2 Copyright (C) 2008-2012 Paul Davis
3 Author: David Robillard
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <giomm/file.h>
30 #include <boost/utility.hpp>
32 #include "pbd/compose.h"
33 #include "pbd/error.h"
34 #include "pbd/pathscanner.h"
35 #include "pbd/stl_delete.h"
36 #include "pbd/xml++.h"
38 #include "libardour-config.h"
40 #include "ardour/ardour.h"
41 #include "ardour/audio_buffer.h"
42 #include "ardour/audioengine.h"
43 #include "ardour/debug.h"
44 #include "ardour/lv2_plugin.h"
45 #include "ardour/session.h"
46 #include "ardour/tempo.h"
47 #include "ardour/worker.h"
52 #include <lilv/lilv.h>
54 #include "lv2/lv2plug.in/ns/ext/atom/atom.h"
55 #include "lv2/lv2plug.in/ns/ext/state/state.h"
56 #include "lv2/lv2plug.in/ns/ext/worker/worker.h"
58 #include "lv2_evbuf.h"
61 #include <suil/suil.h>
64 #define NS_PSET "http://lv2plug.in/ns/ext/presets#"
65 #define NS_UI "http://lv2plug.in/ns/extensions/ui#"
68 using namespace ARDOUR;
71 URIMap LV2Plugin::_uri_map;
72 uint32_t LV2Plugin::_midi_event_type_ev = _uri_map.uri_to_id(
73 "http://lv2plug.in/ns/ext/event",
74 "http://lv2plug.in/ns/ext/midi#MidiEvent");
75 uint32_t LV2Plugin::_midi_event_type = _uri_map.uri_to_id(
77 "http://lv2plug.in/ns/ext/midi#MidiEvent");
78 uint32_t LV2Plugin::_chunk_type = _uri_map.uri_to_id(
79 NULL, LV2_ATOM__Chunk);
80 uint32_t LV2Plugin::_sequence_type = _uri_map.uri_to_id(
81 NULL, LV2_ATOM__Sequence);
82 uint32_t LV2Plugin::_event_transfer_type = _uri_map.uri_to_id(
83 NULL, LV2_ATOM__eventTransfer);
84 uint32_t LV2Plugin::_path_type = _uri_map.uri_to_id(
85 NULL, LV2_ATOM__Path);
87 class LV2World : boost::noncopyable {
94 LilvNode* atom_AtomPort;
96 LilvNode* atom_Sequence;
97 LilvNode* atom_bufferType;
98 LilvNode* atom_eventTransfer;
99 LilvNode* ev_EventPort;
100 LilvNode* ext_logarithmic;
101 LilvNode* lv2_AudioPort;
102 LilvNode* lv2_ControlPort;
103 LilvNode* lv2_InputPort;
104 LilvNode* lv2_OutputPort;
105 LilvNode* lv2_enumeration;
106 LilvNode* lv2_inPlaceBroken;
107 LilvNode* lv2_integer;
108 LilvNode* lv2_sampleRate;
109 LilvNode* lv2_toggled;
110 LilvNode* midi_MidiEvent;
112 LilvNode* ui_external;
115 static LV2World _world;
117 /** Called by the plugin to schedule non-RT work. */
118 static LV2_Worker_Status
119 work_schedule(LV2_Worker_Schedule_Handle handle,
123 LV2Plugin* plugin = (LV2Plugin*)handle;
124 if (plugin->session().engine().freewheeling()) {
125 // Freewheeling, do the work immediately in this (audio) thread
126 return (LV2_Worker_Status)plugin->work(size, data);
128 // Enqueue message for the worker thread
129 return plugin->worker()->schedule(size, data) ?
130 LV2_WORKER_SUCCESS : LV2_WORKER_ERR_UNKNOWN;
134 /** Called by the plugin to respond to non-RT work. */
135 static LV2_Worker_Status
136 work_respond(LV2_Worker_Respond_Handle handle,
140 LV2Plugin* plugin = (LV2Plugin*)handle;
141 if (plugin->session().engine().freewheeling()) {
142 // Freewheeling, respond immediately in this (audio) thread
143 return (LV2_Worker_Status)plugin->work_response(size, data);
145 // Enqueue response for the worker
146 return plugin->worker()->respond(size, data) ?
147 LV2_WORKER_SUCCESS : LV2_WORKER_ERR_UNKNOWN;
151 struct LV2Plugin::Impl {
152 Impl() : plugin(0), ui(0), ui_type(0), name(0), author(0), instance(0)
159 /** Find the LV2 input port with the given designation.
160 * If found, bufptrs[port_index] will be set to bufptr.
162 LilvPort* designated_input (const char* uri, void** bufptrs[], void** bufptr);
166 const LilvNode* ui_type;
169 LilvInstance* instance;
170 LV2_Worker_Interface* work_iface;
176 LV2Plugin::LV2Plugin (AudioEngine& engine,
180 : Plugin(engine, session)
186 init(c_plugin, rate);
189 LV2Plugin::LV2Plugin (const LV2Plugin& other)
194 , _insert_id(other._insert_id)
196 init(other._impl->plugin, other._sample_rate);
198 for (uint32_t i = 0; i < parameter_count(); ++i) {
199 _control_data[i] = other._shadow_data[i];
200 _shadow_data[i] = other._shadow_data[i];
205 LV2Plugin::init(void* c_plugin, framecnt_t rate)
207 DEBUG_TRACE(DEBUG::LV2, "init\n");
209 _impl->plugin = (LilvPlugin*)c_plugin;
211 _impl->ui_type = NULL;
217 _bpm_control_port = 0;
218 _freewheel_control_port = 0;
219 _latency_control_port = 0;
221 _was_activated = false;
222 _has_state_interface = false;
224 _instance_access_feature.URI = "http://lv2plug.in/ns/ext/instance-access";
225 _data_access_feature.URI = "http://lv2plug.in/ns/ext/data-access";
226 _make_path_feature.URI = LV2_STATE__makePath;
227 _work_schedule_feature.URI = LV2_WORKER__schedule;
229 LilvPlugin* plugin = _impl->plugin;
232 LilvNode* state_iface_uri = lilv_new_uri(_world.world, LV2_STATE__interface);
233 LilvNode* state_uri = lilv_new_uri(_world.world, LV2_STATE_URI);
234 _has_state_interface =
235 // What plugins should have (lv2:extensionData state:Interface)
236 lilv_plugin_has_extension_data(plugin, state_iface_uri)
237 // What some outdated/incorrect ones have
238 || lilv_plugin_has_feature(plugin, state_uri);
239 lilv_node_free(state_uri);
240 lilv_node_free(state_iface_uri);
243 _features = (LV2_Feature**)malloc(sizeof(LV2_Feature*) * 8);
244 _features[0] = &_instance_access_feature;
245 _features[1] = &_data_access_feature;
246 _features[2] = &_make_path_feature;
247 _features[3] = _uri_map.uri_map_feature();
248 _features[4] = _uri_map.urid_map_feature();
249 _features[5] = _uri_map.urid_unmap_feature();
253 LV2_State_Make_Path* make_path = (LV2_State_Make_Path*)malloc(
254 sizeof(LV2_State_Make_Path));
255 make_path->handle = this;
256 make_path->path = &lv2_state_make_path;
257 _make_path_feature.data = make_path;
259 LilvNode* worker_schedule = lilv_new_uri(_world.world, LV2_WORKER__schedule);
260 if (lilv_plugin_has_feature(plugin, worker_schedule)) {
261 LV2_Worker_Schedule* schedule = (LV2_Worker_Schedule*)malloc(
262 sizeof(LV2_Worker_Schedule));
263 _worker = new Worker(this, 4096);
264 schedule->handle = this;
265 schedule->schedule_work = work_schedule;
266 _work_schedule_feature.data = schedule;
267 _features[6] = &_work_schedule_feature;
269 lilv_node_free(worker_schedule);
271 _impl->instance = lilv_plugin_instantiate(plugin, rate, _features);
272 _impl->name = lilv_plugin_get_name(plugin);
273 _impl->author = lilv_plugin_get_author_name(plugin);
275 if (_impl->instance == 0) {
276 error << _("LV2: Failed to instantiate plugin ") << uri() << endmsg;
277 throw failed_constructor();
280 _instance_access_feature.data = (void*)_impl->instance->lv2_handle;
281 _data_access_extension_data.extension_data = _impl->instance->lv2_descriptor->extension_data;
282 _data_access_feature.data = &_data_access_extension_data;
284 _impl->work_iface = (LV2_Worker_Interface*)extension_data(LV2_WORKER__interface);
286 if (lilv_plugin_has_feature(plugin, _world.lv2_inPlaceBroken)) {
287 error << string_compose(
288 _("LV2: \"%1\" cannot be used, since it cannot do inplace processing"),
289 lilv_node_as_string(_impl->name)) << endmsg;
290 lilv_node_free(_impl->name);
291 lilv_node_free(_impl->author);
292 throw failed_constructor();
297 const uint32_t num_ports = this->num_ports();
298 for (uint32_t i = 0; i < num_ports; ++i) {
299 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, i);
302 if (lilv_port_is_a(_impl->plugin, port, _world.lv2_OutputPort)) {
303 flags |= PORT_OUTPUT;
304 } else if (lilv_port_is_a(_impl->plugin, port, _world.lv2_InputPort)) {
307 error << string_compose(
308 "LV2: \"%1\" port %2 is neither input nor output",
309 lilv_node_as_string(_impl->name), i) << endmsg;
310 throw failed_constructor();
313 if (lilv_port_is_a(_impl->plugin, port, _world.lv2_ControlPort)) {
314 flags |= PORT_CONTROL;
315 } else if (lilv_port_is_a(_impl->plugin, port, _world.lv2_AudioPort)) {
317 } else if (lilv_port_is_a(_impl->plugin, port, _world.ev_EventPort)) {
319 } else if (lilv_port_is_a(_impl->plugin, port, _world.atom_AtomPort)) {
320 LilvNodes* buffer_types = lilv_port_get_value(
321 _impl->plugin, port, _world.atom_bufferType);
322 if (lilv_nodes_contains(buffer_types, _world.atom_Sequence)) {
323 flags |= PORT_MESSAGE;
325 lilv_nodes_free(buffer_types);
327 error << string_compose(
328 "LV2: \"%1\" port %2 has no known data type",
329 lilv_node_as_string(_impl->name), i) << endmsg;
330 throw failed_constructor();
333 _port_flags.push_back(flags);
336 _control_data = new float[num_ports];
337 _shadow_data = new float[num_ports];
338 _defaults = new float[num_ports];
339 _ev_buffers = new LV2_Evbuf*[num_ports];
340 memset(_ev_buffers, 0, sizeof(LV2_Evbuf*) * num_ports);
342 const bool latent = lilv_plugin_has_latency(plugin);
343 const uint32_t latency_index = (latent)
344 ? lilv_plugin_get_latency_port_index(plugin)
347 #define NS_TIME "http://lv2plug.in/ns/ext/time#"
349 // Build an array of pointers to special parameter buffers
350 void*** params = new void**[num_ports];
351 for (uint32_t i = 0; i < num_ports; ++i) {
354 _impl->designated_input (NS_TIME "beatsPerMinute", params, (void**)&_bpm_control_port);
355 _impl->designated_input (LILV_NS_LV2 "freeWheeling", params, (void**)&_freewheel_control_port);
357 for (uint32_t i = 0; i < num_ports; ++i) {
358 const LilvPort* port = lilv_plugin_get_port_by_index(plugin, i);
359 const LilvNode* sym = lilv_port_get_symbol(plugin, port);
361 // Store index in map so we can look up index by symbol
362 _port_indices.insert(std::make_pair(lilv_node_as_string(sym), i));
364 // Get range and default value if applicable
365 if (parameter_is_control(i)) {
367 lilv_port_get_range(plugin, port, &def, NULL, NULL);
368 _defaults[i] = def ? lilv_node_as_float(def) : 0.0f;
369 if (lilv_port_has_property (plugin, port, _world.lv2_sampleRate)) {
370 _defaults[i] *= _session.frame_rate ();
374 lilv_instance_connect_port(_impl->instance, i, &_control_data[i]);
376 if (latent && i == latency_index) {
377 _latency_control_port = &_control_data[i];
378 *_latency_control_port = 0;
381 if (parameter_is_input(i)) {
382 _shadow_data[i] = default_value(i);
384 *params[i] = (void*)&_shadow_data[i];
394 LilvUIs* uis = lilv_plugin_get_uis(plugin);
395 if (lilv_uis_size(uis) > 0) {
397 // Look for embeddable UI
398 LILV_FOREACH(uis, u, uis) {
399 const LilvUI* this_ui = lilv_uis_get(uis, u);
400 const LilvNode* this_ui_type = NULL;
401 if (lilv_ui_is_supported(this_ui,
405 // TODO: Multiple UI support
407 _impl->ui_type = this_ui_type;
412 // Look for Gtk native UI
413 LILV_FOREACH(uis, i, uis) {
414 const LilvUI* ui = lilv_uis_get(uis, i);
415 if (lilv_ui_is_a(ui, _world.ui_GtkUI)) {
417 _impl->ui_type = _world.ui_GtkUI;
423 // If Gtk UI is not available, try to find external UI
425 LILV_FOREACH(uis, i, uis) {
426 const LilvUI* ui = lilv_uis_get(uis, i);
427 if (lilv_ui_is_a(ui, _world.ui_external)) {
429 _impl->ui_type = _world.ui_external;
436 latency_compute_run();
439 LV2Plugin::~LV2Plugin ()
441 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 destroy\n", name()));
446 lilv_instance_free(_impl->instance);
447 lilv_node_free(_impl->name);
448 lilv_node_free(_impl->author);
451 free(_make_path_feature.data);
452 free(_work_schedule_feature.data);
457 delete [] _control_data;
458 delete [] _shadow_data;
459 delete [] _ev_buffers;
463 LV2Plugin::is_external_ui() const
468 return lilv_ui_is_a(_impl->ui, _world.ui_external);
472 LV2Plugin::ui_is_resizable () const
474 const LilvNode* s = lilv_ui_get_uri(_impl->ui);
475 LilvNode* p = lilv_new_uri(_world.world, NS_UI "optionalFeature");
476 LilvNode* fs = lilv_new_uri(_world.world, NS_UI "fixedSize");
477 LilvNode* nrs = lilv_new_uri(_world.world, NS_UI "noUserResize");
479 LilvNodes* fs_matches = lilv_world_find_nodes(_world.world, s, p, fs);
480 LilvNodes* nrs_matches = lilv_world_find_nodes(_world.world, s, p, nrs);
482 lilv_nodes_free(nrs_matches);
483 lilv_nodes_free(fs_matches);
488 return !fs_matches && !nrs_matches;
492 LV2Plugin::unique_id() const
494 return lilv_node_as_uri(lilv_plugin_get_uri(_impl->plugin));
498 LV2Plugin::uri() const
500 return lilv_node_as_uri(lilv_plugin_get_uri(_impl->plugin));
504 LV2Plugin::label() const
506 return lilv_node_as_string(_impl->name);
510 LV2Plugin::name() const
512 return lilv_node_as_string(_impl->name);
516 LV2Plugin::maker() const
518 return _impl->author ? lilv_node_as_string (_impl->author) : "Unknown";
522 LV2Plugin::num_ports() const
524 return lilv_plugin_get_num_ports(_impl->plugin);
528 LV2Plugin::parameter_count() const
530 return lilv_plugin_get_num_ports(_impl->plugin);
534 LV2Plugin::default_value(uint32_t port)
536 return _defaults[port];
540 LV2Plugin::port_symbol(uint32_t index) const
542 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, index);
544 error << name() << ": Invalid port index " << index << endmsg;
547 const LilvNode* sym = lilv_port_get_symbol(_impl->plugin, port);
548 return lilv_node_as_string(sym);
552 LV2Plugin::port_index (const char* symbol) const
554 const map<string, uint32_t>::const_iterator i = _port_indices.find(symbol);
555 if (i != _port_indices.end()) {
558 warning << string_compose(_("LV2: Unknown port %1"), symbol) << endmsg;
564 LV2Plugin::set_parameter(uint32_t which, float val)
566 DEBUG_TRACE(DEBUG::LV2, string_compose(
567 "%1 set parameter %2 to %3\n", name(), which, val));
569 if (which < lilv_plugin_get_num_ports(_impl->plugin)) {
570 _shadow_data[which] = val;
572 warning << string_compose(
573 _("Illegal parameter number used with plugin \"%1\". "
574 "This is a bug in either %2 or the LV2 plugin <%3>"),
575 name(), PROGRAM_NAME, unique_id()) << endmsg;
578 Plugin::set_parameter(which, val);
582 LV2Plugin::get_parameter(uint32_t which) const
584 if (parameter_is_input(which)) {
585 return (float)_shadow_data[which];
587 return (float)_control_data[which];
593 LV2Plugin::nth_parameter(uint32_t n, bool& ok) const
596 for (uint32_t c = 0, x = 0; x < lilv_plugin_get_num_ports(_impl->plugin); ++x) {
597 if (parameter_is_control(x)) {
609 LV2Plugin::extension_data (const char* uri) const
611 return lilv_instance_get_extension_data(_impl->instance, uri);
615 LV2Plugin::c_plugin ()
617 return _impl->plugin;
623 return (void*)_impl->ui;
627 LV2Plugin::c_ui_type ()
629 return (void*)_impl->ui_type;
632 /** Directory for all plugin state. */
634 LV2Plugin::plugin_dir() const
636 return Glib::build_filename(_session.plugins_dir(), _insert_id.to_s());
639 /** Directory for files created by the plugin (except during save). */
641 LV2Plugin::scratch_dir() const
643 return Glib::build_filename(plugin_dir(), "scratch");
646 /** Directory for snapshots of files in the scratch directory. */
648 LV2Plugin::file_dir() const
650 return Glib::build_filename(plugin_dir(), "files");
653 /** Directory to save state snapshot version @c num into. */
655 LV2Plugin::state_dir(unsigned num) const
657 return Glib::build_filename(plugin_dir(), string_compose("state%1", num));
660 /** Implementation of state:makePath for files created at instantiation time.
661 * Note this is not used for files created at save time (Lilv deals with that).
664 LV2Plugin::lv2_state_make_path(LV2_State_Make_Path_Handle handle,
667 LV2Plugin* me = (LV2Plugin*)handle;
668 if (me->_insert_id == PBD::ID("0")) {
669 warning << string_compose(
670 "File path \"%1\" requested but LV2 %2 has no insert ID",
671 path, me->name()) << endmsg;
672 return g_strdup(path);
675 const std::string abs_path = Glib::build_filename(me->scratch_dir(), path);
676 const std::string dirname = Glib::path_get_dirname(abs_path);
677 g_mkdir_with_parents(dirname.c_str(), 0744);
679 DEBUG_TRACE(DEBUG::LV2, string_compose("new file path %1 => %2\n",
682 std::cerr << "MAKE PATH " << path
683 << " => " << g_strndup(abs_path.c_str(), abs_path.length())
685 return g_strndup(abs_path.c_str(), abs_path.length());
689 remove_directory(const std::string& path)
691 if (!Glib::file_test(path, Glib::FILE_TEST_IS_DIR)) {
692 warning << string_compose("\"%1\" is not a directory", path) << endmsg;
696 Glib::RefPtr<Gio::File> dir = Gio::File::create_for_path(path);
697 Glib::RefPtr<Gio::FileEnumerator> e = dir->enumerate_children();
698 Glib::RefPtr<Gio::FileInfo> fi;
699 while ((fi = e->next_file())) {
700 if (fi->get_type() == Gio::FILE_TYPE_DIRECTORY) {
701 remove_directory(fi->get_name());
703 dir->get_child(fi->get_name())->remove();
710 LV2Plugin::add_state(XMLNode* root) const
712 assert(_insert_id != PBD::ID("0"));
716 LocaleGuard lg(X_("POSIX"));
718 for (uint32_t i = 0; i < parameter_count(); ++i) {
719 if (parameter_is_input(i) && parameter_is_control(i)) {
720 child = new XMLNode("Port");
721 child->add_property("symbol", port_symbol(i));
722 snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]);
723 child->add_property("value", string(buf));
724 root->add_child_nocopy(*child);
728 if (_has_state_interface) {
729 cout << "LV2 " << name() << " has state interface" << endl;
731 // Provisionally increment state version and create directory
732 const std::string new_dir = state_dir(++_state_version);
733 g_mkdir_with_parents(new_dir.c_str(), 0744);
735 cout << "NEW DIR: " << new_dir << endl;
737 LilvState* state = lilv_state_new_from_instance(
741 scratch_dir().c_str(),
743 _session.externals_dir().c_str(),
750 if (!_impl->state || !lilv_state_equals(state, _impl->state)) {
751 lilv_state_save(_world.world,
753 _uri_map.urid_unmap(),
759 lilv_state_free(_impl->state);
760 _impl->state = state;
762 cout << "Saved LV2 state to " << state_dir(_state_version) << endl;
764 // State is identical, decrement version and nuke directory
765 cout << "LV2 state identical, not saving" << endl;
766 lilv_state_free(state);
767 remove_directory(new_dir);
771 root->add_property("state-dir", string_compose("state%1", _state_version));
773 #else /* !HAVE_NEW_LILV */
774 warning << string_compose(
775 _("Plugin \"%1\" has state, but Lilv is too old to save it"),
776 unique_id()) << endmsg;
777 #endif /* HAVE_NEW_LILV */
779 cout << "LV2 " << name() << " has no state interface." << endl;
783 static inline const LilvNode*
784 get_value(LilvWorld* world, const LilvNode* subject, const LilvNode* predicate)
786 LilvNodes* vs = lilv_world_find_nodes(world, subject, predicate, NULL);
787 return vs ? lilv_nodes_get_first(vs) : NULL;
791 LV2Plugin::find_presets()
794 LilvNode* lv2_appliesTo = lilv_new_uri(_world.world, LILV_NS_LV2 "appliesTo");
795 LilvNode* pset_Preset = lilv_new_uri(_world.world, NS_PSET "Preset");
796 LilvNode* rdfs_label = lilv_new_uri(_world.world, LILV_NS_RDFS "label");
798 LilvNodes* presets = lilv_plugin_get_related(_impl->plugin, pset_Preset);
799 LILV_FOREACH(nodes, i, presets) {
800 const LilvNode* preset = lilv_nodes_get(presets, i);
801 lilv_world_load_resource(_world.world, preset);
802 const LilvNode* name = get_value(_world.world, preset, rdfs_label);
804 _presets.insert(std::make_pair(lilv_node_as_string(preset),
805 Plugin::PresetRecord(
806 lilv_node_as_string(preset),
807 lilv_node_as_string(name))));
809 warning << string_compose(
810 _("Plugin \"%1\% preset \"%2%\" is missing a label\n"),
811 lilv_node_as_string(lilv_plugin_get_uri(_impl->plugin)),
812 lilv_node_as_string(preset)) << endmsg;
815 lilv_nodes_free(presets);
817 lilv_node_free(rdfs_label);
818 lilv_node_free(pset_Preset);
819 lilv_node_free(lv2_appliesTo);
820 #endif /* HAVE_NEW_LILV */
824 LV2Plugin::load_preset(PresetRecord r)
826 Plugin::load_preset(r);
828 std::map<std::string,uint32_t>::iterator it;
830 LilvNode* lv2_port = lilv_new_uri(_world.world, LILV_NS_LV2 "port");
831 LilvNode* lv2_symbol = lilv_new_uri(_world.world, LILV_NS_LV2 "symbol");
832 LilvNode* preset = lilv_new_uri(_world.world, r.uri.c_str());
833 LilvNode* pset_value = lilv_new_uri(_world.world, NS_PSET "value");
835 LilvNodes* ports = lilv_world_find_nodes(_world.world, preset, lv2_port, NULL);
836 LILV_FOREACH(nodes, i, ports) {
837 const LilvNode* port = lilv_nodes_get(ports, i);
838 const LilvNode* symbol = get_value(_world.world, port, lv2_symbol);
839 const LilvNode* value = get_value(_world.world, port, pset_value);
840 if (value && lilv_node_is_float(value)) {
841 it = _port_indices.find(lilv_node_as_string(symbol));
842 if (it != _port_indices.end())
843 set_parameter(it->second,lilv_node_as_float(value));
846 lilv_nodes_free(ports);
848 lilv_node_free(pset_value);
849 lilv_node_free(preset);
850 lilv_node_free(lv2_symbol);
851 lilv_node_free(lv2_port);
857 LV2Plugin::do_save_preset(string /*name*/)
863 LV2Plugin::do_remove_preset(string /*name*/)
867 LV2Plugin::has_editor() const
869 return _impl->ui != NULL;
873 LV2Plugin::has_message_output() const
875 for (uint32_t i = 0; i < num_ports(); ++i) {
876 if ((_port_flags[i] & PORT_MESSAGE) && _port_flags[i] & PORT_OUTPUT) {
884 LV2Plugin::atom_eventTransfer() const
886 return _event_transfer_type;
890 LV2Plugin::write_to(RingBuffer<uint8_t>* dest,
896 const uint32_t buf_size = sizeof(UIMessage) + size;
897 uint8_t buf[buf_size];
899 UIMessage* msg = (UIMessage*)buf;
901 msg->protocol = protocol;
903 memcpy(msg + 1, body, size);
905 if (dest->write(buf, buf_size) != buf_size) {
906 error << "Error writing to UI=>Plugin RingBuffer" << endmsg;
911 LV2Plugin::write_from_ui(uint32_t index,
917 _from_ui = new RingBuffer<uint8_t>(4096);
920 write_to(_from_ui, index, protocol, size, body);
924 LV2Plugin::write_to_ui(uint32_t index,
929 std::cerr << "WRITE TO UI" << std::endl;
930 write_to(_to_ui, index, protocol, size, body);
934 LV2Plugin::enable_ui_emmission()
937 _to_ui = new RingBuffer<uint8_t>(4096);
942 LV2Plugin::emit_to_ui(void* controller, UIMessageSink sink)
948 uint32_t read_space = _to_ui->read_space();
949 while (read_space > sizeof(UIMessage)) {
951 if (_to_ui->read((uint8_t*)&msg, sizeof(msg)) != sizeof(msg)) {
952 error << "Error reading from Plugin=>UI RingBuffer" << endmsg;
955 uint8_t body[msg.size];
956 if (_to_ui->read(body, msg.size) != msg.size) {
957 error << "Error reading from Plugin=>UI RingBuffer" << endmsg;
961 sink(controller, msg.index, msg.size, msg.protocol, body);
963 read_space -= sizeof(msg) + msg.size;
968 LV2Plugin::work(uint32_t size, const void* data)
970 return _impl->work_iface->work(
971 _impl->instance->lv2_handle, work_respond, this, size, data);
975 LV2Plugin::work_response(uint32_t size, const void* data)
977 return _impl->work_iface->work_response(
978 _impl->instance->lv2_handle, size, data);
982 LV2Plugin::set_insert_info(const PluginInsert* insert)
984 _insert_id = insert->id();
988 LV2Plugin::set_state(const XMLNode& node, int version)
991 const XMLProperty* prop;
992 XMLNodeConstIterator iter;
997 LocaleGuard lg(X_("POSIX"));
999 if (node.name() != state_node_name()) {
1000 error << _("Bad node sent to LV2Plugin::set_state") << endmsg;
1004 if (version < 3000) {
1005 nodes = node.children("port");
1007 nodes = node.children("Port");
1010 for (iter = nodes.begin(); iter != nodes.end(); ++iter) {
1014 if ((prop = child->property("symbol")) != 0) {
1015 sym = prop->value().c_str();
1017 warning << _("LV2: port has no symbol, ignored") << endmsg;
1021 map<string, uint32_t>::iterator i = _port_indices.find(sym);
1023 if (i != _port_indices.end()) {
1024 port_id = i->second;
1026 warning << _("LV2: port has unknown index, ignored") << endmsg;
1030 if ((prop = child->property("value")) != 0) {
1031 value = prop->value().c_str();
1033 warning << _("LV2: port has no value, ignored") << endmsg;
1037 set_parameter(port_id, atof(value));
1040 #ifdef HAVE_NEW_LILV
1042 if ((prop = node.property("state-dir")) != 0) {
1043 if (sscanf(prop->value().c_str(), "state%u", &_state_version) != 1) {
1044 error << string_compose(
1045 "LV2: failed to parse state version from \"%1\"",
1046 prop->value()) << endmsg;
1049 std::string state_file = Glib::build_filename(
1051 Glib::build_filename(prop->value(), "state.ttl"));
1053 cout << "Loading LV2 state from " << state_file << endl;
1054 LilvState* state = lilv_state_new_from_file(
1055 _world.world, _uri_map.urid_map(), NULL, state_file.c_str());
1057 lilv_state_restore(state, _impl->instance, NULL, NULL, 0, NULL);
1061 latency_compute_run();
1063 return Plugin::set_state(node, version);
1067 LV2Plugin::get_parameter_descriptor(uint32_t which, ParameterDescriptor& desc) const
1069 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, which);
1071 LilvNode *def, *min, *max;
1072 lilv_port_get_range(_impl->plugin, port, &def, &min, &max);
1074 desc.integer_step = lilv_port_has_property(_impl->plugin, port, _world.lv2_integer);
1075 desc.toggled = lilv_port_has_property(_impl->plugin, port, _world.lv2_toggled);
1076 desc.logarithmic = lilv_port_has_property(_impl->plugin, port, _world.ext_logarithmic);
1077 desc.sr_dependent = lilv_port_has_property(_impl->plugin, port, _world.lv2_sampleRate);
1078 desc.label = lilv_node_as_string(lilv_port_get_name(_impl->plugin, port));
1079 desc.lower = min ? lilv_node_as_float(min) : 0.0f;
1080 desc.upper = max ? lilv_node_as_float(max) : 1.0f;
1081 if (desc.sr_dependent) {
1082 desc.lower *= _session.frame_rate ();
1083 desc.upper *= _session.frame_rate ();
1086 desc.min_unbound = false; // TODO: LV2 extension required
1087 desc.max_unbound = false; // TODO: LV2 extension required
1089 if (desc.integer_step) {
1091 desc.smallstep = 0.1;
1092 desc.largestep = 10.0;
1094 const float delta = desc.upper - desc.lower;
1095 desc.step = delta / 1000.0f;
1096 desc.smallstep = delta / 10000.0f;
1097 desc.largestep = delta / 10.0f;
1100 desc.enumeration = lilv_port_has_property(_impl->plugin, port, _world.lv2_enumeration);
1102 lilv_node_free(def);
1103 lilv_node_free(min);
1104 lilv_node_free(max);
1110 LV2Plugin::describe_parameter(Evoral::Parameter which)
1112 if (( which.type() == PluginAutomation) && ( which.id() < parameter_count()) ) {
1113 LilvNode* name = lilv_port_get_name(_impl->plugin,
1114 lilv_plugin_get_port_by_index(_impl->plugin, which.id()));
1115 string ret(lilv_node_as_string(name));
1116 lilv_node_free(name);
1124 LV2Plugin::signal_latency() const
1126 if (_latency_control_port) {
1127 return (framecnt_t)floor(*_latency_control_port);
1133 set<Evoral::Parameter>
1134 LV2Plugin::automatable() const
1136 set<Evoral::Parameter> ret;
1138 for (uint32_t i = 0; i < parameter_count(); ++i) {
1139 if (parameter_is_input(i) && parameter_is_control(i)) {
1140 ret.insert(ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
1148 LV2Plugin::activate()
1150 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 activate\n", name()));
1152 if (!_was_activated) {
1153 lilv_instance_activate(_impl->instance);
1154 _was_activated = true;
1159 LV2Plugin::deactivate()
1161 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 deactivate\n", name()));
1163 if (_was_activated) {
1164 lilv_instance_deactivate(_impl->instance);
1165 _was_activated = false;
1170 LV2Plugin::cleanup()
1172 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 cleanup\n", name()));
1176 lilv_instance_free(_impl->instance);
1177 _impl->instance = NULL;
1181 LV2Plugin::connect_and_run(BufferSet& bufs,
1182 ChanMapping in_map, ChanMapping out_map,
1183 pframes_t nframes, framecnt_t offset)
1185 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 run %2 offset %3\n", name(), nframes, offset));
1186 Plugin::connect_and_run(bufs, in_map, out_map, nframes, offset);
1188 cycles_t then = get_cycles();
1190 if (_freewheel_control_port) {
1191 *_freewheel_control_port = _session.engine().freewheeling ();
1194 if (_bpm_control_port) {
1195 TempoMap& tmap (_session.tempo_map ());
1196 Tempo tempo = tmap.tempo_at (_session.transport_frame () + offset);
1197 *_bpm_control_port = tempo.beats_per_minute ();
1200 ChanCount bufs_count;
1201 bufs_count.set(DataType::AUDIO, 1);
1202 bufs_count.set(DataType::MIDI, 1);
1203 BufferSet& silent_bufs = _session.get_silent_buffers(bufs_count);
1204 BufferSet& scratch_bufs = _session.get_silent_buffers(bufs_count);
1205 uint32_t const num_ports = parameter_count();
1207 uint32_t audio_in_index = 0;
1208 uint32_t audio_out_index = 0;
1209 uint32_t midi_in_index = 0;
1210 uint32_t midi_out_index = 0;
1212 for (uint32_t port_index = 0; port_index < num_ports; ++port_index) {
1215 PortFlags flags = _port_flags[port_index];
1216 if (flags & PORT_AUDIO) {
1217 if (flags & PORT_INPUT) {
1218 index = in_map.get(DataType::AUDIO, audio_in_index++, &valid);
1220 ? bufs.get_audio(index).data(offset)
1221 : silent_bufs.get_audio(0).data(offset);
1223 index = out_map.get(DataType::AUDIO, audio_out_index++, &valid);
1225 ? bufs.get_audio(index).data(offset)
1226 : scratch_bufs.get_audio(0).data(offset);
1228 } else if (flags & (PORT_EVENT|PORT_MESSAGE)) {
1229 /* FIXME: The checks here for bufs.count().n_midi() > index shouldn't
1230 be necessary, but the mapping is illegal in some cases. Ideally
1231 that should be fixed, but this is easier...
1233 if (flags & PORT_INPUT) {
1234 index = in_map.get(DataType::MIDI, midi_in_index++, &valid);
1235 _ev_buffers[port_index] = (valid && bufs.count().n_midi() > index)
1236 ? bufs.get_lv2_midi(true, index, flags & PORT_EVENT)
1237 : silent_bufs.get_lv2_midi(true, 0, flags & PORT_EVENT);
1238 buf = lv2_evbuf_get_buffer(_ev_buffers[port_index]);
1240 index = out_map.get(DataType::MIDI, midi_out_index++, &valid);
1241 _ev_buffers[port_index] = (valid && bufs.count().n_midi() > index)
1242 ? bufs.get_lv2_midi(false, index, flags & PORT_EVENT)
1243 : scratch_bufs.get_lv2_midi(false, 0, flags & PORT_EVENT);
1244 buf = lv2_evbuf_get_buffer(_ev_buffers[port_index]);
1247 continue; // Control port, leave buffer alone
1249 lilv_instance_connect_port(_impl->instance, port_index, buf);
1252 // Read messages from UI and push into appropriate buffers
1254 uint32_t read_space = _from_ui->read_space();
1255 while (read_space > sizeof(UIMessage)) {
1257 if (_from_ui->read((uint8_t*)&msg, sizeof(msg)) != sizeof(msg)) {
1258 error << "Error reading from UI=>Plugin RingBuffer" << endmsg;
1261 uint8_t body[msg.size];
1262 if (_from_ui->read(body, msg.size) != msg.size) {
1263 error << "Error reading from UI=>Plugin RingBuffer" << endmsg;
1266 if (msg.protocol == _event_transfer_type) {
1267 LV2_Evbuf* buf = _ev_buffers[msg.index];
1268 LV2_Evbuf_Iterator i = lv2_evbuf_end(buf);
1269 const LV2_Atom* const atom = (const LV2_Atom*)body;
1270 lv2_evbuf_write(&i, nframes, 0, atom->type, atom->size,
1271 (const uint8_t*)LV2_ATOM_BODY(atom));
1273 error << "Received unknown message type from UI" << endmsg;
1275 read_space -= sizeof(UIMessage) + msg.size;
1282 for (uint32_t port_index = 0; port_index < num_ports; ++port_index) {
1283 PortFlags flags = _port_flags[port_index];
1285 // Flush MIDI (write back to Ardour MIDI buffers)
1286 if ((flags & PORT_OUTPUT) && (flags & (PORT_EVENT|PORT_MESSAGE))) {
1287 const uint32_t buf_index = out_map.get(
1288 DataType::MIDI, midi_out_index++, &valid);
1290 bufs.flush_lv2_midi(true, buf_index);
1294 // Write messages to UI
1295 if (_to_ui && (flags & PORT_OUTPUT) && (flags & PORT_MESSAGE)) {
1296 LV2_Evbuf* buf = _ev_buffers[port_index];
1297 for (LV2_Evbuf_Iterator i = lv2_evbuf_begin(buf);
1298 lv2_evbuf_is_valid(i);
1299 i = lv2_evbuf_next(i)) {
1300 uint32_t frames, subframes, type, size;
1302 lv2_evbuf_get(i, &frames, &subframes, &type, &size, &data);
1303 write_to_ui(port_index, _event_transfer_type,
1304 size + sizeof(LV2_Atom),
1305 data - sizeof(LV2_Atom));
1310 cycles_t now = get_cycles();
1311 set_cycles((uint32_t)(now - then));
1317 LV2Plugin::parameter_is_control(uint32_t param) const
1319 assert(param < _port_flags.size());
1320 return _port_flags[param] & PORT_CONTROL;
1324 LV2Plugin::parameter_is_audio(uint32_t param) const
1326 assert(param < _port_flags.size());
1327 return _port_flags[param] & PORT_AUDIO;
1331 LV2Plugin::parameter_is_event(uint32_t param) const
1333 assert(param < _port_flags.size());
1334 return _port_flags[param] & PORT_EVENT;
1338 LV2Plugin::parameter_is_output(uint32_t param) const
1340 assert(param < _port_flags.size());
1341 return _port_flags[param] & PORT_OUTPUT;
1345 LV2Plugin::parameter_is_input(uint32_t param) const
1347 assert(param < _port_flags.size());
1348 return _port_flags[param] & PORT_INPUT;
1352 LV2Plugin::print_parameter(uint32_t param, char* buf, uint32_t len) const
1355 if (param < parameter_count()) {
1356 snprintf(buf, len, "%.3f", get_parameter(param));
1363 boost::shared_ptr<Plugin::ScalePoints>
1364 LV2Plugin::get_scale_points(uint32_t port_index) const
1366 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, port_index);
1367 LilvScalePoints* points = lilv_port_get_scale_points(_impl->plugin, port);
1369 boost::shared_ptr<Plugin::ScalePoints> ret;
1374 ret = boost::shared_ptr<Plugin::ScalePoints>(new ScalePoints());
1376 LILV_FOREACH(scale_points, i, points) {
1377 const LilvScalePoint* p = lilv_scale_points_get(points, i);
1378 const LilvNode* label = lilv_scale_point_get_label(p);
1379 const LilvNode* value = lilv_scale_point_get_value(p);
1380 if (label && (lilv_node_is_float(value) || lilv_node_is_int(value))) {
1381 ret->insert(make_pair(lilv_node_as_string(label),
1382 lilv_node_as_float(value)));
1386 lilv_scale_points_free(points);
1391 LV2Plugin::run(pframes_t nframes)
1393 uint32_t const N = parameter_count();
1394 for (uint32_t i = 0; i < N; ++i) {
1395 if (parameter_is_control(i) && parameter_is_input(i)) {
1396 _control_data[i] = _shadow_data[i];
1400 lilv_instance_run(_impl->instance, nframes);
1402 if (_impl->work_iface) {
1403 _worker->emit_responses();
1404 if (_impl->work_iface->end_run) {
1405 _impl->work_iface->end_run(_impl->instance->lv2_handle);
1411 LV2Plugin::latency_compute_run()
1413 if (!_latency_control_port) {
1417 // Run the plugin so that it can set its latency parameter
1421 uint32_t port_index = 0;
1422 uint32_t in_index = 0;
1423 uint32_t out_index = 0;
1425 const framecnt_t bufsize = 1024;
1426 float buffer[bufsize];
1428 memset(buffer, 0, sizeof(float) * bufsize);
1430 // FIXME: Ensure plugins can handle in-place processing
1434 while (port_index < parameter_count()) {
1435 if (parameter_is_audio(port_index)) {
1436 if (parameter_is_input(port_index)) {
1437 lilv_instance_connect_port(_impl->instance, port_index, buffer);
1439 } else if (parameter_is_output(port_index)) {
1440 lilv_instance_connect_port(_impl->instance, port_index, buffer);
1452 LV2Plugin::Impl::designated_input (const char* uri, void** bufptrs[], void** bufptr)
1454 LilvPort* port = NULL;
1455 #ifdef HAVE_NEW_LILV
1456 LilvNode* designation = lilv_new_uri(_world.world, uri);
1457 port = lilv_plugin_get_port_by_designation(
1458 plugin, _world.lv2_InputPort, designation);
1459 lilv_node_free(designation);
1461 bufptrs[lilv_port_get_index(plugin, port)] = bufptr;
1467 LV2World::LV2World()
1468 : world(lilv_world_new())
1470 lilv_world_load_all(world);
1471 atom_AtomPort = lilv_new_uri(world, LV2_ATOM__AtomPort);
1472 atom_Chunk = lilv_new_uri(world, LV2_ATOM__Chunk);
1473 atom_Sequence = lilv_new_uri(world, LV2_ATOM__Sequence);
1474 atom_bufferType = lilv_new_uri(world, LV2_ATOM__bufferType);
1475 atom_eventTransfer = lilv_new_uri(world, LV2_ATOM__eventTransfer);
1476 ev_EventPort = lilv_new_uri(world, LILV_URI_EVENT_PORT);
1477 ext_logarithmic = lilv_new_uri(world, "http://lv2plug.in/ns/dev/extportinfo#logarithmic");
1478 lv2_AudioPort = lilv_new_uri(world, LILV_URI_AUDIO_PORT);
1479 lv2_ControlPort = lilv_new_uri(world, LILV_URI_CONTROL_PORT);
1480 lv2_InputPort = lilv_new_uri(world, LILV_URI_INPUT_PORT);
1481 lv2_OutputPort = lilv_new_uri(world, LILV_URI_OUTPUT_PORT);
1482 lv2_inPlaceBroken = lilv_new_uri(world, LILV_NS_LV2 "inPlaceBroken");
1483 lv2_integer = lilv_new_uri(world, LILV_NS_LV2 "integer");
1484 lv2_sampleRate = lilv_new_uri(world, LILV_NS_LV2 "sampleRate");
1485 lv2_toggled = lilv_new_uri(world, LILV_NS_LV2 "toggled");
1486 lv2_enumeration = lilv_new_uri(world, LILV_NS_LV2 "enumeration");
1487 midi_MidiEvent = lilv_new_uri(world, LILV_URI_MIDI_EVENT);
1488 ui_GtkUI = lilv_new_uri(world, NS_UI "GtkUI");
1489 ui_external = lilv_new_uri(world, NS_UI "external");
1492 LV2World::~LV2World()
1494 lilv_node_free(ui_external);
1495 lilv_node_free(ui_GtkUI);
1496 lilv_node_free(midi_MidiEvent);
1497 lilv_node_free(lv2_toggled);
1498 lilv_node_free(lv2_sampleRate);
1499 lilv_node_free(lv2_integer);
1500 lilv_node_free(lv2_inPlaceBroken);
1501 lilv_node_free(lv2_OutputPort);
1502 lilv_node_free(lv2_InputPort);
1503 lilv_node_free(lv2_ControlPort);
1504 lilv_node_free(lv2_AudioPort);
1505 lilv_node_free(ext_logarithmic);
1506 lilv_node_free(ev_EventPort);
1507 lilv_node_free(atom_eventTransfer);
1508 lilv_node_free(atom_bufferType);
1509 lilv_node_free(atom_Sequence);
1510 lilv_node_free(atom_Chunk);
1511 lilv_node_free(atom_AtomPort);
1514 LV2PluginInfo::LV2PluginInfo (void* c_plugin)
1515 : _c_plugin(c_plugin)
1520 LV2PluginInfo::~LV2PluginInfo()
1524 LV2PluginInfo::load(Session& session)
1529 plugin.reset(new LV2Plugin(session.engine(), session,
1530 (LilvPlugin*)_c_plugin,
1531 session.frame_rate()));
1533 plugin->set_info(PluginInfoPtr(new LV2PluginInfo(*this)));
1535 } catch (failed_constructor& err) {
1536 return PluginPtr((Plugin*)0);
1543 LV2PluginInfo::discover()
1545 PluginInfoList* plugs = new PluginInfoList;
1546 const LilvPlugins* plugins = lilv_world_get_all_plugins(_world.world);
1548 cerr << "LV2: Discovering " << lilv_plugins_size(plugins) << " plugins" << endl;
1550 LILV_FOREACH(plugins, i, plugins) {
1551 const LilvPlugin* p = lilv_plugins_get(plugins, i);
1552 LV2PluginInfoPtr info(new LV2PluginInfo((void*)p));
1554 LilvNode* name = lilv_plugin_get_name(p);
1556 cerr << "LV2: invalid plugin\n";
1562 info->name = string(lilv_node_as_string(name));
1563 lilv_node_free(name);
1565 const LilvPluginClass* pclass = lilv_plugin_get_class(p);
1566 const LilvNode* label = lilv_plugin_class_get_label(pclass);
1567 info->category = lilv_node_as_string(label);
1569 LilvNode* author_name = lilv_plugin_get_author_name(p);
1570 info->creator = author_name ? string(lilv_node_as_string(author_name)) : "Unknown";
1571 lilv_node_free(author_name);
1573 info->path = "/NOPATH"; // Meaningless for LV2
1575 info->n_inputs.set_audio(
1576 lilv_plugin_get_num_ports_of_class(
1577 p, _world.lv2_InputPort, _world.lv2_AudioPort, NULL));
1578 info->n_inputs.set_midi(
1579 lilv_plugin_get_num_ports_of_class(
1580 p, _world.lv2_InputPort, _world.ev_EventPort, NULL)
1581 + lilv_plugin_get_num_ports_of_class(
1582 p, _world.lv2_InputPort, _world.atom_AtomPort, NULL));
1584 info->n_outputs.set_audio(
1585 lilv_plugin_get_num_ports_of_class(
1586 p, _world.lv2_OutputPort, _world.lv2_AudioPort, NULL));
1587 info->n_outputs.set_midi(
1588 lilv_plugin_get_num_ports_of_class(
1589 p, _world.lv2_OutputPort, _world.ev_EventPort, NULL)
1590 + lilv_plugin_get_num_ports_of_class(
1591 p, _world.lv2_OutputPort, _world.atom_AtomPort, NULL));
1593 info->unique_id = lilv_node_as_uri(lilv_plugin_get_uri(p));
1594 info->index = 0; // Meaningless for LV2
1596 plugs->push_back(info);
1599 cerr << "Done LV2 discovery" << endl;