[Libreoffice-bugs] [Bug 113038] New: Working with hi-res image is extremely slow

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=113038

            Bug ID: 113038
           Summary: Working with hi-res image is extremely slow
           Product: LibreOffice
           Version: 5.4.2.2 release
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: minor
          Priority: medium
         Component: Writer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: ota at prosa.dk

Description:
When working with hi-res images the system is extremely slow. It is as if the
system works on the full uncompress image in full resolution instead of a
scaled down version of the same.



Steps to Reproduce:
1. New text document
2. Insert attached image
3. Write text



Actual Results:  
The program is now very slow.


Expected Results:
Same speed as if the image had been in low-res.

Looking at the memory and CPU usage it looks as if Writer is working on the
full-resolution image all the time.

It would be much preferable if Writer cached a version scaled for the current
need and worked on that; and only recomputed a new scaled version when the
image is resized or zoom is changed.

Microsoft Word has no problem using the hi-res image.




Reproducible: Always

User Profile Reset: No

Additional Info:
(Thanks for fixing the bug in 5.4.2.0, that made it impossible to work with
hi-res images at all).


User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36

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