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

Wayland Can Now Use Gallium3D Software Rendering

Wayland

Published on 25 April 2011 03:10 PM EDT
Written by Michael Larabel in Wayland
10 Comments

Besides the obvious requirements and demands of needing to design a display server that can fully replace the needs of the long-standing X Server, and making all the tool-kits and major software support running natively on Wayland, another inhibitor to Wayland's adoption has been its graphics driver requirements. In particular, Wayland requires kernel mode-setting, EGL (in place of a DRI2 requirement), in-kernel memory management (GEM), and 3D acceleration.

The major open-source drivers (Intel, Radeon, and Nouveau) in their mainline code-bases now support running Wayland directly, but the proprietary AMD Catalyst and NVIDIA drivers still lack the necessary support and they will likely continue without Wayland support for the near future. There's also many obscure graphics hardware and drivers out there that aren't yet capable of running Wayland: VIA, XGI, S3, Matrox, PowerVR, etc.

For the obscure hardware out there unlikely to receive Wayland support or in cases where the user's waiting on hardware enablement (e.g. new graphics processors not yet supported by the open-source drivers), Wayland is now capable of using the software rendering found in Mesa's Gallium3D architecture.

Benjamin Franzke has written to the Wayland mailing list today about Software Rendering. Support to Mesa and Wayland have been added for client-side software rendering on Gallium3D's Softpipe driver.

Even if you have hardware acceleration, you can opt to use software acceleration by setting the EGL_SOFTWARE, EGL_DRIVER, and EGL_PLATFORM environmental variables for the Wayland client. This is also capable of running the X11 compositor for Wayland with software rendering.

Wayland has also moved the buffer management into EGL so that DRI2 is no longer a hard requirement for the driver. As part of this work to bring Wayland up on software rendering, Ben added a Wayland software shared memory winsys to Gallium3D and cleaned up the EGL state tracker for Wayland.

Ben is also the developer that's been exploring OpenWF support -- the low-level Khronos API for composited windowing systems -- in Wayland as an alternative to (or in replace of) using Linux KMS APIs directly.

Right now this is using the Gallium3D Softpipe driver, but without too many problems it should be possible to get it running with the LLVMpipe software driver. LLVMpipe runs significantly faster than Softpipe as it takes advantage of the Low-Level Virtual Machine (LLVM) and can take full advantage of modern processor features.

Along the same lines, last year it became possible to run Wayland off a Linux frame-buffer for those without kernel mode-setting support.

So in theory if you have a very fast processor, lots of system memory, and some obscure graphics processor or are dedicated to unsupported proprietary drivers, it's possible to run Wayland using software rendering.

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. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  2. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  3. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
  4. 6-Way Winter 2014 Linux Distribution Comparison
Latest Linux News
  1. Details On Using OpenACC & GPUs With GCC
  2. Ubuntu 15.04 Alpha 1 For Its Various Flavors
  3. Git 2.2.1 Released To Fix Critical Security Issue
  4. WTFTW: A Tiling Window Manager Written In Rust
  5. Jolla's Sailfish OS Update 10 Is Now Available
  6. HP To Launch Linux++ Operating System Next Year
  7. Civilization: Beyond Earth Launches For Linux
  8. NIR Has Been Revised As A New IR For Mesa
  9. New 64-bit Linux Kernel Vulnerabilities Disclosed This Week
  10. PostgreSQL 9.4 Brings JSONB & Many Other New Features
Latest Forum Discussions
  1. XLennart: A Game For Systemd Haters With Nothing Better To Do
  2. Debian init discussion in Phoenix Wright format
  3. Bench specific mount point
  4. Tool for measuring FPS in games
  5. Need some hand holding with upgrading xserver
  6. Ubuntu Developers Still Thinking What To Do About Adobe Flash Support
  7. Microsoft buying Mojang
  8. Updated and Optimized Ubuntu Free Graphics Drivers