1 What's not implemented (and should be)
2 --------------------------------------
5 - create, destroy bitmap
6 - blit bitmaps (should respect rotation and pixel formats)
7 - bitmap rotation (in order to speed up rotated blits)
8 - loading bitmaps from image files (jpg, png, bmp, pnm ...)
11 - finish framebuffer backend (SDL does not work on most of my framebuffers)
12 - other than SDL X backend (SDL does support only one window)
13 - some overall initialization routines
22 - drawing with alpha channel