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

AMD Evergreen Gallium3D Officially Does GLSL 1.30

AMD

Published on 20 April 2012 05:51 PM EDT
Written by Michael Larabel in AMD
11 Comments

The AMD Radeon HD 5000 "Evergreen" graphics cards, which at the hardware level is capable of OpenGL 4.2 / GLSL 4.20, is finally advertising GLSL 1.30 compliance by default with the Mesa Gallium3D "R600g" driver. GLSL 1.30 is the GL Shading Language revision introduced at the time of OpenGL 3.0.

Just hours after breaking the news that AMD will be discontinuing the Radeon HD 2000/3000/4000 series support in the coming months from their proprietary Catalyst driver, the open-source driver moved a bit further along. David Airlie made a Mesa commit today that enables GLSL 1.30 for AMD Evergreen (Radeon HD 5000 series) hardware by default.

This GLSL 1.30 enabling isn't because of some radical new commit to the Radeon Gallium3D driver, but rather is just to set the bit to enabled-by-default for Evergreen after ongoing work that has built up in recent weeks and months.

From David's commit, "I've done a piglit run on my SUMO machine and I see no regressions. Lots of things to fix (skip->fail), but hey maybe we can fix them if we can see them. I'll try and work my way across r600,700,cayman sometime if nobody else gets to them."

Up to this point GLSL 1.20 has been advertised unless setting the R600_GLSL130 environment variable to enable the OpenGL 3.0 version of the GL Shading Language. Aside from Evergreen, other Radeon generations capable of OpenGL 3.0 (the Radeon HD 2000/3000/4000 series as well as the Radeon HD 6000 series) remain at the 1.20 level. The premature RadeonSI Gallium3D driver for the Radeon HD 7000 series also has a ways before it's ready to handle GLSL 1.30+ compliance.

Outside of the Radeon world, the Intel Mesa DRI driver with Sandy Bridge and Ivy Bridge hardware indicates GL Shading Language 1.30 compliance (that's where Mesa lost its GLSL 1.30 virginity in late 2011). The Nouveau NVC0 "Fermi" hardware also advertises GLSL 1.30 support while the other generations remain at 1.20. Gallium3D Softpipe/LLVMpipe has also been chopping towards GL3/GLSL1.30.

Meanwhile the latest upstream GL Shading Language specification is version 4.20 with OpenGL 4.2 from August, though a new OpenGL/GLSL specification is likely coming this summer to put Mesa/Gallium3D further behind. It's only the proprietary AMD and NVIDIA graphics drivers under Linux that have been able to keep up with the latest specifications from the Khronos Group; this is just one of the reasons why there's now 70+ comments mostly criticizing AMD for so quickly dropping the Radeon HD 4000 series support and earlier from the Catalyst Linux blob.

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 Radeon R9 290: Gallium3D vs. Catalyst Drivers
  2. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
  3. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  4. Sumo's Omni Gets Reloaded
Latest Linux Articles
  1. Preview: OS X 10.10 Yosemite vs. Ubuntu Linux GPU Performance
  2. Radeon Graphics Yield Mixed Results With Linux 3.17 Kernel
  3. AMD's RadeonSI Driver Sped Up A Lot This Summer
  4. Intel's Latest Linux Graphics Code Competes Against OS X 10.9
Latest Linux News
  1. MenuetOS Updated With SMP Threads & Onscreen Keyboard
  2. Mesa Has A New Release Manager
  3. Enlightenment E19 Lands Its New Wayland Compositor Code
  4. Nouveau Turns Into A Mess In Latest Linux 3.17 + Mesa 10.3-dev Tests
  5. New GCC 5.0 Changes, Command-Line Options That Landed So Far
  6. SteamOS Update 133 Has Better Intel Performance, VA-API
  7. DRM Graphics Changes For Linux 3.18 Might End Up Being Smaller
  8. Ioquake3 Works On Finally Switching Over To SDL2
  9. Linux 3.17-rc2 Release Celebrates 23 Years Of Linux
  10. Leadwerks Launches On Steam For Linux
Latest Forum Discussions
  1. AMD Releases UVD Video Decode Support For R600 GPUs
  2. Users defect to Linux as OpenBSD removes Lynx from base system
  3. Chinese People Try To Patent Wine On ARM
  4. American Citizens running AMOK for food stamps
  5. "The World's Most Highly-Assured OS" Kernel Open-Sourced
  6. What Linux Distribution Should Be Benchmarked The Most?
  7. New generation ultra-thin gaming notebook-MSI GS702PE Stealth all around review
  8. Canonical Joined The Khronos Group To Help Mir/Wayland Drivers