Rounds the origin and size of the given rectangle to
their nearest integer values; the rounding is guaranteed
to be large enough to have an area bigger or equal to the
original rectangle, but might not fully contain its extents.
Use graphene.rect.Rect.roundExtents in case you need to round
to a rectangle that covers fully the original one.
This function is the equivalent of calling floor on
the coordinates of the origin, and ceil on the size.
Rounds the origin and size of the given rectangle to their nearest integer values; the rounding is guaranteed to be large enough to have an area bigger or equal to the original rectangle, but might not fully contain its extents. Use graphene.rect.Rect.roundExtents in case you need to round to a rectangle that covers fully the original one.
This function is the equivalent of calling floor on the coordinates of the origin, and ceil on the size.