mirror of
https://github.com/Ryujinx/Opentk.git
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69e2f36725
Reverted changes to GLControl.cs Updated sln to not build OpenTK.GLControl in MINIMAL mode
720 lines
24 KiB
C#
720 lines
24 KiB
C#
#region License
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//
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// LinuxKeyboardLibInput.cs
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//
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// Author:
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// Stefanos A. <stapostol@gmail.com>
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//
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// Copyright (c) 2006-2014 Stefanos Apostolopoulos
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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#if !MINIMAL
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using System.Drawing;
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#endif
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using System.Runtime.InteropServices;
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using System.Threading;
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using OpenTK.Input;
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namespace OpenTK.Platform.Linux
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{
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class LinuxInput : IKeyboardDriver2, IMouseDriver2, IDisposable
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{
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class DeviceBase
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{
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readonly IntPtr Device;
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string name;
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string output;
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string logical_seat;
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string physical_seat;
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public DeviceBase(IntPtr device, int id)
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{
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Device = device;
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Id = id;
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}
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public int Id
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{
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get
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{
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return GetId(Device);
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}
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set
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{
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LibInput.DeviceSetData(Device, (IntPtr)value);
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}
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}
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public string Name
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{
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get
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{
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name = name ?? LibInput.DeviceGetName(Device);
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return name;
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}
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}
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public IntPtr Seat
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{
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get
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{
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return LibInput.DeviceGetSeat(Device);
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}
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}
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public string LogicalSeatName
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{
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get
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{
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logical_seat = logical_seat ?? LibInput.SeatGetLogicalName(Seat);
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return logical_seat;
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}
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}
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public string PhysicalSeatName
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{
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get
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{
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physical_seat = physical_seat ?? LibInput.SeatGetPhysicalName(Seat);
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return physical_seat;
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}
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}
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public string Output
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{
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get
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{
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output = output ?? LibInput.DeviceGetOutputName(Device);
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return output;
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}
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}
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}
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class KeyboardDevice : DeviceBase
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{
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public KeyboardState State;
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public KeyboardDevice(IntPtr device, int id)
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: base(device, id)
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{
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}
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}
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class MouseDevice : DeviceBase
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{
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public MouseState State;
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public MouseDevice(IntPtr device, int id)
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: base(device, id)
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{
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}
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}
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static readonly object Sync = new object();
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static readonly Key[] KeyMap = Evdev.KeyMap;
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static long DeviceFDCount;
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// libinput returns various devices with keyboard/pointer even though
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// they are not traditional keyboards/mice (for example "Integrated Camera"
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// can be detected as a keyboard.)
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// Since there is no API to retrieve actual device capabilities,
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// we add all detected devices to a "candidate" list and promote them
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// to an actual keyboard/mouse only when we receive a valid input event.
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// This is far from optimal, but it appears to be the only viable solution
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// unless a new API is added to libinput.
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DeviceCollection<KeyboardDevice> KeyboardCandidates = new DeviceCollection<KeyboardDevice>();
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DeviceCollection<MouseDevice> MouseCandidates = new DeviceCollection<MouseDevice>();
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DeviceCollection<KeyboardDevice> Keyboards = new DeviceCollection<KeyboardDevice>();
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DeviceCollection<MouseDevice> Mice = new DeviceCollection<MouseDevice>();
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// Todo: do we need to maintain the geometry of each display separately?
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Rectangle bounds;
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// Global mouse cursor state
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Vector2 CursorPosition = Vector2.Zero;
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// Global mouse cursor offset (used for emulating SetPosition)
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Vector2 CursorOffset = Vector2.Zero;
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IntPtr udev;
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IntPtr input_context;
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InputInterface input_interface = new InputInterface(
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OpenRestricted, CloseRestricted);
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int fd;
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Thread input_thread;
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long exit;
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public LinuxInput()
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{
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Debug.Print("[Linux] Initializing {0}", GetType().Name);
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Debug.Indent();
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try
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{
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Semaphore ready = new Semaphore(0, 1);
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input_thread = new Thread(InputThreadLoop);
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input_thread.IsBackground = true;
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input_thread.Start(ready);
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// Wait until the input thread is ready.
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// Note: it would be nicer if we could avoid this.
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// however we need to marshal errors back to the caller
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// as exceptions.
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// Todo: in a future version, we should add an "Application" object
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// to handle all communication with the OS (including event processing.)
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// Once we do that, we can remove all separate input threads.
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ready.WaitOne();
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if (exit != 0)
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{
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throw new NotSupportedException();
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}
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}
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finally
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{
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Debug.Print("Initialization {0}", exit == 0 ?
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"complete" : "failed");
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Debug.Unindent();
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}
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}
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#region Private Members
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static CloseRestrictedCallback CloseRestricted = CloseRestrictedHandler;
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static void CloseRestrictedHandler(int fd, IntPtr data)
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{
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Debug.Print("[Input] Closing fd {0}", fd);
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int ret = Libc.close(fd);
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if (ret < 0)
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{
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Debug.Print("[Input] Failed to close fd {0}. Error: {1}", fd, ret);
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}
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else
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{
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Interlocked.Decrement(ref DeviceFDCount);
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}
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}
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static OpenRestrictedCallback OpenRestricted = OpenRestrictedHandler;
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static int OpenRestrictedHandler(IntPtr path, int flags, IntPtr data)
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{
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int fd = Libc.open(path, (OpenFlags)flags);
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Debug.Print("[Input] Opening '{0}' with flags {1}. fd:{2}",
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Marshal.PtrToStringAnsi(path), (OpenFlags)flags, fd);
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if (fd >= 0)
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{
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Interlocked.Increment(ref DeviceFDCount);
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}
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return fd;
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}
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void InputThreadLoop(object semaphore)
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{
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Debug.Print("[Input] Running on thread {0}", Thread.CurrentThread.ManagedThreadId);
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Setup();
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// Inform the parent thread that initialization has completed successfully
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(semaphore as Semaphore).Release();
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Debug.Print("[Input] Released main thread.", input_context);
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// Use a blocking poll for input messages, in order to reduce CPU usage
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PollFD poll_fd = new PollFD();
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poll_fd.fd = fd;
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poll_fd.events = PollFlags.In;
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Debug.Print("[Input] Created PollFD({0}, {1})", poll_fd.fd, poll_fd.events);
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Debug.Print("[Input] Entering input loop.", poll_fd.fd, poll_fd.events);
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while (Interlocked.Read(ref exit) == 0)
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{
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int ret = Libc.poll(ref poll_fd, 1, -1);
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ErrorNumber error = (ErrorNumber)Marshal.GetLastWin32Error();
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bool is_error =
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ret < 0 && !(error == ErrorNumber.Again || error == ErrorNumber.Interrupted) ||
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(poll_fd.revents & (PollFlags.Hup | PollFlags.Error | PollFlags.Invalid)) != 0;
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// We need to query the desktop bounds in order to position the mouse cursor correctly.
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// This value will be used for the current bunch of input events. If a monitor changes
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// resolution in the meantime, we might be slightly off in our calculations - this error
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// will be corrected when the next bunch of input events arrives.
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UpdateDisplayBounds();
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if (ret > 0 && (poll_fd.revents & (PollFlags.In | PollFlags.Pri)) != 0)
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{
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ProcessEvents(input_context);
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}
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if (is_error)
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{
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Debug.Print("[Input] Exiting input loop {0} due to poll error [ret:{1} events:{2}]. Error: {3}.",
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input_thread.ManagedThreadId, ret, poll_fd.revents, error);
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Interlocked.Increment(ref exit);
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}
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}
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Debug.Print("[Input] Exited input loop.", poll_fd.fd, poll_fd.events);
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}
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void UpdateDisplayBounds()
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{
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bounds = Rectangle.Empty;
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for (DisplayIndex i = DisplayIndex.First; i < DisplayIndex.Sixth; i++)
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{
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DisplayDevice display = DisplayDevice.GetDisplay(i);
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if (display != null)
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{
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bounds = Rectangle.Union(bounds, display.Bounds);
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}
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}
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}
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void UpdateCursor()
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{
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Point p = new Point(
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(int)Math.Round(CursorPosition.X + CursorOffset.X),
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(int)Math.Round(CursorPosition.Y + CursorOffset.Y));
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DisplayDevice display = DisplayDevice.FromPoint(p.X, p.Y) ?? DisplayDevice.Default;
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if (display != null)
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{
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LinuxDisplay d = (LinuxDisplay)display.Id;
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Drm.MoveCursor(d.FD, d.Id, p.X, p.Y);
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}
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}
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void Setup()
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{
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// Todo: add static path fallback when udev is not installed.
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udev = Udev.New();
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if (udev == IntPtr.Zero)
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{
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Debug.Print("[Input] Udev.New() failed.");
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Interlocked.Increment(ref exit);
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return;
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}
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Debug.Print("[Input] Udev.New() = {0:x}", udev);
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input_context = LibInput.CreateContext(input_interface, IntPtr.Zero, udev, "seat0");
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if (input_context == IntPtr.Zero)
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{
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Debug.Print("[Input] LibInput.CreateContext({0:x}) failed.", udev);
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Interlocked.Increment(ref exit);
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return;
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}
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Debug.Print("[Input] LibInput.CreateContext({0:x}) = {1:x}", udev, input_context);
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fd = LibInput.GetFD(input_context);
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if (fd < 0)
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{
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Debug.Print("[Input] LibInput.GetFD({0:x}) failed.", input_context);
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Interlocked.Increment(ref exit);
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return;
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}
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Debug.Print("[Input] LibInput.GetFD({0:x}) = {1}.", input_context, fd);
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ProcessEvents(input_context);
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LibInput.Resume(input_context);
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Debug.Print("[Input] LibInput.Resume({0:x})", input_context);
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if (Interlocked.Read(ref DeviceFDCount) <= 0)
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{
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Debug.Print("[Error] Failed to open any input devices.");
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Debug.Print("[Error] Ensure that you have access to '/dev/input/event*'.");
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Interlocked.Increment(ref exit);
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}
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}
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void ProcessEvents(IntPtr input_context)
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{
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// Process all events in the event queue
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while (true)
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{
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// Data available
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int ret = LibInput.Dispatch(input_context);
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if (ret != 0)
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{
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Debug.Print("[Input] LibInput.Dispatch({0:x}) failed. Error: {1}",
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input_context, ret);
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break;
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}
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IntPtr pevent = LibInput.GetEvent(input_context);
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if (pevent == IntPtr.Zero)
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{
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break;
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}
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IntPtr device = LibInput.GetDevice(pevent);
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InputEventType type = LibInput.GetEventType(pevent);
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lock (Sync)
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{
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switch (type)
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{
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case InputEventType.DeviceAdded:
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HandleDeviceAdded(input_context, device);
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break;
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case InputEventType.DeviceRemoved:
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HandleDeviceRemoved(input_context, device);
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break;
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case InputEventType.KeyboardKey:
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HandleKeyboard(GetKeyboard(device), LibInput.GetKeyboardEvent(pevent));
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break;
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case InputEventType.PointerAxis:
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HandlePointerAxis(GetMouse(device), LibInput.GetPointerEvent(pevent));
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break;
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case InputEventType.PointerButton:
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HandlePointerButton(GetMouse(device), LibInput.GetPointerEvent(pevent));
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break;
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case InputEventType.PointerMotion:
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HandlePointerMotion(GetMouse(device), LibInput.GetPointerEvent(pevent));
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break;
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case InputEventType.PointerMotionAbsolute:
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HandlePointerMotionAbsolute(GetMouse(device), LibInput.GetPointerEvent(pevent));
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break;
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}
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}
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LibInput.DestroyEvent(pevent);
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}
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}
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void HandleDeviceAdded(IntPtr context, IntPtr device)
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{
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if (LibInput.DeviceHasCapability(device, DeviceCapability.Keyboard))
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{
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KeyboardDevice keyboard = new KeyboardDevice(device, Keyboards.Count);
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KeyboardCandidates.Add(keyboard.Id, keyboard);
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Debug.Print("[Input] Added keyboard device {0} '{1}' on '{2}' ('{3}')",
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keyboard.Id, keyboard.Name, keyboard.LogicalSeatName, keyboard.PhysicalSeatName);
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}
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if (LibInput.DeviceHasCapability(device, DeviceCapability.Mouse))
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{
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MouseDevice mouse = new MouseDevice(device, Mice.Count);
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MouseCandidates.Add(mouse.Id, mouse);
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Debug.Print("[Input] Added mouse device {0} '{1}' on '{2}' ('{3}')",
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mouse.Id, mouse.Name, mouse.LogicalSeatName, mouse.PhysicalSeatName);
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}
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if (LibInput.DeviceHasCapability(device, DeviceCapability.Touch))
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{
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Debug.Print("[Input] Todo: touch device.");
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}
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}
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void HandleDeviceRemoved(IntPtr context, IntPtr device)
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{
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if (LibInput.DeviceHasCapability(device, DeviceCapability.Keyboard))
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{
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int id = GetId(device);
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Keyboards.TryRemove(id);
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KeyboardCandidates.TryRemove(id);
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}
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if (LibInput.DeviceHasCapability(device, DeviceCapability.Mouse))
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{
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int id = GetId(device);
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Mice.TryRemove(id);
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MouseCandidates.TryRemove(id);
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}
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}
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void HandleKeyboard(KeyboardDevice device, KeyboardEvent e)
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{
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if (device != null)
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{
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device.State.SetIsConnected(true);
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Debug.Print("[Input] Added keyboard {0}", device.Id);
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Key key = Key.Unknown;
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uint raw = e.Key;
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if (raw >= 0 && raw < KeyMap.Length)
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{
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key = KeyMap[raw];
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}
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if (key == Key.Unknown)
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{
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Debug.Print("[Linux] Unknown key with code '{0}'", raw);
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}
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device.State.SetKeyState(key, e.KeyState == KeyState.Pressed);
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}
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}
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void HandlePointerAxis(MouseDevice mouse, PointerEvent e)
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{
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if (mouse != null)
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{
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mouse.State.SetIsConnected(true);
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double value = e.AxisValue;
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PointerAxis axis = e.Axis;
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switch (axis)
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{
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case PointerAxis.HorizontalScroll:
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mouse.State.SetScrollRelative((float)value, 0);
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break;
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case PointerAxis.VerticalScroll:
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mouse.State.SetScrollRelative(0, (float)value);
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break;
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default:
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Debug.Print("[Input] Unknown scroll axis {0}.", axis);
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break;
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}
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}
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}
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void HandlePointerButton(MouseDevice mouse, PointerEvent e)
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{
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if (mouse != null)
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{
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mouse.State.SetIsConnected(true);
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MouseButton button = Evdev.GetMouseButton(e.Button);
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ButtonState state = e.ButtonState;
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mouse.State[(MouseButton)button] = state == ButtonState.Pressed;
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}
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}
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void HandlePointerMotion(MouseDevice mouse, PointerEvent e)
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{
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Vector2 delta = new Vector2((float)e.X, (float)e.Y);
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if (mouse != null)
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{
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mouse.State.SetIsConnected(true);
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mouse.State.Position += delta;
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}
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CursorPosition = new Vector2(
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MathHelper.Clamp(CursorPosition.X + delta.X, bounds.Left, bounds.Right - 1),
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MathHelper.Clamp(CursorPosition.Y + delta.Y, bounds.Top, bounds.Bottom - 1));
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UpdateCursor();
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}
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void HandlePointerMotionAbsolute(MouseDevice mouse, PointerEvent e)
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{
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if (mouse != null)
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{
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mouse.State.SetIsConnected(true);
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mouse.State.Position = new Vector2(e.X, e.Y);
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}
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CursorPosition = new Vector2(
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e.TransformedX(bounds.Width),
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e.TransformedY(bounds.Height));
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UpdateCursor();
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}
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static int GetId(IntPtr device)
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{
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return LibInput.DeviceGetData(device).ToInt32();
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}
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KeyboardDevice GetKeyboard(IntPtr device)
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{
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int id = GetId(device);
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KeyboardDevice keyboard = KeyboardCandidates.FromHardwareId(id);
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if (keyboard != null)
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{
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Keyboards.Add(id, keyboard);
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}
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else
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{
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Debug.Print("[Input] Keyboard {0} does not exist in device list.", id);
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}
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return keyboard;
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}
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MouseDevice GetMouse(IntPtr device)
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{
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int id = GetId(device);
|
|
MouseDevice mouse = MouseCandidates.FromHardwareId(id);
|
|
if (mouse != null)
|
|
{
|
|
Mice.Add(id, mouse);
|
|
}
|
|
else
|
|
{
|
|
Debug.Print("[Input] Mouse {0} does not exist in device list.", id);
|
|
}
|
|
return mouse;
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region IKeyboardDriver2 implementation
|
|
|
|
KeyboardState IKeyboardDriver2.GetState()
|
|
{
|
|
lock (Sync)
|
|
{
|
|
KeyboardState state = new KeyboardState();
|
|
foreach (KeyboardDevice keyboard in Keyboards)
|
|
{
|
|
state.MergeBits(keyboard.State);
|
|
}
|
|
return state;
|
|
}
|
|
}
|
|
|
|
KeyboardState IKeyboardDriver2.GetState(int index)
|
|
{
|
|
lock (Sync)
|
|
{
|
|
KeyboardDevice device = Keyboards.FromIndex(index);
|
|
if (device != null)
|
|
{
|
|
return device.State;
|
|
}
|
|
else
|
|
{
|
|
return new KeyboardState();
|
|
}
|
|
}
|
|
}
|
|
|
|
string IKeyboardDriver2.GetDeviceName(int index)
|
|
{
|
|
lock (Sync)
|
|
{
|
|
KeyboardDevice device = Keyboards.FromIndex(index);
|
|
if (device != null)
|
|
{
|
|
return device.Name;
|
|
}
|
|
else
|
|
{
|
|
return String.Empty;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region IMouseDriver2 implementation
|
|
|
|
MouseState IMouseDriver2.GetState()
|
|
{
|
|
lock (Sync)
|
|
{
|
|
MouseState state = new MouseState();
|
|
foreach (MouseDevice mouse in Mice)
|
|
{
|
|
state.MergeBits(mouse.State);
|
|
}
|
|
return state;
|
|
}
|
|
}
|
|
|
|
MouseState IMouseDriver2.GetState(int index)
|
|
{
|
|
lock (Sync)
|
|
{
|
|
MouseDevice device = Mice.FromIndex(index);
|
|
if (device != null)
|
|
{
|
|
return device.State;
|
|
}
|
|
else
|
|
{
|
|
return new MouseState();
|
|
}
|
|
}
|
|
}
|
|
|
|
void IMouseDriver2.SetPosition(double x, double y)
|
|
{
|
|
// Todo: this does not appear to be supported in libinput.
|
|
// We will have to emulate this in the KMS mouse rendering code.
|
|
CursorOffset = new Vector2(
|
|
(float)x - CursorPosition.X,
|
|
(float)y - CursorPosition.Y);
|
|
UpdateCursor();
|
|
}
|
|
|
|
MouseState IMouseDriver2.GetCursorState()
|
|
{
|
|
MouseState state = (this as IMouseDriver2).GetState();
|
|
state.Position = CursorPosition + CursorOffset;
|
|
return state;
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region IDisposable implementation
|
|
|
|
public void Dispose()
|
|
{
|
|
Dispose(true);
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
|
|
void Dispose(bool disposing)
|
|
{
|
|
if (disposing)
|
|
{
|
|
if (input_context != IntPtr.Zero)
|
|
{
|
|
Debug.Print("[Input] Destroying libinput context");
|
|
LibInput.Suspend(input_context);
|
|
Interlocked.Increment(ref exit);
|
|
|
|
LibInput.DestroyContext(input_context);
|
|
input_context = IntPtr.Zero;
|
|
}
|
|
|
|
if (udev != IntPtr.Zero)
|
|
{
|
|
Debug.Print("[Input] Destroying udev context");
|
|
Udev.Destroy(udev);
|
|
udev = IntPtr.Zero;
|
|
}
|
|
|
|
input_interface = null;
|
|
}
|
|
else
|
|
{
|
|
Debug.Print("[Input] {0} leaked. Did you forget to call Dispose()?", GetType().FullName);
|
|
}
|
|
}
|
|
|
|
~LinuxInput()
|
|
{
|
|
Dispose(false);
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|
|
|