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improved HyPack archive version awareness.

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This commit is contained in:
morkt
2015-05-16 19:16:49 +04:00
parent cb870c592a
commit a3f973c1f7
1 changed files with 39 additions and 20 deletions
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59
ArcFormats/ArcKogado.cs
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@@ -64,41 +64,60 @@ namespace GameRes.Formats.Kogado
public override ArcFile TryOpen (ArcView file) public override ArcFile TryOpen (ArcView file)
{ {
if (!file.View.AsciiEqual (0, "HyPack\x00")) if (!file.View.AsciiEqual (0, "HyPack"))
return null; return null;
int version = file.View.ReadByte (7); int version = file.View.ReadUInt16 (6);
if (2 != version && 3 != version) int entry_size;
return null; switch (version)
uint index_offset = 0x10 + file.View.ReadUInt32 (8); {
case 0x100: entry_size = 32; break;
case 0x200: entry_size = 40; break;
case 0x300:
case 0x301: entry_size = 48; break;
default: return null;
}
long index_offset = 0x10 + file.View.ReadUInt32 (8);
if (index_offset >= file.MaxOffset) if (index_offset >= file.MaxOffset)
return null; return null;
uint entry_count = file.View.ReadUInt32 (12); int entry_count = file.View.ReadInt32 (12);
if (entry_count > 0xfffff) if (entry_count <= 0 || entry_count > 0xfffff)
return null; return null;
uint index_size = entry_count * 48; uint index_size = (uint)(entry_count * entry_size);
if (index_size > file.View.Reserve (index_offset, index_size)) if (index_size > file.View.Reserve (index_offset, index_size))
return null; return null;
long data_offset = 0x10; long data_offset = 0x10;
var dir = new List<Entry> ((int)entry_count); var dir = new List<Entry> (entry_count);
for (uint i = 0; i < entry_count; ++i) for (int i = 0; i < entry_count; ++i)
{ {
string name = file.View.ReadString (index_offset, 0x15); string name = file.View.ReadString (index_offset, 0x15);
string ext = file.View.ReadString (index_offset+0x15, 3); string ext = file.View.ReadString (index_offset+0x15, 3);
var entry = new KogadoEntry { Name = name+'.'+ext }; if (0 == name.Length)
name = i.ToString ("D5");
if (0 != ext.Length)
name += '.'+ext;
var entry = new KogadoEntry { Name = name };
entry.Type = FormatCatalog.Instance.GetTypeFromName (entry.Name); entry.Type = FormatCatalog.Instance.GetTypeFromName (entry.Name);
entry.Offset = data_offset + file.View.ReadUInt32 (index_offset + 0x18); entry.Offset = data_offset + file.View.ReadUInt32 (index_offset + 0x18);
entry.UnpackedSize = file.View.ReadUInt32 (index_offset + 0x1c); if (version >= 0x200)
entry.Size = file.View.ReadUInt32 (index_offset + 0x20); {
entry.UnpackedSize = file.View.ReadUInt32 (index_offset + 0x1c);
entry.Size = file.View.ReadUInt32 (index_offset + 0x20);
entry.CompressionType = file.View.ReadByte (index_offset + 0x24);
entry.IsPacked = 0 != entry.CompressionType;
if (version >= 0x300)
{
entry.HasCheckSum = 0 != file.View.ReadByte (index_offset + 0x25);
entry.CheckSum = file.View.ReadUInt16 (index_offset + 0x26);
entry.FileTime = file.View.ReadInt64 (index_offset + 0x28);
}
}
else
entry.Size = file.View.ReadUInt32 (index_offset + 0x1c);
if (!entry.CheckPlacement (file.MaxOffset)) if (!entry.CheckPlacement (file.MaxOffset))
return null; return null;
entry.CompressionType = file.View.ReadByte (index_offset + 0x24);
entry.HasCheckSum = 0 != file.View.ReadByte (index_offset + 0x25);
entry.CheckSum = file.View.ReadUInt16 (index_offset + 0x26);
entry.FileTime = file.View.ReadInt64 (index_offset + 0x28);
entry.IsPacked = 0 != entry.CompressionType;
dir.Add (entry); dir.Add (entry);
index_offset += 48; index_offset += entry_size;
} }
return new ArcFile (file, this, dir); return new ArcFile (file, this, dir);
} }
@@ -141,7 +160,7 @@ namespace GameRes.Formats.Kogado
var unpacked = new byte[packed_entry.UnpackedSize]; var unpacked = new byte[packed_entry.UnpackedSize];
var mariel = new MarielEncoder(); var mariel = new MarielEncoder();
mariel.Unpack (input, unpacked, unpacked.Length); mariel.Unpack (input, unpacked, unpacked.Length);
return new MemoryStream (unpacked, false); return new MemoryStream (unpacked);
} }
finally finally
{ {