A call to frame gdk_frame_clock_get_frame_time() outside of the paint
cycle could report an un-error-corrected frame time, and later a
corrected value could be earlier than the previously reported value.
We now always store the latest reported time so we can ensure
monotonicity.
(cherry picked from commit a27fed47e0d20579cd6506e4d2f90f316f7f85a2)
In commit c6901a8b, the frame clock reported time was changed from
simply reporting the time we ran the frame clock cycle to reporting a
smoothed value that increased by the frame interval each time it was
called.
However, this change caused some problems, such as:
https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/1415https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/1416https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/1482
I think a lot of this is caused by the fact that we just overwrote the
old frame time with the smoothed, monotonous timestamp, breaking
some things that relied on knowing the actual time something happened.
This is a new approach to doing the smoothing that is more explicit.
The "frame_time" we store is the actual time we ran the update cycle,
and then we separately compute and store the derived smoothed time and
its period, allowing us to easily return a smoothed time at any time
by rounding the time difference to an integer number of frames.
The initial frame_time can be somewhat arbitrary, as it depends on the
first cycle which is not driven by the frame clock. But follow-up
cycles are typically tied to the the compositor sending the drawn
signal. It may happen that the initial frame is exactly in the middle
between two frames where jitter causes us to randomly round in
different directions when rounding to nearest frame. To fix this we
additionally do a quadratic convergence towards the "real" time,
during presentation driven clock cycles (i.e. when the frame times are
small).
(cherry picked from commit 9ef3e700400d5d4d4fcfeb37cfe757566658b456)
On my X11 + nvidia setup gnome-shell doesn't report presentation times.
However it does report refresh rate. We were mostly using this in our
calculation except when computing predicted presentation time, were
it fell back on the default 60Hz.
(cherry picked from commit f1215d2d776dd44e389b7c141eaac3f72942deae)
If the tablet gets removed/freed while there are pad events in flight,
we leave a dangling pointer from the pad to the tablet, which may
lead to invalid reads/writes when handling the pad event(s).
Fixes: https://gitlab.gnome.org/GNOME/gtk/-/issues/2748
Once upon a time, there was a function called gdk_event_get_scroll_deltas().
It returned %TRUE when an event had scroll deltas and that was used as the
condition to decide whether to push scroll deltas to the scroll history,
even when the both deltas are 0 for the stop event at the end of scrolling.
When GtkScrolledWindow kinetic scrolling code was adapted for
GtkEventControllerScroll, it was replaced with a (dx != 0 && dy != 0)
check. This prevented the stop event from getting into the history, and
instead allowed non-smooth scrolling to affect the history as they have
synthetic deltas with one of the values being -1 or 1 and the other on 0.
Instead, check the direction as we already have it as a local variable.
To avoid making this mistake again, add a static assertion that the
enum is in sync with gtk_license_info, and use the length of
gtk_license_info for the precondition check.
Signed-off-by: Simon McVittie <smcv@debian.org>
Resolves: #2734
Reading form the back buffer is not allowed on software renderers,
and this is reported by the buffer age, so reading from GL_BACK
should not be done when the age is 0
Closes#64
On touch, the popup shown shall contain the 'select-all' button
only if a selection is in progress and if the entry is editable.
Let the button be shown always if selectable so that it’s more helpful.
When the code for this was copied from nautilus,
we forgot to adapt it for running in a library
instead of an application - gettext() doesn't work
in a library.
Fixes: #2690
Commit 07beb6dba29 made GtkAppChooserWidget useful with no content-type,
however when used in a GtkAppChooserDialog, this will lead to a confusing
"Opening (null) files" subtitle.
Fix this by omitting the subtitle altogether in that case.
They use powershell instead of cmd.exe, use the tag win32-ps instead of win32,
and run Windows 2016 instead of 2012r2.
The old runners will be switched off in the comming weeks.
This is a possible fix for https://gitlab.gnome.org/GNOME/gtk/-/issues/2657
Use a NULL return from g_file_query_info_finish() to detect cancellation
of the query, and avoid derferencing a stale pointer.
Instead of hardcoding gtk-xft-antialias, use SPI_GETFONTSMOOTHING to
determine whether antialiasing is enabled.
Make gtk-xft-rgba query more complex - try to determine display
orientation, then use that to rotate subpixel structure. This
won't help with monitors that have naturally vertical subpixels,
but should improve things for monitors that are rotated (as long
as Windows display settings are adjusted accordingly).
Partially fixes#1774
