/// <summary>
/// Checks whether the buffer size for a file about to be loaded is sufficient and
/// conditonally returns an address to a new buffer with adequate size.
/// </summary>
/// <returns>The address of a new buffer for the game to decompress a file to</returns>
private static void *CheckBufferSize(int fileIndex, void *addressToDecompressTo, ONEFILE *thisPointer)
{
if (fileIndex >= 2)
{
// Get pointer and length.
IntPtr onePointer = (IntPtr)thisPointer[0].InternalDataPointer - 0xC; // The start of file pointer is sometimes unused, so we use the InternalDataPointer instead and offset.
int fileLength = thisPointer[0].FileLength;
// Now the ONE File
MemoryONEArchive memoryOneFile = MemoryONEArchive.ParseONEFromMemory(onePointer, fileLength);
// Now we estimate the size of it.
int actualFileIndex = fileIndex - 2;
MemoryONEFile oneFile = memoryOneFile.Files[actualFileIndex];
byte[] oneFileCopy = GameProcess.ReadMemory((IntPtr)oneFile.CompressedDataPointer, oneFile.DataLength);
int oneFileLength = Prs.Estimate(ref oneFileCopy);
// Check if the size of allocation is sufficient.
MemoryAddressDetails addressDetails = Allocator.GetAddressDetails((int)addressToDecompressTo);
if (addressDetails.MemorySize < oneFileLength)
{
// Allocate some new data for me please
addressToDecompressTo = (void *)Allocator.Allocate((int)addressToDecompressTo, oneFileLength);
}
}
return(addressToDecompressTo);
}
