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| author | ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com> | 2023-04-08 21:08:19 +0200 |
|---|---|---|
| committer | ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com> | 2023-04-08 21:08:19 +0200 |
| commit | eaf50f4779f6e52750f9ac42950969cd9d9e1656 (patch) | |
| tree | b8ef4ac13c9d4e4776ca46c19baec847ce512ef4 /documentation | |
| parent | 4c567a4dd9764a34a0263a1d624fa3d027ff20a4 (diff) | |
Wayland.dox: add "Fractional scaling" paragraph
Diffstat (limited to 'documentation')
| -rw-r--r-- | documentation/src/wayland.dox | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/documentation/src/wayland.dox b/documentation/src/wayland.dox index 7afca71d4..353509e45 100644 --- a/documentation/src/wayland.dox +++ b/documentation/src/wayland.dox @@ -518,6 +518,18 @@ that scales the graphics driver by this factor with \c cairo_scale(). Overall, an FLTK object, say an Fl_Window, of size \c WxH FLTK units occupies <tt>W * wld_scale * gui_scale x H * wld_scale * gui_scale</tt> pixels on the display. +<h3>Fractional scaling</h3> +The KDE compositor, and gnome too if specially set, allow to use <em>fractional scaling</em> +that can take values between 100% and 200%. Wayland implements this rendering all +<tt>wl_surface</tt>'s as if the scaling was at 200%, and downsizing them +to the desired fractional scale value at the compositing stage. +Seen from FLTK, everything runs as when <tt>wld_scale = 2</tt>. These commands make gnome +accept fractional scaling, and turn that off: +\code +gsettings set org.gnome.mutter experimental-features "['scale-monitor-framebuffer']" +gsettings reset org.gnome.mutter experimental-features +\endcode + \section wayland-mouse Mouse and trackpad handling |