|
nothrottle and ddraw
#291770 - 07/14/12 04:56 PM
|
|
|
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.
|
|
|
| Sune |
|
Connected
|
|
|
|
|
Reged: 09/21/03
|
|
Posts: 5648
|
|
Loc: Lagoa Santa, Brasil
|
|
|
|
Send PM
|
|
|
Re: nothrottle and ddraw
[Re: asasega]
#291789 - 07/14/12 11:23 PM
|
|
|
> 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
|
|
|
|
Re: nothrottle and ddraw
[Re: Sune]
#291830 - 07/15/12 07:45 AM
|
|
|
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)
|
|
|
Index 
Threaded 
nothrottle and ddraw
Reply
[Re: 