virtualx-engine/platform/x11/joypad_linux.h
Pedro J. Estébanez 18fbdbb456 Reimplement Mutex with C++'s <mutex>
Main:
- It's now implemented thanks to `<mutex>`. No more platform-specific implementations.
- `BinaryMutex` (non-recursive) is added, as an alternative for special cases.
- Doesn't need allocation/deallocation anymore. It can live in the stack and be part of other classes.
- Because of that, it's methods are now `const` and the inner mutex is `mutable` so it can be easily used in `const` contexts.
- A no-op implementation is provided if `NO_THREADS` is defined. No more need to add `#ifdef NO_THREADS` just for this.
- `MutexLock` now takes a reference. At this point the cases of null `Mutex`es are rare. If you ever need that, just don't use `MutexLock`.
- Thread-safe utilities are therefore simpler now.

Misc.:
- `ScopedMutexLock` is dropped and replaced by `MutexLock`, because they were pretty much the same.
- Every case of lock, do-something, unlock is replaced by `MutexLock` (complex cases where it's not straightfoward are kept as as explicit lock and unlock).
- `ShaderRD` contained an `std::mutex`, which has been replaced by `Mutex`.
2020-02-26 20:40:10 +01:00

102 lines
3.7 KiB
C++

/*************************************************************************/
/* joypad_linux.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* 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. */
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/* 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 */
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/*************************************************************************/
//author: Andreas Haas <hondres, liugam3@gmail.com>
#ifndef JOYPAD_LINUX_H
#define JOYPAD_LINUX_H
#ifdef JOYDEV_ENABLED
#include "core/os/mutex.h"
#include "core/os/thread.h"
#include "main/input_default.h"
struct input_absinfo;
class JoypadLinux {
public:
JoypadLinux(InputDefault *in);
~JoypadLinux();
void process_joypads();
private:
enum {
JOYPADS_MAX = 16,
MAX_ABS = 63,
MAX_KEY = 767, // Hack because <linux/input.h> can't be included here
};
struct Joypad {
InputDefault::JoyAxis curr_axis[MAX_ABS];
int key_map[MAX_KEY];
int abs_map[MAX_ABS];
int dpad;
int fd;
String devpath;
input_absinfo *abs_info[MAX_ABS];
bool force_feedback;
int ff_effect_id;
uint64_t ff_effect_timestamp;
Joypad();
~Joypad();
void reset();
};
bool exit_udev;
Mutex joy_mutex;
Thread *joy_thread;
InputDefault *input;
Joypad joypads[JOYPADS_MAX];
Vector<String> attached_devices;
static void joy_thread_func(void *p_user);
int get_joy_from_path(String p_path) const;
void setup_joypad_properties(int p_id);
void close_joypad(int p_id = -1);
#ifdef UDEV_ENABLED
void enumerate_joypads(struct udev *p_udev);
void monitor_joypads(struct udev *p_udev);
#endif
void monitor_joypads();
void run_joypad_thread();
void open_joypad(const char *p_path);
void joypad_vibration_start(int p_id, float p_weak_magnitude, float p_strong_magnitude, float p_duration, uint64_t p_timestamp);
void joypad_vibration_stop(int p_id, uint64_t p_timestamp);
InputDefault::JoyAxis axis_correct(const input_absinfo *p_abs, int p_value) const;
};
#endif
#endif // JOYPAD_LINUX_H