source: Sophya/trunk/SophyaLib/NTools/fftpserver.h@ 1394

Last change on this file since 1394 was 1394, checked in by ansari, 25 years ago

Changement interface FFTServer - Reza 12/2/2001
File size: 2.5 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();
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> > const & in, TArray< complex<r_8> > & out);
26 virtual void FFTBackward(TArray< complex<r_8> > const & in, TArray< complex<r_8> > & out);
27 virtual void FFTForward(TArray< r_8 > const & in, TArray< complex<r_8> > & out);
28 virtual void FFTBackward(TArray< complex<r_8> > const & in, TArray< r_8 > & out);
29
30 // Transforme unidimensionnel sur des float
31 virtual void FFTForward(TArray< complex<r_4> > const & in, TArray< complex<r_4> > & out);
32 virtual void FFTBackward(TArray< complex<r_4> > const & in, TArray< complex<r_4> > & out);
33 virtual void FFTForward(TArray< r_4 > const & in, TArray< complex<r_4> > & out);
34 virtual void FFTBackward(TArray< complex<r_4> > const & in, TArray< r_4 > & out);
35
36// Methodes statiques pour reordonner les donnees
37 static void ReShapetoReal(TArray< complex<r_8> > const & in, TArray< r_8 > & out);
38 static void ReShapetoCompl(TArray< r_8 > const & in, TArray< complex<r_8> > & out);
39 static void ReShapetoReal(TArray< complex<r_4> > const & in, TArray< r_4 > & out);
40 static void ReShapetoCompl(TArray< r_4 > const & in, TArray< complex<r_4> > & out);
41
42 // Methodes propres a cette classe
43 virtual void fftf(int_4 l, float* inout);
44 virtual void fftb(int_4 l, float* inout);
45 virtual void fftf(int_4 l, double* inout);
46 virtual void fftb(int_4 l, double* inout);
47 virtual void fftf(int_4 l, complex<float>* inout);
48 virtual void fftb(int_4 l, complex<float>* inout);
49 virtual void fftf(int_4 l, complex<double>* inout);
50 virtual void fftb(int_4 l, complex<double>* inout);
51
52 protected:
53 virtual void checkint_rfft(int_4 l);
54 virtual void checkint_dfft(int_4 l);
55 virtual void checkint_cfft(int_4 l);
56 virtual void checkint_cdfft(int_4 l);
57
58 int sz_rfft;
59 r_4* ws_rfft;
60
61 int sz_cfft;
62 r_4* ws_cfft;
63
64 int sz_dfft;
65 r_8* ws_dfft;
66
67 int sz_cdfft;
68 r_8* ws_cdfft;
69
70 FFTArrayChecker<r_4> ckR4;
71 FFTArrayChecker<r_8> ckR8;
72};
73
74} // Fin du namespace
75
76
77#endif
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