Main > Monitor/Video Forum
Soft-15KHz - slim new tool for 15KHz on normal vga cards
Silver:
Yes, there are definitely some errors.
All games which change resolution would be incorrect I imagine (e.g. PSX based) games and some systems (as you spotted) are just wrong.
Narc was wrong in the last version of mame, along with all the other midyunit.c games, which appear to have now been doubled from 27Hz to 54Hz (more likely). The midtunit.c games appear to be suffering the same fate. Not sure if its worth submitting a fix, I've not looked in the drivers to see where the data like this is actually stored. I did post something about this a while back on the mameworld mametesters forum.
Silver:
Quick Query: What is the impact in vanilla mame of running at refresh rate slightly higher than the original game?
e.g. say the game is 256x240 @ 59.18Hz, and you run it at 256x240 @ 60Hz?
I know -syncrefresh will sync the video speed to whatever refresh rate you are running at (i.e. a slight speed up in this case) and that the sound will stutter - hence the sound sync hack in cabmame. (incidentally has anyone submitted that hack to mamedev? If they are providing an option to lock the video emulation surely it makes sense to lock the sound to it?)
But if you don't use -syncrefresh, I presume you will get video stutters too? Either tearing or a repeated frame? Have I missed anything?
I can't really see the point of -syncrefresh in normal mame, as it only works if you have the *exact* refresh to match the game - in which case, you presumably don't need -syncrefresh anyway as your already running at the right speed???
Sorry if this is dumb, it's late and I'm not thinking straight...
SailorSat:
As far as I know, without syncrefresh, MAME would either skip frames once in a while (if you have vsync an/or tripplebuffer enabled) or simple show tearing (without vsync and tripplebuffer).
About the SoundHack, actually it's a "dirty" hack that only works on Windows.
Aaron invented "refreshspeed" after my soundhack, but it doesn't work too good.
Ummon:
--- Quote from: SailorSat on February 25, 2008, 10:16:23 pm ---As for those 192 line modes, I don't really know how they work with 15kHz, as they would need something like 90Hz to get near. The only think I could imagine would be actually 192pixels per line, 240 lines per frame.
*EDIT* Actually it IS exactly that way. (If you double the 192 pix width you end up with 384x240)
--- End quote ---
Yeah, I notice some advmame configurations will do Mr. Do horizontal games at 90hz. (Others will double the horizontal scan rate. For some reason, the vertical Mr. Do games displayed horizontally aren't ever a problem.) However, these orignally ran at 15/60. With the avga/soft15, I use 240x240.
For most games, regardless if I'm running at different scan rate or refresh (though, one of them will be close - either 15khz or 60hz), I don't have stuttering issues, video or sound. It's only some vertical games (usually 224x288) when displayed horizontally.
gatordad:
I am fed up with Ati catalyst drivers, I tried to install the new 8.2 and all hell broke loose, a full 2 hours later I installed the original 6.2 that came on my cd but it keeps complaining that launchpad language something or other failed on boot.
Will soft 15 work with omega dirvers?