Torbjörn Andersson 8a91ae3257 Adapted LavosSpawn's idea for more efficient screen updating. It still
renders the entire screen every frame, but it tries to update (i.e. copy to
the backend) only the parts of the screen that actually changed. At least
approximately so.

svn-id: r12142
2004-01-04 15:11:30 +00:00
..
2003-07-28 01:47:41 +00:00
2004-01-03 19:12:23 +00:00
2004-01-03 19:12:23 +00:00