[Libreoffice-bugs] [Bug 104878] Impress works very slow with large sized GIF

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=104878

--- Comment #40 from Maris Nartiss <maris.nartiss at gmail.com> ---
(In reply to Armin Le Grand from comment #39)
> I tried on Win and Linux and both got significantly faster without skia.
> Indeed the prob is aged, but me and caolan did a lot of opts in that area -
> so to get the current state - an improvement over 2016 - at lest I had to
> switch away from skia. Please note that in it‘s current state it does no
> bufferings (as GDIplus and Cairo do), btw also not using transformations or
> direct line dashing - but main reasons for bitmap based stuff to be slower
> again is buffering of system-format bitmaps. Just my 2ct...
> There is always room for improving the git stuff, of course, when you know
> where we came from - it was just painted over timer-based without taking
> care of Z-Order and overlapping objects at all...

It is not skia related:
Version: 6.4.2.2
Build ID: 4e471d8c02c9c90f512f7f9ead8875b57fcb1ec3
CPU threads: 2; OS: Linux 5.5; UI render: default; VCL: x11; 
Locale: lv-LV (lv_LV.utf8); UI-Language: en-US
Calc: threaded

Thanks for reminding where we came from. Ahh, those good ol' times when opening
a presentation with animated GIF was NOT sending X11 down the drain... Sorry
for being emotional. Just spent 10 minutes waiting for VT1 to come up so I
could login as root and kill -9 LO Impress process and get my X11 session back
without a hard reboot.

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