Thursday was a heck of a day for Mesa development activity with several new OpenGL extensions having been merged, the Xorg state tracker being nuked, and the new game developer-focused GLX extension landing. However, that was not all and in the last commits prior to branching Mesa 10.0 from Git master was the adding of DRI3 support.
Intel has been working to improve Linux gaming and as part of that earlier this year they published the GLX_MESA_query_renderer extension. The purpose of this GLX extension is to provide more system -- particularly graphics-related -- information than what's easily accessible right now. Just before the Mesa 10.0 branching, support for this useful extension was merged.
Just ahead of the Mesa 10.0 code branching, the Gallium3D Xorg state tracker has been eliminated.
With Mesa 10.0 that will be released in a few weeks time there is finally OpenGL 3.2 and 3.3 support. But with Mesa still being several years and revisions behind the latest Khronos Group specification, it's still a matter of implementing a lot of new GL4 functionality. Fortunately, there's many developers devoted to this task and on Tuesday there were patches for two new GL extensions.
Just ahead of the code branching of the Mesa 10.0 release this week, Marek Olšák has committed a number of improvements to the open-source RadeonSI Gallium3D graphics driver for providing open-source to the Radeon HD 7000 series GPUs and newer on Linux.
Following the X.Org Server 1.15 Release Candidate that introduces Direct Rendering Infrastructure 3 (DRI3 a.k.a. DRI3000), Keith Packard has proposed a set of patches that provide DRI3 support for Mesa drivers. The only patched hardware driver though for DRI3 is currently the Intel i965 DRI driver.
In addition to new improvements to Intel's Mesa driver, the Freedreno Gallium3D driver for Qualcomm Adreno/Snapdragon ARM graphics support has seen improvements too ahead of the Mesa 10.0 branching.
For those not comfortable in building Mesa and other open-source Linux graphics driver packages from source, the popular "Oibaf PPA" was updated this morning and it brings Mesa 10.0 Git to Ubuntu 13.10, 13.04, 12.10, and 12.04 LTS distributions. There's also other newer graphics packages there too.
Mesa 10.0 has many new 3D graphics features and we've known for a while the plan was to put out this next Mesa release in November. Now we have a better idea for when the Mesa 10.0 branching will happen and official release happen.
While there's many new features for Mesa 10.0, it's far from being feature complete and there's still many features that Linux desktop users would love to see added.
While Intel's Sandy Bridge hardware is now two years old and has been succeeded by Ivy Bridge and Haswell, the open-source developers working on Mesa are still struggling to address some GPU hang issues with the latest open-source Linux graphics driver for Sandy Bridge and Ivy Bridge.
Open-source developers are hoping to be able to introduce Hi10P support to NVIDIA's Video Decode and Presentation API for Unix (VDPAU) library.
Mesa 10.0 will hopefully be released by the end of November and with it will come plenty of new features and improvements to the open-source Linux graphics drivers.
While there's plenty of features coming to Mesa 10.0, one of the features not yet merged is support for an OpenGL extension to allow for better interoperability between VDPAU and OpenGL.
Mesa's Gallium3D can now handle OpenMAX! OpenMAX, short for Open Media Acceleration, is the Khronos standard for a C-language interface for abstraction of routines for audio, video, and image processing. With this initial implementation by AMD, the OpenMAX Gallium3D support allows hardware acceleration of MPEG-2 and H.264.
Last week OpenGL 3.3 support landed in Mesa and now to kick off the new week there's another important milestone for the open-source graphics project. The major milestone that just happened is the "Clover" Gallium3D state tracker for OpenCL/GPGPU support now can provide OpenCL ICD support.
Having delivered some new Ivy Bridge benchmarks of Mesa 10.0 Git this weekend, here's some complementary numbers looking at the Mesa 10.0-devel Git performance for a Haswell-based Iris Pro graphics core compared to the stable Mesa 9.2.2 release.
While it's just been two weeks since the Mesa 9.2.1 release, the second point release to Mesa 9.2 is now available with further bug-fixing.
It was just one week ago OpenGL 3.2 support was added to Mesa causing a major version bump so the next release will be known as Mesa 10.0. Last night, OpenGL 3.3 support with GLSL 3.30 was patched and now causing a possible version bump to mesa 11.0.
LunarG is a company focused upon 3D driver innovations that was also involved in the original Tungsten Graphics days, stewarding Mesa until its developers were acquired by VMware. For an update where LunarG is at today, its co-founder and executive director, Jens Owens, has provided an update for Phoronix readers.
Frequently brought up within the Phoronix Forums and elsewhere is the lack of a good graphical utility for configuring various elements of the open-source Linux graphics drivers.
APITrace has been around for a few years and has evolved into the best open-source application for OpenGL debugging and tracing/replaying of OpenGL events. APITrace also supports OpenGL ES and Direct3D/DirectDraw while new features continue to be added.
The latest Mesa Git benchmarks to share are of Intel's Iris Pro 5200 graphics found on the System76 Galago UltraPro.
The core Mesa library and Intel's open-source DRI Mesa driver is now in full compliance with the OpenGL 3.2 specification with GLSL 1.50. As a result, the Mesa version for the next release is being bumped from Mesa 9.3 to Mesa 10.0, as has been expected to be the case for some weeks now. Ahead of the Mesa 10.0 release planned for November, the Intel driver might also reach compliance with OpenGL 3.3 too.
With a number of new OpenGL extensions having been recently added to Mesa, here's a look at where the OpenGL 3.x/4.x support stands today in the open-source OpenGL implementation.
Yesterday Mesa received support for a new OpenGL extension and after that another useful OpenGL 4.2 extension was added to Mesa and implemented within the Intel OpenGL Linux driver. This latest extension can be used for a driver performance optimization.
With many fixes having landed, Mesa 9.2.1 was released on Friday along with Mesa 9.1.7 for providing improvements to the Linux OpenGL graphics drivers.
The necessary plumbing has happened inside Mesa for handling the OpenGL ARB_texture_query_levels extension and it's now implemented for the open-source Intel Linux graphics driver on Sandy Bridge hardware and newer.
For users of Haiku, the open-source BeOS-inspired platform, there's now better mainline support for the operating system with the open-source Mesa graphics drivers.
Multi-sample anti-aliasing (MSAA) support has landed for AMD's R600 GPU LLVM back-end for their open-source Linux graphics drivers.
879 Mesa news articles published on Phoronix.