+++ /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 <slv2/slv2.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 ();
-
- SLV2World world;
- SLV2Value input_class; ///< Input port
- SLV2Value output_class; ///< Output port
- SLV2Value audio_class; ///< Audio port
- SLV2Value control_class; ///< Control port
- SLV2Value event_class; ///< Event port
- SLV2Value midi_class; ///< MIDI event
- SLV2Value in_place_broken;
- SLV2Value integer;
- SLV2Value toggled;
- SLV2Value srate;
- SLV2Value gtk_gui;
- SLV2Value external_gui;
- SLV2Value logarithmic;
-};
-
-static LV2World _world;
-
-struct LV2Plugin::Impl {
- Impl() : plugin(0), ui(0), ui_type(0), name(0), author(0), instance(0) {}
- SLV2Plugin plugin;
- SLV2UI ui;
- SLV2Value ui_type;
- SLV2Value name;
- SLV2Value author;
- SLV2Instance 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 = (SLV2Plugin)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;
-
- SLV2Plugin plugin = _impl->plugin;
-
- SLV2Value persist_uri = slv2_value_new_uri(_world.world, _persist_feature.URI);
- _supports_persist = slv2_plugin_has_feature(plugin, persist_uri);
- slv2_value_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 = slv2_plugin_instantiate(plugin, rate, _features);
- _impl->name = slv2_plugin_get_name(plugin);
- _impl->author = slv2_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 (slv2_plugin_has_feature(plugin, _world.in_place_broken)) {
- error << string_compose(
- _("LV2: \"%1\" cannot be used, since it cannot do inplace processing"),
- slv2_value_as_string(_impl->name)) << endmsg;
- slv2_value_free(_impl->name);
- slv2_value_free(_impl->author);
- throw failed_constructor();
- }
-
- _sample_rate = rate;
-
- const uint32_t num_ports = this->num_ports();
- const bool latent = slv2_plugin_has_latency(plugin);
- const uint32_t latency_port = (latent)
- ? slv2_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) {
- SLV2Port port = slv2_plugin_get_port_by_index(plugin, i);
- SLV2Value sym = slv2_port_get_symbol(plugin, port);
-
- // Store index in map so we can look up index by symbol
- _port_indices.insert(std::make_pair(slv2_value_as_string(sym), i));
-
- // Get range and default value if applicable
- if (parameter_is_control(i)) {
- SLV2Value def;
- slv2_port_get_range(plugin, port, &def, NULL, NULL);
- _defaults[i] = def ? slv2_value_as_float(def) : 0.0f;
- if (slv2_port_has_property(_impl->plugin, port, _world.srate)) {
- _defaults[i] *= _session.frame_rate ();
- }
- slv2_value_free(def);
-
- slv2_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;
- }
- }
-
- SLV2UIs uis = slv2_plugin_get_uis(plugin);
- if (slv2_uis_size(uis) > 0) {
-#if defined(HAVE_NEW_SLV2) and defined(HAVE_SUIL)
- // Look for embeddable UI
- SLV2Value ui_type = NULL;
- SLV2_FOREACH(uis, u, uis) {
- SLV2UI this_ui = slv2_uis_get(uis, u);
- SLV2Value this_ui_type = NULL;
- if (slv2_ui_is_supported(this_ui,
- suil_ui_supported,
- _world.gtk_gui,
- &this_ui_type)) {
- // TODO: Multiple UI support
- _ui = this_ui;
- _ui_type = this_ui_type;
- break;
- }
- }
-#else
- // Look for Gtk native UI
- for (unsigned i = 0; i < slv2_uis_size(uis); ++i) {
- SLV2UI ui = slv2_uis_get_at(uis, i);
- if (slv2_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) {
- for (unsigned i = 0; i < slv2_uis_size(uis); ++i) {
- SLV2UI ui = slv2_uis_get_at(uis, i);
- if (slv2_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();
-
- slv2_instance_free(_impl->instance);
- slv2_value_free(_impl->name);
- slv2_value_free(_impl->author);
-#if defined(HAVE_NEW_SLV2) and defined(HAVE_SUIL)
- slv2_value_free(_impl->ui_type);
-#else
- /* _ui_type points to a global, so leave it alone */
-#endif
- delete [] _control_data;
- delete [] _shadow_data;
-}
-
-bool
-LV2Plugin::is_external_ui() const
-{
- if (!_impl->ui) {
- return false;
- }
- return slv2_ui_is_a(_impl->ui, _world.external_gui);
-}
-
-string
-LV2Plugin::unique_id() const
-{
- return slv2_value_as_uri(slv2_plugin_get_uri(_impl->plugin));
-}
-
-const char*
-LV2Plugin::uri() const
-{
- return slv2_value_as_uri(slv2_plugin_get_uri(_impl->plugin));
-}
-
-const char*
-LV2Plugin::label() const
-{
- return slv2_value_as_string(_impl->name);
-}
-
-const char*
-LV2Plugin::name() const
-{
- return slv2_value_as_string(_impl->name);
-}
-
-const char*
-LV2Plugin::maker() const
-{
- return _impl->author ? slv2_value_as_string (_impl->author) : "Unknown";
-}
-
-uint32_t
-LV2Plugin::num_ports() const
-{
- return slv2_plugin_get_num_ports(_impl->plugin);
-}
-
-uint32_t
-LV2Plugin::parameter_count() const
-{
- return slv2_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
-{
- SLV2Port port = slv2_plugin_get_port_by_index(_impl->plugin, index);
- if (!port) {
- error << name() << ": Invalid port index " << index << endmsg;
- }
-
- SLV2Value sym = slv2_port_get_symbol(_impl->plugin, port);
- return slv2_value_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 < slv2_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 < slv2_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 slv2_instance_get_extension_data(_impl->instance, uri);
-}
-
-void*
-LV2Plugin::c_plugin ()
-{
- return _impl->plugin;
-}
-
-void*
-LV2Plugin::c_ui ()
-{
- return _impl->ui;
-}
-
-void*
-LV2Plugin::c_ui_type ()
-{
- return _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 SLV2Value
-get_value(SLV2Plugin p, SLV2Value subject, SLV2Value predicate)
-{
- SLV2Values vs = slv2_plugin_get_value_for_subject(p, subject, predicate);
- return vs ? slv2_values_get_at(vs, 0) : NULL;
-}
-
-void
-LV2Plugin::find_presets()
-{
- SLV2Value dc_title = slv2_value_new_uri(_world.world, NS_DC "title");
- SLV2Value pset_hasPreset = slv2_value_new_uri(_world.world, NS_PSET "hasPreset");
-
- SLV2Values presets = slv2_plugin_get_value(_impl->plugin, pset_hasPreset);
- for (unsigned i = 0; i < slv2_values_size(presets); ++i) {
- SLV2Value preset = slv2_values_get_at(presets, i);
- SLV2Value name = get_value(_impl->plugin, preset, dc_title);
- if (name) {
- _presets.insert(std::make_pair(slv2_value_as_string(preset),
- PresetRecord(
- slv2_value_as_string(preset),
- slv2_value_as_string(name))));
- } else {
- warning << string_compose(
- _("Plugin \"%1\% preset \"%2%\" is missing a dc:title\n"),
- unique_id(), slv2_value_as_string(preset));
- }
- }
- slv2_values_free(presets);
-
- slv2_value_free(pset_hasPreset);
- slv2_value_free(dc_title);
-}
-
-bool
-LV2Plugin::load_preset(PresetRecord r)
-{
- Plugin::load_preset(r);
-
-#ifdef HAVE_NEW_SLV2
- // New (>= 0.7.0) slv2 no longer supports SPARQL, but exposes blank nodes
- // so querying ports is possible with the simple/fast API
- SLV2Value lv2_port = slv2_value_new_uri(_world.world, NS_LV2 "port");
- SLV2Value lv2_symbol = slv2_value_new_uri(_world.world, NS_LV2 "symbol");
- SLV2Value pset_value = slv2_value_new_uri(_world.world, NS_PSET "value");
- SLV2Value preset = slv2_value_new_uri(_world.world, r.uri.c_str());
-
- SLV2Values ports = slv2_plugin_get_value_for_subject(_impl->plugin, preset, lv2_port);
- for (unsigned i = 0; i < slv2_values_size(ports); ++i) {
- SLV2Value port = slv2_values_get_at(ports, i);
- SLV2Value symbol = get_value(_impl->plugin, port, lv2_symbol);
- SLV2Value value = get_value(_impl->plugin, port, pset_value);
- if (value && slv2_value_is_float(value)) {
- set_parameter(_port_indices[slv2_value_as_string(symbol)],
- slv2_value_as_float(value));
- }
- }
- slv2_values_free(ports);
-
- slv2_value_free(preset);
- slv2_value_free(pset_value);
- slv2_value_free(lv2_symbol);
- slv2_value_free(lv2_port);
-#else
- const string query = string(
- "PREFIX lv2p: <http://lv2plug.in/ns/dev/presets#>\n"
- "PREFIX dc: <http://dublincore.org/documents/dcmi-namespace/>\n"
- "SELECT ?sym ?val WHERE { <") + r.uri + "> lv2:port ?port . "
- " ?port lv2:symbol ?sym ; lv2p:value ?val . }";
- SLV2Results values = slv2_plugin_query_sparql(_impl->plugin, query.c_str());
- for (; !slv2_results_finished(values); slv2_results_next(values)) {
- SLV2Value sym = slv2_results_get_binding_value(values, 0);
- SLV2Value val = slv2_results_get_binding_value(values, 1);
- if (slv2_value_is_float(val)) {
- uint32_t index = _port_indices[slv2_value_as_string(sym)];
- set_parameter(index, slv2_value_as_float(val));
- }
- }
- slv2_results_free(values);
-#endif
- 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
-{
- SLV2Port port = slv2_plugin_get_port_by_index(_impl->plugin, which);
-
- SLV2Value def, min, max;
- slv2_port_get_range(_impl->plugin, port, &def, &min, &max);
-
- desc.integer_step = slv2_port_has_property(_impl->plugin, port, _world.integer);
- desc.toggled = slv2_port_has_property(_impl->plugin, port, _world.toggled);
- desc.logarithmic = slv2_port_has_property(_impl->plugin, port, _world.logarithmic);
- desc.sr_dependent = slv2_port_has_property(_impl->plugin, port, _world.srate);
- desc.label = slv2_value_as_string(slv2_port_get_name(_impl->plugin, port));
- desc.lower = min ? slv2_value_as_float(min) : 0.0f;
- desc.upper = max ? slv2_value_as_float(max) : 1.0f;
- if (desc.sr_dependent) {
- desc.lower *= _session.frame_rate ();
- desc.upper *= _session.frame_rate ();
- }
-
- 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;
- }
-
- slv2_value_free(def);
- slv2_value_free(min);
- slv2_value_free(max);
-
- return 0;
-}
-
-string
-LV2Plugin::describe_parameter(Evoral::Parameter which)
-{
- if (( which.type() == PluginAutomation) && ( which.id() < parameter_count()) ) {
- SLV2Value name = slv2_port_get_name(_impl->plugin,
- slv2_plugin_get_port_by_index(_impl->plugin, which.id()));
- string ret(slv2_value_as_string(name));
- slv2_value_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) {
- slv2_instance_activate(_impl->instance);
- _was_activated = true;
- }
-}
-
-void
-LV2Plugin::deactivate()
-{
- DEBUG_TRACE(DEBUG::LV2, string_compose("%1 deactivate\n", name()));
-
- if (_was_activated) {
- slv2_instance_deactivate(_impl->instance);
- _was_activated = false;
- }
-}
-
-void
-LV2Plugin::cleanup()
-{
- DEBUG_TRACE(DEBUG::LV2, string_compose("%1 cleanup\n", name()));
-
- activate();
- deactivate();
- slv2_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++);
- slv2_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;
- slv2_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++);
- slv2_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++);
- slv2_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...)
- slv2_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
-{
- SLV2Port port = slv2_plugin_get_port_by_index(_impl->plugin, param);
- return slv2_port_is_a(_impl->plugin, port, _world.control_class);
-}
-
-bool
-LV2Plugin::parameter_is_audio(uint32_t param) const
-{
- SLV2Port port = slv2_plugin_get_port_by_index(_impl->plugin, param);
- return slv2_port_is_a(_impl->plugin, port, _world.audio_class);
-}
-
-bool
-LV2Plugin::parameter_is_midi(uint32_t param) const
-{
- SLV2Port port = slv2_plugin_get_port_by_index(_impl->plugin, param);
- return slv2_port_is_a(_impl->plugin, port, _world.event_class);
- // && slv2_port_supports_event(_impl->plugin, port, _world.midi_class);
-}
-
-bool
-LV2Plugin::parameter_is_output(uint32_t param) const
-{
- SLV2Port port = slv2_plugin_get_port_by_index(_impl->plugin, param);
- return slv2_port_is_a(_impl->plugin, port, _world.output_class);
-}
-
-bool
-LV2Plugin::parameter_is_input(uint32_t param) const
-{
- SLV2Port port = slv2_plugin_get_port_by_index(_impl->plugin, param);
- return slv2_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
-{
- SLV2Port port = slv2_plugin_get_port_by_index(_impl->plugin, port_index);
- SLV2ScalePoints points = slv2_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());
-
- for (unsigned i = 0; i < slv2_scale_points_size(points); ++i) {
- SLV2ScalePoint p = slv2_scale_points_get_at(points, i);
- SLV2Value label = slv2_scale_point_get_label(p);
- SLV2Value value = slv2_scale_point_get_value(p);
- if (label && (slv2_value_is_float(value) || slv2_value_is_int(value))) {
- ret->insert(make_pair(slv2_value_as_string(label),
- slv2_value_as_float(value)));
- }
- }
-
- slv2_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];
- }
- }
-
- slv2_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)) {
- slv2_instance_connect_port(_impl->instance, port_index, buffer);
- in_index++;
- } else if (parameter_is_output(port_index)) {
- slv2_instance_connect_port(_impl->instance, port_index, buffer);
- out_index++;
- }
- }
- port_index++;
- }
-
- run(bufsize);
- deactivate();
-}
-
-LV2World::LV2World()
- : world(slv2_world_new())
-{
- slv2_world_load_all(world);
- input_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_INPUT);
- output_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_OUTPUT);
- control_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_CONTROL);
- audio_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_AUDIO);
- event_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_EVENT);
- midi_class = slv2_value_new_uri(world, SLV2_EVENT_CLASS_MIDI);
- in_place_broken = slv2_value_new_uri(world, SLV2_NAMESPACE_LV2 "inPlaceBroken");
- integer = slv2_value_new_uri(world, SLV2_NAMESPACE_LV2 "integer");
- toggled = slv2_value_new_uri(world, SLV2_NAMESPACE_LV2 "toggled");
- srate = slv2_value_new_uri(world, SLV2_NAMESPACE_LV2 "sampleRate");
- gtk_gui = slv2_value_new_uri(world, NS_UI "GtkUI");
- external_gui = slv2_value_new_uri(world, NS_UI "external");
- logarithmic = slv2_value_new_uri(world, "http://lv2plug.in/ns/dev/extportinfo#logarithmic");
-}
-
-LV2World::~LV2World()
-{
- slv2_value_free(input_class);
- slv2_value_free(output_class);
- slv2_value_free(control_class);
- slv2_value_free(audio_class);
- slv2_value_free(event_class);
- slv2_value_free(midi_class);
- slv2_value_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,
- (SLV2Plugin)_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;
- SLV2Plugins plugins = slv2_world_get_all_plugins(_world.world);
-
- cerr << "LV2: Discovering " << slv2_plugins_size(plugins) << " plugins" << endl;
-
- for (unsigned i = 0; i < slv2_plugins_size(plugins); ++i) {
- SLV2Plugin p = slv2_plugins_get_at(plugins, i);
- LV2PluginInfoPtr info(new LV2PluginInfo(p));
-
- SLV2Value name = slv2_plugin_get_name(p);
-
- if (!name) {
- cerr << "LV2: invalid plugin\n";
- continue;
- }
-
- info->type = LV2;
-
- info->name = string(slv2_value_as_string(name));
- slv2_value_free(name);
-
- SLV2PluginClass pclass = slv2_plugin_get_class(p);
- SLV2Value label = slv2_plugin_class_get_label(pclass);
- info->category = slv2_value_as_string(label);
-
- SLV2Value author_name = slv2_plugin_get_author_name(p);
- info->creator = author_name ? string(slv2_value_as_string(author_name)) : "Unknown";
- slv2_value_free(author_name);
-
- info->path = "/NOPATH"; // Meaningless for LV2
-
- info->n_inputs.set_audio(
- slv2_plugin_get_num_ports_of_class(
- p, _world.input_class, _world.audio_class, NULL));
- info->n_inputs.set_midi(
- slv2_plugin_get_num_ports_of_class(
- p, _world.input_class, _world.event_class, NULL));
-
- info->n_outputs.set_audio(
- slv2_plugin_get_num_ports_of_class(
- p, _world.output_class, _world.audio_class, NULL));
- info->n_outputs.set_midi(
- slv2_plugin_get_num_ports_of_class(
- p, _world.output_class, _world.event_class, NULL));
-
- info->unique_id = slv2_value_as_uri(slv2_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