mirror of
https://github.com/Ryujinx/Opentk.git
synced 2024-12-27 21:35:44 +00:00
435 lines
14 KiB
C#
435 lines
14 KiB
C#
#region License
|
|
//
|
|
// The Open Toolkit Library License
|
|
//
|
|
// Copyright (c) 2006 - 2008 the Open Toolkit library, except where noted.
|
|
//
|
|
// 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.
|
|
//
|
|
#endregion
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Diagnostics;
|
|
using System.IO;
|
|
using System.Runtime.InteropServices;
|
|
using System.Text;
|
|
using OpenTK.Input;
|
|
|
|
namespace OpenTK.Platform.Linux
|
|
{
|
|
struct LinuxJoyDetails
|
|
{
|
|
public Guid Guid;
|
|
public int FileDescriptor;
|
|
public JoystickState State;
|
|
}
|
|
|
|
// Note: despite what the name says, this class is Linux-specific.
|
|
sealed class LinuxJoystick : IJoystickDriver2
|
|
{
|
|
#region Fields
|
|
|
|
readonly object sync = new object();
|
|
|
|
readonly FileSystemWatcher watcher = new FileSystemWatcher();
|
|
|
|
readonly Dictionary<int, int> index_to_stick = new Dictionary<int, int>();
|
|
List<JoystickDevice<LinuxJoyDetails>> sticks = new List<JoystickDevice<LinuxJoyDetails>>();
|
|
|
|
bool disposed;
|
|
|
|
#endregion
|
|
|
|
#region Constructors
|
|
|
|
public LinuxJoystick()
|
|
{
|
|
string path =
|
|
Directory.Exists(JoystickPath) ? JoystickPath :
|
|
Directory.Exists(JoystickPathLegacy) ? JoystickPathLegacy :
|
|
String.Empty;
|
|
|
|
if (!String.IsNullOrEmpty(path))
|
|
{
|
|
watcher.Path = path;
|
|
|
|
watcher.Created += JoystickAdded;
|
|
watcher.Deleted += JoystickRemoved;
|
|
watcher.EnableRaisingEvents = true;
|
|
|
|
OpenJoysticks(path);
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Private Members
|
|
|
|
void OpenJoysticks(string path)
|
|
{
|
|
lock (sync)
|
|
{
|
|
foreach (string file in Directory.GetFiles(path))
|
|
{
|
|
JoystickDevice<LinuxJoyDetails> stick = OpenJoystick(file);
|
|
if (stick != null)
|
|
{
|
|
//stick.Description = String.Format("USB Joystick {0} ({1} axes, {2} buttons, {3}{0})",
|
|
//number, stick.Axis.Count, stick.Button.Count, path);
|
|
sticks.Add(stick);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int GetJoystickNumber(string path)
|
|
{
|
|
if (path.StartsWith("js"))
|
|
{
|
|
int num;
|
|
if (Int32.TryParse(path.Substring(2), out num))
|
|
{
|
|
return num;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void JoystickAdded(object sender, FileSystemEventArgs e)
|
|
{
|
|
lock (sync)
|
|
{
|
|
OpenJoystick(e.FullPath);
|
|
}
|
|
}
|
|
|
|
void JoystickRemoved(object sender, FileSystemEventArgs e)
|
|
{
|
|
lock (sync)
|
|
{
|
|
string file = Path.GetFileName(e.FullPath);
|
|
int number = GetJoystickNumber(file);
|
|
if (number != -1)
|
|
{
|
|
// Find which joystick id matches this number
|
|
int i;
|
|
for (i = 0; i < sticks.Count; i++)
|
|
{
|
|
if (sticks[i].Id == number)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i == sticks.Count)
|
|
{
|
|
Debug.Print("[Evdev] Joystick id {0} does not exist.", number);
|
|
}
|
|
else
|
|
{
|
|
CloseJoystick(sticks[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Private Members
|
|
|
|
Guid CreateGuid(JoystickDevice<LinuxJoyDetails> js, string path, int number)
|
|
{
|
|
byte[] bytes = new byte[16];
|
|
for (int i = 0; i < Math.Min(bytes.Length, js.Description.Length); i++)
|
|
{
|
|
bytes[i] = (byte)js.Description[i];
|
|
}
|
|
return new Guid(bytes);
|
|
|
|
#if false // Todo: move to /dev/input/event* from /dev/input/js*
|
|
string evdev_path = Path.Combine(Path.GetDirectoryName(path), "event" + number);
|
|
if (!File.Exists(evdev_path))
|
|
return new Guid();
|
|
|
|
int event_fd = UnsafeNativeMethods.open(evdev_path, OpenFlags.NonBlock);
|
|
if (event_fd < 0)
|
|
return new Guid();
|
|
|
|
try
|
|
{
|
|
EventInputId id;
|
|
if (UnsafeNativeMethods.ioctl(event_fd, EvdevInputId.Id, out id) < 0)
|
|
return new Guid();
|
|
|
|
int i = 0;
|
|
byte[] bus = BitConverter.GetBytes(id.BusType);
|
|
bytes[i++] = bus[0];
|
|
bytes[i++] = bus[1];
|
|
bytes[i++] = 0;
|
|
bytes[i++] = 0;
|
|
|
|
if (id.Vendor != 0 && id.Product != 0 && id.Version != 0)
|
|
{
|
|
byte[] vendor = BitConverter.GetBytes(id.Vendor);
|
|
byte[] product = BitConverter.GetBytes(id.Product);
|
|
byte[] version = BitConverter.GetBytes(id.Version);
|
|
bytes[i++] = vendor[0];
|
|
bytes[i++] = vendor[1];
|
|
bytes[i++] = 0;
|
|
bytes[i++] = 0;
|
|
bytes[i++] = product[0];
|
|
bytes[i++] = product[1];
|
|
bytes[i++] = 0;
|
|
bytes[i++] = 0;
|
|
bytes[i++] = version[0];
|
|
bytes[i++] = version[1];
|
|
bytes[i++] = 0;
|
|
bytes[i++] = 0;
|
|
}
|
|
else
|
|
{
|
|
for (; i < bytes.Length; i++)
|
|
{
|
|
bytes[i] = (byte)js.Description[i];
|
|
}
|
|
}
|
|
|
|
return new Guid(bytes);
|
|
}
|
|
finally
|
|
{
|
|
UnsafeNativeMethods.close(event_fd);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
JoystickDevice<LinuxJoyDetails> OpenJoystick(string path)
|
|
{
|
|
JoystickDevice<LinuxJoyDetails> stick = null;
|
|
|
|
int number = GetJoystickNumber(Path.GetFileName(path));
|
|
if (number >= 0)
|
|
{
|
|
int fd = -1;
|
|
try
|
|
{
|
|
fd = Libc.open(path, OpenFlags.NonBlock);
|
|
if (fd == -1)
|
|
return null;
|
|
|
|
// Check joystick driver version (must be 1.0+)
|
|
int driver_version = 0x00000800;
|
|
Libc.ioctl(fd, JoystickIoctlCode.Version, ref driver_version);
|
|
if (driver_version < 0x00010000)
|
|
return null;
|
|
|
|
// Get number of joystick axes
|
|
int axes = 0;
|
|
Libc.ioctl(fd, JoystickIoctlCode.Axes, ref axes);
|
|
|
|
// Get number of joystick buttons
|
|
int buttons = 0;
|
|
Libc.ioctl(fd, JoystickIoctlCode.Buttons, ref buttons);
|
|
|
|
stick = new JoystickDevice<LinuxJoyDetails>(number, axes, buttons);
|
|
|
|
StringBuilder sb = new StringBuilder(128);
|
|
Libc.ioctl(fd, JoystickIoctlCode.Name128, sb);
|
|
stick.Description = sb.ToString();
|
|
|
|
stick.Details.FileDescriptor = fd;
|
|
stick.Details.State.SetIsConnected(true);
|
|
stick.Details.Guid = CreateGuid(stick, path, number);
|
|
|
|
// Find the first disconnected joystick (if any)
|
|
int i;
|
|
for (i = 0; i < sticks.Count; i++)
|
|
{
|
|
if (!sticks[i].Details.State.IsConnected)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If no disconnected joystick exists, append a new slot
|
|
if (i == sticks.Count)
|
|
{
|
|
sticks.Add(stick);
|
|
}
|
|
else
|
|
{
|
|
sticks[i] = stick;
|
|
}
|
|
|
|
// Map player index to joystick
|
|
index_to_stick.Add(index_to_stick.Count, i);
|
|
|
|
Debug.Print("Found joystick on path {0}", path);
|
|
}
|
|
finally
|
|
{
|
|
if (stick == null && fd != -1)
|
|
Libc.close(fd);
|
|
}
|
|
}
|
|
|
|
return stick;
|
|
}
|
|
|
|
void CloseJoystick(JoystickDevice<LinuxJoyDetails> js)
|
|
{
|
|
Libc.close(js.Details.FileDescriptor);
|
|
js.Details.State = new JoystickState(); // clear joystick state
|
|
js.Details.FileDescriptor = -1;
|
|
|
|
// find and remove the joystick index from index_to_stick
|
|
int key = -1;
|
|
foreach (int i in index_to_stick.Keys)
|
|
{
|
|
if (sticks[index_to_stick[i]] == js)
|
|
{
|
|
key = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (index_to_stick.ContainsKey(key))
|
|
{
|
|
index_to_stick.Remove(key);
|
|
}
|
|
}
|
|
|
|
void PollJoystick(JoystickDevice<LinuxJoyDetails> js)
|
|
{
|
|
JoystickEvent e;
|
|
|
|
unsafe
|
|
{
|
|
while ((long)Libc.read(js.Details.FileDescriptor, (void*)&e, (UIntPtr)sizeof(JoystickEvent)) > 0)
|
|
{
|
|
e.Type &= ~JoystickEventType.Init;
|
|
|
|
switch (e.Type)
|
|
{
|
|
case JoystickEventType.Axis:
|
|
// Flip vertical axes so that +1 point up.
|
|
if (e.Number % 2 == 0)
|
|
js.Details.State.SetAxis((JoystickAxis)e.Number, e.Value);
|
|
else
|
|
js.Details.State.SetAxis((JoystickAxis)e.Number, unchecked((short)-e.Value));
|
|
break;
|
|
|
|
case JoystickEventType.Button:
|
|
js.Details.State.SetButton((JoystickButton)e.Number, e.Value != 0);
|
|
break;
|
|
}
|
|
|
|
js.Details.State.SetPacketNumber(unchecked((int)e.Time));
|
|
}
|
|
}
|
|
}
|
|
|
|
bool IsValid(int index)
|
|
{
|
|
return index_to_stick.ContainsKey(index);
|
|
}
|
|
|
|
static readonly string JoystickPath = "/dev/input";
|
|
static readonly string JoystickPathLegacy = "/dev";
|
|
|
|
#endregion
|
|
|
|
#region IDisposable Members
|
|
|
|
public void Dispose()
|
|
{
|
|
Dispose(true);
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
|
|
void Dispose(bool manual)
|
|
{
|
|
if (!disposed)
|
|
{
|
|
if (manual)
|
|
{
|
|
}
|
|
|
|
watcher.Dispose();
|
|
foreach (JoystickDevice<LinuxJoyDetails> js in sticks)
|
|
{
|
|
CloseJoystick(js);
|
|
}
|
|
|
|
disposed = true;
|
|
}
|
|
}
|
|
|
|
~LinuxJoystick()
|
|
{
|
|
Dispose(false);
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region IJoystickDriver2 Members
|
|
|
|
JoystickState IJoystickDriver2.GetState(int index)
|
|
{
|
|
if (IsValid(index))
|
|
{
|
|
JoystickDevice<LinuxJoyDetails> js =
|
|
sticks[index_to_stick[index]];
|
|
PollJoystick(js);
|
|
return js.Details.State;
|
|
}
|
|
return new JoystickState();
|
|
}
|
|
|
|
JoystickCapabilities IJoystickDriver2.GetCapabilities(int index)
|
|
{
|
|
JoystickCapabilities caps = new JoystickCapabilities();
|
|
if (IsValid(index))
|
|
{
|
|
JoystickDevice<LinuxJoyDetails> js = sticks[index_to_stick[index]];
|
|
caps = new JoystickCapabilities(
|
|
js.Axis.Count,
|
|
js.Button.Count,
|
|
0, // hats not supported by /dev/js
|
|
js.Details.State.IsConnected);
|
|
}
|
|
return caps;
|
|
}
|
|
|
|
Guid IJoystickDriver2.GetGuid(int index)
|
|
{
|
|
if (IsValid(index))
|
|
{
|
|
JoystickDevice<LinuxJoyDetails> js = sticks[index_to_stick[index]];
|
|
return js.Details.Guid;
|
|
}
|
|
return new Guid();
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|