Implemented copying from A1R5G5B5 to L8 and A8L8.
Fixed the copying range.
TRAC #14885
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: http://angleproject.googlecode.com/svn/trunk@515 736b8ea6-26fd-11df-bfd4-992fa37f6226
1 file changed