Bug 497516 - Lossless JXL files transcoded from PNG sometimes render incorrectly
Summary: Lossless JXL files transcoded from PNG sometimes render incorrectly
Status: RESOLVED FIXED
Alias: None
Product: frameworks-kimageformats
Classification: Frameworks and Libraries
Component: general (show other bugs)
Version: 6.8.0
Platform: Fedora RPMs Linux
: NOR normal
Target Milestone: ---
Assignee: Alex Merry
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-12-15 18:38 UTC by Alastor Tenebris
Modified: 2024-12-16 11:08 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
Gwenview vs Eye of Gnome (2.53 MB, image/png)
2024-12-15 18:38 UTC, Alastor Tenebris 		Details
The original PNG (1.32 MB, image/png)
2024-12-15 18:39 UTC, Alastor Tenebris 		Details
The converted JXL file (1016.92 KB, image/jxl)
2024-12-15 18:39 UTC, Alastor Tenebris 		Details
View All Add an attachment

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Description Alastor Tenebris 2024-12-15 18:38:23 UTC 
Created attachment 176656 [details]
Gwenview vs Eye of Gnome

SUMMARY
JXL files that have been converted from PNGs sometimes render zoomed in and distorted

STEPS TO REPRODUCE
1. Open a JXL file

OBSERVED RESULT
The image is distorted

EXPECTED RESULT
The image render correctly

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora KDE 41
KDE Plasma Version: 6.2.4
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.1

ADDITIONAL INFORMATION
This result can also be reproduced in the latest flatpak release.
Comment 1 Alastor Tenebris 2024-12-15 18:39:05 UTC 
Created attachment 176657 [details]
The original PNG
Comment 2 Alastor Tenebris 2024-12-15 18:39:29 UTC 
Created attachment 176658 [details]
The converted JXL file
Comment 3 Alastor Tenebris 2024-12-16 05:04:36 UTC 
Updating to Frameworks 6.9.0 fixed it.