reha@orion.UUCP (10/24/83)
Bitmaps are great! You can use bitblts (rasterops) on them. Get a copy of the Smalltalk implementation book and turn to the chapter on bitblt. It translates almost directly into C and can be made very efficient. I have implemented it on my Lisa (running 3.0 UNIX) and it has acceptable performance. vax135!orion!reha