From bb12144cbfb8c06f502ce0f963edefbb6009aea9 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Thu, 6 Oct 2011 17:51:43 +0000
Subject: Use an intrusive linked list for InputPort connections.

This simplifies the code and avoids the overhead of allocating list nodes.


git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@3532 a436a847-0d15-0410-975c-d299462d15a1
---
 src/server/ConnectionImpl.cpp | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'src/server/ConnectionImpl.cpp')

diff --git a/src/server/ConnectionImpl.cpp b/src/server/ConnectionImpl.cpp
index 49c45f43..9bb0d4f5 100644
--- a/src/server/ConnectionImpl.cpp
+++ b/src/server/ConnectionImpl.cpp
@@ -66,6 +66,18 @@ ConnectionImpl::dump() const
 		<< "POLY: " << _src_port->poly() << " => " << _dst_port->poly() << endl;
 }
 
+const Raul::Path&
+ConnectionImpl::src_port_path() const
+{
+	return _src_port->path();
+}
+
+const Raul::Path&
+ConnectionImpl::dst_port_path() const
+{
+	return _dst_port->path();
+}
+
 void
 ConnectionImpl::get_sources(Context& context, uint32_t voice,
 		boost::intrusive_ptr<Buffer>* srcs, uint32_t max_num_srcs, uint32_t& num_srcs)
@@ -119,6 +131,31 @@ ConnectionImpl::queue(Context& context)
 	}
 }
 
+BufferFactory::Ref
+ConnectionImpl::buffer(uint32_t voice) const
+{
+	assert(!must_mix());
+	assert(!must_queue());
+	assert(_src_port->poly() == 1 || _src_port->poly() > voice);
+	if (_src_port->poly() == 1) {
+		return _src_port->buffer(0);
+	} else {
+		return _src_port->buffer(voice);
+	}
+}
+
+bool
+ConnectionImpl::must_mix() const
+{
+	return _src_port->poly() > _dst_port->poly();
+}
+
+bool
+ConnectionImpl::must_queue() const
+{
+	return _src_port->context() != _dst_port->context();
+}
+
 bool
 ConnectionImpl::can_connect(const OutputPort* src, const InputPort* dst)
 {
-- 
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