fix crash at session close/exit if a midi-control-surface is used

[ardour.git] / libs / ardour / audioregion.cc

diff --git a/libs/ardour/audioregion.cc b/libs/ardour/audioregion.cc
index 2eb09ae192c1aa4c933083500101e8e51f874b49..630819d7c11cd10f5faad768036d6f1db65c5f81 100644 (file)
--- a/libs/ardour/audioregion.cc
+++ b/libs/ardour/audioregion.cc
@@ -957,6 +957,34 @@ AudioRegion::set_state (const XMLNode& node, int version)
        return _set_state (node, version, what_changed, true);
 }
 
+void
+AudioRegion::fade_range (framepos_t start, framepos_t end)
+{
+       framepos_t s, e;
+
+       switch (coverage (start, end)) {
+       case Evoral::OverlapStart:
+               s = _position;
+               e = end;
+               set_fade_in (FadeConstantPower, e - s);
+               break;
+       case Evoral::OverlapEnd:
+               s = start;
+               e = _position + _length;
+               set_fade_out (FadeConstantPower, e - s);
+               break;
+       case Evoral::OverlapInternal:
+               /* needs addressing, perhaps. Difficult to do if we can't
+                * control one edge of the fade relative to the relevant edge
+                * of the region, which we cannot - fades are currently assumed
+                * to start/end at the start/end of the region
+                */
+               break;
+       default:
+               return;
+       }
+}
+
 void
 AudioRegion::set_fade_in_shape (FadeShape shape)
 {