Xfwm4 compositor zooming patch

Alistair Buxton a.j.buxton at gmail.com
Tue Nov 12 14:33:49 CET 2013

On 12 November 2013 12:36, Yves-Alexis Perez <corsac at debian.org> wrote:
> On Tue, 2013-11-12 at 11:22 +0000, Alistair Buxton wrote:
>> The changes are relatively simple - it just applies a transformation
>> and filter to the final XRender call which copies the composed buffer
>> to the display. There should be negligible overhead if the display
>> isn't zoomed. So far I have one report that it works and one report
>> that it doesn't.
> Seems to works fine for me. Never tried any other zooming plugin, so I
> can't comment on differences. At maximum zoom you can clearly see the
> pixels, but I'm not sure it's possible to do anything about that :)

This is intentional. At < 4x zoom, "good" filtering is used to produce
smooth output. At 4x or greater, the "fast" filter is used to show
pixels. One of the use cases is zooming to look at individual pixels
when eg working on graphics, css/html etc.

Good to hear it works anyway, thanks.

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