PiCMCaptureInterfaceAliasInputData

__int64 __fastcall PiCMCaptureInterfaceAliasInputData(unsigned __int64 a1, unsigned int a2, int a3, __int64 a4){
  int v5; 
  char CallerMode; 
  NTSTATUS UserModeCallersCopy; 
  unsigned __int64 v8; 
  _QWORD *v9; 
  VOID *v10; 
  UINT64 v11; 
  unsigned __int64 v13; 
  UINT64 AllocateDestination; 

  v5 = 0;
  CallerMode = KeGetCurrentThread()->PreviousMode;
  UserModeCallersCopy = 0;
  if( !a1 || !a2 )
  {
    UserModeCallersCopy = -1073741811;
    goto LABEL_19;
  }
  if( a3 )
  {
    if( (a1 & 3) != 0 )
      ExRaiseDatatypeMisalignment();
    v13 = a1 + a2;
    if( v13 > 0x7FFFFFFF0000i64 || v13 < a1 )
      MEMORY[0x7FFFFFFF0000] = 0;
    if( a2 >= 0x24 && *(_DWORD *)a1 == 36 )
    {
      *(_DWORD *)a4 = 40;
      *(_DWORD *)(a4 + 4) = *(_DWORD *)(a1 + 4);
      *(_OWORD *)(a4 + 8) = *(_OWORD *)(a1 + 8);
      *(_QWORD *)(a4 + 24) = *(unsigned int *)(a1 + 24);
      *(_DWORD *)(a4 + 32) = *(_DWORD *)(a1 + 28);
      *(_DWORD *)(a4 + 36) = *(_DWORD *)(a1 + 32);
    }
    else
    {
      UserModeCallersCopy = -1073741811;
    }
  }
  else
  {
    if( (a1 & 7) != 0 )
      ExRaiseDatatypeMisalignment();
    v8 = a1 + a2;
    if( v8 > 0x7FFFFFFF0000i64 || v8 < a1 )
      MEMORY[0x7FFFFFFF0000] = 0;
    if( a2 < 0x28 )
    {
      UserModeCallersCopy = -1073741811;
    }
    else
    {
      *(_OWORD *)a4 = *(_OWORD *)a1;
      *(_OWORD *)(a4 + 16) = *(_OWORD *)(a1 + 16);
      *(_QWORD *)(a4 + 32) = *(_QWORD *)(a1 + 32);
      if( *(_DWORD *)a4 != 40 )
        UserModeCallersCopy = -1073741811;
    }
  }
  if( UserModeCallersCopy >= 0 )
  {
    v9 = (_QWORD *)(a4 + 24);
    v10 = *(VOID **)(a4 + 24);
    *(_QWORD *)(a4 + 24) = 0i64;
    if( v10 )
    {
      v11 = *(unsigned int *)(a4 + 32);
      if( (unsigned int)v11 >= 2 )
      {
        LODWORD(AllocateDestination) = 1;
        UserModeCallersCopy = PiControlMakeUserModeCallersCopy(
                                (VOID **)(a4 + 24),
                                v10,
                                v11,
                                2ui64,
                                CallerMode,
                                AllocateDestination);
        if( UserModeCallersCopy < 0 )
        {
          *v9 = 0i64;
          *(_DWORD *)(a4 + 32) = 0;
        }
        else
        {
          v5 = 1;
          *(_WORD *)(*v9 + 2 * ((unsigned __int64)*(unsigned int *)(a4 + 32) >> 1) - 2) = 0;
        }
LABEL_19:
        if( UserModeCallersCopy >= 0 )
          return(unsigned int)UserModeCallersCopy;
        goto LABEL_36;
      }
      if( *(_DWORD *)(a4 + 32) >= 2u )
        goto LABEL_19;
    }
    else if( !*(_DWORD *)(a4 + 32) )
    {
      goto LABEL_19;
    }
    UserModeCallersCopy = -1073741811;
  }
LABEL_36:
  if( v5 )
    PiControlFreeUserModeCallersBuffer(CallerMode, *(PVOID *)(a4 + 24));
  *(_OWORD *)a4 = 0i64;
  *(_OWORD *)(a4 + 16) = 0i64;
  *(_QWORD *)(a4 + 32) = 0i64;
  return(unsigned int)UserModeCallersCopy;
}

Referenced by: