From 2d9eceadfe8a62eb16b8c9dea7b321c7b1d2cfc5 Mon Sep 17 00:00:00 2001
From: morkt <muvluv.ru@gmail.com>
Date: Fri, 17 Mar 2017 16:01:38 +0400
Subject: [PATCH] implemented access to Leaf multi-frame images.

---
 ArcFormats/ArcFormats.csproj |  1 +
 ArcFormats/Leaf/ArcPX.cs     | 75 ++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+)
 create mode 100644 ArcFormats/Leaf/ArcPX.cs

diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 831a37ed..a491f7bf 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -103,6 +103,7 @@
     <Compile Include="GameSystem\AudioADP4.cs" />
     <Compile Include="Kaas\ArcPB.cs" />
     <Compile Include="Kaas\AudioKAAS.cs" />
+    <Compile Include="Leaf\ArcPX.cs" />
     <Compile Include="Malie\ArcLIBU.cs" />
     <Compile Include="Qlie\DelphiDeserializer.cs" />
     <Compile Include="Qlie\Encryption.cs" />
diff --git a/ArcFormats/Leaf/ArcPX.cs b/ArcFormats/Leaf/ArcPX.cs
new file mode 100644
index 00000000..a7c24a2f
--- /dev/null
+++ b/ArcFormats/Leaf/ArcPX.cs
@@ -0,0 +1,75 @@
+//! \file       ArcPX.cs
+//! \date       Thu Mar 16 15:16:57 2017
+//! \brief      Leaf multi-frame image format.
+//
+// Copyright (C) 2017 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;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.Leaf
+{
+    [Export(typeof(ArchiveFormat))]
+    public class PxOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "PX/LEAF"; } }
+        public override string Description { get { return "Leaf multi-frame image"; } }
+        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.View.ReadUInt16 (0x10) != 0x80 || !file.View.AsciiEqual (0x14, "Leaf"))
+                return null;
+            int count = file.View.ReadInt32 (0);
+            if (!IsSaneCount (count))
+                return null;
+
+            var base_name = Path.GetFileNameWithoutExtension (file.Name);
+            uint index_offset = 0x20;
+            uint base_offset = (uint)count * 4 + index_offset;
+            var dir = new List<Entry> (count);
+            long next_offset = base_offset + file.View.ReadUInt32 (index_offset);
+            for (int i = 0; i < count; ++i)
+            {
+                index_offset += 4;
+                var entry = new Entry {
+                    Name = string.Format ("{0}#{1:D4}", base_name, i),
+                    Type = "image",
+                    Offset = next_offset,
+                };
+                if (i+1 < count)
+                    next_offset = base_offset + file.View.ReadUInt32 (index_offset);
+                else
+                    next_offset = file.MaxOffset;
+                entry.Size = (uint)(next_offset - entry.Offset);
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+            }
+            return new ArcFile (file, this, dir);
+        }
+    }
+}