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)
157 /** Find the LV2 input port with the given designation.
158 * If found, bufptrs[port_index] will be set to bufptr.
160 LilvPort* designated_input (const char* uri, void** bufptrs[], void** bufptr);
164 const LilvNode* ui_type;
167 LilvInstance* instance;
168 LV2_Worker_Interface* work_iface;
172 LV2Plugin::LV2Plugin (AudioEngine& engine,
176 : Plugin(engine, session)
182 init(c_plugin, rate);
185 LV2Plugin::LV2Plugin (const LV2Plugin& other)
190 , _insert_id(other._insert_id)
192 init(other._impl->plugin, other._sample_rate);
194 for (uint32_t i = 0; i < parameter_count(); ++i) {
195 _control_data[i] = other._shadow_data[i];
196 _shadow_data[i] = other._shadow_data[i];
201 LV2Plugin::init(void* c_plugin, framecnt_t rate)
203 DEBUG_TRACE(DEBUG::LV2, "init\n");
205 _impl->plugin = (LilvPlugin*)c_plugin;
207 _impl->ui_type = NULL;
213 _bpm_control_port = 0;
214 _freewheel_control_port = 0;
215 _latency_control_port = 0;
217 _was_activated = false;
218 _has_state_interface = false;
220 _instance_access_feature.URI = "http://lv2plug.in/ns/ext/instance-access";
221 _data_access_feature.URI = "http://lv2plug.in/ns/ext/data-access";
222 _make_path_feature.URI = LV2_STATE__makePath;
223 _work_schedule_feature.URI = LV2_WORKER__schedule;
225 LilvPlugin* plugin = _impl->plugin;
227 LilvNode* state_iface_uri = lilv_new_uri(_world.world, LV2_STATE__interface);
228 LilvNode* state_uri = lilv_new_uri(_world.world, LV2_STATE_URI);
229 _has_state_interface =
230 // What plugins should have (lv2:extensionData state:Interface)
231 lilv_plugin_has_extension_data(plugin, state_iface_uri)
232 // What some outdated/incorrect ones have
233 || lilv_plugin_has_feature(plugin, state_uri);
234 lilv_node_free(state_uri);
235 lilv_node_free(state_iface_uri);
237 _features = (LV2_Feature**)malloc(sizeof(LV2_Feature*) * 8);
238 _features[0] = &_instance_access_feature;
239 _features[1] = &_data_access_feature;
240 _features[2] = &_make_path_feature;
241 _features[3] = _uri_map.uri_map_feature();
242 _features[4] = _uri_map.urid_map_feature();
243 _features[5] = _uri_map.urid_unmap_feature();
247 LV2_State_Make_Path* make_path = (LV2_State_Make_Path*)malloc(
248 sizeof(LV2_State_Make_Path));
249 make_path->handle = this;
250 make_path->path = &lv2_state_make_path;
251 _make_path_feature.data = make_path;
253 LilvNode* worker_schedule = lilv_new_uri(_world.world, LV2_WORKER__schedule);
254 if (lilv_plugin_has_feature(plugin, worker_schedule)) {
255 LV2_Worker_Schedule* schedule = (LV2_Worker_Schedule*)malloc(
256 sizeof(LV2_Worker_Schedule));
257 _worker = new Worker(this, 4096);
258 schedule->handle = this;
259 schedule->schedule_work = work_schedule;
260 _work_schedule_feature.data = schedule;
261 _features[6] = &_work_schedule_feature;
263 lilv_node_free(worker_schedule);
265 _impl->instance = lilv_plugin_instantiate(plugin, rate, _features);
266 _impl->name = lilv_plugin_get_name(plugin);
267 _impl->author = lilv_plugin_get_author_name(plugin);
269 if (_impl->instance == 0) {
270 error << _("LV2: Failed to instantiate plugin ") << uri() << endmsg;
271 throw failed_constructor();
274 _instance_access_feature.data = (void*)_impl->instance->lv2_handle;
275 _data_access_extension_data.extension_data = _impl->instance->lv2_descriptor->extension_data;
276 _data_access_feature.data = &_data_access_extension_data;
278 _impl->work_iface = (LV2_Worker_Interface*)extension_data(LV2_WORKER__interface);
280 if (lilv_plugin_has_feature(plugin, _world.lv2_inPlaceBroken)) {
281 error << string_compose(
282 _("LV2: \"%1\" cannot be used, since it cannot do inplace processing"),
283 lilv_node_as_string(_impl->name)) << endmsg;
284 lilv_node_free(_impl->name);
285 lilv_node_free(_impl->author);
286 throw failed_constructor();
291 const uint32_t num_ports = this->num_ports();
292 for (uint32_t i = 0; i < num_ports; ++i) {
293 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, i);
296 if (lilv_port_is_a(_impl->plugin, port, _world.lv2_OutputPort)) {
297 flags |= PORT_OUTPUT;
298 } else if (lilv_port_is_a(_impl->plugin, port, _world.lv2_InputPort)) {
301 error << string_compose(
302 "LV2: \"%1\" port %2 is neither input nor output",
303 lilv_node_as_string(_impl->name), i) << endmsg;
304 throw failed_constructor();
307 if (lilv_port_is_a(_impl->plugin, port, _world.lv2_ControlPort)) {
308 flags |= PORT_CONTROL;
309 } else if (lilv_port_is_a(_impl->plugin, port, _world.lv2_AudioPort)) {
311 } else if (lilv_port_is_a(_impl->plugin, port, _world.ev_EventPort)) {
313 } else if (lilv_port_is_a(_impl->plugin, port, _world.atom_AtomPort)) {
314 LilvNodes* buffer_types = lilv_port_get_value(
315 _impl->plugin, port, _world.atom_bufferType);
316 if (lilv_nodes_contains(buffer_types, _world.atom_Sequence)) {
317 flags |= PORT_MESSAGE;
319 lilv_nodes_free(buffer_types);
321 error << string_compose(
322 "LV2: \"%1\" port %2 has no known data type",
323 lilv_node_as_string(_impl->name), i) << endmsg;
324 throw failed_constructor();
327 _port_flags.push_back(flags);
330 _control_data = new float[num_ports];
331 _shadow_data = new float[num_ports];
332 _defaults = new float[num_ports];
333 _ev_buffers = new LV2_Evbuf*[num_ports];
334 memset(_ev_buffers, 0, sizeof(LV2_Evbuf*) * num_ports);
336 const bool latent = lilv_plugin_has_latency(plugin);
337 const uint32_t latency_index = (latent)
338 ? lilv_plugin_get_latency_port_index(plugin)
341 #define NS_TIME "http://lv2plug.in/ns/ext/time#"
343 // Build an array of pointers to special parameter buffers
344 void*** params = new void**[num_ports];
345 for (uint32_t i = 0; i < num_ports; ++i) {
348 _impl->designated_input (NS_TIME "beatsPerMinute", params, (void**)&_bpm_control_port);
349 _impl->designated_input (LILV_NS_LV2 "freeWheeling", params, (void**)&_freewheel_control_port);
351 for (uint32_t i = 0; i < num_ports; ++i) {
352 const LilvPort* port = lilv_plugin_get_port_by_index(plugin, i);
353 const LilvNode* sym = lilv_port_get_symbol(plugin, port);
355 // Store index in map so we can look up index by symbol
356 _port_indices.insert(std::make_pair(lilv_node_as_string(sym), i));
358 // Get range and default value if applicable
359 if (parameter_is_control(i)) {
361 lilv_port_get_range(plugin, port, &def, NULL, NULL);
362 _defaults[i] = def ? lilv_node_as_float(def) : 0.0f;
363 if (lilv_port_has_property (plugin, port, _world.lv2_sampleRate)) {
364 _defaults[i] *= _session.frame_rate ();
368 lilv_instance_connect_port(_impl->instance, i, &_control_data[i]);
370 if (latent && i == latency_index) {
371 _latency_control_port = &_control_data[i];
372 *_latency_control_port = 0;
375 if (parameter_is_input(i)) {
376 _shadow_data[i] = default_value(i);
378 *params[i] = (void*)&_shadow_data[i];
388 LilvUIs* uis = lilv_plugin_get_uis(plugin);
389 if (lilv_uis_size(uis) > 0) {
391 // Look for embeddable UI
392 LILV_FOREACH(uis, u, uis) {
393 const LilvUI* this_ui = lilv_uis_get(uis, u);
394 const LilvNode* this_ui_type = NULL;
395 if (lilv_ui_is_supported(this_ui,
399 // TODO: Multiple UI support
401 _impl->ui_type = this_ui_type;
406 // Look for Gtk native UI
407 LILV_FOREACH(uis, i, uis) {
408 const LilvUI* ui = lilv_uis_get(uis, i);
409 if (lilv_ui_is_a(ui, _world.ui_GtkUI)) {
411 _impl->ui_type = _world.ui_GtkUI;
417 // If Gtk UI is not available, try to find external UI
419 LILV_FOREACH(uis, i, uis) {
420 const LilvUI* ui = lilv_uis_get(uis, i);
421 if (lilv_ui_is_a(ui, _world.ui_external)) {
423 _impl->ui_type = _world.ui_external;
430 latency_compute_run();
433 LV2Plugin::~LV2Plugin ()
435 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 destroy\n", name()));
440 lilv_instance_free(_impl->instance);
441 lilv_node_free(_impl->name);
442 lilv_node_free(_impl->author);
445 free(_make_path_feature.data);
446 free(_work_schedule_feature.data);
451 delete [] _control_data;
452 delete [] _shadow_data;
453 delete [] _ev_buffers;
457 LV2Plugin::is_external_ui() const
462 return lilv_ui_is_a(_impl->ui, _world.ui_external);
466 LV2Plugin::ui_is_resizable () const
468 const LilvNode* s = lilv_ui_get_uri(_impl->ui);
469 LilvNode* p = lilv_new_uri(_world.world, NS_UI "optionalFeature");
470 LilvNode* fs = lilv_new_uri(_world.world, NS_UI "fixedSize");
471 LilvNode* nrs = lilv_new_uri(_world.world, NS_UI "noUserResize");
473 LilvNodes* fs_matches = lilv_world_find_nodes(_world.world, s, p, fs);
474 LilvNodes* nrs_matches = lilv_world_find_nodes(_world.world, s, p, nrs);
476 lilv_nodes_free(nrs_matches);
477 lilv_nodes_free(fs_matches);
482 return !fs_matches && !nrs_matches;
486 LV2Plugin::unique_id() const
488 return lilv_node_as_uri(lilv_plugin_get_uri(_impl->plugin));
492 LV2Plugin::uri() const
494 return lilv_node_as_uri(lilv_plugin_get_uri(_impl->plugin));
498 LV2Plugin::label() const
500 return lilv_node_as_string(_impl->name);
504 LV2Plugin::name() const
506 return lilv_node_as_string(_impl->name);
510 LV2Plugin::maker() const
512 return _impl->author ? lilv_node_as_string (_impl->author) : "Unknown";
516 LV2Plugin::num_ports() const
518 return lilv_plugin_get_num_ports(_impl->plugin);
522 LV2Plugin::parameter_count() const
524 return lilv_plugin_get_num_ports(_impl->plugin);
528 LV2Plugin::default_value(uint32_t port)
530 return _defaults[port];
534 LV2Plugin::port_symbol(uint32_t index) const
536 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, index);
538 error << name() << ": Invalid port index " << index << endmsg;
541 const LilvNode* sym = lilv_port_get_symbol(_impl->plugin, port);
542 return lilv_node_as_string(sym);
546 LV2Plugin::port_index (const char* symbol) const
548 const map<string, uint32_t>::const_iterator i = _port_indices.find(symbol);
549 if (i != _port_indices.end()) {
552 warning << string_compose(_("LV2: Unknown port %1"), symbol) << endmsg;
558 LV2Plugin::set_parameter(uint32_t which, float val)
560 DEBUG_TRACE(DEBUG::LV2, string_compose(
561 "%1 set parameter %2 to %3\n", name(), which, val));
563 if (which < lilv_plugin_get_num_ports(_impl->plugin)) {
564 _shadow_data[which] = val;
566 warning << string_compose(
567 _("Illegal parameter number used with plugin \"%1\". "
568 "This is a bug in either %2 or the LV2 plugin <%3>"),
569 name(), PROGRAM_NAME, unique_id()) << endmsg;
572 Plugin::set_parameter(which, val);
576 LV2Plugin::get_parameter(uint32_t which) const
578 if (parameter_is_input(which)) {
579 return (float)_shadow_data[which];
581 return (float)_control_data[which];
587 LV2Plugin::nth_parameter(uint32_t n, bool& ok) const
590 for (uint32_t c = 0, x = 0; x < lilv_plugin_get_num_ports(_impl->plugin); ++x) {
591 if (parameter_is_control(x)) {
603 LV2Plugin::extension_data (const char* uri) const
605 return lilv_instance_get_extension_data(_impl->instance, uri);
609 LV2Plugin::c_plugin ()
611 return _impl->plugin;
617 return (void*)_impl->ui;
621 LV2Plugin::c_ui_type ()
623 return (void*)_impl->ui_type;
626 /** Directory for all plugin state. */
628 LV2Plugin::plugin_dir() const
630 return Glib::build_filename(_session.plugins_dir(), _insert_id.to_s());
633 /** Directory for files created by the plugin (except during save). */
635 LV2Plugin::scratch_dir() const
637 return Glib::build_filename(plugin_dir(), "scratch");
640 /** Directory for snapshots of files in the scratch directory. */
642 LV2Plugin::file_dir() const
644 return Glib::build_filename(plugin_dir(), "files");
647 /** Directory to save state snapshot version @c num into. */
649 LV2Plugin::state_dir(unsigned num) const
651 return Glib::build_filename(plugin_dir(), string_compose("state%1", num));
654 /** Implementation of state:makePath for files created at instantiation time.
655 * Note this is not used for files created at save time (Lilv deals with that).
658 LV2Plugin::lv2_state_make_path(LV2_State_Make_Path_Handle handle,
661 LV2Plugin* me = (LV2Plugin*)handle;
662 if (me->_insert_id == PBD::ID("0")) {
663 warning << string_compose(
664 "File path \"%1\" requested but LV2 %2 has no insert ID",
665 path, me->name()) << endmsg;
666 return g_strdup(path);
669 const std::string abs_path = Glib::build_filename(me->scratch_dir(), path);
670 const std::string dirname = Glib::path_get_dirname(abs_path);
671 g_mkdir_with_parents(dirname.c_str(), 0744);
673 DEBUG_TRACE(DEBUG::LV2, string_compose("new file path %1 => %2\n",
676 std::cerr << "MAKE PATH " << path
677 << " => " << g_strndup(abs_path.c_str(), abs_path.length())
679 return g_strndup(abs_path.c_str(), abs_path.length());
683 remove_directory(const std::string& path)
685 if (!Glib::file_test(path, Glib::FILE_TEST_IS_DIR)) {
686 warning << string_compose("\"%1\" is not a directory", path) << endmsg;
690 Glib::RefPtr<Gio::File> dir = Gio::File::create_for_path(path);
691 Glib::RefPtr<Gio::FileEnumerator> e = dir->enumerate_children();
692 Glib::RefPtr<Gio::FileInfo> fi;
693 while ((fi = e->next_file())) {
694 if (fi->get_type() == Gio::FILE_TYPE_DIRECTORY) {
695 remove_directory(fi->get_name());
697 dir->get_child(fi->get_name())->remove();
704 LV2Plugin::add_state(XMLNode* root) const
706 assert(_insert_id != PBD::ID("0"));
710 LocaleGuard lg(X_("POSIX"));
712 for (uint32_t i = 0; i < parameter_count(); ++i) {
713 if (parameter_is_input(i) && parameter_is_control(i)) {
714 child = new XMLNode("Port");
715 child->add_property("symbol", port_symbol(i));
716 snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]);
717 child->add_property("value", string(buf));
718 root->add_child_nocopy(*child);
722 if (_has_state_interface) {
723 cout << "LV2 " << name() << " has state interface" << endl;
724 // Provisionally increment state version and create directory
725 const std::string new_dir = state_dir(++_state_version);
726 g_mkdir_with_parents(new_dir.c_str(), 0744);
728 cout << "NEW DIR: " << new_dir << endl;
730 LilvState* state = lilv_state_new_from_instance(
734 scratch_dir().c_str(),
736 _session.externals_dir().c_str(),
743 if (!_impl->state || !lilv_state_equals(state, _impl->state)) {
744 lilv_state_save(_world.world,
746 _uri_map.urid_unmap(),
752 lilv_state_free(_impl->state);
753 _impl->state = state;
755 cout << "Saved LV2 state to " << state_dir(_state_version) << endl;
757 // State is identical, decrement version and nuke directory
758 cout << "LV2 state identical, not saving" << endl;
759 lilv_state_free(state);
760 remove_directory(new_dir);
764 root->add_property("state-dir", string_compose("state%1", _state_version));
766 cout << "LV2 " << name() << " has no state interface." << endl;
770 static inline const LilvNode*
771 get_value(LilvWorld* world, const LilvNode* subject, const LilvNode* predicate)
773 LilvNodes* vs = lilv_world_find_nodes(world, subject, predicate, NULL);
774 return vs ? lilv_nodes_get_first(vs) : NULL;
778 LV2Plugin::find_presets()
780 LilvNode* lv2_appliesTo = lilv_new_uri(_world.world, LILV_NS_LV2 "appliesTo");
781 LilvNode* pset_Preset = lilv_new_uri(_world.world, NS_PSET "Preset");
782 LilvNode* rdfs_label = lilv_new_uri(_world.world, LILV_NS_RDFS "label");
784 LilvNodes* presets = lilv_plugin_get_related(_impl->plugin, pset_Preset);
785 LILV_FOREACH(nodes, i, presets) {
786 const LilvNode* preset = lilv_nodes_get(presets, i);
787 lilv_world_load_resource(_world.world, preset);
788 const LilvNode* name = get_value(_world.world, preset, rdfs_label);
790 _presets.insert(std::make_pair(lilv_node_as_string(preset),
791 Plugin::PresetRecord(
792 lilv_node_as_string(preset),
793 lilv_node_as_string(name))));
795 warning << string_compose(
796 _("Plugin \"%1\% preset \"%2%\" is missing a label\n"),
797 lilv_node_as_string(lilv_plugin_get_uri(_impl->plugin)),
798 lilv_node_as_string(preset)) << endmsg;
801 lilv_nodes_free(presets);
803 lilv_node_free(rdfs_label);
804 lilv_node_free(pset_Preset);
805 lilv_node_free(lv2_appliesTo);
809 LV2Plugin::load_preset(PresetRecord r)
811 Plugin::load_preset(r);
813 std::map<std::string,uint32_t>::iterator it;
815 LilvNode* lv2_port = lilv_new_uri(_world.world, LILV_NS_LV2 "port");
816 LilvNode* lv2_symbol = lilv_new_uri(_world.world, LILV_NS_LV2 "symbol");
817 LilvNode* preset = lilv_new_uri(_world.world, r.uri.c_str());
818 LilvNode* pset_value = lilv_new_uri(_world.world, NS_PSET "value");
820 LilvNodes* ports = lilv_world_find_nodes(_world.world, preset, lv2_port, NULL);
821 LILV_FOREACH(nodes, i, ports) {
822 const LilvNode* port = lilv_nodes_get(ports, i);
823 const LilvNode* symbol = get_value(_world.world, port, lv2_symbol);
824 const LilvNode* value = get_value(_world.world, port, pset_value);
825 if (value && lilv_node_is_float(value)) {
826 it = _port_indices.find(lilv_node_as_string(symbol));
827 if (it != _port_indices.end())
828 set_parameter(it->second,lilv_node_as_float(value));
831 lilv_nodes_free(ports);
833 lilv_node_free(pset_value);
834 lilv_node_free(preset);
835 lilv_node_free(lv2_symbol);
836 lilv_node_free(lv2_port);
842 LV2Plugin::do_save_preset(string /*name*/)
848 LV2Plugin::do_remove_preset(string /*name*/)
852 LV2Plugin::has_editor() const
854 return _impl->ui != NULL;
858 LV2Plugin::has_message_output() const
860 for (uint32_t i = 0; i < num_ports(); ++i) {
861 if ((_port_flags[i] & PORT_MESSAGE) && _port_flags[i] & PORT_OUTPUT) {
869 LV2Plugin::atom_eventTransfer() const
871 return _event_transfer_type;
875 LV2Plugin::write_to(RingBuffer<uint8_t>* dest,
881 const uint32_t buf_size = sizeof(UIMessage) + size;
882 uint8_t buf[buf_size];
884 UIMessage* msg = (UIMessage*)buf;
886 msg->protocol = protocol;
888 memcpy(msg + 1, body, size);
890 if (dest->write(buf, buf_size) != buf_size) {
891 error << "Error writing to UI=>Plugin RingBuffer" << endmsg;
896 LV2Plugin::write_from_ui(uint32_t index,
902 _from_ui = new RingBuffer<uint8_t>(4096);
905 write_to(_from_ui, index, protocol, size, body);
909 LV2Plugin::write_to_ui(uint32_t index,
914 std::cerr << "WRITE TO UI" << std::endl;
915 write_to(_to_ui, index, protocol, size, body);
919 LV2Plugin::enable_ui_emmission()
922 _to_ui = new RingBuffer<uint8_t>(4096);
927 LV2Plugin::emit_to_ui(void* controller, UIMessageSink sink)
933 uint32_t read_space = _to_ui->read_space();
934 while (read_space > sizeof(UIMessage)) {
936 if (_to_ui->read((uint8_t*)&msg, sizeof(msg)) != sizeof(msg)) {
937 error << "Error reading from Plugin=>UI RingBuffer" << endmsg;
940 uint8_t body[msg.size];
941 if (_to_ui->read(body, msg.size) != msg.size) {
942 error << "Error reading from Plugin=>UI RingBuffer" << endmsg;
946 sink(controller, msg.index, msg.size, msg.protocol, body);
948 read_space -= sizeof(msg) + msg.size;
953 LV2Plugin::work(uint32_t size, const void* data)
955 return _impl->work_iface->work(
956 _impl->instance->lv2_handle, work_respond, this, size, data);
960 LV2Plugin::work_response(uint32_t size, const void* data)
962 return _impl->work_iface->work_response(
963 _impl->instance->lv2_handle, size, data);
967 LV2Plugin::set_insert_info(const PluginInsert* insert)
969 _insert_id = insert->id();
973 LV2Plugin::set_state(const XMLNode& node, int version)
976 const XMLProperty* prop;
977 XMLNodeConstIterator iter;
982 LocaleGuard lg(X_("POSIX"));
984 if (node.name() != state_node_name()) {
985 error << _("Bad node sent to LV2Plugin::set_state") << endmsg;
989 if (version < 3000) {
990 nodes = node.children("port");
992 nodes = node.children("Port");
995 for (iter = nodes.begin(); iter != nodes.end(); ++iter) {
999 if ((prop = child->property("symbol")) != 0) {
1000 sym = prop->value().c_str();
1002 warning << _("LV2: port has no symbol, ignored") << endmsg;
1006 map<string, uint32_t>::iterator i = _port_indices.find(sym);
1008 if (i != _port_indices.end()) {
1009 port_id = i->second;
1011 warning << _("LV2: port has unknown index, ignored") << endmsg;
1015 if ((prop = child->property("value")) != 0) {
1016 value = prop->value().c_str();
1018 warning << _("LV2: port has no value, ignored") << endmsg;
1022 set_parameter(port_id, atof(value));
1026 if ((prop = node.property("state-dir")) != 0) {
1027 if (sscanf(prop->value().c_str(), "state%u", &_state_version) != 1) {
1028 error << string_compose(
1029 "LV2: failed to parse state version from \"%1\"",
1030 prop->value()) << endmsg;
1033 std::string state_file = Glib::build_filename(
1035 Glib::build_filename(prop->value(), "state.ttl"));
1037 cout << "Loading LV2 state from " << state_file << endl;
1038 LilvState* state = lilv_state_new_from_file(
1039 _world.world, _uri_map.urid_map(), NULL, state_file.c_str());
1041 lilv_state_restore(state, _impl->instance, NULL, NULL, 0, NULL);
1044 latency_compute_run();
1046 return Plugin::set_state(node, version);
1050 LV2Plugin::get_parameter_descriptor(uint32_t which, ParameterDescriptor& desc) const
1052 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, which);
1054 LilvNode *def, *min, *max;
1055 lilv_port_get_range(_impl->plugin, port, &def, &min, &max);
1057 desc.integer_step = lilv_port_has_property(_impl->plugin, port, _world.lv2_integer);
1058 desc.toggled = lilv_port_has_property(_impl->plugin, port, _world.lv2_toggled);
1059 desc.logarithmic = lilv_port_has_property(_impl->plugin, port, _world.ext_logarithmic);
1060 desc.sr_dependent = lilv_port_has_property(_impl->plugin, port, _world.lv2_sampleRate);
1061 desc.label = lilv_node_as_string(lilv_port_get_name(_impl->plugin, port));
1062 desc.lower = min ? lilv_node_as_float(min) : 0.0f;
1063 desc.upper = max ? lilv_node_as_float(max) : 1.0f;
1064 if (desc.sr_dependent) {
1065 desc.lower *= _session.frame_rate ();
1066 desc.upper *= _session.frame_rate ();
1069 desc.min_unbound = false; // TODO: LV2 extension required
1070 desc.max_unbound = false; // TODO: LV2 extension required
1072 if (desc.integer_step) {
1074 desc.smallstep = 0.1;
1075 desc.largestep = 10.0;
1077 const float delta = desc.upper - desc.lower;
1078 desc.step = delta / 1000.0f;
1079 desc.smallstep = delta / 10000.0f;
1080 desc.largestep = delta / 10.0f;
1083 desc.enumeration = lilv_port_has_property(_impl->plugin, port, _world.lv2_enumeration);
1085 lilv_node_free(def);
1086 lilv_node_free(min);
1087 lilv_node_free(max);
1093 LV2Plugin::describe_parameter(Evoral::Parameter which)
1095 if (( which.type() == PluginAutomation) && ( which.id() < parameter_count()) ) {
1096 LilvNode* name = lilv_port_get_name(_impl->plugin,
1097 lilv_plugin_get_port_by_index(_impl->plugin, which.id()));
1098 string ret(lilv_node_as_string(name));
1099 lilv_node_free(name);
1107 LV2Plugin::signal_latency() const
1109 if (_latency_control_port) {
1110 return (framecnt_t)floor(*_latency_control_port);
1116 set<Evoral::Parameter>
1117 LV2Plugin::automatable() const
1119 set<Evoral::Parameter> ret;
1121 for (uint32_t i = 0; i < parameter_count(); ++i) {
1122 if (parameter_is_input(i) && parameter_is_control(i)) {
1123 ret.insert(ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
1131 LV2Plugin::activate()
1133 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 activate\n", name()));
1135 if (!_was_activated) {
1136 lilv_instance_activate(_impl->instance);
1137 _was_activated = true;
1142 LV2Plugin::deactivate()
1144 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 deactivate\n", name()));
1146 if (_was_activated) {
1147 lilv_instance_deactivate(_impl->instance);
1148 _was_activated = false;
1153 LV2Plugin::cleanup()
1155 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 cleanup\n", name()));
1159 lilv_instance_free(_impl->instance);
1160 _impl->instance = NULL;
1164 LV2Plugin::connect_and_run(BufferSet& bufs,
1165 ChanMapping in_map, ChanMapping out_map,
1166 pframes_t nframes, framecnt_t offset)
1168 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 run %2 offset %3\n", name(), nframes, offset));
1169 Plugin::connect_and_run(bufs, in_map, out_map, nframes, offset);
1171 cycles_t then = get_cycles();
1173 if (_freewheel_control_port) {
1174 *_freewheel_control_port = _session.engine().freewheeling ();
1177 if (_bpm_control_port) {
1178 TempoMap& tmap (_session.tempo_map ());
1179 Tempo tempo = tmap.tempo_at (_session.transport_frame () + offset);
1180 *_bpm_control_port = tempo.beats_per_minute ();
1183 ChanCount bufs_count;
1184 bufs_count.set(DataType::AUDIO, 1);
1185 bufs_count.set(DataType::MIDI, 1);
1186 BufferSet& silent_bufs = _session.get_silent_buffers(bufs_count);
1187 BufferSet& scratch_bufs = _session.get_silent_buffers(bufs_count);
1188 uint32_t const num_ports = parameter_count();
1190 uint32_t audio_in_index = 0;
1191 uint32_t audio_out_index = 0;
1192 uint32_t midi_in_index = 0;
1193 uint32_t midi_out_index = 0;
1195 for (uint32_t port_index = 0; port_index < num_ports; ++port_index) {
1198 PortFlags flags = _port_flags[port_index];
1199 if (flags & PORT_AUDIO) {
1200 if (flags & PORT_INPUT) {
1201 index = in_map.get(DataType::AUDIO, audio_in_index++, &valid);
1203 ? bufs.get_audio(index).data(offset)
1204 : silent_bufs.get_audio(0).data(offset);
1206 index = out_map.get(DataType::AUDIO, audio_out_index++, &valid);
1208 ? bufs.get_audio(index).data(offset)
1209 : scratch_bufs.get_audio(0).data(offset);
1211 } else if (flags & (PORT_EVENT|PORT_MESSAGE)) {
1212 /* FIXME: The checks here for bufs.count().n_midi() > index shouldn't
1213 be necessary, but the mapping is illegal in some cases. Ideally
1214 that should be fixed, but this is easier...
1216 if (flags & PORT_INPUT) {
1217 index = in_map.get(DataType::MIDI, midi_in_index++, &valid);
1218 _ev_buffers[port_index] = (valid && bufs.count().n_midi() > index)
1219 ? bufs.get_lv2_midi(true, index, flags & PORT_EVENT)
1220 : silent_bufs.get_lv2_midi(true, 0, flags & PORT_EVENT);
1221 buf = lv2_evbuf_get_buffer(_ev_buffers[port_index]);
1223 index = out_map.get(DataType::MIDI, midi_out_index++, &valid);
1224 _ev_buffers[port_index] = (valid && bufs.count().n_midi() > index)
1225 ? bufs.get_lv2_midi(false, index, flags & PORT_EVENT)
1226 : scratch_bufs.get_lv2_midi(false, 0, flags & PORT_EVENT);
1227 buf = lv2_evbuf_get_buffer(_ev_buffers[port_index]);
1230 continue; // Control port, leave buffer alone
1232 lilv_instance_connect_port(_impl->instance, port_index, buf);
1235 // Read messages from UI and push into appropriate buffers
1237 uint32_t read_space = _from_ui->read_space();
1238 while (read_space > sizeof(UIMessage)) {
1240 if (_from_ui->read((uint8_t*)&msg, sizeof(msg)) != sizeof(msg)) {
1241 error << "Error reading from UI=>Plugin RingBuffer" << endmsg;
1244 uint8_t body[msg.size];
1245 if (_from_ui->read(body, msg.size) != msg.size) {
1246 error << "Error reading from UI=>Plugin RingBuffer" << endmsg;
1249 if (msg.protocol == _event_transfer_type) {
1250 LV2_Evbuf* buf = _ev_buffers[msg.index];
1251 LV2_Evbuf_Iterator i = lv2_evbuf_end(buf);
1252 const LV2_Atom* const atom = (const LV2_Atom*)body;
1253 lv2_evbuf_write(&i, nframes, 0, atom->type, atom->size,
1254 (const uint8_t*)LV2_ATOM_BODY(atom));
1256 error << "Received unknown message type from UI" << endmsg;
1258 read_space -= sizeof(UIMessage) + msg.size;
1265 for (uint32_t port_index = 0; port_index < num_ports; ++port_index) {
1266 PortFlags flags = _port_flags[port_index];
1268 // Flush MIDI (write back to Ardour MIDI buffers)
1269 if ((flags & PORT_OUTPUT) && (flags & (PORT_EVENT|PORT_MESSAGE))) {
1270 const uint32_t buf_index = out_map.get(
1271 DataType::MIDI, midi_out_index++, &valid);
1273 bufs.flush_lv2_midi(true, buf_index);
1277 // Write messages to UI
1278 if (_to_ui && (flags & PORT_OUTPUT) && (flags & PORT_MESSAGE)) {
1279 LV2_Evbuf* buf = _ev_buffers[port_index];
1280 for (LV2_Evbuf_Iterator i = lv2_evbuf_begin(buf);
1281 lv2_evbuf_is_valid(i);
1282 i = lv2_evbuf_next(i)) {
1283 uint32_t frames, subframes, type, size;
1285 lv2_evbuf_get(i, &frames, &subframes, &type, &size, &data);
1286 write_to_ui(port_index, _event_transfer_type,
1287 size + sizeof(LV2_Atom),
1288 data - sizeof(LV2_Atom));
1293 cycles_t now = get_cycles();
1294 set_cycles((uint32_t)(now - then));
1300 LV2Plugin::parameter_is_control(uint32_t param) const
1302 assert(param < _port_flags.size());
1303 return _port_flags[param] & PORT_CONTROL;
1307 LV2Plugin::parameter_is_audio(uint32_t param) const
1309 assert(param < _port_flags.size());
1310 return _port_flags[param] & PORT_AUDIO;
1314 LV2Plugin::parameter_is_event(uint32_t param) const
1316 assert(param < _port_flags.size());
1317 return _port_flags[param] & PORT_EVENT;
1321 LV2Plugin::parameter_is_output(uint32_t param) const
1323 assert(param < _port_flags.size());
1324 return _port_flags[param] & PORT_OUTPUT;
1328 LV2Plugin::parameter_is_input(uint32_t param) const
1330 assert(param < _port_flags.size());
1331 return _port_flags[param] & PORT_INPUT;
1335 LV2Plugin::print_parameter(uint32_t param, char* buf, uint32_t len) const
1338 if (param < parameter_count()) {
1339 snprintf(buf, len, "%.3f", get_parameter(param));
1346 boost::shared_ptr<Plugin::ScalePoints>
1347 LV2Plugin::get_scale_points(uint32_t port_index) const
1349 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, port_index);
1350 LilvScalePoints* points = lilv_port_get_scale_points(_impl->plugin, port);
1352 boost::shared_ptr<Plugin::ScalePoints> ret;
1357 ret = boost::shared_ptr<Plugin::ScalePoints>(new ScalePoints());
1359 LILV_FOREACH(scale_points, i, points) {
1360 const LilvScalePoint* p = lilv_scale_points_get(points, i);
1361 const LilvNode* label = lilv_scale_point_get_label(p);
1362 const LilvNode* value = lilv_scale_point_get_value(p);
1363 if (label && (lilv_node_is_float(value) || lilv_node_is_int(value))) {
1364 ret->insert(make_pair(lilv_node_as_string(label),
1365 lilv_node_as_float(value)));
1369 lilv_scale_points_free(points);
1374 LV2Plugin::run(pframes_t nframes)
1376 uint32_t const N = parameter_count();
1377 for (uint32_t i = 0; i < N; ++i) {
1378 if (parameter_is_control(i) && parameter_is_input(i)) {
1379 _control_data[i] = _shadow_data[i];
1383 lilv_instance_run(_impl->instance, nframes);
1385 if (_impl->work_iface) {
1386 _worker->emit_responses();
1387 if (_impl->work_iface->end_run) {
1388 _impl->work_iface->end_run(_impl->instance->lv2_handle);
1394 LV2Plugin::latency_compute_run()
1396 if (!_latency_control_port) {
1400 // Run the plugin so that it can set its latency parameter
1404 uint32_t port_index = 0;
1405 uint32_t in_index = 0;
1406 uint32_t out_index = 0;
1408 const framecnt_t bufsize = 1024;
1409 float buffer[bufsize];
1411 memset(buffer, 0, sizeof(float) * bufsize);
1413 // FIXME: Ensure plugins can handle in-place processing
1417 while (port_index < parameter_count()) {
1418 if (parameter_is_audio(port_index)) {
1419 if (parameter_is_input(port_index)) {
1420 lilv_instance_connect_port(_impl->instance, port_index, buffer);
1422 } else if (parameter_is_output(port_index)) {
1423 lilv_instance_connect_port(_impl->instance, port_index, buffer);
1435 LV2Plugin::Impl::designated_input (const char* uri, void** bufptrs[], void** bufptr)
1437 LilvPort* port = NULL;
1438 LilvNode* designation = lilv_new_uri(_world.world, uri);
1439 port = lilv_plugin_get_port_by_designation(
1440 plugin, _world.lv2_InputPort, designation);
1441 lilv_node_free(designation);
1443 bufptrs[lilv_port_get_index(plugin, port)] = bufptr;
1448 LV2World::LV2World()
1449 : world(lilv_world_new())
1451 lilv_world_load_all(world);
1452 atom_AtomPort = lilv_new_uri(world, LV2_ATOM__AtomPort);
1453 atom_Chunk = lilv_new_uri(world, LV2_ATOM__Chunk);
1454 atom_Sequence = lilv_new_uri(world, LV2_ATOM__Sequence);
1455 atom_bufferType = lilv_new_uri(world, LV2_ATOM__bufferType);
1456 atom_eventTransfer = lilv_new_uri(world, LV2_ATOM__eventTransfer);
1457 ev_EventPort = lilv_new_uri(world, LILV_URI_EVENT_PORT);
1458 ext_logarithmic = lilv_new_uri(world, "http://lv2plug.in/ns/dev/extportinfo#logarithmic");
1459 lv2_AudioPort = lilv_new_uri(world, LILV_URI_AUDIO_PORT);
1460 lv2_ControlPort = lilv_new_uri(world, LILV_URI_CONTROL_PORT);
1461 lv2_InputPort = lilv_new_uri(world, LILV_URI_INPUT_PORT);
1462 lv2_OutputPort = lilv_new_uri(world, LILV_URI_OUTPUT_PORT);
1463 lv2_inPlaceBroken = lilv_new_uri(world, LILV_NS_LV2 "inPlaceBroken");
1464 lv2_integer = lilv_new_uri(world, LILV_NS_LV2 "integer");
1465 lv2_sampleRate = lilv_new_uri(world, LILV_NS_LV2 "sampleRate");
1466 lv2_toggled = lilv_new_uri(world, LILV_NS_LV2 "toggled");
1467 lv2_enumeration = lilv_new_uri(world, LILV_NS_LV2 "enumeration");
1468 midi_MidiEvent = lilv_new_uri(world, LILV_URI_MIDI_EVENT);
1469 ui_GtkUI = lilv_new_uri(world, NS_UI "GtkUI");
1470 ui_external = lilv_new_uri(world, NS_UI "external");
1473 LV2World::~LV2World()
1475 lilv_node_free(ui_external);
1476 lilv_node_free(ui_GtkUI);
1477 lilv_node_free(midi_MidiEvent);
1478 lilv_node_free(lv2_toggled);
1479 lilv_node_free(lv2_sampleRate);
1480 lilv_node_free(lv2_integer);
1481 lilv_node_free(lv2_inPlaceBroken);
1482 lilv_node_free(lv2_OutputPort);
1483 lilv_node_free(lv2_InputPort);
1484 lilv_node_free(lv2_ControlPort);
1485 lilv_node_free(lv2_AudioPort);
1486 lilv_node_free(ext_logarithmic);
1487 lilv_node_free(ev_EventPort);
1488 lilv_node_free(atom_eventTransfer);
1489 lilv_node_free(atom_bufferType);
1490 lilv_node_free(atom_Sequence);
1491 lilv_node_free(atom_Chunk);
1492 lilv_node_free(atom_AtomPort);
1495 LV2PluginInfo::LV2PluginInfo (void* c_plugin)
1496 : _c_plugin(c_plugin)
1501 LV2PluginInfo::~LV2PluginInfo()
1505 LV2PluginInfo::load(Session& session)
1510 plugin.reset(new LV2Plugin(session.engine(), session,
1511 (LilvPlugin*)_c_plugin,
1512 session.frame_rate()));
1514 plugin->set_info(PluginInfoPtr(new LV2PluginInfo(*this)));
1516 } catch (failed_constructor& err) {
1517 return PluginPtr((Plugin*)0);
1524 LV2PluginInfo::discover()
1526 PluginInfoList* plugs = new PluginInfoList;
1527 const LilvPlugins* plugins = lilv_world_get_all_plugins(_world.world);
1529 cerr << "LV2: Discovering " << lilv_plugins_size(plugins) << " plugins" << endl;
1531 LILV_FOREACH(plugins, i, plugins) {
1532 const LilvPlugin* p = lilv_plugins_get(plugins, i);
1533 LV2PluginInfoPtr info(new LV2PluginInfo((void*)p));
1535 LilvNode* name = lilv_plugin_get_name(p);
1537 cerr << "LV2: invalid plugin\n";
1543 info->name = string(lilv_node_as_string(name));
1544 lilv_node_free(name);
1546 const LilvPluginClass* pclass = lilv_plugin_get_class(p);
1547 const LilvNode* label = lilv_plugin_class_get_label(pclass);
1548 info->category = lilv_node_as_string(label);
1550 LilvNode* author_name = lilv_plugin_get_author_name(p);
1551 info->creator = author_name ? string(lilv_node_as_string(author_name)) : "Unknown";
1552 lilv_node_free(author_name);
1554 info->path = "/NOPATH"; // Meaningless for LV2
1556 info->n_inputs.set_audio(
1557 lilv_plugin_get_num_ports_of_class(
1558 p, _world.lv2_InputPort, _world.lv2_AudioPort, NULL));
1559 info->n_inputs.set_midi(
1560 lilv_plugin_get_num_ports_of_class(
1561 p, _world.lv2_InputPort, _world.ev_EventPort, NULL)
1562 + lilv_plugin_get_num_ports_of_class(
1563 p, _world.lv2_InputPort, _world.atom_AtomPort, NULL));
1565 info->n_outputs.set_audio(
1566 lilv_plugin_get_num_ports_of_class(
1567 p, _world.lv2_OutputPort, _world.lv2_AudioPort, NULL));
1568 info->n_outputs.set_midi(
1569 lilv_plugin_get_num_ports_of_class(
1570 p, _world.lv2_OutputPort, _world.ev_EventPort, NULL)
1571 + lilv_plugin_get_num_ports_of_class(
1572 p, _world.lv2_OutputPort, _world.atom_AtomPort, NULL));
1574 info->unique_id = lilv_node_as_uri(lilv_plugin_get_uri(p));
1575 info->index = 0; // Meaningless for LV2
1577 plugs->push_back(info);
1580 cerr << "Done LV2 discovery" << endl;