[krita] [Bug 470862] Krita crashing when attempting to resize or move (using transform) a very big layer stack

2023-06-27 Thread Dmitry Kazakov 
https://bugs.kde.org/show_bug.cgi?id=470862

Dmitry Kazakov  changed:

   What|Removed |Added

  Latest Commit||https://invent.kde.org/grap
   ||hics/krita/-/commit/17cf66d
   ||4952274457d9a2560d674ccc68e
   ||aa66bd
 Status|CONFIRMED   |RESOLVED
 Resolution|--- |FIXED

--- Comment #2 from Dmitry Kazakov  ---
Git commit 17cf66d4952274457d9a2560d674ccc68eaa66bd by Dmitry Kazakov.
Committed on 27/06/2023 at 12:18.
Pushed by dkazakov into branch 'master'.

Fix a hangup when rendering a layer with shadow **and** transparency mask

If the transparency mask fully crops the processed area, then null
rect is returned. There is no need to add a shadow to a null rect,
because it will add a QRect(0,0,~20,~20) to **every** processed area,
effectively making **every** worker to process the entire image.

M  +1-1libs/image/layerstyles/kis_layer_style_projection_plane.cpp

https://invent.kde.org/graphics/krita/-/commit/17cf66d4952274457d9a2560d674ccc68eaa66bd

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[krita] [Bug 470862] Krita crashing when attempting to resize or move (using transform) a very big layer stack

2023-06-24 Thread YRH 
https://bugs.kde.org/show_bug.cgi?id=470862

YRH  changed:

   What|Removed |Added

 Ever confirmed|0   |1
 CC||yavn.w...@gmail.com
 Status|REPORTED|CONFIRMED

--- Comment #1 from YRH  ---
Thank you for the file attached in Dropbox, I can reproduce the bad behavior
(e.g. transformation taking a very long time to take an effect). To me the app
effectively hangs. I can reproduce this on Windows and Ubuntu 22.04 with Krita
5.1.5. When the transformation gets stuck, there's one CPU thread maxed at
100%, rest being idle. I had to kill Krita, as nothing happened for a long
time. Krita memory usage was around 2.5 GB, not growing.

To reproduce:

1. Download "15 to 19.kra"
2. Select the first layer group "15 sustainawhat"
3. Use transform tool to translate layers a bit. Press enter to accept.
4. Click an eye to hide the modified layer stack.
5. The progress dialog will show and get stuck.

One insight: I noticed that the layers in this folder have FX icon on them
(e.g. drop shadow effect). When I flattened these layers (e.g. to bake in the
effect), the transformation completed almost instantly. Due to this, I believe
the bug may be related to how these FX layers are transformed.

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