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 <glib/gstdio.h>
29 #include <giomm/file.h>
30 #include <glib/gprintf.h>
33 #include <boost/utility.hpp>
35 #include "pbd/pathscanner.h"
36 #include "pbd/compose.h"
37 #include "pbd/error.h"
38 #include "pbd/xml++.h"
40 #include "libardour-config.h"
42 #include "ardour/audio_buffer.h"
43 #include "ardour/audioengine.h"
44 #include "ardour/debug.h"
45 #include "ardour/lv2_plugin.h"
46 #include "ardour/session.h"
47 #include "ardour/tempo.h"
48 #include "ardour/types.h"
49 #include "ardour/utils.h"
50 #include "ardour/worker.h"
51 #include "ardour/lv2_bundled_search_path.h"
56 #include <lilv/lilv.h>
58 #include "lv2/lv2plug.in/ns/ext/atom/atom.h"
59 #include "lv2/lv2plug.in/ns/ext/atom/forge.h"
60 #include "lv2/lv2plug.in/ns/ext/log/log.h"
61 #include "lv2/lv2plug.in/ns/ext/midi/midi.h"
62 #include "lv2/lv2plug.in/ns/ext/port-props/port-props.h"
63 #include "lv2/lv2plug.in/ns/ext/presets/presets.h"
64 #include "lv2/lv2plug.in/ns/ext/state/state.h"
65 #include "lv2/lv2plug.in/ns/ext/time/time.h"
66 #include "lv2/lv2plug.in/ns/ext/worker/worker.h"
67 #include "lv2/lv2plug.in/ns/ext/resize-port/resize-port.h"
68 #include "lv2/lv2plug.in/ns/extensions/ui/ui.h"
70 #include "lv2/lv2plug.in/ns/ext/buf-size/buf-size.h"
71 #include "lv2/lv2plug.in/ns/ext/options/options.h"
74 #include "lv2_evbuf.h"
77 #include <suil/suil.h>
80 /** The number of MIDI buffers that will fit in a UI/worker comm buffer.
81 This needs to be roughly the number of cycles the UI will get around to
82 actually processing the traffic. Lower values are flakier but save memory.
84 static const size_t NBUFS = 4;
87 using namespace ARDOUR;
90 URIMap LV2Plugin::_uri_map;
92 LV2Plugin::URIDs LV2Plugin::urids = {
93 _uri_map.uri_to_id(LV2_ATOM__Chunk),
94 _uri_map.uri_to_id(LV2_ATOM__Path),
95 _uri_map.uri_to_id(LV2_ATOM__Sequence),
96 _uri_map.uri_to_id(LV2_ATOM__eventTransfer),
97 _uri_map.uri_to_id(LV2_LOG__Error),
98 _uri_map.uri_to_id(LV2_LOG__Note),
99 _uri_map.uri_to_id(LV2_LOG__Warning),
100 _uri_map.uri_to_id(LV2_MIDI__MidiEvent),
101 _uri_map.uri_to_id(LV2_TIME__Position),
102 _uri_map.uri_to_id(LV2_TIME__bar),
103 _uri_map.uri_to_id(LV2_TIME__barBeat),
104 _uri_map.uri_to_id(LV2_TIME__beatUnit),
105 _uri_map.uri_to_id(LV2_TIME__beatsPerBar),
106 _uri_map.uri_to_id(LV2_TIME__beatsPerMinute),
107 _uri_map.uri_to_id(LV2_TIME__frame),
108 _uri_map.uri_to_id(LV2_TIME__speed)
111 class LV2World : boost::noncopyable {
116 void load_bundled_plugins();
120 LilvNode* atom_AtomPort;
121 LilvNode* atom_Chunk;
122 LilvNode* atom_Sequence;
123 LilvNode* atom_bufferType;
124 LilvNode* atom_eventTransfer;
125 LilvNode* atom_supports;
126 LilvNode* ev_EventPort;
127 LilvNode* ext_logarithmic;
128 LilvNode* ext_notOnGUI;
129 LilvNode* lv2_AudioPort;
130 LilvNode* lv2_ControlPort;
131 LilvNode* lv2_InputPort;
132 LilvNode* lv2_OutputPort;
133 LilvNode* lv2_enumeration;
134 LilvNode* lv2_freewheeling;
135 LilvNode* lv2_inPlaceBroken;
136 LilvNode* lv2_integer;
137 LilvNode* lv2_reportsLatency;
138 LilvNode* lv2_sampleRate;
139 LilvNode* lv2_toggled;
140 LilvNode* midi_MidiEvent;
141 LilvNode* rdfs_comment;
142 LilvNode* rsz_minimumSize;
143 LilvNode* time_Position;
145 LilvNode* ui_external;
146 LilvNode* ui_externalkx;
147 LilvNode* units_unit;
148 LilvNode* units_midiNote;
151 bool _bundle_checked;
154 static LV2World _world;
156 /* worker extension */
158 /** Called by the plugin to schedule non-RT work. */
159 static LV2_Worker_Status
160 work_schedule(LV2_Worker_Schedule_Handle handle,
164 LV2Plugin* plugin = (LV2Plugin*)handle;
165 if (plugin->session().engine().freewheeling()) {
166 // Freewheeling, do the work immediately in this (audio) thread
167 return (LV2_Worker_Status)plugin->work(size, data);
169 // Enqueue message for the worker thread
170 return plugin->worker()->schedule(size, data) ?
171 LV2_WORKER_SUCCESS : LV2_WORKER_ERR_UNKNOWN;
175 /** Called by the plugin to respond to non-RT work. */
176 static LV2_Worker_Status
177 work_respond(LV2_Worker_Respond_Handle handle,
181 LV2Plugin* plugin = (LV2Plugin*)handle;
182 if (plugin->session().engine().freewheeling()) {
183 // Freewheeling, respond immediately in this (audio) thread
184 return (LV2_Worker_Status)plugin->work_response(size, data);
186 // Enqueue response for the worker
187 return plugin->worker()->respond(size, data) ?
188 LV2_WORKER_SUCCESS : LV2_WORKER_ERR_UNKNOWN;
195 log_vprintf(LV2_Log_Handle /*handle*/,
201 const int ret = g_vasprintf(&str, fmt, args);
202 if (type == LV2Plugin::urids.log_Error) {
203 error << str << endmsg;
204 } else if (type == LV2Plugin::urids.log_Warning) {
205 warning << str << endmsg;
206 } else if (type == LV2Plugin::urids.log_Note) {
207 info << str << endmsg;
209 // TODO: Toggleable log:Trace message support
214 log_printf(LV2_Log_Handle handle,
216 const char* fmt, ...)
220 const int ret = log_vprintf(handle, type, fmt, args);
225 struct LV2Plugin::Impl {
226 Impl() : plugin(0), ui(0), ui_type(0), name(0), author(0), instance(0)
231 /** Find the LV2 input port with the given designation.
232 * If found, bufptrs[port_index] will be set to bufptr.
234 const LilvPort* designated_input (const char* uri, void** bufptrs[], void** bufptr);
236 const LilvPlugin* plugin;
238 const LilvNode* ui_type;
241 LilvInstance* instance;
242 const LV2_Worker_Interface* work_iface;
244 LV2_Atom_Forge forge;
247 LV2Plugin::LV2Plugin (AudioEngine& engine,
249 const void* c_plugin,
251 : Plugin (engine, session)
258 init(c_plugin, rate);
261 LV2Plugin::LV2Plugin (const LV2Plugin& other)
267 , _insert_id(other._insert_id)
269 init(other._impl->plugin, other._sample_rate);
271 for (uint32_t i = 0; i < parameter_count(); ++i) {
272 _control_data[i] = other._shadow_data[i];
273 _shadow_data[i] = other._shadow_data[i];
278 LV2Plugin::init(const void* c_plugin, framecnt_t rate)
280 DEBUG_TRACE(DEBUG::LV2, "init\n");
282 _impl->plugin = (const LilvPlugin*)c_plugin;
284 _impl->ui_type = NULL;
289 _atom_ev_buffers = 0;
291 _bpm_control_port = 0;
292 _freewheel_control_port = 0;
293 _latency_control_port = 0;
294 _next_cycle_start = std::numeric_limits<framepos_t>::max();
295 _next_cycle_speed = 1.0;
296 _block_length = _engine.samples_per_cycle();
297 _seq_size = _engine.raw_buffer_size(DataType::MIDI);
299 _was_activated = false;
300 _has_state_interface = false;
302 _instance_access_feature.URI = "http://lv2plug.in/ns/ext/instance-access";
303 _data_access_feature.URI = "http://lv2plug.in/ns/ext/data-access";
304 _make_path_feature.URI = LV2_STATE__makePath;
305 _log_feature.URI = LV2_LOG__log;
306 _work_schedule_feature.URI = LV2_WORKER__schedule;
307 _work_schedule_feature.data = NULL;
308 _def_state_feature.URI = LV2_STATE_PREFIX "loadDefaultState"; // Post LV2-1.2.0
309 _def_state_feature.data = NULL;
311 const LilvPlugin* plugin = _impl->plugin;
313 LilvNode* state_iface_uri = lilv_new_uri(_world.world, LV2_STATE__interface);
314 LilvNode* state_uri = lilv_new_uri(_world.world, LV2_STATE_URI);
315 _has_state_interface =
316 // What plugins should have (lv2:extensionData state:Interface)
317 lilv_plugin_has_extension_data(plugin, state_iface_uri)
318 // What some outdated/incorrect ones have
319 || lilv_plugin_has_feature(plugin, state_uri);
320 lilv_node_free(state_uri);
321 lilv_node_free(state_iface_uri);
323 _features = (LV2_Feature**)calloc(11, sizeof(LV2_Feature*));
324 _features[0] = &_instance_access_feature;
325 _features[1] = &_data_access_feature;
326 _features[2] = &_make_path_feature;
327 _features[3] = _uri_map.uri_map_feature();
328 _features[4] = _uri_map.urid_map_feature();
329 _features[5] = _uri_map.urid_unmap_feature();
330 _features[6] = &_log_feature;
332 unsigned n_features = 7;
334 _features[n_features++] = &_def_state_feature;
337 lv2_atom_forge_init(&_impl->forge, _uri_map.urid_map());
340 LV2_URID atom_Int = _uri_map.uri_to_id(LV2_ATOM__Int);
341 LV2_Options_Option options[] = {
342 { LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id(LV2_BUF_SIZE__minBlockLength),
343 sizeof(int32_t), atom_Int, &_block_length },
344 { LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id(LV2_BUF_SIZE__maxBlockLength),
345 sizeof(int32_t), atom_Int, &_block_length },
346 { LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id(LV2_BUF_SIZE__sequenceSize),
347 sizeof(int32_t), atom_Int, &_seq_size },
348 { LV2_OPTIONS_INSTANCE, 0, 0, 0, 0, NULL }
351 _options_feature.URI = LV2_OPTIONS__options;
352 _options_feature.data = options;
353 _features[n_features++] = &_options_feature;
356 LV2_State_Make_Path* make_path = (LV2_State_Make_Path*)malloc(
357 sizeof(LV2_State_Make_Path));
358 make_path->handle = this;
359 make_path->path = &lv2_state_make_path;
360 _make_path_feature.data = make_path;
362 LV2_Log_Log* log = (LV2_Log_Log*)malloc(sizeof(LV2_Log_Log));
364 log->printf = &log_printf;
365 log->vprintf = &log_vprintf;
366 _log_feature.data = log;
368 LilvNode* worker_schedule = lilv_new_uri(_world.world, LV2_WORKER__schedule);
369 if (lilv_plugin_has_feature(plugin, worker_schedule)) {
370 LV2_Worker_Schedule* schedule = (LV2_Worker_Schedule*)malloc(
371 sizeof(LV2_Worker_Schedule));
372 size_t buf_size = _session.engine().raw_buffer_size(DataType::MIDI) * NBUFS;
373 _worker = new Worker(this, buf_size);
374 schedule->handle = this;
375 schedule->schedule_work = work_schedule;
376 _work_schedule_feature.data = schedule;
377 _features[n_features++] = &_work_schedule_feature;
379 lilv_node_free(worker_schedule);
381 _impl->instance = lilv_plugin_instantiate(plugin, rate, _features);
382 _impl->name = lilv_plugin_get_name(plugin);
383 _impl->author = lilv_plugin_get_author_name(plugin);
385 if (_impl->instance == 0) {
386 error << _("LV2: Failed to instantiate plugin ") << uri() << endmsg;
387 throw failed_constructor();
390 _instance_access_feature.data = (void*)_impl->instance->lv2_handle;
391 _data_access_extension_data.extension_data = _impl->instance->lv2_descriptor->extension_data;
392 _data_access_feature.data = &_data_access_extension_data;
394 LilvNode* worker_iface_uri = lilv_new_uri(_world.world, LV2_WORKER__interface);
395 if (lilv_plugin_has_extension_data(plugin, worker_iface_uri)) {
396 _impl->work_iface = (const LV2_Worker_Interface*)extension_data(
397 LV2_WORKER__interface);
399 lilv_node_free(worker_iface_uri);
401 if (lilv_plugin_has_feature(plugin, _world.lv2_inPlaceBroken)) {
402 error << string_compose(
403 _("LV2: \"%1\" cannot be used, since it cannot do inplace processing"),
404 lilv_node_as_string(_impl->name)) << endmsg;
405 lilv_node_free(_impl->name);
406 lilv_node_free(_impl->author);
407 throw failed_constructor();
411 // Load default state
412 LilvState* state = lilv_state_new_from_world(
413 _world.world, _uri_map.urid_map(), lilv_plugin_get_uri(_impl->plugin));
414 if (state && _has_state_interface) {
415 lilv_state_restore(state, _impl->instance, NULL, NULL, 0, NULL);
421 const uint32_t num_ports = this->num_ports();
422 for (uint32_t i = 0; i < num_ports; ++i) {
423 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, i);
425 size_t minimumSize = 0;
427 if (lilv_port_is_a(_impl->plugin, port, _world.lv2_OutputPort)) {
428 flags |= PORT_OUTPUT;
429 } else if (lilv_port_is_a(_impl->plugin, port, _world.lv2_InputPort)) {
432 error << string_compose(
433 "LV2: \"%1\" port %2 is neither input nor output",
434 lilv_node_as_string(_impl->name), i) << endmsg;
435 throw failed_constructor();
438 if (lilv_port_is_a(_impl->plugin, port, _world.lv2_ControlPort)) {
439 flags |= PORT_CONTROL;
440 } else if (lilv_port_is_a(_impl->plugin, port, _world.lv2_AudioPort)) {
442 } else if (lilv_port_is_a(_impl->plugin, port, _world.ev_EventPort)) {
444 flags |= PORT_MIDI; // We assume old event API ports are for MIDI
445 } else if (lilv_port_is_a(_impl->plugin, port, _world.atom_AtomPort)) {
446 LilvNodes* buffer_types = lilv_port_get_value(
447 _impl->plugin, port, _world.atom_bufferType);
448 LilvNodes* atom_supports = lilv_port_get_value(
449 _impl->plugin, port, _world.atom_supports);
451 if (lilv_nodes_contains(buffer_types, _world.atom_Sequence)) {
452 flags |= PORT_SEQUENCE;
453 if (lilv_nodes_contains(atom_supports, _world.midi_MidiEvent)) {
456 if (lilv_nodes_contains(atom_supports, _world.time_Position)) {
457 flags |= PORT_POSITION;
460 LilvNodes* min_size_v = lilv_port_get_value(_impl->plugin, port, _world.rsz_minimumSize);
461 LilvNode* min_size = min_size_v ? lilv_nodes_get_first(min_size_v) : NULL;
462 if (min_size && lilv_node_is_int(min_size)) {
463 minimumSize = lilv_node_as_int(min_size);
465 lilv_nodes_free(min_size_v);
466 lilv_nodes_free(buffer_types);
467 lilv_nodes_free(atom_supports);
469 error << string_compose(
470 "LV2: \"%1\" port %2 has no known data type",
471 lilv_node_as_string(_impl->name), i) << endmsg;
472 throw failed_constructor();
475 _port_flags.push_back(flags);
476 _port_minimumSize.push_back(minimumSize);
479 _control_data = new float[num_ports];
480 _shadow_data = new float[num_ports];
481 _defaults = new float[num_ports];
482 _ev_buffers = new LV2_Evbuf*[num_ports];
483 memset(_ev_buffers, 0, sizeof(LV2_Evbuf*) * num_ports);
485 const bool latent = lilv_plugin_has_latency(plugin);
486 const uint32_t latency_index = (latent)
487 ? lilv_plugin_get_latency_port_index(plugin)
490 // Build an array of pointers to special parameter buffers
491 void*** params = new void**[num_ports];
492 for (uint32_t i = 0; i < num_ports; ++i) {
495 _impl->designated_input (LV2_TIME__beatsPerMinute, params, (void**)&_bpm_control_port);
496 _impl->designated_input (LV2_CORE__freeWheeling, params, (void**)&_freewheel_control_port);
498 for (uint32_t i = 0; i < num_ports; ++i) {
499 const LilvPort* port = lilv_plugin_get_port_by_index(plugin, i);
500 const LilvNode* sym = lilv_port_get_symbol(plugin, port);
502 // Store index in map so we can look up index by symbol
503 _port_indices.insert(std::make_pair(lilv_node_as_string(sym), i));
505 // Get range and default value if applicable
506 if (parameter_is_control(i)) {
508 lilv_port_get_range(plugin, port, &def, NULL, NULL);
509 _defaults[i] = def ? lilv_node_as_float(def) : 0.0f;
510 if (lilv_port_has_property (plugin, port, _world.lv2_sampleRate)) {
511 _defaults[i] *= _session.frame_rate ();
515 lilv_instance_connect_port(_impl->instance, i, &_control_data[i]);
517 if (latent && i == latency_index) {
518 _latency_control_port = &_control_data[i];
519 *_latency_control_port = 0;
522 if (parameter_is_input(i)) {
523 _shadow_data[i] = default_value(i);
525 *params[i] = (void*)&_shadow_data[i];
535 LilvUIs* uis = lilv_plugin_get_uis(plugin);
536 if (lilv_uis_size(uis) > 0) {
538 // Look for embeddable UI
539 LILV_FOREACH(uis, u, uis) {
540 const LilvUI* this_ui = lilv_uis_get(uis, u);
541 const LilvNode* this_ui_type = NULL;
542 if (lilv_ui_is_supported(this_ui,
546 // TODO: Multiple UI support
548 _impl->ui_type = this_ui_type;
553 // Look for Gtk native UI
554 LILV_FOREACH(uis, i, uis) {
555 const LilvUI* ui = lilv_uis_get(uis, i);
556 if (lilv_ui_is_a(ui, _world.ui_GtkUI)) {
558 _impl->ui_type = _world.ui_GtkUI;
564 // If Gtk UI is not available, try to find external UI
566 LILV_FOREACH(uis, i, uis) {
567 const LilvUI* ui = lilv_uis_get(uis, i);
568 if (lilv_ui_is_a(ui, _world.ui_externalkx)) {
570 _impl->ui_type = _world.ui_external;
573 if (lilv_ui_is_a(ui, _world.ui_external)) {
575 _impl->ui_type = _world.ui_external;
581 allocate_atom_event_buffers();
582 latency_compute_run();
585 LV2Plugin::~LV2Plugin ()
587 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 destroy\n", name()));
592 lilv_instance_free(_impl->instance);
593 lilv_node_free(_impl->name);
594 lilv_node_free(_impl->author);
597 free(_make_path_feature.data);
598 free(_work_schedule_feature.data);
604 if (_atom_ev_buffers) {
605 LV2_Evbuf** b = _atom_ev_buffers;
610 free(_atom_ev_buffers);
613 delete [] _control_data;
614 delete [] _shadow_data;
615 delete [] _ev_buffers;
619 LV2Plugin::is_external_ui() const
624 return lilv_ui_is_a(_impl->ui, _world.ui_external) || lilv_ui_is_a(_impl->ui, _world.ui_externalkx);
628 LV2Plugin::is_external_kx() const
633 return lilv_ui_is_a(_impl->ui, _world.ui_externalkx);
637 LV2Plugin::ui_is_resizable () const
639 const LilvNode* s = lilv_ui_get_uri(_impl->ui);
640 LilvNode* p = lilv_new_uri(_world.world, LV2_CORE__optionalFeature);
641 LilvNode* fs = lilv_new_uri(_world.world, LV2_UI__fixedSize);
642 LilvNode* nrs = lilv_new_uri(_world.world, LV2_UI__noUserResize);
644 LilvNodes* fs_matches = lilv_world_find_nodes(_world.world, s, p, fs);
645 LilvNodes* nrs_matches = lilv_world_find_nodes(_world.world, s, p, nrs);
647 lilv_nodes_free(nrs_matches);
648 lilv_nodes_free(fs_matches);
653 return !fs_matches && !nrs_matches;
657 LV2Plugin::unique_id() const
659 return lilv_node_as_uri(lilv_plugin_get_uri(_impl->plugin));
663 LV2Plugin::uri() const
665 return lilv_node_as_uri(lilv_plugin_get_uri(_impl->plugin));
669 LV2Plugin::label() const
671 return lilv_node_as_string(_impl->name);
675 LV2Plugin::name() const
677 return lilv_node_as_string(_impl->name);
681 LV2Plugin::maker() const
683 return _impl->author ? lilv_node_as_string (_impl->author) : "Unknown";
687 LV2Plugin::num_ports() const
689 return lilv_plugin_get_num_ports(_impl->plugin);
693 LV2Plugin::parameter_count() const
695 return lilv_plugin_get_num_ports(_impl->plugin);
699 LV2Plugin::default_value(uint32_t port)
701 return _defaults[port];
705 LV2Plugin::port_symbol(uint32_t index) const
707 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, index);
709 error << name() << ": Invalid port index " << index << endmsg;
712 const LilvNode* sym = lilv_port_get_symbol(_impl->plugin, port);
713 return lilv_node_as_string(sym);
717 LV2Plugin::port_index (const char* symbol) const
719 const map<string, uint32_t>::const_iterator i = _port_indices.find(symbol);
720 if (i != _port_indices.end()) {
723 warning << string_compose(_("LV2: Unknown port %1"), symbol) << endmsg;
729 LV2Plugin::set_parameter(uint32_t which, float val)
731 DEBUG_TRACE(DEBUG::LV2, string_compose(
732 "%1 set parameter %2 to %3\n", name(), which, val));
734 if (which < lilv_plugin_get_num_ports(_impl->plugin)) {
735 if (get_parameter (which) == val) {
739 _shadow_data[which] = val;
741 warning << string_compose(
742 _("Illegal parameter number used with plugin \"%1\". "
743 "This is a bug in either %2 or the LV2 plugin <%3>"),
744 name(), PROGRAM_NAME, unique_id()) << endmsg;
747 Plugin::set_parameter(which, val);
751 LV2Plugin::get_parameter(uint32_t which) const
753 if (parameter_is_input(which)) {
754 return (float)_shadow_data[which];
756 return (float)_control_data[which];
762 LV2Plugin::get_docs() const
764 LilvNodes* comments = lilv_plugin_get_value(_impl->plugin, _world.rdfs_comment);
766 const std::string docs(lilv_node_as_string(lilv_nodes_get_first(comments)));
767 lilv_nodes_free(comments);
775 LV2Plugin::get_parameter_docs(uint32_t which) const
777 LilvNodes* comments = lilv_port_get_value(
779 lilv_plugin_get_port_by_index(_impl->plugin, which),
780 _world.rdfs_comment);
783 const std::string docs(lilv_node_as_string(lilv_nodes_get_first(comments)));
784 lilv_nodes_free(comments);
792 LV2Plugin::nth_parameter(uint32_t n, bool& ok) const
795 for (uint32_t c = 0, x = 0; x < lilv_plugin_get_num_ports(_impl->plugin); ++x) {
796 if (parameter_is_control(x)) {
808 LV2Plugin::extension_data(const char* uri) const
810 return lilv_instance_get_extension_data(_impl->instance, uri);
814 LV2Plugin::c_plugin()
816 return _impl->plugin;
822 return (const void*)_impl->ui;
826 LV2Plugin::c_ui_type()
828 return (const void*)_impl->ui_type;
831 /** Directory for all plugin state. */
833 LV2Plugin::plugin_dir() const
835 return Glib::build_filename(_session.plugins_dir(), _insert_id.to_s());
838 /** Directory for files created by the plugin (except during save). */
840 LV2Plugin::scratch_dir() const
842 return Glib::build_filename(plugin_dir(), "scratch");
845 /** Directory for snapshots of files in the scratch directory. */
847 LV2Plugin::file_dir() const
849 return Glib::build_filename(plugin_dir(), "files");
852 /** Directory to save state snapshot version @c num into. */
854 LV2Plugin::state_dir(unsigned num) const
856 return Glib::build_filename(plugin_dir(), string_compose("state%1", num));
859 /** Implementation of state:makePath for files created at instantiation time.
860 * Note this is not used for files created at save time (Lilv deals with that).
863 LV2Plugin::lv2_state_make_path(LV2_State_Make_Path_Handle handle,
866 LV2Plugin* me = (LV2Plugin*)handle;
867 if (me->_insert_id == PBD::ID("0")) {
868 warning << string_compose(
869 "File path \"%1\" requested but LV2 %2 has no insert ID",
870 path, me->name()) << endmsg;
871 return g_strdup(path);
874 const std::string abs_path = Glib::build_filename(me->scratch_dir(), path);
875 const std::string dirname = Glib::path_get_dirname(abs_path);
876 g_mkdir_with_parents(dirname.c_str(), 0744);
878 DEBUG_TRACE(DEBUG::LV2, string_compose("new file path %1 => %2\n",
881 return g_strndup(abs_path.c_str(), abs_path.length());
885 remove_directory(const std::string& path)
887 if (!Glib::file_test(path, Glib::FILE_TEST_IS_DIR)) {
888 warning << string_compose("\"%1\" is not a directory", path) << endmsg;
892 Glib::RefPtr<Gio::File> dir = Gio::File::create_for_path(path);
893 Glib::RefPtr<Gio::FileEnumerator> e = dir->enumerate_children();
894 Glib::RefPtr<Gio::FileInfo> fi;
895 while ((fi = e->next_file())) {
896 if (fi->get_type() == Gio::FILE_TYPE_DIRECTORY) {
897 remove_directory(fi->get_name());
899 dir->get_child(fi->get_name())->remove();
906 LV2Plugin::add_state(XMLNode* root) const
908 assert(_insert_id != PBD::ID("0"));
912 LocaleGuard lg(X_("POSIX"));
914 for (uint32_t i = 0; i < parameter_count(); ++i) {
915 if (parameter_is_input(i) && parameter_is_control(i)) {
916 child = new XMLNode("Port");
917 child->add_property("symbol", port_symbol(i));
918 snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]);
919 child->add_property("value", string(buf));
920 root->add_child_nocopy(*child);
924 if (_has_state_interface) {
925 // Provisionally increment state version and create directory
926 const std::string new_dir = state_dir(++_state_version);
927 g_mkdir_with_parents(new_dir.c_str(), 0744);
929 LilvState* state = lilv_state_new_from_instance(
933 scratch_dir().c_str(),
935 _session.externals_dir().c_str(),
938 const_cast<LV2Plugin*>(this),
942 if (!_impl->state || !lilv_state_equals(state, _impl->state)) {
943 lilv_state_save(_world.world,
945 _uri_map.urid_unmap(),
951 lilv_state_free(_impl->state);
952 _impl->state = state;
954 // State is identical, decrement version and nuke directory
955 lilv_state_free(state);
956 remove_directory(new_dir);
960 root->add_property("state-dir", string_compose("state%1", _state_version));
964 static inline const LilvNode*
965 get_value(LilvWorld* world, const LilvNode* subject, const LilvNode* predicate)
967 LilvNodes* vs = lilv_world_find_nodes(world, subject, predicate, NULL);
968 return vs ? lilv_nodes_get_first(vs) : NULL;
972 LV2Plugin::find_presets()
974 LilvNode* lv2_appliesTo = lilv_new_uri(_world.world, LV2_CORE__appliesTo);
975 LilvNode* pset_Preset = lilv_new_uri(_world.world, LV2_PRESETS__Preset);
976 LilvNode* rdfs_label = lilv_new_uri(_world.world, LILV_NS_RDFS "label");
978 LilvNodes* presets = lilv_plugin_get_related(_impl->plugin, pset_Preset);
979 LILV_FOREACH(nodes, i, presets) {
980 const LilvNode* preset = lilv_nodes_get(presets, i);
981 lilv_world_load_resource(_world.world, preset);
982 const LilvNode* name = get_value(_world.world, preset, rdfs_label);
984 _presets.insert(std::make_pair(lilv_node_as_string(preset),
985 Plugin::PresetRecord(
986 lilv_node_as_string(preset),
987 lilv_node_as_string(name))));
989 warning << string_compose(
990 _("Plugin \"%1\" preset \"%2\" is missing a label\n"),
991 lilv_node_as_string(lilv_plugin_get_uri(_impl->plugin)),
992 lilv_node_as_string(preset)) << endmsg;
995 lilv_nodes_free(presets);
997 lilv_node_free(rdfs_label);
998 lilv_node_free(pset_Preset);
999 lilv_node_free(lv2_appliesTo);
1003 set_port_value(const char* port_symbol,
1009 LV2Plugin* self = (LV2Plugin*)user_data;
1010 if (type != 0 && type != self->_uri_map.uri_to_id(LV2_ATOM__Float)) {
1011 return; // TODO: Support non-float ports
1014 const uint32_t port_index = self->port_index(port_symbol);
1015 if (port_index != (uint32_t)-1) {
1016 self->set_parameter(port_index, *(const float*)value);
1021 LV2Plugin::load_preset(PresetRecord r)
1023 LilvWorld* world = _world.world;
1024 LilvNode* pset = lilv_new_uri(world, r.uri.c_str());
1025 LilvState* state = lilv_state_new_from_world(world, _uri_map.urid_map(), pset);
1028 lilv_state_restore(state, _impl->instance, set_port_value, this, 0, NULL);
1029 lilv_state_free(state);
1032 lilv_node_free(pset);
1037 ARDOUR::lv2plugin_get_port_value(const char* port_symbol,
1042 LV2Plugin *plugin = (LV2Plugin *) user_data;
1044 uint32_t index = plugin->port_index(port_symbol);
1045 if (index != (uint32_t) -1) {
1046 if (plugin->parameter_is_input(index) && plugin->parameter_is_control(index)) {
1048 *size = sizeof(float);
1049 *type = plugin->_uri_map.uri_to_id(LV2_ATOM__Float);
1050 value = &plugin->_shadow_data[index];
1062 LV2Plugin::do_save_preset(string name)
1064 const string base_name = legalize_for_uri(name);
1065 const string file_name = base_name + ".ttl";
1066 const string bundle = Glib::build_filename(
1067 Glib::get_home_dir(),
1068 Glib::build_filename(".lv2", base_name + ".lv2"));
1070 LilvState* state = lilv_state_new_from_instance(
1073 _uri_map.urid_map(),
1074 scratch_dir().c_str(), // file_dir
1075 bundle.c_str(), // copy_dir
1076 bundle.c_str(), // link_dir
1077 bundle.c_str(), // save_dir
1078 lv2plugin_get_port_value, // get_value
1079 (void*)this, // user_data
1080 LV2_STATE_IS_POD|LV2_STATE_IS_PORTABLE, // flags
1081 _features // features
1084 lilv_state_set_label(state, name.c_str());
1086 _world.world, // world
1087 _uri_map.urid_map(), // map
1088 _uri_map.urid_unmap(), // unmap
1090 NULL, // uri (NULL = use file URI)
1091 bundle.c_str(), // dir
1092 file_name.c_str() // filename
1095 lilv_state_free(state);
1097 return Glib::filename_to_uri(Glib::build_filename(bundle, file_name));
1101 LV2Plugin::do_remove_preset(string name)
1103 string preset_file = Glib::build_filename(
1104 Glib::get_home_dir(),
1105 Glib::build_filename(
1106 Glib::build_filename(".lv2", "presets"),
1110 ::g_unlink(preset_file.c_str());
1114 LV2Plugin::has_editor() const
1116 return _impl->ui != NULL;
1120 LV2Plugin::has_message_output() const
1122 for (uint32_t i = 0; i < num_ports(); ++i) {
1123 if ((_port_flags[i] & PORT_SEQUENCE) &&
1124 (_port_flags[i] & PORT_OUTPUT)) {
1132 LV2Plugin::write_to(RingBuffer<uint8_t>* dest,
1136 const uint8_t* body)
1138 const uint32_t buf_size = sizeof(UIMessage) + size;
1139 vector<uint8_t> buf(buf_size);
1141 UIMessage* msg = (UIMessage*)&buf[0];
1143 msg->protocol = protocol;
1145 memcpy(msg + 1, body, size);
1147 return (dest->write(&buf[0], buf_size) == buf_size);
1151 LV2Plugin::write_from_ui(uint32_t index,
1154 const uint8_t* body)
1157 size_t rbs = _session.engine().raw_buffer_size(DataType::MIDI) * NBUFS;
1158 /* buffer data communication from plugin UI to plugin instance.
1159 * this buffer needs to potentially hold
1160 * (port's minimumSize) * (audio-periods) / (UI-periods)
1163 * e.g 48kSPS / 128fpp -> audio-periods = 375 Hz
1164 * ui-periods = 25 Hz (SuperRapidScreenUpdate)
1165 * default minimumSize = 32K (see LV2Plugin::allocate_atom_event_buffers()
1167 * it is safe to overflow (but the plugin state may be inconsistent).
1169 rbs = max((size_t) 32768 * 6, rbs);
1170 _from_ui = new RingBuffer<uint8_t>(rbs);
1173 if (!write_to(_from_ui, index, protocol, size, body)) {
1174 error << "Error writing from UI to plugin" << endmsg;
1181 LV2Plugin::write_to_ui(uint32_t index,
1184 const uint8_t* body)
1186 if (!write_to(_to_ui, index, protocol, size, body)) {
1187 error << "Error writing from plugin to UI" << endmsg;
1194 LV2Plugin::enable_ui_emmission()
1197 /* see note in LV2Plugin::write_from_ui() */
1198 size_t rbs = _session.engine().raw_buffer_size(DataType::MIDI) * NBUFS;
1199 rbs = max((size_t) 32768 * 8, rbs);
1200 _to_ui = new RingBuffer<uint8_t>(rbs);
1205 LV2Plugin::emit_to_ui(void* controller, UIMessageSink sink)
1211 uint32_t read_space = _to_ui->read_space();
1212 while (read_space > sizeof(UIMessage)) {
1214 if (_to_ui->read((uint8_t*)&msg, sizeof(msg)) != sizeof(msg)) {
1215 error << "Error reading from Plugin=>UI RingBuffer" << endmsg;
1218 vector<uint8_t> body(msg.size);
1219 if (_to_ui->read(&body[0], msg.size) != msg.size) {
1220 error << "Error reading from Plugin=>UI RingBuffer" << endmsg;
1224 sink(controller, msg.index, msg.size, msg.protocol, &body[0]);
1226 read_space -= sizeof(msg) + msg.size;
1231 LV2Plugin::work(uint32_t size, const void* data)
1233 return _impl->work_iface->work(
1234 _impl->instance->lv2_handle, work_respond, this, size, data);
1238 LV2Plugin::work_response(uint32_t size, const void* data)
1240 return _impl->work_iface->work_response(
1241 _impl->instance->lv2_handle, size, data);
1245 LV2Plugin::set_insert_info(const PluginInsert* insert)
1247 _insert_id = insert->id();
1251 LV2Plugin::set_state(const XMLNode& node, int version)
1254 const XMLProperty* prop;
1255 XMLNodeConstIterator iter;
1260 LocaleGuard lg(X_("POSIX"));
1262 if (node.name() != state_node_name()) {
1263 error << _("Bad node sent to LV2Plugin::set_state") << endmsg;
1267 #ifndef NO_PLUGIN_STATE
1269 if (version < 3000) {
1270 nodes = node.children("port");
1272 nodes = node.children("Port");
1275 for (iter = nodes.begin(); iter != nodes.end(); ++iter) {
1279 if ((prop = child->property("symbol")) != 0) {
1280 sym = prop->value().c_str();
1282 warning << _("LV2: port has no symbol, ignored") << endmsg;
1286 map<string, uint32_t>::iterator i = _port_indices.find(sym);
1288 if (i != _port_indices.end()) {
1289 port_id = i->second;
1291 warning << _("LV2: port has unknown index, ignored") << endmsg;
1295 if ((prop = child->property("value")) != 0) {
1296 value = prop->value().c_str();
1298 warning << _("LV2: port has no value, ignored") << endmsg;
1302 set_parameter(port_id, atof(value));
1306 if ((prop = node.property("state-dir")) != 0) {
1307 if (sscanf(prop->value().c_str(), "state%u", &_state_version) != 1) {
1308 error << string_compose(
1309 "LV2: failed to parse state version from \"%1\"",
1310 prop->value()) << endmsg;
1313 std::string state_file = Glib::build_filename(
1315 Glib::build_filename(prop->value(), "state.ttl"));
1317 LilvState* state = lilv_state_new_from_file(
1318 _world.world, _uri_map.urid_map(), NULL, state_file.c_str());
1320 lilv_state_restore(state, _impl->instance, NULL, NULL, 0, NULL);
1323 latency_compute_run();
1326 return Plugin::set_state(node, version);
1330 LV2Plugin::get_parameter_descriptor(uint32_t which, ParameterDescriptor& desc) const
1332 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, which);
1334 LilvNodes* portunits;
1335 LilvNode *def, *min, *max;
1336 lilv_port_get_range(_impl->plugin, port, &def, &min, &max);
1337 portunits = lilv_port_get_value(_impl->plugin, port, _world.units_unit);
1339 desc.integer_step = lilv_port_has_property(_impl->plugin, port, _world.lv2_integer);
1340 desc.toggled = lilv_port_has_property(_impl->plugin, port, _world.lv2_toggled);
1341 desc.logarithmic = lilv_port_has_property(_impl->plugin, port, _world.ext_logarithmic);
1342 desc.sr_dependent = lilv_port_has_property(_impl->plugin, port, _world.lv2_sampleRate);
1343 desc.label = lilv_node_as_string(lilv_port_get_name(_impl->plugin, port));
1344 desc.lower = min ? lilv_node_as_float(min) : 0.0f;
1345 desc.upper = max ? lilv_node_as_float(max) : 1.0f;
1346 desc.midinote = lilv_nodes_contains(portunits, _world.units_midiNote);
1348 if (desc.sr_dependent) {
1349 desc.lower *= _session.frame_rate ();
1350 desc.upper *= _session.frame_rate ();
1353 desc.min_unbound = false; // TODO: LV2 extension required
1354 desc.max_unbound = false; // TODO: LV2 extension required
1356 if (desc.integer_step) {
1358 desc.smallstep = 0.1;
1359 desc.largestep = 10.0;
1361 const float delta = desc.upper - desc.lower;
1362 desc.step = delta / 1000.0f;
1363 desc.smallstep = delta / 10000.0f;
1364 desc.largestep = delta / 10.0f;
1367 desc.enumeration = lilv_port_has_property(_impl->plugin, port, _world.lv2_enumeration);
1369 lilv_node_free(def);
1370 lilv_node_free(min);
1371 lilv_node_free(max);
1372 lilv_nodes_free(portunits);
1378 LV2Plugin::describe_parameter(Evoral::Parameter which)
1380 if (( which.type() == PluginAutomation) && ( which.id() < parameter_count()) ) {
1382 if (lilv_port_has_property(_impl->plugin,
1383 lilv_plugin_get_port_by_index(_impl->plugin, which.id()), _world.ext_notOnGUI)) {
1384 return X_("hidden");
1387 if (lilv_port_has_property(_impl->plugin,
1388 lilv_plugin_get_port_by_index(_impl->plugin, which.id()), _world.lv2_freewheeling)) {
1389 return X_("hidden");
1392 if (lilv_port_has_property(_impl->plugin,
1393 lilv_plugin_get_port_by_index(_impl->plugin, which.id()), _world.lv2_reportsLatency)) {
1394 return X_("latency");
1397 LilvNode* name = lilv_port_get_name(_impl->plugin,
1398 lilv_plugin_get_port_by_index(_impl->plugin, which.id()));
1399 string ret(lilv_node_as_string(name));
1400 lilv_node_free(name);
1408 LV2Plugin::signal_latency() const
1410 if (_latency_control_port) {
1411 return (framecnt_t)floor(*_latency_control_port);
1417 set<Evoral::Parameter>
1418 LV2Plugin::automatable() const
1420 set<Evoral::Parameter> ret;
1422 for (uint32_t i = 0; i < parameter_count(); ++i) {
1423 if (parameter_is_input(i) && parameter_is_control(i)) {
1424 ret.insert(ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
1432 LV2Plugin::activate()
1434 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 activate\n", name()));
1436 if (!_was_activated) {
1437 lilv_instance_activate(_impl->instance);
1438 _was_activated = true;
1443 LV2Plugin::deactivate()
1445 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 deactivate\n", name()));
1447 if (_was_activated) {
1448 lilv_instance_deactivate(_impl->instance);
1449 _was_activated = false;
1454 LV2Plugin::cleanup()
1456 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 cleanup\n", name()));
1460 lilv_instance_free(_impl->instance);
1461 _impl->instance = NULL;
1465 LV2Plugin::allocate_atom_event_buffers()
1467 /* reserve local scratch buffers for ATOM event-queues */
1468 const LilvPlugin* p = _impl->plugin;
1470 /* count non-MIDI atom event-ports
1471 * TODO: nicely ask drobilla to make a lilv_ call for that
1473 int count_atom_out = 0;
1474 int count_atom_in = 0;
1475 int minimumSize = 32768; // TODO use a per-port minimum-size
1476 for (uint32_t i = 0; i < lilv_plugin_get_num_ports(p); ++i) {
1477 const LilvPort* port = lilv_plugin_get_port_by_index(p, i);
1478 if (lilv_port_is_a(p, port, _world.atom_AtomPort)) {
1479 LilvNodes* buffer_types = lilv_port_get_value(
1480 p, port, _world.atom_bufferType);
1481 LilvNodes* atom_supports = lilv_port_get_value(
1482 p, port, _world.atom_supports);
1484 if (!lilv_nodes_contains(buffer_types, _world.atom_Sequence)
1485 || !lilv_nodes_contains(atom_supports, _world.midi_MidiEvent)) {
1486 if (lilv_port_is_a(p, port, _world.lv2_InputPort)) {
1489 if (lilv_port_is_a(p, port, _world.lv2_OutputPort)) {
1492 LilvNodes* min_size_v = lilv_port_get_value(_impl->plugin, port, _world.rsz_minimumSize);
1493 LilvNode* min_size = min_size_v ? lilv_nodes_get_first(min_size_v) : NULL;
1494 if (min_size && lilv_node_is_int(min_size)) {
1495 minimumSize = std::max(minimumSize, lilv_node_as_int(min_size));
1497 lilv_nodes_free(min_size_v);
1499 lilv_nodes_free(buffer_types);
1500 lilv_nodes_free(atom_supports);
1504 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 need buffers for %2 atom-in and %3 atom-out event-ports\n",
1505 name(), count_atom_in, count_atom_out));
1507 const int total_atom_buffers = (count_atom_in + count_atom_out);
1508 if (_atom_ev_buffers || total_atom_buffers == 0) {
1512 DEBUG_TRACE(DEBUG::LV2, string_compose("allocate %1 atom_ev_buffers\n", total_atom_buffers));
1513 _atom_ev_buffers = (LV2_Evbuf**) malloc((total_atom_buffers + 1) * sizeof(LV2_Evbuf*));
1514 for (int i = 0; i < total_atom_buffers; ++i ) {
1515 _atom_ev_buffers[i] = lv2_evbuf_new(minimumSize, LV2_EVBUF_ATOM,
1516 LV2Plugin::urids.atom_Chunk, LV2Plugin::urids.atom_Sequence);
1518 _atom_ev_buffers[total_atom_buffers] = 0;
1522 /** Write an ardour position/time/tempo/meter as an LV2 event.
1523 * @return true on success.
1526 write_position(LV2_Atom_Forge* forge,
1528 const TempoMetric& t,
1529 Timecode::BBT_Time& bbt,
1531 framepos_t position,
1534 uint8_t pos_buf[256];
1535 lv2_atom_forge_set_buffer(forge, pos_buf, sizeof(pos_buf));
1536 LV2_Atom_Forge_Frame frame;
1537 lv2_atom_forge_blank(forge, &frame, 1, LV2Plugin::urids.time_Position);
1538 lv2_atom_forge_property_head(forge, LV2Plugin::urids.time_frame, 0);
1539 lv2_atom_forge_long(forge, position);
1540 lv2_atom_forge_property_head(forge, LV2Plugin::urids.time_speed, 0);
1541 lv2_atom_forge_float(forge, speed);
1542 lv2_atom_forge_property_head(forge, LV2Plugin::urids.time_barBeat, 0);
1543 lv2_atom_forge_float(forge, bbt.beats - 1 +
1544 (bbt.ticks / Timecode::BBT_Time::ticks_per_beat));
1545 lv2_atom_forge_property_head(forge, LV2Plugin::urids.time_bar, 0);
1546 lv2_atom_forge_long(forge, bbt.bars - 1);
1547 lv2_atom_forge_property_head(forge, LV2Plugin::urids.time_beatUnit, 0);
1548 lv2_atom_forge_int(forge, t.meter().note_divisor());
1549 lv2_atom_forge_property_head(forge, LV2Plugin::urids.time_beatsPerBar, 0);
1550 lv2_atom_forge_float(forge, t.meter().divisions_per_bar());
1551 lv2_atom_forge_property_head(forge, LV2Plugin::urids.time_beatsPerMinute, 0);
1552 lv2_atom_forge_float(forge, t.tempo().beats_per_minute());
1554 LV2_Evbuf_Iterator end = lv2_evbuf_end(buf);
1555 const LV2_Atom* const atom = (const LV2_Atom*)pos_buf;
1556 return lv2_evbuf_write(&end, offset, 0, atom->type, atom->size,
1557 (const uint8_t*)(atom + 1));
1561 LV2Plugin::connect_and_run(BufferSet& bufs,
1562 ChanMapping in_map, ChanMapping out_map,
1563 pframes_t nframes, framecnt_t offset)
1565 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 run %2 offset %3\n", name(), nframes, offset));
1566 Plugin::connect_and_run(bufs, in_map, out_map, nframes, offset);
1568 cycles_t then = get_cycles();
1570 TempoMap& tmap = _session.tempo_map();
1571 Metrics::const_iterator metric_i = tmap.metrics_end();
1572 TempoMetric tmetric = tmap.metric_at(_session.transport_frame(), &metric_i);
1574 if (_freewheel_control_port) {
1575 *_freewheel_control_port = _session.engine().freewheeling();
1578 if (_bpm_control_port) {
1579 *_bpm_control_port = tmetric.tempo().beats_per_minute();
1582 ChanCount bufs_count;
1583 bufs_count.set(DataType::AUDIO, 1);
1584 bufs_count.set(DataType::MIDI, 1);
1585 BufferSet& silent_bufs = _session.get_silent_buffers(bufs_count);
1586 BufferSet& scratch_bufs = _session.get_scratch_buffers(bufs_count);
1587 uint32_t const num_ports = parameter_count();
1588 uint32_t const nil_index = std::numeric_limits<uint32_t>::max();
1590 uint32_t audio_in_index = 0;
1591 uint32_t audio_out_index = 0;
1592 uint32_t midi_in_index = 0;
1593 uint32_t midi_out_index = 0;
1594 uint32_t atom_port_index = 0;
1595 for (uint32_t port_index = 0; port_index < num_ports; ++port_index) {
1597 uint32_t index = nil_index;
1598 PortFlags flags = _port_flags[port_index];
1600 if (flags & PORT_AUDIO) {
1601 if (flags & PORT_INPUT) {
1602 index = in_map.get(DataType::AUDIO, audio_in_index++, &valid);
1604 ? bufs.get_audio(index).data(offset)
1605 : silent_bufs.get_audio(0).data(offset);
1607 index = out_map.get(DataType::AUDIO, audio_out_index++, &valid);
1609 ? bufs.get_audio(index).data(offset)
1610 : scratch_bufs.get_audio(0).data(offset);
1612 } else if (flags & (PORT_EVENT|PORT_SEQUENCE)) {
1613 /* FIXME: The checks here for bufs.count().n_midi() > index shouldn't
1614 be necessary, but the mapping is illegal in some cases. Ideally
1615 that should be fixed, but this is easier...
1617 if (flags & PORT_MIDI) {
1618 if (flags & PORT_INPUT) {
1619 index = in_map.get(DataType::MIDI, midi_in_index++, &valid);
1621 index = out_map.get(DataType::MIDI, midi_out_index++, &valid);
1623 if (valid && bufs.count().n_midi() > index) {
1624 /* Note, ensure_lv2_bufsize() is not RT safe!
1625 * However free()/alloc() is only called if a
1626 * plugin requires a rsz:minimumSize buffersize
1627 * and the existing buffer if smaller.
1629 bufs.ensure_lv2_bufsize((flags & PORT_INPUT), index, _port_minimumSize[port_index]);
1630 _ev_buffers[port_index] = bufs.get_lv2_midi(
1631 (flags & PORT_INPUT), index, (flags & PORT_EVENT));
1633 } else if ((flags & PORT_POSITION) && (flags & PORT_INPUT)) {
1634 lv2_evbuf_reset(_atom_ev_buffers[atom_port_index], true);
1635 _ev_buffers[port_index] = _atom_ev_buffers[atom_port_index++];
1639 if (valid && (flags & PORT_INPUT)) {
1640 Timecode::BBT_Time bbt;
1641 if ((flags & PORT_POSITION)) {
1642 if (_session.transport_frame() != _next_cycle_start ||
1643 _session.transport_speed() != _next_cycle_speed) {
1644 // Transport has changed, write position at cycle start
1645 tmap.bbt_time(_session.transport_frame(), bbt);
1646 write_position(&_impl->forge, _ev_buffers[port_index],
1647 tmetric, bbt, _session.transport_speed(),
1648 _session.transport_frame(), 0);
1652 // Get MIDI iterator range (empty range if no MIDI)
1653 MidiBuffer::iterator m = (index != nil_index)
1654 ? bufs.get_midi(index).begin()
1655 : silent_bufs.get_midi(0).end();
1656 MidiBuffer::iterator m_end = (index != nil_index)
1657 ? bufs.get_midi(index).end()
1660 // Now merge MIDI and any transport events into the buffer
1661 const uint32_t type = LV2Plugin::urids.midi_MidiEvent;
1662 const framepos_t tend = _session.transport_frame() + nframes;
1664 while (m != m_end || (metric_i != tmap.metrics_end() &&
1665 (*metric_i)->frame() < tend)) {
1666 MetricSection* metric = (metric_i != tmap.metrics_end())
1668 if (m != m_end && (!metric || metric->frame() > (*m).time())) {
1669 const Evoral::MIDIEvent<framepos_t> ev(*m, false);
1670 LV2_Evbuf_Iterator eend = lv2_evbuf_end(_ev_buffers[port_index]);
1671 lv2_evbuf_write(&eend, ev.time(), 0, type, ev.size(), ev.buffer());
1674 tmetric.set_metric(metric);
1675 bbt = metric->start();
1676 write_position(&_impl->forge, _ev_buffers[port_index],
1677 tmetric, bbt, _session.transport_speed(),
1679 metric->frame() - _session.transport_frame());
1683 } else if (!valid) {
1684 // Nothing we understand or care about, connect to scratch
1685 _ev_buffers[port_index] = scratch_bufs.get_lv2_midi(
1686 (flags & PORT_INPUT), 0, (flags & PORT_EVENT));
1688 buf = lv2_evbuf_get_buffer(_ev_buffers[port_index]);
1690 continue; // Control port, leave buffer alone
1692 lilv_instance_connect_port(_impl->instance, port_index, buf);
1695 // Read messages from UI and push into appropriate buffers
1697 uint32_t read_space = _from_ui->read_space();
1698 while (read_space > sizeof(UIMessage)) {
1700 if (_from_ui->read((uint8_t*)&msg, sizeof(msg)) != sizeof(msg)) {
1701 error << "Error reading from UI=>Plugin RingBuffer" << endmsg;
1704 vector<uint8_t> body(msg.size);
1705 if (_from_ui->read(&body[0], msg.size) != msg.size) {
1706 error << "Error reading from UI=>Plugin RingBuffer" << endmsg;
1709 if (msg.protocol == urids.atom_eventTransfer) {
1710 LV2_Evbuf* buf = _ev_buffers[msg.index];
1711 LV2_Evbuf_Iterator i = lv2_evbuf_end(buf);
1712 const LV2_Atom* const atom = (const LV2_Atom*)&body[0];
1713 if (!lv2_evbuf_write(&i, nframes, 0, atom->type, atom->size,
1714 (const uint8_t*)(atom + 1))) {
1715 error << "Failed to write data to LV2 event buffer\n";
1718 error << "Received unknown message type from UI" << endmsg;
1720 read_space -= sizeof(UIMessage) + msg.size;
1727 for (uint32_t port_index = 0; port_index < num_ports; ++port_index) {
1728 PortFlags flags = _port_flags[port_index];
1731 /* TODO ask drobilla about comment
1732 * "Make Ardour event buffers generic so plugins can communicate"
1733 * in libs/ardour/buffer_set.cc:310
1735 * ideally the user could choose which of the following two modes
1736 * to use (e.g. instrument/effect chains MIDI OUT vs MIDI TRHU).
1738 * This implementation follows the discussion on IRC Mar 16 2013 16:47 UTC
1739 * 16:51 < drobilla> rgareus: [..] i.e always replace with MIDI output [of LV2 plugin] if it's there
1740 * 16:52 < drobilla> rgareus: That would probably be good enough [..] to make users not complain
1741 * for quite a while at least ;)
1743 // copy output of LV2 plugin's MIDI port to Ardour MIDI buffers -- MIDI OUT
1744 if ((flags & PORT_OUTPUT) && (flags & (PORT_EVENT|PORT_SEQUENCE|PORT_MIDI))) {
1745 const uint32_t buf_index = out_map.get(
1746 DataType::MIDI, midi_out_index++, &valid);
1748 bufs.forward_lv2_midi(_ev_buffers[port_index], buf_index);
1751 // Flush MIDI (write back to Ardour MIDI buffers) -- MIDI THRU
1752 else if ((flags & PORT_OUTPUT) && (flags & (PORT_EVENT|PORT_SEQUENCE))) {
1753 const uint32_t buf_index = out_map.get(
1754 DataType::MIDI, midi_out_index++, &valid);
1756 bufs.flush_lv2_midi(true, buf_index);
1760 // Write messages to UI
1761 if (_to_ui && (flags & PORT_OUTPUT) && (flags & (PORT_EVENT|PORT_SEQUENCE))) {
1762 LV2_Evbuf* buf = _ev_buffers[port_index];
1763 for (LV2_Evbuf_Iterator i = lv2_evbuf_begin(buf);
1764 lv2_evbuf_is_valid(i);
1765 i = lv2_evbuf_next(i)) {
1766 uint32_t frames, subframes, type, size;
1768 lv2_evbuf_get(i, &frames, &subframes, &type, &size, &data);
1769 write_to_ui(port_index, urids.atom_eventTransfer,
1770 size + sizeof(LV2_Atom),
1771 data - sizeof(LV2_Atom));
1776 cycles_t now = get_cycles();
1777 set_cycles((uint32_t)(now - then));
1779 // Update expected transport information for next cycle so we can detect changes
1780 _next_cycle_speed = _session.transport_speed();
1781 _next_cycle_start = _session.transport_frame() + (nframes * _next_cycle_speed);
1787 LV2Plugin::parameter_is_control(uint32_t param) const
1789 assert(param < _port_flags.size());
1790 return _port_flags[param] & PORT_CONTROL;
1794 LV2Plugin::parameter_is_audio(uint32_t param) const
1796 assert(param < _port_flags.size());
1797 return _port_flags[param] & PORT_AUDIO;
1801 LV2Plugin::parameter_is_event(uint32_t param) const
1803 assert(param < _port_flags.size());
1804 return _port_flags[param] & PORT_EVENT;
1808 LV2Plugin::parameter_is_output(uint32_t param) const
1810 assert(param < _port_flags.size());
1811 return _port_flags[param] & PORT_OUTPUT;
1815 LV2Plugin::parameter_is_input(uint32_t param) const
1817 assert(param < _port_flags.size());
1818 return _port_flags[param] & PORT_INPUT;
1822 LV2Plugin::print_parameter(uint32_t param, char* buf, uint32_t len) const
1825 if (param < parameter_count()) {
1826 snprintf(buf, len, "%.3f", get_parameter(param));
1833 boost::shared_ptr<Plugin::ScalePoints>
1834 LV2Plugin::get_scale_points(uint32_t port_index) const
1836 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, port_index);
1837 LilvScalePoints* points = lilv_port_get_scale_points(_impl->plugin, port);
1839 boost::shared_ptr<Plugin::ScalePoints> ret;
1844 ret = boost::shared_ptr<Plugin::ScalePoints>(new ScalePoints());
1846 LILV_FOREACH(scale_points, i, points) {
1847 const LilvScalePoint* p = lilv_scale_points_get(points, i);
1848 const LilvNode* label = lilv_scale_point_get_label(p);
1849 const LilvNode* value = lilv_scale_point_get_value(p);
1850 if (label && (lilv_node_is_float(value) || lilv_node_is_int(value))) {
1851 ret->insert(make_pair(lilv_node_as_string(label),
1852 lilv_node_as_float(value)));
1856 lilv_scale_points_free(points);
1861 LV2Plugin::run(pframes_t nframes)
1863 uint32_t const N = parameter_count();
1864 for (uint32_t i = 0; i < N; ++i) {
1865 if (parameter_is_control(i) && parameter_is_input(i)) {
1866 _control_data[i] = _shadow_data[i];
1870 lilv_instance_run(_impl->instance, nframes);
1872 if (_impl->work_iface) {
1873 _worker->emit_responses();
1874 if (_impl->work_iface->end_run) {
1875 _impl->work_iface->end_run(_impl->instance->lv2_handle);
1881 LV2Plugin::latency_compute_run()
1883 if (!_latency_control_port) {
1887 // Run the plugin so that it can set its latency parameter
1891 uint32_t port_index = 0;
1892 uint32_t in_index = 0;
1893 uint32_t out_index = 0;
1895 const framecnt_t bufsize = 1024;
1896 float buffer[bufsize];
1898 memset(buffer, 0, sizeof(float) * bufsize);
1900 // FIXME: Ensure plugins can handle in-place processing
1904 while (port_index < parameter_count()) {
1905 if (parameter_is_audio(port_index)) {
1906 if (parameter_is_input(port_index)) {
1907 lilv_instance_connect_port(_impl->instance, port_index, buffer);
1909 } else if (parameter_is_output(port_index)) {
1910 lilv_instance_connect_port(_impl->instance, port_index, buffer);
1922 LV2Plugin::Impl::designated_input (const char* uri, void** bufptrs[], void** bufptr)
1924 const LilvPort* port = NULL;
1925 LilvNode* designation = lilv_new_uri(_world.world, uri);
1926 port = lilv_plugin_get_port_by_designation(
1927 plugin, _world.lv2_InputPort, designation);
1928 lilv_node_free(designation);
1930 bufptrs[lilv_port_get_index(plugin, port)] = bufptr;
1935 static bool lv2_filter (const string& str, void* /*arg*/)
1937 /* Not a dotfile, has a prefix before a period, suffix is "lv2" */
1939 return str[0] != '.' && (str.length() > 3 && str.find (".lv2") == (str.length() - 4));
1943 LV2World::LV2World()
1944 : world(lilv_world_new())
1945 , _bundle_checked(false)
1947 lilv_world_load_all(world);
1949 atom_AtomPort = lilv_new_uri(world, LV2_ATOM__AtomPort);
1950 atom_Chunk = lilv_new_uri(world, LV2_ATOM__Chunk);
1951 atom_Sequence = lilv_new_uri(world, LV2_ATOM__Sequence);
1952 atom_bufferType = lilv_new_uri(world, LV2_ATOM__bufferType);
1953 atom_supports = lilv_new_uri(world, LV2_ATOM__supports);
1954 atom_eventTransfer = lilv_new_uri(world, LV2_ATOM__eventTransfer);
1955 ev_EventPort = lilv_new_uri(world, LILV_URI_EVENT_PORT);
1956 ext_logarithmic = lilv_new_uri(world, LV2_PORT_PROPS__logarithmic);
1957 ext_notOnGUI = lilv_new_uri(world, LV2_PORT_PROPS__notOnGUI);
1958 lv2_AudioPort = lilv_new_uri(world, LILV_URI_AUDIO_PORT);
1959 lv2_ControlPort = lilv_new_uri(world, LILV_URI_CONTROL_PORT);
1960 lv2_InputPort = lilv_new_uri(world, LILV_URI_INPUT_PORT);
1961 lv2_OutputPort = lilv_new_uri(world, LILV_URI_OUTPUT_PORT);
1962 lv2_inPlaceBroken = lilv_new_uri(world, LV2_CORE__inPlaceBroken);
1963 lv2_integer = lilv_new_uri(world, LV2_CORE__integer);
1964 lv2_reportsLatency = lilv_new_uri(world, LV2_CORE__reportsLatency);
1965 lv2_sampleRate = lilv_new_uri(world, LV2_CORE__sampleRate);
1966 lv2_toggled = lilv_new_uri(world, LV2_CORE__toggled);
1967 lv2_enumeration = lilv_new_uri(world, LV2_CORE__enumeration);
1968 lv2_freewheeling = lilv_new_uri(world, LV2_CORE__freeWheeling);
1969 midi_MidiEvent = lilv_new_uri(world, LILV_URI_MIDI_EVENT);
1970 rdfs_comment = lilv_new_uri(world, LILV_NS_RDFS "comment");
1971 rsz_minimumSize = lilv_new_uri(world, LV2_RESIZE_PORT__minimumSize);
1972 time_Position = lilv_new_uri(world, LV2_TIME__Position);
1973 ui_GtkUI = lilv_new_uri(world, LV2_UI__GtkUI);
1974 ui_external = lilv_new_uri(world, "http://lv2plug.in/ns/extensions/ui#external");
1975 ui_externalkx = lilv_new_uri(world, "http://kxstudio.sf.net/ns/lv2ext/external-ui#Widget");
1976 units_unit = lilv_new_uri(world, "http://lv2plug.in/ns/extensions/units#unit");
1977 units_midiNote = lilv_new_uri(world, "http://lv2plug.in/ns/extensions/units#midiNote");
1980 LV2World::~LV2World()
1982 lilv_node_free(units_midiNote);
1983 lilv_node_free(units_unit);
1984 lilv_node_free(ui_externalkx);
1985 lilv_node_free(ui_external);
1986 lilv_node_free(ui_GtkUI);
1987 lilv_node_free(time_Position);
1988 lilv_node_free(rsz_minimumSize);
1989 lilv_node_free(rdfs_comment);
1990 lilv_node_free(midi_MidiEvent);
1991 lilv_node_free(lv2_enumeration);
1992 lilv_node_free(lv2_freewheeling);
1993 lilv_node_free(lv2_toggled);
1994 lilv_node_free(lv2_sampleRate);
1995 lilv_node_free(lv2_reportsLatency);
1996 lilv_node_free(lv2_integer);
1997 lilv_node_free(lv2_inPlaceBroken);
1998 lilv_node_free(lv2_OutputPort);
1999 lilv_node_free(lv2_InputPort);
2000 lilv_node_free(lv2_ControlPort);
2001 lilv_node_free(lv2_AudioPort);
2002 lilv_node_free(ext_notOnGUI);
2003 lilv_node_free(ext_logarithmic);
2004 lilv_node_free(ev_EventPort);
2005 lilv_node_free(atom_supports);
2006 lilv_node_free(atom_eventTransfer);
2007 lilv_node_free(atom_bufferType);
2008 lilv_node_free(atom_Sequence);
2009 lilv_node_free(atom_Chunk);
2010 lilv_node_free(atom_AtomPort);
2014 LV2World::load_bundled_plugins()
2016 if (!_bundle_checked) {
2017 cout << "Scanning folders for bundled LV2s: " << ARDOUR::lv2_bundled_search_path().to_string() << endl;
2018 PathScanner scanner;
2019 vector<string *> *plugin_objects = scanner (ARDOUR::lv2_bundled_search_path().to_string(), lv2_filter, 0, true, true);
2020 if (plugin_objects) {
2021 for ( vector<string *>::iterator x = plugin_objects->begin(); x != plugin_objects->end (); ++x) {
2022 #ifdef PLATFORM_WINDOWS
2023 string uri = "file:///" + **x + "/";
2025 string uri = "file://" + **x + "/";
2027 LilvNode *node = lilv_new_uri(world, uri.c_str());
2028 lilv_world_load_bundle(world, node);
2029 lilv_node_free(node);
2032 delete (plugin_objects);
2034 _bundle_checked = true;
2038 LV2PluginInfo::LV2PluginInfo (const void* c_plugin)
2039 : _c_plugin(c_plugin)
2044 LV2PluginInfo::~LV2PluginInfo()
2048 LV2PluginInfo::load(Session& session)
2053 plugin.reset(new LV2Plugin(session.engine(), session,
2054 (const LilvPlugin*)_c_plugin,
2055 session.frame_rate()));
2057 plugin->set_info(PluginInfoPtr(new LV2PluginInfo(*this)));
2059 } catch (failed_constructor& err) {
2060 return PluginPtr((Plugin*)0);
2067 LV2PluginInfo::discover()
2069 _world.load_bundled_plugins();
2071 PluginInfoList* plugs = new PluginInfoList;
2072 const LilvPlugins* plugins = lilv_world_get_all_plugins(_world.world);
2074 info << "LV2: Discovering " << lilv_plugins_size(plugins) << " plugins" << endmsg;
2076 LILV_FOREACH(plugins, i, plugins) {
2077 const LilvPlugin* p = lilv_plugins_get(plugins, i);
2078 LV2PluginInfoPtr info(new LV2PluginInfo((const void*)p));
2080 LilvNode* name = lilv_plugin_get_name(p);
2081 if (!name || !lilv_plugin_get_port_by_index(p, 0)) {
2082 warning << "Ignoring invalid LV2 plugin "
2083 << lilv_node_as_string(lilv_plugin_get_uri(p))
2090 info->name = string(lilv_node_as_string(name));
2091 lilv_node_free(name);
2093 const LilvPluginClass* pclass = lilv_plugin_get_class(p);
2094 const LilvNode* label = lilv_plugin_class_get_label(pclass);
2095 info->category = lilv_node_as_string(label);
2097 LilvNode* author_name = lilv_plugin_get_author_name(p);
2098 info->creator = author_name ? string(lilv_node_as_string(author_name)) : "Unknown";
2099 lilv_node_free(author_name);
2101 info->path = "/NOPATH"; // Meaningless for LV2
2103 /* count atom-event-ports that feature
2104 * atom:supports <http://lv2plug.in/ns/ext/midi#MidiEvent>
2106 * TODO: nicely ask drobilla to make a lilv_ call for that
2108 int count_midi_out = 0;
2109 int count_midi_in = 0;
2110 for (uint32_t i = 0; i < lilv_plugin_get_num_ports(p); ++i) {
2111 const LilvPort* port = lilv_plugin_get_port_by_index(p, i);
2112 if (lilv_port_is_a(p, port, _world.atom_AtomPort)) {
2113 LilvNodes* buffer_types = lilv_port_get_value(
2114 p, port, _world.atom_bufferType);
2115 LilvNodes* atom_supports = lilv_port_get_value(
2116 p, port, _world.atom_supports);
2118 if (lilv_nodes_contains(buffer_types, _world.atom_Sequence)
2119 && lilv_nodes_contains(atom_supports, _world.midi_MidiEvent)) {
2120 if (lilv_port_is_a(p, port, _world.lv2_InputPort)) {
2123 if (lilv_port_is_a(p, port, _world.lv2_OutputPort)) {
2127 lilv_nodes_free(buffer_types);
2128 lilv_nodes_free(atom_supports);
2132 info->n_inputs.set_audio(
2133 lilv_plugin_get_num_ports_of_class(
2134 p, _world.lv2_InputPort, _world.lv2_AudioPort, NULL));
2135 info->n_inputs.set_midi(
2136 lilv_plugin_get_num_ports_of_class(
2137 p, _world.lv2_InputPort, _world.ev_EventPort, NULL)
2140 info->n_outputs.set_audio(
2141 lilv_plugin_get_num_ports_of_class(
2142 p, _world.lv2_OutputPort, _world.lv2_AudioPort, NULL));
2143 info->n_outputs.set_midi(
2144 lilv_plugin_get_num_ports_of_class(
2145 p, _world.lv2_OutputPort, _world.ev_EventPort, NULL)
2148 info->unique_id = lilv_node_as_uri(lilv_plugin_get_uri(p));
2149 info->index = 0; // Meaningless for LV2
2151 plugs->push_back(info);