mirror of
https://github.com/Ryujinx/Opentk.git
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526 lines
22 KiB
C#
526 lines
22 KiB
C#
#region License
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//
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// The Open Toolkit Library License
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//
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// Copyright (c) 2006 - 2010 the Open Toolkit library.
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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 to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do
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// 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 all
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// 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,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN 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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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.X11
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{
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// Todo: multi-mouse support. Right now we aggregate all data into a single mouse device.
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// This should be easy: just read the device id and route the data to the correct device.
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sealed class XI2Mouse : IMouseDriver2, IDisposable
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{
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const XEventName ExitEvent = XEventName.LASTEvent + 1;
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readonly Thread ProcessingThread;
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bool disposed;
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class XIMouse
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{
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public MouseState State;
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public XIDeviceInfo DeviceInfo;
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public XIScrollClassInfo ScrollX = new XIScrollClassInfo { number = -1 };
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public XIScrollClassInfo ScrollY = new XIScrollClassInfo { number = -1 };
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public XIValuatorClassInfo MotionX = new XIValuatorClassInfo { number = -1 };
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public XIValuatorClassInfo MotionY = new XIValuatorClassInfo { number = -1 };
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}
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// Atoms
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//static readonly IntPtr ButtonLeft;
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//static readonly IntPtr ButtonMiddle;
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////static readonly IntPtr ButtonRight;
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//static readonly IntPtr ButtonWheelUp;
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//static readonly IntPtr ButtonWheelDown;
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//static readonly IntPtr ButtonWheelLeft;
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//static readonly IntPtr ButtonWheelRight;
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static readonly IntPtr RelX;
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static readonly IntPtr RelY;
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//static readonly IntPtr RelHorizScroll;
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//static readonly IntPtr RelVertScroll;
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//static readonly IntPtr RelHorizWheel;
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//static readonly IntPtr RelVertWheel;
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long cursor_x, cursor_y; // For GetCursorState()
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List<XIMouse> devices = new List<XIMouse>(); // List of connected mice
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Dictionary<int, int> rawids = new Dictionary<int, int>(); // maps hardware device ids to XIMouse ids
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internal readonly X11WindowInfo window;
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internal static int XIOpCode { get; private set; }
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internal static int XIVersion { get; private set; }
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static readonly Functions.EventPredicate PredicateImpl = IsEventValid;
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readonly IntPtr Predicate = Marshal.GetFunctionPointerForDelegate(PredicateImpl);
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// Store information on a mouse warp event, so it can be ignored.
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struct MouseWarp : IEquatable<MouseWarp>
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{
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public MouseWarp(double x, double y) { X = x; Y = y; }
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double X, Y;
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public bool Equals(MouseWarp warp) { return X == warp.X && Y == warp.Y; }
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}
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MouseWarp? mouse_warp_event;
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int mouse_warp_event_count;
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static XI2Mouse()
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{
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using (new XLock(API.DefaultDisplay))
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{
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// Mouse
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//ButtonLeft = Functions.XInternAtom(API.DefaultDisplay, "Button Left", false);
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//ButtonMiddle = Functions.XInternAtom(API.DefaultDisplay, "Button Middle", false);
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//ButtonRight = Functions.XInternAtom(API.DefaultDisplay, "Button Right", false);
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//ButtonWheelUp = Functions.XInternAtom(API.DefaultDisplay, "Button Wheel Up", false);
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//ButtonWheelDown = Functions.XInternAtom(API.DefaultDisplay, "Button Wheel Down", false);
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//ButtonWheelLeft = Functions.XInternAtom(API.DefaultDisplay, "Button Horiz Wheel Left", false);
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//ButtonWheelRight = Functions.XInternAtom(API.DefaultDisplay, "Button Horiz Wheel Right", false);
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RelX = Functions.XInternAtom(API.DefaultDisplay, "Rel X", false);
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RelY = Functions.XInternAtom(API.DefaultDisplay, "Rel Y", false);
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//RelHorizWheel = Functions.XInternAtom(API.DefaultDisplay, "Rel Horiz Wheel", false);
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//RelVertWheel = Functions.XInternAtom(API.DefaultDisplay, "Rel Vert Wheel", false);
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//RelHorizScroll = Functions.XInternAtom(API.DefaultDisplay, "Rel Horiz Scroll", false);
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//RelVertScroll = Functions.XInternAtom(API.DefaultDisplay, "Rel Vert Scroll", false);
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// Multitouch
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//TouchX = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Position X", false);
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//TouchY = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Position Y", false);
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//TouchMajor = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Touch Major", false);
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//TouchMinor = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Touch Minor", false);
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//TouchPressure = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Pressure", false);
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//TouchId = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Tracking ID", false);
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//TouchMaxContacts = Functions.XInternAtom(API.DefaultDisplay, "Max Contacts", false);
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}
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}
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public XI2Mouse()
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{
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Debug.WriteLine("Using XI2Mouse.");
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window = new X11WindowInfo();
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window.Display = Functions.XOpenDisplay(IntPtr.Zero);
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using (new XLock(window.Display))
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{
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window.Screen = Functions.XDefaultScreen(window.Display);
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window.RootWindow = Functions.XRootWindow(window.Display, window.Screen);
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window.Handle = window.RootWindow;
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}
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if (!IsSupported(window.Display))
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throw new NotSupportedException("XInput2 not supported.");
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using (new XLock(window.Display))
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using (XIEventMask mask = new XIEventMask(1,
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XIEventMasks.RawButtonPressMask |
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XIEventMasks.RawButtonReleaseMask |
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XIEventMasks.RawMotionMask |
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XIEventMasks.MotionMask |
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XIEventMasks.DeviceChangedMask |
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(XIEventMasks)(1 << (int)ExitEvent)))
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{
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XI.SelectEvents(window.Display, window.Handle, mask);
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}
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UpdateDevices();
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ProcessingThread = new Thread(ProcessEvents);
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ProcessingThread.IsBackground = true;
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ProcessingThread.Start();
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}
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// Checks whether XInput2 is supported on the specified display.
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// If a display is not specified, the default display is used.
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internal static bool IsSupported(IntPtr display)
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{
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try
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{
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if (display == IntPtr.Zero)
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{
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display = API.DefaultDisplay;
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}
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using (new XLock(display))
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{
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int major, ev, error;
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if (Functions.XQueryExtension(display, "XInputExtension", out major, out ev, out error) != 0)
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{
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XIOpCode = major;
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int minor = 2;
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while (minor >= 0)
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{
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if (XI.QueryVersion(display, ref major, ref minor) == ErrorCodes.Success)
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{
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XIVersion = major * 100 + minor * 10;
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return true;
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}
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minor--;
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}
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}
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}
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}
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catch (DllNotFoundException e)
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{
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Debug.Print(e.ToString());
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Debug.Print("XInput2 extension not supported. Mouse support will suffer.");
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}
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return false;
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}
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void UpdateDevices()
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{
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int count;
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unsafe
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{
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XIDeviceInfo* list = (XIDeviceInfo*)XI.QueryDevice(window.Display, 1, out count);
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Debug.Print("Refreshing mouse device list");
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Debug.Print("{0} mouse devices detected", count);
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for (int i = 0; i < count; i++)
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{
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if (devices.Count <= i)
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{
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devices.Add(new XIMouse());
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}
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XIMouse d = devices[i];
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d.DeviceInfo = *(list + i);
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d.State.SetIsConnected(d.DeviceInfo.enabled);
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Debug.Print("Device {0} is {1} and has:",
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i, d.DeviceInfo.enabled ? "enabled" : "disabled");
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// Decode the XIDeviceInfo to axes, buttons and scroll types
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for (int j = 0; j < d.DeviceInfo.num_classes; j++)
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{
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XIAnyClassInfo* class_info = *((XIAnyClassInfo**)d.DeviceInfo.classes + j);
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switch (class_info->type)
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{
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case XIClassType.Button:
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{
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XIButtonClassInfo* button = (XIButtonClassInfo*)class_info;
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Debug.Print("\t{0} buttons", button->num_buttons);
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}
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break;
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case XIClassType.Scroll:
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{
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XIScrollClassInfo* scroll = (XIScrollClassInfo*)class_info;
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switch (scroll->scroll_type)
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{
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case XIScrollType.Vertical:
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Debug.WriteLine("\tSmooth vertical scrolling");
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d.ScrollY = *scroll;
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break;
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case XIScrollType.Horizontal:
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Debug.WriteLine("\tSmooth horizontal scrolling");
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d.ScrollX = *scroll;
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break;
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default:
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Debug.Print("\tUnknown scrolling type {0}", scroll->scroll_type);
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break;
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}
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}
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break;
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case XIClassType.Valuator:
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{
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XIValuatorClassInfo* valuator = (XIValuatorClassInfo*)class_info;
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if (valuator->label == RelX)
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{
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Debug.WriteLine("\tRelative X movement");
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d.MotionX = *valuator;
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}
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else if (valuator->label == RelY)
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{
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Debug.WriteLine("\tRelative Y movement");
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d.MotionY = *valuator;
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}
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}
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break;
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}
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}
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// Map the hardware device id to the current XIMouse id
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if (!rawids.ContainsKey(d.DeviceInfo.deviceid))
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{
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rawids.Add(d.DeviceInfo.deviceid, 0);
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}
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rawids[d.DeviceInfo.deviceid] = i;
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}
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XI.FreeDeviceInfo((IntPtr)list);
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}
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}
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#region IMouseDriver2 Members
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public MouseState GetState()
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{
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MouseState master = new MouseState();
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foreach (var d in devices)
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{
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master.MergeBits(d.State);
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}
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return master;
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}
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public MouseState GetState(int index)
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{
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if (devices.Count > index)
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return devices[index].State;
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else
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return new MouseState();
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}
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public MouseState GetCursorState()
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{
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MouseState master = GetState();
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master.X = (int)Interlocked.Read(ref cursor_x);
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master.Y = (int)Interlocked.Read(ref cursor_y);
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return master;
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}
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public void SetPosition(double x, double y)
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{
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using (new XLock(API.DefaultDisplay))
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{
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Functions.XWarpPointer(API.DefaultDisplay,
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IntPtr.Zero, window.RootWindow, 0, 0, 0, 0, (int)x, (int)y);
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Interlocked.Exchange(ref cursor_x, (long)x);
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Interlocked.Exchange(ref cursor_y, (long)y);
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// Mark the expected warp-event so it can be ignored.
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if (mouse_warp_event == null)
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mouse_warp_event_count = 0;
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mouse_warp_event_count++;
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mouse_warp_event = new MouseWarp((int)x, (int)y);
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}
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}
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#endregion
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void ProcessEvents()
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{
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while (!disposed)
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{
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XEvent e = new XEvent();
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XGenericEventCookie cookie;
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using (new XLock(window.Display))
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{
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Functions.XIfEvent(window.Display, ref e, Predicate, new IntPtr(XIOpCode));
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if (e.type == ExitEvent)
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{
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return;
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}
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IntPtr dummy;
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int x, y, dummy2;
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Functions.XQueryPointer(window.Display, window.RootWindow,
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out dummy, out dummy, out x, out y,
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out dummy2, out dummy2, out dummy2);
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Interlocked.Exchange(ref cursor_x, (long)x);
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Interlocked.Exchange(ref cursor_y, (long)y);
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cookie = e.GenericEventCookie;
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if (Functions.XGetEventData(window.Display, ref cookie) != 0)
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{
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switch ((XIEventType)cookie.evtype)
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{
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case XIEventType.Motion:
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// Nothing to do
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break;
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case XIEventType.RawMotion:
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case XIEventType.RawButtonPress:
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case XIEventType.RawButtonRelease:
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// Delivered to all XIMouse instances
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ProcessRawEvent(ref cookie);
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break;
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case XIEventType.DeviceChanged:
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UpdateDevices();
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break;
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}
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}
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Functions.XFreeEventData(window.Display, ref cookie);
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}
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}
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}
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void ProcessRawEvent(ref XGenericEventCookie cookie)
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{
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unsafe
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{
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XIRawEvent raw = *(XIRawEvent*)cookie.data;
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if (!rawids.ContainsKey(raw.deviceid))
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{
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Debug.Print("Unknown mouse device {0} encountered, ignoring.", raw.deviceid);
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return;
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}
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var d = devices[rawids[raw.deviceid]];
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switch (raw.evtype)
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{
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case XIEventType.RawMotion:
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ProcessRawMotion(d, ref raw);
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break;
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case XIEventType.RawButtonPress:
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switch (raw.detail)
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{
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case 1: d.State.EnableBit((int)MouseButton.Left); break;
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case 2: d.State.EnableBit((int)MouseButton.Middle); break;
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case 3: d.State.EnableBit((int)MouseButton.Right); break;
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case 8: d.State.EnableBit((int)MouseButton.Button1); break;
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case 9: d.State.EnableBit((int)MouseButton.Button2); break;
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case 10: d.State.EnableBit((int)MouseButton.Button3); break;
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case 11: d.State.EnableBit((int)MouseButton.Button4); break;
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case 12: d.State.EnableBit((int)MouseButton.Button5); break;
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case 13: d.State.EnableBit((int)MouseButton.Button6); break;
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case 14: d.State.EnableBit((int)MouseButton.Button7); break;
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}
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break;
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case XIEventType.RawButtonRelease:
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switch (raw.detail)
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{
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case 1: d.State.DisableBit((int)MouseButton.Left); break;
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case 2: d.State.DisableBit((int)MouseButton.Middle); break;
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case 3: d.State.DisableBit((int)MouseButton.Right); break;
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case 8: d.State.DisableBit((int)MouseButton.Button1); break;
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case 9: d.State.DisableBit((int)MouseButton.Button2); break;
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case 10: d.State.DisableBit((int)MouseButton.Button3); break;
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case 11: d.State.DisableBit((int)MouseButton.Button4); break;
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case 12: d.State.DisableBit((int)MouseButton.Button5); break;
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case 13: d.State.DisableBit((int)MouseButton.Button6); break;
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case 14: d.State.DisableBit((int)MouseButton.Button7); break;
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}
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break;
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}
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}
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}
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unsafe static void ProcessRawMotion(XIMouse d, ref XIRawEvent raw)
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{
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// Note: we use the raw values here, without pointer
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// ballistics and any other modification.
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double x = ReadRawValue(ref raw, d.MotionX.number);
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double y = ReadRawValue(ref raw, d.MotionY.number);
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double h = ReadRawValue(ref raw, d.ScrollX.number) / d.ScrollX.increment;
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double v = ReadRawValue(ref raw, d.ScrollY.number) / d.ScrollY.increment;
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d.State.X += (int)Math.Round(x);
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d.State.Y += (int)Math.Round(y);
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d.State.SetScrollRelative((float)h, (float)v);
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}
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unsafe static double ReadRawValue(ref XIRawEvent raw, int bit)
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{
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double value = 0;
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if (IsBitSet(raw.valuators.mask, bit))
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{
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// Find the offset where this value is stored.
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// The offset is equal to the number of bits
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// set in raw.valuators.mask between [0, bit)
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int offset = 0;
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for (int i = 0; i < bit; i++)
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{
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if (IsBitSet(raw.valuators.mask, i))
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{
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offset++;
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}
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}
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value = *((double*)raw.raw_values + offset);
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}
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return value;
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}
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static bool IsEventValid(IntPtr display, ref XEvent e, IntPtr arg)
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{
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bool valid = false;
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if ((long)e.GenericEventCookie.extension == arg.ToInt64())
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{
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valid |= e.GenericEventCookie.evtype == (int)XIEventType.RawMotion;
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valid |= e.GenericEventCookie.evtype == (int)XIEventType.RawButtonPress;
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valid |= e.GenericEventCookie.evtype == (int)XIEventType.RawButtonRelease;
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valid |= e.GenericEventCookie.evtype == (int)XIEventType.DeviceChanged;
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}
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valid |= e.AnyEvent.type == ExitEvent;
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return valid;
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}
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static bool IsBitSet(IntPtr mask, int bit)
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{
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unsafe
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{
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return bit >= 0 && (*((byte*)mask + (bit >> 3)) & (1 << (bit & 7))) != 0;
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}
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}
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#region IDisposable Members
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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void Dispose(bool disposing)
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{
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if (!disposed)
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{
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if (disposing)
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{
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using (new XLock(API.DefaultDisplay))
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{
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XEvent e = new XEvent();
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e.type = ExitEvent;
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Functions.XSendEvent(API.DefaultDisplay, window.Handle, false, IntPtr.Zero, ref e);
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Functions.XFlush(API.DefaultDisplay);
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}
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}
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disposed = true;
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}
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}
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|
|
|
~XI2Mouse()
|
|
{
|
|
Dispose(false);
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|
|
|