One month ago to the day I was writing about OpenGL threading improvements for Mesa 20.1 and since then more "GLTHREAD" work has materialized and successfully landed for improving the Mesa OpenGL driver performance.

It's been another busy week for Mesa's RADV Vulkan driver with the Valve-backed ACO compiler back-end alternative to AMDGPU LLVM.

The recently covered NIR vectorization pass ported from AMD's ACO back-end for improving the open-source Intel Linux graphics performance has landed now in Mesa 20.1.

Well known open-source AMD OpenGL driver developer Marek Olšák has enabled more Linux games to run with Mesa's GLTHREAD functionality enabled for helping with the performance.

While many of you are users of Mesa Git for experiencing the bleeding-edge graphics drivers especially if you are a gamer wanting peak performance, for those on the Mesa stable series the Mesa 20.0.3 update has now shipped.

Back in December was a developer discussion over dropping or forking non-Gallium3D drivers. Since then the Intel "Iris" Gallium3D driver has successfully become the default OpenGL driver for Broadwell/Gen8 and newer while the non-Gallium3D drivers continue to just face bit rot. The discussion over dropping/forking non-Gallium3D Mesa drivers has been reignited.

In hopefully meaning less regressions moving forward for DXVK with the latest open-source Vulkan drivers, the Mesa continuous integration (CI) infrastructure saw support added for playing DirectX (DXGI) traces with DXVK/Wine.

Well known open-source AMD RadeonSI Gallium3D driver developer Marek Olšák has been focusing recently on improvements to glthread for OpenGL threading that is generally able to offer better performance.

This should come as little surprise to regular Phoronix readers and those that follow the Mesa release cadence, but Mesa 20.1 as the next quarterly feature release now has a release calendar putting its debut towards the end of May.

For the past year Mesa has offered a "soft" implementation of FP64 capabilities for GPUs lacking FP64 hardware capabilities in order to support ARB_gpu_shader_fp64 as required by OpenGL 4.0. Optimizations were merged today to significantly enhance the "soft FP64" capabilities of Mesa.

Mesa 20.0.2 is out this evening as the latest stable bug-fix update for the Mesa Q1'2020 driver series.

The Turnip Mesa Vulkan driver for Qualcomm Adreno graphics processors can now handle transform feedback.

Prolific ACO shader compiler back-end developer Timur Kristóf has managed to land his latest improvements in Mesa 20.1-devel for this alternative to the AMDGPU LLVM back-end supported so far by the RADV Vulkan driver.

Mesa 19.3.5 was released today for ending out the Mesa 19.3 series as the Q4'2019 OpenGL/Vulkan driver release stream.

Mesa's OpenGL threading "glthread" support has been around for a while but come Mesa 20.1 next quarter will be further improvements to this performance feature.

Following the release of Mesa 20.0 in mid-February, the first point release to this quarter's Mesa 3D feature series is now available.

The Panfrost open-source, reverse-engineered Arm Mali Gallium3D driver is seeing work on a new driver-specific IR and compiler back-end.

The LLVMpipe CPU-based software rasterizer OpenGL driver within Mesa's Gallium3D now has working tessellation shader support (ARB_tessellation_shader) and can even run Unigine Heaven demo properly, just don't expect good performance.

Mesa's Panfrost Gallium3D driver for providing open-source support for Arm Mali Midgard and Bifrost GPUs now has experimental OpenGL ES 3.0 support.

To date the Mesa "RADV" Radeon Vulkan driver hasn't supported AMD's GPUOpen Radeon GPU Profiler but that is changing.

New to Mesa 20.1-devel is a new option for the Radeon Vulkan "RADV" driver to enable zeroing out video memory allocations.

Mesa 20.0 is now released as the first quarter 2020 update to the Mesa 3D open-source graphics driver stack.

It's been a while since last having any news to report on Mesa's Lima Gallium3D driver for old Mali 400/450 series hardware, but an important optimization was merged today.

New stable and development releases of Mesa3D are available for providing the latest open-source Linux graphics driver experience for OpenGL and Vulkan.

While many in the Linux community still cringe when hearing Imagination Tech's PowerVR given the troubling state of their graphics drivers over the years, in 2020 it looks like they are pursuing a new open-source graphics driver project.

While the open-source Intel "ANV" and Radeon "RADV" Vulkan drivers get talked about a lot, one of the lesser known Vulkan drivers within Mesa is Turnip but it's been gaining steam recently.

Making use of Link-Time Optimizations (LTO) and Profile Guided Optimizations (PGO) is currently being talked about by Mesa developers for their release builds in potentially squeezing out better performance.

While not yet suitable for gamers or serious end usage, the Radeon "R600" Gallium3D driver that supports the Radeon HD 2000 through HD 6000 (pre-GCN) graphics cards now has an experimental NIR back-end.

Red Hat's Karol Herbst who has spent years now working on Nouveau SPIR-V support and other GPU open-source compute efforts around Mesa has provided a trivial implementation of clCreateCommandQueueWithProperties() that is now enough to begin running the OpenCL 2.0 conformance test suite on the Gallium3D "Clover" state tracker.

Zink, the project going on for almost two years for implementing OpenGL over Vulkan, might soon be exposing OpenGL 3.0 and OpenGL ES 2.0 within mainline Mesa.