         start_button.signal_clicked().connect (sigc::mem_fun (*this, &EngineControl::start_engine));
 202         stop_button.signal_clicked().connect (sigc::mem_fun (*this, &EngineControl::start_engine));
 203         */
 204
 205         button_box.pack_start (start_button, false, false);
 206         button_box.pack_start (stop_button, false, false);
 207
 208         // basic_packer.attach (button_box, 0, 2, 8, 9, FILL|EXPAND, (AttachOptions) 0);
 209
 210         /* options */
 211
 212         options_packer.set_spacings (6);
 213         row = 0;
 214
 215         options_packer.attach (realtime_button, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 216         ++row;
 217
 218         realtime_button.set_active (true);
 219         realtime_button.signal_toggled().connect (sigc::mem_fun (*this, &EngineControl::realtime_changed));
 220         realtime_changed ();
 221
 222 #if PROVIDE_TOO_MANY_OPTIONS
 223
 224 #ifndef __APPLE__
 225         label = manage (new Label (_("Realtime Priority")));
 226         label->set_alignment (1.0, 0.5);
 227         options_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 228         options_packer.attach (priority_spinner, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 229         ++row;
 230         priority_spinner.set_value (60);
 231
 232         options_packer.attach (no_memory_lock_button, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 233         ++row;
 234         options_packer.attach (unlock_memory_button, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 235         ++row;
 236         options_packer.attach (soft_mode_button, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 237         ++row;
 238         options_packer.attach (monitor_button, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 239         ++row;
 240         options_packer.attach (force16bit_button, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 241         ++row;
 242         options_packer.attach (hw_monitor_button, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 243         ++row;
 244         options_packer.attach (hw_meter_button, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 245         ++row;
 246         options_packer.attach (verbose_output_button, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 247         ++row;
 248 #else
 249         options_packer.attach (verbose_output_button, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 250         ++row;
 251 #endif
 252
 253         strings.clear ();
 254         strings.push_back (_("Ignore"));
 255         strings.push_back ("500 msec");
 256         strings.push_back ("1 sec");
 257         strings.push_back ("2 sec");
 258         strings.push_back ("10 sec");
 259         set_popdown_strings (timeout_combo, strings);
 260         timeout_combo.set_active_text (strings.front ());
 261
 262         label = manage (new Label (_("Client timeout")));
 263         label->set_alignment (1.0, 0.5);
 264         options_packer.attach (timeout_combo, 1, 2, row, row + 1, FILL|EXPAND, AttachOptions(0));
 265         options_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 266         ++row;
 267
 268 #endif /* PROVIDE_TOO_MANY_OPTIONS */
 269         label = manage (new Label (_("Number of ports")));
 270         label->set_alignment (1.0, 0.5);
 271         options_packer.attach (ports_spinner, 1, 2, row, row + 1, FILL|EXPAND, AttachOptions(0));
 272         options_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 273         ++row;
 274
 275 #ifndef __APPLE__
 276         label = manage (new Label (_("Dither")));
 277         label->set_alignment (1.0, 0.5);
 278         options_packer.attach (dither_mode_combo, 1, 2, row, row + 1, FILL|EXPAND, AttachOptions(0));
 279         options_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 280         ++row;
 281 #endif
 282
 283         find_jack_servers (server_strings);
 284
 285         if (server_strings.empty()) {
 286                 fatal << _("No JACK server found anywhere on this system. Please install JACK and restart") << endmsg;
 287                 /*NOTREACHED*/
 288         }
 289
 290         set_popdown_strings (serverpath_combo, server_strings);
 291         serverpath_combo.set_active_text (server_strings.front());
 292
 293         if (server_strings.size() > 1) {
 294                 label = manage (new Label (_("Server:")));
 295                 options_packer.attach (*label, 0, 1, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 296                 label->set_alignment (0.0, 0.5);
 297                 options_packer.attach (serverpath_combo, 1, 2, row, row + 1, FILL|EXPAND, (AttachOptions) 0);
 298                 ++row;
 299         }
 300
 301         /* device settings */
 302
 303         device_packer.set_spacings (6);
 304         row = 0;
 305
 306 #ifndef __APPLE__
 307         label = manage (new Label (_("Input device")));
 308         label->set_alignment (1.0, 0.5);
 309         device_packer.attach (*label, 0, 1, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 310         device_packer.attach (input_device_combo, 1, 2, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 311         ++row;
 312         label = manage (new Label (_("Output device")));
 313         label->set_alignment (1.0, 0.5);
 314         device_packer.attach (*label, 0, 1, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 315         device_packer.attach (output_device_combo, 1, 2, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 316         ++row;
 317 #endif
 318         label = manage (new Label (_("Input channels")));
 319         label->set_alignment (1.0, 0.5);
 320         device_packer.attach (*label, 0, 1, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 321         device_packer.attach (input_channels, 1, 2, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 322         ++row;
 323         label = manage (new Label (_("Output channels")));
 324         label->set_alignment (1.0, 0.5);
 325         device_packer.attach (*label, 0, 1, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 326         device_packer.attach (output_channels, 1, 2, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 327         ++row;
 328         label = manage (new Label (_("Hardware input latency (samples)")));
 329         label->set_alignment (1.0, 0.5);
 330         device_packer.attach (*label, 0, 1, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 331         device_packer.attach (input_latency, 1, 2, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 332         ++row;
 333         label = manage (new Label (_("Hardware output latency (samples)")));
 334         label->set_alignment (1.0, 0.5);
 335         device_packer.attach (*label, 0, 1, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 336         device_packer.attach (output_latency, 1, 2, row, row+1, FILL|EXPAND, (AttachOptions) 0);
 337         ++row;
 338
 339         basic_hbox.pack_start (basic_packer, false, false);
 340         options_hbox.pack_start (options_packer, false, false);
 341
 342         device_packer.set_border_width (12);
 343         options_packer.set_border_width (12);
 344         basic_packer.set_border_width (12);
 345
 346         notebook.pages().push_back (TabElem (basic_hbox, _("Device")));
 347         notebook.pages().push_back (TabElem (options_hbox, _("Options")));
 348         notebook.pages().push_back (TabElem (device_packer, _("Advanced")));
 349         notebook.set_border_width (12);
 350
 351         set_border_width (12);
 352         pack_start (notebook);
 353 }
 354
 355 EngineControl::~EngineControl ()
 356 {
 357
 358 }
 359
 360 void
 361 EngineControl::build_command_line (vector<string>& cmd)
 362 {
 363         string str;
 364         string driver;
 365         bool using_oss = false;
 366         bool using_alsa = false;
 367         bool using_coreaudio = false;
 368         bool using_netjack = false;
 369         bool using_ffado = false;
 370         bool using_dummy = false;
 371
 372         /* first, path to jackd */
 373
 374         cmd.push_back (serverpath_combo.get_active_text ());
 375
 376         /* now jackd arguments */
 377
 378         str = timeout_combo.get_active_text ();
 379         if (str != _("Ignore")) {
 380                 double secs = 0;
 381                 uint32_t msecs;
 382                 secs = atof (str);
 383                 msecs = (uint32_t) floor (secs * 1000.0);
 384                 if (msecs > 0) {
 385                         cmd.push_back ("-t");
 386                         cmd.push_back (to_string (msecs, std::dec));
 387                 }
 388         }
 389
 390         if (no_memory_lock_button.get_active()) {
 391                 cmd.push_back ("-m"); /* no munlock */
 392         }
 393
 394         cmd.push_back ("-p"); /* port max */
 395         cmd.push_back (to_string ((uint32_t) floor (ports_spinner.get_value()), std::dec));
 396
 397         if (realtime_button.get_active()) {
 398                 cmd.push_back ("-R");
 399                 cmd.push_back ("-P");
 400                 cmd.push_back (to_string ((uint32_t) floor (priority_spinner.get_value()), std::dec));
 401         }
 402
 403         if (unlock_memory_button.get_active()) {
 404                 cmd.push_back ("-u");
 405         }
 406
 407         if (verbose_output_button.get_active()) {
 408                 cmd.push_back ("-v");
 409         }
 410
 411         /* now add fixed arguments (not user-selectable) */
 412
 413         cmd.push_back ("-T"); // temporary */
 414
 415         /* next the driver */
 416
 417         cmd.push_back ("-d");
 418
 419         driver = driver_combo.get_active_text ();
 420         if (driver == X_("ALSA")) {
 421                 using_alsa = true;
 422                 cmd.push_back ("alsa");
 423         } else if (driver == X_("OSS")) {
 424                 using_oss = true;
 425                 cmd.push_back ("oss");
 426         } else if (driver == X_("CoreAudio")) {
 427                 using_coreaudio = true;
 428                 cmd.push_back ("coreaudio");
 429         } else if (driver == X_("NetJACK")) {
 430                 using_netjack = true;
 431                 cmd.push_back ("netjack");
 432         } else if (driver == X_("FFADO")) {
 433                 using_ffado = true;
 434
 435                 /* do this until FFADO becomes the standard */
 436
 437                 char* hack = getenv ("ARDOUR_FIREWIRE_DRIVER_NAME");
 438
 439                 if (hack) {
 440                         cmd.push_back (hack);
 441                 } else {
 442                         cmd.push_back ("freebob");
 443                 }
 444
 445         } else if ( driver == X_("Dummy")) {
 446                 using_dummy = true;
 447                 cmd.push_back ("dummy");
 448         }
 449
 450         /* driver arguments */
 451
 452         if (!using_coreaudio) {
 453                 str = audio_mode_combo.get_active_text();
 454
 455                 if (str == _("Playback/Recording on 1 Device")) {
 456
 457                         /* relax */
 458
 459                 } else if (str == _("Playback/Recording on 2 Devices")) {
 460
 461                         string input_device = get_device_name (driver, input_device_combo.get_active_text());
 462                         string output_device = get_device_name (driver, output_device_combo.get_active_text());
 463
 464                         if (input_device.empty() || output_device.empty()) {
 465                                 cmd.clear ();
 466                                 return;
 467                         }
 468
 469                         cmd.push_back ("-C");
 470                         cmd.push_back (input_device);
 471                         cmd.push_back ("-P");
 472                         cmd.push_back (output_device);
 473
 474                 } else if (str == _("Playback only")) {
 475                         cmd.push_back ("-P");
 476                 } else if (str == _("Recording only")) {
 477                         cmd.push_back ("-C");
 478                 }
 479
 480                 if (! using_dummy ) {
 481                         cmd.push_back ("-n");
 482                         cmd.push_back (to_string ((uint32_t) floor (periods_spinner.get_value()), std::dec));
 483                 }
 484         }
 485
 486         cmd.push_back ("-r");
 487         cmd.push_back (to_string (get_rate(), std::dec));
 488
 489         cmd.push_back ("-p");
 490         cmd.push_back (period_size_combo.get_active_text());
 491
 492         if (using_alsa) {
 493
 494                 if (audio_mode_combo.get_active_text() != _("Playback/Recording on 2 Devices")) {
 495
 496                         string device = get_device_name (driver, interface_combo.get_active_text());
 497                         if (device.empty()) {
 498                                 cmd.clear ();
 499                                 return;
 500                         }
 501
 502                         cmd.push_back ("-d");
 503                         cmd.push_back (device);
 504                 }
 505
 506                 if (hw_meter_button.get_active()) {
 507                         cmd.push_back ("-M");
 508                 }
 509
 510                 if (hw_monitor_button.get_active()) {
 511                         cmd.push_back ("-H");
 512                 }
 513
 514                 str = dither_mode_combo.get_active_text();
 515
 516                 if (str == _("None")) {
 517                 } else if (str == _("Triangular")) {
 518                         cmd.push_back ("-z triangular");
 519                 } else if (str == _("Rectangular")) {
 520                         cmd.push_back ("-z rectangular");
 521                 } else if (str == _("Shaped")) {
 522                         cmd.push_back ("-z shaped");
 523                 }
 524
 525                 if (force16bit_button.get_active()) {
 526                         cmd.push_back ("-S");
 527                 }
 528
 529                 if (soft_mode_button.get_active()) {
 530                         cmd.push_back ("-s");
 531                 }
 532
 533         } else if (using_coreaudio) {
 534
 535 #ifdef __APPLE__
 536                 // note: older versions of the CoreAudio JACK backend use -n instead of -d here
 537
 538                 string device = get_device_name (driver, interface_combo.get_active_text());
 539                 if (device.empty()) {
 540                         cmd.clear ();
 541                         return;
 542                 }
 543
 544                 cmd.push_back ("-d");
 545                 cmd.push_back (device);
 546 #endif
 547
 548         } else if (using_oss) {
 549
 550         } else if (using_netjack) {
 551
 552         }
 553 }
 554
 555 bool
 556 EngineControl::engine_running ()
 557 {
 558         jack_status_t status;
 559         jack_client_t* c = jack_client_open ("ardourprobe", JackNoStartServer, &status);
 560
 561         if (status == 0) {
 562                 jack_client_close (c);
 563                 return true;
 564         }
 565         return false;
 566 }
 567
 568 int
 569 EngineControl::setup_engine ()
 570 {
 571         vector<string> args;
 572         std::string cwd = "/tmp";
 573
 574         build_command_line (args);
 575
 576         if (args.empty()) {
 577                 return 1; // try again
 578         }
 579
 580         Glib::ustring jackdrc_path = Glib::get_home_dir();
 581         jackdrc_path += "/.jackdrc";
 582
 583         ofstream jackdrc (jackdrc_path.c_str());
 584         if (!jackdrc) {
 585                 error << string_compose (_("cannot open JACK rc file %1 to store parameters"), jackdrc_path) << endmsg;
 586                 return -1;
 587         }
 588         cerr << "JACK COMMAND: ";
 589         for (vector<string>::iterator i = args.begin(); i != args.end(); ++i) {
 590                 cerr << (*i) << ' ';
 591                 jackdrc << (*i) << ' ';
 592         }
 593         cerr << endl;
 594         jackdrc << endl;
 595         jackdrc.close ();
 596
 597         _used = true;
 598
 599         return 0;
 600 }
 601
 602 void
 603 EngineControl::realtime_changed ()
 604 {
 605 #ifndef __APPLE__
 606         priority_spinner.set_sensitive (realtime_button.get_active());
 607 #endif
 608 }
 609
 610 void
 611 EngineControl::enumerate_devices (const string& driver)
 612 {
 613         /* note: case matters for the map keys */
 614
 615         if (driver == "CoreAudio") {
 616 #ifdef __APPLE__
 617                 devices[driver] = enumerate_coreaudio_devices ();
 618 #endif
 619
 620 #ifndef __APPLE__
 621         } else if (driver == "ALSA") {
 622                 devices[driver] = enumerate_alsa_devices ();
 623         } else if (driver == "FFADO") {
 624                 devices[driver] = enumerate_ffado_devices ();
 625         } else if (driver == "OSS") {
 626                 devices[driver] = enumerate_oss_devices ();
 627         } else if (driver == "Dummy") {
 628                 devices[driver] = enumerate_dummy_devices ();
 629         } else if (driver == "NetJACK") {
 630                 devices[driver] = enumerate_netjack_devices ();
 631         }
 632 #else
 633         }
 634 #endif
 635 }
 636
 637 #ifdef __APPLE__
 638 static OSStatus
 639 getDeviceUIDFromID( AudioDeviceID id, char *name, size_t nsize)
 640 {
 641         UInt32 size = sizeof(CFStringRef);
 642         CFStringRef UI;
 643         OSStatus res = AudioDeviceGetProperty(id, 0, false,
 644                 kAudioDevicePropertyDeviceUID, &size, &UI);
 645         if (res == noErr)
 646                 CFStringGetCString(UI,name,nsize,CFStringGetSystemEncoding());
 647         CFRelease(UI);
 648         return res;
 649 }
 650
 651 vector<string>
 652 EngineControl::enumerate_coreaudio_devices ()
 653 {
 654         vector<string> devs;
 655
 656         // Find out how many Core Audio devices are there, if any...
 657         // (code snippet gently "borrowed" from St?hane Letz jackdmp;)
 658         OSStatus err;
 659         Boolean isWritable;
 660         size_t outSize = sizeof(isWritable);
 661
 662         backend_devs.clear ();
 663
 664         err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices,
 665                                            &outSize, &isWritable);
 666         if (err == noErr) {
 667                 // Calculate the number of device available...
 668                 int numCoreDevices = outSize / sizeof(AudioDeviceID);
 669                 // Make space for the devices we are about to get...
 670                 AudioDeviceID *coreDeviceIDs = new AudioDeviceID [numCoreDevices];
 671                 err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices,
 672                                                &outSize, (void *) coreDeviceIDs);
 673                 if (err == noErr) {
 674                         // Look for the CoreAudio device name...
 675                         char coreDeviceName[256];
 676                         size_t nameSize;
 677
 678                         for (int i = 0; i < numCoreDevices; i++) {
 679
 680                                 nameSize = sizeof (coreDeviceName);
 681
 682                                 /* enforce duplex devices only */
 683
 684                                 err = AudioDeviceGetPropertyInfo(coreDeviceIDs[i],
 685                                                                  0, true, kAudioDevicePropertyStreams,
 686                                                                  &outSize, &isWritable);
 687
 688                                 if (err != noErr || outSize == 0) {
 689                                         continue;
 690                                 }
 691
 692                                 err = AudioDeviceGetPropertyInfo(coreDeviceIDs[i],
 693                                                                  0, false, kAudioDevicePropertyStreams,
 694                                                                  &outSize, &isWritable);
 695
 696                                 if (err != noErr || outSize == 0) {
 697                                         continue;
 698                                 }
 699
 700                                 err = AudioDeviceGetPropertyInfo(coreDeviceIDs[i],
 701                                                                  0, true, kAudioDevicePropertyDeviceName,
 702                                                                  &outSize, &isWritable);
 703                                 if (err == noErr) {
 704                                         err = AudioDeviceGetProperty(coreDeviceIDs[i],
 705                                                                      0, true, kAudioDevicePropertyDeviceName,
 706                                                                      &nameSize, (void *) coreDeviceName);
 707                                         if (err == noErr) {
 708                                                 char drivername[128];
 709
 710                                                 // this returns the unique id for the device
 711                                                 // that must be used on the commandline for jack
 712
 713                                                 if (getDeviceUIDFromID(coreDeviceIDs[i], drivername, sizeof (drivername)) == noErr) {
 714                                                         devs.push_back (coreDeviceName);
 715                                                         backend_devs.push_back (drivername);
 716                                                 }
 717                                         }
 718                                 }
 719                         }
 720                 }
 721                 delete [] coreDeviceIDs;
 722         }
 723
 724
 725         if (devs.size() == 0) {
 726                 MessageDialog msg (_("\
 727 You do not have any audio devices capable of\n\
 728 simultaneous playback and recording.\n\n\
 729 Please use Applications -> Utilities -> Audio MIDI Setup\n\
 730 to create an \"aggregrate\" device, or install a suitable\n\
 731 audio interface.\n\n\
 732 Please send email to Apple and ask them why new Macs\n\
 733 have no duplex audio device.\n\n\
 734 Alternatively, if you really want just playback\n\
 735 or recording but not both, start JACK before running\n\
 736 Ardour and choose the relevant device then."
 737                                            ),
 738                                    true, Gtk::MESSAGE_ERROR, Gtk::BUTTONS_OK);
 739                 msg.set_title (_("No suitable audio devices"));
 740                 msg.set_position (Gtk::WIN_POS_MOUSE);
 741                 msg.run ();
 742                 exit (1);
 743         }
 744
 745
 746         return devs;
 747 }
 748 #else
 749 vector<string>
 750 EngineControl::enumerate_alsa_devices ()
 751 {
 752         vector<string> devs;
 753
 754         snd_ctl_t *handle;
 755         snd_ctl_card_info_t *info;
 756         snd_pcm_info_t *pcminfo;
 757         snd_ctl_card_info_alloca(&info);
 758         snd_pcm_info_alloca(&pcminfo);
 759         string devname;
 760         int cardnum = -1;
 761         int device = -1;
 762
 763         backend_devs.clear ();
 764
 765         while (snd_card_next (&cardnum) >= 0 && cardnum >= 0) {
 766
 767                 devname = "hw:";
 768                 devname += to_string (cardnum, std::dec);
 769
 770                 if (snd_ctl_open (&handle, devname.c_str(), 0) >= 0 && snd_ctl_card_info (handle, info) >= 0) {
 771
 772                         while (snd_ctl_pcm_next_device (handle, &device) >= 0 && device >= 0) {
 773
 774                                 bool have_playback = false;
 775                                 bool have_capture = false;
 776
 777                                 /* find duplex devices only */
 778
 779                                 snd_pcm_info_set_device (pcminfo, device);
 780                                 snd_pcm_info_set_subdevice (pcminfo, 0);
 781                                 snd_pcm_info_set_stream (pcminfo, SND_PCM_STREAM_CAPTURE);
 782
 783                                 if (snd_ctl_pcm_info (handle, pcminfo) >= 0) {
 784                                         have_capture = true;
 785                                 }
 786
 787                                 snd_pcm_info_set_device (pcminfo, device);
 788                                 snd_pcm_info_set_subdevice (pcminfo, 0);
 789                                 snd_pcm_info_set_stream (pcminfo, SND_PCM_STREAM_PLAYBACK);
 790
 791                                 if (snd_ctl_pcm_info (handle, pcminfo) >= 0) {
 792                                         have_playback = true;
 793                                 }
 794
 795                                 if (have_capture && have_playback) {
 796                                         devs.push_back (snd_pcm_info_get_name (pcminfo));
 797                                         devname += ',';
 798                                         devname += to_string (device, std::dec);
 799                                         backend_devs.push_back (devname);
 800                                 }
 801                         }
 802
 803                         snd_ctl_close(handle);
 804                 }
 805         }
 806
 807         return devs;
 808 }
 809
 810 vector<string>
 811 EngineControl::enumerate_ffado_devices ()
 812 {
 813         vector<string> devs;
 814         backend_devs.clear ();
 815         return devs;
 816 }
 817
 818 vector<string>
 819 EngineControl::enumerate_freebob_devices ()
 820 {
 821         vector<string> devs;
 822         return devs;
 823 }
 824 vector<string>
 825 EngineControl::enumerate_oss_devices ()
 826 {
 827         vector<string> devs;
 828         return devs;
 829 }
 830 vector<string>
 831 EngineControl::enumerate_dummy_devices ()
 832 {
 833         vector<string> devs;
 834         return devs;
 835 }
 836 vector<string>
 837 EngineControl::enumerate_netjack_devices ()
 838 {
 839         vector<string> devs;
 840         return devs;
 841 }
 842 #endif
 843
 844 void
 845 EngineControl::driver_changed ()
 846 {
 847         string driver = driver_combo.get_active_text();
 848         string::size_type maxlen = 0;
 849         int maxindex = -1;
 850         int n = 0;
 851
 852         enumerate_devices (driver);
 853
 854         vector<string>& strings = devices[driver];
 855
 856         if (strings.empty() && driver != "FFADO" && driver != "Dummy") {
 857                 error << string_compose (_("No devices found for driver \"%1\""), driver) << endmsg;
 858                 return;
 859         }
 860
 861         for (vector<string>::iterator i = strings.begin(); i != strings.end(); ++i, ++n) {
 862                 if ((*i).length() > maxlen) {
 863                         maxlen = (*i).length();
 864                         maxindex = n;
 865                 }
 866         }
 867
 868         set_popdown_strings (interface_combo, strings);
 869         set_popdown_strings (input_device_combo, strings);
 870         set_popdown_strings (output_device_combo, strings);
 871
 872         if (!strings.empty()) {
 873                 interface_combo.set_active_text (strings.front());
 874                 input_device_combo.set_active_text (strings.front());
 875                 output_device_combo.set_active_text (strings.front());
 876         }
 877
 878         if (driver == "ALSA") {
 879                 soft_mode_button.set_sensitive (true);
 880                 force16bit_button.set_sensitive (true);
 881                 hw_monitor_button.set_sensitive (true);
 882                 hw_meter_button.set_sensitive (true);
 883                 monitor_button.set_sensitive (true);
 884         } else {
 885                 soft_mode_button.set_sensitive (false);
 886                 force16bit_button.set_sensitive (false);
 887                 hw_monitor_button.set_sensitive (false);
 888                 hw_meter_button.set_sensitive (false);
 889                 monitor_button.set_sensitive (false);
 890         }
 891 }
 892
 893 uint32_t
 894 EngineControl::get_rate ()
 895 {
 896         return atoi (sample_rate_combo.get_active_text ());
 897 }
 898
 899 void
 900 EngineControl::redisplay_latency ()
 901 {
 902         uint32_t rate = get_rate();
 903 #ifdef __APPLE_
 904         float periods = 2;
 905 #else
 906         float periods = periods_adjustment.get_value();
 907 #endif
 908         float period_size = atof (period_size_combo.get_active_text());
 909
 910         char buf[32];
 911         snprintf (buf, sizeof(buf), "%.1fmsec", (periods * period_size) / (rate/1000.0));
 912
 913         latency_label.set_text (buf);
 914 }
 915
 916 void
 917 EngineControl::audio_mode_changed ()
 918 {
 919         Glib::ustring str = audio_mode_combo.get_active_text();
 920
 921         if (str == _("Playback/Recording on 1 Device")) {
 922                 input_device_combo.set_sensitive (false);
 923                 output_device_combo.set_sensitive (false);
 924         } else if (str == _("Playback/Recording on 2 Devices")) {
 925                 input_device_combo.set_sensitive (true);
 926                 output_device_combo.set_sensitive (true);
 927         } else if (str == _("Playback only")) {
 928                 output_device_combo.set_sensitive (true);
 929         } else if (str == _("Recording only")) {
 930                 input_device_combo.set_sensitive (true);
 931         }
 932 }
 933
 934 static bool jack_server_filter(const string& str, void */*arg*/)
 935 {
 936    return str == "jackd" || str == "jackdmp";
 937 }
 938
 939 void
 940 EngineControl::find_jack_servers (vector<string>& strings)
 941 {
 942 #ifdef __APPLE__
 943         /* this magic lets us finds the path to the OSX bundle, and then
 944            we infer JACK's location from there
 945         */
 946
 947         char execpath[MAXPATHLEN+1];
 948         uint32_t pathsz = sizeof (execpath);
 949
 950         _NSGetExecutablePath (execpath, &pathsz);
 951
 952         string path (Glib::path_get_dirname (execpath));
 953         path += "/jackd";
 954
 955         if (Glib::file_test (path, FILE_TEST_EXISTS)) {
 956                 strings.push_back (path);
 957         }
 958
 959         if (getenv ("ARDOUR_WITH_JACK")) {
 960                 /* no other options - only use the JACK we supply */
 961                 if (strings.empty()) {
 962                         fatal << string_compose (_("JACK appears to be missing from the %1 bundle"), PROGRAM_NAME) << endmsg;
 963                         /*NOTREACHED*/
 964                 }
 965                 return;
 966         }
 967 #else
 968         string path;
 969 #endif
 970
 971         PathScanner scanner;
 972         vector<string *> *jack_servers;
 973         std::map<string,int> un;
 974         char *p;
 975         bool need_minimal_path = false;
 976
 977         p = getenv ("PATH");
 978
 979         if (p && *p) {
 980                 path = p;
 981         } else {
 982                 need_minimal_path = true;
 983         }
 984
 985 #ifdef __APPLE__
 986         // many mac users don't have PATH set up to include
 987         // likely installed locations of JACK
 988         need_minimal_path = true;
 989 #endif
 990
 991         if (need_minimal_path) {
 992                 if (path.empty()) {
 993                         path = "/usr/bin:/bin:/usr/local/bin:/opt/local/bin";
 994                 } else {
 995                         path += ":/usr/local/bin:/opt/local/bin";
 996                 }
 997         }
 998
 999 #ifdef __APPLE__
1000         // push it back into the environment so that auto-started JACK can find it.
1001         // XXX why can't we just expect OS X users to have PATH set correctly? we can't ...
1002         setenv ("PATH", path.c_str(), 1);
1003 #endif
1004
1005         jack_servers = scanner (path, jack_server_filter, 0, false, true);
1006
1007         vector<string *>::iterator iter;
1008
1009         for (iter = jack_servers->begin(); iter != jack_servers->end(); iter++) {
1010                 string p = **iter;
1011
1012                 if (un[p]++ == 0) {
1013                         strings.push_back(p);
1014                 }
1015         }
1016 }
1017
1018
1019 string
1020 EngineControl::get_device_name (const string& driver, const string& human_readable)
1021 {
1022         vector<string>::iterator n;
1023         vector<string>::iterator i;
1024
1025         if (human_readable.empty()) {
1026                 /* this can happen if the user's .ardourrc file has a device name from
1027                    another computer system in it
1028                 */
1029                 MessageDialog msg (_("You need to choose an audio device first."));
1030                 msg.run ();
1031                 return string();
1032         }
1033
1034         if (backend_devs.empty()) {
1035                 return human_readable;
1036         }
1037
1038         for (i = devices[driver].begin(), n = backend_devs.begin(); i != devices[driver].end(); ++i, ++n) {
1039                 if (human_readable == (*i)) {
1040                         return (*n);
1041                 }
1042         }
1043
1044         if (i == devices[driver].end()) {
1045                 warning << string_compose (_("Audio device \"%1\" not known on this computer."), human_readable) << endmsg;
1046         }
1047
1048         return string();
1049 }
1050
1051 XMLNode&
1052 EngineControl::get_state ()
1053 {
1054         XMLNode* root = new XMLNode ("AudioSetup");
1055         XMLNode* child;
1056         Glib::ustring path;
1057
1058         child = new XMLNode ("periods");
1059         child->add_property ("val", to_string (periods_adjustment.get_value(), std::dec));
1060         root->add_child_nocopy (*child);
1061
1062         child = new XMLNode ("priority");
1063         child->add_property ("val", to_string (priority_adjustment.get_value(), std::dec));
1064         root->add_child_nocopy (*child);
1065
1066         child = new XMLNode ("ports");
1067         child->add_property ("val", to_string (ports_adjustment.get_value(), std::dec));
1068         root->add_child_nocopy (*child);
1069
1070         child = new XMLNode ("inchannels");
1071         child->add_property ("val", to_string (input_channels.get_value(), std::dec));
1072         root->add_child_nocopy (*child);
1073
1074         child = new XMLNode ("outchannels");
1075         child->add_property ("val", to_string (output_channels.get_value(), std::dec));
1076         root->add_child_nocopy (*child);
1077
1078         child = new XMLNode ("inlatency");
1079         child->add_property ("val", to_string (input_latency.get_value(), std::dec));
1080         root->add_child_nocopy (*child);
1081
1082         child = new XMLNode ("outlatency");
1083         child->add_property ("val", to_string (output_latency.get_value(), std::dec));
1084         root->add_child_nocopy (*child);
1085
1086         child = new XMLNode ("realtime");
1087         child->add_property ("val", to_string (realtime_button.get_active(), std::dec));
1088         root->add_child_nocopy (*child);
1089
1090         child = new XMLNode ("nomemorylock");
1091         child->add_property ("val", to_string (no_memory_lock_button.get_active(), std::dec));
1092         root->add_child_nocopy (*child);
1093
1094         child = new XMLNode ("unlockmemory");
1095         child->add_property ("val", to_string (unlock_memory_button.get_active(), std::dec));
1096         root->add_child_nocopy (*child);
1097
1098         child = new XMLNode ("softmode");
1099         child->add_property ("val", to_string (soft_mode_button.get_active(), std::dec));
1100         root->add_child_nocopy (*child);
1101
1102         child = new XMLNode ("force16bit");
1103         child->add_property ("val", to_string (force16bit_button.get_active(), std::dec));
1104         root->add_child_nocopy (*child);
1105
1106         child = new XMLNode ("hwmonitor");
1107         child->add_property ("val", to_string (hw_monitor_button.get_active(), std::dec));
1108         root->add_child_nocopy (*child);
1109
1110         child = new XMLNode ("hwmeter");
1111         child->add_property ("val", to_string (hw_meter_button.get_active(), std::dec));
1112         root->add_child_nocopy (*child);
1113
1114         child = new XMLNode ("verbose");
1115         child->add_property ("val", to_string (verbose_output_button.get_active(), std::dec));
1116         root->add_child_nocopy (*child);
1117
1118         child = new XMLNode ("samplerate");
1119         child->add_property ("val", sample_rate_combo.get_active_text());
1120         root->add_child_nocopy (*child);
1121
1122         child = new XMLNode ("periodsize");
1123         child->add_property ("val", period_size_combo.get_active_text());
1124         root->add_child_nocopy (*child);
1125
1126         child = new XMLNode ("serverpath");
1127         child->add_property ("val", serverpath_combo.get_active_text());
1128         root->add_child_nocopy (*child);
1129
1130         child = new XMLNode ("driver");
1131         child->add_property ("val", driver_combo.get_active_text());
1132         root->add_child_nocopy (*child);
1133
1134         child = new XMLNode ("interface");
1135         child->add_property ("val", interface_combo.get_active_text());
1136         root->add_child_nocopy (*child);
1137
1138         child = new XMLNode ("timeout");
1139         child->add_property ("val", timeout_combo.get_active_text());
1140         root->add_child_nocopy (*child);
1141
1142         child = new XMLNode ("dither");
1143         child->add_property ("val", dither_mode_combo.get_active_text());
1144         root->add_child_nocopy (*child);
1145
1146         child = new XMLNode ("audiomode");
1147         child->add_property ("val", audio_mode_combo.get_active_text());
1148         root->add_child_nocopy (*child);
1149
1150         child = new XMLNode ("inputdevice");
1151         child->add_property ("val", input_device_combo.get_active_text());
1152         root->add_child_nocopy (*child);
1153
1154         child = new XMLNode ("outputdevice");
1155         child->add_property ("val", output_device_combo.get_active_text());
1156         root->add_child_nocopy (*child);
1157
1158         return *root;
1159 }
1160
1161 void
1162 EngineControl::set_state (const XMLNode& root)
1163 {
1164         XMLNodeList          clist;
1165         XMLNodeConstIterator citer;
1166         XMLNode* child;
1167         XMLProperty* prop = NULL;
1168         bool using_dummy = false;
1169
1170         int val;
1171         string strval;
1172
1173         if ( (child = root.child ("driver"))){
1174                 prop = child->property("val");
1175                 if (prop && (prop->value() == "Dummy") ) {
1176                         using_dummy = true;
1177                 }
1178         }
1179
1180         clist = root.children();
1181
1182         for (citer = clist.begin(); citer != clist.end(); ++citer) {
1183
1184                 child = *citer;
1185
1186                 prop = child->property ("val");
1187
1188                 if (!prop || prop->value().empty()) {
1189
1190                         if ((using_dummy && ( child->name() == "interface" || child->name() == "inputdevice" || child->name() == "outputdevice" )) ||
1191                                 child->name() == "timeout")
1192                                 continue;
1193                         error << string_compose (_("AudioSetup value for %1 is missing data"), child->name()) << endmsg;
1194                         continue;
1195                 }
1196
1197                 strval = prop->value();
1198
1199                 /* adjustments/spinners */
1200
1201                 if (child->name() == "periods") {
1202                         val = atoi (strval);
1203                         periods_adjustment.set_value(val);
1204                 } else if (child->name() == "priority") {
1205                         val = atoi (strval);
1206                         priority_adjustment.set_value(val);
1207                 } else if (child->name() == "ports") {
1208                         val = atoi (strval);
1209                         ports_adjustment.set_value(val);
1210                 } else if (child->name() == "inchannels") {
1211                         val = atoi (strval);
1212                         input_channels.set_value(val);
1213                 } else if (child->name() == "outchannels") {
1214                         val = atoi (strval);
1215                         output_channels.set_value(val);
1216                 } else if (child->name() == "inlatency") {
1217                         val = atoi (strval);
1218                         input_latency.set_value(val);
1219                 } else if (child->name() == "outlatency") {
1220                         val = atoi (strval);
1221                         output_latency.set_value(val);
1222                 }
1223
1224                 /* buttons */
1225
1226                 else if (child->name() == "realtime") {
1227                         val = atoi (strval);
1228                         realtime_button.set_active(val);
1229                 } else if (child->name() == "nomemorylock") {
1230                         val = atoi (strval);
1231                         no_memory_lock_button.set_active(val);
1232                 } else if (child->name() == "unlockmemory") {
1233                         val = atoi (strval);
1234                         unlock_memory_button.set_active(val);
1235                 } else if (child->name() == "softmode") {
1236                         val = atoi (strval);
1237                         soft_mode_button.set_active(val);
1238                 } else if (child->name() == "force16bit") {
1239                         val = atoi (strval);
1240                         force16bit_button.set_active(val);
1241                 } else if (child->name() == "hwmonitor") {
1242                         val = atoi (strval);
1243                         hw_monitor_button.set_active(val);
1244                 } else if (child->name() == "hwmeter") {
1245                         val = atoi (strval);
1246                         hw_meter_button.set_active(val);
1247                 } else if (child->name() == "verbose") {
1248                         val = atoi (strval);
1249                         verbose_output_button.set_active(val);
1250                 }
1251
1252                 /* combos */
1253
1254                 else if (child->name() == "samplerate") {
1255                         sample_rate_combo.set_active_text(strval);
1256                 } else if (child->name() == "periodsize") {
1257                         period_size_combo.set_active_text(strval);
1258                 } else if (child->name() == "serverpath") {
1259
1260                         /* only attempt to set this if we have bothered to look
1261                            up server names already. otherwise this is all
1262                            redundant (actually, all of this dialog/widget
1263                            is redundant in that case ...)
1264                         */
1265
1266                         if (!server_strings.empty()) {
1267                                 /* do not allow us to use a server path that doesn't
1268                                    exist on this system. this handles cases where
1269                                    the user has an RC file listing a serverpath
1270                                    from some other machine.
1271                                 */
1272                                 vector<string>::iterator x;
1273                                 for (x = server_strings.begin(); x != server_strings.end(); ++x) {
1274                                         if (*x == strval) {
1275                                                 break;
1276                                         }
1277                                 }
1278                                 if (x != server_strings.end()) {
1279                                         serverpath_combo.set_active_text (strval);
1280                                 } else {
1281                                         warning << string_compose (_("configuration files contain a JACK server path that doesn't exist (%1)"),
1282                                                                    strval)
1283                                                 << endmsg;
1284                                 }
1285                         }
1286
1287                 } else if (child->name() == "driver") {
1288                         driver_combo.set_active_text(strval);
1289                 } else if (child->name() == "interface") {
1290                         interface_combo.set_active_text(strval);
1291                 } else if (child->name() == "timeout") {
1292                         timeout_combo.set_active_text(strval);
1293                 } else if (child->name() == "dither") {
1294                         dither_mode_combo.set_active_text(strval);
1295                 } else if (child->name() == "audiomode") {
1296                         audio_mode_combo.set_active_text(strval);
1297                 } else if (child->name() == "inputdevice") {
1298                         input_device_combo.set_active_text(strval);
1299                 } else if (child->name() == "outputdevice") {
1300                         output_device_combo.set_active_text(strval);
1301                 }
1302         }
1303 }