VBoxVideo: logging
header (C) fixes
re-applied r69255, r69257: properly wrap mem* to xf86mem* for older XF86 modules
backed out r69255, r69257 (does currently not compile)
properly wrap mem* to xf86mem* for older XF86 modules
Additions/common/VBoxVideo: fixed a memory leak due to a typo
Additions/common/VBoxVideo and Additions/WINNT/Graphics: modesetting clean-up
Additions/common/VBoxVideo and Additions/WINNT/Graphics: some adjustments to the common VBoxVideo code
Additions/WINNT/Graphics and Additions/common/VBoxVideo: move the base VBVA support functions into the common driver code