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(PacOpener): decompress CMP1-compressed scripts.

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This commit is contained in:
morkt 2015-08-21 02:22:29 +04:00
parent 18e7d1f849
commit 7213e8d61e
2 changed files with 36 additions and 6 deletions
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4
ArcFormats/Properties/AssemblyInfo.cs
View File

@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion ("1.1.9.400")]
[assembly: AssemblyFileVersion ("1.1.9.400")]
[assembly: AssemblyVersion ("1.1.9.401")]
[assembly: AssemblyFileVersion ("1.1.9.401")]

38
ArcFormats/RiddleSoft/ArcPAC.cs
View File

@ -29,6 +29,7 @@ using System.Text;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using GameRes.Formats.Strings;
using System;
namespace GameRes.Formats.Riddle
{
@ -49,16 +50,30 @@ namespace GameRes.Formats.Riddle
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (4);
if (count <= 0 || count > 0xfffff)
if (!IsSaneCount (count))
return null;
long index_offset = 8;
uint base_offset = (uint)(count*0x20 + 8);
uint index_offset = 8;
long base_offset = count*0x20 + 8;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
string name = file.View.ReadString (index_offset, 0x10);
var entry = FormatCatalog.Instance.CreateEntry (name);
uint size = file.View.ReadUInt32 (index_offset+0x10);
var entry = new PackedEntry { Name = name };
if (name.EndsWith (".scp", StringComparison.InvariantCultureIgnoreCase))
{
entry.Type = "script";
entry.IsPacked = size > 12 && file.View.AsciiEqual (index_offset+0x14, "CMP1");
}
else
{
entry.Type = FormatCatalog.Instance.GetTypeFromName (name);
entry.IsPacked = false;
}
if (entry.IsPacked)
entry.UnpackedSize = file.View.ReadUInt32 (index_offset+0x18);
else
entry.UnpackedSize = size;
entry.Offset = base_offset;
entry.Size = size;
if (!entry.CheckPlacement (file.MaxOffset))
@ -69,5 +84,20 @@ namespace GameRes.Formats.Riddle
}
return new ArcFile (file, this, dir);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var pentry = entry as PackedEntry;
if (null == pentry || !pentry.IsPacked
|| !arc.File.View.AsciiEqual (entry.Offset, "CMP1"))
return arc.File.CreateStream (entry.Offset, entry.Size);
int unpacked_size = arc.File.View.ReadInt32 (entry.Offset+4);
using (var input = arc.File.CreateStream (entry.Offset+12, entry.Size-12))
{
var reader = new CmpReader (input, (int)entry.Size, unpacked_size);
reader.Unpack();
return new MemoryStream (reader.Data);
}
}
}
}