public D3D11Device(IntPtr handle, D3DFeatureLevel featureLevel, ID3D11SwapChain swapChain, ID3D11DeviceContext context)
{
_handle = handle;
FeatureLevel = featureLevel;
SwapChain = swapChain;
Context = context;
}
public static extern HRESULT D3D11CreateDevice_(
[In] IntPtr adapter,
[In] D3DDriverType driverType,
[In] IntPtr hModule,
[In] uint flags,
[In] D3DFeatureLevel[] featureLevel,
[In] uint featureLevels,
[In] uint sdkVersion,
[Out] out IntPtr device,
[Out] out D3DFeatureLevel pFeatureLevel,
[Out] out IntPtr context
);
private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
// 根据 [Surface sharing between Windows graphics APIs - Win32 apps](https://docs.microsoft.com/en-us/windows/win32/direct3darticles/surface-sharing-between-windows-graphics-apis?WT.mc_id=WD-MVP-5003260 ) 文档
var width = ImageWidth;
var height = ImageHeight;
// 2021.12.23 不能在 x86 下运行，会炸掉。参阅 https://github.com/dotnet/Silk.NET/issues/731
var texture2DDesc = new D3D11.Texture2DDesc()
{
BindFlags = (uint)(D3D11.BindFlag.BindRenderTarget | D3D11.BindFlag.BindShaderResource),
Format = DXGI.Format.FormatB8G8R8A8Unorm, // 最好使用此格式，否则还需要后续转换
Width = (uint)width,
Height = (uint)height,
MipLevels = 1,
SampleDesc = new DXGI.SampleDesc(1, 0),
Usage = D3D11.Usage.UsageDefault,
MiscFlags = (uint)D3D11.ResourceMiscFlag.ResourceMiscShared,
// The D3D11_RESOURCE_MISC_FLAG cannot be used when creating resources with D3D11_CPU_ACCESS flags.
CPUAccessFlags = 0, //(uint) D3D11.CpuAccessFlag.None,
ArraySize = 1
};
D3D11.ID3D11Device * pD3D11Device;
D3D11.ID3D11DeviceContext *pD3D11DeviceContext;
D3DFeatureLevel pD3DFeatureLevel = default;
D3D11.D3D11 d3D11 = D3D11.D3D11.GetApi();
var hr = d3D11.CreateDevice((DXGI.IDXGIAdapter *)IntPtr.Zero, D3DDriverType.D3DDriverTypeHardware,
Software: 0,
Flags: (uint)D3D11.CreateDeviceFlag.CreateDeviceBgraSupport,
(D3DFeatureLevel *)IntPtr.Zero,
FeatureLevels: 0, // D3DFeatureLevel 的长度
SDKVersion: 7,
(D3D11.ID3D11Device * *) & pD3D11Device, // 参阅 [C# 从零开始写 SharpDx 应用 聊聊功能等级](https://blog.lindexi.com/post/C-%E4%BB%8E%E9%9B%B6%E5%BC%80%E5%A7%8B%E5%86%99-SharpDx-%E5%BA%94%E7%94%A8-%E8%81%8A%E8%81%8A%E5%8A%9F%E8%83%BD%E7%AD%89%E7%BA%A7.html )
ref pD3DFeatureLevel,
(D3D11.ID3D11DeviceContext * *) & pD3D11DeviceContext
);
SilkMarshal.ThrowHResult(hr);
Debugger.Launch();
Debugger.Break();
_pD3D11Device = pD3D11Device;
_pD3D11DeviceContext = pD3D11DeviceContext;
D3D11.ID3D11Texture2D *pD3D11Texture2D;
hr = pD3D11Device->CreateTexture2D(ref texture2DDesc, (D3D11.SubresourceData *)IntPtr.Zero, &pD3D11Texture2D);
SilkMarshal.ThrowHResult(hr);
var renderTarget = pD3D11Texture2D;
_pD3D11Texture2D = pD3D11Texture2D;
DXGI.IDXGISurface *pDXGISurface;
var dxgiSurfaceGuid = DXGI.IDXGISurface.Guid;
renderTarget->QueryInterface(ref dxgiSurfaceGuid, (void **)&pDXGISurface);
_pDXGISurface = pDXGISurface;
var d2DFactory = new D2D.Factory();
var renderTargetProperties =
new D2D.RenderTargetProperties(new D2D.PixelFormat(SharpDXDXGI.Format.Unknown, D2D.AlphaMode.Premultiplied));
var surface = new SharpDXDXGI.Surface(new IntPtr((void *)pDXGISurface));
_d2DRenderTarget = new D2D.RenderTarget(d2DFactory, surface, renderTargetProperties);
SetRenderTarget(renderTarget);
var viewport = new D3D11.Viewport(0, 0, width, height, 0, 1);
pD3D11DeviceContext->RSSetViewports(NumViewports: 1, ref viewport);
CompositionTarget.Rendering += CompositionTarget_Rendering;
}
