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    Odroid XU4 MAME Performance?

    Scheduled Pinned Locked Moved General Discussion and Gaming
    odroidxu4mameperformancelr-mame2010
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    • LoggaheadL
      Loggahead
      last edited by

      @udb23 said in Odroid XU4 MAME Performance?:

      You just need the samples for those games and sound will be ok.
      Recently found out that thru rom decapping some components are now emulated correctly for Xevious. Mame2010 should therefore provide more accurate emulation.

      Are you kidding me!? AWESOME !!!

      How do I incorporate those samples? Do I just merge those files in the zip with the ROM zip I am using in mame2003?

      My 1982 Robotron Restoration / Conversion Project running on retropie !!!

      UDb23U 1 Reply Last reply Reply Quote 0
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        barbudreadmon @Loggahead
        last edited by

        @loggahead said in Odroid XU4 MAME Performance?:

        Cool, I'll take a screenshot of Raiden II and see if you can help point me in a direction. Its the first boss that has issues. His legs have pipes that are supposed to extend in and out as it walk but using fba on my pi, the sprite of the pipes are set static and vertical.

        It works properly in fba.

        @loggahead said in Odroid XU4 MAME Performance?:

        Galaga does the same

        It also works properly in fba

        Sadly the other games you mentioned are not supported in fba.

        FBNeo developer - github - forum

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        • LoggaheadL
          Loggahead
          last edited by

          @barbudreadmon said in Odroid XU4 MAME Performance?:

          It works properly in fba.

          Im using fba for Raiden II and that's where I get the graphical issues with the level 1 boss. Maybe its a rom version?

          My 1982 Robotron Restoration / Conversion Project running on retropie !!!

          B 1 Reply Last reply Reply Quote 0
          • UDb23U
            UDb23 @Loggahead
            last edited by

            @loggahead said in Odroid XU4 MAME Performance?:

            Are you kidding me!? AWESOME !!!
            How do I incorporate those samples? Do I just merge those files in the zip with the ROM zip I am using in mame2003?

            From the wiki ;-)
            Samples
            Some sound effects in a few older (typically pre-1986) arcade games are difficult/impossible to emulate. Instead, audio clips of these effects can be downloaded and automatically played at the appropriate times. To do this, download the sample files you require and place the .zip files into:

            /home/pi/RetroPie/BIOS/mame2003/samples/

            https://github.com/RetroPie/RetroPie-Setup/wiki/lr-mame2003

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            • B
              barbudreadmon @Loggahead
              last edited by

              @loggahead said in Odroid XU4 MAME Performance?:

              Maybe its a rom version?

              Roms for mame/fba must match the emulator version, 99.99% of the time they won't load at all if you pick a random rom on internet. I've serious doubts this is your issue since the game is loading. It's not an issue with the CPU overclock option either since raiden2 don't use it. Are you 100% sure you are using latest lr-fbalpha ? Not lr-fbalpha2012 or pifba ? Those 2 are full of bugs.

              FBNeo developer - github - forum

              LoggaheadL 1 Reply Last reply Reply Quote 0
              • LoggaheadL
                Loggahead @barbudreadmon
                last edited by

                @barbudreadmon said in Odroid XU4 MAME Performance?:

                Roms for mame/fba must match the emulator version, 99.99% of the time they won't load at all if you pick a random rom on internet. I've serious doubts this is your issue since the game is loading. It's not an issue with the CPU overclock option either since raiden2 don't use it. Are you 100% sure you are using latest lr-fbalpha ? Not lr-fbalpha2012 or pifba ? Those 2 are full of bugs.

                I'm just using the stock lr-fbalpha which came loaded with the 4.3 build? I never loaded any optional versions of fba that I know of.

                Heres a pic of what the first boss does. Notice his upper right and lower left legs are emulated properly but his upper left and lower right are messed up.

                alt text

                Also, every now and again, sprites will jump to a different location on the screen. This happens sometimes picking up power ups. You go to get it and will all of a sudden jump to a different spot and start floating around again. Some enemies do this too. But this happens rarely.

                Anyways, not a deal breaker, I've just been assuming I was going to need a newer emulator to properly play Raiden II.

                I also ended up loading Raiden Project on PSX which has Raiden 1 and 2, but the FBA version looks better imo other than the glitches.

                My 1982 Robotron Restoration / Conversion Project running on retropie !!!

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                • B
                  barbudreadmon @Loggahead
                  last edited by

                  @loggahead Actually you are right, there is an issue with 2 out of the 4 legs but it's not happening on my x86_64 computer (which i used it at first to look for your glitch). I'll look into the code and let you know if i find a fix.

                  FBNeo developer - github - forum

                  1 Reply Last reply Reply Quote 1
                  • B
                    barbudreadmon @Loggahead
                    last edited by

                    @loggahead my guess about raiden2 : the rpi3 is struggling with it and some timer is going haywire because of this. If you get your hands on a odroid xu4 or a rpi3b+ (you can overclock the new model to 1.6Ghz easily from what i read) i would be curious to see if the issue persist.

                    FBNeo developer - github - forum

                    LoggaheadL 1 Reply Last reply Reply Quote 0
                    • LoggaheadL
                      Loggahead
                      last edited by

                      @athman8 said in Odroid XU4 MAME Performance?:

                      Several MAMEdevs have an ODroid-C2, including Micko and myself. The problem is that there is no accelerated video for it yet; no GLES, not even baseline X11 acceleration. So while MAME shows gaudy Pi-crushing numbers in "-video none" benchmarks, you can't actually play it at a decent speed yet.When that changes, it should pretty quickly become the best-supported ARM board for MAME.

                      Cool! Thanks for the update! Being someone who got his first taste of emulation back around 2003, I love how much it has evolved and am excited to see where it goes in the future.

                      My 1982 Robotron Restoration / Conversion Project running on retropie !!!

                      1 Reply Last reply Reply Quote 0
                      • LoggaheadL
                        Loggahead @barbudreadmon
                        last edited by

                        @barbudreadmon said in Odroid XU4 MAME Performance?:

                        i would be curious to see if the issue persist.

                        Roger that and thanks for checking! I'll keep that in mind in the future. I'm not in any hurry to pick a new board just yet. I've been having so much fun with what I've got.

                        On a sidenote, I've been playing Raiden II on the PSX rom "Raiden Project" which I actually do own. It plays well enough but isn't quite arcade perfect.

                        My 1982 Robotron Restoration / Conversion Project running on retropie !!!

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                        • B
                          barbudreadmon @Loggahead
                          last edited by

                          @loggahead Actually the issue is not with the rpi3 struggling. I think i figured the fix, just waiting for upstream advice before committing it since i'm worried about potential side effects. If everything goes well, it will be available later today.

                          @dankcushions @mediamogul :
                          As a side note, i'm not sure how retropie handle cflags for lr-fbalpha (the installation script at https://github.com/RetroPie/RetroPie-Setup/blob/master/scriptmodules/libretrocores/lr-fbalpha.sh seems really outdated, profile has been deprecated 2 or 3 years ago and platform will generally handle the right cflags if set with the appropriate value), but i noticed this game performs a lot better on my rpi3 when "--ffast-math" is enabled, probably because the driver uses a lot of arythmetics.

                          FBNeo developer - github - forum

                          mituM 1 Reply Last reply Reply Quote 0
                          • mituM
                            mitu Global Moderator @barbudreadmon
                            last edited by

                            @barbudreadmon What would your recommend to change for the build step in the package ? Some optimization flags could be added via CFLAGS/CPPFLAGS, like the --fast-math directive.

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                            • B
                              barbudreadmon @mitu
                              last edited by

                              @mitu replacing build_lr-fbalpha by something like this would probably be ok :

                              function build_lr-fbalpha() {
                              make -f makefile.libretro clean
                              local params=()
                              if isPlatform "rpi2"; then
                              params+=("platform=rpi2")
                              elif isPlatform "rpi3"; then
                              params+=("platform=rpi3")
                              fi
                              make -f makefile.libretro "${params[@]}"
                              md_ret_require="$md_build/fbalpha_libretro.so"
                              }

                              If you got something to detect if the platform is x86 and 32 bits, you could probably also add the FASTCALL=1 parameter

                              FBNeo developer - github - forum

                              mituM 1 Reply Last reply Reply Quote 0
                              • mituM
                                mitu Global Moderator @barbudreadmon
                                last edited by

                                @barbudreadmon The RetroPie script already has some CFLAGS set by platform when compiling. For the PI3 they are

                                -O2 -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -ftree-vectorize -funsafe-math-optimizations -pipe
                                

                                When running the compile with make -f makefile.libretro platform=rpi3 (and disabling the RP script CFLAGS), the flags added by the build detection are

                                 -O3 -marm -mcpu=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -ffast-math
                                

                                They're more or less equivalent in terms of cpu/arch specifications, what's missing is the -ffast-math and the FASTCALL for the x86 arch. For reference, these are set here.

                                1 Reply Last reply Reply Quote 1
                                • B
                                  barbudreadmon
                                  last edited by

                                  @mitu iirc, -ffast-math includes -funsafe-math-optimizations, -O3 includes -ftree-vectorize, also -O3 will be included whatever you do when building lr-fbalpha, i think it's safe to build with both -O2 and -O3 (the later should override the first) but i'm not 100% sure.
                                  -march=armv8-a+crc -mtune=cortex-a53 is the recommended setting for rpi3 in 64bits mode, i'm not sure what happens with performance when you use it in 32bits mode. With gcc-6.x i know you can also use -march=native in 64bits mode.

                                  FBNeo developer - github - forum

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                                  • B
                                    barbudreadmon @Loggahead
                                    last edited by barbudreadmon

                                    @loggahead btw, the fix was commited yesterday, now raiden2 runs flawlessly with lr-fbalpha on arm devices. You'll probably need to update from source to see those changes.

                                    FBNeo developer - github - forum

                                    LoggaheadL 1 Reply Last reply Reply Quote 0
                                    • LoggaheadL
                                      Loggahead @barbudreadmon
                                      last edited by

                                      @barbudreadmon said in Odroid XU4 MAME Performance?:

                                      now raiden2 runs flawlessly with lr-fbalpha on arm devices

                                      YES !!! You and all involved ROCK !!! Thanks so much!!!

                                      I just have to update the lr-fbalpha package right? I also plan to re-image and upgrade to 4.4 this weekend, I take it after I upgrade, I'll need to update fba again?

                                      My 1982 Robotron Restoration / Conversion Project running on retropie !!!

                                      B 1 Reply Last reply Reply Quote 0
                                      • B
                                        barbudreadmon @Loggahead
                                        last edited by

                                        @loggahead said in Odroid XU4 MAME Performance?:

                                        I just have to update the lr-fbalpha package right?

                                        If you mean from binary, probably not. As said above you'll probably have to update from sources.

                                        FBNeo developer - github - forum

                                        LoggaheadL 2 Replies Last reply Reply Quote 0
                                        • LoggaheadL
                                          Loggahead @barbudreadmon
                                          last edited by

                                          @barbudreadmon said in Odroid XU4 MAME Performance?:

                                          As said above you'll probably have to update from sources.

                                          K. Ill give it a shot tonight! Thanks again!

                                          My 1982 Robotron Restoration / Conversion Project running on retropie !!!

                                          1 Reply Last reply Reply Quote 0
                                          • LoggaheadL
                                            Loggahead @barbudreadmon
                                            last edited by

                                            @barbudreadmon said in Odroid XU4 MAME Performance?:

                                            @loggahead said in Odroid XU4 MAME Performance?:

                                            I just have to update the lr-fbalpha package right?

                                            If you mean from binary, probably not. As said above you'll probably have to update from sources.

                                            This worked! Thanks so much again!

                                            My 1982 Robotron Restoration / Conversion Project running on retropie !!!

                                            1 Reply Last reply Reply Quote 0
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