Bug 369095 - Lazybrush assertion when a key stroke has 0 opacity
Summary: Lazybrush assertion when a key stroke has 0 opacity
Status: RESOLVED FIXED
Alias: None
Product: krita
Classification: Applications
Component: Filter Layers (show other bugs)
Version: git master (please specify the git hash!)
Platform: Compiled Sources Linux
: NOR normal
Target Milestone: ---
Assignee: Krita Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-09-20 02:47 UTC by Nicholas LaPointe
Modified: 2016-09-21 14:03 UTC (History)
0 users

See Also:
Latest Commit: http://commits.kde.org/krita/87bb1079c1aa68ed4334f1618161b4d9c1a4887d
Version Fixed In:

Attachments
Document with 0 opacity stroke (513.54 KB, application/x-krita)
2016-09-20 02:48 UTC, Nicholas LaPointe 		Details
Document without 0 opacity stroke (511.79 KB, application/x-krita)
2016-09-20 02:48 UTC, Nicholas LaPointe 		Details
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Description Nicholas LaPointe 2016-09-20 02:47:32 UTC 
Adding a key stroke that has 0 opacity and then updating the colorize mask will sometimes cause Krita to exit with the following assertion:
"m_mainArea.contains(m_bLabelArea)" in file src/libs/image/lazybrush/kis_lazy_fill_graph.h, line 360

I am unable to reliably repeat this using any arbitrary image, but it always happens with lazybrush_assert_with0opacity.kra for me. lazybrush_assert_before0opacity.kra is the same file, but without the 0 opacity stroke.

Reproducible: Sometimes

Steps to Reproduce:
Using lazybrush_assert_with0opacity.kra
1. Update colorize mask

Using lazybrush_assert_before0opacity.kra
1. Add a stroke to the colorize mask using 0 opacity
2. Update colorize mask
Comment 1 Nicholas LaPointe 2016-09-20 02:48:33 UTC 
Created attachment 101194 [details]
Document with 0 opacity stroke
Comment 2 Nicholas LaPointe 2016-09-20 02:48:56 UTC 
Created attachment 101195 [details]
Document without 0 opacity stroke
Comment 3 Dmitry Kazakov 2016-09-21 14:03:26 UTC 
Git commit 87bb1079c1aa68ed4334f1618161b4d9c1a4887d by Dmitry Kazakov.
Committed on 21/09/2016 at 14:03.
Pushed by dkazakov into branch 'master'.

Fix crash in Colorize Mask when painted with 0 opacity

Well, there is no reason to try to fill empty scribbles
Fixes T3811

M  +12   -0    libs/image/lazybrush/kis_multiway_cut.cpp

http://commits.kde.org/krita/87bb1079c1aa68ed4334f1618161b4d9c1a4887d