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

Introducing The Cairo Gallium3D State Tracker

X.Org

Published on 19 June 2010 08:29 AM EDT
Written by Michael Larabel in X.Org
8 Comments

In past days we have reported on the work being done at the moment for improving the ATI R300 GLSL compiler and kernel mode-setting support for old 3Dlabs GPUs by students participating in the X.Org project with Google's Summer of Code. Igor Trindade Oliveira, another GSoC student developer, has blogged about the work he is doing this summer on creating a Gallium3D state tracker for Cairo.

Like the other state trackers with accelerating OpenGL, OpenGL ES, OpenVG, OpenCL, and other APIs on the GPU hardware in a rather neutral way using the Gallium3D driver architecture, Igor aims to do this for Cairo too. Nearly all Linux users should be familiar with Cairo, but for the non-technical users it's a 2D vector graphics API that's found uses within GTK+, by Mozilla within the Gecko web layout engine, Mono and the Moonlight projects, WebKit also uses Cairo, and many other projects use it in some form as well.

Besides directly supporting X, Cairo supports multiple back-ends, including OpenGL and OpenVG, so it can be accelerated indirectly atop the hardware already using the other state trackers, but the Cairo state tracker would accelerate it without any middle layer.

Igor Trindade Oliveira is hoping this state tracker for Cairo will make things go significantly faster, particularly with the more advanced operations. Igor's current code-base of this Cairo-Gallium3D work can be found at FreeDesktop.org. So far Igor's state tracker is a few hundred lines of code that has initial implementations for Cairo paths and painting, but obviously the work has just begun.

Right now it also looks like he's just focusing on making it work with the Softpipe driver, but not any of the hardware drivers yet or even the interesting LLVMpipe.

While his first blog post is a bit lax on details, it can be found here.

In other news related to the X.Org GSoC happenings this summer, Tom Stellard who has been working on the R300 GLSL improvements has just pushed a new branch of his code that enables hardware loops and branching for ATI R500 (Radeon X1000) graphics cards. Information regarding this branch can be found on mesa-dev.

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. Intel Xeon E5-1680 v3 & E5-2687W v3 Compared To The Core i7 5960X On Linux
  2. Intel 120GB 530 Series SSD Linux Performance
  3. Btrfs/EXT4/XFS/F2FS RAID 0/1/5/6/10 Linux Benchmarks On Four SSDs
  4. AMD's Windows Catalyst Driver Remains Largely Faster Than Linux Drivers
Latest Linux Articles
  1. NVIDIA vs. Nouveau Drivers With Linux 3.18 + Mesa 10.4-devel
  2. Is The Open-Source NVIDIA Driver Fast Enough For Steam On Linux Gaming?
  3. Linux 3.18 File-System Performance Minimally Changed But Possible Regressions
  4. AMD Radeon Gallium3D Is Catching Up & Sometimes Beating Catalyst On Linux
Latest Linux News
  1. Linux 3.18-rc6 Released, A Worrisome Regression Remains
  2. HandBrake 0.10 Brings H.265 & VP8 Encoders
  3. Gngr: A New Web Browser Focused On Privacy
  4. Linux 3.18 Kernel: Not Much Change With Intel Haswell Performance
  5. More File-System Tests Of The Linux 3.18 Kernel
  6. Using NVIDIA's NVENC On Linux With FFmpeg
  7. There's Talk Again About An "Open To The Core" Ubuntu Laptop
  8. PowerVR SGX Driver Code Gets Leaked
  9. V2 Of KDBUS Published For Linux Kernel Review
  10. VirtualBox 4.3.20 Arrives, Still No Sign Of VirtualBox 4.4
Latest Forum Discussions
  1. PulseAudio 6.0 Is Coming & Other Linux Audio Plans For The Future
  2. Debian Developer Resigns From The Systemd Maintainership Team
  3. Roadmap to Catalyst 14.10 ?
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. Cant get working Kaveri APU - A10-7850k
  6. Script for Fan Speed Control
  7. Debian Init System Coupling Vote Results
  8. The Slides Announcing The New "AMDGPU" Kernel Driver