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nothrottle and ddraw
#291770 - 07/14/12 04:56 PM
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i use normal mame from mamedev i don't use mame.ini, i pass options via the command line i use "mame gamename -nothrottle -syncrefresh" this way i get smooth scrolling, no tearing etc, game is ruuning close to the real speed depending of the refreshrate of the original game but if i use -vidoe ddraw option then the game(s) are running as fast as it can i'm not complaining or anything i'm just curious why with the default d3d i get normal playing speeds but with ddraw mame it runs as fast as it can p.s. thx mameteam for syncrefresh and nothrottle. they should be avaible in every emulator.
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Sune |
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Reged: 09/21/03
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Posts: 5648
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Loc: Lagoa Santa, Brasil
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Re: nothrottle and ddraw
[Re: asasega]
#291789 - 07/14/12 11:23 PM
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> i use normal mame from mamedev > i don't use mame.ini, i pass options via the command line > i use "mame gamename -nothrottle -syncrefresh" > this way i get smooth scrolling, no tearing etc, game is ruuning close to the real > speed depending of the refreshrate of the original game > but if i use -vidoe ddraw option then the game(s) are running as fast as it can > i'm not complaining or anything i'm just curious why with the default d3d i get > normal playing speeds but with ddraw mame it runs as fast as it can > p.s. thx mameteam for syncrefresh and nothrottle. they should be avaible in every > emulator.
Using nothrottle and syncrefresh at the same time causes the frame rate to match your refresh rate, provided your CPU can run the game at that speed of course. I think the reason for the difference between the two is that with D3D you are capped at 60Hz but with ddraw you're not. dxdiag used to have a troubleshooting tab where you could override the D3D refresh rate, but that's gone since Windows Vista. It's also possible that your video card driver is doing this.
/EDIT
What OS are you running and what video card do you have? I cannot replicate what you are describing, -nothrottle and -syncrefresh at the same time causes everything to run insanely fast with both the ddraw and D3D renderer. I'm on 64-bit Windows 7 with a Geforce GTX 460.
S
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Re: nothrottle and ddraw
[Re: Sune]
#291830 - 07/15/12 07:45 AM
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windows xp sp3, intel celeron cpu, intel GM965 gpu, it's an old laptop from 2007
i tested the same settings on a newer laptop(win 7 x64) from 2010 with an amd cpu, ati gpu and i get the same results, and that's good:)
Edited by asasega (07/15/12 04:10 PM)
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