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 void set_position (double);
53 void set_width (double);
55 double position () const;
56 double width () const;
58 static Panner* factory (boost::shared_ptr<Pannable>, Speakers&);
60 XMLNode& state (bool full_state);
61 XMLNode& get_state (void);
62 int set_state (const XMLNode&, int version);
69 float desired_left[2];
70 float desired_right[2];
72 float right_interp[2];
75 bool clamp_stereo_pan (double& direction_as_lr_fract, double& width);
77 void distribute_one (AudioBuffer& srcbuf, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes, uint32_t which);
78 void distribute_one_automated (AudioBuffer& srcbuf, BufferSet& obufs,
79 framepos_t start, framepos_t end, pframes_t nframes,
80 pan_t** buffers, uint32_t which);
85 #endif /* __ardour_panner_2in2out_h__ */