https://bugs.documentfoundation.org/show_bug.cgi?id=137559
--- Comment #5 from Telesto <[email protected]> ---
Created attachment 167083
--> https://bugs.documentfoundation.org/attachment.cgi?id=167083&action=edit
Bibisect log
Bisected to:
author Luboš Luňák <[email protected]> 2020-10-06 22:14:36 +0200
committer Luboš Luňák <[email protected]> 2020-10-08 13:40:14
+0200
commit d18731f71c60cbb6c02cabb042004b1aa9454de8 (patch)
tree 36870456fc84f62b2ab85a3bad1971641856cbda
parent 47fda617fc4dad8273919227ca45ea3b8b61aea1 (diff)
track dirty areas for Skia drawing
Updates to the screen in raster mode aren't _that_ slow, in fact
it seems using SkRegion can make things slower because of manipulating
the region, but with SkIRect this could sometimes help a bit.
It also appears that StretchDIBits() that is used by the Windows
raster code doesn't work correctly if only a subset of the y-axis
range is specified, which reduces the usefulness.
https://cgit.freedesktop.org/libreoffice/core/commit/?id=d18731f71c60cbb6c02cabb042004b1aa9454de8
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