Wrong aspect ratio in retro arch 1.7.5 / 1.7.6 for 320x200 Games

[retrorepair]

Hi just wanted to migrate this thread:

https://forums.libretro.com/t/crt-switch...em/20990/3

The problem in short: the aspect ratio for games that use 320x200 (for example DOS Games (DosBox) or ScummVM) is apparently not calculated correctly anymore what causes the image not to expand to whole screen width. (It does expand but not far enough)

Here is the log output for a game where the problem occurs:

************ CRTSwitchRes Debug output ************

Code:

CRT Resolution: 3840x200
Refresh Rate: 60.000000

---

[libretro INFO] Resolution changed 640x400 => 320x200 [INFO] Environ SET_GEOMETRY. [INFO] SET_GEOMETRY: 320x200, aspect: 1.333. [INFO] Paused.

Would be grateful for advice, help,
best

I believe I've located the issue and fixed it, just waiting for the PR to be merged.