2 Copyright (C) 2009 Paul Davis
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #ifndef __ardour_return_h__
22 #define __ardour_return_h__
24 #include <sigc++/signal.h>
28 #include "pbd/stateful.h"
29 #include "ardour/ardour.h"
30 #include "ardour/audioengine.h"
31 #include "ardour/io_processor.h"
38 class Return : public IOProcessor
41 Return (Session&, bool internal = false);
42 Return (Session&, const XMLNode&, bool internal = false);
45 uint32_t bit_slot() const { return _bitslot; }
47 void run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes, bool);
49 boost::shared_ptr<Amp> amp() const { return _amp; }
50 boost::shared_ptr<PeakMeter> meter() const { return _meter; }
52 bool metering() const { return _metering; }
53 void set_metering (bool yn) { _metering = yn; }
55 XMLNode& state(bool full);
56 XMLNode& get_state(void);
57 int set_state(const XMLNode&, int version);
59 uint32_t pans_required() const { return _configured_input.n_audio(); }
61 bool can_support_io_configuration (const ChanCount& in, ChanCount& out) const;
62 bool configure_io (ChanCount in, ChanCount out);
64 static uint32_t how_many_returns();
65 static void make_unique (XMLNode &, Session &);
69 boost::shared_ptr<Amp> _amp;
70 boost::shared_ptr<PeakMeter> _meter;
73 /* disallow copy construction */
74 Return (const Return&);
78 void collect_input (BufferSet& bufs, nframes_t nframes, ChanCount offset=ChanCount::ZERO);
79 void just_meter_input (sframes_t start_frame, sframes_t end_frame, nframes_t nframes);
84 #endif /* __ardour_return_h__ */