[Dirac-commits] compress/libdirac_common wavelet_utils.cpp, 1.25, 1.26

[Thomas D. <tj...@us...>]

Update of /cvsroot/dirac/compress/libdirac_common
In directory sc8-pr-cvs12.sourceforge.net:/tmp/cvs-serv23623/libdirac_common

Modified Files:
	wavelet_utils.cpp 
Log Message:
Fixed bug with rounding offset in non-mmx code.


Index: wavelet_utils.cpp
===================================================================
RCS file: /cvsroot/dirac/compress/libdirac_common/wavelet_utils.cpp,v
retrieving revision 1.25
retrieving revision 1.26
diff -C2 -d -r1.25 -r1.26
*** wavelet_utils.cpp	5 Oct 2006 15:22:52 -0000	1.25
--- wavelet_utils.cpp	3 Jan 2007 16:03:18 -0000	1.26
***************
*** 455,460 ****
  void WaveletTransform::VHFilter::ShiftRowRight(ValueType *row, int length, int shift)
  {
      for (int i = 0; i < length; ++i)
!         row[i] = ((row[i]+1)>>shift);
  }
  #endif
--- 455,461 ----
  void WaveletTransform::VHFilter::ShiftRowRight(ValueType *row, int length, int shift)
  {
+     const ValueType halfway( 1<<(shift-1) );
      for (int i = 0; i < length; ++i)
!         row[i] = ((row[i]+halfway)>>shift);
  }
  #endif