1 /* 2 * Copyright (C) 2011-2012 Carl Hetherington <carl@carlh.net> 3 * Copyright (C) 2011-2017 Paul Davis <paul@linuxaudiosystems.com> 4 * Copyright (C) 2013 John Emmas <john@creativepost.co.uk> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, write to the Free Software Foundation, Inc., 18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 19 */ 20 21 #ifndef __ardour_panner_1in2out_h__ 22 #define __ardour_panner_1in2out_h__ 23 24 #include <cassert> 25 #include <cmath> 26 #include <iostream> 27 #include <string> 28 #include <vector> 29 30 #include "pbd/cartesian.h" 31 #include "pbd/controllable.h" 32 #include "pbd/stateful.h" 33 34 #include "ardour/panner.h" 35 #include "ardour/types.h" 36 37 namespace ARDOUR 38 { 39 40 class Panner1in2out : public Panner 41 { 42 public: 43 Panner1in2out (boost::shared_ptr<Pannable>); 44 ~Panner1in2out (); 45 46 void set_position (double); 47 bool clamp_position (double&); 48 std::pair<double, double> position_range () const; 49 50 double position () const; 51 in()52 ChanCount in () const 53 { 54 return ChanCount (DataType::AUDIO, 1); 55 } 56 out()57 ChanCount out () const 58 { 59 return ChanCount (DataType::AUDIO, 2); 60 } 61 62 static Panner* factory (boost::shared_ptr<Pannable>, boost::shared_ptr<Speakers>); 63 64 std::string value_as_string (boost::shared_ptr<const AutomationControl>) const; 65 66 XMLNode& get_state (); 67 68 void reset (); 69 70 protected: 71 float left; 72 float right; 73 float desired_left; 74 float desired_right; 75 float left_interp; 76 float right_interp; 77 78 void distribute_one (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes, uint32_t which); 79 void distribute_one_automated (AudioBuffer& srcbuf, BufferSet& obufs, 80 samplepos_t start, samplepos_t end, pframes_t nframes, 81 pan_t** buffers, uint32_t which); 82 83 void update (); 84 }; 85 86 } // namespace ARDOUR 87 88 #endif /* __ardour_panner_1in2out_h__ */ 89