source: Sophya/trunk/SophyaLib/NTools/fftpserver.h@ 3587

Last change on this file since 3587 was 3002, checked in by ansari, 19 years ago

Suppression const des arguments FFTForward/Backward + adaptation de Toeplitz, cmv+Reza 03/07/2006
File size: 2.6 KB
Line 
1// FFT (Fast Fourier Transform) Server based on FFTPack
2// R. Ansari 1999-2000
3// DAPNIA/SPP (Saclay) / CEA LAL - IN2P3/CNRS (Orsay)
4
5#ifndef FFTPServer_H_SEEN
6#define FFTPServer_H_SEEN
7
8#include "fftservintf.h"
9
10// implementation de FFTServerInterface en utilisant FFTPack
11
12namespace SOPHYA {
13
14//! An FFT server based on fftpack.
15class FFTPackServer : public FFTServerInterface {
16 public:
17 FFTPackServer(bool preserve_input=true);
18 virtual ~FFTPackServer();
19
20 // Implementation de l'interface FFTServerInterface
21
22 virtual FFTServerInterface * Clone();
23
24 // Transforme unidimensionnel sur des double
25 virtual void FFTForward(TArray< complex<r_8> > & in, TArray< complex<r_8> > & out);
26 virtual void FFTBackward(TArray< complex<r_8> > & in, TArray< complex<r_8> > & out);
27 virtual void FFTForward(TArray< r_8 > & in, TArray< complex<r_8> > & out);
28 virtual void FFTBackward(TArray< complex<r_8> > & in, TArray< r_8 > & out,
29 bool usoutsz=false);
30
31 // Transforme unidimensionnel sur des float
32 virtual void FFTForward(TArray< complex<r_4> > & in, TArray< complex<r_4> > & out);
33 virtual void FFTBackward(TArray< complex<r_4> > & in, TArray< complex<r_4> > & out);
34 virtual void FFTForward(TArray< r_4 > & in, TArray< complex<r_4> > & out);
35 virtual void FFTBackward(TArray< complex<r_4> > & in, TArray< r_4 > & out,
36 bool usoutsz=false);
37
38// Methodes statiques pour reordonner les donnees
39 static void ReShapetoReal(TArray< complex<r_8> > const & in, TArray< r_8 > & out, bool usz);
40 static void ReShapetoCompl(TArray< r_8 > const & in, TArray< complex<r_8> > & out);
41 static void ReShapetoReal(TArray< complex<r_4> > const & in, TArray< r_4 > & out, bool usz);
42 static void ReShapetoCompl(TArray< r_4 > const & in, TArray< complex<r_4> > & out);
43
44 // Methodes propres a cette classe
45 virtual void fftf(int_4 l, float* inout);
46 virtual void fftb(int_4 l, float* inout);
47 virtual void fftf(int_4 l, double* inout);
48 virtual void fftb(int_4 l, double* inout);
49 virtual void fftf(int_4 l, complex<float>* inout);
50 virtual void fftb(int_4 l, complex<float>* inout);
51 virtual void fftf(int_4 l, complex<double>* inout);
52 virtual void fftb(int_4 l, complex<double>* inout);
53
54 protected:
55 virtual void checkint_rfft(int_4 l);
56 virtual void checkint_dfft(int_4 l);
57 virtual void checkint_cfft(int_4 l);
58 virtual void checkint_cdfft(int_4 l);
59
60 int sz_rfft;
61 r_4* ws_rfft;
62
63 int sz_cfft;
64 r_4* ws_cfft;
65
66 int sz_dfft;
67 r_8* ws_dfft;
68
69 int sz_cdfft;
70 r_8* ws_cdfft;
71
72 FFTArrayChecker<r_4> ckR4;
73 FFTArrayChecker<r_8> ckR8;
74 bool _preserve_input; // if true, input arrays not overwritten
75
76};
77
78} // Fin du namespace
79
80
81#endif
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