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Release Notes for X11R6.8.2 the X.Orgfoundation the Xfree86 Project, Inc
Release Notes for X11R6.8.2 The X.OrgFoundation The XFree86 Project, Inc. 9February 2005 Abstract These release notes contains information about features and their status in the X.Org Foundation X11R6.8.2 release. It is based on the XFree86 4.4RC2 RELNOTES docu- ment published by The XFree86™ Project, Inc. Thereare significant updates and dif- ferences in the X.Orgrelease as noted below. 1. Introduction to the X11R6.8.2 Release The release numbering is based on the original MIT X numbering system. X11refers to the ver- sion of the network protocol that the X Window system is based on: Version 11was first released in 1988 and has been stable for 15 years, with only upwardcompatible additions to the coreX protocol, a recordofstability envied in computing. Formal releases of X started with X version 9 from MIT;the first commercial X products werebased on X version 10. The MIT X Consortium and its successors, the X Consortium, the Open Group X Project Team, and the X.OrgGroup released versions X11R3 through X11R6.6, beforethe founding of the X.OrgFoundation. Therewill be futuremaintenance releases in the X11R6.8.x series. However,efforts arewell underway to split the X distribution into its modular components to allow for easier maintenance and independent updates. We expect a transitional period while both X11R6.8 releases arebeing fielded and the modular release completed and deployed while both will be available as different consumers of X technology have different constraints on deployment. Wehave not yet decided how the modular X releases will be numbered. We encourage you to submit bug fixes and enhancements to bugzilla.freedesktop.orgusing the xorgproduct, and discussions on this server take place on <[email protected]>. -
Porting a Window Manager from Xlib to XCB
Porting a Window Manager from Xlib to XCB Arnaud Fontaine (08090091) 16 May 2008 Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version pub- lished by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". Contents List of figures i List of listings ii Introduction 1 1 Backgrounds and Motivations 2 2 X Window System (X11) 6 2.1 Introduction . .6 2.2 History . .6 2.3 X Window Protocol . .7 2.3.1 Introduction . .7 2.3.2 Protocol overview . .8 2.3.3 Identifiers of resources . 10 2.3.4 Atoms . 10 2.3.5 Windows . 12 2.3.6 Pixmaps . 14 2.3.7 Events . 14 2.3.8 Keyboard and pointer . 15 2.3.9 Extensions . 17 2.4 X protocol client libraries . 18 2.4.1 Xlib . 18 2.4.1.1 Introduction . 18 2.4.1.2 Data types and functions . 18 2.4.1.3 Pros . 19 2.4.1.4 Cons . 19 2.4.1.5 Example . 20 2.4.2 XCB . 20 2.4.2.1 Introduction . 20 2.4.2.2 Data types and functions . 21 2.4.2.3 xcb-util library . 22 2.4.2.4 Pros . 22 2.4.2.5 Cons . 23 2.4.2.6 Example . 23 2.4.3 Xlib/XCB round-trip performance comparison . -
High Speed Visualization in the Jetos Aviation Operating System Using Hardware Acceleration*
High Speed Visualization in the JetOS Aviation Operating System Using Hardware Acceleration* Boris Barladian[0000-0002-2391-2067], Nikolay Deryabin[0000-0003-1248-6047], Alexey Voloboy[0000-0003-1252-8294], Vladimir Galaktionov[0000-0001-6460-7539], and Lev Shapiro[0000-0002-6350-851X] The Keldysh Institute of the Applied Mathematics of RAS, Moscow, Russia [email protected],{voloboy, vlgal, pls}@gin.keldysh.ru Abstract. The paper discusses details of the pilot display visualization that uses the hardware acceleration capabilities of the Vivante graphics processor in the JetOS aviation operating system. Previously the OpenGL Safety Critical library was implemented without hardware acceleration. This was done in such a way because software library is easier to certify in accordance with the avionics re- quirements. But usage of the software OpenGL does not provide acceptable visualization speed for modern Flight Display and 3D relief applications. So more complex visualization approach utilized the GPU acceleration capabilities was elaborated. Although the OpenGL library was implemented for a specific GPU and took into account its specificity, the described approach to adapt the MESA open source library can be used for other GPUs. An effective algorithm for multi-window visualization using the implemented library with hardware acceleration is present. The described approach allows you to achieve the visu- alization speed acceptable for the pilot display of the aircraft. Keywords: Pilot Display, Embedded Systems, Real-time Operating System, OpenGL Safety Critical, Multi-windowing. 1 Introduction In [1] requirements were formulated for a real-time operating system (RTOS) de- signed to work with integrated modular avionics. In particular, the RTOS should comply with the ARINC 653 standard [2]. -
Porting Tizen-IVI 3.0 to an ARM Based Soc Platform
Porting Tizen-IVI 3.0 to an ARM based SoC Platform Damian Hobson-Garcia Automotive Linux Summit July 1-2, 2014 Tokyo, Japan Tizen IVI support Until recently… Intel architecture (x86) system – Tizen IVI 2.0alpha, Tizen IVI 3.0 ARM architecture based system – Tizen IVI 2.0alpha (ivi-panda) Need to port Tizen IVI 3.0 to ARM ourselves Current State of Affairs Intel architecture (x86) system – Tizen IVI 2.0alpha, Tizen IVI 3.0 – Tizen Common NEW ARM architecture based system – Tizen IVI 2.0alpha (ivi-panda) – Tizen Common NEW Tizen IVI now based on Tizen Common – Lots of reuse Target Platform Renesas R-Car Gen2 series platform R-Car M2 – ARM Cortex A15 x2 R-Car H2 – ARM Cortex A15 x4, + ARM Cortex A7 x4 (option) 3D Graphics System – Imagination Technologies PowerVR series On board IP blocks – H/W video decode/encode – image processing Agenda Objective Methodology Porting Tasks – Weston/Wayland Integration – WebKit Integration – GStreamer Integration Objective Tizen IVI 3.0 on R-Car M2/H2 1. Standard Native Applications – Terminal program – Open GL/ES applications 2. Web – Browser and web applications 3. Multimedia – Video playback (1080p @ 30fps) Local Build Methodology Tizen IVI 3.0 milestone releases we used: – M2-Sep (released Oct 11, 2013) – M2-EOY (released Jan 15, 2014) – M2-March2014 (released April 11, 2014) Non-hardware dependant packages – Rebuild for ARM instruction set Hardware dependant packages – Replace/update with R-Car M2/H2 support Tizen Common/IVI Rebase Methodology Reuse Tizen Common ARM support for Tizen -
A Font Family Sampler
A Font Family Sampler Nelson H. F. Beebe Department of Mathematics University of Utah Salt Lake City, UT 84112-0090, USA 11 February 2021 Version 1.6 To assist in producing greater font face variation in university disser- tations and theses, this document illustrates font family selection with a LATEX document preamble command \usepackage{FAMILY} where FAMILY is given in the subsection titles below. The body font in this document is from the TEX Gyre Bonum family, selected by a \usepackage{tgbonum} command in the document preamble, but the samples illustrate scores other font families. Like Computer Modern, Latin Modern, and the commercial Lucida and MathTime families, the TEX Gyre families oer extensive collections of mathematical characters that are designed to resemble their companion text characters, making them good choices for scientic and mathemati- cal typesetting. The TEX Gyre families also contain many additional spe- cially designed single glyphs for accented letters needed by several Euro- pean languages, such as Ð, ð, Ą, ą, Ę, ę, Ł, ł, Ö, ö, Ő, ő, Ü, ü, Ű, ű, Ş, ş, T,˚ t,˚ Ţ, ţ, U,˚ and u.˚ Comparison of text fonts Some of the families illustrated in this section include distinct mathemat- ics faces, but for brevity, we show only prose. When a font family is not chosen, the LATEX and Plain TEX default is the traditional Computer Mod- ern family used to typeset the Art of Computer Programming books, and shown in the rst subsection. 1 A Font Family Sampler 2 NB: The LuxiMono font has rather large characters: it is used here in 15% reduced size via these preamble commands: \usepackage[T1]{fontenc} % only encoding available for LuxiMono \usepackage[scaled=0.85]{luximono} \usepackage{} % cmr Lorem ipsum dolor sit amet, aenean nulla tellus metus odio non maecenas, pariatur vitae congue laoreet semper, nulla adipiscing cursus neque dolor dui, faucibus aliquam quis. -
An Introduction to the X Window System Introduction to X's Anatomy
An Introduction to the X Window System Robert Lupton This is a limited and partisan introduction to ‘The X Window System’, which is widely but improperly known as X-windows, specifically to version 11 (‘X11’). The intention of the X-project has been to provide ‘tools not rules’, which allows their basic system to appear in a very large number of confusing guises. This document assumes that you are using the configuration that I set up at Peyton Hall † There are helpful manual entries under X and Xserver, as well as for individual utilities such as xterm. You may need to add /usr/princeton/X11/man to your MANPATH to read the X manpages. This is the first draft of this document, so I’d be very grateful for any comments or criticisms. Introduction to X’s Anatomy X consists of three parts: The server The part that knows about the hardware and how to draw lines and write characters. The Clients Such things as terminal emulators, dvi previewers, and clocks and The Window Manager A programme which handles negotiations between the different clients as they fight for screen space, colours, and sunlight. Another fundamental X-concept is that of resources, which is how X describes any- thing that a client might want to specify; common examples would be fonts, colours (both foreground and background), and position on the screen. Keys X can, and usually does, use a number of special keys. You are familiar with the way that <shift>a and <ctrl>a are different from a; in X this sensitivity extends to things like mouse buttons that you might not normally think of as case-sensitive. -
Oracle® Secure Global Desktop Platform Support and Release Notes for Release 4.7
Oracle® Secure Global Desktop Platform Support and Release Notes for Release 4.7 E26357-02 November 2012 Oracle® Secure Global Desktop: Platform Support and Release Notes for Release 4.7 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners. Intel and Intel Xeon are trademarks or registered trademarks of Intel Corporation. All SPARC trademarks are used under license and are trademarks or registered trademarks of SPARC International, Inc. AMD, Opteron, the AMD logo, and the AMD Opteron logo are trademarks or registered trademarks of Advanced Micro Devices. UNIX is a registered trademark of The Open Group. This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, delivered to U.S. -
Pysal Documentation Release 1.14.3
pysal Documentation Release 1.14.3 PySAL Developers Oct 04, 2019 Contents 1 User Guide 3 2 Developer Guide 73 3 Library Reference 97 Bibliography 109 i ii pysal Documentation, Release 1.14.3 Releases • Stable 1.14.3 (Released 2017-11-2) • Development PySAL is an open source library of spatial analysis functions written in Python intended to support the development of high level applications. PySAL is open source under the BSD License. Contents 1 pysal Documentation, Release 1.14.3 2 Contents CHAPTER 1 User Guide 1.1 Introduction Contents • Introduction – History – Scope – Research Papers and Presentations 1.1.1 History PySAL grew out of a collaborative effort between Luc Anselin’s group previously located at the University of Illinois, Champaign-Urbana, and Serge Rey who was at San Diego State University. It was born out of a recognition that the respective projects at the two institutions, PySpace (now GeoDaSpace) and STARS - Space Time Analysis of Regional Systems, could benefit from a shared analytical core, since this would limit code duplication and free up additional developer time to focus on enhancements of the respective applications. This recognition also came at a time when Python was starting to make major inroads in geographic information systems as represented by projects such as the Python Cartographic Library, Shapely and ESRI’s adoption of Python as a scripting language, among others. At the same time there was a dearth of Python modules for spatial statistics, spatial econometrics, location modeling and other areas of spatial analysis, and the role for PySAL was then expanded beyond its support of STARS and GeoDaSpace to provide a library of core spatial analytical functions that could support the next generation of spatial analysis applications. -
A Successor to the X Window System
Y: A Successor to the X Window System Mark Thomas <[email protected]> Project Supervisor: D. R¨uckert <[email protected]> Second Marker: E. Lupu <[email protected]> June 18, 2003 ii Abstract UNIX desktop environments are a mess. The proliferation of incompatible and inconsistent user interface toolkits is now the primary factor in the failure of enterprises to adopt UNIX as a desktop solution. This report documents the creation of a comprehensive, elegant framework for a complete windowing system, including a standardised graphical user interface toolkit. ‘Y’ addresses many of the problems associated with current systems, whilst keeping and improving on their best features. An initial implementation, which supports simple applications like a terminal emulator, a clock and a calculator, is provided. iii iv Acknowledgements Thanks to Daniel R¨uckert for supervising the project and for his help and advice regarding it. Thanks to David McBride for his assistance with setting up my project machine and providing me with an ATI Radeon for it. Thanks to Philip Willoughby for his knowledge of the POSIX standard and help with the GNU Autotools and some of the more obscure libc functions. Thanks to Andrew Suffield for his help with the GNU Autotools and Arch. Thanks to Nick Maynard and Karl O’Keeffe for discussions on window system and GUI design. Thanks to Tim Southerwood for discussions about possible features of Y. Thanks to Duncan White for discussions about the virtues of X. All company and product names are trademarks and/or registered trademarks of their respective owners. -
Qtile Documentation Release 0.15.1
Qtile Documentation Release 0.15.1 Aldo Cortesi Apr 14, 2020 Contents 1 Getting started 1 1.1 Installing Qtile..............................................1 1.2 Configuration...............................................5 2 Commands and scripting 25 2.1 Commands API............................................. 25 2.2 Scripting................................................. 28 2.3 qshell................................................... 28 2.4 iqshell.................................................. 30 2.5 qtile-top.................................................. 31 2.6 qtile-run................................................. 31 2.7 qtile-cmd................................................. 31 2.8 dqtile-cmd................................................ 34 3 Getting involved 37 3.1 Contributing............................................... 37 3.2 Hacking on Qtile............................................. 38 4 Miscellaneous 43 4.1 Reference................................................. 43 4.2 Frequently Asked Questions....................................... 107 4.3 License.................................................. 108 Index 109 i ii CHAPTER 1 Getting started 1.1 Installing Qtile 1.1.1 Distro Guides Below are the preferred installation methods for specific distros. If you are running something else, please see In- stalling From Source. Installing on Arch Linux Stable versions of Qtile are currently packaged for Arch Linux. To install this package, run: pacman -S qtile Please see the ArchWiki for more information on -
X Window System Network Performance
X Window System Network Performance Keith Packard Cambridge Research Laboratory, HP Labs, HP [email protected] James Gettys Cambridge Research Laboratory, HP Labs, HP [email protected] Abstract havior (or on a local machine, context switches between the application and the X server). Performance was an important issue in the develop- One of the authors used the network visualization tool ment of X from the initial protocol design and contin- when analyzing the design of HTTP/1.1 [NGBS 97]. ues to be important in modern application and extension The methodology and tools used in that analysis in- development. That X is network transparent allows us volved passive packet level monitoring of traffic which to analyze the behavior of X from a perspective seldom allowed precise real-world measurements and compar- possible in most systems. We passively monitor network isons. The work described in this paper combines this packet flow to measure X application and server perfor- passive packet capture methodology with additional X mance. The network simulation environment, the data protocol specific analysis and visualization. Our experi- capture tool and data analysis tools will be presented. ence with this combination of the general technique with Data from this analysis are used to show the performance X specific additions was very positive and we believe impact of the Render extension, the limitations of the provides a powerful tool that could be used in the analy- LBX extension and help identify specific application and sis of other widely used protocols. toolkit performance problems. We believe this analysis With measurement tools in hand, we set about char- technique can be usefully applied to other network pro- acterizing the performance of a significant selection of tocols. -
The Linux Graphics Stack Attributions
I - Hardware : Anatomy of a GPU II - Host : The Linux graphics stack Attributions Introduction to GPUs and to the Linux Graphics Stack Martin Peres CC By-SA 3.0 Nouveau developer Ph.D. student at LaBRI November 26, 2012 1 / 36 I - Hardware : Anatomy of a GPU II - Host : The Linux graphics stack Attributions General overview Outline 1 I - Hardware : Anatomy of a GPU General overview Driving screens Host < − > GPU communication 2 II - Host : The Linux graphics stack General overview DRM and libdrm Mesa X11 Wayland X11 vs Wayland 3 Attributions Attributions 2 / 36 I - Hardware : Anatomy of a GPU II - Host : The Linux graphics stack Attributions General overview General overview of a modern GPU's functions Display content on a screen Accelerate 2D operations Accelerate 3D operations Decode videos Accelerate scientific calculations 3 / 36 I - Hardware : Anatomy of a GPU II - Host : The Linux graphics stack Attributions General overview CPU Clock Front-side Graphics Generator bus card slot Chipset Memory Slots High-speed graphics bus (AGP or PCI Northbridge Memory Express) bus (memory controller hub) Internal Bus PCI Bus Onboard Southbridge graphics PCI (I/O controller controller Bus hub) IDE SATA USB Cables and Ethernet ports leading Audio Codec CMOS Memory off-board PCI Slots LPC Bus Super I/O Serial Port Parallel Port Flash ROM Floppy Disk Keyboard (BIOS) Mouse 4 / 36 I - Hardware : Anatomy of a GPU II - Host : The Linux graphics stack Attributions General overview Hardware architecture GPU: Where all the calculations are made VRAM: Stores