[Digikam-devel] [digikam] [Bug 320107] Flip/Mirror operation doesn't flip/mirror the entirety of the picture (there is a strip left unmirrored)

[Nicofo]

https://bugs.kde.org/show_bug.cgi?id=320107

Nicofo <nicofo at tuxfamily.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|UPSTREAM                    |---

--- Comment #27 from Nicofo <nicofo at tuxfamily.org> ---
(In reply to Gilles Caulier from comment #26)
> Well, it's clear, it's definitively a libjpeg problem.
> 
> Please report this bug as UPSTREAM to libjpeg team (jpegturbo project is
> used everywhere now under Linux).

OK, I open that bug on jpegturbo: see
https://sourceforge.net/p/libjpeg-turbo/bugs/91/
Summary of that bug: this is NOT a libjpeg problem, it is the normal behaviour
and software using libjpeg must know that behaviour to handle this case. An
example is also given:
> It is incumbent upon user-level software to handle this case. For instance, whenever I try to transform an image using GraphicConverter on my Mac, it will pop up a dialog if the image dimensions don't fall on MCU boundaries, and I can choose from that dialog whether I want to trim the image or transform it using a lossy method (decompress/recompress.)
[see full explanation https://sourceforge.net/p/libjpeg-turbo/bugs/91/ ]

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