public void Dispose()
{
lock (this.object_0)
{
if (!(this.intptr_2 != IntPtr.Zero))
{
return;
}
if (WGL.wglDeleteContext(this.intptr_2) == 0)
{
int lastWin32Error = Marshal.GetLastWin32Error();
throw new Win32Exception(lastWin32Error, string.Format("OpenGL DeleteContext call was not successful, error code: {0}", (object)lastWin32Error));
}
this.intptr_2 = IntPtr.Zero;
if (this.bool_0)
{
if (WGL.DeleteDC(this.intptr_1) == 0)
{
int lastWin32Error = Marshal.GetLastWin32Error();
throw new Win32Exception(lastWin32Error, string.Format("OpenGL DeleteDC call was not successful, error code: {0}", (object)lastWin32Error));
}
}
else if (WGL.ReleaseDC(this.intptr_0, this.intptr_1) == 0)
{
int lastWin32Error = Marshal.GetLastWin32Error();
throw new Win32Exception(lastWin32Error, string.Format("OpenGL ReleaseDC call was not successful, error code: {0}", (object)lastWin32Error));
}
this.intptr_0 = IntPtr.Zero;
this.intptr_1 = IntPtr.Zero;
this.int_0 = 0;
}
}
private WinGlContext(IntPtr winHandle)
{
_hWnd = winHandle;
RegisterClassOnce();
var width = 512;
var height = 512;
if (winHandle == IntPtr.Zero)
{
var style = WindowStyle.OverlappedWindow | WindowStyle.ClipChildren | WindowStyle.ClipSiblings;
var exStyle = ParentStyleEx;
var rect = new Rect
{
Left = 0,
Top = 0,
Right = width,
Bottom = height
};
AdjustWindowRectEx(ref rect, style, false, exStyle);
var windowName = Marshal.StringToHGlobalAuto("Title");
_hWnd = CreateWindowEx(
exStyle, ClassName, windowName, style,
rect.Left, rect.Top, rect.Right - rect.Left, rect.Bottom - rect.Top,
IntPtr.Zero, IntPtr.Zero, Instance, IntPtr.Zero
);
if (_hWnd == IntPtr.Zero)
{
throw new Exception($"Failed to create window. Error: {Marshal.GetLastWin32Error()}");
}
}
_dc = GetDC(_hWnd);
var pfd = new PixelFormatDescriptor();
pfd.Size = (short)sizeof(PixelFormatDescriptor);
pfd.Version = 1;
pfd.Flags = PixelFormatDescriptorFlags.DrawToWindow | PixelFormatDescriptorFlags.SupportOpengl |
PixelFormatDescriptorFlags.Doublebuffer;
pfd.LayerType = 0;
pfd.PixelType = PixelType.RGBA; // PFD_TYPE_RGBA
//pfd.ColorBits = 32;
pfd.ColorBits = 24;
pfd.DepthBits = 16;
pfd.StencilBits = 8;
var pf = ChoosePixelFormat(_dc, &pfd);
//pf = 10;
if (!SetPixelFormat(_dc, pf, &pfd))
{
Console.WriteLine("Error SetPixelFormat failed.");
}
_context = Wgl.wglCreateContext(_dc);
if (_sharedContext != IntPtr.Zero)
{
RetryShareLists:
//Console.WriteLine("SharedContext!"); Console.ReadKey();
if (!Wgl.wglShareLists(_sharedContext, _context))
{
var lastError = Platform.InternalWindows.GetLastError();
Console.WriteLine($"Can't share lists {lastError}");
if (lastError == 170) // BUSY
{
Console.WriteLine($"-- Due to Busy. RETRY.");
Thread.Sleep(10);
goto RetryShareLists;
}
Debugger.Break();
throw new InvalidOperationException($"Can't share lists {lastError}");
}
}
MakeCurrent();
Console.Out.WriteLineColored(ConsoleColor.Yellow, "Version:{0}.{1}", GL.glGetInteger(GL.GL_MAJOR_VERSION),
GL.glGetInteger(GL.GL_MINOR_VERSION));
DynamicLibraryFactory.MapLibraryToType <Extension>(new DynamicLibraryGl());
GL.LoadAllOnce();
#if false
if (Extension.wglCreateContextAttribsARB != null)
{
ReleaseCurrent();
WGL.wglDeleteContext(this.Context);
fixed(int *AttribListPtr =
new int[] { (int)ArbCreateContext.MajorVersion, 3, (int)ArbCreateContext.MinorVersion, 1, 0, 0 })
{
this.Context = Extension.wglCreateContextAttribsARB(DC, SharedContext, AttribListPtr);
}
if (this.Context == IntPtr.Zero)
{
throw(new Exception("Error creating context"));
}
MakeCurrent();
Console.WriteLine("OpenGL Version: {0}", Marshal.PtrToStringAnsi(new IntPtr(GL.glGetString(GL.GL_VERSION))));
//Console.ReadKey();
}
#endif
if (_sharedContext == IntPtr.Zero)
{
_sharedContext = _context;
}
if (Extension.WglSwapIntervalExt != null)
{
Extension.WglSwapIntervalExt(0);
}
//RECT clientRect;
//GetClientRect(hWnd, &clientRect);
}