4:3 in fullscreen stretch mode not working in macOS with Open GL 3.0 rendering

[almeath]

The title of this issue is self-explanatory.

In macOS, it appears that the 4:3 setting has no effect when using Open GL 3.0 rendering in fullscreen mode.

The bug does not occur when using Qt (software) or Qt (Open GL) rendering (with same config settings enabled).

Here is windowed mode with OpenGL 3.0 displaying a 640x480 screen:

And here is the fullscreen mode, despite all the 4:3 options being enabled:

I am using the following settings in the cfg file:

[General]
vid_renderer = qt_opengl3
scale = 3
video_filter_method = 0
video_fullscreen_scale = 1
dpi_scale = 0
vid_resize = 2
window_coordinates = 640, 480, 0, 0
window_fixed_res = 640x480
force_43 = 1

• OS: macOS 10.14.6 (Mojave)
• 86Box version: v3.4.1 [build 3738] [01d6407]
• Build information: downloaded from 86Box releases on Github, dated 21 April 2022