MAMEWorld >> EmuChat
Previous thread Previous  View all threads Index   Next thread Next   Flat Mode Flat  

digitaldog
MAME Fan
Reged: 11/11/20
Posts: 1
Send PM
Galaga on MAME 0.225 is lagging fire 200-300 ms
11/11/20 02:18 PM


Hi,

Galaga on MAME 0.225 is lagging fire 200-300 ms since you press the fire key to when it's really firing. This is a Dell laptop with i7 CPU and fully updated Windows 10, tried also on HP Envy with Ryzen, exactly same effect. It's very hard to play. Left/right movements seem fine. Windows power options set to high performance. Sound is perfect, no frame skip, emulation speed 100%. Just the fire is delayed. I tried remapping fire key to a different one to check if it's the culprit, no change. Tried MAME64 and MAME64UI, same results. Tried various Galaga ROMs, no difference. Older MAME versions - same result. Low latency setting checked - no change.

For casual player it may not be a problem, however I'm a Galaga addict making 2-3 millions on a real arcade machine but on MAME I can't exceed 200,000 thanks to this glitch...

I tried to show it on the attached video. I'm hitting the fire button hard so that you can hear the key sound and when it's actually launching a bullet and making a sound in game. I think it's easy to reproduce.

My theory is that the keypress is ingested by MAME and buffered for some reason for like 200-300 milliseconds and then passed to the game. However I'm not a MAME expert, so it would need confirmation.

Is there a MAME expert/MAME developer here to verify this?

Thanks in advance.

https://youtu.be/Diy6QZNYu8k

older video:
https://youtu.be/lvxGFH5WVkU







Entire thread
Subject Posted by Posted on
* Galaga on MAME 0.225 is lagging fire 200-300 ms digitaldog 11/11/20 02:18 PM
. * Re: Galaga on MAME 0.225 is lagging fire 200-300 ms Haze  11/12/20 07:52 AM
. * Re: Galaga on MAME 0.225 is lagging fire 200-300 ms MooglyGuy  11/12/20 03:32 AM
. * Re: Galaga on MAME 0.225 is lagging fire 200-300 ms sirscotty  11/12/20 12:50 AM
. * It better to record from your Desktop screen. Using the Bandicam or any program to catcher it. Dullaron  11/11/20 11:59 PM
. * Re: Galaga on MAME 0.225 is lagging fire 200-300 ms Envisaged0ne  11/11/20 04:49 PM

Extra information Permissions
Moderator:  redk9258, URherenow, Tafoid 
1 registered and 9 anonymous users are browsing this forum.
You cannot start new topics
You cannot reply to topics
HTML is enabled
UBBCode is enabled
Thread views: 259