02733: arabianm: tile layer 4 is not visible at cutscenes

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
02733	Graphics	Minor	Always	Dec 11, 2008, 16:27	Apr 1, 2023, 04:07

Tester	hap	View Status	Public	Platform	MAME (Unofficial Binary)
Assigned To		Resolution	Open	OS
Status [?]	Confirmed			Driver	taito/taito_f3.cpp
Version	0.128u5	Fixed in Version		Build	I686
		Fixed in Git Commit		Github Pull Request #

Summary	02733: arabianm: tile layer 4 is not visible at cutscenes
Description	The text layer (TMAP 4) is not visible during cutscenes, like at the start of the game, or after finishing round 2.
Steps To Reproduce	Boot the game, insert coin, don't press start, intro story begins. Optionally press F4 and look at tilemap #4 to see the hidden text layer.
Additional Information	also happens on official 0.128
Github Commit

Flags
Regression Version	0.97u3
Affected Sets / Systems	arabianm

Attached Files

No.03277 Tafoid Administrator Dec 11, 2008, 18:32	Regression found somewhere between 0.97 and 0.98. Whatsnew examination strongly suggests 0.97u3 as the actual regression version: Major video update to Taito F3 driver that amongst other things properly implements zoom & column scroll according to how the hardware does it, which not only fixes glitches in various games but allowed many hacks to be removed also. Sprite & tilemap clipping is also implemented, as is proper priority mixing and alpha-blending on the vram and pixel layers. [Bryan McPhail]
No.05308 Iaspis Tester Dec 26, 2009, 07:42 edited on: Dec 26, 2009, 07:46	Is this related to 00147?
No.16918 MetalGod Senior Tester Sep 17, 2019, 23:31	Full gameplay from pcb here:
No.21245 ywy Tester Apr 1, 2023, 04:07	some incorrect assumptions in alpha blending handling are being violated here; line data 72xx is b00f, changing lines to e.g. 700f causes vram to display.