El diumenge, 25 d’octubre de 2020, a les 10:19:44 CET, Matthias Möller va
escriure:
> Hi Okular Team,
>
> I very much like your recolor mode ("Configure" -> "Accessibility" ->
> check "Change Colors" -> select "Change Dark & Light Colors" in combobox).
>
> Unfortunately, scrolling a pdf in this mode is on my little notebook not
> that smooth, it is currently a bit sluggish.
>
> A quick little benchmark session yesterday[1] showed me, that there are
> some easy improvements left in the `PagePainter::recolor` function.
> Improvements, which are used for similar functions like
> `PagePainter::invertLightness`.
>
> Those changes lowered the runtime for the recolor function on my machine
> from around 30ms to 3ms. [1]
>
> I am very confident, that this will solve the small performance problem
> during scrolling on my notebook, as the recolor can now be done in >24fps.
>
>
> Attached to this E-Mail is also a patchfile with the small improvements.
Please create a Merge Request in https://invent.kde.org/graphics/okular
Cheers,
Albert
>
>
> Greets,
>
> Matthias M.
>
>
> [1] Benchmark Gist:
> https://gist.github.com/TinyTinni/235527ffba9489ed29f7ba558e13724f
>
>
>
