//----------------------------------------------------------------------------
//! @brief バックバッファを設定します。
//! @param buff : バックバッファ用バッファへのポインタ
//! @param size : バッファのサイズを渡す変数へのポインタ。@n
//! buffがNULLの時、ここに欲しいサイズが返る
//! @return エラーコード
//----------------------------------------------------------------------------
HRESULT TBufferRenderer::SetBackBuffer( BYTE *buff, long *size )
{
if( m_State == State_Running )
return S_FALSE;
CAutoLock cAutoLock(&m_BufferLock); // クリティカルセクション
if( buff == NULL && size != NULL )
{
*size = GetBufferSize();
return S_OK;
}
if( buff == NULL || size == NULL )
return E_POINTER;
if( (*size) != GetBufferSize() )
return E_INVALIDARG;
FreeBackBuffer();
SetBackBuffer(buff);
return S_OK;
}
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();
}
