03136: all sets in playch10.c: Running with -bios single shows two screens anyway

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
03136	Graphics	Major	Have not tried	Apr 30, 2009, 20:25	Jul 18, 2018, 09:47

Tester	Luigi30	View Status	Public	Platform	MAME (Self-compiled)
Assigned To		Resolution	Open	OS	Windows XP/Vista 32-bit
Status [?]	Confirmed			Driver	nintendo/playch10.cpp
Version	0.131	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	03136: all sets in playch10.c: Running with -bios single shows two screens anyway
Description	If you run a Playchoice-10 game with the single-screen BIOS, MAME will use the dual-screen layout anyway with both screens showing the same thing, and corrupted graphics in the menu.
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	all sets in playch10.c

Attached Files	0001.png (2,644 bytes) Apr 30, 2009, 20:25
Attached Files	0002.png (10,758 bytes) Apr 30, 2009, 20:26

No.04296 etabeta Developer Apr 30, 2009, 21:22	I don't think you can set the layout so that it changes depending on the bios chosen. I think you are forced to manually change it.
No.14682 keilmillerjr Tester Jan 25, 2018, 01:18	Issue still present in 0.192
No.15283 cuavas Administrator Jul 18, 2018, 09:47	The issue is that the single-screen PlayChoice 10 is a different machine. It shouldn't be a BIOS option. The PlayChoice 10 code is in horrible shape and badly needs refactoring. Adding hacks to the core to compensate for horrible implementation choices in the driver is not a solution, and if anyone attempts this (i.e. adding a hack to control view selection from the driver, which can't possibly play well with per-device layouts or external artwork) they will lose commit access. The Neo Geo MVS driver was in a similar state, emulating a mish-mash of features not corresponding to any real-world configuration. I'm slowly untangling that mess. Someone else can do the PlayChoice 10, preferably someone with better NES credentials than me. I know a lot about the Neo Geo family, but nowhere near as much about NES.

No.04296

etabeta

Developer

Apr 30, 2009, 21:22

I don't think you can set the layout so that it changes depending on the bios chosen. I think you are forced to manually change it.

No.14682

keilmillerjr

Tester

Jan 25, 2018, 01:18

Issue still present in 0.192

No.15283

cuavas

Administrator

Jul 18, 2018, 09:47

The issue is that the single-screen PlayChoice 10 is a different machine. It shouldn't be a BIOS option. The PlayChoice 10 code is in horrible shape and badly needs refactoring. Adding hacks to the core to compensate for horrible implementation choices in the driver is not a solution, and if anyone attempts this (i.e. adding a hack to control view selection from the driver, which can't possibly play well with per-device layouts or external artwork) they will lose commit access.

The Neo Geo MVS driver was in a similar state, emulating a mish-mash of features not corresponding to any real-world configuration. I'm slowly untangling that mess. Someone else can do the PlayChoice 10, preferably someone with better NES credentials than me. I know a lot about the Neo Geo family, but nowhere near as much about NES.