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xf86-video-modesetting Gets The GLAMOR Treatment

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  • xf86-video-modesetting Gets The GLAMOR Treatment

    Phoronix: xf86-video-modesetting Gets The GLAMOR Treatment

    Patches are pending to provide the xf86-video-modesetting with GLAMOR hardware acceleration support for 2D...

    Phoronix, Linux Hardware Reviews, Linux hardware benchmarks, Linux server benchmarks, Linux benchmarking, Desktop Linux, Linux performance, Open Source graphics, Linux How To, Ubuntu benchmarks, Ubuntu hardware, Phoronix Test Suite

  • #2
    Originally posted by phoronix View Post
    Phoronix: xf86-video-modesetting Gets The GLAMOR Treatment

    Patches are pending to provide the xf86-video-modesetting with GLAMOR hardware acceleration support for 2D...

    http://www.phoronix.com/vr.php?view=MTgwODY
    Wouldn't this lead to a slow down if your opengl is via llvmpipe?

    Also won't this make most ddx for specific cards redundant?

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    • #3
      Originally posted by AJenbo View Post
      Wouldn't this lead to a slow down if your opengl is via llvmpipe?
      Probably... But it's possible that someone will write/has written some code to detect software GL and not use glamor in that case. Of course, if you've got llvmpipe, you also get SSE/AVX on x86_64 and you might also have a treaded GL software implementation. That might make it perform decently compared to the existing 2d software fallback.

      Originally posted by AJenbo View Post
      Also won't this make most ddx for specific cards redundant?
      I think that's the point. Why would you want to create a new DDX for every new piece of hardware that uses KMS if you don't have to? Now, you can instead use the modesetting driver if you don't need to customize it, or you can use the modesetting driver as a base for any new DDX that supports a card with GL and you get automatic 2D acceleration over the 3D engine... sounds like a lot of work that can be saved.

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      • #4
        Originally posted by Veerappan View Post
        I think that's the point. Why would you want to create a new DDX for every new piece of hardware that uses KMS if you don't have to? Now, you can instead use the modesetting driver if you don't need to customize it, or you can use the modesetting driver as a base for any new DDX that supports a card with GL and you get automatic 2D acceleration over the 3D engine... sounds like a lot of work that can be saved.
        Hopfully they can kill off some of the existing onces then.

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        • #5
          while gracefully falling back to normal shadow frame-buffer acceleration if the platform doesn't have OpenGL
          Only OpenGL? Doesn't glamor have gles2 support?
          I thought this would be most valuable for arm gpus crippled by proprietary drivers.

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