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

The Intel Mesa Driver Gets Closer To OpenGL 3.0

Mesa

Published on 20 April 2011 02:51 PM EDT
Written by Michael Larabel in Mesa
9 Comments

The open-source Mesa / Gallium3D Linux drivers not only take heat for their slow performance (in many cases, dreadfully slow) compared to the proprietary drivers, their bugs causing issues like those with KWin, and their inability to run many games/applications, but also for their very belated support in enabling support for new OpenGL extensions and versions of the GL Shading Language.

The OpenGL 3.0 specification is nearly three years old now and has been supported by the proprietary drivers for that long, but not a single Mesa driver (or core Mesa) yet properly support this specification and the matching GLSL 1.30 requirement. Besides that, there's already OpenGL 3.1, 3.2, 3.3, 4.0, and 4.1 specifications too that Mesa drivers have yet to support. To some relief, the Mesa stack is inching closer to hitting the OpenGL 3.0 milestone in an open-source world.

The necessary requirements for OpenGL 3.0 are slowly being met one extension at a time. Earlier this month there was also finally the merging of floating-point textures and render buffers support, but those OGL3 requirements aren't enabled by default when building Mesa due to patent issues (a build-time flag must be set to enable the floating-point support in drivers).

Today there's a bit more progress in reaching OpenGL 3.0 in open-source. Namely, work on support for GL Shading Language 1.30 has been started. There's still a ways to go, but Intel is working on it. There's still switch statements, clip distances, and other features to implement in this version of GLSL.

The Intel (classic Mesa) driver now also has support for the GL_ARB_color_buffer_float, GL_ARB_texture_float, and GL_ATI_texture_float extensions. These OpenGL extensions were previously added to the Gallium3D drivers during the Mesa 7.11 development cycle, but now the support is being hooked in for the classic i965 driver.

Intel's Eric Anholt has also pushed some other render buffer work, among other fixes, in the past hour.

All of this work, plus lots of other work are making up Mesa 7.11 to be released in the near future.

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 Articles & Reviews
  1. Khronos Group Announces Vulkan, OpenCL 2.1, SPIR-V
  2. Samsung 850 EVO SSD Linux Benchmarks
  3. Kubuntu 15.04 Is Turning Out Quite Nice, Good Way To Try Out The Latest KDE
  4. 5-Way Linux Distribution Comparison On The Core i3 NUC
  5. OCZ ARC 100 Linux SSD Benchmarks
  6. Lenovo ThinkPad X1 Carbon Works Great As A Linux Ultrabook
Latest Linux News
  1. Mesa 10.5 Release Brings Skylake Support, NIR IR
  2. Intel Has More Graphics Driver Code Ready For Linux 4.1
  3. Fedora 22 Alpha Will Be Released Next Tuesday
  4. KDE Makes More Progress On HiDPI Support
  5. QuIC Continues Contributing To Open-Source MDP DRM/KMS Driver
  6. Reported Steam Linux Usage Battles To Stay Above 1.0%
  7. Benchmarks Of The $129 8-Core 64-bit ARM Development Board
  8. Wine 1.7.38 Supports Themed Scrollbars, Updated Mono Engine
  9. Siemens Commits New Motherboard Support To Coreboot
  10. Nuntius: Delivering Android Notifications To The GNOME Desktop
Most Viewed News This Week
  1. Confirmed: Vulkan Is The Next-Gen Graphics API
  2. Xfce 4.12 Released After Nearly Three Years Of Work
  3. Valve Launches SteamOS Sale, Confirms A Lot Of New Linux Games
  4. 8cc: A Small C11 Compiler
  5. Unreal Engine Made Free By Epic Games
  6. Canonical's Latest Demo Of Ubuntu Unity 8 Convergence In Action
  7. Mozilla Thunderbird Adoption Climbs, Thunderbird 38 In May
  8. VLC 2.2 "Weathermax" Brings Better VP9 & H.265 Support
%%CLICK_URL_UNESC%%