Dzień dobry, próbuję wyświetlać stereofoniczne wideo w czasie rzeczywistym za pomocą nvidia 3DVision i dwóch kamer IP. Jestem całkowicie nowy w DirectX, ale próbowałem pracować z samouczkami i innymi pytaniami na tej i innych stronach. Na razie wyświetlam dwie statyczne mapy bitowe dla lewego i prawego oka. Zostaną one zastąpione bitmapami z moich aparatów, gdy tylko uruchomię tę część mojego programu. To pytanieNV_STEREO_IMAGE_SIGNATURE i DirectX 10/11 (nVidia 3D Vision) pomógł mi trochę, ale wciąż staram się, aby mój program działał tak, jak powinien. Odkryłem, że moje okulary migawkowe zaczynają działać tak, jak powinny, ale wyświetla się tylko obraz prawego oka, podczas gdy lewe oko pozostaje puste (z wyjątkiem kursora myszy).

Oto mój kod do generowania obrazów stereo:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;

using SlimDX;
using SlimDX.Direct3D11;
using SlimDX.Windows;
using SlimDX.DXGI;

using Device = SlimDX.Direct3D11.Device;            // Make sure we use DX11
using Resource = SlimDX.Direct3D11.Resource;

namespace SlimDxTest2
{
static class Program
{
    private static Device device;               // DirectX11 Device
    private static int Count;                   // Just to make sure things are being updated

    // The NVSTEREO header. 
    static byte[] stereo_data = new byte[] {0x4e, 0x56, 0x33, 0x44,   //NVSTEREO_IMAGE_SIGNATURE         = 0x4433564e; 
    0x00, 0x0F, 0x00, 0x00,                                           //Screen width * 2 = 1920*2 = 3840 = 0x00000F00; 
    0x38, 0x04, 0x00, 0x00,                                           //Screen height = 1080             = 0x00000438; 
    0x20, 0x00, 0x00, 0x00,                                           //dwBPP = 32                       = 0x00000020; 
    0x02, 0x00, 0x00, 0x00};                                          //dwFlags = SIH_SCALE_TO_FIT       = 0x00000002

    [STAThread]
    static void Main()
    {

        Bitmap left_im = new Bitmap("Blue.png");        // Read in Bitmaps
        Bitmap right_im = new Bitmap("Red.png");

        // Device creation 
        var form = new RenderForm("Stereo test") { ClientSize = new Size(1920, 1080) };
        var desc = new SwapChainDescription()
        {
            BufferCount = 1,
            ModeDescription = new ModeDescription(1920, 1080, new Rational(120, 1), Format.R8G8B8A8_UNorm),
            IsWindowed = false, //true,
            OutputHandle = form.Handle,
            SampleDescription = new SampleDescription(1, 0),
            SwapEffect = SwapEffect.Discard,
            Usage = Usage.RenderTargetOutput
        };

        SwapChain swapChain;
        Device.CreateWithSwapChain(DriverType.Hardware, DeviceCreationFlags.Debug, desc, out device, out swapChain);

        RenderTargetView renderTarget;          // create a view of our render target, which is the backbuffer of the swap chain we just created
        using (var resource = Resource.FromSwapChain<Texture2D>(swapChain, 0))
            renderTarget = new RenderTargetView(device, resource);

        var context = device.ImmediateContext;                  // set up a viewport
        var viewport = new Viewport(0.0f, 0.0f, form.ClientSize.Width, form.ClientSize.Height);
        context.OutputMerger.SetTargets(renderTarget);
        context.Rasterizer.SetViewports(viewport);

        // prevent DXGI handling of alt+enter, which doesn't work properly with Winforms
        using (var factory = swapChain.GetParent<Factory>())
            factory.SetWindowAssociation(form.Handle, WindowAssociationFlags.IgnoreAll);

        form.KeyDown += (o, e) =>                   // handle alt+enter ourselves
        {
            if (e.Alt && e.KeyCode == Keys.Enter)
                swapChain.IsFullScreen = !swapChain.IsFullScreen;
        };

        form.KeyDown += (o, e) =>                   // Alt + X -> Exit Program
        {
            if (e.Alt && e.KeyCode == Keys.X)
            {
                form.Close();
            }
        };

        context.ClearRenderTargetView(renderTarget, Color.Green);       // Fill Screen with specified colour

        Texture2DDescription stereoDesc = new Texture2DDescription()
        {
            ArraySize = 1,
            Width = 3840,
            Height = 1081,
            BindFlags = BindFlags.None,
            CpuAccessFlags = CpuAccessFlags.Write,
            Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm,
            OptionFlags = ResourceOptionFlags.None,
            Usage = ResourceUsage.Staging,
            MipLevels = 1,
            SampleDescription = new SampleDescription(1, 0)
        };

        // Main Loop 
        MessagePump.Run(form, () =>
        {
            Texture2D texture_stereo =  Make3D(left_im, right_im);      // Create Texture from two bitmaps in memory
            ResourceRegion stereoSrcBox = new ResourceRegion { Front = 0, Back = 1, Top = 0, Bottom = 1080, Left = 0, Right = 1920 };
            context.CopySubresourceRegion(texture_stereo, 0, stereoSrcBox, renderTarget.Resource, 0, 0, 0, 0);
            texture_stereo.Dispose();

            swapChain.Present(0, PresentFlags.None);
        });

        // Dispose resources 

        swapChain.IsFullScreen = false;     // Required before swapchain dispose
        device.Dispose();
        swapChain.Dispose();
        renderTarget.Dispose();

    }



    static Texture2D Make3D(Bitmap leftBmp, Bitmap rightBmp)
    {
        var context = device.ImmediateContext;
        Bitmap left2 = leftBmp.Clone(new RectangleF(0, 0, leftBmp.Width, leftBmp.Height), PixelFormat.Format32bppArgb);     // Change bmp to 32bit ARGB
        Bitmap right2 = rightBmp.Clone(new RectangleF(0, 0, rightBmp.Width, rightBmp.Height), PixelFormat.Format32bppArgb);

        // Show FrameCount on screen: (To test)
        Graphics left_graph = Graphics.FromImage(left2);
        left_graph.DrawString("Frame: " + Count.ToString(), new System.Drawing.Font("Arial", 16), Brushes.Black, new PointF(100, 100));
        left_graph.Dispose();

        Graphics right_graph = Graphics.FromImage(right2);
        right_graph.DrawString("Frame: " + Count.ToString(), new System.Drawing.Font("Arial", 16), Brushes.Black, new PointF(200, 200));
        right_graph.Dispose();
        Count++;

        Texture2DDescription desc2d = new Texture2DDescription()
        {
            ArraySize = 1,
            Width = 1920,
            Height = 1080,
            BindFlags = BindFlags.None,
            CpuAccessFlags = CpuAccessFlags.Write,
            Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm,
            OptionFlags = ResourceOptionFlags.None,
            Usage = ResourceUsage.Staging,
            MipLevels = 1,
            SampleDescription = new SampleDescription(1, 0)
        };

        Texture2D leftText2 = new Texture2D(device, desc2d);        // Texture2D for each bmp
        Texture2D rightText2 = new Texture2D(device, desc2d);

        Rectangle rect = new Rectangle(0, 0, left2.Width, left2.Height);
        BitmapData leftData = left2.LockBits(rect, ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
        IntPtr left_ptr = leftData.Scan0;
        int left_num_bytes = Math.Abs(leftData.Stride) * leftData.Height;
        byte[] left_bytes = new byte[left_num_bytes];
        byte[] left_bytes2 = new byte[left_num_bytes];

        System.Runtime.InteropServices.Marshal.Copy(left_ptr, left_bytes, 0, left_num_bytes);       // Get Byte array from bitmap
        left2.UnlockBits(leftData);
        DataBox box1 = context.MapSubresource(leftText2, 0, MapMode.Write, SlimDX.Direct3D11.MapFlags.None);
        box1.Data.Write(left_bytes, 0, left_bytes.Length);
        context.UnmapSubresource(leftText2, 0);

        BitmapData rightData = right2.LockBits(rect, ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
        IntPtr right_ptr = rightData.Scan0;
        int right_num_bytes = Math.Abs(rightData.Stride) * rightData.Height;
        byte[] right_bytes = new byte[right_num_bytes];

        System.Runtime.InteropServices.Marshal.Copy(right_ptr, right_bytes, 0, right_num_bytes);       // Get Byte array from bitmap
        right2.UnlockBits(rightData);
        DataBox box2 = context.MapSubresource(rightText2, 0, MapMode.Write, SlimDX.Direct3D11.MapFlags.None);
        box2.Data.Write(right_bytes, 0, right_bytes.Length);
        context.UnmapSubresource(rightText2, 0);

        Texture2DDescription stereoDesc = new Texture2DDescription()
        {
            ArraySize = 1,
            Width = 3840,
            Height = 1081,
            BindFlags = BindFlags.None,
            CpuAccessFlags = CpuAccessFlags.Write,
            Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm,
            OptionFlags = ResourceOptionFlags.None,
            Usage = ResourceUsage.Staging,
            MipLevels = 1,
            SampleDescription = new SampleDescription(1, 0)
        };
        Texture2D stereoTexture = new Texture2D(device, stereoDesc);    // Texture2D to contain stereo images and Nvidia 3DVision Signature

        // Identify the source texture region to copy (all of it) 
        ResourceRegion stereoSrcBox = new ResourceRegion { Front = 0, Back = 1, Top = 0, Bottom = 1080, Left = 0, Right = 1920 };

        // Copy it to the stereo texture 
        context.CopySubresourceRegion(leftText2, 0, stereoSrcBox, stereoTexture, 0, 0, 0, 0);
        context.CopySubresourceRegion(rightText2, 0, stereoSrcBox, stereoTexture, 0, 1920, 0, 0);   // Offset by 1920 pixels

        // Open the staging texture for reading and go to last row
        DataBox box = context.MapSubresource(stereoTexture, 0, MapMode.Write, SlimDX.Direct3D11.MapFlags.None);
        box.Data.Seek(stereoTexture.Description.Width * (stereoTexture.Description.Height - 1) * 4, System.IO.SeekOrigin.Begin);
        box.Data.Write(stereo_data, 0, stereo_data.Length);            // Write the NVSTEREO header 
        context.UnmapSubresource(stereoTexture, 0);

        left2.Dispose();
        leftText2.Dispose();
        right2.Dispose();
        rightText2.Dispose();
        return stereoTexture;
    } 

}

}

Próbowałem różnych metod kopiowania Texture2D obrazu stereofonicznego, w tym sygnatury (3840x1081), do backbuffera, ale żadna z metod, które próbowałem, nie wyświetlała obu obrazów ... Każda pomoc lub komentarze będą bardzo mile widziane, Ryan