SUMMARY Cannot open GIMP XCF files especially when color depth is higher than 8 bits as described by Gilles Caulier from Digikam STEPS TO REPRODUCE 1. Open the following gimp image from Digikam I cannot attach the file since it much larger than 4mb. Here's the link https://www.sritch.com/pages/cares-20170212-6640.xcf (96Mb) OBSERVED RESULT (quote from Gilles Caulier) .......................... Hi, Yes problem is fully reproducible here. the Unit test from digiKam trying to load image report a message from the KImageIO XCF plugin as file is not recognized : digikam.dimg: "cares-20170212-6640.xcf" : "QIMAGE" file identified digikam.dimg.qimage: Can not load " "cares-20170212-6640.xcf" " using DImg::DImgQImageLoader! digikam.dimg.qimage: Error message from loader: "Unable to read image data" <=====!!!!!!! digikam.dimg: "cares-20170212-6640.xcf" : Unknown image format !!! This is a problem in the KDE plugin. The problem is the same for both shared files. Note that Exiftool is able to load XCF metadata : [gilles@localhost dimg]$ exiftool cares-20170212-6640.xcf ExifTool Version Number : 12.00 File Name : cares-20170212-6640.xcf Directory : . File Size : 98 MB File Modification Date/Time : 2021:05:26 05:13:00+02:00 File Access Date/Time : 2021:05:26 05:37:17+02:00 File Inode Change Date/Time : 2021:05:26 05:37:05+02:00 File Permissions : rw-r--r-- File Type : XCF File Type Extension : xcf MIME Type : image/x-xcf XCF Version : 12 Image Width : 4781 Image Height : 3586 Color Mode : RGB Color Compression : RLE Encoding X Resolution : 300 Y Resolution : 300 Tattoo : 2 Units : Inches Metadata Tag Name : Exif.Canon.0x0003 Metadata Tag : 0 0 0 0 Comment : Image Size : 4781x3586 Megapixels : 17.1 So, please report this problem to KDE bugzilla component "frameworks-kimageformats". Look like there are already some files open about XCF support, and especially when color depth is higher than 8 bits. https://bugs.kde.org/buglist.cgi?bug_status=UNCONFIRMED&bug_status=CONFIRMED&bug_status=ASSIGNED&bug_status=REOPENED&component=general&list_id=1874818&product=frameworks-kimageformats&query_format=advanced Best Gilles Caulier ......................... SOFTWARE/OS VERSIONS OS: Manjaro Linux x86_64 Host: MS-7693 2.0 Kernel: 5.10.36-2-MANJARO Uptime: 3 hours, 13 mins Packages: 1542 (pacman) Shell: bash 5.1.8 Resolution: 2560x1080 DE: Plasma 5.21.5 WM: KWin WM Theme: Breeze Theme: Breath2 [Plasma], Breeze [GTK2/3] Icons: breath2 [Plasma], breath2 [GTK2/3] Terminal: konsole Terminal Font: Noto Mono 14 CPU: AMD FX-8350 (8) @ 4.000GHz GPU: AMD ATI Radeon RX 470/480/570/570X/580/580X/590 Memory: 1037MiB / 11992MiB Qt 5.15.2 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 10.2.0) on "xcb" OS: Manjaro Linux [linux version 5.10.36-2-MANJARO] Architecture: x86_64; features: SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX Thank you
That file has two features we don't support: * It identifies itself as version 12 and we fail if version > 11 * It has a layer of type RGB_GIMAGE with bpp 6 and we only support RGB_GIMAGE layers of bpp3 I stopped debugging there, needs someone to put some time into it. Martin you did the last big-ish refactor in the XCF loader, fancy having a go? Or maybe you Daniel?
FWIW https://gitlab.gnome.org/GNOME/gimp/-/blob/master/devel-docs/xcf.txt has a relatively good description of the format
There are more things to do. I tried to save some XCF files from development GIMP 2.99.7 When option "Save this XCF file with better but slower compression" is selected, kimg_xcf will not load it. We should also load color profile and set it to QImage via QColorSpace class.
Hi, I just checked with digiKam 7.8.0 using KF5 5.95, and a XCF file saved with 16 bits as integer do not render a thumbnail in icon view. Best Gilles Caulier
(In reply to caulier.gilles from comment #4) > I just checked with digiKam 7.8.0 using KF5 5.95, and a XCF file saved with > 16 bits as integer do not render a thumbnail in icon view. With the 2013 patches (https://invent.kde.org/frameworks/kimageformats/-/merge_requests/171) the plugin is able to render images with color depth greater than 8 bits. Unfortunately the "attached" image is no longer accessible. Does it work now?
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME. For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging. Thank you for helping us make KDE software even better for everyone!
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.