The accelerated relative coordinates are always relative to the desktop resolution, and need to be scaled with emulated fullscreen resolutions for mouse movement to remain stable. Otherwise, pointer speeds will be too fast on emulated resolutions below the desktop resolution, and too slow on those above.
The GPU API doesn't currently support transparent windows (transparent swapchain effects doesn't seem possible on D3D12) so we should explicitly fail so users don't expect transparency and then not get it.
Fixes https://github.com/libsdl-org/SDL/issues/12410
If the window is flagged with SDL_WINDOW_TRANSPARENT, create the associated swapchain with a composite alpha value that supports blending, if available.
Fixes transparent windows on the Vulkan backend, and prevents possible validation errors by ensuring that the composite alpha value is always a valid bit in VkSurfaceCapabilitiesKHR::supportedCompositeAlpha.
* Allow custom message boxes with colors and multiple buttons to work if Asyncify is enabled
* Keep old functionality of using alert when Asyncify is not available
* Update testmessage to allow for setting random colors as the color scheme of the message box
We can't use keyboard input as a signal about whether a keyboard is attached. There might be keyboard input from any number of generated inputs or non-keyboard devices.
The tm_gmtoff field of the broken-down time 'tm' struct wasn't formally standardized until POSIX.1-2024, but practically it has been available on desktop *nix platforms such as Linux/glibc, FreeBSD, OpenBSD, NetBSD, OSX/macOS (NextStep before that), and others since the 1990s. The notable exception is SunOS/Solaris, where the timezone offset must still be retrieved in the strictly POSIX.1-2008 compliant way.
SDL_IsGamepad() calls SDL_GetJoystickTypeForID(), which will call SDL_IsGamepad() if it's not a known controller type. The new code which is breaking was added to prevent Logitech FFB wheels from showing up as gamepads, which we check for separately.
On Windows 11, apparently HidD_GetManufacturerString() and HidD_GetProductString() can return TRUE without actually filling in any string data.
Fixes https://github.com/libsdl-org/SDL/issues/12566
These changes enable the Logitech G29 wheel to run on hidapi with both SDL_Joystick and SDL_Haptic interfaces.
While it is already possible to use the wheel on Linux in WINE + SDL2 thanks to the in-tree evdev driver as well as new-lg4ff, these set of changes allow the G29 to be used with WINE under MacOS and FreeBSD
These wheels should also be supported, but I can only test them from G29's compat modes: G27, G25, DFGT, DFP, DFEX
Haptic and led support are ported from https://github.com/berarma/new-lg4ff
SDL 2.0.18 added preciseX/Y to mouse wheel events, which we cannot
emulate in sdl2-compat without a mechanism to control integer position
and scroll deltas separately.
