public LGPWrapper(IntPtr handle, string name, RuntimeProfile profile)
{
if (!AnyOverridesFor(name, profile))
{
System.Diagnostics.Debug.WriteLine("LGPWrapper: no overrides for {0}, early out", (object)name);
return; //optimisation, don't run anything else, if no override files
}
IsActive = true;
System.Diagnostics.Debug.WriteLine(" LGPWrapper: Parsing");
var fs = new System.IO.FileStream(new Microsoft.Win32.SafeHandles.SafeFileHandle(handle, false), FileAccess.Read);
ProcMonParser.DataFile df = ProcMonParser.FF7Files.LoadLGP(fs, name);
fs.Position = 0;
Dictionary <string, int> sortKeys = df.Items.ToDictionary(i => i.Name, i => i.Index, StringComparer.InvariantCulture);
Dictionary <string, long> dataKeys = df.Items.ToDictionary(i => i.Name, i => i.Start, StringComparer.InvariantCulture);
Dictionary <string, int> filesSizes = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase);
Dictionary <string, int> filesOptions = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase);
Dictionary <string, ProcMonParser.DataItem> lgpItems = df.Items.ToDictionary(i => i.Name, i => i, StringComparer.InvariantCulture);
foreach (var item in df.Items)
{
filesOptions[item.Name] = 0;
filesSizes[item.Name] = item.Length - 24;
RuntimeLog.Write("Checking chunk support for {0}~{1}~", name, item.Name);
if (profile.Mods.Any(m => m.SupportsChunks(System.IO.Path.Combine(name, item.Name))))
{
filesSizes[item.Name] = Math.Max(filesSizes[item.Name], 1024 * 1024 * 2); //This is a horrible hack. TODO.
filesOptions[item.Name] |= 0x1;
}
}
System.Diagnostics.Debug.WriteLine(" LGPWrapper: Prepared structures");
List <string> names = profile.Mods.SelectMany(m => m.GetPathOverrideNames(name)).Distinct(StringComparer.InvariantCultureIgnoreCase).ToList();
foreach (string fname in names)
{
if (fname.IndexOf(".chunk.", StringComparison.InvariantCultureIgnoreCase) >= 0)
{
continue;
}
if (!filesSizes.ContainsKey(fname))
{
filesSizes[fname] = 0;
System.Diagnostics.Debug.WriteLine("Added LGP file {0} {1}", name, fname);
}
var overrides = profile.Mods.SelectMany(m => m.GetOverrides(System.IO.Path.Combine(name, fname)));
foreach (var over in overrides)
{
filesSizes[fname] = Math.Max(filesSizes[fname], over.Size);
if (over.CFolder == null)
{
break;
}
}
}
List <LGPEntry> entries = filesSizes.Select(kv => new LGPEntry(kv.Key, kv.Value)).ToList();
List <LGP.LGPEntryMade> newentries;
System.Diagnostics.Debug.WriteLine(" LGPWrapper: creating new headers");
byte[] headers = LGP.CalculateHeaders(entries,
s => {
int index;
sortKeys.TryGetValue(s, out index);
return(index);
},
s => {
long index;
dataKeys.TryGetValue(s, out index);
return((uint)index);
},
out newentries
);
int datastart = headers.Length;
System.Diagnostics.Debug.WriteLine(" LGPWrapper: Calculated new LGP headers for {0} with {1} file entries", name, entries.Count);
/*
* int datastart = df.Items[0].Start;
* byte[] headers = new byte[datastart];
* fs.Read(headers, 0, datastart);
* fs.Position = 0;
*/
uint offset = (uint)datastart;
VFile = new VFile();
try {
VFile.Add(new VRangeInline()
{
Start = 0, Length = offset, Data = headers, Tag = "Headers"
});
int count = 0;
foreach (var item in newentries.OrderBy(em => em.DataIndex))
{
RuntimeLog.Write("LGPWrapper calculate {0}", item.Entry.Name);
//Bytes.WriteUInt(headers, 16 + 20 + 27 * item.Index, offset);
string fn = System.IO.Path.Combine(name, item.Entry.Name);
var overrides = profile.Mods.SelectMany(m => m.GetOverrides(fn));
int fOptions;
filesOptions.TryGetValue(item.Entry.Name, out fOptions);
bool chunked = (fOptions & 0x1) != 0;
//var overrides = Enumerable.Empty<OverrideFile>();
//System.Diagnostics.Debug.WriteLine("Virtualizing LGP entry {0} at offset {1}", item.Entry.Name, offset);
if (item.DataOffset != offset)
{
throw new Exception("LGPWrapper mismatch on offset for " + item.Entry.Name + " offset=" + offset + " hoffset=" + item.DataOffset);
}
if (chunked)
{
long pos = lgpItems[item.Entry.Name].Start + 24;
int len = lgpItems[item.Entry.Name].Length - 24;
VFile.Add(new VRangeChunked(item.Entry.Name, profile.Mods, handle, (uint)pos, len)
{
Start = offset,
Length = (uint)(item.Entry.MaxSize + 24),
Name = fn,
Tag = "Chunked"
});
//System.Diagnostics.Debug.WriteLine("File {0} initialized with chunks", item.Entry.Name, 0);
offset += (uint)item.Entry.MaxSize + 24;
}
else if (!overrides.Any()) //take from original LGP
{
long pos = lgpItems[item.Entry.Name].Start;
VFile.Add(new VRangeHandle()
{
Start = offset, Length = (uint)(item.Entry.MaxSize + 24), Handle = handle, Offset = (uint)pos, Tag = item.Entry.Name
});
offset += (uint)item.Entry.MaxSize + 24;
//System.Diagnostics.Debug.WriteLine("--VRangeHandle");
}
else if (overrides.First().CFolder == null) //only one override, replace directly
{
var ov = overrides.First();
byte[] fheader = new byte[24];
System.Text.Encoding.ASCII.GetBytes(item.Entry.Name, 0, item.Entry.Name.Length, fheader, 0);
Bytes.WriteUInt(fheader, 20, (uint)ov.Size);
VFile.Add(new VRangeInline()
{
Start = offset, Length = 24, Data = fheader, Tag = item.Entry.Name + "%header"
});
offset += 24;
VRange vr;
if (ov.Archive == null)
{
var vf = new VRangeFile()
{
Start = offset, Length = (uint)ov.Size, Filename = ov.File, Tag = ov.File
};
VFile.Add(vf);
_wFiles.Add(vf);
vr = vf;
//System.Diagnostics.Debug.WriteLine("LGP entry {0} coming from file {1}", item.Entry.Name, ov.File);
}
else
{
vr = new VRangeArchive()
{
Start = offset, Length = (uint)ov.Size, File = ov.File, Archive = ov.Archive, Tag = ov.File
};
VFile.Add(vr);
//System.Diagnostics.Debug.WriteLine("LGP entry {0} coming from archive file {1} with size {2}", item.Entry.Name, ov.File, ov.Size);
}
//if (vr.Length != item.Entry.MaxSize)
//System.Diagnostics.Debug.WriteLine("Entry {0} size difference {1} vs {2}", item.Entry.Name, vr.Length, item.Entry.MaxSize);
if (vr.Length < item.Entry.MaxSize)
{
uint diff = (uint)item.Entry.MaxSize - vr.Length;
VFile.Add(new VRangeNull()
{
Length = diff, Start = vr.Start + vr.Length, Tag = "Padding"
});
}
offset += (uint)item.Entry.MaxSize;
//System.Diagnostics.Debug.WriteLine("--VRangeFile");
}
else //multiple overrides; tricky!
//System.Diagnostics.Debug.WriteLine("Add VRangeConditional for " + item.Entry.Name);
{
ProcMonParser.DataItem di;
lgpItems.TryGetValue(item.Entry.Name, out di);
uint fbOffset = (di == null) ? 0 : (uint)di.Start;
var vcond = new VRangeConditional(item.Entry.Name, overrides.ToList(), handle, fbOffset)
{
Length = (uint)item.Entry.MaxSize + 24, Start = offset, Name = item.Entry.Name, Tag = item.Entry.Name
};
VFile.Add(vcond);
_wFiles.Add(vcond);
offset += (uint)item.Entry.MaxSize + 24;
//System.Diagnostics.Debug.WriteLine("--VRangeConditional");
}
count++;
/*
* string file = MapFile(System.IO.Path.Combine(name, item.Name), profile);
* if (file != null) {
* uint length = (uint)new System.IO.FileInfo(file).Length;
* byte[] fheader = new byte[24];
* System.Text.Encoding.ASCII.GetBytes(item.Name, 0, item.Name.Length, fheader, 0);
* Bytes.WriteUInt(fheader, 20, length);
* VFile.Add(new VRangeInline() { Start = offset, Length = 24, Data = fheader });
* offset += 24;
* var vf = new VRangeFile() { Start = offset, Length = length, Filename = file };
* VFile.Add(vf);
* _wFiles.Add(vf);
* offset += length;
* } else {
* VFile.Add(new VRangeHandle() { Start = offset, Length = (uint)(item.Length), Handle = handle, Offset = (uint)item.Start });
* offset += (uint)item.Length;
* }*/
}
byte[] footer = System.Text.Encoding.ASCII.GetBytes("FINAL FANTASY7");
VFile.Add(new VRangeInline()
{
Start = offset, Length = (uint)footer.Length, Data = footer, Tag = "footer"
});
System.Diagnostics.Debug.WriteLine("Created: " + VFile.ToString());
} catch {
VFile.Dump();
throw;
}
}
public override void Read(uint offset, uint length, IntPtr dest, ref uint bytesRead)
{
//System.Diagnostics.Debug.WriteLine("Conditional {2} reading from OS {0} L {1}", offset, length, Name);
bool header = (offset < 24);
bool init = (offset == 24);
if ((!_lastHeader && header) || (init && !_lastInit)) //re-evaluate
{
_current = null;
if (!_handle.Equals(IntPtr.Zero))
{
Win32.CloseHandle(_handle);
}
_handle = IntPtr.Zero;
foreach (var of in _files)
{
if (of.CFolder == null || of.CFolder.IsActive(of.CName))
{
System.Diagnostics.Debug.WriteLine("Conditional {0} switching to {1}", Name, of.File);
_current = of;
Bytes.WriteInt(_header, 20, of.Size);
break;
}
}
if (_current == null)
{
System.Diagnostics.Debug.WriteLine("Conditional {0} switching to fallback", Name, Name);
}
_lastInit = true; //we're ready to read file headers
}
else
{
_lastInit = init;
}
if (_current != null && _handle.Equals(IntPtr.Zero) && _current.Archive == null)
{
_handle = Wrap.CreateFile(_current.File, System.IO.FileAccess.Read, System.IO.FileShare.Read, IntPtr.Zero, System.IO.FileMode.Open, System.IO.FileAttributes.Normal, IntPtr.Zero);
}
_lastHeader = header;
_access = DateTime.Now;
if (_current == null) //read from fallback
//System.Diagnostics.Debug.WriteLine("Conditional reading from fallback handle {0} with extra offset {1}", _fallbackHandle, _fallbackOffset);
{
Win32.OVERLAPPED ov = new Win32.OVERLAPPED()
{
EventHandle = IntPtr.Zero,
Internal = UIntPtr.Zero,
InternalHigh = UIntPtr.Zero,
Offset = _fallbackOffset + offset,
OffsetHigh = 0
};
Win32.ReadFile(_fallbackHandle, dest, length, ref bytesRead, ref ov);
//System.Diagnostics.Debug.WriteLine("Conditional {1} reading from fallback - {0} bytes read", bytesRead, Name);
}
else
{
if (offset < 24)
{
length = Math.Min(length, 24 - offset);
System.Runtime.InteropServices.Marshal.Copy(_header, (int)offset, dest, (int)length);
bytesRead = length;
//System.Diagnostics.Debug.WriteLine("Conditional {2} reading from cheader - {0} bytes read [current size is {1}]", bytesRead, BitConverter.ToInt32(_header, 20), Name);
return;
}
else
{
offset -= 24;
if (_current.Archive == null)
{
Wrap.SetFilePointer(_handle, (int)offset, IntPtr.Zero, Wrap.EMoveMethod.Begin);
Win32.ReadFile(_handle, dest, length, ref bytesRead, IntPtr.Zero);
//System.Diagnostics.Debug.WriteLine("Conditional {1} reading from cfile - {0} bytes read", bytesRead, Name);
}
else
{
_current.Archive.RawRead(_current.File, offset, length, dest, ref bytesRead);
//System.Diagnostics.Debug.WriteLine("Conditional {1} reading from cfile archive offset {2} length {3} - {0} bytes read", bytesRead, Name, offset, length);
}
}
}
}