public void InitializeD3D11()
{
DXInteropHelper.InitializeD3D(D3D_DRIVER_TYPE.D3D_DRIVER_TYPE_HARDWARE, out d3d11Device, D3D11_CREATE_DEVICE_FLAG.D3D11_CREATE_DEVICE_BGRA_SUPPORT);
DXInteropHelper.InitializeD2D(d3d11Device, out d2dDeviceContext);
dxgiDevice = DXInteropHelper.GetDXGIDevice(d3d11Device);
dxgiSwapChain = DXInteropHelper.CreateSwapChainForComposition(d3d11Device, (int)Window.Current.Bounds.Width, (int)Window.Current.Bounds.Height, true);
}
// scbp user is expected to listen for the window size/orientation changes and always create 2x1 swapchain for Dflip.
void Window_SizeChanged(object sender, WindowSizeChangedEventArgs e)
{
//DisplayProperties.CurrentOrienation takes sometime to return correct orientation value. As a workaround, delaying this by .5 sec.
DispatcherTimer timer = new DispatcherTimer()
{
Interval = TimeSpan.FromMilliseconds(500)
};
timer.Tick += (s1, e1) =>
{
dxgiSwapChain = DXInteropHelper.CreateSwapChainForComposition(d3d11Device, (int)e.Size.Width, (int)e.Size.Height, true);
customSCBP.SetSwapChain(dxgiSwapChain);
timer.Stop();
};
timer.Start();
}
private SwapChainPanelInterop CreateSCPContent(ElementCompositeMode compositeMode, DXContentType dxContentType, float[] color, Rect?rect, int height = 200)
{
double scpWidth = scrollViewer.Width;
double scpHeight = height;
SwapChainPanel scp = new SwapChainPanel()
{
Width = scpWidth, Height = scpHeight, CompositeMode = compositeMode
};
SwapChainPanelInterop scpInterop = scp;
IDXGISwapChain1 swapChain = DXInteropHelper.CreateSwapChainForComposition(d3d11Device, (int)scpWidth, (int)scpHeight, false);
scpInterop.SetSwapChain(swapChain);
DrawDXContent(dxContentType, scpInterop, color, rect);
scpInterop.CopyBuffers(1, 0);
float compositionScaleX = 1; float compositionScaleY = 1;
scp.CompositionScaleChanged += (s, e) =>
{
compositionScaleX = scp.CompositionScaleX;
compositionScaleY = scp.CompositionScaleY;
try
{
scpInterop.ResizeBuffers((int)scp.Width, (int)scp.Height);
}
catch (System.Runtime.InteropServices.COMException ex)
{
if (ex.HResult == unchecked ((int)0x887A0005)) /* DXGI_ERROR_DEVICE_REMOVED */
{
swapChain = DXInteropHelper.CreateSwapChainForComposition(d3d11Device, (int)scp.Width, (int)scp.Height, false);
scpInterop.SetSwapChain(swapChain);
}
else
{
throw ex;
}
}
DrawDXContent(dxContentType, scpInterop, color, rect);
scpInterop.CopyBuffers(1, 0);
};
StackPanel scpStackPanel = new StackPanel()
{
Orientation = Orientation.Vertical
};
StackPanel sp = new StackPanel()
{
Orientation = Orientation.Horizontal
};
TextBox scpWidthTB = new TextBox()
{
Height = 60, Header = "SCPWidth"
};
TextBox scpHeightTB = new TextBox()
{
Height = 60, Header = "SCPHeight"
};
Binding binding = new Binding()
{
Source = scp, Path = new PropertyPath("Width"), Mode = BindingMode.TwoWay
};
scpWidthTB.SetBinding(TextBox.TextProperty, binding);
binding = new Binding()
{
Source = scp, Path = new PropertyPath("Height"), Mode = BindingMode.TwoWay
};
scpHeightTB.SetBinding(TextBox.TextProperty, binding);
sp.Children.Add(scpWidthTB);
sp.Children.Add(scpHeightTB);
scpStackPanel.Children.Add(sp);
StackPanel sp1 = new StackPanel()
{
Orientation = Orientation.Horizontal
};
sp1.Children.Add(new TextBlock()
{
Text = "CoreInput"
});
CheckBox coreinputEnabledCB = new CheckBox()
{
IsChecked = true, IsThreeState = false
};
sp1.Children.Add(coreinputEnabledCB);
sp1.Children.Add(new TextBlock()
{
Text = "Touch"
});
CheckBox coreinputTouchCB = new CheckBox()
{
IsChecked = true, IsThreeState = false
};
sp1.Children.Add(coreinputTouchCB);
sp1.Children.Add(new TextBlock()
{
Text = "Mouse"
});
CheckBox coreinputMouseCB = new CheckBox()
{
IsChecked = true, IsThreeState = false
};
sp1.Children.Add(coreinputMouseCB);
scpStackPanel.Children.Add(sp1);
scp.Children.Add(scpStackPanel);
bool enableTouchCoreInput = true;
bool enableMouseCoreInput = true;
CoreDispatcher coreInputDispatcher = null;
CoreDispatcher xamlDispatcher = Window.Current.Dispatcher;
Action coreInputThreadAction = () =>
{
CoreInputDeviceTypes deviceTypes = CoreInputDeviceTypes.Pen;
if (enableTouchCoreInput)
{
deviceTypes |= CoreInputDeviceTypes.Touch;
}
if (enableMouseCoreInput)
{
deviceTypes |= CoreInputDeviceTypes.Mouse;
}
CoreIndependentInputSource coreInput = scp.CreateCoreIndependentInputSource(deviceTypes);
coreInputDispatcher = coreInput.Dispatcher;
xamlDispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
coreinputEnabledCB.Unchecked += (s4, e4) =>
{
coreInputDispatcher.RunAsync(CoreDispatcherPriority.High, () => { coreInput.IsInputEnabled = false; });
};
coreinputEnabledCB.Checked += (s4, e4) =>
{
coreInputDispatcher.RunAsync(CoreDispatcherPriority.High, () => { coreInput.IsInputEnabled = true; });
};
});
coreInput.PointerPressed += (s, e) =>
{
scpInterop.UpdateSurfaceWithD2DEllipse(new Point(e.CurrentPoint.Position.X * compositionScaleX, e.CurrentPoint.Position.Y * compositionScaleY), 10.0f, new float[] { 1f, 0f, 1f, 1f }, true /*copyBuffers*/);
};
coreInput.PointerMoved += (s1, e1) =>
{
scpInterop.UpdateSurfaceWithD2DEllipse(new Point(e1.CurrentPoint.Position.X * compositionScaleX, e1.CurrentPoint.Position.Y * compositionScaleY), 10.0f, new float[] { 0f, 0f, 1f, 1f }, true /*copyBuffers*/);
};
coreInput.PointerReleased += (s2, e2) =>
{
scpInterop.UpdateSurfaceWithD2DEllipse(new Point(e2.CurrentPoint.Position.X * compositionScaleX, e2.CurrentPoint.Position.Y * compositionScaleY), 10.0f, new float[] { 0f, 0f, 1f, 1f }, true /*copyBuffers*/);
// Marking this unhandled so that AppBar can be invoked by letting the right click go through CoreInput which then raises WM_ContextMenu
// that calls handles in xaml framework which marshalles the call to the UIthread to toggle AppBar.
e2.Handled = false;
};
coreInputDispatcher.ProcessEvents(CoreProcessEventsOption.ProcessUntilQuit);
};
Action startCoreInputThread = () =>
{
Windows.System.Threading.ThreadPool.RunAsync((asyncAction) =>
{
if (coreInputDispatcher != null)
{
coreInputDispatcher.StopProcessEvents();
coreInputDispatcher = null;
}
coreInputThreadAction();
}, WorkItemPriority.High);
};
startCoreInputThread();
coreinputTouchCB.Checked += (x, y) => { enableTouchCoreInput = true; startCoreInputThread(); };
coreinputTouchCB.Unchecked += (x, y) => { enableTouchCoreInput = false; startCoreInputThread(); };
coreinputMouseCB.Checked += (x, y) => { enableMouseCoreInput = true; scp.CompositeMode = (ElementCompositeMode)(((int)scp.CompositeMode + 1) % 4); startCoreInputThread(); };
coreinputMouseCB.Unchecked += (x, y) => { enableMouseCoreInput = false; startCoreInputThread(); };
return(scpInterop);
}