libs/ardour/luabindings.cc

   1 /*
   2     Copyright (C) 2016 Robin Gareus <robin@gareus.org>
   3
   4     This program is free software; you can redistribute it and/or modify it
   5     under the terms of the GNU General Public License as published by the Free
   6     Software Foundation; either version 2 of the License, or (at your option)
   7     any later version.
   8
   9     This program is distributed in the hope that it will be useful, but WITHOUT
  10     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12     for more details.
  13
  14     You should have received a copy of the GNU General Public License along
  15     with this program; if not, write to the Free Software Foundation, Inc.,
  16     675 Mass Ave, Cambridge, MA 02139, USA.
  17 */
  18
  19 #include <glibmm.h>
  20
  21 #include "timecode/bbt_time.h"
  22 #include "pbd/stateful_diff_command.h"
  23 #include "evoral/Control.hpp"
  24 #include "evoral/ControlList.hpp"
  25 #include "evoral/Range.hpp"
  26
  27 #include "ardour/audioengine.h"
  28 #include "ardour/audiosource.h"
  29 #include "ardour/audio_backend.h"
  30 #include "ardour/audio_buffer.h"
  31 #include "ardour/audio_track.h"
  32 #include "ardour/buffer_set.h"
  33 #include "ardour/chan_mapping.h"
  34 #include "ardour/dB.h"
  35 #include "ardour/dsp_filter.h"
  36 #include "ardour/interthread_info.h"
  37 #include "ardour/lua_api.h"
  38 #include "ardour/luabindings.h"
  39 #include "ardour/meter.h"
  40 #include "ardour/midi_track.h"
  41 #include "ardour/playlist.h"
  42 #include "ardour/plugin.h"
  43 #include "ardour/plugin_insert.h"
  44 #include "ardour/runtime_functions.h"
  45 #include "ardour/region.h"
  46 #include "ardour/region_factory.h"
  47 #include "ardour/session.h"
  48 #include "ardour/session_object.h"
  49 #include "ardour/sidechain.h"
  50 #include "ardour/track.h"
  51 #include "ardour/tempo.h"
  52
  53 #include "LuaBridge/LuaBridge.h"
  54
  55 /* Some notes on Lua bindings for libardour and friends
  56  *
  57  * - Prefer factory methods over Contructors whenever possible.
  58  *   Don't expose the constructor method unless required.
  59  *
  60  *   e.g. Don't allow the script to construct a "Track" Object directly
  61  *   but do allow to create a "BBT_TIME" object.
  62  *
  63  * - Do not dereference Shared or Weak Pointers. Pass the pointer to Lua.
  64  * - Define Objects as boost:shared_ptr Object whenever possible.
  65  *
  66  *   Storing a boost::shared_ptr in a Lua-variable keeps the reference
  67  *   until that variable is set to 'nil'.
  68  *   (if the script were to keep a direct pointer to the object instance, the
  69  *   behaviour is undefined if the actual object goes away)
  70  *
  71  *   Methods of the actual class are indirectly exposed,
  72  *   boost::*_ptr get() and ::lock() is implicit when the class is exported
  73  *   as LuaBridge's "WSPtrClass".
  74  */
  75
  76 using namespace ARDOUR;
  77
  78 void
  79 LuaBindings::stddef (lua_State* L)
  80 {
  81         // std::list<std::string>
  82         luabridge::getGlobalNamespace (L)
  83                 .beginNamespace ("C")
  84                 .beginStdList <std::string> ("StringList")
  85                 .endClass ()
  86
  87         // std::vector<std::string>
  88                 .beginStdVector <std::string> ("StringVector")
  89                 .endClass ()
  90
  91         // register float array (float*)
  92                 .registerArray <float> ("FloatArray")
  93
  94         // register float array (int32_t*)
  95                 .registerArray <int32_t> ("IntArray")
  96
  97         // TODO std::set
  98                 .endNamespace ();
  99 }
 100
 101 void
 102 LuaBindings::common (lua_State* L)
 103 {
 104         luabridge::getGlobalNamespace (L)
 105                 .beginNamespace ("PBD")
 106                 .beginClass <PBD::ID> ("ID")
 107                 .addConstructor <void (*) (std::string)> ()
 108                 .addFunction ("to_s", &PBD::ID::to_s) // TODO special case LUA __tostring ?
 109                 .endClass ()
 110
 111                 .beginClass <PBD::Stateful> ("Stateful")
 112                 .addFunction ("properties", &PBD::Stateful::properties)
 113                 .addFunction ("clear_changes", &PBD::Stateful::clear_changes)
 114                 .endClass ()
 115
 116                 .beginWSPtrClass <PBD::Stateful> ("StatefulPtr")
 117                 .addFunction ("properties", &PBD::Stateful::properties)
 118                 .addFunction ("clear_changes", &PBD::Stateful::clear_changes)
 119                 .endClass ()
 120
 121                 .deriveClass <PBD::StatefulDestructible, PBD::Stateful> ("StatefulDestructible")
 122                 .endClass ()
 123
 124                 .deriveWSPtrClass <PBD::StatefulDestructible, PBD::Stateful> ("StatefulDestructiblePtr")
 125                 .endClass ()
 126
 127                 .deriveClass <Command, PBD::StatefulDestructible> ("Command")
 128                 .addFunction ("set_name", &Command::set_name)
 129                 .addFunction ("name", &Command::name)
 130                 .endClass ()
 131
 132                 /* UndoTransaction::add_command() subscribes to DropReferences()
 133                  * and deletes the object.
 134                  *
 135                  * This object cannot be constructed by lua because lua would manage lifetime
 136                  * and delete the object leading to a double free.
 137                  *
 138                  * use Session::add_stateful_diff_command()
 139                  * and Session::abort_reversible_command()
 140                  */
 141                 .deriveClass <PBD::StatefulDiffCommand, Command> ("StatefulDiffCommand")
 142                 .addFunction ("undo", &PBD::StatefulDiffCommand::undo)
 143                 .addFunction ("empty", &PBD::StatefulDiffCommand::empty)
 144                 .endClass ()
 145
 146                 .deriveWSPtrClass <PBD::Controllable, PBD::StatefulDestructible> ("Controllable")
 147                 .addFunction ("get_value", &PBD::Controllable::get_value)
 148                 .endClass ()
 149
 150                 .beginNamespace ("GroupControlDisposition")
 151                 .addConst ("InverseGroup", PBD::Controllable::GroupControlDisposition(PBD::Controllable::InverseGroup))
 152                 .addConst ("NoGroup", PBD::Controllable::GroupControlDisposition(PBD::Controllable::NoGroup))
 153                 .addConst ("UseGroup", PBD::Controllable::GroupControlDisposition(PBD::Controllable::UseGroup))
 154                 .endNamespace ()
 155
 156                 .endNamespace (); // PBD
 157
 158         luabridge::getGlobalNamespace (L)
 159                 .beginNamespace ("Timecode")
 160                 .beginClass <Timecode::BBT_Time> ("BBT_TIME")
 161                 .addConstructor <void (*) (uint32_t, uint32_t, uint32_t)> ()
 162                 .endClass ()
 163                 .endNamespace ();
 164
 165         luabridge::getGlobalNamespace (L)
 166
 167                 .beginNamespace ("Evoral")
 168                 .beginClass <Evoral::Parameter> ("Parameter")
 169                 .addConstructor <void (*) (uint32_t, uint8_t, uint32_t)> ()
 170                 .addFunction ("type", &Evoral::Parameter::type)
 171                 .addFunction ("channel", &Evoral::Parameter::channel)
 172                 .addFunction ("id", &Evoral::Parameter::id)
 173                 .endClass ()
 174
 175                 .beginWSPtrClass <Evoral::ControlList> ("ControlList")
 176                 .addFunction ("add", &Evoral::ControlList::add)
 177                 .endClass ()
 178
 179                 .beginWSPtrClass <Evoral::ControlSet> ("ControlSet")
 180                 .endClass ()
 181
 182                 .beginWSPtrClass <Evoral::Control> ("Control")
 183                 .addFunction ("list", (boost::shared_ptr<Evoral::ControlList>(Evoral::Control::*)())&Evoral::Control::list)
 184                 .endClass ()
 185
 186                 .beginClass <Evoral::ParameterDescriptor> ("ParameterDescriptor")
 187                 .addVoidConstructor ()
 188                 .addData ("lower", &Evoral::ParameterDescriptor::lower)
 189                 .addData ("upper", &Evoral::ParameterDescriptor::upper)
 190                 .addData ("normal", &Evoral::ParameterDescriptor::normal)
 191                 .addData ("toggled", &Evoral::ParameterDescriptor::toggled)
 192                 .endClass ()
 193
 194                 .beginClass <Evoral::Range<framepos_t> > ("Range")
 195                 .addConstructor <void (*) (framepos_t, framepos_t)> ()
 196                 .addData ("from", &Evoral::Range<framepos_t>::from)
 197                 .addData ("to", &Evoral::Range<framepos_t>::to)
 198                 .endClass ()
 199
 200                 .endNamespace () // Evoral
 201
 202                 .beginNamespace ("ARDOUR")
 203
 204                 .beginClass <InterThreadInfo> ("InterThreadInfo")
 205                 .addVoidConstructor ()
 206                 .addData ("done", const_cast<bool InterThreadInfo::*>(&InterThreadInfo::done))
 207                 .addData ("cancel", (bool InterThreadInfo::*)&InterThreadInfo::cancel)
 208                 .addData ("progress", const_cast<float InterThreadInfo::*>(&InterThreadInfo::progress))
 209                 .endClass ()
 210
 211                 .beginClass <AudioRange> ("AudioRange")
 212                 .addConstructor <void (*) (framepos_t, framepos_t, uint32_t)> ()
 213                 .addFunction ("length", &AudioRange::length)
 214                 .addFunction ("equal", &AudioRange::equal)
 215                 .addData ("start", &AudioRange::start)
 216                 .addData ("_end", &AudioRange::end) // XXX "end" is a lua reserved word
 217                 .addData ("id", &AudioRange::id)
 218                 .endClass ()
 219
 220                 .beginWSPtrClass <PluginInfo> ("PluginInfo")
 221                 .addVoidConstructor ()
 222                 .endClass ()
 223
 224                 .beginNamespace ("Route")
 225                 .beginClass <Route::ProcessorStreams> ("ProcessorStreams")
 226                 .addVoidConstructor ()
 227                 .endClass ()
 228                 .endNamespace ()
 229
 230                 .beginClass <ChanMapping> ("ChanMapping")
 231                 .addVoidConstructor ()
 232                 .addFunction ("get", static_cast<uint32_t(ChanMapping::*)(DataType, uint32_t) const>(&ChanMapping::get))
 233                 .addFunction ("set", &ChanMapping::set)
 234                 .addConst ("Invalid", 4294967295) // UINT32_MAX
 235                 .endClass ()
 236
 237                 .beginNamespace ("Properties")
 238                 // templated class definitions
 239                 .beginClass <PBD::PropertyDescriptor<bool> > ("BoolProperty").endClass ()
 240                 .beginClass <PBD::PropertyDescriptor<float> > ("FloatProperty").endClass ()
 241                 .beginClass <PBD::PropertyDescriptor<framepos_t> > ("FrameposProperty").endClass ()
 242                 // actual references (TODO: also expose GQuark for std::set)
 243                 //   ardour/region.h
 244                 .addConst ("Start", &ARDOUR::Properties::start)
 245                 .addConst ("Length", &ARDOUR::Properties::length)
 246                 .addConst ("Position", &ARDOUR::Properties::position)
 247                 .endNamespace ()
 248
 249                 .beginClass <PBD::PropertyChange> ("PropertyChange")
 250                 // TODO add special handling (std::set<PropertyID>), PropertyID is a GQuark.
 251                 // -> direct map to lua table  beginStdSet()A
 252                 //
 253                 // expand templated PropertyDescriptor<T>
 254                 .addFunction ("containsBool", &PBD::PropertyChange::contains<bool>)
 255                 .addFunction ("containsFloat", &PBD::PropertyChange::contains<float>)
 256                 .addFunction ("containsFramePos", &PBD::PropertyChange::contains<framepos_t>)
 257                 .endClass ()
 258
 259                 .beginClass <PBD::PropertyList> ("PropertyList")
 260                 // is-a  std::map<PropertyID, PropertyBase*>
 261                 .endClass ()
 262
 263                 .deriveClass <PBD::OwnedPropertyList, PBD::PropertyList> ("OwnedPropertyList")
 264                 .endClass ()
 265
 266                 .deriveClass <Location, PBD::StatefulDestructible> ("Location")
 267                 .addFunction ("locked", &Location::locked)
 268                 .addFunction ("lock", &Location::lock)
 269                 .addFunction ("start", &Location::start)
 270                 .addFunction ("_end", &Location::end) // XXX "end" is a lua reserved word
 271                 .addFunction ("length", &Location::length)
 272                 .addFunction ("set_start", &Location::set_start)
 273                 .addFunction ("set_end", &Location::set_end)
 274                 .addFunction ("set_length", &Location::set)
 275                 .addFunction ("move_to", &Location::move_to)
 276                 .endClass ()
 277
 278                 .deriveClass <Locations, PBD::StatefulDestructible> ("Location")
 279                 .addFunction ("auto_loop_location", &Locations::auto_loop_location)
 280                 .addFunction ("auto_punch_location", &Locations::auto_punch_location)
 281                 .addFunction ("session_range_location", &Locations::session_range_location)
 282                 .addFunction ("first_mark_after", &Locations::first_mark_after)
 283                 .addFunction ("first_mark_after", &Locations::first_mark_after)
 284                 .endClass ()
 285
 286                 .deriveWSPtrClass <SessionObject, PBD::StatefulDestructible> ("SessionObject")
 287                 /* multiple inheritance is not covered by luabridge,
 288                  * we need explicit casts :( */
 289                 .addCast<PBD::Stateful> ("to_stateful")
 290                 .addCast<PBD::StatefulDestructible> ("to_statefuldestructible")
 291                 .addFunction ("name", &SessionObject::name)
 292                 .endClass ()
 293
 294                 .deriveWSPtrClass <IO, SessionObject> ("IO")
 295                 .addFunction ("active", &IO::active)
 296                 .addFunction ("add_port", &IO::add_port)
 297                 .addFunction ("remove_port", &IO::remove_port)
 298                 .addFunction ("connect", &IO::connect)
 299                 .addFunction ("disconnect", (int (IO::*)(boost::shared_ptr<Port>, std::string, void *))&IO::disconnect)
 300                 .addFunction ("physically_connected", &IO::physically_connected)
 301                 .endClass ()
 302
 303                 .deriveWSPtrClass <Route, SessionObject> ("Route")
 304                 .addCast<Track> ("to_track")
 305                 .addFunction ("set_name", &Route::set_name)
 306                 .addFunction ("comment", &Route::comment)
 307                 .addFunction ("active", &Route::active)
 308                 .addFunction ("set_active", &Route::set_active)
 309                 .addFunction ("nth_plugin", &Route::nth_plugin)
 310                 .addFunction ("add_processor_by_index", &Route::add_processor_by_index)
 311                 .addFunction ("remove_processor", &Route::remove_processor)
 312                 .addFunction ("replace_processor", &Route::replace_processor)
 313                 .addFunction ("n_inputs", &Route::n_inputs)
 314                 .addFunction ("n_outputs", &Route::n_outputs)
 315                 .addFunction ("set_comment", &Route::set_comment)
 316                 .addFunction ("strict_io", &Route::strict_io)
 317                 .addFunction ("set_strict_io", &Route::set_strict_io)
 318                 .addFunction ("reset_plugin_insert", &Route::reset_plugin_insert)
 319                 .addFunction ("customize_plugin_insert", &Route::customize_plugin_insert)
 320                 .addFunction ("add_sidechain", &Route::add_sidechain)
 321                 .addFunction ("remove_sidechain", &Route::remove_sidechain)
 322                 .addFunction ("main_outs", &Route::main_outs)
 323                 .addFunction ("muted", &Route::muted)
 324                 .addFunction ("soloed", &Route::soloed)
 325                 .endClass ()
 326
 327                 .deriveWSPtrClass <Playlist, SessionObject> ("Playlist")
 328                 .addFunction ("region_by_id", &Playlist::region_by_id)
 329                 .addFunction ("data_type", &Playlist::data_type)
 330                 .addFunction ("n_regions", &Playlist::n_regions)
 331                 //.addFunction ("get_extent", &Playlist::get_extent) // pair<framepos_t, framepos_t>
 332                 //.addFunction ("region_list", &Playlist::region_list) // RegionListProperty&
 333                 .addFunction ("add_region", &Playlist::add_region)
 334                 .addFunction ("remove_region", &Playlist::remove_region)
 335                 .addFunction ("regions_at", &Playlist::regions_at)
 336                 .addFunction ("top_region_at", &Playlist::top_region_at)
 337                 .addFunction ("top_unmuted_region_at", &Playlist::top_unmuted_region_at)
 338                 .addFunction ("find_next_region", &Playlist::find_next_region)
 339                 .addFunction ("find_next_region_boundary", &Playlist::find_next_region_boundary)
 340                 .addFunction ("count_regions_at", &Playlist::count_regions_at)
 341                 .addFunction ("regions_with_start_within", &Playlist::regions_with_start_within)
 342                 .addFunction ("regions_with_end_within", &Playlist::regions_with_end_within)
 343                 .addFunction ("raise_region", &Playlist::raise_region)
 344                 .addFunction ("lower_region", &Playlist::lower_region)
 345                 .addFunction ("raise_region_to_top", &Playlist::raise_region_to_top)
 346                 .addFunction ("lower_region_to_bottom", &Playlist::lower_region_to_bottom)
 347                 .addFunction ("duplicate", (void (Playlist::*)(boost::shared_ptr<Region>, framepos_t, framecnt_t, float))&Playlist::duplicate)
 348                 .addFunction ("duplicate_until", &Playlist::duplicate_until)
 349                 .addFunction ("duplicate_range", &Playlist::duplicate_range)
 350                 .addFunction ("combine", &Playlist::combine)
 351                 .addFunction ("uncombine", &Playlist::uncombine)
 352                 .addFunction ("split_region", &Playlist::split_region)
 353                 .addFunction ("split", (void (Playlist::*)(framepos_t))&Playlist::split)
 354                 .addFunction ("cut", (boost::shared_ptr<Playlist> (Playlist::*)(std::list<AudioRange>&, bool))&Playlist::cut)
 355 #if 0
 356                 .addFunction ("copy", &Playlist::copy)
 357                 .addFunction ("paste", &Playlist::paste)
 358 #endif
 359                 .endClass ()
 360
 361                 .deriveWSPtrClass <Track, Route> ("Track")
 362                 .addCast<AudioTrack> ("to_audio_track")
 363                 .addCast<MidiTrack> ("to_midi_track")
 364                 .addFunction ("set_name", &Track::set_name)
 365                 .addFunction ("can_record", &Track::can_record)
 366                 .addFunction ("record_enabled", &Track::record_enabled)
 367                 .addFunction ("record_safe", &Track::record_safe)
 368                 .addFunction ("set_record_enabled", &Track::set_record_enabled)
 369                 .addFunction ("set_record_safe", &Track::set_record_safe)
 370                 .addFunction ("bounceable", &Track::bounceable)
 371                 .addFunction ("bounce", &Track::bounce_range)
 372                 .addFunction ("bounce_range", &Track::bounce_range)
 373                 .addFunction ("playlist", &Track::playlist)
 374                 .endClass ()
 375
 376                 .deriveWSPtrClass <AudioTrack, Track> ("AudioTrack")
 377                 .endClass ()
 378
 379                 .deriveWSPtrClass <MidiTrack, Track> ("MidiTrack")
 380                 .endClass ()
 381
 382                 .deriveWSPtrClass <Region, SessionObject> ("Region")
 383                 /* properties */
 384                 .addFunction ("position", &Region::position)
 385                 .addFunction ("start", &Region::start)
 386                 .addFunction ("length", &Region::length)
 387                 .addFunction ("layer", &Region::layer)
 388                 .addFunction ("data_type", &Region::data_type)
 389                 .addFunction ("stretch", &Region::stretch)
 390                 .addFunction ("shift", &Region::shift)
 391                 .addRefFunction ("sync_offset", &Region::sync_offset)
 392                 .addFunction ("sync_position", &Region::sync_position)
 393                 .addFunction ("hidden", &Region::hidden)
 394                 .addFunction ("muted", &Region::muted)
 395                 .addFunction ("opaque", &Region::opaque)
 396                 .addFunction ("locked", &Region::locked)
 397                 .addFunction ("position_locked", &Region::position_locked)
 398                 .addFunction ("video_locked", &Region::video_locked)
 399                 .addFunction ("valid_transients", &Region::valid_transients)
 400                 .addFunction ("automatic", &Region::automatic)
 401                 .addFunction ("whole_file", &Region::whole_file)
 402                 .addFunction ("captured", &Region::captured)
 403                 .addFunction ("can_move", &Region::can_move)
 404                 .addFunction ("sync_marked", &Region::sync_marked)
 405                 .addFunction ("external", &Region::external)
 406                 .addFunction ("import", &Region::import)
 407                 .addFunction ("covers", &Region::covers)
 408                 .addFunction ("at_natural_position", &Region::at_natural_position)
 409                 .addFunction ("is_compound", &Region::is_compound)
 410                 /* editing operations */
 411                 .addFunction ("set_length", &Region::set_length)
 412                 .addFunction ("set_start", &Region::set_start)
 413                 .addFunction ("set_position", &Region::set_position)
 414                 .addFunction ("set_initial_position", &Region::set_initial_position)
 415                 .addFunction ("nudge_position", &Region::nudge_position)
 416                 .addFunction ("move_to_natural_position", &Region::move_to_natural_position)
 417                 .addFunction ("move_start", &Region::move_start)
 418                 .addFunction ("trim_front", &Region::trim_front)
 419                 .addFunction ("trim_end", &Region::trim_end)
 420                 .addFunction ("trim_to", &Region::trim_to)
 421                 .addFunction ("cut_front", &Region::cut_front)
 422                 .addFunction ("cut_end", &Region::cut_end)
 423                 .addFunction ("raise", &Region::raise)
 424                 .addFunction ("lower", &Region::lower)
 425                 .addFunction ("raise_to_top", &Region::raise_to_top)
 426                 .addFunction ("lower_to_bottom", &Region::lower_to_bottom)
 427                 .addFunction ("set_sync_position", &Region::set_sync_position)
 428                 .addFunction ("clear_sync_position", &Region::clear_sync_position)
 429                 .addFunction ("set_hidden", &Region::set_hidden)
 430                 .addFunction ("set_muted", &Region::set_muted)
 431                 .addFunction ("set_opaque", &Region::set_opaque)
 432                 .addFunction ("set_locked", &Region::set_locked)
 433                 .addFunction ("set_video_locked", &Region::set_video_locked)
 434                 .addFunction ("set_position_locked", &Region::set_position_locked)
 435                 .endClass ()
 436
 437                 .beginWSPtrClass <Source> ("Source")
 438                 .endClass ()
 439
 440                 .beginClass <Plugin::PresetRecord> ("PresetRecord")
 441                 .addData ("uri", &Plugin::PresetRecord::uri, false)
 442                 .addData ("label", &Plugin::PresetRecord::label, false)
 443                 .addData ("user", &Plugin::PresetRecord::user, false)
 444                 .addData ("valid", &Plugin::PresetRecord::valid, false)
 445                 .endClass ()
 446
 447                 .deriveWSPtrClass <Automatable, Evoral::ControlSet> ("Automatable")
 448                 .addFunction ("automation_control", (boost::shared_ptr<AutomationControl>(Automatable::*)(const Evoral::Parameter&, bool))&Automatable::automation_control)
 449                 .endClass ()
 450
 451                 .deriveClass <ParameterDescriptor, Evoral::ParameterDescriptor> ("ParameterDescriptor")
 452                 .addVoidConstructor ()
 453                 .addData ("label", &ParameterDescriptor::label)
 454                 .addData ("logarithmic", &ParameterDescriptor::logarithmic)
 455                 .endClass ()
 456
 457                 .deriveWSPtrClass <Processor, Automatable> ("Processor")
 458                 .addCast<SessionObject> ("to_sessionobject")
 459                 .addCast<PluginInsert> ("to_insert")
 460                 .addCast<SideChain> ("to_sidechain")
 461                 .addCast<IOProcessor> ("to_ioprocessor")
 462                 .addFunction ("display_name", &Processor::display_name)
 463                 .addFunction ("active", &Processor::active)
 464                 .addFunction ("activate", &Processor::activate)
 465                 .addFunction ("deactivate", &Processor::deactivate)
 466                 .addFunction ("control", (boost::shared_ptr<Evoral::Control>(Evoral::ControlSet::*)(const Evoral::Parameter&, bool))&Evoral::ControlSet::control)
 467                 .addFunction ("automation_control", (boost::shared_ptr<AutomationControl>(Automatable::*)(const Evoral::Parameter&, bool))&Automatable::automation_control)
 468                 .endClass ()
 469
 470                 .deriveWSPtrClass <IOProcessor, Processor> ("IOProcessor")
 471                 .addFunction ("natural_input_streams", &IOProcessor::natural_input_streams)
 472                 .addFunction ("natural_output_streams", &IOProcessor::natural_output_streams)
 473                 .addFunction ("input", (boost::shared_ptr<IO>(IOProcessor::*)())&IOProcessor::input)
 474                 .addFunction ("output", (boost::shared_ptr<IO>(IOProcessor::*)())&IOProcessor::output)
 475                 .endClass ()
 476
 477                 .deriveWSPtrClass <SideChain, IOProcessor> ("SideChain")
 478                 .endClass ()
 479
 480                 .deriveWSPtrClass <Delivery, IOProcessor> ("Delivery")
 481                 .endClass ()
 482
 483                 .deriveWSPtrClass <Plugin, PBD::StatefulDestructible> ("Plugin")
 484                 .addFunction ("label", &Plugin::label)
 485                 .addFunction ("name", &Plugin::name)
 486                 .addFunction ("maker", &Plugin::maker)
 487                 .addFunction ("parameter_count", &Plugin::parameter_count)
 488                 .addRefFunction ("nth_parameter", &Plugin::nth_parameter)
 489                 .addFunction ("preset_by_label", &Plugin::preset_by_label)
 490                 .addFunction ("preset_by_uri", &Plugin::preset_by_uri)
 491                 .addFunction ("load_preset", &Plugin::load_preset)
 492                 .addFunction ("parameter_is_input", &Plugin::parameter_is_input)
 493                 .addFunction ("get_docs", &Plugin::get_docs)
 494                 .addFunction ("get_parameter_docs", &Plugin::get_parameter_docs)
 495                 .addRefFunction ("get_parameter_descriptor", &Plugin::get_parameter_descriptor)
 496                 .endClass ()
 497
 498                 .deriveWSPtrClass <PluginInsert, Processor> ("PluginInsert")
 499                 .addFunction ("plugin", &PluginInsert::plugin)
 500                 .addFunction ("activate", &PluginInsert::activate)
 501                 .addFunction ("deactivate", &PluginInsert::deactivate)
 502                 .addFunction ("strict_io_configured", &PluginInsert::strict_io_configured)
 503                 .addFunction ("input_map", (ARDOUR::ChanMapping (PluginInsert::*)(uint32_t) const)&PluginInsert::input_map)
 504                 .addFunction ("output_map", (ARDOUR::ChanMapping (PluginInsert::*)(uint32_t) const)&PluginInsert::output_map)
 505                 .addFunction ("set_input_map", &PluginInsert::set_input_map)
 506                 .addFunction ("set_output_map", &PluginInsert::set_output_map)
 507
 508                 .endClass ()
 509
 510                 .deriveWSPtrClass <AutomationControl, Evoral::Control> ("AutomationControl")
 511                 .addFunction ("automation_state", &AutomationControl::automation_state)
 512                 .addFunction ("set_automation_style", &AutomationControl::set_automation_style)
 513                 .addFunction ("start_touch", &AutomationControl::start_touch)
 514                 .addFunction ("stop_touch", &AutomationControl::stop_touch)
 515                 .addFunction ("get_value", &AutomationControl::get_value)
 516                 .addFunction ("set_value", &AutomationControl::set_value)
 517                 .addFunction ("writable", &AutomationControl::writable)
 518                 .endClass ()
 519
 520                 .deriveWSPtrClass <PluginInsert::PluginControl, AutomationControl> ("PluginControl")
 521                 .endClass ()
 522
 523                 .deriveWSPtrClass <AudioSource, Source> ("AudioSource")
 524                 .addFunction ("readable_length", &AudioSource::readable_length)
 525                 .addFunction ("n_channels", &AudioSource::n_channels)
 526                 .endClass ()
 527
 528                 // <std::list<boost::shared_ptr <AudioTrack> >
 529                 .beginStdList <boost::shared_ptr<AudioTrack> > ("AudioTrackList")
 530                 .endClass ()
 531
 532                 // std::list<boost::shared_ptr <MidiTrack> >
 533                 .beginStdList <boost::shared_ptr<MidiTrack> > ("MidiTrackList")
 534                 .endClass ()
 535
 536                 // RouteList == std::list<boost::shared_ptr<Route> >
 537                 .beginConstStdList <boost::shared_ptr<Route> > ("RouteList")
 538                 .endClass ()
 539
 540                 // boost::shared_ptr<RouteList>
 541                 .beginPtrStdList <boost::shared_ptr<Route> > ("RouteListPtr")
 542                 .endClass ()
 543
 544                 // typedef std::list<boost::weak_ptr <Route> > WeakRouteList
 545                 .beginConstStdList <boost::weak_ptr<Route> > ("WeakRouteList")
 546                 .endClass ()
 547
 548                 // std::list< boost::weak_ptr <AudioSource> >
 549                 .beginConstStdList <boost::weak_ptr<AudioSource> > ("WeakAudioSourceList")
 550                 .endClass ()
 551
 552                 // typedef std::list<boost::shared_ptr<Region> > RegionList
 553                 .beginConstStdList <boost::shared_ptr<Region> > ("RegionList")
 554                 .endClass ()
 555
 556                 // boost::shared_ptr <std::list<boost::shared_ptr<Region> > >
 557                 .beginPtrStdList <boost::shared_ptr<Region> > ("RegionListPtr")
 558                 .endClass ()
 559
 560                 // used by Playlist::cut/copy
 561                 .beginConstStdList <AudioRange> ("AudioRangeList")
 562                 .endClass ()
 563
 564                 .beginConstStdList <Location*> ("LocationList")
 565                 .endClass ()
 566
 567 #if 0  // depends on Evoal:: Note, Beats see note_fixer.h
 568         // typedef Evoral::Note<Evoral::Beats> Note;
 569         // std::set< boost::weak_ptr<Note> >
 570                 .beginStdSet <boost::weak_ptr<Note> > ("WeakNoteSet")
 571                 .endClass ()
 572 #endif
 573
 574         // typedef std::set<boost::weak_ptr<AudioPort> > PortSet
 575                 .beginStdSet <boost::weak_ptr<AudioPort> > ("WeakPortSet")
 576                 .endClass ()
 577
 578         // std::list<boost::weak_ptr<Source> >
 579                 .beginConstStdList <boost::weak_ptr<Source> > ("WeakSourceList")
 580                 .endClass ()
 581
 582                 .beginClass <Tempo> ("Tempo")
 583                 .addConstructor <void (*) (double, double)> ()
 584                 .addFunction ("note_type", &Tempo::note_type)
 585                 .addFunction ("beats_per_minute", &Tempo::beats_per_minute)
 586                 .addFunction ("frames_per_beat", &Tempo::frames_per_beat)
 587                 .endClass ()
 588
 589                 .beginClass <Meter> ("Meter")
 590                 .addConstructor <void (*) (double, double)> ()
 591                 .addFunction ("divisions_per_bar", &Meter::divisions_per_bar)
 592                 .addFunction ("note_divisor", &Meter::note_divisor)
 593                 .addFunction ("frames_per_bar", &Meter::frames_per_bar)
 594                 .addFunction ("frames_per_grid", &Meter::frames_per_grid)
 595                 .endClass ()
 596
 597                 .beginClass <TempoMap> ("TempoMap")
 598                 .addFunction ("add_tempo", &TempoMap::add_tempo)
 599                 .addFunction ("add_meter", &TempoMap::add_meter)
 600                 .endClass ()
 601
 602                 .beginClass <ChanCount> ("ChanCount")
 603                 .addConstructor <void (*) (DataType, uint32_t)> ()
 604                 .addFunction ("get", &ChanCount::get)
 605                 .addFunction ("set", &ChanCount::set)
 606                 .addFunction ("n_audio", &ChanCount::n_audio)
 607                 .addFunction ("n_midi", &ChanCount::n_midi)
 608                 .addFunction ("n_total", &ChanCount::n_total)
 609                 .addFunction ("reset", &ChanCount::reset)
 610                 .endClass()
 611
 612                 .beginClass <DataType> ("DataType")
 613                 .addConstructor <void (*) (std::string)> ()
 614                 .addStaticCFunction ("null",  &LuaAPI::datatype_ctor_null) // "nil" is a lua reseved word
 615                 .addStaticCFunction ("audio", &LuaAPI::datatype_ctor_audio)
 616                 .addStaticCFunction ("midi",  &LuaAPI::datatype_ctor_midi)
 617                 .addFunction ("to_string",  &DataType::to_string) // TODO Lua __tostring
 618                 // TODO add uint32_t cast, add operator==  !=
 619                 .endClass()
 620
 621                 /* libardour enums */
 622                 .beginNamespace ("PluginType")
 623                 .addConst ("AudioUnit", ARDOUR::PluginType(AudioUnit))
 624                 .addConst ("LADSPA", ARDOUR::PluginType(LADSPA))
 625                 .addConst ("LV2", ARDOUR::PluginType(LV2))
 626                 .addConst ("Windows_VST", ARDOUR::PluginType(Windows_VST))
 627                 .addConst ("LXVST", ARDOUR::PluginType(LXVST))
 628                 .addConst ("Lua", ARDOUR::PluginType(Lua))
 629                 .endNamespace ()
 630
 631                 .beginNamespace ("AutoStyle")
 632                 .addConst ("Absolute", ARDOUR::AutoStyle(Absolute))
 633                 .addConst ("Trim", ARDOUR::AutoStyle(Trim))
 634                 .endNamespace ()
 635
 636                 .beginNamespace ("AutoState")
 637                 .addConst ("Off", ARDOUR::AutoState(Off))
 638                 .addConst ("Write", ARDOUR::AutoState(Write))
 639                 .addConst ("Touch", ARDOUR::AutoState(Touch))
 640                 .addConst ("Play", ARDOUR::AutoState(Play))
 641                 .endNamespace ()
 642
 643                 .beginNamespace ("AutomationType")
 644                 .addConst ("PluginAutomation", ARDOUR::AutomationType(PluginAutomation))
 645                 .endNamespace ()
 646
 647                 .beginNamespace ("SrcQuality")
 648                 .addConst ("SrcBest", ARDOUR::SrcQuality(SrcBest))
 649                 .endNamespace ()
 650
 651                 .beginNamespace ("PlaylistDisposition")
 652                 .addConst ("CopyPlaylist", ARDOUR::PlaylistDisposition(CopyPlaylist))
 653                 .addConst ("NewPlaylist", ARDOUR::PlaylistDisposition(NewPlaylist))
 654                 .addConst ("SharePlaylist", ARDOUR::PlaylistDisposition(SharePlaylist))
 655                 .endNamespace ()
 656
 657                 .beginNamespace ("RegionPoint")
 658                 .addConst ("Start", ARDOUR::RegionPoint(Start))
 659                 .addConst ("End", ARDOUR::RegionPoint(End))
 660                 .addConst ("SyncPoint", ARDOUR::RegionPoint(SyncPoint))
 661                 .endNamespace ();
 662
 663         luabridge::getGlobalNamespace (L)
 664                 .beginNamespace ("ARDOUR")
 665                 .beginClass <AudioBackendInfo> ("AudioBackendInfo")
 666                 .addData ("name", &AudioBackendInfo::name)
 667                 .endClass()
 668                 .beginStdVector <const AudioBackendInfo*> ("BackendVector").endClass ()
 669
 670                 .beginClass <AudioBackend::DeviceStatus> ("DeviceStatus")
 671                 .addData ("name", &AudioBackend::DeviceStatus::name)
 672                 .addData ("available", &AudioBackend::DeviceStatus::available)
 673                 .endClass()
 674                 .beginStdVector <AudioBackend::DeviceStatus> ("DeviceStatusVector").endClass ()
 675
 676                 .beginWSPtrClass <AudioBackend> ("AudioBackend")
 677                 .addFunction ("info", &AudioBackend::info)
 678                 .addFunction ("sample_rate", &AudioBackend::sample_rate)
 679                 .addFunction ("buffer_size", &AudioBackend::buffer_size)
 680                 .addFunction ("period_size", &AudioBackend::period_size)
 681                 .addFunction ("input_channels", &AudioBackend::input_channels)
 682                 .addFunction ("output_channels", &AudioBackend::output_channels)
 683                 .addFunction ("dsp_load", &AudioBackend::dsp_load)
 684
 685                 .addFunction ("set_sample_rate", &AudioBackend::set_sample_rate)
 686                 .addFunction ("set_buffer_size", &AudioBackend::set_buffer_size)
 687                 .addFunction ("set_peridod_size", &AudioBackend::set_peridod_size)
 688
 689                 .addFunction ("enumerate_drivers", &AudioBackend::enumerate_drivers)
 690                 .addFunction ("driver_name", &AudioBackend::driver_name)
 691                 .addFunction ("set_driver", &AudioBackend::set_driver)
 692
 693                 .addFunction ("use_separate_input_and_output_devices", &AudioBackend::use_separate_input_and_output_devices)
 694                 .addFunction ("enumerate_devices", &AudioBackend::enumerate_devices)
 695                 .addFunction ("enumerate_input_devices", &AudioBackend::enumerate_input_devices)
 696                 .addFunction ("enumerate_output_devices", &AudioBackend::enumerate_output_devices)
 697                 .addFunction ("device_name", &AudioBackend::device_name)
 698                 .addFunction ("input_device_name", &AudioBackend::input_device_name)
 699                 .addFunction ("output_device_name", &AudioBackend::output_device_name)
 700                 .addFunction ("set_device_name", &AudioBackend::set_device_name)
 701                 .addFunction ("set_input_device_name", &AudioBackend::set_input_device_name)
 702                 .addFunction ("set_output_device_name", &AudioBackend::set_output_device_name)
 703                 .endClass()
 704
 705                 .beginClass <AudioEngine> ("AudioEngine")
 706                 .addFunction ("available_backends", &AudioEngine::available_backends)
 707                 .addFunction ("current_backend_name", &AudioEngine::current_backend_name)
 708                 .addFunction ("set_backend", &AudioEngine::set_backend)
 709                 .addFunction ("setup_required", &AudioEngine::setup_required)
 710                 .addFunction ("start", &AudioEngine::start)
 711                 .addFunction ("stop", &AudioEngine::stop)
 712                 .addFunction ("get_dsp_load", &AudioEngine::get_dsp_load)
 713                 .addFunction ("set_device_name", &AudioEngine::set_device_name)
 714                 .addFunction ("set_sample_rate", &AudioEngine::set_sample_rate)
 715                 .addFunction ("set_buffer_size", &AudioEngine::set_buffer_size)
 716                 .addFunction ("get_last_backend_error", &AudioEngine::get_last_backend_error)
 717                 .endClass()
 718                 .endNamespace ();
 719
 720         // basic representation of Session
 721         // functions which can be used from realtime and non-realtime contexts
 722         luabridge::getGlobalNamespace (L)
 723                 .beginNamespace ("ARDOUR")
 724                 .beginClass <Session> ("Session")
 725                 .addFunction ("scripts_changed", &Session::scripts_changed) // used internally
 726                 .addFunction ("transport_rolling", &Session::transport_rolling)
 727                 .addFunction ("request_transport_speed", &Session::request_transport_speed)
 728                 .addFunction ("transport_frame", &Session::transport_frame)
 729                 .addFunction ("transport_speed", &Session::transport_speed)
 730                 .addFunction ("frame_rate", &Session::frame_rate)
 731                 .addFunction ("nominal_frame_rate", &Session::nominal_frame_rate)
 732                 .addFunction ("frames_per_timecode_frame", &Session::frames_per_timecode_frame)
 733                 .addFunction ("timecode_frames_per_hour", &Session::timecode_frames_per_hour)
 734                 .addFunction ("timecode_frames_per_second", &Session::timecode_frames_per_second)
 735                 .addFunction ("timecode_drop_frames", &Session::timecode_drop_frames)
 736                 .addFunction ("request_locate", &Session::request_locate)
 737                 .addFunction ("request_stop", &Session::request_stop)
 738                 .addFunction ("last_transport_start", &Session::last_transport_start)
 739                 .addFunction ("goto_start", &Session::goto_start)
 740                 .addFunction ("goto_end", &Session::goto_end)
 741                 .addFunction ("current_start_frame", &Session::current_start_frame)
 742                 .addFunction ("current_end_frame", &Session::current_end_frame)
 743                 .addFunction ("actively_recording", &Session::actively_recording)
 744                 .addFunction ("get_routes", &Session::get_routes)
 745                 .addFunction ("get_tracks", &Session::get_tracks)
 746                 .addFunction ("name", &Session::name)
 747                 .addFunction ("path", &Session::path)
 748                 .addFunction ("record_status", &Session::record_status)
 749                 .addFunction ("route_by_id", &Session::route_by_id)
 750                 .addFunction ("route_by_name", &Session::route_by_name)
 751                 .addFunction ("route_by_remote_id", &Session::route_by_remote_id)
 752                 .addFunction ("track_by_diskstream_id", &Session::track_by_diskstream_id)
 753                 .addFunction ("source_by_id", &Session::source_by_id)
 754                 .addFunction ("controllable_by_id", &Session::controllable_by_id)
 755                 .addFunction ("processor_by_id", &Session::processor_by_id)
 756                 .addFunction ("snap_name", &Session::snap_name)
 757                 .addFunction ("tempo_map", (TempoMap& (Session::*)())&Session::tempo_map)
 758                 .addFunction ("locations", &Session::locations)
 759                 .addFunction ("begin_reversible_command", (void (Session::*)(const std::string&))&Session::begin_reversible_command)
 760                 .addFunction ("commit_reversible_command", &Session::commit_reversible_command)
 761                 .addFunction ("abort_reversible_command", &Session::abort_reversible_command)
 762                 .addFunction ("add_stateful_diff_command", &Session::add_stateful_diff_command)
 763                 .endClass ()
 764
 765                 .beginClass <RegionFactory> ("RegionFactory")
 766                 .addStaticFunction ("region_by_id", &RegionFactory::region_by_id)
 767                 .endClass ()
 768
 769                 /* session enums */
 770                 .beginNamespace ("Session")
 771
 772                 .beginNamespace ("RecordState")
 773                 .addConst ("Disabled", ARDOUR::Session::RecordState(Session::Disabled))
 774                 .addConst ("Enabled", ARDOUR::Session::RecordState(Session::Enabled))
 775                 .addConst ("Recording", ARDOUR::Session::RecordState(Session::Recording))
 776                 .endNamespace ()
 777
 778                 .endNamespace () // END Session enums
 779
 780                 .beginNamespace ("LuaAPI")
 781                 .addFunction ("nil_proc", ARDOUR::LuaAPI::nil_processor)
 782                 .addFunction ("new_luaproc", ARDOUR::LuaAPI::new_luaproc)
 783                 .addFunction ("new_plugin_info", ARDOUR::LuaAPI::new_plugin_info)
 784                 .addFunction ("new_plugin", ARDOUR::LuaAPI::new_plugin)
 785                 .addFunction ("set_processor_param", ARDOUR::LuaAPI::set_processor_param)
 786                 .addFunction ("set_plugin_insert_param", ARDOUR::LuaAPI::set_plugin_insert_param)
 787                 .addFunction ("usleep", Glib::usleep)
 788                 .endNamespace ()
 789
 790                 .endNamespace ();// END ARDOUR
 791 }
 792
 793 void
 794 LuaBindings::dsp (lua_State* L)
 795 {
 796         luabridge::getGlobalNamespace (L)
 797                 .beginNamespace ("ARDOUR")
 798
 799                 .beginClass <AudioBuffer> ("AudioBuffer")
 800                 .addFunction ("data", (Sample*(AudioBuffer::*)(framecnt_t))&AudioBuffer::data)
 801                 .addFunction ("silence", &AudioBuffer::silence)
 802                 .addFunction ("apply_gain", &AudioBuffer::apply_gain)
 803                 .addFunction ("check_silence", &AudioBuffer::check_silence)
 804                 .addFunction ("read_from", (void (AudioBuffer::*)(const Sample*, framecnt_t, framecnt_t, framecnt_t))&AudioBuffer::check_silence)
 805                 .endClass()
 806
 807                 .beginClass <MidiBuffer> ("MidiBuffer")
 808                 .addFunction ("silence", &MidiBuffer::silence)
 809                 .addFunction ("empty", &MidiBuffer::empty)
 810                 // TODO iterators..
 811                 .endClass()
 812
 813                 .beginClass <BufferSet> ("BufferSet")
 814                 .addFunction ("get_audio", static_cast<AudioBuffer&(BufferSet::*)(size_t)>(&BufferSet::get_audio))
 815                 .addFunction ("count", static_cast<const ChanCount&(BufferSet::*)()const>(&BufferSet::count))
 816                 .endClass()
 817                 .endNamespace ();
 818
 819         luabridge::getGlobalNamespace (L)
 820                 .beginNamespace ("Evoral")
 821                 .beginClass <Evoral::Event<framepos_t> > ("Event")
 822                 .addFunction ("clear", &Evoral::Event<framepos_t>::clear)
 823                 .addFunction ("size", &Evoral::Event<framepos_t>::size)
 824                 .addFunction ("set_buffer", &Evoral::Event<framepos_t>::set_buffer)
 825                 .addFunction ("buffer", (uint8_t*(Evoral::Event<framepos_t>::*)())&Evoral::Event<framepos_t>::buffer)
 826                 .endClass ()
 827
 828                 .beginClass <Evoral::Beats> ("Beats")
 829                 .addFunction ("to_double", &Evoral::Beats::to_double)
 830                 .endClass ()
 831
 832                 .deriveClass <Evoral::MIDIEvent<framepos_t>, Evoral::Event<framepos_t> > ("MidiEvent")
 833                 // add Ctor?
 834                 .addFunction ("type", &Evoral::MIDIEvent<framepos_t>::type)
 835                 .addFunction ("channel", &Evoral::MIDIEvent<framepos_t>::channel)
 836                 .addFunction ("set_type", &Evoral::MIDIEvent<framepos_t>::type)
 837                 .addFunction ("set_channel", &Evoral::MIDIEvent<framepos_t>::channel)
 838                 .endClass ()
 839                 .endNamespace ();
 840
 841         // dsp releated session functions
 842         luabridge::getGlobalNamespace (L)
 843                 .beginNamespace ("ARDOUR")
 844                 .beginClass <Session> ("Session")
 845                 .addFunction ("get_scratch_buffers", &Session::get_scratch_buffers)
 846                 .addFunction ("get_silent_buffers", &Session::get_silent_buffers)
 847                 .endClass ()
 848                 .endNamespace ();
 849
 850         luabridge::getGlobalNamespace (L)
 851                 .beginNamespace ("ARDOUR")
 852                 .beginNamespace ("DSP")
 853                 .addFunction ("compute_peak", ARDOUR::compute_peak)
 854                 .addFunction ("find_peaks", ARDOUR::find_peaks)
 855                 .addFunction ("apply_gain_to_buffer", ARDOUR::apply_gain_to_buffer)
 856                 .addFunction ("mix_buffers_no_gain", ARDOUR::mix_buffers_no_gain)
 857                 .addFunction ("mix_buffers_with_gain", ARDOUR::mix_buffers_with_gain)
 858                 .addFunction ("copy_vector", ARDOUR::copy_vector)
 859                 .addFunction ("dB_to_coefficient", &dB_to_coefficient)
 860                 .addFunction ("fast_coefficient_to_dB", &fast_coefficient_to_dB)
 861                 .addFunction ("accurate_coefficient_to_dB", &accurate_coefficient_to_dB)
 862                 .addFunction ("memset", &DSP::memset)
 863                 .addFunction ("mmult", &DSP::mmult)
 864                 .addFunction ("log_meter", &DSP::log_meter)
 865                 .addFunction ("log_meter_coeff", &DSP::log_meter_coeff)
 866                 .addRefFunction ("peaks", &DSP::peaks)
 867
 868                 .beginClass <DSP::LowPass> ("LowPass")
 869                 .addConstructor <void (*) (double, float)> ()
 870                 .addFunction ("proc", &DSP::LowPass::proc)
 871                 .addFunction ("ctrl", &DSP::LowPass::ctrl)
 872                 .addFunction ("set_cutoff", &DSP::LowPass::set_cutoff)
 873                 .addFunction ("reset", &DSP::LowPass::reset)
 874                 .endClass ()
 875                 .beginClass <DSP::BiQuad> ("Biquad")
 876                 .addConstructor <void (*) (double)> ()
 877                 .addFunction ("run", &DSP::BiQuad::run)
 878                 .addFunction ("compute", &DSP::BiQuad::compute)
 879                 .addFunction ("reset", &DSP::BiQuad::reset)
 880                 .endClass ()
 881
 882                 /* DSP enums */
 883                 .beginNamespace ("BiQuadType")
 884                 .addConst ("LowPass", ARDOUR::DSP::BiQuad::LowPass)
 885                 .addConst ("HighPass", ARDOUR::DSP::BiQuad::HighPass)
 886                 .addConst ("BandPassSkirt", ARDOUR::DSP::BiQuad::BandPassSkirt)
 887                 .addConst ("BandPass0dB", ARDOUR::DSP::BiQuad::BandPass0dB)
 888                 .addConst ("Notch", ARDOUR::DSP::BiQuad::Notch)
 889                 .addConst ("AllPass", ARDOUR::DSP::BiQuad::AllPass)
 890                 .addConst ("Peaking", ARDOUR::DSP::BiQuad::Peaking)
 891                 .addConst ("LowShelf", ARDOUR::DSP::BiQuad::LowShelf)
 892                 .addConst ("HighShelf", ARDOUR::DSP::BiQuad::HighShelf)
 893                 .endNamespace ()
 894
 895                 .beginClass <DSP::DspShm> ("DspShm")
 896                 .addFunction ("allocate", &DSP::DspShm::allocate)
 897                 .addFunction ("clear", &DSP::DspShm::clear)
 898                 .addFunction ("to_float", &DSP::DspShm::to_float)
 899                 .addFunction ("to_int", &DSP::DspShm::to_int)
 900                 .addFunction ("atomic_set_int", &DSP::DspShm::atomic_set_int)
 901                 .addFunction ("atomic_get_int", &DSP::DspShm::atomic_get_int)
 902                 .endClass ()
 903
 904                 .endNamespace () // DSP
 905                 .endNamespace (); // ARDOUR
 906 }
 907
 908 void
 909 LuaBindings::session (lua_State* L)
 910 {
 911         // non-realtime session functions
 912         luabridge::getGlobalNamespace (L)
 913                 .beginNamespace ("ARDOUR")
 914                 .beginClass <Session> ("Session")
 915                 .addFunction ("save_state", &Session::save_state)
 916                 .addFunction ("set_dirty", &Session::set_dirty)
 917                 .addFunction ("unknown_processors", &Session::unknown_processors)
 918
 919                 .addFunction<RouteList (Session::*)(uint32_t, const std::string&, const std::string&, PlaylistDisposition)> ("new_route_from_template", &Session::new_route_from_template)
 920                 // TODO  session_add_audio_track  session_add_midi_track  session_add_mixed_track
 921                 //.addFunction ("new_midi_track", &Session::new_midi_track)
 922                 .endClass ()
 923
 924                 .endNamespace (); // ARDOUR
 925 }
 926
 927 void
 928 LuaBindings::osc (lua_State* L)
 929 {
 930         luabridge::getGlobalNamespace (L)
 931                 .beginNamespace ("ARDOUR")
 932                 .beginNamespace ("LuaOSC")
 933                 .beginClass<LuaOSC::Address> ("Address")
 934                 .addConstructor<void (*) (std::string)> ()
 935                 .addCFunction ("send", &LuaOSC::Address::send)
 936                 .endClass ()
 937                 .endNamespace ()
 938                 .endNamespace ();
 939 }
 940
 941 void
 942 LuaBindings::set_session (lua_State* L, Session *s)
 943 {
 944         /* LuaBridge uses unique keys to identify classes/c-types.
 945          *
 946          * Those keys are "generated" by using the memory-address of a static
 947          * variable, templated for every Class.
 948          * (see libs/lua/LuaBridge/detail/ClassInfo.h)
 949          *
 950          * When linking the final executable there must be exactly one static
 951          * function (static variable) for every templated class.
 952          * This works fine on OSX and Linux...
 953          *
 954          * Windows (mingw and MSVC) however expand the template differently for libardour
 955          * AND gtk2_ardour. We end up with two identical static functions
 956          * at different addresses!!
 957          *
 958          * The Solution: have gtk2_ardour never include LuaBridge headers directly
 959          * and always go via libardour function calls for classes that are registered
 960          * in libardour. (calling lua itself is fine,  calling c-functions in the GUI
 961          * which expand the template is not)
 962          *
 963          * (the actual cause: even static symbols in a .dll have no fixed address
 964          * and are mapped when loading the dll. static functions in .exe do have a fixed
 965          * address)
 966          *
 967          * libardour:
 968          *  0000000000000000 I __imp__ZZN9luabridge9ClassInfoIN6ARDOUR7SessionEE11getClassKeyEvE5value
 969          *  0000000000000000 I __nm__ZZN9luabridge9ClassInfoIN6ARDOUR7SessionEE11getClassKeyEvE5value
 970          *  0000000000000000 T _ZN9luabridge9ClassInfoIN6ARDOUR7SessionEE11getClassKeyEv
 971          *
 972          * ardour.exe
 973          *  000000000104f560 d .data$_ZZN9luabridge9ClassInfoIN6ARDOUR7SessionEE11getClassKeyEvE5value
 974          *  000000000104f560 D _ZZN9luabridge9ClassInfoIN6ARDOUR7SessionEE11getClassKeyEvE5value
 975          *  0000000000e9baf0 T _ZN9luabridge9ClassInfoIN6ARDOUR7SessionEE11getClassKeyEv
 976          *
 977          *
 978          */
 979         luabridge::push <Session *> (L, s);
 980         lua_setglobal (L, "Session");
 981
 982         if (s) {
 983                 // call lua function.
 984                 luabridge::LuaRef cb_ses = luabridge::getGlobal (L, "new_session");
 985                 if (cb_ses.type() == LUA_TFUNCTION) { cb_ses(s->name()); } // TODO args
 986         }
 987 }