Hi all, Some time ago I mentioned project Westfield and how it could be used to create an html5 wayland compositor.
Today I'm proving I was not lying :) I've recorded a short clip to demonstrate what it looks like: https://www.youtube.com/watch?v=2lyihdFK7EE >From the description: Html5 Wayland Javascript compositor running in the browser. > https://github.com/udevbe/greenfield > <https://www.youtube.com/redirect?q=https%3A%2F%2Fgithub.com%2Fudevbe%2Fgreenfield&v=2lyihdFK7EE&redir_token=iJXBVRRztaaoy5zr-75tiyOKckx8MTUxMTUzMTUzOUAxNTExNDQ1MTM5&event=video_description> > What > you see are native linux applications that are rendered inside the browser > using WebGL. This is done by encoding each application in real-time to a > h264 video stream. Each video frame is sent using UDP (webrtc) to the > browser where it is decoded and composited on the screen. Each individual > application is rendered inside an html5 canvas, which allows for extra > special effects to be added (css styling, layout, ...) The wayland > protocol is used to directly talk to the applications. This is implemented > using a custom wayland protocol library ( > https://github.com/udevbe/westfield > <https://www.youtube.com/redirect?q=https%3A%2F%2Fgithub.com%2Fudevbe%2Fwestfield&v=2lyihdFK7EE&redir_token=iJXBVRRztaaoy5zr-75tiyOKckx8MTUxMTUzMTUzOUAxNTExNDQ1MTM5&event=video_description>) > and an intermediate server side 'delegate'. Other perhaps noteworthy things: - Alpha channel support is provided by using a separate h264 stream where the alpha channel is first converted to gray-scale and then applied to the alpha channel on the browser side using a webgl shader. - pixman & libxkbcommon are used browser side by compilation to wasm (web assembly). - Each browser tab forks a separate isolated process on the server side - gstreamer is used to encode to h264 cheers, Erik
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