[Mac] Migrated AglContext to OpenTK.GLControl

Source/GLControl/Agl.cs

@@ -377,8 +377,7 @@ namespace OpenTK.Platform.MacOS
             if (retval == 0)
             {
                 AglError err = GetError();
-
+                throw new Exception(ErrorString(err));
-                throw new MacOSException(err, ErrorString(err));
             }
         }
         [DllImport(agl)] static extern byte aglSetOffScreen(AGLContext ctx, int width, int height, int rowbytes, IntPtr baseaddr);
@@ -398,7 +397,7 @@ namespace OpenTK.Platform.MacOS
                 Debug.Print(ErrorString(err));
                 Debug.Unindent();
 
-                throw new MacOSException(err, ErrorString(err));
+                throw new Exception(ErrorString(err));
             }
         }
         /*

Source/GLControl/AglContext.cs

@@ -42,28 +42,40 @@ namespace OpenTK.Platform.MacOS
     using AGLContext = IntPtr;
     using AGLPbuffer = IntPtr;
 
-    class AglContext : DesktopGraphicsContext
+    /// <summary>
+    /// AGL context implementation for WinForms compatibility.
+    /// </summary>
+    class AglContext : IGraphicsContext, IGraphicsContextInternal
     {
-        // Todo: keep track of which display adapter was specified when the context was created.
+        ContextHandle Handle;
-        // IntPtr displayID;
+        GraphicsMode mode;
+        IWindowInfo carbonWindow;
+        IGraphicsContext dummyContext; // for extension loading
+        bool disposed;
+        bool error_checking;
 
-        CarbonWindowInfo carbonWindow;
+        readonly GetInt XOffset;
-        IntPtr shareContextRef;
+        readonly GetInt YOffset;
-        bool mIsFullscreen = false;
 
-        public AglContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shareContext)
+        public AglContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shareContext,
+            GetInt xoffset, GetInt yoffset)
         {
-            Debug.Print("Context Type: {0}", shareContext);
+            Debug.Print("Share context: {0}", shareContext);
             Debug.Print("Window info: {0}", window);
+            IntPtr shareContextRef = IntPtr.Zero;
 
-            this.carbonWindow = (CarbonWindowInfo)window;
+            XOffset = xoffset;
+            YOffset = yoffset;
+
+            carbonWindow = window;
 
             if (shareContext is AglContext)
+            {
                 shareContextRef = ((AglContext)shareContext).Handle.Handle;
-            if (shareContext is GraphicsContext)
+            }
+            else if (shareContext is GraphicsContext)
             {
                 ContextHandle shareHandle = shareContext != null ? (shareContext as IGraphicsContextInternal).Context : (ContextHandle)IntPtr.Zero;
-                
                 shareContextRef = shareHandle.Handle;
             }
 
@@ -75,24 +87,13 @@ namespace OpenTK.Platform.MacOS
             CreateContext(mode, carbonWindow, shareContextRef, true);
         }
 
-        public AglContext(ContextHandle handle, IWindowInfo window, IGraphicsContext shareContext)
-        {
-            if (handle == ContextHandle.Zero)
-                throw new ArgumentException("handle");
-            if (window == null)
-                throw new ArgumentNullException("window");
-            
-            Handle = handle;
-            carbonWindow = (CarbonWindowInfo)window;
-        }
-
-
         private void AddPixelAttrib(List<int> aglAttributes, Agl.PixelFormatAttribute pixelFormatAttribute)
         {
             Debug.Print(pixelFormatAttribute.ToString());
 
             aglAttributes.Add((int)pixelFormatAttribute);
         }
+
         private void AddPixelAttrib(List<int> aglAttributes, Agl.PixelFormatAttribute pixelFormatAttribute, int value)
         {
             Debug.Print("{0} : {1}", pixelFormatAttribute, value);
@@ -101,88 +102,58 @@ namespace OpenTK.Platform.MacOS
             aglAttributes.Add(value);
         }
 
-        void CreateContext(GraphicsMode mode, CarbonWindowInfo carbonWindow, IntPtr shareContextRef, bool fullscreen)
+        void CreateContext(GraphicsMode mode, IWindowInfo carbonWindow, IntPtr shareContextRef, bool fullscreen)
         {
             Debug.Print("AGL pixel format attributes:");
 
-            AGLPixelFormat myAGLPixelFormat;
 
             // Choose a pixel format with the attributes we specified.
-            IntPtr gdevice;
+            AGLPixelFormat pixelformat;
-            IntPtr cgdevice = GetQuartzDevice(carbonWindow);
+            AglGraphicsMode selector = new AglGraphicsMode();
-                
-            if (cgdevice == IntPtr.Zero)
-                cgdevice = (IntPtr)DisplayDevice.Default.Id;
-                
-            OSStatus status = Carbon.API.DMGetGDeviceByDisplayID(cgdevice, out gdevice, false);
-                
-            if (status != OSStatus.NoError)
-                throw new MacOSException(status, "DMGetGDeviceByDisplayID failed.");
-
-            IGraphicsMode selector = new MacOSGraphicsMode(gdevice);
             Mode = selector.SelectGraphicsMode(
                 mode.ColorFormat, mode.Depth, mode.Stencil, mode.Samples,
-                mode.AccumulatorFormat, mode.Buffers, mode.Stereo);
+                mode.AccumulatorFormat, mode.Buffers, mode.Stereo,
+                out pixelformat);
             MyAGLReportError("aglChoosePixelFormat");
 
             Debug.Print("Creating AGL context.  Sharing with {0}", shareContextRef);
-            myAGLPixelFormat = Mode.Index.Value;
-
             // create the context and share it with the share reference.
-            Handle = new ContextHandle(Agl.aglCreateContext(myAGLPixelFormat, shareContextRef));
+            Handle = new ContextHandle(Agl.aglCreateContext(pixelformat, shareContextRef));
             MyAGLReportError("aglCreateContext");
 
             // Free the pixel format from memory.
-            Agl.aglDestroyPixelFormat(myAGLPixelFormat);
+            Agl.aglDestroyPixelFormat(pixelformat);
             MyAGLReportError("aglDestroyPixelFormat");
 
-            Debug.Print("IsControl: {0}", carbonWindow.IsControl);
-            
             SetDrawable(carbonWindow);
             SetBufferRect(carbonWindow);
             Update(carbonWindow);
 
             MakeCurrent(carbonWindow);
             Debug.Print("context: {0}", Handle.Handle);
+
+            dummyContext = new GraphicsContext(Handle,
+                GetAddress,
+                delegate()
+                {
+                    return new ContextHandle(Agl.aglGetCurrentContext());
+                });
         }
 
-        private IntPtr GetQuartzDevice(CarbonWindowInfo carbonWindow)
+        void SetBufferRect(IWindowInfo carbonWindow)
         {
-            IntPtr windowRef = carbonWindow.Handle;
+            Rect rect = API.GetControlBounds(carbonWindow.Handle);
-            
-            if (CarbonGLNative.WindowRefMap.ContainsKey(windowRef) == false)
-                return IntPtr.Zero;
-            
-            WeakReference nativeRef = CarbonGLNative.WindowRefMap[windowRef];
-            if (nativeRef.IsAlive == false)
-                return IntPtr.Zero;
-            
-            CarbonGLNative window = nativeRef.Target as CarbonGLNative;
-            
-            if (window == null)
-                return IntPtr.Zero;
-            
-            return QuartzDisplayDeviceDriver.HandleTo(window.TargetDisplayDevice);
-            
-        }
-
-        void SetBufferRect(CarbonWindowInfo carbonWindow)
-        {
-            if (carbonWindow.IsControl == false)
-                return;
-
-            Rect rect = API.GetControlBounds(carbonWindow.WindowHandle);
 
             Debug.Print("Setting buffer_rect for control.");
             Debug.Print("MacOS Coordinate Rect:   {0}", rect);
             int[] glrect = new int[4];
 
-            if (carbonWindow.XOffset != null)
+            if (XOffset != null)
-                glrect[0] = rect.X + carbonWindow.XOffset();
+                glrect[0] = rect.X + XOffset();
             else
                 glrect[0] = rect.X;
-            if (carbonWindow.YOffset != null)
+            if (YOffset != null)
-                glrect[1] = rect.Y + carbonWindow.YOffset();
+                glrect[1] = rect.Y + YOffset();
             else
                 glrect[1] = rect.Y;
             glrect[2] = rect.Width;
@@ -194,144 +165,53 @@ namespace OpenTK.Platform.MacOS
             Agl.aglEnable(Handle.Handle, Agl.ParameterNames.AGL_BUFFER_RECT);
             MyAGLReportError("aglEnable");
         }
-        void SetDrawable(CarbonWindowInfo carbonWindow)
+
+        void SetDrawable(IWindowInfo carbonWindow)
         {
             IntPtr windowPort = GetWindowPortForWindowInfo(carbonWindow);
             //Debug.Print("Setting drawable for context {0} to window port: {1}", Handle.Handle, windowPort);
-            
             Agl.aglSetDrawable(Handle.Handle, windowPort);
-            
             MyAGLReportError("aglSetDrawable");
-            
         }
 
-        private static IntPtr GetWindowPortForWindowInfo(CarbonWindowInfo carbonWindow)
+        private static IntPtr GetWindowPortForWindowInfo(IWindowInfo carbonWindow)
         {
             IntPtr windowPort;
-            if (carbonWindow.IsControl)
-            {
             IntPtr controlOwner = API.GetControlOwner(carbonWindow.Handle);
-                
             windowPort = API.GetWindowPort(controlOwner);
-            }
-            else
-            {
-                windowPort = API.GetWindowPort(carbonWindow.Handle);
-            }
 
             return windowPort;
         }
-        public override void Update(IWindowInfo window)
+
+        public void Update(IWindowInfo window)
         {
-            CarbonWindowInfo carbonWindow = (CarbonWindowInfo)window;
+            SetDrawable(window);
-            
+            SetBufferRect(window);
-            if (carbonWindow.GoFullScreenHack)
-            {
-                carbonWindow.GoFullScreenHack = false;
-                CarbonGLNative wind = GetCarbonWindow(carbonWindow);
-                
-                if (wind != null)
-                    wind.SetFullscreen(this);
-                else
-                    Debug.Print("Could not find window!");
-                
-                return;
-            }
-
-            else if (carbonWindow.GoWindowedHack)
-            {
-                carbonWindow.GoWindowedHack = false;
-                CarbonGLNative wind = GetCarbonWindow(carbonWindow);
-                
-                if (wind != null)
-                    wind.UnsetFullscreen(this);
-                else
-                    Debug.Print("Could not find window!");
-                
-            }
-            
-            if (mIsFullscreen)
-                return;
-            
-            SetDrawable(carbonWindow);
-            SetBufferRect(carbonWindow);
 
             Agl.aglUpdateContext(Handle.Handle);
         }
 
-        private CarbonGLNative GetCarbonWindow(CarbonWindowInfo carbonWindow)
-        {
-            WeakReference r = CarbonGLNative.WindowRefMap[carbonWindow.Handle];
-            
-            if (r.IsAlive)
-            {
-                return (CarbonGLNative)r.Target;
-            }
-
-            else
-                return null;
-        }
-
         void MyAGLReportError(string function)
         {
             Agl.AglError err = Agl.GetError();
 
             if (err != Agl.AglError.NoError)
-                throw new MacOSException((OSStatus)err, string.Format("AGL Error from function {0}: {1}  {2}", function, err, Agl.ErrorString(err)));
+                throw new Exception(String.Format(
+                    "AGL Error from function {0}: {1}  {2}",
+                    function, err, Agl.ErrorString(err)));
         }
 
-        bool firstFullScreen = false;
-
-        internal void SetFullScreen(CarbonWindowInfo info, out int width, out int height)
-        {
-            CarbonGLNative wind = GetCarbonWindow(info);
-            
-            Debug.Print("Switching to full screen {0}x{1} on context {2}", wind.TargetDisplayDevice.Width, wind.TargetDisplayDevice.Height, Handle.Handle);
-            
-            CG.DisplayCapture(GetQuartzDevice(info));
-            Agl.aglSetFullScreen(Handle.Handle, wind.TargetDisplayDevice.Width, wind.TargetDisplayDevice.Height, 0, 0);
-            MakeCurrent(info);
-            
-            width = wind.TargetDisplayDevice.Width;
-            height = wind.TargetDisplayDevice.Height;
-            
-            // This is a weird hack to workaround a bug where the first time a context
-            // is made fullscreen, we just end up with a blank screen.  So we undo it as fullscreen
-            // and redo it as fullscreen.  
-            if (firstFullScreen == false)
-            {
-                firstFullScreen = true;
-                UnsetFullScreen(info);
-                SetFullScreen(info, out width, out height);
-            }
-            
-            mIsFullscreen = true;
-        }
-        internal void UnsetFullScreen(CarbonWindowInfo windowInfo)
-        {
-            Debug.Print("Unsetting AGL fullscreen.");
-            Agl.aglSetDrawable(Handle.Handle, IntPtr.Zero);
-            Agl.aglUpdateContext(Handle.Handle);
-            
-            CG.DisplayRelease(GetQuartzDevice(windowInfo));
-            Debug.Print("Resetting drawable.");
-            SetDrawable(windowInfo);
-            
-            mIsFullscreen = false;
-        }
-
-
         #region IGraphicsContext Members
 
-        bool firstSwap = false;
+        bool firstSwap = true;
-        public override void SwapBuffers()
+        public void SwapBuffers()
         {
             // this is part of the hack to avoid dropping the first frame when
             // using multiple GLControls.
-            if (firstSwap == false && carbonWindow.IsControl)
+            if (firstSwap)
             {
                 Debug.WriteLine("--> Resetting drawable. <--");
-                firstSwap = true;
+                firstSwap = false;
                 SetDrawable(carbonWindow);
                 Update(carbonWindow);
             }
@@ -340,20 +220,21 @@ namespace OpenTK.Platform.MacOS
             MyAGLReportError("aglSwapBuffers");
         }
 
-        public override void MakeCurrent(IWindowInfo window)
+        public void MakeCurrent(IWindowInfo window)
         {
             if (Agl.aglSetCurrentContext(Handle.Handle) == false)
                 MyAGLReportError("aglSetCurrentContext");
         }
 
-        public override bool IsCurrent
+        public bool IsCurrent
         {
             get { return (Handle.Handle == Agl.aglGetCurrentContext()); }
         }
 
-        public override int SwapInterval
+        public int SwapInterval
+        {
+            get
             {
-            get {
                 int swap_interval = 0;
                 if (Agl.aglGetInteger(Handle.Handle, Agl.ParameterNames.AGL_SWAP_INTERVAL, out swap_interval))
                 {
@@ -372,6 +253,64 @@ namespace OpenTK.Platform.MacOS
             }
         }
 
+        public GraphicsMode Mode
+        {
+            get
+            {
+                return mode;
+            }
+            set
+            {
+                mode = value;
+            }
+
+        }
+
+        public void LoadAll()
+        {
+            dummyContext.LoadAll();
+        }
+
+        public bool IsDisposed
+        {
+            get
+            {
+                return disposed;
+            }
+        }
+
+        public bool VSync
+        {
+            get
+            {
+                return SwapInterval != 0;
+            }
+            set
+            {
+                SwapInterval = value ? 1 : 0;
+            }
+        }
+
+        public GraphicsMode GraphicsMode
+        {
+            get
+            {
+                return mode;
+            }
+        }
+
+        public bool ErrorChecking
+        {
+            get
+            {
+                return error_checking;
+            }
+            set
+            {
+                error_checking = value;
+            }
+        }
+
         #endregion
 
         #region IDisposable Members
@@ -381,7 +320,7 @@ namespace OpenTK.Platform.MacOS
             Dispose(false);
         }
 
-        public override void Dispose()
+        public void Dispose()
         {
             Dispose(true);
         }
@@ -418,26 +357,42 @@ namespace OpenTK.Platform.MacOS
             // don't throw an exception from the finalizer thread.
             if (disposing)
             {
-                throw new MacOSException((OSStatus)Agl.GetError(), Agl.ErrorString(Agl.GetError()));
+                throw new Exception(Agl.ErrorString(Agl.GetError()));
             }
 
-            IsDisposed = true;
+            disposed = true;
         }
 
         #endregion
 
         #region IGraphicsContextInternal Members
 
-        public override IntPtr GetAddress(string function)
+        public IntPtr GetAddress(string function)
         {
             return NS.GetAddress(function);
         }
 
-        public override IntPtr GetAddress(IntPtr function)
+        public IntPtr GetAddress(IntPtr function)
         {
             return NS.GetAddress(function);
         }
 
+        public IGraphicsContext Implementation
+        {
+            get
+            {
+                return this;
+            }
+        }
+
+        public ContextHandle Context
+        {
+            get
+            {
+                return Handle;
+            }
+        }
+
         #endregion
     }
 }

Source/GLControl/AglGraphicsMode.cs

@@ -33,46 +33,23 @@ using OpenTK.Graphics;
 
 namespace OpenTK.Platform.MacOS
 {
-    using Carbon;
+    class AglGraphicsMode
-
-    class MacOSGraphicsMode : IGraphicsMode
     {
-        readonly IntPtr Device;
-
-        public MacOSGraphicsMode(IntPtr device)
-        {
-            Device = device;
-        }
-
-        #region IGraphicsMode Members
-
         public GraphicsMode SelectGraphicsMode(ColorFormat color, int depth, int stencil,
-            int samples, ColorFormat accum, int buffers, bool stereo)
+            int samples, ColorFormat accum, int buffers, bool stereo, out IntPtr pixelformat)
         {
-            IntPtr pixelformat;
             do
             {
                 pixelformat = SelectPixelFormat(
-                    color, depth, stencil, samples, accum, buffers, stereo,
+                    color, depth, stencil, samples, accum, buffers, stereo);
-                    true, Device);
-
-                Agl.AglError err = Agl.GetError();
-                if (pixelformat == IntPtr.Zero || err == Agl.AglError.BadPixelFormat)
-                {
-                    Debug.Print("Failed to create full screen pixel format.");
-                    Debug.Print("Trying again to create a non-fullscreen pixel format.");
-                    pixelformat = SelectPixelFormat(
-                        color, depth, stencil, samples, accum, buffers, stereo,
-                        false, IntPtr.Zero);
-                }
 
                 if (pixelformat == IntPtr.Zero)
                 {
-                    if (!Utilities.RelaxGraphicsMode(
+                    if (!RelaxGraphicsMode(
                         ref color, ref depth, ref stencil, ref samples, ref accum,
                         ref buffers, ref stereo))
                     {
-                        throw new GraphicsModeException("Requested GraphicsMode not available.");
+                        throw new GraphicsModeException("Requested GraphicsMode not available, error: " + Agl.GetError());
                     }
                 }
             }
@@ -81,10 +58,76 @@ namespace OpenTK.Platform.MacOS
             return GetGraphicsModeFromPixelFormat(pixelformat);
         }
 
-        #endregion
-
         #region Internal Members
 
+        static bool RelaxGraphicsMode(ref ColorFormat color, ref int depth, ref int stencil, ref int samples, ref ColorFormat accum, ref int buffers, ref bool stereo)
+        {
+            // Parameters are relaxed in order of importance.
+            // - Accumulator buffers are way outdated as a concept,
+            // so they go first.
+            // - Triple+ buffering is generally not supported by the
+            // core WGL/GLX/AGL/CGL/EGL specs, so we clamp
+            // to double-buffering as a second step. (If this doesn't help
+            // we will also fall back to undefined single/double buffering
+            // as a last resort).
+            // - AA samples are an easy way to increase compatibility
+            // so they go next.
+            // - Stereoscopic is only supported on very few GPUs
+            // (Quadro/FirePro series) so it goes next.
+            // - The rest of the parameters then follow.
+
+            if (accum != 0)
+            {
+                accum = 0;
+                return true;
+            }
+
+            if (buffers > 2)
+            {
+                buffers = 2;
+                return true;
+            }
+
+            if (samples > 0)
+            {
+                samples = Math.Max(samples - 1, 0);
+                return true;
+            }
+
+            if (stereo)
+            {
+                stereo = false;
+                return true;
+            }
+
+            if (stencil != 0)
+            {
+                stencil = 0;
+                return true;
+            }
+
+            if (depth != 0)
+            {
+                depth = 0;
+                return true;
+            }
+
+            if (color != 24)
+            {
+                color = 24;
+                return true;
+            }
+
+            if (buffers != 0)
+            {
+                buffers = 0;
+                return true;
+            }
+
+            // no parameters left to relax, fail
+            return false;
+        }
+
         GraphicsMode GetGraphicsModeFromPixelFormat(IntPtr pixelformat)
         {
             int r, g, b, a;
@@ -104,12 +147,12 @@ namespace OpenTK.Platform.MacOS
             Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_DOUBLEBUFFER, out buffers);
             Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_STEREO, out stereo);
 
-            return new GraphicsMode(pixelformat, new ColorFormat(r, g, b, a),
+            return new GraphicsMode(new ColorFormat(r, g, b, a),
                 depth, stencil, samples, new ColorFormat(ar, ag, ab, aa), buffers + 1, stereo != 0);
         }
 
         IntPtr SelectPixelFormat(ColorFormat color, int depth, int stencil, int samples,
-            ColorFormat accum, int buffers, bool stereo, bool fullscreen, IntPtr device)
+            ColorFormat accum, int buffers, bool stereo)
         {
             List<int> attribs = new List<int>();
 
@@ -144,7 +187,7 @@ namespace OpenTK.Platform.MacOS
                 attribs.Add((int)Agl.PixelFormatAttribute.AGL_DOUBLEBUFFER);
             }
 
-            if (stencil > 1)
+            if (stencil > 0)
             {
                 attribs.Add((int)Agl.PixelFormatAttribute.AGL_STENCIL_SIZE);
                 attribs.Add(stencil);
@@ -175,23 +218,10 @@ namespace OpenTK.Platform.MacOS
                 attribs.Add((int)Agl.PixelFormatAttribute.AGL_STEREO);
             }
 
-            if (fullscreen)
-            {
-                attribs.Add((int)Agl.PixelFormatAttribute.AGL_FULLSCREEN);
-            }
-
             attribs.Add(0);
             attribs.Add(0);
 
-            IntPtr pixelformat = IntPtr.Zero;
+            IntPtr pixelformat = Agl.aglChoosePixelFormat(IntPtr.Zero, 0, attribs.ToArray());
-            if (device != IntPtr.Zero)
-            {
-                pixelformat = Agl.aglChoosePixelFormat(ref device, 0, attribs.ToArray());
-            }
-            else
-            {
-                pixelformat = Agl.aglChoosePixelFormat(IntPtr.Zero, 0, attribs.ToArray());
-            }
             return pixelformat;
         }
 

Source/GLControl/Carbon.cs

@@ -0,0 +1,160 @@
+using System;
+using System.Drawing;
+using System.Runtime.InteropServices;
+
+namespace OpenTK.Platform.MacOS.Carbon
+{
+    internal enum OSStatus
+    {
+        NoError = 0,
+
+        ParameterError               = -50,                          /*error in user parameter list*/
+        NoHardwareError             = -200,                         /*Sound Manager Error Returns*/
+        NotEnoughHardwareError      = -201,                         /*Sound Manager Error Returns*/
+        UserCanceledError           = -128,
+        QueueError                  = -1,                           /*queue element not found during deletion*/
+        VTypErr                     = -2,                           /*invalid queue element*/
+        CorErr                      = -3,                           /*core routine number out of range*/
+        UnimpErr                    = -4,                           /*unimplemented core routine*/
+        SlpTypeErr                  = -5,                           /*invalid queue element*/
+        SeNoDB                      = -8,                           /*no debugger installed to handle debugger command*/
+        ControlErr                  = -17,                          /*I/O System Errors*/
+        StatusErr                   = -18,                          /*I/O System Errors*/
+        ReadErr                     = -19,                          /*I/O System Errors*/
+        WritErr                     = -20,                          /*I/O System Errors*/
+        BadUnitErr                  = -21,                          /*I/O System Errors*/
+        UnitEmptyErr                = -22,                          /*I/O System Errors*/
+        OpenErr                     = -23,                          /*I/O System Errors*/
+        ClosErr                     = -24,                          /*I/O System Errors*/
+        DRemovErr                   = -25,                          /*tried to remove an open driver*/
+        DInstErr                    = -26,                          /*DrvrInstall couldn't find driver in resources*/
+
+        // Window Manager result codes.
+        InvalidWindowPtr = -5600,
+        UnsupportedWindowAttributesForClass = -5601,
+        WindowDoesNotHaveProxy = -5602,
+        WindowPropertyNotFound = -5604,
+        UnrecognizedWindowClass = -5605,
+        CorruptWindowDescription = -5606,
+        UserWantsToDragWindow = -5607,
+        WindowsAlreadyInitialized = -5608,
+        FloatingWindowsNotInitialized = -5609,
+        WindowNotFound = -5610,
+        WindowDoesNotFitOnscreen = -5611,
+        WindowAttributeImmutable = -5612,
+        WindowAttributesConflict = -5613,
+        WindowManagerInternalError = -5614,
+        WindowWrongState = -5615,
+        WindowGroupInvalid = -5616,
+        WindowAppModalStateAlreadyExists = -5617,
+        WindowNoAppModalState = -5618,
+        WindowDoesntSupportFocus = -30583,
+        WindowRegionCodeInvalid = -30593,
+
+        // Event Manager result codes
+        EventAlreadyPosted = -9860,
+        EventTargetBusy = -9861,
+        EventDeferAccessibilityEvent = -9865,
+        EventInternalError = -9868,
+        EventParameterNotFound = -9870,
+        EventNotHandled = -9874,
+        EventLoopTimedOut = -9875,
+        EventLoopQuit = -9876,
+        EventNotInQueue = -9877,
+        HotKeyExists = -9878,
+        EventPassToNextTarget = -9880
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    internal struct Rect
+    {
+        short top;
+        short left;
+        short bottom;
+        short right;
+
+        internal Rect(int left, int top, int width, int height)
+            : this((short)left, (short)top, (short)width, (short)height)
+        {
+        }
+
+        internal Rect(short _left, short _top, short _width, short _height)
+        {
+            top = _top;
+            left = _left;
+            bottom = (short)(_top + _height);
+            right = (short)(_left + _width);
+        }
+
+        internal short X
+        {
+            get { return left; }
+            set
+            {
+                short width = Width;
+                left = value;
+                right = (short)(left + width);
+            }
+        }
+
+        internal short Y
+        {
+            get { return top; }
+            set
+            {
+                short height = Height;
+                top = value;
+                bottom = (short)(top + height);
+            }
+        }
+
+        internal short Width 
+        { 
+            get { return (short)(right - left); } 
+            set { right = (short)(left + value); }
+        }
+
+        internal short Height 
+        { 
+            get { return (short)(bottom - top); } 
+            set { bottom = (short)(top + value); }
+        }
+
+        public override string ToString()
+        {
+            return string.Format(
+                "Rect: [{0}, {1}, {2}, {3}]", X, Y, Width, Height);
+        }
+
+        public Rectangle ToRectangle()
+        {
+            return new Rectangle(X, Y, Width, Height);
+        }
+    }
+
+    class API
+    {
+        const string carbon = "/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon";
+
+        [DllImport(carbon)]
+        internal unsafe static extern OSStatus DMGetGDeviceByDisplayID(
+            IntPtr displayID, out IntPtr displayDevice, Boolean failToMain);
+
+        [DllImport(carbon)]
+        static extern IntPtr GetControlBounds(IntPtr control, out Rect bounds);
+
+        internal static Rect GetControlBounds(IntPtr control)
+        {
+            Rect retval;
+            GetControlBounds(control, out retval);
+            return retval;
+        }
+
+        [DllImport(carbon)]
+        internal static extern IntPtr GetControlOwner(IntPtr control);
+
+        [DllImport(carbon)]
+        internal static extern IntPtr GetWindowPort(IntPtr windowRef);
+    }
+}
+

Source/GLControl/CarbonGLControl.cs

@@ -32,6 +32,7 @@ using System.Windows.Forms;
 
 using OpenTK.Graphics;
 using OpenTK.Platform;
+using OpenTK.Platform.MacOS;
 
 namespace OpenTK
 {
@@ -46,7 +47,7 @@ namespace OpenTK
             this.mode = mode;
             this.control = owner;
 
-            window_info = Utilities.CreateMacOSCarbonWindowInfo(control.Handle, false, true, GetXOffset, GetYOffset);
+            window_info = Utilities.CreateMacOSCarbonWindowInfo(control.Handle, false, true);
         }
 
         private int GetXOffset()
@@ -70,7 +71,8 @@ namespace OpenTK
 
         public IGraphicsContext CreateContext(int major, int minor, GraphicsContextFlags flags)
         {
-            return new GraphicsContext(mode, WindowInfo, major, minor, flags);
+            // AGL does not support OpenGL profiles
+            return new AglContext(mode, WindowInfo, GraphicsContext.CurrentContext, GetXOffset, GetYOffset);
         }
 
         // TODO: Fix this

Source/GLControl/NS.cs

@@ -0,0 +1,113 @@
+#region License
+//
+// NS.cs
+//
+// Author:
+//       Stefanos A. <stapostol@gmail.com>
+//
+// Copyright (c) 2006-2013 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.MacOS
+{
+    internal class NS
+    {
+        const string Library = "libdl.dylib";
+
+        [DllImport(Library, EntryPoint = "NSIsSymbolNameDefined")]
+        static extern bool NSIsSymbolNameDefined(string s);
+        [DllImport(Library, EntryPoint = "NSIsSymbolNameDefined")]
+        static extern bool NSIsSymbolNameDefined(IntPtr s);
+        [DllImport(Library, EntryPoint = "NSLookupAndBindSymbol")]
+        static extern IntPtr NSLookupAndBindSymbol(string s);
+        [DllImport(Library, EntryPoint = "NSLookupAndBindSymbol")]
+        static extern IntPtr NSLookupAndBindSymbol(IntPtr s);
+        [DllImport(Library, EntryPoint = "NSAddressOfSymbol")]
+        static extern IntPtr NSAddressOfSymbol(IntPtr symbol);
+        [DllImport(Library)]
+        private static extern IntPtr dlopen(String fileName, int flags);
+        [DllImport(Library)]
+        private static extern int dlclose(IntPtr handle);
+        [DllImport (Library)]
+        private static extern IntPtr dlsym (IntPtr handle, string symbol);
+
+        public static IntPtr GetAddress(string function)
+        {
+            // Instead of allocating and combining strings in managed memory
+            // we do that directly in unmanaged memory. This way, we avoid
+            // 2 string allocations every time this function is called.
+
+            // must add a '_' prefix and null-terminate the function name,
+            // hence we allocate +2 bytes
+            IntPtr ptr = Marshal.AllocHGlobal(function.Length + 2);
+            try
+            {
+                Marshal.WriteByte(ptr, (byte)'_');
+                for (int i = 0; i < function.Length; i++)
+                {
+                    Marshal.WriteByte(ptr, i + 1, (byte)function[i]);
+                }
+                Marshal.WriteByte(ptr, function.Length + 1, 0); // null-terminate
+
+                IntPtr symbol = GetAddress(ptr);
+                return symbol;
+            }
+            finally
+            {
+                Marshal.FreeHGlobal(ptr);
+            }
+        }
+
+        public static IntPtr GetAddress(IntPtr function)
+        {
+            IntPtr symbol = IntPtr.Zero;
+            if (NSIsSymbolNameDefined(function))
+            {
+                symbol = NSLookupAndBindSymbol(function);
+                if (symbol != IntPtr.Zero)
+                    symbol = NSAddressOfSymbol(symbol);
+            }
+            return symbol;
+        }
+
+        public static IntPtr GetSymbol(IntPtr handle, string symbol)
+        {
+            return dlsym(handle, symbol);
+        }
+
+        public static IntPtr LoadLibrary(string fileName)
+        {
+            const int RTLD_NOW = 2;
+            return dlopen(fileName, RTLD_NOW);
+        }
+
+        public static void FreeLibrary(IntPtr handle)
+        {
+            dlclose(handle);
+        }
+    }
+}
+

Source/GLControl/OpenTK.GLControl.csproj

@@ -162,6 +162,22 @@
     <Compile Include="Properties\AssemblyInfo.cs">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="Agl.cs">
+      <DependentUpon>CarbonGLControl.cs</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="AglContext.cs">
+      <DependentUpon>CarbonGLControl.cs</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="AglGraphicsMode.cs">
+      <DependentUpon>CarbonGLControl.cs</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Carbon.cs" />
+    <Compile Include="NS.cs">
+      <DependentUpon>CarbonGLControl.cs</DependentUpon>
+    </Compile>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\OpenTK.snk">

Source/OpenTK/OpenTK.csproj

@@ -282,9 +282,6 @@
     <Compile Include="Platform\MacOS\EventInfo.cs">
       <SubType>Code</SubType>
     </Compile>
-    <Compile Include="Platform\MacOS\MacOSGraphicsMode.cs">
-      <SubType>Code</SubType>
-    </Compile>
     <Compile Include="Platform\MacOS\MacOSFactory.cs">
       <SubType>Code</SubType>
     </Compile>
@@ -294,42 +291,12 @@
     <Compile Include="Platform\MacOS\MacOSKeyMap.cs">
       <SubType>Code</SubType>
     </Compile>
-    <Compile Include="Platform\MacOS\CarbonGLNative.cs">
-      <SubType>Code</SubType>
-    </Compile>
     <Compile Include="Platform\MacOS\Application.cs">
       <SubType>Code</SubType>
     </Compile>
-    <Compile Include="Platform\MacOS\AglContext.cs">
-      <SubType>Code</SubType>
-    </Compile>
     <Compile Include="Platform\MacOS\QuartzDisplayDeviceDriver.cs">
       <SubType>Code</SubType>
     </Compile>
-    <Compile Include="Platform\MacOS\CarbonInput.cs">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="Platform\MacOS\CarbonWindowInfo.cs">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="Platform\MacOS\CarbonBindings\CarbonAPI.cs">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="Platform\MacOS\CarbonBindings\SpeechChannel.cs">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="Platform\MacOS\CarbonBindings\QuartzDisplayServicesAPI.cs">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="Platform\MacOS\CarbonBindings\MacOSKeys.cs">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="Platform\MacOS\CarbonBindings\Agl.cs">
-      <SubType>Code</SubType>
-    </Compile>
-    <Compile Include="Platform\MacOS\CarbonBindings\CoreFoundation.cs">
-      <SubType>Code</SubType>
-    </Compile>
     <Compile Include="Platform\Windows\WinRawKeyboard.cs">
       <SubType>Code</SubType>
     </Compile>
@@ -820,7 +787,25 @@
     <Compile Include="Platform\MacOS\Cocoa\NSEventModifierMask.cs" />
     <Compile Include="Platform\MacOS\Cocoa\NSTrackingAreaOptions.cs" />
     <Compile Include="Platform\MacOS\Cocoa\NSApplicationPresentationOptions.cs" />
-    <Compile Include="Platform\MacOS\CarbonBindings\Cgl.cs" />
+    <Compile Include="Platform\MacOS\CarbonWindowInfo.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Platform\MacOS\Carbon\CarbonAPI.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Platform\MacOS\Carbon\SpeechChannel.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Platform\MacOS\Carbon\QuartzDisplayServicesAPI.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Platform\MacOS\Carbon\MacOSKeys.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Platform\MacOS\Carbon\CoreFoundation.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Platform\MacOS\Carbon\Cgl.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>

Source/OpenTK/Platform/MacOS/Application.cs

@@ -39,7 +39,6 @@ namespace OpenTK.Platform.MacOS.Carbon
     {
         static bool mInitialized = false;
         static IntPtr uppHandler;
-        static CarbonGLNative eventHandler;
         static int osMajor, osMinor, osBugfix;
 
         static Application()
@@ -76,12 +75,6 @@ namespace OpenTK.Platform.MacOS.Carbon
             API.SetFrontProcess(ref psn);
         }
 
-        static internal CarbonGLNative WindowEventHandler
-        {
-            get { return eventHandler; }
-            set { eventHandler = value; }
-        }
-
         static void ConnectEvents()
         {
             
@@ -131,36 +124,16 @@ namespace OpenTK.Platform.MacOS.Carbon
                             return OSStatus.EventNotHandled;
                     }
 
-            
                 case EventClass.AppleEvent:
                 // only event here is the apple event.
                     Debug.Print("Processing apple event.");
                     API.ProcessAppleEvent(inEvent);
                     break;
-            
-                case EventClass.Keyboard:
-                case EventClass.Mouse:
-                    if (WindowEventHandler != null)
-                    {
-                        return WindowEventHandler.DispatchEvent(inCaller, inEvent, evt, userData);
-                    }
-
-                    break;
             }
             
             return OSStatus.EventNotHandled;
         }
 
-        public static void Run(CarbonGLNative window)
-        {
-            window.Closed += MainWindowClosed;
-            window.Visible = true;
-            
-            API.RunApplicationEventLoop();
-            
-            window.Closed -= MainWindowClosed;
-        }
-
         static void MainWindowClosed(object sender, EventArgs e)
         {
             Debug.Print("Quitting application event loop.");

Source/OpenTK/Platform/MacOS/CarbonInput.cs

@@ -1,122 +0,0 @@
-#region License
-//
-// The Open Toolkit Library License
-//
-// Copyright (c) 2006 - 2010 the Open Toolkit library.
-//
-// 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.Text;
-
-namespace OpenTK.Platform.MacOS
-{
-    using Input;
-
-    class CarbonInput : IInputDriver, IInputDriver2
-    {
-        List<KeyboardDevice> dummy_keyboard_list = new List<KeyboardDevice>(1);
-        List<MouseDevice> dummy_mice_list = new List<MouseDevice>(1);
-        List<JoystickDevice> dummy_joystick_list = new List<JoystickDevice>(1);
-
-        internal CarbonInput()
-        {
-            dummy_mice_list.Add(new MouseDevice());
-            dummy_keyboard_list.Add(new KeyboardDevice());
-            dummy_joystick_list.Add(new JoystickDevice<object>(0, 0, 0));
-        }
-
-        #region IInputDriver Members
-
-        public void Poll()
-        {
-        }
-
-        #endregion
-
-        #region IKeyboardDriver Members
-
-        public IList<KeyboardDevice> Keyboard
-        {
-            get { return dummy_keyboard_list; }
-        }
-
-        #endregion
-
-        #region IMouseDriver Members
-
-        public IList<MouseDevice> Mouse
-        {
-            get { return dummy_mice_list; }
-        }
-
-        #endregion
-
-        #region IJoystickDriver Members
-
-        public IList<JoystickDevice> Joysticks
-        {
-            get { return dummy_joystick_list; }
-        }
-
-        #endregion
-
-        #region IDisposable Members
-
-        public void Dispose()
-        {
-        }
-
-        #endregion
-
-        public IMouseDriver2 MouseDriver
-        {
-            get
-            {
-                throw new NotImplementedException();
-            }
-        }
-
-        public IKeyboardDriver2 KeyboardDriver
-        {
-            get
-            {
-                throw new NotImplementedException();
-            }
-        }
-
-        public IGamePadDriver GamePadDriver
-        {
-            get
-            {
-                throw new NotImplementedException();
-            }
-        }
-
-        public IJoystickDriver2 JoystickDriver
-        {
-            get { throw new NotImplementedException(); }
-        }
-    }
-}

Source/OpenTK/Platform/MacOS/CarbonWindowInfo.cs

@@ -32,13 +32,6 @@ using System.Text;
 
 namespace OpenTK.Platform.MacOS
 {
-    /// <summary>
-    /// This delegate represents any method that takes no arguments and returns an int.
-    /// I would have used Func but that requires .NET 4
-    /// </summary>
-    /// <returns>The int value that your method returns</returns>
-    public delegate int GetInt();
-
     /// \internal
     /// <summary>
     /// Describes a Carbon window.
@@ -48,7 +41,7 @@ namespace OpenTK.Platform.MacOS
         IntPtr windowRef;
         bool ownHandle = false;
         bool disposed = false;
-        bool isControl = false;
+        bool isControl = true;
         bool goFullScreenHack = false;
         bool goWindowedHack = false;
 

Source/OpenTK/Platform/MacOS/MacOSException.cs

@@ -47,7 +47,7 @@ namespace OpenTK.Platform.MacOS
         {
             this.errorCode = errorCode;
         }
-        internal MacOSException(Agl.AglError errorCode, string message)
+        internal MacOSException(int errorCode, string message)
             : base(message)
         {
             this.errorCode = (OSStatus)errorCode;

Source/OpenTK/Platform/Utilities.cs

@@ -18,6 +18,16 @@ using OpenTK.Graphics;
 
 namespace OpenTK.Platform
 {
+    namespace MacOS
+    {
+        /// <summary>
+        /// This delegate represents any method that takes no arguments and returns an int.
+        /// I would have used Func but that requires .NET 4
+        /// </summary>
+        /// <returns>The int value that your method returns</returns>
+        public delegate int GetInt();
+    }
+
     /// <summary>
     /// Provides cross-platform utilities to help interact with the underlying platform.
     /// </summary>