void CLASS sony_arw2_load_raw()
{
  uchar *data, *dp;
  ushort pix[16];
  int row, col, val, max, min, imax, imin, sh, bit, i;

  data = (uchar *) malloc (raw_width+1);
  merror (data, "sony_arw2_load_raw()");
#ifdef LIBRAW_LIBRARY_BUILD
  try {
#endif
  for (row=0; row < height; row++) {
#ifdef LIBRAW_LIBRARY_BUILD
    checkCancel();
#endif
    fread (data, 1, raw_width, ifp);
    for (dp=data, col=0; col < raw_width-30; dp+=16) {
      max = 0x7ff & (val = sget4(dp));
      min = 0x7ff & val >> 11;
      imax = 0x0f & val >> 22;
      imin = 0x0f & val >> 26;
      for (sh=0; sh < 4 && 0x80 << sh <= max-min; sh++);
#ifdef LIBRAW_LIBRARY_BUILD
      /* flag checks if outside of loop */
      if(imgdata.params.sony_arw2_options == LIBRAW_SONYARW2_NONE
         || imgdata.params.sony_arw2_options == LIBRAW_SONYARW2_DELTATOVALUE
         )
        {
          for (bit=30, i=0; i < 16; i++)
            if      (i == imax) pix[i] = max;
            else if (i == imin) pix[i] = min;
            else {
              pix[i] = ((sget2(dp+(bit >> 3)) >> (bit & 7) & 0x7f) << sh) + min;
              if (pix[i] > 0x7ff) pix[i] = 0x7ff;
              bit += 7;
            }
        }
      else if(imgdata.params.sony_arw2_options == LIBRAW_SONYARW2_BASEONLY)
        {
          for (bit=30, i=0; i < 16; i++)
            if      (i == imax) pix[i] = max;
            else if (i == imin) pix[i] = min;
            else pix[i]=0;
        }
      else if(imgdata.params.sony_arw2_options == LIBRAW_SONYARW2_DELTAONLY)
        {
          for (bit=30, i=0; i < 16; i++)
            if      (i == imax) pix[i] = 0;
            else if (i == imin) pix[i] = 0;
            else {
              pix[i] = ((sget2(dp+(bit >> 3)) >> (bit & 7) & 0x7f) << sh) + min;
              if (pix[i] > 0x7ff) pix[i] = 0x7ff;
              bit += 7;
            }
        }
      else if(imgdata.params.sony_arw2_options == LIBRAW_SONYARW2_DELTAZEROBASE)
        {
          for (bit=30, i=0; i < 16; i++)
            if      (i == imax) pix[i] = 0;
            else if (i == imin) pix[i] = 0;
            else {
              pix[i] = ((sget2(dp+(bit >> 3)) >> (bit & 7) & 0x7f) << sh);
              if (pix[i] > 0x7ff) pix[i] = 0x7ff;
              bit += 7;
            }
        }
#else
      /* unaltered dcraw processing */
      for (bit=30, i=0; i < 16; i++)
	if      (i == imax) pix[i] = max;
	else if (i == imin) pix[i] = min;
	else {
	  pix[i] = ((sget2(dp+(bit >> 3)) >> (bit & 7) & 0x7f) << sh) + min;
	  if (pix[i] > 0x7ff) pix[i] = 0x7ff;
	  bit += 7;
	}
#endif

#ifdef LIBRAW_LIBRARY_BUILD
      if(imgdata.params.sony_arw2_options == LIBRAW_SONYARW2_DELTATOVALUE)
        {
          for (i=0; i < 16; i++, col+=2)
            {
              unsigned slope = pix[i] < 1001? 2 : curve[pix[i]<<1]-curve[(pix[i]<<1)-2];
              unsigned step = 1 << sh;
              RAW(row,col)=curve[pix[i]<<1]>black+imgdata.params.sony_arw2_posterization_thr?
                LIM(((slope*step*1000)/(curve[pix[i]<<1]-black)),0,10000):0;
            }
        }
      else
        {
          for (i=0; i < 16; i++, col+=2)
            RAW(row,col) = curve[pix[i] << 1];
        }
#else
      for (i=0; i < 16; i++, col+=2)
	RAW(row,col) = curve[pix[i] << 1] >> 2;
#endif
      col -= col & 1 ? 1:31;
    }
  }
#ifdef LIBRAW_LIBRARY_BUILD
  } catch(...) {
    free (data);
    throw;
  }
  if(imgdata.params.sony_arw2_options == LIBRAW_SONYARW2_DELTATOVALUE)
    maximum=10000;
#endif
  free (data);
}