1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Mesa 7.5 Release Candidate 1 Now Available

Mesa

Published on 08 May 2009 06:06 PM EDT
Written by Michael Larabel in Mesa
12 Comments

Mesa 7.5 was supposed to be released in early April, but just a few days before that release the plans had changed. David Airlie really wanted to get his Radeon driver rewrite merged sooner rather than later, and some other changes were pending that also held up the Mesa 7.5 release.

A change to the version numbering convention for the Mesa releases was proposed and accepted as well. Rather than having the odd numbered releases be the development versions (i.e. Mesa 7.1 and 7.3) and the even numbered releases being stable (i.e. Mesa 7.2 and Mesa 7.4), the first release in each release stream (such as Mesa 7.5.0) will be the "development" release while the next minor version (such as Mesa 7.5.1) will be the version that is more tested and contains additional bug fixes and should be stable. While a lot has been going on within the Mesa community, the first release candidate for Mesa 7.5.0 is now available.

The single biggest change in Mesa 7.5 is the mainlining of the Gallium3D driver architecture. Gallium3D is now developed within the mainline Mesa code-base, but still this much-improved driver interface is not yet ready for the public limelight. The Gallium3D drivers for Intel, NVIDIA, and ATI/AMD hardware are still lacking, but as the year moves on we should see more improvements in this area.

Gallium3D is designed to make driver development easier and more effective by being able to write a "simple" driver that interfaces with Gallium3D and then the generic state trackers target a unified API where any driver can then access the OpenGL support and other features. An OpenVG state tracker was recently released, there is an OpenCL state tracker due out this summer, and a shader-based video decoding interface also in the cooker.

Besides the integration of Gallium3D, Mesa 7.5 introduces support for the following OpenGL extensions: GL_ARB_framebuffer_object, GL_EXT_vertex_array_bgra, GL_NV_texture_env_combine4, and GL_EXT_texture_swizzle. These new OpenGL extensions are present in the software-based Mesa implementation, but if you want hardware acceleration they right now can only be found in the Intel driver.

Other new work in Mesa 7.5 include reworked two-sided stencil support via GL_ATI_separate_stencil and GL_EXT_stencil_two_side and OpenGL 2.0. Specific to those using SPARC-based hardware, there are various Assembly optimizations. Lastly, Mesa 7.5 has initial support for separate compilation units in GLSL compiler.

The Mesa 7.5 Release Candidate 1 announcement can be found on the Mesa development list. The source code to this newest release can be found in the Mesa3D.org beta directory.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  2. Intel Pentium G3258 On Linux
  3. SilverStone Precision PS10
  4. ASRock Z97 Extreme6
Latest Linux Articles
  1. Nouveau vs. Radeon vs. Intel Tests On Linux 3.16, Mesa 10.3-devel
  2. KVM Benchmarks On Ubuntu 14.10
  3. X.Org Server 1.16 Officially Released With Terrific Features
  4. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
Latest Linux News
  1. A New Video Has Us Real Excited About The New UT For Linux
  2. CoreOS Experiences Its First Stable Release
  3. GNOME 3.13.4 Continues Working On Wayland & More
  4. Wine 1.7.23 Has Initial Support For 64-bit Android Builds
  5. FreeBSD Developing A New Automounter, Other Features
  6. Guix 0.7 Can Now Install The GNU Operating System
  7. X.Org Foundation Still Works Towards Becoming An SPI Project
  8. Open-Source AMD Hawaii Support Should Now Be Working!
  9. KDE Developers Continue Working Toward Wayland Support
  10. Ubuntu 14.04.1 LTS Released
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  3. Radeon related kernel bug??
  4. how the US intellegentia operates:
  5. AMD Publishes Open-Source Linux HSA Kernel Driver
  6. Next-Gen OpenGL To Be Announced Next Month
  7. Open-Source Radeon Performance Boosted By Linux 3.16
  8. Remote gui not accessible in Phoronix Test Suite 5.2