fixes from carl for #1158 and #1554, plus better behaviour when building the region boundary cache

git-svn-id: svn://localhost/ardour2/trunk@1694 d708f5d6-7413-0410-9779-e7cbd77b26cf

2 files changed, 30 insertions, 11 deletions

diff --git a/libs/ardour/ardour/route.h b/libs/ardour/ardour/route.h
index f3436ca8ea..442c006e9b 100644
--- a/libs/ardour/ardour/route.h
+++ b/libs/ardour/ardour/route.h
@@ -169,9 +169,9 @@ class Route : public IO
 	int copy_redirects (const Route&, Placement, uint32_t* err_streams = 0);
 	int sort_redirects (uint32_t* err_streams = 0);
 
-	void clear_redirects (void *src);
+	void clear_redirects (Placement, void *src);
 	void all_redirects_flip();
-	void all_redirects_active (bool state);
+	void all_redirects_active (Placement, bool state);
 
 	virtual nframes_t update_total_latency();
 	nframes_t signal_latency() const { return _own_latency; }
diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index edb7adfee0..091ff549ad 100644
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -112,7 +112,8 @@ Route::init ()
 
 Route::~Route ()
 {
-	clear_redirects (this);
+	clear_redirects (PreFader, this);
+	clear_redirects (PostFader, this);
 
 	for (OrderKeys::iterator i = order_keys.begin(); i != order_keys.end(); ++i) {
 		free ((void*)(i->first));
@@ -924,10 +925,13 @@ Route::add_redirects (const RedirectList& others, void *src, uint32_t* err_strea
 	return 0;
 }
 
+/** Remove redirects with a given placement.
+ * @param p Placement of redirects to remove.
+ */
 void
-Route::clear_redirects (void *src)
+Route::clear_redirects (Placement p, void *src)
 {
-	uint32_t old_rmo = redirect_max_outs;
+	const uint32_t old_rmo = redirect_max_outs;
 
 	if (!_session.engine().connected()) {
 		return;
@@ -935,13 +939,22 @@ Route::clear_redirects (void *src)
 
 	{
 		Glib::RWLock::WriterLock lm (redirect_lock);
-		RedirectList::iterator i;
-		for (i = _redirects.begin(); i != _redirects.end(); ++i) {
-			(*i)->drop_references ();
+		RedirectList new_list;
+		
+		for (RedirectList::iterator i = _redirects.begin(); i != _redirects.end(); ++i) {
+			if ((*i)->placement() == p) {
+				/* it's the placement we want to get rid of */
+				(*i)->drop_references ();
+			} else {
+				/* it's a different placement, so keep it */
+				new_list.push_back (*i);
+			}
 		}
-		_redirects.clear ();
+		
+		_redirects = new_list;
 	}
 
+	/* FIXME: can't see how this test can ever fire */
 	if (redirect_max_outs != old_rmo) {
 		reset_panner ();
 	}
@@ -1309,8 +1322,12 @@ Route::all_redirects_flip ()
 	}
 }
 
+/** Set all redirects with a given placement to a given active state.
+ * @param p Placement of redirects to change.
+ * @param state New active state for those redirects.
+ */
 void
-Route::all_redirects_active (bool state)
+Route::all_redirects_active (Placement p, bool state)
 {
 	Glib::RWLock::ReaderLock lm (redirect_lock);
 
@@ -1319,7 +1336,9 @@ Route::all_redirects_active (bool state)
 	}
 
 	for (RedirectList::iterator i = _redirects.begin(); i != _redirects.end(); ++i) {
-		(*i)->set_active (state, this);
+		if ((*i)->placement() == p) {
+			(*i)->set_active (state, this);
+		}
 	}
 }