Outline RTA Manager API

gtk2_ardour/ardour_ui_dependents.cc

@@ -53,6 +53,7 @@
 #include "keyboard.h"
 #include "keyeditor.h"
 #include "rc_option_editor.h"
+#include "rta_manager.h"
 #include "route_params_ui.h"
 #include "trigger_ui.h"
 #include "step_entry.h"
@@ -133,6 +134,8 @@ ARDOUR_UI::connect_dependents_to_session (ARDOUR::Session *s)
 	trigger_page->set_session (s);
 	meterbridge->set_session (s);
 
+	RTAManager::instance ()->set_session (s);
+
 	/* its safe to do this now */
 
 	BootMessage (_("Reload Session History"));

gtk2_ardour/ardour_ui_ed.cc

@@ -76,6 +76,7 @@
 #include "location_ui.h"
 #include "main_clock.h"
 #include "rc_option_editor.h"
+#include "rta_manager.h"
 #include "rta_window.h"
 #include "virtual_keyboard_window.h"
 
@@ -1056,6 +1057,7 @@ ARDOUR_UI::save_ardour_state ()
 			vkstate.add_child_nocopy (virtual_keyboard_window.get_state ());
 			_session->add_instant_xml (vkstate);
 		}
+		_session->add_instant_xml (RTAManager::instance()->get_state());
 	}
 
 	/* save current Window settings and sizes for new sessions */
@@ -1079,6 +1081,7 @@ ARDOUR_UI::save_ardour_state ()
 			vkstate.add_child_nocopy (virtual_keyboard_window.get_state ());
 			Config->add_instant_xml (vkstate);
 		}
+		Config->add_instant_xml (RTAManager::instance()->get_state());
 	}
 
 	delete &enode;

gtk2_ardour/rta_manager.cc

@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2025 Robin Gareus <robin@gareus.org>
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef WAF_BUILD
+#include "gtk2ardour-config.h"
+#endif
+
+#include "ardour/rt_safe_delete.h"
+#include "ardour/session.h"
+
+#include "gui_thread.h"
+#include "rta_manager.h"
+#include "timers.h"
+#include "ui_config.h"
+
+using namespace ARDOUR;
+
+RTAManager* RTAManager::_instance = 0;
+
+RTAManager*
+RTAManager::instance ()
+{
+	if (!_instance) {
+		_instance = new RTAManager;
+	}
+	return _instance;
+}
+
+RTAManager::RTAManager ()
+{
+}
+
+RTAManager::~RTAManager ()
+{
+}
+
+XMLNode&
+RTAManager::get_state () const
+{
+	XMLNode* node = new XMLNode ("RTAManager");
+	return *node;
+}
+
+void
+RTAManager::set_session (ARDOUR::Session* s)
+{
+	if (!s) {
+		return;
+	}
+	SessionHandlePtr::set_session (s);
+
+	if (_session->master_out ()) {
+		attach (_session->master_out ());
+	}
+	_update_connection = Timers::super_rapid_connect (sigc::mem_fun (*this, &RTAManager::run_rta));
+}
+
+void
+RTAManager::session_going_away ()
+{
+	ENSURE_GUI_THREAD (*this, &RTAManager::session_going_away);
+	_update_connection.disconnect ();
+
+	SessionHandlePtr::session_going_away ();
+	_session = 0;
+}
+
+void
+RTAManager::set_active (bool en)
+{
+}
+
+void
+RTAManager::attach (std::shared_ptr<ARDOUR::Route> route)
+{
+}
+
+void
+RTAManager::remove (std::shared_ptr<ARDOUR::Route> route)
+{
+}
+
+bool
+RTAManager::attached (std::shared_ptr<ARDOUR::Route> route) const
+{
+	return false;
+}
+
+void
+RTAManager::run_rta ()
+{
+}

gtk2_ardour/rta_manager.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2025 Robin Gareus <robin@gareus.org>
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#pragma once
+
+#include "ardour/ardour.h"
+#include "ardour/dsp_filter.h"
+#include "ardour/session_handle.h"
+#include "ardour/types.h"
+
+class RTAManager
+	: public ARDOUR::SessionHandlePtr
+	, public PBD::ScopedConnectionList
+{
+public:
+	static RTAManager* instance ();
+	~RTAManager ();
+
+	void set_session (ARDOUR::Session*);
+	XMLNode& get_state () const;
+
+	void attach (std::shared_ptr<ARDOUR::Route>);
+	void remove (std::shared_ptr<ARDOUR::Route>);
+	bool attached (std::shared_ptr<ARDOUR::Route>) const;
+
+	void run_rta ();
+	void set_active (bool);
+
+private:
+	RTAManager ();
+	static RTAManager* _instance;
+
+	void session_going_away ();
+
+	sigc::connection _update_connection;
+};

gtk2_ardour/wscript

@@ -268,6 +268,7 @@ gtk2_ardour_sources = [
         'route_processor_selection.cc',
         'route_time_axis.cc',
         'route_ui.cc',
+        'rta_manager.cc',
         'rta_window.cc',
         'ruler_dialog.cc',
         'save_as_dialog.cc',