What is up with the `quad-jpeg.tif` test file?

[L. E. Segovia]

Hoo-ho, legacy compression! This is going to be interesting to fix.

Filed bug: https://bugs.kde.org/show_bug.cgi?id=454116

amyspark

On 20/05/2022 06:22, Alvin Wong wrote:
> The 5.0.6 appimage tells me the file contains unsupported colour space.
> 
> On 20/5/2022 2:09, L. E. Segovia wrote:
>> According to file, that file is a YCbCr, JPEG-compressed TIF.
>>
>> Can you check with an old enough (say, 4.4.8 or 5.0) build, to see if 
>> it's got anything to do with my changes to TIFF (especially the ICC 
>> profiles)?
>>
>> amyspark
>>
>> On 19/05/2022 14:39, Alvin Wong wrote:
>>> Hi,
>>>
>>> In 
>>> https://invent.kde.org/graphics/krita/-/tree/master/plugins/impex/tiff/tests/data there is a test file called `quad-jpeg.tif`, which has been outside of the sources folder since it was first committed in https://websvn.kde.org/?limit_changes=0&view=revision&revision=814296, 13 years ago, which to me means it had never worked in Krita before. When opened on a recent build, it shows up pretty corrupted (see attachment).
>>>
>>> Is this something we should look into fixing? My quick search didn't 
>>> yield any related bug reports.
>>>
>>> Cheers,
>>> Alvin
>>>
>>>
>>

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