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git-svn-id: svn://db.shs.com.ru/pip@331 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

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Пелипенко Иван
2017-04-04 21:55:29 +00:00
parent d37c981d13
commit b6d35cf05b
5 changed files with 220 additions and 58 deletions
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110
src/math/pifft.h
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@@ -122,74 +122,70 @@ typedef PIFFT_double PIFFTd;
typedef PIFFT_float PIFFTf;
// fftw3 realisation
#ifdef PIP_FFTW
#include <complex.h>
#include "fftw3.h"
#include "pimutex.h"
static PIMutex __pip_fft_plan_mutex;
#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:
const PIVector<complex<T> > & calcFFT(const PIVector<complex<T> > &in) {
result.resize(in.size());
__pip_fft_plan_mutex.lock();
p = fftw_plan_dft_1d(in.size_s(), (fftw_complex *)in.data(), (fftw_complex *)result.data(), FFTW_FORWARD, FFTW_ESTIMATE);
__pip_fft_plan_mutex.unlock();
fftw_execute(p);
fftw_destroy_plan(p);
return result;
}
const PIVector<complex<T> > & calcFFT(const PIVector<T> &in) {
result.resize(in.size());
__pip_fft_plan_mutex.lock();
p = fftw_plan_dft_r2c_1d(in.size_s(), (double *)in.data(), (fftw_complex *)result.data(), FFTW_ESTIMATE);
__pip_fft_plan_mutex.unlock();
fftw_execute(p);
fftw_destroy_plan(p);
return result;
}
const PIVector<complex<T> > & calcFFTinverse(const PIVector<complex<T> > &in) {
result.resize(in.size());
__pip_fft_plan_mutex.lock();
p = fftw_plan_dft_1d(in.size_s(), (fftw_complex *)in.data(), (fftw_complex *)result.data(), FFTW_BACKWARD, FFTW_ESTIMATE);
__pip_fft_plan_mutex.unlock();
fftw_execute(p);
fftw_destroy_plan(p);
return result;
}
explicit PIFFTW() {p = 0; newP(p);}
~PIFFTW() {deleteP(p);}
const PIVector<complex<T> > & calcFFT(const PIVector<complex<T> > & in) {return PIVector<complex<T> >().resize(in.size());}
const PIVector<complex<T> > & calcFFT(const PIVector<T> & in) {return PIVector<complex<T> >().resize(in.size());}
const PIVector<complex<T> > & calcFFTinverse(const PIVector<complex<T> > & in) {return PIVector<complex<T> >().resize(in.size());}
enum FFT_Operation {fo_real, fo_complex, fo_inverse};
enum FFT_Operation {foReal, foComplex, foInverse};
void preparePlan(int size, FFT_Operation op) {
PIVector<complex<T> > in(size), out(size);
PIVector<T> inr(size);
__pip_fft_plan_mutex.lock();
switch (op) {
case fo_real:
p = fftw_plan_dft_r2c_1d(in.size_s(), (double *)inr.data(), (fftw_complex *)out.data(), FFTW_MEASURE);
break;
case fo_complex:
p = fftw_plan_dft_1d(in.size_s(), (fftw_complex *)in.data(), (fftw_complex *)out.data(), FFTW_FORWARD, FFTW_MEASURE);
break;
case fo_inverse:
p = fftw_plan_dft_1d(in.size_s(), (fftw_complex *)in.data(), (fftw_complex *)out.data(), FFTW_BACKWARD, FFTW_MEASURE);
break;
}
__pip_fft_plan_mutex.unlock();
}
void preparePlan(int size, FFT_Operation op) {}
private:
PIVector<complex<T> > result;
fftw_plan p;
void operator =(const PIFFTW & );
inline void newP(void *& _p) {}
inline void deleteP(void *& _p) {}
void * p;
};
typedef PIFFTW<double> PIFFTWd;
#endif // PIP_FFTW
template<> const PIVector<complex<float> > & PIFFTW<float>::calcFFT(const PIVector<complex<float> > & in) {return ((_PIFFTW_P_float_*)p)->calcFFT(in);}
template<> const PIVector<complex<float> > & PIFFTW<float>::calcFFT(const PIVector<float> & in) {return ((_PIFFTW_P_float_*)p)->calcFFTR(in);}
template<> const PIVector<complex<float> > & PIFFTW<float>::calcFFTinverse(const PIVector<complex<float> > & in) {return ((_PIFFTW_P_float_*)p)->calcFFTI(in);}
template<> 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;}
template<> const PIVector<complex<double> > & PIFFTW<double>::calcFFT(const PIVector<complex<double> > & in) {return ((_PIFFTW_P_double_*)p)->calcFFT(in);}
template<> const PIVector<complex<double> > & PIFFTW<double>::calcFFT(const PIVector<double> & in) {return ((_PIFFTW_P_double_*)p)->calcFFTR(in);}
template<> const PIVector<complex<double> > & PIFFTW<double>::calcFFTinverse(const PIVector<complex<double> > & in) {return ((_PIFFTW_P_double_*)p)->calcFFTI(in);}
template<> 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;}
template<> const PIVector<complex<ldouble> > & PIFFTW<ldouble>::calcFFT(const PIVector<complex<ldouble> > & in) {return ((_PIFFTW_P_ldouble_*)p)->calcFFT(in);}
template<> const PIVector<complex<ldouble> > & PIFFTW<ldouble>::calcFFT(const PIVector<ldouble> & in) {return ((_PIFFTW_P_ldouble_*)p)->calcFFTR(in);}
template<> const PIVector<complex<ldouble> > & PIFFTW<ldouble>::calcFFTinverse(const PIVector<complex<ldouble> > & in) {return ((_PIFFTW_P_ldouble_*)p)->calcFFTI(in);}
template<> 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<float> PIFFTWf;
typedef PIFFTW<double> PIFFTWd;
typedef PIFFTW<ldouble> PIFFTWld;
#endif // PIFFT_H