Author: mikej Date: Wed May 27 18:22:15 2009 New Revision: 13476 Log: dos2unix Modified: freeswitch/trunk/src/mod/applications/mod_stress/FFTReal.h Modified: freeswitch/trunk/src/mod/applications/mod_stress/FFTReal.h ============================================================================== --- freeswitch/trunk/src/mod/applications/mod_stress/FFTReal.h (original) +++ freeswitch/trunk/src/mod/applications/mod_stress/FFTReal.h Wed May 27 18:22:15 2009 @@ -1,139 +1,139 @@ -/***************************************************************************** -* * -* DIGITAL SIGNAL PROCESSING TOOLS * -* Version 1.03, 2001/06/15 * -* (c) 1999 - Laurent de Soras * -* * -* FFTReal.h * -* Fourier transformation of real number arrays. * -* Portable ISO C++ * -* * -* Tab = 3 * -*****************************************************************************/ - - - -#if defined (FFTReal_CURRENT_HEADER) - #error Recursive inclusion of FFTReal header file. -#endif -#define FFTReal_CURRENT_HEADER - -#if ! defined (FFTReal_HEADER_INCLUDED) -#define FFTReal_HEADER_INCLUDED - - - -#if defined (_MSC_VER) -#pragma pack (push, 8) -#endif // _MSC_VER - - - -class FFTReal -{ - -/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ - -public: - - /* Change this typedef to use a different floating point type in your FFTs - (i.e. float, double or long double). */ - typedef float flt_t; - - explicit FFTReal (const long length); - ~FFTReal (); - void do_fft (flt_t f [], const flt_t x []) const; - void do_ifft (const flt_t f [], flt_t x []) const; - void rescale (flt_t x []) const; - - - -/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ - -private: - - /* Bit-reversed look-up table nested class */ - class BitReversedLUT - { - public: - explicit BitReversedLUT (const int nbr_bits); - ~BitReversedLUT (); - const long * get_ptr () const - { - return (_ptr); - } - private: - long * _ptr; - }; - - /* Trigonometric look-up table nested class */ - class TrigoLUT - { - public: - explicit TrigoLUT (const int nbr_bits); - ~TrigoLUT (); - const flt_t * get_ptr (const int level) const - { - return (_ptr + (1L << (level - 1)) - 4); - }; - private: - flt_t * _ptr; - }; - - const BitReversedLUT _bit_rev_lut; - const TrigoLUT _trigo_lut; - const flt_t _sqrt2_2; - const long _length; - const int _nbr_bits; - flt_t * _buffer_ptr; - - - -/*\\\ FORBIDDEN MEMBER FUNCTIONS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ - -private: - - FFTReal (const FFTReal &other); - const FFTReal& operator = (const FFTReal &other); - int operator == (const FFTReal &other); - int operator != (const FFTReal &other); -}; - - - -#if defined (_MSC_VER) -#pragma pack (pop) -#endif // _MSC_VER - - - -#endif // FFTReal_HEADER_INCLUDED - -#undef FFTReal_CURRENT_HEADER - - - -/***************************************************************************** - - LEGAL - - Source code may be freely used for any purpose, including commercial - applications. Programs must display in their "About" dialog-box (or - documentation) a text telling they use these routines by Laurent de Soras. - Modified source code can be distributed, but modifications must be clearly - indicated. - - CONTACT - - Laurent de Soras - 92 avenue Albert 1er - 92500 Rueil-Malmaison - France - - ldesoras@club-internet.fr - -*****************************************************************************/ - - - -/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ +/***************************************************************************** +* * +* DIGITAL SIGNAL PROCESSING TOOLS * +* Version 1.03, 2001/06/15 * +* (c) 1999 - Laurent de Soras * +* * +* FFTReal.h * +* Fourier transformation of real number arrays. * +* Portable ISO C++ * +* * +* Tab = 3 * +*****************************************************************************/ + + + +#if defined (FFTReal_CURRENT_HEADER) + #error Recursive inclusion of FFTReal header file. +#endif +#define FFTReal_CURRENT_HEADER + +#if ! defined (FFTReal_HEADER_INCLUDED) +#define FFTReal_HEADER_INCLUDED + + + +#if defined (_MSC_VER) +#pragma pack (push, 8) +#endif // _MSC_VER + + + +class FFTReal +{ + +/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ + +public: + + /* Change this typedef to use a different floating point type in your FFTs + (i.e. float, double or long double). */ + typedef float flt_t; + + explicit FFTReal (const long length); + ~FFTReal (); + void do_fft (flt_t f [], const flt_t x []) const; + void do_ifft (const flt_t f [], flt_t x []) const; + void rescale (flt_t x []) const; + + + +/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ + +private: + + /* Bit-reversed look-up table nested class */ + class BitReversedLUT + { + public: + explicit BitReversedLUT (const int nbr_bits); + ~BitReversedLUT (); + const long * get_ptr () const + { + return (_ptr); + } + private: + long * _ptr; + }; + + /* Trigonometric look-up table nested class */ + class TrigoLUT + { + public: + explicit TrigoLUT (const int nbr_bits); + ~TrigoLUT (); + const flt_t * get_ptr (const int level) const + { + return (_ptr + (1L << (level - 1)) - 4); + }; + private: + flt_t * _ptr; + }; + + const BitReversedLUT _bit_rev_lut; + const TrigoLUT _trigo_lut; + const flt_t _sqrt2_2; + const long _length; + const int _nbr_bits; + flt_t * _buffer_ptr; + + + +/*\\\ FORBIDDEN MEMBER FUNCTIONS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/ + +private: + + FFTReal (const FFTReal &other); + const FFTReal& operator = (const FFTReal &other); + int operator == (const FFTReal &other); + int operator != (const FFTReal &other); +}; + + + +#if defined (_MSC_VER) +#pragma pack (pop) +#endif // _MSC_VER + + + +#endif // FFTReal_HEADER_INCLUDED + +#undef FFTReal_CURRENT_HEADER + + + +/***************************************************************************** + + LEGAL + + Source code may be freely used for any purpose, including commercial + applications. Programs must display in their "About" dialog-box (or + documentation) a text telling they use these routines by Laurent de Soras. + Modified source code can be distributed, but modifications must be clearly + indicated. + + CONTACT + + Laurent de Soras + 92 avenue Albert 1er + 92500 Rueil-Malmaison + France + + ldesoras@club-internet.fr + +*****************************************************************************/ + + + +/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/