On Sunday there was a new RFC patch-set by Tom Stellard of AMD with a new TGSI to LLVM conversion interface. The AMD R600 Gallium3D driver with its LLVM shader back-end was also updated, which is a prerequisite to OpenCL support.
On Sunday morning there were a number of video-related commits to Mesa for H.264 Gallium3D by AMD's Christian König.
Continuing in the coverage of the soon-to-be-out Mesa 8.0, here are some benchmarks of the CPU-based LLVMpipe software driver for Gallium3D.
While Mesa 8.0 has a lot to like about it from advertised OpenGL 3.0 support to performance improvements and new Gallium3D features, there are also several shortcomings of this major Mesa release for open-source graphics drivers.
While OpenGL 3.0 / GLSL 1.30 support in Mesa 8.0 has been what's talked about lately for this open-source graphics library to be released next month, there's a lot of other improvements too in Mesa 8.0 for those of you using the open-source graphics drivers under Linux.
Mesa, the heart of the open-source 3D graphics drivers for Linux, will see its 8.0 release in February with OpenGL 3.0 compliance.
It turns out that a developer is bringing Mesa's Gallium3D driver support to Haiku -- the operating system that seeks to re-implement BeOS as open-source -- per an outstanding monetary bounty.
The Mesa Softpipe driver is now getting close to handling OpenGL 3.0 support for the Mesa 8.0 release, which is expected to be branched next week.
For those not paying attention to the Mesa Git repository, Ian Romanick has landed more OpenGL 3.0 support work into the open-source code-base.
Here's one of the ways that Phoronix finds the performance regressions within the Mesa / Gallium3D drivers in a very easy way.
Vincent Lejeune has published an updated patch-set providing Uniform Buffer Object (UBO) support for OpenGL in Mesa.
The R300g and R600g Radeon Gallium3D performance is now up for certain workloads thanks to an important performance fix.
For those not keeping track, the Gallium3D state tracker for providing Microsoft Direct3D 10/11 support is still around.
Besides dropping the Intel 965 Gallium3D driver from mainline Mesa, the Gallium3D Cell driver has also been removed too.
For those wanting to live in a stable-and-tested world and forget about all the Mesa advancements that have been talked about on Phoronix in the past five months, Mesa 7.11.1 is now available.
Yesterday at the Ubuntu Developer Summit in Orlando, Canonical employees and others tried to hash out the general requirements for the X.Org stack to be found in Ubuntu 12.04 LTS.
A few patches have been published today for the VDPAU state tracker in Mesa's Gallium3D.
The death sentence to the ATI Radeon R300/R600 classic Mesa drivers has been carried out. It's all about the Gallium3D drivers now for upstream Mesa for R300 hardware and newer -- up through the latest Radeon HD 6000 series and Fusion.
Yesterday I wrote about the state of OpenGL 3.0 support in Mesa, but here's also some of the other missing items from the open-source graphics drivers.
Last month during XDC2011 Chicago it was publicly talked about how Intel wants OpenGL 3.0 support in Mesa and ideally before year's end. But how's that goal coming?
Last month at XDC2011 Chicago the long-standing goal of killing off Mesa IR was talked about by Intel. There's already been the GLSL-To-TGSI translator (and also competing with that is LunarGLASS to replace Mesa IR with LLVM IR), and now there's some new work to talk about in this area that works towards the common goal.
Marek Olšák, one of the most prolific independent contributors to Mesa / Gallium3D, has more exciting work at hand. Marek has published a patch to make the necessary changes to Gallium3D so that it can implement transform feedback support, a feature of OpenGL 3.0.
Ian Romanick of Intel, in the conquest to deliver OpenGL 3.0 support to the open-source Mesa stack by potentially year's end, has a new patch-set for examination.
Earlier this year Zack Rusin introduced ApiTrace as a new way to debug graphics drivers and other areas of the graphics stack. ApiTrace is an open-source utility that allows capturing DirectX/OpenGL API calls and to analyze them later on in a step-by-step manner. There's also other features like real-time editing of shaders and making other tweaks to how the calls are executed. ApiTrace even has a nice GUI too. Zack has now announced ApiTrace 2.0 and it makes this very useful graphics utility even much better.
Chad Versace of Intel has published a set of nineteen patches to the Mesa mailing list that implement HiZ and depth resolve support for the Intel Linux graphics driver. Unfortunately, it's not without some regressions.
There's patches now floating on the Mesa mailing list that provide support for OpenGL Uniform Buffer Objects (UBOs) in Mesa. This is noteworthy as it's another OpenGL 3.1+ feature that's been sadly missing from this open-source graphics stack.
Due to being busy with XDC2011 Chicago, there was some news missed over the weekend: there's the Mesa user-space side support for Nouveau video decoding using a hardware-based NVIDIA video decoder.
Emeric Grange has published a set of nine patches for the Gallium3D G3DVL video decoding stack. These patches largely originate from his work this summer on Gallium3D VP8 video decoding as part of Google's Summer of Code.
Last week I mentioned that Chrome/Chromium OS developers at Google implemented GLX_EXT_texture_from_pixmap support for software drivers. This is the GLX extension commonly needed by Compiz and other compositing window managers. This work has been merged into Git, so is there new "desktop bling" chewing up your CPU?
One week ago Ian Romanick called for old Mesa drivers to be removed from the mainline tree so that Mesa can move forward and be cleaned up to better the support for modern GPUs. These old Mesa drivers were DRI1-only, rarely ever received new work, and were largely for vintage graphics processors that most people haven't touched in years (e.g. the 3Dfx Voodoo days). With most developers approving this move, the old Mesa graphics drivers were removed. Ian Romanick has now moved further along with a slew of new patches to delete more code from Mesa.
725 Mesa news articles published on Phoronix.