96 lines
3.0 KiB
C++
96 lines
3.0 KiB
C++
/*
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* Copyright (C) 2011-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2011 Carl Hetherington <carl@carlh.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __libardour_vbap_h__
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#define __libardour_vbap_h__
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#include <map>
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#include <string>
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#include "pbd/cartesian.h"
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#include "ardour/panner.h"
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#include "ardour/panner_shell.h"
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#include "vbap_speakers.h"
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namespace ARDOUR
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{
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class Speakers;
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class Pannable;
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class VBAPanner : public Panner
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{
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public:
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VBAPanner (boost::shared_ptr<Pannable>, boost::shared_ptr<Speakers>);
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~VBAPanner ();
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void configure_io (ChanCount in, ChanCount /* ignored - we use Speakers */);
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ChanCount in () const;
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ChanCount out () const;
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void set_position (double);
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void set_width (double);
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void set_elevation (double);
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static Panner* factory (boost::shared_ptr<Pannable>, boost::shared_ptr<Speakers>);
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void distribute (BufferSet& ibufs, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes);
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void set_azimuth_elevation (double azimuth, double elevation);
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std::string value_as_string (boost::shared_ptr<const AutomationControl>) const;
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XMLNode& get_state ();
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PBD::AngularVector signal_position (uint32_t n) const;
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boost::shared_ptr<Speakers> get_speakers () const;
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void reset ();
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private:
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struct Signal {
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PBD::AngularVector direction;
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std::vector<double> gains; /* most recently used gain for all speakers */
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int outputs[3]; /* most recent set of outputs used (2 or 3, depending on dimension) */
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int desired_outputs[3]; /* outputs to use the next time we distribute */
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double desired_gains[3]; /* target gains for desired_outputs */
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Signal (VBAPanner&, uint32_t which, uint32_t n_speakers);
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void resize_gains (uint32_t n_speakers);
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};
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std::vector<Signal*> _signals;
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boost::shared_ptr<VBAPSpeakers> _speakers;
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void compute_gains (double g[3], int ls[3], int azi, int ele);
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void update ();
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void clear_signals ();
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void distribute_one (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes, uint32_t which);
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void distribute_one_automated (AudioBuffer& src, BufferSet& obufs,
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samplepos_t start, samplepos_t end, pframes_t nframes,
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pan_t** buffers, uint32_t which);
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};
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} // namespace ARDOUR
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#endif /* __libardour_vbap_h__ */
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