[SOLVED] Need SDL2 tutorial and how to I scale textures ?

metaschima · 05-04-2014, 04:12 PM

I'm looking to port an SDL 1.2 program to SDL2, but the API has changed tremendously and is very confusing to me. Any good tutorials yet ? If not I guess I'll wait until then to port it. A C tutorial would be best, but C++ works too.

How do I scale textures nicely (with aliasing) because SDL_gfx rotozoom only works on surfaces ? This is annoying. There seems to be some linear scaling part of SDL2, but who wants that ?

Thanks. I can post the program I am trying to port, it's not very long.

metaschima · 05-04-2014, 08:57 PM

Alright, I found a decent tutorial, so I will mark this solved.
http://lazyfoo.net/tutorials/SDL/

I was confused about the new rendering system, but I didn't realize that I don't have to use it. Fixed it up in 10 minutes after looking over the tutorial. Mostly just search and replace stuff.

EDIT:
Here's something weird tho. While messing with the rendering system I was able to cause Xorg to hang with 'EQ overflow' or something like that. Oh well.

metaschima · 05-10-2014, 11:25 AM

In case someone is looking for migration guides:
https://wiki.libsdl.org/MigrationGuide
http://www.alexdantas.net/notes/moving-to-sdl-2.html
http://forums.tigsource.com/index.php?topic=36909.0

As a note, SDL2 no longer updates the window when it is exposed, you have to do this yourself by checking 'SDL_WINDOWEVENT_EXPOSED'. This took me a while to figure out.