Only check active_state when potentially skipping the route processing.

In the past, we skipped processing if the routes had no inputs or outputs.
But:
  A route with a generator plugin should work even if it has no inputs.
  A route with "sends" should work even if it has no outputs.

1 files changed, 6 insertions, 20 deletions

diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index 4f0f5dbc1c..6c56fb60e9 100644
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -3516,16 +3516,9 @@ Route::no_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
 		return 0;
 	}
 
-	//MB has its own output path, regardless of physical outs
-	if (!Profile->get_mixbus()) {
-		if (n_outputs().n_total() == 0) {
-			return 0;
-		}
-
-		if (!_active || n_inputs() == ChanCount::ZERO)  {
-			silence_unlocked (nframes);
-			return 0;
-		}
+	if (!_active) {
+		silence_unlocked (nframes);
+		return 0;
 	}
 
 	if (session_state_changing) {
@@ -3568,16 +3561,9 @@ Route::roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, in
 		return 0;
 	}
 
-	//MB has its own signal path, regardless of I/O -- TODO handle !active for tracks & aux-busses)
-	if (!Profile->get_mixbus()) {
-		if (n_outputs().n_total() == 0) {
-			return 0;
-		}
-
-		if (!_active || n_inputs().n_total() == 0) {
-			silence_unlocked (nframes);
-			return 0;
-		}
+	if (!_active) {
+		silence_unlocked (nframes);
+		return 0;
 	}
 
 	framepos_t unused = 0;