07030: crimfght and clones: Screen bug in stage 7

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
07030	Graphics	Minor	Always	Jun 22, 2018, 22:15	Jul 14, 2019, 10:09

Tester	ArcadeGuy	View Status	Public	Platform	Other
Assigned To		Resolution	Bugs That Aren't Bugs	OS	Windows Vista/7/8 (32-bit)
Status [?]	Resolved			Driver	konami/crimfght.cpp
Version	0.198	Fixed in Version		Build	32-bit
		Fixed in Git Commit		Github Pull Request #

Summary	07030: crimfght and clones: Screen bug in stage 7
Description	In stage 7 you can see a black bar at the left-up corner of the screen
Steps To Reproduce	Get to stage 7 then just play like you would normally do.
Additional Information
Github Commit

Flags
Regression Version	0.164
Affected Sets / Systems	crimfght and clones

Attached Files	black bar bug.png (457,575 bytes) Jun 22, 2018, 22:15 Uploaded by ArcadeGuy This image show the bug
	Sin título.png (678,700 bytes) Jun 24, 2018, 03:32 Uploaded by ArcadeGuy
	Mame 164.png (418,082 bytes) Jun 24, 2018, 03:34 Uploaded by ArcadeGuy
	mame 163.png (438,248 bytes) Jun 24, 2018, 03:37 Uploaded by ArcadeGuy
	mame 163 second image.png (591,407 bytes) Jun 24, 2018, 03:40 Uploaded by ArcadeGuy
	mame 164 third image.png (446,491 bytes) Jun 24, 2018, 03:43 Uploaded by ArcadeGuy

No.15208 NekoEd Senior Tester Jun 23, 2018, 05:29	That's a bit far into the game, could you post a savestate at the very end of stage 7/beginning of stage 8?
No.15209 ArcadeGuy Tester Jun 23, 2018, 06:24	OK then
No.15210 ArcadeGuy Tester Jun 23, 2018, 06:36	I was wrong it wasn't stage 8 it is stage 7
No.15211 ArcadeGuy Tester Jun 23, 2018, 06:42 edited on: Jun 23, 2018, 06:44	https://mega.nz/#!kbgyDI4Z!getHrwBoBjaUrvYDyoupQUIIrQyaAuem9v3gk86vlL4 this is the file (stage 7.sta) it is the (japan version)
No.15213 Haze Senior Tester Jun 23, 2018, 13:04	almost certainly just a bug that occurs on real hardware too
No.15214 M.A.S.H. Senior Tester Jun 23, 2018, 14:10 edited on: Jun 23, 2018, 20:59	The sunset background is not scrolling and the other sea background under the black line is scrolling! ????
No.15216 ArcadeGuy Tester Jun 23, 2018, 21:45	it scrolls but the black line appears. im gonna test this with mame 194,195,196,197 because these are the last mame versions from this year to see if it happens im pretty sure this bug wasn't here before
No.15217 ArcadeGuy Tester Jun 24, 2018, 04:05	Well I tested this with mame versions from 194 to 197 all of them have this bug. then i tested from 150 to 169 this started on mame 164 if you look at the images i posted you can see a black bar at the very beginning of the game and a white part of something on the presentation screen on which the girls photos appear i have a felling this may be related to ''TMNT 1989 Konami Problem'' because is the same bug and both games are from that era http://mametesters.org/view.php?id=4790
No.15218 Fujix Administrator Jun 24, 2018, 07:58	> this started on mame 164 Then, please write down "0.164" in the Regression Version filed of your report.
No.15219 ArcadeGuy Tester Jun 24, 2018, 09:10	Done
No.15220 Haze Senior Tester Jun 24, 2018, 12:00 edited on: Jun 24, 2018, 12:04	"i have a felling this may be related to ''TMNT 1989 Konami Problem'" Right, it's common across a lot of hardware, MAME emulates what the PCB outputs, which includes the 'overscan' areas, which aren't visible on monitors that don't show the entire frame. This is the reason games etc. have 'safe areas' because old screens (and even some recent ones) don't show a certain portion of the image so developers have to be careful not to draw essential graphics in those areas, however that doesn't mean the data doesn't exist / isn't being output by the board, hence why a monitor showing the full image will also display them. The overscan area is entirely dependent on the monitor used, some allow the screen size to be adjusted within certain limits, operators were expected to adjust things to suit if they could, or just live with missing graphics if their monitor cut off too much and didn't allow for adjustment. NeoGeo is another good example of this, the majority of the games are programmed around an assumption that the video display is 304x224, however it's been verified across many PCBs and monitors that the true output resolution is 320x224 with garbage in the borders. that's why I'm pretty sure you'll find the PCB is outputting the same garbage / missing bg etc. here.
No.15221 haynor666 Tester Jun 25, 2018, 16:45 edited on: Jun 25, 2018, 16:54	https://www.youtube.com/watch?time_continue=20&v=yahniZfXkR0 Edges of this movie are very blurry but You can see that in upper left corner there is block that looks like in mame. The rest of trash is also visible but poor video quality masking this. I know it's not a proof because of video quality and the fact that we don't see those 8 lines all the time.
No.15229 ICEknight Tester Jun 29, 2018, 03:42 edited on: Jun 29, 2018, 06:52	I suspect that these BTANB reports are going to keep coming unless a "crop overscan" functionality gets added, somewhat like this: https://i.imgur.com/8zlyCBQ.png As of today, MAME crops the overscan in certain systems and leaves others uncropped, instead of always showing the full display that the hardware outputs. Personally, I think that it would be more accurate to display the overscan even for systems that just output a black frame around the picture like the SNES, unless the user wants the display cropped. Having this option at hand would make for a quick answer to all the "there's a glitch in the borders" reports.
No.16649 MetalGod Senior Tester Jul 14, 2019, 10:09 edited on: Jul 14, 2019, 10:24	This is a recording from a japanese pcb of the game. ALL bugs are seen in the gameplay 0:06, stage select bug 0:14, level 1 left black bar bug 53:35, stage 7 bug (in that time it matches the snapshot provided in this ticket, but the issue starts before) 57:53, ending left bar bug This user has many "not mame" gameplays in his channel, and this gameplay doesn't have the famous slow music issue present in many konami games, including Crime Fighters ( https://mametesters.org/view.php?id=413 )