On newer systems, the trick isn't necessary, and if you do it, if the user is
moving the mouse when launching the app, it'll show a hidden Dock.
Fixes#10340.
This is a special-case piece of functionality, generally these are expected
to go away during shutdown, but maybe someone is switching between audio
subsystems or something...
- Check for specific availability instead of waiting for "device ready."
- Don't use snd_pcm_wait, just use a simple SDL_Delay (nothing to recover).
- Fixed SDL_max call that should have been SDL_min (now using SDL_clamp).
- ALSA_RecordDevice() now returns 0 if no availability, which kicks us back
to WaitDevice to try again, as an extra safety check.
This makes sure we get reliable mouse enter/exit events from the system on
older macOS releases.
Newer releases don't have this problem--my assumption is that Cocoa has a
more aggressive default tracking area installed for some newer UI feature.
For 3.2.16, we'll use the explicit tracking area on older macOSes only, but
I'll remove that check in revision control for newer OSes and see what
happens.
Fixes#12725.
You can't have two sections with the same name (so it can generate unique
page anchors), so fix one of these, and tweak another thing that _isn't_ a
header but wikiheader's quick-and-dirty parser thinks is one.
Otherwise, the message box thread goes back to blocking, but the app's main
thread progresses to SDL_WaitThread and won't pump the event queue anymore.
On iOS, this means the messagebox won't pop back up (because it uses
SDL_RunOnMainThread, which needs the event loop to pump), but it's just bad
practice on any platform to stop pumping the event queue for indefinite
lengths of time.
Otherwise the window won't have focus until you click on it again. Calling
makeKeyAndOrderFront isn't enough to fix it, either.
This trick comes from a similar problem we solve in our
applicationDidFinishLaunching implementation: activate (give app focus to) the
system Dock, as something that definitely exists that isn't us and is harmless
to activate, and then activate us right afterwards. This unconfuses whatever
is getting confused inside Cocoa.
Fixes#12684.
So something like "index.pb" will now accept any file with a ".pb" extension,
to make macOS happy. This seems like a reasonable tradeoff.
Other minor cleanups.
Fixes#12778.
These events fire for other things, such as pressing a barrel button while
the pen is hovering.
The correct thing to do is check IS_POINTER_INCONTACT_WPARAM in the event.
If the pen is already touching or not, SDL_SendPenTouch() will do the right
thing, so it's safe to call it even if we're already in the right state.
This info shows up in `pw-top` ...Gnome's sound preferences (etc) would
already show something more app-specific, but this command line tool shows
specific stream names.
Previously, we would WaitDevice first, but that would feed a silent buffer
to AAudio upfront, introducing latency. When this change was made, the
semaphore count should have been adjusted, since we're waiting on one less
buffer.
Fixes#12882.
- Add checks that ObtainPhysicalAudioDevice() was previously doing
(is subsystem initialized, is device valid).
- Remove optimizations that copy string to stack to release device_hash_lock
before SDL_GetPersistentString is called. Probably not necessary, and made
the code more complex.
These callbacks run in a thread we don't control, but might call SDL_SetError,
which will claim a TLS slot that never gets otherwise deallocated. To prevent
the leak, finish each callback by explicitly freeing any thread-local data.
Fixes#12732.
SDL still manages hotplug and default device management here, but if a user
wants to use an external tool, such as `pactl move-sink-input`, to put it
onto a different device, they probably know what they're doing and we
shouldn't stop them.
If this turns out to have some unexpected consequences, though, we can revisit
the change.
Fixes https://github.com/libsdl-org/sdl2-compat/issues/367
Otherwise, in the time it takes the thread to start and other init tasks to
complete, we tend to get an underrun on some systems, which ALSA logs to
stderr.
So this is moved to an InitThread implementation, which runs from the device
thread, right before it begins its main loop.
Reference PR #12632.
This was intended to make the API public, so SDL_hashtable.h got an extreme
documentation makeover, but for now this remains a private header.
This makes several significant interface changes to SDL_HashTable, and
improves code that makes use of it in various ways.
- The ability to make "stackable" tables is removed. Apparently this still
worked with the current implementation, but I could see a future
implementation struggle mightily to support this. It'll be better for
something external to build on top of the table if it needs it, inserting a
linked list of stacked items as the hash values and managing them separately.
There was only one place in SDL using this, unnecessarily, and that has also
been cleaned up to not need it.
- You no longer specify "buckets" when creating a table, but rather an
estimated number of items the table is meant to hold. The bucket count was
crucial to our classic hashtable implementation, but meant less once we
moved to an Open Addressing implementation anyhow, since the bucket count
isn't static (and they aren't really "buckets" anymore either). Now you
can just report how many items you think the hash will hold and SDL will
allocate a reasonable default for you...or 0 to not guess, and SDL will
start small and grow as necessary, which is often the correct thing to do.
- There's no more SDL_IterateHashTableKey because there's no more "stackable"
hash tables.
- SDL_IterateHashTable() now uses a callback, which matches other parts of SDL,
and also lets us hold the read-lock for the entire iteration and get rid of
the goofy iterator state variable.
- SDL_InsertIntoHashTable() now lets you specify whether to replace existing
keys or fail if the key already exists.
- Callbacks now use SDL conventions (userdata as the first param).
- Other naming convention fixes.
I discovered we use a lot of hash tables in SDL3 internally. :) So the bulk
of this work is fixing up that code to use the new interfaces, and simplifying
things (like checking for an item to remove it if it already exists before
inserting a replacement...just do the insert atomically, it'll do all that
for you!).
_GetWinID() doesn't work with keyboard-related BMessages, because Haiku
assumes you know what window has keyboard focus at the time, so these events
don't have a `window-id` property. So when this call failed, the key event
handler would return early.
This was probably a copy/paste error that snuck in at some point, as SDL2
doesn't have this issue.
The comment in the source wasn't true; PipeWire doesn't _have_ to work in
float format. It presumably does if it has to mix, but if a game is the only
thing making noise on the system--a common scenario--then it might be able to
pass, say, Sint16 data straight through to the hardware without conversion.
Fixes#12129.
You can end up with a NULL scratch buffer, which is otherwise not needed on
this path, then ConvertAudio will end up needing that scratch space to move
to float32 to apply gain.
Fixes#12091.
(I assume.)
Audio streams used to accept audio with a src or dest frequency between
4000Hz and 384000Hz. It was arbitrary (or perhaps a relic of older
resampler revisions), and testing shows unnecessary, so remove it.
Fixes#12098.
It used to check for "software" in the hint, but now it has to parse a
comma-separated list.
If it tries to use the software renderer here, you'll end up in an infinite
recursion.
This doesn't affect latency much, but it makes the system usable if the system
drops you down from the bluetooth a2dp profile (headphones) to the handsfree
(I think...?) profile because the bluetooth audio device is also recording,
which would be extremely common in a VoIP app, but also if you're talking
in a different app while also playing audio.
Fixes#8192.
Ryan C. Gordon