Add wayland support to devdraw

[majiru]

There isn't a great way to move the mouse that I've found, so that is left unimplemented. Everything else seems to work fairly well under sway, and I would believe this to hold true for most other wlroots compositors. I would be interested in reports for those running the wayland variants of gnome of KDE, I have been unable to test under those compositors.

[The-King-of-Toasters]

It's no XWarpPointer, but it might be worth checking out the relative-pointer and pointer-constraints extensions.

[The-King-of-Toasters]

I cannot run devdraw, as it immediately exits with threads in main proc exited w/o threadmaybackground. I'm running sway 1.6.1+wlroots 0.14.1-2 on Arch Linux. Note that I can run your wayland patch for drawterm.

[fhs]

Seem to be working in sway after the following change. A bit disappointed it doesn't handle scaling on high dpi display -- that's the main reason I'd want to use wayland natively.

diff --git a/src/cmd/devdraw/wl-screen.c b/src/cmd/devdraw/wl-screen.c
index 3710b43c..e5a32ead 100644
--- a/src/cmd/devdraw/wl-screen.c
+++ b/src/cmd/devdraw/wl-screen.c
@@ -149,6 +149,7 @@ gfx_main(void)
 {
        clientruning = 1;
        gfx_started();
+       for(;;) sleep(3600*1000);
 }

 Memimage*

[hdonnay]

I embarked on the same quest before seeing this PR, and have pushed my work to #550. It's stable enough for my daily use, just acme maximized on a monitor all day. It's even got pointer warping working, although I've only tested that under GNOME.