X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=include%2Ffilter.h;h=a0c4b4b15c57a7e627a51f4b15aec63026c06bb1;hb=d158a6da6ec776fe98961f73f2ea74cf55de4700;hp=7040a3bcabd2742ca0e94f0cfea2ed18cb6800dd;hpb=a2a9671aff06827cec6d6b80234b90128d337e40;p=ctsim.git diff --git a/include/filter.h b/include/filter.h index 7040a3b..a0c4b4b 100644 --- a/include/filter.h +++ b/include/filter.h @@ -9,7 +9,7 @@ ** This is part of the CTSim program ** Copyright (C) 1983-2000 Kevin Rosenberg ** -** $Id: filter.h,v 1.10 2000/07/06 08:30:30 kevin Exp $ +** $Id: filter.h,v 1.18 2000/08/03 09:57:33 kevin Exp $ ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License (version 2) as @@ -28,62 +28,56 @@ #ifndef FILTER_H #define FILTER_H + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif +#ifdef HAVE_FFTW +#include +#include +#endif + +#include + + class SignalFilter { public: - typedef enum { - FILTER_INVALID, - FILTER_BANDLIMIT, - FILTER_SINC, - FILTER_G_HAMMING, - FILTER_COSINE, - FILTER_TRIANGLE, - FILTER_ABS_BANDLIMIT, // filter times |x| - FILTER_ABS_SINC, - FILTER_ABS_G_HAMMING, - FILTER_ABS_COSINE, - FILTER_SHEPP - } FilterID; - - typedef enum { - FILTER_METHOD_INVALID, - FILTER_METHOD_CONVOLUTION, - FILTER_METHOD_FOURIER, - FILTER_METHOD_FFT, - FILTER_METHOD_FFTW, - } FilterMethodID; - - typedef enum { - DOMAIN_INVALID, - DOMAIN_FREQUENCY, - DOMAIN_SPATIAL - } DomainID; - - static const char FILTER_ABS_BANDLIMIT_STR[]= "abs_bandlimit"; - static const char FILTER_ABS_SINC_STR[]= "abs_sinc"; - static const char FILTER_ABS_COS_STR[]= "abs_cos"; - static const char FILTER_ABS_HAMMING_STR[]= "abs_hamming"; - static const char FILTER_SHEPP_STR[]= "shepp"; - static const char FILTER_BANDLIMIT_STR[]= "bandlimit"; - static const char FILTER_SINC_STR[]= "sinc"; - static const char FILTER_COS_STR[]= "cos"; - static const char FILTER_HAMMING_STR[]= "hamming"; - static const char FILTER_TRIANGLE_STR[]= "triangle"; - - static const char FILTER_METHOD_CONVOLUTION_STR[]= "convolution"; - static const char FILTER_METHOD_FOURIER_STR[]= "fourier"; - static const char FILTER_METHOD_FFT_STR[]= "fft"; - static const char FILTER_METHOD_FFTW_STR[]= "fftw"; - - static const char DOMAIN_FREQUENCY_STR[]="frequency"; - static const char DOMAIN_SPATIAL_STR[]="spatial"; + static const int FILTER_INVALID; + static const int FILTER_ABS_BANDLIMIT; // filter times |x| + static const int FILTER_ABS_SINC; + static const int FILTER_ABS_G_HAMMING; + static const int FILTER_ABS_COSINE; + static const int FILTER_SHEPP; + static const int FILTER_BANDLIMIT; + static const int FILTER_SINC; + static const int FILTER_G_HAMMING; + static const int FILTER_COSINE; + static const int FILTER_TRIANGLE; + + static const int FILTER_METHOD_INVALID; + static const int FILTER_METHOD_CONVOLUTION; + static const int FILTER_METHOD_FOURIER; + static const int FILTER_METHOD_FOURIER_TABLE; + static const int FILTER_METHOD_FFT; +#if HAVE_FFTW + static const int FILTER_METHOD_FFTW; + static const int FILTER_METHOD_RFFTW; +#endif + static const int DOMAIN_INVALID; + static const int DOMAIN_FREQUENCY; + static const int DOMAIN_SPATIAL; + + static const int FREQUENCY_FILTER_INVALID; + static const int FREQUENCY_FILTER_DIRECT_FREQUENCY; + static const int FREQUENCY_FILTER_INVERSE_SPATIAL; - SignalFilter (const char* filterName, const char* filterMethodName,double bw, double signalIncrement, int n, double param, const char* domainName, const int zeropad = 0, const int numIntegral = 0); + SignalFilter (const char* filterName, const char* filterMethodName,double bw, double signalIncrement, int n, double param, const char* domainName, const char* frequencyFilterName, const int zeropad = 0, const int preinterpolationFactor = 1); - SignalFilter (const FilterID filt_type, FilterMethodID filterMethodID, double bw, double signalIncrement, int n, double param, const DomainID domain, const int zeropad = 0, const int numIntegral = 0); + SignalFilter (const int filt_type, int filterMethodID, double bw, double signalIncrement, int n, double param, const int domain, int filterFilterID, const int zeropad = 0, const int preinterpolationFactor = 1); - SignalFilter (const char* filterName, const char* domainName, double bw, double param, int numIntegral = 0); + SignalFilter (const char* filterName, const char* domainName, double bw, double param); ~SignalFilter (void); @@ -101,12 +95,12 @@ class SignalFilter { void filterSignal (const float input[], double output[]) const; static void finiteFourierTransform (const double input[], complex output[], const int n, const int direction); - static void finiteFourierTransform (const complex input[], complex output[], const int n, const int direction); + static void finiteFourierTransform (const complex input[], double output[], const int n, const int direction); void finiteFourierTransform (const double input[], complex output[], const int direction) const; - void finiteFourierTransform (const complex input[], complex output[], const int direction) const; + void finiteFourierTransform (const complex input[], double output[], const int direction) const; void setTraceLevel (int traceLevel) {m_traceLevel = traceLevel; } @@ -115,24 +109,49 @@ class SignalFilter { const string& nameFilter(void) const { return m_nameFilter;} const string& nameDomain(void) const { return m_nameDomain;} - const FilterID idFilter(void) const { return m_idFilter;} - const DomainID idDomain(void) const { return m_idDomain;} + const int idFilter(void) const { return m_idFilter;} + const int idDomain(void) const { return m_idDomain;} + const int idFrequencyFilter() const { return m_idFrequencyFilter;} const double getFilterMin(void) const {return m_filterMin;} const double getFilterMax(void) const {return m_filterMax;} const double getFilterIncrement(void) const {return m_filterInc;} double response (double x); - static double spatialResponse (FilterID fType, double bw, double x, double param, int nIntegral = 0); + static double spatialResponse (int fType, double bw, double x, double param); + + static double frequencyResponse (int fType, double bw, double u, double param); - static double frequencyResponse (FilterID fType, double bw, double u, double param); + static double spatialResponseAnalytic (int fType, double bw, double x, double param); - static double spatialResponseCalc (FilterID fType, double bw, double x, double param, int n); + static double spatialResponseCalc (int fType, double bw, double x, double param, int nIntegral); - static double spatialResponseAnalytic (FilterID fType, double bw, double x, double param); + static void setNumIntegral(int nIntegral) {N_INTEGRAL = nIntegral;} - static void dotProduct (const double v1[], const complex v2[], complex output[], const int n); + static const int getFilterCount() {return s_iFilterCount;} + static const char** getFilterNameArray() {return s_aszFilterName;} + static const char** getFilterTitleArray() {return s_aszFilterTitle;} + static int convertFilterNameToID (const char* const filterName); + static const char* convertFilterIDToName (const int idFilter); + static const char* convertFilterIDToTitle (const int idFilter); + static const int getFilterMethodCount() {return s_iFilterMethodCount;} + static const char** getFilterMethodNameArray() {return s_aszFilterMethodName;} + static const char** getFilterMethodTitleArray() {return s_aszFilterMethodTitle;} + static int convertFilterMethodNameToID (const char* const filterMethodName); + static const char* convertFilterMethodIDToName (const int idFilterMethod); + static const char* convertFilterMethodIDToTitle (const int idFilterMethod); + + static const int getDomainCount() {return s_iDomainCount;} + static const char** getDomainNameArray() {return s_aszDomainName;} + static const char** getDomainTitleArray() {return s_aszDomainTitle;} + static int convertDomainNameToID (const char* const domainName); + static const char* convertDomainIDToName (const int idDomain); + static const char* convertDomainIDToTitle (const int idDomain); + static int convertFrequencyFilterNameToID (const char* const ffName); + static const char* convertFrequencyFilterIDToName (const int idFF); + static const char* convertFrequencyFilterIDToTitle (const int idFF); + private: double m_bw; int m_nFilterPoints; @@ -146,10 +165,10 @@ class SignalFilter { double* m_vecFourierSinTable; complex* m_complexVecFilter; #ifdef HAVE_FFTW - fftw_plan m_planForward, m_planBackward; - fftw_complex* m_vecFftInput; -#else - complex* m_vecFftInput; + fftw_real* m_vecRealFftInput, *m_vecRealFftSignal; + rfftw_plan m_realPlanForward, m_realPlanBackward; + fftw_complex* m_vecComplexFftInput, *m_vecComplexFftSignal; + fftw_plan m_complexPlanForward, m_complexPlanBackward; #endif bool m_fail; @@ -157,24 +176,37 @@ class SignalFilter { string m_nameFilter; string m_nameFilterMethod; string m_nameDomain; - FilterID m_idFilter; - FilterMethodID m_idFilterMethod; - DomainID m_idDomain; + string m_nameFrequencyFilter; + int m_idFilter; + int m_idFilterMethod; + int m_idFrequencyFilter; + int m_idDomain; double m_filterParam; - int m_numIntegral; int m_traceLevel; int m_zeropad; + int m_nOutputPoints; + int m_preinterpolationFactor; + + static const char* s_aszFilterName[]; + static const char* s_aszFilterTitle[]; + static const int s_iFilterCount; + static const char* s_aszFilterMethodName[]; + static const char* s_aszFilterMethodTitle[]; + static const int s_iFilterMethodCount; + static const char* s_aszDomainName[]; + static const char* s_aszDomainTitle[]; + static const int s_iDomainCount; + static const char* s_aszFrequencyFilterName[]; + static const char* s_aszFrequencyFilterTitle[]; + static const int s_iFrequencyFilterCount; - static const FilterID convertFilterNameToID (const char* filterName); - static const char* convertFilterIDToName (const FilterID filterID); - static const FilterMethodID convertFilterMethodNameToID (const char* filterMethodName); - static const char* convertFilterMethodIDToName (const FilterMethodID filterMethodID); - static const DomainID convertDomainNameToID (const char* domainName); - static const char* convertDomainIDToName (const DomainID domainID); + static int N_INTEGRAL; - void init (const FilterID filt_type, const FilterMethodID filterMethod, double bw, double signalIncrement, int n, double param, const DomainID domain, const int zeropad, const int numInt); + static const bool haveAnalyticSpatial (const int filterID); -double spatialResponseCalc (double x, double param, int n) const; + void init (const int filt_type, const int filterMethod, double bw, double signalIncrement, int n, double param, const int domain, const int frequencyFilter, const int zeropad, const int preInterpScale); + + double spatialResponseCalc (double x, double param) const; double spatialResponseAnalytic (double x, double param) const; @@ -187,5 +219,4 @@ double spatialResponseCalc (double x, double param, int n) const; }; - #endif