FLT archives and FG images.

2026-07-08 01:30:18 +08:00 · 2018-11-07 10:37:55 +04:00
parent c3f4f81514
commit f990bee101
3 changed files with 366 additions and 0 deletions
--- a/ArcFormats/FrontWing/ArcFG.cs
+++ b/ArcFormats/FrontWing/ArcFG.cs
@@ -0,0 +1,88 @@
+//! \file       ArcFG.cs
+//! \date       2018 Nov 05
+//! \brief      FrontWing multi-layer image.
+//
+// Copyright (C) 2018 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.FrontWing
+{
+    internal class FgEntry : Entry
+    {
+        public ImageMetaData    Info;
+    }
+
+    [Export(typeof(ArchiveFormat))]
+    public class FgOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "FG"; } }
+        public override string Description { get { return "FrontWing multi-layer image"; } }
+        public override uint     Signature { get { return 0x49475746; } } // 'FWGI'
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool      CanWrite { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            var dir = new List<Entry>();
+            uint index_offset = 4;
+            while (index_offset < file.MaxOffset && file.View.ReadInt32 (index_offset) == 1)
+            {
+                var info = new ImageMetaData {
+                    OffsetX = file.View.ReadInt32 (index_offset+8),
+                    OffsetY = file.View.ReadInt32 (index_offset+0xC),
+                    Width   = file.View.ReadUInt32 (index_offset+0x18),
+                    Height  = file.View.ReadUInt32 (index_offset+0x1C),
+                    BPP     = 32,
+                };
+                var name = file.View.ReadString (index_offset+0x20, 0x104);
+                var entry = Create<FgEntry> (Path.GetFileName (name));
+                entry.Info = info;
+                entry.Offset = file.View.ReadUInt32 (index_offset+0x124) + 4;
+                entry.Size   = file.View.ReadUInt32 (index_offset+0x128);
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+                index_offset += 0x1AC;
+            }
+            if (0 == dir.Count)
+                return null;
+            return new ArcFile (file, this, dir);
+        }
+
+        public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
+        {
+            var fgent = (FgEntry)entry;
+            var input = arc.OpenBinaryEntry (entry);
+            var bmp_info = ImageFormat.Bmp.ReadMetaData (input);
+            input.Position = 0;
+            if (null == bmp_info)
+                return ImageFormatDecoder.Create (input);
+            bmp_info.OffsetX = fgent.Info.OffsetX;
+            bmp_info.OffsetY = fgent.Info.OffsetY;
+            return new ImageFormatDecoder (input, ImageFormat.Bmp, bmp_info);
+        }
+    }
+}