Function SaveState_UnzipFromDisk

pcsx2/SaveState.cpp:1165–1236

}

bool SaveState_UnzipFromDisk(const std::string& filename, Error* error)
{
	zip_error_t ze = {};
	auto zf = zip_open_managed(filename.c_str(), ZIP_RDONLY, &ze);
	if (!zf)
	{
		Console.Error("Failed to open zip file '%s' for save state load: %s", filename.c_str(), zip_error_strerror(&ze));
		if (zip_error_code_zip(&ze) == ZIP_ER_NOENT)
			Error::SetString(error, "Savestate file does not exist.");
		else
			Error::SetString(error, fmt::format("Savestate zip error: {}", zip_error_strerror(&ze)));

		return false;
	}

	// look for version and screenshot information in the zip stream:
	if (!CheckVersion(filename, zf.get(), error))
		return false;

	// check that all parts are included
	const s64 internal_index = CheckFileExistsInState(zf.get(), EntryFilename_InternalStructures, true);
	s64 entryIndices[std::size(SavestateEntries)];

	// Log any parts and pieces that are missing, and then generate an exception.
	bool allPresent = (internal_index >= 0);
	for (u32 i = 0; i < std::size(SavestateEntries); i++)
	{
		const bool required = SavestateEntries[i]->IsRequired();
		entryIndices[i] = CheckFileExistsInState(zf.get(), SavestateEntries[i]->GetFilename(), required);
		if (entryIndices[i] < 0 && required)
		{
			allPresent = false;
			break;
		}
	}
	if (!allPresent)
	{
		Error::SetString(error, "Some required components were not found or are incomplete.");
		return false;
	}

	PreLoadPrep();

	if (!LoadInternalStructuresState(zf.get(), internal_index, error))
	{
		if (!error->IsValid())
			Error::SetString(error, "Save state corruption in internal structures.");

		VMManager::Reset();
		return false;
	}

	for (u32 i = 0; i < std::size(SavestateEntries); ++i)
	{
		if (entryIndices[i] < 0)
		{
			SavestateEntries[i]->FreezeIn(nullptr);
			continue;