I've now updated nSDL to 0.3.2. I've done some major housekeeping, the code should be a lot cleaner and everything should be nicely organized (the current video code for instance (here) is nearly twice as small as 0.2.0's 400-liner (here)). I've purged all crap from everywhere, no more mouse support because it wasn't perfect when using SDL_PollEvent() and I couldn't bother to debug it (and I think Lua's better for that kind of stuff), no more diagonal arrow key support I added in the previous version. Removing those two simplified the event fetching code to a simple little loop, which means it's faster and I'm much more content with it. It's such a rewarding feeling to clean shit up.

Anyway I also added SDL_gfx and updated fdlibm no one's heard about (it's a working, fast, Sun's full implementation of math.h functions; newlib's math functions don't work): https://github.com/Hoffa/nSDL/wiki/Additional-libraries
I haven't really tested SDL_gfx THAT MUCH, but it should run alright. SDL_gfx allows you to rotate and stretch images, draw anti-aliased lines, circles, triangles and all of your deepest fantasies. If I remember correctly it should do some heavy surface conversions on the fly so it might be pretty damn slow on a calculator, but I haven't tested so what do I know.

So here are the changes:
- Removed mouse, diagonal arrow key support
- Using SDL_GetVideoInfo() should now always give accurate information
- Faster event loop
- A LOT of cleaning up
- Apart from nSDL itself, added SDL_gfx and updated fdlibm

I think I'm finally ready to leave my baby for quite a long time.

Is there any way of easily finding where you made changes to the SDL source? I would like to look a little to see what it takes to port it to a new platform

Sure. Check out the source code here: https://github.com/Hoffa/nSDL
If you don't see "Initial commit." next to the file, it means I've changed something. Click on the message the view the changes of that commit. You can browse different commits here also: https://github.com/Hoffa/nSDL/commits/master
Most of the interesting stuff is in the src/ folder obviously.

In libndls.h, included by os.h.

Quote from: DJ_O on April 05, 2012, 08:49:36 am

Wow that looks great. When this is available for download, I need to try the color version to see how this looks like on my CX (assuming a demo of the above is made available?).

Of course! 

CX:
http://www.mediafire.com/?7omfqojuxjjrpp2
Touchpad/Clickpad:
http://www.mediafire.com/?ax8dyd9xqgjb2z5

And here's the source (just ignore my dirty random generator at the end):
http://pastebin.com/gqjXDTBw

Also, please note that the actual code that generates the plasma effect was not made by me, this is just a port of a demo available here.

Trying to recompile the plasma demo, I get an undefined reference to the sinus function.
How did you do?

Thanks.

He finally got it working with   -lm 

Here's the game he ported : http://tiplanet.org/forum/viewtopic.php?p=126303#p126303

fdlibm eh? Gotta try on the Prizm. Unless someone manages to make it work with newlib.

so I heard that there's a gba emulator using SDL or something (at least I think that's what calc84maniac said before). Will it be possible to port it to nspire?

O.o I can't wait!