Gamewave libretro core

New libretro core loosely based on Vectrexia.

Compilation

To compile this libretro core use meson. Your C++ compiler must support the C++23 standard.

meson setup build # add "-Dbuildtype=debug" for a debug build
meson compile -C build

Running core

flatpak run --branch=stable --arch=x86_64 --command=retroarch org.libretro.RetroArch -L /home/halamix2/repos/reverse/gamewave/gamewave-libretro/build/gamewave_libretro.so "/home/halamix2/repos/reverse/gamewave/games/Click! (USA)/gamewave.diz"

Native;

retroarch -L /home/halamix2/repos/reverse/gamewave/gamewave-libretro/build/gamewave_libretro.so "/home/halamix2/repos/reverse/gamewave/games/Click! (USA)/gamewave.diz"

Debug

flatpak run --command=sh --devel org.libretro.RetroArch
gdb -ex=run -args /app/bin/retroarch -L /home/halamix2/repos/reverse/gamewave/gamewave-libretro/build/gamewave_libretro.so "/home/halamix2/repos/reverse/gamewave/games/Click! (USA)/gamewave.diz"

Unit tests

meson setup build # add "-Dbuildtype=debug" for a debug build
meson test -C build

What's working

• loading .diz files
• lua libraries
  • bit
  • zmath

What's not working

• everything
• lua libraries
  • all of them
  • engine
  • gl
  • iframe
  • log
  • rm - 50% - missing LoadFile / UnloadFile
  • time - 50% - issue with sleep()
• font
• video
• audio
• graphics
• input
• saves

Dependencies:

• libretro (included with git submodule)
• libpthread
• Lua 5.0.2, with Gamewave-specific changes
• zlib
• ffmpeg

Possible future deps

• SDL2
• libcdio

Flatpak integration

To use the core in the flatpak version of theretroarch:

• link the .so file to .var/app/org.libretro.RetroArch/config/retroarch/cores/
• link the .info file to /var/lib/flatpak/app/org.libretro.RetroArch/current/active/files/share/libretro/info/

TODO

• add \n to all logs to flush them as soon as they arrive, in case of fatal error?