Window scaling not accurate in software mode

[Cooler-1]

Windowed mode does not scale properly in software mode. The window stays at 640x480, whereas in OpenGL mode it properly adjusts the size to 320x200, 320x240, 640x400, etc.

[Pedro-Beirao]

It scales properly for me in both software and opengl. Tested in Windows and MacOS.
What OS are you using? And please attach a video of this issue

[Cooler-1]

Windows 10

2024-11-18.13-46-45.mp4

[KernelLeak]

Would I be correct in saying that it's not so much the image not scaling properly, but the window changing it's size along with the resolution in OpenGL mode, but staying pretty much the same in software mode?

[Pedro-Beirao]

Ok I was wrong, I can reproduce. Thanks for the report.
The window size changes, but it doenst change to the correct selected size.

I had tested it with big changes (like 1080p -> 200p), so it seemed fine at first glance

For example
200p -> 400p makes the windows slightly bigger, but not double the size

[Pedro-Beirao]

Looking into the code, software is "correct". In order to not make a tiny (almost unusable) 200p window, it scales it to atleast 480p.
coelckers/prboom-plus@3a578e6

Note that you can still resize the window with your mouse to make it smaller.

I'll change OpenGL to do the same. Thanks for the report!

[Cooler-1]

I use Magpie to scale for CRT emulation and the window not being pixel accurate breaks it.

[Pedro-Beirao]

I use Magpie to scale for CRT emulation and the window not being pixel accurate breaks it.

Thats an interesting use case. @rfomin, seems like a good reason to allow initial window size of 200p. Shall I change this?

[rfomin]

I use Magpie to scale for CRT emulation and the window not being pixel accurate breaks it.

Thats an interesting use case. @rfomin, seems like a good reason to allow initial window size of 200p. Shall I change this?

Sure, I'm not against it.

Magpie seems good. We should probably add CRT emulation shaders at some point.