_kiss_fft_guts.h File Reference

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

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Classes
struct	kiss_fft_state

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

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)

Definition at line 118 of file _kiss_fft_guts.h.

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)

Definition at line 134 of file _kiss_fft_guts.h.

C_FIXDIV

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

Definition at line 105 of file _kiss_fft_guts.h.

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)

Definition at line 99 of file _kiss_fft_guts.h.

C_MULBYSCALAR

#define C_MULBYSCALAR	(		c,
			s
	)

Value:

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

Definition at line 106 of file _kiss_fft_guts.h.

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)

Definition at line 126 of file _kiss_fft_guts.h.

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)

Definition at line 143 of file _kiss_fft_guts.h.

CHECK_OVERFLOW_OP

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

Definition at line 115 of file _kiss_fft_guts.h.

HALF_OF

#define HALF_OF

(

x

)

((x) * ((kiss_fft_scalar).5))

Definition at line 163 of file _kiss_fft_guts.h.

kf_cexp

#define kf_cexp	(		x,
			phase
	)

Value:

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

Definition at line 166 of file _kiss_fft_guts.h.

KISS_FFT_COS

#define KISS_FFT_COS

(

phase

)

(kiss_fft_scalar) cos(phase)

Definition at line 161 of file _kiss_fft_guts.h.

KISS_FFT_SIN

#define KISS_FFT_SIN

(

phase

)

(kiss_fft_scalar) sin(phase)

Definition at line 162 of file _kiss_fft_guts.h.

KISS_FFT_TMP_ALLOC

#define KISS_FFT_TMP_ALLOC

(

nbytes

)

KISS_FFT_MALLOC(nbytes)

Definition at line 186 of file _kiss_fft_guts.h.

KISS_FFT_TMP_FREE

#define KISS_FFT_TMP_FREE

(

ptr

)

KISS_FFT_FREE(ptr)

Definition at line 187 of file _kiss_fft_guts.h.

MAXFACTORS

#define MAXFACTORS   32

Definition at line 21 of file _kiss_fft_guts.h.

pcpx

#define pcpx

(

c

)

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

Definition at line 174 of file _kiss_fft_guts.h.

S_MUL

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

Definition at line 98 of file _kiss_fft_guts.h.