03189: mach3: sprite / LD positioning seems to be incorrect

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
03189	Graphics	Minor	Always	May 16, 2009, 09:52	Jun 23, 2009, 17:33

Tester	Haze	View Status	Public	Platform	MAME (Self-compiled)
Assigned To		Resolution	Open	OS
Status [?]	Confirmed			Driver	gottlieb/gottlieb.cpp
Version	0.131u2	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	03189: mach3: sprite / LD positioning seems to be incorrect
Description	The sprite markers used by the game seem to be positioned about 16 pixels too far left, or the video is being displayed too far to the right. The range of movement for the player seems to be correct, so it seems most likely that the LD video is misaligned.
Steps To Reproduce
Additional Information
Github Commit

Flags	Verified with Original
Regression Version
Affected Sets / Systems	mach3

Attached Files	wrongplace.png (563,261 bytes) May 16, 2009, 09:52
	wrongplace2.png (765,652 bytes) May 16, 2009, 09:53
	IMG_5011.JPG (920,205 bytes) Jun 2, 2009, 05:33
	IMG_5016.JPG (927,760 bytes) Jun 2, 2009, 05:35
	0000.png (485,804 bytes) Jun 2, 2009, 07:25
	mach3alignpics.zip (6,759,916 bytes) Jun 23, 2009, 17:31

No.04388 Tafoid Administrator May 17, 2009, 03:05	Unfortunately, I do not have this CHD to test. Please, can anyone else out there confirm/deny this?
No.04407 aaron Developer May 22, 2009, 05:15	It is hard to say for sure. According to the test screens, it looks like things may be misaligned. However, I cannot tell based on the gameplay. The overlay can be repositioned with the slider controls. If someone wants to adjust the overlay position to line things up and can confirm via playthrough that the game plays successfully that way, then I will happily update things. Post the results here if you figure it out.
No.04434 bit0mike Tester Jun 2, 2009, 05:46	I uploaded two photos of the real hardware, with the monitor's horizontal centering adjustment skewed left instead of centered -- so you can see the graphics actually extend past the right edge of the laserdisc video by about 10-12 pixels or so (and the leftmost graphics are cut off in that shot because of that)... which is a little weird, but there it is, if it helps. I have a few more photos if you need 'em.
No.04435 Fujix Administrator Jun 2, 2009, 07:26	Thanks bit0mike, excellent screenshots :) I added one taken by MAME for comparison.
No.04453 bit0mike Tester Jun 4, 2009, 20:45	possible sprite priority problem in the mame screenshot too; the tip of the bomber plane on the right is under the color bars, not over.
No.04531 bit0mike Tester Jun 20, 2009, 23:37	h-stretch and v-stretch .986, h-pos/v-pos 0.062 and -0.026 seem to get it within about 95% of my photos, weird as it seems.
No.04552 bit0mike Tester Jun 23, 2009, 17:33	Attaching some more pictures as mach3align.zip. The two I attached before were with the game's monitor H-position adjusted far left. These pictures are with it set normally, so, more accurate :) Three attract mode pics, two graphics tests, one genlock test, one audio checksum test. That's what I used to come up with the .986 stretch and .0062/-0.026 position figures. It seems weird to me that it would clip that much off the left of the LD video, but, that seems to really be the case. Unfortunately I don't have the hardware needed to get a completely unclipped copy of the real game's output.