massive changes to waf build scripts so that nearly everything "should" be working now except for i18n (OSC is not quite right) ; some preliminary work on post-main-out handling, incomplete; a couple of fixes from -Wall and valgrind

git-svn-id: svn://localhost/ardour2/branches/3.0@5371 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 10 insertions, 3 deletions

diff --git a/libs/ardour/ardour/delivery.h b/libs/ardour/ardour/delivery.h
index e46823d075..5cb11a9348 100644
--- a/libs/ardour/ardour/delivery.h
+++ b/libs/ardour/ardour/delivery.h
@@ -34,13 +34,20 @@ class Panner;
 class Delivery : public IOProcessor {
 public:
 	enum Role {
-		Insert = 0x1,
+		/* main outputs - delivers out-of-place to port buffers, and cannot be removed */
+		Main   = 0x1,
+		/* send - delivers to port buffers, leaves input buffers untouched */
 		Send   = 0x2,
-		Listen = 0x4,
-		Main   = 0x8,
+		/* insert - delivers to port buffers and receives in-place from port buffers */
+		Insert = 0x4,
+		/* listen - internal send used only to deliver to control/monitor bus */
+		Listen = 0x8,
+		/* aux - internal send used to deliver to any bus, by user request */
 		Aux    = 0x10
 	};
 
+	static bool role_requires_output_ports (Role r) { return r == Main || r == Send || r == Insert; }
+
 	/* Delivery to an existing output */
 
 	Delivery (Session& s, boost::shared_ptr<IO> io, boost::shared_ptr<MuteMaster> mm, const std::string& name, Role);