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Programming Leftovers

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Development
  • Highlights From The 2019 Pandas Hack

    Taking place simultaneously in Austin, Bentonville, and Dallas from August 16–18, the Pandas Hack was a weekend hackathon focused on providing updates and bug fixes to the pandas data science library.

  • Updated high-DPI support for Qt 5.14
    Hi all,
    
    We’ve recently merged several patches which improves Qt’s high-DPI support. The changes include:
    
    * Support for fractional device pixel ratios (e.g. Windows 150%)
    * Support per-screen DPI in more places like QStyle
    * Cleanup of configuration API and options.
    
    These fixes applies mostly to the AA_EnableHighDpiScaling type of high-DPI support where 
    the device independent coordinate system is set up by QtGui. Relevant platforms include Windows,
    X11, and Android. The new code and and config options are cross-platform though; it should be
    possible to develop and test on any platform (as long as you are not working on platform plugins).
    
    
  • Qt 5.14 Is Bringing Significantly Better HiDPI Support

    Besides KDE seeing its own HiDPI improvements like fractional scaling on Wayland recently landing, the Qt5 tool-kit is seeing more HiDPI improvements on its end too.

    With Qt 5.14 that is slated to be released before year's end there will be better HiDPI support for dealing with today's modern high pixel density displays. Some of the Qt 5.14 HiDPI improvements include support for fractional device pixel ratios, supporting per-screen DPIs more throughout the tool-kit, configuration API clean-ups, platform plug-in additions, an API for setting the rounding policy for the scaling factor, and expanding the supported environment variables for testing the functionality.

  • Reactive Foundation tackles next phase of software architecture

    “With the rise of cloud-native computing and modern application development practices, reactive programming addresses challenges with message streams and will be critical to adoption,” said Michael Dolan, VP of strategic programs at the Linux Foundation. “With the Reactive Foundation, the industry now has a neutral home for supporting the open source projects enabling reactive programming.”

    [...]

    RSocket builds on reactive streams to prevent outages and is designed to support microservices-based and cloud-native applications as a high-performance replacement of traditional HTTP. It enables long-lived streams on different transport connections, which is useful for mobile to server communication. The foundation will also seeks to expand the open-source community around RSocket and reactive programming.

    “After more than a decade of innovations, the reactive ecosystem is making it into mainstream adoption with Project Reactor, Spring Boot and the Spring Framework accelerating its adoption,” said Stephane Maldini, project reactor lLead at Pivotal. “Together, we can build hyper efficient, scalable distributed systems by rethinking the way we design them and by using the right protocol to coordinate them.”

More in Tux Machines

Try GNOME 3.38 Orbis

Congratulations to GNOME developers! We can already try version 3.38 "Orbis" right here right now. Simply grab Fedora or openSUSE at the latest development version as you can find Orbis in them. I share with you my experience in trying out Orbis below. Along with this short review I also include the links, video, and a lot of screenshots like usual. Enjoy! Read more

Making Arch GNU/Linux 2020 Works with GLIM Multiboot USB

Continuing my business shipping computer installation media in Indonesia, recently I shipped Arch 2020 to South Sumatra the southern province in Sumatra Island along with other GNU/Linux operating systems. Apparently, nowadays Arch is a little bit different to earlier versions back in 2019 in which the ISO file contents changed by merely a character. Default GLIM configuration won't work anymore. Thus we need a change in the configurations so new Arch will work with GLIM once again. This tutorial brings you my custom change so Arch boots in multiboot way straight from the flash drive. Read more

Programming and Hardware Hacking

  • Raspberry Pi inspired MaaxBoard Mini SBC features NXP i.MX 8M Mini SoC

    Last year, Embest – an Avnet company – introduced MaaXBoard NXP i.MX 8M SBC mostly compatible with Raspberry Pi form factor and running Android 9.0 or Yocto Linux.

  • Code a GUI live with Digital Making at Home
  • RenderDoc 1.10 Released For This Leading Cross-Platform Graphics Debugger

    RenderDoc 1.10 was released on Friday for this leading open-source program supporting frame-capture-based debugging on Vulkan, OpenGL / GLES, and Direct3D across Windows, Linux, and Android along with platforms like Stadia and the Nintendo Switch. RenderDoc 1.10 brings various optimizations and speed improvements, which is always nice to see. RenderDoc should now have lower idle overhead, greater performance when capturing a frame on Vulkan in certain instances, faster cold startup time, improved replay time when switching events for Vulkan captures, and other optimizations.

  • Sublime Text – Best text editor for Linux [Ed: Why promote dodgy proprietary software when better editors exist that are Free/libre?]

    In this guide, you will learn how to install Sublime Text editor on Linux distributions like Ubuntu, Mint, Fedora, Manjaro, etc. Sublime Text is a cross-platform, light-weight code editor. It natively supports many programming and markup languages. Its functions can be extended with plugins. It has many other features, some of them listed below.

  • GCC 11 Compiler Might Finally Enable DWARF 5 Debugging By Default

    For a number of years the GNU Compiler Collection has shipped experimental support for the DWARF 5 debugging data format while finally for next year's GCC 11 release it might be deemed stable and used by default. The DWARF 5 debug data format was published back in 2017 to succeed the now decade old DWARF Version 4. With DWARF 5 there is support for better data compression, various performance improvements, better debug handling around optimized code, and other enhancements over DWARF4. DWARF 5 itself was in development for a half-decade and is detailed at DWARFstd.org.

Programming and Hardware Hacking

  • Raspberry Pi inspired MaaxBoard Mini SBC features NXP i.MX 8M Mini SoC

    Last year, Embest – an Avnet company – introduced MaaXBoard NXP i.MX 8M SBC mostly compatible with Raspberry Pi form factor and running Android 9.0 or Yocto Linux.

  • Code a GUI live with Digital Making at Home
  • RenderDoc 1.10 Released For This Leading Cross-Platform Graphics Debugger

    RenderDoc 1.10 was released on Friday for this leading open-source program supporting frame-capture-based debugging on Vulkan, OpenGL / GLES, and Direct3D across Windows, Linux, and Android along with platforms like Stadia and the Nintendo Switch. RenderDoc 1.10 brings various optimizations and speed improvements, which is always nice to see. RenderDoc should now have lower idle overhead, greater performance when capturing a frame on Vulkan in certain instances, faster cold startup time, improved replay time when switching events for Vulkan captures, and other optimizations.

  • Sublime Text – Best text editor for Linux [Ed: Why promote dodgy proprietary software when better editors exist that are Free/libre?]

    In this guide, you will learn how to install Sublime Text editor on Linux distributions like Ubuntu, Mint, Fedora, Manjaro, etc. Sublime Text is a cross-platform, light-weight code editor. It natively supports many programming and markup languages. Its functions can be extended with plugins. It has many other features, some of them listed below.

  • GCC 11 Compiler Might Finally Enable DWARF 5 Debugging By Default

    For a number of years the GNU Compiler Collection has shipped experimental support for the DWARF 5 debugging data format while finally for next year's GCC 11 release it might be deemed stable and used by default. The DWARF 5 debug data format was published back in 2017 to succeed the now decade old DWARF Version 4. With DWARF 5 there is support for better data compression, various performance improvements, better debug handling around optimized code, and other enhancements over DWARF4. DWARF 5 itself was in development for a half-decade and is detailed at DWARFstd.org.