I went to a private school, where the only CS class was game programming; and it was offered as an art elective [0]. The class itself was very much a programming class, requiring only a couple of supplemental lunch time classes to be prepared for the AP exam [1].

[0] According to the teacher, the class was originally planned as offering a CS credit; but was changed to art when they realized that a CS credit is not a graduation requirement, while art credits were.

[1] This was not out of the norm for my school. The only class that was designed for the AP was calculus.