Commit 4b025984 authored by vaclav's avatar vaclav
Browse files

fix in DoRTFTn_fx()

parent 6a1be233

lib_com/fft_fx_evs.c

+22 −6
Original line number Diff line number Diff line
@@ -32,11 +32,6 @@ static void fft64_16fx( Word16 *x, Word16 *y, const Word16 *Idx ); 
static void fft5_32_16fx( Word16 *zRe, Word16 *zIm, const Word16 *Idx );

static void cdftForw_16fx( Word16 n, Word16 *a, const Word16 *ip, const Word32 *w );



#include "math_32.h"



/*-----------------------------------------------------------------*

 * Local functions

 *-----------------------------------------------------------------*/

static void cdftForw_fx( Word16 n, Word32 *a, const Word16 *ip, const Word16 *w );

static void bitrv2_SR_fx( Word16 n, const Word16 *ip, Word32 *a );

static void cftfsub_fx( Word16 n, Word32 *a, const Word16 *w );
@@ -44,6 +39,12 @@ static void cft1st_fx( Word16 n, Word32 *a, const Word16 *w ); 
static void cftmdl_fx( Word16 n, Word16 l, Word32 *a, const Word16 *w );





/*-----------------------------------------------------------------*

 * DoRTFTn_fx()

 *

 *

 *-----------------------------------------------------------------*/



void DoRTFTn_fx(

    Word32 *x, /* i/o : real part of input and output data Q(x)      */

    Word32 *y, /* i/o : imaginary part of input and output data Q(x) */
@@ -113,7 +114,22 @@ void DoRTFTn_fx( 
    }



#ifdef OPTIMIZE_FFT_STACK

    IF( spec == NULL )

    IF( spec != NULL )

    {

        spec[0].re = z[0];

        move16();

        spec[0].im = z[1];

        move16();

        pt = &z[2];

        FOR( i = n - 1; i >= 1; i-- )

        {

            spec[i].re = *pt++;

            move16();

            spec[i].im = *pt++;

            move16();

        }

    }

    ELSE

    {

#endif

        x[0] = z[0];