Merge pull request #151 from thefiddler/kms

[KMS] Implement Linux/KMS platform

Source/Examples/OpenTK/Test/TestResolutionChanges.cs

@@ -23,16 +23,35 @@ namespace Examples.Tests
                 DisplayDevice dev = DisplayDevice.GetDisplay(DisplayIndex.First + i);
                 if (dev != null)
                 {
-                    Trace.WriteLine(dev.ToString());
+                    Print(dev.ToString());
-                    MessageBox.Show(dev.ToString());
+
                     dev.ChangeResolution(dev.SelectResolution(640, 480, 32, 60.0f));
                     Thread.Sleep(1000);
-                    MessageBox.Show(dev.ToString());
+                    Print(dev.ToString());
+
                     dev.RestoreResolution();
                     Thread.Sleep(1000);
-                    MessageBox.Show(dev.ToString());
+                    Print(dev.ToString());
                 }
             }
         }
+
+        static void Print(string msg)
+        {
+            Trace.WriteLine(msg);
+
+            // Also display a MessageBox when running on a platform
+            // with WinForms support.
+            try
+            {
+                if (Configuration.RunningOnWindows || Configuration.RunningOnX11 || Configuration.RunningOnMacOS)
+                {
+                    MessageBox.Show(msg);
+                }
+            }
+            catch
+            {
+            }
+        }
     }
 }

Source/OpenTK/Configuration.cs

@@ -95,7 +95,7 @@ namespace OpenTK
 
         #region public static bool RunningOnLinux
 
-        /// <summary>Gets a System.Boolean indicating whether OpenTK is running on an X11 platform.</summary>
+        /// <summary>Gets a System.Boolean indicating whether OpenTK is running on the Linux kernel.</summary>
         public static bool RunningOnLinux { get { return runningOnLinux; } }
 
         #endregion

Source/OpenTK/DisplayDevice.cs

@@ -351,6 +351,26 @@ namespace OpenTK
 
         #endregion
 
+        #region FromPoint
+
+        internal static DisplayDevice FromPoint(int x, int y)
+        {
+            for (DisplayIndex i = DisplayIndex.First; i < DisplayIndex.Sixth; i++)
+            {
+                DisplayDevice display = DisplayDevice.GetDisplay(i);
+                if (display != null)
+                {
+                    if (display.Bounds.Contains(x, y))
+                    {
+                        return display;
+                    }
+                }
+            }
+            return null;
+        }
+
+        #endregion
+
         #endregion
 
         #region --- Private Methods ---

Source/OpenTK/Graphics/GraphicsBindingsBase.cs

@@ -26,6 +26,7 @@
 #endregion
 
 using System;
+using System.Diagnostics;
 using System.Runtime.InteropServices;
 
 namespace OpenTK.Graphics
@@ -84,6 +85,8 @@ namespace OpenTK.Graphics
         // validation necessary.)
         internal override void LoadEntryPoints()
         {
+            Debug.Print("Loading entry points for {0}", GetType().FullName);
+
             IGraphicsContext context = GraphicsContext.CurrentContext;
             if (context == null)
                 throw new GraphicsContextMissingException();

Source/OpenTK/Input/MouseState.cs

@@ -38,7 +38,8 @@ namespace OpenTK.Input
     {
         #region Fields
 
-        int x, y;
+        internal const int MaxButtons = 16; // we are storing in an ushort
+        Vector2 position;
         MouseScroll scroll;
         ushort buttons;
         bool is_connected;
@@ -101,7 +102,7 @@ namespace OpenTK.Input
         }
 
         /// <summary>
-        /// Gets a <see cref="OpenTK.Input.MouseScrollWheel"/> instance,
+        /// Gets a <see cref="OpenTK.Input.MouseScroll"/> instance,
         /// representing the current state of the mouse scroll wheel.
         /// </summary>
         public MouseScroll Scroll
@@ -114,8 +115,8 @@ namespace OpenTK.Input
         /// </summary>
         public int X
         {
-            get { return x; }
+            get { return (int)Math.Round(position.X); }
-            internal set { x = value; }
+            internal set { position.X = value; }
         }
 
         /// <summary>
@@ -123,8 +124,8 @@ namespace OpenTK.Input
         /// </summary>
         public int Y
         {
-            get { return y; }
+            get { return (int)Math.Round(position.Y); }
-            internal set { y = value; }
+            internal set { position.Y = value; }
         }
 
         /// <summary>
@@ -272,6 +273,12 @@ namespace OpenTK.Input
 
         #region Internal Members
 
+        internal Vector2 Position
+        {
+            get { return position; }
+            set { position = value; }
+        }
+
         internal bool ReadBit(int offset)
         {
             ValidateOffset(offset);

Source/OpenTK/OpenTK.csproj

@@ -343,9 +343,6 @@
     <Compile Include="Platform\X11\X11WindowInfo.cs">
       <SubType>Code</SubType>
     </Compile>
-    <Compile Include="Platform\X11\X11Joystick.cs">
-      <SubType>Code</SubType>
-    </Compile>
     <Compile Include="Platform\X11\Functions.cs">
       <SubType>Code</SubType>
     </Compile>
@@ -806,6 +803,27 @@
     <Compile Include="Platform\X11\XI2Input.cs" />
     <Compile Include="Platform\X11\XI2MouseKeyboard.cs" />
     <Compile Include="Platform\MacOS\Cocoa\NSFloat.cs" />
+    <Compile Include="Platform\Linux\Bindings\Drm.cs" />
+    <Compile Include="Platform\Linux\LinuxFactory.cs" />
+    <Compile Include="Platform\Linux\LinuxNativeWindow.cs" />
+    <Compile Include="Platform\Linux\Bindings\Gbm.cs" />
+    <Compile Include="Platform\Linux\LinuxDisplayDriver.cs" />
+    <Compile Include="Platform\Linux\LinuxJoystick.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Platform\Linux\Bindings\Libc.cs" />
+    <Compile Include="Platform\Linux\LinuxWindowInfo.cs" />
+    <Compile Include="Platform\Linux\LinuxGraphicsContext.cs" />
+    <Compile Include="Platform\Linux\Bindings\Poll.cs" />
+    <Compile Include="Platform\Linux\LinuxKeyboardTTY.cs" />
+    <Compile Include="Platform\Linux\Bindings\Udev.cs" />
+    <Compile Include="Platform\Linux\Bindings\LibInput.cs" />
+    <Compile Include="Platform\Linux\LinuxInput.cs" />
+    <Compile Include="Platform\Linux\Bindings\Terminal.cs" />
+    <Compile Include="Platform\DeviceCollection.cs" />
+    <Compile Include="Platform\Linux\Bindings\Evdev.cs" />
+    <Compile Include="Platform\Linux\DefaultCursor.cs" />
+    <Compile Include="Platform\Linux\Bindings\Kms.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
@@ -836,4 +854,8 @@
     </MonoDevelop>
   </ProjectExtensions>
   <ItemGroup />
+  <ItemGroup>
+    <Folder Include="Platform\Linux\" />
+    <Folder Include="Platform\Linux\Bindings\" />
+  </ItemGroup>
 </Project>

Source/OpenTK/Platform/DeviceCollection.cs

@@ -0,0 +1,151 @@
+#region License
+//
+// DeviceCollection.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 
+//
+// 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;
+
+namespace OpenTK.Platform
+{
+    // Holds a collection of hardware devices with an associated id.
+    // Note: 'id' refers to a unique hardware-specific device identifier.
+    // Note: 'index' refers to the offset of the device in the Devices array.
+    //        Indices are allocated sequentially as devices are added to the system.
+    //        If a device is removed, its index will be reused for the next device
+    //        that is added.
+    class DeviceCollection<T> : IEnumerable<T>
+    {
+        readonly Dictionary<int, int> Map = new Dictionary<int, int>();
+        readonly List<T> Devices = new List<T>();
+
+        #region IEnumerable<T> Members
+
+        public IEnumerator<T> GetEnumerator()
+        {
+            return Devices.GetEnumerator();
+        }
+
+        #endregion
+
+        #region IEnumerable implementation
+
+        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
+        }
+
+        #endregion
+
+        #region Public Members
+
+        public void Add(int id, T device)
+        {
+            if (!Map.ContainsKey(id))
+            {
+                int index = GetIndex();
+                Map.Add(id, index);
+            }
+
+            Devices[Map[id]] = device;
+        }
+
+        public void Remove(int id)
+        {
+            if (!TryRemove(id))
+            {
+                Debug.Print("Invalid DeviceCollection<{0}> id: {1}", typeof(T).FullName, id);
+            }
+        }
+
+        public bool TryRemove(int id)
+        {
+            if (!Map.ContainsKey(id))
+            {
+                return false;
+            }
+
+            Devices[Map[id]] = default(T);
+            Map.Remove(id);
+            return true;
+        }
+
+        public T FromIndex(int index)
+        {
+            if (index >= 0 && index < Devices.Count)
+            {
+                return Devices[index];
+            }
+            else
+            {
+                return default(T);
+            }
+        }
+
+        public T FromHardwareId(int id)
+        {
+            if (Map.ContainsKey(id))
+            {
+                return FromIndex(Map[id]);
+            }
+            else
+            {
+                return default(T);
+            }
+        }
+
+        public int Count
+        {
+            get { return Map.Count; }
+        }
+
+        #endregion
+
+        #region Private Members
+
+        // Return the index of the first empty slot in Devices.
+        // If no empty slot exists, append a new one and return
+        // that index.
+        int GetIndex()
+        {
+            for (int i = 0; i < Devices.Count; i++)
+            {
+                if (Devices[i] == null)
+                {
+                    return i;
+                }
+            }
+
+            Devices.Add(default(T));
+            return Devices.Count - 1;
+        }
+
+        #endregion
+    }
+}
+

Source/OpenTK/Platform/Egl/Egl.cs

@@ -41,6 +41,13 @@ namespace OpenTK.Platform.Egl
     using EGLSurface = IntPtr;
     using EGLClientBuffer = IntPtr;
 
+    enum RenderApi
+    {
+        ES = Egl.OPENGL_ES_API,
+        GL = Egl.OPENGL_API,
+        VG = Egl.OPENVG_API
+    }
+
     [Flags]
     enum RenderableFlags
     {
@@ -50,6 +57,24 @@ namespace OpenTK.Platform.Egl
         VG = Egl.OPENVG_BIT,
     }
 
+    enum ErrorCode
+    {
+        SUCCESS = 12288,
+        NOT_INITIALIZED = 12289,
+        BAD_ACCESS = 12290,
+        BAD_ALLOC = 12291,
+        BAD_ATTRIBUTE = 12292,
+        BAD_CONFIG = 12293,
+        BAD_CONTEXT = 12294,
+        BAD_CURRENT_SURFACE = 12295,
+        BAD_DISPLAY = 12296,
+        BAD_MATCH = 12297,
+        BAD_NATIVE_PIXMAP = 12298,
+        BAD_NATIVE_WINDOW = 12299,
+        BAD_PARAMETER = 12300,
+        BAD_SURFACE = 12301,
+    }
+
     static partial class Egl
     {
         public const int VERSION_1_0 = 1;
@@ -60,20 +85,6 @@ namespace OpenTK.Platform.Egl
         public const int FALSE = 0;
         public const int TRUE = 1;
         public const int DONT_CARE = -1;
-        public const int SUCCESS = 12288;
-        public const int NOT_INITIALIZED = 12289;
-        public const int BAD_ACCESS = 12290;
-        public const int BAD_ALLOC = 12291;
-        public const int BAD_ATTRIBUTE = 12292;
-        public const int BAD_CONFIG = 12293;
-        public const int BAD_CONTEXT = 12294;
-        public const int BAD_CURRENT_SURFACE = 12295;
-        public const int BAD_DISPLAY = 12296;
-        public const int BAD_MATCH = 12297;
-        public const int BAD_NATIVE_PIXMAP = 12298;
-        public const int BAD_NATIVE_WINDOW = 12299;
-        public const int BAD_PARAMETER = 12300;
-        public const int BAD_SURFACE = 12301;
         public const int CONTEXT_LOST = 12302;
         public const int BUFFER_SIZE = 12320;
         public const int ALPHA_SIZE = 12321;
@@ -178,7 +189,7 @@ namespace OpenTK.Platform.Egl
         public const int ALPHA_FORMAT_PRE = VG_ALPHA_FORMAT_PRE;
 
         [DllImportAttribute("libEGL.dll", EntryPoint = "eglGetError")]
-        public static extern int GetError();
+        public static extern ErrorCode GetError();
 
         [DllImportAttribute("libEGL.dll", EntryPoint = "eglGetDisplay")]
         public static extern EGLDisplay GetDisplay(EGLNativeDisplayType display_id);
@@ -225,7 +236,7 @@ namespace OpenTK.Platform.Egl
 
         [DllImportAttribute("libEGL.dll", EntryPoint = "eglBindAPI")]
         [return: MarshalAsAttribute(UnmanagedType.I1)]
-        public static extern bool BindAPI(int api);
+        public static extern bool BindAPI(RenderApi api);
 
         [DllImportAttribute("libEGL.dll", EntryPoint = "eglQueryAPI")]
         public static extern int QueryAPI();

Source/OpenTK/Platform/Egl/EglContext.cs

@@ -35,9 +35,9 @@ namespace OpenTK.Platform.Egl
     {
         #region Fields
 
-        readonly RenderableFlags Renderable;
+        protected readonly RenderableFlags Renderable;
+        protected EglWindowInfo WindowInfo;
 
-        EglWindowInfo WindowInfo;
         IntPtr HandleAsEGLContext { get { return Handle.Handle; } set { Handle = new ContextHandle(value); } }
         int swap_interval = 1; // Default interval is defined as 1 in EGL.
 
@@ -60,7 +60,20 @@ namespace OpenTK.Platform.Egl
             // Select an EGLConfig that matches the desired mode. We cannot use the 'mode'
             // parameter directly, since it may have originated on a different system (e.g. GLX)
             // and it may not support the desired renderer.
+
+            Renderable = RenderableFlags.GL;
+            if ((flags & GraphicsContextFlags.Embedded) != 0)
+            {
                 Renderable = major > 1 ? RenderableFlags.ES2 : RenderableFlags.ES;
+            }
+
+            RenderApi api = (Renderable & RenderableFlags.GL) != 0 ? RenderApi.GL : RenderApi.ES;
+            Debug.Print("[EGL] Binding {0} rendering API.", api);
+            if (!Egl.BindAPI(api))
+            {
+                Debug.Print("[EGL] Failed to bind rendering API. Error: {0}", Egl.GetError());
+            }
+
             Mode = new EglGraphicsMode().SelectGraphicsMode(window,
                 mode.ColorFormat, mode.Depth, mode.Stencil, mode.Samples,
                 mode.AccumulatorFormat, mode.Buffers, mode.Stereo,
@@ -133,7 +146,8 @@ namespace OpenTK.Platform.Egl
                 if (Egl.SwapInterval(WindowInfo.Display, value))
                     swap_interval = value;
                 else
-                    Debug.Print("[Warning] Egl.SwapInterval({0}, {1}) failed.", WindowInfo.Display, value);
+                    Debug.Print("[Warning] Egl.SwapInterval({0}, {1}) failed. Error: {2}",
+                        WindowInfo.Display, value, Egl.GetError());
             }
         }
 

Source/OpenTK/Platform/Egl/EglGraphicsMode.cs

@@ -34,6 +34,15 @@ namespace OpenTK.Platform.Egl
 {
     class EglGraphicsMode
     {
+        public GraphicsMode SelectGraphicsMode(EglWindowInfo window,
+            GraphicsMode mode, RenderableFlags flags)
+        {
+            return SelectGraphicsMode(window,
+                mode.ColorFormat, mode.Depth, mode.Stencil,
+                mode.Samples, mode.AccumulatorFormat, mode.Buffers, mode.Stereo,
+                flags);
+        }
+
         public GraphicsMode SelectGraphicsMode(EglWindowInfo window,
             ColorFormat color, int depth, int stencil,
             int samples, ColorFormat accum, int buffers, bool stereo,

Source/OpenTK/Platform/Egl/EglUnixContext.cs

@@ -28,14 +28,16 @@
 #endregion
 
 using System;
+using System.Diagnostics;
 using OpenTK.Graphics;
 
 namespace OpenTK.Platform.Egl
 {
     class EglUnixContext : EglContext
     {
-        readonly IntPtr ES1 = OpenTK.Platform.X11.DL.Open("libGLESv1_CM", X11.DLOpenFlags.Lazy);
+        IntPtr ES1 = OpenTK.Platform.X11.DL.Open("libGLESv1_CM", X11.DLOpenFlags.Lazy);
-        readonly IntPtr ES2 = OpenTK.Platform.X11.DL.Open("libGLESv2", X11.DLOpenFlags.Lazy);
+        IntPtr ES2 = OpenTK.Platform.X11.DL.Open("libGLESv2", X11.DLOpenFlags.Lazy);
+        IntPtr GL = OpenTK.Platform.X11.DL.Open("libGL", X11.DLOpenFlags.Lazy);
 
         public EglUnixContext(GraphicsMode mode, EglWindowInfo window, IGraphicsContext sharedContext,
             int major, int minor, GraphicsContextFlags flags)
@@ -59,6 +61,10 @@ namespace OpenTK.Platform.Egl
             {
                 return X11.DL.Symbol(ES2, function);
             }
+            else if ((renderable & RenderableFlags.GL) != 0 && GL != IntPtr.Zero)
+            {
+                return X11.DL.Symbol(GL, function);
+            }
             return IntPtr.Zero;
         }
 
@@ -72,8 +78,32 @@ namespace OpenTK.Platform.Egl
             {
                 X11.DL.Close(ES2);
             }
+            if (GL != IntPtr.Zero)
+            {
+                X11.DL.Close(GL);
+            }
+
+            GL = ES1 = ES2 = IntPtr.Zero;
 
             base.Dispose(manual);
         }
+
+        public override void LoadAll()
+        {
+            // Modern unices can use EGL to create
+            // both GL and ES contexts, so we need
+            // to load all entry points. This is
+            // especially true on KMS, Wayland and Mir.
+
+            Stopwatch time = Stopwatch.StartNew();
+
+            new OpenTK.Graphics.OpenGL.GL().LoadEntryPoints();
+            new OpenTK.Graphics.OpenGL4.GL().LoadEntryPoints();
+            new OpenTK.Graphics.ES11.GL().LoadEntryPoints();
+            new OpenTK.Graphics.ES20.GL().LoadEntryPoints();
+            new OpenTK.Graphics.ES30.GL().LoadEntryPoints();
+
+            Debug.Print("Bindings loaded in {0} ms.", time.Elapsed.TotalMilliseconds);
+        }
     }
 }

Source/OpenTK/Platform/Egl/EglWindowInfo.cs

@@ -75,7 +75,7 @@ namespace OpenTK.Platform.Egl
 
         #region Public Members
 
-        public IntPtr Handle { get { return handle; } private set { handle = value; } }
+        public IntPtr Handle { get { return handle; } set { handle = value; } }
 
         public IntPtr Display { get { return display; } private set { display = value; } }
 
@@ -87,7 +87,7 @@ namespace OpenTK.Platform.Egl
 			if (Surface==IntPtr.Zero)
 			{
                 throw new GraphicsContextException(String.Format(
-					"[Error] Failed to create EGL window surface, error {0}.", Egl.GetError()));
+                    "[EGL] Failed to create window surface, error {0}.", Egl.GetError()));
 			}
         }
 

Source/OpenTK/Platform/Factory.cs

@@ -54,6 +54,7 @@ namespace OpenTK.Platform
             // Create regular platform backend
             if (Configuration.RunningOnSdl2) Default = new SDL2.Sdl2Factory();
             else if (Configuration.RunningOnX11) Default = new X11.X11Factory();
+            else if (Configuration.RunningOnLinux) Default = new Linux.LinuxFactory();
             else if (Configuration.RunningOnWindows) Default = new Windows.WinFactory();
             else if (Configuration.RunningOnMacOS) Default = new MacOS.MacOSFactory();
             else Default = new UnsupportedPlatform();
@@ -70,7 +71,8 @@ namespace OpenTK.Platform
             }
             else if (Egl.Egl.IsSupported)
             {
-                if (Configuration.RunningOnX11) Embedded = new Egl.EglX11PlatformFactory();
+                if (Configuration.RunningOnLinux) Embedded = Default;
+                else if (Configuration.RunningOnX11) Embedded = new Egl.EglX11PlatformFactory();
                 else if (Configuration.RunningOnWindows) Embedded = new Egl.EglWinPlatformFactory();
                 else if (Configuration.RunningOnMacOS) Embedded = new Egl.EglMacPlatformFactory();
                 else Embedded = new UnsupportedPlatform();

Source/OpenTK/Platform/Linux/Bindings/Drm.cs

@@ -0,0 +1,209 @@
+#region License
+//
+// Drm.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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.Runtime.InteropServices;
+
+namespace OpenTK.Platform.Linux
+{
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    delegate void VBlankCallback(int fd,
+        int sequence,
+        int tv_sec,
+        int tv_usec,
+        IntPtr user_data);
+
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    delegate void PageFlipCallback(int fd,
+        int sequence,
+        int tv_sec,
+        int tv_usec,
+        IntPtr user_data);
+
+    class Drm
+    {
+        const string lib = "libdrm";
+
+        [DllImport(lib, EntryPoint = "drmHandleEvent", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int HandleEvent(int fd, ref EventContext evctx);
+
+        [DllImport(lib, EntryPoint = "drmModeAddFB", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int ModeAddFB(int fd, int width, int height, byte depth,
+            byte bpp, int pitch, int bo_handle,
+            out int buf_id);
+
+        [DllImport(lib, EntryPoint = "drmModeRmFB", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int ModeRmFB(int fd, int bufferId);
+
+        [DllImport(lib, EntryPoint = "drmModeFreeCrtc", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void ModeFreeCrtc(IntPtr ptr);
+
+        [DllImport(lib, EntryPoint = "drmModeGetCrtc", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr ModeGetCrtc(int fd, int crtcId);
+
+        [DllImport(lib, EntryPoint = "drmModeFreeConnector", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void ModeFreeConnector(IntPtr ptr);
+
+        [DllImport(lib, EntryPoint = "drmModeFreeEncoder", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void ModeFreeEncoder(IntPtr ptr);
+
+        [DllImport(lib, EntryPoint = "drmModeGetConnector", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr ModeGetConnector(int fd, int connector_id);
+
+        [DllImport(lib, EntryPoint = "drmModeGetEncoder", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr ModeGetEncoder(int fd, int encoder_id);
+
+        [DllImport(lib, EntryPoint = "drmModeGetResources", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr ModeGetResources(int fd);
+
+        [DllImport(lib, EntryPoint = "drmModePageFlip", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int ModePageFlip(int fd, int crtc_id, int fb_id,
+            PageFlipFlags flags, IntPtr user_data);
+
+        [DllImport(lib, EntryPoint = "drmModeSetCrtc", CallingConvention = CallingConvention.Cdecl)]
+        unsafe public static extern int ModeSetCrtc(int fd, int crtcId, int bufferId,
+            int x, int y, int* connectors, int count, ModeInfo* mode);
+
+        [DllImport(lib, EntryPoint = "drmModeSetCursor2", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int SetCursor(int fd, int crtcId, int bo_handle, int width, int height, int hot_x, int hot_y);
+
+        [DllImport(lib, EntryPoint = "drmModeMoveCursor", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int MoveCursor(int fd, int crtcId, int x, int y);
+
+    }
+
+    enum ModeConnection
+    {
+        Connected = 1,
+        Disconnected = 2,
+        Unknown = 3
+    }
+
+    enum ModeSubPixel
+    {
+        Unknown = 1,
+        HorizontalRgb = 2,
+        HorizontalBgr = 3,
+        VerticalRgb = 4,
+        VerticalBgr = 5,
+        None = 6
+    }
+
+    [Flags]
+    enum PageFlipFlags
+    {
+        FlipEvent = 0x01,
+        FlipAsync = 0x02,
+        FlipFlags = FlipEvent | FlipAsync
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    struct EventContext
+    {
+        public int version;
+        public IntPtr vblank_handler;
+        public IntPtr page_flip_handler;
+
+        public static readonly int Version = 2;
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    unsafe struct ModeConnector
+    {
+        public int connector_id;
+        public int encoder_id;
+        public int connector_type;
+        public int connector_type_id;
+        public ModeConnection connection;
+        public int mmWidth, mmHeight;
+        public ModeSubPixel subpixel;
+
+        public int count_modes;
+        public ModeInfo* modes;
+
+        public int count_props;
+        public int *props;
+        public long *prop_values;
+
+        public int count_encoders;
+        public int *encoders;
+    }
+
+    struct ModeCrtc
+    {
+        public int crtc_id;
+        public int buffer_id;
+
+        public int x, y;
+        public int width, height;
+        public int mode_valid;
+        public ModeInfo mode;
+
+        public int gamma_size;
+    }
+
+    struct ModeEncoder
+    {
+        public int encoder_id;
+        public int encoder_type;
+        public int crtc_id;
+        public int possible_crtcs;
+        public int possible_clones;
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    unsafe struct ModeInfo
+    {
+        public uint clock;
+        public ushort hdisplay, hsync_start, hsync_end, htotal, hskew;
+        public ushort vdisplay, vsync_start, vsync_end, vtotal, vscan;
+
+        public int vrefresh; // refresh rate * 1000
+
+        public uint flags;
+        public uint type;
+        public fixed sbyte name[32];
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    unsafe struct ModeRes
+    {
+        public int count_fbs;
+        public int* fbs;
+        public int count_crtcs;
+        public int* crtcs;
+        public int count_connectors;
+        public int* connectors;
+        public int count_encoders;
+        public int* encoders;
+        public int min_width, max_width;
+        public int min_height, max_height;
+    }
+}
+

Source/OpenTK/Platform/Linux/Bindings/Evdev.cs

@@ -0,0 +1,452 @@
+#region License
+//
+// Evdev.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 
+//
+// 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.Diagnostics;
+using OpenTK.Input;
+
+namespace OpenTK.Platform.Linux
+{
+    // Bindings for linux/input.h
+    class Evdev
+    {
+        #region KeyMap
+
+        public static readonly Key[] KeyMap = new Key[]
+        {
+            // 0-7
+            Key.Unknown,
+            Key.Escape,
+            Key.Number1,
+            Key.Number2,
+            Key.Number3,
+            Key.Number4,
+            Key.Number5,
+            Key.Number6,
+            // 8-15
+            Key.Number7,
+            Key.Number8,
+            Key.Number9,
+            Key.Number0,
+            Key.Minus,
+            Key.Plus,
+            Key.BackSpace,
+            Key.Tab,
+            // 16-23
+            Key.Q,
+            Key.W,
+            Key.E,
+            Key.R,
+            Key.T,
+            Key.Y,
+            Key.U,
+            Key.I,
+            // 24-31
+            Key.O,
+            Key.P,
+            Key.BracketLeft,
+            Key.BracketRight,
+            Key.Enter,
+            Key.ControlLeft,
+            Key.A,
+            Key.S,
+            // 32-39
+            Key.D,
+            Key.F,
+            Key.G,
+            Key.H,
+            Key.J,
+            Key.K,
+            Key.L,
+            Key.Semicolon,
+            // 40-47
+            Key.Quote,
+            Key.Tilde,
+            Key.ShiftLeft,
+            Key.BackSlash, //Key.Execute,
+            Key.Z,
+            Key.X,
+            Key.C,
+            Key.V, //Key.Help,
+            // 48-55
+            Key.B,
+            Key.N,
+            Key.M,
+            Key.Comma,
+            Key.Period,
+            Key.Slash,
+            Key.ShiftRight,
+            Key.KeypadMultiply,
+            // 56-63
+            Key.AltLeft,
+            Key.Space,
+            Key.CapsLock,
+            Key.F1,
+            Key.F2,
+            Key.F3,
+            Key.F4,
+            Key.F5,
+            // 64-71
+            Key.F6,
+            Key.F7,
+            Key.F8,
+            Key.F9,
+            Key.F10,
+            Key.NumLock,
+            Key.ScrollLock,
+            Key.Keypad7,
+            // 72-79
+            Key.Keypad8,
+            Key.Keypad9,
+            Key.KeypadSubtract,
+            Key.Keypad4,
+            Key.Keypad5,
+            Key.Keypad6,
+            Key.KeypadPlus,
+            Key.Keypad1,
+            // 80-87
+            Key.Keypad2,
+            Key.Keypad3,
+            Key.Keypad0,
+            Key.KeypadPeriod,
+            Key.Unknown,
+            Key.Unknown, // zenkakuhankaku
+            Key.Unknown, // 102ND
+            Key.F11,
+            // 88-95
+            Key.F12,
+            Key.Unknown, // ro
+            Key.Unknown, // katakana
+            Key.Unknown, // hiragana
+            Key.Unknown, // henkan
+            Key.Unknown, // katakanahiragana
+            Key.Unknown, // muhenkan
+            Key.Unknown, // kpjpcomma
+            // 96-103
+            Key.KeypadEnter,
+            Key.ControlRight,
+            Key.KeypadDivide,
+            Key.Unknown, // sysrq
+            Key.AltRight,
+            Key.Unknown, // linefeed
+            Key.Home,
+            Key.Up,
+            // 104-111
+            Key.PageUp,
+            Key.Left,
+            Key.Right,
+            Key.End,
+            Key.Down,
+            Key.PageDown,
+            Key.Insert,
+            Key.Delete,
+            // 112-119
+            Key.Unknown, // macro
+            Key.Unknown, // mute
+            Key.Unknown, // volumedown
+            Key.Unknown, // volumeup
+            Key.Unknown, // power
+            Key.Unknown, // kpequal
+            Key.Unknown, // kpplusminus
+            Key.Pause,
+            // 120-127
+            Key.Unknown, // scale
+            Key.Unknown, // kpcomma
+            Key.Unknown, // hangeul / hanguel
+            Key.Unknown, // hanja
+            Key.Unknown, // yen
+            Key.WinLeft,
+            Key.WinRight,
+            Key.Unknown, // compose
+            // 128-135
+            Key.Unknown, // stop
+            Key.Unknown, // again
+            Key.Unknown, // props
+            Key.Unknown, // undo
+            Key.Unknown, // front
+            Key.Unknown, // copy
+            Key.Unknown, // open
+            Key.Unknown, // paste
+            // 136-143
+            Key.Unknown, // find
+            Key.Unknown, // cut
+            Key.Unknown, // help
+            Key.Unknown, // menu
+            Key.Unknown, // calc
+            Key.Unknown, // setup
+            Key.Unknown, // sleep
+            Key.Unknown, // wakeup
+            // 144-151
+            Key.Unknown, // file
+            Key.Unknown, // send file
+            Key.Unknown, // delete file
+            Key.Unknown, // xfer
+            Key.Unknown, // prog1
+            Key.Unknown, // prog2
+            Key.Unknown, // www
+            Key.Unknown, // msdos
+            // 152-159
+            Key.Unknown, // coffee / screenlock
+            Key.Unknown, // direction
+            Key.Unknown, // cycle windows
+            Key.Unknown, // mail
+            Key.Unknown, // bookmarks
+            Key.Unknown, // computer
+            Key.Back,
+            Key.Unknown, // forward
+            // 160-167
+            Key.Unknown, // close cd
+            Key.Unknown, // eject cd
+            Key.Unknown, // eject/close cd
+            Key.Unknown, // next song
+            Key.Unknown, // play/pause
+            Key.Unknown, // previous song
+            Key.Unknown, // stop cd
+            Key.Unknown, // record
+            // 168-175
+            Key.Unknown, // rewind
+            Key.Unknown, // phone
+            Key.Unknown, // iso
+            Key.Unknown, // config
+            Key.Unknown, // homepage
+            Key.Unknown, // refresh
+            Key.Unknown, // exit
+            Key.Unknown, // move,
+            // 176-183
+            Key.Unknown, // edit,
+            Key.Unknown, // scroll up,
+            Key.Unknown, // scroll down,
+            Key.Unknown, // kp left paren,
+            Key.Unknown, // kp right paren,
+            Key.Unknown, // new,
+            Key.Unknown, // redo,
+            Key.F13,
+            // 184-191
+            Key.F14,
+            Key.F15,
+            Key.F16,
+            Key.F17,
+            Key.F18,
+            Key.F19,
+            Key.F20,
+            Key.F21,
+            // 192-199
+            Key.F22,
+            Key.F23,
+            Key.F24,
+            Key.Unknown,
+            Key.Unknown,
+            Key.Unknown,
+            Key.Unknown,
+            Key.Unknown,
+            // 200-207
+            Key.Unknown, // play cd
+            Key.Unknown, // pause cd
+            Key.Unknown, // prog3
+            Key.Unknown, // prog4
+            Key.Unknown, // dashboard
+            Key.Unknown, // suspend
+            Key.Unknown, // close
+            Key.Unknown, // play
+            // 208-215
+            Key.Unknown, // fast forward
+            Key.Unknown, // bass boost
+            Key.Unknown, // print
+            Key.Unknown, // hp
+            Key.Unknown, // camera
+            Key.Unknown, // sound
+            Key.Unknown, // question
+            Key.Unknown, // email
+            // 216-223
+            Key.Unknown, // chat
+            Key.Unknown, // search
+            Key.Unknown, // connect
+            Key.Unknown, // finance
+            Key.Unknown, // sport
+            Key.Unknown, // shop
+            Key.Unknown, // alt erase
+            Key.Unknown, // cancel
+            // 224-231
+            Key.Unknown, // brightness down
+            Key.Unknown, // brightness up
+            Key.Unknown, // media
+            Key.Unknown, // switch video mode
+            Key.Unknown, // dillum toggle
+            Key.Unknown, // dillum down
+            Key.Unknown, // dillum up
+            Key.Unknown, // send
+            // 232-239
+            Key.Unknown, // reply
+            Key.Unknown, // forward email
+            Key.Unknown, // save
+            Key.Unknown, // documents
+            Key.Unknown, // battery
+            Key.Unknown, // bluetooth
+            Key.Unknown, // wlan
+            Key.Unknown, // uwb
+            // 240-247
+            Key.Unknown,
+            Key.Unknown, // video next
+            Key.Unknown, // video prev
+            Key.Unknown, // brightness cycle
+            Key.Unknown, // brightness zero
+            Key.Unknown, // display off
+            Key.Unknown, // wwan / wimax
+            Key.Unknown, // rfkill
+            // 248-255
+            Key.Unknown, // mic mute
+            Key.Unknown,
+            Key.Unknown,
+            Key.Unknown,
+            Key.Unknown,
+            Key.Unknown,
+            Key.Unknown,
+            Key.Unknown, // reserved
+        };
+
+        #endregion
+
+        public static MouseButton GetMouseButton(EvdevButton button)
+        {
+            switch (button)
+            {
+                case EvdevButton.LEFT:
+                    return MouseButton.Left;
+                case EvdevButton.RIGHT:
+                    return MouseButton.Right;
+                case EvdevButton.MIDDLE:
+                    return MouseButton.Middle;
+                case EvdevButton.BTN0:
+                    return MouseButton.Button1;
+                case EvdevButton.BTN1:
+                    return MouseButton.Button2;
+                case EvdevButton.BTN2:
+                    return MouseButton.Button3;
+                case EvdevButton.BTN3:
+                    return MouseButton.Button4;
+                case EvdevButton.BTN4:
+                    return MouseButton.Button5;
+                case EvdevButton.BTN5:
+                    return MouseButton.Button6;
+                case EvdevButton.BTN6:
+                    return MouseButton.Button7;
+                case EvdevButton.BTN7:
+                    return MouseButton.Button8;
+                case EvdevButton.BTN8:
+                    return MouseButton.Button9;
+                default:
+                    Debug.Print("[Input] Unknown EvdevButton {0}", button);
+                    return MouseButton.Left;
+            }
+        }
+    }
+
+    enum EvdevButton : uint
+    {
+        MISC        = 0x100,
+        BTN0        = 0x100,
+        BTN1        = 0x101,
+        BTN2        = 0x102,
+        BTN3        = 0x103,
+        BTN4        = 0x104,
+        BTN5        = 0x105,
+        BTN6        = 0x106,
+        BTN7        = 0x107,
+        BTN8        = 0x108,
+        BTN9        = 0x109,
+
+        MOUSE       = 0x110,
+        LEFT        = 0x110,
+        RIGHT       = 0x111,
+        MIDDLE      = 0x112,
+        SIDE        = 0x113,
+        EXTRA       = 0x114,
+        FORWARD     = 0x115,
+        BACK        = 0x116,
+        TASK        = 0x117,
+
+        JOYSTICK    = 0x120,
+        TRIGGER     = 0x120,
+        THUMB       = 0x121,
+        THUMB2      = 0x122,
+        TOP         = 0x123,
+        TOP2        = 0x124,
+        PINKIE      = 0x125,
+        BASE        = 0x126,
+        BASE2       = 0x127,
+        BASE3       = 0x128,
+        BASE4       = 0x129,
+        BASE5       = 0x12a,
+        BASE6       = 0x12b,
+        DEAD        = 0x12f,
+
+        GAMEPAD     = 0x130,
+        SOUTH       = 0x130,
+        A           = SOUTH,
+        EAST        = 0x131,
+        B           = EAST,
+        C           = 0x132,
+        NORTH       = 0x133,
+        X           = NORTH,
+        WEST        = 0x134,
+        Y           = WEST,
+        Z           = 0x135,
+        TL          = 0x136,
+        TR          = 0x137,
+        TL2         = 0x138,
+        TR2         = 0x139,
+        SELECT      = 0x13a,
+        START       = 0x13b,
+        MODE        = 0x13c,
+        THUMBL      = 0x13d,
+        THUMBR      = 0x13e,
+
+        DIGI        = 0x140,
+        TOOL_PEN        = 0x140,
+        TOOL_RUBBER     = 0x141,
+        TOOL_BRUSH      = 0x142,
+        TOOL_PENCIL     = 0x143,
+        TOOL_AIRBRUSH   = 0x144,
+        TOOL_FINGER     = 0x145,
+        TOOL_MOUSE      = 0x146,
+        TOOL_LENS       = 0x147,
+        TOOL_QUINTTAP   = 0x148, // Five fingers on trackpad
+        TOUCH           = 0x14a,
+        STYLUS          = 0x14b,
+        STYLUS2     = 0x14c,
+        TOOL_DOUBLETAP  = 0x14d,
+        TOOL_TRIPLETAP  = 0x14e,
+        TOOL_QUADTAP    = 0x14f, // Four fingers on trackpad
+
+        WHEEL       = 0x150,
+        GEAR_DOWN   = 0x150,
+        GEAR_UP     = 0x151,
+    }
+}
+

Source/OpenTK/Platform/Linux/Bindings/Gbm.cs

@@ -0,0 +1,278 @@
+#region License
+//
+// Gbm.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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.Runtime.InteropServices;
+
+namespace OpenTK.Platform.Linux
+{
+    using Device = IntPtr; // struct gbm_device*
+    using Surface = IntPtr;
+    using BufferObjectHandle = IntPtr;
+
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    delegate void DestroyUserDataCallback(BufferObject bo, IntPtr data);
+
+    class Gbm
+    {
+        const string lib = "gbm";
+
+        [DllImport(lib, EntryPoint = "gbm_bo_create", CallingConvention = CallingConvention.Cdecl)]
+        public static extern BufferObject CreateBuffer(Device gbm, int width, int height, SurfaceFormat format, SurfaceFlags flags);
+
+        [DllImport(lib, EntryPoint = "gbm_bo_destroy", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void DestroyBuffer(BufferObject bo);
+
+        [DllImport(lib, EntryPoint = "gbm_bo_write", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int BOWrite(IntPtr bo, IntPtr buf, IntPtr count);
+
+        [DllImport(lib, EntryPoint = "gbm_bo_get_device", CallingConvention = CallingConvention.Cdecl)]
+        public static extern Device BOGetDevice(IntPtr bo);
+
+        [DllImport(lib, EntryPoint = "gbm_bo_get_handle", CallingConvention = CallingConvention.Cdecl)]
+        public static extern BufferObjectHandle BOGetHandle(IntPtr bo);
+
+        [DllImport(lib, EntryPoint = "gbm_bo_get_height", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int BOGetHeight(IntPtr bo);
+
+        [DllImport(lib, EntryPoint = "gbm_bo_get_width", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int BOGetWidth(IntPtr bo);
+
+        [DllImport(lib, EntryPoint = "gbm_bo_get_stride", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int BOGetStride(IntPtr bo);
+
+        [DllImport(lib, EntryPoint = "gbm_bo_set_user_data", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void BOSetUserData(IntPtr bo, IntPtr data, DestroyUserDataCallback callback);
+
+        [DllImport(lib, EntryPoint = "gbm_create_device", CallingConvention = CallingConvention.Cdecl)]
+        public static extern Device CreateDevice(int fd);
+
+        [DllImport(lib, EntryPoint = "gbm_device_destroy", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void DestroyDevice(Device gbm);
+
+        [DllImport(lib, EntryPoint = "gbm_device_get_fd", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int DeviceGetFD(IntPtr gbm);
+
+        [DllImport(lib, EntryPoint = "gbm_surface_create", CallingConvention = CallingConvention.Cdecl)]
+        public static extern Surface CreateSurface(Device gbm, int width, int height, SurfaceFormat format, SurfaceFlags flags);
+
+        [DllImport(lib, EntryPoint = "gbm_surface_destroy", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void DestroySurface(IntPtr surface);
+
+        [DllImport(lib, EntryPoint = "gbm_device_is_format_supported", CallingConvention = CallingConvention.Cdecl)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static extern bool IsFormatSupported(Device gbm, SurfaceFormat format, SurfaceFlags usage);
+
+        [DllImport(lib, EntryPoint = "gbm_surface_lock_front_buffer", CallingConvention = CallingConvention.Cdecl)]
+        public static extern BufferObject LockFrontBuffer(Surface surface);
+
+        [DllImport(lib, EntryPoint = "gbm_surface_release_buffer", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void ReleaseBuffer(Surface surface, BufferObject buffer);
+    }
+
+    enum SurfaceFormat
+    {
+        BigEndian = 1 << 31,
+        C8 = ((int)('C') | ((int)('8') << 8) | ((int)(' ') << 16) | ((int)(' ') << 24)),
+
+        RGB332 = ((int)('R') | ((int)('G') << 8) | ((int)('B') << 16) | ((int)('8') << 24)),
+        BGR233 = ((int)('B') | ((int)('G') << 8) | ((int)('R') << 16) | ((int)('8') << 24)),
+
+        XRGB4444 = ((int)('X') | ((int)('R') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+        XBGR4444 = ((int)('X') | ((int)('B') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+        RGBX4444 = ((int)('R') | ((int)('X') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+        BGRX4444 = ((int)('B') | ((int)('X') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+
+        ARGB4444 = ((int)('A') | ((int)('R') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+        ABGR4444 = ((int)('A') | ((int)('B') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+        RGBA4444 = ((int)('R') | ((int)('A') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+        BGRA4444 = ((int)('B') | ((int)('A') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+
+        XRGB1555 = ((int)('X') | ((int)('R') << 8) | ((int)('1') << 16) | ((int)('5') << 24)),
+        XBGR1555 = ((int)('X') | ((int)('B') << 8) | ((int)('1') << 16) | ((int)('5') << 24)),
+        RGBX5551 = ((int)('R') | ((int)('X') << 8) | ((int)('1') << 16) | ((int)('5') << 24)),
+        BGRX5551 = ((int)('B') | ((int)('X') << 8) | ((int)('1') << 16) | ((int)('5') << 24)),
+
+        ARGB1555 = ((int)('A') | ((int)('R') << 8) | ((int)('1') << 16) | ((int)('5') << 24)),
+        ABGR1555 = ((int)('A') | ((int)('B') << 8) | ((int)('1') << 16) | ((int)('5') << 24)),
+        RGBA5551 = ((int)('R') | ((int)('A') << 8) | ((int)('1') << 16) | ((int)('5') << 24)),
+        BGRA5551 = ((int)('B') | ((int)('A') << 8) | ((int)('1') << 16) | ((int)('5') << 24)),
+
+        RGB565 = ((int)('R') | ((int)('G') << 8) | ((int)('1') << 16) | ((int)('6') << 24)),
+        BGR565 = ((int)('B') | ((int)('G') << 8) | ((int)('1') << 16) | ((int)('6') << 24)),
+
+        RGB888 = ((int)('R') | ((int)('G') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+        BGR888 = ((int)('B') | ((int)('G') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+
+        XRGB8888 = ((int)('X') | ((int)('R') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+        XBGR8888 = ((int)('X') | ((int)('B') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+        RGBX8888 = ((int)('R') | ((int)('X') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+        BGRX8888 = ((int)('B') | ((int)('X') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+
+        ARGB8888 = ((int)('A') | ((int)('R') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+        ABGR8888 = ((int)('A') | ((int)('B') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+        RGBA8888 = ((int)('R') | ((int)('A') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+        BGRA8888 = ((int)('B') | ((int)('A') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+
+        XRGB2101010 = ((int)('X') | ((int)('R') << 8) | ((int)('3') << 16) | ((int)('0') << 24)),
+        XBGR2101010 = ((int)('X') | ((int)('B') << 8) | ((int)('3') << 16) | ((int)('0') << 24)),
+        RGBX1010102 = ((int)('R') | ((int)('X') << 8) | ((int)('3') << 16) | ((int)('0') << 24)),
+        BGRX1010102 = ((int)('B') | ((int)('X') << 8) | ((int)('3') << 16) | ((int)('0') << 24)),
+
+        ARGB2101010 = ((int)('A') | ((int)('R') << 8) | ((int)('3') << 16) | ((int)('0') << 24)),
+        ABGR2101010 = ((int)('A') | ((int)('B') << 8) | ((int)('3') << 16) | ((int)('0') << 24)),
+        RGBA1010102 = ((int)('R') | ((int)('A') << 8) | ((int)('3') << 16) | ((int)('0') << 24)),
+        BGRA1010102 = ((int)('B') | ((int)('A') << 8) | ((int)('3') << 16) | ((int)('0') << 24)),
+
+        YUYV = ((int)('Y') | ((int)('U') << 8) | ((int)('Y') << 16) | ((int)('V') << 24)),
+        YVYU = ((int)('Y') | ((int)('V') << 8) | ((int)('Y') << 16) | ((int)('U') << 24)),
+        UYVY = ((int)('U') | ((int)('Y') << 8) | ((int)('V') << 16) | ((int)('Y') << 24)),
+        VYUY = ((int)('V') | ((int)('Y') << 8) | ((int)('U') << 16) | ((int)('Y') << 24)),
+
+        AYUV = ((int)('A') | ((int)('Y') << 8) | ((int)('U') << 16) | ((int)('V') << 24)),
+
+        NV12 = ((int)('N') | ((int)('V') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+        NV21 = ((int)('N') | ((int)('V') << 8) | ((int)('2') << 16) | ((int)('1') << 24)),
+        NV16 = ((int)('N') | ((int)('V') << 8) | ((int)('1') << 16) | ((int)('6') << 24)),
+        NV61 = ((int)('N') | ((int)('V') << 8) | ((int)('6') << 16) | ((int)('1') << 24)),
+
+        YUV410 = ((int)('Y') | ((int)('U') << 8) | ((int)('V') << 16) | ((int)('9') << 24)),
+        YVU410 = ((int)('Y') | ((int)('V') << 8) | ((int)('U') << 16) | ((int)('9') << 24)),
+        YUV411 = ((int)('Y') | ((int)('U') << 8) | ((int)('1') << 16) | ((int)('1') << 24)),
+        YVU411 = ((int)('Y') | ((int)('V') << 8) | ((int)('1') << 16) | ((int)('1') << 24)),
+        YUV420 = ((int)('Y') | ((int)('U') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+        YVU420 = ((int)('Y') | ((int)('V') << 8) | ((int)('1') << 16) | ((int)('2') << 24)),
+        YUV422 = ((int)('Y') | ((int)('U') << 8) | ((int)('1') << 16) | ((int)('6') << 24)),
+        YVU422 = ((int)('Y') | ((int)('V') << 8) | ((int)('1') << 16) | ((int)('6') << 24)),
+        YUV444 = ((int)('Y') | ((int)('U') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+        YVU444 = ((int)('Y') | ((int)('V') << 8) | ((int)('2') << 16) | ((int)('4') << 24)),
+    }
+
+    [Flags]
+    enum SurfaceFlags
+    {
+        Scanout = (1 << 0),
+        Cursor64x64 = (1 << 1),
+        Rendering = (1 << 2),
+        Write = (1 << 3),
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    struct BufferObject : IEquatable<BufferObject>
+    {
+        IntPtr buffer;
+
+        public static readonly BufferObject Zero =
+            default(BufferObject);
+
+        public int Write(byte[] data)
+        {
+            unsafe
+            {
+                fixed (byte* pdata = data)
+                {
+                    return Gbm.BOWrite(buffer, (IntPtr)pdata, (IntPtr)data.Length);
+                }
+            }
+        }
+
+        public void SetUserData(IntPtr data, DestroyUserDataCallback destroyFB)
+        {
+            Gbm.BOSetUserData(buffer, data, destroyFB);
+        }
+
+        public Device Device
+        {
+            get { return Gbm.BOGetDevice(buffer); }
+        }
+
+        public int Handle
+        {
+            get { return Gbm.BOGetHandle(buffer).ToInt32(); }
+        }
+
+        public int Width
+        {
+            get { return Gbm.BOGetWidth(buffer); }
+        }
+
+        public int Height
+        {
+            get { return Gbm.BOGetHeight(buffer); }
+        }
+
+        public int Stride
+        {
+            get { return Gbm.BOGetStride(buffer); }
+        }
+
+        public void Dispose()
+        {
+            Gbm.DestroyBuffer(this);
+            buffer = IntPtr.Zero;
+        }
+
+        public static bool operator ==(BufferObject left, BufferObject right)
+        {
+            return left.Equals(right);
+        }
+
+        public static bool operator !=(BufferObject left, BufferObject right)
+        {
+            return !left.Equals(right);
+        }
+
+        public override bool Equals(object obj)
+        {
+            return
+                obj is BufferObject &&
+                this.Equals((BufferObject)obj);
+        }
+
+        public override int GetHashCode()
+        {
+            return buffer.GetHashCode();
+        }
+
+        public override string ToString()
+        {
+            return string.Format("[BufferObject: {0}]", buffer);
+        }
+
+        #region IEquatable implementation
+
+        public bool Equals(BufferObject other)
+        {
+            return buffer == other.buffer;
+        }
+
+        #endregion
+    }
+}
+

Source/OpenTK/Platform/Linux/Bindings/Kms.cs

@@ -0,0 +1,46 @@
+#region License
+//
+// Kms.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 
+//
+// 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.Runtime.InteropServices;
+
+namespace OpenTK.Platform.Linux
+{
+    class Kms
+    {
+        const string lib = "libkms";
+
+        [DllImport(lib, EntryPoint = "kms_bo_map", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int MapBuffer(IntPtr bo, out IntPtr @out);
+
+        [DllImport(lib, EntryPoint = "kms_bo_unmap", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int UnmapBuffer(IntPtr bo);
+    }
+}
+

Source/OpenTK/Platform/Linux/Bindings/LibInput.cs

@@ -0,0 +1,330 @@
+#region License
+//
+// LibInput.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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
+
+#pragma warning disable 0169, 0219
+
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace OpenTK.Platform.Linux
+{
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    delegate int OpenRestrictedCallback(IntPtr path, int flags, IntPtr data);
+
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    delegate void CloseRestrictedCallback(int fd, IntPtr data);
+
+    class LibInput
+    {
+        internal const string lib = "libinput";
+
+        [DllImport(lib, EntryPoint = "libinput_udev_create_for_seat", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr CreateContext(InputInterface @interface,
+            IntPtr user_data, IntPtr udev, string seat_id);
+
+        [DllImport(lib, EntryPoint = "libinput_destroy", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void DestroyContext(IntPtr libinput);
+
+        [DllImport(lib, EntryPoint = "libinput_event_destroy", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void DestroyEvent(IntPtr @event);
+
+        [DllImport(lib, EntryPoint = "libinput_device_get_sysname", CallingConvention = CallingConvention.Cdecl)]
+        static extern IntPtr DeviceGetNameInternal(IntPtr device);
+        public static string DeviceGetName(IntPtr device)
+        {
+            unsafe
+            {
+                return new string((sbyte*)DeviceGetNameInternal(device));
+            }
+        }
+
+        [DllImport(lib, EntryPoint = "libinput_device_get_user_data", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr DeviceGetData(IntPtr device);
+
+        [DllImport(lib, EntryPoint = "libinput_device_set_user_data", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void DeviceSetData(IntPtr device, IntPtr user_data);
+
+        [DllImport(lib, EntryPoint = "libinput_device_get_output_name", CallingConvention = CallingConvention.Cdecl)]
+        static extern IntPtr DeviceGetOutputNameInternal(IntPtr device);
+        public static string DeviceGetOutputName(IntPtr device)
+        {
+            unsafe
+            {
+                sbyte* pname = (sbyte*)DeviceGetOutputNameInternal(device);
+                return pname == null ? String.Empty : new string(pname);
+            }
+        }
+
+        [DllImport(lib, EntryPoint = "libinput_device_get_seat", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr DeviceGetSeat(IntPtr device);
+
+        [DllImport(lib, EntryPoint = "libinput_device_has_capability", CallingConvention = CallingConvention.Cdecl)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static extern bool DeviceHasCapability(IntPtr device, DeviceCapability capability);
+
+        [DllImport(lib, EntryPoint = "libinput_dispatch", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int Dispatch(IntPtr libinput);
+
+        [DllImport(lib, EntryPoint = "libinput_event_get_device", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr GetDevice(IntPtr @event);
+
+        [DllImport(lib, EntryPoint = "libinput_get_event", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr GetEvent(IntPtr libinput);
+
+        [DllImport(lib, EntryPoint = "libinput_event_get_keyboard_event", CallingConvention = CallingConvention.Cdecl)]
+        public static extern KeyboardEvent GetKeyboardEvent(IntPtr @event);
+
+        [DllImport(lib, EntryPoint = "libinput_event_get_pointer_event", CallingConvention = CallingConvention.Cdecl)]
+        public static extern PointerEvent GetPointerEvent(IntPtr @event);
+
+        [DllImport(lib, EntryPoint = "libinput_event_get_type", CallingConvention = CallingConvention.Cdecl)]
+        public static extern InputEventType GetEventType(IntPtr @event);
+
+        [DllImport(lib, EntryPoint = "libinput_get_fd", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int GetFD(IntPtr libinput);
+
+        [DllImport(lib, EntryPoint = "libinput_next_event_type", CallingConvention = CallingConvention.Cdecl)]
+        public static extern InputEventType NextEventType(IntPtr libinput);
+
+        [DllImport(lib, EntryPoint = "libinput_resume", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void Resume(IntPtr libinput);
+
+        [DllImport(lib, EntryPoint = "libinput_suspend", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void Suspend(IntPtr libinput);
+
+        [DllImport(lib, EntryPoint = "libinput_seat_get_logical_name", CallingConvention = CallingConvention.Cdecl)]
+        static extern public IntPtr SeatGetLogicalNameInternal(IntPtr seat);
+        public static string SeatGetLogicalName(IntPtr seat)
+        {
+            unsafe
+            {
+                return new string((sbyte*)SeatGetLogicalNameInternal(seat));
+            }
+        }
+
+        [DllImport(lib, EntryPoint = "libinput_seat_get_physical_name", CallingConvention = CallingConvention.Cdecl)]
+        static extern public IntPtr SeatGetPhysicalNameInternal(IntPtr seat);
+        public static string SeatGetPhysicalName(IntPtr seat)
+        {
+            unsafe
+            {
+                return new string((sbyte*)SeatGetPhysicalNameInternal(seat));
+            }
+        }
+    }
+
+    enum DeviceCapability
+    {
+        Keyboard = 0,
+        Mouse,
+        Touch
+    }
+
+    enum InputEventType
+    {
+        None = 0,
+
+        DeviceAdded,
+        DeviceRemoved,
+
+        KeyboardKey = 300,
+
+        PointerMotion = 400,
+        PointerMotionAbsolute,
+        PointerButton,
+        PointerAxis,
+
+        TouchDown = 500,
+        TouchUP,
+        TouchMotion,
+        TouchCancel,
+
+        /// \internal
+        /// <summary>
+        /// Signals the end of a set of touchpoints at one device sample
+        /// time. This event has no coordinate information attached.
+        /// </summary>
+        TouchFrame
+    }
+
+    enum ButtonState
+    {
+        Released = 0,
+        Pressed = 1
+    }
+
+    enum KeyState
+    {
+        Released = 0,
+        Pressed = 1
+    }
+
+    enum PointerAxis
+    {
+        VerticalScroll = 0,
+        HorizontalScroll = 1
+    }
+
+    struct Fixed24
+    {
+        internal readonly int Value;
+
+        public static implicit operator double(Fixed24 n)
+        {
+            long l = ((1023L + 44L) << 52) + (1L << 51) + n.Value;
+            unsafe
+            {
+                double d = *(double*)&l;
+                return d - (3L << 43);
+            }
+        }
+
+        public static implicit operator float(Fixed24 n)
+        {
+            return (float)(double)n;
+        }
+
+        public static explicit operator int(Fixed24 n)
+        {
+            return n.Value >> 8;
+        }
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    class InputInterface
+    {
+        internal readonly IntPtr open;
+        internal readonly IntPtr close;
+
+        public InputInterface(
+            OpenRestrictedCallback open_restricted,
+            CloseRestrictedCallback close_restricted)
+        {
+            if (open_restricted == null || close_restricted == null)
+                throw new ArgumentNullException();
+
+            open = Marshal.GetFunctionPointerForDelegate(open_restricted);
+            close = Marshal.GetFunctionPointerForDelegate(close_restricted);
+        }
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    struct KeyboardEvent
+    {
+        IntPtr @event;
+
+        public IntPtr BaseEvent { get { return GetBaseEvent(@event); } }
+        public IntPtr Event { get { return @event; } }
+        public uint Time { get { return GetTime(@event); } }
+        public uint Key { get { return GetKey(@event); } }
+        public uint KeyCount { get { return GetSeatKeyCount(@event); } }
+        public KeyState KeyState { get { return GetKeyState(@event); } }
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_keyboard_get_time", CallingConvention = CallingConvention.Cdecl)]
+        static extern uint GetTime(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_keyboard_get_base_event", CallingConvention = CallingConvention.Cdecl)]
+        static extern IntPtr GetBaseEvent(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_keyboard_get_seat_key_count", CallingConvention = CallingConvention.Cdecl)]
+        static extern uint GetSeatKeyCount(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_keyboard_get_key", CallingConvention = CallingConvention.Cdecl)]
+        static extern uint GetKey(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_keyboard_get_key_state", CallingConvention = CallingConvention.Cdecl)]
+        static extern KeyState GetKeyState(IntPtr @event);
+    }
+
+
+    [StructLayout(LayoutKind.Sequential)]
+    struct PointerEvent
+    {
+        IntPtr @event;
+
+        public IntPtr BaseEvent { get { return GetBaseEvent(@event); } }
+        public IntPtr Event { get { return @event; } }
+        public uint Time { get { return GetTime(@event); } }
+        public EvdevButton Button { get { return (EvdevButton)GetButton(@event); } }
+        public uint ButtonCount { get { return GetButtonCount(@event); } }
+        public ButtonState ButtonState { get { return GetButtonState(@event); } }
+        public PointerAxis Axis { get { return GetAxis(@event); } }
+        public Fixed24 AxisValue { get { return GetAxisValue(@event); } }
+        public Fixed24 DeltaX { get { return GetDX(@event); } }
+        public Fixed24 DeltaY { get { return GetDY(@event); } }
+        public Fixed24 X { get { return GetAbsX(@event); } }
+        public Fixed24 Y { get { return GetAbsY(@event); } }
+        public Fixed24 TransformedX(int width) { return GetAbsXTransformed(@event, width); }
+        public Fixed24 TransformedY(int height) { return GetAbsYTransformed(@event, height); }
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_time", CallingConvention = CallingConvention.Cdecl)]
+        static extern uint GetTime(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_base_event", CallingConvention = CallingConvention.Cdecl)]
+        static extern IntPtr GetBaseEvent(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_seat_key_count", CallingConvention = CallingConvention.Cdecl)]
+        static extern uint GetSeatKeyCount(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_button", CallingConvention = CallingConvention.Cdecl)]
+        static extern uint GetButton(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_seat_button_count", CallingConvention = CallingConvention.Cdecl)]
+        static extern uint GetButtonCount(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_button_state", CallingConvention = CallingConvention.Cdecl)]
+        static extern ButtonState GetButtonState(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_axis", CallingConvention = CallingConvention.Cdecl)]
+        static extern PointerAxis GetAxis(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_axis_value", CallingConvention = CallingConvention.Cdecl)]
+        static extern Fixed24 GetAxisValue(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_dx", CallingConvention = CallingConvention.Cdecl)]
+        static extern Fixed24 GetDX(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_dy", CallingConvention = CallingConvention.Cdecl)]
+        static extern Fixed24 GetDY(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_absolute_x", CallingConvention = CallingConvention.Cdecl)]
+        static extern Fixed24 GetAbsX(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_absolute_y", CallingConvention = CallingConvention.Cdecl)]
+        static extern Fixed24 GetAbsY(IntPtr @event);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_absolute_x_transformed", CallingConvention = CallingConvention.Cdecl)]
+        static extern Fixed24 GetAbsXTransformed(IntPtr @event, int width);
+
+        [DllImport(LibInput.lib, EntryPoint = "libinput_event_pointer_get_absolute_y_transformed", CallingConvention = CallingConvention.Cdecl)]
+        static extern Fixed24 GetAbsYTransformed(IntPtr @event, int height);
+    }
+}
+

Source/OpenTK/Platform/Linux/Bindings/Libc.cs

@@ -0,0 +1,178 @@
+#region License
+//
+// Linux.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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.Runtime.InteropServices;
+using System.Text;
+
+namespace OpenTK.Platform.Linux
+{
+    partial class Libc
+    {
+        const string lib = "libc";
+
+        [DllImport(lib)]
+        public static extern int dup(int file);
+
+        [DllImport(lib)]
+        public static extern int dup2(int file1, int file2);
+
+        [DllImport(lib)]
+        public static extern int ioctl(int d, JoystickIoctlCode request, ref int data);
+
+        [DllImport(lib)]
+        public static extern int ioctl(int d, JoystickIoctlCode request, StringBuilder data);
+
+        [DllImport(lib)]
+        public static extern int ioctl(int d, EvdevIoctlCode request, out EvdevInputId data);
+
+        [DllImport(lib)]
+        public static extern int ioctl(int d, KeyboardIoctlCode request, ref IntPtr data);
+
+        [DllImport(lib)]
+        public static extern int ioctl(int d, KeyboardIoctlCode request, int data);
+
+        [DllImport(lib)]
+        public static extern int open([MarshalAs(UnmanagedType.LPStr)]string pathname, OpenFlags flags);
+
+        [DllImport(lib)]
+        public static extern int open(IntPtr pathname, OpenFlags flags);
+
+        [DllImport(lib)]
+        public static extern int close(int fd);
+
+        [DllImport(lib)]
+        unsafe public static extern IntPtr read(int fd, void* buffer, UIntPtr count);
+
+        public static int read(int fd, out byte b)
+        {
+            unsafe
+            {
+                fixed (byte* pb = &b)
+                {
+                    return read(fd, pb, (UIntPtr)1).ToInt32();
+                }
+            }
+        }
+
+        public static int read(int fd, out short s)
+        {
+            unsafe
+            {
+                fixed (short* ps = &s)
+                {
+                    return read(fd, ps, (UIntPtr)2).ToInt32();
+                }
+            }
+        }
+
+        [DllImport(lib)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static extern bool isatty(int fd);
+    }
+
+    enum ErrorNumber
+    {
+        Interrupted = 4,
+        Again = 11,
+        InvalidValue = 22,
+    }
+
+    [Flags]
+    enum OpenFlags
+    {
+        ReadOnly = 0x0000,
+        WriteOnly = 0x0001,
+        ReadWrite = 0x0002,
+        NonBlock = 0x0800,
+        CloseOnExec = 0x0080000
+    }
+
+    enum EvdevIoctlCode : uint
+    {
+        Id = ((byte)'E' << 8) | (0x02 << 0) //EVIOCGID, which is _IOR('E', 0x02, struct input_id)
+    }
+
+    [Flags]
+    enum JoystickEventType : byte
+    {
+        Button = 0x01,    // button pressed/released
+        Axis = 0x02,      // joystick moved
+        Init = 0x80       // initial state of device
+    }
+
+    enum JoystickIoctlCode : uint
+    {
+        Version = 0x80046a01,
+        Axes = 0x80016a11,
+        Buttons = 0x80016a12,
+        Name128 = (2u << 30) | (0x6A << 8) | (0x13 << 0) | (128 << 16) //JSIOCGNAME(128), which is _IOC(_IO_READ, 'j', 0x13, len)
+    }
+
+    enum KeyboardIoctlCode
+    {
+        GetMode = 0x4b44,
+        SetMode = 0x4b45,
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    struct Stat
+    {
+        public IntPtr dev;     /* ID of device containing file */
+        public IntPtr ino;     /* inode number */
+        public IntPtr mode;    /* protection */
+        public IntPtr nlink;   /* number of hard links */
+        public IntPtr uid;     /* user ID of owner */
+        public IntPtr gid;     /* group ID of owner */
+        public IntPtr rdev;    /* device ID (if special file) */
+        public IntPtr size;    /* total size, in bytes */
+        public IntPtr blksize; /* blocksize for file system I/O */
+        public IntPtr blocks;  /* number of 512B blocks allocated */
+        public IntPtr atime;   /* time of last access */
+        public IntPtr mtime;   /* time of last modification */
+        public IntPtr ctime;   /* time of last status change */
+    }
+
+    struct EvdevInputId
+    {
+        public ushort BusType;
+        public ushort Vendor;
+        public ushort Product;
+        public ushort Version;
+    }
+
+    struct JoystickEvent
+    {
+        public uint Time;    // (u32) event timestamp in milliseconds
+        public short Value;  // (s16) value
+        public JoystickEventType Type;    // (u8)  event type
+        public byte Number;  // (u8)  axis/button number
+    }
+}
+

Source/OpenTK/Platform/Linux/Bindings/Poll.cs

@@ -0,0 +1,65 @@
+#region License
+//
+// Poll.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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.Runtime.InteropServices;
+
+namespace OpenTK.Platform.Linux
+{
+    partial class Libc
+    {
+        [DllImport(lib, CallingConvention = CallingConvention.Cdecl, SetLastError = true)]
+        public static extern int poll(ref PollFD fd, IntPtr fd_count, int timeout);
+
+        public static int poll(ref PollFD fd, int fd_count, int timeout)
+        {
+            return poll(ref fd, (IntPtr)fd_count, timeout);
+        }
+    }
+
+    [Flags]
+    enum PollFlags : short
+    {
+        In = 0x01,
+        Pri = 0x02,
+        Out = 0x04,
+        Error = 0x08,
+        Hup = 0x10,
+        Invalid = 0x20,
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    struct PollFD
+    {
+        public int fd;
+        public PollFlags events;
+        public PollFlags revents;
+    }
+}
+

Source/OpenTK/Platform/Linux/Bindings/Terminal.cs

@@ -0,0 +1,170 @@
+#region License
+//
+// Terminal.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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.Runtime.InteropServices;
+
+namespace OpenTK.Platform.Linux
+{
+    class Terminal
+    {
+        const string lib = "libc";
+
+        [DllImport(lib, EntryPoint = "isatty", CallingConvention = CallingConvention.Cdecl)]
+        [return: MarshalAs(UnmanagedType.I4)]
+        public static extern bool IsTerminal(int fd);
+
+        [DllImport(lib, EntryPoint = "tcgetattr", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int GetAttributes(int fd, out TerminalState state);
+
+        [DllImport(lib, EntryPoint = "tcsetattr", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int SetAttributes(int fd, OptionalActions actions, ref TerminalState state);
+    }
+
+    [Flags]
+    enum InputFlags
+    {
+        IGNBRK = 1 << 0,
+        BRKINT = 1 << 1,
+        IGNPAR = 1 << 2,
+        PARMRK = 1 << 3,
+        INPCK  = 1 << 4,
+        ISTRIP = 1 << 5,
+        INLCR  = 1 << 6,
+        IGNCR  = 1 << 7,
+        ICRNL  = 1 << 8,
+        IUCLC  = 1 << 9,
+        IXON   = 1 << 10,
+        IXANY  = 1 << 11,
+        IXOFF  = 1 << 12,
+        IMAXBEL = 1 << 13,
+        IUTF8  = 1 << 14,
+    }
+
+    [Flags]
+    enum OutputFlags
+    {
+        OPOST  = 1 << 1,
+        OLCUC  = 1 << 2,
+        ONLCR  = 1 << 3,
+        OCRNL  = 1 << 4,
+        ONOCR  = 1 << 5,
+        ONLRET = 1 << 6,
+        OFILL  = 1 << 7,
+        OFDEL  = 1 << 8,
+    }
+
+    [Flags]
+    enum ControlFlags
+    {
+        B0 = 0, // hang up
+        B50,
+        B75,
+        B110,
+        B134,
+        B150,
+        B200,
+        B300,
+        B600,
+        B1200,
+        B1800,
+        B2400,
+        B4800,
+        B9600,
+        B19200,
+        B38400,
+    }
+
+    [Flags]
+    enum LocalFlags
+    {
+        ISIG = 0x01,
+        ICANON = 0x02,
+        ECHO = 0x08,
+    }
+
+    enum OptionalActions
+    {
+        NOW = 0,
+        DRAIN = 1,
+        FLUSH = 2
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    struct TerminalState
+    {
+        public InputFlags InputMode;
+        public OutputFlags OutputMode;
+        public ControlFlags ControlMode;
+        public LocalFlags LocalMode;
+        public byte LineDiscipline;
+        public ControlCharacters ControlCharacters;
+        public int InputSpeed;
+        public int OutputSpeed;
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    struct ControlCharacters
+    {
+        public byte VINTR;
+        public byte VQUIT;
+        public byte VERASE;
+        public byte VKILL;
+        public byte VEOF;
+        public byte VTIME;
+        public byte VMIN;
+        public byte VSWTC;
+        public byte VSTART;
+        public byte VSTOP;
+        public byte VSUSP;
+        public byte VEOL;
+        public byte VREPRINT;
+        public byte VDISCARD;
+        public byte VWERASE;
+        public byte VLNEXT;
+        public byte VEOL2;
+        public byte C17;
+        public byte C18;
+        public byte C19;
+        public byte C20;
+        public byte C21;
+        public byte C22;
+        public byte C23;
+        public byte C24;
+        public byte C25;
+        public byte C26;
+        public byte C27;
+        public byte C28;
+        public byte C29;
+        public byte C30;
+        public byte C31;
+
+    }
+}
+

Source/OpenTK/Platform/Linux/Bindings/Udev.cs

@@ -0,0 +1,46 @@
+#region License
+//
+// Udev.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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.Runtime.InteropServices;
+
+namespace OpenTK.Platform.Linux
+{
+    class Udev
+    {
+        const string lib = "libudev";
+
+        [DllImport(lib, EntryPoint = "udev_new", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr New();
+
+        [DllImport(lib, EntryPoint = "udev_destroy", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void Destroy(IntPtr Udev);
+    }
+}
+

Source/OpenTK/Platform/Linux/DefaultCursor.cs

@@ -0,0 +1,76 @@
+#region License
+//
+// DefaultCursor.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 
+//
+// 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;
+
+namespace OpenTK.Platform.Linux
+{
+    static class Cursors
+    {
+        public static readonly MouseCursor Default =
+            new MouseCursor(8, 4, 32, 32, new byte[]
+            {
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x1A, 0x1A, 0x1A, 0x1F, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x05, 0xF1, 0xF1, 0xF1, 0xF3, 0x16, 0x16, 0x16, 0x2B, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
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+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+            });
+
+        public static readonly MouseCursor Empty = MouseCursor.Empty;
+    }
+}
+

Source/OpenTK/Platform/Linux/LinuxDisplayDriver.cs

@@ -0,0 +1,413 @@
+#region License
+//
+// LinuxDisplayDriver.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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 OpenTK;
+using OpenTK.Graphics;
+
+namespace OpenTK.Platform.Linux
+{
+    // Stores platform-specific information about a display
+    class LinuxDisplay
+    {
+        public int FD;
+        public IntPtr Connector;
+        public IntPtr Crtc;
+        public IntPtr Encoder;
+
+        unsafe public ModeConnector* pConnector { get { return (ModeConnector*)Connector; } }
+        unsafe public ModeCrtc* pCrtc { get { return (ModeCrtc*)Crtc; } }
+        unsafe public ModeEncoder* pEncoder { get { return (ModeEncoder*)Encoder; } }
+        /*
+        public ModeInfo Mode
+        {
+            get
+            {
+                if (Crtc == IntPtr.Zero)
+                    throw new InvalidOperationException();
+
+                unsafe
+                {
+                    return pCrtc->mode;
+                }
+            }
+        }
+        */
+
+        public ModeInfo OriginalMode;
+
+        public int Id
+        {
+            get
+            {
+                if (Crtc == IntPtr.Zero)
+                    throw new InvalidOperationException();
+
+                unsafe
+                {
+                    return (int)pCrtc->crtc_id;
+                }
+            }
+        }
+
+        public LinuxDisplay(int fd, IntPtr c, IntPtr e, IntPtr r)
+        {
+            FD = fd;
+            Connector = c;
+            Encoder = e;
+            Crtc = r;
+            unsafe
+            {
+                OriginalMode = pCrtc->mode; // in case we change resolution later on
+            }
+        }
+    }
+
+    class LinuxDisplayDriver : DisplayDeviceBase
+    {
+        readonly int FD;
+        readonly Dictionary<int, int> DisplayIds =
+            new Dictionary<int, int>();
+
+        public LinuxDisplayDriver(int fd)
+        {
+            Debug.Print("[KMS] Creating LinuxDisplayDriver for fd:{0}", fd);
+            Debug.Indent();
+            try
+            {
+                FD = fd;
+                UpdateDisplays(fd);
+            }
+            finally
+            {
+                Debug.Unindent();
+            }
+        }
+
+        /// \internal
+        /// <summary>
+        /// Queries the specified GPU for connected displays and, optionally,
+        /// returns the list of displays.
+        /// </summary>
+        /// <returns><c>true</c>, if at least one display is connected, <c>false</c> otherwise.</returns>
+        /// <param name="fd">The fd for the GPU to query, obtained through open("/dev/dri/card0").</param>
+        /// <param name="displays">
+        /// If not null, this will contain a list <see cref="LinuxDisplay"/> instances,
+        /// one for each connected display.
+        /// </param>
+        internal static bool QueryDisplays(int fd, List<LinuxDisplay> displays)
+        {
+            unsafe
+            {
+                bool has_displays = false;
+                if (displays != null)
+                {
+                    displays.Clear();
+                }
+
+                ModeRes* resources = (ModeRes*)Drm.ModeGetResources(fd);
+                if (resources == null)
+                {
+                    Debug.Print("[KMS] Drm.ModeGetResources failed.");
+                    return false;
+                }
+                Debug.Print("[KMS] DRM found {0} connectors", resources->count_connectors);
+
+                // Search for a valid connector
+                ModeConnector* connector = null;
+                for (int i = 0; i < resources->count_connectors; i++)
+                {
+                    connector = (ModeConnector*)Drm.ModeGetConnector(fd,
+                        *(resources->connectors + i));
+                    if (connector != null)
+                    {
+                        bool success = false;
+                        LinuxDisplay display = null;
+                        try
+                        {
+                            if (connector->connection == ModeConnection.Connected &&
+                            connector->count_modes > 0)
+                            {
+                                success = QueryDisplay(fd, connector, out display);
+                                has_displays |= success;
+                            }
+                        }
+                        catch (Exception e)
+                        {
+                            Debug.Print("[KMS] Failed to add display. Error: {0}", e);
+                        }
+
+                        if (success && displays != null)
+                        {
+                            displays.Add(display);
+                        }
+                        else
+                        {
+                            Drm.ModeFreeConnector((IntPtr)connector);
+                            connector = null;
+                        }
+                    }
+                }
+
+                return has_displays;
+            }
+        }
+
+        void UpdateDisplays(int fd)
+        {
+            unsafe
+            {
+                lock (this)
+                {
+                    AvailableDevices.Clear();
+                    DisplayIds.Clear();
+
+                    List<LinuxDisplay> displays = new List<LinuxDisplay>();
+                    if (QueryDisplays(fd, displays))
+                    {
+                        foreach (LinuxDisplay display in displays)
+                        {
+                            AddDisplay(display);
+                        }
+                    }
+
+                    if (AvailableDevices.Count == 0)
+                    {
+                        Debug.Print("[KMS] Failed to find any active displays");
+                    }
+                }
+            }
+        }
+
+        unsafe static ModeEncoder* GetEncoder(int fd, ModeConnector* c)
+        {
+            ModeEncoder* encoder = null;
+            for (int i = 0; i < c->count_encoders && encoder == null; i++)
+            {
+                ModeEncoder* e = (ModeEncoder*)Drm.ModeGetEncoder(
+                    fd, *(c->encoders + i));
+                if (e != null)
+                {
+                    if (e->encoder_id == c->encoder_id)
+                    {
+                        encoder = e;
+                    }
+                    else
+                    {
+                        Drm.ModeFreeEncoder((IntPtr)e);
+                    }
+                }
+            }
+
+            if (encoder != null)
+            {
+                Debug.Print("[KMS] Encoder {0} found for connector {1}",
+                    encoder->encoder_id, c->connector_id);
+            }
+            else
+            {
+                Debug.Print("[KMS] Failed to find encoder for connector {0}", c->connector_id);
+            }
+
+            return encoder;
+        }
+
+        unsafe static ModeCrtc* GetCrtc(int fd, ModeEncoder* encoder)
+        {
+            ModeCrtc* crtc = (ModeCrtc*)Drm.ModeGetCrtc(fd, encoder->crtc_id);
+            if (crtc != null)
+            {
+                Debug.Print("[KMS] CRTC {0} found for encoder {1}",
+                    encoder->crtc_id, encoder->encoder_id);
+            }
+            else
+            {
+                Debug.Print("[KMS] Failed to find crtc {0} for encoder {1}",
+                    encoder->crtc_id, encoder->encoder_id);
+            }
+            return crtc;
+        }
+
+        unsafe static void GetModes(LinuxDisplay display, DisplayResolution[] modes, out DisplayResolution current)
+        {
+            int mode_count = display.pConnector->count_modes;
+            Debug.Print("[KMS] Display supports {0} mode(s)", mode_count);
+            for (int i = 0; i < mode_count; i++)
+            {
+                ModeInfo* mode = display.pConnector->modes + i;
+                if (mode != null)
+                {
+                    Debug.Print("Mode {0}: {1}x{2} @{3}", i,
+                        mode->hdisplay, mode->vdisplay, mode->vrefresh);
+                    DisplayResolution res = GetDisplayResolution(mode);
+                    modes[i] = res;
+                }
+            }
+
+            if (display.pCrtc->mode_valid != 0)
+            {
+                ModeInfo cmode = display.pCrtc->mode;
+                current = GetDisplayResolution(&cmode);
+            }
+            else
+            {
+                current = GetDisplayResolution(display.pConnector->modes);
+            }
+            Debug.Print("Current mode: {0}", current.ToString());
+        }
+
+        System.Drawing.Rectangle GetBounds(DisplayResolution current)
+        {
+            // Note: since we are not running a display manager, we are free
+            // to choose the display layout for multiple displays ourselves.
+            // We choose the simplest layout: displays are laid out side-by-side
+            // from left to right. Primary display is the first display we encounter.
+            int x = AvailableDevices.Count == 0 ?
+                0 : AvailableDevices[AvailableDevices.Count - 1].Bounds.Right;
+            int y = 0;
+
+            return new System.Drawing.Rectangle(
+                x, y, current.Width, current.Height);
+        }
+
+        void UpdateDisplayIndices(LinuxDisplay display, DisplayDevice device)
+        {
+            if (!DisplayIds.ContainsKey(display.Id))
+            {
+                Debug.Print("[KMS] Adding display {0} as {1}", display.Id, AvailableDevices.Count);
+                DisplayIds.Add(display.Id, AvailableDevices.Count);
+            }
+            int index = DisplayIds[display.Id];
+            if (index >= AvailableDevices.Count)
+            {
+                AvailableDevices.Add(device);
+            }
+            else
+            {
+                AvailableDevices[index] = device;
+            }
+        }
+
+        unsafe static bool QueryDisplay(int fd, ModeConnector* c, out LinuxDisplay display)
+        {
+            display = null;
+
+            // Find corresponding encoder
+            ModeEncoder* encoder = GetEncoder(fd, c);
+            if (encoder == null)
+                return false;
+
+            ModeCrtc* crtc = GetCrtc(fd, encoder);
+            if (crtc == null)
+                return false;
+
+            display = new LinuxDisplay(fd, (IntPtr)c, (IntPtr)encoder, (IntPtr)crtc);
+            return true;
+        }
+
+        unsafe void AddDisplay(LinuxDisplay display)
+        {
+            DisplayResolution[] modes = new DisplayResolution[display.pConnector->count_modes];
+            DisplayResolution current;
+            GetModes(display, modes, out current);
+
+            bool is_primary = AvailableDevices.Count == 0;
+            DisplayDevice device = new DisplayDevice(current, is_primary,
+                modes, GetBounds(current), display);
+
+            if (is_primary)
+            {
+                Primary = device;
+            }
+
+            UpdateDisplayIndices(display, device);
+
+            Debug.Print("[KMS] Added DisplayDevice {0}", device);
+        }
+
+        unsafe static DisplayResolution GetDisplayResolution(ModeInfo* mode)
+        {
+            return new DisplayResolution(
+                0, 0,
+                mode->hdisplay, mode->vdisplay,
+                32, // This is actually part of the framebuffer, not the DisplayResolution
+                mode->vrefresh);
+        }
+
+        unsafe static ModeInfo* GetModeInfo(LinuxDisplay display, DisplayResolution resolution)
+        {
+            for (int i = 0; i < display.pConnector->count_modes; i++)
+            {
+                ModeInfo* mode = display.pConnector->modes + i;
+                if (mode != null &&
+                    mode->hdisplay == resolution.Width &&
+                    mode->vdisplay == resolution.Height)
+                {
+                    return mode;
+                }
+            }
+            return null;
+        }
+
+        #region IDisplayDeviceDriver
+
+        public override bool TryChangeResolution(DisplayDevice device, DisplayResolution resolution)
+        {
+            unsafe
+            {
+                LinuxDisplay display = (LinuxDisplay)device.Id;
+                ModeInfo* mode = GetModeInfo(display, resolution);
+                int connector_id = display.pConnector->connector_id;
+                if (mode != null)
+                {
+                    return Drm.ModeSetCrtc(FD, display.Id, 0, 0, 0,
+                        &connector_id, 1, mode) == 0;
+                }
+                return false;
+            }
+        }
+
+        public override bool TryRestoreResolution(DisplayDevice device)
+        {
+            unsafe
+            {
+                LinuxDisplay display = (LinuxDisplay)device.Id;
+                ModeInfo mode = display.OriginalMode;
+                int connector_id = display.pConnector->connector_id;
+                return Drm.ModeSetCrtc(FD, display.Id, 0, 0, 0,
+                    &connector_id, 1, &mode) == 0;
+            }
+        }
+
+        #endregion
+    }
+}
+

Source/OpenTK/Platform/Linux/LinuxFactory.cs

@@ -0,0 +1,248 @@
+#region License
+//
+// LinuxFactory.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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.Diagnostics;
+using System.IO;
+using System.Runtime.InteropServices;
+using OpenTK.Graphics;
+using OpenTK.Input;
+using OpenTK.Platform.Egl;
+
+namespace OpenTK.Platform.Linux
+{
+    using Egl = OpenTK.Platform.Egl.Egl;
+
+    // Linux KMS platform
+    class LinuxFactory : PlatformFactoryBase
+    {
+        int _fd;
+        IntPtr gbm_device;
+        IntPtr egl_display;
+
+        IJoystickDriver2 JoystickDriver;
+        LinuxInput MouseKeyboardDriver;
+
+        const string gpu_path = "/dev/dri"; // card0, card1, ...
+
+        public LinuxFactory()
+        {
+            Debug.Print("[KMS] Using Linux/KMS backend.");
+        }
+
+        #region Private Members
+
+        int gpu_fd
+        {
+            get
+            {
+                lock (this)
+                {
+                    if (_fd == 0)
+                    {
+                        _fd = CreateDisplay(out gbm_device, out egl_display);
+                    }
+                    return _fd;
+                }
+            }
+        }
+
+        static int CreateDisplay(out IntPtr gbm_device, out IntPtr egl_display)
+        {
+            // Query all GPUs until we find one that has a connected display.
+            // This is necessary in multi-gpu systems, where only one GPU
+            // can output a signal.
+            // Todo: allow OpenTK to drive multiple GPUs
+            // Todo: allow OpenTK to run on an offscreen GPU
+            // Todo: allow the user to pick a GPU
+            int fd = 0;
+            gbm_device = IntPtr.Zero;
+            egl_display = IntPtr.Zero;
+
+            var files = Directory.GetFiles(gpu_path);
+            foreach (var gpu in files)
+            {
+                if (Path.GetFileName(gpu).StartsWith("card"))
+                {
+                    int test_fd = SetupDisplay(gpu, out gbm_device, out egl_display);
+                    if (test_fd >= 0)
+                    {
+                        try
+                        {
+                            if (LinuxDisplayDriver.QueryDisplays(test_fd, null))
+                            {
+                                fd = test_fd;
+                                break;
+                            }
+                        }
+                        catch (Exception e)
+                        {
+                            Debug.WriteLine(e.ToString());
+                        }
+
+                        Debug.Print("[KMS] GPU '{0}' is not connected, skipping.", gpu);
+                        Libc.close(test_fd);
+                    }
+                }
+            }
+
+            if (fd == 0)
+            {
+                Debug.Print("[Error] No valid GPU found, bailing out.");
+                throw new PlatformNotSupportedException();
+            }
+
+            return fd;
+        }
+
+        static int SetupDisplay(string gpu, out IntPtr gbm_device, out IntPtr egl_display)
+        {
+            Debug.Print("[KMS] Attempting to use gpu '{0}'.", gpu);
+
+            gbm_device = IntPtr.Zero;
+            egl_display = IntPtr.Zero;
+            
+            int fd = Libc.open(gpu, OpenFlags.ReadWrite | OpenFlags.CloseOnExec);
+            if (fd < 0)
+            {
+                Debug.Print("[KMS] Failed to open gpu");
+                return fd;
+            }
+            Debug.Print("[KMS] GPU '{0}' opened as fd:{1}", gpu, fd);
+
+            gbm_device = Gbm.CreateDevice(fd);
+            if (gbm_device == IntPtr.Zero)
+            {
+                throw new NotSupportedException("[KMS] Failed to create GBM device");
+            }
+            Debug.Print("[KMS] GBM {0:x} created successfully; ", gbm_device);
+
+            egl_display = Egl.GetDisplay(gbm_device);
+            if (egl_display == IntPtr.Zero)
+            {
+                throw new NotSupportedException("[KMS] Failed to create EGL display");
+            }
+            Debug.Print("[KMS] EGL display {0:x} created successfully", egl_display);
+
+            int major, minor;
+            if (!Egl.Initialize(egl_display, out major, out minor))
+            {
+                ErrorCode error = Egl.GetError();
+                throw new NotSupportedException("[KMS] Failed to initialize EGL display. Error code: " + error);
+            }
+            Debug.Print("[KMS] EGL {0}.{1} initialized successfully on display {2:x}", major, minor, egl_display);
+
+            return fd;
+        }
+
+        #endregion
+
+        #region Protected Members
+
+        protected override void Dispose(bool manual)
+        {
+            if (egl_display != IntPtr.Zero)
+            {
+                Debug.Print("[KMS] Terminating EGL.");
+                Egl.Terminate(egl_display);
+                egl_display = IntPtr.Zero;
+            }
+            if (gbm_device != IntPtr.Zero)
+            {
+                Debug.Print("[KMS] Destroying GBM device.");
+                Gbm.DestroyDevice(gbm_device);
+                gbm_device = IntPtr.Zero;
+            }
+            if (_fd >= 0)
+            {
+                Debug.Print("[KMS] Closing GPU fd.");
+                Libc.close(_fd);
+            }
+
+            base.Dispose(manual);
+        }
+
+        #endregion
+
+        #region IPlatformFactory Members
+
+        public override INativeWindow CreateNativeWindow(int x, int y, int width, int height, string title, GraphicsMode mode, GameWindowFlags options, DisplayDevice display_device)
+        {
+            return new LinuxNativeWindow(egl_display, gbm_device, gpu_fd, x, y, width, height, title, mode, options, display_device);
+        }
+
+        public override IDisplayDeviceDriver CreateDisplayDeviceDriver()
+        {
+            return new LinuxDisplayDriver(gpu_fd);
+        }
+
+        public override IGraphicsContext CreateGLContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shareContext, bool directRendering, int major, int minor, GraphicsContextFlags flags)
+        {
+            return new LinuxGraphicsContext(mode, (LinuxWindowInfo)window, shareContext, major, minor, flags);
+        }
+
+        public override GraphicsContext.GetCurrentContextDelegate CreateGetCurrentGraphicsContext()
+        {
+            return (GraphicsContext.GetCurrentContextDelegate)delegate
+            {
+                return new ContextHandle(Egl.GetCurrentContext());
+            };
+        }
+
+        public override IKeyboardDriver2 CreateKeyboardDriver()
+        {
+            lock (this)
+            {
+                MouseKeyboardDriver = MouseKeyboardDriver ?? new LinuxInput();
+                return MouseKeyboardDriver;
+            }
+        }
+
+        public override IMouseDriver2 CreateMouseDriver()
+        {
+            lock (this)
+            {
+                MouseKeyboardDriver = MouseKeyboardDriver ?? new LinuxInput();
+                return MouseKeyboardDriver;
+            }
+        }
+
+        public override IJoystickDriver2 CreateJoystickDriver()
+        {
+            lock (this)
+            {
+                JoystickDriver = JoystickDriver ?? new LinuxJoystick();
+                return JoystickDriver;
+            }
+        }
+
+        #endregion
+    }
+}
+

Source/OpenTK/Platform/Linux/LinuxGraphicsContext.cs

@@ -0,0 +1,303 @@
+#region License
+//
+// LinuxGraphicsContext.cs
+//
+// Author:
+//       thefiddler <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 
+//
+// 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.Diagnostics;
+using System.Runtime.InteropServices;
+using OpenTK.Graphics;
+
+namespace OpenTK.Platform.Linux
+{
+    /// \internal
+    /// <summary>
+    /// Defines an IGraphicsContext implementation for the Linux KMS framebuffer.
+    /// For Linux/X11 and other Unix operating systems, use the more generic
+    /// <see cref="OpenTK.Platform.Egl.EglUnixContext"/> instead.
+    /// </summary>
+    /// <remarks>
+    /// Note: to display our results, we need to allocate a GBM framebuffer
+    /// and point the scanout address to that via Drm.ModeSetCrtc.
+    /// </remarks>
+    class LinuxGraphicsContext : Egl.EglUnixContext
+    {
+        BufferObject bo, bo_next;
+        int fd;
+        bool is_flip_queued;
+        int swap_interval;
+
+        public LinuxGraphicsContext(GraphicsMode mode, LinuxWindowInfo window, IGraphicsContext sharedContext,
+            int major, int minor, GraphicsContextFlags flags)
+            : base(mode, window, sharedContext, major, minor, flags)
+        {
+            if (mode.Buffers < 1)
+                throw new ArgumentException();
+            fd = window.FD;
+
+            PageFlip = HandlePageFlip;
+            PageFlipPtr = Marshal.GetFunctionPointerForDelegate(PageFlip);
+        }
+
+        public override void SwapBuffers()
+        {
+            base.SwapBuffers();
+
+            bo_next = LockSurface();
+            int fb = GetFramebuffer(bo_next);
+
+            if (is_flip_queued)
+            {
+                // Todo: if we don't wait for the page flip,
+                // we drop all rendering buffers and get a crash
+                // in Egl.SwapBuffers(). We need to fix that
+                // before we can disable vsync.
+                WaitFlip(true); // WaitFlip(SwapInterval > 0)
+                if (is_flip_queued)
+                {
+                    Debug.Print("[KMS] Dropping frame");
+                    return;
+                }
+            }
+
+            QueueFlip(fb);
+        }
+
+        public override void Update(IWindowInfo window)
+        {
+            WaitFlip(true);
+
+            base.SwapBuffers();
+
+            bo = LockSurface();
+            int fb = GetFramebuffer(bo);
+            SetScanoutRegion(fb);
+        }
+
+        public override int SwapInterval
+        {
+            get
+            {
+                return swap_interval;
+            }
+            set
+            {
+                // We only support a SwapInterval of 0 (immediate)
+                // or 1 (vsynced).
+                // Todo: add support for SwapInterval of -1 (adaptive).
+                // This requires a small change in WaitFlip().
+                swap_interval = MathHelper.Clamp(value, 0, 1);
+            }
+        }
+
+        void WaitFlip(bool block)
+        {
+            PollFD fds = new PollFD();
+            fds.fd = fd;
+            fds.events = PollFlags.In;
+
+            EventContext evctx = new EventContext();
+            evctx.version = EventContext.Version;
+            evctx.page_flip_handler = PageFlipPtr;
+
+            int timeout = block ? -1 : 0;
+
+            while (is_flip_queued)
+            {
+                fds.revents = 0;
+                if (Libc.poll(ref fds, 1, timeout) < 0)
+                    break;
+
+                if ((fds.revents & (PollFlags.Hup | PollFlags.Error)) != 0)
+                    break;
+
+                if ((fds.revents & PollFlags.In) != 0)
+                    Drm.HandleEvent(fd, ref evctx);
+                else
+                    break;
+            }
+
+            // Page flip has taken place, update buffer objects
+            if (!is_flip_queued)
+            {
+                IntPtr gbm_surface = WindowInfo.Handle;
+                Gbm.ReleaseBuffer(gbm_surface, bo);
+                bo = bo_next;
+            }
+        }
+
+        void QueueFlip(int buffer)
+        {
+            LinuxWindowInfo wnd = WindowInfo as LinuxWindowInfo;
+            if (wnd == null)
+                throw new InvalidOperationException();
+
+            unsafe
+            {
+                int ret = Drm.ModePageFlip(fd, wnd.DisplayDevice.Id, buffer,
+                    PageFlipFlags.FlipEvent, IntPtr.Zero);
+
+                if (ret < 0)
+                {
+                    Debug.Print("[KMS] Failed to enqueue framebuffer flip. Error: {0}", ret);
+                }
+
+                is_flip_queued = true;
+            }
+        }
+
+        void SetScanoutRegion(int buffer)
+        {
+            LinuxWindowInfo wnd = WindowInfo as LinuxWindowInfo;
+            if (wnd == null)
+                throw new InvalidOperationException();
+
+            unsafe
+            {
+                ModeInfo* mode = wnd.DisplayDevice.pConnector->modes;
+                int connector_id = wnd.DisplayDevice.pConnector->connector_id;
+                int crtc_id = wnd.DisplayDevice.Id;
+
+                int x = 0;
+                int y = 0;
+                int connector_count = 1;
+                int ret = Drm.ModeSetCrtc(fd, crtc_id, buffer, x, y,
+                    &connector_id, connector_count, mode);
+
+                if (ret != 0)
+                {
+                    Debug.Print("[KMS] Drm.ModeSetCrtc{0}, {1}, {2}, {3}, {4:x}, {5}, {6:x}) failed. Error: {7}",
+                        fd, crtc_id, buffer, x, y, (IntPtr)connector_id, connector_count, (IntPtr)mode, ret);
+                }
+            }
+        }
+
+        BufferObject LockSurface()
+        {
+            IntPtr gbm_surface = WindowInfo.Handle;
+            return Gbm.LockFrontBuffer(gbm_surface);
+        }
+
+        int GetFramebuffer(BufferObject bo)
+        {
+            if (bo == BufferObject.Zero)
+                goto fail;
+
+            int bo_handle = bo.Handle;
+            if (bo_handle == 0)
+            {
+                Debug.Print("[KMS] Gbm.BOGetHandle({0:x}) failed.", bo);
+                goto fail;
+            }
+
+            int width = bo.Width;
+            int height = bo.Height;
+            int bpp = Mode.ColorFormat.BitsPerPixel;
+            int depth = Mode.Depth;
+            int stride = bo.Stride;
+
+            if (width == 0 || height == 0 || bpp == 0)
+            {
+                Debug.Print("[KMS] Invalid framebuffer format: {0}x{1} {2} {3} {4}",
+                    width, height, stride, bpp, depth);
+                goto fail;
+            }
+
+            int buffer;
+            int ret = Drm.ModeAddFB(
+                fd, width, height,
+                (byte)depth, (byte)bpp, stride, bo_handle,
+                out buffer);
+            if (ret != 0)
+            {
+                Debug.Print("[KMS] Drm.ModeAddFB({0}, {1}, {2}, {3}, {4}, {5}, {6}) failed. Error: {7}",
+                    fd, width, height, depth, bpp, stride, bo_handle, ret);
+                goto fail;
+            }
+
+            bo.SetUserData((IntPtr)buffer, DestroyFB);
+            return buffer;
+
+            fail:
+            Debug.Print("[Error] Failed to create framebuffer.");
+            return -1;
+        }
+
+        readonly IntPtr PageFlipPtr;
+        readonly PageFlipCallback PageFlip;
+        void HandlePageFlip(int fd,
+            int sequence,
+            int tv_sec,
+            int tv_usec,
+            IntPtr user_data)
+        {
+            is_flip_queued = false;
+        }
+
+        static readonly DestroyUserDataCallback DestroyFB = HandleDestroyFB;
+        static void HandleDestroyFB(BufferObject bo, IntPtr data)
+        {
+            IntPtr gbm = bo.Device;
+            int fb = data.ToInt32();
+            Debug.Print("[KMS] Destroying framebuffer {0}", fb);
+
+            if (fb != 0)
+            {
+                Drm.ModeRmFB(Gbm.DeviceGetFD(gbm), fb);
+            }
+        }
+
+        protected override void Dispose(bool manual)
+        {
+            if (manual)
+            {
+                // Reset the scanout region
+                LinuxWindowInfo wnd = WindowInfo as LinuxWindowInfo;
+                if (wnd != null)
+                {
+                    unsafe
+                    {
+                        int connector_id = wnd.DisplayDevice.pConnector->connector_id;
+                        ModeInfo mode = wnd.DisplayDevice.OriginalMode;
+                        Drm.ModeSetCrtc(fd,
+                            wnd.DisplayDevice.pCrtc->crtc_id,
+                            wnd.DisplayDevice.pCrtc->buffer_id,
+                            wnd.DisplayDevice.pCrtc->x,
+                            wnd.DisplayDevice.pCrtc->y,
+                            &connector_id,
+                            1,
+                            &mode);
+                    }
+                }
+            }
+            base.Dispose(manual);
+        }
+    }
+}
+
+
+

Source/OpenTK/Platform/Linux/LinuxInput.cs

@@ -0,0 +1,717 @@
+#region License
+//
+// LinuxKeyboardLibInput.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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.Drawing;
+using System.Runtime.InteropServices;
+using System.Threading;
+using OpenTK.Input;
+
+namespace OpenTK.Platform.Linux
+{
+    class LinuxInput : IKeyboardDriver2, IMouseDriver2, IDisposable
+    {
+        class DeviceBase
+        {
+            readonly IntPtr Device;
+            string name;
+            string output;
+            string logical_seat;
+            string physical_seat;
+
+            public DeviceBase(IntPtr device, int id)
+            {
+                Device = device;
+                Id = id;
+            }
+
+            public int Id
+            {
+                get
+                {
+                    return GetId(Device);
+                }
+                set
+                {
+                    LibInput.DeviceSetData(Device, (IntPtr)value);
+                }
+            }
+
+            public string Name
+            {
+                get
+                {
+                    name = name ?? LibInput.DeviceGetName(Device);
+                    return name;
+                }
+            }
+
+            public IntPtr Seat
+            {
+                get
+                {
+                    return LibInput.DeviceGetSeat(Device);
+                }
+            }
+
+            public string LogicalSeatName
+            {
+                get
+                {
+                    logical_seat = logical_seat ?? LibInput.SeatGetLogicalName(Seat);
+                    return logical_seat;
+                }
+            }
+
+            public string PhysicalSeatName
+            {
+                get
+                {
+                    physical_seat = physical_seat ?? LibInput.SeatGetPhysicalName(Seat);
+                    return physical_seat;
+                }
+            }
+
+            public string Output
+            {
+                get
+                {
+                    output = output ?? LibInput.DeviceGetOutputName(Device);
+                    return output;
+                }
+            }
+        }
+
+        class KeyboardDevice : DeviceBase
+        {
+            public KeyboardState State;
+
+            public KeyboardDevice(IntPtr device, int id)
+                : base(device, id)
+            {
+            }
+        }
+
+        class MouseDevice : DeviceBase
+        {
+            public MouseState State;
+
+            public MouseDevice(IntPtr device, int id)
+                : base(device, id)
+            {
+            }
+        }
+
+        static readonly object Sync = new object();
+        static readonly Key[] KeyMap = Evdev.KeyMap;
+        static long DeviceFDCount;
+
+        // libinput returns various devices with keyboard/pointer even though
+        // they are not traditional keyboards/mice (for example "Integrated Camera"
+        // can be detected as a keyboard.)
+        // Since there is no API to retrieve actual device capabilities,
+        // we add all detected devices to a "candidate" list and promote them
+        // to an actual keyboard/mouse only when we receive a valid input event.
+        // This is far from optimal, but it appears to be the only viable solution
+        // unless a new API is added to libinput.
+        DeviceCollection<KeyboardDevice> KeyboardCandidates = new DeviceCollection<KeyboardDevice>();
+        DeviceCollection<MouseDevice> MouseCandidates = new DeviceCollection<MouseDevice>();
+        DeviceCollection<KeyboardDevice> Keyboards = new DeviceCollection<KeyboardDevice>();
+        DeviceCollection<MouseDevice> Mice = new DeviceCollection<MouseDevice>();
+
+        // Todo: do we need to maintain the geometry of each display separately?
+        Rectangle bounds;
+
+        // Global mouse cursor state
+        Vector2 CursorPosition = Vector2.Zero;
+        // Global mouse cursor offset (used for emulating SetPosition)
+        Vector2 CursorOffset = Vector2.Zero;
+
+        IntPtr udev;
+        IntPtr input_context;
+        InputInterface input_interface = new InputInterface(
+            OpenRestricted, CloseRestricted);
+        int fd;
+        Thread input_thread;
+        long exit;
+
+        public LinuxInput()
+        {
+            Debug.Print("[Linux] Initializing {0}", GetType().Name);
+            Debug.Indent();
+            try
+            {
+                Semaphore ready = new Semaphore(0, 1);
+                input_thread = new Thread(InputThreadLoop);
+                input_thread.IsBackground = true;
+                input_thread.Start(ready);
+
+                // Wait until the input thread is ready.
+                // Note: it would be nicer if we could avoid this.
+                // however we need to marshal errors back to the caller
+                // as exceptions.
+                // Todo: in a future version, we should add an "Application" object
+                // to handle all communication with the OS (including event processing.)
+                // Once we do that, we can remove all separate input threads.
+                ready.WaitOne();
+                if (exit != 0)
+                {
+                    throw new NotSupportedException();
+                }
+            }
+            finally
+            {
+                Debug.Print("Initialization {0}", exit == 0 ?
+                    "complete" : "failed");
+                Debug.Unindent();
+            }
+        }
+
+        #region Private Members
+
+        static CloseRestrictedCallback CloseRestricted = CloseRestrictedHandler;
+        static void CloseRestrictedHandler(int fd, IntPtr data)
+        {
+            Debug.Print("[Input] Closing fd {0}", fd);
+            int ret = Libc.close(fd);
+
+            if (ret < 0)
+            {
+                Debug.Print("[Input] Failed to close fd {0}. Error: {1}", fd, ret);
+            }
+            else
+            {
+                Interlocked.Decrement(ref DeviceFDCount);
+            }
+        }
+
+        static OpenRestrictedCallback OpenRestricted = OpenRestrictedHandler;
+        static int OpenRestrictedHandler(IntPtr path, int flags, IntPtr data) 
+        {
+            int fd = Libc.open(path, (OpenFlags)flags);
+            Debug.Print("[Input] Opening '{0}' with flags {1}. fd:{2}",
+                Marshal.PtrToStringAnsi(path), (OpenFlags)flags, fd);
+
+            if (fd >= 0)
+            {
+                Interlocked.Increment(ref DeviceFDCount);
+            }
+
+            return fd;
+        }
+
+        void InputThreadLoop(object semaphore)
+        {
+            Debug.Print("[Input] Running on thread {0}", Thread.CurrentThread.ManagedThreadId);
+            Setup();
+
+            // Inform the parent thread that initialization has completed successfully
+            (semaphore as Semaphore).Release();
+            Debug.Print("[Input] Released main thread.", input_context);
+
+            // Use a blocking poll for input messages, in order to reduce CPU usage
+            PollFD poll_fd = new PollFD();
+            poll_fd.fd = fd;
+            poll_fd.events = PollFlags.In;
+            Debug.Print("[Input] Created PollFD({0}, {1})", poll_fd.fd, poll_fd.events);
+
+            Debug.Print("[Input] Entering input loop.", poll_fd.fd, poll_fd.events);
+            while (Interlocked.Read(ref exit) == 0)
+            {
+                int ret = Libc.poll(ref poll_fd, 1, -1);
+                ErrorNumber error = (ErrorNumber)Marshal.GetLastWin32Error();
+                bool is_error =
+                    ret < 0 && !(error == ErrorNumber.Again || error == ErrorNumber.Interrupted) ||
+                    (poll_fd.revents & (PollFlags.Hup | PollFlags.Error | PollFlags.Invalid)) != 0;
+
+                // We need to query the desktop bounds in order to position the mouse cursor correctly.
+                // This value will be used for the current bunch of input events. If a monitor changes
+                // resolution in the meantime, we might be slightly off in our calculations - this error
+                // will be corrected when the next bunch of input events arrives.
+                UpdateDisplayBounds();
+
+                if (ret > 0 && (poll_fd.revents & (PollFlags.In | PollFlags.Pri)) != 0)
+                {
+                    ProcessEvents(input_context);
+                }
+
+                if (is_error)
+                {
+                    Debug.Print("[Input] Exiting input loop {0} due to poll error [ret:{1} events:{2}]. Error: {3}.",
+                        input_thread.ManagedThreadId, ret, poll_fd.revents, error);
+                    Interlocked.Increment(ref exit);
+                }
+            }
+            Debug.Print("[Input] Exited input loop.", poll_fd.fd, poll_fd.events);
+        }
+
+        void UpdateDisplayBounds()
+        {
+            bounds = Rectangle.Empty;
+            for (DisplayIndex i = DisplayIndex.First; i < DisplayIndex.Sixth; i++)
+            {
+                DisplayDevice display = DisplayDevice.GetDisplay(i);
+                if (display != null)
+                {
+                    bounds = Rectangle.Union(bounds, display.Bounds);
+                }
+            }
+        }
+
+        void UpdateCursor()
+        {
+            Point p = new Point(
+                (int)Math.Round(CursorPosition.X + CursorOffset.X),
+                (int)Math.Round(CursorPosition.Y + CursorOffset.Y));
+
+            DisplayDevice display = DisplayDevice.FromPoint(p.X, p.Y) ?? DisplayDevice.Default;
+            if (display != null)
+            {
+                LinuxDisplay d = (LinuxDisplay)display.Id;
+                Drm.MoveCursor(d.FD, d.Id, p.X, p.Y);
+            }
+        }
+
+        void Setup()
+        {
+            // Todo: add static path fallback when udev is not installed.
+            udev = Udev.New();
+            if (udev == IntPtr.Zero)
+            {
+                Debug.Print("[Input] Udev.New() failed.");
+                Interlocked.Increment(ref exit);
+                return;
+            }
+            Debug.Print("[Input] Udev.New() = {0:x}", udev);
+
+            input_context = LibInput.CreateContext(input_interface, IntPtr.Zero, udev, "seat0");
+            if (input_context == IntPtr.Zero)
+            {
+                Debug.Print("[Input] LibInput.CreateContext({0:x}) failed.", udev);
+                Interlocked.Increment(ref exit);
+                return;
+            }
+            Debug.Print("[Input] LibInput.CreateContext({0:x}) = {1:x}", udev, input_context);
+
+            fd = LibInput.GetFD(input_context);
+            if (fd < 0)
+            {
+                Debug.Print("[Input] LibInput.GetFD({0:x}) failed.", input_context);
+                Interlocked.Increment(ref exit);
+                return;
+            }
+            Debug.Print("[Input] LibInput.GetFD({0:x}) = {1}.", input_context, fd);
+
+            ProcessEvents(input_context);
+            LibInput.Resume(input_context);
+            Debug.Print("[Input] LibInput.Resume({0:x})", input_context);
+
+            if (Interlocked.Read(ref DeviceFDCount) <= 0)
+            {
+                Debug.Print("[Error] Failed to open any input devices.");
+                Debug.Print("[Error] Ensure that you have access to '/dev/input/event*'.");
+                Interlocked.Increment(ref exit);
+            }
+        }
+
+        void ProcessEvents(IntPtr input_context)
+        {
+            // Process all events in the event queue
+            while (true)
+            {
+                // Data available
+                int ret = LibInput.Dispatch(input_context);
+                if (ret != 0)
+                {
+                    Debug.Print("[Input] LibInput.Dispatch({0:x}) failed. Error: {1}",
+                        input_context, ret);
+                    break;
+                }
+
+                IntPtr pevent = LibInput.GetEvent(input_context);
+                if (pevent == IntPtr.Zero)
+                {
+                    break;
+                }
+
+                IntPtr device = LibInput.GetDevice(pevent);
+                InputEventType type = LibInput.GetEventType(pevent);
+
+                lock (Sync)
+                {
+                    switch (type)
+                    {
+                        case InputEventType.DeviceAdded:
+                            HandleDeviceAdded(input_context, device);
+                            break;
+
+                        case InputEventType.DeviceRemoved:
+                            HandleDeviceRemoved(input_context, device);
+                            break;
+
+                        case InputEventType.KeyboardKey:
+                            HandleKeyboard(GetKeyboard(device), LibInput.GetKeyboardEvent(pevent));
+                            break;
+
+                        case InputEventType.PointerAxis:
+                            HandlePointerAxis(GetMouse(device), LibInput.GetPointerEvent(pevent));
+                            break;
+
+                        case InputEventType.PointerButton:
+                            HandlePointerButton(GetMouse(device), LibInput.GetPointerEvent(pevent));
+                            break;
+
+                        case InputEventType.PointerMotion:
+                            HandlePointerMotion(GetMouse(device), LibInput.GetPointerEvent(pevent));
+                            break;
+
+                        case InputEventType.PointerMotionAbsolute:
+                            HandlePointerMotionAbsolute(GetMouse(device), LibInput.GetPointerEvent(pevent));
+                            break;
+                    }
+                }
+
+                LibInput.DestroyEvent(pevent);
+            }
+        }
+
+        void HandleDeviceAdded(IntPtr context, IntPtr device)
+        {
+            if (LibInput.DeviceHasCapability(device, DeviceCapability.Keyboard))
+            {
+                KeyboardDevice keyboard = new KeyboardDevice(device, Keyboards.Count);
+                KeyboardCandidates.Add(keyboard.Id, keyboard);
+                Debug.Print("[Input] Added keyboard device {0} '{1}' on '{2}' ('{3}')",
+                    keyboard.Id, keyboard.Name, keyboard.LogicalSeatName, keyboard.PhysicalSeatName);
+            }
+
+            if (LibInput.DeviceHasCapability(device, DeviceCapability.Mouse))
+            {
+                MouseDevice mouse = new MouseDevice(device, Mice.Count);
+                MouseCandidates.Add(mouse.Id, mouse);
+                Debug.Print("[Input] Added mouse device {0} '{1}' on '{2}' ('{3}')",
+                    mouse.Id, mouse.Name, mouse.LogicalSeatName, mouse.PhysicalSeatName);
+            }
+
+            if (LibInput.DeviceHasCapability(device, DeviceCapability.Touch))
+            {
+                Debug.Print("[Input] Todo: touch device.");
+            }
+        }
+
+        void HandleDeviceRemoved(IntPtr context, IntPtr device)
+        {
+            if (LibInput.DeviceHasCapability(device, DeviceCapability.Keyboard))
+            {
+                int id = GetId(device);
+                Keyboards.TryRemove(id);
+                KeyboardCandidates.TryRemove(id);
+            }
+
+            if (LibInput.DeviceHasCapability(device, DeviceCapability.Mouse))
+            {
+                int id = GetId(device);
+                Mice.TryRemove(id);
+                MouseCandidates.TryRemove(id);
+            }
+        }
+
+        void HandleKeyboard(KeyboardDevice device, KeyboardEvent e)
+        {
+            if (device != null)
+            {
+                device.State.SetIsConnected(true);
+                Debug.Print("[Input] Added keyboard {0}", device.Id);
+
+                Key key = Key.Unknown;
+                uint raw = e.Key;
+                if (raw >= 0 && raw < KeyMap.Length)
+                {
+                    key = KeyMap[raw];
+                }
+
+                if (key == Key.Unknown)
+                {
+                    Debug.Print("[Linux] Unknown key with code '{0}'", raw);
+                }
+
+                device.State.SetKeyState(key, e.KeyState == KeyState.Pressed);
+            }
+        }
+
+        void HandlePointerAxis(MouseDevice mouse, PointerEvent e)
+        {
+            if (mouse != null)
+            {
+                mouse.State.SetIsConnected(true);
+
+                double value = e.AxisValue;
+                PointerAxis axis = e.Axis;
+                switch (axis)
+                {
+                    case PointerAxis.HorizontalScroll:
+                        mouse.State.SetScrollRelative((float)value, 0);
+                        break;
+
+                    case PointerAxis.VerticalScroll:
+                        mouse.State.SetScrollRelative(0, (float)value);
+                        break;
+
+                    default:
+                        Debug.Print("[Input] Unknown scroll axis {0}.", axis);
+                        break;
+                }
+            }
+        }
+
+        void HandlePointerButton(MouseDevice mouse, PointerEvent e)
+        {
+            if (mouse != null)
+            {
+                mouse.State.SetIsConnected(true);
+
+                MouseButton button = Evdev.GetMouseButton(e.Button);
+                ButtonState state = e.ButtonState;
+                mouse.State[(MouseButton)button] = state == ButtonState.Pressed;
+            }
+        }
+
+        void HandlePointerMotion(MouseDevice mouse, PointerEvent e)
+        {
+            Vector2 delta = new Vector2((float)e.X, (float)e.Y);
+            if (mouse != null)
+            {
+                mouse.State.SetIsConnected(true);
+                mouse.State.Position += delta;
+            }
+
+            CursorPosition = new Vector2(
+                MathHelper.Clamp(CursorPosition.X + delta.X, bounds.Left, bounds.Right - 1),
+                MathHelper.Clamp(CursorPosition.Y + delta.Y, bounds.Top, bounds.Bottom - 1));
+            UpdateCursor();
+        }
+
+        void HandlePointerMotionAbsolute(MouseDevice mouse, PointerEvent e)
+        {
+            if (mouse != null)
+            {
+                mouse.State.SetIsConnected(true);
+                mouse.State.Position = new Vector2(e.X, e.Y);
+            }
+
+            CursorPosition = new Vector2(
+                e.TransformedX(bounds.Width),
+                e.TransformedY(bounds.Height));
+            UpdateCursor();
+        }
+
+        static int GetId(IntPtr device)
+        {
+            return LibInput.DeviceGetData(device).ToInt32();
+        }
+
+        KeyboardDevice GetKeyboard(IntPtr device)
+        {
+            int id = GetId(device);
+            KeyboardDevice keyboard = KeyboardCandidates.FromHardwareId(id);
+            if (keyboard != null)
+            {
+                Keyboards.Add(id, keyboard);
+            }
+            else
+            {
+                Debug.Print("[Input] Keyboard {0} does not exist in device list.", id);
+            }
+            return keyboard;
+        }
+
+        MouseDevice GetMouse(IntPtr device)
+        {
+            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
+    }
+}
+

Source/OpenTK/Platform/Linux/LinuxJoystick.cs

@@ -33,9 +33,9 @@ using System.Runtime.InteropServices;
 using System.Text;
 using OpenTK.Input;
 
-namespace OpenTK.Platform.X11
+namespace OpenTK.Platform.Linux
 {
-    struct X11JoyDetails
+    struct LinuxJoyDetails
     {
         public Guid Guid;
         public int FileDescriptor;
@@ -43,7 +43,7 @@ namespace OpenTK.Platform.X11
     }
 
     // Note: despite what the name says, this class is Linux-specific.
-    sealed class X11Joystick : IJoystickDriver2
+    sealed class LinuxJoystick : IJoystickDriver2
     {
         #region Fields
 
@@ -52,7 +52,7 @@ namespace OpenTK.Platform.X11
         readonly FileSystemWatcher watcher = new FileSystemWatcher();
 
         readonly Dictionary<int, int> index_to_stick = new Dictionary<int, int>();
-        List<JoystickDevice<X11JoyDetails>> sticks = new List<JoystickDevice<X11JoyDetails>>();
+        List<JoystickDevice<LinuxJoyDetails>> sticks = new List<JoystickDevice<LinuxJoyDetails>>();
 
         bool disposed;
 
@@ -60,7 +60,7 @@ namespace OpenTK.Platform.X11
 
         #region Constructors
 
-        public X11Joystick()
+        public LinuxJoystick()
         {
             string path =
                 Directory.Exists(JoystickPath) ? JoystickPath :
@@ -89,7 +89,7 @@ namespace OpenTK.Platform.X11
             {
                 foreach (string file in Directory.GetFiles(path))
                 {
-                    JoystickDevice<X11JoyDetails> stick = OpenJoystick(file);
+                    JoystickDevice<LinuxJoyDetails> stick = OpenJoystick(file);
                     if (stick != null)
                     {
                         //stick.Description = String.Format("USB Joystick {0} ({1} axes, {2} buttons, {3}{0})",
@@ -155,7 +155,7 @@ namespace OpenTK.Platform.X11
 
         #region Private Members
 
-        Guid CreateGuid(JoystickDevice<X11JoyDetails> js, string path, int number)
+        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++)
@@ -221,9 +221,9 @@ namespace OpenTK.Platform.X11
 #endif
         }
         
-        JoystickDevice<X11JoyDetails> OpenJoystick(string path)
+        JoystickDevice<LinuxJoyDetails> OpenJoystick(string path)
         {
-            JoystickDevice<X11JoyDetails> stick = null;
+            JoystickDevice<LinuxJoyDetails> stick = null;
 
             int number = GetJoystickNumber(Path.GetFileName(path));
             if (number >= 0)
@@ -231,28 +231,28 @@ namespace OpenTK.Platform.X11
                 int fd = -1;
                 try
                 {
-                    fd = UnsafeNativeMethods.open(path, OpenFlags.NonBlock);
+                    fd = Libc.open(path, OpenFlags.NonBlock);
                     if (fd == -1)
                         return null;
 
                     // Check joystick driver version (must be 1.0+)
                     int driver_version = 0x00000800;
-                    UnsafeNativeMethods.ioctl(fd, JoystickIoctlCode.Version, ref driver_version);
+                    Libc.ioctl(fd, JoystickIoctlCode.Version, ref driver_version);
                     if (driver_version < 0x00010000)
                         return null;
 
                     // Get number of joystick axes
                     int axes = 0;
-                    UnsafeNativeMethods.ioctl(fd, JoystickIoctlCode.Axes, ref axes);
+                    Libc.ioctl(fd, JoystickIoctlCode.Axes, ref axes);
 
                     // Get number of joystick buttons
                     int buttons = 0;
-                    UnsafeNativeMethods.ioctl(fd, JoystickIoctlCode.Buttons, ref buttons);
+                    Libc.ioctl(fd, JoystickIoctlCode.Buttons, ref buttons);
 
-                    stick = new JoystickDevice<X11JoyDetails>(number, axes, buttons);
+                    stick = new JoystickDevice<LinuxJoyDetails>(number, axes, buttons);
 
                     StringBuilder sb = new StringBuilder(128);
-                    UnsafeNativeMethods.ioctl(fd, JoystickIoctlCode.Name128, sb);
+                    Libc.ioctl(fd, JoystickIoctlCode.Name128, sb);
                     stick.Description = sb.ToString();
 
                     stick.Details.FileDescriptor = fd;
@@ -287,16 +287,16 @@ namespace OpenTK.Platform.X11
                 finally
                 {
                     if (stick == null && fd != -1)
-                        UnsafeNativeMethods.close(fd);
+                        Libc.close(fd);
                 }
             }
 
             return stick;
         }
 
-        void CloseJoystick(JoystickDevice<X11JoyDetails> js)
+        void CloseJoystick(JoystickDevice<LinuxJoyDetails> js)
         {
-            UnsafeNativeMethods.close(js.Details.FileDescriptor);
+            Libc.close(js.Details.FileDescriptor);
             js.Details.State = new JoystickState(); // clear joystick state
             js.Details.FileDescriptor = -1;
             
@@ -317,13 +317,13 @@ namespace OpenTK.Platform.X11
             }
         }
 
-        void PollJoystick(JoystickDevice<X11JoyDetails> js)
+        void PollJoystick(JoystickDevice<LinuxJoyDetails> js)
         {
             JoystickEvent e;
 
             unsafe
             {
-                while ((long)UnsafeNativeMethods.read(js.Details.FileDescriptor, (void*)&e, (UIntPtr)sizeof(JoystickEvent)) > 0)
+                while ((long)Libc.read(js.Details.FileDescriptor, (void*)&e, (UIntPtr)sizeof(JoystickEvent)) > 0)
                 {
                     e.Type &= ~JoystickEventType.Init;
 
@@ -352,78 +352,9 @@ namespace OpenTK.Platform.X11
             return index_to_stick.ContainsKey(index);
         }
 
-        #region UnsafeNativeMethods
-
-        struct EvdevInputId
-        {
-            public ushort BusType;
-            public ushort Vendor;
-            public ushort Product;
-            public ushort Version;
-        }
-
-        enum EvdevIoctlCode : uint
-        {
-            Id = ((byte)'E' << 8) | (0x02 << 0) //EVIOCGID, which is _IOR('E', 0x02, struct input_id)
-        }
- 
-
-        struct JoystickEvent
-        {
-            public uint Time;    // (u32) event timestamp in milliseconds
-            public short Value;  // (s16) value
-            public JoystickEventType Type;    // (u8)  event type
-            public byte Number;  // (u8)  axis/button number
-        }
-
-        [Flags]
-        enum JoystickEventType : byte
-        {
-            Button = 0x01,    // button pressed/released
-            Axis = 0x02,      // joystick moved
-            Init = 0x80       // initial state of device
-        }
-
-        enum JoystickIoctlCode : uint
-        {
-            Version = 0x80046a01,
-            Axes = 0x80016a11,
-            Buttons = 0x80016a12,
-            Name128 = (2u << 30) | (0x6A << 8) | (0x13 << 0) | (128 << 16) //JSIOCGNAME(128), which is _IOC(_IO_READ, 'j', 0x13, len)
-        }
-
         static readonly string JoystickPath = "/dev/input";
         static readonly string JoystickPathLegacy = "/dev";
 
-        [Flags]
-        enum OpenFlags
-        {
-            NonBlock = 0x00000800
-        }
-
-        static class UnsafeNativeMethods
-        {
-            [DllImport("libc", SetLastError = true)]
-            public static extern int ioctl(int d, JoystickIoctlCode request, ref int data);
-
-            [DllImport("libc", SetLastError = true)]
-            public static extern int ioctl(int d, JoystickIoctlCode request, StringBuilder data);
-
-            [DllImport("libc", SetLastError = true)]
-            public static extern int ioctl(int d, EvdevIoctlCode request, out EvdevInputId data);
-
-            [DllImport("libc", SetLastError = true)]
-            public static extern int open([MarshalAs(UnmanagedType.LPStr)]string pathname, OpenFlags flags);
-
-            [DllImport("libc", SetLastError = true)]
-            public static extern int close(int fd);
-
-            [DllImport("libc", SetLastError = true)]
-            unsafe public static extern IntPtr read(int fd, void* buffer, UIntPtr count);
-        }
-
-        #endregion
-
         #endregion
 
         #region IDisposable Members
@@ -443,7 +374,7 @@ namespace OpenTK.Platform.X11
                 }
 
                 watcher.Dispose();
-                foreach (JoystickDevice<X11JoyDetails> js in sticks)
+                foreach (JoystickDevice<LinuxJoyDetails> js in sticks)
                 {
                     CloseJoystick(js);
                 }
@@ -452,7 +383,7 @@ namespace OpenTK.Platform.X11
             }
         }
 
-        ~X11Joystick()
+        ~LinuxJoystick()
         {
             Dispose(false);
         }
@@ -465,7 +396,7 @@ namespace OpenTK.Platform.X11
         {
             if (IsValid(index))
             {
-                JoystickDevice<X11JoyDetails> js = 
+                JoystickDevice<LinuxJoyDetails> js = 
                     sticks[index_to_stick[index]];
                 PollJoystick(js);
                 return js.Details.State;
@@ -478,7 +409,7 @@ namespace OpenTK.Platform.X11
             JoystickCapabilities caps = new JoystickCapabilities();
             if (IsValid(index))
             {
-                JoystickDevice<X11JoyDetails> js = sticks[index_to_stick[index]];
+                JoystickDevice<LinuxJoyDetails> js = sticks[index_to_stick[index]];
                 caps = new JoystickCapabilities(
                     js.Axis.Count,
                     js.Button.Count,
@@ -492,7 +423,7 @@ namespace OpenTK.Platform.X11
         {
             if (IsValid(index))
             {
-                JoystickDevice<X11JoyDetails> js = sticks[index_to_stick[index]];
+                JoystickDevice<LinuxJoyDetails> js = sticks[index_to_stick[index]];
                 return js.Details.Guid; 
             }
             return new Guid();

Source/OpenTK/Platform/Linux/LinuxKeyboardTTY.cs

@@ -0,0 +1,268 @@
+#region License
+//
+// LinuxKeyboardTTY.cs
+//
+// Author:
+//       thefiddler <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 
+//
+// 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.Diagnostics;
+using System.IO;
+using System.Threading;
+using OpenTK.Input;
+
+namespace OpenTK.Platform.Linux
+{
+    // Todo: this has terrible side-effects on process exit
+    // (the keyboard remains tied up.) We need to find a
+    // proper way to clean up after ourselves, even in case
+    // of a crash.
+    #if EXPERIMENTAL
+    class LinuxKeyboardTTY : IKeyboardDriver2, IDisposable
+    {
+        const int stdin = 0; // STDIN_FILENO
+        readonly object sync = new object();
+        Thread input_thread;
+        long exit;
+        KeyboardState state;
+
+        TerminalState original_state;
+        TerminalState current_state;
+
+        IntPtr original_mode = new IntPtr(-1);
+        int original_stdin;
+
+        public LinuxKeyboardTTY()
+        {
+            Debug.Print("[Linux] Using TTY keyboard input.");
+
+            if (!SetupTTY(stdin))
+            {
+                throw new NotSupportedException();
+            }
+
+            input_thread = new Thread(ProcessEvents);
+            input_thread.IsBackground = true;
+            input_thread.Start();
+        }
+
+        #region Private Members
+
+        bool SetupTTY(int stdin)
+        {
+            // Ensure that we are using a real terminal,
+            // rather than some short of file redirection.thing.
+            if (!Terminal.IsTerminal(stdin))
+            {
+                Debug.Print("[Linux] Terminal.IsTerminal({0}) returned false.", stdin);
+                return false;
+            }
+
+            //original_stdin = Libc.dup(stdin);
+
+            int ret = Terminal.GetAttributes(stdin, out original_state);
+            if (ret < 0)
+            {
+                Debug.Print("[Linux] Terminal.GetAttributes({0}) failed. Error: {1}",
+                    stdin, ret);
+                return false;
+            }
+
+            // Retrieve current keyboard mode
+            ret = Libc.ioctl(stdin, KeyboardIoctlCode.GetMode, ref original_mode);
+            if (ret != 0)
+            {
+                Debug.Print("[Linux] Libc.ioctl({0}, KeyboardIoctlCode.GetMode) failed. Error: {1}",
+                    stdin, ret);
+                return false;
+            }
+
+            // Update terminal state
+            current_state = original_state;
+            current_state.LocalMode &= ~(/*LocalFlags.ECHO |*/ LocalFlags.ICANON | LocalFlags.ISIG);
+            current_state.InputMode &= ~(
+                InputFlags.ISTRIP | InputFlags.IGNCR | InputFlags.ICRNL |
+                InputFlags.INLCR | InputFlags.IXOFF | InputFlags.IXON);
+            current_state.ControlCharacters.VMIN = 0;
+            current_state.ControlCharacters.VTIME = 0;
+            Terminal.SetAttributes(stdin, OptionalActions.FLUSH, ref current_state);
+
+            // Request keycodes
+            int mode = 0x02; // K_MEDIUMRAW
+            ret = Libc.ioctl(stdin, KeyboardIoctlCode.SetMode, mode);
+            if (ret != 0)
+            {
+                Debug.Print("[Linux] Libc.ioctl({0}, KeyboardIoctlCode.SetMode, {1}) failed. Error: {2}",
+                    stdin, mode, ret);
+                ExitTTY(this, EventArgs.Empty);
+                return false;
+            }
+
+            // Ensure we reset the original keyboard/terminal state on exit,
+            // even if we crash.
+            HookEvents();
+
+            return true;
+        }
+
+        void ExitTTY(object sender, EventArgs e)
+        {
+            if (original_mode != new IntPtr(-1))
+            {
+                Debug.Print("[Linux] Exiting TTY keyboard input.");
+
+                Libc.ioctl(stdin, KeyboardIoctlCode.SetMode, ref original_mode);
+                Terminal.SetAttributes(stdin, OptionalActions.FLUSH, ref original_state);
+                original_mode = new IntPtr(-1);
+
+                UnhookEvents();
+            }
+        }
+
+        void HookEvents()
+        {
+            Process.GetCurrentProcess().Exited += ExitTTY;
+            Console.CancelKeyPress += ExitTTY;
+        }
+
+        void UnhookEvents()
+        {
+            Process.GetCurrentProcess().Exited -= ExitTTY;
+            Console.CancelKeyPress -= ExitTTY;
+        }
+
+        void ProcessEvents()
+        {
+            state.SetIsConnected(true);
+
+            while (Interlocked.Read(ref exit) == 0)
+            {
+                byte scancode;
+                short extended;
+
+                while (Libc.read(stdin, out scancode) > 0)
+                {
+                    bool pressed = (scancode & 0x80) == 0;
+                    int key = scancode & ~0x80;
+                    KeyModifiers mods;
+                    Debug.Print("{0}:{1} is {2}", key, (int)TranslateKey(key, out mods), pressed);
+
+                    if (key == 0)
+                    {
+                        // This is an extended scancode, ignore
+                        Libc.read(stdin, out extended);
+                    }
+                    else
+                    {
+                        lock (sync)
+                        {
+                            state[(Key)key] = pressed;
+                        }
+                    }
+
+                }
+            }
+
+            input_thread = null;
+        }
+
+        Key TranslateKey(int key, out KeyModifiers mods)
+        {
+            int k = MathHelper.Clamp((int)key, 0, KeyMap.Length);
+            Key result = KeyMap[k];
+            mods = 0;
+            mods |= (result == Key.AltLeft || result == Key.AltRight) ? KeyModifiers.Alt : 0;
+            mods |= (result == Key.ControlLeft || result == Key.ControlRight) ? KeyModifiers.Control : 0;
+            mods |= (result == Key.ShiftLeft || result == Key.ShiftRight) ? KeyModifiers.Shift : 0;
+            return KeyMap[k];
+        }
+
+        static readonly Key[] KeyMap = Evdev.KeyMap;
+
+        #endregion
+
+        #region IKeyboardDriver2 implementation
+
+        public KeyboardState GetState()
+        {
+            lock (this)
+            {
+                return state;
+            }
+        }
+
+        public KeyboardState GetState(int index)
+        {
+            lock (this)
+            {
+                if (index == 0)
+                    return state;
+                else
+                    return new KeyboardState();
+            }
+        }
+
+        public string GetDeviceName(int index)
+        {
+            if (index == 0)
+                return "Standard Input";
+            else
+                return String.Empty;
+        }
+
+        #endregion
+
+        #region IDisposable Implementation
+
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+
+        void Dispose(bool disposing)
+        {
+            Interlocked.Increment(ref exit);
+
+            if (disposing)
+            {
+                ExitTTY(this, EventArgs.Empty);
+            }
+            else
+            {
+                Debug.Print("{0} leaked, did you forget to call Dispose()?", typeof(LinuxKeyboardTTY).FullName);
+            }
+        }
+
+        ~LinuxKeyboardTTY()
+        {
+            Dispose(false);
+        }
+
+        #endregion
+    }
+    #endif
+}
+

Source/OpenTK/Platform/Linux/LinuxNativeWindow.cs

@@ -0,0 +1,549 @@
+#region License
+//
+// LinuxNativeWindow.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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.Diagnostics;
+using System.Drawing;
+using System.Runtime.InteropServices;
+using OpenTK.Graphics;
+using OpenTK.Input;
+using OpenTK.Platform.Egl;
+
+namespace OpenTK.Platform.Linux
+{
+    using Egl = OpenTK.Platform.Egl.Egl;
+
+    class LinuxNativeWindow : NativeWindowBase
+    {
+        LinuxWindowInfo window;
+        string title;
+        Icon icon;
+        Rectangle bounds;
+        Size client_size;
+        bool exists;
+        bool is_focused;
+        bool is_cursor_visible = true;
+
+        KeyboardState previous_keyboard;
+        MouseState previous_mouse;
+
+        MouseCursor cursor_current;
+        BufferObject cursor_custom;
+        BufferObject cursor_default;
+        BufferObject cursor_empty;
+
+        IntPtr gbm_surface;
+
+        public LinuxNativeWindow(IntPtr display, IntPtr gbm, int fd,
+            int x, int y, int width, int height, string title,
+            GraphicsMode mode, GameWindowFlags options,
+            DisplayDevice display_device)
+        {
+            Debug.Print("[KMS] Creating window on display {0:x}", display);
+
+            Title = title;
+
+            display_device = display_device ?? DisplayDevice.Default;
+            if (display_device == null)
+            {
+                throw new NotSupportedException("[KMS] Driver does not currently support headless systems");
+            }
+
+            window = new LinuxWindowInfo(display, fd, gbm, display_device.Id as LinuxDisplay);
+
+            // Note: we only support fullscreen windows on KMS.
+            // We implicitly override the requested width and height
+            // by the width and height of the DisplayDevice, if any.
+            width = display_device.Width;
+            height = display_device.Height;
+            bounds = new Rectangle(0, 0, width, height);
+            client_size = bounds.Size;
+
+            if (!mode.Index.HasValue)
+            {
+                mode = new EglGraphicsMode().SelectGraphicsMode(window, mode, 0);
+            }
+            Debug.Print("[KMS] Selected EGL mode {0}", mode);
+
+            SurfaceFormat format = GetSurfaceFormat(display, mode);
+            SurfaceFlags usage = SurfaceFlags.Rendering | SurfaceFlags.Scanout;
+            if (!Gbm.IsFormatSupported(gbm, format, usage))
+            {
+                Debug.Print("[KMS] Failed to find suitable surface format, using XRGB8888");
+                format = SurfaceFormat.XRGB8888;
+            }
+
+            Debug.Print("[KMS] Creating GBM surface on {0:x} with {1}x{2} {3} [{4}]",
+                gbm, width, height, format, usage);
+            IntPtr gbm_surface =  Gbm.CreateSurface(gbm,
+                    width, height, format, usage);
+            if (gbm_surface == IntPtr.Zero)
+            {
+                throw new NotSupportedException("[KMS] Failed to create GBM surface for rendering");
+            }
+
+            window.Handle = gbm_surface;
+                Debug.Print("[KMS] Created GBM surface {0:x}", window.Handle);
+
+            window.CreateWindowSurface(mode.Index.Value);
+            Debug.Print("[KMS] Created EGL surface {0:x}", window.Surface);
+
+            cursor_default = CreateCursor(gbm, Cursors.Default);
+            cursor_empty = CreateCursor(gbm, Cursors.Empty);
+            Cursor = MouseCursor.Default;
+            exists = true;
+        }
+
+        #region Private Members
+
+        static BufferObject CreateCursor(IntPtr gbm, MouseCursor cursor)
+        {
+            if (cursor.Width > 64 || cursor.Height > 64)
+            {
+                Debug.Print("[KMS] Cursor size {0}x{1} unsupported. Maximum is 64x64.",
+                    cursor.Width, cursor.Height);
+                return default(BufferObject);
+            }
+
+            int width = 64;
+            int height = 64;
+            SurfaceFormat format = SurfaceFormat.ARGB8888;
+            SurfaceFlags usage = SurfaceFlags.Cursor64x64 | SurfaceFlags.Write;
+
+            Debug.Print("[KMS] Gbm.CreateBuffer({0:X}, {1}, {2}, {3}, {4}).",
+                gbm, width, height, format, usage);
+
+            BufferObject bo = Gbm.CreateBuffer(
+                gbm, width, height, format, usage);
+
+            if (bo == BufferObject.Zero)
+            {
+                Debug.Print("[KMS] Failed to create buffer.");
+                return bo;
+            }
+
+            // Copy cursor.Data into a new buffer of the correct size
+            byte[] cursor_data = new byte[width * height * 4];
+            for (int y = 0; y < cursor.Height; y++)
+            {
+                int dst_offset = y * width * 4;
+                int src_offset = y * cursor.Width * 4;
+                int src_length = cursor.Width * 4;
+                Array.Copy(
+                    cursor.Data, src_offset,
+                    cursor_data, dst_offset,
+                    src_length);
+            }
+            bo.Write(cursor_data);
+
+            return bo;
+        }
+
+        void SetCursor(MouseCursor cursor)
+        {
+            BufferObject bo = default(BufferObject);
+            if (cursor == MouseCursor.Default)
+            {
+                bo = cursor_default;
+            }
+            else if (cursor == MouseCursor.Empty)
+            {
+                bo = cursor_empty;
+            }
+            else
+            {
+                if (cursor_custom != BufferObject.Zero)
+                    cursor_custom.Dispose();
+                cursor_custom = CreateCursor(window.BufferManager, cursor);
+                bo = cursor_custom;
+            }
+
+            // If we failed to create a proper cursor, try falling back
+            // to the empty cursor. We do not want to crash here!
+            if (bo == BufferObject.Zero)
+            {
+                bo = cursor_empty;
+            }
+
+            if (bo != BufferObject.Zero)
+            {
+                Drm.SetCursor(window.FD, window.DisplayDevice.Id,
+                    bo.Handle, bo.Width, bo.Height, cursor.X, cursor.Y);
+            }
+        }
+
+        static SurfaceFormat GetSurfaceFormat(IntPtr display, GraphicsMode mode)
+        {
+            // Use EGL 1.4 EGL_NATIVE_VISUAL_ID to retrieve
+            // the corresponding surface format. If that fails
+            // fall back to a manual algorithm.
+            int format;
+            Egl.GetConfigAttrib(display, mode.Index.Value,
+                Egl.NATIVE_VISUAL_ID, out format);
+            if ((SurfaceFormat)format != 0)
+                return (SurfaceFormat)format;
+
+            Debug.Print("[KMS] Failed to retrieve EGL visual from GBM surface. Error: {0}",
+                Egl.GetError());
+            Debug.Print("[KMS] Falling back to hardcoded formats.");
+
+            int r = mode.ColorFormat.Red;
+            int g = mode.ColorFormat.Green;
+            int b = mode.ColorFormat.Blue;
+            int a = mode.ColorFormat.Alpha;
+
+            if (mode.ColorFormat.IsIndexed)
+                return SurfaceFormat.C8;
+            if (r == 3 && g == 3 && b == 2 && a == 0)
+                return SurfaceFormat.RGB332;
+            if (r == 5 && g == 6 && b == 5 && a == 0)
+                return SurfaceFormat.RGB565;
+            if (r == 5 && g == 6 && b == 5 && a == 0)
+                return SurfaceFormat.RGB565;
+            if (r == 8 && g == 8 && b == 8 && a == 0)
+                return SurfaceFormat.RGB888;
+            if (r == 5 && g == 5 && b == 5 && a == 1)
+                return SurfaceFormat.RGBA5551;
+            if (r == 10 && g == 10 && b == 10 && a == 2)
+                return SurfaceFormat.RGBA1010102;
+            if (r == 4 && g == 4 && b == 4 && a == 4)
+                return SurfaceFormat.RGBA4444;
+            if (r == 8 && g == 8 && b == 8 && a == 8)
+                return SurfaceFormat.RGBA8888;
+
+            return SurfaceFormat.RGBA8888;
+        }
+
+        KeyboardState ProcessKeyboard(KeyboardState keyboard)
+        {
+            for (Key i = 0; i < Key.LastKey; i++)
+            {
+                if (keyboard[i])
+                {
+                    OnKeyDown(i, previous_keyboard[i]);
+                    // Todo: implement libxkb-common binding for text input
+                }
+
+                if (!keyboard[i] && previous_keyboard[i])
+                {
+                    OnKeyUp(i);
+                }
+            }
+            return keyboard;
+        }
+
+        MouseState ProcessMouse(MouseState mouse)
+        {
+            // Handle mouse buttons
+            for (MouseButton i = 0; i < MouseButton.LastButton; i++)
+            {
+                if (mouse[i] && !previous_mouse[i])
+                {
+                    OnMouseDown(i);
+                }
+
+                if (!mouse[i] && previous_mouse[i])
+                {
+                    OnMouseUp(i);
+                }
+            }
+
+            // Handle mouse movement
+            {
+                int x = mouse.X;
+                int y = mouse.Y;
+
+                // Make sure the mouse cannot leave the GameWindow when captured
+                if (!CursorVisible)
+                {
+                    x = MathHelper.Clamp(mouse.X, Bounds.Left, Bounds.Right - 1);
+                    y = MathHelper.Clamp(mouse.Y, Bounds.Top, Bounds.Bottom - 1);
+                    if (x != mouse.X || y != mouse.Y)
+                    {
+                        Mouse.SetPosition(x, y);
+                    }
+                }
+
+                if (x != previous_mouse.X || y != previous_mouse.Y)
+                {
+                    OnMouseMove(x, y);
+                }
+            }
+
+            // Handle mouse scroll
+            if (mouse.Scroll != previous_mouse.Scroll)
+            {
+                float dx = mouse.Scroll.X - previous_mouse.Scroll.X;
+                float dy = mouse.Scroll.Y - previous_mouse.Scroll.Y;
+                OnMouseWheel(dx, dy);
+            }
+
+            // Handle mouse focus
+            // Note: focus follows mouse. Literally.
+            bool cursor_in = Bounds.Contains(new Point(mouse.X, mouse.Y));
+            if (!cursor_in && Focused)
+            {
+                OnMouseLeave(EventArgs.Empty);
+                SetFocus(false);
+            }
+            else if (cursor_in && !Focused)
+            {
+                OnMouseEnter(EventArgs.Empty);
+                SetFocus(true);
+            }
+
+            return mouse;
+        }
+
+        void SetFocus(bool focus)
+        {
+            if (is_focused != focus)
+            {
+                is_focused = focus;
+                OnFocusedChanged(EventArgs.Empty);
+            }
+        }
+
+        #endregion
+
+        #region INativeWindow Members
+
+        public override void ProcessEvents()
+        {
+            // Note: there is no event-based keyboard/mouse input available.
+            // We will fake that by polling OpenTK.Input.
+            previous_keyboard = ProcessKeyboard(Keyboard.GetState());
+            previous_mouse = ProcessMouse(Mouse.GetCursorState());
+
+            base.ProcessEvents();
+        }
+
+        public override void Close()
+        {
+            exists = false;
+        }
+
+        public override Point PointToClient(Point point)
+        {
+            var origin = Point.Empty;
+            var display = DisplayDevice.Default;
+            if (display != null)
+            {
+                origin = display.Bounds.Location;
+            }
+            var client = Location;
+            return new Point(point.X + client.X - origin.X, point.Y + client.Y - origin.Y);
+        }
+
+        public override Point PointToScreen(Point point)
+        {
+            var origin = Point.Empty;
+            var display = DisplayDevice.Default;
+            if (display != null)
+            {
+                origin = display.Bounds.Location;
+            }
+            var client = Location;
+            return new Point(point.X + origin.X - client.X, point.Y + origin.Y - client.Y);
+
+        }
+
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                Debug.Print("[KMS] Destroying window {0}.", window.Handle);
+                window.Dispose();
+                Gbm.DestroySurface(window.Handle);
+            }
+            else
+            {
+                Debug.Print("[KMS] {0} leaked. Did you forget to call Dispose()?", GetType().FullName);
+            }
+        }
+
+        public override Icon Icon
+        {
+            get
+            {
+                return icon;
+            }
+            set
+            {
+                if (icon != value)
+                {
+                    icon = value;
+                    OnIconChanged(EventArgs.Empty);
+                }
+            }
+        }
+
+        public override string Title
+        {
+            get
+            {
+                return title;
+            }
+            set
+            {
+                if (title != value)
+                {
+                    title = value;
+                    OnTitleChanged(EventArgs.Empty);
+                }
+            }
+        }
+
+        public override bool Focused
+        {
+            get
+            {
+                return is_focused;
+            }
+        }
+
+        public override bool Visible
+        {
+            get
+            {
+                return true;
+            }
+            set
+            {
+            }
+        }
+
+        public override bool Exists
+        {
+            get
+            {
+                return exists;
+            }
+        }
+
+        public override IWindowInfo WindowInfo
+        {
+            get
+            {
+                return window;
+            }
+        }
+
+        public override WindowState WindowState
+        {
+            get
+            {
+                return WindowState.Fullscreen;
+            }
+            set
+            {
+            }
+        }
+
+        public override WindowBorder WindowBorder
+        {
+            get
+            {
+                return WindowBorder.Hidden;
+            }
+            set
+            {
+            }
+        }
+
+        public override Rectangle Bounds
+        {
+            get
+            {
+                return bounds;
+            }
+            set
+            {
+            }
+        }
+
+        public override Size ClientSize
+        {
+            get
+            {
+                return client_size;
+            }
+            set
+            {
+            }
+        }
+
+        public override bool CursorVisible
+        {
+            get
+            {
+                return is_cursor_visible;
+            }
+            set
+            {
+                if (value && !is_cursor_visible)
+                {
+                    SetCursor(cursor_current);
+                }
+                else if (!value && is_cursor_visible)
+                {
+                    SetCursor(MouseCursor.Empty);
+                }
+                is_cursor_visible = value;
+            }
+        }
+
+        public override MouseCursor Cursor
+        {
+            get
+            {
+                return cursor_current;
+            }
+            set
+            {
+                if (cursor_current != value)
+                {
+                    if (cursor_custom != BufferObject.Zero)
+                    {
+                        cursor_custom.Dispose();
+                    }
+
+                    if (CursorVisible)
+                    {
+                        SetCursor(value);
+                    }
+                    cursor_current = value;
+                }
+            }
+        }
+
+        #endregion
+    }
+}
+

Source/OpenTK/Platform/Linux/LinuxWindowInfo.cs

@@ -0,0 +1,56 @@
+#region License
+//
+// LinuxWindowInfo.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2014 Stefanos Apostolopoulos
+//
+// 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.Diagnostics;
+using OpenTK.Platform.Egl;
+
+namespace OpenTK.Platform.Linux
+{
+    class LinuxWindowInfo : EglWindowInfo
+    {
+        public int FD { get; private set; }
+        public LinuxDisplay DisplayDevice { get; private set; }
+        public IntPtr BufferManager { get; private set; }
+
+        public LinuxWindowInfo(IntPtr display, int fd, IntPtr gbm, LinuxDisplay display_device)
+            : base(IntPtr.Zero, display, IntPtr.Zero)
+        {
+            if (display_device == null)
+                throw new ArgumentNullException();
+
+            FD = fd;
+            BufferManager = gbm;
+            DisplayDevice = display_device;
+            // The window handle and surface handle must
+            // be filled in manually once they are known.
+        }
+    }
+}
+

Source/OpenTK/Platform/X11/X11Input.cs

@@ -37,7 +37,7 @@ namespace OpenTK.Platform.X11
     {
         readonly X11Mouse mouse = new X11Mouse();
         readonly X11Keyboard keyboard = new X11Keyboard();
-        readonly X11Joystick joystick = new X11Joystick();
+        readonly Linux.LinuxJoystick joystick = new Linux.LinuxJoystick();
         readonly IGamePadDriver gamepad = new MappedGamePadDriver();
 
         internal X11Input()

Source/OpenTK/Platform/X11/XI2Input.cs

@@ -36,7 +36,7 @@ namespace OpenTK.Platform.X11
     class XI2Input : IInputDriver2
     {
         readonly XI2MouseKeyboard mouse_keyboard = new XI2MouseKeyboard();
-        readonly X11Joystick joystick = new X11Joystick();
+        readonly Linux.LinuxJoystick joystick = new Linux.LinuxJoystick();
         readonly IGamePadDriver gamepad = new MappedGamePadDriver();
 
         internal XI2Input()