1 files changed, 10 insertions, 0 deletions
diff --git a/src/lib/util.cc b/src/lib/util.cc
index 637030e86..8ed878561 100644
--- a/src/lib/util.cc
+++ b/src/lib/util.cc
@@ -774,3 +774,13 @@ remap (shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping m
 
 	return mapped;
 }
+
+Eyes
+increment_eyes (Eyes e)
+{
+	if (e == EYES_LEFT) {
+		return EYES_RIGHT;
+	}
+
+	return EYES_LEFT;
+}