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 "pbd/gstdio_compat.h"
29 #include <glib/gprintf.h>
32 #include <boost/utility.hpp>
34 #include "pbd/file_utils.h"
35 #include "pbd/stl_delete.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/search_paths.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"
69 #include "lv2/lv2plug.in/ns/extensions/units/units.h"
70 #include "lv2/lv2plug.in/ns/ext/patch/patch.h"
72 #include "lv2/lv2plug.in/ns/ext/buf-size/buf-size.h"
73 #include "lv2/lv2plug.in/ns/ext/options/options.h"
76 #include "lv2_evbuf.h"
79 #include <suil/suil.h>
82 // Compatibility for old LV2
83 #ifndef LV2_ATOM_CONTENTS_CONST
84 #define LV2_ATOM_CONTENTS_CONST(type, atom) \
85 ((const void*)((const uint8_t*)(atom) + sizeof(type)))
87 #ifndef LV2_ATOM_BODY_CONST
88 #define LV2_ATOM_BODY_CONST(atom) LV2_ATOM_CONTENTS_CONST(LV2_Atom, atom)
90 #ifndef LV2_PATCH__property
91 #define LV2_PATCH__property LV2_PATCH_PREFIX "property"
93 #ifndef LV2_PATCH__value
94 #define LV2_PATCH__value LV2_PATCH_PREFIX "value"
96 #ifndef LV2_PATCH__writable
97 #define LV2_PATCH__writable LV2_PATCH_PREFIX "writable"
100 /** The number of MIDI buffers that will fit in a UI/worker comm buffer.
101 This needs to be roughly the number of cycles the UI will get around to
102 actually processing the traffic. Lower values are flakier but save memory.
104 static const size_t NBUFS = 4;
107 using namespace ARDOUR;
110 class LV2World : boost::noncopyable {
115 void load_bundled_plugins(bool verbose=false);
119 LilvNode* atom_AtomPort;
120 LilvNode* atom_Chunk;
121 LilvNode* atom_Sequence;
122 LilvNode* atom_bufferType;
123 LilvNode* atom_eventTransfer;
124 LilvNode* atom_supports;
125 LilvNode* ev_EventPort;
126 LilvNode* ext_logarithmic;
127 LilvNode* ext_notOnGUI;
128 LilvNode* lv2_AudioPort;
129 LilvNode* lv2_ControlPort;
130 LilvNode* lv2_InputPort;
131 LilvNode* lv2_OutputPort;
132 LilvNode* lv2_enumeration;
133 LilvNode* lv2_freewheeling;
134 LilvNode* lv2_inPlaceBroken;
135 LilvNode* lv2_integer;
136 LilvNode* lv2_default;
137 LilvNode* lv2_minimum;
138 LilvNode* lv2_maximum;
139 LilvNode* lv2_reportsLatency;
140 LilvNode* lv2_sampleRate;
141 LilvNode* lv2_toggled;
142 LilvNode* midi_MidiEvent;
143 LilvNode* rdfs_comment;
144 LilvNode* rdfs_label;
145 LilvNode* rdfs_range;
146 LilvNode* rsz_minimumSize;
147 LilvNode* time_Position;
149 LilvNode* ui_external;
150 LilvNode* ui_externalkx;
153 LilvNode* units_unit;
154 LilvNode* units_render;
155 LilvNode* units_midiNote;
156 LilvNode* patch_writable;
157 LilvNode* patch_Message;
158 LilvNode* lv2_noSampleAccurateCtrl;
159 #ifdef HAVE_LV2_1_2_0
160 LilvNode* bufz_powerOf2BlockLength;
161 LilvNode* bufz_fixedBlockLength;
162 LilvNode* bufz_nominalBlockLength;
166 bool _bundle_checked;
169 static LV2World _world;
171 /* worker extension */
173 /** Called by the plugin to schedule non-RT work. */
174 static LV2_Worker_Status
175 work_schedule(LV2_Worker_Schedule_Handle handle,
179 LV2Plugin* plugin = (LV2Plugin*)handle;
180 if (plugin->session().engine().freewheeling()) {
181 // Freewheeling, do the work immediately in this (audio) thread
182 return (LV2_Worker_Status)plugin->work(size, data);
184 // Enqueue message for the worker thread
185 return plugin->worker()->schedule(size, data) ?
186 LV2_WORKER_SUCCESS : LV2_WORKER_ERR_UNKNOWN;
190 /** Called by the plugin to respond to non-RT work. */
191 static LV2_Worker_Status
192 work_respond(LV2_Worker_Respond_Handle handle,
196 LV2Plugin* plugin = (LV2Plugin*)handle;
197 if (plugin->session().engine().freewheeling()) {
198 // Freewheeling, respond immediately in this (audio) thread
199 return (LV2_Worker_Status)plugin->work_response(size, data);
201 // Enqueue response for the worker
202 return plugin->worker()->respond(size, data) ?
203 LV2_WORKER_SUCCESS : LV2_WORKER_ERR_UNKNOWN;
210 log_vprintf(LV2_Log_Handle /*handle*/,
216 const int ret = g_vasprintf(&str, fmt, args);
217 if (type == URIMap::instance().urids.log_Error) {
218 error << str << endmsg;
219 } else if (type == URIMap::instance().urids.log_Warning) {
220 warning << str << endmsg;
221 } else if (type == URIMap::instance().urids.log_Note) {
222 info << str << endmsg;
224 // TODO: Toggleable log:Trace message support
229 log_printf(LV2_Log_Handle handle,
231 const char* fmt, ...)
235 const int ret = log_vprintf(handle, type, fmt, args);
240 struct LV2Plugin::Impl {
241 Impl() : plugin(0), ui(0), ui_type(0), name(0), author(0), instance(0)
243 #ifdef HAVE_LV2_1_2_0
248 #ifdef HAVE_LV2_1_2_0
253 /** Find the LV2 input port with the given designation.
254 * If found, bufptrs[port_index] will be set to bufptr.
256 const LilvPort* designated_input (const char* uri, void** bufptrs[], void** bufptr);
258 const LilvPlugin* plugin;
260 const LilvNode* ui_type;
263 LilvInstance* instance;
264 const LV2_Worker_Interface* work_iface;
265 #ifdef HAVE_LV2_1_2_0
266 const LV2_Options_Interface* opts_iface;
269 LV2_Atom_Forge forge;
270 LV2_Atom_Forge ui_forge;
271 int32_t block_length;
272 #ifdef HAVE_LV2_1_2_0
273 LV2_Options_Option* options;
277 LV2Plugin::LV2Plugin (AudioEngine& engine,
279 const void* c_plugin,
281 : Plugin (engine, session)
287 , _patch_port_in_index((uint32_t)-1)
288 , _patch_port_out_index((uint32_t)-1)
289 , _uri_map(URIMap::instance())
290 , _no_sample_accurate_ctrl (false)
292 init(c_plugin, rate);
295 LV2Plugin::LV2Plugin (const LV2Plugin& other)
301 , _insert_id(other._insert_id)
302 , _patch_port_in_index((uint32_t)-1)
303 , _patch_port_out_index((uint32_t)-1)
304 , _uri_map(URIMap::instance())
305 , _no_sample_accurate_ctrl (false)
307 init(other._impl->plugin, other._sample_rate);
309 for (uint32_t i = 0; i < parameter_count(); ++i) {
310 _control_data[i] = other._shadow_data[i];
311 _shadow_data[i] = other._shadow_data[i];
316 LV2Plugin::init(const void* c_plugin, framecnt_t rate)
318 DEBUG_TRACE(DEBUG::LV2, "init\n");
320 _impl->plugin = (const LilvPlugin*)c_plugin;
322 _impl->ui_type = NULL;
327 _atom_ev_buffers = 0;
329 _bpm_control_port = 0;
330 _freewheel_control_port = 0;
331 _latency_control_port = 0;
332 _next_cycle_start = std::numeric_limits<framepos_t>::max();
333 _next_cycle_speed = 1.0;
334 _seq_size = _engine.raw_buffer_size(DataType::MIDI);
336 _was_activated = false;
337 _has_state_interface = false;
338 _impl->block_length = _session.get_block_size();
340 _instance_access_feature.URI = "http://lv2plug.in/ns/ext/instance-access";
341 _data_access_feature.URI = "http://lv2plug.in/ns/ext/data-access";
342 _make_path_feature.URI = LV2_STATE__makePath;
343 _log_feature.URI = LV2_LOG__log;
344 _work_schedule_feature.URI = LV2_WORKER__schedule;
345 _work_schedule_feature.data = NULL;
346 _def_state_feature.URI = LV2_STATE_PREFIX "loadDefaultState"; // Post LV2-1.2.0
347 _def_state_feature.data = NULL;
349 const LilvPlugin* plugin = _impl->plugin;
351 LilvNode* state_iface_uri = lilv_new_uri(_world.world, LV2_STATE__interface);
352 LilvNode* state_uri = lilv_new_uri(_world.world, LV2_STATE_URI);
353 _has_state_interface =
354 // What plugins should have (lv2:extensionData state:Interface)
355 lilv_plugin_has_extension_data(plugin, state_iface_uri)
356 // What some outdated/incorrect ones have
357 || lilv_plugin_has_feature(plugin, state_uri);
358 lilv_node_free(state_uri);
359 lilv_node_free(state_iface_uri);
361 _features = (LV2_Feature**)calloc(11, sizeof(LV2_Feature*));
362 _features[0] = &_instance_access_feature;
363 _features[1] = &_data_access_feature;
364 _features[2] = &_make_path_feature;
365 _features[3] = _uri_map.uri_map_feature();
366 _features[4] = _uri_map.urid_map_feature();
367 _features[5] = _uri_map.urid_unmap_feature();
368 _features[6] = &_log_feature;
370 unsigned n_features = 7;
371 #ifdef HAVE_LV2_1_2_0
372 _features[n_features++] = &_def_state_feature;
375 lv2_atom_forge_init(&_impl->forge, _uri_map.urid_map());
376 lv2_atom_forge_init(&_impl->ui_forge, _uri_map.urid_map());
378 #ifdef HAVE_LV2_1_2_0
379 LV2_URID atom_Int = _uri_map.uri_to_id(LV2_ATOM__Int);
380 static const int32_t _min_block_length = 1; // may happen during split-cycles
381 static const int32_t _max_block_length = 8192; // max possible (with all engines and during export)
382 /* Consider updating max-block-size whenever the buffersize changes.
383 * It requires re-instantiating the plugin (which is a non-realtime operation),
384 * so it should be done lightly and only for plugins that require it.
386 * given that the block-size can change at any time (split-cycles) ardour currently
387 * does not support plugins that require bufz_fixedBlockLength.
389 LV2_Options_Option options[] = {
390 { LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id(LV2_BUF_SIZE__minBlockLength),
391 sizeof(int32_t), atom_Int, &_min_block_length },
392 { LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id(LV2_BUF_SIZE__maxBlockLength),
393 sizeof(int32_t), atom_Int, &_max_block_length },
394 { LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id(LV2_BUF_SIZE__sequenceSize),
395 sizeof(int32_t), atom_Int, &_seq_size },
396 { LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id("http://lv2plug.in/ns/ext/buf-size#nominalBlockLength"),
397 sizeof(int32_t), atom_Int, &_impl->block_length },
398 { LV2_OPTIONS_INSTANCE, 0, 0, 0, 0, NULL }
401 _impl->options = (LV2_Options_Option*) malloc (sizeof (options));
402 memcpy ((void*) _impl->options, (void*) options, sizeof (options));
404 _options_feature.URI = LV2_OPTIONS__options;
405 _options_feature.data = _impl->options;
406 _features[n_features++] = &_options_feature;
409 LV2_State_Make_Path* make_path = (LV2_State_Make_Path*)malloc(
410 sizeof(LV2_State_Make_Path));
411 make_path->handle = this;
412 make_path->path = &lv2_state_make_path;
413 _make_path_feature.data = make_path;
415 LV2_Log_Log* log = (LV2_Log_Log*)malloc(sizeof(LV2_Log_Log));
417 log->printf = &log_printf;
418 log->vprintf = &log_vprintf;
419 _log_feature.data = log;
421 LilvNode* worker_schedule = lilv_new_uri(_world.world, LV2_WORKER__schedule);
422 if (lilv_plugin_has_feature(plugin, worker_schedule)) {
423 LV2_Worker_Schedule* schedule = (LV2_Worker_Schedule*)malloc(
424 sizeof(LV2_Worker_Schedule));
425 size_t buf_size = _session.engine().raw_buffer_size(DataType::MIDI) * NBUFS;
426 _worker = new Worker(this, buf_size);
427 schedule->handle = this;
428 schedule->schedule_work = work_schedule;
429 _work_schedule_feature.data = schedule;
430 _features[n_features++] = &_work_schedule_feature;
432 lilv_node_free(worker_schedule);
434 _impl->instance = lilv_plugin_instantiate(plugin, rate, _features);
435 _impl->name = lilv_plugin_get_name(plugin);
436 _impl->author = lilv_plugin_get_author_name(plugin);
438 if (_impl->instance == 0) {
439 error << _("LV2: Failed to instantiate plugin ") << uri() << endmsg;
440 throw failed_constructor();
443 _instance_access_feature.data = (void*)_impl->instance->lv2_handle;
444 _data_access_extension_data.extension_data = _impl->instance->lv2_descriptor->extension_data;
445 _data_access_feature.data = &_data_access_extension_data;
447 LilvNode* worker_iface_uri = lilv_new_uri(_world.world, LV2_WORKER__interface);
448 if (lilv_plugin_has_extension_data(plugin, worker_iface_uri)) {
449 _impl->work_iface = (const LV2_Worker_Interface*)extension_data(
450 LV2_WORKER__interface);
452 lilv_node_free(worker_iface_uri);
455 #ifdef HAVE_LV2_1_2_0
456 LilvNode* options_iface_uri = lilv_new_uri(_world.world, LV2_OPTIONS__interface);
457 if (lilv_plugin_has_extension_data(plugin, options_iface_uri)) {
458 _impl->opts_iface = (const LV2_Options_Interface*)extension_data(
459 LV2_OPTIONS__interface);
461 lilv_node_free(options_iface_uri);
464 if (lilv_plugin_has_feature(plugin, _world.lv2_inPlaceBroken)) {
465 error << string_compose(
466 _("LV2: \"%1\" cannot be used, since it cannot do inplace processing."),
467 lilv_node_as_string(_impl->name)) << endmsg;
468 lilv_node_free(_impl->name);
469 lilv_node_free(_impl->author);
470 throw failed_constructor();
473 #ifdef HAVE_LV2_1_2_0
474 LilvNodes *required_features = lilv_plugin_get_required_features (plugin);
475 if (lilv_nodes_contains (required_features, _world.bufz_powerOf2BlockLength) ||
476 lilv_nodes_contains (required_features, _world.bufz_fixedBlockLength)
478 error << string_compose(
479 _("LV2: \"%1\" buffer-size requirements cannot be satisfied."),
480 lilv_node_as_string(_impl->name)) << endmsg;
481 lilv_node_free(_impl->name);
482 lilv_node_free(_impl->author);
483 lilv_nodes_free(required_features);
484 throw failed_constructor();
486 lilv_nodes_free(required_features);
488 LilvNodes* optional_features = lilv_plugin_get_optional_features (plugin);
489 if (lilv_nodes_contains (optional_features, _world.lv2_noSampleAccurateCtrl)) {
490 _no_sample_accurate_ctrl = true;
492 lilv_nodes_free(optional_features);
495 #ifdef HAVE_LILV_0_16_0
496 // Load default state
497 LilvState* state = lilv_state_new_from_world(
498 _world.world, _uri_map.urid_map(), lilv_plugin_get_uri(_impl->plugin));
499 if (state && _has_state_interface) {
500 lilv_state_restore(state, _impl->instance, NULL, NULL, 0, NULL);
502 lilv_state_free(state);
507 const uint32_t num_ports = this->num_ports();
508 for (uint32_t i = 0; i < num_ports; ++i) {
509 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, i);
511 size_t minimumSize = 0;
513 if (lilv_port_is_a(_impl->plugin, port, _world.lv2_OutputPort)) {
514 flags |= PORT_OUTPUT;
515 } else if (lilv_port_is_a(_impl->plugin, port, _world.lv2_InputPort)) {
518 error << string_compose(
519 "LV2: \"%1\" port %2 is neither input nor output",
520 lilv_node_as_string(_impl->name), i) << endmsg;
521 throw failed_constructor();
524 if (lilv_port_is_a(_impl->plugin, port, _world.lv2_ControlPort)) {
525 flags |= PORT_CONTROL;
526 } else if (lilv_port_is_a(_impl->plugin, port, _world.lv2_AudioPort)) {
528 } else if (lilv_port_is_a(_impl->plugin, port, _world.ev_EventPort)) {
530 flags |= PORT_MIDI; // We assume old event API ports are for MIDI
531 } else if (lilv_port_is_a(_impl->plugin, port, _world.atom_AtomPort)) {
532 LilvNodes* buffer_types = lilv_port_get_value(
533 _impl->plugin, port, _world.atom_bufferType);
534 LilvNodes* atom_supports = lilv_port_get_value(
535 _impl->plugin, port, _world.atom_supports);
537 if (lilv_nodes_contains(buffer_types, _world.atom_Sequence)) {
538 flags |= PORT_SEQUENCE;
539 if (lilv_nodes_contains(atom_supports, _world.midi_MidiEvent)) {
542 if (lilv_nodes_contains(atom_supports, _world.time_Position)) {
543 flags |= PORT_POSITION;
545 if (lilv_nodes_contains(atom_supports, _world.patch_Message)) {
546 flags |= PORT_PATCHMSG;
547 if (flags & PORT_INPUT) {
548 _patch_port_in_index = i;
550 _patch_port_out_index = i;
554 LilvNodes* min_size_v = lilv_port_get_value(_impl->plugin, port, _world.rsz_minimumSize);
555 LilvNode* min_size = min_size_v ? lilv_nodes_get_first(min_size_v) : NULL;
556 if (min_size && lilv_node_is_int(min_size)) {
557 minimumSize = lilv_node_as_int(min_size);
559 lilv_nodes_free(min_size_v);
560 lilv_nodes_free(buffer_types);
561 lilv_nodes_free(atom_supports);
563 error << string_compose(
564 "LV2: \"%1\" port %2 has no known data type",
565 lilv_node_as_string(_impl->name), i) << endmsg;
566 throw failed_constructor();
569 _port_flags.push_back(flags);
570 _port_minimumSize.push_back(minimumSize);
573 _control_data = new float[num_ports];
574 _shadow_data = new float[num_ports];
575 _defaults = new float[num_ports];
576 _ev_buffers = new LV2_Evbuf*[num_ports];
577 memset(_ev_buffers, 0, sizeof(LV2_Evbuf*) * num_ports);
579 const bool latent = lilv_plugin_has_latency(plugin);
580 const uint32_t latency_index = (latent)
581 ? lilv_plugin_get_latency_port_index(plugin)
584 // Build an array of pointers to special parameter buffers
585 void*** params = new void**[num_ports];
586 for (uint32_t i = 0; i < num_ports; ++i) {
589 _impl->designated_input (LV2_TIME__beatsPerMinute, params, (void**)&_bpm_control_port);
590 _impl->designated_input (LV2_CORE__freeWheeling, params, (void**)&_freewheel_control_port);
592 for (uint32_t i = 0; i < num_ports; ++i) {
593 const LilvPort* port = lilv_plugin_get_port_by_index(plugin, i);
594 const LilvNode* sym = lilv_port_get_symbol(plugin, port);
596 // Store index in map so we can look up index by symbol
597 _port_indices.insert(std::make_pair(lilv_node_as_string(sym), i));
599 // Get range and default value if applicable
600 if (parameter_is_control(i)) {
602 lilv_port_get_range(plugin, port, &def, NULL, NULL);
603 _defaults[i] = def ? lilv_node_as_float(def) : 0.0f;
604 if (lilv_port_has_property (plugin, port, _world.lv2_sampleRate)) {
605 _defaults[i] *= _session.frame_rate ();
609 lilv_instance_connect_port(_impl->instance, i, &_control_data[i]);
611 if (latent && i == latency_index) {
612 _latency_control_port = &_control_data[i];
613 *_latency_control_port = 0;
616 if (parameter_is_input(i)) {
617 _shadow_data[i] = default_value(i);
619 *params[i] = (void*)&_shadow_data[i];
629 LilvUIs* uis = lilv_plugin_get_uis(plugin);
630 if (lilv_uis_size(uis) > 0) {
632 // Look for embeddable UI
633 LILV_FOREACH(uis, u, uis) {
634 const LilvUI* this_ui = lilv_uis_get(uis, u);
635 const LilvNode* this_ui_type = NULL;
636 if (lilv_ui_is_supported(this_ui,
640 // TODO: Multiple UI support
642 _impl->ui_type = this_ui_type;
647 // Look for Gtk native UI
648 LILV_FOREACH(uis, i, uis) {
649 const LilvUI* ui = lilv_uis_get(uis, i);
650 if (lilv_ui_is_a(ui, _world.ui_GtkUI)) {
652 _impl->ui_type = _world.ui_GtkUI;
658 // If Gtk UI is not available, try to find external UI
660 LILV_FOREACH(uis, i, uis) {
661 const LilvUI* ui = lilv_uis_get(uis, i);
662 if (lilv_ui_is_a(ui, _world.ui_externalkx)) {
664 _impl->ui_type = _world.ui_external;
667 if (lilv_ui_is_a(ui, _world.ui_external)) {
669 _impl->ui_type = _world.ui_external;
675 load_supported_properties(_property_descriptors);
676 allocate_atom_event_buffers();
677 latency_compute_run();
681 LV2Plugin::set_block_size (pframes_t nframes)
683 #ifdef HAVE_LV2_1_2_0
684 if (_impl->opts_iface) {
685 LV2_URID atom_Int = _uri_map.uri_to_id(LV2_ATOM__Int);
686 _impl->block_length = nframes;
687 LV2_Options_Option block_size_option = {
688 LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id ("http://lv2plug.in/ns/ext/buf-size#nominalBlockLength"),
689 sizeof(int32_t), atom_Int, (void*)&_impl->block_length
691 _impl->opts_iface->set (_impl->instance->lv2_handle, &block_size_option);
698 LV2Plugin::requires_fixed_sized_buffers () const
700 /* This controls if Ardour will split the plugin's run()
701 * on automation events in order to pass sample-accurate automation
702 * via standard control-ports.
704 * When returning true Ardour will *not* sub-divide the process-cycle.
705 * Automation events that happen between cycle-start and cycle-end will be
706 * ignored (ctrl values are interpolated to cycle-start).
707 * NB. Atom Sequences are still sample accurate.
709 * Note: This does not guarantee a fixed block-size.
710 * e.g The process cycle may be split when looping, also
711 * the period-size may change any time: see set_block_size()
713 return _no_sample_accurate_ctrl;
716 LV2Plugin::~LV2Plugin ()
718 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 destroy\n", name()));
723 lilv_instance_free(_impl->instance);
724 lilv_state_free(_impl->state);
725 lilv_node_free(_impl->name);
726 lilv_node_free(_impl->author);
727 #ifdef HAVE_LV2_1_2_0
728 free(_impl->options);
732 free(_make_path_feature.data);
733 free(_work_schedule_feature.data);
739 if (_atom_ev_buffers) {
740 LV2_Evbuf** b = _atom_ev_buffers;
745 free(_atom_ev_buffers);
748 delete [] _control_data;
749 delete [] _shadow_data;
751 delete [] _ev_buffers;
755 LV2Plugin::is_external_ui() const
760 return lilv_ui_is_a(_impl->ui, _world.ui_external) || lilv_ui_is_a(_impl->ui, _world.ui_externalkx);
764 LV2Plugin::is_external_kx() const
769 return lilv_ui_is_a(_impl->ui, _world.ui_externalkx);
773 LV2Plugin::ui_is_resizable () const
775 const LilvNode* s = lilv_ui_get_uri(_impl->ui);
776 LilvNode* p = lilv_new_uri(_world.world, LV2_CORE__optionalFeature);
777 LilvNode* fs = lilv_new_uri(_world.world, LV2_UI__fixedSize);
778 LilvNode* nrs = lilv_new_uri(_world.world, LV2_UI__noUserResize);
780 LilvNodes* fs_matches = lilv_world_find_nodes(_world.world, s, p, fs);
781 LilvNodes* nrs_matches = lilv_world_find_nodes(_world.world, s, p, nrs);
783 lilv_nodes_free(nrs_matches);
784 lilv_nodes_free(fs_matches);
789 return !fs_matches && !nrs_matches;
793 LV2Plugin::unique_id() const
795 return lilv_node_as_uri(lilv_plugin_get_uri(_impl->plugin));
799 LV2Plugin::uri() const
801 return lilv_node_as_uri(lilv_plugin_get_uri(_impl->plugin));
805 LV2Plugin::label() const
807 return lilv_node_as_string(_impl->name);
811 LV2Plugin::name() const
813 return lilv_node_as_string(_impl->name);
817 LV2Plugin::maker() const
819 return _impl->author ? lilv_node_as_string (_impl->author) : "Unknown";
823 LV2Plugin::num_ports() const
825 return lilv_plugin_get_num_ports(_impl->plugin);
829 LV2Plugin::parameter_count() const
831 return lilv_plugin_get_num_ports(_impl->plugin);
835 LV2Plugin::default_value(uint32_t port)
837 return _defaults[port];
841 LV2Plugin::port_symbol(uint32_t index) const
843 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, index);
845 error << name() << ": Invalid port index " << index << endmsg;
848 const LilvNode* sym = lilv_port_get_symbol(_impl->plugin, port);
849 return lilv_node_as_string(sym);
853 LV2Plugin::port_index (const char* symbol) const
855 const map<string, uint32_t>::const_iterator i = _port_indices.find(symbol);
856 if (i != _port_indices.end()) {
859 warning << string_compose(_("LV2: Unknown port %1"), symbol) << endmsg;
865 LV2Plugin::set_parameter(uint32_t which, float val)
867 DEBUG_TRACE(DEBUG::LV2, string_compose(
868 "%1 set parameter %2 to %3\n", name(), which, val));
870 if (which < lilv_plugin_get_num_ports(_impl->plugin)) {
871 if (get_parameter (which) == val) {
875 _shadow_data[which] = val;
877 warning << string_compose(
878 _("Illegal parameter number used with plugin \"%1\". "
879 "This is a bug in either %2 or the LV2 plugin <%3>"),
880 name(), PROGRAM_NAME, unique_id()) << endmsg;
883 Plugin::set_parameter(which, val);
887 LV2Plugin::get_parameter(uint32_t which) const
889 if (parameter_is_input(which)) {
890 return (float)_shadow_data[which];
892 return (float)_control_data[which];
898 LV2Plugin::get_docs() const
900 LilvNodes* comments = lilv_plugin_get_value(_impl->plugin, _world.rdfs_comment);
902 const std::string docs(lilv_node_as_string(lilv_nodes_get_first(comments)));
903 lilv_nodes_free(comments);
911 LV2Plugin::get_parameter_docs(uint32_t which) const
913 LilvNodes* comments = lilv_port_get_value(
915 lilv_plugin_get_port_by_index(_impl->plugin, which),
916 _world.rdfs_comment);
919 const std::string docs(lilv_node_as_string(lilv_nodes_get_first(comments)));
920 lilv_nodes_free(comments);
928 LV2Plugin::nth_parameter(uint32_t n, bool& ok) const
931 for (uint32_t c = 0, x = 0; x < lilv_plugin_get_num_ports(_impl->plugin); ++x) {
932 if (parameter_is_control(x)) {
944 LV2Plugin::extension_data(const char* uri) const
946 return lilv_instance_get_extension_data(_impl->instance, uri);
950 LV2Plugin::c_plugin()
952 return _impl->plugin;
958 return (const void*)_impl->ui;
962 LV2Plugin::c_ui_type()
964 return (const void*)_impl->ui_type;
967 /** Directory for all plugin state. */
969 LV2Plugin::plugin_dir() const
971 if (!_plugin_state_dir.empty ()){
972 return Glib::build_filename(_plugin_state_dir, _insert_id.to_s());
974 return Glib::build_filename(_session.plugins_dir(), _insert_id.to_s());
978 /** Directory for files created by the plugin (except during save). */
980 LV2Plugin::scratch_dir() const
982 return Glib::build_filename(plugin_dir(), "scratch");
985 /** Directory for snapshots of files in the scratch directory. */
987 LV2Plugin::file_dir() const
989 return Glib::build_filename(plugin_dir(), "files");
992 /** Directory to save state snapshot version @c num into. */
994 LV2Plugin::state_dir(unsigned num) const
996 return Glib::build_filename(plugin_dir(), string_compose("state%1", num));
999 /** Implementation of state:makePath for files created at instantiation time.
1000 * Note this is not used for files created at save time (Lilv deals with that).
1003 LV2Plugin::lv2_state_make_path(LV2_State_Make_Path_Handle handle,
1006 LV2Plugin* me = (LV2Plugin*)handle;
1007 if (me->_insert_id == PBD::ID("0")) {
1008 warning << string_compose(
1009 "File path \"%1\" requested but LV2 %2 has no insert ID",
1010 path, me->name()) << endmsg;
1011 return g_strdup(path);
1014 const std::string abs_path = Glib::build_filename(me->scratch_dir(), path);
1015 const std::string dirname = Glib::path_get_dirname(abs_path);
1016 g_mkdir_with_parents(dirname.c_str(), 0744);
1018 DEBUG_TRACE(DEBUG::LV2, string_compose("new file path %1 => %2\n",
1021 return g_strndup(abs_path.c_str(), abs_path.length());
1025 LV2Plugin::add_state(XMLNode* root) const
1027 assert(_insert_id != PBD::ID("0"));
1031 LocaleGuard lg(X_("C"));
1033 for (uint32_t i = 0; i < parameter_count(); ++i) {
1034 if (parameter_is_input(i) && parameter_is_control(i)) {
1035 child = new XMLNode("Port");
1036 child->add_property("symbol", port_symbol(i));
1037 snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]);
1038 child->add_property("value", string(buf));
1039 root->add_child_nocopy(*child);
1043 if (!_plugin_state_dir.empty()) {
1044 root->add_property("template-dir", _plugin_state_dir);
1047 if (_has_state_interface) {
1048 // Provisionally increment state version and create directory
1049 const std::string new_dir = state_dir(++_state_version);
1050 g_mkdir_with_parents(new_dir.c_str(), 0744);
1052 LilvState* state = lilv_state_new_from_instance(
1055 _uri_map.urid_map(),
1056 scratch_dir().c_str(),
1058 _session.externals_dir().c_str(),
1061 const_cast<LV2Plugin*>(this),
1065 if (!_impl->state || !lilv_state_equals(state, _impl->state)) {
1066 lilv_state_save(_world.world,
1067 _uri_map.urid_map(),
1068 _uri_map.urid_unmap(),
1074 lilv_state_free(_impl->state);
1075 _impl->state = state;
1077 // State is identical, decrement version and nuke directory
1078 lilv_state_free(state);
1079 PBD::remove_directory(new_dir);
1083 root->add_property("state-dir", string_compose("state%1", _state_version));
1087 // TODO: Once we can rely on lilv 0.16.0, lilv_world_get can replace this
1089 get_value(LilvWorld* world, const LilvNode* subject, const LilvNode* predicate)
1091 LilvNodes* vs = lilv_world_find_nodes(world, subject, predicate, NULL);
1093 LilvNode* node = lilv_node_duplicate(lilv_nodes_get_first(vs));
1094 lilv_nodes_free(vs);
1101 LV2Plugin::find_presets()
1103 LilvNode* lv2_appliesTo = lilv_new_uri(_world.world, LV2_CORE__appliesTo);
1104 LilvNode* pset_Preset = lilv_new_uri(_world.world, LV2_PRESETS__Preset);
1105 LilvNode* rdfs_label = lilv_new_uri(_world.world, LILV_NS_RDFS "label");
1107 LilvNodes* presets = lilv_plugin_get_related(_impl->plugin, pset_Preset);
1108 LILV_FOREACH(nodes, i, presets) {
1109 const LilvNode* preset = lilv_nodes_get(presets, i);
1110 lilv_world_load_resource(_world.world, preset);
1111 LilvNode* name = get_value(_world.world, preset, rdfs_label);
1113 _presets.insert(std::make_pair(lilv_node_as_string(preset),
1114 Plugin::PresetRecord(
1115 lilv_node_as_string(preset),
1116 lilv_node_as_string(name))));
1117 lilv_node_free(name);
1119 warning << string_compose(
1120 _("Plugin \"%1\" preset \"%2\" is missing a label\n"),
1121 lilv_node_as_string(lilv_plugin_get_uri(_impl->plugin)),
1122 lilv_node_as_string(preset)) << endmsg;
1125 lilv_nodes_free(presets);
1127 lilv_node_free(rdfs_label);
1128 lilv_node_free(pset_Preset);
1129 lilv_node_free(lv2_appliesTo);
1133 set_port_value(const char* port_symbol,
1139 LV2Plugin* self = (LV2Plugin*)user_data;
1140 if (type != 0 && type != URIMap::instance().urids.atom_Float) {
1141 return; // TODO: Support non-float ports
1144 const uint32_t port_index = self->port_index(port_symbol);
1145 if (port_index != (uint32_t)-1) {
1146 self->set_parameter(port_index, *(const float*)value);
1151 LV2Plugin::load_preset(PresetRecord r)
1153 LilvWorld* world = _world.world;
1154 LilvNode* pset = lilv_new_uri(world, r.uri.c_str());
1155 LilvState* state = lilv_state_new_from_world(world, _uri_map.urid_map(), pset);
1158 lilv_state_restore(state, _impl->instance, set_port_value, this, 0, NULL);
1159 lilv_state_free(state);
1160 Plugin::load_preset(r);
1163 lilv_node_free(pset);
1168 ARDOUR::lv2plugin_get_port_value(const char* port_symbol,
1173 LV2Plugin *plugin = (LV2Plugin *) user_data;
1175 uint32_t index = plugin->port_index(port_symbol);
1176 if (index != (uint32_t) -1) {
1177 if (plugin->parameter_is_input(index) && plugin->parameter_is_control(index)) {
1179 *size = sizeof(float);
1180 *type = plugin->_uri_map.uri_to_id(LV2_ATOM__Float);
1181 value = &plugin->_shadow_data[index];
1193 LV2Plugin::do_save_preset(string name)
1195 LilvNode* plug_name = lilv_plugin_get_name(_impl->plugin);
1196 const string prefix = legalize_for_uri(lilv_node_as_string(plug_name));
1197 const string base_name = legalize_for_uri(name);
1198 const string file_name = base_name + ".ttl";
1199 const string bundle = Glib::build_filename(
1200 Glib::get_home_dir(),
1201 Glib::build_filename(".lv2", prefix + "_" + base_name + ".lv2"));
1203 #ifdef HAVE_LILV_0_21_3
1204 /* delete reference to old preset (if any) */
1205 const PresetRecord* r = preset_by_label(name);
1207 LilvNode* pset = lilv_new_uri (_world.world, r->uri.c_str());
1209 lilv_world_unload_resource (_world.world, pset);
1210 lilv_node_free(pset);
1215 LilvState* state = lilv_state_new_from_instance(
1218 _uri_map.urid_map(),
1219 scratch_dir().c_str(), // file_dir
1220 bundle.c_str(), // copy_dir
1221 bundle.c_str(), // link_dir
1222 bundle.c_str(), // save_dir
1223 lv2plugin_get_port_value, // get_value
1224 (void*)this, // user_data
1225 LV2_STATE_IS_POD|LV2_STATE_IS_PORTABLE, // flags
1226 _features // features
1229 lilv_state_set_label(state, name.c_str());
1231 _world.world, // world
1232 _uri_map.urid_map(), // map
1233 _uri_map.urid_unmap(), // unmap
1235 NULL, // uri (NULL = use file URI)
1236 bundle.c_str(), // dir
1237 file_name.c_str() // filename
1240 lilv_state_free(state);
1242 std::string uri = Glib::filename_to_uri(Glib::build_filename(bundle, file_name));
1243 LilvNode *node_bundle = lilv_new_uri(_world.world, Glib::filename_to_uri(Glib::build_filename(bundle, "/")).c_str());
1244 LilvNode *node_preset = lilv_new_uri(_world.world, uri.c_str());
1245 #ifdef HAVE_LILV_0_21_3
1246 lilv_world_unload_resource(_world.world, node_preset);
1247 lilv_world_unload_bundle(_world.world, node_bundle);
1249 lilv_world_load_bundle(_world.world, node_bundle);
1250 lilv_world_load_resource(_world.world, node_preset);
1251 lilv_node_free(node_bundle);
1252 lilv_node_free(node_preset);
1253 lilv_node_free(plug_name);
1258 LV2Plugin::do_remove_preset(string name)
1260 #ifdef HAVE_LILV_0_21_3
1261 /* Look up preset record by label (FIXME: ick, label as ID) */
1262 const PresetRecord* r = preset_by_label(name);
1267 /* Load a LilvState for the preset. */
1268 LilvWorld* world = _world.world;
1269 LilvNode* pset = lilv_new_uri(world, r->uri.c_str());
1270 LilvState* state = lilv_state_new_from_world(world, _uri_map.urid_map(), pset);
1272 lilv_node_free(pset);
1276 /* Unload preset from world. */
1277 lilv_world_unload_resource(world, pset);
1279 /* Delete it from the file system. This will remove the preset file and the entry
1280 from the manifest. If this results in an empty manifest (i.e. the
1281 preset is the only thing in the bundle), then the bundle is removed. */
1282 lilv_state_delete(world, state);
1284 lilv_state_free(state);
1285 lilv_node_free(pset);
1287 /* Without lilv_state_delete(), we could delete the preset file, but this
1288 would leave a broken bundle/manifest around, so the preset would still
1289 be visible, but broken. Naively deleting a bundle is too dangerous, so
1290 we simply do not support preset deletion with older Lilv */
1294 LV2Plugin::has_editor() const
1296 return _impl->ui != NULL;
1300 LV2Plugin::has_message_output() const
1302 for (uint32_t i = 0; i < num_ports(); ++i) {
1303 if ((_port_flags[i] & PORT_SEQUENCE) &&
1304 (_port_flags[i] & PORT_OUTPUT)) {
1312 LV2Plugin::write_to(RingBuffer<uint8_t>* dest,
1316 const uint8_t* body)
1318 const uint32_t buf_size = sizeof(UIMessage) + size;
1319 vector<uint8_t> buf(buf_size);
1321 UIMessage* msg = (UIMessage*)&buf[0];
1323 msg->protocol = protocol;
1325 memcpy(msg + 1, body, size);
1327 return (dest->write(&buf[0], buf_size) == buf_size);
1331 LV2Plugin::write_from_ui(uint32_t index,
1334 const uint8_t* body)
1337 size_t rbs = _session.engine().raw_buffer_size(DataType::MIDI) * NBUFS;
1338 /* buffer data communication from plugin UI to plugin instance.
1339 * this buffer needs to potentially hold
1340 * (port's minimumSize) * (audio-periods) / (UI-periods)
1343 * e.g 48kSPS / 128fpp -> audio-periods = 375 Hz
1344 * ui-periods = 25 Hz (SuperRapidScreenUpdate)
1345 * default minimumSize = 32K (see LV2Plugin::allocate_atom_event_buffers()
1347 * it is NOT safe to overflow (msg.size will be misinterpreted)
1349 uint32_t bufsiz = 32768;
1350 if (_atom_ev_buffers && _atom_ev_buffers[0]) {
1351 bufsiz = lv2_evbuf_get_capacity(_atom_ev_buffers[0]);
1353 rbs = max((size_t) bufsiz * 8, rbs);
1354 _from_ui = new RingBuffer<uint8_t>(rbs);
1357 if (!write_to(_from_ui, index, protocol, size, body)) {
1358 error << "Error writing from UI to plugin" << endmsg;
1365 LV2Plugin::write_to_ui(uint32_t index,
1368 const uint8_t* body)
1370 if (!write_to(_to_ui, index, protocol, size, body)) {
1371 error << "Error writing from plugin to UI" << endmsg;
1378 forge_variant(LV2_Atom_Forge* forge, const Variant& value)
1380 switch (value.type()) {
1381 case Variant::NOTHING:
1383 case Variant::BEATS:
1384 // No atom type for this, just forge a double
1385 lv2_atom_forge_double(forge, value.get_beats().to_double());
1388 lv2_atom_forge_bool(forge, value.get_bool());
1390 case Variant::DOUBLE:
1391 lv2_atom_forge_double(forge, value.get_double());
1393 case Variant::FLOAT:
1394 lv2_atom_forge_float(forge, value.get_float());
1397 lv2_atom_forge_int(forge, value.get_int());
1400 lv2_atom_forge_long(forge, value.get_long());
1403 lv2_atom_forge_path(
1404 forge, value.get_path().c_str(), value.get_path().size());
1406 case Variant::STRING:
1407 lv2_atom_forge_string(
1408 forge, value.get_string().c_str(), value.get_string().size());
1412 forge, value.get_uri().c_str(), value.get_uri().size());
1417 /** Get a variant type from a URI, return false iff no match found. */
1419 uri_to_variant_type(const std::string& uri, Variant::Type& type)
1421 if (uri == LV2_ATOM__Bool) {
1422 type = Variant::BOOL;
1423 } else if (uri == LV2_ATOM__Double) {
1424 type = Variant::DOUBLE;
1425 } else if (uri == LV2_ATOM__Float) {
1426 type = Variant::FLOAT;
1427 } else if (uri == LV2_ATOM__Int) {
1428 type = Variant::INT;
1429 } else if (uri == LV2_ATOM__Long) {
1430 type = Variant::LONG;
1431 } else if (uri == LV2_ATOM__Path) {
1432 type = Variant::PATH;
1433 } else if (uri == LV2_ATOM__String) {
1434 type = Variant::STRING;
1435 } else if (uri == LV2_ATOM__URI) {
1436 type = Variant::URI;
1444 LV2Plugin::set_property(uint32_t key, const Variant& value)
1446 if (_patch_port_in_index == (uint32_t)-1) {
1447 error << "LV2: set_property called with unset patch_port_in_index" << endmsg;
1449 } else if (value.type() == Variant::NOTHING) {
1450 error << "LV2: set_property called with void value" << endmsg;
1454 // Set up forge to write to temporary buffer on the stack
1455 LV2_Atom_Forge* forge = &_impl->ui_forge;
1456 LV2_Atom_Forge_Frame frame;
1457 uint8_t buf[PATH_MAX]; // Ought to be enough for anyone...
1459 lv2_atom_forge_set_buffer(forge, buf, sizeof(buf));
1461 // Serialize patch:Set message to set property
1462 #ifdef HAVE_LV2_1_10_0
1463 lv2_atom_forge_object(forge, &frame, 1, _uri_map.urids.patch_Set);
1464 lv2_atom_forge_key(forge, _uri_map.urids.patch_property);
1465 lv2_atom_forge_urid(forge, key);
1466 lv2_atom_forge_key(forge, _uri_map.urids.patch_value);
1468 lv2_atom_forge_blank(forge, &frame, 1, _uri_map.urids.patch_Set);
1469 lv2_atom_forge_property_head(forge, _uri_map.urids.patch_property, 0);
1470 lv2_atom_forge_urid(forge, key);
1471 lv2_atom_forge_property_head(forge, _uri_map.urids.patch_value, 0);
1474 forge_variant(forge, value);
1476 // Write message to UI=>Plugin ring
1477 const LV2_Atom* const atom = (const LV2_Atom*)buf;
1478 write_from_ui(_patch_port_in_index,
1479 _uri_map.urids.atom_eventTransfer,
1480 lv2_atom_total_size(atom),
1481 (const uint8_t*)atom);
1484 const ParameterDescriptor&
1485 LV2Plugin::get_property_descriptor(uint32_t id) const
1487 PropertyDescriptors::const_iterator p = _property_descriptors.find(id);
1488 if (p != _property_descriptors.end()) {
1491 return Plugin::get_property_descriptor(id);
1495 load_parameter_descriptor_units(LilvWorld* lworld, ParameterDescriptor& desc, const LilvNodes* units)
1497 if (lilv_nodes_contains(units, _world.units_midiNote)) {
1498 desc.unit = ParameterDescriptor::MIDI_NOTE;
1499 } else if (lilv_nodes_contains(units, _world.units_db)) {
1500 desc.unit = ParameterDescriptor::DB;
1501 } else if (lilv_nodes_contains(units, _world.units_hz)) {
1502 desc.unit = ParameterDescriptor::HZ;
1504 if (lilv_nodes_size(units) > 0) {
1505 const LilvNode* unit = lilv_nodes_get_first(units);
1506 LilvNode* render = get_value(lworld, unit, _world.units_render);
1508 desc.print_fmt = lilv_node_as_string(render);
1509 lilv_node_free(render);
1515 load_parameter_descriptor(LV2World& world,
1516 ParameterDescriptor& desc,
1517 Variant::Type datatype,
1518 const LilvNode* subject)
1520 LilvWorld* lworld = _world.world;
1521 LilvNode* label = get_value(lworld, subject, _world.rdfs_label);
1522 LilvNode* def = get_value(lworld, subject, _world.lv2_default);
1523 LilvNode* minimum = get_value(lworld, subject, _world.lv2_minimum);
1524 LilvNode* maximum = get_value(lworld, subject, _world.lv2_maximum);
1525 LilvNodes* units = lilv_world_find_nodes(lworld, subject, _world.units_unit, NULL);
1527 desc.label = lilv_node_as_string(label);
1529 if (def && lilv_node_is_float(def)) {
1530 desc.normal = lilv_node_as_float(def);
1532 if (minimum && lilv_node_is_float(minimum)) {
1533 desc.lower = lilv_node_as_float(minimum);
1535 if (maximum && lilv_node_is_float(maximum)) {
1536 desc.upper = lilv_node_as_float(maximum);
1538 load_parameter_descriptor_units(lworld, desc, units);
1539 desc.datatype = datatype;
1540 desc.toggled |= datatype == Variant::BOOL;
1541 desc.integer_step |= datatype == Variant::INT || datatype == Variant::LONG;
1542 desc.update_steps();
1544 lilv_nodes_free(units);
1545 lilv_node_free(label);
1546 lilv_node_free(def);
1547 lilv_node_free(minimum);
1548 lilv_node_free(maximum);
1552 LV2Plugin::load_supported_properties(PropertyDescriptors& descs)
1554 LilvWorld* lworld = _world.world;
1555 const LilvNode* subject = lilv_plugin_get_uri(_impl->plugin);
1556 LilvNodes* properties = lilv_world_find_nodes(
1557 lworld, subject, _world.patch_writable, NULL);
1558 LILV_FOREACH(nodes, p, properties) {
1559 // Get label and range
1560 const LilvNode* prop = lilv_nodes_get(properties, p);
1561 LilvNode* range = get_value(lworld, prop, _world.rdfs_range);
1563 warning << string_compose(_("LV2: property <%1> has no range datatype, ignoring"),
1564 lilv_node_as_uri(prop)) << endmsg;
1568 // Convert range to variant type (TODO: support for multiple range types)
1569 Variant::Type datatype;
1570 if (!uri_to_variant_type(lilv_node_as_uri(range), datatype)) {
1571 error << string_compose(_("LV2: property <%1> has unsupported datatype <%1>"),
1572 lilv_node_as_uri(prop), lilv_node_as_uri(range)) << endmsg;
1576 // Add description to result
1577 ParameterDescriptor desc;
1578 desc.key = _uri_map.uri_to_id(lilv_node_as_uri(prop));
1579 desc.datatype = datatype;
1580 load_parameter_descriptor(_world, desc, datatype, prop);
1581 descs.insert(std::make_pair(desc.key, desc));
1583 lilv_node_free(range);
1585 lilv_nodes_free(properties);
1589 LV2Plugin::announce_property_values()
1591 if (_patch_port_in_index == (uint32_t)-1) {
1595 // Set up forge to write to temporary buffer on the stack
1596 LV2_Atom_Forge* forge = &_impl->ui_forge;
1597 LV2_Atom_Forge_Frame frame;
1598 uint8_t buf[PATH_MAX]; // Ought to be enough for anyone...
1600 lv2_atom_forge_set_buffer(forge, buf, sizeof(buf));
1602 // Serialize patch:Get message with no subject (implicitly plugin instance)
1603 #ifdef HAVE_LV2_1_10_0
1604 lv2_atom_forge_object(forge, &frame, 1, _uri_map.urids.patch_Get);
1606 lv2_atom_forge_blank(forge, &frame, 1, _uri_map.urids.patch_Get);
1609 // Write message to UI=>Plugin ring
1610 const LV2_Atom* const atom = (const LV2_Atom*)buf;
1611 write_from_ui(_patch_port_in_index,
1612 _uri_map.urids.atom_eventTransfer,
1613 lv2_atom_total_size(atom),
1614 (const uint8_t*)atom);
1618 LV2Plugin::enable_ui_emission()
1621 /* see note in LV2Plugin::write_from_ui() */
1622 uint32_t bufsiz = 32768;
1623 if (_atom_ev_buffers && _atom_ev_buffers[0]) {
1624 bufsiz = lv2_evbuf_get_capacity(_atom_ev_buffers[0]);
1626 size_t rbs = _session.engine().raw_buffer_size(DataType::MIDI) * NBUFS;
1627 rbs = max((size_t) bufsiz * 8, rbs);
1628 _to_ui = new RingBuffer<uint8_t>(rbs);
1633 LV2Plugin::emit_to_ui(void* controller, UIMessageSink sink)
1639 uint32_t read_space = _to_ui->read_space();
1640 while (read_space > sizeof(UIMessage)) {
1642 if (_to_ui->read((uint8_t*)&msg, sizeof(msg)) != sizeof(msg)) {
1643 error << "Error reading from Plugin=>UI RingBuffer" << endmsg;
1646 vector<uint8_t> body(msg.size);
1647 if (_to_ui->read(&body[0], msg.size) != msg.size) {
1648 error << "Error reading from Plugin=>UI RingBuffer" << endmsg;
1652 sink(controller, msg.index, msg.size, msg.protocol, &body[0]);
1654 read_space -= sizeof(msg) + msg.size;
1659 LV2Plugin::work(uint32_t size, const void* data)
1661 return _impl->work_iface->work(
1662 _impl->instance->lv2_handle, work_respond, this, size, data);
1666 LV2Plugin::work_response(uint32_t size, const void* data)
1668 return _impl->work_iface->work_response(
1669 _impl->instance->lv2_handle, size, data);
1673 LV2Plugin::set_insert_id(PBD::ID id)
1675 if (_insert_id == "0") {
1677 } else if (_insert_id != id) {
1678 lilv_state_free(_impl->state);
1679 _impl->state = NULL;
1685 LV2Plugin::set_state_dir (const std::string& d)
1687 _plugin_state_dir = d;
1691 LV2Plugin::set_state(const XMLNode& node, int version)
1694 const XMLProperty* prop;
1695 XMLNodeConstIterator iter;
1700 LocaleGuard lg(X_("C"));
1702 if (node.name() != state_node_name()) {
1703 error << _("Bad node sent to LV2Plugin::set_state") << endmsg;
1707 #ifndef NO_PLUGIN_STATE
1709 if (version < 3000) {
1710 nodes = node.children("port");
1712 nodes = node.children("Port");
1715 for (iter = nodes.begin(); iter != nodes.end(); ++iter) {
1719 if ((prop = child->property("symbol")) != 0) {
1720 sym = prop->value().c_str();
1722 warning << _("LV2: port has no symbol, ignored") << endmsg;
1726 map<string, uint32_t>::iterator i = _port_indices.find(sym);
1728 if (i != _port_indices.end()) {
1729 port_id = i->second;
1731 warning << _("LV2: port has unknown index, ignored") << endmsg;
1735 if ((prop = child->property("value")) != 0) {
1736 value = prop->value().c_str();
1738 warning << _("LV2: port has no value, ignored") << endmsg;
1742 set_parameter(port_id, atof(value));
1745 if ((prop = node.property("template-dir")) != 0) {
1746 set_state_dir (prop->value ());
1750 if ((prop = node.property("state-dir")) != 0) {
1751 if (sscanf(prop->value().c_str(), "state%u", &_state_version) != 1) {
1752 error << string_compose(
1753 "LV2: failed to parse state version from \"%1\"",
1754 prop->value()) << endmsg;
1757 std::string state_file = Glib::build_filename(
1759 Glib::build_filename(prop->value(), "state.ttl"));
1761 LilvState* state = lilv_state_new_from_file(
1762 _world.world, _uri_map.urid_map(), NULL, state_file.c_str());
1764 lilv_state_restore(state, _impl->instance, NULL, NULL, 0, NULL);
1765 lilv_state_free(_impl->state);
1766 _impl->state = state;
1769 if (!_plugin_state_dir.empty ()) {
1770 // force save with session, next time (increment counter)
1771 lilv_state_free (_impl->state);
1772 _impl->state = NULL;
1776 latency_compute_run();
1779 return Plugin::set_state(node, version);
1783 LV2Plugin::get_parameter_descriptor(uint32_t which, ParameterDescriptor& desc) const
1785 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, which);
1787 error << string_compose("LV2: get descriptor of non-existent port %1", which)
1792 LilvNodes* portunits;
1793 LilvNode *def, *min, *max;
1794 lilv_port_get_range(_impl->plugin, port, &def, &min, &max);
1795 portunits = lilv_port_get_value(_impl->plugin, port, _world.units_unit);
1797 // TODO: Once we can rely on lilv 0.18.0 being present,
1798 // load_parameter_descriptor() can be used for ports as well
1799 desc.integer_step = lilv_port_has_property(_impl->plugin, port, _world.lv2_integer);
1800 desc.toggled = lilv_port_has_property(_impl->plugin, port, _world.lv2_toggled);
1801 desc.logarithmic = lilv_port_has_property(_impl->plugin, port, _world.ext_logarithmic);
1802 desc.sr_dependent = lilv_port_has_property(_impl->plugin, port, _world.lv2_sampleRate);
1803 desc.label = lilv_node_as_string(lilv_port_get_name(_impl->plugin, port));
1804 desc.normal = def ? lilv_node_as_float(def) : 0.0f;
1805 desc.lower = min ? lilv_node_as_float(min) : 0.0f;
1806 desc.upper = max ? lilv_node_as_float(max) : 1.0f;
1807 load_parameter_descriptor_units(_world.world, desc, portunits);
1809 if (desc.sr_dependent) {
1810 desc.lower *= _session.frame_rate ();
1811 desc.upper *= _session.frame_rate ();
1814 desc.min_unbound = false; // TODO: LV2 extension required
1815 desc.max_unbound = false; // TODO: LV2 extension required
1817 desc.enumeration = lilv_port_has_property(_impl->plugin, port, _world.lv2_enumeration);
1818 desc.scale_points = get_scale_points(which);
1820 desc.update_steps();
1822 lilv_node_free(def);
1823 lilv_node_free(min);
1824 lilv_node_free(max);
1825 lilv_nodes_free(portunits);
1831 LV2Plugin::describe_parameter(Evoral::Parameter which)
1833 if (( which.type() == PluginAutomation) && ( which.id() < parameter_count()) ) {
1835 if (lilv_port_has_property(_impl->plugin,
1836 lilv_plugin_get_port_by_index(_impl->plugin, which.id()), _world.ext_notOnGUI)) {
1837 return X_("hidden");
1840 if (lilv_port_has_property(_impl->plugin,
1841 lilv_plugin_get_port_by_index(_impl->plugin, which.id()), _world.lv2_freewheeling)) {
1842 return X_("hidden");
1845 if (lilv_port_has_property(_impl->plugin,
1846 lilv_plugin_get_port_by_index(_impl->plugin, which.id()), _world.lv2_reportsLatency)) {
1847 return X_("latency");
1850 LilvNode* name = lilv_port_get_name(_impl->plugin,
1851 lilv_plugin_get_port_by_index(_impl->plugin, which.id()));
1852 string ret(lilv_node_as_string(name));
1853 lilv_node_free(name);
1861 LV2Plugin::signal_latency() const
1863 if (_latency_control_port) {
1864 return (framecnt_t)floor(*_latency_control_port);
1870 set<Evoral::Parameter>
1871 LV2Plugin::automatable() const
1873 set<Evoral::Parameter> ret;
1875 for (uint32_t i = 0; i < parameter_count(); ++i) {
1876 if (parameter_is_input(i) && parameter_is_control(i)) {
1877 ret.insert(ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
1881 for (PropertyDescriptors::const_iterator p = _property_descriptors.begin();
1882 p != _property_descriptors.end();
1884 ret.insert(ret.end(), Evoral::Parameter(PluginPropertyAutomation, 0, p->first));
1890 LV2Plugin::activate()
1892 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 activate\n", name()));
1894 if (!_was_activated) {
1895 lilv_instance_activate(_impl->instance);
1896 _was_activated = true;
1901 LV2Plugin::deactivate()
1903 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 deactivate\n", name()));
1905 if (_was_activated) {
1906 lilv_instance_deactivate(_impl->instance);
1907 _was_activated = false;
1912 LV2Plugin::cleanup()
1914 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 cleanup\n", name()));
1918 lilv_instance_free(_impl->instance);
1919 _impl->instance = NULL;
1923 LV2Plugin::allocate_atom_event_buffers()
1925 /* reserve local scratch buffers for ATOM event-queues */
1926 const LilvPlugin* p = _impl->plugin;
1928 /* count non-MIDI atom event-ports
1929 * TODO: nicely ask drobilla to make a lilv_ call for that
1931 int count_atom_out = 0;
1932 int count_atom_in = 0;
1933 int minimumSize = 32768; // TODO use a per-port minimum-size
1934 for (uint32_t i = 0; i < lilv_plugin_get_num_ports(p); ++i) {
1935 const LilvPort* port = lilv_plugin_get_port_by_index(p, i);
1936 if (lilv_port_is_a(p, port, _world.atom_AtomPort)) {
1937 LilvNodes* buffer_types = lilv_port_get_value(
1938 p, port, _world.atom_bufferType);
1939 LilvNodes* atom_supports = lilv_port_get_value(
1940 p, port, _world.atom_supports);
1942 if (!lilv_nodes_contains(buffer_types, _world.atom_Sequence)
1943 || !lilv_nodes_contains(atom_supports, _world.midi_MidiEvent)) {
1944 if (lilv_port_is_a(p, port, _world.lv2_InputPort)) {
1947 if (lilv_port_is_a(p, port, _world.lv2_OutputPort)) {
1950 LilvNodes* min_size_v = lilv_port_get_value(_impl->plugin, port, _world.rsz_minimumSize);
1951 LilvNode* min_size = min_size_v ? lilv_nodes_get_first(min_size_v) : NULL;
1952 if (min_size && lilv_node_is_int(min_size)) {
1953 minimumSize = std::max(minimumSize, lilv_node_as_int(min_size));
1955 lilv_nodes_free(min_size_v);
1957 lilv_nodes_free(buffer_types);
1958 lilv_nodes_free(atom_supports);
1962 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 need buffers for %2 atom-in and %3 atom-out event-ports\n",
1963 name(), count_atom_in, count_atom_out));
1965 const int total_atom_buffers = (count_atom_in + count_atom_out);
1966 if (_atom_ev_buffers || total_atom_buffers == 0) {
1970 DEBUG_TRACE(DEBUG::LV2, string_compose("allocate %1 atom_ev_buffers of %d bytes\n", total_atom_buffers, minimumSize));
1971 _atom_ev_buffers = (LV2_Evbuf**) malloc((total_atom_buffers + 1) * sizeof(LV2_Evbuf*));
1972 for (int i = 0; i < total_atom_buffers; ++i ) {
1973 _atom_ev_buffers[i] = lv2_evbuf_new(minimumSize, LV2_EVBUF_ATOM,
1974 _uri_map.urids.atom_Chunk, _uri_map.urids.atom_Sequence);
1976 _atom_ev_buffers[total_atom_buffers] = 0;
1980 /** Write an ardour position/time/tempo/meter as an LV2 event.
1981 * @return true on success.
1984 write_position(LV2_Atom_Forge* forge,
1986 const TempoMetric& t,
1987 Timecode::BBT_Time& bbt,
1989 framepos_t position,
1992 const URIMap::URIDs& urids = URIMap::instance().urids;
1994 uint8_t pos_buf[256];
1995 lv2_atom_forge_set_buffer(forge, pos_buf, sizeof(pos_buf));
1996 LV2_Atom_Forge_Frame frame;
1997 #ifdef HAVE_LV2_1_10_0
1998 lv2_atom_forge_object(forge, &frame, 1, urids.time_Position);
1999 lv2_atom_forge_key(forge, urids.time_frame);
2000 lv2_atom_forge_long(forge, position);
2001 lv2_atom_forge_key(forge, urids.time_speed);
2002 lv2_atom_forge_float(forge, speed);
2003 lv2_atom_forge_key(forge, urids.time_barBeat);
2004 lv2_atom_forge_float(forge, bbt.beats - 1 +
2005 (bbt.ticks / Timecode::BBT_Time::ticks_per_beat));
2006 lv2_atom_forge_key(forge, urids.time_bar);
2007 lv2_atom_forge_long(forge, bbt.bars - 1);
2008 lv2_atom_forge_key(forge, urids.time_beatUnit);
2009 lv2_atom_forge_int(forge, t.meter().note_divisor());
2010 lv2_atom_forge_key(forge, urids.time_beatsPerBar);
2011 lv2_atom_forge_float(forge, t.meter().divisions_per_bar());
2012 lv2_atom_forge_key(forge, urids.time_beatsPerMinute);
2013 lv2_atom_forge_float(forge, t.tempo().beats_per_minute());
2015 lv2_atom_forge_blank(forge, &frame, 1, urids.time_Position);
2016 lv2_atom_forge_property_head(forge, urids.time_frame, 0);
2017 lv2_atom_forge_long(forge, position);
2018 lv2_atom_forge_property_head(forge, urids.time_speed, 0);
2019 lv2_atom_forge_float(forge, speed);
2020 lv2_atom_forge_property_head(forge, urids.time_barBeat, 0);
2021 lv2_atom_forge_float(forge, bbt.beats - 1 +
2022 (bbt.ticks / Timecode::BBT_Time::ticks_per_beat));
2023 lv2_atom_forge_property_head(forge, urids.time_bar, 0);
2024 lv2_atom_forge_long(forge, bbt.bars - 1);
2025 lv2_atom_forge_property_head(forge, urids.time_beatUnit, 0);
2026 lv2_atom_forge_int(forge, t.meter().note_divisor());
2027 lv2_atom_forge_property_head(forge, urids.time_beatsPerBar, 0);
2028 lv2_atom_forge_float(forge, t.meter().divisions_per_bar());
2029 lv2_atom_forge_property_head(forge, urids.time_beatsPerMinute, 0);
2030 lv2_atom_forge_float(forge, t.tempo().beats_per_minute());
2033 LV2_Evbuf_Iterator end = lv2_evbuf_end(buf);
2034 const LV2_Atom* const atom = (const LV2_Atom*)pos_buf;
2035 return lv2_evbuf_write(&end, offset, 0, atom->type, atom->size,
2036 (const uint8_t*)(atom + 1));
2040 LV2Plugin::connect_and_run(BufferSet& bufs,
2041 ChanMapping in_map, ChanMapping out_map,
2042 pframes_t nframes, framecnt_t offset)
2044 DEBUG_TRACE(DEBUG::LV2, string_compose("%1 run %2 offset %3\n", name(), nframes, offset));
2045 Plugin::connect_and_run(bufs, in_map, out_map, nframes, offset);
2047 cycles_t then = get_cycles();
2049 TempoMap& tmap = _session.tempo_map();
2050 Metrics::const_iterator metric_i = tmap.metrics_end();
2051 TempoMetric tmetric = tmap.metric_at(_session.transport_frame(), &metric_i);
2053 if (_freewheel_control_port) {
2054 *_freewheel_control_port = _session.engine().freewheeling() ? 1.f : 0.f;
2057 if (_bpm_control_port) {
2058 *_bpm_control_port = tmetric.tempo().beats_per_minute();
2061 ChanCount bufs_count;
2062 bufs_count.set(DataType::AUDIO, 1);
2063 bufs_count.set(DataType::MIDI, 1);
2064 BufferSet& silent_bufs = _session.get_silent_buffers(bufs_count);
2065 BufferSet& scratch_bufs = _session.get_scratch_buffers(bufs_count);
2066 uint32_t const num_ports = parameter_count();
2067 uint32_t const nil_index = std::numeric_limits<uint32_t>::max();
2069 uint32_t audio_in_index = 0;
2070 uint32_t audio_out_index = 0;
2071 uint32_t midi_in_index = 0;
2072 uint32_t midi_out_index = 0;
2073 uint32_t atom_port_index = 0;
2074 for (uint32_t port_index = 0; port_index < num_ports; ++port_index) {
2076 uint32_t index = nil_index;
2077 PortFlags flags = _port_flags[port_index];
2079 if (flags & PORT_AUDIO) {
2080 if (flags & PORT_INPUT) {
2081 index = in_map.get(DataType::AUDIO, audio_in_index++, &valid);
2083 ? bufs.get_audio(index).data(offset)
2084 : silent_bufs.get_audio(0).data(offset);
2086 index = out_map.get(DataType::AUDIO, audio_out_index++, &valid);
2088 ? bufs.get_audio(index).data(offset)
2089 : scratch_bufs.get_audio(0).data(offset);
2091 } else if (flags & (PORT_EVENT|PORT_SEQUENCE)) {
2092 /* FIXME: The checks here for bufs.count().n_midi() > index shouldn't
2093 be necessary, but the mapping is illegal in some cases. Ideally
2094 that should be fixed, but this is easier...
2096 if (flags & PORT_MIDI) {
2097 if (flags & PORT_INPUT) {
2098 index = in_map.get(DataType::MIDI, midi_in_index++, &valid);
2100 index = out_map.get(DataType::MIDI, midi_out_index++, &valid);
2102 if (valid && bufs.count().n_midi() > index) {
2103 /* Note, ensure_lv2_bufsize() is not RT safe!
2104 * However free()/alloc() is only called if a
2105 * plugin requires a rsz:minimumSize buffersize
2106 * and the existing buffer if smaller.
2108 bufs.ensure_lv2_bufsize((flags & PORT_INPUT), index, _port_minimumSize[port_index]);
2109 _ev_buffers[port_index] = bufs.get_lv2_midi(
2110 (flags & PORT_INPUT), index, (flags & PORT_EVENT));
2112 } else if ((flags & PORT_POSITION) && (flags & PORT_INPUT)) {
2113 lv2_evbuf_reset(_atom_ev_buffers[atom_port_index], true);
2114 _ev_buffers[port_index] = _atom_ev_buffers[atom_port_index++];
2118 if (valid && (flags & PORT_INPUT)) {
2119 Timecode::BBT_Time bbt;
2120 if ((flags & PORT_POSITION)) {
2121 if (_session.transport_frame() != _next_cycle_start ||
2122 _session.transport_speed() != _next_cycle_speed) {
2123 // Transport has changed, write position at cycle start
2124 tmap.bbt_time(_session.transport_frame(), bbt);
2125 write_position(&_impl->forge, _ev_buffers[port_index],
2126 tmetric, bbt, _session.transport_speed(),
2127 _session.transport_frame(), 0);
2131 // Get MIDI iterator range (empty range if no MIDI)
2132 MidiBuffer::iterator m = (index != nil_index)
2133 ? bufs.get_midi(index).begin()
2134 : silent_bufs.get_midi(0).end();
2135 MidiBuffer::iterator m_end = (index != nil_index)
2136 ? bufs.get_midi(index).end()
2139 // Now merge MIDI and any transport events into the buffer
2140 const uint32_t type = _uri_map.urids.midi_MidiEvent;
2141 const framepos_t tend = _session.transport_frame() + nframes;
2143 while (m != m_end || (metric_i != tmap.metrics_end() &&
2144 (*metric_i)->frame() < tend)) {
2145 MetricSection* metric = (metric_i != tmap.metrics_end())
2147 if (m != m_end && (!metric || metric->frame() > (*m).time())) {
2148 const Evoral::MIDIEvent<framepos_t> ev(*m, false);
2149 LV2_Evbuf_Iterator eend = lv2_evbuf_end(_ev_buffers[port_index]);
2150 lv2_evbuf_write(&eend, ev.time(), 0, type, ev.size(), ev.buffer());
2153 tmetric.set_metric(metric);
2154 bbt = metric->start();
2155 write_position(&_impl->forge, _ev_buffers[port_index],
2156 tmetric, bbt, _session.transport_speed(),
2158 metric->frame() - _session.transport_frame());
2162 } else if (!valid) {
2163 // Nothing we understand or care about, connect to scratch
2164 // see note for midi-buffer size above
2165 scratch_bufs.ensure_lv2_bufsize((flags & PORT_INPUT),
2166 0, _port_minimumSize[port_index]);
2167 _ev_buffers[port_index] = scratch_bufs.get_lv2_midi(
2168 (flags & PORT_INPUT), 0, (flags & PORT_EVENT));
2171 buf = lv2_evbuf_get_buffer(_ev_buffers[port_index]);
2173 continue; // Control port, leave buffer alone
2175 lilv_instance_connect_port(_impl->instance, port_index, buf);
2178 // Read messages from UI and push into appropriate buffers
2180 uint32_t read_space = _from_ui->read_space();
2181 while (read_space > sizeof(UIMessage)) {
2183 if (_from_ui->read((uint8_t*)&msg, sizeof(msg)) != sizeof(msg)) {
2184 error << "Error reading from UI=>Plugin RingBuffer" << endmsg;
2187 vector<uint8_t> body(msg.size);
2188 if (_from_ui->read(&body[0], msg.size) != msg.size) {
2189 error << "Error reading from UI=>Plugin RingBuffer" << endmsg;
2192 if (msg.protocol == URIMap::instance().urids.atom_eventTransfer) {
2193 LV2_Evbuf* buf = _ev_buffers[msg.index];
2194 LV2_Evbuf_Iterator i = lv2_evbuf_end(buf);
2195 const LV2_Atom* const atom = (const LV2_Atom*)&body[0];
2196 if (!lv2_evbuf_write(&i, nframes - 1, 0, atom->type, atom->size,
2197 (const uint8_t*)(atom + 1))) {
2198 error << "Failed to write data to LV2 event buffer\n";
2201 error << "Received unknown message type from UI" << endmsg;
2203 read_space -= sizeof(UIMessage) + msg.size;
2210 for (uint32_t port_index = 0; port_index < num_ports; ++port_index) {
2211 PortFlags flags = _port_flags[port_index];
2214 /* TODO ask drobilla about comment
2215 * "Make Ardour event buffers generic so plugins can communicate"
2216 * in libs/ardour/buffer_set.cc:310
2218 * ideally the user could choose which of the following two modes
2219 * to use (e.g. instrument/effect chains MIDI OUT vs MIDI TRHU).
2221 * This implementation follows the discussion on IRC Mar 16 2013 16:47 UTC
2222 * 16:51 < drobilla> rgareus: [..] i.e always replace with MIDI output [of LV2 plugin] if it's there
2223 * 16:52 < drobilla> rgareus: That would probably be good enough [..] to make users not complain
2224 * for quite a while at least ;)
2226 // copy output of LV2 plugin's MIDI port to Ardour MIDI buffers -- MIDI OUT
2227 if ((flags & PORT_OUTPUT) && (flags & (PORT_EVENT|PORT_SEQUENCE|PORT_MIDI))) {
2228 const uint32_t buf_index = out_map.get(
2229 DataType::MIDI, midi_out_index++, &valid);
2231 bufs.forward_lv2_midi(_ev_buffers[port_index], buf_index);
2234 // Flush MIDI (write back to Ardour MIDI buffers) -- MIDI THRU
2235 else if ((flags & PORT_OUTPUT) && (flags & (PORT_EVENT|PORT_SEQUENCE))) {
2236 const uint32_t buf_index = out_map.get(
2237 DataType::MIDI, midi_out_index++, &valid);
2239 bufs.flush_lv2_midi(true, buf_index);
2244 // Write messages to UI
2245 if ((_to_ui || _patch_port_out_index != (uint32_t)-1) &&
2246 (flags & PORT_OUTPUT) && (flags & (PORT_EVENT|PORT_SEQUENCE))) {
2247 LV2_Evbuf* buf = _ev_buffers[port_index];
2248 for (LV2_Evbuf_Iterator i = lv2_evbuf_begin(buf);
2249 lv2_evbuf_is_valid(i);
2250 i = lv2_evbuf_next(i)) {
2251 uint32_t frames, subframes, type, size;
2253 lv2_evbuf_get(i, &frames, &subframes, &type, &size, &data);
2255 // Intercept patch change messages to emit PropertyChanged signal
2256 if ((flags & PORT_PATCHMSG)) {
2257 LV2_Atom* atom = (LV2_Atom*)(data - sizeof(LV2_Atom));
2258 if (atom->type == _uri_map.urids.atom_Blank ||
2259 atom->type == _uri_map.urids.atom_Object) {
2260 LV2_Atom_Object* obj = (LV2_Atom_Object*)atom;
2261 if (obj->body.otype == _uri_map.urids.patch_Set) {
2262 const LV2_Atom* property = NULL;
2263 const LV2_Atom* value = NULL;
2264 lv2_atom_object_get(obj,
2265 _uri_map.urids.patch_property, &property,
2266 _uri_map.urids.patch_value, &value,
2269 if (!property || !value ||
2270 property->type != _uri_map.urids.atom_URID ||
2271 value->type != _uri_map.urids.atom_Path) {
2272 std::cerr << "warning: patch:Set for unknown property" << std::endl;
2276 const uint32_t prop_id = ((const LV2_Atom_URID*)property)->body;
2277 const char* path = (const char*)LV2_ATOM_BODY_CONST(value);
2279 // Emit PropertyChanged signal for UI
2280 // TODO: This should emit the control's Changed signal
2281 PropertyChanged(prop_id, Variant(Variant::PATH, path));
2286 if (!_to_ui) continue;
2287 write_to_ui(port_index, URIMap::instance().urids.atom_eventTransfer,
2288 size + sizeof(LV2_Atom),
2289 data - sizeof(LV2_Atom));
2294 cycles_t now = get_cycles();
2295 set_cycles((uint32_t)(now - then));
2297 // Update expected transport information for next cycle so we can detect changes
2298 _next_cycle_speed = _session.transport_speed();
2299 _next_cycle_start = _session.transport_frame() + (nframes * _next_cycle_speed);
2305 LV2Plugin::parameter_is_control(uint32_t param) const
2307 assert(param < _port_flags.size());
2308 return _port_flags[param] & PORT_CONTROL;
2312 LV2Plugin::parameter_is_audio(uint32_t param) const
2314 assert(param < _port_flags.size());
2315 return _port_flags[param] & PORT_AUDIO;
2319 LV2Plugin::parameter_is_event(uint32_t param) const
2321 assert(param < _port_flags.size());
2322 return _port_flags[param] & PORT_EVENT;
2326 LV2Plugin::parameter_is_output(uint32_t param) const
2328 assert(param < _port_flags.size());
2329 return _port_flags[param] & PORT_OUTPUT;
2333 LV2Plugin::parameter_is_input(uint32_t param) const
2335 assert(param < _port_flags.size());
2336 return _port_flags[param] & PORT_INPUT;
2340 LV2Plugin::print_parameter(uint32_t param, char* buf, uint32_t len) const
2343 if (param < parameter_count()) {
2344 snprintf(buf, len, "%.3f", get_parameter(param));
2351 boost::shared_ptr<ScalePoints>
2352 LV2Plugin::get_scale_points(uint32_t port_index) const
2354 const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, port_index);
2355 LilvScalePoints* points = lilv_port_get_scale_points(_impl->plugin, port);
2357 boost::shared_ptr<ScalePoints> ret;
2362 ret = boost::shared_ptr<ScalePoints>(new ScalePoints());
2364 LILV_FOREACH(scale_points, i, points) {
2365 const LilvScalePoint* p = lilv_scale_points_get(points, i);
2366 const LilvNode* label = lilv_scale_point_get_label(p);
2367 const LilvNode* value = lilv_scale_point_get_value(p);
2368 if (label && (lilv_node_is_float(value) || lilv_node_is_int(value))) {
2369 ret->insert(make_pair(lilv_node_as_string(label),
2370 lilv_node_as_float(value)));
2374 lilv_scale_points_free(points);
2379 LV2Plugin::run(pframes_t nframes)
2381 uint32_t const N = parameter_count();
2382 for (uint32_t i = 0; i < N; ++i) {
2383 if (parameter_is_control(i) && parameter_is_input(i)) {
2384 _control_data[i] = _shadow_data[i];
2388 lilv_instance_run(_impl->instance, nframes);
2390 if (_impl->work_iface) {
2391 _worker->emit_responses();
2392 if (_impl->work_iface->end_run) {
2393 _impl->work_iface->end_run(_impl->instance->lv2_handle);
2399 LV2Plugin::latency_compute_run()
2401 if (!_latency_control_port) {
2405 // Run the plugin so that it can set its latency parameter
2407 bool was_activated = _was_activated;
2410 uint32_t port_index = 0;
2411 uint32_t in_index = 0;
2412 uint32_t out_index = 0;
2414 // this is done in the main thread. non realtime.
2415 const framecnt_t bufsize = _engine.samples_per_cycle();
2416 float *buffer = (float*) malloc(_engine.samples_per_cycle() * sizeof(float));
2418 memset(buffer, 0, sizeof(float) * bufsize);
2420 // FIXME: Ensure plugins can handle in-place processing
2424 while (port_index < parameter_count()) {
2425 if (parameter_is_audio(port_index)) {
2426 if (parameter_is_input(port_index)) {
2427 lilv_instance_connect_port(_impl->instance, port_index, buffer);
2429 } else if (parameter_is_output(port_index)) {
2430 lilv_instance_connect_port(_impl->instance, port_index, buffer);
2439 if (was_activated) {
2446 LV2Plugin::Impl::designated_input (const char* uri, void** bufptrs[], void** bufptr)
2448 const LilvPort* port = NULL;
2449 LilvNode* designation = lilv_new_uri(_world.world, uri);
2450 port = lilv_plugin_get_port_by_designation(
2451 plugin, _world.lv2_InputPort, designation);
2452 lilv_node_free(designation);
2454 bufptrs[lilv_port_get_index(plugin, port)] = bufptr;
2459 static bool lv2_filter (const string& str, void* /*arg*/)
2461 /* Not a dotfile, has a prefix before a period, suffix is "lv2" */
2463 return str[0] != '.' && (str.length() > 3 && str.find (".lv2") == (str.length() - 4));
2467 LV2World::LV2World()
2468 : world(lilv_world_new())
2469 , _bundle_checked(false)
2471 atom_AtomPort = lilv_new_uri(world, LV2_ATOM__AtomPort);
2472 atom_Chunk = lilv_new_uri(world, LV2_ATOM__Chunk);
2473 atom_Sequence = lilv_new_uri(world, LV2_ATOM__Sequence);
2474 atom_bufferType = lilv_new_uri(world, LV2_ATOM__bufferType);
2475 atom_supports = lilv_new_uri(world, LV2_ATOM__supports);
2476 atom_eventTransfer = lilv_new_uri(world, LV2_ATOM__eventTransfer);
2477 ev_EventPort = lilv_new_uri(world, LILV_URI_EVENT_PORT);
2478 ext_logarithmic = lilv_new_uri(world, LV2_PORT_PROPS__logarithmic);
2479 ext_notOnGUI = lilv_new_uri(world, LV2_PORT_PROPS__notOnGUI);
2480 lv2_AudioPort = lilv_new_uri(world, LILV_URI_AUDIO_PORT);
2481 lv2_ControlPort = lilv_new_uri(world, LILV_URI_CONTROL_PORT);
2482 lv2_InputPort = lilv_new_uri(world, LILV_URI_INPUT_PORT);
2483 lv2_OutputPort = lilv_new_uri(world, LILV_URI_OUTPUT_PORT);
2484 lv2_inPlaceBroken = lilv_new_uri(world, LV2_CORE__inPlaceBroken);
2485 lv2_integer = lilv_new_uri(world, LV2_CORE__integer);
2486 lv2_default = lilv_new_uri(world, LV2_CORE__default);
2487 lv2_minimum = lilv_new_uri(world, LV2_CORE__minimum);
2488 lv2_maximum = lilv_new_uri(world, LV2_CORE__maximum);
2489 lv2_reportsLatency = lilv_new_uri(world, LV2_CORE__reportsLatency);
2490 lv2_sampleRate = lilv_new_uri(world, LV2_CORE__sampleRate);
2491 lv2_toggled = lilv_new_uri(world, LV2_CORE__toggled);
2492 lv2_enumeration = lilv_new_uri(world, LV2_CORE__enumeration);
2493 lv2_freewheeling = lilv_new_uri(world, LV2_CORE__freeWheeling);
2494 midi_MidiEvent = lilv_new_uri(world, LILV_URI_MIDI_EVENT);
2495 rdfs_comment = lilv_new_uri(world, LILV_NS_RDFS "comment");
2496 rdfs_label = lilv_new_uri(world, LILV_NS_RDFS "label");
2497 rdfs_range = lilv_new_uri(world, LILV_NS_RDFS "range");
2498 rsz_minimumSize = lilv_new_uri(world, LV2_RESIZE_PORT__minimumSize);
2499 time_Position = lilv_new_uri(world, LV2_TIME__Position);
2500 ui_GtkUI = lilv_new_uri(world, LV2_UI__GtkUI);
2501 ui_external = lilv_new_uri(world, "http://lv2plug.in/ns/extensions/ui#external");
2502 ui_externalkx = lilv_new_uri(world, "http://kxstudio.sf.net/ns/lv2ext/external-ui#Widget");
2503 units_unit = lilv_new_uri(world, LV2_UNITS__unit);
2504 units_render = lilv_new_uri(world, LV2_UNITS__render);
2505 units_hz = lilv_new_uri(world, LV2_UNITS__hz);
2506 units_midiNote = lilv_new_uri(world, LV2_UNITS__midiNote);
2507 units_db = lilv_new_uri(world, LV2_UNITS__db);
2508 patch_writable = lilv_new_uri(world, LV2_PATCH__writable);
2509 patch_Message = lilv_new_uri(world, LV2_PATCH__Message);
2510 lv2_noSampleAccurateCtrl = lilv_new_uri(world, LV2_CORE_PREFIX "noSampleAccurateControls");
2511 #ifdef HAVE_LV2_1_2_0
2512 bufz_powerOf2BlockLength = lilv_new_uri(world, LV2_BUF_SIZE__powerOf2BlockLength);
2513 bufz_fixedBlockLength = lilv_new_uri(world, LV2_BUF_SIZE__fixedBlockLength);
2514 bufz_nominalBlockLength = lilv_new_uri(world, "http://lv2plug.in/ns/ext/buf-size#nominalBlockLength");
2519 LV2World::~LV2World()
2521 #ifdef HAVE_LV2_1_2_0
2522 lilv_node_free(bufz_nominalBlockLength);
2523 lilv_node_free(bufz_fixedBlockLength);
2524 lilv_node_free(bufz_powerOf2BlockLength);
2526 lilv_node_free(lv2_noSampleAccurateCtrl);
2527 lilv_node_free(patch_Message);
2528 lilv_node_free(patch_writable);
2529 lilv_node_free(units_hz);
2530 lilv_node_free(units_midiNote);
2531 lilv_node_free(units_db);
2532 lilv_node_free(units_unit);
2533 lilv_node_free(units_render);
2534 lilv_node_free(ui_externalkx);
2535 lilv_node_free(ui_external);
2536 lilv_node_free(ui_GtkUI);
2537 lilv_node_free(time_Position);
2538 lilv_node_free(rsz_minimumSize);
2539 lilv_node_free(rdfs_comment);
2540 lilv_node_free(rdfs_label);
2541 lilv_node_free(rdfs_range);
2542 lilv_node_free(midi_MidiEvent);
2543 lilv_node_free(lv2_enumeration);
2544 lilv_node_free(lv2_freewheeling);
2545 lilv_node_free(lv2_toggled);
2546 lilv_node_free(lv2_sampleRate);
2547 lilv_node_free(lv2_reportsLatency);
2548 lilv_node_free(lv2_integer);
2549 lilv_node_free(lv2_inPlaceBroken);
2550 lilv_node_free(lv2_OutputPort);
2551 lilv_node_free(lv2_InputPort);
2552 lilv_node_free(lv2_ControlPort);
2553 lilv_node_free(lv2_AudioPort);
2554 lilv_node_free(ext_notOnGUI);
2555 lilv_node_free(ext_logarithmic);
2556 lilv_node_free(ev_EventPort);
2557 lilv_node_free(atom_supports);
2558 lilv_node_free(atom_eventTransfer);
2559 lilv_node_free(atom_bufferType);
2560 lilv_node_free(atom_Sequence);
2561 lilv_node_free(atom_Chunk);
2562 lilv_node_free(atom_AtomPort);
2563 lilv_world_free(world);
2567 LV2World::load_bundled_plugins(bool verbose)
2569 if (!_bundle_checked) {
2571 cout << "Scanning folders for bundled LV2s: " << ARDOUR::lv2_bundled_search_path().to_string() << endl;
2574 vector<string> plugin_objects;
2575 find_paths_matching_filter (plugin_objects, ARDOUR::lv2_bundled_search_path(), lv2_filter, 0, true, true, true);
2576 for ( vector<string>::iterator x = plugin_objects.begin(); x != plugin_objects.end (); ++x) {
2577 #ifdef PLATFORM_WINDOWS
2578 string uri = "file:///" + *x + "/";
2580 string uri = "file://" + *x + "/";
2582 LilvNode *node = lilv_new_uri(world, uri.c_str());
2583 lilv_world_load_bundle(world, node);
2584 lilv_node_free(node);
2587 lilv_world_load_all(world);
2588 _bundle_checked = true;
2592 LV2PluginInfo::LV2PluginInfo (const char* plugin_uri)
2595 _plugin_uri = strdup(plugin_uri);
2598 LV2PluginInfo::~LV2PluginInfo()
2605 LV2PluginInfo::load(Session& session)
2609 const LilvPlugins* plugins = lilv_world_get_all_plugins(_world.world);
2610 LilvNode* uri = lilv_new_uri(_world.world, _plugin_uri);
2611 if (!uri) { throw failed_constructor(); }
2612 const LilvPlugin* lp = lilv_plugins_get_by_uri(plugins, uri);
2613 if (!lp) { throw failed_constructor(); }
2614 plugin.reset(new LV2Plugin(session.engine(), session, lp, session.frame_rate()));
2615 lilv_node_free(uri);
2616 plugin->set_info(PluginInfoPtr(shared_from_this ()));
2618 } catch (failed_constructor& err) {
2619 return PluginPtr((Plugin*)0);
2625 std::vector<Plugin::PresetRecord>
2626 LV2PluginInfo::get_presets(Session&)
2628 std::vector<Plugin::PresetRecord> p;
2629 #ifndef NO_PLUGIN_STATE
2630 const LilvPlugin* lp = NULL;
2633 const LilvPlugins* plugins = lilv_world_get_all_plugins(_world.world);
2634 LilvNode* uri = lilv_new_uri(_world.world, _plugin_uri);
2635 if (!uri) { throw failed_constructor(); }
2636 lp = lilv_plugins_get_by_uri(plugins, uri);
2637 if (!lp) { throw failed_constructor(); }
2638 lilv_node_free(uri);
2639 } catch (failed_constructor& err) {
2643 // see LV2Plugin::find_presets
2644 LilvNode* lv2_appliesTo = lilv_new_uri(_world.world, LV2_CORE__appliesTo);
2645 LilvNode* pset_Preset = lilv_new_uri(_world.world, LV2_PRESETS__Preset);
2646 LilvNode* rdfs_label = lilv_new_uri(_world.world, LILV_NS_RDFS "label");
2648 LilvNodes* presets = lilv_plugin_get_related(lp, pset_Preset);
2649 LILV_FOREACH(nodes, i, presets) {
2650 const LilvNode* preset = lilv_nodes_get(presets, i);
2651 lilv_world_load_resource(_world.world, preset);
2652 LilvNode* name = get_value(_world.world, preset, rdfs_label);
2654 p.push_back (Plugin::PresetRecord(lilv_node_as_string(preset), lilv_node_as_string(name)));
2655 lilv_node_free(name);
2658 lilv_nodes_free(presets);
2659 lilv_node_free(rdfs_label);
2660 lilv_node_free(pset_Preset);
2661 lilv_node_free(lv2_appliesTo);
2667 LV2PluginInfo::in_category (const std::string &c) const
2669 // TODO use untranslated lilv_plugin_get_class()
2670 // match gtk2_ardour/plugin_selector.cc
2671 if (category == c) {
2678 LV2PluginInfo::is_instrument () const
2680 if (category == "Instrument") {
2684 /* until we make sure that category remains untranslated in the lv2.ttl spec
2685 * and until most instruments also classify themselves as such, there's a 2nd check:
2687 if (n_inputs.n_midi() > 0 && n_inputs.n_audio() == 0 && n_outputs.n_audio() > 0) {
2695 LV2PluginInfo::discover()
2698 world.load_bundled_plugins();
2699 _world.load_bundled_plugins(true);
2701 PluginInfoList* plugs = new PluginInfoList;
2702 const LilvPlugins* plugins = lilv_world_get_all_plugins(world.world);
2704 LILV_FOREACH(plugins, i, plugins) {
2705 const LilvPlugin* p = lilv_plugins_get(plugins, i);
2706 const LilvNode* pun = lilv_plugin_get_uri(p);
2708 LV2PluginInfoPtr info(new LV2PluginInfo(lilv_node_as_string(pun)));
2710 LilvNode* name = lilv_plugin_get_name(p);
2711 if (!name || !lilv_plugin_get_port_by_index(p, 0)) {
2712 warning << "Ignoring invalid LV2 plugin "
2713 << lilv_node_as_string(lilv_plugin_get_uri(p))
2718 if (lilv_plugin_has_feature(p, world.lv2_inPlaceBroken)) {
2719 warning << string_compose(
2720 _("Ignoring LV2 plugin \"%1\" since it cannot do inplace processing."),
2721 lilv_node_as_string(name)) << endmsg;
2722 lilv_node_free(name);
2726 #ifdef HAVE_LV2_1_2_0
2727 LilvNodes *required_features = lilv_plugin_get_required_features (p);
2728 if (lilv_nodes_contains (required_features, world.bufz_powerOf2BlockLength) ||
2729 lilv_nodes_contains (required_features, world.bufz_fixedBlockLength)
2731 warning << string_compose(
2732 _("Ignoring LV2 plugin \"%1\" because its buffer-size requirements cannot be satisfied."),
2733 lilv_node_as_string(name)) << endmsg;
2734 lilv_nodes_free(required_features);
2735 lilv_node_free(name);
2738 lilv_nodes_free(required_features);
2743 info->name = string(lilv_node_as_string(name));
2744 lilv_node_free(name);
2745 ARDOUR::PluginScanMessage(_("LV2"), info->name, false);
2747 const LilvPluginClass* pclass = lilv_plugin_get_class(p);
2748 const LilvNode* label = lilv_plugin_class_get_label(pclass);
2749 info->category = lilv_node_as_string(label);
2751 LilvNode* author_name = lilv_plugin_get_author_name(p);
2752 info->creator = author_name ? string(lilv_node_as_string(author_name)) : "Unknown";
2753 lilv_node_free(author_name);
2755 info->path = "/NOPATH"; // Meaningless for LV2
2757 /* count atom-event-ports that feature
2758 * atom:supports <http://lv2plug.in/ns/ext/midi#MidiEvent>
2760 * TODO: nicely ask drobilla to make a lilv_ call for that
2762 int count_midi_out = 0;
2763 int count_midi_in = 0;
2764 for (uint32_t i = 0; i < lilv_plugin_get_num_ports(p); ++i) {
2765 const LilvPort* port = lilv_plugin_get_port_by_index(p, i);
2766 if (lilv_port_is_a(p, port, world.atom_AtomPort)) {
2767 LilvNodes* buffer_types = lilv_port_get_value(
2768 p, port, world.atom_bufferType);
2769 LilvNodes* atom_supports = lilv_port_get_value(
2770 p, port, world.atom_supports);
2772 if (lilv_nodes_contains(buffer_types, world.atom_Sequence)
2773 && lilv_nodes_contains(atom_supports, world.midi_MidiEvent)) {
2774 if (lilv_port_is_a(p, port, world.lv2_InputPort)) {
2777 if (lilv_port_is_a(p, port, world.lv2_OutputPort)) {
2781 lilv_nodes_free(buffer_types);
2782 lilv_nodes_free(atom_supports);
2786 info->n_inputs.set_audio(
2787 lilv_plugin_get_num_ports_of_class(
2788 p, world.lv2_InputPort, world.lv2_AudioPort, NULL));
2789 info->n_inputs.set_midi(
2790 lilv_plugin_get_num_ports_of_class(
2791 p, world.lv2_InputPort, world.ev_EventPort, NULL)
2794 info->n_outputs.set_audio(
2795 lilv_plugin_get_num_ports_of_class(
2796 p, world.lv2_OutputPort, world.lv2_AudioPort, NULL));
2797 info->n_outputs.set_midi(
2798 lilv_plugin_get_num_ports_of_class(
2799 p, world.lv2_OutputPort, world.ev_EventPort, NULL)
2802 info->unique_id = lilv_node_as_uri(lilv_plugin_get_uri(p));
2803 info->index = 0; // Meaningless for LV2
2805 plugs->push_back(info);