D3D on an ID2D1Bitmap

Question

I have seen plenty of sample that show how to share an ID3D11Texture2D with D2D.

Now I want to do the opposite. I have a D2D bitmap (ID2D1Bitmap) and I would like to write some code that help me make it a D3D render target. I.e. how to create a ID3D11RenderTargetView that will draw on the ID2D1Bitmap

Answer 1

Hi,

Please follow these codes.

    DX::ThrowIfFailed( 
        m_d3dDevice->CreateTexture2D( 
            &textureDesc, 
            nullptr, 
            &m_texture 
            ) 
        ); 
 
    CD3D11_SHADER_RESOURCE_VIEW_DESC shaderResourceViewDesc( 
        m_texture.Get(), 
        D3D11_SRV_DIMENSION_TEXTURE2D 
        ); 
 
    DX::ThrowIfFailed( 
        m_d3dDevice->CreateShaderResourceView( 
            m_texture.Get(), 
            &shaderResourceViewDesc, 
            &m_textureShaderResourceView 
            ) 
        ); 
 
    // Use D2D to attach to and draw some text to the cube texture.  Note that the cube 
    // texture is DPI-independent, so when drawing content to it using D2D, a fixed DPI 
    // value should be used. 
 
    const float dxgiDpi = 96.0f; 
 
    m_d2dContext->SetDpi(dxgiDpi, dxgiDpi); 
 
    D2D1_BITMAP_PROPERTIES1 bitmapProperties = 
        D2D1::BitmapProperties1( 
            D2D1_BITMAP_OPTIONS_TARGET | D2D1_BITMAP_OPTIONS_CANNOT_DRAW, 
            D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_PREMULTIPLIED), 
            dxgiDpi, 
            dxgiDpi 
            ); 
 
    ComPtr<ID2D1Bitmap1> cubeTextureTarget; 
    ComPtr<IDXGISurface> cubeTextureSurface; 
    DX::ThrowIfFailed( 
        m_texture.As(&cubeTextureSurface) 
        ); 
 
    DX::ThrowIfFailed( 
        m_d2dContext->CreateBitmapFromDxgiSurface( 
            cubeTextureSurface.Get(), 
            &bitmapProperties, 
            &cubeTextureTarget 
            ) 
        ); 
 
    m_d2dContext->SetTarget(cubeTextureTarget.Get()); 

And this sample code
Direct3D-Direct2D interop sample
http://code.msdn.microsoft.com/windowsapps/Direct2D-Direct3D-Interop-ee641e46

Best regards,
Jesse

---

Jesse Jiang
MSDN Community Support | Feedback to us
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Answer 2

Hi Jess, unless I misunderstand you or your sample, it's not quite what I want!

Although I should admit I didn't express my problem very well in the first place.... :/

Here is a better question:

I instantiated an ID2D1Bitmap that I use to do some D2D drawing.

Now at some stage I'd like to draw a D3D scene on that particular ID2D1Bitmap, i.e. I'd like to do:
ID3D11DeviceContext1* d3dctxt;
ID2D1Bitmap* d2dimage

d3dctxt->SetTarget(d2dimage)

or something roughly equivalent!!

or maybe this is not possible and I would settle for the followin (which I bet is possible, I just don't know how)

ID3D11Texture2D* renderTarget
ID2D1Bitmap* d2dimage

renderTarget->CopyTo(d2dimage)

Thanks! :)

Answer 3

Hi Lloyd - I am researching this and will get back with you if it's possible.

---

Matt Small - Microsoft Escalation Engineer - Forum Moderator
If my reply answers your question, please mark this post as answered.

NOTE: If I ask for code, please provide something that I can drop directly into a project and run (including XAML), or an actual application project. I'm trying to help a lot of people, so I don't have time to figure out weird snippets with undefined objects and unknown namespaces.

Answer 4

Hi Matt,

Just in case you ask for code, take a look at: http://directwinrt.codeplex.com/

And at Sample_D2D project.

I create a (D2D) Image brush in it. Maybe I want to create with a Texture2D rather than a bitmap file.

In fact, to make it simple, you can also create a Texture2D with a file! (LoadFile)