1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
using Ryujinx.Common.Configuration;
using Ryujinx.Common.Logging;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Threading;
using static SDL2.SDL;
namespace Ryujinx.SDL2.Common
{
public class SDL2Driver : IDisposable
{
private static SDL2Driver _instance;
public static SDL2Driver Instance
{
get
{
_instance ??= new SDL2Driver();
return _instance;
}
}
public static Action<Action> MainThreadDispatcher { get; set; }
private const uint SdlInitFlags = SDL_INIT_EVENTS | SDL_INIT_GAMECONTROLLER | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_VIDEO;
private bool _isRunning;
private uint _refereceCount;
private Thread _worker;
public event Action<int, int> OnJoyStickConnected;
public event Action<int> OnJoystickDisconnected;
private ConcurrentDictionary<uint, Action<SDL_Event>> _registeredWindowHandlers;
private readonly object _lock = new();
private SDL2Driver() { }
private const string SDL_HINT_JOYSTICK_HIDAPI_COMBINE_JOY_CONS = "SDL_JOYSTICK_HIDAPI_COMBINE_JOY_CONS";
public void Initialize()
{
lock (_lock)
{
_refereceCount++;
if (_isRunning)
{
return;
}
SDL_SetHint(SDL_HINT_APP_NAME, "Ryujinx");
SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS4_RUMBLE, "1");
SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS5_RUMBLE, "1");
SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_SWITCH_HOME_LED, "0");
SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_JOY_CONS, "1");
SDL_SetHint(SDL_HINT_VIDEO_ALLOW_SCREENSAVER, "1");
// NOTE: As of SDL2 2.24.0, joycons are combined by default but the motion source only come from one of them.
// We disable this behavior for now.
SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_COMBINE_JOY_CONS, "0");
if (SDL_Init(SdlInitFlags) != 0)
{
string errorMessage = $"SDL2 initialization failed with error \"{SDL_GetError()}\"";
Logger.Error?.Print(LogClass.Application, errorMessage);
throw new Exception(errorMessage);
}
// First ensure that we only enable joystick events (for connected/disconnected).
if (SDL_GameControllerEventState(SDL_IGNORE) != SDL_IGNORE)
{
Logger.Error?.PrintMsg(LogClass.Application, "Couldn't change the state of game controller events.");
}
if (SDL_JoystickEventState(SDL_ENABLE) < 0)
{
Logger.Error?.PrintMsg(LogClass.Application, $"Failed to enable joystick event polling: {SDL_GetError()}");
}
// Disable all joysticks information, we don't need them no need to flood the event queue for that.
SDL_EventState(SDL_EventType.SDL_JOYAXISMOTION, SDL_DISABLE);
SDL_EventState(SDL_EventType.SDL_JOYBALLMOTION, SDL_DISABLE);
SDL_EventState(SDL_EventType.SDL_JOYHATMOTION, SDL_DISABLE);
SDL_EventState(SDL_EventType.SDL_JOYBUTTONDOWN, SDL_DISABLE);
SDL_EventState(SDL_EventType.SDL_JOYBUTTONUP, SDL_DISABLE);
SDL_EventState(SDL_EventType.SDL_CONTROLLERSENSORUPDATE, SDL_DISABLE);
string gamepadDbPath = Path.Combine(AppDataManager.BaseDirPath, "SDL_GameControllerDB.txt");
if (File.Exists(gamepadDbPath))
{
SDL_GameControllerAddMappingsFromFile(gamepadDbPath);
}
_registeredWindowHandlers = new ConcurrentDictionary<uint, Action<SDL_Event>>();
_worker = new Thread(EventWorker);
_isRunning = true;
_worker.Start();
}
}
public bool RegisterWindow(uint windowId, Action<SDL_Event> windowEventHandler)
{
return _registeredWindowHandlers.TryAdd(windowId, windowEventHandler);
}
public void UnregisterWindow(uint windowId)
{
_registeredWindowHandlers.Remove(windowId, out _);
}
private void HandleSDLEvent(ref SDL_Event evnt)
{
if (evnt.type == SDL_EventType.SDL_JOYDEVICEADDED)
{
int deviceId = evnt.cbutton.which;
// SDL2 loves to be inconsistent here by providing the device id instead of the instance id (like on removed event), as such we just grab it and send it inside our system.
int instanceId = SDL_JoystickGetDeviceInstanceID(deviceId);
if (instanceId == -1)
{
return;
}
Logger.Debug?.Print(LogClass.Application, $"Added joystick instance id {instanceId}");
OnJoyStickConnected?.Invoke(deviceId, instanceId);
}
else if (evnt.type == SDL_EventType.SDL_JOYDEVICEREMOVED)
{
Logger.Debug?.Print(LogClass.Application, $"Removed joystick instance id {evnt.cbutton.which}");
OnJoystickDisconnected?.Invoke(evnt.cbutton.which);
}
else if (evnt.type == SDL_EventType.SDL_WINDOWEVENT || evnt.type == SDL_EventType.SDL_MOUSEBUTTONDOWN || evnt.type == SDL_EventType.SDL_MOUSEBUTTONUP)
{
if (_registeredWindowHandlers.TryGetValue(evnt.window.windowID, out Action<SDL_Event> handler))
{
handler(evnt);
}
}
}
private void EventWorker()
{
const int WaitTimeMs = 10;
using ManualResetEventSlim waitHandle = new(false);
while (_isRunning)
{
MainThreadDispatcher?.Invoke(() =>
{
while (SDL_PollEvent(out SDL_Event evnt) != 0)
{
HandleSDLEvent(ref evnt);
}
});
waitHandle.Wait(WaitTimeMs);
}
}
protected virtual void Dispose(bool disposing)
{
if (!disposing)
{
return;
}
lock (_lock)
{
if (_isRunning)
{
_refereceCount--;
if (_refereceCount == 0)
{
_isRunning = false;
_worker?.Join();
SDL_Quit();
OnJoyStickConnected = null;
OnJoystickDisconnected = null;
}
}
}
}
public void Dispose()
{
GC.SuppressFinalize(this);
Dispose(true);
}
}
}
|
