Testing VirtualBox 2d accel

[Adam Vande More]

There appear to be some issues with this functionality on FreeBSD
VirtualBox.  First one is the remote ssh problem already brought up.  I also
decided to benchmark a VM with 2d accel enabled vs one with it off.  The VM
was is running XP SP3 with 128 MB allocated to the emulated video card.  The
benchmark program is 2dbench from tom's hardware.  In short, the patch
appear to not help performance and perhaps even hurt it.

The result from 2d enabled:

text -- 8053, 9045, 7741,
line -- 12902, 11469, 11629,
splines/bezier  --  8948, 8138, 7413
polygon --  6548, 5961, 6360
rectangle --  5030, 5068, 4907
arc/ellipse --  12002, 11801, 11801
blitting --  6739, 6820, 6544
streching -- 413, 386, 407
total -- 830, 814, 792

The result from 2d disabled:

text -- 8291, 9714, 8280
line -- 11776, 11756, 13138
splines/bezier  --  9583, 8377, 8178
polygon --  7201, 7167, 7342
rectangle --  4969, 4487, 4645
arc/ellipse --  14025, 13793, 13068
blitting --  6765, 6812, 6765
streching -- 385, 390, 386
total --  879, 869, 847

-- 
Adam Vande More