--- /dev/null
+;/*
+ Copyright (C) 2008-2011 Paul Davis
+ Author: David Robillard
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <string>
+#include <vector>
+
+#include <cmath>
+#include <cstdlib>
+#include <cstring>
+
+#include <glibmm.h>
+
+#include <boost/utility.hpp>
+
+#include "pbd/compose.h"
+#include "pbd/error.h"
+#include "pbd/pathscanner.h"
+#include "pbd/stl_delete.h"
+#include "pbd/xml++.h"
+
+#include "libardour-config.h"
+
+#include "ardour/ardour.h"
+#include "ardour/audio_buffer.h"
+#include "ardour/audioengine.h"
+#include "ardour/debug.h"
+#include "ardour/lv2_event_buffer.h"
+#include "ardour/lv2_plugin.h"
+#include "ardour/lv2_state.h"
+#include "ardour/session.h"
+
+#include "i18n.h"
+#include <locale.h>
+
+#include <lilv/lilv.h>
+
+#include "lv2ext/lv2_files.h"
+#include "lv2ext/lv2_persist.h"
+#include "rdff.h"
+#ifdef HAVE_SUIL
+#include <suil/suil.h>
+#endif
+
+#define NS_DC "http://dublincore.org/documents/dcmi-namespace/"
+#define NS_LV2 "http://lv2plug.in/ns/lv2core#"
+#define NS_PSET "http://lv2plug.in/ns/dev/presets#"
+#define NS_UI "http://lv2plug.in/ns/extensions/ui#"
+
+using namespace std;
+using namespace ARDOUR;
+using namespace PBD;
+
+URIMap LV2Plugin::_uri_map;
+uint32_t LV2Plugin::_midi_event_type = _uri_map.uri_to_id(
+ "http://lv2plug.in/ns/ext/event",
+ "http://lv2plug.in/ns/ext/midi#MidiEvent");
+
+class LV2World : boost::noncopyable {
+public:
+ LV2World ();
+ ~LV2World ();
+
+ LilvWorld* world;
+ LilvNode* input_class; ///< Input port
+ LilvNode* output_class; ///< Output port
+ LilvNode* audio_class; ///< Audio port
+ LilvNode* control_class; ///< Control port
+ LilvNode* event_class; ///< Event port
+ LilvNode* midi_class; ///< MIDI event
+ LilvNode* in_place_broken;
+ LilvNode* integer;
+ LilvNode* toggled;
+ LilvNode* srate;
+ LilvNode* gtk_gui;
+ LilvNode* external_gui;
+ LilvNode* logarithmic;
+};
+
+static LV2World _world;
+
+struct LV2Plugin::Impl {
+ Impl() : plugin(0), ui(0), ui_type(0), name(0), author(0), instance(0) {}
+ LilvPlugin* plugin;
+ const LilvUI* ui;
+ const LilvNode* ui_type;
+ LilvNode* name;
+ LilvNode* author;
+ LilvInstance* instance;
+};
+
+LV2Plugin::LV2Plugin (AudioEngine& engine,
+ Session& session,
+ void* c_plugin,
+ framecnt_t rate)
+ : Plugin(engine, session)
+ , _impl(new Impl())
+ , _features(NULL)
+ , _insert_id("0")
+{
+ init(c_plugin, rate);
+}
+
+LV2Plugin::LV2Plugin (const LV2Plugin& other)
+ : Plugin(other)
+ , _impl(new Impl())
+ , _features(NULL)
+ , _insert_id(other._insert_id)
+{
+ init(other._impl->plugin, other._sample_rate);
+
+ for (uint32_t i = 0; i < parameter_count(); ++i) {
+ _control_data[i] = other._shadow_data[i];
+ _shadow_data[i] = other._shadow_data[i];
+ }
+}
+
+void
+LV2Plugin::init(void* c_plugin, framecnt_t rate)
+{
+ DEBUG_TRACE(DEBUG::LV2, "init\n");
+
+ _impl->plugin = (LilvPlugin*)c_plugin;
+ _impl->ui = NULL;
+ _impl->ui_type = NULL;
+ _control_data = 0;
+ _shadow_data = 0;
+ _latency_control_port = 0;
+ _was_activated = false;
+
+ _instance_access_feature.URI = "http://lv2plug.in/ns/ext/instance-access";
+ _data_access_feature.URI = "http://lv2plug.in/ns/ext/data-access";
+ _path_support_feature.URI = LV2_FILES_PATH_SUPPORT_URI;
+ _new_file_support_feature.URI = LV2_FILES_NEW_FILE_SUPPORT_URI;
+ _persist_feature.URI = "http://lv2plug.in/ns/ext/persist";
+ _persist_feature.data = NULL;
+
+ LilvPlugin* plugin = _impl->plugin;
+
+ LilvNode* persist_uri = lilv_new_uri(_world.world, _persist_feature.URI);
+ _supports_persist = lilv_plugin_has_feature(plugin, persist_uri);
+ lilv_node_free(persist_uri);
+
+ _features = (LV2_Feature**)malloc(sizeof(LV2_Feature*) * 7);
+ _features[0] = &_instance_access_feature;
+ _features[1] = &_data_access_feature;
+ _features[2] = &_path_support_feature;
+ _features[3] = &_new_file_support_feature;
+ _features[4] = &_persist_feature;
+ _features[5] = _uri_map.feature();
+ _features[6] = NULL;
+
+ LV2_Files_Path_Support* path_support = (LV2_Files_Path_Support*)malloc(
+ sizeof(LV2_Files_Path_Support));
+ path_support->host_data = this;
+ path_support->abstract_path = &lv2_files_abstract_path;
+ path_support->absolute_path = &lv2_files_absolute_path;
+ _path_support_feature.data = path_support;
+
+ LV2_Files_New_File_Support* new_file_support = (LV2_Files_New_File_Support*)malloc(
+ sizeof(LV2_Files_New_File_Support));
+ new_file_support->host_data = this;
+ new_file_support->new_file_path = &lv2_files_new_file_path;
+ _new_file_support_feature.data = new_file_support;
+
+ _impl->instance = lilv_plugin_instantiate(plugin, rate, _features);
+ _impl->name = lilv_plugin_get_name(plugin);
+ _impl->author = lilv_plugin_get_author_name(plugin);
+
+ if (_impl->instance == 0) {
+ error << _("LV2: Failed to instantiate plugin ") << uri() << endmsg;
+ throw failed_constructor();
+ }
+
+ _instance_access_feature.data = (void*)_impl->instance->lv2_handle;
+ _data_access_extension_data.extension_data = _impl->instance->lv2_descriptor->extension_data;
+ _data_access_feature.data = &_data_access_extension_data;
+
+ if (lilv_plugin_has_feature(plugin, _world.in_place_broken)) {
+ error << string_compose(
+ _("LV2: \"%1\" cannot be used, since it cannot do inplace processing"),
+ lilv_node_as_string(_impl->name)) << endmsg;
+ lilv_node_free(_impl->name);
+ lilv_node_free(_impl->author);
+ throw failed_constructor();
+ }
+
+ _sample_rate = rate;
+
+ const uint32_t num_ports = this->num_ports();
+ const bool latent = lilv_plugin_has_latency(plugin);
+ const uint32_t latency_port = (latent)
+ ? lilv_plugin_get_latency_port_index(plugin)
+ : 0;
+
+ _control_data = new float[num_ports];
+ _shadow_data = new float[num_ports];
+ _defaults = new float[num_ports];
+
+ for (uint32_t i = 0; i < num_ports; ++i) {
+ const LilvPort* port = lilv_plugin_get_port_by_index(plugin, i);
+ const LilvNode* sym = lilv_port_get_symbol(plugin, port);
+
+ // Store index in map so we can look up index by symbol
+ _port_indices.insert(std::make_pair(lilv_node_as_string(sym), i));
+
+ // Get range and default value if applicable
+ if (parameter_is_control(i)) {
+ LilvNode* def;
+ lilv_port_get_range(plugin, port, &def, NULL, NULL);
+ _defaults[i] = def ? lilv_node_as_float(def) : 0.0f;
+ lilv_node_free(def);
+
+ lilv_instance_connect_port(_impl->instance, i, &_control_data[i]);
+
+ if (latent && ( i == latency_port) ) {
+ _latency_control_port = &_control_data[i];
+ *_latency_control_port = 0;
+ }
+
+ if (parameter_is_input(i)) {
+ _shadow_data[i] = default_value(i);
+ }
+ } else {
+ _defaults[i] = 0.0f;
+ }
+ }
+
+ LilvUIs* uis = lilv_plugin_get_uis(plugin);
+ if (lilv_uis_size(uis) > 0) {
+#ifdef HAVE_SUIL
+ // Look for embeddable UI
+ LILV_FOREACH(uis, u, uis) {
+ const LilvUI* this_ui = lilv_uis_get(uis, u);
+ const LilvNode* this_ui_type = NULL;
+ if (lilv_ui_is_supported(this_ui,
+ suil_ui_supported,
+ _world.gtk_gui,
+ &this_ui_type)) {
+ // TODO: Multiple UI support
+ _impl->ui = this_ui;
+ _impl->ui_type = this_ui_type;
+ break;
+ }
+ }
+#else
+ // Look for Gtk native UI
+ LILV_FOREACH(uis, i, uis) {
+ const LilvUI* ui = lilv_uis_get(uis, i);
+ if (lilv_ui_is_a(ui, _world.gtk_gui)) {
+ _impl->ui = ui;
+ _impl->ui_type = _world.gtk_gui;
+ break;
+ }
+ }
+#endif
+
+ // If Gtk UI is not available, try to find external UI
+ if (!_impl->ui) {
+ LILV_FOREACH(uis, i, uis) {
+ const LilvUI* ui = lilv_uis_get(uis, i);
+ if (lilv_ui_is_a(ui, _world.external_gui)) {
+ _impl->ui = ui;
+ _impl->ui_type = _world.external_gui;
+ break;
+ }
+ }
+ }
+ }
+
+ latency_compute_run();
+}
+
+LV2Plugin::~LV2Plugin ()
+{
+ DEBUG_TRACE(DEBUG::LV2, string_compose("%1 destroy\n", name()));
+
+ deactivate();
+ cleanup();
+
+ lilv_instance_free(_impl->instance);
+ lilv_node_free(_impl->name);
+ lilv_node_free(_impl->author);
+
+ delete [] _control_data;
+ delete [] _shadow_data;
+}
+
+bool
+LV2Plugin::is_external_ui() const
+{
+ if (!_impl->ui) {
+ return false;
+ }
+ return lilv_ui_is_a(_impl->ui, _world.external_gui);
+}
+
+string
+LV2Plugin::unique_id() const
+{
+ return lilv_node_as_uri(lilv_plugin_get_uri(_impl->plugin));
+}
+
+const char*
+LV2Plugin::uri() const
+{
+ return lilv_node_as_uri(lilv_plugin_get_uri(_impl->plugin));
+}
+
+const char*
+LV2Plugin::label() const
+{
+ return lilv_node_as_string(_impl->name);
+}
+
+const char*
+LV2Plugin::name() const
+{
+ return lilv_node_as_string(_impl->name);
+}
+
+const char*
+LV2Plugin::maker() const
+{
+ return _impl->author ? lilv_node_as_string (_impl->author) : "Unknown";
+}
+
+uint32_t
+LV2Plugin::num_ports() const
+{
+ return lilv_plugin_get_num_ports(_impl->plugin);
+}
+
+uint32_t
+LV2Plugin::parameter_count() const
+{
+ return lilv_plugin_get_num_ports(_impl->plugin);
+}
+
+float
+LV2Plugin::default_value(uint32_t port)
+{
+ return _defaults[port];
+}
+
+const char*
+LV2Plugin::port_symbol(uint32_t index) const
+{
+ const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, index);
+ if (!port) {
+ error << name() << ": Invalid port index " << index << endmsg;
+ }
+
+ const LilvNode* sym = lilv_port_get_symbol(_impl->plugin, port);
+ return lilv_node_as_string(sym);
+}
+
+void
+LV2Plugin::set_parameter(uint32_t which, float val)
+{
+ DEBUG_TRACE(DEBUG::LV2, string_compose(
+ "%1 set parameter %2 to %3\n", name(), which, val));
+
+ if (which < lilv_plugin_get_num_ports(_impl->plugin)) {
+ _shadow_data[which] = val;
+ } else {
+ warning << string_compose(
+ _("Illegal parameter number used with plugin \"%1\". "
+ "This is a bug in either %2 or the LV2 plugin <%3>"),
+ name(), PROGRAM_NAME, unique_id()) << endmsg;
+ }
+
+ Plugin::set_parameter(which, val);
+}
+
+float
+LV2Plugin::get_parameter(uint32_t which) const
+{
+ if (parameter_is_input(which)) {
+ return (float)_shadow_data[which];
+ } else {
+ return (float)_control_data[which];
+ }
+ return 0.0f;
+}
+
+uint32_t
+LV2Plugin::nth_parameter(uint32_t n, bool& ok) const
+{
+ ok = false;
+ for (uint32_t c = 0, x = 0; x < lilv_plugin_get_num_ports(_impl->plugin); ++x) {
+ if (parameter_is_control(x)) {
+ if (c++ == n) {
+ ok = true;
+ return x;
+ }
+ }
+ }
+
+ return 0;
+}
+
+const void*
+LV2Plugin::extension_data (const char* uri) const
+{
+ return lilv_instance_get_extension_data(_impl->instance, uri);
+}
+
+void*
+LV2Plugin::c_plugin ()
+{
+ return _impl->plugin;
+}
+
+void*
+LV2Plugin::c_ui ()
+{
+ return (void*)_impl->ui;
+}
+
+void*
+LV2Plugin::c_ui_type ()
+{
+ return (void*)_impl->ui_type;
+}
+
+int
+LV2Plugin::lv2_persist_store_callback(void* host_data,
+ uint32_t key,
+ const void* value,
+ size_t size,
+ uint32_t type,
+ uint32_t flags)
+{
+ DEBUG_TRACE(DEBUG::LV2, string_compose(
+ "persist store %1 (size: %2, type: %3)\n",
+ _uri_map.id_to_uri(NULL, key),
+ size,
+ _uri_map.id_to_uri(NULL, type)));
+
+ LV2PersistState* state = (LV2PersistState*)host_data;
+ state->add_uri(key, _uri_map.id_to_uri(NULL, key));
+ state->add_uri(type, _uri_map.id_to_uri(NULL, type));
+ return state->add_value(key, value, size, type, flags);
+}
+
+const void*
+LV2Plugin::lv2_persist_retrieve_callback(void* host_data,
+ uint32_t key,
+ size_t* size,
+ uint32_t* type,
+ uint32_t* flags)
+{
+ LV2PersistState* state = (LV2PersistState*)host_data;
+ LV2PersistState::Values::const_iterator i = state->values.find(key);
+ if (i == state->values.end()) {
+ warning << "LV2 plugin attempted to retrieve nonexistent key: "
+ << _uri_map.id_to_uri(NULL, key) << endmsg;
+ return NULL;
+ }
+ *size = i->second.size;
+ *type = i->second.type;
+ *flags = LV2_PERSIST_IS_POD | LV2_PERSIST_IS_PORTABLE; // FIXME
+ DEBUG_TRACE(DEBUG::LV2, string_compose(
+ "persist retrieve %1 = %2 (size: %3, type: %4)\n",
+ _uri_map.id_to_uri(NULL, key),
+ i->second.value, *size, *type));
+ return i->second.value;
+}
+
+char*
+LV2Plugin::lv2_files_abstract_path(LV2_Files_Host_Data host_data,
+ const char* absolute_path)
+{
+ LV2Plugin* me = (LV2Plugin*)host_data;
+ if (me->_insert_id == PBD::ID("0")) {
+ return g_strdup(absolute_path);
+ }
+
+ const std::string state_dir = Glib::build_filename(me->_session.plugins_dir(),
+ me->_insert_id.to_s());
+
+ char* ret = NULL;
+ if (strncmp(absolute_path, state_dir.c_str(), state_dir.length())) {
+ ret = g_strdup(absolute_path);
+ } else {
+ const std::string path(absolute_path + state_dir.length() + 1);
+ ret = g_strndup(path.c_str(), path.length());
+ }
+
+ DEBUG_TRACE(DEBUG::LV2, string_compose("abstract path %1 => %2\n",
+ absolute_path, ret));
+
+ return ret;
+}
+
+char*
+LV2Plugin::lv2_files_absolute_path(LV2_Files_Host_Data host_data,
+ const char* abstract_path)
+{
+ LV2Plugin* me = (LV2Plugin*)host_data;
+ if (me->_insert_id == PBD::ID("0")) {
+ return g_strdup(abstract_path);
+ }
+
+ char* ret = NULL;
+ if (g_path_is_absolute(abstract_path)) {
+ ret = g_strdup(abstract_path);
+ } else {
+ const std::string apath(abstract_path);
+ const std::string state_dir = Glib::build_filename(me->_session.plugins_dir(),
+ me->_insert_id.to_s());
+ const std::string path = Glib::build_filename(state_dir,
+ apath);
+ ret = g_strndup(path.c_str(), path.length());
+ }
+
+ DEBUG_TRACE(DEBUG::LV2, string_compose("absolute path %1 => %2\n",
+ abstract_path, ret));
+
+ return ret;
+}
+
+char*
+LV2Plugin::lv2_files_new_file_path(LV2_Files_Host_Data host_data,
+ const char* relative_path)
+{
+ LV2Plugin* me = (LV2Plugin*)host_data;
+ if (me->_insert_id == PBD::ID("0")) {
+ return g_strdup(relative_path);
+ }
+
+ const std::string state_dir = Glib::build_filename(me->_session.plugins_dir(),
+ me->_insert_id.to_s());
+ const std::string path = Glib::build_filename(state_dir,
+ relative_path);
+
+ char* dirname = g_path_get_dirname(path.c_str());
+ g_mkdir_with_parents(dirname, 0744);
+ free(dirname);
+
+ DEBUG_TRACE(DEBUG::LV2, string_compose("new file path %1 => %2\n",
+ relative_path, path));
+
+ return g_strndup(path.c_str(), path.length());
+}
+
+void
+LV2Plugin::add_state(XMLNode* root) const
+{
+ assert(_insert_id != PBD::ID("0"));
+
+ XMLNode* child;
+ char buf[16];
+ LocaleGuard lg(X_("POSIX"));
+
+ for (uint32_t i = 0; i < parameter_count(); ++i) {
+ if (parameter_is_input(i) && parameter_is_control(i)) {
+ child = new XMLNode("Port");
+ child->add_property("symbol", port_symbol(i));
+ snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]);
+ child->add_property("value", string(buf));
+ root->add_child_nocopy(*child);
+ }
+ }
+
+ if (_supports_persist) {
+ // Create state directory for this plugin instance
+ const std::string state_filename = _insert_id.to_s() + ".rdff";
+ const std::string state_path = Glib::build_filename(
+ _session.plugins_dir(), state_filename);
+
+ cout << "Saving LV2 plugin state to " << state_path << endl;
+
+ // Get LV2 Persist extension data from plugin instance
+ LV2_Persist* persist = (LV2_Persist*)extension_data(
+ "http://lv2plug.in/ns/ext/persist");
+ if (!persist) {
+ warning << string_compose(
+ _("Plugin \"%1\% failed to return LV2 persist data"),
+ unique_id());
+ return;
+ }
+
+ // Save plugin state to state object
+ LV2PersistState state(_uri_map);
+ persist->save(_impl->instance->lv2_handle,
+ &LV2Plugin::lv2_persist_store_callback,
+ &state);
+
+ // Write state object to RDFF file
+ RDFF file = rdff_open(state_path.c_str(), true);
+ state.write(file);
+ rdff_close(file);
+
+ root->add_property("state-file", state_filename);
+ }
+}
+
+static inline const LilvNode*
+get_value(LilvWorld* world, const LilvNode* subject, const LilvNode* predicate)
+{
+ LilvNodes* vs = lilv_world_find_nodes(world, subject, predicate, NULL);
+ return vs ? lilv_nodes_get_first(vs) : NULL;
+}
+
+void
+LV2Plugin::find_presets()
+{
+ LilvNode* dc_title = lilv_new_uri(_world.world, NS_DC "title");
+ LilvNode* pset_hasPreset = lilv_new_uri(_world.world, NS_PSET "hasPreset");
+
+ LilvNodes* presets = lilv_plugin_get_value(_impl->plugin, pset_hasPreset);
+ LILV_FOREACH(nodes, i, presets) {
+ const LilvNode* preset = lilv_nodes_get(presets, i);
+ const LilvNode* name = get_value(_world.world, preset, dc_title);
+ if (name) {
+ _presets.insert(std::make_pair(lilv_node_as_string(preset),
+ PresetRecord(
+ lilv_node_as_string(preset),
+ lilv_node_as_string(name))));
+ } else {
+ warning << string_compose(
+ _("Plugin \"%1\% preset \"%2%\" is missing a dc:title\n"),
+ unique_id(), lilv_node_as_string(preset));
+ }
+ }
+ lilv_nodes_free(presets);
+
+ lilv_node_free(pset_hasPreset);
+ lilv_node_free(dc_title);
+}
+
+bool
+LV2Plugin::load_preset(PresetRecord r)
+{
+ Plugin::load_preset(r);
+
+ LilvNode* lv2_port = lilv_new_uri(_world.world, NS_LV2 "port");
+ LilvNode* lv2_symbol = lilv_new_uri(_world.world, NS_LV2 "symbol");
+ LilvNode* pset_value = lilv_new_uri(_world.world, NS_PSET "value");
+ LilvNode* preset = lilv_new_uri(_world.world, r.uri.c_str());
+
+ LilvNodes* ports = lilv_world_find_nodes(_world.world, preset, lv2_port, NULL);
+ LILV_FOREACH(nodes, i, ports) {
+ const LilvNode* port = lilv_nodes_get(ports, i);
+ const LilvNode* symbol = get_value(_world.world, port, lv2_symbol);
+ const LilvNode* value = get_value(_world.world, port, pset_value);
+ if (value && lilv_node_is_float(value)) {
+ set_parameter(_port_indices[lilv_node_as_string(symbol)],
+ lilv_node_as_float(value));
+ }
+ }
+ lilv_nodes_free(ports);
+
+ lilv_node_free(preset);
+ lilv_node_free(pset_value);
+ lilv_node_free(lv2_symbol);
+ lilv_node_free(lv2_port);
+
+ return true;
+}
+
+std::string
+LV2Plugin::do_save_preset(string /*name*/)
+{
+ return "";
+}
+
+void
+LV2Plugin::do_remove_preset(string /*name*/)
+{}
+
+bool
+LV2Plugin::has_editor() const
+{
+ return _impl->ui != NULL;
+}
+
+void
+LV2Plugin::set_insert_info(const PluginInsert* insert)
+{
+ _insert_id = insert->id();
+}
+
+int
+LV2Plugin::set_state(const XMLNode& node, int version)
+{
+ XMLNodeList nodes;
+ const XMLProperty* prop;
+ XMLNodeConstIterator iter;
+ XMLNode* child;
+ const char* sym;
+ const char* value;
+ uint32_t port_id;
+ LocaleGuard lg(X_("POSIX"));
+
+ if (node.name() != state_node_name()) {
+ error << _("Bad node sent to LV2Plugin::set_state") << endmsg;
+ return -1;
+ }
+
+ if (version < 3000) {
+ nodes = node.children("port");
+ } else {
+ nodes = node.children("Port");
+ }
+
+ for (iter = nodes.begin(); iter != nodes.end(); ++iter) {
+
+ child = *iter;
+
+ if ((prop = child->property("symbol")) != 0) {
+ sym = prop->value().c_str();
+ } else {
+ warning << _("LV2: port has no symbol, ignored") << endmsg;
+ continue;
+ }
+
+ map<string, uint32_t>::iterator i = _port_indices.find(sym);
+
+ if (i != _port_indices.end()) {
+ port_id = i->second;
+ } else {
+ warning << _("LV2: port has unknown index, ignored") << endmsg;
+ continue;
+ }
+
+ if ((prop = child->property("value")) != 0) {
+ value = prop->value().c_str();
+ } else {
+ warning << _("LV2: port has no value, ignored") << endmsg;
+ continue;
+ }
+
+ set_parameter(port_id, atof(value));
+ }
+
+ if ((prop = node.property("state-file")) != 0) {
+ std::string state_path = Glib::build_filename(_session.plugins_dir(),
+ prop->value());
+
+ cout << "LV2 state path " << state_path << endl;
+
+ // Get LV2 Persist extension data from plugin instance
+ LV2_Persist* persist = (LV2_Persist*)extension_data(
+ "http://lv2plug.in/ns/ext/persist");
+ if (persist) {
+ cout << "Loading LV2 state from " << state_path << endl;
+ RDFF file = rdff_open(state_path.c_str(), false);
+ LV2PersistState state(_uri_map);
+ state.read(file);
+ persist->restore(_impl->instance->lv2_handle,
+ &LV2Plugin::lv2_persist_retrieve_callback,
+ &state);
+ rdff_close(file);
+ } else {
+ warning << string_compose(
+ _("Plugin \"%1\% failed to return LV2 persist data"),
+ unique_id());
+ }
+ }
+
+ latency_compute_run();
+
+ return Plugin::set_state(node, version);
+}
+
+int
+LV2Plugin::get_parameter_descriptor(uint32_t which, ParameterDescriptor& desc) const
+{
+ const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, which);
+
+ LilvNode *def, *min, *max;
+ lilv_port_get_range(_impl->plugin, port, &def, &min, &max);
+
+ desc.integer_step = lilv_port_has_property(_impl->plugin, port, _world.integer);
+ desc.toggled = lilv_port_has_property(_impl->plugin, port, _world.toggled);
+ desc.logarithmic = lilv_port_has_property(_impl->plugin, port, _world.logarithmic);
+ desc.sr_dependent = lilv_port_has_property(_impl->plugin, port, _world.srate);
+ desc.label = lilv_node_as_string(lilv_port_get_name(_impl->plugin, port));
+ desc.lower = min ? lilv_node_as_float(min) : 0.0f;
+ desc.upper = max ? lilv_node_as_float(max) : 1.0f;
+ desc.min_unbound = false; // TODO: LV2 extension required
+ desc.max_unbound = false; // TODO: LV2 extension required
+
+ if (desc.integer_step) {
+ desc.step = 1.0;
+ desc.smallstep = 0.1;
+ desc.largestep = 10.0;
+ } else {
+ const float delta = desc.upper - desc.lower;
+ desc.step = delta / 1000.0f;
+ desc.smallstep = delta / 10000.0f;
+ desc.largestep = delta / 10.0f;
+ }
+
+ lilv_node_free(def);
+ lilv_node_free(min);
+ lilv_node_free(max);
+
+ return 0;
+}
+
+string
+LV2Plugin::describe_parameter(Evoral::Parameter which)
+{
+ if (( which.type() == PluginAutomation) && ( which.id() < parameter_count()) ) {
+ LilvNode* name = lilv_port_get_name(_impl->plugin,
+ lilv_plugin_get_port_by_index(_impl->plugin, which.id()));
+ string ret(lilv_node_as_string(name));
+ lilv_node_free(name);
+ return ret;
+ } else {
+ return "??";
+ }
+}
+
+framecnt_t
+LV2Plugin::signal_latency() const
+{
+ if (_latency_control_port) {
+ return (framecnt_t)floor(*_latency_control_port);
+ } else {
+ return 0;
+ }
+}
+
+set<Evoral::Parameter>
+LV2Plugin::automatable() const
+{
+ set<Evoral::Parameter> ret;
+
+ for (uint32_t i = 0; i < parameter_count(); ++i) {
+ if (parameter_is_input(i) && parameter_is_control(i)) {
+ ret.insert(ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
+ }
+ }
+
+ return ret;
+}
+
+void
+LV2Plugin::activate()
+{
+ DEBUG_TRACE(DEBUG::LV2, string_compose("%1 activate\n", name()));
+
+ if (!_was_activated) {
+ lilv_instance_activate(_impl->instance);
+ _was_activated = true;
+ }
+}
+
+void
+LV2Plugin::deactivate()
+{
+ DEBUG_TRACE(DEBUG::LV2, string_compose("%1 deactivate\n", name()));
+
+ if (_was_activated) {
+ lilv_instance_deactivate(_impl->instance);
+ _was_activated = false;
+ }
+}
+
+void
+LV2Plugin::cleanup()
+{
+ DEBUG_TRACE(DEBUG::LV2, string_compose("%1 cleanup\n", name()));
+
+ activate();
+ deactivate();
+ lilv_instance_free(_impl->instance);
+ _impl->instance = NULL;
+}
+
+int
+LV2Plugin::connect_and_run(BufferSet& bufs,
+ ChanMapping in_map, ChanMapping out_map,
+ pframes_t nframes, framecnt_t offset)
+{
+ DEBUG_TRACE(DEBUG::LV2, string_compose("%1 run %2 offset %3\n", name(), nframes, offset));
+ Plugin::connect_and_run(bufs, in_map, out_map, nframes, offset);
+
+ cycles_t then = get_cycles();
+
+ uint32_t audio_in_index = 0;
+ uint32_t audio_out_index = 0;
+ uint32_t midi_in_index = 0;
+ uint32_t midi_out_index = 0;
+ for (uint32_t port_index = 0; port_index < parameter_count(); ++port_index) {
+ if (parameter_is_audio(port_index)) {
+ if (parameter_is_input(port_index)) {
+ const uint32_t buf_index = in_map.get(DataType::AUDIO, audio_in_index++);
+ lilv_instance_connect_port(_impl->instance, port_index,
+ bufs.get_audio(buf_index).data(offset));
+ } else if (parameter_is_output(port_index)) {
+ const uint32_t buf_index = out_map.get(DataType::AUDIO, audio_out_index++);
+ //cerr << port_index << " : " << " AUDIO OUT " << buf_index << endl;
+ lilv_instance_connect_port(_impl->instance, port_index,
+ bufs.get_audio(buf_index).data(offset));
+ }
+ } else if (parameter_is_midi(port_index)) {
+ if (parameter_is_input(port_index)) {
+ const uint32_t buf_index = in_map.get(DataType::MIDI, midi_in_index++);
+ lilv_instance_connect_port(_impl->instance, port_index,
+ bufs.get_lv2_midi(true, buf_index).data());
+ } else if (parameter_is_output(port_index)) {
+ const uint32_t buf_index = out_map.get(DataType::MIDI, midi_out_index++);
+ lilv_instance_connect_port(_impl->instance, port_index,
+ bufs.get_lv2_midi(false, buf_index).data());
+ }
+ } else if (!parameter_is_control(port_index)) {
+ // Optional port (it'd better be if we've made it this far...)
+ lilv_instance_connect_port(_impl->instance, port_index, NULL);
+ }
+ }
+
+ run(nframes);
+
+ midi_out_index = 0;
+ for (uint32_t port_index = 0; port_index < parameter_count(); ++port_index) {
+ if (parameter_is_midi(port_index) && parameter_is_output(port_index)) {
+ const uint32_t buf_index = out_map.get(DataType::MIDI, midi_out_index++);
+ bufs.flush_lv2_midi(true, buf_index);
+ }
+ }
+
+ cycles_t now = get_cycles();
+ set_cycles((uint32_t)(now - then));
+
+ return 0;
+}
+
+bool
+LV2Plugin::parameter_is_control(uint32_t param) const
+{
+ const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, param);
+ return lilv_port_is_a(_impl->plugin, port, _world.control_class);
+}
+
+bool
+LV2Plugin::parameter_is_audio(uint32_t param) const
+{
+ const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, param);
+ return lilv_port_is_a(_impl->plugin, port, _world.audio_class);
+}
+
+bool
+LV2Plugin::parameter_is_midi(uint32_t param) const
+{
+ const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, param);
+ return lilv_port_is_a(_impl->plugin, port, _world.event_class);
+ // && lilv_port_supports_event(_impl->plugin, port, _world.midi_class);
+}
+
+bool
+LV2Plugin::parameter_is_output(uint32_t param) const
+{
+ const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, param);
+ return lilv_port_is_a(_impl->plugin, port, _world.output_class);
+}
+
+bool
+LV2Plugin::parameter_is_input(uint32_t param) const
+{
+ const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, param);
+ return lilv_port_is_a(_impl->plugin, port, _world.input_class);
+}
+
+void
+LV2Plugin::print_parameter(uint32_t param, char* buf, uint32_t len) const
+{
+ if (buf && len) {
+ if (param < parameter_count()) {
+ snprintf(buf, len, "%.3f", get_parameter(param));
+ } else {
+ strcat(buf, "0");
+ }
+ }
+}
+
+boost::shared_ptr<Plugin::ScalePoints>
+LV2Plugin::get_scale_points(uint32_t port_index) const
+{
+ const LilvPort* port = lilv_plugin_get_port_by_index(_impl->plugin, port_index);
+ LilvScalePoints* points = lilv_port_get_scale_points(_impl->plugin, port);
+
+ boost::shared_ptr<Plugin::ScalePoints> ret;
+ if (!points) {
+ return ret;
+ }
+
+ ret = boost::shared_ptr<Plugin::ScalePoints>(new ScalePoints());
+
+ LILV_FOREACH(scale_points, i, points) {
+ const LilvScalePoint* p = lilv_scale_points_get(points, i);
+ const LilvNode* label = lilv_scale_point_get_label(p);
+ const LilvNode* value = lilv_scale_point_get_value(p);
+ if (label && (lilv_node_is_float(value) || lilv_node_is_int(value))) {
+ ret->insert(make_pair(lilv_node_as_string(label),
+ lilv_node_as_float(value)));
+ }
+ }
+
+ lilv_scale_points_free(points);
+ return ret;
+}
+
+void
+LV2Plugin::run(pframes_t nframes)
+{
+ for (uint32_t i = 0; i < parameter_count(); ++i) {
+ if (parameter_is_control(i) && parameter_is_input(i)) {
+ _control_data[i] = _shadow_data[i];
+ }
+ }
+
+ lilv_instance_run(_impl->instance, nframes);
+}
+
+void
+LV2Plugin::latency_compute_run()
+{
+ if (!_latency_control_port) {
+ return;
+ }
+
+ // Run the plugin so that it can set its latency parameter
+
+ activate();
+
+ uint32_t port_index = 0;
+ uint32_t in_index = 0;
+ uint32_t out_index = 0;
+
+ const framecnt_t bufsize = 1024;
+ float buffer[bufsize];
+
+ memset(buffer, 0, sizeof(float) * bufsize);
+
+ // FIXME: Ensure plugins can handle in-place processing
+
+ port_index = 0;
+
+ while (port_index < parameter_count()) {
+ if (parameter_is_audio(port_index)) {
+ if (parameter_is_input(port_index)) {
+ lilv_instance_connect_port(_impl->instance, port_index, buffer);
+ in_index++;
+ } else if (parameter_is_output(port_index)) {
+ lilv_instance_connect_port(_impl->instance, port_index, buffer);
+ out_index++;
+ }
+ }
+ port_index++;
+ }
+
+ run(bufsize);
+ deactivate();
+}
+
+LV2World::LV2World()
+ : world(lilv_world_new())
+{
+ lilv_world_load_all(world);
+ input_class = lilv_new_uri(world, LILV_URI_INPUT_PORT);
+ output_class = lilv_new_uri(world, LILV_URI_OUTPUT_PORT);
+ control_class = lilv_new_uri(world, LILV_URI_CONTROL_PORT);
+ audio_class = lilv_new_uri(world, LILV_URI_AUDIO_PORT);
+ event_class = lilv_new_uri(world, LILV_URI_EVENT_PORT);
+ midi_class = lilv_new_uri(world, LILV_URI_MIDI_EVENT);
+ in_place_broken = lilv_new_uri(world, LILV_NS_LV2 "inPlaceBroken");
+ integer = lilv_new_uri(world, LILV_NS_LV2 "integer");
+ toggled = lilv_new_uri(world, LILV_NS_LV2 "toggled");
+ srate = lilv_new_uri(world, LILV_NS_LV2 "sampleRate");
+ gtk_gui = lilv_new_uri(world, NS_UI "GtkUI");
+ external_gui = lilv_new_uri(world, NS_UI "external");
+ logarithmic = lilv_new_uri(world, "http://lv2plug.in/ns/dev/extportinfo#logarithmic");
+}
+
+LV2World::~LV2World()
+{
+ lilv_node_free(input_class);
+ lilv_node_free(output_class);
+ lilv_node_free(control_class);
+ lilv_node_free(audio_class);
+ lilv_node_free(event_class);
+ lilv_node_free(midi_class);
+ lilv_node_free(in_place_broken);
+}
+
+LV2PluginInfo::LV2PluginInfo (void* c_plugin)
+ : _c_plugin(c_plugin)
+{
+ type = ARDOUR::LV2;
+}
+
+LV2PluginInfo::~LV2PluginInfo()
+{}
+
+PluginPtr
+LV2PluginInfo::load(Session& session)
+{
+ try {
+ PluginPtr plugin;
+
+ plugin.reset(new LV2Plugin(session.engine(), session,
+ (LilvPlugin*)_c_plugin,
+ session.frame_rate()));
+
+ plugin->set_info(PluginInfoPtr(new LV2PluginInfo(*this)));
+ return plugin;
+ } catch (failed_constructor& err) {
+ return PluginPtr((Plugin*)0);
+ }
+
+ return PluginPtr();
+}
+
+PluginInfoList*
+LV2PluginInfo::discover()
+{
+ PluginInfoList* plugs = new PluginInfoList;
+ const LilvPlugins* plugins = lilv_world_get_all_plugins(_world.world);
+
+ cerr << "LV2: Discovering " << lilv_plugins_size(plugins) << " plugins" << endl;
+
+ LILV_FOREACH(plugins, i, plugins) {
+ const LilvPlugin* p = lilv_plugins_get(plugins, i);
+ LV2PluginInfoPtr info(new LV2PluginInfo((void*)p));
+
+ LilvNode* name = lilv_plugin_get_name(p);
+ if (!name) {
+ cerr << "LV2: invalid plugin\n";
+ continue;
+ }
+
+ info->type = LV2;
+
+ info->name = string(lilv_node_as_string(name));
+ lilv_node_free(name);
+
+ const LilvPluginClass* pclass = lilv_plugin_get_class(p);
+ const LilvNode* label = lilv_plugin_class_get_label(pclass);
+ info->category = lilv_node_as_string(label);
+
+ LilvNode* author_name = lilv_plugin_get_author_name(p);
+ info->creator = author_name ? string(lilv_node_as_string(author_name)) : "Unknown";
+ lilv_node_free(author_name);
+
+ info->path = "/NOPATH"; // Meaningless for LV2
+
+ info->n_inputs.set_audio(
+ lilv_plugin_get_num_ports_of_class(
+ p, _world.input_class, _world.audio_class, NULL));
+ info->n_inputs.set_midi(
+ lilv_plugin_get_num_ports_of_class(
+ p, _world.input_class, _world.event_class, NULL));
+
+ info->n_outputs.set_audio(
+ lilv_plugin_get_num_ports_of_class(
+ p, _world.output_class, _world.audio_class, NULL));
+ info->n_outputs.set_midi(
+ lilv_plugin_get_num_ports_of_class(
+ p, _world.output_class, _world.event_class, NULL));
+
+ info->unique_id = lilv_node_as_uri(lilv_plugin_get_uri(p));
+ info->index = 0; // Meaningless for LV2
+
+ plugs->push_back(info);
+ }
+
+ cerr << "Done LV2 discovery" << endl;
+
+ return plugs;
+}
projects / ardour.git / commitdiff