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Diffstat (limited to 'platform/linuxbsd/joypad_linux.cpp')
-rw-r--r--platform/linuxbsd/joypad_linux.cpp126
1 files changed, 72 insertions, 54 deletions
diff --git a/platform/linuxbsd/joypad_linux.cpp b/platform/linuxbsd/joypad_linux.cpp
index 5edaf35c50..8b6dbc4c20 100644
--- a/platform/linuxbsd/joypad_linux.cpp
+++ b/platform/linuxbsd/joypad_linux.cpp
@@ -5,8 +5,8 @@
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
+/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2021 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 */
@@ -32,13 +32,14 @@
#include "joypad_linux.h"
+#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <linux/input.h>
#include <unistd.h>
#ifdef UDEV_ENABLED
-#include <libudev.h>
+#include "libudev-so_wrap.h"
#endif
#define LONG_BITS (sizeof(long) * 8)
@@ -49,15 +50,6 @@
static const char *ignore_str = "/dev/input/js";
#endif
-JoypadLinux::Joypad::Joypad() {
- fd = -1;
- dpad = 0;
- devpath = "";
- for (int i = 0; i < MAX_ABS; i++) {
- abs_info[i] = nullptr;
- }
-}
-
JoypadLinux::Joypad::~Joypad() {
for (int i = 0; i < MAX_ABS; i++) {
if (abs_info[i]) {
@@ -70,7 +62,7 @@ void JoypadLinux::Joypad::reset() {
dpad = 0;
fd = -1;
- Input::JoyAxis jx;
+ Input::JoyAxisValue jx;
jx.min = -1;
jx.value = 0.0f;
for (int i = 0; i < MAX_ABS; i++) {
@@ -80,15 +72,28 @@ void JoypadLinux::Joypad::reset() {
}
JoypadLinux::JoypadLinux(Input *in) {
- exit_udev = false;
+#ifdef UDEV_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.");
+ } else {
+ print_verbose("JoypadLinux: udev enabled, but couldn't be loaded. Falling back to /dev/input to detect joypads.");
+ }
+#else
+ print_verbose("JoypadLinux: udev disabled, parsing /dev/input to detect joypads.");
+#endif
input = in;
- joy_thread = Thread::create(joy_thread_func, this);
+ joy_thread.start(joy_thread_func, this);
}
JoypadLinux::~JoypadLinux() {
- exit_udev = true;
- Thread::wait_to_finish(joy_thread);
- memdelete(joy_thread);
+ exit_monitor.set();
+ joy_thread.wait_to_finish();
close_joypad();
}
@@ -101,11 +106,20 @@ void JoypadLinux::joy_thread_func(void *p_user) {
void JoypadLinux::run_joypad_thread() {
#ifdef UDEV_ENABLED
- udev *_udev = udev_new();
- ERR_FAIL_COND(!_udev);
- enumerate_joypads(_udev);
- monitor_joypads(_udev);
- udev_unref(_udev);
+ if (use_udev) {
+ udev *_udev = udev_new();
+ if (!_udev) {
+ use_udev = false;
+ ERR_PRINT("Failed getting an udev context, falling back to parsing /dev/input.");
+ monitor_joypads();
+ } else {
+ enumerate_joypads(_udev);
+ monitor_joypads(_udev);
+ udev_unref(_udev);
+ }
+ } else {
+ monitor_joypads();
+ }
#else
monitor_joypads();
#endif
@@ -146,7 +160,7 @@ void JoypadLinux::monitor_joypads(udev *p_udev) {
udev_monitor_enable_receiving(mon);
int fd = udev_monitor_get_fd(mon);
- while (!exit_udev) {
+ while (!exit_monitor.is_set()) {
fd_set fds;
struct timeval tv;
int ret;
@@ -164,17 +178,18 @@ void JoypadLinux::monitor_joypads(udev *p_udev) {
select() ensured that this will not block. */
dev = udev_monitor_receive_device(mon);
- if (dev && udev_device_get_devnode(dev) != 0) {
+ if (dev && udev_device_get_devnode(dev) != nullptr) {
MutexLock lock(joy_mutex);
String action = udev_device_get_action(dev);
const char *devnode = udev_device_get_devnode(dev);
if (devnode) {
String devnode_str = devnode;
if (devnode_str.find(ignore_str) == -1) {
- if (action == "add")
+ if (action == "add") {
open_joypad(devnode);
- else if (String(action) == "remove")
+ } else if (String(action) == "remove") {
close_joypad(get_joy_from_path(devnode));
+ }
}
}
@@ -188,17 +203,27 @@ void JoypadLinux::monitor_joypads(udev *p_udev) {
#endif
void JoypadLinux::monitor_joypads() {
- while (!exit_udev) {
+ while (!exit_monitor.is_set()) {
{
MutexLock lock(joy_mutex);
- for (int i = 0; i < 32; i++) {
+ DIR *input_directory;
+ input_directory = opendir("/dev/input");
+ if (input_directory) {
+ struct dirent *current;
char fname[64];
- sprintf(fname, "/dev/input/event%d", i);
- if (attached_devices.find(fname) == -1) {
- open_joypad(fname);
+
+ while ((current = readdir(input_directory)) != nullptr) {
+ if (strncmp(current->d_name, "event", 5) != 0) {
+ continue;
+ }
+ sprintf(fname, "/dev/input/%.*s", 16, current->d_name);
+ if (attached_devices.find(fname) == -1) {
+ open_joypad(fname);
+ }
}
}
+ closedir(input_directory);
}
usleep(1000000); // 1s
}
@@ -311,16 +336,9 @@ void JoypadLinux::open_joypad(const char *p_path) {
return;
}
- //check if the device supports basic gamepad events, prevents certain keyboards from
- //being detected as joypads
+ // Check if the device supports basic gamepad events
if (!(test_bit(EV_KEY, evbit) && test_bit(EV_ABS, evbit) &&
- (test_bit(ABS_X, absbit) || test_bit(ABS_Y, absbit) || test_bit(ABS_HAT0X, absbit) ||
- test_bit(ABS_GAS, absbit) || test_bit(ABS_RUDDER, absbit)) &&
- (test_bit(BTN_A, keybit) || test_bit(BTN_THUMBL, keybit) ||
- test_bit(BTN_TRIGGER, keybit) || test_bit(BTN_1, keybit))) &&
- !(test_bit(EV_ABS, evbit) &&
- test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit) &&
- test_bit(ABS_RX, absbit) && test_bit(ABS_RY, absbit))) {
+ test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit))) {
close(fd);
return;
}
@@ -411,10 +429,10 @@ void JoypadLinux::joypad_vibration_stop(int p_id, uint64_t p_timestamp) {
joy.ff_effect_timestamp = p_timestamp;
}
-Input::JoyAxis JoypadLinux::axis_correct(const input_absinfo *p_abs, int p_value) const {
+Input::JoyAxisValue JoypadLinux::axis_correct(const input_absinfo *p_abs, int p_value) const {
int min = p_abs->minimum;
int max = p_abs->maximum;
- Input::JoyAxis jx;
+ Input::JoyAxisValue jx;
if (min < 0) {
jx.min = -1;
@@ -457,7 +475,7 @@ void JoypadLinux::process_joypads() {
switch (ev.type) {
case EV_KEY:
- input->joy_button(i, joy->key_map[ev.code], ev.value);
+ input->joy_button(i, (JoyButton)joy->key_map[ev.code], ev.value);
break;
case EV_ABS:
@@ -466,29 +484,29 @@ void JoypadLinux::process_joypads() {
case ABS_HAT0X:
if (ev.value != 0) {
if (ev.value < 0) {
- joy->dpad |= Input::HAT_MASK_LEFT;
+ joy->dpad = (HatMask)((joy->dpad | HatMask::HAT_MASK_LEFT) & ~HatMask::HAT_MASK_RIGHT);
} else {
- joy->dpad |= Input::HAT_MASK_RIGHT;
+ joy->dpad = (HatMask)((joy->dpad | HatMask::HAT_MASK_RIGHT) & ~HatMask::HAT_MASK_LEFT);
}
} else {
- joy->dpad &= ~(Input::HAT_MASK_LEFT | Input::HAT_MASK_RIGHT);
+ joy->dpad &= ~(HatMask::HAT_MASK_LEFT | HatMask::HAT_MASK_RIGHT);
}
- input->joy_hat(i, joy->dpad);
+ input->joy_hat(i, (HatMask)joy->dpad);
break;
case ABS_HAT0Y:
if (ev.value != 0) {
if (ev.value < 0) {
- joy->dpad |= Input::HAT_MASK_UP;
+ joy->dpad = (HatMask)((joy->dpad | HatMask::HAT_MASK_UP) & ~HatMask::HAT_MASK_DOWN);
} else {
- joy->dpad |= Input::HAT_MASK_DOWN;
+ joy->dpad = (HatMask)((joy->dpad | HatMask::HAT_MASK_DOWN) & ~HatMask::HAT_MASK_UP);
}
} else {
- joy->dpad &= ~(Input::HAT_MASK_UP | Input::HAT_MASK_DOWN);
+ joy->dpad &= ~(HatMask::HAT_MASK_UP | HatMask::HAT_MASK_DOWN);
}
- input->joy_hat(i, joy->dpad);
+ input->joy_hat(i, (HatMask)joy->dpad);
break;
default:
@@ -496,7 +514,7 @@ void JoypadLinux::process_joypads() {
return;
}
if (joy->abs_map[ev.code] != -1 && joy->abs_info[ev.code]) {
- Input::JoyAxis value = axis_correct(joy->abs_info[ev.code], ev.value);
+ Input::JoyAxisValue value = axis_correct(joy->abs_info[ev.code], ev.value);
joy->curr_axis[joy->abs_map[ev.code]] = value;
}
break;
@@ -508,7 +526,7 @@ void JoypadLinux::process_joypads() {
for (int j = 0; j < MAX_ABS; j++) {
int index = joy->abs_map[j];
if (index != -1) {
- input->joy_axis(i, index, joy->curr_axis[index]);
+ input->joy_axis(i, (JoyAxis)index, joy->curr_axis[index]);
}
}
if (len == 0 || (len < 0 && errno != EAGAIN)) {
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-01 04:52:53 +0000