2 Copyright (C) 2008-2011 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.
30 #include "pbd/compose.h"
31 #include "pbd/error.h"
32 #include "pbd/pathscanner.h"
33 #include "pbd/xml++.h"
35 #include "ardour/ardour.h"
36 #include "ardour/audio_buffer.h"
37 #include "ardour/audioengine.h"
38 #include "ardour/debug.h"
39 #include "ardour/lv2_event_buffer.h"
40 #include "ardour/lv2_plugin.h"
41 #include "ardour/session.h"
43 #include "pbd/stl_delete.h"
48 #include "lv2ext/lv2_files.h"
49 #include "lv2ext/lv2_persist.h"
52 #define NS_DC "http://dublincore.org/documents/dcmi-namespace/"
53 #define NS_LV2 "http://lv2plug.in/ns/lv2core#"
54 #define NS_PSET "http://lv2plug.in/ns/dev/presets#"
55 #define NS_UI "http://lv2plug.in/ns/extensions/ui#"
58 using namespace ARDOUR;
61 URIMap LV2Plugin::_uri_map;
62 uint32_t LV2Plugin::_midi_event_type = _uri_map.uri_to_id(
63 "http://lv2plug.in/ns/ext/event",
64 "http://lv2plug.in/ns/ext/midi#MidiEvent");
66 LV2Plugin::LV2Plugin (AudioEngine& engine,
71 : Plugin(engine, session)
76 init(world, plugin, rate);
79 LV2Plugin::LV2Plugin (const LV2Plugin& other)
81 , _world(other._world)
83 , _insert_id(other._insert_id)
85 init(other._world, other._plugin, other._sample_rate);
87 for (uint32_t i = 0; i < parameter_count(); ++i) {
88 _control_data[i] = other._shadow_data[i];
89 _shadow_data[i] = other._shadow_data[i];
94 LV2Plugin::init(LV2World& world, SLV2Plugin plugin, framecnt_t rate)
96 DEBUG_TRACE(DEBUG::LV2, "init\n");
103 _latency_control_port = 0;
104 _was_activated = false;
106 _instance_access_feature.URI = "http://lv2plug.in/ns/ext/instance-access";
107 _data_access_feature.URI = "http://lv2plug.in/ns/ext/data-access";
108 _files_feature.URI = LV2_FILES_FILE_SUPPORT_URI;
109 _persist_feature.URI = "http://lv2plug.in/ns/ext/persist";
110 _persist_feature.data = NULL;
112 SLV2Value persist_uri = slv2_value_new_uri(_world.world, _persist_feature.URI);
113 _supports_persist = slv2_plugin_has_feature(plugin, persist_uri);
114 slv2_value_free(persist_uri);
116 _features = (LV2_Feature**)malloc(sizeof(LV2_Feature*) * 6);
117 _features[0] = &_instance_access_feature;
118 _features[1] = &_data_access_feature;
119 _features[2] = &_files_feature;
120 _features[3] = &_persist_feature;
121 _features[4] = _uri_map.feature();
124 LV2_Files_File_Support* file_support = (LV2_Files_File_Support*)malloc(
125 sizeof(LV2_Files_File_Support));
126 file_support->host_data = this;
127 file_support->abstract_path = &lv2_files_abstract_path;
128 file_support->absolute_path = &lv2_files_absolute_path;
129 file_support->new_file_path = &lv2_files_new_file_path;
131 _files_feature.data = file_support;
133 _instance = slv2_plugin_instantiate(plugin, rate, _features);
134 _name = slv2_plugin_get_name(plugin);
135 _author = slv2_plugin_get_author_name(plugin);
137 if (_instance == 0) {
138 error << _("LV2: Failed to instantiate plugin ")
139 << slv2_value_as_string(slv2_plugin_get_uri(plugin)) << endmsg;
140 throw failed_constructor();
143 _instance_access_feature.data = (void*)_instance->lv2_handle;
144 _data_access_extension_data.extension_data = _instance->lv2_descriptor->extension_data;
145 _data_access_feature.data = &_data_access_extension_data;
147 if (slv2_plugin_has_feature(plugin, world.in_place_broken)) {
148 error << string_compose(
149 _("LV2: \"%1\" cannot be used, since it cannot do inplace processing"),
150 slv2_value_as_string(_name)) << endmsg;
151 slv2_value_free(_name);
152 slv2_value_free(_author);
153 throw failed_constructor();
158 const uint32_t num_ports = slv2_plugin_get_num_ports(plugin);
159 const bool latent = slv2_plugin_has_latency(plugin);
160 const uint32_t latency_port = (latent)
161 ? slv2_plugin_get_latency_port_index(plugin)
164 _control_data = new float[num_ports];
165 _shadow_data = new float[num_ports];
166 _defaults = new float[num_ports];
168 for (uint32_t i = 0; i < num_ports; ++i) {
169 SLV2Port port = slv2_plugin_get_port_by_index(plugin, i);
170 SLV2Value sym = slv2_port_get_symbol(_plugin, port);
172 // Store index in map so we can look up index by symbol
173 _port_indices.insert(std::make_pair(slv2_value_as_string(sym), i));
175 // Get range and default value if applicable
176 if (parameter_is_control(i)) {
178 slv2_port_get_range(plugin, port, &def, NULL, NULL);
179 _defaults[i] = def ? slv2_value_as_float(def) : 0.0f;
180 slv2_value_free(def);
182 slv2_instance_connect_port(_instance, i, &_control_data[i]);
184 if (latent && ( i == latency_port) ) {
185 _latency_control_port = &_control_data[i];
186 *_latency_control_port = 0;
189 if (parameter_is_input(i)) {
190 _shadow_data[i] = default_value(i);
197 SLV2UIs uis = slv2_plugin_get_uis(_plugin);
198 if (slv2_uis_size(uis) > 0) {
199 // Look for Gtk native UI
200 for (unsigned i = 0; i < slv2_uis_size(uis); ++i) {
201 SLV2UI ui = slv2_uis_get_at(uis, i);
202 if (slv2_ui_is_a(ui, _world.gtk_gui)) {
208 // If Gtk UI is not available, try to find external UI
210 for (unsigned i = 0; i < slv2_uis_size(uis); ++i) {
211 SLV2UI ui = slv2_uis_get_at(uis, i);
212 if (slv2_ui_is_a(ui, _world.external_gui)) {
220 latency_compute_run();
223 LV2Plugin::~LV2Plugin ()
225 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 destroy\n", name()));
230 slv2_instance_free(_instance);
231 slv2_value_free(_name);
232 slv2_value_free(_author);
234 delete [] _control_data;
235 delete [] _shadow_data;
239 LV2Plugin::is_external_ui() const
241 return slv2_ui_is_a(_ui, _world.external_gui);
245 LV2Plugin::unique_id() const
247 return slv2_value_as_uri(slv2_plugin_get_uri(_plugin));
251 LV2Plugin::default_value(uint32_t port)
253 return _defaults[port];
257 LV2Plugin::port_symbol(uint32_t index) const
259 SLV2Port port = slv2_plugin_get_port_by_index(_plugin, index);
261 error << name() << ": Invalid port index " << index << endmsg;
264 SLV2Value sym = slv2_port_get_symbol(_plugin, port);
265 return slv2_value_as_string(sym);
269 LV2Plugin::set_parameter(uint32_t which, float val)
271 DEBUG_TRACE(DEBUG::LV2, string_compose(
272 "%1 set parameter %2 to %3\n", name(), which, val));
274 if (which < slv2_plugin_get_num_ports(_plugin)) {
275 _shadow_data[which] = val;
277 warning << string_compose(
278 _("Illegal parameter number used with plugin \"%1\". "
279 "This is a bug in either %2 or the LV2 plugin <%3>"),
280 name(), PROGRAM_NAME, unique_id()) << endmsg;
283 Plugin::set_parameter(which, val);
287 LV2Plugin::get_parameter(uint32_t which) const
289 if (parameter_is_input(which)) {
290 return (float)_shadow_data[which];
292 return (float)_control_data[which];
298 LV2Plugin::nth_parameter(uint32_t n, bool& ok) const
301 for (uint32_t c = 0, x = 0; x < slv2_plugin_get_num_ports(_plugin); ++x) {
302 if (parameter_is_control(x)) {
313 struct PersistValue {
314 inline PersistValue(uint32_t k, const void* v, size_t s, uint32_t t, uint32_t f)
315 : key(k), value(v), size(s), type(t), flags(f)
325 struct PersistState {
326 PersistState(URIMap& map) : uri_map(map) {}
328 typedef std::map<uint32_t, std::string> URIs;
329 typedef std::map<uint32_t, PersistValue> Values;
331 uint32_t file_id_to_runtime_id(uint32_t file_id) const {
332 URIs::const_iterator i = uris.find(file_id);
333 if (i == uris.end()) {
334 error << "LV2 state refers to undefined URI ID" << endmsg;
337 return uri_map.uri_to_id(NULL, i->second.c_str());
340 int add_uri(uint32_t file_id, const char* str) {
341 // TODO: check for clashes (invalid file)
342 uris.insert(make_pair(file_id, str));
346 int add_value(uint32_t file_key,
351 const uint32_t key = file_id_to_runtime_id(file_key);
352 const uint32_t type = file_id_to_runtime_id(file_type);
357 Values::const_iterator i = values.find(key);
358 if (i != values.end()) {
359 error << "LV2 state contains duplicate keys" << endmsg;
362 void* value_copy = malloc(size);
363 memcpy(value_copy, value, size); // FIXME: leak
366 PersistValue(key, value_copy, size, type, flags)));
377 LV2Plugin::lv2_persist_store_callback(void* host_data,
384 DEBUG_TRACE(DEBUG::LV2, string_compose(
385 "persist store %1 (size: %2, type: %3)\n",
386 _uri_map.id_to_uri(NULL, key),
388 _uri_map.id_to_uri(NULL, type)));
390 PersistState* state = (PersistState*)host_data;
391 state->add_uri(key, _uri_map.id_to_uri(NULL, key));
392 state->add_uri(type, _uri_map.id_to_uri(NULL, type));
393 return state->add_value(key, value, size, type, flags);
397 LV2Plugin::lv2_persist_retrieve_callback(void* host_data,
403 PersistState* state = (PersistState*)host_data;
404 PersistState::Values::const_iterator i = state->values.find(key);
405 if (i == state->values.end()) {
406 warning << "LV2 plugin attempted to retrieve nonexistent key: "
407 << _uri_map.id_to_uri(NULL, key) << endmsg;
410 *size = i->second.size;
411 *type = i->second.type;
412 *flags = LV2_PERSIST_IS_POD | LV2_PERSIST_IS_PORTABLE; // FIXME
413 DEBUG_TRACE(DEBUG::LV2, string_compose(
414 "persist retrieve %1 = %2 (size: %3, type: %4)\n",
415 _uri_map.id_to_uri(NULL, key),
416 i->second.value, *size, *type));
417 return i->second.value;
421 LV2Plugin::lv2_files_abstract_path(LV2_Files_Host_Data host_data,
422 const char* absolute_path)
424 LV2Plugin* me = (LV2Plugin*)host_data;
425 assert(me->_insert_id != PBD::ID("0"));
427 const std::string state_dir = Glib::build_filename(me->_session.plugins_dir(),
428 me->_insert_id.to_s());
431 if (strncmp(absolute_path, state_dir.c_str(), state_dir.length())) {
432 ret = g_strdup(absolute_path);
434 const std::string path(absolute_path + state_dir.length() + 1);
435 ret = g_strndup(path.c_str(), path.length());
438 DEBUG_TRACE(DEBUG::LV2, string_compose("abstract path %1 => %2\n",
439 absolute_path, ret));
445 LV2Plugin::lv2_files_absolute_path(LV2_Files_Host_Data host_data,
446 const char* abstract_path)
448 LV2Plugin* me = (LV2Plugin*)host_data;
449 assert(me->_insert_id != PBD::ID("0"));
452 if (g_path_is_absolute(abstract_path)) {
453 ret = g_strdup(abstract_path);
455 const std::string apath(abstract_path);
456 const std::string state_dir = Glib::build_filename(me->_session.plugins_dir(),
457 me->_insert_id.to_s());
458 const std::string path = Glib::build_filename(state_dir,
460 ret = g_strndup(path.c_str(), path.length());
463 DEBUG_TRACE(DEBUG::LV2, string_compose("absolute path %1 => %2\n",
464 abstract_path, ret));
470 LV2Plugin::lv2_files_new_file_path(LV2_Files_Host_Data host_data,
471 const char* relative_path)
473 LV2Plugin* me = (LV2Plugin*)host_data;
474 assert(me->_insert_id != PBD::ID("0"));
476 const std::string state_dir = Glib::build_filename(me->_session.plugins_dir(),
477 me->_insert_id.to_s());
478 const std::string path = Glib::build_filename(state_dir,
481 char* dirname = g_path_get_dirname(path.c_str());
482 g_mkdir_with_parents(dirname, 0744);
485 DEBUG_TRACE(DEBUG::LV2, string_compose("new file path %1 => %2\n",
486 relative_path, path));
488 return g_strndup(path.c_str(), path.length());
492 LV2Plugin::add_state(XMLNode* root) const
494 assert(_insert_id != PBD::ID("0"));
498 LocaleGuard lg(X_("POSIX"));
500 for (uint32_t i = 0; i < parameter_count(); ++i) {
501 if (parameter_is_input(i) && parameter_is_control(i)) {
502 child = new XMLNode("Port");
503 child->add_property("symbol", port_symbol(i));
504 snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]);
505 child->add_property("value", string(buf));
506 root->add_child_nocopy(*child);
510 if (_supports_persist) {
511 // Create state directory for this plugin instance
512 const std::string state_filename = _insert_id.to_s() + ".rdff";
513 const std::string state_path = Glib::build_filename(
514 _session.plugins_dir(), state_filename);
516 cout << "Saving LV2 plugin state to " << state_path << endl;
518 // Get LV2 Persist extension data from plugin instance
519 LV2_Persist* persist = (LV2_Persist*)slv2_instance_get_extension_data(
520 _instance, "http://lv2plug.in/ns/ext/persist");
522 warning << string_compose(
523 _("Plugin \"%1\% failed to return LV2 persist data"),
528 // Save plugin state to state object
529 PersistState state(_uri_map);
530 persist->save(_instance->lv2_handle,
531 &LV2Plugin::lv2_persist_store_callback,
535 RDFF file = rdff_open(state_path.c_str(), true);
537 // Write all referenced URIs to state file
538 for (PersistState::URIs::const_iterator i = state.uris.begin();
539 i != state.uris.end(); ++i) {
546 // Write all values to state file
547 for (PersistState::Values::const_iterator i = state.values.begin();
548 i != state.values.end(); ++i) {
549 const uint32_t key = i->first;
550 const PersistValue& val = i->second;
551 rdff_write_triple(file,
562 root->add_property("state-file", state_filename);
566 static inline SLV2Value
567 get_value(SLV2Plugin p, SLV2Value subject, SLV2Value predicate)
569 SLV2Values vs = slv2_plugin_get_value_for_subject(p, subject, predicate);
570 return vs ? slv2_values_get_at(vs, 0) : NULL;
574 LV2Plugin::find_presets()
576 SLV2Value dc_title = slv2_value_new_uri(_world.world, NS_DC "title");
577 SLV2Value pset_hasPreset = slv2_value_new_uri(_world.world, NS_PSET "hasPreset");
579 SLV2Values presets = slv2_plugin_get_value(_plugin, pset_hasPreset);
580 for (unsigned i = 0; i < slv2_values_size(presets); ++i) {
581 SLV2Value preset = slv2_values_get_at(presets, i);
582 SLV2Value name = get_value(_plugin, preset, dc_title);
584 _presets.insert(std::make_pair(slv2_value_as_string(preset),
586 slv2_value_as_string(preset),
587 slv2_value_as_string(name))));
589 warning << string_compose(
590 _("Plugin \"%1\% preset \"%2%\" is missing a dc:title\n"),
591 unique_id(), slv2_value_as_string(preset));
594 slv2_values_free(presets);
596 slv2_value_free(pset_hasPreset);
597 slv2_value_free(dc_title);
601 LV2Plugin::load_preset(PresetRecord r)
603 Plugin::load_preset(r);
606 // New (>= 0.7.0) slv2 no longer supports SPARQL, but exposes blank nodes
607 // so querying ports is possible with the simple/fast API
608 SLV2Value lv2_port = slv2_value_new_uri(_world.world, NS_LV2 "port");
609 SLV2Value lv2_symbol = slv2_value_new_uri(_world.world, NS_LV2 "symbol");
610 SLV2Value pset_value = slv2_value_new_uri(_world.world, NS_PSET "value");
611 SLV2Value preset = slv2_value_new_uri(_world.world, r.uri.c_str());
613 SLV2Values ports = slv2_plugin_get_value_for_subject(_plugin, preset, lv2_port);
614 for (unsigned i = 0; i < slv2_values_size(ports); ++i) {
615 SLV2Value port = slv2_values_get_at(ports, i);
616 SLV2Value symbol = get_value(_plugin, port, lv2_symbol);
617 SLV2Value value = get_value(_plugin, port, pset_value);
618 if (value && slv2_value_is_float(value)) {
619 set_parameter(_port_indices[slv2_value_as_string(symbol)],
620 slv2_value_as_float(value));
623 slv2_values_free(ports);
625 slv2_value_free(preset);
626 slv2_value_free(pset_value);
627 slv2_value_free(lv2_symbol);
628 slv2_value_free(lv2_port);
630 const string query = string(
631 "PREFIX lv2p: <http://lv2plug.in/ns/dev/presets#>\n"
632 "PREFIX dc: <http://dublincore.org/documents/dcmi-namespace/>\n"
633 "SELECT ?sym ?val WHERE { <") + r.uri + "> lv2:port ?port . "
634 " ?port lv2:symbol ?sym ; lv2p:value ?val . }";
635 SLV2Results values = slv2_plugin_query_sparql(_plugin, query.c_str());
636 for (; !slv2_results_finished(values); slv2_results_next(values)) {
637 SLV2Value sym = slv2_results_get_binding_value(values, 0);
638 SLV2Value val = slv2_results_get_binding_value(values, 1);
639 if (slv2_value_is_float(val)) {
640 uint32_t index = _port_indices[slv2_value_as_string(sym)];
641 set_parameter(index, slv2_value_as_float(val));
644 slv2_results_free(values);
650 LV2Plugin::do_save_preset(string /*name*/)
656 LV2Plugin::do_remove_preset(string /*name*/)
660 LV2Plugin::has_editor() const
666 LV2Plugin::set_insert_info(const PluginInsert* insert)
668 _insert_id = insert->id();
672 LV2Plugin::set_state(const XMLNode& node, int version)
675 const XMLProperty* prop;
676 XMLNodeConstIterator iter;
681 LocaleGuard lg(X_("POSIX"));
683 if (node.name() != state_node_name()) {
684 error << _("Bad node sent to LV2Plugin::set_state") << endmsg;
688 if (version < 3000) {
689 nodes = node.children("port");
691 nodes = node.children("Port");
694 for (iter = nodes.begin(); iter != nodes.end(); ++iter) {
698 if ((prop = child->property("symbol")) != 0) {
699 sym = prop->value().c_str();
701 warning << _("LV2: port has no symbol, ignored") << endmsg;
705 map<string, uint32_t>::iterator i = _port_indices.find(sym);
707 if (i != _port_indices.end()) {
710 warning << _("LV2: port has unknown index, ignored") << endmsg;
714 if ((prop = child->property("value")) != 0) {
715 value = prop->value().c_str();
717 warning << _("LV2: port has no value, ignored") << endmsg;
721 set_parameter(port_id, atof(value));
724 if ((prop = node.property("state-file")) != 0) {
725 std::string state_path = Glib::build_filename(_session.plugins_dir(),
728 // Get LV2 Persist extension data from plugin instance
729 LV2_Persist* persist = (LV2_Persist*)slv2_instance_get_extension_data(
730 _instance, "http://lv2plug.in/ns/ext/persist");
732 cout << "Loading LV2 state from " << state_path << endl;
733 RDFF file = rdff_open(state_path.c_str(), false);
735 PersistState state(_uri_map);
737 // Load file into state object
738 RDFFChunk* chunk = (RDFFChunk*)malloc(sizeof(RDFFChunk));
740 while (!rdff_read_chunk(file, &chunk)) {
741 if (rdff_chunk_is_uri(chunk)) {
742 RDFFURIChunk* body = (RDFFURIChunk*)chunk->data;
743 state.add_uri(body->id, body->uri);
744 } else if (rdff_chunk_is_triple(chunk)) {
745 RDFFTripleChunk* body = (RDFFTripleChunk*)chunk->data;
746 state.add_value(body->predicate,
750 LV2_PERSIST_IS_POD | LV2_PERSIST_IS_PORTABLE);
755 persist->restore(_instance->lv2_handle,
756 &LV2Plugin::lv2_persist_retrieve_callback,
760 warning << string_compose(
761 _("Plugin \"%1\% failed to return LV2 persist data"),
766 latency_compute_run();
768 return Plugin::set_state(node, version);
772 LV2Plugin::get_parameter_descriptor(uint32_t which, ParameterDescriptor& desc) const
774 SLV2Port port = slv2_plugin_get_port_by_index(_plugin, which);
776 SLV2Value def, min, max;
777 slv2_port_get_range(_plugin, port, &def, &min, &max);
779 desc.integer_step = slv2_port_has_property(_plugin, port, _world.integer);
780 desc.toggled = slv2_port_has_property(_plugin, port, _world.toggled);
781 desc.logarithmic = slv2_port_has_property(_plugin, port, _world.logarithmic);
782 desc.sr_dependent = slv2_port_has_property(_plugin, port, _world.srate);
783 desc.label = slv2_value_as_string(slv2_port_get_name(_plugin, port));
784 desc.lower = min ? slv2_value_as_float(min) : 0.0f;
785 desc.upper = max ? slv2_value_as_float(max) : 1.0f;
786 desc.min_unbound = false; // TODO: LV2 extension required
787 desc.max_unbound = false; // TODO: LV2 extension required
789 if (desc.integer_step) {
791 desc.smallstep = 0.1;
792 desc.largestep = 10.0;
794 const float delta = desc.upper - desc.lower;
795 desc.step = delta / 1000.0f;
796 desc.smallstep = delta / 10000.0f;
797 desc.largestep = delta / 10.0f;
800 slv2_value_free(def);
801 slv2_value_free(min);
802 slv2_value_free(max);
808 LV2Plugin::describe_parameter(Evoral::Parameter which)
810 if (( which.type() == PluginAutomation) && ( which.id() < parameter_count()) ) {
811 SLV2Value name = slv2_port_get_name(_plugin,
812 slv2_plugin_get_port_by_index(_plugin, which.id()));
813 string ret(slv2_value_as_string(name));
814 slv2_value_free(name);
822 LV2Plugin::signal_latency() const
824 if (_latency_control_port) {
825 return (framecnt_t)floor(*_latency_control_port);
831 set<Evoral::Parameter>
832 LV2Plugin::automatable() const
834 set<Evoral::Parameter> ret;
836 for (uint32_t i = 0; i < parameter_count(); ++i) {
837 if (parameter_is_input(i) && parameter_is_control(i)) {
838 ret.insert(ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
846 LV2Plugin::activate()
848 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 activate\n", name()));
850 if (!_was_activated) {
851 slv2_instance_activate(_instance);
852 _was_activated = true;
857 LV2Plugin::deactivate()
859 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 deactivate\n", name()));
861 if (_was_activated) {
862 slv2_instance_deactivate(_instance);
863 _was_activated = false;
870 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 cleanup\n", name()));
874 slv2_instance_free(_instance);
879 LV2Plugin::connect_and_run(BufferSet& bufs,
880 ChanMapping in_map, ChanMapping out_map,
881 pframes_t nframes, framecnt_t offset)
883 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 run %2 offset %3\n", name(), nframes, offset));
884 Plugin::connect_and_run(bufs, in_map, out_map, nframes, offset);
886 cycles_t then = get_cycles();
888 uint32_t audio_in_index = 0;
889 uint32_t audio_out_index = 0;
890 uint32_t midi_in_index = 0;
891 uint32_t midi_out_index = 0;
892 for (uint32_t port_index = 0; port_index < parameter_count(); ++port_index) {
893 if (parameter_is_audio(port_index)) {
894 if (parameter_is_input(port_index)) {
895 const uint32_t buf_index = in_map.get(DataType::AUDIO, audio_in_index++);
896 slv2_instance_connect_port(_instance, port_index,
897 bufs.get_audio(buf_index).data(offset));
898 } else if (parameter_is_output(port_index)) {
899 const uint32_t buf_index = out_map.get(DataType::AUDIO, audio_out_index++);
900 //cerr << port_index << " : " << " AUDIO OUT " << buf_index << endl;
901 slv2_instance_connect_port(_instance, port_index,
902 bufs.get_audio(buf_index).data(offset));
904 } else if (parameter_is_midi(port_index)) {
905 if (parameter_is_input(port_index)) {
906 const uint32_t buf_index = in_map.get(DataType::MIDI, midi_in_index++);
907 slv2_instance_connect_port(_instance, port_index,
908 bufs.get_lv2_midi(true, buf_index).data());
909 } else if (parameter_is_output(port_index)) {
910 const uint32_t buf_index = out_map.get(DataType::MIDI, midi_out_index++);
911 slv2_instance_connect_port(_instance, port_index,
912 bufs.get_lv2_midi(false, buf_index).data());
914 } else if (!parameter_is_control(port_index)) {
915 // Optional port (it'd better be if we've made it this far...)
916 slv2_instance_connect_port(_instance, port_index, NULL);
923 for (uint32_t port_index = 0; port_index < parameter_count(); ++port_index) {
924 if (parameter_is_midi(port_index) && parameter_is_output(port_index)) {
925 const uint32_t buf_index = out_map.get(DataType::MIDI, midi_out_index++);
926 bufs.flush_lv2_midi(true, buf_index);
930 cycles_t now = get_cycles();
931 set_cycles((uint32_t)(now - then));
937 LV2Plugin::parameter_is_control(uint32_t param) const
939 SLV2Port port = slv2_plugin_get_port_by_index(_plugin, param);
940 return slv2_port_is_a(_plugin, port, _world.control_class);
944 LV2Plugin::parameter_is_audio(uint32_t param) const
946 SLV2Port port = slv2_plugin_get_port_by_index(_plugin, param);
947 return slv2_port_is_a(_plugin, port, _world.audio_class);
951 LV2Plugin::parameter_is_midi(uint32_t param) const
953 SLV2Port port = slv2_plugin_get_port_by_index(_plugin, param);
954 return slv2_port_is_a(_plugin, port, _world.event_class);
955 // && slv2_port_supports_event(_plugin, port, _world.midi_class);
959 LV2Plugin::parameter_is_output(uint32_t param) const
961 SLV2Port port = slv2_plugin_get_port_by_index(_plugin, param);
962 return slv2_port_is_a(_plugin, port, _world.output_class);
966 LV2Plugin::parameter_is_input(uint32_t param) const
968 SLV2Port port = slv2_plugin_get_port_by_index(_plugin, param);
969 return slv2_port_is_a(_plugin, port, _world.input_class);
973 LV2Plugin::print_parameter(uint32_t param, char* buf, uint32_t len) const
976 if (param < parameter_count()) {
977 snprintf(buf, len, "%.3f", get_parameter(param));
985 LV2Plugin::run(pframes_t nframes)
987 for (uint32_t i = 0; i < parameter_count(); ++i) {
988 if (parameter_is_control(i) && parameter_is_input(i)) {
989 _control_data[i] = _shadow_data[i];
993 slv2_instance_run(_instance, nframes);
997 LV2Plugin::latency_compute_run()
999 if (!_latency_control_port) {
1003 // Run the plugin so that it can set its latency parameter
1007 uint32_t port_index = 0;
1008 uint32_t in_index = 0;
1009 uint32_t out_index = 0;
1011 const framecnt_t bufsize = 1024;
1012 float buffer[bufsize];
1014 memset(buffer, 0, sizeof(float) * bufsize);
1016 // FIXME: Ensure plugins can handle in-place processing
1020 while (port_index < parameter_count()) {
1021 if (parameter_is_audio(port_index)) {
1022 if (parameter_is_input(port_index)) {
1023 slv2_instance_connect_port(_instance, port_index, buffer);
1025 } else if (parameter_is_output(port_index)) {
1026 slv2_instance_connect_port(_instance, port_index, buffer);
1037 LV2World::LV2World()
1038 : world(slv2_world_new())
1040 slv2_world_load_all(world);
1041 input_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_INPUT);
1042 output_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_OUTPUT);
1043 control_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_CONTROL);
1044 audio_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_AUDIO);
1045 event_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_EVENT);
1046 midi_class = slv2_value_new_uri(world, SLV2_EVENT_CLASS_MIDI);
1047 in_place_broken = slv2_value_new_uri(world, SLV2_NAMESPACE_LV2 "inPlaceBroken");
1048 integer = slv2_value_new_uri(world, SLV2_NAMESPACE_LV2 "integer");
1049 toggled = slv2_value_new_uri(world, SLV2_NAMESPACE_LV2 "toggled");
1050 srate = slv2_value_new_uri(world, SLV2_NAMESPACE_LV2 "sampleRate");
1051 gtk_gui = slv2_value_new_uri(world, NS_UI "GtkUI");
1052 external_gui = slv2_value_new_uri(world, NS_UI "external");
1053 logarithmic = slv2_value_new_uri(world, "http://lv2plug.in/ns/dev/extportinfo#logarithmic");
1056 LV2World::~LV2World()
1058 slv2_value_free(input_class);
1059 slv2_value_free(output_class);
1060 slv2_value_free(control_class);
1061 slv2_value_free(audio_class);
1062 slv2_value_free(event_class);
1063 slv2_value_free(midi_class);
1064 slv2_value_free(in_place_broken);
1067 LV2PluginInfo::LV2PluginInfo (void* lv2_world, void* slv2_plugin)
1068 : _lv2_world(lv2_world)
1069 , _slv2_plugin(slv2_plugin)
1074 LV2PluginInfo::~LV2PluginInfo()
1078 LV2PluginInfo::load(Session& session)
1083 plugin.reset(new LV2Plugin(session.engine(), session,
1084 *(LV2World*)_lv2_world, (SLV2Plugin)_slv2_plugin,
1085 session.frame_rate()));
1087 plugin->set_info(PluginInfoPtr(new LV2PluginInfo(*this)));
1089 } catch (failed_constructor& err) {
1090 return PluginPtr((Plugin*)0);
1097 LV2PluginInfo::discover(void* lv2_world)
1099 PluginInfoList* plugs = new PluginInfoList;
1100 LV2World* world = (LV2World*)lv2_world;
1101 SLV2Plugins plugins = slv2_world_get_all_plugins(world->world);
1103 cerr << "LV2: Discovering " << slv2_plugins_size(plugins) << " plugins" << endl;
1105 for (unsigned i = 0; i < slv2_plugins_size(plugins); ++i) {
1106 SLV2Plugin p = slv2_plugins_get_at(plugins, i);
1107 LV2PluginInfoPtr info(new LV2PluginInfo(lv2_world, p));
1109 SLV2Value name = slv2_plugin_get_name(p);
1112 cerr << "LV2: invalid plugin\n";
1118 info->name = string(slv2_value_as_string(name));
1119 slv2_value_free(name);
1121 SLV2PluginClass pclass = slv2_plugin_get_class(p);
1122 SLV2Value label = slv2_plugin_class_get_label(pclass);
1123 info->category = slv2_value_as_string(label);
1125 SLV2Value author_name = slv2_plugin_get_author_name(p);
1126 info->creator = author_name ? string(slv2_value_as_string(author_name)) : "Unknown";
1127 slv2_value_free(author_name);
1129 info->path = "/NOPATH"; // Meaningless for LV2
1131 info->n_inputs.set_audio(
1132 slv2_plugin_get_num_ports_of_class(
1133 p, world->input_class, world->audio_class, NULL));
1134 info->n_inputs.set_midi(
1135 slv2_plugin_get_num_ports_of_class(
1136 p, world->input_class, world->event_class, NULL));
1138 info->n_outputs.set_audio(
1139 slv2_plugin_get_num_ports_of_class(
1140 p, world->output_class, world->audio_class, NULL));
1141 info->n_outputs.set_midi(
1142 slv2_plugin_get_num_ports_of_class(
1143 p, world->output_class, world->event_class, NULL));
1145 info->unique_id = slv2_value_as_uri(slv2_plugin_get_uri(p));
1146 info->index = 0; // Meaningless for LV2
1148 plugs->push_back(info);
1151 cerr << "Done LV2 discovery" << endl;