Freedesktop.org

freedesktop.org (fd.o), formerly X Desktop Group (XDG), is a project to work on interoperability and shared base technology for free-software desktop environments for the X Window System (X11) and Wayland on Linux and other Unix-like operating systems. It was founded by Havoc Pennington, a GNOME developer working for Red Hat in March 2000. Some of the project's servers are hosted by Portland State University, sponsored by Hewlett-Packard, Intel, and Google. Widely used open-source X-based desktop projects, such as GNOME, KDE's Plasma Desktop, and Xfce, are collaborating with the freedesktop.org project. In 2006, the project released Portland 1.0 (xdg-utils), a set of common interfaces for desktop environments. However, freedesktop.org is a "collaboration zone" for standards and specifications where users can freely discuss ideas, and not a formal standards organization. freedesktop.org joined the X.Org Foundation in 2019. freedesktop.org provides hosting for a number of relevant projects. These include: Software related to windowing systems and graphics in general Cairo, a vector graphics library with cross-device output support Direct Rendering Infrastructure (DRI), Linux API to access the graphics hardware, used by X11, Wayland compositors, Mesa 3D, etc. Glamor, 2D graphics common driver for X server, it supports a variety of graphics chipsets which have supports for OpenGL/EGL/GBM APIs Mesa 3D, an implementation of several graphics API such as Vulkan and OpenGL Pixman, is a low-level software library for pixel manipulation, providing features such as image compositing and trapezoid rasterization. Important users of pixman are the cairo graphics library and the X.Org Server Poppler, a PDF rendering library Video Acceleration API Wayland, protocol to replace X11; features: no tearing, lag, redrawing or flicker X.Org Server: the official reference implementation of the X11 protocol XCB, an Xlib replacement. Xephyr is a display server D-Bus, a message bus akin to DCOP (KDE 3) and Bonobo (GNOME 2) Elektra, a library for reading and writing configuration FreeType, a text rendering library.

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Wayland (protocol)

Wayland is a communication protocol that specifies the communication between a display server and its clients, as well as a C library implementation of that protocol. A display server using the Wayland protocol is called a Wayland compositor, because it additionally performs the task of a compositing window manager. Wayland is developed by a group of volunteers initially led by Kristian Høgsberg as a free and open-source community-driven project with the aim of replacing the X Window System with a modern, secure, and simpler windowing system for Linux and other Unix-like operating systems.

X.Org Server

X.Org Server is the free and open-source implementation of the X Window System display server stewarded by the X.Org Foundation. Implementations of the client-side X Window System protocol exist in the form of X11 libraries, which serve as helpful APIs for communicating with the X server. Two such major X libraries exist for X11. The first of these libraries was Xlib, the original C language X11 API, but another C language X library, XCB, was created later in 2001.

Mesa (computer graphics)

Mesa, also called Mesa3D and The Mesa 3D Graphics Library, is an open source implementation of OpenGL, Vulkan, and other graphics API specifications. Mesa translates these specifications to vendor-specific graphics hardware drivers. Its most important users are two graphics drivers mostly developed and funded by Intel and AMD for their respective hardware (AMD promotes their Mesa drivers Radeon and RadeonSI over the deprecated AMD Catalyst, and Intel has only supported the Mesa driver). Proprietary graphics drivers (e.

Micro and Nanosystems Modeling EE-536: Physical models for micro and nanosystems

Explores physical models for micro and nanosystems, including fluid flow and heat transfer.

Spectral Decomposition MATH-111(c): Linear Algebra

Explores spectral and singular value decompositions of matrices.

Fourier Transformation and Spin Fields

Explores Fourier transformation and spin fields, covering factorization, LSZ, and properties of spin fields.

Graasp Desktop: Supporting Digital Education in Underconnected Schools in Africa

Denis Gillet, Juan Carlos Farah, Kim Lan Phan Hoang, Hagop Taminian

Over the past three years, the Go-Lab Goes Africa (GO-GA) initiative has focused on promoting and implementing digital education in Africa. GO-GA is a Horizon 2020 innovation action supported by the European Commission. One of the outcomes of this initiati ...

2021

Exposed Column Base Connections for Minimizing Earthquake-induced Residual Deformations in Steel Moment-Resisting Framess

Dimitrios Lignos, Albano António De Abreu E Presa De Castro E Sousa, Hiroyuki Inamasu

This paper proposes a new exposed column base (XCB) design concept for steel moment-resisting frames (MRFs) that promotes anchor rod yielding rather than plastic hinging at the bottom of the first story columns. A mechanics-based numerical model is first d ...

2019

Multi Agent Systems (MAS) have recently attracted a lot of interest because of their ability to model many real life scenarios where information and control are distributed among a set of different agents. Practical applications include planning, schedulin ...

EPFL2007