The annotations have been added to SDL_mutex.h and have been made public so applications can enable this for their own code.
Clang assumes that locking and unlocking can't fail, but SDL has the concept of a NULL mutex, so the mutex functions have been changed not to report errors if a mutex hasn't been initialized. We do have mutexes that might be accessed when they are NULL, notably in the event system, so this is an important change.
This commit cleans up a bunch of rare race conditions in the joystick and game controller code so now everything should be completely protected by the joystick lock.
To test this, change the compiler to "clang -Wthread-safety -Werror=thread-safety -DSDL_THREAD_SAFETY_ANALYSIS"
This happens when using Win+Alt+Left/Right on a resizable fullscreen desktop window on Windows
(cherry picked from commit 650e16a8245f3fb5056fc7f6b398fb88244b3477)
It was previously thought that these function calls were unnecessary as the initial bug and reproduction case that necessitated their addition seemed to be fixed, but apparently there are still cases where this needs to be set explicitly. Set the xdg surface geometry at creation time and when the window size changes.
Partially reverts #6361. This is not needed in the libdecor path, as libdecor calls this for the content surface internally.
(cherry picked from commit 90a964f132c63b07cf85e5687041d214fdea60f6)
Num Lock and Caps Lock always need to be explicitly handled by the modifier handler function, or they won't be correctly set if active at application startup, or if the lock state is changed while the application lacks focus since a key press for these keys will never be received. In these cases, the internal SDL modifier state can end up the inverse of the actual modifier state.
(cherry picked from commit 653e484da17d773f40bff94121a23a3b38f47a0a)
I updated .clang-format and ran clang-format 14 over the src and test directories to standardize the code base.
In general I let clang-format have it's way, and added markup to prevent formatting of code that would break or be completely unreadable if formatted.
The script I ran for the src directory is added as build-scripts/clang-format-src.sh
This fixes:
#6592#6593#6594
(cherry picked from commit 5750bcb174300011b91d1de20edb288fcca70f8c)
The new protocol adds support for more native communication of
fractional scaling.
Everything in the wayland backend already existed only our fractional
scale was calculated implicitly through a combination of output size
guesswork for fullscreen windows.
This new protocol makes that explicit, providing a more robust solution
and a solution for non-fullscreen surfaces. The fallback code is still
left in place for now whilst compositors gain support.
- do not overwrite error message set by SDL_InitFormat (SDL_AllocFormat)
- set proper error message (Cocoa_Metal_CreateView)
- protect against allocation failure (UIKit_Metal_CreateView)
(cherry picked from commit cf0cb44df88a4293805fdc926880155d58a46bea)
- SDL_CreateMutex returns NULL when the creation fails (ngage)
- SDL_SemValue returns 0 when the semaphore is NULL (n3ds)
(cherry picked from commit 6875e1c262ae968a4fb52b367cf6912d9c76d4c9)
* Add braces after if conditions
* More add braces after if conditions
* Add braces after while() conditions
* Fix compilation because of macro being modified
* Add braces to for loop
* Add braces after if/goto
* Move comments up
* Remove extra () in the 'return ...;' statements
* More remove extra () in the 'return ...;' statements
* More remove extra () in the 'return ...;' statements after merge
* Fix inconsistent patterns are xxx == NULL vs !xxx
* More "{}" for "if() break;" and "if() continue;"
* More "{}" after if() short statement
* More "{}" after "if () return;" statement
* More fix inconsistent patterns are xxx == NULL vs !xxx
* Revert some modificaion on SDL_RLEaccel.c
* SDL_RLEaccel: no short statement
* Cleanup 'if' where the bracket is in a new line
* Cleanup 'while' where the bracket is in a new line
* Cleanup 'for' where the bracket is in a new line
* Cleanup 'else' where the bracket is in a new line
(cherry picked from commit 6a2200823c66e53bd3cda4a25f0206b834392652 to reduce conflicts merging between SDL2 and SDL3)
`argv[0]`/`getexexname()` are not always absolute paths by default and can be modified to anything the developer wants them to be.
Consider using `readSymLink("/proc/self/path/a.out")` instead and `getexecname()` as the fallback, since the symlink will always be the correct absolute path (unless /proc is ot mounted, but it is by default on Solaris and Illumos platforms).
(cherry picked from commit 4f5e9fd5bda0d58c2907f75fa4ea0c92c3a2525f)
Explicitly include the Wayland protocol headers when statically linking against the Wayland libraries or older system headers might be used instead of the local versions.
(cherry picked from commit 836eb224428aca3bdab2a6bf56d347262e475b15)
GNU grep 3.8 emits a deprecation warning on use of egrep/fgrep.
Signed-off-by: Sam James <sam@gentoo.org>
(cherry picked from commit 3e7952ce8a0affd325c802755cae5fd843b86d99)
The typedef seems to be pulled in coincidentally with newer SDKs, but
older ones need to import the header explicitly.
(cherry picked from commit d2910904fb4062c313636c7595e971f1bf248075)
This reverts commit 33a68f575f.
We don't want the G29 to show up as a gamepad, Steam will create a virtual Xbox controller for it, which breaks racing games.
When changing the window state from non-floating to floating (e.g. leaving fullscreen), libdecor can send bogus content sizes that are +/- the height of the window title bar and start 'walking' the window height in one direction or the other with every transition.
The floating window size is known, so use the cached value instead of the size reported by libdecor when restoring the floating state.
Some applications (and embarrassingly, testime is one of them) call
SDL_StartTextInput() or SDL_SetTextInputRect() every frame. On KDE/KWin
with fcitx5, this causes there to be several preedit events every frame
(particularly given some of the workarounds in Wayland_StartTextInput),
which slows testime down to an unusable crawl.
Instead, make SDL_StartTextInput() a no-op if text input is already
enabled, and cache the input rect, only changing it when the new rect is
actually different.
With these changes, we only get preedit events (and hence
SDL_TEXTEDITING events) when the preedit string actually changes. This
matches the behaviour under XWayland, and works very smoothly.
This needs to check what our deployment target is, not what SDK
is available, since this is a linker symbol and not an enum
value or whatever.
Also removed a copy/paste error that mentioned CoreAudio in
the haptic subsystem.
Fixes#6534.
The XKB_KEY_* and XK_* macros resolve to the same constant values, so use the raw values and note what keys they correspond to in the comments, as is done for the other keysym values in this file.
This completely eliminates the need for any X or XKB system headers along with the if/else defines.
Most of these are probably harmless, but the changes to SDL_immdevice.c and SDL_pixels.c appear to have fixed genuine bugs.
SDL_audiocvt.c: By separating the calculation of the divisor, I got rid of the suspicion that dividing a double by an integer led to loss of precision.
SDL_immdevice.c: Added a missing test, one that could have otherwise led to dereferencing a null pointer.
SDL_events.c, SDL_gamecontroller.c, SDL_joystick.c, SDL_malloc.c, SDL_video.c: Made it clear the return values weren't used.
SDL_hidapi_shield.c: The size is zero, so nothing bad would have happened, but the SDL_memset() was still being given an address outside of the array's range.
SDL_dinputjoystick.c: Initialize local data, just in case IDirectInputDevice8_GetProperty() isn't guaranteed to write to it.
SDL_render_sw.c: drawstate.viewport could be null (as seen on line 691).
SDL.c: SDL_MostSignificantBitIndex32() could return -1, though I don't know if you want to cope with that (what I did) or SDL_assert() that it can't happen.
SDL_hints.c: Replaced boolean tests on pointer values with comparisons to NULL.
SDL_pixels.c: Looks like the switch is genuinely missing a break!
SDL_rect_impl.h: The MacOS static checker pointed out issues with the X comparisons that were handled by assertions; I added assertions for the Y comparisons.
SDL_yuv.c, SDL_windowskeyboard.c, SDL_windowswindow.c: Checked error-result returns.
This reverts commit 04b50f6c6b.
It turns out OpenGL vsync has broken again in macOS 12, so
we're reintroducing our CVDisplayLink code to deal with it,
again.
Reference Issue #4918.
SDL is built around the concept of keyboards having a fixed layout with scancodes that correspond to physical keys no matter what linguistic layout is used. Virtual keyboards don't have this concept and can present an arbitrary layout of keys with arbitrary scancodes and names, which don't fit the SDL model. When one of these keyboards is encountered, it requires special handling: use the keysym of the pressed keys to derive their ANSI keyboard scancode equivalents for control keys and ASCII characters. All other characters are passed through as text events only.
Add a helper function to get the keycode for a scancode from the default lookup table. Unlike SDL_GetKeyFromScancode(), this is not affected by the set keymap.
It turns out that we can safely create a Metal view on an existing window, and that avoids issues with the window being recreated with the wrong orientation in iOS 16.
Fixes https://github.com/libsdl-org/SDL/issues/6289
Clamp the wl_seat max version to 5 if being built against a version of libwayland below 1.21.0, or containers that bundle newer versions of SDL with older versions of libwayland can break if the compositor advertises support for a protocol version above 5.
- use _Interlocked(Compare)ExchangePointer in case of _M_IX86 as well
- improve assertions:
1. add assertions to SDL_AtomicAdd/SDL_AtomicSet and SDL_AtomicCAS
2. use sizeof(a->value) instead of sizeof(int)
Sending rumble to the Amazon Luna controller on macOS gets there, but IOHIDDeviceSetReport() blocks for a long time and eventually fails.
This appears to be a bug in the macOS Bluetooth stack, ref rdar://99265496
- SDL_EventQ.active is a bool variable -> do not use SDL_AtomicGet/Set, it does not help in any way
- protect SDL_EventQ.active with SDL_EventQ.lock
- set SDL_EventQ.active to FALSE by default
This is a USB adapter for controllers shipped with Nintendo's NES-mini and
SNES-mini consoles.
Tested with both NES and SNES controllers, buttons map as expected on both.
Most of this code is disabled out for now.
- For mouse cursors we have a wl_surface for both system and custom
cursors which needs recreating.
- The other patch is about nullification after deletions
This works around udev event nodes arriving before hidraw nodes and the controller being opened twice - once using the Linux driver and once by the HIDAPI driver.
This also fixes a kernel panic on Steam Link hardware due to trying to open the hidraw device node too early.
A delay of 10 ms seems to be a good value, tested on Steam Link hardware.
If relative mouse mode is explicitly enabled, don't modify the capture flag on button events or the window might report having lost mouse focus if a button is pressed while moving the cursor.
This is a functional state for some window managers (tested using stock Ubuntu 22.04.1), and removing that state, e.g. using SDL_RestoreWindow(), results in a window centered and floating, and not visually covering the rest of the desktop.
This uses a newer browser API to get physical scancodes, but still
uses the (deprecated) event field that we were already using for
scancodes, but for keycodes instead now, which appears to be more
accurate.
Since keyboard layout isn't (generally) available to web apps, this
adds an internal interface to send key events with both scancode
and keycode to SDL's internals, instead of sending just scancodes and
expecting SDL to use its own keymap to generate keycodes.
Future work in this area would be to use the keyboard layout APIs
on browsers that support them, which would allow us to use SDL's
usual keymap code and not rely on a deprecated browser API, but
until we get there, this patch gives significantly more correct
results than we would have before.
Fixes#2098.
Exit the fullscreen sequence sooner if it is requested that a popup window be fullscreen.
The surface commit formerly in this path is irrelevant and can be removed as previous changes made it so that SetFullscreen() is no longer called from anywhere except Wayland_SetWindowFullscreen().
The controller can use either hat or buttons for the D-Pad, depending on what Linux driver is in use. The automatic mapping in LINUX_JoystickGetGamepadMapping() will do the right thing based on the exposed capability bits.
I'm sure this is the case for other controllers as well, so we might be removing more mappings over time.
Clear the window to black on the initial window draw, to avoid a really
obnoxious white flash. This doesn't always eliminate it, but it
definitely minimizes it.
This makes the colorspace match across different graphics APIs. By
default, OpenGL was getting a much more saturated colorspace (maybe
Display P3?) and it was looking very different from the rendering done
by Metal or MoltenVK.
- SDL_LoadObject: upon failure, strip the .dll extension and retry,
but only if module name has no path.
- SDL_LoadFunction: upon failure, retry with an underscore prepended,
e.g. for gcc-built dlls.
- strlcpy was passed a wrong buffer length parameter. has worked so
far by luck.
- use memcpy instead of strlcpy for simplicity.
- 'append' has been a typo: should be 'prepend'.
Otherwise the thread might block for a long time (more than 10 seconds!).
It's not clear to me why this happens, or why its safe to do this with a
resource that's still in use, but we have, until recently, always
disposed of the AudioQueue first, so changing back is probably okay.
Also changed the disposal to allow in-flight buffers to reach hardware;
otherwise you lose the last little bit of audio that's already been queued
but not played, which you can hear clearly in the loopwave test program.
Fixes#6377.
Disabling RAWINPUT on Windows 10 causes these issues:
* All Xbox controllers are named "XInput Controller".
* Trigger rumble no longer works.
* "XInput Controllers" are now also listed as separate haptic devices
It's only needed to support more than 4 Xbox controllers, and adds significant complexity to the joystick processing, and we regularly get bugs from people who aren't using an SDL window who need to turn on SDL_HINT_JOYSTICK_THREAD.
Replace instances of fprintf(stderr, ...) with SDL_SetError(), replace C++ comments with C style, use a uniform format for multi-line comments, and remove unused headers as poll and select aren't used in this file (the SDL function which calls them is used instead).
