t6k11: use the gint array for variant detection
r61524: use true triple buffering by default
display: define DWIDTH and DHEIGHT
display: add C_RGB(r,g,b) (0 ≤ r,g,b ≤ 31) [fxcg50]
This change adds a keydown() function that is synchronized with events,
ie. it returns the key state as seen by previously read events.
It also completely eliminates low-level repeat events, which are not
very meaningul as the keyboard scan frequency goes up (and would be
meaningless if KEYSC interrupts were used), and adapts getkey() by
giving it access to the current driver time through pollevent().