Georges Basile Stavracas Neto d1d3ac6b20 clutter/stage: Use multiple frusta depending on the redraw clip
The redraw clip region may contain multiple clip rectangles. We currently
only use the extents of this region, but having multiple frusta for each
rectangle is a better alternative, and will allow us to remove the extra
projection we currently do.

Make the clip frustum an array, with multiple frusta.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1489
2020-10-16 13:46:23 -03:00
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