/// <summary>
/// The legacy implementation of Rip.
/// </summary>
private static void LegacyRip(LegacyRipOptions options)
{
// Read emulated memory.
var process = new ExternalMemory(Process.GetProcessesByName(options.ProcessName)[0]);
process.ReadRaw((IntPtr)options.MinRamAddress, out var ps2Memory, 0x2000000);
// Parse known file list.
var sizeToFileMap = JsonFile.FromFileAsSizeToFileMap(options.JsonPath);
// Read PCSX2 Logs
using var fileStream = new FileStream(options.LogPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
var logData = new byte[fileStream.Length];
fileStream.Read(logData);
var pcsx2CrashLog = Encoding.UTF8.GetString(logData);
var pcsx2CrashLogInfo = new ParsedCrashLog(pcsx2CrashLog.Replace("\r\n", "\n"));
// Pattern scan for archive:
// Build search string.
var searchPatternBuilder = new StringBuilder($"{(options.GroupNum != -1 ? options.GroupNum.ToString("X8") : "??")} 00 00 00 "); // Note: Assuming less than 255 items!
var groupItemCountBytes = pcsx2CrashLogInfo.Metadata.Select(x => x.NoOfItems).ToArray();
var itemCountPattern = Utilities.BytesToScanPattern(groupItemCountBytes);
searchPatternBuilder.Append(itemCountPattern);
// Scan for potential matches.
var scanner = new Scanner(ps2Memory);
var patterns = Utilities.FindAllPatterns(scanner, new CompiledScanPattern(searchPatternBuilder.ToString()));
int archiveOffset = patterns[0].Offset;
// Handle multiple matches.
if (patterns.Count > 1)
{
// Note: Not tested.
Console.WriteLine("More than 1 match for possible archive data. Trying to reconstruct header and searching for ID. (Note: This code is not yet implemented, exiting!)");
return;
}
// Extract match from memory.
if (sizeToFileMap.TryGetValue(pcsx2CrashLogInfo.FileSize, out var fileInfoList))
{
// Get user picked entry from list.
var entry = RipUserSelectEntryFromList(fileInfoList);
// Save file.
var slice = ps2Memory.AsSpan().Slice(archiveOffset, entry.UncompressedSize);
RipWriteFileToFolder(options.OutputPath, entry, slice);
}
else
{
Console.WriteLine($"No known file in JSON found. File Size from Crashlog: 0x{pcsx2CrashLogInfo.FileSize:X}");
}
}
/// <summary>
/// Creates a signature scanner given a process and a module (EXE/DLL)
/// from which the signatures are to be found.
/// </summary>
/// <param name="process">The process from which</param>
/// <param name="module">An individual module of the given process, which</param>
public Scanner(Process process, ProcessModule module)
{
var externalProcess = new ExternalMemory(process);
externalProcess.ReadRaw(module.BaseAddress, out var data, module.ModuleMemorySize);
_data = data;
_gcHandle = GCHandle.Alloc(data, GCHandleType.Pinned);
_dataPtr = (byte *)_gcHandle.AddrOfPinnedObject();
}
/// <summary>
/// Creates a signature scanner given a process and a module (EXE/DLL)
/// from which the signatures are to be found.
/// </summary>
/// <param name="process">The process from which to scan patterns in. (Not Null)</param>
/// <param name="module">An individual module of the given process, which denotes the start and end of memory region scanned.</param>
public Scanner(Process process, ProcessModule module)
{
// Optimization
if (process.Id == _currentProcess.Id)
{
_dataPtr = (byte *)module.BaseAddress;
_dataLength = module.ModuleMemorySize;
}
else
{
var externalProcess = new ExternalMemory(process);
externalProcess.ReadRaw(module.BaseAddress, out var data, module.ModuleMemorySize);
_gcHandle = GCHandle.Alloc(data, GCHandleType.Pinned);
_dataPtr = (byte *)_gcHandle.Value.AddrOfPinnedObject();
_dataLength = data.Length;
}
}
/// <summary>
/// The new implementation of Rip.
/// </summary>
private static void NewRip(RipOptions options)
{
// Read emulated memory.
var process = new ExternalMemory(Process.GetProcessesByName(options.ProcessName)[0]);
// Parse known file list.
var sizeToFileMap = JsonFile.FromFileAsSizeToFileMap(options.JsonPath);
// Read PCSX2 Logs
using var fileStream = new FileStream(options.LogPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
var logData = new byte[fileStream.Length];
fileStream.Read(logData);
// Get size, address from log.
var pcsx2Log = Encoding.UTF8.GetString(logData);
var memoryDumpRegex = new Regex(@"^Addr: ([\d]*) , Size: ([\d]*), DumpFlagAddr: ([\d]*) [\n\r]+", RegexOptions.Multiline);
var lastMatch = memoryDumpRegex.Matches(pcsx2Log).Last();
var archiveOffset = Convert.ToInt32(lastMatch.Groups[1].Value);
var fileSize = Convert.ToInt32(lastMatch.Groups[2].Value);
var dumpFlagAddr = Convert.ToInt32(lastMatch.Groups[3].Value);
// Extract match from memory.
if (sizeToFileMap.TryGetValue(fileSize, out var fileInfoList))
{
var entry = RipUserSelectEntryFromList(fileInfoList);
process.ReadRaw((IntPtr)(options.MinRamAddress + archiveOffset), out var file, entry.UncompressedSize);
RipWriteFileToFolder(options.OutputPath, entry, file);
}
else
{
Console.WriteLine($"No known file in JSON found. Allowing game to advance.");
}
process.SafeWrite <int>((IntPtr)(options.MinRamAddress + dumpFlagAddr), 1);
}
