/** @brief Write DemoFileHeader
Write the DemoFileHeader at the start of the file and restores the original
position in the file afterwards. */
unsigned int CDemoRecorder::WriteFileHeader(bool updateStreamLength)
{
#ifdef _MSC_VER // MSVC8 behaves strange if tell/seek is called before anything has been written
const bool empty = (demoStream.str() == "");
const unsigned int pos = empty? 0 : demoStream.tellp();
#else
const unsigned int pos = demoStream.tellp();
#endif
DemoFileHeader tmpHeader;
memcpy(&tmpHeader, &fileHeader, sizeof(fileHeader));
if (!updateStreamLength)
tmpHeader.demoStreamSize = 0;
tmpHeader.swab(); // to little endian
#ifdef _MSC_VER
if (!empty)
#endif
{
demoStream.seekp(0);
}
demoStream.write((char*) &tmpHeader, sizeof(tmpHeader));
demoStream.seekp(pos);
return pos;
}
/** @brief Write DemoFileHeader
Write the DemoFileHeader at the start of the file and restores the original
position in the file afterwards. */
void CDemoRecorder::WriteFileHeader(bool updateStreamLength)
{
int pos = recordDemo.tellp();
recordDemo.seekp(0);
DemoFileHeader tmpHeader;
memcpy(&tmpHeader, &fileHeader, sizeof(fileHeader));
if (!updateStreamLength)
tmpHeader.demoStreamSize = 0;
tmpHeader.swab(); // to little endian
recordDemo.write((char*)&tmpHeader, sizeof(tmpHeader));
recordDemo.seekp(pos);
}
