Method PakFile

Sources/Shared/IO/PakFile.cpp:367–383

#endif

	PakFile::PakFile(StringView path)
	{
		std::unique_ptr<Stream> s = std::make_unique<FileStream>(path, FileAccess::Read);
		DEATH_ASSERT(s->GetSize() > FooterSize + 8, "Invalid .pak file", );

		// Header size is 18 bytes
		std::int64_t footerPosition = s->Seek(-FooterSize, SeekOrigin::End);
		DEATH_ASSERT(footerPosition >= 0, ".pak file must be opened from seekable stream", );

		std::uint8_t signature[sizeof(Signature)];
		s->Read(signature, sizeof(signature));
		
		// If signature doesn't match, try to find .pak embedded in PE/ELF executable
		if DEATH_UNLIKELY(std::memcmp(signature, Signature, sizeof(Signature)) != 0) {
			footerPosition = FindRelocatedFooter(s);
			DEATH_ASSERT(footerPosition >= 0, "Invalid .pak file", );
		}

		std::uint16_t fileVersion = s->ReadValueAsLE<std::uint16_t>();
		DEATH_ASSERT(fileVersion == Version, "Unsupported .pak file version", );