2 Copyright (C) 2010 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.
19 #ifndef __libardour_vbap_h__
20 #define __libardour_vbap_h__
25 #include "pbd/cartesian.h"
27 #include "ardour/panner.h"
28 #include "ardour/panner_shell.h"
30 #include "vbap_speakers.h"
37 class VBAPanner : public Panner
40 VBAPanner (boost::shared_ptr<Pannable>, boost::shared_ptr<Speakers>);
43 void configure_io (ChanCount in, ChanCount /* ignored - we use Speakers */);
45 ChanCount out() const;
47 void set_position (double);
48 void set_width (double);
49 void set_elevation (double);
51 std::set<Evoral::Parameter> what_can_be_automated() const;
53 static Panner* factory (boost::shared_ptr<Pannable>, boost::shared_ptr<Speakers>);
55 void distribute (BufferSet& ibufs, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes);
57 void set_azimuth_elevation (double azimuth, double elevation);
59 std::string describe_parameter (Evoral::Parameter);
60 std::string value_as_string (boost::shared_ptr<const AutomationControl>) const;
62 XMLNode& get_state ();
64 PBD::AngularVector signal_position (uint32_t n) const;
65 boost::shared_ptr<Speakers> get_speakers() const;
71 PBD::AngularVector direction;
72 std::vector<double> gains; /* most recently used gain for all speakers */
74 int outputs[3]; /* most recent set of outputs used (2 or 3, depending on dimension) */
75 int desired_outputs[3]; /* outputs to use the next time we distribute */
76 double desired_gains[3]; /* target gains for desired_outputs */
78 Signal (Session&, VBAPanner&, uint32_t which, uint32_t n_speakers);
79 void resize_gains (uint32_t n_speakers);
82 std::vector<Signal*> _signals;
83 boost::shared_ptr<VBAPSpeakers> _speakers;
85 void compute_gains (double g[3], int ls[3], int azi, int ele);
87 void clear_signals ();
89 void distribute_one (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes, uint32_t which);
90 void distribute_one_automated (AudioBuffer& src, BufferSet& obufs,
91 samplepos_t start, samplepos_t end, pframes_t nframes,
92 pan_t** buffers, uint32_t which);
97 #endif /* __libardour_vbap_h__ */