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

Gallium3D Update, 2D Support Coming?

Mesa

Published on 04 September 2008 08:51 AM EDT
Written by Michael Larabel in Mesa
13 Comments

During FOSDEM this year, Keith Whitwell had provided a status update on Gallium3D and where they were at as of February. However, a lot has changed since then. Today at XDS 2008, Keith has provided a new status update of where they are at with this new driver infrastructure. Below are our notes from this talk as well as the following talk delivered by Tungsten's Jakob Bornecrantz.

Gallium3D:

- Recapping known features: New 3D driver environment, a lot simpler to work with than Mesa/DRI, multiple API support for free, taking away the nasty stuff within DRI drivers, easy to adopt for new environments, and strong interfaces.
- Core support for Gallium is essentially done for OpenGL and DirectX 9
- Additional APIs for Gallium 3D is on the way, but Tungsten Graphics doesn't want to comment on which ones at this time.
- GL support and sample drivers in Mesa gallium-0.1-branch.
- Intel 915 driver is complete but not fully optimized.
- Gallium 3D is now in a stabilization phase. Keith Whitwell: "We're done with the first iteration and now in a bug-fixing phase."
- Current work: building debug, tracing, and replay tools. Also working on new API front-ends and performance measurement and tuning.
- Fairly close to a point where Gallium will be merged to Mesa trunk. Before that, however, they intend to fix interface glitches, architecture oddities, and apply the lessons from the first couple of drivers.
- Tungsten has done a new driver for a newer class of GPU hardware, but no comment on what it is or when it will be released.
- A little bit of work left in some of the per-device driver components
- The winsys API will be hidden to the state tracker during the clean-up process of the Gallium code.
- It's time to think about putting together a Gallium specification and would help in the clean up process.
- Textures/Resources: unify surfaces and textures, remove the concept of a free-standing surface that owns its storage, possibly rename texture to resource to avoid confusion, textures own the storage and image data, 90% done.
- Future Possibility: Tungsten believes that 2D should be layered on 3D. They propose to define a 2D-friendly abstraction (such as pipe_context_2d) and provide a default implementation layered on the existing 3D-friendly interfaces.

i915 Gallium 3D:

- Gallium 3D hardware for Intel i915 IGP hardware.
- Current User Status: Passes 49 of 55 master tests for Clean. UT2004, Quake 3, and Google Earth should run.
- Code Status: ~10,000 lines of code for the i915 simple driver, ~6,200 lines of code for winsys, and ~114,000 lines of code for the state tracker.
- Current bugs: mipmap / render offsets, blend stuff, tiled textures and render targets. Linear tiling access is dead slow.
- Future: GEM, less bugs, proper tiling, zone rendering.

The main points from this talk is that Gallium 3D is approaching a point of stability, they have some new APIs in the work but won't comment on what they are (we believe it's GL ES, OpenVG, and others), work is underway on an official Gallium driver for an unknown card and unknown company, a specification for Gallium3D may be published soon, and lastly they are looking at possibly layering 2D support atop Gallium 3D in the 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 Linux Hardware Reviews
  1. Preview: AMD's FX-9590 Eight-Core At Up To 5.0GHz On Linux
  2. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  3. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  4. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
Latest Linux Articles
  1. How Intel Graphics On Linux Compare To Open-Source AMD/NVIDIA Drivers
  2. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  3. Testing For The Latest Linux Kernel Power Regression
  4. The Most Energy Efficient Radeon GPU For AMD Linux Gaming
Latest Linux News
  1. Nouveau X.Org Driver Released With DRI3+Present, Maxwell, GLAMOR
  2. Microsoft & AMD Release C++ AMP Compiler With Linux Support
  3. AMD, Wine & Valve Dominated August For Linux Users
  4. Linux 3.17-rc3 Kernel Released Back On Schedule
  5. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  6. Mesa 10.3 RC2 Arrives Via Its New Release Manager
  7. Ubuntu 14.10's Lack Of X.Org Server 1.16 Gets Blamed On AMD
  8. MSI Motherboard BIOS Updating Remains A Pain For Linux Users
  9. See How Your Linux System Performs Against The Latest Intel/AMD CPUs
  10. AMD Steppe Eagle Flys To Coreboot
Latest Forum Discussions
  1. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  2. The dangers of Linux kernel development
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. AMD Releases UVD Video Decode Support For R600 GPUs
  5. SSD seems slow
  6. Is laptop with Intel CPU and AMD dGPU worth buying considering especially AMD Enduro?
  7. Radeon HD5670 and Ubuntu 14.04
  8. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs