Check for row and column out-of-bounds before verifying ChangedLocalsPtr  in PixelLineSearch() to protect against dereferencing the pointer when we're outside the allocated area. This was causing a segfault with some files under current OpenBSD.
Check for row and column out-of-bounds before verifying ChangedLocalsPtr 
in PixelLineSearch() to protect against dereferencing the pointer when
we're outside the allocated area. This was causing a segfault with some
files under current OpenBSD.


git-svn-id: 8dbf393e6e9ab8d4979d29f9a341a98016792aa6@11043 0101bb08-14d6-0310-b084-bc0e0c8e3800

Distrotech/libtheora,KTXSoftware/theora,Distrotech/libtheora,KTXSoftware/theora,Distrotech/libtheora,Distrotech/libtheora,KTXSoftware/theora,KTXSoftware/theora,Distrotech/libtheora,KTXSoftware/theora