Screen pixel manipulation?
I was recently asked by a friend if I could write him a screensaver that did something similar to an opengl screensaver - just without opengl. the basic concept was to manipulate pixels on the screen to create a wave effect.
The only thing standing in my way is that I need some way to manipulate pixels on the screen. opengl has several function for that, as "man -k pixel" revealed, but I don't seem to find any other libraries for it. Reasonably, the X-server needs to have something of that sort, perhaps even something related to ncurses (??? ).
If anybody knows what libraries I can use to accomplish this, please give me a hint.