Eliminated D3DXLoadSurfaceFromSurface from glGenerateMipmaps. TRAC #21621 Issue=311 Signed-off-by: Shannon Woods Signed-off-by: Daniel Koch Author: Nicolas Capens git-svn-id: https://angleproject.googlecode.com/svn/trunk@1312 736b8ea6-26fd-11df-bfd4-992fa37f6226