gtk2_ardour/port_group.cc

   1 /*
   2     Copyright (C) 2002-2009 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., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <cstring>
  21 #include <boost/shared_ptr.hpp>
  22
  23 #include "ardour/audio_track.h"
  24 #include "ardour/audioengine.h"
  25 #include "ardour/bundle.h"
  26 #include "ardour/user_bundle.h"
  27 #include "ardour/io_processor.h"
  28 #include "ardour/midi_track.h"
  29 #include "ardour/port.h"
  30 #include "ardour/session.h"
  31 #include "ardour/auditioner.h"
  32
  33 #include "gui_thread.h"
  34 #include "port_group.h"
  35 #include "port_matrix.h"
  36 #include "time_axis_view.h"
  37 #include "public_editor.h"
  38
  39 #include "i18n.h"
  40
  41 using namespace std;
  42 using namespace Gtk;
  43 using namespace ARDOUR;
  44
  45 /** PortGroup constructor.
  46  * @param n Name.
  47  */
  48 PortGroup::PortGroup (std::string const & n)
  49         : name (n)
  50 {
  51
  52 }
  53
  54 PortGroup::~PortGroup()
  55 {
  56         for (BundleList::iterator i = _bundles.begin(); i != _bundles.end(); ++i) {
  57                 delete *i;
  58         }
  59         _bundles.clear ();
  60 }
  61
  62 /** Add a bundle to a group.
  63  *  @param b Bundle.
  64  *  @param allow_dups true to allow the group to contain more than one bundle with the same port, otherwise false.
  65  */
  66 void
  67 PortGroup::add_bundle (boost::shared_ptr<Bundle> b, bool allow_dups)
  68 {
  69         add_bundle_internal (b, boost::shared_ptr<IO> (), false, Gdk::Color (), allow_dups);
  70 }
  71
  72 /** Add a bundle to a group.
  73  *  @param b Bundle.
  74  *  @param io IO whose ports are in the bundle.
  75  */
  76 void
  77 PortGroup::add_bundle (boost::shared_ptr<Bundle> b, boost::shared_ptr<IO> io)
  78 {
  79         add_bundle_internal (b, io, false, Gdk::Color (), false);
  80 }
  81
  82 /** Add a bundle to a group.
  83  *  @param b Bundle.
  84  *  @param c Colour to represent the bundle with.
  85  */
  86 void
  87 PortGroup::add_bundle (boost::shared_ptr<Bundle> b, boost::shared_ptr<IO> io, Gdk::Color c)
  88 {
  89         add_bundle_internal (b, io, true, c, false);
  90 }
  91
  92 PortGroup::BundleRecord::BundleRecord (boost::shared_ptr<ARDOUR::Bundle> b, boost::shared_ptr<ARDOUR::IO> iop, Gdk::Color c, bool has_c)
  93         : bundle (b)
  94         , io (iop)
  95         , colour (c)
  96         , has_colour (has_c)
  97 {
  98 }
  99
 100 void
 101 PortGroup::add_bundle_internal (boost::shared_ptr<Bundle> b, boost::shared_ptr<IO> io, bool has_colour, Gdk::Color colour, bool allow_dups)
 102 {
 103         assert (b.get());
 104
 105         if (!allow_dups) {
 106
 107                 /* don't add this bundle if we already have one with the same ports */
 108
 109                 BundleList::iterator i = _bundles.begin ();
 110                 while (i != _bundles.end() && b->has_same_ports ((*i)->bundle) == false) {
 111                         ++i;
 112                 }
 113
 114                 if (i != _bundles.end ()) {
 115                         return;
 116                 }
 117         }
 118
 119         BundleRecord* br = new BundleRecord (b, io, colour, has_colour);
 120         b->Changed.connect (br->changed_connection, invalidator (*this), ui_bind (&PortGroup::bundle_changed, this, _1), gui_context());
 121         _bundles.push_back (br);
 122
 123         Changed ();
 124 }
 125
 126 void
 127 PortGroup::remove_bundle (boost::shared_ptr<Bundle> b)
 128 {
 129         assert (b.get());
 130
 131         BundleList::iterator i = _bundles.begin ();
 132         while (i != _bundles.end() && (*i)->bundle != b) {
 133                 ++i;
 134         }
 135
 136         if (i == _bundles.end()) {
 137                 return;
 138         }
 139
 140         delete *i;
 141         _bundles.erase (i);
 142
 143         Changed ();
 144 }
 145
 146 void
 147 PortGroup::bundle_changed (Bundle::Change c)
 148 {
 149         BundleChanged (c);
 150 }
 151
 152
 153 void
 154 PortGroup::clear ()
 155 {
 156         for (BundleList::iterator i = _bundles.begin(); i != _bundles.end(); ++i) {
 157                 delete *i;
 158         }
 159
 160         _bundles.clear ();
 161         Changed ();
 162 }
 163
 164 bool
 165 PortGroup::has_port (std::string const& p) const
 166 {
 167         for (BundleList::const_iterator i = _bundles.begin(); i != _bundles.end(); ++i) {
 168                 if ((*i)->bundle->offers_port_alone (p)) {
 169                         return true;
 170                 }
 171         }
 172
 173         return false;
 174 }
 175
 176 boost::shared_ptr<Bundle>
 177 PortGroup::only_bundle ()
 178 {
 179         assert (_bundles.size() == 1);
 180         return _bundles.front()->bundle;
 181 }
 182
 183
 184 uint32_t
 185 PortGroup::total_channels () const
 186 {
 187         uint32_t n = 0;
 188         for (BundleList::const_iterator i = _bundles.begin(); i != _bundles.end(); ++i) {
 189                 n += (*i)->bundle->nchannels ();
 190         }
 191
 192         return n;
 193 }
 194
 195 boost::shared_ptr<IO>
 196 PortGroup::io_from_bundle (boost::shared_ptr<ARDOUR::Bundle> b) const
 197 {
 198         BundleList::const_iterator i = _bundles.begin ();
 199         while (i != _bundles.end() && (*i)->bundle != b) {
 200                 ++i;
 201         }
 202
 203         if (i == _bundles.end()) {
 204                 return boost::shared_ptr<IO> ();
 205         }
 206
 207         return (*i)->io;
 208 }
 209
 210 /** Remove bundles whose channels are already represented by other, larger bundles */
 211 void
 212 PortGroup::remove_duplicates ()
 213 {
 214         BundleList::iterator i = _bundles.begin();
 215         while (i != _bundles.end()) {
 216
 217                 BundleList::iterator tmp = i;
 218                 ++tmp;
 219
 220                 bool remove = false;
 221
 222                 for (BundleList::iterator j = _bundles.begin(); j != _bundles.end(); ++j) {
 223
 224                         if ((*j)->bundle->nchannels() > (*i)->bundle->nchannels()) {
 225                                 /* this bundle is larger */
 226
 227                                 uint32_t k = 0;
 228                                 while (k < (*i)->bundle->nchannels()) {
 229                                         /* see if this channel on *i has an equivalent on *j */
 230                                         uint32_t l = 0;
 231                                         while (l < (*j)->bundle->nchannels() && (*i)->bundle->channel_ports (k) != (*j)->bundle->channel_ports (l)) {
 232                                                 ++l;
 233                                         }
 234
 235                                         if (l == (*j)->bundle->nchannels()) {
 236                                                 /* it does not */
 237                                                 break;
 238                                         }
 239
 240                                         ++k;
 241                                 }
 242
 243                                 if (k == (*i)->bundle->nchannels ()) {
 244                                         /* all channels on *i are represented by the larger bundle *j, so remove *i */
 245                                         remove = true;
 246                                         break;
 247                                 }
 248                         }
 249                 }
 250
 251                 if (remove) {
 252                         _bundles.erase (i);
 253                 }
 254
 255                 i = tmp;
 256         }
 257 }
 258
 259
 260 /** PortGroupList constructor.
 261  */
 262 PortGroupList::PortGroupList ()
 263         : _type (DataType::AUDIO), _signals_suspended (false), _pending_change (false), _pending_bundle_change ((Bundle::Change) 0)
 264 {
 265
 266 }
 267
 268 PortGroupList::~PortGroupList()
 269 {
 270         /* XXX need to clean up bundles, but ownership shared with PortGroups */
 271 }
 272
 273 void
 274 PortGroupList::set_type (DataType t)
 275 {
 276         _type = t;
 277         clear ();
 278 }
 279
 280 void
 281 PortGroupList::maybe_add_processor_to_list (
 282         boost::weak_ptr<Processor> wp, list<boost::shared_ptr<Bundle> >* route_bundles, bool inputs, set<boost::shared_ptr<IO> >& used_io
 283         )
 284 {
 285         boost::shared_ptr<Processor> p (wp.lock());
 286
 287         if (!p) {
 288                 return;
 289         }
 290
 291         boost::shared_ptr<IOProcessor> iop = boost::dynamic_pointer_cast<IOProcessor> (p);
 292
 293         if (iop) {
 294
 295                 boost::shared_ptr<IO> io = inputs ? iop->input() : iop->output();
 296
 297                 if (io && used_io.find (io) == used_io.end()) {
 298                         route_bundles->push_back (io->bundle ());
 299                         used_io.insert (io);
 300                 }
 301         }
 302 }
 303
 304
 305 /** Gather bundles from around the system and put them in this PortGroupList */
 306 void
 307 PortGroupList::gather (ARDOUR::Session* session, bool inputs, bool allow_dups)
 308 {
 309         clear ();
 310
 311         if (session == 0) {
 312                 return;
 313         }
 314
 315         boost::shared_ptr<PortGroup> bus (new PortGroup (_("Bus")));
 316         boost::shared_ptr<PortGroup> track (new PortGroup (_("Track")));
 317         boost::shared_ptr<PortGroup> system (new PortGroup (_("System")));
 318         boost::shared_ptr<PortGroup> ardour (new PortGroup (_("Ardour")));
 319         boost::shared_ptr<PortGroup> other (new PortGroup (_("Other")));
 320
 321         /* Find the bundles for routes.  We use the RouteBundle class to join
 322            the route's input/output and processor bundles together so that they
 323            are presented as one bundle in the matrix. */
 324
 325         boost::shared_ptr<RouteList> routes = session->get_routes ();
 326
 327         for (RouteList::const_iterator i = routes->begin(); i != routes->end(); ++i) {
 328
 329                 list<boost::shared_ptr<Bundle> > route_bundles;
 330
 331                 /* keep track of IOs that we have taken bundles from,
 332                    so that we can avoid taking the same IO from both
 333                    Route::output() and the main_outs Delivery */
 334
 335                 set<boost::shared_ptr<IO> > used_io;
 336                 boost::shared_ptr<IO> io = inputs ? (*i)->input() : (*i)->output();
 337                 used_io.insert (io);
 338
 339                 route_bundles.push_back (io->bundle ());
 340
 341                 (*i)->foreach_processor (boost::bind (&PortGroupList::maybe_add_processor_to_list, this, _1, &route_bundles, inputs, used_io));
 342
 343                 /* Work out which group to put these bundles in */
 344                 boost::shared_ptr<PortGroup> g;
 345                 if (_type == DataType::AUDIO) {
 346
 347                         if (boost::dynamic_pointer_cast<AudioTrack> (*i)) {
 348                                 g = track;
 349                         } else if (!boost::dynamic_pointer_cast<MidiTrack>(*i)) {
 350                                 g = bus;
 351                         }
 352
 353
 354                 } else if (_type == DataType::MIDI) {
 355
 356                         if (boost::dynamic_pointer_cast<MidiTrack> (*i)) {
 357                                 g = track;
 358                         }
 359
 360                         /* No MIDI busses yet */
 361                 }
 362
 363                 if (g) {
 364
 365                         TimeAxisView* tv = PublicEditor::instance().axis_view_from_route (*i);
 366                         for (list<boost::shared_ptr<Bundle> >::iterator i = route_bundles.begin(); i != route_bundles.end(); ++i) {
 367                                 if (tv) {
 368                                         g->add_bundle (*i, io, tv->color ());
 369                                 } else {
 370                                         g->add_bundle (*i, io);
 371                                 }
 372                         }
 373                 }
 374         }
 375
 376         /* Bundles owned by the session; add user bundles first, then normal ones, so
 377            that UserBundles that offer the same ports as a normal bundle get priority
 378         */
 379
 380         boost::shared_ptr<BundleList> b = session->bundles ();
 381
 382         for (BundleList::iterator i = b->begin(); i != b->end(); ++i) {
 383                 if (boost::dynamic_pointer_cast<UserBundle> (*i) && (*i)->ports_are_inputs() == inputs && (*i)->type() == _type) {
 384                         system->add_bundle (*i, allow_dups);
 385                 }
 386         }
 387
 388         for (BundleList::iterator i = b->begin(); i != b->end(); ++i) {
 389                 if (boost::dynamic_pointer_cast<UserBundle> (*i) == 0 && (*i)->ports_are_inputs() == inputs && (*i)->type() == _type) {
 390                         system->add_bundle (*i, allow_dups);
 391                 }
 392         }
 393
 394         /* Ardour stuff */
 395
 396         if (!inputs && _type == DataType::AUDIO) {
 397                 ardour->add_bundle (session->the_auditioner()->output()->bundle());
 398                 ardour->add_bundle (session->click_io()->bundle());
 399         }
 400
 401         /* Now find all other ports that we haven't thought of yet */
 402
 403         std::vector<std::string> extra_system;
 404         std::vector<std::string> extra_other;
 405
 406         const char **ports = session->engine().get_ports ("", _type.to_jack_type(), inputs ?
 407                                                          JackPortIsInput : JackPortIsOutput);
 408         if (ports) {
 409
 410                 int n = 0;
 411                 string client_matching_string;
 412
 413                 client_matching_string = session->engine().client_name();
 414                 client_matching_string += ':';
 415
 416                 while (ports[n]) {
 417
 418                         std::string const p = ports[n];
 419
 420                         if (!system->has_port(p) &&
 421                             !bus->has_port(p) &&
 422                             !track->has_port(p) &&
 423                             !ardour->has_port(p) &&
 424                             !other->has_port(p)) {
 425
 426                                 /* special hack: ignore MIDI ports labelled Midi-Through. these
 427                                    are basically useless and mess things up for default
 428                                    connections.
 429                                 */
 430
 431                                 if (p.find ("MIDI-Through") != string::npos) {
 432                                         ++n;
 433                                         continue;
 434                                 }
 435
 436                                 if (port_has_prefix (p, "system:") ||
 437                                     port_has_prefix (p, "alsa_pcm") ||
 438                                     port_has_prefix (p, "ardour:")) {
 439                                         extra_system.push_back (p);
 440                                 } else {
 441                                         extra_other.push_back (p);
 442                                 }
 443                         }
 444
 445                         ++n;
 446                 }
 447
 448                 free (ports);
 449         }
 450
 451         if (!extra_system.empty()) {
 452                 boost::shared_ptr<Bundle> b = make_bundle_from_ports (extra_system, inputs);
 453                 system->add_bundle (b);
 454         }
 455
 456         if (!extra_other.empty()) {
 457                 other->add_bundle (make_bundle_from_ports (extra_other, inputs));
 458         }
 459
 460         if (!allow_dups) {
 461                 system->remove_duplicates ();
 462         }
 463
 464         add_group_if_not_empty (other);
 465         add_group_if_not_empty (bus);
 466         add_group_if_not_empty (track);
 467         add_group_if_not_empty (ardour);
 468         add_group_if_not_empty (system);
 469
 470         emit_changed ();
 471 }
 472
 473 boost::shared_ptr<Bundle>
 474 PortGroupList::make_bundle_from_ports (std::vector<std::string> const & p, bool inputs) const
 475 {
 476         boost::shared_ptr<Bundle> b (new Bundle ("", _type, inputs));
 477
 478         std::string const pre = common_prefix (p);
 479         if (!pre.empty()) {
 480                 b->set_name (pre.substr (0, pre.length() - 1));
 481         }
 482
 483         for (uint32_t j = 0; j < p.size(); ++j) {
 484                 b->add_channel (p[j].substr (pre.length()));
 485                 b->set_port (j, p[j]);
 486         }
 487
 488         return b;
 489 }
 490
 491 bool
 492 PortGroupList::port_has_prefix (const std::string& n, const std::string& p) const
 493 {
 494         return n.substr (0, p.length()) == p;
 495 }
 496
 497 std::string
 498 PortGroupList::common_prefix_before (std::vector<std::string> const & p, std::string const & s) const
 499 {
 500         /* we must have some strings and the first must contain the separator string */
 501         if (p.empty() || p[0].find_first_of (s) == std::string::npos) {
 502                 return "";
 503         }
 504
 505         /* prefix of the first string */
 506         std::string const fp = p[0].substr (0, p[0].find_first_of (s) + 1);
 507
 508         /* see if the other strings also start with fp */
 509         uint32_t j = 1;
 510         while (j < p.size()) {
 511                 if (p[j].substr (0, fp.length()) != fp) {
 512                         break;
 513                 }
 514                 ++j;
 515         }
 516
 517         if (j != p.size()) {
 518                 return "";
 519         }
 520
 521         return fp;
 522 }
 523
 524
 525 std::string
 526 PortGroupList::common_prefix (std::vector<std::string> const & p) const
 527 {
 528         /* common prefix before '/' ? */
 529         std::string cp = common_prefix_before (p, "/");
 530         if (!cp.empty()) {
 531                 return cp;
 532         }
 533
 534         cp = common_prefix_before (p, ":");
 535         if (!cp.empty()) {
 536                 return cp;
 537         }
 538
 539         return "";
 540 }
 541
 542 void
 543 PortGroupList::clear ()
 544 {
 545         _groups.clear ();
 546         _bundle_changed_connections.drop_connections ();
 547         emit_changed ();
 548 }
 549
 550
 551 PortGroup::BundleList const &
 552 PortGroupList::bundles () const
 553 {
 554         _bundles.clear ();
 555
 556         for (PortGroupList::List::const_iterator i = begin (); i != end (); ++i) {
 557                 std::copy ((*i)->bundles().begin(), (*i)->bundles().end(), std::back_inserter (_bundles));
 558         }
 559
 560         return _bundles;
 561 }
 562
 563 uint32_t
 564 PortGroupList::total_channels () const
 565 {
 566         uint32_t n = 0;
 567
 568         for (PortGroupList::List::const_iterator i = begin(); i != end(); ++i) {
 569                 n += (*i)->total_channels ();
 570         }
 571
 572         return n;
 573 }
 574
 575 void
 576 PortGroupList::add_group_if_not_empty (boost::shared_ptr<PortGroup> g)
 577 {
 578         if (!g->bundles().empty ()) {
 579                 add_group (g);
 580         }
 581 }
 582
 583 void
 584 PortGroupList::add_group (boost::shared_ptr<PortGroup> g)
 585 {
 586         _groups.push_back (g);
 587
 588         g->Changed.connect (_changed_connections, invalidator (*this), boost::bind (&PortGroupList::emit_changed, this), gui_context());
 589         g->BundleChanged.connect (_bundle_changed_connections, invalidator (*this), ui_bind (&PortGroupList::emit_bundle_changed, this, _1), gui_context());
 590
 591         emit_changed ();
 592 }
 593
 594 void
 595 PortGroupList::remove_bundle (boost::shared_ptr<Bundle> b)
 596 {
 597         for (List::iterator i = _groups.begin(); i != _groups.end(); ++i) {
 598                 (*i)->remove_bundle (b);
 599         }
 600
 601         emit_changed ();
 602 }
 603
 604 void
 605 PortGroupList::emit_changed ()
 606 {
 607         if (_signals_suspended) {
 608                 _pending_change = true;
 609         } else {
 610                 Changed ();
 611         }
 612 }
 613
 614 void
 615 PortGroupList::emit_bundle_changed (Bundle::Change c)
 616 {
 617         if (_signals_suspended) {
 618                 _pending_bundle_change = c;
 619         } else {
 620                 BundleChanged (c);
 621         }
 622 }
 623 void
 624 PortGroupList::suspend_signals ()
 625 {
 626         _signals_suspended = true;
 627 }
 628
 629 void
 630 PortGroupList::resume_signals ()
 631 {
 632         if (_pending_change) {
 633                 Changed ();
 634                 _pending_change = false;
 635         }
 636
 637         if (_pending_bundle_change != 0) {
 638                 BundleChanged (_pending_bundle_change);
 639                 _pending_bundle_change = (ARDOUR::Bundle::Change) 0;
 640         }
 641
 642         _signals_suspended = false;
 643 }
 644
 645 boost::shared_ptr<IO>
 646 PortGroupList::io_from_bundle (boost::shared_ptr<ARDOUR::Bundle> b) const
 647 {
 648         List::const_iterator i = _groups.begin ();
 649         while (i != _groups.end()) {
 650                 boost::shared_ptr<IO> io = (*i)->io_from_bundle (b);
 651                 if (io) {
 652                         return io;
 653                 }
 654                 ++i;
 655         }
 656
 657         return boost::shared_ptr<IO> ();
 658 }
 659
 660 bool
 661 PortGroupList::empty () const
 662 {
 663         List::const_iterator i = _groups.begin ();
 664         while (i != _groups.end() && (*i)->total_channels() == 0) {
 665                 ++i;
 666         }
 667
 668         return (i == _groups.end());
 669 }
 670