Mesa News Archives
A Soft Implementation Of ARB_gpu_shader_fp64 Is Slowly Being Tackled For Mesa

Last year there was a Google Summer of Code student working on a library to implement double-precision operations (FP64) in pure GLSL 1.30 as a benefit to older GPUs not having native FP64 capabilities. While that work didn't materialize as a solution in 2017 for those wanting "soft" ARB_gpu_shader_fp64 for being able to potentially expose OpenGL 4.0 on more R600g era GPUs, the work is ongoing.

25 February 2017 - GL_ARB_gpu_shader_fp64 - 12 Comments
Fuzzing Mesa Drivers Begin To Uncover Bugs

Last December we wrote about work being done on fuzzing OpenGL shaders leading to wild differences with the work being done at the Imperial College London. While they were testing other drivers on different operating systems, they have now fired up tests of Mesa.

24 February 2017 - Intel Mesa Fuzzing - 13 Comments
OpenGL 4.0 Patches For Intel Ivy Bridge Revised

While yesterday's Mesa 17.0 release took Intel Haswell hardware from OpenGL 3.3 to OpenGL 4.5, this quarterly update didn't end up bring the older Ivy Bridge hardware past OpenGL 3.3. But consulting firm Igalia has continued working on their patches to bring Ivy Bridge hardware up to OpenGL 4.0.

14 February 2017 - FP64 IVB - 25 Comments
R600/RadeonSI GLSL/TGSI On-Disk Shader Cache Revised

Last week Timothy Arceri posted TGSI shader cache patches for Mesa that so far benefit the R600g and RadeonSI Gallium3D drivers but could also help out the other Gallium3D drivers too. The second version of those patches have now been published.

13 February 2017 - Mesa Shader Cache - 16 Comments
A Student Developer Wants To Write A Software Implementation Of Vulkan For Mesa

Vulkan is going on one year old and while the hardware driver support has continued to advance, we haven't yet seen a software implementation of Vulkan for running on a CPU. Of course, not for expecting any performance miracle or the like, but as a vendor-neutral platform for being able to test Vulkan's behavior, certain fallback scenarios, and other use-cases like Mesa's LLVMpipe/swrast/Softpipe software rasterizers.

11 February 2017 - GSoC / EVoC - 3 Comments
Mesa RFC Changes To Help Worms WMD, Tropico 5 & Crookz

In continuation of this morning's article about Valve Planning To Carry Mesa GL Thread Feature On SteamOS, Per-Game Features, it looks like the developers working for Valve on the open-source Linux graphics driver stack are looking to do more in the per-game profile space.

10 February 2017 - Thanks Valve - 11 Comments
LunarGLASS Shader Compiler Stack Is Still In Development

When writing this week about ILO Gallium3D being dropped from mainline Mesa, a Phoronix reader asked if LunarGLASS would be the next thing to be removed from Mesa... But LunarGLASS never made it to mainline Mesa, though it still is in development.

4 February 2017 - LunarGLASS - 8 Comments
More Mesa Work Coming Out Of Imagination Tech?

While many Phoronix readers cringe when hearing "Imagination Tech" or "PowerVR" due to past Linux driver issues and the lack of a full-featured open-source driver, one of their developers is now requesting commit rights to Mesa.

30 January 2017 - ImgTec - 25 Comments
Older Intel Graphics To Drop From OpenGL 2.1 To 1.4 On Linux

For older Intel i915~i945 graphics hardware, the Linux Mesa driver has exposed OpenGL 2.1 support while under Windows these ~12+ year old integrated graphics have only exposed OpenGL 1.4. Mesa now though might withdraw its OpenGL 2 support by default for older hardware on the i915 driver.

30 January 2017 - OpenGL 2 - 44 Comments

1290 Mesa news articles published on Phoronix.