This means the allocator's caller doesn't need to use SDL_OutOfMemory directly
if the allocation fails.
This applies to the usual allocators: SDL_malloc, SDL_calloc, SDL_realloc
(all of these regardless of if the app supplied a custom allocator or we're
using system malloc() or an internal copy of dlmalloc under the hood),
SDL_aligned_alloc, SDL_small_alloc, SDL_strdup, SDL_asprintf, SDL_wcsdup...
probably others. If it returns something you can pass to SDL_free, it should
work.
The caller might still need to use SDL_OutOfMemory if something that wasn't
SDL allocated the memory: operator new in C++ code, Objective-C's alloc
message, win32 GlobalAlloc, etc.
Fixes#8642.
Now it returns an array and optional count, to match other SDL3 APIs.
SDL_GetTouchName() was replaced with a function that takes an instance ID
instead of an index, too.
This uses the same `SDL_VerbNoun` format as the rest of SDL3, and also
adds stronger effort to invalidate cached state in the backend, so cooperation
improves with apps that are using lowlevel rendering APIs directly.
Fixes#367.
The included ones need to wait until SDL_Init has run, or you'll get an empty
list, and we might also be adding more from an external gamecontrollerdb.txt
file, too.
Don't do it in POST_BUILD to avoid multiple parallel builds
stepping on each others toes.
Also don't use copy_if_different, but unconditionally copy it.
The build system should take care of dependencies.
Old implementation with `MapVirtualKey(..., MAPVK_VK_TO_CHAR) & 0x7FFFF` simply returned `A`..`Z` for VK_A..VK_Z and
completely useless <U+0002 START OF TEXT> (`WCH_LGTR 0xF002` without high-order bit) in case of ligature.
See https://kbdlayout.info/features/ligatures for a list of affected keyboard layouts.
More info on `MAPVK_VK_TO_CHAR`: https://stackoverflow.com/a/72464584/1795050
xinput2_device_is_pen() was testing against default-zero values
in the X11 Atom cache on at least the first round of
detections, leading to imprecise detection.
The patch fixes two aspects of initialisation:
1. Ensure that the selector cache is always initialised in
xinput2_device_is_pen().
2. Ensure that all X11 Atoms used in SDL_x11pen.c are instantiated if
missing. This ensures that they are never None and avoids potential
failures to detect hot-plugged tablet devices.
Acknowledgements: @tilman3 for narrowing down the issue and an
initial fix
Otherwise, a massive line might generate gigabytes worth of points to render,
which the backend would simply throw away anyhow.
Fixes#8113.
(cherry picked from commit 4339647d900bb8559ac3f6258166d21fe6d72a9a)
SDL Wiki Bot
Dimitriy Ryazantcev
Ryan C. Gordon
Cameron Cawley
Ozkan Sezer
Anonymous Maarten
Sam Lantinga
shenleban tongying
Jake S. Del Mastro
Sylvain
Christoph Reichenbach