Support for the LV2 'data access' and 'instance access' extensions (for in-process GUIs).

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@3684 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 10 insertions, 0 deletions

diff --git a/libs/ardour/ardour/lv2_plugin.h b/libs/ardour/ardour/lv2_plugin.h
index 8d58c7024d..be584b76c3 100644
--- a/libs/ardour/ardour/lv2_plugin.h
+++ b/libs/ardour/ardour/lv2_plugin.h
@@ -60,10 +60,14 @@ class LV2Plugin : public ARDOUR::Plugin
 	int         get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
 	uint32_t    nth_parameter (uint32_t port, bool& ok) const;
 
+	const void* extension_data(const char* uri) { return _instance->lv2_descriptor->extension_data(uri); }
+
 	SLV2Plugin slv2_plugin()         { return _plugin; }
 	SLV2UI     slv2_ui()             { return _ui; }
 	SLV2Port   slv2_port(uint32_t i) { return slv2_plugin_get_port_by_index(_plugin, i); }
 	
+	const LV2_Feature* const* features() { return _features; }
+	
 	std::set<uint32_t> automatable() const;
 
 	void activate () { 
@@ -109,6 +113,7 @@ class LV2Plugin : public ARDOUR::Plugin
   private:
 	void*                    _module;
 	LV2World&                _world;
+	LV2_Feature**            _features;
 	SLV2Plugin               _plugin;
 	SLV2UI                   _ui;
 	SLV2Value                _name;
@@ -122,6 +127,11 @@ class LV2Plugin : public ARDOUR::Plugin
 	bool                     _was_activated;
 	vector<bool>             _port_is_input;
 
+	typedef struct { const void* (*extension_data)(const char* uri); } LV2_DataAccess;
+	LV2_DataAccess _data_access_extension_data;
+	LV2_Feature _data_access_feature;
+	LV2_Feature _instance_access_feature;
+
 	void init (LV2World& world, SLV2Plugin plugin, nframes_t rate);
 	void run (nframes_t nsamples);
 	void latency_compute_run ();