LIB3MFMETHODIMP CCOMModelMeshObject::GetType(_Out_ DWORD * pObjectType)
{
try {
if (pObjectType == nullptr)
throw CNMRException(NMR_ERROR_INVALIDPOINTER);
if (m_pResource.get() == nullptr)
throw CNMRException(NMR_ERROR_RESOURCENOTFOUND);
CModelMeshObject * pObject = getMeshObject();
__NMRASSERT(pObject);
*pObjectType = (DWORD)pObject->getObjectType();
return handleSuccess();
}
catch (CNMRException & Exception) {
return handleNMRException(&Exception);
}
catch (...) {
return handleGenericException();
}
}
LIB3MFMETHODIMP CCOMModelTexture2D::ReadFromStream(_In_ IStream * pStream)
{
try {
if (pStream == nullptr)
throw CNMRException(NMR_ERROR_INVALIDPOINTER);
HRESULT hResult;
CModelTexture2DResource * pTextureResource = getTexture2D();
__NMRASSERT(pTextureResource);
CComPtr<IStream> pMemoryStream = nullptr;
hResult = CreateStreamOnHGlobal(nullptr, true, &pMemoryStream);
if (hResult != S_OK)
throw CNMRException_Windows(NMR_ERROR_COULDNOTCREATESTREAM, hResult);
// Seek Stream
LARGE_INTEGER nOriginPosition;
ULARGE_INTEGER nNewPosition;
nOriginPosition.HighPart = 0;
nOriginPosition.LowPart = 0;
hResult = pStream->Seek(nOriginPosition, STREAM_SEEK_END, &nNewPosition);
if (hResult != S_OK)
throw CNMRException_Windows(NMR_ERROR_COULDNOTSEEKSTREAM, hResult);
nfUint64 cbStreamSize = nNewPosition.QuadPart;
hResult = pStream->Seek(nOriginPosition, STREAM_SEEK_SET, &nNewPosition);
if (hResult != S_OK)
throw CNMRException_Windows(NMR_ERROR_COULDNOTSEEKSTREAM, hResult);
std::array<nfByte, NMR_IMPORTSTREAM_COPYBUFFERSIZE> pBuffer;
nfUint64 cbBytesLeft = cbStreamSize;
while (cbBytesLeft > 0) {
nfUint64 cbLength = cbBytesLeft;
if (cbLength > NMR_IMPORTSTREAM_COPYBUFFERSIZE)
cbLength = NMR_IMPORTSTREAM_COPYBUFFERSIZE;
ULONG cbReadBytes = 0;
ULONG cbWrittenBytes = 0;
hResult = pStream->Read(&pBuffer[0], (nfUint32)cbLength, &cbReadBytes);
if (hResult != S_OK)
throw CNMRException_Windows(NMR_ERROR_COULDNOTREADSTREAM, hResult);
if (cbReadBytes != cbLength)
throw CNMRException(NMR_ERROR_COULDNOTREADFULLDATA);
hResult = pMemoryStream->Write(&pBuffer[0], (nfUint32)cbLength, &cbWrittenBytes);
if (hResult != S_OK)
throw CNMRException_Windows(NMR_ERROR_COULDNOTWRITESTREAM, hResult);
if (cbWrittenBytes != cbLength)
throw CNMRException(NMR_ERROR_COULDNOTWRITEFULLDATA);
cbBytesLeft -= cbLength;
}
PImportStream pImportStream = std::make_shared<CImportStream_COM>(pMemoryStream);
CModel * pModel = pTextureResource->getModel();
__NMRASSERT(pModel);
pModel->removeTextureStream(pTextureResource->getPath());
pModel->addTextureStream(pTextureResource->getPath(), pImportStream);
return handleSuccess();
}
catch (CNMRException & Exception) {
return handleNMRException(&Exception);
}
catch (...) {
return handleGenericException();
}
}
