From 085ffef1066921e4f9496c2d095f0a2dc1c69b42 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Thu, 7 Jan 2016 21:05:14 +0100
Subject: [PATCH] LADSPA preset discovery

---
 libs/ardour/ardour/ladspa_plugin.h |  1 +
 libs/ardour/ladspa_plugin.cc       | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/libs/ardour/ardour/ladspa_plugin.h b/libs/ardour/ardour/ladspa_plugin.h
index 8c4a96668e..3336a31bf4 100644
--- a/libs/ardour/ardour/ladspa_plugin.h
+++ b/libs/ardour/ardour/ladspa_plugin.h
@@ -151,6 +151,7 @@ class LIBARDOUR_API LadspaPluginInfo : public PluginInfo {
 	~LadspaPluginInfo () { };
 
 	PluginPtr load (Session& session);
+	virtual std::vector<Plugin::PresetRecord> get_presets(Session& session);
 };
 
 typedef boost::shared_ptr<LadspaPluginInfo> LadspaPluginInfoPtr;
diff --git a/libs/ardour/ladspa_plugin.cc b/libs/ardour/ladspa_plugin.cc
index 88f40c1f84..6ec0723248 100644
--- a/libs/ardour/ladspa_plugin.cc
+++ b/libs/ardour/ladspa_plugin.cc
@@ -738,6 +738,29 @@ LadspaPluginInfo::load (Session& session)
 	}
 }
 
+std::vector<Plugin::PresetRecord>
+LadspaPluginInfo::get_presets(Session& session)
+{
+	std::vector<Plugin::PresetRecord> p;
+#if (defined HAVE_LRDF && !defined NO_PLUGIN_STATE)
+	if (!isdigit (unique_id[0])) {
+		return p;
+	}
+	uint32_t id = atol (unique_id);
+	lrdf_uris* set_uris = lrdf_get_setting_uris(id);
+
+	if (set_uris) {
+		for (uint32_t i = 0; i < (uint32_t) set_uris->count; ++i) {
+			if (char* label = lrdf_get_label (set_uris->items[i])) {
+				p.push_back (Plugin::PresetRecord (set_uris->items[i], label));
+			}
+		}
+		lrdf_free_uris(set_uris);
+	}
+#endif
+	return p;
+}
+
 LadspaPluginInfo::LadspaPluginInfo()
 {
        type = ARDOUR::LADSPA;