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Use proper VFS version. (#248)

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VFS callbacks fail since it requires V2, which includes vfs_truncate. Otherwise it falls back to libretro-common code. Current VFS wrapping code in libretro-common needs V2 since vfs_truncate's callback is set.

https://github.com/libretro/libretro-common/blob/master/streams/file_stream.c#L65

Now VFS callbacks work properly in frontends that support them. Otherwise a hack of setting "cb->required_interface_version = 2" in frontend works. Only cores, according to specs, are meant to set the required version.
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mudlord 2023-02-04 06:49:10 +11:00 committed by GitHub
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commit 4c64b5285b
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libgambatte/libretro/libretro.cpp
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@ -1677,7 +1677,7 @@ void retro_set_environment(retro_environment_t cb)
}
#endif
vfs_iface_info.required_interface_version = 1;
vfs_iface_info.required_interface_version = 2;
vfs_iface_info.iface = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VFS_INTERFACE, &vfs_iface_info))
filestream_vfs_init(&vfs_iface_info);