move LatencyChanged detection from Plugin to Processor (plugin-insert)

* support all Plugin APIs (not implementation specific)
* also check for latency changes when plugins are hard en/disabled

2 files changed, 2 insertions, 18 deletions

diff --git a/libs/ardour/ardour/plugin.h b/libs/ardour/ardour/plugin.h
index bc32d7c3e6..df4b512ef7 100644
--- a/libs/ardour/ardour/plugin.h
+++ b/libs/ardour/ardour/plugin.h
@@ -225,23 +225,6 @@ class LIBARDOUR_API Plugin : public PBD::StatefulDestructible, public Latent
 		return 0;
 	}
 
-	/** Emitted when a Latency Changes
-	 *
-	 * (this cannot be part of ARDOUR::Latent because
-	 * signals cannot be copy-constructed).
-	 */
-	PBD::Signal2<void,framecnt_t, framecnt_t> LatencyChanged;
-
-	/* overload Latent::set_user_latency w/signal emission */
-	virtual void set_user_latency (framecnt_t val) {
-		bool changed = val != _user_latency;
-		framecnt_t old = effective_latency ();
-		_user_latency = val;
-		if (changed) {
-			LatencyChanged (old, effective_latency ()); /* EMIT SIGNAL */
-		}
-	}
-
 	/** the max possible latency a plugin will have */
 	virtual framecnt_t max_latency () const { return 0; } // TODO = 0, require implementation
 
diff --git a/libs/ardour/ardour/plugin_insert.h b/libs/ardour/ardour/plugin_insert.h
index 6f7b10cd46..564feb0c63 100644
--- a/libs/ardour/ardour/plugin_insert.h
+++ b/libs/ardour/ardour/plugin_insert.h
@@ -310,6 +310,7 @@ class LIBARDOUR_API PluginInsert : public Processor
 	boost::shared_ptr<SideChain> _sidechain;
 	uint32_t _sc_playback_latency;
 	uint32_t _sc_capture_latency;
+	uint32_t _plugin_signal_latency;
 
 	boost::weak_ptr<Plugin> _impulseAnalysisPlugin;
 
@@ -368,7 +369,7 @@ class LIBARDOUR_API PluginInsert : public Processor
 	void start_touch (uint32_t param_id);
 	void end_touch (uint32_t param_id);
 
-	void latency_changed (framecnt_t, framecnt_t);
+	void latency_changed ();
 	bool _latency_changed;
 	uint32_t _bypass_port;
 };