[Wayland-bugs] [Bug 93315] Automatically scale windows?

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93315

--- Comment #17 from Olivier Fourdan <fourdan at xfce.org> ---
(In reply to Adam Goode from comment #16)
> Will these ideas also work for fractional scales? 1.25x screens are common
> now.

The scaling facter is an integer in Wayland protocol:

    <event name="scale" since="2">
      <description summary="output scaling properties">
        This event contains scaling geometry information
        that is not in the geometry event. It may be sent after
        binding the output object or if the output scale changes
        later. If it is not sent, the client should assume a
        scale of 1.

        A scale larger than 1 means that the compositor will
        automatically scale surface buffers by this amount
        when rendering. This is used for very high resolution
        displays where applications rendering at the native
        resolution would be too small to be legible.

        It is intended that scaling aware clients track the
        current output of a surface, and if it is on a scaled
        output it should use wl_surface.set_buffer_scale with
        the scale of the output. That way the compositor can
        avoid scaling the surface, and the client can supply
        a higher detail image.
      </description>
      <arg name="factor" type="int" summary="scaling factor of output"/>
    </event>

Beside, I am not sure how a quarter of a pixel would look like.

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