01542: 3wonders, 3wondersu, wonder3: Wrong colour of background in game selection and start screens

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
01542	Color/Palette	Minor	Always	Mar 18, 2008, 11:41	Apr 2, 2008, 16:25

Tester	Layne	View Status	Public	Platform	MAME (Official Binary)
Assigned To	nicolasa	Resolution	Fixed	OS
Status [?]	Resolved			Driver	capcom/cps1.cpp
Version	0.123u5	Fixed in Version	0.124u1	Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	01542: 3wonders, 3wondersu, wonder3: Wrong colour of background in game selection and start screens
Description	The colour of background in game selection screen is NOT black as showed in MAME, but it's red. And Midnight Wanderers and Chariot start screens are NOT black but blue. I think that Don't Pull start screen is blue too. If someone has better pics from PCB please add them.
Steps To Reproduce
Additional Information
Github Commit

Flags	Verified with Original
Regression Version
Affected Sets / Systems	3wonders, 3wondersu, wonder3

Attached Files	0000.png (21,215 bytes) Mar 18, 2008, 11:41
Attached Files	0001.png (7,309 bytes) Mar 18, 2008, 11:42

No.00233 Kold666 Developer Mar 18, 2008, 17:38	no, the screen selection screen is an hardware weirdness of 3wonders. it depends on the monitor used. see this page: http://hornet.homeftp.net/technical/3wonders/ OT:it's the page of the Amiga legendary music composer Uncle Tom :)
No.00238 Layne Tester Mar 18, 2008, 22:21	Thank you, Kold! Well done, that page is really interesting! So it can be moved to BTANB page, great! :)
No.00277 Tafoid Administrator Mar 20, 2008, 03:39	Reopened to allow for user discussion
No.00278 BMF54123 Tester Mar 20, 2008, 04:09	I have to disagree with Kold666 here. His interpretation of the page seems to be backwards; it looks to me like the monitors that ARE working properly DO show the background colors, and thus MAME should follow suit. On the monitors without any background color, the rest of the colors are obviously wrong as well (as though the missing color is subtracted from the whole screen); conversely, on the monitors that do show the background color, the rest of the colors are rendered properly. It seems pretty obvious to me that the color is supposed to be there, and both MAME and the incompatible monitors are in the wrong. This seems to be the point that the linked page is trying to make as well; in Chapter 1, they even point out that the logos are anti-aliased against the missing color!
No.00446 BMF54123 Tester Mar 28, 2008, 06:08 edited on: Mar 28, 2008, 06:10	I just noticed something interesting in the video: http://bmf.rustedlogic.net/misc/3wonders01.png This is a screen capture from the video, with the same screen from MAME resized and overlaid on top. The white box represents the edges of the emulated screen after resizing (the game's actual resolution). Notice how the flickery blue gradient actually extends OUTSIDE the game's viewable area, into the overscan area, which is black during the rest of the game. This might add some credibility to the "unemulated overscan color" idea I posted: http://www.mameworld.info/ubbthreads/showthreaded.php?Cat=&Number=147003&page=0&view=expanded&sb=5&o=&fpart=1&vc=1
No.00448 Haze Senior Tester Mar 28, 2008, 08:35	I suspect it is something like that, with unwanted side-effects on some monitors. It probably sets the background colour in a completely different way to any of the other CPS games, no doubt 'incorrectly' but it worked in testing.
No.00463 tormod Tester Mar 29, 2008, 10:40	UncleTom has updated his page with some new findings: http://hornet.homeftp.net/technical/3wonders/