From ce27b2a5db34241f9ec6bba6f09fdc127c6153c8 Mon Sep 17 00:00:00 2001
From: morkt <muvluv.ru@gmail.com>
Date: Sun, 23 Aug 2015 09:50:49 +0400
Subject: [PATCH] YKG image format variation.

---
 ArcFormats/Yuka/ImageYKG.cs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/ArcFormats/Yuka/ImageYKG.cs b/ArcFormats/Yuka/ImageYKG.cs
index 098c8d24..ea93b4aa 100644
--- a/ArcFormats/Yuka/ImageYKG.cs
+++ b/ArcFormats/Yuka/ImageYKG.cs
@@ -63,8 +63,12 @@ namespace GameRes.Formats.Yuka
                 DataOffset = LittleEndian.ToUInt32 (header, 0x28),
                 DataSize   = LittleEndian.ToUInt32 (header, 0x2C)
             };
+            if (0 == ykg.DataOffset)
+                ykg.DataOffset = LittleEndian.ToUInt32 (header, 8);
             if (ykg.DataOffset < 0x30)
                 return null;
+            if (0 == ykg.DataSize)
+                ykg.DataSize = (uint)(stream.Length - ykg.DataOffset);
             ImageMetaData info = null;
             using (var img = new StreamRegion (stream, ykg.DataOffset, ykg.DataSize, true))
             {
@@ -89,10 +93,6 @@ namespace GameRes.Formats.Yuka
                         info = Png.ReadMetaData (png);
                     ykg.Format = YkgImage.Gnp;
                 }
-                else
-                {
-                    return null;
-                }
             }
             if (null == info)
                 return null;