Comment # 5 on bug 100393 from Mika

Created attachment 131369 [details] [review]
few tweaks to make it work

This patch will provide 4 new options in driconf.

You must activate them prior launching CEMU, they're labeled :

- Bypass mesa_Uniform when location is -1
- In core profile allow glDrawArray with primitives > GL_TRIANGLES
- In core profile allow glGetString(GL_EXTENSIONS)
- Allow a uncompatible VBO validation against core profile

Activate all of them and activate too :

- Force GLSL extension behavior to 'warn'

And then disable (or check that it's not enabled) :

 - Enable offloading GL driver work to a separate thread

Then launch CEMU like this :

MESA_GL_VERSION_OVERRIDE=4.5 wine64 Cemu.exe

I barely tested it with radeonsi on a R9-270X and it seems to work (at least
for me)

If you find an issue (except the way I code :) ) I'll be interested to know
about it.