Doesn't display high res images

[eddiezato]

QV (win11) can't display high res images after update with Qt6. Qt5 version works fine.

Example images can be found here.

[kanryu]

I was investigating the behavior of QuickViewer and Qt6 using the images you provided and found something interesting.

• Qt6 has a limit on the size of images that can be loaded
  • more precisely, the size of the on-memory bitmap
  • QImageReader::allocationLimit()
• limitation is 256MB
• This check was added in Qt6.
• Your image will be a 331MB bitmap, so it will be subject to the limit
• I'll add the ability to change this parameter in the next release of QuickViewer.

[eddiezato]

I tried to use setAllocationLimit in main.cpp. It works fine if opening image files, but crashes if opening folder or archive.

[kanryu]

I made it! :)

[eddiezato]

Well, it seems fixed. ~~But my builds with msys2/clang64 now always crash on opening archive files~~.