Great work! Thanks, Eduard (and others)!

Ryan

On 05/03/2018 01:06 PM, Eduard Braun wrote:
> (I'll split this from the previous thread "slow, sluggish drawing with
> pencil & calligraphy tool solved" which became quite lengthy with a
> title not really matching the topic anymore)
>
>
> Hi all,
>
> I did not have a lot of time to follow up on this lately but I've got
> some great news I want to share with you regarding the performance
> issues we were seeing in Inkscape master (especially on Windows due to
> extremely poor GTK3 rendering performance which got even worse when
> drawing native window decoration, i.e. GTK_CSD=0).
>
> Turns out a patchset for cairo (see [1]) greatly reduced the latency
> of the rendering pipeline giving Inkscape a huge boost. I just built
> Inkscape with the patched cairo and performance with GTK_CSD=0 is now
> even slightly higher than with GTK_CSD=1! Also the blocking behaviour
> is completely gone (i.e. UI always redraws properly with current
> unmodified master).
>
> Performance with master/gtk3 is still *a lot* lower than with
> 0.92.x/gtk2, so I hope we can continue to improve Inkscape code
> (Yale's changes already looked very promising and I think they were
> not directly related to the changes in cairo, i.e. could improve
> performance even more) and maybe even GTK3 code (there are some very
> recent developments [2] which might result in a completely overhauled
> OpenGL based backend for win32!) but with today's success I finally
> feel we have a realistic chance to make the next Inkscape fun to work
> with on Windows!
>
> Best Regards,
> Eduard
>
>
> [1] https://github.com/Alexpux/MINGW-packages/pull/3675
> [2] https://gitlab.gnome.org/GNOME/gtk/issues/105
>
>

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