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Graphics: Mesa, Gallium3D, and Zink

Submitted by Roy Schestowitz on Wednesday 18th of August 2021 12:51:11 AM Filed under
Graphics/Benchmarks
  • Mesa 21.3 LLVMpipe Enables OpenGL 4.5 Compatibility Profile Support - Phoronix

    The LLVMpipe driver providing a generic OpenGL implementation that's CPU-accelerated for Mesa - and more performant than alternatives thanks to LLVM - can now support OpenGL 4.5 compatibility profile contexts.

    LLVMpipe has already supported OpenGL 4.6 with core contexts when making use of NIR and all the other improvements in recent time to this Gallium3D driver. Now for any software still relying upon OpenGL compatibility contexts, OpenGL 4.5 compatibility profile support is in place for this software GL driver.

  • VA-API AV1 Decode Lands In Mesa 21.3 Gallium3D - Phoronix

    The change led by AMD engineers for adding AV1 VA-API acceleration support to the Gallium3D "VA" state tracker front-end has landed in Mesa 21.3.

    This is the change we talked about last week when the patches were still pending but have now made it to mainline. The Gallium3D VA code now supports the royalty-free AV1 video codec with 10-bit decode capabilities. Of course, it's contingent upon the Gallium3D driver having AV1 capabilities. On the AMD front, AV1 decode is available with the latest-generation Radeon RX 6000 series "RDNA2" GPUs.

  • Zink Suballocator Lands In Mesa - "Over 1000%" Performance Increase For Some Games - Phoronix

    Mesa's Zink Gallium3D code for implementing OpenGL-over-Vulkan can now run a heck of a lot faster with the newest Mesa 21.3 code.

    Back in June was when the news of Zink seeing "massively improved performance" thanks to a suballocator for Zink. Zink's suballocator was based on Gallium3D auxiliary / pipebuffer code started by RadeonSI and led to significant performance improvements. It's that suballocator code that as of today has been merged into Mesa 21.3-devel.

»

More on Zink

Submitted by Roy Schestowitz on Wednesday 18th of August 2021 04:17:51 AM.
  • Zink Now Supports OpenGL Compatibility Contexts - Allowing More Games/Apps To Work - Phoronix

    In addition to Tuesday seeing the Zink sub-allocator merged for sharply improving the performance of this OpenGL-on-Vulkan implementation within Mesa, the Zink Gallium3D code subsequently merged support for OpenGL compatibility contexts.

    While Zink supports OpenGL 4.6 for a while now with the core GL contexts, it hasn't supported compatibility contexts. Creating an OpenGL compatibility context with supported drivers allows making use of legacy/deprecated GL functionality that is otherwise not available with the core context.

Zink Vulkan driver Suballocator lands in Mesa

Submitted by Roy Schestowitz on Wednesday 18th of August 2021 11:19:33 AM.
  • Zink Vulkan driver Suballocator lands in Mesa, certain games get 'over 1000%' more FPS

    Zink, the OpenGL implementation on top of Vulkan continues to be an exciting development for Linux open source graphics drivers, with some new code landing in Mesa to improve its performance.

    The code in question relates to a Suballocator, something that developer Mike Blumenkrantz who has been contracted by Valve blogged about that we covered back in June. Even back then, Blumenkrantz showed how Tomb Raider running on Zink with this new code went from 9FPS to 91FPS (those are the last specific numbers given).

Mike Blumenkrantz: Submerged

Submitted by Roy Schestowitz on Wednesday 18th of August 2021 08:17:42 PM.
  • Mike Blumenkrantz: Submerged

    Just a quick update today while I dip my toes back into the blogosphere to remind myself that it’s not so scary.

    Remember when I blogged about how nice it would be to have a suballocator all those months ago?

    Now it’s landed, and it’s nice indeed to have a suballocator.

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