如何用SharpDX 4.2.0将Stream转为D3DImage并解决显示异常

我需要在WPF应用中通过SharpDX 4.2.0把JPG格式的byte[]显示到D3DImage控件上，梳理出以下实现步骤：

补充说明：我已创建两个D3D11.Texture2D，一个用于写入像素数据，另一个用于共享给Direct3D9，代码可正常编译，但屏幕无任何显示，希望有人帮忙排查原因。

• 步骤1：将Stream转换为SharpDX.Direct3D11.Texture2D
• 步骤2：创建SharpDX.Direct3D11.Texture2D（d3dTexture_Draw）并写入像素数据
• 步骤3：创建用于共享给Direct3D9.Texture的SharpDX.Direct3D11.Texture2D（_finalTexture）
• 步骤4：调用d11dContext.CopyResource(d3dTexture_Draw, _finalTexture)
• 步骤5：将_finalTexture共享给Direct3D9.Texture
• 步骤6：调用D3DImage.SetBackBuffer设置Direct3D9.Texture的表面

更新说明：
@Simon Mourier：你的解决方案完全有效！

private void LoadBmpToTexture(string filePath)
{
    // 将JPG加载为Bitmap
    using (System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(filePath))
    {
        SharpDX.Direct3D11.Device device = new SharpDX.Direct3D11.Device(DriverType.Hardware, DeviceCreationFlags.None | DeviceCreationFlags.BgraSupport, SharpDX.Direct3D.FeatureLevel.Level_11_0);
        SharpDX.Direct3D11.DeviceContext d11dContext = device.ImmediateContext;

        byte[] byteArray = ConvertBitmapToByteArray(bitmap);
        MemoryStream memoryStream = new MemoryStream(byteArray);                
        using (var imagingFactory = new SharpDX.WIC.ImagingFactory2())
        {
            var decoder = new SharpDX.WIC.BitmapDecoder(imagingFactory, memoryStream, DecodeOptions.CacheOnLoad);
            var frame = decoder.GetFrame(0);
            var formatConverter = new FormatConverter(imagingFactory);
            // 将图像格式转换为32位PBGRA
            formatConverter.Initialize(frame, SharpDX.WIC.PixelFormat.Format32bppPBGRA);

            var width = formatConverter.Size.Width;
            var height = formatConverter.Size.Height;

            var textureDesc = new Texture2DDescription
            {
                Width = width,
                Height = height,
                MipLevels = 1,
                ArraySize = 1,
                Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
                SampleDescription = new SampleDescription(1, 0),
                Usage = ResourceUsage.Dynamic,
                BindFlags = BindFlags.ShaderResource,
                CpuAccessFlags = CpuAccessFlags.Write,

            };

            var d3dTexture_Draw = new Texture2D(device, textureDesc);

            // 将像素数据复制到Texture2D
            var dataBox = d11dContext.MapSubresource(d3dTexture_Draw, 0, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None);
            using (var wicStream = new DataStream(dataBox.DataPointer, width * height * 4, true, true))
            {
                formatConverter.CopyPixels(width * 4, wicStream);
            }
            d11dContext.UnmapSubresource(d3dTexture_Draw, 0);


            var final_descriptor = new Texture2DDescription()
            {
                Width = (int)img.Width,
                Height = (int)img.Height,
                ArraySize = 1,
                BindFlags = BindFlags.RenderTarget | BindFlags.ShaderResource,
                Usage = ResourceUsage.Default,
                CpuAccessFlags = CpuAccessFlags.None,
                Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
                MipLevels = 1,
                OptionFlags = ResourceOptionFlags.Shared,
                SampleDescription = new SampleDescription(1, 0)
            };

            Texture2D _finalTexture = new Texture2D(device, final_descriptor);

            d11dContext.CopyResource(d3dTexture_Draw, _finalTexture);

            SharpDX.Direct3D9.Direct3DEx d9context = new SharpDX.Direct3D9.Direct3DEx();
            SharpDX.Direct3D9.Device d9device = new SharpDX.Direct3D9.Device(d9context,
                                                                0,
                                                                DeviceType.Hardware,
                                                                IntPtr.Zero,
                                                                CreateFlags.HardwareVertexProcessing,
                                                                new SharpDX.Direct3D9.PresentParameters()
                                                                {
                                                                    Windowed = true,
                                                                    SwapEffect = SharpDX.Direct3D9.SwapEffect.Discard,
                                                                    DeviceWindowHandle = new WindowInteropHelper(this).Handle,
                                                                    PresentationInterval = PresentInterval.Immediate,
                                                                });

            IntPtr renderTextureHandle = _finalTexture.QueryInterface<SharpDX.DXGI.Resource>().SharedHandle;

            SharpDX.Direct3D9.Texture d9texture = new SharpDX.Direct3D9.Texture(d9device,
                                                                   _finalTexture.Description.Width,
                                                                   _finalTexture.Description.Height,
                                                                   1,
                                                                   SharpDX.Direct3D9.Usage.RenderTarget,
                                                                   SharpDX.Direct3D9.Format.A8R8G8B8,
                                                                   Pool.Default,
                                                                   ref renderTextureHandle);
            
            d3dImage = new D3DImage();
            d3dImage.Lock();
            
            d3dImage.SetBackBuffer(D3DResourceType.IDirect3DSurface9, d9texture.GetSurfaceLevel(0).NativePointer, true);

            // 设置脏区域：宽720，高370
            d3dImage.AddDirtyRect(new Int32Rect(0, 0, 720, 370));
            d3dImage.Unlock();
            img.Source= d3dImage;
        }
    }
}

内容的提问来源于stack exchange，提问作者Steve Park