https://bugs.freedesktop.org/show_bug.cgi?id=86675

--- Comment #15 from Tomaz Vajngerl <[email protected]> ---
Ups.. I commited a fix under fdo#82870 and not this bug as I intended. Still
this requires an explanation as it doesn't actually fix this or fdo#82879 bug.

There indeed was a bug in scale super which made "bilinear" scaling into
"nearest neighbor" like scaling introduced in [1] but in a later commit [2] we
reverted the fix that pre-scaled the images with our built-in scaler - instead
of that a fast native "nearest neighbor" scaler is used. So indeed this is the
issue Adolfo was talking about which now makes this bug a duplicate of [3]. 

I fixed the issue with super scaler in master by first reverting [2] and
looking for the cause of the low quality. 

fdo#82870 is also a duplicate of this and [3] bug.. 

[1]
http://cgit.freedesktop.org/libreoffice/core/commit/?id=1b23e46051d8cc7c01fd8b4d0ea51bfec145db8e

[2]
http://cgit.freedesktop.org/libreoffice/core/commit/?id=ee36fc7add892690c95a969530ecdcfc1bc9decc

[3] https://bugs.freedesktop.org/show_bug.cgi?id=74124

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