[Bug 110229] Textures binded to framebuffer objects or images are not correctly updated.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Mar 30 18:41:08 UTC 2019


https://bugs.freedesktop.org/show_bug.cgi?id=110229

--- Comment #16 from Laurent <laurentduroisin at gmail.com> ---
Erf this is really bad for me, I can't find a tutorial on how to use the DRM
lib to communicate with the graphic chip, the mesa source code is too much
complicated for a beginner.
And All I see are c++ functions calls like memset, and for calling the GPU
thread I also doesn't know how it works but I guess linux load the instructions
in the gpu memory itself with DRM I think. 
And it seems that gnome use the graphic driver because without it, gnome
doesn't start, and I even don't know how gnome communicate with the driver. 
I also don't know if opengl functions are loaded in a specific memory location
to retrieve the function ptr address later or, simply calling a function with a
specific name in a the OpenGL lib file.

I'm afraid I can't do anything now, or, simply don't using FBO or shader images
because it doesn't works.

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