(Legacy): CHR image archives.

Author: morkt

Legacy/Airyu/ArcCHR.cs

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+//! \file       ArcCHR.cs
+//! \date       2018 Apr 08
+//! \brief      Airyu archive format.
+//
+// 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.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.Windows.Media;
+
+namespace GameRes.Formats.Airyu
+{
+    [Export(typeof(ArchiveFormat))]
+    public class ChrOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "CHR/AIRYU"; } }
+        public override string Description { get { return "Airyu resource archive"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool      CanWrite { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (!file.Name.HasExtension (".chr"))
+                return null;
+            int count = (int)(file.MaxOffset / 0x96000);
+            if (!IsSaneCount (count) || count * 0x96000 != file.MaxOffset)
+                return null;
+
+            uint offset = 0;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                var entry = new Entry {
+                    Name = i.ToString ("D5"),
+                    Type = "image",
+                    Offset = offset,
+                    Size = 0x96000,
+                };
+                dir.Add (entry);
+                offset += 0x96000;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
+        {
+            var input = arc.File.CreateStream (entry.Offset, entry.Size);
+            return new ChrImageDecoder (input);
+        }
+    }
+
+    internal class ChrImageDecoder : BinaryImageDecoder
+    {
+        public ChrImageDecoder (IBinaryStream input) : base (input)
+        {
+            Info = new ImageMetaData { Width = 640, Height = 480, BPP = 16 };
+        }
+
+        protected override ImageData GetImageData ()
+        {
+            var pixels = m_input.ReadBytes (0x96000);
+            return ImageData.CreateFlipped (Info, PixelFormats.Bgr555, null, pixels, 640*2);
+        }
+    }
+}