From Yuzhong Shen, fix to the image dimensions passed to allocImage in Image::copySubImage
From Yuzhong Shen, fix to the image dimensions passed to allocImage in Image::copySubImage


git-svn-id: 23b6355f2bb369032457de4eb5f713ee134f73a8@3504 16af8721-9629-0410-8352-f15c8da7e697

joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg