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Author SHA1 Message Date
David Edmundson d7664a6ef1 Support wayland fractional scale protocol
The new protocol adds support for more native communication of
fractional scaling.

Everything in the wayland backend already existed only our fractional
scale was calculated implicitly through a combination of output size
guesswork for fullscreen windows.

This new protocol makes that explicit, providing a more robust solution
and a solution for non-fullscreen surfaces. The fallback code is still
left in place for now whilst compositors gain support.
2022-11-29 16:37:02 -05:00