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Mesa / Nouveau Gets Support For ARB_indirect_parameters

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  • Mesa / Nouveau Gets Support For ARB_indirect_parameters

    Phoronix: Mesa / Nouveau Gets Support For ARB_indirect_parameters

    Ilia Mirkin has landed some more notable feature code into Mesa this evening...

    http://www.phoronix.com/scan.php?pag...ect-Parameters

  • #2
    Always good to see progress, but Gallium is starting to fall a way behind Intel. It'd be nice to get some closure on the last bits of OpenGL 4.2, which would mean that a number of older GPUs are "feature complete".

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    • #3
      From: http://lists.freedesktop.org/archive...ry/104209.html
      Are there any known applications that use this feature?
      Supertuxkart will use it if you have a bunch of stuff which mesa doesn't have: https://github.com/supertuxkart/stk-...etry.cpp#L1165 The condition for this getting triggered, from what I can tell, is "isAZDOEnabled", which only is enabled if you have bindless textures (and multi draw obviously).
      I'd be curious about the performance gain.

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      • #4
        Originally posted by OneTimeShot View Post
        Always good to see progress, but Gallium is starting to fall a way behind Intel. It'd be nice to get some closure on the last bits of OpenGL 4.2, which would mean that a number of older GPUs are "feature complete".
        Well, he ist working on more "checklist stuff" as well: https://github.com/imirkin/mesa/tree/atomic3 has the enabling code for GL_ARB_shader_atomic_counters (GL 4.2) and GL_ARB_shader_storage_buffer_object (GL 4.3).

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        • #5
          And we are also working on GL_ARB_compute_shader and GL_ARB_shader_image_load_store. OpenGL 4.2 for NVC0 is on the way!

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          • #6
            Originally posted by hakzsam View Post
            And we are also working on GL_ARB_compute_shader and GL_ARB_shader_image_load_store. OpenGL 4.2 for NVC0 is on the way!
            I would really like to have GL_ARB_compute_shader
            ## VGA ##
            AMD: X1950XTX, HD3870, HD5870
            Intel: GMA45, HD3000 (Core i5 2500K)

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            • #7
              I'm working on it, and I did some good progress this week.

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              • #8
                Good work. And happy hacking!

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                • #9
                  Originally posted by hakzsam View Post
                  I'm working on it, and I did some good progress this week.
                  That's wonderful news!

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                  • #10
                    Getting proper muli_draw_indirect can really lead to excellent performance improvements, draw call overhead is very costly as has been the big thing the last years (hence AZDO and Vulkan, among other things).

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