diff options
Diffstat (limited to 'platform/linuxbsd/joypad_linux.cpp')
| -rw-r--r-- | platform/linuxbsd/joypad_linux.cpp | 58 |
1 files changed, 49 insertions, 9 deletions
diff --git a/platform/linuxbsd/joypad_linux.cpp b/platform/linuxbsd/joypad_linux.cpp index 0256af0a59..71c03898c8 100644 --- a/platform/linuxbsd/joypad_linux.cpp +++ b/platform/linuxbsd/joypad_linux.cpp @@ -32,6 +32,8 @@ #include "joypad_linux.h" +#include "core/os/os.h" + #include <dirent.h> #include <errno.h> #include <fcntl.h> @@ -72,24 +74,62 @@ void JoypadLinux::Joypad::reset() { events.clear(); } +#ifdef UDEV_ENABLED +// This function is derived from SDL: +// https://github.com/libsdl-org/SDL/blob/main/src/core/linux/SDL_sandbox.c#L28-L45 +static bool detect_sandbox() { + if (access("/.flatpak-info", F_OK) == 0) { + return true; + } + + // For Snap, we check multiple variables because they might be set for + // unrelated reasons. This is the same thing WebKitGTK does. + if (OS::get_singleton()->has_environment("SNAP") && OS::get_singleton()->has_environment("SNAP_NAME") && OS::get_singleton()->has_environment("SNAP_REVISION")) { + return true; + } + + if (access("/run/host/container-manager", F_OK) == 0) { + return true; + } + + return false; +} +#endif // UDEV_ENABLED + JoypadLinux::JoypadLinux(Input *in) { #ifdef UDEV_ENABLED + if (detect_sandbox()) { + // Linux binaries in sandboxes / containers need special handling because + // libudev doesn't work there. So we need to fallback to manual parsing + // of /dev/input in such case. + use_udev = false; + print_verbose("JoypadLinux: udev enabled, but detected incompatible sandboxed mode. Falling back to /dev/input to detect joypads."); + } #ifdef SOWRAP_ENABLED + else { #ifdef DEBUG_ENABLED - int dylibloader_verbose = 1; + int dylibloader_verbose = 1; #else - int dylibloader_verbose = 0; + int dylibloader_verbose = 0; #endif - use_udev = initialize_libudev(dylibloader_verbose) == 0; - if (use_udev) { - print_verbose("JoypadLinux: udev enabled and loaded successfully."); - } else { - print_verbose("JoypadLinux: udev enabled, but couldn't be loaded. Falling back to /dev/input to detect joypads."); + use_udev = initialize_libudev(dylibloader_verbose) == 0; + if (use_udev) { + if (!udev_new || !udev_unref || !udev_enumerate_new || !udev_enumerate_add_match_subsystem || !udev_enumerate_scan_devices || !udev_enumerate_get_list_entry || !udev_list_entry_get_next || !udev_list_entry_get_name || !udev_device_new_from_syspath || !udev_device_get_devnode || !udev_device_get_action || !udev_device_unref || !udev_enumerate_unref || !udev_monitor_new_from_netlink || !udev_monitor_filter_add_match_subsystem_devtype || !udev_monitor_enable_receiving || !udev_monitor_get_fd || !udev_monitor_receive_device || !udev_monitor_unref) { + // There's no API to check version, check if functions are available instead. + use_udev = false; + print_verbose("JoypadLinux: Unsupported udev library version!"); + } else { + print_verbose("JoypadLinux: udev enabled and loaded successfully."); + } + } else { + print_verbose("JoypadLinux: udev enabled, but couldn't be loaded. Falling back to /dev/input to detect joypads."); + } } -#endif +#endif // SOWRAP_ENABLED #else print_verbose("JoypadLinux: udev disabled, parsing /dev/input to detect joypads."); -#endif +#endif // UDEV_ENABLED + input = in; monitor_joypads_thread.start(monitor_joypads_thread_func, this); joypad_events_thread.start(joypad_events_thread_func, this); |