https://bugs.kde.org/show_bug.cgi?id=442972
Bug ID: 442972
Summary: Copy/Cut became very slow and bugged
Product: krita
Version: git master (please specify the git hash!)
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Layer Stack
Assignee: krita-bugs-n...@kde.org
Reporter: lynx.mw+...@gmail.com
Target Milestone: ---
SUMMARY
Using Copy (Ctrl+C) or Cut (Ctrl+X) on a single layer became a lot slower,
taking easily 3-4 seconds even on smallish images, while it used to be pretty
much instant. It does not seem to matter if you have a selection or how big
that selection is, it's always slow.
Also, when there is something in the clipboard from such an operation, creating
a new image (Ctrl+N) takes very long to open the dialog too, plus the image
size in "Create from Clipboard" is wrong, it's always the whole document size
from where you copied, not the expected size of the copied/cut portion.
Note that the 5.0 branch is no affected, it must be something newer, possibly
the merge of "Operations on multiple layers/groups" (!888)
STEPS TO REPRODUCE
1. Create an image, something like screen resolution will do
2. Select a small portion of it with any selection tool
3. Cut the selection (Ctrl+X)
4. Open "New Image" dialog (Ctrl+N)
5. Go to "Create from Clipboard" section
OBSERVED RESULT
Step 3 and 4 take unusually long.
Step 5 does not give the correct image size (compared to Krita 4.x) but the the
image size created in Step 1.
Also, if you close the current document between Step 3 and 4, krita will even
crash with:
ASSERT (krita): "hash != KeyTraits::NullHash" in file
(...)/libs/image/3rdparty/lock_free_map/leapfrog.h, line 161
SYSTEM INFORMATION
Krita
Version: 5.1.0-prealpha (git 0a92c54)
Languages: en_US, en, en_US, en, en_US, en, en_US, en, en_US, en
Hidpi: true
Qt
Version (compiled): 5.15.3
Version (loaded): 5.15.3
OS Information
Build ABI: x86_64-little_endian-lp64
Build CPU: x86_64
CPU: x86_64
Kernel Type: linux
Kernel Version: 5.4.0-86-generic
Pretty Productname: Ubuntu 20.04.3 LTS
Product Type: ubuntu
Product Version: 20.04
Desktop: KDE
OpenGL Info
Vendor: "NVIDIA Corporation"
Renderer: "GeForce GTX 960/PCIe/SSE2"
Version: "4.6.0 NVIDIA 460.91.03"
Shading language: "4.60 NVIDIA"
Requested format: QSurfaceFormat(version 3.0, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24,
redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8,
stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer,
swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile
QSurfaceFormat::CompatibilityProfile)
Current format: QSurfaceFormat(version 4.6, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24,
redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8,
stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer,
swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile
QSurfaceFormat::CompatibilityProfile)
Version: 4.6
Supports deprecated functions true
is OpenGL ES: false
QPA OpenGL Detection Info
supportsDesktopGL: true
supportsOpenGLES: true
isQtPreferOpenGLES: false
Hardware Information
GPU Acceleration: auto
Memory: 15952 Mb
Number of Cores: 4
Swap Location: /tmp
Current Settings
Current Swap Location: /tmp
Current Swap Location writable: true
Undo Enabled: true
Undo Stack Limit: 150
Use OpenGL: true
Use OpenGL Texture Buffer: true
Disable Vector Optimizations: false
Disable AVX Optimizations: false
Canvas State: OPENGL_SUCCESS
Autosave Interval: 900
Use Backup Files: true
Number of Backups Kept: 1
Backup File Suffix: ~
Backup Location: Same Folder as the File
Backup Location writable: false
Use Win8 Pointer Input: false
Use RightMiddleTabletButton Workaround: false
Levels of Detail Enabled: false
Use Zip64: false
Display Information
Number of screens: 1
Screen: 0
Name: DP-0
Depth: 24
Scale: 1
Resolution in pixels: 2560x1440
Manufacturer: BNQ
Model: BenQ PD2705Q-
Refresh Rate: 59.9506
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