03498: sengekis, sengekisj: Missing graphic layer in Stages 3 and 5

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
03498	Graphics	Minor	Always	Oct 30, 2009, 19:30	Nov 5, 2009, 13:00

Tester	user666	View Status	Public	Platform	MAME (Official Binary)
Assigned To	Haze	Resolution	Fixed	OS	Windows XP (32-bit)
Status [?]	Resolved			Driver	kaneko/suprnova.cpp
Version	0.134u3	Fixed in Version	0.135u1	Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	03498: sengekis, sengekisj: Missing graphic layer in Stages 3 and 5
Description	In Stages 3 and 5 where floating turrets appear, background layers around the turrets are missing. This is particularly evident towards the end of Stage 3, where the boss simply pops out from a floating hatch, then the hatch disappears afterwards. MAMEnd shows a Stage 3 boss screen shot that includes the missing background, which indicates the bug was introduced in a later build prior to the tested version in this report.
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	sengekis, sengekisj

Attached Files

No.05085 Haze Senior Tester Oct 30, 2009, 19:57	it probably broken when I rewrote the priority code then, the priorities should actually be much better in 99% of cases since that rewrite, I guess this must be an exception, and could make a useful test case.
No.05087 Tafoid Administrator Oct 30, 2009, 20:16	To poster: When posting bugs about graphics, please post before and after snaps of the issue in question. Fortunately, we have a Dev here who knows what you are referring too but in general, a picture illustrating the issues is desired.
No.05129 Haze Senior Tester Nov 4, 2009, 21:49 edited on: Nov 4, 2009, 21:50	can somebody find the exact version where this broke? It's not a priority problem, it sems to be a zooming tilemap problem, although the values that get passed in look weird so I'd like to compare it with the last version that worked. You'll probably want to use cheats, this game is evil, and getting to the end of level 3 is HARD.
No.05131 Haze Senior Tester Nov 5, 2009, 12:45	ok I see what's wrong, my custom roz draw doesn't handle negative increments, and becaue sengekis is 'always flipped' it breaks when they enable roz at that point.