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 Support For OpenGL 3.1 Core Contexts

Intel

Published on 08 August 2012 07:06 PM EDT
Written by Michael Larabel in Intel
10 Comments

Ian Romanick has published a set of 14 new patches today as he prepares support within Mesa for creating OpenGL 3.1 core contexts, as open-source OpenGL 3.1 support finally inches further.

The 14 patches begin here on the Mesa development list. When creating an OpenGL core context, it comes down to removing functionality that's been deprecated from the Khronos OpenGL specification (for those wanting the old functionality, there's the OpenGL compatibility context).

Ian's work forthe OpenGL 3.1 core context support comes down to not advertising GL 1.2/1.3/1.4/1.5 extensions when in a core context, concealing other functionality when within a OpenGL core context, validation of the API and version, and cleaning up other bits of code. The remaining bits of enablement support from Ian comes down to allowing to create OpenGL 3.1 contexts for the Intel i965 driver and then advertising GLSL 1.40 support and ARB_texture_buffer_object when creating the core context. GLSL 1.40 is the GL Shading Language version for OpenGL 3.1.

One caveat in being able to support an OpenGL 3.1+ core context is that floating-point texture support must be built into Mesa. This can be done by building Mesa with the --enable-texture-float argument, but it's not set by default due to patent concerns around floating-point textures. See Super! Patented Mesa Floating-Point Is Merged!

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. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. Fedora 21 Alpha First Impressions: It's Great
  2. Counter-Strike: Global Offensive NVIDIA/AMD Benchmarks On Linux
  3. A Tour Of The New Phoronix Office
  4. 7-Way Linux Desktop Gaming Comparison On Ubuntu 14.10
Latest Linux News
  1. Oracle & Canonical Collaborate Over Their Competing Linux OSes On OpenStack
  2. Google Brings Coreboot To 64-bit ARM
  3. Debian Switches Back To GNOME As Its Default Desktop
  4. Fedora 21 Alpha Finally Sees The Light Of Day
  5. Qt 5.4 Will Support Applications Under A Wayland Compositor
  6. Valve Rolls Out A New Steam Storefront
  7. The Features Coming For Fedora 21
  8. Counter-Strike: Global Offensive Starts Rolling Out To Linux Users
  9. The Gestures Support Of GNOME 3.14
  10. Linux 3.17 Has Basic Support For The Xbox One Controller
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Uselessd: A Stripped Down Version Of Systemd
  3. Wasteland 2 Officially Launched Today, Including For Linux Gamers
  4. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  5. NVIDIA GTX 770/780 -works ?
  6. State of Nouveau now and in the near future?
  7. New stress testing utility for GPU's
  8. How to get Catalyst 14.4 working on Ubuntu 14.04