(GScripter): added archive format.

ArcFormats/GScripter/ArcDATA.cs

@@ -0,0 +1,80 @@
+//! \file       ArcDATA.cs
+//! \date       2023 Sep 06
+//! \brief      GScripter resource archive.
+//
+// Copyright (C) 2023 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;
+
+namespace GameRes.Formats.GScripter
+{
+    [Export(typeof(ArchiveFormat))]
+    public class DataOpener : ArchiveFormat
+    {
+        public override string         Tag { get => "DAT/GScripter"; }
+        public override string Description { get => "GScripter engine resource archive"; }
+        public override uint     Signature { get => 0; }
+        public override bool  IsHierarchic { get => false; }
+        public override bool      CanWrite { get => false; }
+
+        public DataOpener ()
+        {
+            Extensions = new[] { "" };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            var info_name = file.Name + ".info";
+            if (!VFS.FileExists (info_name))
+                return null;
+            using (var index = VFS.OpenView (info_name))
+            {
+                int count = (int)index.MaxOffset / 0x28;
+                if (!IsSaneCount (count) || count * 0x28 != index.MaxOffset)
+                    return null;
+                var arc_name = Path.GetFileName (file.Name);
+                bool is_cg    = arc_name.StartsWith ("CG");
+                bool is_sound = !is_cg && arc_name.StartsWith ("SOUND");
+                uint index_pos = 0;
+                var dir = new List<Entry> (count);
+                for (int i = 0; i < count; ++i)
+                {
+                    var name = index.View.ReadString (index_pos, 0x20);
+                    var entry = new Entry {
+                        Name = name,
+                        Type = is_cg ? "image" : is_sound ? "audio" : "",
+                        Offset = index.View.ReadUInt32 (index_pos+0x20),
+                        Size   = index.View.ReadUInt32 (index_pos+0x24),
+                    };
+                    if (!entry.CheckPlacement (file.MaxOffset))
+                        return null;
+                    dir.Add (entry);
+                    index_pos += 0x28;
+                }
+                return new ArcFile (file, this, dir);
+            }
+        }
+    }
+}