drisw/kopper: hook up damage regions
this plumbs damage regions from the API all the way through gallium such that x11/wayland/whatever are able to send damage updates to the display server
fixes #7619 (closed) and #10537 (closed)
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this plumbs damage regions from the API all the way through gallium such that x11/wayland/whatever are able to send damage updates to the display server
fixes #7619 (closed) and #10537 (closed)