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.
We have gotten feedback that abstracting the coordinate system based on the display scale is unexpected and it is difficult to adapt existing applications to the proposed API.
The new approach is to provide the coordinate systems that people expect, but provide additional information that will help applications properly handle high DPI situations.
The concepts needed for high DPI support are documented in README-highdpi.md. An example of automatically adapting the content to display scale changes can be found in SDL_test_common.c, where auto_scale_content is checked.
Also, the SDL_WINDOW_ALLOW_HIGHDPI window flag has been replaced by the SDL_HINT_VIDEO_ENABLE_HIGH_PIXEL_DENSITY hint.
Fixes https://github.com/libsdl-org/SDL/issues/7709
* Fix -Wundef warnings due to use of unguarded SDL_LOADSO_DISABLED
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_WINDOWS
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_ANDROID
* Fix -Wundef warnings due to use of unguarded SDL_LOADSO_DUMMY
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_COCOA
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_UIKIT
* Fix -Wundef warnings due to use of unguarded SDL_TIMERS_DISABLED
* Fix -Wundef warnings due to use of unguarded SDL_EVENTS_DISABLED
* Fix -Wundef warnings due to use of unguarded SDL_TIMER_DUMMY
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DISABLED
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DISABLED
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_DISABLED
* Fix -Wundef warnings due to use of unguarded SDL_HAPTIC_DISABLED
* Fix -Wundef warnings due to use of unguarded SDL_SENSOR_DISABLED
* Fix -Wundef warnings due to use of unguarded __ANDROID__
* Fix -Wundef warnings due to use of unguarded __IOS__
* Fix -Wundef warnings due to use of unguarded EMULATE_CAS
* Fix -Wundef warnings due to use of unguarded SDL_ATOMIC_DISABLED
* Fix -Wundef warnings due to use of unguarded SDL_THREADS_DISABLED
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_SNDIO
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_NETBSD
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_WASAPI
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_DSOUND
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_HAIKU
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_COREAUDIO
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_AAUDIO
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_OPENSLES
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_ANDROID
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_PS2
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_PSP
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_VITA
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_N3DS
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_EMSCRIPTEN
* Fix -Wundef warnings due to use of unguarded SDL_NEON_INTRINSICS
* Fix -Wundef warnings due to use of unguarded SDL_ALTIVEC_BLITTERS
* Fix -Wundef warnings due to use of unguarded __VITA__
* Fix -Wundef warnings due to use of unguarded __3DS__
* Fix -Wundef warnings due to use of unguarded SDL_DYNAPI_PROC_NO_VARARGS
* Fix -Wundef warnings due to use of unguarded __APPLE__
* Fix -Wundef warnings due to use of unguarded __WINRT__
* Fix -Wundef warnings due to use of unguarded SDL_HIDAPI_DISABLED
* Fix -Wundef warnings due to use of unguarded __TVOS__
* Fix -Wundef warnings due to use of unguarded HAVE_DRIVER_BACKEND
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_XINPUT
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_WGI
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_DINPUT
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_MFI
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_EMSCRIPTEN
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_PS2
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_PSP
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_VITA
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_N3DS
* Fix -Wundef warnings due to use of unguarded __MACOS__
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_RENDER_D3D
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_WINRT
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_RPI
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_VITA_PVR_OGL
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_VIVANTE
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_RENDER_D3D11
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_RENDER_D3D12
* Fix -Wundef warnings due to use of unguarded SDL_RENDER_DISABLED
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_RENDER_METAL
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_RENDER_PS2
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_RENDER_PSP
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_RENDER_VITA_GXM
* Fix -Wundef warnings due to use of unguarded SDL_ARM_SIMD_BLITTERS
* Fix -Wundef warnings due to use of unguarded SDL_ARM_NEON_BLITTERS
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_HAIKU
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_PS2
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_PSP
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_VITA
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_N3DS
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_KMSDRM
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_RISCOS
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_EMSCRIPTEN
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_NGAGE
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_METAL
* Fix -Wundef warnings due to use of unguarded SDL_LSX_INTRINSICS
* Fix -Wundef warnings due to use of unguarded HAVE_PTHREAD_NP_H
* Fix -Wundef warnings due to use of unguarded __RISCOS__
* Fix -Wundef warnings due to use of unguarded FAKE_RECURSIVE_MUTEX
* Fix -Wundef warnings due to use of unguarded USE_POSIX_SPAWN
* textureData is only needed when SDL is built with YUV support
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_ALSA
* Fix -Wundef warnings due to use of unguarded SDL_SSE3_INTRINSICS
* Fix -Wundef warnings due to use of unguarded SDL_SSE4_2_INTRINSICS
* Fix -Wundef warnings due to use of unguarded SDL_SSE4_1_INTRINSICS
* Fix -Wundef warnings due to use of unguarded SDL_AVX512F_INTRINSICS
* Fix -Wundef warnings due to use of unguarded SDL_SSE2_INTRINSICS
* Fix -Wundef warnings due to use of unguarded SDL_AVX_INTRINSICS
* Fix -Wundef warnings due to use of unguarded SDL_AVX2_INTRINSICS
* Fix -Wundef warnings due to use of unguarded SDL_SSE_INTRINSICS
* Fix -Wundef warnings due to use of unguarded SDL_MMX_INTRINSICS
* Fix -Wundef warnings due to use of unguarded HAVE_CLOCK_GETTIME
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_DISK
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_DUMMY
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_DUMMY
* Fix -Wundef warnings due to use of unguarded HAVE_GCC_ATOMICS
* Fix -Wundef warnings due to use of unguarded HAVE_GCC_SYNC_LOCK_TEST_AND_SET
* Fix -Wundef warnings due to use of unguarded SDL_USE_LIBDBUS
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_JACK
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_VIRTUAL
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_LINUX
* Fix -Wundef warnings due to use of unguarded HAVE_LIBC
* Fix -Wundef warnings due to disabling SDL_LIBC
* Fix -Wundef warnings due to use of unguarded HAVE_PLATFORM_BACKEND
* Fix -Wundef warnings due to use of unguarded DEBUG
* Fix -Wundef warnings due to use of unguarded HAVE_LINUX_INPUT_H
* Fix -Werror=unused-variable when building with SDL_LIBC=OFF
* Fix -Wundef warnings due to use of unguqrded SDL_USE_LIBUDEV
* Use SDL alloc functions in libusb/hid.c
* Fix -Wundef warnings due to use of unguarded HAVE_LIBUDEV_H
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_VULKAN
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_OFFSCREEN
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_RENDER_OGL
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_OPENGL
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_OPENGL_GLX
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_OPENGL_ES
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_OPENGL_ES2
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_RENDER_OGL_ES2
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_OSS
* Remove SDL_AUDIO_DRIVER_SUNAUDIO reference since it is never set
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_PIPEWIRE
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_PULSEAUDIO
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_X11_XCURSOR
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_X11_XDBE
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_X11_XFIXES
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_X11_XINPUT2
* Fix -Wundef warnings due to use of unguarded #if SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH
* Fix -Wundef warnings due to use of unguarded #if SDL_VIDEO_DRIVER_X11_XRANDR
* Fix -Wundef warnings due to use of unguarded #if SDL_VIDEO_DRIVER_X11_XSCRNSAVER
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_X11_XSHAPE
* Don't call XShape functions when XShape is diabled
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_WAYLAND
* Fix -Wundef warnings due to use of unuarded SDL_VIDEO_DRIVER_X11
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_RISCOS
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_OPENGL_EGL
* Disable array when compiled with SDL_EVENTS=OFF
* Fix -Wundef warnings due to use of unguarded SDL_INPUT_LINUXEV
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_PTHREAD
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_WINDOWS
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_PS2
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_PSP
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_VITA
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_N3DS
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_STDCPP
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_NGAGE
* Fix -Wundef warnings due to use of unguarded __WINDOWS__
* Fix -Wundef warnings due to use of unguarded __WINGDK__
* Fix -Wundef warnings due to use of unguarded __ANDROID__
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_GENERIC_COND_SUFFIX
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_VITA_PIB
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_VITA_PVR
* Fix -Wundef warnings due to use of unguarded SDL_FILE_DISABLED
* Fix -Wundef warnings due to use of unguarded __XBOXONE__
* Fix -Wundef warnings due to use of unguarded __XBOXSERIES__
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_OPENGL_WGL
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_QNX
* Fix -Wundef warnings due to use of unguarded SDL_AUDIO_DRIVER_DISK
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_QNX
* Fix -Wundef warnings due to use of unguarded DEBUG_RAZOR
* Fix -Wundef warnings due to use of unguarded WINAPI_FAMILY_PHONE_APP
* Fix -Wundef warnings due to use of unguarded SDL_MAC_NO_SANDBOX
* Fix -Wundef warnings due to use of unguarded __(IPHONE|APPLETV|MAC)_OS_VERSION_MAX_ALLOWED
* Fix C4090 warning ('function': different 'const' qualifiers)
* ci: use -isystem for include dirs of pspdev toolchain
* cmake: add -Wundef option
* Fix remaining -Wundef warnings due to use of unguarded SDL_VIDEO_VULKAN and SDL_VIDEO_METAL
* Fix -Wundef warnings due to use of unguarded __MACOS__
* DEBUG_CONVERT is guaranteed to be defined in src/audio/SDL_audiocvt.c
* Fix -Wundef warnings due to use of unguarded HAVE_NANOSLEEP
* Fix -Wundef warnings due to use of unguarded HAVE_DXGI_H
* Fix -Wundef warnings due to use of unguarded HAVE_LINUX_INPUT_H
* fix SDL_VIDEO_DRIVER_WAYLAND
* fix SDL_VIDEO_DRIVER_X11
* Fix -Wundef warnings due to use of unguarded HAVE_MMDEVICEAPI_H
* Fix -Wundef warnings due to use of unguarded HAVE_PTHREAD_SETNAME_NP
* Fix -Wundef warnings due to use of unguarded HAVE_PTHREAD_SET_NAME_NP
* Fix -Wundef warnings due to use of unguarded HAVE_SETJMP
* Fix -Wundef warnings due to use of unguarded HAVE_SIGNAL_H
* Fix -Wundef warnings due to use of unguarded HAVE_TPCSHRD_H
* Fix -Wundef warnings due to use of unguarded MACOSX_COREAUDIO
* Fix -Wundef warnings due to use of unguarded SDL_HAPTIC_DINPUT
* Fix -Wundef warnings due to use of unguarded SDL_HAPTIC_IOKIT
* Fix -Wundef warnings due to use of unguarded SDL_HAPTIC_XINPUT
* Fix -Wundef warnings due to use of unguarded SDL_IPHONE_KEYBOARD
* Fix -Wundef warnings due to use of unguarded SDL_JOYSTICK_RAWINPUT
* Fix -Wundef warnings due to use of unguarded SDL_POWER_ANDROID
* Fix -Wundef warnings due to use of unguarded SDL_POWER_EMSCRIPTEN
* Fix -Wundef warnings due to use of unguarded SDL_POWER_HAIKU
* Fix -Wundef warnings due to use of unguarded SDL_POWER_LINUX
* Fix -Wundef warnings due to use of unguarded SDL_POWER_MACOSX
* Fix -Wundef warnings due to use of unguarded SDL_POWER_PSP
* Fix -Wundef warnings due to use of unguarded SDL_POWER_UIKIT
* Fix -Wundef warnings due to use of unguarded SDL_POWER_VITA
* Fix -Wundef warnings due to use of unguarded SDL_POWER_WINDOWS
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_PTHREAD_RECURSIVE_MUTEX
* Fix -Wundef warnings due to use of unguarded SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_VIVANTE_VDK
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_WAYLAND
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_OPENGL_CGL
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_OPENGL_EGL
* Fix -Wundef warnings due to use of unguarded __MACOS__
* Fix -Wundef warnings due to use of unguarded __OpenBSD__
* Fix -Wundef warnings due to use of unguarded __FreeBSD__
* Fix -Wundef warnings due to use of unguarded __MWERKS__
* Fix -Wundef warnings due to use of unguarded __WIN32__
* Fix -Wundef warnings due to use of unguarded SDL_IPHONE_LAUNCHSCREEN
* Fix -Wundef warnings due to use of unguarded SDL_VIDEO_OPENGL_ES2
* Remove unused HAVE_CONST, HAVE_INLINE and HAVE_VOLATILE
* Revert "Use SDL alloc functions in libusb/hid.c"
This reverts commit 847c64b00d.
* Handle FAKE_RECURSIVE_MUTEX in similar way as SDL2
* Don't use defined in macro
Rather than iterating over display modes using an index, there is a new function SDL_GetFullscreenDisplayModes() to get the list of available fullscreen modes on a display.
{
SDL_DisplayID display = SDL_GetPrimaryDisplay();
int num_modes = 0;
SDL_DisplayMode **modes = SDL_GetFullscreenDisplayModes(display, &num_modes);
if (modes) {
for (i = 0; i < num_modes; ++i) {
SDL_DisplayMode *mode = modes[i];
SDL_Log("Display %" SDL_PRIu32 " mode %d: %dx%d@%gHz, %d%% scale\n",
display, i, mode->pixel_w, mode->pixel_h, mode->refresh_rate, (int)(mode->display_scale * 100.0f));
}
SDL_free(modes);
}
}
SDL_GetDesktopDisplayMode() and SDL_GetCurrentDisplayMode() return pointers to display modes rather than filling in application memory.
Windows now have an explicit fullscreen mode that is set, using SDL_SetWindowFullscreenMode(). The fullscreen mode for a window can be queried with SDL_GetWindowFullscreenMode(), which returns a pointer to the mode, or NULL if the window will be fullscreen desktop. SDL_SetWindowFullscreen() just takes a boolean value, setting the correct fullscreen state based on the selected mode.
SDL_DisplayMode now includes the pixel size, the screen size and the relationship between the two. For example, a 4K display at 200% scale could have a pixel size of 3840x2160, a screen size of 1920x1080, and a display scale of 2.0.
Fixes DPI awareness of testdrawchessboard (previously, the surface was
being created in points instead of pixels, resulting in the demo app
only drawing in a corner of the screen on High-DPI displays)
*_CreateWindowFramebuffer()/*_UpdateWindowFramebuffer(): are updated
to use SDL_GetWindowSizeInPixels instead of SDL_GetWindowSize() or
window->w/window->h.
Most of the _CreateWindowFramebuffer backends are untested except
for Windows.
Fixes#7047
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
* 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
I ran this script in the include directory:
```sh
sed -i '' -e 's,#include "\(SDL.*\)",#include <SDL3/\1>,' *.h
```
I ran this script in the src directory:
```sh
for i in ../include/SDL3/SDL*.h
do hdr=$(basename $i)
if [ x"$(echo $hdr | egrep 'SDL_main|SDL_name|SDL_test|SDL_syswm|SDL_opengl|SDL_egl|SDL_vulkan')" != x ]; then
find . -type f -exec sed -i '' -e 's,#include "\('$hdr'\)",#include <SDL3/\1>,' {} \;
else
find . -type f -exec sed -i '' -e '/#include "'$hdr'"/d' {} \;
fi
done
```
Fixes https://github.com/libsdl-org/SDL/issues/6575
* The header is no longer dependent on SDL build configuration
* The structures are versioned separately from the rest of SDL
* SDL_GetWindowWMInfo() now returns a standard result code and is passed the version expected by the application
* Updated WhatsNew.txt and docs/README-migration.md with the first API changes in SDL 3.0
Since #5602, SDL is intended to have the same ABI across the whole
major-version 2 cycle, so we should not check that the minor version
matches the one that was used to compile an application.
There are two checks that could make sense here.
The first check is that the major version matches the expected major
version. This is usually unnecessary and is not usually done (if we're
calling into the wrong library we'll likely crash anyway), but since we
have the information, we might as well continue to use it.
The second check is whether the version provided by the caller is
equal to or greater than a threshold version at which additional fields
were added to the struct. If it is, we should populate those fields;
if it is not, then we cannot. This is only useful on platforms where
additional fields have genuinely been added during the lifetime of
SDL 2, like Windows and DirectFB (but not X11).
This commit changes the first check to be consistent about only looking
at the minor version, while leaving the second check using SDL_VERSIONNUM
(which will be removed or widened in SDL 3, but it's fine for now).
Resolves: https://github.com/libsdl-org/SDL/issues/5711
Fixes: cd7c2f1 "Switch versioning scheme to be the same as GLib and Flatpak"
Signed-off-by: Simon McVittie <smcv@collabora.com>
