private static ModuleFileHeaderStruct ReadAndValidateFileHeader(BinaryReader reader)
{
var header = new ModuleFileHeaderStruct();
header.Read(reader);
ValidateHeader(header);
return(header);
}
private static int[] ReadResourceEntries(BinaryReader reader, ModuleFileHeaderStruct header)
{
var files = new int[header.ResourceCount];
for (var i = 0; i < header.ResourceCount; i++)
{
files[i] = reader.ReadInt32();
}
return(files);
}
private static void ValidateHeader(ModuleFileHeaderStruct header)
{
if (header.Magic != ModuleFileHeaderStruct.ExpectedMagic)
{
throw new InvalidDataException($"Invalid module magic {header.Magic}");
}
if (header.Version != ModuleFileHeaderStruct.ExpectedVersion)
{
throw new InvalidDataException($"Unsupported module version {header.Version}");
}
}
private static ModuleEntryStruct[] ReadFileEntries(BinaryReader reader, ModuleFileHeaderStruct header)
{
var entries = new ModuleEntryStruct[header.FileCount];
for (var i = 0; i < header.FileCount; i++)
{
var entry = new ModuleEntryStruct();
entry.Read(reader);
entries[i] = entry;
}
return(entries);
}
private static ModuleCompressedBlockStruct[] ReadCompressedBlocks(BinaryReader reader, ModuleFileHeaderStruct header)
{
var blocks = new ModuleCompressedBlockStruct[header.CompressedBlockCount];
for (var i = 0; i < header.CompressedBlockCount; i++)
{
var block = new ModuleCompressedBlockStruct();
block.Read(reader);
blocks[i] = block;
}
return(blocks);
}
private static StringBlob ReadStringTable(BinaryReader reader, ModuleFileHeaderStruct header)
{
var bytes = reader.ReadBytes((int)header.StringTableSize);
return(new StringBlob(Encoding.UTF8, bytes));
}