SDL Graphics library usage on NIOS II

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originally posted by drunken79@Feb 21 2007, 11:29 AM

hi,

i run successfuly sdl on nios2. using the vga framebuffer from nioswiki and

libsdl from blackfin uclinux. but it is real slooow with fbcon output and even slooooower

with nano-x output http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/biggrin.gif

libsdl from blackfin uclinux is stock libsdl with some map_shared/map_private patches in video_fbcon.c for dealing with nommu targets.

i guess the framebuffer from nioswiki is not realy the best choice for fast graphics , it lacks on burst memory interface and does not support dubble buffering in uclinux(?).

let me know if you need my libsdl sources.

claude

btw: does anybody know how to use the nios2 fpu in uclinux ? using soft float with

graphics make things even worse. glxgears with 0.5fps makes me dizzy http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/blink.gif

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Hi Claude,

Yes , it would be very,very nice if you could provide me your libsdl sources.

By the way, do you speak french ? If yes, it should be easier for us to talk http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

Thanks a lot.