public WinGLNative(int x, int y, int width, int height, string title, DisplayDevice device)
{
WindowProcedureDelegate = WindowProcedure;
UngroupFromTaskbar();
window = new WinWindowInfo(CreateWindow(x, y, width, height, title, device));
exists = true;
}
// Note: there is no relevant ARB function.
internal static void SetGraphicsModePFD(GraphicsMode mode, WinWindowInfo window)
{
Debug.Write("Setting pixel format... ");
if (!mode.Index.HasValue)
{
throw new GraphicsModeException("Invalid or unsupported GraphicsMode.");
}
if (window == null)
{
throw new ArgumentNullException("window", "Must point to a valid window.");
}
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
Functions.DescribePixelFormat(window.DeviceContext, (int)mode.Index.Value,
API.PixelFormatDescriptorSize, ref pfd);
Debug.WriteLine(mode.Index.ToString());
if (!Functions.SetPixelFormat(window.DeviceContext, (int)mode.Index.Value, ref pfd))
{
throw new GraphicsContextException(String.Format(
"Requested GraphicsMode not available. SetPixelFormat error: {0}", Marshal.GetLastWin32Error()));
}
}
public WinGLContext(GraphicsMode format, WinWindowInfo window)
{
if (window == null)
{
throw new ArgumentNullException("window", "Must point to a valid window.");
}
if (window.handle == IntPtr.Zero)
{
throw new ArgumentException("window", "Must be a valid window.");
}
Debug.Print("OpenGL will be bound to handle: {0}", window.handle);
SelectGraphicsModePFD(format, (WinWindowInfo)window);
Debug.Print("Setting pixel format... ");
SetGraphicsModePFD(format, (WinWindowInfo)window);
ContextHandle = Wgl.wglCreateContext(window.DeviceContext);
if (ContextHandle == IntPtr.Zero)
{
ContextHandle = Wgl.wglCreateContext(window.DeviceContext);
}
if (ContextHandle == IntPtr.Zero)
{
throw new GraphicsContextException(
String.Format("Context creation failed. Wgl.CreateContext() error: {0}.",
Marshal.GetLastWin32Error()));
}
Debug.Print("success! (id: {0})", ContextHandle);
}
public WinGLNative(int x, int y, int width, int height, string title, GameWindowFlags options, DisplayDevice device)
{
// This is the main window procedure callback. We need the callback in order to create the window, so
// don't move it below the CreateWindow calls.
WindowProcedureDelegate = WindowProcedure;
//// This timer callback is called periodically when the window enters a sizing / moving modal loop.
//ModalLoopCallback = delegate(IntPtr handle, WindowMessage msg, UIntPtr eventId, int time)
//{
// // Todo: find a way to notify the frontend that it should process queued up UpdateFrame/RenderFrame events.
// if (Move != null)
// Move(this, EventArgs.Empty);
//};
// To avoid issues with Ati drivers on Windows 6+ with compositing enabled, the context will not be
// bound to the top-level window, but rather to a child window docked in the parent.
window = new WinWindowInfo(
CreateWindow(x, y, width, height, title, options, device, IntPtr.Zero), null);
child_window = new WinWindowInfo(
CreateWindow(0, 0, ClientSize.Width, ClientSize.Height, title, options, device, window.WindowHandle), window);
exists = true;
keyboard.Description = "Standard Windows keyboard";
keyboard.NumberOfFunctionKeys = 12;
keyboard.NumberOfKeys = 101;
keyboard.NumberOfLeds = 3;
mouse.Description = "Standard Windows mouse";
mouse.NumberOfButtons = 3;
mouse.NumberOfWheels = 1;
keyboards.Add(keyboard);
mice.Add(mouse);
}
private IEnumerable <GraphicsMode> GetModesPFD(INativeWindow native)
{
WinWindowInfo window = native.WindowInfo as WinWindowInfo;
IntPtr deviceContext = window.DeviceContext;
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
pfd.Size = API.PixelFormatDescriptorSize;
pfd.Version = API.PixelFormatDescriptorVersion;
pfd.Flags = PixelFormatDescriptorFlags.DRAW_TO_WINDOW | PixelFormatDescriptorFlags.SUPPORT_OPENGL;
if (Environment.OSVersion.Version.Major >= 6)
{
pfd.Flags |= PixelFormatDescriptorFlags.SUPPORT_COMPOSITION;
}
// ISSUE: reference to a compiler-generated field
this.\u003C\u003E7__wrapc = new bool[2]
{
false,
true
};
bool[] flagArray;
for (int index = 0; index < flagArray.Length; ++index)
{
bool generic_allowed = flagArray[index];
int pixel = 0;
while (WinGraphicsMode.DescribePixelFormat(deviceContext, ++pixel, (int)API.PixelFormatDescriptorSize, ref pfd) != 0)
{
if (generic_allowed || (pfd.Flags & PixelFormatDescriptorFlags.GENERIC_FORMAT) == (PixelFormatDescriptorFlags)0)
{
GraphicsMode fmt = new GraphicsMode(new IntPtr?((IntPtr)pixel), new ColorFormat((int)pfd.RedBits, (int)pfd.GreenBits, (int)pfd.BlueBits, (int)pfd.AlphaBits), (int)pfd.DepthBits, (int)pfd.StencilBits, 0, new ColorFormat((int)pfd.AccumBits), (pfd.Flags & PixelFormatDescriptorFlags.DOUBLEBUFFER) != (PixelFormatDescriptorFlags)0 ? 2 : 1, (pfd.Flags & PixelFormatDescriptorFlags.STEREO) != (PixelFormatDescriptorFlags)0);
yield return(fmt);
}
}
}
}
public override void MakeCurrent(IWindowInfo window)
{
lock (LoadLock)
{
bool success;
WinWindowInfo wnd = window as WinWindowInfo;
if (wnd != null)
{
if (wnd.Handle == IntPtr.Zero)
{
throw new ArgumentException("window", "Must point to a valid window.");
}
success = Wgl.MakeCurrent(wnd.DeviceContext, Handle.Handle);
DeviceContext = wnd.DeviceContext;
}
else
{
success = Wgl.MakeCurrent(IntPtr.Zero, IntPtr.Zero);
DeviceContext = IntPtr.Zero;
}
if (!success)
{
throw new GraphicsContextException(String.Format(
"Failed to make context {0} current. Error: {1}", this, Marshal.GetLastWin32Error()));
}
}
}
// Note: there is no relevant ARB function.
internal static GraphicsMode SetGraphicsModePFD(WinGraphicsMode mode_selector,
GraphicsMode mode, WinWindowInfo window)
{
Debug.Write("Setting pixel format... ");
if (window == null)
{
throw new ArgumentNullException("window", "Must point to a valid window.");
}
if (!mode.Index.HasValue)
{
mode = mode_selector.SelectGraphicsMode(
mode.ColorFormat, mode.Depth, mode.Stencil,
mode.Samples, mode.AccumulatorFormat,
mode.Buffers, mode.Stereo);
}
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
Functions.DescribePixelFormat(
window.DeviceContext, (int)mode.Index.Value,
API.PixelFormatDescriptorSize, ref pfd);
Debug.WriteLine(mode.Index.ToString());
if (!Functions.SetPixelFormat(window.DeviceContext, (int)mode.Index.Value, ref pfd))
{
throw new GraphicsContextException(String.Format(
"Requested GraphicsMode not available. SetPixelFormat error: {0}",
Marshal.GetLastWin32Error()));
}
return(mode);
}
internal WinRawInput(WinWindowInfo parent)
{
Debug.WriteLine("Initalizing windows raw input driver.");
Debug.Indent();
AssignHandle(parent.WindowHandle);
Debug.Print("Input window attached to parent {0}", parent);
keyboardDriver = new WinRawKeyboard(this.Handle);
mouseDriver = new WinRawMouse(this.Handle);
Debug.Unindent();
//AllocateBuffer();
}
public WinInputBase()
{
WndProc = WndProcHandler;
Parent = new WinWindowInfo(NativeWindow.OsuWindowHandle, null);
CreateDrivers();
// Subclass the window to retrieve the events we are interested in.
OldWndProc = Functions.SetWindowLong(Parent.Handle, WndProc);
Debug.Print("Input window attached to {0}", Parent);
}
internal WinRawInput(WinWindowInfo parent)
{
Debug.WriteLine("Initalizing windows raw input driver.");
Debug.Indent();
AssignHandle(parent.WindowHandle);
Debug.Print("Input window attached to parent {0}", parent);
keyboardDriver = new WinRawKeyboard(this.Handle);
mouseDriver = new WinRawMouse(this.Handle);
Debug.Unindent();
//AllocateBuffer();
}
public WinGLNative(int x, int y, int width, int height, string title, GameWindowFlags options, DisplayDevice device)
{
WindowProcedureDelegate = WindowProcedure;
// To avoid issues with Ati drivers on Windows 6+ with compositing enabled, the context will not be
// bound to the top-level window, but rather to a child window docked in the parent.
window = new WinWindowInfo(
CreateWindow(x, y, width, height, title, options, device, IntPtr.Zero), null);
child_window = new WinWindowInfo(
CreateWindow(0, 0, ClientSize.Width, ClientSize.Height, title, options, device, window.WindowHandle), window);
exists = true;
}
public WinGLContext(ContextHandle handle, WinWindowInfo window, IGraphicsContext sharedContext, int major, int minor, GraphicsContextFlags flags)
{
if (handle == ContextHandle.Zero)
{
throw new ArgumentException("handle");
}
if (window == null)
{
throw new ArgumentNullException("window");
}
this.Handle = handle;
}
public WinGLNative(int x, int y, int width, int height, string title, GameWindowFlags options, DisplayDevice device)
{
WindowProcedureDelegate = WindowProcedure;
// To avoid issues with Ati drivers on Windows 6+ with compositing enabled, the context will not be
// bound to the top-level window, but rather to a child window docked in the parent.
window = new WinWindowInfo(
CreateWindow(x, y, width, height, title, options, device, IntPtr.Zero), null);
child_window = new WinWindowInfo(
CreateWindow(0, 0, ClientSize.Width, ClientSize.Height, title, options, device, window.WindowHandle), window);
exists = true;
}
private static unsafe IntPtr RegisterForDeviceNotifications(WinWindowInfo parent)
{
BroadcastDeviceInterface type = new BroadcastDeviceInterface();
type.Size = BlittableValueType.StrideOf <BroadcastDeviceInterface>(type);
type.DeviceType = DeviceBroadcastType.INTERFACE;
type.ClassGuid = WinRawInput.DeviceInterfaceHid;
IntPtr num1 = Functions.RegisterDeviceNotification(parent.WindowHandle, new IntPtr((void *)&type), DeviceNotification.WINDOW_HANDLE);
int num2 = num1 == IntPtr.Zero ? 1 : 0;
return(num1);
}
public TemporaryContext(IntPtr native)
{
Debug.WriteLine("[WGL] Creating temporary context to load extensions");
if (native == null)
{
throw new ArgumentNullException();
}
// Create temporary context and load WGL entry points
// First, set a compatible pixel format to the device context
// of the temp window
WinWindowInfo window = new WinWindowInfo
{
Handle = native
};
WinGraphicsMode selector = new WinGraphicsMode(window.DeviceContext);
WinGLContext.SetGraphicsModePFD(selector, GraphicsMode.Default, window);
bool success = false;
// Then, construct a temporary context and load all wgl extensions
Context = new ContextHandle(Wgl.CreateContext(window.DeviceContext));
if (Context != ContextHandle.Zero)
{
// Make the context current.
// Note: on some video cards and on some virtual machines, wglMakeCurrent
// may fail with an errorcode of 6 (INVALID_HANDLE). The suggested workaround
// is to call wglMakeCurrent in a loop until it succeeds.
// See https://www.opengl.org/discussion_boards/showthread.php/171058-nVidia-wglMakeCurrent()-multiple-threads
// Sigh...
for (int retry = 0; retry < 5 && !success; retry++)
{
success = Wgl.MakeCurrent(window.DeviceContext, Context.Handle);
if (!success)
{
Debug.Print("wglMakeCurrent failed with error: {0}. Retrying", Marshal.GetLastWin32Error());
System.Threading.Thread.Sleep(10);
}
}
}
else
{
Debug.Print("[WGL] CreateContext failed with error: {0}", Marshal.GetLastWin32Error());
}
if (!success)
{
Debug.WriteLine("[WGL] Failed to create temporary context");
}
}
public WinGLContext(ContextHandle handle, WinWindowInfo window, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags, DesktopBackend backEnd)
: base(backEnd)
{
if (handle == ContextHandle.Zero)
{
throw new ArgumentException("handle");
}
if (window == null)
{
throw new ArgumentNullException("window");
}
Handle = handle;
}
IEnumerable <GraphicsMode> GetModesPFD(INativeWindow native)
{
WinWindowInfo window = native.WindowInfo as WinWindowInfo;
IntPtr deviceContext = ((WinWindowInfo)window).DeviceContext;
Debug.WriteLine(String.Format("Device context: {0}", deviceContext));
Debug.WriteLine("Retrieving PFD pixel formats... ");
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
pfd.Size = API.PixelFormatDescriptorSize;
pfd.Version = API.PixelFormatDescriptorVersion;
pfd.Flags =
PixelFormatDescriptorFlags.SUPPORT_OPENGL |
PixelFormatDescriptorFlags.DRAW_TO_WINDOW;
// Make sure we don't turn off Aero on Vista and newer.
if (Environment.OSVersion.Version.Major >= 6)
{
pfd.Flags |= PixelFormatDescriptorFlags.SUPPORT_COMPOSITION;
}
foreach (bool generic_allowed in new bool[] { false, true })
{
// Iterate through all accelerated formats first. Afterwards, iterate through non-accelerated formats.
// This should fix issue #2224, which causes OpenTK to fail on VMs without hardware acceleration.
int pixel = 0;
while (DescribePixelFormat(deviceContext, ++pixel, API.PixelFormatDescriptorSize, ref pfd) != 0)
{
// Ignore non-accelerated formats.
if (!generic_allowed && (pfd.Flags & PixelFormatDescriptorFlags.GENERIC_FORMAT) != 0)
{
continue;
}
GraphicsMode fmt = new GraphicsMode((IntPtr)pixel,
new ColorFormat(pfd.RedBits, pfd.GreenBits, pfd.BlueBits, pfd.AlphaBits),
pfd.DepthBits,
pfd.StencilBits,
0,
new ColorFormat(pfd.AccumBits),
(pfd.Flags & PixelFormatDescriptorFlags.DOUBLEBUFFER) != 0 ? 2 : 1,
(pfd.Flags & PixelFormatDescriptorFlags.STEREO) != 0);
yield return(fmt);
}
}
}
public override bool Equals(object obj)
{
if (obj == null || this.GetType() != obj.GetType())
{
return(false);
}
WinWindowInfo winWindowInfo = (WinWindowInfo)obj;
if (winWindowInfo == null)
{
return(false);
}
else
{
return(this.handle.Equals((object)winWindowInfo.handle));
}
}
public WMInput(WinWindowInfo parent)
{
Debug.WriteLine("Initalizing WMInput driver.");
Debug.Indent();
AssignHandle(parent.WindowHandle);
Debug.Print("Input window attached to parent {0}", parent);
Debug.Unindent();
keyboard.Description = "Standard Windows keyboard";
keyboard.NumberOfFunctionKeys = 12;
keyboard.NumberOfKeys = 101;
keyboard.NumberOfLeds = 3;
mouse.Description = "Standard Windows mouse";
mouse.NumberOfButtons = 3;
mouse.NumberOfWheels = 1;
keyboards.Add(keyboard);
mice.Add(mouse);
}
static IntPtr RegisterForDeviceNotifications(WinWindowInfo parent)
{
IntPtr dev_notify_handle;
BroadcastDeviceInterface bdi = new BroadcastDeviceInterface();
bdi.Size = BlittableValueType.StrideOf(bdi);
bdi.DeviceType = DeviceBroadcastType.INTERFACE;
bdi.ClassGuid = DeviceInterfaceHid;
unsafe
{
dev_notify_handle = Functions.RegisterDeviceNotification(parent.WindowHandle,
new IntPtr((void*)&bdi), DeviceNotification.WINDOW_HANDLE);
}
if (dev_notify_handle == IntPtr.Zero)
Debug.Print("[Warning] Failed to register for device notifications. Error: {0}", Marshal.GetLastWin32Error());
return dev_notify_handle;
}
public WMInput(WinWindowInfo parent)
{
Debug.WriteLine("Initalizing WMInput driver.");
Debug.Indent();
AssignHandle(parent.WindowHandle);
Debug.Print("Input window attached to parent {0}", parent);
Debug.Unindent();
keyboard.Description = "Standard Windows keyboard";
keyboard.NumberOfFunctionKeys = 12;
keyboard.NumberOfKeys = 101;
keyboard.NumberOfLeds = 3;
mouse.Description = "Standard Windows mouse";
mouse.NumberOfButtons = 3;
mouse.NumberOfWheels = 1;
keyboards.Add(keyboard);
mice.Add(mouse);
}
INativeWindow ConstructMessageWindow()
{
Debug.WriteLine("Initializing input driver.");
Debug.Indent();
// Create a new message-only window to retrieve WM_INPUT messages.
INativeWindow native = new NativeWindow();
native.ProcessEvents();
WinWindowInfo parent = native.WindowInfo as WinWindowInfo;
Functions.SetParent(parent.Handle, Constants.MESSAGE_ONLY);
native.ProcessEvents();
Debug.Unindent();
return(native);
}
private void SetGraphicsModePFD(GraphicsMode mode, WinWindowInfo window)
{
if (!mode.Index.HasValue)
{
throw new GraphicsModeException("Invalid or unsupported GraphicsMode.");
}
if (window == null)
{
throw new ArgumentNullException("window", "Must point to a valid window.");
}
PixelFormatDescriptor formatDescriptor = new PixelFormatDescriptor();
Functions.DescribePixelFormat(window.DeviceContext, (int)mode.Index.Value, (int)API.PixelFormatDescriptorSize, ref formatDescriptor);
if (!Functions.SetPixelFormat(window.DeviceContext, (int)mode.Index.Value, ref formatDescriptor))
{
throw new GraphicsContextException(string.Format("Requested GraphicsMode not available. SetPixelFormat error: {0}", (object)Marshal.GetLastWin32Error()));
}
}
public WinGLNative(int x, int y, int width, int height, string title, GameWindowFlags options, DisplayDevice device)
{
lock (WinGLNative.SyncRoot)
{
this.WindowProcedureDelegate = new WindowProcedure(this.WindowProcedure);
this.window = new WinWindowInfo(this.CreateWindow(x, y, width, height, title, options, device, IntPtr.Zero), (WinWindowInfo)null);
this.child_window = new WinWindowInfo(this.CreateWindow(0, 0, this.ClientSize.Width, this.ClientSize.Height, title, options, device, this.window.WindowHandle), this.window);
this.exists = true;
this.keyboard.Description = "Standard Windows keyboard";
this.keyboard.NumberOfFunctionKeys = 12;
this.keyboard.NumberOfKeys = 101;
this.keyboard.NumberOfLeds = 3;
this.mouse.Description = "Standard Windows mouse";
this.mouse.NumberOfButtons = 3;
this.mouse.NumberOfWheels = 1;
this.keyboards.Add(this.keyboard);
this.mice.Add(this.mouse);
}
}
/// <summary>Checks if <c>this</c> and <c>obj</c> reference the same win32 window.</summary>
/// <param name="obj">The object to check against.</param>
/// <returns>True if <c>this</c> and <c>obj</c> reference the same win32 window; false otherwise.</returns>
public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
if (this.GetType() != obj.GetType())
{
return(false);
}
WinWindowInfo info = (WinWindowInfo)obj;
if (info == null)
{
return(false);
}
// TODO: Assumes windows will always have unique handles.
return(handle.Equals(info.handle));
}
static IntPtr RegisterForDeviceNotifications(WinWindowInfo parent)
{
IntPtr dev_notify_handle;
BroadcastDeviceInterface bdi = new BroadcastDeviceInterface();
bdi.Size = BlittableValueType.StrideOf(bdi);
bdi.DeviceType = DeviceBroadcastType.INTERFACE;
bdi.ClassGuid = DeviceInterfaceHid;
unsafe
{
dev_notify_handle = Functions.RegisterDeviceNotification(parent.WindowHandle,
new IntPtr((void *)&bdi), DeviceNotification.WINDOW_HANDLE);
}
if (dev_notify_handle == IntPtr.Zero)
{
Debug.Print("[Warning] Failed to register for device notifications. Error: {0}", Marshal.GetLastWin32Error());
}
return(dev_notify_handle);
}
void SelectGraphicsModePFD(GraphicsMode format, WinWindowInfo window)
{
IntPtr deviceContext = window.DeviceContext;
Debug.Print("Device context: {0}", deviceContext);
ColorFormat color = format.ColorFormat;
Debug.Print("Selecting pixel format PFD... ");
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
pfd.Size = PixelFormatDescriptor.DefaultSize;
pfd.Version = PixelFormatDescriptor.DefaultVersion;
pfd.Flags =
PixelFormatDescriptorFlags.SUPPORT_OPENGL |
PixelFormatDescriptorFlags.DRAW_TO_WINDOW;
pfd.ColorBits = (byte)(color.Red + color.Green + color.Blue);
pfd.PixelType = color.IsIndexed ? PixelType.INDEXED : PixelType.RGBA;
pfd.RedBits = (byte)color.Red;
pfd.GreenBits = (byte)color.Green;
pfd.BlueBits = (byte)color.Blue;
pfd.AlphaBits = (byte)color.Alpha;
pfd.DepthBits = (byte)format.Depth;
pfd.StencilBits = (byte)format.Stencil;
if (format.Depth <= 0)
{
pfd.Flags |= PixelFormatDescriptorFlags.DEPTH_DONTCARE;
}
if (format.Buffers > 1)
{
pfd.Flags |= PixelFormatDescriptorFlags.DOUBLEBUFFER;
}
modeIndex = API.ChoosePixelFormat(deviceContext, ref pfd);
if (modeIndex == 0)
{
throw new GraphicsModeException("The requested GraphicsMode is not available.");
}
}
void SetGraphicsModePFD(GraphicsMode mode, WinWindowInfo window)
{
// Find out what we really got as a format:
IntPtr deviceContext = window.DeviceContext;
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
pfd.Size = PixelFormatDescriptor.DefaultSize;
pfd.Version = PixelFormatDescriptor.DefaultVersion;
API.DescribePixelFormat(deviceContext, modeIndex, pfd.Size, ref pfd);
Mode = new GraphicsMode(
new ColorFormat(pfd.RedBits, pfd.GreenBits, pfd.BlueBits, pfd.AlphaBits),
pfd.DepthBits, pfd.StencilBits,
(pfd.Flags & PixelFormatDescriptorFlags.DOUBLEBUFFER) != 0 ? 2 : 1);
Debug.Print("WGL mode index: " + modeIndex.ToString());
if (!API.SetPixelFormat(window.DeviceContext, modeIndex, ref pfd))
{
throw new GraphicsContextException(String.Format(
"Requested GraphicsMode not available. SetPixelFormat error: {0}", Marshal.GetLastWin32Error()));
}
}
public WinGLContext(GraphicsMode format, WinWindowInfo window, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
if (window == null)
throw new ArgumentNullException("window", "Must point to a valid window.");
if (window.WindowHandle == IntPtr.Zero)
throw new ArgumentException("window", "Must be a valid window.");
Mode = format;
Debug.Print("OpenGL will be bound to handle: {0}", window.WindowHandle);
Debug.Write("Setting pixel format... ");
this.SetGraphicsModePFD(format, (WinWindowInfo)window);
if (!wgl_loaded)
{
// We need to create a temp context in order to load wgl extensions (e.g. for multisampling or GL3).
// We cannot rely on OpenTK.Platform.Wgl until we create the context and call Wgl.LoadAll().
Debug.Print("Creating temporary context for wgl extensions.");
ContextHandle temp_context = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
Wgl.Imports.MakeCurrent(window.DeviceContext, temp_context.Handle);
Wgl.LoadAll();
Wgl.MakeCurrent(IntPtr.Zero, IntPtr.Zero);
Wgl.DeleteContext(temp_context.Handle);
wgl_loaded = true;
}
if (Wgl.Delegates.wglCreateContextAttribsARB != null)
{
try
{
Debug.Write("Using WGL_ARB_create_context... ");
List<int> attributes = new List<int>();
attributes.Add((int)ArbCreateContext.MajorVersion);
attributes.Add(major);
attributes.Add((int)ArbCreateContext.MinorVersion);
attributes.Add(minor);
if (flags != 0)
{
attributes.Add((int)ArbCreateContext.Flags);
attributes.Add((int)flags);
}
attributes.Add(0);
Handle = new ContextHandle(
Wgl.Arb.CreateContextAttribs(
window.DeviceContext,
sharedContext != null ? (sharedContext as IGraphicsContextInternal).Context.Handle : IntPtr.Zero,
attributes.ToArray()));
if (Handle == ContextHandle.Zero)
Debug.Print("failed. (Error: {0})", Marshal.GetLastWin32Error());
else
Debug.Print("success!");
}
catch (EntryPointNotFoundException e) { Debug.Print(e.ToString()); }
catch (NullReferenceException e) { Debug.Print(e.ToString()); }
}
if (Handle == ContextHandle.Zero)
{
// Failed to create GL3-level context, fall back to GL2.
Debug.Write("Falling back to GL2... ");
Handle = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
if (Handle == ContextHandle.Zero)
Handle = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
if (Handle == ContextHandle.Zero)
throw new GraphicsContextException(
String.Format("Context creation failed. Wgl.CreateContext() error: {0}.",
Marshal.GetLastWin32Error()));
}
Debug.WriteLine(String.Format("success! (id: {0})", Handle));
if (sharedContext != null)
{
Debug.Print("Sharing state with context {0}", sharedContext.ToString());
Wgl.Imports.ShareLists((sharedContext as IGraphicsContextInternal).Context.Handle, Handle.Handle);
}
}
public WinGLContext(GraphicsMode format, WinWindowInfo window, IGraphicsContext sharedContext, int major, int minor, GraphicsContextFlags flags)
{
lock (WinGLContext.SyncRoot)
{
if (window == null)
throw new ArgumentNullException("window", "Must point to a valid window.");
if (window.WindowHandle == IntPtr.Zero)
throw new ArgumentException("window", "Must be a valid window.");
this.Mode = format;
this.SetGraphicsModePFD(format, window);
lock (WinGLContext.LoadLock)
{
if (!WinGLContext.wgl_loaded)
{
ContextHandle local_0 = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
Wgl.Imports.MakeCurrent(window.DeviceContext, local_0.Handle);
Wgl.LoadAll();
Wgl.Imports.MakeCurrent(IntPtr.Zero, IntPtr.Zero);
Wgl.Imports.DeleteContext(local_0.Handle);
WinGLContext.wgl_loaded = true;
}
if (Wgl.Delegates.wglCreateContextAttribsARB != null)
{
try
{
List<int> local_1 = new List<int>();
local_1.Add(8337);
local_1.Add(major);
local_1.Add(8338);
local_1.Add(minor);
if (flags != GraphicsContextFlags.Default)
{
local_1.Add(8340);
local_1.Add((int) flags);
}
local_1.Add(0);
local_1.Add(0);
this.Handle = new ContextHandle(Wgl.Arb.CreateContextAttribs(window.DeviceContext, sharedContext != null ? (sharedContext as IGraphicsContextInternal).Context.Handle : IntPtr.Zero, local_1.ToArray()));
int temp_84 = this.Handle == ContextHandle.Zero ? 1 : 0;
}
catch (EntryPointNotFoundException exception_0)
{
}
catch (NullReferenceException exception_1)
{
}
}
}
if (this.Handle == ContextHandle.Zero)
{
this.Handle = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
if (this.Handle == ContextHandle.Zero)
this.Handle = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
if (this.Handle == ContextHandle.Zero)
throw new GraphicsContextException(string.Format("Context creation failed. Wgl.CreateContext() error: {0}.", (object) Marshal.GetLastWin32Error()));
}
if (sharedContext == null)
return;
Marshal.GetLastWin32Error();
Wgl.Imports.ShareLists((sharedContext as IGraphicsContextInternal).Context.Handle, this.Handle.Handle);
}
}
public WinGLNative(int x, int y, int width, int height, string title, GameWindowFlags options, DisplayDevice device)
{
lock (SyncRoot)
{
// This is the main window procedure callback. We need the callback in order to create the window, so
// don't move it below the CreateWindow calls.
WindowProcedureDelegate = WindowProcedure;
//// This timer callback is called periodically when the window enters a sizing / moving modal loop.
//ModalLoopCallback = delegate(IntPtr handle, WindowMessage msg, UIntPtr eventId, int time)
//{
// // Todo: find a way to notify the frontend that it should process queued up UpdateFrame/RenderFrame events.
// if (Move != null)
// Move(this, EventArgs.Empty);
//};
// To avoid issues with Ati drivers on Windows 6+ with compositing enabled, the context will not be
// bound to the top-level window, but rather to a child window docked in the parent.
window = new WinWindowInfo(
CreateWindow(x, y, width, height, title, options, device, IntPtr.Zero), null);
child_window = new WinWindowInfo(
CreateWindow(0, 0, ClientSize.Width, ClientSize.Height, title, options, device, window.WindowHandle), window);
exists = true;
keyboard.Description = "Standard Windows keyboard";
keyboard.NumberOfFunctionKeys = 12;
keyboard.NumberOfKeys = 101;
keyboard.NumberOfLeds = 3;
mouse.Description = "Standard Windows mouse";
mouse.NumberOfButtons = 3;
mouse.NumberOfWheels = 1;
keyboards.Add(keyboard);
mice.Add(mouse);
}
}
static WinGLContext()
{
lock (LoadLock)
{
// Dynamically load opengl32.dll in order to use the extension loading capabilities of Wgl.
if (opengl32Handle == IntPtr.Zero)
{
opengl32Handle = Functions.LoadLibrary(opengl32Name);
if (opengl32Handle == IntPtr.Zero)
{
throw new ApplicationException(String.Format("LoadLibrary(\"{0}\") call failed with code {1}",
opengl32Name, Marshal.GetLastWin32Error()));
}
Debug.WriteLine(String.Format("Loaded opengl32.dll: {0}", opengl32Handle));
}
// We need to create a temp context in order to load
// wgl extensions (e.g. for multisampling or GL3).
// We cannot rely on OpenTK.Platform.Wgl until we
// create the context and call Wgl.LoadAll().
Debug.Print("Creating temporary context for wgl extensions.");
using (INativeWindow native = new NativeWindow())
{
// Create temporary context and load WGL entry points
// First, set a compatible pixel format to the device context
// of the temp window
WinWindowInfo window = native.WindowInfo as WinWindowInfo;
WinGraphicsMode selector = new WinGraphicsMode(window.DeviceContext);
SetGraphicsModePFD(selector, GraphicsMode.Default, window);
// Then, construct a temporary context and load all wgl extensions
ContextHandle temp_context = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
if (temp_context != ContextHandle.Zero)
{
// Make the context current.
// Note: on some video cards and on some virtual machines, wglMakeCurrent
// may fail with an errorcode of 6 (INVALID_HANDLE). The suggested workaround
// is to call wglMakeCurrent in a loop until it succeeds.
// See https://www.opengl.org/discussion_boards/showthread.php/171058-nVidia-wglMakeCurrent()-multiple-threads
// Sigh...
for (int retry = 0; retry < 5; retry++)
{
bool success = Wgl.Imports.MakeCurrent(window.DeviceContext, temp_context.Handle);
if (!success)
{
Debug.Print("wglMakeCurrent failed with error: {0}. Retrying", Marshal.GetLastWin32Error());
System.Threading.Thread.Sleep(10);
}
else
{
// wglMakeCurrent succeeded, we are done here!
break;
}
}
// Load wgl extensions and destroy temporary context
Wgl.LoadAll();
Wgl.Imports.MakeCurrent(IntPtr.Zero, IntPtr.Zero);
Wgl.Imports.DeleteContext(temp_context.Handle);
}
else
{
Debug.Print("wglCreateContext failed with error: {0}", Marshal.GetLastWin32Error());
}
}
}
}
private static unsafe IntPtr RegisterForDeviceNotifications(WinWindowInfo parent)
{
BroadcastDeviceInterface type = new BroadcastDeviceInterface();
type.Size = BlittableValueType.StrideOf<BroadcastDeviceInterface>(type);
type.DeviceType = DeviceBroadcastType.INTERFACE;
type.ClassGuid = WinRawInput.DeviceInterfaceHid;
IntPtr num1 = Functions.RegisterDeviceNotification(parent.WindowHandle, new IntPtr((void*) &type), DeviceNotification.WINDOW_HANDLE);
int num2 = num1 == IntPtr.Zero ? 1 : 0;
return num1;
}
// Note: there is no relevant ARB function.
void SetGraphicsModePFD(GraphicsMode mode, WinWindowInfo window)
{
Debug.Write("Setting pixel format... ");
if (!mode.Index.HasValue)
throw new GraphicsModeException("Invalid or unsupported GraphicsMode.");
if (window == null) throw new ArgumentNullException("window", "Must point to a valid window.");
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
Functions.DescribePixelFormat(window.DeviceContext, (int)mode.Index.Value,
API.PixelFormatDescriptorSize, ref pfd);
Debug.WriteLine(mode.Index.ToString());
if (!Functions.SetPixelFormat(window.DeviceContext, (int)mode.Index.Value, ref pfd))
throw new GraphicsContextException(String.Format(
"Requested GraphicsMode not available. SetPixelFormat error: {0}", Marshal.GetLastWin32Error()));
}
private void SetGraphicsModePFD(GraphicsMode mode, WinWindowInfo window)
{
if (!mode.Index.HasValue)
throw new GraphicsModeException("Invalid or unsupported GraphicsMode.");
if (window == null)
throw new ArgumentNullException("window", "Must point to a valid window.");
PixelFormatDescriptor formatDescriptor = new PixelFormatDescriptor();
Functions.DescribePixelFormat(window.DeviceContext, (int) mode.Index.Value, (int) API.PixelFormatDescriptorSize, ref formatDescriptor);
if (!Functions.SetPixelFormat(window.DeviceContext, (int) mode.Index.Value, ref formatDescriptor))
throw new GraphicsContextException(string.Format("Requested GraphicsMode not available. SetPixelFormat error: {0}", (object) Marshal.GetLastWin32Error()));
}
GraphicsMode SelectGraphicsModePFD(ColorDepth color, int depth, int stencil, int samples, ColorDepth accum,
int buffers, bool stereo)
{
using (Control native_window = new Control())
using (WinWindowInfo window = new WinWindowInfo(native_window.Handle, null))
{
IntPtr deviceContext = ((WinWindowInfo)window).DeviceContext;
Debug.WriteLine(String.Format("Device context: {0}", deviceContext));
Debug.Write("Selecting pixel format... ");
PixelFormatDescriptor pixelFormat = new PixelFormatDescriptor();
pixelFormat.Size = API.PixelFormatDescriptorSize;
pixelFormat.Version = API.PixelFormatDescriptorVersion;
pixelFormat.Flags =
PixelFormatDescriptorFlags.SUPPORT_OPENGL |
PixelFormatDescriptorFlags.DRAW_TO_WINDOW;
pixelFormat.ColorBits = (byte)(color.Red + color.Green + color.Blue);
pixelFormat.PixelType = color.IsIndexed ? PixelType.INDEXED : PixelType.RGBA;
pixelFormat.RedBits = (byte)color.Red;
pixelFormat.GreenBits = (byte)color.Green;
pixelFormat.BlueBits = (byte)color.Blue;
pixelFormat.AlphaBits = (byte)color.Alpha;
if (accum.BitsPerPixel > 0)
{
pixelFormat.AccumBits = (byte)(accum.Red + accum.Green + accum.Blue);
pixelFormat.AccumRedBits = (byte)accum.Red;
pixelFormat.AccumGreenBits = (byte)accum.Green;
pixelFormat.AccumBlueBits = (byte)accum.Blue;
pixelFormat.AccumAlphaBits = (byte)accum.Alpha;
}
pixelFormat.DepthBits = (byte)depth;
pixelFormat.StencilBits = (byte)stencil;
if (depth <= 0)
{
pixelFormat.Flags |= PixelFormatDescriptorFlags.DEPTH_DONTCARE;
}
if (stereo)
{
pixelFormat.Flags |= PixelFormatDescriptorFlags.STEREO;
}
if (buffers > 1)
{
pixelFormat.Flags |= PixelFormatDescriptorFlags.DOUBLEBUFFER;
}
int pixel = Functions.ChoosePixelFormat(deviceContext, ref pixelFormat);
if (pixel == 0)
{
throw new GraphicsModeException("The requested GraphicsMode is not available.");
}
// Find out what we really got as a format:
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
pixelFormat.Size = API.PixelFormatDescriptorSize;
pixelFormat.Version = API.PixelFormatDescriptorVersion;
Functions.DescribePixelFormat(deviceContext, pixel, API.PixelFormatDescriptorSize, ref pfd);
GraphicsMode fmt = new GraphicsMode((IntPtr)pixel,
new ColorDepth(pfd.RedBits, pfd.GreenBits, pfd.BlueBits, pfd.AlphaBits),
pfd.DepthBits,
pfd.StencilBits,
0,
new ColorDepth(pfd.AccumBits),
(pfd.Flags & PixelFormatDescriptorFlags.DOUBLEBUFFER) != 0 ? 2 : 1,
(pfd.Flags & PixelFormatDescriptorFlags.STEREO) != 0);
return(fmt);
}
}
GraphicsMode SelectGraphicsModeARB(ColorDepth color, int depth, int stencil, int samples, ColorDepth accum,
int buffers, bool stereo)
{
using (INativeWindow native_window = new NativeWindow())
using (IGraphicsContext context = new GraphicsContext(new GraphicsMode(new ColorFormat(), 0, 0, 0, new ColorFormat(), 2, false), native_window.WindowInfo, 1, 0, GraphicsContextFlags.Default))
{
WinWindowInfo window = (WinWindowInfo)native_window.WindowInfo;
Debug.Write("Selecting pixel format (ARB)... ");
if (Wgl.Delegates.wglChoosePixelFormatARB == null || Wgl.Delegates.wglGetPixelFormatAttribivARB == null)
{
Debug.WriteLine("failed");
return(null);
}
int[] attribs = new int[]
{
(int)WGL_ARB_pixel_format.AccelerationArb,
(int)WGL_ARB_pixel_format.AlphaBitsArb,
(int)WGL_ARB_pixel_format.RedBitsArb,
(int)WGL_ARB_pixel_format.GreenBitsArb,
(int)WGL_ARB_pixel_format.BlueBitsArb,
(int)WGL_ARB_pixel_format.ColorBitsArb,
(int)WGL_ARB_pixel_format.DepthBitsArb,
(int)WGL_ARB_pixel_format.StencilBitsArb,
(int)WGL_ARB_multisample.SampleBuffersArb,
(int)WGL_ARB_multisample.SamplesArb,
(int)WGL_ARB_pixel_format.AccumAlphaBitsArb,
(int)WGL_ARB_pixel_format.AccumRedBitsArb,
(int)WGL_ARB_pixel_format.AccumGreenBitsArb,
(int)WGL_ARB_pixel_format.AccumBlueBitsArb,
(int)WGL_ARB_pixel_format.AccumBitsArb,
(int)WGL_ARB_pixel_format.DoubleBufferArb,
(int)WGL_ARB_pixel_format.StereoArb,
0
};
int[] values = new int[attribs.Length];
int[] attribs_values = new int[]
{
(int)WGL_ARB_pixel_format.AccelerationArb, (int)WGL_ARB_pixel_format.FullAccelerationArb,
(int)WGL_ARB_pixel_format.RedBitsArb, color.Red,
(int)WGL_ARB_pixel_format.GreenBitsArb, color.Green,
(int)WGL_ARB_pixel_format.BlueBitsArb, color.Blue,
(int)WGL_ARB_pixel_format.AlphaBitsArb, color.Alpha,
(int)WGL_ARB_pixel_format.ColorBitsArb, color.BitsPerPixel,
(int)WGL_ARB_pixel_format.DepthBitsArb, depth,
(int)WGL_ARB_pixel_format.StencilBitsArb, stencil,
(int)WGL_ARB_multisample.SampleBuffersArb, samples > 0 ? 1 : 0,
(int)WGL_ARB_multisample.SamplesArb, samples,
(int)WGL_ARB_pixel_format.AccumRedBitsArb, accum.Red,
(int)WGL_ARB_pixel_format.AccumGreenBitsArb, accum.Green,
(int)WGL_ARB_pixel_format.AccumBlueBitsArb, accum.Blue,
(int)WGL_ARB_pixel_format.AccumAlphaBitsArb, accum.Alpha,
(int)WGL_ARB_pixel_format.AccumBitsArb, accum.BitsPerPixel,
(int)WGL_ARB_pixel_format.DoubleBufferArb, 1,
(int)WGL_ARB_pixel_format.StereoArb, stereo ? 1 : 0,
0, 0
};
int[] pixel = new int[1], num_formats = new int[1];
Wgl.Arb.ChoosePixelFormat(window.DeviceContext, attribs_values, null, 1, pixel, num_formats);
if (num_formats[0] == 0 || pixel[0] == 0)
{
// Try again without an accumulator. Many modern cards cannot accelerate multisampled formats with accumulator buffers.
attribs_values[10 * 2 + 1] = attribs_values[11 * 2 + 1] = attribs_values[12 * 2 + 1] = attribs_values[13 * 2 + 1] = attribs_values[14 * 2 + 1] = 0;
Wgl.Arb.ChoosePixelFormat(window.DeviceContext, attribs_values, null, 1, pixel, num_formats);
}
if (num_formats[0] == 0 || pixel[0] == 0)
{
Debug.WriteLine("failed");
return(null);
}
// Find out what we really got as a format:
Wgl.Arb.GetPixelFormatAttrib(window.DeviceContext, pixel[0], 0, attribs.Length, attribs, values);
GraphicsMode mode = new GraphicsMode(new IntPtr(pixel[0]),
new ColorDepth(values[1], values[2], values[3], values[4]),
values[6],
values[7],
values[8] != 0 ? values[9] : 0,
new ColorDepth(values[10], values[11], values[12], values[13]),
values[15] == 1 ? 2 : 1,
values[16] == 1 ? true : false);
Debug.WriteLine("success!");
return(mode);
}
}
public WinGLContext(GraphicsMode format, WinWindowInfo window, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
// There are many ways this code can break when accessed by multiple threads. The biggest offender is
// the sharedContext stuff, which will only become valid *after* this constructor returns.
// The easiest solution is to serialize all context construction - hence the big lock, below.
lock (SyncRoot)
{
if (window == null)
throw new ArgumentNullException("window", "Must point to a valid window.");
if (window.Handle == IntPtr.Zero)
throw new ArgumentException("window", "Must be a valid window.");
Debug.Print("OpenGL will be bound to window:{0} on thread:{1}", window.Handle,
System.Threading.Thread.CurrentThread.ManagedThreadId);
lock (LoadLock)
{
ModeSelector = new WinGraphicsMode(window.DeviceContext);
Mode = SetGraphicsModePFD(ModeSelector, format, (WinWindowInfo)window);
if (Wgl.Delegates.wglCreateContextAttribsARB != null)
{
try
{
Debug.Write("Using WGL_ARB_create_context... ");
List<int> attributes = new List<int>();
attributes.Add((int)ArbCreateContext.MajorVersion);
attributes.Add(major);
attributes.Add((int)ArbCreateContext.MinorVersion);
attributes.Add(minor);
if (flags != 0)
{
attributes.Add((int)ArbCreateContext.ContextFlags);
attributes.Add((int)GetARBContextFlags(flags));
attributes.Add((int)ArbCreateContext.ProfileMask);
attributes.Add((int)GetARBContextProfile(flags));
}
// According to the docs, " <attribList> specifies a list of attributes for the context.
// The list consists of a sequence of <name,value> pairs terminated by the
// value 0. [...]"
// Is this a single 0, or a <0, 0> pair? (Defensive coding: add two zeroes just in case).
attributes.Add(0);
attributes.Add(0);
Handle = new ContextHandle(
Wgl.Arb.CreateContextAttribs(
window.DeviceContext,
sharedContext != null ? (sharedContext as IGraphicsContextInternal).Context.Handle : IntPtr.Zero,
attributes.ToArray()));
if (Handle == ContextHandle.Zero)
Debug.Print("failed. (Error: {0})", Marshal.GetLastWin32Error());
}
catch (EntryPointNotFoundException e) { Debug.Print(e.ToString()); }
catch (NullReferenceException e) { Debug.Print(e.ToString()); }
}
}
if (Handle == ContextHandle.Zero)
{
// Failed to create GL3-level context, fall back to GL2.
Debug.Write("Falling back to GL2... ");
Handle = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
if (Handle == ContextHandle.Zero)
Handle = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
if (Handle == ContextHandle.Zero)
throw new GraphicsContextException(
String.Format("Context creation failed. Wgl.CreateContext() error: {0}.",
Marshal.GetLastWin32Error()));
}
Debug.WriteLine(String.Format("success! (id: {0})", Handle));
// Todo: is this comment still true?
// On intel drivers, wgl entry points appear to change
// when creating multiple contexts. As a workaround,
// we reload Wgl entry points every time we create a
// new context - this solves the issue without any apparent
// side-effects (i.e. the old contexts can still be handled
// using the new entry points.)
// Sigh...
Wgl.LoadAll();
if (sharedContext != null)
{
Marshal.GetLastWin32Error();
Debug.Write(String.Format("Sharing state with context {0}: ", sharedContext));
bool result = Wgl.Imports.ShareLists((sharedContext as IGraphicsContextInternal).Context.Handle, Handle.Handle);
Debug.WriteLine(result ? "success!" : "failed with win32 error " + Marshal.GetLastWin32Error());
}
}
}
public WinGLNative(int x, int y, int width, int height, string title, GameWindowFlags options, DisplayDevice device)
{
lock (WinGLNative.SyncRoot)
{
this.WindowProcedureDelegate = new WindowProcedure(this.WindowProcedure);
this.window = new WinWindowInfo(this.CreateWindow(x, y, width, height, title, options, device, IntPtr.Zero), (WinWindowInfo) null);
this.child_window = new WinWindowInfo(this.CreateWindow(0, 0, this.ClientSize.Width, this.ClientSize.Height, title, options, device, this.window.WindowHandle), this.window);
this.exists = true;
this.keyboard.Description = "Standard Windows keyboard";
this.keyboard.NumberOfFunctionKeys = 12;
this.keyboard.NumberOfKeys = 101;
this.keyboard.NumberOfLeds = 3;
this.mouse.Description = "Standard Windows mouse";
this.mouse.NumberOfButtons = 3;
this.mouse.NumberOfWheels = 1;
this.keyboards.Add(this.keyboard);
this.mice.Add(this.mouse);
}
}
public WinGLContext(GraphicsMode format, WinWindowInfo window, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
// There are many ways this code can break when accessed by multiple threads. The biggest offender is
// the sharedContext stuff, which will only become valid *after* this constructor returns.
// The easiest solution is to serialize all context construction - hence the big lock, below.
lock (LoadLock)
{
if (window == null)
{
throw new ArgumentNullException("window", "Must point to a valid window.");
}
if (window.Handle == IntPtr.Zero)
{
throw new ArgumentException("window", "Must be a valid window.");
}
IntPtr current_context = Wgl.GetCurrentContext();
INativeWindow temp_window = null;
TemporaryContext temp_context = null;
try
{
if (current_context == IntPtr.Zero)
{
// Create temporary context to load WGL extensions
temp_window = new NativeWindow();
temp_context = new TemporaryContext(temp_window);
current_context = Wgl.GetCurrentContext();
if (current_context != IntPtr.Zero && current_context == temp_context.Context.Handle)
{
new Wgl().LoadEntryPoints();
}
}
Debug.Print("OpenGL will be bound to window:{0} on thread:{1}", window.Handle,
System.Threading.Thread.CurrentThread.ManagedThreadId);
ModeSelector = new WinGraphicsMode(window.DeviceContext);
Mode = SetGraphicsModePFD(ModeSelector, format, (WinWindowInfo)window);
if (Wgl.SupportsFunction("wglCreateContextAttribsARB"))
{
try
{
Debug.Write("Using WGL_ARB_create_context... ");
List <int> attributes = new List <int>();
attributes.Add((int)ArbCreateContext.MajorVersion);
attributes.Add(major);
attributes.Add((int)ArbCreateContext.MinorVersion);
attributes.Add(minor);
if (flags != 0)
{
attributes.Add((int)ArbCreateContext.ContextFlags);
attributes.Add((int)GetARBContextFlags(flags));
attributes.Add((int)ArbCreateContext.ProfileMask);
attributes.Add((int)GetARBContextProfile(flags));
}
// According to the docs, " <attribList> specifies a list of attributes for the context.
// The list consists of a sequence of <name,value> pairs terminated by the
// value 0. [...]"
// Is this a single 0, or a <0, 0> pair? (Defensive coding: add two zeroes just in case).
attributes.Add(0);
attributes.Add(0);
Handle = new ContextHandle(
Wgl.Arb.CreateContextAttribs(
window.DeviceContext,
sharedContext != null ? (sharedContext as IGraphicsContextInternal).Context.Handle : IntPtr.Zero,
attributes.ToArray()));
if (Handle == ContextHandle.Zero)
{
Debug.Print("failed. (Error: {0})", Marshal.GetLastWin32Error());
}
}
catch (Exception e) { Debug.Print(e.ToString()); }
}
if (Handle == ContextHandle.Zero)
{
// Failed to create GL3-level context, fall back to GL2.
Debug.Write("Falling back to GL2... ");
Handle = new ContextHandle(Wgl.CreateContext(window.DeviceContext));
if (Handle == ContextHandle.Zero)
{
Handle = new ContextHandle(Wgl.CreateContext(window.DeviceContext));
}
if (Handle == ContextHandle.Zero)
{
throw new GraphicsContextException(
String.Format("Context creation failed. Wgl.CreateContext() error: {0}.",
Marshal.GetLastWin32Error()));
}
}
Debug.WriteLine(String.Format("success! (id: {0})", Handle));
}
finally
{
if (temp_context != null)
{
temp_context.Dispose();
temp_context = null;
}
if (temp_window != null)
{
temp_window.Dispose();
temp_window = null;
}
}
}
// Todo: is this comment still true?
// On intel drivers, wgl entry points appear to change
// when creating multiple contexts. As a workaround,
// we reload Wgl entry points every time we create a
// new context - this solves the issue without any apparent
// side-effects (i.e. the old contexts can still be handled
// using the new entry points.)
// Sigh...
MakeCurrent(window);
new Wgl().LoadEntryPoints();
if (sharedContext != null)
{
Marshal.GetLastWin32Error();
Debug.Write(String.Format("Sharing state with context {0}: ", sharedContext));
bool result = Wgl.ShareLists((sharedContext as IGraphicsContextInternal).Context.Handle, Handle.Handle);
Debug.WriteLine(result ? "success!" : "failed with win32 error " + Marshal.GetLastWin32Error());
}
}
/// <summary>
/// Constructs a new instance with the specified window handle and paren.t
/// </summary>
/// <param name="handle">The window handle for this instance.</param>
/// <param name="parent">The parent window of this instance (may be null).</param>
public WinWindowInfo(IntPtr handle, WinWindowInfo parent)
{
this.handle = handle;
this.parent = parent;
}
public WinGLContext(GraphicsMode format, WinWindowInfo window, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
if (window == null)
{
throw new ArgumentNullException("window", "Must point to a valid window.");
}
if (window.WindowHandle == IntPtr.Zero)
{
throw new ArgumentException("window", "Must be a valid window.");
}
Mode = format;
Debug.Print("OpenGL will be bound to handle: {0}", window.WindowHandle);
Debug.Write("Setting pixel format... ");
this.SetGraphicsModePFD(format, (WinWindowInfo)window);
if (!wgl_loaded)
{
// We need to create a temp context in order to load wgl extensions (e.g. for multisampling or GL3).
// We cannot rely on OpenTK.Platform.Wgl until we create the context and call Wgl.LoadAll().
Debug.Print("Creating temporary context for wgl extensions.");
ContextHandle temp_context = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
Wgl.Imports.MakeCurrent(window.DeviceContext, temp_context.Handle);
Wgl.LoadAll();
Wgl.MakeCurrent(IntPtr.Zero, IntPtr.Zero);
Wgl.DeleteContext(temp_context.Handle);
wgl_loaded = true;
}
if (Wgl.Delegates.wglCreateContextAttribsARB != null)
{
try
{
Debug.Write("Using WGL_ARB_create_context... ");
List <int> attributes = new List <int>();
attributes.Add((int)ArbCreateContext.MajorVersion);
attributes.Add(major);
attributes.Add((int)ArbCreateContext.MinorVersion);
attributes.Add(minor);
if (flags != 0)
{
attributes.Add((int)ArbCreateContext.Flags);
attributes.Add((int)flags);
}
attributes.Add(0);
Handle = new ContextHandle(
Wgl.Arb.CreateContextAttribs(
window.DeviceContext,
sharedContext != null ? (sharedContext as IGraphicsContextInternal).Context.Handle : IntPtr.Zero,
attributes.ToArray()));
if (Handle == ContextHandle.Zero)
{
Debug.Print("failed. (Error: {0})", Marshal.GetLastWin32Error());
}
else
{
Debug.Print("success!");
}
}
catch (EntryPointNotFoundException e) { Debug.Print(e.ToString()); }
catch (NullReferenceException e) { Debug.Print(e.ToString()); }
}
if (Handle == ContextHandle.Zero)
{
// Failed to create GL3-level context, fall back to GL2.
Debug.Write("Falling back to GL2... ");
Handle = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
if (Handle == ContextHandle.Zero)
{
Handle = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
}
if (Handle == ContextHandle.Zero)
{
throw new GraphicsContextException(
String.Format("Context creation failed. Wgl.CreateContext() error: {0}.",
Marshal.GetLastWin32Error()));
}
}
Debug.WriteLine(String.Format("success! (id: {0})", Handle));
if (sharedContext != null)
{
Debug.Print("Sharing state with context {0}", sharedContext.ToString());
Wgl.Imports.ShareLists((sharedContext as IGraphicsContextInternal).Context.Handle, Handle.Handle);
}
}
public WinGLNative(int x, int y, int width, int height, string title, GameWindowFlags options, DisplayDevice device)
{
lock (SyncRoot)
{
// This is the main window procedure callback. We need the callback in order to create the window, so
// don't move it below the CreateWindow calls.
WindowProcedureDelegate = WindowProcedure;
//// This timer callback is called periodically when the window enters a sizing / moving modal loop.
//ModalLoopCallback = delegate(IntPtr handle, WindowMessage msg, UIntPtr eventId, int time)
//{
// // Todo: find a way to notify the frontend that it should process queued up UpdateFrame/RenderFrame events.
// if (Move != null)
// Move(this, EventArgs.Empty);
//};
int scale_width = width;
int scale_height = height;
int scale_x = x;
int scale_y = y;
if (Toolkit.Options.EnableHighResolution)
{
// CreateWindow takes values in pixels.
// According to the high-dpi guidelines,
// we need to scale these values by the
// current DPI.
// Search MSDN for "How to Ensure That
// Your Application Displays Properly on
// High-DPI Displays"
scale_width = ScaleX(width);
scale_height = ScaleY(height);
scale_x = ScaleX(x);
scale_y = ScaleY(y);
}
// To avoid issues with Ati drivers on Windows 6+ with compositing enabled, the context will not be
// bound to the top-level window, but rather to a child window docked in the parent.
window = new WinWindowInfo(
CreateWindow(
scale_x, scale_y, scale_width, scale_height,
title, options, device, IntPtr.Zero),
null);
child_window = new WinWindowInfo(
CreateWindow(
0, 0, ClientSize.Width, ClientSize.Height,
title, options, device, window.Handle),
window);
exists = true;
keyboard.Description = "Standard Windows keyboard";
keyboard.NumberOfFunctionKeys = 12;
keyboard.NumberOfKeys = 101;
keyboard.NumberOfLeds = 3;
mouse.Description = "Standard Windows mouse";
mouse.NumberOfButtons = 3;
mouse.NumberOfWheels = 1;
keyboards.Add(keyboard);
mice.Add(mouse);
}
}
// Note: there is no relevant ARB function.
internal static GraphicsMode SetGraphicsModePFD(WinGraphicsMode mode_selector,
GraphicsMode mode, WinWindowInfo window)
{
Debug.Write("Setting pixel format... ");
if (window == null)
throw new ArgumentNullException("window", "Must point to a valid window.");
if (!mode.Index.HasValue)
{
mode = mode_selector.SelectGraphicsMode(
mode.ColorFormat, mode.Depth, mode.Stencil,
mode.Samples, mode.AccumulatorFormat,
mode.Buffers, mode.Stereo);
}
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
Functions.DescribePixelFormat(
window.DeviceContext, (int)mode.Index.Value,
API.PixelFormatDescriptorSize, ref pfd);
Debug.WriteLine(mode.Index.ToString());
if (!Functions.SetPixelFormat(window.DeviceContext, (int)mode.Index.Value, ref pfd))
{
throw new GraphicsContextException(String.Format(
"Requested GraphicsMode not available. SetPixelFormat error: {0}",
Marshal.GetLastWin32Error()));
}
return mode;
}
public WinGLContext(ContextHandle handle, WinWindowInfo window, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
if (handle == ContextHandle.Zero)
throw new ArgumentException("handle");
if (window == null)
throw new ArgumentNullException("window");
Handle = handle;
}
GraphicsMode SelectGraphicsModePFD(ColorDepth color, int depth, int stencil, int samples, ColorDepth accum,
int buffers, bool stereo)
{
using (Control native_window = new Control())
using (WinWindowInfo window = new WinWindowInfo(native_window.Handle, null))
{
IntPtr deviceContext = ((WinWindowInfo)window).DeviceContext;
Debug.WriteLine(String.Format("Device context: {0}", deviceContext));
Debug.Write("Selecting pixel format... ");
PixelFormatDescriptor pixelFormat = new PixelFormatDescriptor();
pixelFormat.Size = API.PixelFormatDescriptorSize;
pixelFormat.Version = API.PixelFormatDescriptorVersion;
pixelFormat.Flags =
PixelFormatDescriptorFlags.SUPPORT_OPENGL |
PixelFormatDescriptorFlags.DRAW_TO_WINDOW;
pixelFormat.ColorBits = (byte)(color.Red + color.Green + color.Blue);
pixelFormat.PixelType = color.IsIndexed ? PixelType.INDEXED : PixelType.RGBA;
pixelFormat.RedBits = (byte)color.Red;
pixelFormat.GreenBits = (byte)color.Green;
pixelFormat.BlueBits = (byte)color.Blue;
pixelFormat.AlphaBits = (byte)color.Alpha;
if (accum.BitsPerPixel > 0)
{
pixelFormat.AccumBits = (byte)(accum.Red + accum.Green + accum.Blue);
pixelFormat.AccumRedBits = (byte)accum.Red;
pixelFormat.AccumGreenBits = (byte)accum.Green;
pixelFormat.AccumBlueBits = (byte)accum.Blue;
pixelFormat.AccumAlphaBits = (byte)accum.Alpha;
}
pixelFormat.DepthBits = (byte)depth;
pixelFormat.StencilBits = (byte)stencil;
if (depth <= 0) pixelFormat.Flags |= PixelFormatDescriptorFlags.DEPTH_DONTCARE;
if (stereo) pixelFormat.Flags |= PixelFormatDescriptorFlags.STEREO;
if (buffers > 1) pixelFormat.Flags |= PixelFormatDescriptorFlags.DOUBLEBUFFER;
int pixel = Functions.ChoosePixelFormat(deviceContext, ref pixelFormat);
if (pixel == 0)
throw new GraphicsModeException("The requested GraphicsMode is not available.");
// Find out what we really got as a format:
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
pixelFormat.Size = API.PixelFormatDescriptorSize;
pixelFormat.Version = API.PixelFormatDescriptorVersion;
Functions.DescribePixelFormat(deviceContext, pixel, API.PixelFormatDescriptorSize, ref pfd);
GraphicsMode fmt = new GraphicsMode((IntPtr)pixel,
new ColorDepth(pfd.RedBits, pfd.GreenBits, pfd.BlueBits, pfd.AlphaBits),
pfd.DepthBits,
pfd.StencilBits,
0,
new ColorDepth(pfd.AccumBits),
(pfd.Flags & PixelFormatDescriptorFlags.DOUBLEBUFFER) != 0 ? 2 : 1,
(pfd.Flags & PixelFormatDescriptorFlags.STEREO) != 0);
return fmt;
}
}
public WinGLContext(GraphicsMode format, WinWindowInfo window, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
// There are many ways this code can break when accessed by multiple threads. The biggest offender is
// the sharedContext stuff, which will only become valid *after* this constructor returns.
// The easiest solution is to serialize all context construction - hence the big lock, below.
lock (SyncRoot)
{
if (window == null)
throw new ArgumentNullException("window", "Must point to a valid window.");
if (window.WindowHandle == IntPtr.Zero)
throw new ArgumentException("window", "Must be a valid window.");
Mode = format;
Debug.Print("OpenGL will be bound to window:{0} on thread:{1}", window.WindowHandle,
System.Threading.Thread.CurrentThread.ManagedThreadId);
this.SetGraphicsModePFD(format, (WinWindowInfo)window);
lock (LoadLock)
{
if (!wgl_loaded)
{
// We need to create a temp context in order to load wgl extensions (e.g. for multisampling or GL3).
// We cannot rely on OpenTK.Platform.Wgl until we create the context and call Wgl.LoadAll().
Debug.Print("Creating temporary context for wgl extensions.");
ContextHandle temp_context = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
Wgl.Imports.MakeCurrent(window.DeviceContext, temp_context.Handle);
Wgl.LoadAll();
Wgl.Imports.MakeCurrent(IntPtr.Zero, IntPtr.Zero);
Wgl.Imports.DeleteContext(temp_context.Handle);
wgl_loaded = true;
}
if (Wgl.Delegates.wglCreateContextAttribsARB != null)
{
try
{
Debug.Write("Using WGL_ARB_create_context... ");
List<int> attributes = new List<int>();
attributes.Add((int)ArbCreateContext.MajorVersion);
attributes.Add(major);
attributes.Add((int)ArbCreateContext.MinorVersion);
attributes.Add(minor);
if (flags != 0)
{
attributes.Add((int)ArbCreateContext.Flags);
#warning "This is not entirely correct: Embedded is not a valid flag! We need to add a GetARBContextFlags(GraphicsContextFlags) method."
attributes.Add((int)flags);
}
// According to the docs, " <attribList> specifies a list of attributes for the context.
// The list consists of a sequence of <name,value> pairs terminated by the
// value 0. [...]"
// Is this a single 0, or a <0, 0> pair? (Defensive coding: add two zeroes just in case).
attributes.Add(0);
attributes.Add(0);
Handle = new ContextHandle(
Wgl.Arb.CreateContextAttribs(
window.DeviceContext,
sharedContext != null ? (sharedContext as IGraphicsContextInternal).Context.Handle : IntPtr.Zero,
attributes.ToArray()));
if (Handle == ContextHandle.Zero)
Debug.Print("failed. (Error: {0})", Marshal.GetLastWin32Error());
}
catch (EntryPointNotFoundException e) { Debug.Print(e.ToString()); }
catch (NullReferenceException e) { Debug.Print(e.ToString()); }
}
}
if (Handle == ContextHandle.Zero)
{
// Failed to create GL3-level context, fall back to GL2.
Debug.Write("Falling back to GL2... ");
Handle = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
if (Handle == ContextHandle.Zero)
Handle = new ContextHandle(Wgl.Imports.CreateContext(window.DeviceContext));
if (Handle == ContextHandle.Zero)
throw new GraphicsContextException(
String.Format("Context creation failed. Wgl.CreateContext() error: {0}.",
Marshal.GetLastWin32Error()));
}
Debug.WriteLine(String.Format("success! (id: {0})", Handle));
if (sharedContext != null)
{
Marshal.GetLastWin32Error();
Debug.Write(String.Format("Sharing state with context {0}: ", sharedContext));
bool result = Wgl.Imports.ShareLists((sharedContext as IGraphicsContextInternal).Context.Handle, Handle.Handle);
Debug.WriteLine(result ? "success!" : "failed with win32 error " + Marshal.GetLastWin32Error());
}
}
}
public WinDXContext(GraphicsMode format, WinWindowInfo window)
{
Debug.Print( "doing nothing" );
}
