1.5.5 - Crash when quickly switching images
Posted: Sun Oct 08, 2023 6:20 am
win10x64 xnview mp 1.5.5 x64
If you quickly switch large (requiring some time to display) images in view mode, doing this very fastly alternately in the forward and reverse directions (several images forward and several images back at once), for example with the mouse wheel, then the program may crash. In my case, for this to happen, two options need to be enabled: ICC profiles and a high-quality zoom out algorithm (from bicubic to lanczos4). What's interesting is that this never happens in billinear mode, and it doesn't happen in xnview mp 0.98.2 (where ICC and lanczos4 can also be enabled). The jpeg resolution needs to be large enough so that each image takes about 0.5 seconds or longer to open.
If you quickly switch large (requiring some time to display) images in view mode, doing this very fastly alternately in the forward and reverse directions (several images forward and several images back at once), for example with the mouse wheel, then the program may crash. In my case, for this to happen, two options need to be enabled: ICC profiles and a high-quality zoom out algorithm (from bicubic to lanczos4). What's interesting is that this never happens in billinear mode, and it doesn't happen in xnview mp 0.98.2 (where ICC and lanczos4 can also be enabled). The jpeg resolution needs to be large enough so that each image takes about 0.5 seconds or longer to open.
Thanks to your detailed description I can reproduce 
