New Sdl Libraries Found

[sbock]

I found a file archive including Wiz SDL libraries on www.gpain.com. The zip file says v410.

With this SDL files you can eliminate tearing. It only works flawlessly with a few applications.
I succsessfully tested:

-Sqdef
-Blix2x
-Reminiscence

Just copy to two files "libm.so.6" and "libsdl-1.2.so.0" to the folder of the game.

Ironically you can hardly notice any tearing in theses games even without the files. ;-)

http://dl.openhandhelds.org/cgi-bin/wiz.cgi?0,0,0,0,23,138

Regards,
Stephan

 

[Pickle]

are we sure these are new? There were SDL libs that attempted to fix the tear but introduced a massive performance decrease.

 

[Squidge]

I'm interested in why the need for a replacement libm...

 

[Sphinxter]

I'm interested in why the need for a replacement libm...

Thought the interesting part was where those files will fix screen tearing you can't even notice without them.

 

[Alex.]

The performance is very bad. Blix2x maxes out at 41fps, not funny on a 530MHz cpu I hope this is the old software solution, and an OpenGL-powered fix is still on the way.

Thought the interesting part was where those files will fix screen tearing you can't even notice without them.

Games that don't have moving screens don't really suffer from tearing, in this case you only notice it when the screens fade to black.

 

[sbock]

are we sure these are new?

No, my korean is a bit rusty ;-)

 

[mittens]

Okay, I guess this is the time for me

I was kind of surprise when I found this in archieve since I took it as a simple beta patch for Korean forum only The author (cyko4666 a.k.a. ikari) made it for reducing screen-tearing for SDL-based applications - mainly target for Waffle and Onscriptor.

If you have any technical question, let me know. I'll try to contact him.

Below is the translation of his original post.

---------------------------

This is the patch using SDL source code from F series for reducing screen tearing for SDL-applications like Onscriptor/Waffle on Wiz.

** Usage: Copy included libSDL-1.2.so.0 and libm.so.6 into directory where execution file of Waffle/Onsciptor is in.
It might work with other SDL application but haven't tested yet.

** Warning: Wiz Exclusive. It will lock up your machine if your is one of F series.
It might be unstable because this is lower version (1.2.7) than included SDL library in Wiz(1.2.11)

** File description

libSDL-1.2.so.0 :

Compiled SDL library of F200 (http://dev.gp2x.com/files/sources/SDL_v410_src.tar.gz) with tearing reduction code.
Modified SDL source will be uploaded in dev archive later(Korean forum)

libm.so.6 :

Original libm.so.6 library has some problem that make a few screen effects of Waffle/Onscriptor act incorrectly. (Specifically Trigonometric functions)
It can easily solved by using libm.so.6 for F series.
This file is from official SDK and nothing modified. (http://dev.gp2x.com/sdk)

-------------------

That's it.

I hope this can answer some of your questions