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Frank Praznik 553fc5fe0e wayland: Expose displays in a deterministic order, and attempt to better handle selecting a primary display. 
Wayland can expose displays in any arbitrary order, and doesn't have the native concept of a primary display. However, there are games that presume that the first listed display is the primary, which can lead to problems if that output isn't necessarily the ideal one, as they may use that display to build a resolution list or as the default fullscreen output. This sorts displays by position, then attempts to find the primary display, first by querying the explicit ordering hint, then the GNOME DBus property, then tries to determine the 'best' display according to the criteria that is generally ideal for games and media playback.

The makes the list of displays deterministic, as long as the desktop configuration remains static, with a reasonably appropriate one prioritized as primary, even if there is no explicit way to retrieve the primary display. In the case where a user has a particularly esoteric physical display configuration, the new hint enables explicitly overriding the sorting and selection logic, allowing the entire display order to be customized, if necessary.
2024-10-15 13:52:35 -04:00
..
doxyfile Don't automatically free temporary memory, let the application call SDL_FreeTemporaryMemory() when it's ready. 2024-07-26 10:05:03 -07:00
README-android.md Add parametrized build script 2024-10-14 21:30:48 +02:00
README-cmake.md Use SDL_bool instead an int return code in the SDL API 2024-08-27 10:31:46 -07:00
README-contributing.md Document the SDL-specific custom ci commands 2024-08-31 13:16:51 +02:00
README-documentation-rules.md SDL_platform_defines.h: Added documentation, and a little whitespace. 2024-09-06 15:09:29 -04:00
README-dynapi.md Removed SDL_bool in favor of plain bool 2024-09-18 08:32:30 -07:00
README-emscripten.md docs/emscripten: --embed-file does not accept a '=' 2024-08-20 16:04:58 +00:00
README-gdk.md Rename functions in SDL_system.h to match SDL 3.0 naming convention 2024-07-15 16:27:48 -07:00
README-git.md Sync SDL3 wiki -> header 2024-03-24 18:34:24 +00:00
README-highdpi.md Sync SDL3 wiki -> header 2024-10-11 20:51:42 +00:00
README-ios.md Removed SDL_IPHONE_MAX_GFORCE 2024-10-01 18:00:22 -07:00
README-kmsbsd.md docs: Convert everything to Unix-style endlines. 2023-11-29 11:29:57 -05:00
README-linux.md docs: Convert everything to Unix-style endlines. 2023-11-29 11:29:57 -05:00
README-macos.md Use SDL_bool instead an int return code in the SDL API 2024-08-27 10:31:46 -07:00
README-main-functions.md main: SDL_AppQuit() now reports the result value. 2024-09-29 23:24:04 -04:00
README-migration.md Old env vars as fallback for SDL_VIDEO_DRIVER + SDL_AUDIO_DRIVER #11115 2024-10-12 08:47:02 -07:00
README-n3ds.md docs: Convert everything to Unix-style endlines. 2023-11-29 11:29:57 -05:00
README-ngage.md docs: Convert everything to Unix-style endlines. 2023-11-29 11:29:57 -05:00
README-platforms.md docs: Convert everything to Unix-style endlines. 2023-11-29 11:29:57 -05:00
README-porting.md winrt: Removed WinRT/Windows Phone/UWP support. 2024-09-06 13:28:39 -04:00
README-ps2.md JANITORIAL: Fix typos in comments in various files (#10058) 2024-06-19 07:13:46 -07:00
README-psp.md docs: Convert everything to Unix-style endlines. 2023-11-29 11:29:57 -05:00
README-raspberrypi.md docs: Convert everything to Unix-style endlines. 2023-11-29 11:29:57 -05:00
README-riscos.md docs: Convert everything to Unix-style endlines. 2023-11-29 11:29:57 -05:00
README-strings.md Removed temporary memory from the API 2024-07-26 20:59:14 -07:00
README-touch.md touch: Replace GetNumTouchDevices/GetTouchDevice with a single function. 2023-11-29 20:50:44 -05:00
README-versions.md docs: Convert everything to Unix-style endlines. 2023-11-29 11:29:57 -05:00
README-visualc.md Removed SDL_RendererFlags 2024-05-13 15:06:11 -07:00
README-vita.md Added thread-safe environment functions 2024-09-13 22:14:54 -07:00
README-wayland.md wayland: Expose displays in a deterministic order, and attempt to better handle selecting a primary display. 2024-10-15 13:52:35 -04:00
README-windows.md winrt: Removed WinRT/Windows Phone/UWP support. 2024-09-06 13:28:39 -04:00
README.md winrt: Removed WinRT/Windows Phone/UWP support. 2024-09-06 13:28:39 -04:00
release_checklist.md Updated release_checklist.md for SDL 3.0 2023-01-04 23:47:01 -08:00

README.md

Simple DirectMedia Layer

https://www.libsdl.org/

Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games.

SDL officially supports Windows, macOS, Linux, iOS, and Android. Support for other platforms may be found in the source code.

SDL is written in C, works natively with C++, and there are bindings available for several other languages, including C# and Python.

This library is distributed under the zlib license, which can be found in the file "LICENSE.txt".

Information on building SDL with CMake is available in README-cmake.md

The best way to learn how to use SDL is to check out the header files in the "include" subdirectory and the programs in the "test" subdirectory. The header files and test programs are well commented and always up to date.

Information on reporting bugs and contributing is available in README-contributing.md

More documentation and FAQs are available online at the wiki

If you need help with the library, or just want to discuss SDL related issues, you can join the SDL Discourse, which can be used as a web forum or a mailing list, at your preference.

If you want to report bugs or contribute patches, please submit them to our bug tracker

Enjoy!

Sam Lantinga mailto:slouken@libsdl.org