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(Seraphim): added variable archive schemes.

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restore scrambled images.
This commit is contained in:
morkt 2017-12-14 10:56:33 +04:00
parent dfb56d21ce
commit 38e18c6976
1 changed files with 151 additions and 9 deletions
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160
ArcFormats/Seraphim/ArcSeraph.cs
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@ -2,7 +2,7 @@
//! \date Fri Jul 17 13:47:34 2015
//! \brief Seraphim engine resource archives.
//
// Copyright (C) 2015 by morkt
// Copyright (C) 2015-2017 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
@ -27,11 +27,45 @@ using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Text.RegularExpressions;
using System.Linq;
using System.Windows.Media;
using GameRes.Compression;
namespace GameRes.Formats.Seraphim
{
internal class ArchEntry : PackedEntry
{
public short DirIndex;
public short FileIndex;
}
[Serializable]
public class SeraphScheme : ResourceScheme
{
public IDictionary<string, ArchPacScheme> KnownSchemes;
}
[Serializable]
public class ArchPacScheme
{
public long IndexOffset;
public short EventDir;
public IDictionary<short, short> EventMap;
}
internal class SeraphArchive : ArcFile
{
public readonly short EventDir;
public readonly IDictionary<short, short> EventMap;
public SeraphArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, ArchPacScheme scheme)
: base (arc, impl, dir)
{
EventDir = scheme.EventDir;
EventMap = scheme.EventMap;
}
}
/// <summary>
/// this archive format has different index offsets hardcoded into game executable.
/// </summary>
@ -50,9 +84,6 @@ namespace GameRes.Formats.Seraphim
Extensions = new string[] { "dat" };
}
// const long ArchPacOffset = 0x0C23659F;
const long ArchPacOffset = 0x0A0B0AEA;
public override ArcFile TryOpen (ArcView file)
{
if (file.MaxOffset > uint.MaxValue)
@ -61,7 +92,23 @@ namespace GameRes.Formats.Seraphim
if (!name.Equals ("ArchPac.dat", StringComparison.InvariantCultureIgnoreCase))
return null;
long index_offset = ArchPacOffset;
foreach (var scheme in KnownSchemes.Values.Where (s => s.IndexOffset < file.MaxOffset))
{
var dir = ReadIndex (file, scheme);
if (dir != null)
{
if (scheme.EventMap != null)
return new SeraphArchive (file, this, dir, scheme);
else
return new ArcFile (file, this, dir);
}
}
return null;
}
List<Entry> ReadIndex (ArcView file, ArchPacScheme scheme)
{
long index_offset = scheme.IndexOffset;
int base_count = file.View.ReadInt32 (index_offset);
int file_count = file.View.ReadInt32 (index_offset + 4);
index_offset += 8;
@ -90,8 +137,13 @@ namespace GameRes.Formats.Seraphim
index_offset += 4;
for (int i = 0; i < base_offsets[j].Item2; ++i)
{
var entry = new PackedEntry { Name = string.Format ("{0}-{1:D5}.cts", j, i), Type = "image" };
entry.Offset = next_offset;
var entry = new ArchEntry {
Name = FormatEntryName (j, i),
Type = "image",
DirIndex = (short)j,
FileIndex = (short)i,
Offset = next_offset,
};
next_offset = file.View.ReadUInt32 (index_offset);
index_offset += 4;
if (next_offset < entry.Offset)
@ -106,7 +158,7 @@ namespace GameRes.Formats.Seraphim
}
if (0 == dir.Count)
return null;
return new ArcFile (file, this, dir);
return dir;
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
@ -121,5 +173,95 @@ namespace GameRes.Formats.Seraphim
return input;
return new ZLibStream (input, CompressionMode.Decompress);
}
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
{
var sarc = arc as SeraphArchive;
var aent = entry as ArchEntry;
if (null == sarc || null == aent || null == sarc.EventMap
|| aent.DirIndex != sarc.EventDir || !sarc.EventMap.ContainsKey (aent.FileIndex))
return base.OpenImage (arc, entry);
var base_index = sarc.EventMap[aent.FileIndex];
var base_entry = sarc.Dir.Cast<ArchEntry>()
.FirstOrDefault (e => e.DirIndex == sarc.EventDir && e.FileIndex == base_index);
if (null == base_entry)
return base.OpenImage (arc, entry);
var base_img = OpenCtImage (arc, base_entry);
if (null == base_img)
return base.OpenImage (arc, entry);
var input = arc.OpenBinaryEntry (entry);
return new CtOverlayDecoder (input, base_img);
}
SeraphReader OpenCtImage (ArcFile arc, Entry entry)
{
using (var input = arc.OpenBinaryEntry (entry))
{
if (input.Signature != CtFormat.Value.Signature)
return null;
var info = CtFormat.Value.ReadMetaData (input) as SeraphMetaData;
if (null == info)
return null;
var reader = new SeraphReader (input.AsStream, info);
reader.UnpackCt();
return reader;
}
}
internal static string FormatEntryName (int dir_index, int file_index)
{
return string.Format ("{0}-{1:D5}.cts", dir_index, file_index);
}
internal static ResourceInstance<ImageFormat> CtFormat = new ResourceInstance<ImageFormat> ("CT");
SeraphScheme m_scheme = new SeraphScheme { KnownSchemes = new Dictionary<string, ArchPacScheme>() };
public override ResourceScheme Scheme
{
get { return m_scheme; }
set { m_scheme = (SeraphScheme)value; }
}
public IDictionary<string, ArchPacScheme> KnownSchemes { get { return m_scheme.KnownSchemes; } }
}
internal class CtOverlayDecoder : BinaryImageDecoder
{
SeraphReader m_baseline;
public CtOverlayDecoder (IBinaryStream input, SeraphReader baseline)
: base (input, baseline.Info)
{
m_baseline = baseline;
}
protected override ImageData GetImageData ()
{
var info = ArchPacOpener.CtFormat.Value.ReadMetaData (m_input) as SeraphMetaData;
if (null == info)
return ImageFormat.Read (m_input);
var overlay = new SeraphReader (m_input.AsStream, info);
overlay.UnpackCt();
var dst = m_baseline.Data;
var src = overlay.Data;
if (dst.Length != src.Length)
return ImageData.Create (overlay.Info, PixelFormats.Bgra32, null, src);
for (int i = 0; i < src.Length; i += 4)
{
if (src[i+3] != 0)
{
dst[i ] = src[i ];
dst[i+1] = src[i+1];
dst[i+2] = src[i+2];
dst[i+3] = src[i+3];
}
else
{
dst[i+3] = 0xFF;
}
}
return ImageData.Create (Info, PixelFormats.Bgra32, null, dst);
}
}
}