Created attachment 127450 [details] Sample file Okular has some issues with .djvu It opens the file, but some pages aren't read/displayed properly. See the attached file. Compare with Document Viewer. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Ubuntu 18.04 Okular Version: 19.12.3
Created attachment 127451 [details] An empty page Okular does not like empty pages (like page 4 from the attached document). Those pages can be extracted with djvused j.djvu -e 'select 4; save-page p04.djvu' Not critical but sometimes it ruins the comfort of reading.
i don't understand the problem. Can you be more clear?
(In reply to Albert Astals Cid from comment #2) > i don't understand the problem. > > Can you be more clear? If you open the initial test file page 4 will be filled with garbage from the previous pages. My test page (extracted from the initial file) is half white/half black. For some reason, QImage::fill in kdjvu.cpp:499 cannot fill the whole page with Qt::white.
Created attachment 127472 [details] Rendering of the page 8 of the original document
(In reply to Yuri Chornoivan from comment #3) > (In reply to Albert Astals Cid from comment #2) > > i don't understand the problem. > > > > Can you be more clear? > > If you open the initial test file page 4 will be filled with garbage from > the previous pages. My test page (extracted from the initial file) is half > white/half black. > > For some reason, QImage::fill in kdjvu.cpp:499 cannot fill the whole page > with Qt::white. I don't get any garbage it's all correctly white here. Oh, actually i get garbage if i increase the zoom enough. Interesting.
https://invent.kde.org/kde/okular/-/merge_requests/155
(In reply to Albert Astals Cid from comment #6) > https://invent.kde.org/kde/okular/-/merge_requests/155 Tested on my djvu collection. No regressions found. All empty pages are shown white. Thanks.
Git commit da24829ee2b425185b9e9c0ed7582d37ce1c9bd4 by Albert Astals Cid. Committed on 12/04/2020 at 15:37. Pushed by aacid into branch 'release/20.04'. djvu: Fix garbage on empty pages at "high" zoom levels M +4 -7 generators/djvu/kdjvu.cpp https://invent.kde.org/kde/okular/commit/da24829ee2b425185b9e9c0ed7582d37ce1c9bd4