Trying to get atom:Path to work for model laoding

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.10)
 
-project(NeuralAmpModeler VERSION 0.0.1)
+project(NeuralAmpModelerLv2 VERSION 0.0.1)
 
 set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
 

resources/neural_amp_modeler.ttl.in

@@ -35,18 +35,34 @@
 
 	patch:writable <@NAM_LV2_ID@#model>;
 
+	# Control
+	lv2:port [
+		a atom:AtomPort, lv2:InputPort;
+		atom:bufferType atom:Sequence;
+		atom:supports patch:Message;
+		lv2:designation lv2:control;
+		lv2:index 0;
+		lv2:symbol "control";
+		lv2:name "Control"
+	], [
+		a atom:AtomPort, lv2:OutputPort;
+		atom:bufferType atom:Sequence;
+		atom:supports patch:Message;
+		lv2:designation lv2:control;
+		lv2:index 1;
+		lv2:symbol "notify";
+		lv2:name "Notify"
+	];
+
 	# Audio Ports
 	lv2:port [
 		a lv2:InputPort, lv2:AudioPort;
-		lv2:index 0;
+		lv2:index 2;
 		lv2:symbol "input";
 		lv2:name "Input";
 	], [
 		a lv2:OutputPort, lv2:AudioPort;
-		lv2:index 1;
+		lv2:index 3;
 		lv2:symbol "output";
 		lv2:name "Output";
-	];
-        state:state [
-                <@NAM_LV2_ID@#model> <click.wav> ;
 	].

src/nam_lv2.cpp

@@ -67,7 +67,7 @@ static void cleanup(LV2_Handle instance) {
 static const void* extension_data(const char*) { return nullptr; }
 
 static const LV2_Descriptor descriptor = {
-	NAM::Plugin::URI.data(),
+	"http://github.com/mikeoliphant/neural-amp-modeler-lv2",
 	instantiate,
 	connect_port,
 	activate,

src/nam_plugin.cpp

@@ -4,6 +4,7 @@
 
 // Lv2
 #include <lv2/atom/util.h>
+#include <lv2/patch/patch.h>
 
 #include "nam_plugin.hpp"
 
@@ -15,8 +16,17 @@ namespace NAM {
 
 	void Plugin::map_uris(LV2_URID_Map* map) noexcept {
 		lv2_atom_forge_init(&atom_forge, map);
+
 		uris.atom_Object = map->map(map->handle, LV2_ATOM__Object);
 		uris.atom_Float = map->map(map->handle, LV2_ATOM__Float);
+		uris.atom_Int = map->map(map->handle, LV2_ATOM__Int);
+		uris.atom_Path = map->map(map->handle, LV2_ATOM__Path);
+		uris.atom_URID = map->map(map->handle, LV2_ATOM__URID);
+		uris.patch_Set = map->map(map->handle, LV2_PATCH__Set);
+		uris.patch_property = map->map(map->handle, LV2_PATCH__property);
+		uris.patch_value = map->map(map->handle, LV2_PATCH__value);
+
+		uris.model_Path = map->map(map->handle, MODEL_URI);
 	}
 
 	void Plugin::process(uint32_t n_samples) noexcept {

src/nam_plugin.hpp

@@ -13,13 +13,16 @@
 
 #include "dsp.h"
 
+#define PlUGIN_URI "http://github.com/mikeoliphant/neural-amp-modeler-lv2"
+#define MODEL_URI PlUGIN_URI "#model"
+
 namespace NAM {
 
 	class Plugin {
 	public:
-		static constexpr std::string_view URI = "http://github.com/mikeoliphant/neural-amp-modeler-lv2";
-
 		struct Ports {
+			const LV2_Atom_Sequence* control;
+			LV2_Atom_Sequence* notify;
 			const float* audio_in;
 			float* audio_out;
 		};
@@ -49,6 +52,13 @@ namespace NAM {
 		struct URIs {
 			LV2_URID atom_Object;
 			LV2_URID atom_Float;
+			LV2_URID atom_Int;
+			LV2_URID atom_Path;
+			LV2_URID atom_URID;
+			LV2_URID patch_Set;
+			LV2_URID patch_property;
+			LV2_URID patch_value;
+			LV2_URID model_Path;
 		};
 
 		URIs uris = {};