From d8c9d849028fff5f171926e30b7193dc17b25614 Mon Sep 17 00:00:00 2001
From: morkt <muvluv.ru@gmail.com>
Date: Mon, 12 Oct 2015 06:51:49 +0400
Subject: [PATCH] implemented PTI images (BMP with alignment between sections).

---
 ArcFormats/ArcFormats.csproj |  1 +
 ArcFormats/ImagePTI.cs       | 82 ++++++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 ArcFormats/ImagePTI.cs

diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 4b7dc197..f7d9da30 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -71,6 +71,7 @@
     <Compile Include="Ethornell\AudioBGI.cs" />
     <Compile Include="Eushully\ArcALF.cs" />
     <Compile Include="Eushully\ImageAGF.cs" />
+    <Compile Include="ImagePTI.cs" />
     <Compile Include="Lilim\ArcABM.cs" />
     <Compile Include="ActiveSoft\ArcADPACK.cs" />
     <Compile Include="AdvSys\ArcAdvSysT.cs" />
diff --git a/ArcFormats/ImagePTI.cs b/ArcFormats/ImagePTI.cs
new file mode 100644
index 00000000..0cd3c561
--- /dev/null
+++ b/ArcFormats/ImagePTI.cs
@@ -0,0 +1,82 @@
+//! \file       ImagePTI.cs
+//! \date       Sun Oct 11 02:40:54 2015
+//! \brief      Custom BMP format.
+//
+// Copyright (C) 2015 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 GameRes.Utility;
+using System.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.Misc
+{
+    [Export(typeof(ImageFormat))]
+    public class PtiFormat : BmpFormat
+    {
+        public override string         Tag { get { return "PTI"; } }
+        public override string Description { get { return "Custom BMP image"; } }
+        public override uint     Signature { get { return 0; } }
+
+        public override ImageMetaData ReadMetaData (Stream stream)
+        {
+            var header = ReadHeader (stream);
+            if (null == header)
+                return null;
+            using (var bmp = new MemoryStream (header))
+                return base.ReadMetaData (bmp);
+        }
+
+        byte[] ReadHeader (Stream stream)
+        {
+            var header = new byte[0x36];
+            if (0x10 != stream.Read (header, 0, 0x10)
+                || 'B' != header[0] || 'M' != header[1]
+                || 0 != LittleEndian.ToUInt16 (header, 0xE)
+                || 0x28 != stream.Read (header, 0xE, 0x28)
+                || 0x28 != header[0xE])
+                return null;
+            return header;
+        }
+
+        public override ImageData Read (Stream stream, ImageMetaData info)
+        {
+            uint length = (uint)(stream.Length - 0x38);
+            var image = new byte[length+0x38];
+            stream.Read (image, 0, 0x10);
+            stream.Read (image, 0xE, (int)length+0x28);
+            if (24 == info.BPP && length+2 == info.Width * info.Height * 3)
+            {
+                image[image.Length-2] = 0xFF;
+                image[image.Length-1] = 0xFF;
+                length += 2;
+            }
+            LittleEndian.Pack (length+0x36, image, 2);
+            using (var bmp = new MemoryStream (image))
+                return base.Read (bmp, info);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("PtiFormat.Write not implemented");
+        }
+    }
+}