This prevents ABBA deadlocks caused by taking a hardware resource lock then delivering events at the same time another thread is taking a hardware resource lock from an event watch callback.
Fixes https://github.com/libsdl-org/SDL/issues/15709
Otherwise, it might cause a deadlock, if the output_callback runs in another
thread while the guaranteed initial hint callback fires. One will wait for the
SDL device lock, the other the pipewire thread loop lock, each already holding
what the other needs.
This way, the hint callback fires and we ignore it, since the stream isn't
set up yet...which is good, because we're about to create the stream and set
that exact same state on it directly anyhow. Now there's no chance of this
deadlock happening.
Reference Issue #15075.
Some sensors will occasionally report two identical timestamps in a row.
This leads to the timestamp wrapping calculation to underflow, subtracting
0x80000000 from the timestamp whenever it happens. By adjusting the wrap
test, we can just directly add zero to the timestamp, fixing the underflow.
That also covers removal of the call `SDLActivity.onNativeAccel`,
plus a change of comment under SDL_android.c.
Definitions were previously used while an accelerometer could be listed as a joystick.
This reverts commit 6b4ae68460.
It turns out this deadlock is possible for any joystick event delivery combined with an event watcher that locks joysticks. I'm reverting this change for now, and will be working on a better global solution for this problem.
There's no need to use the "A" version of GetModuleFileName on GDK; it returns
a UTF-8 string directly on this platform, but we can still use the UTF-16 "W"
version and cut down on code duplication.
This code runs once and caches the results, so we can take the one-time string
conversion overhead.
(for SDL_PROP_APP_METADATA_NAME_STRING if unset. If SDL_GetExeName() returns
NULL, it'll fallback to good ol' "SDL Application", as usual.)
Fixes#15692.
core/unix had a more-limited copy of filesystem/unix's implementation, called
SDL_GetExeName(). Replace that with a real implementation in filesystem, and
allow each platform to implement it as appropriate.
Implemented for Unix and Windows; most implementations are currently FIXME
stubs at the moment.
Reference Issue #15692.
If a mode with a closer refresh was found, but it had the same color depth as the current best match, it was being dropped. Only ignore the new mode if the color depth is below the current best match.
* SVE2 was actually disabled in fdfbbce, this issue is fixed
- The macro __ARM_FEATURE_SVE is only defined when the compilation target is set as -march=armv8-m+sve2
* Improves 8888 alpha-blending performance
- Now, in In-Order AArch64 processors, e.g. A520, SVE2 is better than NEON with the 128bit vector width
- For Out-of-order processors, NEON is still better than SVE2 (We could improve this in the future), the performance is improved from 3.0 to 3.6.
* The 8888 -> RGB565 performance is also improved (from 7.4 to 9.3)
This readds the "opengles" renderer, updated from SDL2 to work on SDL3.
Fixes#15661.
Co-authored-by: Ryan C. Gordon <icculus@icculus.org>
Co-authored-by: Cameron Cawley <ccawley2011@gmail.com>
The core mouse code will unfocus the window when a capture ends outside the window boundaries, but the backend still needs to update the internal focus references.
