08382: djboy and all clones: Graphics glitches in sprites and background

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
08382	Graphics	Minor	Always	Jul 23, 2022, 23:24	Jul 31, 2022, 21:21

Tester	Augusto	View Status	Public	Platform	SDLMAME
Assigned To		Resolution	Bugs That Aren't Bugs	OS	Linux (64-bit)
Status [?]	Resolved			Driver	kaneko/djboy.cpp
Version	0.245	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	08382: djboy and all clones: Graphics glitches in sprites and background
Description	Thanks for read my bug report. Thanks also for Tafoid and Fujix for all work in mametesters.org allowing me post reports. Screenshot 1 show 2 sprites totally in black color. In several moments in gameplay some sprites does an blink between the correct sprite colors and black. Perhaps anyone reply saying that blink is related with cpu character stamina, but if you play not attacking the sprites continue blinking. Screenshot 2 show some wrong graphics in background. That bug happen in others moments in gameplay. Have an nice night.
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	djboy and all clones

Attached Files	1.png (720,579 bytes) Jul 23, 2022, 23:24 Uploaded by Augusto
Attached Files	2.png (687,017 bytes) Jul 23, 2022, 23:25 Uploaded by Augusto

No.20408 Tafoid Administrator Jul 26, 2022, 20:40	Regarding the blinking - that is as far as I am aware supposed to indicate that the enemy is damaged and the faster it flashes, the closer to being defeated the enemy is. Confirmed with this video. The same video at 1:04-1:05 you'll see a flash of graphics which resemble what you show in your second uploaded screenshot. Since this is a video recording from actual hardware, I'm going to assume that such momentary 1 frame issues like this can and do occur and it isn't a bug in emulation.
No.20418 Augusto Tester Jul 31, 2022, 21:21	Thanks very much for adding the YT link. Video title is arcade PCB not emulation. BTNAB.

No.20408

Tafoid

Administrator

Jul 26, 2022, 20:40

Regarding the blinking - that is as far as I am aware supposed to indicate that the enemy is damaged and the faster it flashes, the closer to being defeated the enemy is. Confirmed with this video.

The same video at 1:04-1:05 you'll see a flash of graphics which resemble what you show in your second uploaded screenshot. Since this is a video recording from actual hardware, I'm going to assume that such momentary 1 frame issues like this can and do occur and it isn't a bug in emulation.

No.20418

Augusto

Tester

Jul 31, 2022, 21:21

Thanks very much for adding the YT link.
Video title is arcade PCB not emulation.
BTNAB.