Question

我在做什么

我有一个WPF应用程序，我正在使用SlimDX。香港专业教育学院创建了一个用户控件，其中包含一个d3dImage。初始化时，我创建一个新任务，该任务在带有Dx11设备的Texture2D上渲染。重做之后，我使用IProgress对象通过Device9Ex对象将Texture设置为D3dImage的Backbuffer。我使用KeyedMutex来同步共享表面。

The "Renderarchitecture"

问题问题发生在使用Device9Ex对象设置D3dImage的后备缓冲区的步骤中。 Texture2d构造函数会引发异常。

public void Dx9SetbackBuffer(Texture2D toSetAsBackBuffer)
    {
        _mutex.Acquire(1,int.MaxValue);
        Format textureFormat = TranslateDx11ToDx9Format(toSetAsBackBuffer);
        _sharedTexture?.Dispose();
        IntPtr handle;
        using (var resource = new SlimDX.DXGI.Resource(toSetAsBackBuffer))
        {

            handle = resource.SharedHandle;
        }
        // the next line throws Exception: SlimDX.Direct3D9.Direct3D9Exception: "D3DERR_INVALIDCALL: Invalid call (-2005530516)"
        _sharedTexture = new Texture(_device,
            toSetAsBackBuffer.Description.Width,
            toSetAsBackBuffer.Description.Height,
            1,
            Usage.RenderTarget|Usage.WriteOnly,
            textureFormat,
            Pool.Default,
            ref handle);

        using (Surface surface = _sharedTexture.GetSurfaceLevel(0))
        {
            _renderTo.Lock();
                _renderTo.SetBackBuffer(D3DResourceType.IDirect3DSurface9, surface.ComPointer);
                _renderTo.AddDirtyRect(new Int32Rect(0, 0, _renderTo.PixelWidth, _renderTo.PixelHeight));
            _renderTo.Unlock();
        }

        _mutex.Release(0);
    }

用于初始化dx11设备并创建共享纹理的代码

  _device = new Device(DriverType.Hardware, DeviceCreationFlags.Debug | 
   DeviceCreationFlags.BgraSupport,
            FeatureLevel.Level_11_0);

        TextureDescription = new Texture2DDescription()
        {
            BindFlags = BindFlags.RenderTarget|BindFlags.ShaderResource,
            Format = Format.B8G8R8A8_UNorm,
            ArraySize = 1,
            Width = _width > 0 ? _width : 800,
            Height = _height > 0 ? _height : 600,
            MipLevels = 1,
            Usage = ResourceUsage.Default,
            SampleDescription = new SampleDescription(1, 0),
            CpuAccessFlags = CpuAccessFlags.None,
            OptionFlags = ResourceOptionFlags.Shared
        };

        var depthDescription = new Texture2DDescription()
        {
            ...
        };
        var mutexDescription = new Texture2DDescription()
        {
            ...
        };

        _mutexTexture = new Texture2D(_device,mutexDescription);
        _mutex = new KeyedMutex(_mutexTexture);

        //this is the texture, that is copied by the d9Device
        SharedTexture = new Texture2D(_device, TextureDescription);
        DepthTexture = new Texture2D(_device, depthDescription);
        SampleRenderView = new RenderTargetView(_device, SharedTexture);
        SampleDepthView = new DepthStencilView(_device, DepthTexture);

如您所见，即时消息仅使用专用纹理进行表面同步。我不确定这是否正确，因为我在使用共享和keyedmutex标志初始化单个Texture时遇到问题。

如果您需要更多信息，请告诉我。

我将非常感谢您的帮助。

Texture2D Ctor中的SlimDx Dx9-> Dx11共享表面异常

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