Hopefully fix disappearing MIDI recorded regions on the first record of a new session.

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

diff --git a/libs/ardour/internal_send.cc b/libs/ardour/internal_send.cc
index 8ec543030870a76c09a37892572e7ebe0af8519e..bdfcf6d2496b26de55535a9eb51e0a39bedd94a1 100644 (file)
--- a/libs/ardour/internal_send.cc
+++ b/libs/ardour/internal_send.cc
@@ -32,9 +32,8 @@ using namespace PBD;
 using namespace ARDOUR;
 using namespace std;
 
-InternalSend::InternalSend (Session& s, boost::shared_ptr<MuteMaster> mm, boost::shared_ptr<Route> sendto, Delivery::Role role)
-       : Send (s, mm, role)
-       , target (0)
+InternalSend::InternalSend (Session& s, boost::shared_ptr<Pannable> p, boost::shared_ptr<MuteMaster> mm, boost::shared_ptr<Route> sendto, Delivery::Role role)
+       : Send (s, p, mm, role)
 {
         if (sendto) {
                 if (use_target (sendto)) {
@@ -46,18 +45,20 @@ InternalSend::InternalSend (Session& s, boost::shared_ptr<MuteMaster> mm, boost:
 InternalSend::~InternalSend ()
 {
        if (_send_to) {
-               _send_to->release_return_buffer ();
+               _send_to->remove_send_from_internal_return (this);
        }
 }
 
 int
 InternalSend::use_target (boost::shared_ptr<Route> sendto)
 {
+       if (_send_to) {
+               _send_to->remove_send_from_internal_return (this);
+       }
+       
         _send_to = sendto;
 
-        if ((target = _send_to->get_return_buffer ()) == 0) {
-                return -1;
-        }
+        _send_to->add_send_to_internal_return (this);
         
         set_name (sendto->name());
         _send_to_id = _send_to->id();
@@ -74,16 +75,15 @@ InternalSend::use_target (boost::shared_ptr<Route> sendto)
 void
 InternalSend::send_to_going_away ()
 {
-       target = 0;
         target_connections.drop_connections ();
        _send_to.reset ();
        _send_to_id = "0";
 }
 
 void
-InternalSend::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, nframes_t nframes, bool)
+InternalSend::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool)
 {
-       if ((!_active && !_pending_active) || !target || !_send_to) {
+       if ((!_active && !_pending_active) || !_send_to) {
                _meter->reset ();
                return;
        }
@@ -138,23 +138,16 @@ InternalSend::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame
                }
        }
 
-       /* deliver to target */
-
-       target->merge_from (mixbufs, nframes);
+       /* target will pick up our output when it is ready */
 
   out:
        _active = _pending_active;
 }
 
 int
-InternalSend::set_block_size (nframes_t nframes)
+InternalSend::set_block_size (pframes_t nframes)
 {
        mixbufs.ensure_buffers (_configured_input, nframes);
-
-       /* ensure that our target can cope with us merging this many frames to it */
-       if (target) {
-               target->ensure_buffers (_configured_input, nframes);
-       }
         return 0;
 }