[Bug 93144] [radeonsi] Alien: Isolation feature request

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Apr 3 00:39:35 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=93144

--- Comment #26 from Christoph Haag <haagch at frickel.club> ---
(In reply to Alexandre Demers from comment #24)
> Ok, I saw the comment in Phoronix' forum. I suspect the extension to still
> be disabled in his case.

glxinfo says opengl 4.2 and that the compute shader extension is there.

I tried making an apitrace, but it turned out to be 6.1 gigabyte, so I'm not
uploading that if there's no real need.

I don't know terribly much about shaders, but if I see
68300 @1 glCreateShader(type = GL_COMPUTE_SHADER) = 3085
68301 @1 glShaderSource(shader = 3085, count = 1, string = ["#version 420 core
etc...
68302 @1 glCompileShader(shader = 3085)
in apitrace, doesn't that mean it successfully uses compute shaders?

Mesa: User error: GL_INVALID_OPERATION in unsupported function called
(unsupported extension or deprecated function?)

But the skeptical approach might be the right one, that my first test didn't
actually test it with compute shaders.

I tried it with MESA_GL_VERSION_OVERRIDE=4.3fc MESA_GLSL_VERSION_OVERRIDE=430fc
to see whether the game would do something different - and if I'm not
completely blind it does look a lot better beyond the colorful flickering,
doesn't it?

New Video: https://www.youtube.com/watch?v=ueoELXXduvk

It did say once on startup:
  Mesa: User error: GL_INVALID_OPERATION in unsupported function called
(unsupported extension or deprecated function?)
so there's possibly still something missing. (would be nice for mesa to
actually print what the "unsupported function" is)

Anyway, not investigating further right now because I want to go to sleep
before 3 AM.

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