Support LV2 atom sequence ports alongside old event ports.

git-svn-id: svn://localhost/ardour2/branches/3.0@11517 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 10 insertions, 6 deletions

diff --git a/libs/ardour/ardour/buffer_set.h b/libs/ardour/ardour/buffer_set.h
index 4db1c34557..5049eda70a 100644
--- a/libs/ardour/ardour/buffer_set.h
+++ b/libs/ardour/ardour/buffer_set.h
@@ -37,15 +37,16 @@ struct _VstMidiEvent;
 typedef struct _VstMidiEvent VstMidiEvent;
 #endif
 
+#ifdef LV2_SUPPORT
+typedef struct LV2_Evbuf_Impl LV2_Evbuf;
+#endif
+
 namespace ARDOUR {
 
 class Buffer;
 class AudioBuffer;
 class MidiBuffer;
 class PortSet;
-#ifdef LV2_SUPPORT
-class LV2EventBuffer;
-#endif
 
 /** A set of buffers of various types.
  *
@@ -113,8 +114,11 @@ public:
 #ifdef LV2_SUPPORT
 	/** Get a MIDI buffer translated into an LV2 MIDI buffer for use with plugins.
 	 * The index here corresponds directly to MIDI buffer numbers (i.e. the index
-	 * passed to get_midi), translation back and forth will happen as needed */
-	LV2EventBuffer& get_lv2_midi(bool input, size_t i);
+	 * passed to get_midi), translation back and forth will happen as needed.
+	 * If atom_type is 0 the returned buffer will be in the old event API
+	 * format.  Otherwise, atom_type must be the URID for atom:Sequence.
+	 */
+	LV2_Evbuf* get_lv2_midi(bool input, size_t i, uint32_t atom_type);
 
 	/** Flush modified LV2 event output buffers back to Ardour buffers */
 	void flush_lv2_midi(bool input, size_t i);
@@ -175,7 +179,7 @@ private:
 
 #ifdef LV2_SUPPORT
 	/// LV2 MIDI buffers (for conversion to/from MIDI buffers)
-	typedef std::vector< std::pair<bool, LV2EventBuffer*> > LV2Buffers;
+	typedef std::vector< std::pair<bool, LV2_Evbuf*> > LV2Buffers;
 	LV2Buffers _lv2_buffers;
 #endif