From f4f74f3316b474096f164aa33c9d2e8965a545c3 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Wed, 15 Dec 2010 20:10:41 +0000
Subject: Improve performance for setups with many apps or ports. (Eliminate
 all linear searches for items, except one case for Jack ports which is
 unavoidable due to the Jack API, but is memoized, so each port will only be
 searched for once between refreshes).

git-svn-id: http://svn.drobilla.net/lad/trunk/patchage@2712 a436a847-0d15-0410-975c-d299462d15a1
---
 src/PortID.hpp | 38 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

(limited to 'src/PortID.hpp')

diff --git a/src/PortID.hpp b/src/PortID.hpp
index b3c2eb6..b1f8444 100644
--- a/src/PortID.hpp
+++ b/src/PortID.hpp
@@ -34,6 +34,9 @@
 
 struct PortID {
 	PortID() : type(NULL_PORT_ID) { memset(&id, 0, sizeof(id)); }
+	PortID(const PortID& copy) : type(copy.type) {
+		memcpy(&id, &copy.id, sizeof(id));
+	}
 
 	enum { NULL_PORT_ID, JACK_ID, ALSA_ADDR } type;
 
@@ -73,7 +76,40 @@ operator<<(std::ostream& os, const PortID& id)
 		break;
 	case PortID::ALSA_ADDR:
 #ifdef HAVE_ALSA
-		return os << "alsa:" << (int)id.id.alsa_addr.client << ":" << (int)id.id.alsa_addr.port;
+		return os << "alsa:" << (int)id.id.alsa_addr.client << ":" << (int)id.id.alsa_addr.port
+		          << ":" << (id.id.is_input ? "in" : "out");
+#endif
+		break;
+	}
+	assert(false);
+}
+
+static inline bool
+operator<(const PortID& a, const PortID& b)
+{
+	if (a.type != b.type)
+		return a.type < b.type;
+
+	switch (a.type) {
+	case PortID::NULL_PORT_ID:
+		return true;
+	case PortID::JACK_ID:
+#ifdef USE_LIBJACK
+		return a.id.jack_id < b.id.jack_id;
+#endif
+		break;
+	case PortID::ALSA_ADDR:
+#ifdef HAVE_ALSA
+		if ((a.id.alsa_addr.client < b.id.alsa_addr.client)
+		    || ((a.id.alsa_addr.client == b.id.alsa_addr.client)
+		        && a.id.alsa_addr.port < b.id.alsa_addr.port)) {
+			return true;
+		} else if (a.id.alsa_addr.client == b.id.alsa_addr.client
+		           && a.id.alsa_addr.port == b.id.alsa_addr.port) {
+			return (a.id.is_input < b.id.is_input);
+		} else {
+			return false;
+		}
 #endif
 		break;
 	}
-- 
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