Beispiel #1
0
TextureClient*
IMFYCbCrImage::GetD3D9TextureClient(CompositableClient* aClient)
{
  IDirect3DDevice9* device = gfxWindowsPlatform::GetPlatform()->GetD3D9Device();

  RefPtr<IDirect3DTexture9> textureY;
  HANDLE shareHandleY = 0;
  if (!UploadData(device, textureY, shareHandleY,
                  mData.mYChannel, mData.mYSize, mData.mYStride)) {
    return nullptr;
  }

  RefPtr<IDirect3DTexture9> textureCb;
  HANDLE shareHandleCb = 0;
  if (!UploadData(device, textureCb, shareHandleCb,
                  mData.mCbChannel, mData.mCbCrSize, mData.mCbCrStride)) {
    return nullptr;
  }

  RefPtr<IDirect3DTexture9> textureCr;
  HANDLE shareHandleCr = 0;
  if (!UploadData(device, textureCr, shareHandleCr,
                  mData.mCrChannel, mData.mCbCrSize, mData.mCbCrStride)) {
    return nullptr;
  }

  RefPtr<IDirect3DQuery9> query;
  HRESULT hr = device->CreateQuery(D3DQUERYTYPE_EVENT, byRef(query));
  hr = query->Issue(D3DISSUE_END);

  int iterations = 0;
  bool valid = false;
  while (iterations < 10) {
    HRESULT hr = query->GetData(nullptr, 0, D3DGETDATA_FLUSH);
    if (hr == S_FALSE) {
      Sleep(1);
      iterations++;
      continue;
    }
    if (hr == S_OK) {
      valid = true;
    }
    break;
  }

  if (!valid) {
    return nullptr;
  }

  RefPtr<DXGIYCbCrTextureClient> texClient =
    new DXGIYCbCrTextureClient(aClient->GetForwarder(), TextureFlags::DEFAULT);
  texClient->InitWith(textureY, textureCb, textureCr,
                      shareHandleY, shareHandleCb, shareHandleCr,
                      GetSize(), mData.mYSize, mData.mCbCrSize);
  mTextureClient = texClient;

  return mTextureClient;
}