X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fplugin.cc;h=35e57ab63a25cce8e0fc1bc6fa52cd36cb670b5a;hb=333817557d0063b7204ca95cd40176f99d7a1f1d;hp=3bfb9e883f2b533bc425037b4a68d8bb6f66a7cb;hpb=3975355a5f7f2d795a369b091972051a50b9f331;p=ardour.git diff --git a/libs/ardour/plugin.cc b/libs/ardour/plugin.cc index 3bfb9e883f..35e57ab63a 100644 --- a/libs/ardour/plugin.cc +++ b/libs/ardour/plugin.cc @@ -62,12 +62,13 @@ using namespace std; using namespace ARDOUR; using namespace PBD; -PBD::Signal0 Plugin::PresetFileExists; - Plugin::Plugin (AudioEngine& e, Session& s) : _engine (e) , _session (s) , _cycles (0) + , _have_presets (false) + , _have_pending_stop_events (false) + , _parameter_changed_since_last_preset (false) { } @@ -78,244 +79,41 @@ Plugin::Plugin (const Plugin& other) , _session (other._session) , _info (other._info) , _cycles (0) - , presets (other.presets) + , _have_presets (false) + , _have_pending_stop_events (false) + , _parameter_changed_since_last_preset (false) { + } Plugin::~Plugin () { -} - -const Plugin::PresetRecord* -Plugin::preset_by_label(const string& label) -{ - // FIXME: O(n) - for (map::const_iterator i = presets.begin(); i != presets.end(); ++i) { - if (i->second.label == label) { - return &i->second; - } - } - return NULL; -} - -const Plugin::PresetRecord* -Plugin::preset_by_uri(const string& uri) -{ - map::const_iterator pr = presets.find(uri); - if (pr != presets.end()) { - return &pr->second; - } else { - return NULL; - } -} - -vector -Plugin::get_presets() -{ - vector result; - uint32_t id; - std::string unique (unique_id()); - - /* XXX problem: AU plugins don't have numeric ID's. - Solution: they have a different method of providing presets. - XXX sub-problem: implement it. - */ - - if (!isdigit (unique[0])) { - return result; - } - - id = atol (unique.c_str()); - - lrdf_uris* set_uris = lrdf_get_setting_uris(id); - - if (set_uris) { - for (uint32_t i = 0; i < (uint32_t) set_uris->count; ++i) { - if (char* label = lrdf_get_label(set_uris->items[i])) { - PresetRecord rec(set_uris->items[i], label); - result.push_back(rec); - presets.insert(std::make_pair(set_uris->items[i], rec)); - } - } - lrdf_free_uris(set_uris); - } - - return result; -} - -bool -Plugin::load_preset(const string& preset_uri) -{ - lrdf_defaults* defs = lrdf_get_setting_values(preset_uri.c_str()); - - if (defs) { - for (uint32_t i = 0; i < (uint32_t) defs->count; ++i) { - // The defs->items[i].pid < defs->count check is to work around - // a bug in liblrdf that saves invalid values into the presets file. - if (((uint32_t) defs->items[i].pid < (uint32_t) defs->count) && parameter_is_input (defs->items[i].pid)) { - set_parameter(defs->items[i].pid, defs->items[i].value); - } - } - lrdf_free_setting_values(defs); - } - - return true; -} - -/* XXX: should be in liblrdf */ -static void -lrdf_remove_preset (const char *source, const char *setting_uri) -{ - lrdf_statement p; - lrdf_statement *q; - lrdf_statement *i; - char setting_uri_copy[64]; - char buf[64]; - strncpy(setting_uri_copy, setting_uri, sizeof(setting_uri_copy)); - - p.subject = setting_uri_copy; - strncpy(buf, LADSPA_BASE "hasPortValue", sizeof(buf)); - p.predicate = buf; - p.object = NULL; - q = lrdf_matches(&p); - - p.predicate = NULL; - p.object = NULL; - for (i = q; i; i = i->next) { - p.subject = i->object; - lrdf_remove_matches(&p); - } - - lrdf_free_statements(q); - - p.subject = NULL; - strncpy(buf, LADSPA_BASE "hasSetting", sizeof(buf)); - p.predicate = buf; - p.object = setting_uri_copy; - lrdf_remove_matches(&p); - - p.subject = setting_uri_copy; - p.predicate = NULL; - p.object = NULL; - lrdf_remove_matches (&p); } void -Plugin::remove_preset (string name, string domain) +Plugin::remove_preset (string name) { - string const envvar = preset_envvar (); - if (envvar.empty()) { - warning << _("Could not locate HOME. Preset not removed.") << endmsg; - return; - } - - Plugin::PresetRecord const * p = preset_by_label (name); - if (!p) { - return; - } - - string const source = preset_source (envvar, domain); - lrdf_remove_preset (source.c_str(), p->uri.c_str ()); - - presets.erase (p->uri); - - write_preset_file (envvar, domain); + do_remove_preset (name); + _presets.erase (preset_by_label (name)->uri); + _last_preset.uri = ""; + _parameter_changed_since_last_preset = false; PresetRemoved (); /* EMIT SIGNAL */ } -string -Plugin::preset_envvar () const -{ - char* envvar; - if ((envvar = getenv ("HOME")) == 0) { - return ""; - } - - return envvar; -} - -string -Plugin::preset_source (string envvar, string domain) const +/** @return PresetRecord with empty URI on failure */ +Plugin::PresetRecord +Plugin::save_preset (string name) { - return string_compose ("file:%1/.%2/rdf/ardour-presets.n3", envvar, domain); -} - -bool -Plugin::write_preset_file (string envvar, string domain) -{ - string path = string_compose("%1/.%2", envvar, domain); - if (g_mkdir_with_parents (path.c_str(), 0775)) { - warning << string_compose(_("Could not create %1. Preset not saved. (%2)"), path, strerror(errno)) << endmsg; - return false; - } - - path += "/rdf"; - if (g_mkdir_with_parents (path.c_str(), 0775)) { - warning << string_compose(_("Could not create %1. Preset not saved. (%2)"), path, strerror(errno)) << endmsg; - return false; - } + string const uri = do_save_preset (name); - string const source = preset_source (envvar, domain); - - if (lrdf_export_by_source (source.c_str(), source.substr(5).c_str())) { - warning << string_compose(_("Error saving presets file %1."), source) << endmsg; - return false; + if (!uri.empty()) { + _presets.insert (make_pair (uri, PresetRecord (uri, name))); + PresetAdded (); /* EMIT SIGNAL */ } - return true; -} - -bool -Plugin::save_preset (string name, string domain) -{ - lrdf_portvalue portvalues[parameter_count()]; - lrdf_defaults defaults; - uint32_t id; - std::string unique (unique_id()); - - /* XXX problem: AU plugins don't have numeric ID's. - Solution: they have a different method of providing/saving presets. - XXX sub-problem: implement it. - */ - - if (!isdigit (unique[0])) { - return false; - } - - id = atol (unique.c_str()); - - defaults.count = parameter_count(); - defaults.items = portvalues; - - for (uint32_t i = 0; i < parameter_count(); ++i) { - if (parameter_is_input (i)) { - portvalues[i].pid = i; - portvalues[i].value = get_parameter(i); - } - } - - string const envvar = preset_envvar (); - if (envvar.empty()) { - warning << _("Could not locate HOME. Preset not saved.") << endmsg; - return false; - } - - string const source = preset_source (envvar, domain); - - char* uri = lrdf_add_preset (source.c_str(), name.c_str(), id, &defaults); - - /* XXX: why is the uri apparently kept as the key in the `presets' map and also in the PresetRecord? */ - - presets.insert (make_pair (uri, PresetRecord (uri, name))); - free (uri); - - bool const r = write_preset_file (envvar, domain); - - PresetAdded (); /* EMIT SIGNAL */ - - return r; + return PresetRecord (uri, name); } PluginPtr @@ -393,4 +191,131 @@ Plugin::input_streams () const return ChanCount::ZERO; } +const Plugin::PresetRecord * +Plugin::preset_by_label (const string& label) +{ + // FIXME: O(n) + for (map::const_iterator i = _presets.begin(); i != _presets.end(); ++i) { + if (i->second.label == label) { + return &i->second; + } + } + + return 0; +} + +const Plugin::PresetRecord * +Plugin::preset_by_uri (const string& uri) +{ + map::const_iterator pr = _presets.find (uri); + if (pr != _presets.end()) { + return &pr->second; + } else { + return 0; + } +} + +int +Plugin::connect_and_run (BufferSet& bufs, + ChanMapping in_map, ChanMapping out_map, + pframes_t nframes, framecnt_t offset) +{ + if (bufs.count().n_midi() > 0) { + + /* Track notes that we are sending to the plugin */ + MidiBuffer& b = bufs.get_midi (0); + bool looped; + _tracker.track (b.begin(), b.end(), looped); + + if (_have_pending_stop_events) { + /* Transmit note-offs that are pending from the last transport stop */ + bufs.merge_from (_pending_stop_events, 0); + _have_pending_stop_events = false; + } + } + return 0; +} + +void +Plugin::realtime_handle_transport_stopped () +{ + /* Create note-offs for any active notes and put them in _pending_stop_events, to be picked + up on the next call to connect_and_run (). + */ + + _pending_stop_events.ensure_buffers (DataType::MIDI, 1, 4096); + _pending_stop_events.get_midi(0).clear (); + _tracker.resolve_notes (_pending_stop_events.get_midi (0), 0); + _have_pending_stop_events = true; +} + +vector +Plugin::get_presets () +{ + if (!_have_presets) { + find_presets (); + _have_presets = true; + } + + vector p; + for (map::const_iterator i = _presets.begin(); i != _presets.end(); ++i) { + p.push_back (i->second); + } + + return p; +} + +/** Set parameters using a preset */ +bool +Plugin::load_preset (PresetRecord r) +{ + _last_preset = r; + _parameter_changed_since_last_preset = false; + + PresetLoaded (); /* EMIT SIGNAL */ + return true; +} + +/** @param val `plugin' value */ +void +Plugin::set_parameter (uint32_t which, float val) +{ + _parameter_changed_since_last_preset = true; + ParameterChanged (which, val); /* EMIT SIGNAL */ +} + +int +Plugin::set_state (const XMLNode& node, int version) +{ + XMLProperty const * p = node.property (X_("last-preset-uri")); + if (p) { + _last_preset.uri = p->value (); + } + + p = node.property (X_("last-preset-label")); + if (p) { + _last_preset.label = p->value (); + } + + p = node.property (X_("parameter-changed-since-last-preset")); + if (p) { + _parameter_changed_since_last_preset = string_is_affirmative (p->value ()); + } + + return 0; +} + +XMLNode & +Plugin::get_state () +{ + XMLNode* root = new XMLNode (state_node_name ()); + LocaleGuard lg (X_("POSIX")); + + root->add_property (X_("last-preset-uri"), _last_preset.uri); + root->add_property (X_("last-preset-label"), _last_preset.label); + root->add_property (X_("parameter-changed-since-last-preset"), _parameter_changed_since_last_preset ? X_("yes") : X_("no")); + + add_state (root); + return *root; +}