Implement fractional scale with Xwayland rootful by scaling the content
to the desired fractional scale using a viewport.
For now this applies to Xwayland rootful only.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
Fractional scaling may not be available, or not suitable for the current
configuration (e.g. if running rootless).
Add a helper function to tell whether fractional scaling should be used.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
To support the fractional scale protocol, we need a viewport.
Rename the existing function xwl_window_enable_viewport() to avoid
confusion with the viewport we use for fullscreen XRandR emulation in
rootless mode.
No functional change.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
Recompute and update the global screen scale based on the different
outputs the root window is placed on.
For backward compatibility, this functionality is however disabled by
default and can be enabled using a new command line option "-hidpi".
That option has no effect if Xwayland is running rootless.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
Recompute the window scale each time the window enters or leaves an
output.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
Add a list of outputs a window is placed on, adding an output whenever
the surface enters the output and removing it once it leaves the output.
Note that not all Wayland compositors actually send a leave surface
event on output removal, so we need to make sure to remove the output
from the list for each window, otherwise we might end up pointing to
freed memory.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
By using a sensible scale factor for input even when there is no
viewport enabled, no need to have xwl_window_has_viewport_enabled()
public anymore.
Small cleanup, no functional change.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
The viewport's scale_x/y is currently applied to the motion event only.
Apply the same viewport_scale_x/y to all relevant input coordinates.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
When the viewport is disabled, set the scale x/y back to 1.0 so that we
can apply the scale factor regardless of the viewport being enabled.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
The scale_x/y factor applies when a viewport is in use, rename the
fields to reflect that and distinguish these from the other scale
factors such as the core protocol surface scale and the fractional
scaling.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
Apply the scale factor to the root window and adjust the coordinates and
hotspot location for cursors.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
For now, the global surface scale is always 1, no functional change.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
Keep track of the output scales as advertised by the wl_output protocol.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
Advertise the scaling factor applied to the Xwayland output using the
mechanism of CRTC transforms.
That allows for X11 clients to query the scale factor using XRandR.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
Add a scale factor to the Xwayland output and take the scale into
account when computing the screen size.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
The mode size can be different from the actual output size when a
transformation is at play.
Store the actual mode width/height as well in preparation for adding
support for transforms.
No functional change.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
Use double precision floating point for the screen size to reduce the
rounding issues when using fractional scaling.
Introduce a couple of simple convenient functions that round the
floating point value into an integer and use it in place of directly
accessing the xwl_screen width/height for integer computation.
This is preparation work for the introduction of fractional scaling,
there should be no functional change at this point.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-By: Kenny Levinsen <kl@kl.wtf>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1197>
GLAMOR needs that, and the function returns TRUE unless GLAMOR is not
used.
Drop the function xwl_glamor_needs_buffer_flush() and call
glamor_block_handler() when glamor is used.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1386>
Now that we have only one backend, there is no need to initialize or
select between different backends.
Drop the corresponding functions.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1386>
Now that we have only one GBM backend, either it is available and
usable, or we cannot use GLAMOR.
Therefore we can drop the flag "is_available".
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1386>
And call xwl_glamor_gbm_init_egl() directly instead.
Yet, keep the function separate rather than merging it back into
xwl_glamor_init() for clarity of the code.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1386>
That will be used between the generic Xwayland GLAMOR functions and the
GBM implementation.
Move the definition of xwl_glamor_init_gbm() to that new header rather
than in the generic Xwayland GLAMOR header.
This is preparation work to eventually replace the xwl_egl_backend now
that we have only one backend left.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1386>
Enrico Weigelt, metux IT consult
Olivier Fourdan
Peter Hutterer