Wayland Experiments

This repo contains the results of my personal experiments with writing a first Wayland client.

The experiments are roughly based on an old Wayland Client Programming Tutorial, but updated to use xdg_shell instead of wl_shell.

The main purpose of these experiments was to get a basic barebones client running that can at least create "a window".

Later I have extended these clients to experiment with the wlr screencopy and export-dmabuf protocols, and especially around how to handle DMA-BUFs.

Dependencies

connect.c: connect and disconnect to Wayland
registry.c: list registered global interfaces, and get handle to compositor
surface.c: create a surface
xdg_surface.c: create an XDG surface and toplevel
application.c: create a shm pool and buffer, and configure the window
fractional_scale_checkerboard.c: render a pixel checkerboard in a client that supports fractional scale
egl.c: create an egl window and configure a window, rendering a yellow screen
screencopy_shm.c: capture one frame with screencopy and display it using a shm buffer
screencopy_dmabuf.c: capture one frame with screencopy and display it using a dmabuf buffer
screencopy_shm_egl.c: capture one frame with screencopy using a shm buffer, upload it to egl, and display it
screencopy_dmabuf_egl.c: capture one frame with screencopy using a dmabuf buffer, import it to egl, and display it
export_dmabuf.c: capture one frame with export-dmabuf and display it
export_dmabuf_egl.c: capture one frame with export-dmabuf, import it into egl, and display