A Simple Wayland Client

CPU rendering for the soul

Requires:

• Wayland libraries, ensure pkg-config --libs wayland-client prints something like: -lwayland-client, and that /usr/share/include contains wayland-client.h

• A Wayland compositor. Weston is the most reliable. It can by run in an X window (via weston command), or use a TTY and run weston or weston-launch. Gnome on wayland for GNOME >= 3.14 can be used.

• Both wl_shell and xdg_shell (v5) are supported. I have yet to update it to zxdg_shell_v6.

• A C compiler that supports gnu99.

• A copy of xdg-shell.xml. I have included a copy from the wayland-protocols git.

Compilation

make

Running

Ensure you have a running wayland compositor. ($WAYLAND_DISPLAY and $XDG_RUNTIME_DIR are set, and there is a unix socket at $XDG_RUNTIME_DIR/$WAYLAND_DISPLAY)

Then run ./simple.

If successful you should have semitransparent window with a rendering of the mandelbrot set.

Notes

This can be very CPU intense. You can also modify the code to use metaballs demo instead of the mandelbrot. But this will require per frame rendering.

It currenlty will ignore more than 1 screen. Which shouldn't be too much of a problem. (We only use the screen info to set the maximum window size)

Todo

• Code layout. There is horrible mess everywhere.
• Some sort of commentary of what is going on.
• Allowing more intuitive switching to meta-balls example. (Currenlty remove the #define BROT from buffer.c)