feat: SPC-PS2 Image Format

ArcFormats/ArcFormats.csproj

@@ -133,6 +133,7 @@
     <Compile Include="Ism\ImagePNG.cs" />
     <Compile Include="Kid\ArcDATRAW.cs" />
     <Compile Include="Kid\ImageLBG.cs" />
+    <Compile Include="Kid\ImageSPC.cs" />
     <Compile Include="Kogado\ArcARC.cs" />
     <Compile Include="Ice\ImageIBM.cs" />
     <Compile Include="Ice\ScriptISD.cs" />

ArcFormats/Cri/ImageSPC.cs

@@ -33,7 +33,7 @@ namespace GameRes.Formats.Cri
     [Export(typeof(ImageFormat))]
     public class SpcFormat : XtxFormat
     {
-        public override string         Tag { get { return "SPC"; } }
+        public override string         Tag { get { return "SPC/Xbox360"; } }
         public override string Description { get { return "CRI MiddleWare compressed texture format"; } }
         public override uint     Signature { get { return 0; } }
 

ArcFormats/Kid/ImageSPC.cs

@@ -0,0 +1,44 @@
+using GameRes.Compression;
+using System.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.Kid
+{
+    [Export(typeof(ImageFormat))]
+    public class SpcFormat: LbgFormat
+    {
+        public override string Tag { get { return "SPC/PS2"; } }
+        public override string Description { get { return "PS2 CRI MiddleWare compressed texture format"; } }
+        public override uint Signature { get { return 0; } }
+        public SpcFormat()
+        {
+            Extensions = new string[] { "spc" };
+        }
+
+        public override ImageMetaData ReadMetaData(IBinaryStream stream)
+        {
+            uint unpacked_size = stream.Signature;
+            if (unpacked_size <= 0x20 || unpacked_size > 0x5000000) // ~83MB
+                return null;
+            stream.Position = 4;
+            using (var lzss = new LzssStream(stream.AsStream, LzssMode.Decompress, true))
+            using (var input = new SeekableStream(lzss))
+            using (var lbg = new BinaryStream(input, stream.Name))
+                return base.ReadMetaData(lbg);
+        }
+
+        public override ImageData Read(IBinaryStream stream, ImageMetaData info)
+        {
+            stream.Position = 4;
+            using (var lzss = new LzssStream(stream.AsStream, LzssMode.Decompress, true))
+            using (var input = new SeekableStream(lzss))
+            using (var lbg = new BinaryStream(input, stream.Name))
+                return base.Read(lbg, info);
+        }
+
+        public override void Write(Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException("SpcFormat.Write not implemented");
+        }
+    }
+}