108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
/*
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Copyright (C) 2010 Paul Davis
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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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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __libardour_vbap_speakers_h__
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#define __libardour_vbap_speakers_h__
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#include <string>
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#include <vector>
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#include <boost/utility.hpp>
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#include <pbd/signals.h>
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#include "ardour/panner.h"
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#include "ardour/speakers.h"
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namespace ARDOUR {
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class Speakers;
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class VBAPSpeakers : public boost::noncopyable {
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public:
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VBAPSpeakers (boost::shared_ptr<Speakers>);
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typedef std::vector<double> dvector;
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const dvector matrix (int tuple) const { return _matrices[tuple]; }
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int speaker_for_tuple (int tuple, int which) const { return _speaker_tuples[tuple][which]; }
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int n_tuples () const { return _matrices.size(); }
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int dimension() const { return _dimension; }
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uint32_t n_speakers() const { return _speakers.size(); }
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boost::shared_ptr<Speakers> parent() const { return _parent; }
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~VBAPSpeakers ();
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private:
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static const double MIN_VOL_P_SIDE_LGTH;
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int _dimension;
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boost::shared_ptr<Speakers> _parent;
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std::vector<Speaker> _speakers;
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PBD::ScopedConnection speaker_connection;
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struct azimuth_sorter {
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bool operator() (const Speaker& s1, const Speaker& s2) {
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return s1.angles().azi < s2.angles().azi;
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}
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};
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struct twoDmatrix : public dvector {
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twoDmatrix() : dvector (4, 0.0) {}
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};
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struct threeDmatrix : public dvector {
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threeDmatrix() : dvector (9, 0.0) {}
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};
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struct tmatrix : public dvector {
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tmatrix() : dvector (3, 0.0) {}
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};
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std::vector<dvector> _matrices; /* holds matrices for a given speaker combinations */
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std::vector<tmatrix> _speaker_tuples; /* holds speakers IDs for a given combination */
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/* A struct for all loudspeakers */
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struct ls_triplet_chain {
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int ls_nos[3];
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float inv_mx[9];
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struct ls_triplet_chain *next;
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};
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static double vec_angle(PBD::CartesianVector v1, PBD::CartesianVector v2);
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static double vec_length(PBD::CartesianVector v1);
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static double vec_prod(PBD::CartesianVector v1, PBD::CartesianVector v2);
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static double vol_p_side_lgth(int i, int j,int k, const std::vector<Speaker>&);
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static void cross_prod(PBD::CartesianVector v1,PBD::CartesianVector v2, PBD::CartesianVector *res);
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void update ();
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int any_ls_inside_triplet (int a, int b, int c);
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void add_ldsp_triplet (int i, int j, int k, struct ls_triplet_chain **ls_triplets);
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int lines_intersect (int i,int j,int k,int l);
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void calculate_3x3_matrixes (struct ls_triplet_chain *ls_triplets);
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void choose_speaker_triplets (struct ls_triplet_chain **ls_triplets);
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void choose_speaker_pairs ();
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void sort_2D_lss (int* sorted_lss);
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int calc_2D_inv_tmatrix (double azi1,double azi2, double* inv_mat);
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};
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} /* namespace */
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#endif /* __libardour_vbap_speakers_h__ */
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