Method WriteCompressionHeader

IO/XML/vtkXMLWriter.cxx:1395–1423

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//------------------------------------------------------------------------------
int vtkXMLWriter::WriteCompressionHeader()
{
  // Write real compression header back into stream.
  std::streampos returnPosition = this->Stream->tellp();

  // Need to byte-swap header.
  this->PerformByteSwap(this->CompressionHeader->Data(), this->CompressionHeader->WordCount(),
    this->CompressionHeader->WordSize());

  if (!this->Stream->seekp(std::streampos(this->CompressionHeaderPosition)))
  {
    return 0;
  }
  int result = (this->DataStream->StartWriting() &&
    this->DataStream->Write(this->CompressionHeader->Data(), this->CompressionHeader->DataSize()) &&
    this->DataStream->EndWriting());
  this->Stream->flush();
  if (this->Stream->fail())
  {
    this->SetErrorCode(vtkErrorCode::GetLastSystemError());
    return 0;
  }

  if (!this->Stream->seekp(returnPosition))
  {
    return 0;
  }
  return result;
}

//------------------------------------------------------------------------------
size_t vtkXMLWriter::GetOutputWordTypeSize(int dataType)