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Windows ico files with multiple images are downsampled or not displayed

See original GitHub issue

--windows-icon-from-ico works, but seems to downsample the source image to an unsightly degree.

The following screenshot shows the problem, with the icon on the right generated by PyInstaller from the exact same source image:


The original image can be found here. Thanks!

python -m nuitka --version
Python: 3.8.7 (tags/v3.8.7:6503f05, Dec 21 2020, 17:43:54) [MSC v.1928 32 bit (Intel)]
Executable: C:\Users\biqqles\Documents\Python\Python38-32\python.exe
OS: Windows
Arch: x86

Issue Analytics

  • State:closed
  • Created 3 years ago
  • Comments:12 (9 by maintainers)

github_iconTop GitHub Comments

kayhayencommented, Feb 8, 2021

Ok, pushed it to factory as it works for me now, selecting any icon or all icons from your icon file just works. Didn’t yet document the new option for selecting single icons, that’s future work.

kayhayencommented, Feb 8, 2021

Thanks for the example. Nuitka surely doesn’t downsample, but Windows does. And Nuitka attempts to include all the icons, but maybe it fails in some way. I will use your example to find out what’s going on there.

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