2 Copyright (C) 2004-2011 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_panner_2in2out_h__
21 #define __ardour_panner_2in2out_h__
29 #include "pbd/stateful.h"
30 #include "pbd/controllable.h"
31 #include "pbd/cartesian.h"
33 #include "ardour/automation_control.h"
34 #include "ardour/automatable.h"
35 #include "ardour/panner.h"
36 #include "ardour/types.h"
40 class Panner2in2out : public Panner
43 Panner2in2out (boost::shared_ptr<Pannable>);
46 ChanCount in() const { return ChanCount (DataType::AUDIO, 2); }
47 ChanCount out() const { return ChanCount (DataType::AUDIO, 2); }
49 bool clamp_position (double&);
50 bool clamp_width (double&);
52 std::pair<double, double> position_range () const;
53 std::pair<double, double> width_range () const;
55 void set_position (double);
56 void set_width (double);
58 double position () const;
59 double width () const;
61 std::set<Evoral::Parameter> what_can_be_automated() const;
63 static Panner* factory (boost::shared_ptr<Pannable>, boost::shared_ptr<Speakers>);
65 std::string describe_parameter (Evoral::Parameter);
66 std::string value_as_string (boost::shared_ptr<const AutomationControl>) const;
68 XMLNode& get_state ();
78 float desired_left[2];
79 float desired_right[2];
81 float right_interp[2];
84 bool clamp_stereo_pan (double& direction_as_lr_fract, double& width);
86 void distribute_one (AudioBuffer& srcbuf, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes, uint32_t which);
87 void distribute_one_automated (AudioBuffer& srcbuf, BufferSet& obufs,
88 framepos_t start, framepos_t end, pframes_t nframes,
89 pan_t** buffers, uint32_t which);
94 #endif /* __ardour_panner_2in2out_h__ */