Not fully rendered pages with device pixels enabled

Bug #1635970 reported by Oli
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
qpdfview
Fix Released
Medium
Adam Reichold

Bug Description

Enabling the usage of device pixels option gives weird output. Although the quality of the rendered bits is much higher than without this option, only parts of the page are shown.

- Device pixels enabled and tiling disabled: https://paste.xinu.at/pE1B/
- Device pixels enabled and tiling enabled: https://paste.xinu.at/z105oj/

I'm using Dell XPS 13 but connected to 4K LG Monitor. I use xrandr to scale the output to a total of 5376x3024.

Revision history for this message
Adam Reichold (adamreichold) wrote :

Hello Oli,

thanks for taking the time to report this. It seems this was related to tiling after all, albeit in a way that broke non-unit device pixel ratios outright: The tile sub rects were not adjusted according to the device pixel ratio which is why only part of the page got rendered. Now in trunk, they are scaled as well so the whole page should be displayed.

Best regards, Adam.

Changed in qpdfview:
status: New → Incomplete
status: Incomplete → Fix Committed
importance: Undecided → Medium
assignee: nobody → Adam Reichold (adamreichold)
milestone: none → 0.4.17
Revision history for this message
Oli (c63) wrote :

Hej Adam,

I can confirm that this fixed both cases for me.

Thanks for the quick fix! :-)

Bests,
Oliver

Changed in qpdfview:
status: Fix Committed → Fix Released
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