2 Copyright (C) 2009 Paul Davis
3 Author: David Robillard
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__
27 #include "pbd/stateful.h"
28 #include "ardour/ardour.h"
29 #include "ardour/io_processor.h"
37 class LIBARDOUR_API Return : public IOProcessor
40 Return (Session&, bool internal = false);
43 uint32_t bit_slot() const { return _bitslot; }
45 void run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool);
47 boost::shared_ptr<Amp> amp() const { return _amp; }
48 boost::shared_ptr<PeakMeter> meter() const { return _meter; }
49 boost::shared_ptr<GainControl> gain_control() const { return _gain_control; }
51 bool metering() const { return _metering; }
52 void set_metering (bool yn) { _metering = yn; }
54 XMLNode& state(bool full);
55 XMLNode& get_state(void);
56 int set_state(const XMLNode&, int version);
58 uint32_t pans_required() const { return _configured_input.n_audio(); }
60 bool can_support_io_configuration (const ChanCount& in, ChanCount& out);
61 bool configure_io (ChanCount in, ChanCount out);
63 static uint32_t how_many_returns();
64 static std::string name_and_id_new_return (Session&, uint32_t&);
68 boost::shared_ptr<GainControl> _gain_control;
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, pframes_t nframes, ChanCount offset = ChanCount::ZERO);
83 #endif /* __ardour_return_h__ */