add stubs and enums to access "well-known" send controls

3 files changed, 81 insertions, 2 deletions

diff --git a/libs/ardour/ardour/route.h b/libs/ardour/ardour/route.h
index 6bc8869d92..829bf13298 100644
--- a/libs/ardour/ardour/route.h
+++ b/libs/ardour/ardour/route.h
@@ -553,7 +553,17 @@ class LIBARDOUR_API Route : public SessionObject, public Automatable, public Rou
          */
         std::string comp_speed_name (uint32_t mode) const;
 
-	void protect_automation ();
+        /* "well-known" controls for sends to well-known busses in this route. Any or all may
+         * be null.
+         *
+         * In Mixbus, these are the sends that connect to the mixbusses.
+         * In Ardour, these are user-created sends that connect to user-created
+         * Aux busses.
+         */
+        boost::shared_ptr<AutomationControl> send_level_controllable (uint32_t n) const;
+        boost::shared_ptr<AutomationControl> send_enable_controllable (uint32_t n) const;
+
+        void protect_automation ();
 
 	enum {
 		/* These numbers are taken from MIDI Machine Control,
diff --git a/libs/ardour/ardour/types.h b/libs/ardour/ardour/types.h
index a7f9b5b5ff..c0d9f10ab2 100644
--- a/libs/ardour/ardour/types.h
+++ b/libs/ardour/ardour/types.h
@@ -154,6 +154,38 @@ namespace ARDOUR {
 		CompMakeup,
 		CompRedux,
 		CompEnable,
+		BusSend1Level,
+		BusSend1Enable,
+		BusSend2Level,
+		BusSend2Enable,
+		BusSend3Level,
+		BusSend3Enable,
+		BusSend4Level,
+		BusSend4Enable,
+		BusSend5Level,
+		BusSend5Enable,
+		BusSend6Level,
+		BusSend6Enable,
+		BusSend7Level,
+		BusSend7Enable,
+		BusSend8Level,
+		BusSend8Enable,
+		BusSend9Level,
+		BusSend9Enable,
+		BusSend10Level,
+		BusSend10Enable,
+		BusSend11Level,
+		BusSend11Enable,
+		BusSend12Level,
+		BusSend12Enable,
+		BusSend13Level,
+		BusSend13Enable,
+		BusSend14Level,
+		BusSend14Enable,
+		BusSend15Level,
+		BusSend15Enable,
+		BusSend16Level,
+		BusSend16LeEnable,
 	};
 
 	enum AutoState {
@@ -768,4 +800,3 @@ using ARDOUR::framepos_t;
 
 
 #endif /* __ardour_types_h__ */
-
diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index 75f58b528a..8549bb34a6 100644
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -5496,3 +5496,41 @@ Route::comp_speed_name (uint32_t mode) const
 	return _("???");
 #endif
 }
+
+boost::shared_ptr<AutomationControl>
+Route::send_level_controllable (uint32_t n) const
+{
+#ifdef  MIXBUS
+	boost::shared_ptr<ARDOUR::PluginInsert> plug = ch_post();
+	assert (plug);
+
+	if (n >= 8) {
+		/* no such bus */
+		return boost::shared_ptr<AutomationControl>();
+	}
+
+	const uint32_t port_id = port_channel_post_aux1_level + (2*n); // gtk2_ardour/mixbus_ports.h
+	return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (plug->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, port_id)));
+#else
+	return boost::shared_ptr<AutomationControl>();
+#endif
+}
+
+boost::shared_ptr<AutomationControl>
+Route::send_enable_controllable (uint32_t n) const
+{
+#ifdef  MIXBUS
+	boost::shared_ptr<ARDOUR::PluginInsert> plug = ch_post();
+	assert (plug);
+
+	if (n >= 8) {
+		/* no such bus */
+		return boost::shared_ptr<AutomationControl>();
+	}
+
+	const uint32_t port_id = port_channel_post_aux1_asgn + (2*n); // gtk2_ardour/mixbus_ports.h
+	return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (plug->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, port_id)));
+#else
+	return boost::shared_ptr<AutomationControl>();
+#endif
+}