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Graphics: Intel, NVIDIA and Mesa

Submitted by Roy Schestowitz on Thursday 25th of April 2019 04:40:23 PM Filed under
Graphics/Benchmarks
  • Intel Aiming For Their Gallium3D Driver To Be Viable By Mesa 19.2, Default By EOY 2019

    Following questions from our forum goers, there's now an overview of the current state of Intel's new "Iris" Gallium3D driver and its road-map for the remainder of the year in being the company's next-gen OpenGL driver that should be in especially good shape by the time Icelake "Gen 11" hardware arrives.

    The Intel Gallium3D driver was merged back in February and will be found in next month's Mesa 19.1 release for the first time. With our testing of this "Iris" driver in Mesa 19.1 Git, the performance has become quite comparable recently to the existing i965 driver and in fairly good shape (and the performance is only getting better). With Mesa 19.1 it won't be used though unless going for the environment variable override with the mature Intel classic driver being the default. But by the end of 2019, this Gallium3D driver might be the default for supported hardware -- this driver supports Broadwell "Gen 8" graphics and newer while older generations of Intel graphics will continue to see support via the i965 classic driver.

  • NVIDIA Working On New GLX Extension To Help PRIME GPU Offloading

    NVIDIA has been working on a new GLX extension to help the PRIME GPU offloading situation where multiple GPU vendors are involved and thus different OpenGL driver implementations. In particular, the proposed GLX_EXT_server_vendor_select is designed to better fit in to address PRIME GPU offloading obstacles introduced by their work on the now common GLVND OpenGL Vendor Neutral Dispatch library.

  • Mesa 19.1 To Expose EXT_gpu_shader4 Support

    While it's not looking like Mesa 19.1 will end up exposing OpenGL 4.6 capabilities, it is picking up various other extensions including some prominent several year old extensions like EXT_texture_buffer_object and the decade old EXT_gpu_shader4.

    Presumably to satisfy some enterprise/workstation customer use-cases, prominent RadeonSI Gallium3D driver developer Marek Olšák of AMD merged a lengthy series of patches on Wednesday adding EXT_gpu_shader4 and EXT_texture_buffer_object. These new extensions will work with Mesa drivers supporting OpenGL 3.1 or higher.

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