X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=gtk2_ardour%2Fengine_dialog.cc;h=4b47fe1baf079482e692a4f8384df3acce0c4d26;hb=577140c0dde3b10945221971effd9f665188182c;hp=48cf35ba8f8b5ab06a7ab2b9528e04f87048260a;hpb=0077923dea412ecbd0abe8734237597dd59c2f5a;p=ardour.git

diff --git a/gtk2_ardour/engine_dialog.cc b/gtk2_ardour/engine_dialog.cc
index 48cf35ba8f..4b47fe1baf 100644
--- a/gtk2_ardour/engine_dialog.cc
+++ b/gtk2_ardour/engine_dialog.cc
@@ -1900,7 +1900,7 @@ EngineControl::maybe_display_saved_state ()
 XMLNode&
 EngineControl::get_state ()
 {
-	LocaleGuard lg (X_("C"));
+	LocaleGuard lg;
 
 	XMLNode* root = new XMLNode ("AudioMIDISetup");
 	std::string path;
@@ -1970,9 +1970,9 @@ EngineControl::set_state (const XMLNode& root)
 {
 	XMLNodeList          clist, cclist;
 	XMLNodeConstIterator citer, cciter;
-	XMLNode* child;
-	XMLNode* grandchild;
-	XMLProperty* prop = NULL;
+	XMLNode const * child;
+	XMLNode const * grandchild;
+	XMLProperty const * prop = NULL;
 
 	fprintf (stderr, "EngineControl::set_state\n");
 
@@ -2367,6 +2367,8 @@ EngineControl::push_state_to_backend (bool start)
 			change_channels = true;
 			change_latency = true;
 			change_midi = true;
+			change_buffered_io = backend->can_use_buffered_io();
+			change_channels = true;
 			change_nperiods = backend->can_set_period_size() && get_popdown_string_count (nperiods_combo) > 0;
 		}
 
@@ -2428,7 +2430,7 @@ EngineControl::push_state_to_backend (bool start)
 	if (change_driver || change_device || change_channels || change_nperiods ||
 			(change_latency && !backend->can_change_systemic_latency_when_running ()) ||
 			(change_rate && !backend->can_change_sample_rate_when_running()) ||
-			change_midi ||
+			change_midi || change_buffered_io ||
 			(change_bufsize && !backend->can_change_buffer_size_when_running())) {
 		restart_required = true;
 	} else {
@@ -2771,7 +2773,8 @@ void
 EngineControl::set_desired_sample_rate (uint32_t sr)
 {
 	_desired_sample_rate = sr;
-	if (ARDOUR::AudioEngine::instance()->running()) {
+	if (ARDOUR::AudioEngine::instance ()->running ()
+			&& ARDOUR::AudioEngine::instance ()->sample_rate () != sr) {
 		stop_engine ();
 	}
 	device_changed ();