04176: Speed throttle doesn't work properly in some games with artwork, -mt and -video ddraw.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
04176	Speed	Minor	Have not tried	Jan 7, 2011, 19:02	Oct 18, 2016, 23:41

Tester	haynor666	View Status	Public	Platform
Assigned To		Resolution	Fixed	OS
Status [?]	Resolved			Driver
Version	0.141	Fixed in Version		Build
		Fixed in Git Commit		Github Pull Request #

Summary	04176: Speed throttle doesn't work properly in some games with artwork, -mt and -video ddraw.
Description	MAME doesn't throttle some games with artwork at 100% with -mt and -video ddraw. Usually the speed is at around 50% for me (Core 2 Duo). They work at full speed without speed throttle, this is not a CPU power issue.
Steps To Reproduce
Additional Information	At first, this problem was thought to be only for vector games, here's test result for them: astdelux 58% redbaron 55% omegrace 69% ripoff 71% armora ok asteroid ok barrier ok bzone ok demon ok elim2 ok llander ok radbaron ok sundance ok spacewar ok starcas ok starcas ok wotw ok slarq ok startrek ok tacscan ok tailg ok warrior ok
Github Commit

Flags
Regression Version
Affected Sets / Systems

Attached Files

No.07028 haynor666 Tester Jan 7, 2011, 19:08	Small update - also raster games suffers from this for example Boot Hill
No.07029 Fujix Administrator Jan 7, 2011, 19:14	Thank you haynor for info, I updated the report . Tafoid is going to do an overall regression test for artwork games.
No.07174 haynor666 Tester Feb 5, 2011, 13:10	Also Golly! Ghost! suffers from this problem. Additionally MAME generates pointer which is not necessary (game has it's own) and shooting is practically impossible due pointer lags.
No.07181 derrickr Developer Feb 9, 2011, 20:28 edited on: Feb 9, 2011, 20:29	OT, but IIRC, the Golly Ghost crosshairs are needed for service mode alignment. After that go into the MAME menu and turn the crosshairs off.
No.07894 haynor666 Tester Nov 24, 2011, 13:58	add triple hunt
No.08552 haynor666 Tester May 12, 2012, 10:17	Additional information. Game works fine if we start them without option maximize. Asteroids Deluxe works ok in window 640x480. Also most of games now work at about 70 -80 % and hitting F10 does not disable throttling. You may add warlords to games with slowdowns. Tested in 145u8.
No.13278 Robbbert Senior Tester Oct 18, 2016, 23:41	Closing because both -mt and -video ddraw no longer exist.