06623: Full Screen Brightness/Contrast/Gamma settings not working anymore

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06623	Interface	Minor	Always	Jul 10, 2017, 17:08	Jan 6, 2018, 07:55

Tester	rcoltrane	View Status	Public	Platform	MAME (Official Binary)
Assigned To	smf	Resolution	Fixed	OS	Windows Vista/7/8 (64-bit)
Status [?]	Resolved			Driver
Version	0.187	Fixed in Version	0.194	Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	06623: Full Screen Brightness/Contrast/Gamma settings not working anymore
Description	I'm trying to set my full screen gamma/brightness settings to make the screen of my TV to match with the in-game screen brightness/gamma. However, the full screen settings seems to be not working anymore. No matter which values I put in these settings, they aren't showing any difference on screen.
Steps To Reproduce	Start a game with -full_screen_gamma at 1.8 and -full_screen_brightness at 1.8 . You won't see any changes on screen.
Additional Information
Github Commit

Flags
Regression Version	0.175
Affected Sets / Systems

Attached Files

No.13972 Tafoid Administrator Jul 10, 2017, 23:37	Regression during Dev on June 19, 2016, strong indication is it related to this commit: https://github.com/mamedev/mame/commit/f056b622bcad7c19a521a9a5a181471ff301f5f2