implemented IAR and WAR archives.

ArcFormats/Sas5/ArcWAR.cs

@@ -0,0 +1,135 @@
+//! \file       ArcWAR.cs
+//! \date       Fri Oct 23 19:11:56 2015
+//! \brief      Sas5 engine audio archive.
+//
+// Copyright (C) 2015 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
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Sas5
+{
+    internal class WarEntry : Entry
+    {
+        public int  Format;
+    }
+
+    [Export(typeof(ArchiveFormat))]
+    public class WarOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "WAR/SAS5"; } }
+        public override string Description { get { return "SAS5 engine audio archive"; } }
+        public override uint     Signature { get { return 0x20726177; } } // 'war '
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public WarOpener ()
+        {
+            Extensions = new string[] { "war" };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            int count = file.View.ReadInt32 (8);
+            if (!IsSaneCount (count))
+                return null;
+            uint entry_size = file.View.ReadUInt32 (12);
+            if (entry_size < 0x18)
+                return null;
+
+            var index = Sec5Opener.LookupIndex (file.Name);
+            string base_name = Path.GetFileNameWithoutExtension (file.Name);
+            Func<int, string> GetEntryName;
+            if (null == index)
+                GetEntryName = n => GetDefaultName (base_name, n);
+            else
+                GetEntryName = (n) => {
+                    Entry entry;
+                    if (index.TryGetValue (n, out entry))
+                        return entry.Name;
+                    return GetDefaultName (base_name, n);
+                };
+
+            uint index_offset = 0x10;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                var entry = new WarEntry {
+                    Name    = GetEntryName (i),
+                    Offset  = file.View.ReadUInt32 (index_offset),
+                    Size    = file.View.ReadUInt32 (index_offset+4),
+                    Format  = file.View.ReadByte (index_offset+0x14),
+                };
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                if (0 == entry.Format)
+                {
+                    entry.Name = Path.ChangeExtension (entry.Name, "wav");
+                    entry.Type = "audio";
+                }
+                else if (2 == entry.Format)
+                {
+                    entry.Name = Path.ChangeExtension (entry.Name, "ogg");
+                    entry.Type = "audio";
+                }
+                dir.Add (entry);
+                index_offset += entry_size;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            var went = entry as WarEntry;
+            if (null == went || 0 != went.Format)
+                return arc.File.CreateStream (entry.Offset, entry.Size);
+
+            uint fmt_size = arc.File.View.ReadUInt32 (entry.Offset);
+            uint data_size = arc.File.View.ReadUInt32 (entry.Offset+4);
+            var wav_header = new byte[8+12+fmt_size+8];
+            uint total_size = (uint)wav_header.Length + data_size - 8;
+            arc.File.View.Read (entry.Offset+8, wav_header, 0x14, fmt_size);
+            using (var mem = new MemoryStream (wav_header))
+            using (var buffer = new BinaryWriter (mem))
+            {
+                buffer.Write (AudioFormat.Wav.Signature);
+                buffer.Write (total_size);
+                buffer.Write (0x45564157); // 'WAVE'
+                buffer.Write (0x20746d66); // 'fmt '
+                buffer.Write (fmt_size);
+                buffer.BaseStream.Seek (fmt_size, SeekOrigin.Current);
+                buffer.Write (0x61746164); // 'data'
+                buffer.Write (data_size);
+            }
+            var pcm_data = arc.File.CreateStream (entry.Offset+8+fmt_size, entry.Size-8-fmt_size);
+            return new PrefixStream (wav_header, pcm_data);
+        }
+
+        static string GetDefaultName (string base_name, int n)
+        {
+            return string.Format ("{0}#{1:D5}", base_name, n);
+        }
+    }
+}