More signal path cleanup, IO now has one deliver_output function that should do the reasonable thing in all cases.

Including deliver MIDI.

You can now create a MIDI Track, run some MIDI through it, and toggle the mute button on and off, hearing either
silence or a large amount of stuck notes depending on your luck.  Woooo.


git-svn-id: svn://localhost/ardour2/branches/midi@818 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 8 insertions, 0 deletions

diff --git a/libs/ardour/ardour/buffer.h b/libs/ardour/ardour/buffer.h
index accdd9c181..df7f57455b 100644
--- a/libs/ardour/ardour/buffer.h
+++ b/libs/ardour/ardour/buffer.h
@@ -136,6 +136,14 @@ public:
 		}
 	}
 	
+	void apply_gain(gain_t gain, jack_nframes_t len, jack_nframes_t offset=0) {
+		Sample* const buf = _data + offset;
+
+		for (jack_nframes_t n = 0; n < len; ++n) {
+			buf[n] *= gain;
+		}
+	}
+
 	/** Set the data contained by this buffer manually (for setting directly to jack buffer).
 	 * 
 	 * Constructor MUST have been passed capacity=0 or this will die (to prevent mem leaks).