Unity binary file deserialization.cpp

Unity binary file deserialization.cpp

//The current format is stored in the endianess of the platform that records it, and then swizzled into place in the editor strings are then handled specially
//Here are some sniplets from the current deserialization:

int dataIsLittleEndian = *((*bitstream)++);
 bool shouldswap = UNITY_LITTLE_ENDIAN ? dataIsLittleEndian == 0 : dataIsLittleEndian != 0;
 if(shouldswap)
 {
  int* ptr = *bitstream;
  while(ptr < endBuffer)
   SwapEndianBytes(*(ptr++));
 }
 int version = *((*bitstream)++);
 if(version != kProfilerDataStreamVersion)
  return false;
 frame->Deserialize(bitstream, shouldswap);
 
 //Frame::Deserialize:
 frameIndex = *((*bitstream)++);
 realFrame = *((*bitstream)++);
 m_StartTimeUS = *((*bitstream)++);
 m_TotalCPUTimeInMicroSec = *((*bitstream)++);
 m_TotalGPUTimeInMicroSec = *((*bitstream)++);
 allStats.Deserialize(bitstream, swapdata);

 ReadArray(bitstream, m_AudioInstanceInfo);
 ReadArray(bitstream, m_AudioInstanceNames);

 if(swapdata)
  SwapBufferU32((UInt32*)&m_AudioInstanceNames[0], m_AudioInstanceNames.size() / 4);

 int threadCount = *((*bitstream)++);
 for (int t = 0; t < m_ThreadCount; ++t)
 {
  tdata.m_GroupName = DeserializeString (bitstream, swapdata);
  tdata.m_ThreadName = DeserializeString (bitstream, swapdata);
  tdata.m_AllSamples.resize_uninitialized(*((*bitstream)++));
  
  for(size_t i = 0; i < tdata.m_AllSamples.size(); i++)
  {
   tdata.m_AllSamples[i].timeUS = *((*bitstream)++);
   tdata.m_AllSamples[i].startTimeUS = *((*bitstream)++);
   tdata.m_AllSamples[i].nbChildren = *((*bitstream)++);
   tdata.m_AllSamples[i].information = NULL;
  }

  tdata.m_GPUTimeSamples.resize_uninitialized(*((*bitstream)++));
  for(size_t i = 0; i < tdata.m_GPUTimeSamples.size(); i++)
  {
   tdata.m_GPUTimeSamples[i].gpuTimeInMicroSec = *((*bitstream)++);
   tdata.m_GPUTimeSamples[i].relatedSampleIndex = *((*bitstream)++);
   tdata.m_GPUTimeSamples[i].gpuSection = (GpuSection)(*((*bitstream)++));
   tdata.m_GPUTimeSamples[i].timerQuery = NULL;
  }
 
  // m_InstanceIDSamples are not written, since the IDs are not portable
  tdata.m_InstanceIDSamples.resize_uninitialized(0);
  ReadArray(bitstream, tdata.m_AllocatedGCMemorySamples);
  for(size_t i = 0; i < tdata.m_AllSamples.size(); i++)
   ReadConditionaly(bitstream, tdata.m_AllSamples[i].information, swapdata);

  ReadArray(bitstream, tdata.m_WarningSamples);
 }