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                        (C) Copyright Fraunhofer IIS (2005)
                               All Rights Reserved

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    Fraunhofer IIS Software Evaluation Agreement
    between Google Inc. and  Fraunhofer
    effective and in full force since March 1, 2012.

    You may use this software and/or program only under the terms and
    conditions described in the above mentioned Fraunhofer IIS Software
    Evaluation Agreement. Any other and/or further use requires a separate agreement.


   $Id$
   Author(s): Arthur Tritthart
   Description: Scaling operations for ARM

   This software and/or program is protected by copyright law and international
   treaties. Any reproduction or distribution of this software and/or program,
   or any portion of it, may result in severe civil and criminal penalties, and
   will be prosecuted to the maximum extent possible under law.

******************************************************************************/
/* prevent multiple inclusion with re-definitions */
#ifndef __INCLUDE_SCALE_ARM__
#define __INCLUDE_SCALE_ARM__

#define FUNCTION_scaleValuesWithFactor_DBL

SCALE_INLINE
void scaleValuesWithFactor(
        FIXP_DBL *vector,
        FIXP_DBL factor,
        INT len,
        INT scalefactor
        )
{
  /* This code combines the fMult with the scaling             */
  /* It performs a fMultDiv2 and increments shift by 1         */
  int shift = scalefactor + 1;
  FIXP_DBL *mySpec = vector;

  shift = fixmin_I(shift,(INT)DFRACT_BITS-1);

  if (shift >= 0)
  {
    for (int i=0; i<(len>>2); i++)
    {
      FIXP_DBL tmp0 = mySpec[0];
      FIXP_DBL tmp1 = mySpec[1];
      FIXP_DBL tmp2 = mySpec[2];
      FIXP_DBL tmp3 = mySpec[3];
      tmp0 = fMultDiv2(tmp0, factor);
      tmp1 = fMultDiv2(tmp1, factor);
      tmp2 = fMultDiv2(tmp2, factor);
      tmp3 = fMultDiv2(tmp3, factor);
      tmp0 <<= shift;
      tmp1 <<= shift;
      tmp2 <<= shift;
      tmp3 <<= shift;
      *mySpec++ = tmp0;
      *mySpec++ = tmp1;
      *mySpec++ = tmp2;
      *mySpec++ = tmp3;
    }
    for (int i=len&3; i--;)
    {
      FIXP_DBL tmp0 = mySpec[0];
      tmp0 = fMultDiv2(tmp0, factor);
      tmp0 <<= shift;
      *mySpec++ = tmp0;
    }
  }
  else
  {
    shift = -shift;
    for (int i=0; i<(len>>2); i++)
    {
      FIXP_DBL tmp0 = mySpec[0];
      FIXP_DBL tmp1 = mySpec[1];
      FIXP_DBL tmp2 = mySpec[2];
      FIXP_DBL tmp3 = mySpec[3];
      tmp0 = fMultDiv2(tmp0, factor);
      tmp1 = fMultDiv2(tmp1, factor);
      tmp2 = fMultDiv2(tmp2, factor);
      tmp3 = fMultDiv2(tmp3, factor);
      tmp0 >>= shift;
      tmp1 >>= shift;
      tmp2 >>= shift;
      tmp3 >>= shift;
      *mySpec++ = tmp0;
      *mySpec++ = tmp1;
      *mySpec++ = tmp2;
      *mySpec++ = tmp3;
    }
    for (int i=len&3; i--;)
    {
      FIXP_DBL tmp0 = mySpec[0];
      tmp0 = fMultDiv2(tmp0, factor);
      tmp0 >>= shift;
      *mySpec++ = tmp0;
    }
  }
}

#endif /* #ifndef __INCLUDE_SCALE_ARM__ */