_kiss_fft_guts.h File Reference

#include "kiss_fft.h"
#include <limits.h>

Classes
struct	kiss_fft_state

Macros
#define	MAXFACTORS   32
#define	S_MUL(a, b)   ( (a)*(b) )
#define	C_MUL(m, a, b)
#define	C_FIXDIV(c, div)   /* NOOP */
#define	C_MULBYSCALAR(c, s)
#define	CHECK_OVERFLOW_OP(a, op, b)   /* noop */
#define	C_ADD(res, a, b)
#define	C_SUB(res, a, b)
#define	C_ADDTO(res, a)
#define	C_SUBFROM(res, a)
#define	KISS_FFT_COS(phase)   (kiss_fft_scalar) cos(phase)
#define	KISS_FFT_SIN(phase)   (kiss_fft_scalar) sin(phase)
#define	HALF_OF(x)   ((x)*.5)
#define	kf_cexp(x, phase)
#define	pcpx(c)    fprintf(stderr,"%g + %gi\n",(double)((c)->r),(double)((c)->i) )
#define	KISS_FFT_TMP_ALLOC(nbytes)   KISS_FFT_MALLOC(nbytes)
#define	KISS_FFT_TMP_FREE(ptr)   KISS_FFT_FREE(ptr)

Macro Definition Documentation

C_ADD

#define C_ADD	(		res,
			a,
			b
	)

Value:

    do { \
      CHECK_OVERFLOW_OP((a).r,+,(b).r)\
      CHECK_OVERFLOW_OP((a).i,+,(b).i)\
      (res).r=(a).r+(b).r;  (res).i=(a).i+(b).i; \
    }while(0)

C_ADDTO

#define C_ADDTO	(		res,
			a
	)

Value:

    do { \
      CHECK_OVERFLOW_OP((res).r,+,(a).r)\
      CHECK_OVERFLOW_OP((res).i,+,(a).i)\
      (res).r += (a).r;  (res).i += (a).i;\
    }while(0)

C_FIXDIV

#define C_FIXDIV	(		c,
			div
	)		/* NOOP */

C_MUL

#define C_MUL	(		m,
			a,
			b
	)

Value:

    do{ (m).r = (a).r*(b).r - (a).i*(b).i;\
        (m).i = (a).r*(b).i + (a).i*(b).r; }while(0)

C_MULBYSCALAR

#define C_MULBYSCALAR	(		c,
			s
	)

Value:

    do{ (c).r *= (s);\
        (c).i *= (s); }while(0)

C_SUB

#define C_SUB	(		res,
			a,
			b
	)

Value:

    do { \
      CHECK_OVERFLOW_OP((a).r,-,(b).r)\
      CHECK_OVERFLOW_OP((a).i,-,(b).i)\
      (res).r=(a).r-(b).r;  (res).i=(a).i-(b).i; \
    }while(0)

C_SUBFROM

#define C_SUBFROM	(		res,
			a
	)

Value:

    do {\
      CHECK_OVERFLOW_OP((res).r,-,(a).r)\
      CHECK_OVERFLOW_OP((res).i,-,(a).i)\
      (res).r -= (a).r;  (res).i -= (a).i; \
    }while(0)

CHECK_OVERFLOW_OP

#define CHECK_OVERFLOW_OP	(		a,
			op,
			b
	)		/* noop */

HALF_OF

#define HALF_OF

(

x

)

((x)*.5)

kf_cexp

#define kf_cexp	(		x,
			phase
	)

Value:

  do{ \
    (x)->r = KISS_FFT_COS(phase);\
    (x)->i = KISS_FFT_SIN(phase);\
  }while(0)

KISS_FFT_COS

#define KISS_FFT_COS

(

phase

)

(kiss_fft_scalar) cos(phase)

KISS_FFT_SIN

#define KISS_FFT_SIN

(

phase

)

(kiss_fft_scalar) sin(phase)

KISS_FFT_TMP_ALLOC

#define KISS_FFT_TMP_ALLOC

(

nbytes

)

KISS_FFT_MALLOC(nbytes)

KISS_FFT_TMP_FREE

#define KISS_FFT_TMP_FREE

(

ptr

)

KISS_FFT_FREE(ptr)

MAXFACTORS

#define MAXFACTORS   32

pcpx

#define pcpx

(

c

)

fprintf(stderr,"%g + %gi\n",(double)((c)->r),(double)((c)->i) )

S_MUL

#define S_MUL	(		a,
			b
	)		( (a)*(b) )