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      1 #include "pch.h"
      2 #include "Direct3DContentProvider.h"
      3 
      4 using namespace PhoneXamlDirect3DApp1Comp;
      5 
      6 Direct3DContentProvider::Direct3DContentProvider(Direct3DInterop^ controller) :
      7     m_controller(controller)
      8 {
      9     m_controller->RequestAdditionalFrame += ref new RequestAdditionalFrameHandler([=] ()
     10         {
     11             if (m_host)
     12             {
     13                 m_host->RequestAdditionalFrame();
     14             }
     15         });
     16 
     17     m_controller->RecreateSynchronizedTexture += ref new RecreateSynchronizedTextureHandler([=] ()
     18         {
     19             if (m_host)
     20             {
     21                 m_host->CreateSynchronizedTexture(m_controller->GetTexture(), &m_synchronizedTexture);
     22             }
     23         });
     24 }
     25 
     26 // IDrawingSurfaceContentProviderNative interface
     27 HRESULT Direct3DContentProvider::Connect(_In_ IDrawingSurfaceRuntimeHostNative* host)
     28 {
     29     m_host = host;
     30 
     31     return m_controller->Connect(host);
     32 }
     33 
     34 void Direct3DContentProvider::Disconnect()
     35 {
     36     m_controller->Disconnect();
     37     m_host = nullptr;
     38     m_synchronizedTexture = nullptr;
     39 }
     40 
     41 HRESULT Direct3DContentProvider::PrepareResources(_In_ const LARGE_INTEGER* presentTargetTime, _Out_ BOOL* contentDirty)
     42 {
     43     return m_controller->PrepareResources(presentTargetTime, contentDirty);
     44 }
     45 
     46 HRESULT Direct3DContentProvider::GetTexture(_In_ const DrawingSurfaceSizeF* size, _Out_ IDrawingSurfaceSynchronizedTextureNative** synchronizedTexture, _Out_ DrawingSurfaceRectF* textureSubRectangle)
     47 {
     48     HRESULT hr = S_OK;
     49 
     50     if (!m_synchronizedTexture)
     51     {
     52         hr = m_host->CreateSynchronizedTexture(m_controller->GetTexture(), &m_synchronizedTexture);
     53     }
     54 
     55     // Set output parameters.
     56     textureSubRectangle->left = 0.0f;
     57     textureSubRectangle->top = 0.0f;
     58     textureSubRectangle->right = static_cast<FLOAT>(size->width);
     59     textureSubRectangle->bottom = static_cast<FLOAT>(size->height);
     60 
     61     m_synchronizedTexture.CopyTo(synchronizedTexture);
     62 
     63     // Draw to the texture.
     64     if (SUCCEEDED(hr))
     65     {
     66         hr = m_synchronizedTexture->BeginDraw();
     67 
     68         if (SUCCEEDED(hr))
     69         {
     70             hr = m_controller->GetTexture(size, synchronizedTexture, textureSubRectangle);
     71         }
     72 
     73         m_synchronizedTexture->EndDraw();
     74     }
     75 
     76     return hr;
     77 }