HRESULT CSurfaceQueueDeviceD3D10::CreateSharedSurface(
UINT Width, UINT Height,
DXGI_FORMAT format,
IUnknown** ppUnknown,
HANDLE* pHandle)
{
ASSERT(m_pDevice);
ASSERT(ppUnknown);
ASSERT(pHandle);
if (NULL == m_pDevice || NULL == ppUnknown || NULL == pHandle)
{
return E_FAIL;
}
HRESULT hr;
ID3D10Texture2D** ppTexture = (ID3D10Texture2D**)ppUnknown;
D3D10_TEXTURE2D_DESC Desc;
Desc.Width = Width;
Desc.Height = Height;
Desc.MipLevels = 1;
Desc.ArraySize = 1;
Desc.Format = format;
Desc.SampleDesc.Count = 1;
Desc.SampleDesc.Quality = 0;
Desc.Usage = D3D10_USAGE_DEFAULT;
Desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
Desc.CPUAccessFlags = 0;
Desc.MiscFlags = D3D10_RESOURCE_MISC_SHARED;
hr = m_pDevice->CreateTexture2D(&Desc, NULL, ppTexture);
if (SUCCEEDED(hr))
{
if (FAILED( GetSharedHandle(*ppUnknown, pHandle)))
{
(*ppTexture)->Release();
(*ppTexture) = NULL;
}
}
return hr;
}
void D3DImageEx::SetBackBufferEx(D3DResourceTypeEx resourceType, IntPtr pResource)
{
/* Check if the user just wants to clear the D3DImage backbuffer */
if(pResource == IntPtr::Zero)
{
SetBackBuffer(D3DResourceType::IDirect3DSurface9, IntPtr::Zero);
return;
}
IUnknown *pUnk = (IUnknown*)pResource.ToPointer();
IUnknown *pUnkResource = NULL;
UINT width = 0;
UINT height = 0;
DXGI_FORMAT format = DXGI_FORMAT_UNKNOWN;
/* D3D version specific stuffs */
switch(resourceType)
{
case D3DResourceTypeEx::ID3D10Texture2D:
{
::ID3D10Texture2D *pTexture2D = NULL;
/* Query for IUNKNOWN for ID3D10Texture2D */
if(FAILED(pUnk->QueryInterface(__uuidof(::ID3D10Texture2D), (void**)&pTexture2D)))
throw gcnew ArgumentException("Must pass a valid resource","pResource");
/* Get the texture description. This is needed to recreate
* the surface in the 9Ex device */
D3D10_TEXTURE2D_DESC textureDesc;
pTexture2D->GetDesc(&textureDesc);
width = textureDesc.Width;
height = textureDesc.Height;
format = textureDesc.Format;
pUnkResource = pTexture2D;
pTexture2D->Release();
}
break;
case D3DResourceTypeEx::ID3D11Texture2D:
{
::ID3D11Texture2D *pTexture2D = NULL;
/* Query for IUNKNOWN for ID3D11Texture2D */
if(FAILED(pUnk->QueryInterface(__uuidof(::ID3D11Texture2D), (void**)&pTexture2D)))
throw gcnew ArgumentException("Must pass a valid resource","pResource");
/* Get the texture description. This is needed to recreate
* the surface in the 9Ex device */
D3D11_TEXTURE2D_DESC textureDesc;
pTexture2D->GetDesc(&textureDesc);
width = textureDesc.Width;
height = textureDesc.Height;
format = textureDesc.Format;
pUnkResource = pTexture2D;
pTexture2D->Release();
}
break;
default:
throw gcnew ArgumentOutOfRangeException("resourceType");
break;
}
/* The shared handle of the D3D resource */
HANDLE hSharedHandle = NULL;
/* Shared texture pulled through the 9Ex device */
IDirect3DTexture9* pTexture = NULL;
/* Shared surface, pulled through the shared texture */
IDirect3DSurface9* pSurface;
/* Get the shared handle for the given resource */
if(FAILED(GetSharedHandle(pUnkResource, &hSharedHandle)))
throw gcnew Exception("Could not aquire shared resource handle");
/* Get the shared surface. In this case its really a texture =X */
if(FAILED(GetSharedSurface(hSharedHandle, (void**)&pTexture, width, height, format)))
throw gcnew Exception("Could not create shared resource");
/* Get surface level 0, which we need for the D3DImage */
if (FAILED(pTexture->GetSurfaceLevel(0, &pSurface)))
throw gcnew Exception("Could not get surface level");
/* Done with the texture */
pTexture->Release();
Lock();
/* Set the backbuffer of the D3DImage */
SetBackBuffer(D3DResourceType::IDirect3DSurface9, IntPtr(pSurface));
Unlock();
pSurface->Release();
}
