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

A Screensaver Interface Comes To Wayland

Wayland

Published on 22 November 2011 10:29 AM EST
Written by Michael Larabel in Wayland
22 Comments

For those wishing to follow the development of Wayland Display Server, there's some new progress to report on. This time it's about supporting screensavers under Wayland.

Pekka Paalanen has proposed a screensaver interface for Wayland, which includes adding the interface to the protocol file, compositor stubs, and other changes.

Details and the patch for Wayland screensaver can be found in this mailing list message. Below is also a description of the work. Pardon for the terse posting due to needing to go meet-up with Egbert Eich of SUSE/RadeonHD, Martin Gräßlin of KDE/KWin, and other Linux stakeholders.
Add the screensaver interface to the desktop-shell protocol file. Also add stubs for it in the compositor, and make wscreensaver to bind to the screensaver interface. Wscreensaver gets a new option --demo to retain the current behaviour as a regular wayland client.

When a screensaver application starts, it should bind to the screensaver interface, enumerate all outputs, create a surface per output, and register those surfaces via screensaver::set_surface request. Then it continues with the usual animation loop, waiting for frame events. The compositor will decide, when the given screensaver surfaces are displayed. A screensaver application should respond to outputs coming and going away by creating and destroying surfaces.

The compositor is supposed to activate a screensaver by exec'ing it, and stop the screensaver by killing the client process. Only one client may be bound to the screensaver interface at a time. If there already is a client, the compositor could either kill it first, or not exec a new one.

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. Server-Side XCB Is Being Discussed For The X.Org Server
  2. Adreno A4xx Rendering With Freedreno Takes Shape
  3. Linux 3.19-rc1 Kernel Released Ahead Of Schedule
  4. Civilization: Beyond Earth Linux GPU/Driver Benchmarks
  5. X.Org Server 1.16.3 Released To Fix Security Issues
  6. Linux 3.19 Merge Window Closes Ahead Of Schedule
  7. MIPS R6 Architecture Now Supported By GCC
  8. LowRISC To Feature Tagged Memory & Minion Cores
  9. Intel Skylake Audio Support For Linux 3.19
  10. After 10+ Years, NetworkManager Reaches v1.0
Latest Forum Discussions
  1. Speeding up systemd networking service
  2. FPS capped on Linux (AMD fglrx drivers)
  3. Need some hand holding with upgrading xserver
  4. Are there an app using HSA ?
  5. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  6. XLennart: A Game For Systemd Haters With Nothing Better To Do
  7. Updated and Optimized Ubuntu Free Graphics Drivers
  8. Debian init discussion in Phoenix Wright format