Why would xeyes generate a large number of rectangles in a composited environment? Are you talking about the initial expose?
On Thu, Sep 18, 2014 at 4:49 PM, Keith Packard <kei...@keithp.com> wrote: > Adam Jackson <a...@redhat.com> writes: > > > In attempting to get the Always mode of backing store working again, I > > felt the urge to clean the place up a bit. The most notable change here > > is removing the (questionable) optimization from exposure event > generation > > to emit a bounding-box event when faced with more than 25 rects in the > > exposed region. Given that toolkits already coalesce consecutive expose > > boxes, and that you'll never hit it in a composited environment anyway, > > the complexity doesn't seem justified. > > This was written to address shaped windows, which can still generate a > large number of rectangles, even in a composited environment. I think > xeyes was the original test case; a full-screen xeyes window has a > couple thousand rectangles, or about 64kB of data. > > I suspect an xeyes-specific optimization is not all that useful to keep > around, but I fear that some user somewhere is taking advantage of this... > > -- > keith.pack...@intel.com > > _______________________________________________ > xorg-devel@lists.x.org: X.Org development > Archives: http://lists.x.org/archives/xorg-devel > Info: http://lists.x.org/mailman/listinfo/xorg-devel > -- Jasper
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