first pass (ok, third really) at internal send+return - audio routing inside ardour without JACK. lots still to do, but at least the obvious works

git-svn-id: svn://localhost/ardour2/branches/3.0@5202 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 7 insertions, 0 deletions

diff --git a/libs/ardour/ardour/audio_buffer.h b/libs/ardour/ardour/audio_buffer.h
index ca1b36e0b1..be1af03061 100644
--- a/libs/ardour/ardour/audio_buffer.h
+++ b/libs/ardour/ardour/audio_buffer.h
@@ -56,6 +56,13 @@ public:
 		}
 		_written = true;
 	}
+
+	/** Acumulate (add) @a len frames @a src starting at @a src_offset into self starting at @ dst_offset*/
+	void merge_from (const Buffer& src, nframes_t len, nframes_t dst_offset = 0, nframes_t src_offset = 0) {
+		const AudioBuffer* ab = dynamic_cast<const AudioBuffer*>(&src);
+		assert (ab);
+		accumulate_from (*ab, len, dst_offset, src_offset);
+	}
 	
 	/** Acumulate (add) @a len frames @a src starting at @a src_offset into self starting at @ dst_offset*/
 	void accumulate_from (const AudioBuffer& src, nframes_t len, nframes_t dst_offset = 0, nframes_t src_offset = 0) {