This change makes keyboard inputs more responsive on Linux, especially
when the FPS is lower on slower configurations.
Polling events from the x server is done on a separate thread to avoid a
frame delay with inputs, due to first sending the event to the input
manager with XFilterEvent then processing the new event only on the next
frame.
Calls to Input Manager functions like XSetICFocus, XUnsetICFocus and
XSetICValues use a mutex, because they are polling events internally and
would otherwise interfere with our own thread process for polling events
which can cause a deadlock in some cases.
XUnsetICFocus is called instead of XSetICFocus on FocusOut events,
so the input manager can be properly notified of focus changes.
clipboard_get now uses a blocking call to poll for a specific event type
when waiting for a SelectionNotify event, instead of polling all events
and filtering them afterwards.
It was added in 3e20391bf6 but it doesn't seem
particularly useful, and it was only implemented for the custom splash branch
and not the default one, so it could return an uninitialized int.
1024 KB was low enough that many users seem to hit it, which can lead to the
editor freezing.
The proper fixed as described in #35653 would be to implement a page allocator
to prevent this overflow, but as a stop-gap measure, we can increase the
default value to a more lenient 4096 KB which should be high enough for the
vast majority of use cases.
The default size can be brought down again if/when #35653 is properly fixed,
and if it's actually relevant from a memory point of view.
Users are sometimes confused as to the `pressed` property not being
visible in the Button class documentation. This is because `pressed`
is defined in BaseButton.
The thread model option for physics (2D) and rendering (single-unsafe,
single-safe, multithread), was causing crashes/locks when set as
multithreaded and exported for a platform that does not support threads
(namely HTML5).
This commit ensures that when threads support is not available, that
option is ignored, and the equivalent of "single-unsafe" is always used
instead.
Fixes: #28683, #28621, #28596 and maybe others
For iOS we enable pvrtc feature by default for all backends
Etc1 for iOS doesn't have any sense, so it disabled.
Fixed checks in export editor.
Fixed pvrtc encoding procedure.
Edit by Akien: Forward-ported from #38076, this may not make sense as is for
Godot 4.0, but it's important that we have the latest code in sync with 3.2
for when more rendering backends and proper iOS support are added back.
Co-authored-by: Rémi Verschelde <rverschelde@gmail.com>
The engine now expects to emscripten FS to be setup and sync-ed before
main is called. This is exposed via `Module["initFS"]` which also allows
to setup multiple persistence paths (internal use only for now).
Additionally, FS syncing is done **once** for every loop if at least one
file in a persistent path was open for writing and closed, and if the FS
is not syncing already.
This should potentially fix issues reported by users where "autosave"
would not work on the web (never calling `syncfs` because of too many
writes).
