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    NEW Reicast Cores in RA

    Emulator Arcade/PC/Console
    reicast cores
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    • barbudreadmon
      barbudreadmon @kelv last edited by

      @kelv said in NEW Reicast Cores in RA:

      It would be great if it can be in the next release

      Only usable on a 3Ghz x86_64 computer with proprietary nvidia/radeon GPU and drivers at the moment.
      Just so you know, to get this running on a rpi we would need all of this :

      • a more powerful rpi (i would say 2Ghz at the very least, and i don't expect the future rpi4 to have this kind of cpu)
      • a new gpu on the raspberry compatible with opengl 4.3 (considering what the rpi fundation told in the past, i don't think it'll ever happen)
      • working multi-thread support in libretro-reicast (or a 3Ghz cpu in the rpi, which is very unlikely)
      • working arm dynarec in libretro-reicast (or a 4Ghz cpu in the rpi, which is very very unlikely)

      Also, the last 2 issues have been known since the beginning of libretro-reicast (almost 3 years ?), it seems unlikely they'll get fixed any time soon.

      Libretro developper :

      • FBAlpha FBNeo (Arcade)
      • Kronos (Sega Saturn/ST-V)
      • YabaSanshiro (Sega Saturn)
      • Reicast Flycast (Dreamcast/Naomi/AtomisWave)
      Gaetan Substring 2 Replies Last reply Reply Quote 0
      • Gaetan
        Gaetan Theme moderator @barbudreadmon last edited by

        @barbudreadmon Thanx for your enlightement. So, sadly nothing is coming for the Recalbox users before 2025 ^^

        Boards : Now: Nuc i7 7567u // Past: Rpi3 B, Rpi3 B+, Odroid xu4
        Controllers : Ps3 dualshock, 8bitdo SFC30 pro, Snes wired controller

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        • Substring
          Substring @barbudreadmon last edited by

          @barbudreadmon that's something i just don't understand with libretro ports ... Why do they diverge that much from upstream ? Why not work with mains devs for an "easy to keep up-to-date" libretro core as they did with the ppsspp core ?

          Reicast does have armv7 dynarec ...

          Former dev - Please reply with @substring so that i am notified when you answer me
          Ex dev - Merci de me répondre en utilisant @substring pour que je sois notifé

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

            @substring said in NEW Reicast Cores in RA:

            Why do they diverge that much from upstream ?

            Well, that's definitely not on purpose, from what i can tell, arm/x86/x86_64 dynarecs in standalone reicast are really different, i guess the x86_64 one was easy to get working in the libretro port, while the 2 others weren't. Actually, i looked at recent commits and it seems twinaphex is still trying to fix the arm one.

            Libretro developper :

            • FBAlpha FBNeo (Arcade)
            • Kronos (Sega Saturn/ST-V)
            • YabaSanshiro (Sega Saturn)
            • Reicast Flycast (Dreamcast/Naomi/AtomisWave)
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            • barbudreadmon
              barbudreadmon @Substring last edited by

              @substring You can find the "standalone version" of reicast-oit there : https://github.com/flyinghead/reicast-emulator
              This one got the dynarec and multithread support, but you still need opengl 4.3 (perhaps it also works with gles3).

              Libretro developper :

              • FBAlpha FBNeo (Arcade)
              • Kronos (Sega Saturn/ST-V)
              • YabaSanshiro (Sega Saturn)
              • Reicast Flycast (Dreamcast/Naomi/AtomisWave)
              Substring 1 Reply Last reply Reply Quote 0
              • Substring
                Substring @barbudreadmon last edited by

                @barbudreadmon yup, found the repo while browding through TA's commits on reicast OIT. Will give it a try after summer unless someone else in the tea wants to have fun with it

                Former dev - Please reply with @substring so that i am notified when you answer me
                Ex dev - Merci de me répondre en utilisant @substring pour que je sois notifé

                Flyinghead 1 Reply Last reply Reply Quote 0
                • Flyinghead
                  Flyinghead @Substring last edited by

                  Hi @substring and others.
                  The master branch of my reicast fork should work fine on a Pi. I tested it and made sure to keep performance to an acceptable level. It adds a number of features compared to upstream reicast: shadow volumes, clipping, render to texture, multipass rendering support and a number of bug fixes.
                  The OIT branch (fh/deferred-shading) on the other hand is very experimental and require desktop-level cpu and gpu (and OpenGL 4.3). It also only works with NVIDIA gpu at the moment and has a couple of bugs, but I intend to improve this in the coming weeks.

                  Substring 1 Reply Last reply Reply Quote 1
                  • Substring
                    Substring @Flyinghead last edited by

                    @flyinghead Hey ! Welcome on board, glad to see you here 🙂

                    how does your reicast fork work compared to skmp's in terms of performance ? like ... does the date finally get saved ? We've also spotted a bug of improper exit of reicast with some dirty die here and there, not cleanly deinit-ing SDL2 which can cause some problems on some boards using GBM rather than FBDEV.

                    Former dev - Please reply with @substring so that i am notified when you answer me
                    Ex dev - Merci de me répondre en utilisant @substring pour que je sois notifé

                    Flyinghead 1 Reply Last reply Reply Quote 0
                    • Flyinghead
                      Flyinghead @Substring last edited by Flyinghead

                      @substring said in NEW Reicast Cores in RA:

                      @flyinghead Hey ! Welcome on board, glad to see you here 🙂

                      Thank you!

                      how does your reicast fork work compared to skmp's in terms of performance ? like ... does the date finally get saved ? We've also spotted a bug of improper exit of reicast with some dirty die here and there, not cleanly deinit-ing SDL2 which can cause some problems on some boards using GBM rather than FBDEV.

                      Performance should be similar to skmp reicast although most features I added do have a slight performance hit.
                      I also integrated fixes for clean exit, so that the date and VMU are properly saved on exit.

                      Gaetan Substring 2 Replies Last reply Reply Quote 1
                      • Gaetan
                        Gaetan Theme moderator @Flyinghead last edited by

                        @flyinghead That's impressive work !
                        Does Shenmue 2 run on pi3 now ? It's stop after the end of the introduction.
                        It's great to see that there is a hope of seeing improvement with DC emulator on pi 🙂

                        Boards : Now: Nuc i7 7567u // Past: Rpi3 B, Rpi3 B+, Odroid xu4
                        Controllers : Ps3 dualshock, 8bitdo SFC30 pro, Snes wired controller

                        Flyinghead 1 Reply Last reply Reply Quote 0
                        • Substring
                          Substring @Flyinghead last edited by

                          @flyinghead I'll definitely give it a go (in august)

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                          Gaetan 1 Reply Last reply Reply Quote 1
                          • Flyinghead
                            Flyinghead @Gaetan last edited by

                            @gaetan I believe the problem with Shenmie 2 is that it has self-modifying code, which breaks the recompiler. I haven’t made any change is this area unfortunately.

                            Gaetan 2 Replies Last reply Reply Quote 0
                            • Gaetan
                              Gaetan Theme moderator @Flyinghead last edited by

                              @flyinghead Ok. Thank you for your work !
                              DC is a great system and it's nice to see people involved in such a project 🙂

                              Boards : Now: Nuc i7 7567u // Past: Rpi3 B, Rpi3 B+, Odroid xu4
                              Controllers : Ps3 dualshock, 8bitdo SFC30 pro, Snes wired controller

                              1 Reply Last reply Reply Quote 1
                              • Gaetan
                                Gaetan Theme moderator last edited by

                                Et une nouvelle màj Reicast 8.1 :
                                https://github.com/reicast/reicast-emulator/releases/tag/r8.1

                                Boards : Now: Nuc i7 7567u // Past: Rpi3 B, Rpi3 B+, Odroid xu4
                                Controllers : Ps3 dualshock, 8bitdo SFC30 pro, Snes wired controller

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                                • Gaetan
                                  Gaetan Theme moderator @Flyinghead last edited by

                                  @flyinghead est-ce que tu sais si sur ton fork les jeux Worms fonctionnent ?
                                  Avec la version actuelle il y a un retour à la gamelist systématique quelque soit le format de la rom.

                                  Boards : Now: Nuc i7 7567u // Past: Rpi3 B, Rpi3 B+, Odroid xu4
                                  Controllers : Ps3 dualshock, 8bitdo SFC30 pro, Snes wired controller

                                  Flyinghead 1 Reply Last reply Reply Quote 0
                                  • Flyinghead
                                    Flyinghead @Gaetan last edited by

                                    @gaetan Malheureusement, non. Les jeux Worms utilisent Windows CE, qui n'est pas supporté pour le moment.

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                                    • Gaetan
                                      Gaetan Theme moderator @Substring last edited by

                                      @Flyinghead ok, j'avais beaucoup joué à cette version du jeu à l'époque 🙂

                                      @substring said in NEW Reicast Cores in RA:

                                      @flyinghead I'll definitely give it a go (in august)

                                      Je sais que tu étais très occupé ces derniers temps, mais as-tu pu depuis y jeter un œil ?

                                      Boards : Now: Nuc i7 7567u // Past: Rpi3 B, Rpi3 B+, Odroid xu4
                                      Controllers : Ps3 dualshock, 8bitdo SFC30 pro, Snes wired controller

                                      1 Reply Last reply Reply Quote 0
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