implemented Nekopunch PBM images.

ArcFormats/ArcFormats.csproj

@@ -121,6 +121,7 @@
     <Compile Include="HuffmanCompression.cs" />
     <Compile Include="Lambda\ArcLAX.cs" />
     <Compile Include="Maika\ArcBK.cs" />
+    <Compile Include="Nekopunch\ImagePBM.cs" />
     <Compile Include="Nexas\ArcTPF.cs" />
     <Compile Include="LiveMaker\ImageGALX.cs" />
     <Compile Include="Otemoto\ArcTLZ.cs" />

ArcFormats/Nekopunch/ImagePBM.cs

@@ -0,0 +1,69 @@
+//! \file       ImagePBM.cs
+//! \date       2018 Jan 03
+//! \brief      Studio Nekopunch compressed bitmap.
+//
+// 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.ComponentModel.Composition;
+using System.IO;
+using GameRes.Compression;
+
+namespace GameRes.Formats.Nekopunch
+{
+    [Export(typeof(ImageFormat))]
+    public class PbmFormat : ImageFormat
+    {
+        public override string         Tag { get { return "PBM"; } }
+        public override string Description { get { return "Studio Nekopunch compressed bitmap"; } }
+        public override uint     Signature { get { return 0; } }
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            if (!file.Name.HasExtension (".pbm"))
+                return null;
+            var header = file.ReadHeader (8);
+            if (!header.AsciiEqual (5, "BM"))
+                return null;
+            using (var bmp = OpenBitmapStream (file, header.ToUInt32 (0)))
+                return Bmp.ReadMetaData (bmp);
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            using (var bmp = OpenBitmapStream (file, file.Signature))
+                return Bmp.Read (bmp, info);
+        }
+
+        IBinaryStream OpenBitmapStream (IBinaryStream file, uint unpacked_size)
+        {
+            file.Position = 4;
+            Stream input = new LzssStream (file.AsStream, LzssMode.Decompress, true);
+            input = new LimitStream (input, unpacked_size);
+            return new BinaryStream (input, file.Name); 
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("PbmFormat.Write not implemented");
+        }
+    }
+}