Soulcalibur renders at lower resolution than 480p when Full Framebuffer is enabled.

[levonnn]

Please Note: This form is the minimum required information for submitting bugs.
Removing this form may lead to your issue being closed until it is completed.

Platform / OS / Hardware:
Win 10 64

Flycast version:
1.17.0 (15617c1)

Hardware:
RX580, i7 920, 16 Gb RAM

Description of the Issue
All setting on default. If Full fremebuffer emulation is enabled, the entire game is rendered in, what feels like, 240p instead of 480p.

Screenshots

[flyinghead]

This is correct: in 480i mode, the game uses a 1/2 vertical scale factor to convert from 480p to 240p.
This doesn't happen in VGA mode.