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<base href="https://bugs.documentfoundation.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - Extreme lagging with SVG's containing gradients"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=139993">139993</a>
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<th>Summary</th>
<td>Extreme lagging with SVG's containing gradients
</td>
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<th>Product</th>
<td>LibreOffice
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>UNCONFIRMED
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>LibreOffice
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<th>Assignee</th>
<td>libreoffice-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>gellert.gyuris@gmail.com
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<pre>Created <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=169262" name="attach_169262" title="Test files for lagging with SVG gradients">attachment 169262</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=169262&action=edit" title="Test files for lagging with SVG gradients">[details]</a></span>
Test files for lagging with SVG gradients
I experience lagging during typing text when there is an inserted SVG.
1) No problem with other formats: I tested EMF, EPS, JPG, PNG, WMF, ODG, not
event with PDF.
2) As I researched the cause of the bug I found that it occurs when there is
gradient in the SVG.
3) Affected versions:
- LibreOffice 6.4.7.2: There is no problem with real graphics, but with
prepared SVG I can cause the lagging.
- LibreOffice 7.0.3.1; 7.0.4.2, 7.1.0.2; 7.2.0.0α: All are affected with real
graphics and there is an extreme lagging with prepared SVGs.
Step to reproduce:
- Open a new document
- Insert > Insert image... chose one attached SVG file.
- Start typing some text after inserted image. The characters appear very
slowly with lagging and they usually appear at the same time with a small or
big delay depending on how many gradient there is in SVG.
Test files:
Real graphics:
- LibreOffice logo.svg: No noticeable lagging with 6.4, but the lagging is
experienced with 7.0+.
- Ghostscript_Tiger.svg: Same as above.
Prepared SVG's for testing this bug:
- svg_objects.svg (There is no gradient, only transparency): No problem.
- svg_many_objects.svg (Lot of object without gradients): No problem.
- svg_many_objects_with_gradient (Only a few gradients): Lagging in all
versions.
- svg_many_objects_with_gradient.svg (Lot of object with gradients): Extreme
lagging, especially in 7.0+
I tested on Linux (Ubuntu 20.10, XOrg).</pre>
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