void CreateSwapChain()
{
SwapChainDescription1 swapChainDescription = new SwapChainDescription1()
{
Usage = Usage.RenderTargetOutput,
BufferCount = 2,
SwapEffect = SwapEffect.FlipSequential,
Stereo = false,
SampleDescription = new SampleDescription(1, 0),
Scaling = Scaling.Stretch,
Format = Format.R8G8B8A8_UNorm,
Height = 1080,
Width = 1920,
};
// 建立SwapChain
using (SharpDX.DXGI.Device3 dxgiDevice3 = D3D11Device.QueryInterface <SharpDX.DXGI.Device3>()) {
using (Factory2 dxgiFactory2 = dxgiDevice3.Adapter.GetParent <Factory2>()) {
swapChain1 = new SwapChain1(dxgiFactory2, D3D11Device, ref swapChainDescription);
swapChain1.QueryInterface <SwapChain>();
}
}
// 把Xaml的SwapChainPanel與DirectX的SwapChain連結起來
using (ISwapChainPanelNative swapChainPanelNative = ComObject.As <ISwapChainPanelNative>(this)) {
swapChainPanelNative.SwapChain = swapChain1;
SetViewport();
}
}
/// <summary>
/// Unloads all resources.
/// </summary>
internal void UnloadResources()
{
m_factory = CommonTools.DisposeObject(m_factory);
m_adapter = CommonTools.DisposeObject(m_adapter);
#if UNIVERSAL
m_device = CommonTools.DisposeObject(m_device);
#endif
}
private void Current_Suspending(object sender, Windows.ApplicationModel.SuspendingEventArgs e)
{
if (isDXInitialized)
{
this.deviceContext.ClearState();
using (DXGI.Device3 dxgiDevice3 = this.device.QueryInterface <DXGI.Device3>())
dxgiDevice3.Trim();
}
}
/// <summary>
/// Initializes a new instance of the <see cref="DeviceHandlerDXGI"/> class.
/// </summary>
internal DeviceHandlerDXGI(DXGI.Adapter1 adapter, D3D11.Device device)
{
#if UNIVERSAL
m_device = device.QueryInterface <DXGI.Device3>();
#endif
m_adapter = adapter;
m_factory = m_adapter.GetParent <DXGI.Factory2>();
}
public void CreateDirectXSwapChain()
{
SwapChainDescription1 swapChainDescription = new SwapChainDescription1()
{
// Want Transparency.
AlphaMode = SharpDX.DXGI.AlphaMode.Premultiplied,
// Double buffer.
BufferCount = 2,
// BGRA 32bit pixel format.
Format = Format.B8G8R8A8_UNorm,
// Unlike in CoreWindow swap chains, the dimensions must be set.
Height = (int)(ActualHeight),
Width = (int)(ActualWidth),
// Default multisampling.
SampleDescription = new SampleDescription(1, 0),
// In case the control is resized, stretch the swap chain accordingly.
Scaling = Scaling.Stretch,
// No support for stereo display.
Stereo = false,
// Sequential displaying for double buffering.
SwapEffect = SwapEffect.FlipSequential,
// This swapchain is going to be used as the back buffer.
Usage = Usage.BackBuffer | Usage.RenderTargetOutput,
};
using (SharpDX.Direct3D11.Device defaultDevice = new SharpDX.Direct3D11.Device(SharpDX.Direct3D.DriverType.Hardware, SharpDX.Direct3D11.DeviceCreationFlags.BgraSupport))
{
this.device = defaultDevice.QueryInterface <SharpDX.Direct3D11.Device2>();
}
// Save the context instance
//this.d3d11DC = this.device.ImmediateContext2;
using (SharpDX.DXGI.Device3 dxgiDevice3 = device.QueryInterface <SharpDX.DXGI.Device3>())
{
using (SharpDX.DXGI.Factory3 dxgiFactory3 = dxgiDevice3.Adapter.GetParent <SharpDX.DXGI.Factory3>())
{
using (SwapChain1 swapChain1 = new SwapChain1(dxgiFactory3, device, ref swapChainDescription))
{
swapChain = swapChain1.QueryInterface <SwapChain2>();
}
}
}
using (ISwapChainPanelNative nativeObject = ComObject.As <ISwapChainPanelNative>(this))
{
nativeObject.SwapChain = swapChain;
}
backBufferTexture = SharpDX.Direct3D11.Resource.FromSwapChain <SharpDX.Direct3D11.Texture2D>(swapChain, 0);
using (var surface = backBufferTexture.QueryInterface <Surface2>())
{
d2d1DC = new DeviceContext(surface);
}
}
private void Application_Suspending(object sender, Windows.ApplicationModel.SuspendingEventArgs e)
{
if (isDXInitialized)
{
this.deviceContext.ClearState();
using (DXGI.Device3 dxgiDevice3 = this.swapChain.GetDevice <DXGI.Device3>())
{
dxgiDevice3.Trim();
}
}
}
private void Application_Suspending(object sender, Windows.ApplicationModel.SuspendingEventArgs e)
{
// Check if resources have been initialized.
if (isDXInitialized)
{
// Clear any object references.
this.deviceContext.ClearState();
// Trim the memory.
using (DXGI.Device3 dxgiDevice3 = this.swapChain.GetDevice <DXGI.Device3>())
{
dxgiDevice3.Trim();
}
}
}
/// <summary>
/// Destroys the SwapChain and all related instances.
/// </summary>
void DestroySwapChain()
{
_swapChain2?.Dispose();
_swapChain2 = null;
_device3?.Dispose();
_device3 = null;
_swapChain?.Dispose();
_swapChain = null;
_device?.Dispose();
_device = null;
_d3D11Device?.Dispose();
_d3D11Device = null;
}
private void InitializeD3D()
{
using (D3D11.Device defaultDevice = new D3D11.Device(D3D.DriverType.Hardware, D3D11.DeviceCreationFlags.Debug))
this.device = defaultDevice.QueryInterface <D3D11.Device2>();
this.deviceContext = this.device.ImmediateContext2;
DXGI.SwapChainDescription1 swapChainDescription = new DXGI.SwapChainDescription1()
{
AlphaMode = DXGI.AlphaMode.Ignore,
BufferCount = 2,
Format = DXGI.Format.R8G8B8A8_UNorm,
Height = (int)(this.swapChainPanel.RenderSize.Height),
Width = (int)(this.swapChainPanel.RenderSize.Width),
SampleDescription = new DXGI.SampleDescription(1, 0),
Scaling = SharpDX.DXGI.Scaling.Stretch,
Stereo = false,
SwapEffect = DXGI.SwapEffect.FlipSequential,
Usage = DXGI.Usage.RenderTargetOutput
};
using (DXGI.Device3 dxgiDevice3 = this.device.QueryInterface <DXGI.Device3>())
using (DXGI.Factory3 dxgiFactory3 = dxgiDevice3.Adapter.GetParent <DXGI.Factory3>())
{
DXGI.SwapChain1 swapChain1 = new DXGI.SwapChain1(dxgiFactory3, this.device, ref swapChainDescription);
this.swapChain = swapChain1.QueryInterface <DXGI.SwapChain2>();
}
using (DXGI.ISwapChainPanelNative nativeObject = ComObject.As <DXGI.ISwapChainPanelNative>(this.swapChainPanel))
nativeObject.SwapChain = this.swapChain;
this.backBufferTexture = this.swapChain.GetBackBuffer <D3D11.Texture2D>(0);
this.backBufferView = new D3D11.RenderTargetView(this.device, this.backBufferTexture);
deviceContext.Rasterizer.SetViewport(0, 0, (int)swapChainPanel.ActualWidth, (int)swapChainPanel.ActualHeight);
CompositionTarget.Rendering += CompositionTarget_Rendering;
Application.Current.Suspending += Current_Suspending;
isDXInitialized = true;
}
/// <summary>
/// Initializes the SwapChain for use with LibVLC
/// </summary>
void CreateSwapChain()
{
SharpDX.DXGI.Factory2 dxgiFactory = null;
try
{
var deviceCreationFlags =
DeviceCreationFlags.BgraSupport | DeviceCreationFlags.VideoSupport;
#if DEBUG
if (Windows.System.Profile.AnalyticsInfo.VersionInfo.DeviceFamily != Mobile)
{
deviceCreationFlags |= DeviceCreationFlags.Debug;
}
try
{
dxgiFactory = new SharpDX.DXGI.Factory2(true);
}
catch (SharpDXException)
{
dxgiFactory = new SharpDX.DXGI.Factory2(false);
}
#else
dxgiFactory = new SharpDX.DXGI.Factory2(false);
#endif
_d3D11Device = null;
foreach (var adapter in dxgiFactory.Adapters)
{
try
{
_d3D11Device = new SharpDX.Direct3D11.Device(adapter, deviceCreationFlags);
break;
}
catch (SharpDXException)
{
}
}
if (_d3D11Device is null)
{
throw new VLCException("Could not create Direct3D11 device : No compatible adapter found.");
}
_device = _d3D11Device.QueryInterface <SharpDX.DXGI.Device1>();
//Create the swapchain
var swapChainDescription = new SharpDX.DXGI.SwapChainDescription1
{
Width = (int)(_panel.ActualWidth * _panel.CompositionScaleX),
Height = (int)(_panel.ActualHeight * _panel.CompositionScaleY),
Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
Stereo = false,
SampleDescription =
{
Count = 1,
Quality = 0
},
Usage = Usage.RenderTargetOutput,
BufferCount = 2,
SwapEffect = SwapEffect.FlipSequential,
Flags = SwapChainFlags.None,
AlphaMode = AlphaMode.Unspecified
};
_swapChain = new SharpDX.DXGI.SwapChain1(dxgiFactory, _d3D11Device, ref swapChainDescription);
_device.MaximumFrameLatency = 1;
using (var panelNative = ComObject.As <ISwapChainPanelNative>(_panel))
{
panelNative.SwapChain = _swapChain;
}
// This is necessary so we can call Trim() on suspend
_device3 = _device.QueryInterface <SharpDX.DXGI.Device3>();
if (_device3 == null)
{
throw new VLCException("Failed to query interface \"Device3\"");
}
_swapChain2 = _swapChain.QueryInterface <SharpDX.DXGI.SwapChain2>();
if (_swapChain2 == null)
{
throw new VLCException("Failed to query interface \"SwapChain2\"");
}
UpdateScale();
UpdateSize();
_loaded = true;
Initialized?.Invoke(this, new InitializedEventArgs(SwapChainOptions));
}
catch (Exception ex)
{
DestroySwapChain();
if (ex is SharpDXException)
{
throw new VLCException("SharpDX operation failed, see InnerException for details", ex);
}
throw;
}
finally
{
dxgiFactory?.Dispose();
}
}
private void SwapChainPanel_Loaded(object sender, RoutedEventArgs e)
{
var v = ApplicationView.GetForCurrentView();
v.FullScreenSystemOverlayMode = FullScreenSystemOverlayMode.Minimal;
v.TryEnterFullScreenMode();
#if DEBUG
var debugLevel = D3D11.DeviceCreationFlags.Debug | D3D11.DeviceCreationFlags.BgraSupport;
#else
var debugLevel = D3D11.DeviceCreationFlags.None | D3D11.DeviceCreationFlags.BgraSupport;
#endif
using (D3D11.Device defaultDevice = new D3D11.Device(D3D.DriverType.Hardware, debugLevel))
{
this.device = defaultDevice.QueryInterface <D3D11.Device2>();
}
this.deviceContext = this.device.ImmediateContext2;
float pixelScale = Windows.Graphics.Display.DisplayInformation.GetForCurrentView().LogicalDpi / 96.0f;
DXGI.SwapChainDescription1 swapChainDescription = new DXGI.SwapChainDescription1()
{
AlphaMode = DXGI.AlphaMode.Premultiplied,
BufferCount = 2,
Format = DXGI.Format.B8G8R8A8_UNorm,
Height = (int)(this.SwapChainPanel.RenderSize.Height * pixelScale),
Width = (int)(this.SwapChainPanel.RenderSize.Width * pixelScale),
SampleDescription = new DXGI.SampleDescription(1, 0),
Scaling = DXGI.Scaling.Stretch,
Stereo = false,
SwapEffect = DXGI.SwapEffect.FlipSequential,
Usage = DXGI.Usage.BackBuffer | DXGI.Usage.RenderTargetOutput,
};
using (DXGI.Device3 dxgiDevice3 = this.device.QueryInterface <DXGI.Device3>())
{
using (DXGI.Factory3 dxgiFactory3 = dxgiDevice3.Adapter.GetParent <DXGI.Factory3>())
{
using (DXGI.SwapChain1 swapChain1 = new DXGI.SwapChain1(dxgiFactory3, this.device, ref swapChainDescription))
{
this.swapChain = swapChain1.QueryInterface <DXGI.SwapChain2>();
}
}
}
using (DXGI.ISwapChainPanelNative nativeObject = ComObject.As <DXGI.ISwapChainPanelNative>(this.SwapChainPanel))
{
nativeObject.SwapChain = this.swapChain;
}
this.backBufferTexture = D3D11.Texture2D.FromSwapChain <D3D11.Texture2D>(this.swapChain, 0);
this.backBufferView = new D3D11.RenderTargetView(this.device, this.backBufferTexture);
isDXInitialized = true;
tw = new TextWirter(device, swapChain, Color.Black, DisplayInformation.GetForCurrentView().LogicalDpi);
// #region D2D
//#if DEBUG
// var debug = SharpDX.Direct2D1.DebugLevel.Error;
//#else
// var debug = SharpDX.Direct2D1.DebugLevel.None;
//#endif
// d2dFactory = new SharpDX.Direct2D1.Factory1(SharpDX.Direct2D1.FactoryType.SingleThreaded, debug);
// using (var dxgiDevice = device.QueryInterface<SharpDX.DXGI.Device>())
// {
// d2dDevice = new SharpDX.Direct2D1.Device(d2dFactory, dxgiDevice);
// }
// d2dContext = new SharpDX.Direct2D1.DeviceContext(d2dDevice, SharpDX.Direct2D1.DeviceContextOptions.None);
// BitmapProperties1 properties = new BitmapProperties1(
// new PixelFormat(
// SharpDX.DXGI.Format.B8G8R8A8_UNorm,
// SharpDX.Direct2D1.AlphaMode.Premultiplied),
// DisplayInformation.GetForCurrentView().LogicalDpi,
// DisplayInformation.GetForCurrentView().LogicalDpi,
// BitmapOptions.Target | BitmapOptions.CannotDraw);
// DXGI.Surface backBuffer = swapChain.GetBackBuffer<DXGI.Surface>(0);
// d2dTarget = new Bitmap1(d2dContext, backBuffer, properties);
// SharpDX.DirectWrite.Factory fontFactory = new SharpDX.DirectWrite.Factory();
// textFormat = new TextFormat(fontFactory, "Segoe UI", 24.0f);
// textLayout1 = new TextLayout(fontFactory, "This is an example of a moving TextLayout object with snapped pixel boundaries.", textFormat, 400.0f, 200.0f);
// textLayout2 = new TextLayout(fontFactory, "This is an example of a moving TextLayout object with no snapped pixel boundaries.", textFormat, 400.0f, 200.0f);
// layoutY = 0.0f;
// backgroundBrush = new SharpDX.Direct2D1.SolidColorBrush(d2dContext, Color.White);
// textBrush = new SharpDX.Direct2D1.SolidColorBrush(d2dContext, Color.Black);
// #endregion
CompositionTarget.Rendering += CompositionTarget_Rendering;
Application.Current.Suspending += Application_Suspending;
}
public void CreateDirectXSwapChain(Adapter adapter)
{
var desc = adapter.Description;
Debug.WriteLine(desc.Description);
Debug.WriteLine($"vender = {desc.VendorId:X4}");
Debug.WriteLine($"Shared Memory: {desc.SharedSystemMemory} bytes");
Debug.WriteLine($"Video Memory: {desc.DedicatedVideoMemory} bytes");
Debug.WriteLine($"device: {desc.DeviceId}");
FeatureLevel[] featureLevels = new FeatureLevel[] {
FeatureLevel.Level_11_1,
FeatureLevel.Level_11_0,
FeatureLevel.Level_10_1,
};
D3D11Device = new SharpDX.Direct3D11.Device(adapter, DeviceCreationFlags.BgraSupport, featureLevels);
SwapChainDescription1 swapChainDescription = new SwapChainDescription1()
{
// Double buffer.
BufferCount = 2,
// BGRA 32bit pixel format.
Format = Format.B8G8R8A8_UNorm,
// Unlike in CoreWindow swap chains, the dimensions must be set.
Height = (int)(ActualHeight),
Width = (int)(ActualWidth),
// Default multisampling.
SampleDescription = new SampleDescription(1, 0),
// In case the control is resized, stretch the swap chain accordingly.
Scaling = Scaling.Stretch,
// No support for stereo display.
Stereo = false,
// Sequential displaying for double buffering.
SwapEffect = SwapEffect.FlipSequential,
// This swapchain is going to be used as the back buffer.
Usage = Usage.BackBuffer | Usage.RenderTargetOutput,
};
// 建立SwapChain
using (SharpDX.DXGI.Device3 dxgiDevice3 = D3D11Device.QueryInterface <SharpDX.DXGI.Device3>()) {
using (Factory2 dxgiFactory2 = dxgiDevice3.Adapter.GetParent <Factory2>()) {
using (SwapChain1 swapChain1 = new SwapChain1(dxgiFactory2, D3D11Device, ref swapChainDescription)) {
swapChain = swapChain1.QueryInterface <SwapChain>();
}
}
}
// 把Xaml的SwapChainPanel與DirectX的SwapChain連結起來
using (ISwapChainPanelNative swapChainPanelNative = ComObject.As <ISwapChainPanelNative>(this)) {
swapChainPanelNative.SwapChain = swapChain;
}
backBuffer = SharpDX.Direct3D11.Resource.FromSwapChain <Texture2D>(swapChain, 0);
var renderTarget = new RenderTargetView(D3D11Device, backBuffer);
context = D3D11Device.ImmediateContext;
// Clear Screen to Teel Blue.
context.ClearRenderTargetView(renderTarget, new Color(0xFF887536));
swapChain.Present(1, PresentFlags.None);
}
private void SwapChainPanel_Loaded(object sender, RoutedEventArgs e)
{
// Create a new Direct3D hardware device and ask for Direct3D 11.2 support
using (D3D11.Device defaultDevice = new D3D11.Device(D3D.DriverType.Hardware, D3D11.DeviceCreationFlags.Debug))
{
this.device = defaultDevice.QueryInterface <D3D11.Device2>();
}
// Save the context instance
this.deviceContext = this.device.ImmediateContext2;
Size2 sizeInPixels = RenderSizeToPixelSize(this.SwapChainPanel.RenderSize);
// Properties of the swap chain
DXGI.SwapChainDescription1 swapChainDescription = new DXGI.SwapChainDescription1()
{
// No transparency.
AlphaMode = DXGI.AlphaMode.Ignore,
// Double buffer.
BufferCount = 2,
// BGRA 32bit pixel format.
Format = DXGI.Format.B8G8R8A8_UNorm,
// Unlike in CoreWindow swap chains, the dimensions must be set.
Height = sizeInPixels.Height,
Width = sizeInPixels.Width,
// Default multisampling.
SampleDescription = new DXGI.SampleDescription(1, 0),
// In case the control is resized, stretch the swap chain accordingly.
Scaling = DXGI.Scaling.Stretch,
// No support for stereo display.
Stereo = false,
// Sequential displaying for double buffering.
SwapEffect = DXGI.SwapEffect.FlipSequential,
// This swapchain is going to be used as the back buffer.
Usage = DXGI.Usage.BackBuffer | DXGI.Usage.RenderTargetOutput,
};
// Retrive the DXGI device associated to the Direct3D device.
using (DXGI.Device3 dxgiDevice3 = this.device.QueryInterface <DXGI.Device3>())
{
// Get the DXGI factory automatically created when initializing the Direct3D device.
using (DXGI.Factory3 dxgiFactory3 = dxgiDevice3.Adapter.GetParent <DXGI.Factory3>())
{
// Create the swap chain and get the highest version available.
using (DXGI.SwapChain1 swapChain1 = new DXGI.SwapChain1(dxgiFactory3, this.device, ref swapChainDescription))
{
this.swapChain = swapChain1.QueryInterface <DXGI.SwapChain2>();
}
}
}
// Obtain a reference to the native COM object of the SwapChainPanel.
using (DXGI.ISwapChainPanelNative nativeObject = ComObject.As <DXGI.ISwapChainPanelNative>(this.SwapChainPanel))
{
// Set its swap chain.
nativeObject.SwapChain = this.swapChain;
}
// Create a Texture2D from the existing swap chain to use as
this.backBufferTexture = D3D11.Texture2D.FromSwapChain <D3D11.Texture2D>(this.swapChain, 0);
this.backBufferView = new D3D11.RenderTargetView(this.device, this.backBufferTexture);
// This event is fired when the application requests a new frame from the DirectX interop controls.
CompositionTarget.Rendering += CompositionTarget_Rendering;
// Subscribe to the suspending event
Application.Current.Suspending += Application_Suspending;
// Mark our resources as initialized
isDXInitialized = true;
}