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diff --git a/zola-static/content/blog/sdl-native-wayland.md b/zola-static/content/blog/sdl-native-wayland.md new file mode 100644 index 0000000..ffa3fb8 --- /dev/null +++ b/zola-static/content/blog/sdl-native-wayland.md @@ -0,0 +1,21 @@ ++++ +title = "Forcing SDL3 to actually use Wayland on Wayland." +date = 2025-08-06 ++++ + +[SDL3](https://wiki.libsdl.org/SDL3/FrontPage) is a great platform abstraction layer. On Linux, it compiles with support for both [X Window System](https://www.x.org/wiki/) and [Wayland](https://wayland.freedesktop.org/). This is great because it makes your app compatible with just about any desktop environment and window manager. + +Here's the thing. X11 apps can still run under Wayland through the XWayland compatibility layer. In the [SDL3 documentation](https://wiki.libsdl.org/SDL3/README-wayland) it says that +> Wayland is a replacement for the X11 window system protocol and architecture and is favored over X11 by default in SDL3 + +This sounds great. Wayland is a replacement for X11 so I would rather use it instead of X with XWayland. Wayland native apps work better with my window manager, and behave more consistently. Unfortunately, in practice **SDL does not use Wayland**. My SDL windows open using X. I don't know if it's a problem with my environment, but here's how I fixed it (for c++). +```c++ +for (int i = 0; i < SDL_GetNumVideoDrivers(); i++) { + if (std::string(SDL_GetVideoDriver(i)) == "wayland") { + SDL_SetHintWithPriority(SDL_HINT_VIDEO_DRIVER, "wayland", SDL_HINT_OVERRIDE); + break; + } +} +``` +This code will explicitly enable Wayland if it is available. Thanks to my friend Riley for helping to figure it out. +> I've [asked about this issue](https://discourse.libsdl.org/t/is-wayland-really-default) on the SDL discourse. I'll update this post if there are any more details. |