diff options
Diffstat (limited to 'platform/linuxbsd/joypad_linux.cpp')
| -rw-r--r-- | platform/linuxbsd/joypad_linux.cpp | 136 |
1 files changed, 93 insertions, 43 deletions
diff --git a/platform/linuxbsd/joypad_linux.cpp b/platform/linuxbsd/joypad_linux.cpp index bc018e366b..ab79885fb4 100644 --- a/platform/linuxbsd/joypad_linux.cpp +++ b/platform/linuxbsd/joypad_linux.cpp @@ -1,37 +1,39 @@ -/*************************************************************************/ -/* joypad_linux.cpp */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* https://godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ -/* */ -/* Permission is hereby granted, free of charge, to any person obtaining */ -/* a copy of this software and associated documentation files (the */ -/* "Software"), to deal in the Software without restriction, including */ -/* without limitation the rights to use, copy, modify, merge, publish, */ -/* distribute, sublicense, and/or sell copies of the Software, and to */ -/* permit persons to whom the Software is furnished to do so, subject to */ -/* the following conditions: */ -/* */ -/* The above copyright notice and this permission notice shall be */ -/* included in all copies or substantial portions of the Software. */ -/* */ -/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ -/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ -/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ -/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ -/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ -/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ -/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/*************************************************************************/ +/**************************************************************************/ +/* joypad_linux.cpp */ +/**************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/**************************************************************************/ +/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ +/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/**************************************************************************/ #ifdef JOYDEV_ENABLED #include "joypad_linux.h" +#include "core/os/os.h" + #include <dirent.h> #include <errno.h> #include <fcntl.h> @@ -39,7 +41,11 @@ #include <unistd.h> #ifdef UDEV_ENABLED +#ifdef SOWRAP_ENABLED #include "libudev-so_wrap.h" +#else +#include <libudev.h> +#endif #endif #define LONG_BITS (sizeof(long) * 8) @@ -59,7 +65,7 @@ JoypadLinux::Joypad::~Joypad() { } void JoypadLinux::Joypad::reset() { - dpad = HatMask::CENTER; + dpad = 0; fd = -1; for (int i = 0; i < MAX_ABS; i++) { abs_map[i] = -1; @@ -68,19 +74,57 @@ 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 +#ifdef SOWRAP_ENABLED #ifdef DEBUG_ENABLED int dylibloader_verbose = 1; #else int dylibloader_verbose = 0; #endif - use_udev = initialize_libudev(dylibloader_verbose) == 0; - if (use_udev) { - print_verbose("JoypadLinux: udev enabled and loaded successfully."); + 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."); } 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 #else print_verbose("JoypadLinux: udev disabled, parsing /dev/input to detect joypads."); #endif @@ -218,8 +262,8 @@ void JoypadLinux::monitor_joypads() { } } closedir(input_directory); + usleep(1000000); // 1s } - usleep(1000000); // 1s } void JoypadLinux::close_joypads() { @@ -485,27 +529,33 @@ void JoypadLinux::process_joypads() { case ABS_HAT0X: if (joypad_event.value != 0) { if (joypad_event.value < 0) { - joypad.dpad = (HatMask)((joypad.dpad | HatMask::LEFT) & ~HatMask::RIGHT); + joypad.dpad.set_flag(HatMask::LEFT); + joypad.dpad.clear_flag(HatMask::RIGHT); } else { - joypad.dpad = (HatMask)((joypad.dpad | HatMask::RIGHT) & ~HatMask::LEFT); + joypad.dpad.set_flag(HatMask::RIGHT); + joypad.dpad.clear_flag(HatMask::LEFT); } } else { - joypad.dpad &= ~(HatMask::LEFT | HatMask::RIGHT); + joypad.dpad.clear_flag(HatMask::LEFT); + joypad.dpad.clear_flag(HatMask::RIGHT); } - input->joy_hat(i, (HatMask)joypad.dpad); + input->joy_hat(i, joypad.dpad); break; case ABS_HAT0Y: if (joypad_event.value != 0) { if (joypad_event.value < 0) { - joypad.dpad = (HatMask)((joypad.dpad | HatMask::UP) & ~HatMask::DOWN); + joypad.dpad.set_flag(HatMask::UP); + joypad.dpad.clear_flag(HatMask::DOWN); } else { - joypad.dpad = (HatMask)((joypad.dpad | HatMask::DOWN) & ~HatMask::UP); + joypad.dpad.set_flag(HatMask::DOWN); + joypad.dpad.clear_flag(HatMask::UP); } } else { - joypad.dpad &= ~(HatMask::UP | HatMask::DOWN); + joypad.dpad.clear_flag(HatMask::UP); + joypad.dpad.clear_flag(HatMask::DOWN); } - input->joy_hat(i, (HatMask)joypad.dpad); + input->joy_hat(i, joypad.dpad); break; default: |