MAME development: lr-mame2003 Updates

[dankcushions]

@dquez thanks for the explanation! that sounds useful but it doesn't sound like something i'd want to do, as it's core mame input functionality and probably quite hard to port between the two versions.

[dankcushions]

17th October 2016

• Fix default controls in American Speedway
  As spotted in the MAME ROW #4 thread

(and then they promptly removed the game from the list of candidates :P)

[dankcushions]

10th December 2016

• TATE mode
  For users with rotatable displays to show vertical games in their native 90 degree rotation, using the full length of the display. See https://github.com/RetroPie/RetroPie-Setup/wiki/lr-mame2003#tate-mode

[dankcushions]

25th February 2017

• Fixed frameskip caused by B button
  Thanks to @RumblinBuffalo for spotting!
  See https://retropie.org.uk/forum/topic/8331/lr-mame2003-speeding-up-with-b-button-press

24th February 2017

• Backported a few refresh rate fixes from current mame
  By default these won't be visible, but you can read about the fix and how to see it here, if you care! https://github.com/libretro/mame2003-libretro/issues/75

[dankcushions]

couple of big ones:

• August 2nd 2017
  Mortal Kombat 2/3 (and others?) sound distortion fixed! these games are now fully playable on pi3. this fix was also funded by @GreenHawk84 and @vince-geekcore - thanks both!

• August 5th 2017
  Killer Instinct 1/2 now work on x86 and pi! thanks to @markwkidd - kinst loads, and runs at about 2 FPS on pi3. very unplayable, so be careful what you wish for ;) however x86 users can at least run it, and it should be playable.

[GreenHawk84]

@dankcushions So glad to help contribute to the improvement of Mame on Retropie!

[Riverstorm]

@greenhawk84 said in MAME development: lr-mame2003 Updates:

@dankcushions So glad to help contribute to the improvement of Mame on Retropie!

Thank you good sir and @markwkidd for the new additions and @dankcushions for keeping this thread of enhancements and improvements you've done.

[pjft]

Oh, wow, well done and thanks for the update!

I take it an update from source would sort it out then?

[dankcushions]

@pjft said in MAME development: lr-mame2003 Updates:

Oh, wow, well done and thanks for the update!

I take it an update from source would sort it out then?

yes! you could try via binaries first, as they may have been updated. source will take about 30 mins on a pi3

[MrJordaaany]

@dankcushions Awesome updates, will update when I get of work :)

[MrJordaaany]

@dankcushions When this update says 'sound distortion' fixed for Mortal Kombat 2 and 3. Does it mean how the games are really quiet? I've updated but no difference this end.

[dankcushions]

@mrjordaaany said in MAME development: lr-mame2003 Updates:

@dankcushions When this update says 'sound distortion' fixed for Mortal Kombat 2 and 3. Does it mean how the games are really quiet? I've updated but no difference this end.

no - the horrid distortion and delay that previously happened after ~10 mins of play. volume can be easily adjusted via the service menu: https://github.com/RetroPie/RetroPie-Setup/wiki/lr-mame2003#service-menu

[GreenHawk84]

@mrjordaaany that will never change, the games were designed with a starting volume. You have to adjust that on the actual game options.

[MrJordaaany]

@dankcushions @GreenHawk84 ah I see. Thanks for the info.

[UDb23]

@dankcushions said in MAME development: lr-mame2003 Updates:

this fix was also funded by @GreenHawk84 and @vince-geekcore

Is it possible to request specific fixes to the libretro team by funding ? How?
As you may remember I'd like to have sounds in Deep Scan (Invinco/Deep Scan dual game).
For a Mame developer it shouldn't be complicated.

Thank you all for making lr-mame2003 better and better!

[pjft]

@udb23 have you tested it in MAME 2010 or AdvMame?

[dankcushions]

@udb23 we use www.bountysource.com to post bounties on github issues. this one was fixed by a developer new to libretro, i believe. the power of open source!

however, i think your issue would only be viable if it's working in MAME 0.78 standalone (like the mk2/3 issue was). i think if it isn't, then you're better finding out which version of MAME it does work, first.

[UDb23]

@pjft According to mameinfo.dat sounds are still not implemented in mame driver. It should/could use samples from "Depth Charge".

[pjft]

@udb23 I suppose I was kind of getting at what @dankcushions suggests. If you find a version of MAME where it works, maybe someone will try to backport it. But if it's not available anywhere, that'd be harder.

[UDb23]

@dankcushions Understood thanks. Did more checking and unfortunately it seems Deep Scan still has no sound even in latest mame. The fact is that vicdual machines had same mainboard but different specific soundboards.
On the other hand recently support for sound daughterboard in N-sub (another vicdual rom) has been added. I posted a comment on that github commit (here) requesting if this could help also for getting sounds in Deep Scan. If anybody wants to request it too there, maybe it can help ;-)