libs/surfaces/faderport8/faderport8.cc

   1 /*
   2  * Copyright (C) 2017 Robin Gareus <robin@gareus.org>
   3  * Copyright (C) 2015 Paul Davis
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include <cstdlib>
  21 #include <sstream>
  22 #include <algorithm>
  23
  24 #include <stdint.h>
  25
  26 #include "pbd/error.h"
  27 #include "pbd/failed_constructor.h"
  28 #include "pbd/pthread_utils.h"
  29 #include "pbd/compose.h"
  30 #include "pbd/xml++.h"
  31
  32 #include "midi++/port.h"
  33
  34 #include "ardour/audioengine.h"
  35 #include "ardour/audio_track.h"
  36 #include "ardour/bundle.h"
  37 #include "ardour/debug.h"
  38 #include "ardour/midi_track.h"
  39 #include "ardour/midiport_manager.h"
  40 #include "ardour/plugin_insert.h"
  41 #include "ardour/processor.h"
  42 #include "ardour/rc_configuration.h"
  43 #include "ardour/route.h"
  44 #include "ardour/session.h"
  45 #include "ardour/session_configuration.h"
  46 #include "ardour/vca.h"
  47
  48 #include "faderport8.h"
  49
  50 using namespace ARDOUR;
  51 using namespace ArdourSurface;
  52 using namespace PBD;
  53 using namespace Glib;
  54 using namespace std;
  55 using namespace ArdourSurface::FP8Types;
  56
  57 #include "pbd/i18n.h"
  58
  59 #include "pbd/abstract_ui.cc" // instantiate template
  60
  61 #ifndef NDEBUG
  62 //#define VERBOSE_DEBUG
  63 #endif
  64
  65 static void
  66 debug_2byte_msg (std::string const& msg, int b0, int b1)
  67 {
  68 #ifndef NDEBUG
  69         if (DEBUG_ENABLED(DEBUG::FaderPort8)) {
  70                 DEBUG_STR_DECL(a);
  71                 DEBUG_STR_APPEND(a, "RECV: ");
  72                 DEBUG_STR_APPEND(a, msg);
  73                 DEBUG_STR_APPEND(a,' ');
  74                 DEBUG_STR_APPEND(a,hex);
  75                 DEBUG_STR_APPEND(a,"0x");
  76                 DEBUG_STR_APPEND(a, b0);
  77                 DEBUG_STR_APPEND(a,' ');
  78                 DEBUG_STR_APPEND(a,"0x");
  79                 DEBUG_STR_APPEND(a, b1);
  80                 DEBUG_STR_APPEND(a,'\n');
  81                 DEBUG_TRACE (DEBUG::FaderPort8, DEBUG_STR(a).str());
  82         }
  83 #endif
  84 }
  85
  86 FaderPort8::FaderPort8 (Session& s)
  87         : ControlProtocol (s, _("PreSonus FaderPort8"))
  88         , AbstractUI<FaderPort8Request> (name())
  89         , _connection_state (ConnectionState (0))
  90         , _device_active (false)
  91         , _ctrls (*this)
  92         , _channel_off (0)
  93         , _plugin_off (0)
  94         , _parameter_off (0)
  95         , _blink_onoff (false)
  96         , _shift_lock (false)
  97         , _shift_pressed (false)
  98         , gui (0)
  99 {
 100         boost::shared_ptr<ARDOUR::Port> inp;
 101         boost::shared_ptr<ARDOUR::Port> outp;
 102
 103         inp  = AudioEngine::instance()->register_input_port (DataType::MIDI, "FaderPort8 Recv", true);
 104         outp = AudioEngine::instance()->register_output_port (DataType::MIDI, "FaderPort8 Send", true);
 105         _input_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(inp);
 106         _output_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(outp);
 107
 108         if (_input_port == 0 || _output_port == 0) {
 109                 throw failed_constructor();
 110         }
 111
 112         _input_bundle.reset (new ARDOUR::Bundle (_("FaderPort8 (Receive)"), true));
 113         _output_bundle.reset (new ARDOUR::Bundle (_("FaderPort8 (Send) "), false));
 114
 115         _input_bundle->add_channel (
 116                 inp->name(),
 117                 ARDOUR::DataType::MIDI,
 118                 session->engine().make_port_name_non_relative (inp->name())
 119                 );
 120
 121         _output_bundle->add_channel (
 122                 outp->name(),
 123                 ARDOUR::DataType::MIDI,
 124                 session->engine().make_port_name_non_relative (outp->name())
 125                 );
 126
 127         ARDOUR::AudioEngine::instance()->PortConnectedOrDisconnected.connect (port_connection, MISSING_INVALIDATOR, boost::bind (&FaderPort8::connection_handler, this, _1, _2, _3, _4, _5), this);
 128
 129         StripableSelectionChanged.connect (selection_connection, MISSING_INVALIDATOR, boost::bind (&FaderPort8::gui_track_selection_changed, this), this);
 130
 131         setup_actions ();
 132         _ctrls.FaderModeChanged.connect_same_thread (modechange_connections, boost::bind (&FaderPort8::notify_fader_mode_changed, this));
 133         _ctrls.MixModeChanged.connect_same_thread (modechange_connections, boost::bind (&FaderPort8::assign_strips, this, true));
 134 }
 135
 136 FaderPort8::~FaderPort8 ()
 137 {
 138         cerr << "~FP8\n";
 139         stop_midi_handling  ();
 140         close ();
 141
 142         if (_input_port) {
 143                 DEBUG_TRACE (DEBUG::FaderPort8, string_compose ("unregistering input port %1\n", boost::shared_ptr<ARDOUR::Port>(_input_port)->name()));
 144                 AudioEngine::instance()->unregister_port (_input_port);
 145                 _input_port.reset ();
 146         }
 147
 148         if (_output_port) {
 149                 _output_port->drain (10000,  250000); /* check every 10 msecs, wait up to 1/4 second for the port to drain */
 150                 DEBUG_TRACE (DEBUG::FaderPort8, string_compose ("unregistering output port %1\n", boost::shared_ptr<ARDOUR::Port>(_output_port)->name()));
 151                 AudioEngine::instance()->unregister_port (_output_port);
 152                 _output_port.reset ();
 153         }
 154
 155         tear_down_gui ();
 156
 157         /* stop event loop */
 158         DEBUG_TRACE (DEBUG::FaderPort8, "BaseUI::quit ()\n");
 159         BaseUI::quit ();
 160 }
 161
 162 /* ****************************************************************************
 163  * Event Loop
 164  */
 165
 166 void*
 167 FaderPort8::request_factory (uint32_t num_requests)
 168 {
 169         /* AbstractUI<T>::request_buffer_factory() is a template method only
 170          * instantiated in this source module. To provide something visible for
 171          * use in the interface/descriptor, we have this static method that is
 172          * template-free.
 173          */
 174         return request_buffer_factory (num_requests);
 175 }
 176
 177 void
 178 FaderPort8::do_request (FaderPort8Request* req)
 179 {
 180         if (req->type == CallSlot) {
 181                 call_slot (MISSING_INVALIDATOR, req->the_slot);
 182         } else if (req->type == Quit) {
 183                 stop ();
 184         }
 185 }
 186
 187 int
 188 FaderPort8::stop ()
 189 {
 190         BaseUI::quit ();
 191         return 0;
 192 }
 193
 194 void
 195 FaderPort8::thread_init ()
 196 {
 197         struct sched_param rtparam;
 198
 199         pthread_set_name (event_loop_name().c_str());
 200
 201         PBD::notify_event_loops_about_thread_creation (pthread_self(), event_loop_name(), 2048);
 202         ARDOUR::SessionEvent::create_per_thread_pool (event_loop_name(), 128);
 203
 204         memset (&rtparam, 0, sizeof (rtparam));
 205         rtparam.sched_priority = 9; /* XXX should be relative to audio (JACK) thread */
 206
 207         if (pthread_setschedparam (pthread_self(), SCHED_FIFO, &rtparam) != 0) {
 208                 // do we care? not particularly.
 209         }
 210 }
 211
 212 bool
 213 FaderPort8::periodic ()
 214 {
 215         /* prepare TC display -- handled by stripable Periodic () */
 216         if (_ctrls.display_timecode ()) {
 217                 // TODO allow BBT, HHMMSS
 218                 // used in FP8Strip::periodic_update_timecode
 219                 Timecode::Time TC;
 220                 session->timecode_time (TC);
 221                 _timecode = Timecode::timecode_format_time(TC);
 222         } else {
 223                 _timecode.clear ();
 224         }
 225
 226         /* update stripables */
 227         Periodic ();
 228         return true;
 229 }
 230
 231 bool
 232 FaderPort8::blink_it ()
 233 {
 234         _blink_onoff = !_blink_onoff;
 235         BlinkIt (_blink_onoff);
 236         return true;
 237 }
 238
 239 /* ****************************************************************************
 240  * Port and Signal Connection Management
 241  */
 242 int
 243 FaderPort8::set_active (bool yn)
 244 {
 245         DEBUG_TRACE (DEBUG::FaderPort8, string_compose("set_active init with yn: '%1'\n", yn));
 246
 247         if (yn == active()) {
 248                 return 0;
 249         }
 250
 251         if (yn) {
 252                 /* start event loop */
 253                 BaseUI::run ();
 254                 connect_session_signals ();
 255         } else {
 256                 BaseUI::quit ();
 257                 close ();
 258         }
 259
 260         ControlProtocol::set_active (yn);
 261         DEBUG_TRACE (DEBUG::FaderPort8, string_compose("set_active done with yn: '%1'\n", yn));
 262         return 0;
 263 }
 264
 265 void
 266 FaderPort8::close ()
 267 {
 268         _assigned_strips.clear ();
 269         stop_midi_handling ();
 270         session_connections.drop_connections ();
 271         automation_state_connections.drop_connections ();
 272         assigned_stripable_connections.drop_connections ();
 273         drop_ctrl_connections ();
 274         port_connection.disconnect ();
 275         selection_connection.disconnect ();
 276 }
 277
 278 void
 279 FaderPort8::stop_midi_handling ()
 280 {
 281         _periodic_connection.disconnect ();
 282         _blink_connection.disconnect ();
 283         midi_connections.drop_connections ();
 284         /* Note: the input handler is still active at this point, but we're no
 285          * longer connected to any of the parser signals
 286          */
 287 }
 288
 289 void
 290 FaderPort8::connected ()
 291 {
 292         DEBUG_TRACE (DEBUG::FaderPort8, "initializing\n");
 293         // ideally check firmware version >= 1.01 (USB bcdDevice 0x0101) (vendor 0x194f prod 0x0202)
 294         // but we don't have a handle to the underlying USB device here.
 295
 296         _channel_off = _plugin_off = _parameter_off = 0;
 297         _blink_onoff = false;
 298         _shift_lock = false;
 299         _shift_pressed = false;
 300
 301         start_midi_handling ();
 302         _ctrls.initialize ();
 303
 304         /* highlight bound user-actions */
 305         for (FP8Controls::UserButtonMap::const_iterator i = _ctrls.user_buttons ().begin ();
 306                         i != _ctrls.user_buttons ().end (); ++i) {
 307                 _ctrls.button (i->first).set_active (! _user_action_map[i->first].empty ());
 308         }
 309         /* shift button lights */
 310         tx_midi3 (0x90, 0x06, 0x00);
 311         tx_midi3 (0x90, 0x46, 0x00);
 312
 313         send_session_state ();
 314         assign_strips (true);
 315
 316         Glib::RefPtr<Glib::TimeoutSource> blink_timer =
 317                 Glib::TimeoutSource::create (200);
 318         _blink_connection = blink_timer->connect (sigc::mem_fun (*this, &FaderPort8::blink_it));
 319         blink_timer->attach (main_loop()->get_context());
 320
 321         Glib::RefPtr<Glib::TimeoutSource> periodic_timer =
 322                 Glib::TimeoutSource::create (100);
 323         _periodic_connection = periodic_timer->connect (sigc::mem_fun (*this, &FaderPort8::periodic));
 324         periodic_timer->attach (main_loop()->get_context());
 325 }
 326
 327 void
 328 FaderPort8::disconnected ()
 329 {
 330         stop_midi_handling ();
 331         for (uint8_t id = 0; id < 8; ++id) {
 332                 _ctrls.strip(id).unset_controllables ();
 333         }
 334 }
 335
 336 bool
 337 FaderPort8::connection_handler (boost::weak_ptr<ARDOUR::Port>, std::string name1, boost::weak_ptr<ARDOUR::Port>, std::string name2, bool yn)
 338 {
 339 #ifdef VERBOSE_DEBUG
 340         DEBUG_TRACE (DEBUG::FaderPort8, "FaderPort8::connection_handler: start\n");
 341 #endif
 342         if (!_input_port || !_output_port) {
 343                 return false;
 344         }
 345
 346         string ni = ARDOUR::AudioEngine::instance()->make_port_name_non_relative (boost::shared_ptr<ARDOUR::Port>(_input_port)->name());
 347         string no = ARDOUR::AudioEngine::instance()->make_port_name_non_relative (boost::shared_ptr<ARDOUR::Port>(_output_port)->name());
 348
 349         if (ni == name1 || ni == name2) {
 350                 if (yn) {
 351                         _connection_state |= InputConnected;
 352                 } else {
 353                         _connection_state &= ~InputConnected;
 354                 }
 355         } else if (no == name1 || no == name2) {
 356                 if (yn) {
 357                         _connection_state |= OutputConnected;
 358                 } else {
 359                         _connection_state &= ~OutputConnected;
 360                 }
 361         } else {
 362 #ifdef VERBOSE_DEBUG
 363                 DEBUG_TRACE (DEBUG::FaderPort8, string_compose ("Connections between %1 and %2 changed, but I ignored it\n", name1, name2));
 364 #endif
 365                 /* not our ports */
 366                 return false;
 367         }
 368
 369         if ((_connection_state & (InputConnected|OutputConnected)) == (InputConnected|OutputConnected)) {
 370
 371                 /* XXX this is a horrible hack. Without a short sleep here,
 372                  * something prevents the device wakeup messages from being
 373                  * sent and/or the responses from being received.
 374                  */
 375                 g_usleep (100000);
 376                 DEBUG_TRACE (DEBUG::FaderPort8, "device now connected for both input and output\n");
 377                 connected ();
 378                 _device_active = true;
 379
 380         } else {
 381                 DEBUG_TRACE (DEBUG::FaderPort8, "Device disconnected (input or output or both) or not yet fully connected\n");
 382                 disconnected ();
 383                 _device_active = false;
 384         }
 385
 386         ConnectionChange (); /* emit signal for our GUI */
 387
 388 #ifdef VERBOSE_DEBUG
 389         DEBUG_TRACE (DEBUG::FaderPort8, "FaderPort8::connection_handler: end\n");
 390 #endif
 391
 392         return true; /* connection status changed */
 393 }
 394
 395 list<boost::shared_ptr<ARDOUR::Bundle> >
 396 FaderPort8::bundles ()
 397 {
 398         list<boost::shared_ptr<ARDOUR::Bundle> > b;
 399
 400         if (_input_bundle) {
 401                 b.push_back (_input_bundle);
 402                 b.push_back (_output_bundle);
 403         }
 404
 405         return b;
 406 }
 407
 408 /* ****************************************************************************
 409  * MIDI I/O
 410  */
 411 bool
 412 FaderPort8::midi_input_handler (Glib::IOCondition ioc, boost::weak_ptr<ARDOUR::AsyncMIDIPort> wport)
 413 {
 414         boost::shared_ptr<AsyncMIDIPort> port (wport.lock());
 415
 416         if (!port) {
 417                 return false;
 418         }
 419
 420 #ifdef VERBOSE_DEBUG
 421         DEBUG_TRACE (DEBUG::FaderPort8, string_compose ("something happend on %1\n", boost::shared_ptr<MIDI::Port>(port)->name()));
 422 #endif
 423
 424         if (ioc & ~IO_IN) {
 425                 return false;
 426         }
 427
 428         if (ioc & IO_IN) {
 429
 430                 port->clear ();
 431 #ifdef VERBOSE_DEBUG
 432                 DEBUG_TRACE (DEBUG::FaderPort8, string_compose ("data available on %1\n", boost::shared_ptr<MIDI::Port>(port)->name()));
 433 #endif
 434                 framepos_t now = session->engine().sample_time();
 435                 port->parse (now);
 436         }
 437
 438         return true;
 439 }
 440
 441 void
 442 FaderPort8::start_midi_handling ()
 443 {
 444         _input_port->parser()->sysex.connect_same_thread (midi_connections, boost::bind (&FaderPort8::sysex_handler, this, _1, _2, _3));
 445         _input_port->parser()->poly_pressure.connect_same_thread (midi_connections, boost::bind (&FaderPort8::polypressure_handler, this, _1, _2));
 446         for (uint8_t i = 0; i < 16; ++i) {
 447         _input_port->parser()->channel_pitchbend[i].connect_same_thread (midi_connections, boost::bind (&FaderPort8::pitchbend_handler, this, _1, i, _2));
 448         }
 449         _input_port->parser()->controller.connect_same_thread (midi_connections, boost::bind (&FaderPort8::controller_handler, this, _1, _2));
 450         _input_port->parser()->note_on.connect_same_thread (midi_connections, boost::bind (&FaderPort8::note_on_handler, this, _1, _2));
 451         _input_port->parser()->note_off.connect_same_thread (midi_connections, boost::bind (&FaderPort8::note_off_handler, this, _1, _2));
 452
 453         /* This connection means that whenever data is ready from the input
 454          * port, the relevant thread will invoke our ::midi_input_handler()
 455          * method, which will read the data, and invoke the parser.
 456          */
 457         _input_port->xthread().set_receive_handler (sigc::bind (sigc::mem_fun (this, &FaderPort8::midi_input_handler), boost::weak_ptr<AsyncMIDIPort> (_input_port)));
 458         _input_port->xthread().attach (main_loop()->get_context());
 459 }
 460
 461 size_t
 462 FaderPort8::tx_midi (std::vector<uint8_t> const& d) const
 463 {
 464         /* work around midi buffer overflow for batch changes */
 465         if (d.size() == 3 && (d[0] == 0x91 || d[0] == 0x92)) {
 466                 /* set colors triplet in one go */
 467         } else if (d.size() == 3 && (d[0] == 0x93)) {
 468                 g_usleep (1500);
 469         } else {
 470                 g_usleep (400 * d.size());
 471         }
 472 #ifndef NDEBUG
 473         size_t tx = _output_port->write (&d[0], d.size(), 0);
 474         assert (tx == d.size());
 475         return tx;
 476 #else
 477         return _output_port->write (&d[0], d.size(), 0);
 478 #endif
 479 }
 480
 481 /* ****************************************************************************
 482  * MIDI Callbacks
 483  */
 484 void
 485 FaderPort8::polypressure_handler (MIDI::Parser &, MIDI::EventTwoBytes* tb)
 486 {
 487         debug_2byte_msg ("PP", tb->controller_number, tb->value);
 488         // outgoing only (meter)
 489 }
 490
 491 void
 492 FaderPort8::pitchbend_handler (MIDI::Parser &, uint8_t chan, MIDI::pitchbend_t pb)
 493 {
 494         debug_2byte_msg ("PB", chan, pb);
 495         /* fader 0..16368 (0x3ff0 -- 1024 steps) */
 496         bool handled = _ctrls.midi_fader (chan, pb);
 497         /* if Shift key is held while moving a fader (group override), don't lock shift. */
 498         if (_shift_pressed && handled) {
 499                 _shift_connection.disconnect ();
 500                 _shift_lock = false;
 501         }
 502 }
 503
 504 void
 505 FaderPort8::controller_handler (MIDI::Parser &, MIDI::EventTwoBytes* tb)
 506 {
 507         debug_2byte_msg ("CC", tb->controller_number, tb->value);
 508         // encoder
 509         // val Bit 7 = direction, Bits 0-6 = number of steps
 510         if (tb->controller_number == 0x3c) {
 511                 encoder_navigate (tb->value & 0x40 ? true : false, tb->value & 0x3f);
 512         }
 513         if (tb->controller_number == 0x10) {
 514                 encoder_parameter (tb->value & 0x40 ? true : false, tb->value & 0x3f);
 515         }
 516 }
 517
 518 void
 519 FaderPort8::note_on_handler (MIDI::Parser &, MIDI::EventTwoBytes* tb)
 520 {
 521         debug_2byte_msg ("ON", tb->note_number, tb->velocity);
 522
 523         /* fader touch */
 524         if (tb->note_number >= 0x68 && tb->note_number <= 0x6f) {
 525                 _ctrls.midi_touch (tb->note_number - 0x68, tb->velocity);
 526                 return;
 527         }
 528
 529         /* special case shift */
 530         if (tb->note_number == 0x06 || tb->note_number == 0x46) {
 531                 _shift_pressed = true;
 532                 _shift_connection.disconnect ();
 533                 if (_shift_lock) {
 534                         _shift_lock = false;
 535                         ShiftButtonChange (false);
 536                         tx_midi3 (0x90, 0x06, 0x00);
 537                         tx_midi3 (0x90, 0x46, 0x00);
 538                         return;
 539                 }
 540
 541                 Glib::RefPtr<Glib::TimeoutSource> shift_timer =
 542                         Glib::TimeoutSource::create (1000);
 543                 shift_timer->attach (main_loop()->get_context());
 544                 _shift_connection = shift_timer->connect (sigc::mem_fun (*this, &FaderPort8::shift_timeout));
 545
 546                 ShiftButtonChange (true);
 547                 tx_midi3 (0x90, 0x06, 0x7f);
 548                 tx_midi3 (0x90, 0x46, 0x7f);
 549                 return;
 550         }
 551
 552         _ctrls.midi_event (tb->note_number, tb->velocity);
 553 }
 554
 555 void
 556 FaderPort8::note_off_handler (MIDI::Parser &, MIDI::EventTwoBytes* tb)
 557 {
 558         debug_2byte_msg ("OF", tb->note_number, tb->velocity);
 559
 560         if (tb->note_number >= 0x68 && tb->note_number <= 0x6f) {
 561                 // fader touch
 562                 _ctrls.midi_touch (tb->note_number - 0x68, tb->velocity);
 563                 return;
 564         }
 565
 566         /* special case shift */
 567         if (tb->note_number == 0x06 || tb->note_number == 0x46) {
 568                 _shift_pressed = false;
 569                 if (_shift_lock) {
 570                         return;
 571                 }
 572                 ShiftButtonChange (false);
 573                 tx_midi3 (0x90, 0x06, 0x00);
 574                 tx_midi3 (0x90, 0x46, 0x00);
 575                 /* just in case this happens concurrently */
 576                 _shift_connection.disconnect ();
 577                 _shift_lock = false;
 578                 return;
 579         }
 580
 581         bool handled = _ctrls.midi_event (tb->note_number, tb->velocity);
 582         /* if Shift key is held while activating an action, don't lock shift. */
 583         if (_shift_pressed && handled) {
 584                 _shift_connection.disconnect ();
 585                 _shift_lock = false;
 586         }
 587 }
 588
 589 void
 590 FaderPort8::sysex_handler (MIDI::Parser &p, MIDI::byte *buf, size_t size)
 591 {
 592 #ifndef NDEBUG
 593         if (DEBUG_ENABLED(DEBUG::FaderPort8)) {
 594                 DEBUG_STR_DECL(a);
 595                 DEBUG_STR_APPEND(a, string_compose ("RECV sysex siz=%1", size));
 596                 for (size_t i=0; i < size; ++i) {
 597                         DEBUG_STR_APPEND(a,hex);
 598                         DEBUG_STR_APPEND(a,"0x");
 599                         DEBUG_STR_APPEND(a,(int)buf[i]);
 600                         DEBUG_STR_APPEND(a,' ');
 601                 }
 602                 DEBUG_STR_APPEND(a,'\n');
 603                 DEBUG_TRACE (DEBUG::FaderPort8, DEBUG_STR(a).str());
 604         }
 605 #endif
 606 }
 607
 608 /* ****************************************************************************
 609  * User actions
 610  */
 611 void
 612 FaderPort8::set_button_action (FP8Controls::ButtonId id, bool press, std::string const& action_name)
 613 {
 614         if (_ctrls.user_buttons().find (id) == _ctrls.user_buttons().end ()) {
 615                 return;
 616         }
 617         _user_action_map[id].action (press).assign_action (action_name);
 618
 619         if (!_device_active) {
 620                 return;
 621         }
 622         _ctrls.button (id).set_active (!_user_action_map[id].empty ());
 623 }
 624
 625 std::string
 626 FaderPort8::get_button_action (FP8Controls::ButtonId id, bool press)
 627 {
 628         return _user_action_map[id].action(press)._action_name;
 629 }
 630
 631 /* ****************************************************************************
 632  * Persistent State
 633  */
 634 XMLNode&
 635 FaderPort8::get_state ()
 636 {
 637         DEBUG_TRACE (DEBUG::FaderPort8, "FaderPort8::get_state\n");
 638         XMLNode& node (ControlProtocol::get_state());
 639
 640         XMLNode* child;
 641
 642         child = new XMLNode (X_("Input"));
 643         child->add_child_nocopy (boost::shared_ptr<ARDOUR::Port>(_input_port)->get_state());
 644         node.add_child_nocopy (*child);
 645
 646         child = new XMLNode (X_("Output"));
 647         child->add_child_nocopy (boost::shared_ptr<ARDOUR::Port>(_output_port)->get_state());
 648         node.add_child_nocopy (*child);
 649
 650         for (UserActionMap::const_iterator i = _user_action_map.begin (); i != _user_action_map.end (); ++i) {
 651                 if (i->second.empty()) {
 652                         continue;
 653                 }
 654                 std::string name;
 655                 if (!_ctrls.button_enum_to_name (i->first, name)) {
 656                         continue;
 657                 }
 658                 XMLNode* btn = new XMLNode (X_("Button"));
 659                 btn->add_property (X_("id"), name);
 660                 if (!i->second.action(true).empty ()) {
 661                         btn->add_property ("press", i->second.action(true)._action_name);
 662                 }
 663                 if (!i->second.action(false).empty ()) {
 664                         btn->add_property ("release", i->second.action(false)._action_name);
 665                 }
 666                 node.add_child_nocopy (*btn);
 667         }
 668
 669         return node;
 670 }
 671
 672 int
 673 FaderPort8::set_state (const XMLNode& node, int version)
 674 {
 675         DEBUG_TRACE (DEBUG::FaderPort8, "FaderPort8::set_state\n");
 676         XMLNodeList nlist;
 677         XMLNodeConstIterator niter;
 678         XMLNode const* child;
 679
 680         if (ControlProtocol::set_state (node, version)) {
 681                 return -1;
 682         }
 683
 684         if ((child = node.child (X_("Input"))) != 0) {
 685                 XMLNode* portnode = child->child (Port::state_node_name.c_str());
 686                 if (portnode) {
 687                         DEBUG_TRACE (DEBUG::FaderPort8, "FaderPort8::set_state Input\n");
 688                         boost::shared_ptr<ARDOUR::Port>(_input_port)->set_state (*portnode, version);
 689                 }
 690         }
 691
 692         if ((child = node.child (X_("Output"))) != 0) {
 693                 XMLNode* portnode = child->child (Port::state_node_name.c_str());
 694                 if (portnode) {
 695                         DEBUG_TRACE (DEBUG::FaderPort8, "FaderPort8::set_state Output\n");
 696                         boost::shared_ptr<ARDOUR::Port>(_output_port)->set_state (*portnode, version);
 697                 }
 698         }
 699
 700         _user_action_map.clear ();
 701         // TODO: When re-loading state w/o surface re-init becomes possible,
 702         // unset lights and reset colors of user buttons.
 703
 704         for (XMLNodeList::const_iterator n = node.children().begin(); n != node.children().end(); ++n) {
 705                 if ((*n)->name() != X_("Button")) {
 706                         continue;
 707                 }
 708                 XMLProperty const* prop = (*n)->property (X_("id"));
 709                 if (!prop) {
 710                         continue;
 711                 }
 712
 713                 FP8Controls::ButtonId id;
 714                 if (!_ctrls.button_name_to_enum (prop->value(), id)) {
 715                         continue;
 716                 }
 717
 718                 prop = (*n)->property (X_("press"));
 719                 if (prop) {
 720                         set_button_action (id, true, prop->value());
 721                 }
 722                 prop = (*n)->property (X_("release"));
 723                 if (prop) {
 724                         set_button_action (id, false, prop->value());
 725                 }
 726         }
 727
 728         return 0;
 729 }
 730
 731 /* ****************************************************************************
 732  * Stripable Assignment
 733  */
 734
 735 static bool flt_audio_track (boost::shared_ptr<Stripable> s) {
 736         return boost::dynamic_pointer_cast<AudioTrack>(s) != 0;
 737 }
 738
 739 static bool flt_midi_track (boost::shared_ptr<Stripable> s) {
 740         return boost::dynamic_pointer_cast<MidiTrack>(s) != 0;
 741 }
 742
 743 static bool flt_bus (boost::shared_ptr<Stripable> s) {
 744         if (boost::dynamic_pointer_cast<Route>(s) == 0) {
 745                 return false;
 746         }
 747 #ifdef MIXBUS
 748         if (s->mixbus () == 0) {
 749                 return false;
 750         }
 751 #endif
 752         return boost::dynamic_pointer_cast<Track>(s) == 0;
 753 }
 754
 755 static bool flt_auxbus (boost::shared_ptr<Stripable> s) {
 756         if (boost::dynamic_pointer_cast<Route>(s) == 0) {
 757                 return false;
 758         }
 759 #ifdef MIXBUS
 760         if (s->mixbus () > 0) {
 761                 return false;
 762         }
 763 #endif
 764         return boost::dynamic_pointer_cast<Track>(s) == 0;
 765 }
 766
 767 static bool flt_vca (boost::shared_ptr<Stripable> s) {
 768         return boost::dynamic_pointer_cast<VCA>(s) != 0;
 769 }
 770
 771 static bool flt_selected (boost::shared_ptr<Stripable> s) {
 772         return s->is_selected ();
 773 }
 774
 775 static bool flt_mains (boost::shared_ptr<Stripable> s) {
 776         return (s->is_master() || s->is_monitor());
 777 }
 778
 779 static bool flt_all (boost::shared_ptr<Stripable> s) {
 780         return true;
 781 }
 782
 783 static bool flt_rec_armed (boost::shared_ptr<Stripable> s) {
 784         boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track>(s);
 785         if (!t) {
 786                 return false;
 787         }
 788         return t->rec_enable_control ()->get_value () > 0.;
 789 }
 790
 791 static bool flt_instrument (boost::shared_ptr<Stripable> s) {
 792         boost::shared_ptr<Route> r = boost::dynamic_pointer_cast<Route>(s);
 793         if (!r) {
 794                 return false;
 795         }
 796         return 0 != r->the_instrument ();
 797 }
 798
 799 struct FP8SortByNewDisplayOrder
 800 {
 801         // return (a < b)
 802         bool operator () (const boost::shared_ptr<Stripable> & a, const boost::shared_ptr<Stripable> & b) const
 803         {
 804                 if (a->presentation_info().flags () == b->presentation_info().flags ()) {
 805                         return a->presentation_info().order() < b->presentation_info().order();
 806                 }
 807
 808                 int cmp_a = 0;
 809                 int cmp_b = 0;
 810
 811                 if (a->presentation_info().flags () & ARDOUR::PresentationInfo::VCA) {
 812                         cmp_a = 1;
 813                 }
 814 #ifdef MIXBUS
 815                 else if (a->presentation_info().flags () & ARDOUR::PresentationInfo::MasterOut) {
 816                         cmp_a = 3;
 817                 }
 818                 else if (a->presentation_info().flags () & ARDOUR::PresentationInfo::Mixbus || a->mixbus()) {
 819                         cmp_a = 2;
 820                 }
 821 #endif
 822
 823                 if (b->presentation_info().flags () & ARDOUR::PresentationInfo::VCA) {
 824                         cmp_b = 1;
 825                 }
 826 #ifdef MIXBUS
 827                 else if (b->presentation_info().flags () & ARDOUR::PresentationInfo::MasterOut) {
 828                         cmp_b = 3;
 829                 }
 830                 else if (b->presentation_info().flags () & ARDOUR::PresentationInfo::Mixbus || b->mixbus()) {
 831                         cmp_b = 2;
 832                 }
 833 #endif
 834
 835 #ifdef MIXBUS
 836                 // this can happen with older MB sessions (no PresentationInfo::Mixbus flag)
 837                 if (cmp_a == cmp_b) {
 838                         return a->presentation_info().order() < b->presentation_info().order();
 839                 }
 840 #endif
 841                 return cmp_a < cmp_b;
 842         }
 843 };
 844
 845 void
 846 FaderPort8::filter_stripables (StripableList& strips) const
 847 {
 848         typedef bool (*FilterFunction)(boost::shared_ptr<Stripable>);
 849         FilterFunction flt;
 850
 851         bool allow_master = false;
 852         bool allow_monitor = false;
 853
 854         switch (_ctrls.mix_mode ()) {
 855                 case MixAudio:
 856                         flt = &flt_audio_track;
 857                         break;
 858                 case MixInstrument:
 859                         flt = &flt_instrument;
 860                         break;
 861                 case MixBus:
 862                         flt = &flt_bus;
 863                         break;
 864                 case MixVCA:
 865                         flt = &flt_vca;
 866                         break;
 867                 case MixMIDI:
 868                         flt = &flt_midi_track;
 869                         break;
 870                 case MixUser:
 871                         allow_master = true;
 872                         flt = &flt_selected;
 873                         break;
 874                 case MixOutputs:
 875                         allow_master = true;
 876                         allow_monitor = true;
 877                         flt = &flt_mains;
 878                         break;
 879                 case MixInputs:
 880                         flt = &flt_rec_armed;
 881                         break;
 882                 case MixFX:
 883                         flt = &flt_auxbus;
 884                         break;
 885                 case MixAll:
 886                         allow_master = true;
 887                         flt = &flt_all;
 888                         break;
 889         }
 890
 891         StripableList all;
 892         session->get_stripables (all);
 893
 894         for (StripableList::const_iterator s = all.begin(); s != all.end(); ++s) {
 895                 if ((*s)->is_auditioner ()) { continue; }
 896                 if ((*s)->is_hidden ()) { continue; }
 897
 898                 if (!allow_master  && (*s)->is_master ()) { continue; }
 899                 if (!allow_monitor && (*s)->is_monitor ()) { continue; }
 900
 901                 if ((*flt)(*s)) {
 902                         strips.push_back (*s);
 903                 }
 904         }
 905         strips.sort (FP8SortByNewDisplayOrder());
 906 }
 907
 908 /* Track/Pan mode: assign stripable to strips */
 909 void
 910 FaderPort8::assign_stripables (bool select_only)
 911 {
 912         StripableList strips;
 913         filter_stripables (strips);
 914
 915         if (!select_only) {
 916                 set_periodic_display_mode (FP8Strip::Stripables);
 917         }
 918
 919         int n_strips = strips.size();
 920         _channel_off = std::min (_channel_off, n_strips - 8);
 921         _channel_off = std::max (0, _channel_off);
 922
 923         uint8_t id = 0;
 924         int skip = _channel_off;
 925         for (StripableList::const_iterator s = strips.begin(); s != strips.end(); ++s) {
 926                 if (skip > 0) {
 927                         --skip;
 928                         continue;
 929                 }
 930
 931                 _assigned_strips[*s] = id;
 932                 (*s)->DropReferences.connect (assigned_stripable_connections, MISSING_INVALIDATOR,
 933                                 boost::bind (&FaderPort8::notify_stripable_added_or_removed, this), this);
 934
 935                 (*s)->PropertyChanged.connect (assigned_stripable_connections, MISSING_INVALIDATOR,
 936                                 boost::bind (&FaderPort8::notify_stripable_property_changed, this, boost::weak_ptr<Stripable> (*s), _1), this);
 937                 (*s)->presentation_info ().PropertyChanged.connect (assigned_stripable_connections, MISSING_INVALIDATOR,
 938                                 boost::bind (&FaderPort8::notify_stripable_property_changed, this, boost::weak_ptr<Stripable> (*s), _1), this);
 939
 940                 if (select_only) {
 941                         _ctrls.strip(id).set_text_line (3, (*s)->name (), true);
 942                         _ctrls.strip(id).select_button ().set_color ((*s)->presentation_info ().color());
 943                         /* update selection lights */
 944                         _ctrls.strip(id).select_button ().set_active ((*s)->is_selected ());
 945                         _ctrls.strip(id).select_button ().set_blinking (*s == first_selected_stripable ());
 946                 } else {
 947                         _ctrls.strip(id).set_stripable (*s, _ctrls.fader_mode() == ModePan);
 948                 }
 949
 950                  boost::function<void ()> cb (boost::bind (&FaderPort8::select_strip, this, boost::weak_ptr<Stripable> (*s)));
 951                  _ctrls.strip(id).set_select_cb (cb);
 952
 953                 if (++id == 8) {
 954                         break;
 955                 }
 956         }
 957         for (; id < 8; ++id) {
 958                 _ctrls.strip(id).unset_controllables (select_only ? (FP8Strip::CTRL_SELECT | FP8Strip::CTRL_TEXT3) : FP8Strip::CTRL_ALL);
 959         }
 960 }
 961
 962 void
 963 FaderPort8::assign_processor_ctrls ()
 964 {
 965         if (_proc_params.size() == 0) {
 966                 _ctrls.set_fader_mode (ModeTrack);
 967                 return;
 968         }
 969         set_periodic_display_mode (FP8Strip::PluginParam);
 970
 971         std::vector <ProcessorCtrl*> toggle_params;
 972         std::vector <ProcessorCtrl*> slider_params;
 973
 974         for ( std::list <ProcessorCtrl>::iterator i = _proc_params.begin(); i != _proc_params.end(); ++i) {
 975                 if ((*i).ac->toggled()) {
 976                         toggle_params.push_back (&(*i));
 977                 } else {
 978                         slider_params.push_back (&(*i));
 979                 }
 980         }
 981
 982         int n_parameters = std::max (toggle_params.size(), slider_params.size());
 983
 984         _parameter_off = std::min (_parameter_off, n_parameters - 8);
 985         _parameter_off = std::max (0, _parameter_off);
 986
 987         uint8_t id = 0;
 988         for (size_t i = _parameter_off; i < (size_t)n_parameters; ++i) {
 989                 if (i >= toggle_params.size ()) {
 990                         _ctrls.strip(id).unset_controllables (FP8Strip::CTRL_ALL & ~FP8Strip::CTRL_FADER & ~FP8Strip::CTRL_TEXT0 & ~FP8Strip::CTRL_TEXT1);
 991                 }
 992                 else if (i >= slider_params.size ()) {
 993                         _ctrls.strip(id).unset_controllables (FP8Strip::CTRL_ALL & ~FP8Strip::CTRL_SELECT & ~FP8Strip::CTRL_TEXT3);
 994                 } else {
 995                         _ctrls.strip(id).unset_controllables (FP8Strip::CTRL_ALL & ~FP8Strip::CTRL_FADER & ~FP8Strip::CTRL_TEXT0 & ~FP8Strip::CTRL_TEXT1 & ~FP8Strip::CTRL_SELECT & ~FP8Strip::CTRL_TEXT3);
 996                 }
 997
 998                 if (i < slider_params.size ()) {
 999                         _ctrls.strip(id).set_fader_controllable (slider_params[i]->ac);
1000                         _ctrls.strip(id).set_text_line (0, slider_params[i]->name);
1001                 }
1002                 if (i < toggle_params.size ()) {
1003                         _ctrls.strip(id).set_select_controllable (toggle_params[i]->ac);
1004                         _ctrls.strip(id).set_text_line (3, toggle_params[i]->name, true);
1005                 }
1006                  if (++id == 8) {
1007                          break;
1008                  }
1009         }
1010
1011         // clear remaining
1012         for (; id < 8; ++id) {
1013                 _ctrls.strip(id).unset_controllables ();
1014         }
1015 }
1016
1017 void
1018 FaderPort8::build_well_known_processor_ctrls (boost::shared_ptr<Stripable> s, bool eq)
1019 {
1020 #define PUSH_BACK_NON_NULL(N, C) do {if (C) { _proc_params.push_back (ProcessorCtrl (N, C)); }} while (0)
1021
1022         _proc_params.clear ();
1023         if (eq) {
1024                 int cnt = s->eq_band_cnt();
1025                 PUSH_BACK_NON_NULL ("Enable", s->eq_enable_controllable ());
1026                 PUSH_BACK_NON_NULL ("HPF", s->eq_hpf_controllable ());
1027                 for (int band = 0; band < cnt; ++band) {
1028                         std::string bn = s->eq_band_name (band);
1029                         PUSH_BACK_NON_NULL (string_compose ("Gain %1", bn), s->eq_gain_controllable (band));
1030                         PUSH_BACK_NON_NULL (string_compose ("Freq %1", bn), s->eq_freq_controllable (band));
1031                         PUSH_BACK_NON_NULL (string_compose ("Band %1", bn), s->eq_q_controllable (band));
1032                         PUSH_BACK_NON_NULL (string_compose ("Shape %1", bn), s->eq_shape_controllable (band));
1033                 }
1034         } else {
1035                 PUSH_BACK_NON_NULL ("Enable", s->comp_enable_controllable ());
1036                 PUSH_BACK_NON_NULL ("Threshold", s->comp_threshold_controllable ());
1037                 PUSH_BACK_NON_NULL ("Speed", s->comp_speed_controllable ());
1038                 PUSH_BACK_NON_NULL ("Mode", s->comp_mode_controllable ());
1039         }
1040 }
1041
1042 void
1043 FaderPort8::select_plugin (int num)
1044 {
1045         // make sure drop_ctrl_connections() was called
1046         assert (_proc_params.size() == 0 && _showing_well_known == 0);
1047
1048         boost::shared_ptr<Route> r = boost::dynamic_pointer_cast<Route> (first_selected_stripable());
1049         if (!r) {
1050                 _ctrls.set_fader_mode (ModeTrack);
1051                 return;
1052         }
1053         if (num < 0) {
1054                 build_well_known_processor_ctrls (r, num == -1);
1055                 assign_processor_ctrls ();
1056                 _showing_well_known = num;
1057                 return;
1058         }
1059         _showing_well_known = 0;
1060
1061         boost::shared_ptr<Processor> proc = r->nth_plugin (num);
1062         if (!proc) {
1063                 _ctrls.set_fader_mode (ModeTrack);
1064                 return;
1065         }
1066
1067         // switching to "Mode Track" -> calls FaderPort8::notify_fader_mode_changed()
1068         // which drops the references, disconnects the signal and re-spills tracks
1069         proc->DropReferences.connect (processor_connections, MISSING_INVALIDATOR, boost::bind (&FP8Controls::set_fader_mode, &_ctrls, ModeTrack), this);
1070
1071         // build params
1072         _proc_params.clear();
1073         set<Evoral::Parameter> p = proc->what_can_be_automated ();
1074         for (set<Evoral::Parameter>::iterator i = p.begin(); i != p.end(); ++i) {
1075                 std::string n = proc->describe_parameter (*i);
1076                 if (n == "hidden") {
1077                         continue;
1078                 }
1079                 _proc_params.push_back (ProcessorCtrl (n, proc->automation_control (*i)));
1080         }
1081
1082         // TODO: open plugin GUI  if (_proc_params.size() > 0)
1083
1084         // display
1085         assign_processor_ctrls ();
1086 }
1087
1088 /* short 4 chars at most */
1089 static std::string plugintype (ARDOUR::PluginType t) {
1090         switch (t) {
1091                 case AudioUnit:
1092                         return "AU";
1093                 case LADSPA:
1094                         return "LV1";
1095                 case LV2:
1096                         return "LV2";
1097                 case Windows_VST:
1098                 case LXVST:
1099                 case MacVST:
1100                         return "VST";
1101                 case Lua:
1102                         return "Lua";
1103                 default:
1104                         break;
1105         }
1106         return enum_2_string (t);
1107 }
1108
1109 void
1110 FaderPort8::spill_plugins ()
1111 {
1112         boost::shared_ptr<Route> r = boost::dynamic_pointer_cast<Route> (first_selected_stripable());
1113         if (!r) {
1114                 _ctrls.set_fader_mode (ModeTrack);
1115                 return;
1116         }
1117
1118         drop_ctrl_connections ();
1119
1120         // switching to "Mode Track" -> calls FaderPort8::notify_fader_mode_changed()
1121         // which drops the references, disconnects the signal and re-spills tracks
1122         r->DropReferences.connect (processor_connections, MISSING_INVALIDATOR, boost::bind (&FP8Controls::set_fader_mode, &_ctrls, ModeTrack), this);
1123
1124         // update when processor change
1125         r->processors_changed.connect (processor_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::spill_plugins, this), this);
1126
1127         // count available
1128         boost::shared_ptr<Processor> proc;
1129
1130         std::vector<uint32_t> procs;
1131
1132         for (uint32_t i = 0; 0 != (proc = r->nth_plugin (i)); ++i) {
1133                 if (!proc->display_to_user ()) {
1134                         continue;
1135                 }
1136                 int n_controls = 0;
1137                 set<Evoral::Parameter> p = proc->what_can_be_automated ();
1138                 for (set<Evoral::Parameter>::iterator i = p.begin(); i != p.end(); ++i) {
1139                         std::string n = proc->describe_parameter (*i);
1140                         if (n == "hidden") {
1141                                 continue;
1142                         }
1143                         ++n_controls;
1144                 }
1145                 if (n_controls > 0) {
1146                         procs.push_back (i);
1147                 }
1148         }
1149
1150         int n_plugins = procs.size();
1151         int spillwidth = 8;
1152         bool have_well_known_eq = false;
1153         bool have_well_known_comp = false;
1154
1155         // reserve last slot(s) for "well-known"
1156         if (r->eq_band_cnt() > 0) {
1157                 --spillwidth;
1158                 have_well_known_eq = true;
1159         }
1160         if (r->comp_enable_controllable ()) {
1161                 --spillwidth;
1162                 have_well_known_comp = true;
1163         }
1164
1165         if (n_plugins == 0 && !have_well_known_eq && !have_well_known_comp) {
1166                 _ctrls.set_fader_mode (ModeTrack);
1167                 return;
1168         }
1169
1170         set_periodic_display_mode (FP8Strip::PluginSelect);
1171
1172         _plugin_off = std::min (_plugin_off, n_plugins - spillwidth);
1173         _plugin_off = std::max (0, _plugin_off);
1174
1175         uint8_t id = 0;
1176         for (uint32_t i = _plugin_off; ; ++i) {
1177                 if (i >= procs.size()) {
1178                         break;
1179                 }
1180                 boost::shared_ptr<Processor> proc = r->nth_plugin (procs[i]);
1181                 if (!proc) {
1182                         break;
1183                 }
1184                 boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (proc);
1185                 boost::function<void ()> cb (boost::bind (&FaderPort8::select_plugin, this, i));
1186
1187                 _ctrls.strip(id).unset_controllables (FP8Strip::CTRL_ALL & ~FP8Strip::CTRL_TEXT & ~FP8Strip::CTRL_SELECT);
1188                 _ctrls.strip(id).set_select_cb (cb);
1189                 _ctrls.strip(id).select_button ().set_color (0x00ff00ff);
1190                 _ctrls.strip(id).select_button ().set_active (true /*proc->enabled()*/);
1191                 _ctrls.strip(id).select_button ().set_blinking (false);
1192                 _ctrls.strip(id).set_text_line (0, proc->name());
1193                 _ctrls.strip(id).set_text_line (1, pi->plugin()->maker());
1194                 _ctrls.strip(id).set_text_line (2, plugintype (pi->type()));
1195                 _ctrls.strip(id).set_text_line (3, "");
1196
1197                 if (++id == spillwidth) {
1198                         break;
1199                 }
1200         }
1201         // clear remaining
1202         for (; id < spillwidth; ++id) {
1203                 _ctrls.strip(id).unset_controllables ();
1204         }
1205
1206         if (have_well_known_comp) {
1207                         assert (id < 8);
1208                  boost::function<void ()> cb (boost::bind (&FaderPort8::select_plugin, this, -2));
1209                  _ctrls.strip(id).unset_controllables (FP8Strip::CTRL_ALL & ~FP8Strip::CTRL_TEXT & ~FP8Strip::CTRL_SELECT);
1210                  _ctrls.strip(id).set_select_cb (cb);
1211                  _ctrls.strip(id).select_button ().set_color (0xffff00ff);
1212                  _ctrls.strip(id).select_button ().set_active (true);
1213                  _ctrls.strip(id).select_button ().set_blinking (false);
1214                  _ctrls.strip(id).set_text_line (0, "Comp");
1215                  _ctrls.strip(id).set_text_line (1, "Built-In");
1216                  _ctrls.strip(id).set_text_line (2, "--");
1217                  _ctrls.strip(id).set_text_line (3, "");
1218                  ++id;
1219         }
1220         if (have_well_known_eq) {
1221                         assert (id < 8);
1222                  boost::function<void ()> cb (boost::bind (&FaderPort8::select_plugin, this, -1));
1223                  _ctrls.strip(id).unset_controllables (FP8Strip::CTRL_ALL & ~FP8Strip::CTRL_TEXT & ~FP8Strip::CTRL_SELECT);
1224                  _ctrls.strip(id).set_select_cb (cb);
1225                  _ctrls.strip(id).select_button ().set_color (0xffff00ff);
1226                  _ctrls.strip(id).select_button ().set_active (true);
1227                  _ctrls.strip(id).select_button ().set_blinking (false);
1228                  _ctrls.strip(id).set_text_line (0, "EQ");
1229                  _ctrls.strip(id).set_text_line (1, "Built-In");
1230                  _ctrls.strip(id).set_text_line (2, "--");
1231                  _ctrls.strip(id).set_text_line (3, "");
1232                  ++id;
1233         }
1234         assert (id == 8);
1235 }
1236
1237 void
1238 FaderPort8::assign_sends ()
1239 {
1240         boost::shared_ptr<Stripable> s = first_selected_stripable();
1241         if (!s) {
1242                 _ctrls.set_fader_mode (ModeTrack);
1243                 return;
1244         }
1245
1246         int n_sends = 0;
1247         while (0 != s->send_level_controllable (n_sends)) {
1248                 ++n_sends;
1249         }
1250         if (n_sends == 0) {
1251                 _ctrls.set_fader_mode (ModeTrack);
1252                 return;
1253         }
1254
1255         drop_ctrl_connections ();
1256         s->DropReferences.connect (processor_connections, MISSING_INVALIDATOR, boost::bind (&FP8Controls::set_fader_mode, &_ctrls, ModeTrack), this);
1257
1258         set_periodic_display_mode (FP8Strip::SendDisplay);
1259
1260         _plugin_off = std::min (_plugin_off, n_sends - 8);
1261         _plugin_off = std::max (0, _plugin_off);
1262
1263         uint8_t id = 0;
1264         int skip = _parameter_off;
1265         for (uint32_t i = _plugin_off; ; ++i) {
1266                 if (skip > 0) {
1267                         --skip;
1268                         continue;
1269                 }
1270                 boost::shared_ptr<AutomationControl> send = s->send_level_controllable (i);
1271                 if (!send) {
1272                         break;
1273                 }
1274
1275                 _ctrls.strip(id).unset_controllables (FP8Strip::CTRL_ALL & ~FP8Strip::CTRL_FADER & ~FP8Strip::CTRL_TEXT0 & ~FP8Strip::CTRL_TEXT1 & ~FP8Strip::CTRL_TEXT3 & ~FP8Strip::CTRL_SELECT);
1276                 _ctrls.strip(id).set_fader_controllable (send);
1277                 _ctrls.strip(id).set_text_line (0, s->send_name (i));
1278                 _ctrls.strip(id).set_mute_controllable (s->send_enable_controllable (i));
1279                 _ctrls.strip(id).set_solo_controllable (s->master_send_enable_controllable ()); // XXX
1280
1281                 if (++id == 8) {
1282                         break;
1283                 }
1284         }
1285         // clear remaining
1286         for (; id < 8; ++id) {
1287                 _ctrls.strip(id).unset_controllables (FP8Strip::CTRL_ALL & ~FP8Strip::CTRL_TEXT3 & ~FP8Strip::CTRL_SELECT);
1288         }
1289         /* set select buttons */
1290         assign_stripables (true);
1291 }
1292
1293 void
1294 FaderPort8::set_periodic_display_mode (FP8Strip::DisplayMode m)
1295 {
1296         for (uint8_t id = 0; id < 8; ++id) {
1297                 _ctrls.strip(id).set_periodic_display_mode (m);
1298         }
1299 }
1300
1301 void
1302 FaderPort8::assign_strips (bool reset_bank)
1303 {
1304         if (reset_bank) {
1305                 _channel_off = 0;
1306         }
1307
1308         _assigned_strips.clear ();
1309         assigned_stripable_connections.drop_connections ();
1310
1311         FaderMode fadermode = _ctrls.fader_mode ();
1312         switch (fadermode) {
1313                 case ModeTrack:
1314                 case ModePan:
1315                         assign_stripables ();
1316                         gui_track_selection_changed (); // update selection, automation-state
1317                         break;
1318                 case ModePlugins:
1319                         if (_proc_params.size() > 0) {
1320                                 assign_processor_ctrls ();
1321                         } else {
1322                                 spill_plugins ();
1323                         }
1324                         break;
1325                 case ModeSend:
1326                         assign_sends ();
1327                         break;
1328         }
1329 }
1330
1331
1332 void
1333 FaderPort8::drop_ctrl_connections ()
1334 {
1335         _proc_params.clear();
1336         processor_connections.drop_connections ();
1337         _showing_well_known = 0;
1338 }
1339
1340 void
1341 FaderPort8::notify_fader_mode_changed ()
1342 {
1343         FaderMode fadermode = _ctrls.fader_mode ();
1344
1345         boost::shared_ptr<Stripable> s = first_selected_stripable();
1346         if (!s && (fadermode == ModePlugins || fadermode == ModeSend)) {
1347                 _ctrls.set_fader_mode (ModeTrack);
1348                 return;
1349         }
1350
1351         drop_ctrl_connections ();
1352
1353         switch (fadermode) {
1354                 case ModeTrack:
1355                 case ModePan:
1356                         break;
1357                 case ModePlugins:
1358                 case ModeSend:
1359                         _plugin_off = 0;
1360                         _parameter_off = 0;
1361                         // force unset rec-arm button, see also FaderPort8::button_arm
1362                         _ctrls.button (FP8Controls::BtnArm).set_active (false);
1363                         ARMButtonChange (false);
1364                         break;
1365         }
1366         assign_strips (false);
1367         notify_automation_mode_changed ();
1368 }
1369
1370 /* ****************************************************************************
1371  * Assigned Stripable Callbacks
1372  */
1373
1374 void
1375 FaderPort8::notify_stripable_added_or_removed ()
1376 {
1377         /* called by
1378          *  - DropReferences
1379          *  - session->RouteAdded
1380          *  - PresentationInfo::Change
1381          *    - Properties::hidden
1382          *    - Properties::order
1383          */
1384         assign_strips (false);
1385 }
1386
1387 /* functor for FP8Strip's select button */
1388 void
1389 FaderPort8::select_strip (boost::weak_ptr<Stripable> ws)
1390 {
1391         boost::shared_ptr<Stripable> s = ws.lock();
1392         if (!s) {
1393                 return;
1394         }
1395         if (shift_mod ()) {
1396                 if (s->is_selected ()) {
1397                         RemoveStripableFromSelection (s);
1398                 } else {
1399                         SetStripableSelection (s);
1400                 }
1401                 return;
1402         }
1403         if (s->is_selected () && s != first_selected_stripable ()) {
1404                 set_first_selected_stripable (s);
1405                 gui_track_selection_changed ();
1406         } else {
1407                 ToggleStripableSelection (s);
1408         }
1409 }
1410
1411 /* called from static PresentationInfo::Change */
1412 void
1413 FaderPort8::notify_pi_property_changed (const PropertyChange& what_changed)
1414 {
1415         if (what_changed.contains (Properties::hidden)) {
1416                 notify_stripable_added_or_removed ();
1417         }
1418         if (what_changed.contains (Properties::order)) {
1419                 notify_stripable_added_or_removed ();
1420         }
1421         // Properties::selected is handled via StripableSelectionChanged
1422 }
1423
1424 void
1425 FaderPort8::notify_stripable_property_changed (boost::weak_ptr<Stripable> ws, const PropertyChange& what_changed)
1426 {
1427         boost::shared_ptr<Stripable> s = ws.lock();
1428         if (!s) {
1429                 assert (0); // this should not happen
1430                 return;
1431         }
1432         assert (_assigned_strips.find (s) != _assigned_strips.end());
1433         uint8_t id = _assigned_strips[s];
1434
1435         if (what_changed.contains (Properties::color)) {
1436                 _ctrls.strip(id).select_button ().set_color (s->presentation_info ().color());
1437         }
1438
1439         if (what_changed.contains (Properties::name)) {
1440                 switch (_ctrls.fader_mode ()) {
1441                         case ModeSend:
1442                                 _ctrls.strip(id).set_text_line (0, s->name());
1443                         case ModeTrack:
1444                         case ModePan:
1445                                 _ctrls.strip(id).set_text_line (3, s->name(), true);
1446                                 break;
1447                         case ModePlugins:
1448                                 assert (0);
1449                                 break;
1450                 }
1451         }
1452 }
1453
1454 void
1455 FaderPort8::gui_track_selection_changed (/*ARDOUR::StripableNotificationListPtr*/)
1456 {
1457         automation_state_connections.drop_connections();
1458
1459         switch (_ctrls.fader_mode ()) {
1460                 case ModePlugins:
1461                         if (_proc_params.size () > 0 && _showing_well_known < 0) {
1462                                 /* w/well-known -> re-assign to new strip */
1463                                 int wk = _showing_well_known;
1464                                 drop_ctrl_connections ();
1465                                 select_plugin (wk);
1466                         }
1467                         return;
1468                 case ModeSend:
1469                         _plugin_off = 0;
1470                         assign_sends ();
1471                         return;
1472                 case ModeTrack:
1473                 case ModePan:
1474                         break;
1475         }
1476
1477         /* update selection lights */
1478         for (StripAssignmentMap::const_iterator i = _assigned_strips.begin(); i != _assigned_strips.end(); ++i) {
1479                 boost::shared_ptr<ARDOUR::Stripable> s = i->first;
1480                 uint8_t id = i->second;
1481                 bool sel = s->is_selected ();
1482                 _ctrls.strip(id).select_button ().set_active (sel);
1483                 _ctrls.strip(id).select_button ().set_blinking (sel && s == first_selected_stripable ());
1484         }
1485
1486         /* track automation-mode of primary selection */
1487         boost::shared_ptr<Stripable> s = first_selected_stripable();
1488         if (s) {
1489                 boost::shared_ptr<AutomationControl> ac;
1490                 ac = s->gain_control();
1491                 if (ac && ac->alist()) {
1492                         ac->alist()->automation_state_changed.connect (automation_state_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_automation_mode_changed, this), this);
1493                 }
1494                 ac = s->pan_azimuth_control();
1495                 if (ac && ac->alist()) {
1496                         ac->alist()->automation_state_changed.connect (automation_state_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_automation_mode_changed, this), this);
1497                 }
1498         }
1499         /* set lights */
1500         notify_automation_mode_changed ();
1501 }
1502
1503
1504 /* ****************************************************************************
1505  * Banking
1506  */
1507
1508 void
1509 FaderPort8::move_selected_into_view ()
1510 {
1511         boost::shared_ptr<Stripable> selected = first_selected_stripable ();
1512         if (!selected) {
1513                 return;
1514         }
1515
1516         StripableList strips;
1517         filter_stripables (strips);
1518
1519         StripableList::iterator it = std::find (strips.begin(), strips.end(), selected);
1520         if (it == strips.end()) {
1521                 return;
1522         }
1523         int off = std::distance (strips.begin(), it);
1524
1525         if (_channel_off <= off && off < _channel_off + 8) {
1526                 return;
1527         }
1528
1529         if (_channel_off > off) {
1530                 _channel_off = off;
1531         } else {
1532                 _channel_off = off - 7;
1533         }
1534         assign_strips (false);
1535 }
1536
1537 void
1538 FaderPort8::select_prev_next (bool next)
1539 {
1540         StripableList strips;
1541         filter_stripables (strips);
1542
1543         boost::shared_ptr<Stripable> selected = first_selected_stripable ();
1544         if (!selected) {
1545                 if (strips.size() > 0) {
1546                         if (next) {
1547                                 SetStripableSelection (strips.front ());
1548                         } else {
1549                                 SetStripableSelection (strips.back ());
1550                         }
1551                 }
1552                 return;
1553         }
1554
1555         bool found = false;
1556         boost::shared_ptr<Stripable> toselect;
1557         for (StripableList::const_iterator s = strips.begin(); s != strips.end(); ++s) {
1558                 if (*s == selected) {
1559                         if (!next) {
1560                                 found = true;
1561                                 break;
1562                         }
1563                         ++s;
1564                         if (s != strips.end()) {
1565                                 toselect = *s;
1566                                 found = true;
1567                         }
1568                         break;
1569                 }
1570                 if (!next) {
1571                         toselect = *s;
1572                 }
1573         }
1574
1575         if (found && toselect) {
1576                 SetStripableSelection (toselect);
1577         }
1578 }
1579
1580 void
1581 FaderPort8::bank (bool down, bool page)
1582 {
1583         int dt = page ? 8 : 1;
1584         if (down) {
1585                 dt *= -1;
1586         }
1587         _channel_off += dt;
1588         assign_strips (false);
1589 }
1590
1591 void
1592 FaderPort8::bank_param (bool down, bool page)
1593 {
1594         int dt = page ? 8 : 1;
1595         if (down) {
1596                 dt *= -1;
1597         }
1598         _channel_off += dt;
1599         switch (_ctrls.fader_mode ()) {
1600                 case ModePlugins:
1601                         if (_proc_params.size() > 0) {
1602                                 _parameter_off += dt;
1603                                 assign_processor_ctrls ();
1604                         } else {
1605                                 _plugin_off += dt;
1606                                 spill_plugins ();
1607                         }
1608                         break;
1609                 case ModeSend:
1610                         assign_sends ();
1611                         break;
1612                 default:
1613                         break;
1614         }
1615 }