/// <summary>
/// Recalculate the BND4 headers from entry data.
/// </summary>
public void CalculateHeaders()
{
if (DEBUG)
{
Console.WriteLine("[DEBUG] RECALCULATE HEADERS");
}
// 1st pass, do names
uint cDataOffset = (uint)(Marshal.SizeOf <BND4Header>() + entries.Length * Marshal.SizeOf <BND4EntryHeader>());
foreach (BND4Entry entry in entries)
{
entry.header = new BND4EntryHeader((ulong)entry.data.Length, 0, cDataOffset);
cDataOffset += (isUnicode ? 2U : 1U) * (uint)(entry.name.Length + 1);
}
// Pad cDataOffset to a multiple of 16 bytes
cDataOffset += (16U - cDataOffset % 16U) % 16U;
// Fix main header
header = new BND4Header((uint)entries.Length, cDataOffset, isUnicode);
// 2nd pass, do file offsets
foreach (BND4Entry entry in entries)
{
entry.header.entryDataOffset = cDataOffset;
cDataOffset += (uint)entry.header.entrySize;
// Pad to a multiple of 16 bytes
cDataOffset += (16U - cDataOffset % 16U) % 16U;
}
}
/// <summary>
/// Load a BND4 file into the existing object, overwriting existing data.
/// </summary>
/// <param name="filePath"></param>
public void LoadInPlace(string filePath)
{
Utils.Assert(File.Exists(filePath), "File does not exist");
using (BinReader bin = new BinReader(File.OpenRead(filePath)))
{
if (DEBUG)
{
Console.WriteLine("[DEBUG] READ BND4 HEADERS");
}
header = bin.ReadStruct <BND4Header>();
header.AssertIntegrity();
isUnicode = header.isUnicode;
entries = new BND4Entry[header.fileCnt];
for (int i = 0; i < header.fileCnt; i++)
{
if (DEBUG)
{
Console.WriteLine(string.Format("[DEBUG] READ ENTRY HEADER {0}/{1}", i + 1, header.fileCnt));
}
entries[i] = new BND4Entry();
entries[i].header = bin.ReadStruct <BND4EntryHeader>();
entries[i].header.AssertIntegrity();
if (DEBUG)
{
Console.WriteLine(string.Format("[DEBUG] READ ENTRY NAME {0}/{1}", i + 1, header.fileCnt));
}
bin.StepInto(entries[i].header.entryNameOffset);
entries[i].name = header.isUnicode ? bin.ReadWideString() : bin.ReadShiftJIS();
bin.StepOut();
if (DEBUG)
{
Console.WriteLine(string.Format("[DEBUG] READ ENTRY DATA {0}/{1}", i + 1, header.fileCnt));
}
bin.StepInto(entries[i].header.entryDataOffset);
entries[i].data = bin.ReadBytes((int)entries[i].header.entrySize);
bin.StepOut();
}
if (DEBUG)
{
Console.WriteLine("[DEBUG] READ COMPLETE");
}
}
}
