在DirectX UWP应用程序中显示XAML页面,可以通过以下步骤实现:
具体步骤如下:
<SwapChainPanel x:Name="swapChainPanel" />
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Navigation;
using Windows.UI.Xaml.Hosting;
using Microsoft.Graphics.Canvas.UI.Xaml;
public sealed partial class MainPage : Page
{
private SwapChainPanel swapChainPanel;
private CanvasSwapChain swapChain;
public MainPage()
{
this.InitializeComponent();
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
// 获取SwapChainPanel控件
swapChainPanel = this.swapChainPanel;
// 初始化DirectX渲染
InitializeDirectX();
}
private void InitializeDirectX()
{
// 创建SwapChain描述
SwapChainDescription1 swapChainDescription = new SwapChainDescription1()
{
Width = (uint)swapChainPanel.ActualWidth,
Height = (uint)swapChainPanel.ActualHeight,
Format = DirectXPixelFormat.B8G8R8A8UIntNormalized,
Stereo = false,
SampleDescription = new SampleDescription(1, 0),
Usage = DXGI.Usage.RenderTargetOutput,
BufferCount = 2,
Scaling = DXGI.Scaling.Stretch,
SwapEffect = DXGI.SwapEffect.FlipSequential,
};
// 创建SwapChain
swapChain = CanvasSwapChain.CreateForCompositionAsync(
CanvasDevice.GetSharedDevice(),
swapChainDescription,
new CompositionTarget(canvasDevice),
new CanvasSwapChainFactory()).GetAwaiter().GetResult();
// 将SwapChain设置为当前的渲染目标
using (var ds = swapChain.CreateDrawingSurface(swapChainPanel.ActualWidth, swapChainPanel.ActualHeight, DirectXPixelFormat.B8G8R8A8UIntNormalized, DirectXAlphaMode.Premultiplied))
{
swapChainPanel.SwapChain = swapChain;
}
}
}
using Windows.ApplicationModel.Background;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Hosting;
using Microsoft.Graphics.Canvas.UI.Xaml;
public sealed class XamlRenderingBackgroundTask : IBackgroundTask
{
private SwapChainPanel swapChainPanel;
private CanvasSwapChain swapChain;
public void Run(IBackgroundTaskInstance taskInstance)
{
// 获取SwapChainPanel控件
swapChainPanel = MainPage.Current.swapChainPanel;
// 创建SwapChain描述
SwapChainDescription1 swapChainDescription = new SwapChainDescription1()
{
Width = (uint)swapChainPanel.ActualWidth,
Height = (uint)swapChainPanel.ActualHeight,
Format = DirectXPixelFormat.B8G8R8A8UIntNormalized,
Stereo = false,
SampleDescription = new SampleDescription(1, 0),
Usage = DXGI.Usage.RenderTargetOutput,
BufferCount = 2,
Scaling = DXGI.Scaling.Stretch,
SwapEffect = DXGI.SwapEffect.FlipSequential,
};
// 创建SwapChain
swapChain = CanvasSwapChain.CreateForCompositionAsync(
CanvasDevice.GetSharedDevice(),
swapChainDescription,
new CompositionTarget(canvasDevice),
new CanvasSwapChainFactory()).GetAwaiter().GetResult();
// 将SwapChain设置为当前的渲染目标
using (var ds = swapChain.CreateDrawingSurface(swapChainPanel.ActualWidth, swapChainPanel.ActualHeight, DirectXPixelFormat.B8G8R8A8UIntNormalized, DirectXAlphaMode.Premultiplied))
{
swapChainPanel.SwapChain = swapChain;
}
}
}
以上就是在DirectX UWP应用程序中显示XAML页面的步骤。通过将SwapChainPanel作为DirectX渲染的容器,并使用XamlRenderingBackgroundTask将XAML页面渲染到SwapChainPanel上,可以实现在DirectX应用程序中显示XAML页面的效果。
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