kovplus game not work via mame emscripten

[liudonghua123]

Hi, I tried to build an emscripten build of mame 0.246 in order to run some games in the browser. I encountered some problems when build the mame mamedev/mame#10257, and finally I build successfully.

I use emmake make SUBTARGET=arcade SOURCES=src/mame/neogeo/neogeo.cpp TOOLS=0 NOWERROR=1 REGENIE=1 -j8 to build the wasm/js/html. And I also tried emmake make SUBTARGET=neogeo SOURCES=src/mame/neogeo/neogeo.cpp TOOLS=0 NOWERROR=1 REGENIE=1 -j8, both of them produce the same files except filename different.

Then I use https://github.com/db48x/emularity/ to load the game. The configuration part of code is the following.

      var emulator = new Emulator(
        document.querySelector("#canvas"),
        null,
        new JSMAMELoader(
          JSMAMELoader.driver("neogeo"),
          JSMAMELoader.nativeResolution(256, 256),
          JSMAMELoader.scale(3),
          JSMAMELoader.emulatorJS("emulators/mame/neogeo.js"),
          JSMAMELoader.mountFile(
            "pgm.zip",
            JSMAMELoader.fetchFile("Game File", "emulators/roms/pgm.zip")
          ),
          JSMAMELoader.mountFile(
            "neogeo.zip",
            JSMAMELoader.fetchFile("Game File", "emulators/roms/neogeo.zip")
          ),
          JSMAMELoader.mountFile(
            "kovplus.zip",
            JSMAMELoader.fetchFile("Game File", "emulators/roms/kovplus.zip")
          )
        )
      );
      emulator.start({ waitAfterDownloading: true });

No errors on the console of devtools. I could not find any clues to continue to promote the work. Does anyone can help me.

Thanks very much in advance.

I also tested some other games like tengai (emmake make SUBTARGET=psikyo SOURCES=src/mame/psikyo/psikyo.cpp -j8 NOWERROR=1), shadfrce (emmake make SUBTARGET=shadfrce SOURCES=src/mame/technos/shadfrce.cpp -j8 NOWERROR=1). Both of the two works.

        // the configuration part of code of tengai
        new JSMAMELoader(
          JSMAMELoader.driver("tengai"),
          JSMAMELoader.nativeResolution(256, 256),
          JSMAMELoader.scale(3),
          JSMAMELoader.emulatorJS("emulators/mame/psikyo.js"),
          JSMAMELoader.mountFile(
            "tengai.zip",
            JSMAMELoader.fetchFile("Game File", "emulators/roms/tengai.zip")
          )
        )

        // the configuration part of code of shadfrce
        new JSMAMELoader(
          JSMAMELoader.driver("shadfrce"),
          JSMAMELoader.nativeResolution(256, 256),
          JSMAMELoader.scale(3),
          JSMAMELoader.emulatorJS("emulators/mame/shadfrce.js"),
          JSMAMELoader.mountFile(
            "shadfrce.zip",
            JSMAMELoader.fetchFile("Game File", "emulators/roms/shadfrce.zip")
          )
        )

[Tafoid]

I think you need to re-examine which driver you are compiling to use for kovplus - that machine is not a NeoGeo game. In essence you are trying to insert a game in with a driver it is not designed for.. unless I'm missing something less obvious.

[liudonghua123]

kovplus is not a neogeo game? Oh, yes, I found it maybe a pgm game according to kovplus. Thanks, I will try to build the pgm driver and test again.

[liudonghua123]

Thanks, I tried to use emmake make SUBTARGET=pgm SOURCES=src/mame/igs/pgm.cpp -j8 NOWERROR=1 to build and use the following code, then it worked. Except the game is too stutteringly.

The driver of the support game is listed in https://raw.githubusercontent.com/mamedev/mame/master/src/mame/mame.lst.

mame-wasm-kovplus.mp4

      var emulator = new Emulator(
        document.querySelector("#canvas"),
        null,
        new JSMAMELoader(
          JSMAMELoader.driver("kovplus"),
          JSMAMELoader.nativeResolution(256, 256),
          JSMAMELoader.scale(3),
          JSMAMELoader.emulatorJS("emulators/mame/pgm.js"),
          JSMAMELoader.mountFile(
            "pgm.zip",
            JSMAMELoader.fetchFile("Bios", "emulators/roms/pgm.zip")
          ),
          JSMAMELoader.mountFile(
            "kovplus.zip",
            JSMAMELoader.fetchFile("Game File", "emulators/roms/kovplus.zip")
          )
        )
      );
      emulator.start({ waitAfterDownloading: true });

I tried emscripten build of RetroArch a few days ago. and use the mame 2003 plus kernel to run kovplus game, which is normal and playable.

Is there any optimization guidence about emscripten build of mame.

[liudonghua123]

I also tried another neogeo game mslug. I changed the driver neogeo to mslug (see db48x/emularity#57), then it worked. But it did not work for kovplus game.

        new JSMAMELoader(
          JSMAMELoader.driver("mslug"),
          JSMAMELoader.nativeResolution(256, 256),
          JSMAMELoader.scale(3),
          JSMAMELoader.emulatorJS("emulators/mame/neogeo.js"),
          JSMAMELoader.mountFile(
            "neogeo.zip",
            JSMAMELoader.fetchFile("Bios", "emulators/roms/neogeo.zip")
          ),
          JSMAMELoader.mountFile(
            "mslug.zip",
            JSMAMELoader.fetchFile("Game File", "emulators/roms/mslug.zip")
          )
        )

[liudonghua123]

Btw, how can I run the generated HTML, how to configure the bios/rom like emularity. I have build the common.{js,wasm,html} via emmake make SUBTARGET=common SOURCES=igs/pgm.cpp,neogeo/neogeo.cpp,irem/m92.cpp,psikyo/psikyo.cpp,technos/shadfrce.cpp,atari/batman.cpp -j8 NOWERROR=1. I got the following errors when I tried to run some games. I use serve cli to host these files on localhost, I even copied these files to the directory which contains mame executable with other directory or files needed by mame executable.