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sdrangel/wdsp/bldr.hpp
2024-08-05 20:05:59 +02:00

89 lines
2.6 KiB
C++

/* lmath.h
This file is part of a program that implements a Software-Defined Radio.
Copyright (C) 2015, 2023 Warren Pratt, NR0V
Copyright (C) 2024 Edouard Griffiths, F4EXB Adapted to SDRangel
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
The author can be reached by email at
warren@wpratt.com
*/
#ifndef wdsp_bldr_h
#define wdsp_bldr_h
#include <vector>
#include "export.h"
namespace WDSP {
class WDSP_API BLDR
{
public:
double* catxy;
std::vector<double> sx;
std::vector<double> sy;
std::vector<double> h;
std::vector<int> p;
std::vector<int> np;
std::vector<double> taa;
std::vector<double> tab;
std::vector<double> tag;
std::vector<double> tad;
std::vector<double> tbb;
std::vector<double> tbg;
std::vector<double> tbd;
std::vector<double> tgg;
std::vector<double> tgd;
std::vector<double> tdd;
std::vector<double> A;
std::vector<double> B;
std::vector<double> C;
std::vector<double> D;
std::vector<double> E;
std::vector<double> F;
std::vector<double> G;
std::vector<double> MAT;
std::vector<double> RHS;
std::vector<double> SLN;
std::vector<double> z;
std::vector<double> zp;
std::vector<double> wrk;
std::vector<int> ipiv;
BLDR(int points, int ints);
BLDR(const BLDR&) = delete;
BLDR& operator=(const BLDR& other) = delete;
~BLDR();
void flush(int points);
void execute(int points, const double* x, const double* y, int ints, const double* t, int* info, double* c, double ptol);
private:
static int fcompare(const void* a, const void* b);
static void decomp(int n, std::vector<double>& a, std::vector<int>& piv, int* info, std::vector<double>& wrk);
static void dsolve(int n, std::vector<double>& a, std::vector<int>& piv, std::vector<double>& b, std::vector<double>& x);
static void cull(int* n, int ints, std::vector<double>& x, const double* t, double ptol);
};
} // namespace WDSP
#endif