Method ConvertToFolder

pcsx2-qt/Settings/MemoryCardConvertWorker.cpp:102–167

}

bool MemoryCardConvertWorker::ConvertToFolder(const std::string& srcFileName, const std::string& destFolderName, const MemoryCardFileType type)
{
	const std::string srcPath(Path::Combine(EmuFolders::MemoryCards, srcFileName));
	const std::string destPath(Path::Combine(EmuFolders::MemoryCards, destFolderName));

	FolderMemoryCard targetFolderMemoryCard;
	Pcsx2Config::McdOptions config;
	config.Enabled = true;
	config.Type = MemoryCardType::Folder;

	std::optional<std::vector<u8>> sourceBufferOpt = FileSystem::ReadBinaryFile(srcPath.c_str());

	if (!sourceBufferOpt.has_value())
	{
		Console.Error("%s(%s, %s, %d) Failed to open file Memory Card!", __FUNCTION__, srcFileName.c_str(), destFolderName.c_str(), type);
		return false;
	}

	std::vector<u8> sourceBuffer = sourceBufferOpt.value();
	// Set progress bar to the literal number of bytes in the memcard.
	// Plus two because there is a lag period after the Save calls complete
	// where the progress bar stalls out; this lets us stop the progress bar
	// just shy of 50 and 100% so it seems like it's still doing some work.
	this->SetProgressRange((sourceBuffer.size() * 2) + 2);
	this->SetProgressValue(0);

	// Attempt the write twice. Once with writes being simulated rather than truly committed.
	// Again with actual writes. If a file memcard has a corrupted page or something which would
	// cause the conversion to fail, it will fail on the simulated run, with no files committed
	// to the filesystem yet.
	for (int i = 0; i < 2; i++)
	{
		bool simulateWrites = (i == 0);
		targetFolderMemoryCard.Open(destPath, config, 0, false, "", simulateWrites);

		size_t address = 0;

		while (address < sourceBuffer.size())
		{
			targetFolderMemoryCard.Save(sourceBuffer.data() + address, address, FolderMemoryCard::PageSizeRaw);
			address += FolderMemoryCard::PageSizeRaw;

			// Only report progress every 16 pages. Substantially speeds up the conversion.
			if (address % (FolderMemoryCard::PageSizeRaw * 16) == 0)
				this->SetProgressValue(address + (i * sourceBuffer.size()));
		}

		targetFolderMemoryCard.Close();

		// If the source file Memory Card was larger than 8 MB, the raw copy will have also made the superblock of
		// the destination folder Memory Card larger than 8 MB. For compatibility, we always want folder Memory Cards
		// to report 8 MB, so we'll override that here. Don't do this on the simulated run, only the actual.
		if (!simulateWrites && sourceBuffer.size() != FolderMemoryCard::TotalSizeRaw)
		{
			targetFolderMemoryCard.Open(destPath, config, 0, false, "", simulateWrites);
			targetFolderMemoryCard.SetSizeInMB(8);
			targetFolderMemoryCard.Close();
		}