ray e6a9754cb8 o Add new vd_driver method to do bitblt with mask, named vd_maskbitbltchr.
o Move vd_bitbltchr vga's driver method to vd_maskbitbltchr.
o Implement new vd_bitbltchr method for vga driver. (It do single write for 8
	pixels, have to be a bit faster).

MFC after:	7 days
Sponsored by:	The FreeBSD Foundation
2014-03-28 22:04:27 +00:00
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