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git-svn-id: svn://db.shs.com.ru/pip@400 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

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Пелипенко Иван
2017-04-18 20:49:45 +00:00
parent b1b23bf89c
commit 95c1f34b45
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src_main/math/pifft.h Normal file
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/*! \file pifft.h
* \brief Class for FFT, IFFT and Hilbert transformations
*/
/*
PIP - Platform Independent Primitives
Class for FFT, IFFT and Hilbert transformations
Copyright (C) 2016 Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef PIFFT_H
#define PIFFT_H
#include "pimathcomplex.h"
class PIP_EXPORT PIFFT_double
{
public:
PIFFT_double();
PIVector<complexd> * calcFFT(const PIVector<complexd> &val);
PIVector<complexd> * calcFFT(const PIVector<double> &val);
PIVector<complexd> * calcFFTinverse(const PIVector<complexd> &val);
PIVector<complexd> * calcHilbert(const PIVector<double> &val);
PIVector<double> getAmplitude() const;
PIVector<double> getReal() const;
PIVector<double> getImag() const;
private:
PIVector<complexd> result;
typedef ptrdiff_t ae_int_t;
struct ftplan {
PIVector<int> plan;
PIVector<double> precomputed;
PIVector<double> tmpbuf;
PIVector<double> stackbuf;
};
ftplan curplan;
void fftc1d(const PIVector<complexd> &a, uint n);
void fftc1r(const PIVector<double> &a, uint n);
void fftc1dinv(const PIVector<complexd> &a, uint n);
void createPlan(uint n);
void ftbasegeneratecomplexfftplan(uint n, ftplan *plan);
void ftbase_ftbasegenerateplanrec(int n, int tasktype, ftplan *plan, int *plansize, int *precomputedsize, int *planarraysize, int *tmpmemsize, int *stackmemsize, ae_int_t stackptr, int debugi=0);
void ftbase_ftbaseprecomputeplanrec(ftplan *plan, int entryoffset, ae_int_t stackptr);
void ftbasefactorize(int n, int *n1, int *n2);
void ftbase_ftbasefindsmoothrec(int n, int seed, int leastfactor, int *best);
int ftbasefindsmooth(int n);
void ftbaseexecuteplan(PIVector<double> *a, int aoffset, int n, ftplan *plan);
void ftbaseexecuteplanrec(PIVector<double> *a, int aoffset, ftplan *plan, int entryoffset, ae_int_t stackptr);
void ftbase_internalcomplexlintranspose(PIVector<double> *a, int m, int n, int astart, PIVector<double> *buf);
void ftbase_ffticltrec(PIVector<double> *a, int astart, int astride, PIVector<double> *b, int bstart, int bstride, int m, int n);
void ftbase_internalreallintranspose(PIVector<double> *a, int m, int n, int astart, PIVector<double> *buf);
void ftbase_fftirltrec(PIVector<double> *a, int astart, int astride, PIVector<double> *b, int bstart, int bstride, int m, int n);
void ftbase_ffttwcalc(PIVector<double> *a, int aoffset, int n1, int n2);
};
class PIP_EXPORT PIFFT_float
{
public:
PIFFT_float();
PIVector<complexf> * calcFFT(const PIVector<complexf> &val);
PIVector<complexf> * calcFFT(const PIVector<float> &val);
PIVector<complexf> * calcFFTinverse(const PIVector<complexf> &val);
PIVector<complexf> * calcHilbert(const PIVector<float> &val);
PIVector<float> getAmplitude() const;
PIVector<float> getReal() const;
PIVector<float> getImag() const;
private:
PIVector<complexf> result;
typedef ptrdiff_t ae_int_t;
struct ftplan {
PIVector<int> plan;
PIVector<float> precomputed;
PIVector<float> tmpbuf;
PIVector<float> stackbuf;
};
ftplan curplan;
void fftc1d(const PIVector<complexf> &a, uint n);
void fftc1r(const PIVector<float> &a, uint n);
void fftc1dinv(const PIVector<complexf> &a, uint n);
void createPlan(uint n);
void ftbasegeneratecomplexfftplan(uint n, ftplan *plan);
void ftbase_ftbasegenerateplanrec(int n, int tasktype, ftplan *plan, int *plansize, int *precomputedsize, int *planarraysize, int *tmpmemsize, int *stackmemsize, ae_int_t stackptr, int debugi=0);
void ftbase_ftbaseprecomputeplanrec(ftplan *plan, int entryoffset, ae_int_t stackptr);
void ftbasefactorize(int n, int *n1, int *n2);
void ftbase_ftbasefindsmoothrec(int n, int seed, int leastfactor, int *best);
int ftbasefindsmooth(int n);
void ftbaseexecuteplan(PIVector<float> *a, int aoffset, int n, ftplan *plan);
void ftbaseexecuteplanrec(PIVector<float> *a, int aoffset, ftplan *plan, int entryoffset, ae_int_t stackptr);
void ftbase_internalcomplexlintranspose(PIVector<float> *a, int m, int n, int astart, PIVector<float> *buf);
void ftbase_ffticltrec(PIVector<float> *a, int astart, int astride, PIVector<float> *b, int bstart, int bstride, int m, int n);
void ftbase_internalreallintranspose(PIVector<float> *a, int m, int n, int astart, PIVector<float> *buf);
void ftbase_fftirltrec(PIVector<float> *a, int astart, int astride, PIVector<float> *b, int bstart, int bstride, int m, int n);
void ftbase_ffttwcalc(PIVector<float> *a, int aoffset, int n1, int n2);
};
typedef PIFFT_double PIFFT;
typedef PIFFT_double PIFFTd;
typedef PIFFT_float PIFFTf;
#define _PIFFTW_H(type) class _PIFFTW_P_##type##_ { \
public: \
_PIFFTW_P_##type##_(); \
~_PIFFTW_P_##type##_(); \
const PIVector<complex<type> > & calcFFT(const PIVector<complex<type> > & in); \
const PIVector<complex<type> > & calcFFTR(const PIVector<type> & in); \
const PIVector<complex<type> > & calcFFTI(const PIVector<complex<type> > & in); \
void preparePlan(int size, int op); \
void * impl; \
};
_PIFFTW_H(float)
_PIFFTW_H(double)
_PIFFTW_H(ldouble)
template <typename T>
class PIP_EXPORT PIFFTW
{
public:
explicit PIFFTW() {p = 0; newP(p);}
~PIFFTW() {deleteP(p);}
inline const PIVector<complex<T> > & calcFFT(const PIVector<complex<T> > & in) {return PIVector<complex<T> >().resize(in.size());}
inline const PIVector<complex<T> > & calcFFT(const PIVector<T> & in) {return PIVector<complex<T> >().resize(in.size());}
inline const PIVector<complex<T> > & calcFFTinverse(const PIVector<complex<T> > & in) {return PIVector<complex<T> >().resize(in.size());}
enum FFT_Operation {foReal, foComplex, foInverse};
inline void preparePlan(int size, FFT_Operation op) {}
private:
void operator =(const PIFFTW & );
PIFFTW(const PIFFTW &);
inline void newP(void *& _p) {}
inline void deleteP(void *& _p) {}
void * p;
};
template<> inline const PIVector<complex<float> > & PIFFTW<float>::calcFFT(const PIVector<complex<float> > & in) {return ((_PIFFTW_P_float_*)p)->calcFFT(in);}
template<> inline const PIVector<complex<float> > & PIFFTW<float>::calcFFT(const PIVector<float> & in) {return ((_PIFFTW_P_float_*)p)->calcFFTR(in);}
template<> inline const PIVector<complex<float> > & PIFFTW<float>::calcFFTinverse(const PIVector<complex<float> > & in) {return ((_PIFFTW_P_float_*)p)->calcFFTI(in);}
template<> inline void PIFFTW<float>::preparePlan(int size, FFT_Operation op) {((_PIFFTW_P_float_*)p)->preparePlan(size, op);}
template<> inline void PIFFTW<float>::newP(void *& _p) {_p = new _PIFFTW_P_float_();}
template<> inline void PIFFTW<float>::deleteP(void *& _p) {if (_p) delete (_PIFFTW_P_float_*)_p; _p = 0;}
typedef PIFFTW<float> PIFFTWf;
template<> inline const PIVector<complex<double> > & PIFFTW<double>::calcFFT(const PIVector<complex<double> > & in) {return ((_PIFFTW_P_double_*)p)->calcFFT(in);}
template<> inline const PIVector<complex<double> > & PIFFTW<double>::calcFFT(const PIVector<double> & in) {return ((_PIFFTW_P_double_*)p)->calcFFTR(in);}
template<> inline const PIVector<complex<double> > & PIFFTW<double>::calcFFTinverse(const PIVector<complex<double> > & in) {return ((_PIFFTW_P_double_*)p)->calcFFTI(in);}
template<> inline void PIFFTW<double>::preparePlan(int size, FFT_Operation op) {((_PIFFTW_P_double_*)p)->preparePlan(size, op);}
template<> inline void PIFFTW<double>::newP(void *& _p) {_p = new _PIFFTW_P_double_();}
template<> inline void PIFFTW<double>::deleteP(void *& _p) {if (_p) delete (_PIFFTW_P_double_*)_p; _p = 0;}
typedef PIFFTW<double> PIFFTWd;
template<> inline const PIVector<complex<ldouble> > & PIFFTW<ldouble>::calcFFT(const PIVector<complex<ldouble> > & in) {return ((_PIFFTW_P_ldouble_*)p)->calcFFT(in);}
template<> inline const PIVector<complex<ldouble> > & PIFFTW<ldouble>::calcFFT(const PIVector<ldouble> & in) {return ((_PIFFTW_P_ldouble_*)p)->calcFFTR(in);}
template<> inline const PIVector<complex<ldouble> > & PIFFTW<ldouble>::calcFFTinverse(const PIVector<complex<ldouble> > & in) {return ((_PIFFTW_P_ldouble_*)p)->calcFFTI(in);}
template<> inline void PIFFTW<ldouble>::preparePlan(int size, FFT_Operation op) {((_PIFFTW_P_ldouble_*)p)->preparePlan(size, op);}
template<> inline void PIFFTW<ldouble>::newP(void *& _p) {_p = new _PIFFTW_P_ldouble_();}
template<> inline void PIFFTW<ldouble>::deleteP(void *& _p) {if (_p) delete (_PIFFTW_P_ldouble_*)_p; _p = 0;}
typedef PIFFTW<ldouble> PIFFTWld;
#endif // PIFFT_H