My KWIN fork where I work on features like per-output virtual desktops
Find a file
Arjen Hiemstra 2f4fa23e61 Use normalized UV coordinates for SurfaceItem
Relying on the texture matrix to normalize means we multiply every UV
coordinate with 1/scale, which leads to floating point errors and thus
errors in the UV coordinates. Instead, if we calculate normalized
coordinates directly we avoid floating point error and get proper UV
coordinates.

Longer term the plan is to make all UV coordinates normalized and get
rid of the CoordinateType altogether.
2022-07-14 11:34:45 +02:00
autotests Use floating geometry throughout 2022-07-14 10:04:46 +01:00
cmake/modules Allow usage of lcms2 when compiling with Clang 2022-05-14 21:17:39 +00:00
data Run clang-tidy with -checks=readability-braces-around-statements fixit 2022-03-28 10:54:11 +00:00
doc doc: modernise HACKING -> CONTRIBUTING guidelines and information 2021-08-31 22:10:58 +00:00
kconf_update Ship kconf update script to clean animation factor from kwinrc 2022-07-01 13:24:44 +00:00
LICENSES
src Use normalized UV coordinates for SurfaceItem 2022-07-14 11:34:45 +02:00
tests Fix Qt6 build of the xdgactivationtest 2022-05-06 18:45:17 +00:00
.clang-format Run clang-format 2022-03-25 13:25:15 +02:00
.gitignore Run clang-format 2022-03-25 13:25:15 +02:00
.gitlab-ci.yml gitlab-ci: Build decorations in minimal CI run 2022-03-16 11:01:43 +01:00
.kde-ci.yml Require passing unit tests on Linux and BSD 2022-06-15 18:58:47 +00:00
CMakeLists.txt gbm: Don't pass any flags when creating buffers with modifiers 2022-07-04 22:52:40 +00:00
CONTRIBUTING.md doc: modernise HACKING -> CONTRIBUTING guidelines and information 2021-08-31 22:10:58 +00:00
KWinDBusInterfaceConfig.cmake.in Expose org.kde.kwin.ColorCorrect.xml dbus file 2022-01-05 01:33:01 +00:00
logo.png
Mainpage.dox
plasma-kwin_wayland.service.in Re-enable systemd managed kwin 2021-12-02 13:25:50 +00:00
plasma-kwin_x11.service.in [systemd] Fix X11 service file 2022-01-20 16:18:48 +00:00
README.md doc: modernise HACKING -> CONTRIBUTING guidelines and information 2021-08-31 22:10:58 +00:00

KWin

KWin is an easy to use, but flexible, composited Window Manager for Xorg windowing systems (Wayland, X11) on Linux. Its primary usage is in conjunction with a Desktop Shell (e.g. KDE Plasma Desktop). KWin is designed to go out of the way; users should not notice that they use a window manager at all. Nevertheless KWin provides a steep learning curve for advanced features, which are available, if they do not conflict with the primary mission. KWin does not have a dedicated targeted user group, but follows the targeted user group of the Desktop Shell using KWin as it's window manager.

KWin is not...

  • a standalone window manager (c.f. openbox, i3) and does not provide any functionality belonging to a Desktop Shell.
  • a replacement for window managers designed for use with a specific Desktop Shell (e.g. GNOME Shell)
  • a minimalistic window manager
  • designed for use without compositing or for X11 network transparency, though both are possible.

Contributing to KWin

Please refer to the contributing document for everything you need to know to get started contributing to KWin.

Contacting KWin development team

  • mailing list: kwin@kde.org
  • IRC: #kde-kwin on irc.libera.chat

Support

Application Developer

If you are an application developer having questions regarding windowing systems (either X11 or Wayland) please do not hesitate to contact us. Preferable through our mailing list. Ideally subscribe to the mailing list, so that your mail doesn't get stuck in the moderation queue.

End user

Please contact the support channels of your Linux distribution for user support. The KWin development team does not provide end user support.

Reporting bugs

Please use KDE's bugtracker and report for product KWin.

Guidelines for new features

A new Feature can only be added to KWin if:

  • it does not violate the primary missions as stated at the start of this document
  • it does not introduce instabilities
  • it is maintained, that is bugs are fixed in a timely manner (second next minor release) if it is not a corner case.
  • it works together with all existing features
  • it supports both single and multi screen (xrandr)
  • it adds a significant advantage
  • it is feature complete, that is supports at least all useful features from competitive implementations
  • it is not a special case for a small user group
  • it does not increase code complexity significantly
  • it does not affect KWin's license (GPLv2+)

All new added features are under probation, that is if any of the non-functional requirements as listed above do not hold true in the next two feature releases, the added feature will be removed again.

The same non functional requirements hold true for any kind of plugins (effects, scripts, etc.). It is suggested to use scripted plugins and distribute them separately.