From 6dd35ab2d2bd1a6ccf7c9da9c1fb7180d878ce29 Mon Sep 17 00:00:00 2001
From: morkt <morkt@users.noreply.github.com>
Date: Mon, 5 Nov 2018 05:06:41 +0400
Subject: [PATCH] implemented Leaf 'KCAP' archives.

---
 ArcFormats/ArcFormats.csproj |   1 +
 ArcFormats/Leaf/ArcPAK.cs    | 109 +++++++++++++++++++++++++++++++++++
 2 files changed, 110 insertions(+)
 create mode 100644 ArcFormats/Leaf/ArcPAK.cs

diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 18565198..1b51605c 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -194,6 +194,7 @@
     <Compile Include="KiriKiri\YuzCrypt.cs" />
     <Compile Include="Lambda\ArcLAX.cs" />
     <Compile Include="Lambda\ImageCLS.cs" />
+    <Compile Include="Leaf\ArcPAK.cs" />
     <Compile Include="Lilim\ImageIMG.cs" />
     <Compile Include="LiveMaker\ArcGALX.cs" />
     <Compile Include="Aims\ArcPACK.cs" />
diff --git a/ArcFormats/Leaf/ArcPAK.cs b/ArcFormats/Leaf/ArcPAK.cs
new file mode 100644
index 00000000..9ada5d04
--- /dev/null
+++ b/ArcFormats/Leaf/ArcPAK.cs
@@ -0,0 +1,109 @@
+//! \file       ArcPAK.cs
+//! \date       2018 Nov 04
+//! \brief      Leaf resource archive.
+//
+// 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.IO;
+using GameRes.Compression;
+
+namespace GameRes.Formats.Leaf
+{
+    [Export(typeof(ArchiveFormat))]
+    public class KcapOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "PAK/KCAP"; } }
+        public override string Description { get { return "Leaf resource archive"; } }
+        public override uint     Signature { get { return 0x5041434B; } } // 'KCAP'
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool      CanWrite { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            int count = file.View.ReadInt32 (12);
+            if (!IsSaneCount (count))
+                return null;
+            uint index_offset = 0x10;
+            uint index_size = (uint)count * 0x2C;
+            if (file.View.Reserve (index_offset, index_size) < index_size)
+                return null;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                uint size = file.View.ReadUInt32 (index_offset+0x28);
+                if (size != 0)
+                {
+                    var name = file.View.ReadString (index_offset+4, 0x18);
+                    var entry = Create<PackedEntry> (name);
+                    entry.Offset = file.View.ReadUInt32 (index_offset+0x24);
+                    entry.Size   = size;
+                    if (!entry.CheckPlacement (file.MaxOffset))
+                        return null;
+                    entry.IsPacked = file.View.ReadInt32 (index_offset) != 0;
+                    dir.Add (entry);
+                }
+                index_offset += 0x2C;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            var pent = entry as PackedEntry;
+            if (null == pent || !pent.IsPacked)
+                return base.OpenEntry (arc, entry);
+            if (0 == pent.UnpackedSize)
+                pent.UnpackedSize = arc.File.View.ReadUInt32 (entry.Offset+4);
+            var input = arc.File.CreateStream (entry.Offset+8, entry.Size-8);
+            return new LzssStream (input);
+        }
+
+        public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
+        {
+            if (!entry.Name.HasExtension (".tga"))
+                return base.OpenImage (arc, entry);
+            var input = arc.OpenBinaryEntry (entry);
+            try
+            {
+                var header = input.ReadHeader (18);
+                if (0 == header[16])
+                    header[16] = 32;
+                if (0 == header[17] && 32 == header[16])
+                    header[17] = 8;
+                Stream tga_input = new StreamRegion (input.AsStream, 18);
+                tga_input = new PrefixStream (header.ToArray(), tga_input);
+                var tga = new BinaryStream (tga_input, entry.Name);
+                var info = ImageFormat.Tga.ReadMetaData (tga);
+                if (info != null)
+                {
+                    tga.Position = 0;
+                    return new ImageFormatDecoder (tga, ImageFormat.Tga, info);
+                }
+            }
+            catch { /* ignore errors */ }
+            input.Position = 0;
+            return ImageFormatDecoder.Create (input);
+        }
+    }
+}