libs/ardour/region_factory.cc

   1 /*
   2     Copyright (C) 2000-2006 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., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <inttypes.h>
  21
  22 #include "pbd/error.h"
  23
  24 #include "ardour/audioregion.h"
  25 #include "ardour/audiosource.h"
  26 #include "ardour/midi_region.h"
  27 #include "ardour/midi_source.h"
  28 #include "ardour/region.h"
  29 #include "ardour/region_factory.h"
  30 #include "ardour/session.h"
  31
  32 #include "i18n.h"
  33
  34 using namespace ARDOUR;
  35 using namespace PBD;
  36 using namespace std;
  37
  38 PBD::Signal1<void,boost::shared_ptr<Region> > RegionFactory::CheckNewRegion;
  39 Glib::StaticMutex                             RegionFactory::region_map_lock;
  40 RegionFactory::RegionMap                      RegionFactory::region_map;
  41 PBD::ScopedConnectionList*                    RegionFactory::region_list_connections = 0;
  42 Glib::StaticMutex                             RegionFactory::region_name_map_lock;
  43 std::map<std::string, uint32_t>               RegionFactory::region_name_map;
  44 RegionFactory::CompoundAssociations           RegionFactory::_compound_associations;
  45
  46 boost::shared_ptr<Region>
  47 RegionFactory::create (boost::shared_ptr<const Region> region, bool announce)
  48 {
  49         boost::shared_ptr<Region> ret;
  50         boost::shared_ptr<const AudioRegion> ar;
  51         boost::shared_ptr<const MidiRegion> mr;
  52
  53         if ((ar = boost::dynamic_pointer_cast<const AudioRegion>(region)) != 0) {
  54
  55                 ret = boost::shared_ptr<Region> (new AudioRegion (ar, 0));
  56
  57         } else if ((mr = boost::dynamic_pointer_cast<const MidiRegion>(region)) != 0) {
  58
  59                 if (mr->session().config.get_midi_copy_is_fork()) {
  60                         ret = mr->clone ();
  61                 } else {
  62                         ret = boost::shared_ptr<Region> (new MidiRegion (mr, 0));
  63                 }
  64
  65         } else {
  66                 fatal << _("programming error: RegionFactory::create() called with unknown Region type")
  67                       << endmsg;
  68                 /*NOTREACHED*/
  69         }
  70
  71         if (ret) {
  72                 ret->set_name (new_region_name(ret->name()));
  73                 ret->set_position (region->position());
  74
  75                 if (ret->session().config.get_glue_new_regions_to_bars_and_beats ()) {
  76                         ret->set_position_lock_style (MusicTime);
  77                 }
  78
  79                 /* pure copy constructor - no property list */
  80                 if (announce) {
  81                         map_add (ret);
  82                         CheckNewRegion (ret);
  83                 }
  84         }
  85
  86 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
  87         // boost_debug_shared_ptr_mark_interesting (ret.get(), "Region");
  88 #endif
  89         return ret;
  90 }
  91
  92 boost::shared_ptr<Region>
  93 RegionFactory::create (boost::shared_ptr<Region> region, const PropertyList& plist, bool announce)
  94 {
  95         boost::shared_ptr<Region> ret;
  96         boost::shared_ptr<const AudioRegion> other_a;
  97         boost::shared_ptr<const MidiRegion> other_m;
  98
  99         if ((other_a = boost::dynamic_pointer_cast<AudioRegion>(region)) != 0) {
 100
 101                 ret = boost::shared_ptr<Region> (new AudioRegion (other_a));
 102
 103         } else if ((other_m = boost::dynamic_pointer_cast<MidiRegion>(region)) != 0) {
 104
 105                 ret = boost::shared_ptr<Region> (new MidiRegion (other_m));
 106
 107         } else {
 108                 fatal << _("programming error: RegionFactory::create() called with unknown Region type")
 109                       << endmsg;
 110                 /*NOTREACHED*/
 111                 return boost::shared_ptr<Region>();
 112         }
 113
 114         if (ret) {
 115                 ret->apply_changes (plist);
 116
 117                 if (ret->session().config.get_glue_new_regions_to_bars_and_beats ()) {
 118                         ret->set_position_lock_style (MusicTime);
 119                 }
 120
 121                 if (announce) {
 122                         map_add (ret);
 123                         CheckNewRegion (ret);
 124                 }
 125         }
 126
 127 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 128         // boost_debug_shared_ptr_mark_interesting (ret.get(), "Region");
 129 #endif
 130         return ret;
 131 }
 132
 133 boost::shared_ptr<Region>
 134 RegionFactory::create (boost::shared_ptr<Region> region, frameoffset_t offset, const PropertyList& plist, bool announce)
 135 {
 136         boost::shared_ptr<Region> ret;
 137         boost::shared_ptr<const AudioRegion> other_a;
 138         boost::shared_ptr<const MidiRegion> other_m;
 139
 140         if ((other_a = boost::dynamic_pointer_cast<AudioRegion>(region)) != 0) {
 141
 142                 ret = boost::shared_ptr<Region> (new AudioRegion (other_a, offset));
 143
 144         } else if ((other_m = boost::dynamic_pointer_cast<MidiRegion>(region)) != 0) {
 145
 146                 ret = boost::shared_ptr<Region> (new MidiRegion (other_m, offset));
 147
 148         } else {
 149                 fatal << _("programming error: RegionFactory::create() called with unknown Region type")
 150                       << endmsg;
 151                 /*NOTREACHED*/
 152                 return boost::shared_ptr<Region>();
 153         }
 154
 155         if (ret) {
 156                 ret->apply_changes (plist);
 157
 158                 if (ret->session().config.get_glue_new_regions_to_bars_and_beats ()) {
 159                         ret->set_position_lock_style (MusicTime);
 160                 }
 161
 162                 if (announce) {
 163                         map_add (ret);
 164                         CheckNewRegion (ret);
 165                 }
 166         }
 167
 168 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 169         // boost_debug_shared_ptr_mark_interesting (ret.get(), "Region");
 170 #endif
 171         return ret;
 172 }
 173
 174 boost::shared_ptr<Region>
 175 RegionFactory::create (boost::shared_ptr<Region> region, const SourceList& srcs, const PropertyList& plist, bool announce)
 176 {
 177         boost::shared_ptr<Region> ret;
 178         boost::shared_ptr<const AudioRegion> other;
 179
 180         /* used by AudioFilter when constructing a new region that is intended to have nearly
 181            identical settings to an original, but using different sources.
 182         */
 183
 184         if ((other = boost::dynamic_pointer_cast<AudioRegion>(region)) != 0) {
 185
 186                 // XXX use me in caller where plist is setup, this is start i think srcs.front()->length (srcs.front()->timeline_position())
 187
 188                 ret = boost::shared_ptr<Region> (new AudioRegion (other, srcs));
 189
 190         } else {
 191                 fatal << _("programming error: RegionFactory::create() called with unknown Region type")
 192                       << endmsg;
 193                 /*NOTREACHED*/
 194         }
 195
 196         if (ret) {
 197                 ret->apply_changes (plist);
 198
 199                 if (ret->session().config.get_glue_new_regions_to_bars_and_beats ()) {
 200                         ret->set_position_lock_style (MusicTime);
 201                 }
 202
 203                 if (announce) {
 204                         map_add (ret);
 205                         CheckNewRegion (ret);
 206                 }
 207         }
 208
 209 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 210         // boost_debug_shared_ptr_mark_interesting (ret.get(), "Region");
 211 #endif
 212         return ret;
 213 }
 214
 215 boost::shared_ptr<Region>
 216 RegionFactory::create (boost::shared_ptr<Source> src, const PropertyList& plist, bool announce)
 217 {
 218         SourceList srcs;
 219         srcs.push_back (src);
 220         return create (srcs, plist, announce);
 221 }
 222
 223 boost::shared_ptr<Region>
 224 RegionFactory::create (const SourceList& srcs, const PropertyList& plist, bool announce)
 225 {
 226         boost::shared_ptr<Region> ret;
 227         boost::shared_ptr<AudioSource> as;
 228         boost::shared_ptr<MidiSource> ms;
 229
 230         if ((as = boost::dynamic_pointer_cast<AudioSource>(srcs[0])) != 0) {
 231
 232                 ret = boost::shared_ptr<Region> (new AudioRegion (srcs));
 233
 234         } else if ((ms = boost::dynamic_pointer_cast<MidiSource>(srcs[0])) != 0) {
 235
 236                 ret = boost::shared_ptr<Region> (new MidiRegion (srcs));
 237
 238         }
 239
 240         if (ret) {
 241                 ret->apply_changes (plist);
 242
 243                 if (ret->session().config.get_glue_new_regions_to_bars_and_beats ()) {
 244                         ret->set_position_lock_style (MusicTime);
 245                 }
 246
 247                 if (announce) {
 248                         map_add (ret);
 249                         CheckNewRegion (ret);
 250                 }
 251         }
 252
 253 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 254         // boost_debug_shared_ptr_mark_interesting (ret.get(), "Region");
 255 #endif
 256         return ret;
 257 }
 258
 259 boost::shared_ptr<Region>
 260 RegionFactory::create (Session& session, XMLNode& node, bool yn)
 261 {
 262         return session.XMLRegionFactory (node, yn);
 263 }
 264
 265 boost::shared_ptr<Region>
 266 RegionFactory::create (SourceList& srcs, const XMLNode& node)
 267 {
 268         boost::shared_ptr<Region> ret;
 269
 270         if (srcs.empty()) {
 271                 return ret;
 272         }
 273
 274         if (srcs[0]->type() == DataType::AUDIO) {
 275
 276                 ret = boost::shared_ptr<Region> (new AudioRegion (srcs));
 277
 278         } else if (srcs[0]->type() == DataType::MIDI) {
 279
 280                 ret = boost::shared_ptr<Region> (new MidiRegion (srcs));
 281
 282         }
 283
 284         if (ret) {
 285                 if (ret->set_state (node, Stateful::loading_state_version)) {
 286                         ret.reset ();
 287                 } else {
 288                         map_add (ret);
 289
 290                         /* Don't fiddle with position_lock_style here as the region
 291                            description is coming from XML.
 292                         */
 293
 294                         CheckNewRegion (ret);
 295                 }
 296         }
 297
 298 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 299         // boost_debug_shared_ptr_mark_interesting (ret.get(), "Region");
 300 #endif
 301         return ret;
 302 }
 303
 304 void
 305 RegionFactory::map_add (boost::shared_ptr<Region> r)
 306 {
 307         pair<ID,boost::shared_ptr<Region> > p;
 308         p.first = r->id();
 309         p.second = r;
 310
 311         {
 312                 Glib::Mutex::Lock lm (region_map_lock);
 313                 region_map.insert (p);
 314         }
 315
 316         if (!region_list_connections) {
 317                 region_list_connections = new ScopedConnectionList;
 318         }
 319
 320         r->DropReferences.connect_same_thread (*region_list_connections, boost::bind (&RegionFactory::map_remove, boost::weak_ptr<Region> (r)));
 321         r->PropertyChanged.connect_same_thread (*region_list_connections, boost::bind (&RegionFactory::region_changed, _1, boost::weak_ptr<Region> (r)));
 322
 323         update_region_name_map (r);
 324 }
 325
 326 void
 327 RegionFactory::map_remove (boost::weak_ptr<Region> w)
 328 {
 329         boost::shared_ptr<Region> r = w.lock ();
 330         if (!r) {
 331                 return;
 332         }
 333
 334         Glib::Mutex::Lock lm (region_map_lock);
 335         RegionMap::iterator i = region_map.find (r->id());
 336
 337         if (i != region_map.end()) {
 338                 region_map.erase (i);
 339         }
 340 }
 341
 342 boost::shared_ptr<Region>
 343 RegionFactory::region_by_id (const PBD::ID& id)
 344 {
 345         RegionMap::iterator i = region_map.find (id);
 346
 347         if (i == region_map.end()) {
 348                 return boost::shared_ptr<Region>();
 349         }
 350
 351         return i->second;
 352 }
 353
 354 boost::shared_ptr<Region>
 355 RegionFactory::wholefile_region_by_name (const std::string& name)
 356 {
 357         for (RegionMap::iterator i = region_map.begin(); i != region_map.end(); ++i) {
 358                 if (i->second->whole_file() && i->second->name() == name) {
 359                         return i->second;
 360                 }
 361         }
 362         return boost::shared_ptr<Region>();
 363 }
 364
 365 boost::shared_ptr<Region>
 366 RegionFactory::region_by_name (const std::string& name)
 367 {
 368         for (RegionMap::iterator i = region_map.begin(); i != region_map.end(); ++i) {
 369                 if (i->second->name() == name) {
 370                         return i->second;
 371                 }
 372         }
 373         return boost::shared_ptr<Region>();
 374 }
 375
 376 void
 377 RegionFactory::clear_map ()
 378 {
 379         if (region_list_connections) {
 380                 region_list_connections->drop_connections ();
 381         }
 382
 383         {
 384                 Glib::Mutex::Lock lm (region_map_lock);
 385                 region_map.clear ();
 386                 _compound_associations.clear ();
 387         }
 388 }
 389
 390 void
 391 RegionFactory::delete_all_regions ()
 392 {
 393         RegionMap copy;
 394
 395         /* copy region list */
 396         {
 397                 Glib::Mutex::Lock lm (region_map_lock);
 398                 copy = region_map;
 399         }
 400
 401         /* clear existing map */
 402         clear_map ();
 403
 404         /* tell everyone to drop references */
 405         for (RegionMap::iterator i = copy.begin(); i != copy.end(); ++i) {
 406                 i->second->drop_references ();
 407         }
 408
 409         /* the copy should now hold the only references, which will
 410            vanish as we leave this scope, thus calling all destructors.
 411         */
 412 }
 413
 414 uint32_t
 415 RegionFactory::nregions ()
 416 {
 417         Glib::Mutex::Lock lm (region_map_lock);
 418         return region_map.size ();
 419 }
 420
 421 void
 422 RegionFactory::update_region_name_map (boost::shared_ptr<Region> region)
 423 {
 424         string::size_type const last_period = region->name().find_last_of ('.');
 425
 426         if (last_period != string::npos && last_period < region->name().length() - 1) {
 427
 428                 string const base = region->name().substr (0, last_period);
 429                 string const number = region->name().substr (last_period + 1);
 430
 431                 /* note that if there is no number, we get zero from atoi,
 432                    which is just fine
 433                 */
 434
 435                 Glib::Mutex::Lock lm (region_name_map_lock);
 436                 region_name_map[base] = atoi (number.c_str ());
 437         }
 438 }
 439
 440 void
 441 RegionFactory::region_changed (PropertyChange const & what_changed, boost::weak_ptr<Region> w)
 442 {
 443         boost::shared_ptr<Region> r = w.lock ();
 444         if (!r) {
 445                 return;
 446         }
 447
 448         if (what_changed.contains (Properties::name)) {
 449                 update_region_name_map (r);
 450         }
 451 }
 452
 453 int
 454 RegionFactory::region_name (string& result, string base, bool newlevel)
 455 {
 456         char buf[16];
 457         string subbase;
 458
 459         if (base.find("/") != string::npos) {
 460                 base = base.substr(base.find_last_of("/") + 1);
 461         }
 462
 463         if (base == "") {
 464
 465                 snprintf (buf, sizeof (buf), "%d", RegionFactory::nregions() + 1);
 466                 result = "region.";
 467                 result += buf;
 468
 469         } else {
 470
 471                 if (newlevel) {
 472                         subbase = base;
 473                 } else {
 474                         string::size_type pos;
 475
 476                         pos = base.find_last_of ('.');
 477
 478                         /* pos may be npos, but then we just use entire base */
 479
 480                         subbase = base.substr (0, pos);
 481
 482                 }
 483
 484                 {
 485                         Glib::Mutex::Lock lm (region_name_map_lock);
 486
 487                         map<string,uint32_t>::iterator x;
 488
 489                         result = subbase;
 490
 491                         if ((x = region_name_map.find (subbase)) == region_name_map.end()) {
 492                                 result += ".1";
 493                                 region_name_map[subbase] = 1;
 494                         } else {
 495                                 x->second++;
 496                                 snprintf (buf, sizeof (buf), ".%d", x->second);
 497
 498                                 result += buf;
 499                         }
 500                 }
 501         }
 502
 503         return 0;
 504 }
 505
 506 string
 507 RegionFactory::compound_region_name (const string& playlist, uint32_t compound_ops, uint32_t depth, bool whole_source)
 508 {
 509         if (whole_source) {
 510                 return string_compose (_("%1 compound-%2 (%3)"), playlist, compound_ops+1, depth+1);
 511         } else {
 512                 return string_compose (_("%1 compound-%2.1 (%3)"), playlist, compound_ops+1, depth+1);
 513         }
 514 }
 515
 516 string
 517 RegionFactory::new_region_name (string old)
 518 {
 519         string::size_type last_period;
 520         uint32_t number;
 521         string::size_type len = old.length() + 64;
 522         string remainder;
 523         char buf[len];
 524
 525         if ((last_period = old.find_last_of ('.')) == string::npos) {
 526
 527                 /* no period present - add one explicitly */
 528
 529                 old += '.';
 530                 last_period = old.length() - 1;
 531                 number = 0;
 532
 533         } else {
 534
 535                 if (last_period < old.length() - 1) {
 536
 537                         string period_to_end = old.substr (last_period+1);
 538
 539                         /* extra material after the period */
 540
 541                         string::size_type numerals_end = period_to_end.find_first_not_of ("0123456789");
 542
 543                         number = atoi (period_to_end);
 544
 545                         if (numerals_end < period_to_end.length() - 1) {
 546                                 /* extra material after the end of the digits */
 547                                 remainder = period_to_end.substr (numerals_end);
 548                         }
 549
 550                 } else {
 551                         last_period = old.length();
 552                         number = 0;
 553                 }
 554         }
 555
 556         while (number < (UINT_MAX-1)) {
 557
 558                 const RegionMap& regions (RegionFactory::regions());
 559                 RegionMap::const_iterator i;
 560                 string sbuf;
 561
 562                 number++;
 563
 564                 snprintf (buf, len, "%s%" PRIu32 "%s", old.substr (0, last_period + 1).c_str(), number, remainder.c_str());
 565                 sbuf = buf;
 566
 567                 for (i = regions.begin(); i != regions.end(); ++i) {
 568                         if (i->second->name() == sbuf) {
 569                                 break;
 570                         }
 571                 }
 572
 573                 if (i == regions.end()) {
 574                         break;
 575                 }
 576         }
 577
 578         if (number != (UINT_MAX-1)) {
 579                 return buf;
 580         }
 581
 582         error << string_compose (_("cannot create new name for region \"%1\""), old) << endmsg;
 583         return old;
 584 }
 585
 586 void
 587 RegionFactory::get_regions_using_source (boost::shared_ptr<Source> s, std::set<boost::shared_ptr<Region> >& r)
 588 {
 589         Glib::Mutex::Lock lm (region_map_lock);
 590
 591         for (RegionMap::iterator i = region_map.begin(); i != region_map.end(); ++i) {
 592                 if (i->second->uses_source (s)) {
 593                         r.insert (i->second);
 594                 }
 595         }
 596 }
 597
 598 void
 599 RegionFactory::remove_regions_using_source (boost::shared_ptr<Source> src)
 600 {
 601         Glib::Mutex::Lock lm (region_map_lock);
 602
 603         RegionMap::iterator i = region_map.begin();
 604         while (i != region_map.end()) {
 605
 606                 RegionMap::iterator j = i;
 607                 ++j;
 608
 609                 if (i->second->uses_source (src)) {
 610                         region_map.erase (i);
 611                 }
 612
 613                 i = j;
 614         }
 615 }
 616
 617 void
 618 RegionFactory::add_compound_association (boost::shared_ptr<Region> orig, boost::shared_ptr<Region> copy)
 619 {
 620         Glib::Mutex::Lock lm (region_map_lock);
 621         _compound_associations[copy] = orig;
 622 }