Hello everyone,

I'm trying to incorporate my direct2D engine in direct3D app. Microsoft has snippets of how to make direct2D render on DXGISurface but that example is very incomplete and one must always guess what object types Microsoft is using.

The result is that when I try to get back buffer from swap chain the program stops working and I get no errors from DXErr functions. Later I noticed that swap chain pointer is NULL so I think the error occurs while creating swap chain or even earlier.

If you have an idea of whats happening that my program crashes, please let me know. I'll be very grateful.

Link of Microsoft example: http://msdn.microsoft.com/en-us/library/windows/desktop/dd370966(v=vs.85).aspx

My code according to example code:

D3D10_FEATURE_LEVEL1 lvls[1] = {
	D3D10_FEATURE_LEVEL_10_0
};
IDXGIAdapter* adapter = 0;
HRESULT hr = D3D10CreateDevice1(adapter, D3D10_DRIVER_TYPE_HARDWARE, NULL, NULL, D3D10_FEATURE_LEVEL_10_0, D3D10_1_SDK_VERSION, &device);
if(FAILED(hr))
{
	MessageBox(0, DX::DXGetErrorDescription(hr), DX::DXGetErrorString(hr), MB_OK);
}

if(SUCCEEDED(hr))
{
	hr = device->QueryInterface(&device1);
}
if(SUCCEEDED(hr))
{
	hr = device->QueryInterface(&dxgiDevice);
}
if(SUCCEEDED(hr))
{
	hr = dxgiDevice->GetAdapter(&adapter);
}
if(SUCCEEDED(hr))
{
	hr = adapter->GetParent(IID_PPV_ARGS(&dxgiFactory));
	if(FAILED(hr))
	{
		MessageBox(0, DX::DXGetErrorDescription(hr), DX::DXGetErrorString(hr), MB_OK);
	}
}
if(SUCCEEDED(hr))
{
	DXGI_SWAP_CHAIN_DESC swapDesc;
	::ZeroMemory(&swapDesc, sizeof(swapDesc));

	swapDesc.BufferDesc.Width = Window->GetRect().GetSize()->GetX();
	swapDesc.BufferDesc.Height = Window->GetRect().GetSize()->GetY();;
	swapDesc.BufferDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
	swapDesc.BufferDesc.RefreshRate.Numerator = 60;
	swapDesc.BufferDesc.RefreshRate.Denominator = 1;
	swapDesc.SampleDesc.Count = 1;
	swapDesc.SampleDesc.Quality = 0;
	swapDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
	swapDesc.BufferCount = 1;
	swapDesc.OutputWindow = Window->GetHWND();
	swapDesc.Windowed = TRUE;

	hr = dxgiFactory->CreateSwapChain(device, &swapDesc, &swapChain);
	if(FAILED(hr))
	{
		MessageBox(0, DX::DXGetErrorDescription(hr), DX::DXGetErrorString(hr), MB_OK);
	}
}

std::cout << swapChain << " " << surface << std::endl;
hr = swapChain->GetBuffer(0, IID_PPV_ARGS(&surface));
if(FAILED(hr))
{
	MessageBox(0, DX::DXGetErrorDescription(hr), DX::DXGetErrorString(hr), MB_OK);
}

hr = D2D1CreateFactory((D2D1_FACTORY_TYPE)sdx.MultiThreaded, &factory);
if(FAILED(hr))
{
	MessageBox(0, DX::DXGetErrorDescription(hr), DX::DXGetErrorString(hr), MB_OK);
}
Eagle2D::recti rc = Window->GetRect();
/*factory->CreateHwndRenderTarget(
	D2D1::RenderTargetProperties(),
	D2D1::HwndRenderTargetProperties(Window->GetHWND(),
	D2D1::SizeU(rc.GetSize()->GetX(), rc.GetSize()->GetY())), &rt);*/
float dpiX, dpiY;
factory->GetDesktopDpi(&dpiX, &dpiY);
D2D1_RENDER_TARGET_PROPERTIES props =
	D2D1::RenderTargetProperties(
	D2D1_RENDER_TARGET_TYPE_HARDWARE,
	D2D1::PixelFormat(DXGI_FORMAT_UNKNOWN, D2D1_ALPHA_MODE_PREMULTIPLIED),
	dpiX, dpiY);
hr = factory->CreateDxgiSurfaceRenderTarget(surface, props, &rt);
if(FAILED(hr))
{
	MessageBox(0, DX::DXGetErrorDescription(hr), DX::DXGetErrorString(hr), MB_OK);
}

rt->CreateSolidColorBrush(Eagle2D::Color::DarkGrey._GetDirect2DColor(), &defBrush);

private members of Direct2D class:

ID2D1Factory* factory;
ID2D1SolidColorBrush* defBrush;
ID2D1RenderTarget* rt;
IWICImagingFactory* imageFactory;

ID3D10Device1* device;
IDXGIFactory1* device1;
IDXGISwapChain* swapChain;
IDXGIDevice* dxgiDevice;
IDXGIFactory* dxgiFactory;
IDXGISurface* surface;