How does ZC look like crap at high resolutions? I removed the sbig stuff back during RC3 in favor of allowing users to set any arbitrary window size/resolution -- it should scale perfectly to any size rect while maintaining aspect ratio. If you are getting hardware stretching in full-screen you need to set res_x, res_y to match the ratio in your display settings.

I have no problem with adding an option to use any alternate (non-allegro) magnification-filtering algorithm to draw the screen in ZC. An option to use these can be placed in the config file and launcher, and perhaps a shortcut key as well. If someone wants to contribute one then be my guest. :).

[code should be written in c or c++ and make use of allegro bitmaps (and be working, obviously), preferably wrapped in a single function call] ex:
Code:
void hq2x_blit(BITMAP* src, BITMAP* dest, int scale, int source_x, int source_y, int source_w, int source_h); // x,y,w,h; we don't need to scale entire source bitmap (black border pixels)
[edit] Actually, the size is always 224, 168 I think...