Bug 209630

Summary: White page rendered when zooming
Product: [Applications] okular Reporter: Benoît Jacob <jacob.benoit.1>
Component: generalAssignee: Okular developers <okular-devel>
Status: RESOLVED DUPLICATE    
Severity: normal    
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Benoît Jacob 2009-10-06 14:25:22 UTC 
Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

At high zoom levels, when adjusting the zoom level, Okular first draws a
white page, "erasing" the previously rendered page, before rendering the actual
result. This seems useless, and distracting.

This is very strange:
I'm at 200% zoom level.
I zoom up   to 250%. Good: no white page rendered.
I zoom up   to 300%. Good: no white page rendered.
I zoom up   to 350%. BAD:  WHITE PAGE RENDERED
I zoom down to 300%. BAD:  WHITE PAGE RENDERED
I zoom down to 250%. BAD:  WHITE PAGE RENDERED
I zoom down to 200%. Good: no white page rendered.

Just a wild guess, does this per chance happen whenever Okular has to re-allocate a buffer?
Comment 1 Albert Astals Cid 2009-10-06 19:15:17 UTC 
The same thing than bug 209632

*** This bug has been marked as a duplicate of bug 209632 ***