update egl properties for wrapped texture.

src/Avalonia.OpenGL/Angle/AngleWin32EglDisplay.cs

@@ -78,11 +78,11 @@ namespace Avalonia.OpenGL.Angle
             return d3dDeviceHandle;
         }
 
-        public EglSurface WrapDirect3D11Texture(IntPtr handle, int offsetX, int offsetY)
+        public EglSurface WrapDirect3D11Texture(IntPtr handle, int offsetX, int offsetY, int width, int height)
         {
             if (PlatformApi != AngleOptions.PlatformApi.DirectX11)
                 throw new InvalidOperationException("Current platform API is " + PlatformApi);
-            return CreatePBufferFromClientBuffer(EGL_D3D_TEXTURE_ANGLE, handle, new[] { EGL_TEXTURE_OFFSET_X_ANGLE, offsetX, EGL_TEXTURE_OFFSET_Y_ANGLE, offsetY, EGL_NONE, EGL_NONE });
+            return CreatePBufferFromClientBuffer(EGL_D3D_TEXTURE_ANGLE, handle, new[] { EGL_WIDTH, width, EGL_HEIGHT, height, EGL_FLEXIBLE_SURFACE_COMPATIBILITY_SUPPORTED_ANGLE, EGL_TRUE, EGL_TEXTURE_OFFSET_X_ANGLE, offsetX, EGL_TEXTURE_OFFSET_Y_ANGLE, offsetY, EGL_NONE });
         }
     }
 }

src/Avalonia.OpenGL/EglConsts.cs

@@ -209,5 +209,7 @@ namespace Avalonia.OpenGL
 
         public const int EGL_TEXTURE_OFFSET_X_ANGLE = 0x3490;
         public const int EGL_TEXTURE_OFFSET_Y_ANGLE = 0x3491;
+
+        public const int EGL_FLEXIBLE_SURFACE_COMPATIBILITY_SUPPORTED_ANGLE = 0x33A6;
     }
 }

src/Windows/Avalonia.Win32/Composition/CompositionHost.cs

@@ -87,14 +87,14 @@ namespace Avalonia.Win32
                 if (lastSize.X != _info.Size.Width || lastSize.Y != _info.Size.Height)
                 {
                     lastSize = new POINT { X = _info.Size.Width, Y = _info.Size.Height };
-                   // _surfaceInterop.Resize(lastSize);
+                    _surfaceInterop.Resize(lastSize);
                 }                
                 _surfaceInterop.BeginDraw(
                     ref updateRect,
                     ref iid,
                     out IntPtr texture, ref offset);
 
-                var surface = (_display as AngleWin32EglDisplay).WrapDirect3D11Texture(texture, offset.X, offset.Y);
+                var surface = (_display as AngleWin32EglDisplay).WrapDirect3D11Texture(texture, offset.X, offset.Y, _info.Size.Width, _info.Size.Height);
 
                 return base.BeginDraw(surface, _info, () => { _surfaceInterop.EndDraw(); Marshal.Release(texture); surface.Dispose();  }, true);
             }