01858: gijoe: Zooming glitches and a wrong backdrop

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
01858	Graphics	Minor	Always	Jun 1, 2008, 12:55	Oct 22, 2019, 14:58

Tester	Kekule	View Status	Public	Platform
Assigned To		Resolution	Open	OS
Status [?]	Confirmed			Driver	konami/gijoe.cpp
Version	0.125u3	Fixed in Version		Build
		Fixed in Git Commit		Github Pull Request #

Summary	01858: gijoe: Zooming glitches and a wrong backdrop
Description	After the "elevator fixing", GI Joe shows some glitches in the elevator (3rd) level, while grates zoom and scroll down. Once you reach the end level boss, the backdrop promptly changes to an obvious wrong one (probably because when the zooming ends, it changes in a common tiles background graphics, but it chooses the wrong one), with robot octopuses popping up from...uh from nowhere?
Steps To Reproduce	Go to the 3rd level; reach the 3rd level's boss.
Additional Information
Github Commit

Flags
Regression Version	0.118u2
Affected Sets / Systems	gijoe

Attached Files	gijoe0000.png (15,374 bytes) Jun 1, 2008, 12:55
	gijoe0001.png (13,867 bytes) Jun 1, 2008, 12:55
	gijoe.zip (50,577 bytes) Oct 29, 2018, 10:32 Uploaded by MetalGod
	mame 0.110.png (19,022 bytes) Oct 29, 2018, 11:03 Uploaded by MetalGod

No.01172 haynor666 Tester Jun 1, 2008, 15:23	Related to bug 0484.
No.15645 MetalGod Senior Tester Oct 29, 2018, 10:31 edited on: Oct 29, 2018, 10:34	Still happening in mame 0.202 The only glitch I see is the boss floor. The boss floor is a different backdrop not seen in the previously uploaded images. It doesn't appear in MAME. The rest of level 3 seems ok in current version. I've uploaded savestates for the beginning of level 3, and right before the boss. Here's a video of the original arcade pcb. Level 3 is in 10:28 . Boss is in 12:30
No.15646 MetalGod Senior Tester Oct 29, 2018, 10:50 edited on: Oct 29, 2018, 17:20	Runs perfect in mame 0.115 backwards, the floor backdrop is correct in the boss. I've uploaded a image of it Regression is 0.118u2, right when the related elevator issue (00484) was solved
No.17119 Haze Senior Tester Oct 22, 2019, 14:58	it was broken intentionally as the code to support it was one of the biggest abuses of code in MAME (writing directly to the private tilemap cache rather than properly emulating it)