How to persist a ID2D1Bitmap ??? ID2D1RenderTarget::DrawBitmap not working

Question

I am attempting to persist a Bitmap extracted from a video accessed using WMF.

I am using ID2D1RenderTarget::DrawBitmap against a ID2D1Bitmap, which is causing  ID2D1RenderTarget::EndDraw() to return a failed HRESULT (-2003238894)

 

Other Draw operations (lines gradient, text) work fine – see SaveAsImageFileSample (http://msdn.microsoft.com/en-us/library/windows/desktop/dd756758(v=vs.85).aspx)

When I try to pass a ID2D1Bitmap (Im using the VideoThumbnailsample: http://msdn.microsoft.com/en-us/library/dd757933(VS.85).aspx) – EndDraw fails.

THe SaveToImageFile function is called as follows:

 hr = g_pRT->CreateBitmap(
D2D1::SizeU(m_format.imageWidthPels, m_format.imageHeightPels),
pBitmapData,
pitch,
D2D1::BitmapProperties( // Format = RGB32 D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_IGNORE)),
&pBitmap );
if (hr ==0){

     SaveToImageFile(&pBitmap);

}

 

 

 

THe SaveToImageFile function is defined as follows: 

 

HRESULT SaveToImageFile(ID2D1Bitmap** bitmap)

{

HRESULT hr = S_OK;

        // Create Factories

        IWICImagingFactory *pWICFactory = NULL;

ID2D1Factory *pD2DFactory = NULL;

       

IWICBitmap *pWICBitmap = NULL;

ID2D1RenderTarget *pRT = NULL;

 

ID2D1GeometrySink *pSink = NULL;

   

IWICBitmapEncoder *pEncoder = NULL;

IWICBitmapFrameEncode *pFrameEncode = NULL;

IWICStream *pStream = NULL;

 

hr = CoCreateInstance(

CLSID_WICImagingFactory,

NULL,

CLSCTX_INPROC_SERVER,

IID_IWICImagingFactory,

reinterpret_cast<void **>(&pWICFactory)

);

 

        if (SUCCEEDED(hr))

        {

hr = D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED, &pD2DFactory);

        }

        // Create IWICBitmap and RT ICFactory->

 

        static const UINT sc_bitmapWidth = 640;

        static const UINT sc_bitmapHeight = 480;

        if (SUCCEEDED(hr))

        {

hr = pWICFactory->CreateBitmap(

sc_bitmapWidth,

sc_bitmapHeight,

GUID_WICPixelFormat32bppBGR,

WICBitmapCacheOnLoad,

&pWICBitmap

);

        }

 

        if (SUCCEEDED(hr))

        {

hr = pD2DFactory->CreateWicBitmapRenderTarget(

pWICBitmap,

D2D1::RenderTargetProperties(),

&pRT

);

        }

        if (SUCCEEDED(hr))

        {

// Render into the bitmap

pRT->BeginDraw();

 

pRT->Clear(D2D1::ColorF(D2D1::ColorF::Green));

 

D2D1_SIZE_F sourceSize = (*bitmap)->GetSize();

D2D1_SIZE_F targetSize = pRT->GetSize();

 

D2D1_PIXEL_FORMAT pixelFormat =  (*bitmap)->GetPixelFormat();

D2D1_RENDER_TARGET_PROPERTIES props = D2D1::RenderTargetProperties();

props.pixelFormat = pixelFormat;

 

if (sourceSize.height == targetSize.height && sourceSize.width == targetSize.width)

{ // The following causes EndDraw to fail:

pRT->DrawBitmap((*bitmap), D2D1::RectF(0,0,sourceSize.width, sourceSize.height),(1.0F),D2D1_BITMAP_INTERPOLATION_MODE_LINEAR);

}

 

hr = pRT->EndDraw();

        }

        if (SUCCEEDED(hr))

        {

 

Going through the Direct2D documentation http://msdn.microsoft.com/en-us/library/windows/desktop/dd370979(v=vs.85).aspx

HRESULT -2003238894 is hex translated into 0x88990012

D2DERR_WRONG_FACTORY - Objects used together were not all created from the same factory instance.

So, How can I persist an ID2D1Bitmap ?

Answer 1

There is a WinRT sample http://code.msdn.microsoft.com/windowsapps/SaveAsImageFile-68073cb0 Direct2D save to image file - but that wont help - Im on Win7

Answer 2

Hello,

Did you mean that you want to save a bitmap in Windows 7 DirectX application? If so, I would suggest you create a new thread in DirectX forum. This forum only talk about the Direct X development in metro app.

Best regards,
Jesse

---

Jesse Jiang [MSFT]
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