From 187d4bd4f2d84b407acec55af382537c8b7c1c22 Mon Sep 17 00:00:00 2001
From: morkt <morkt@users.noreply.github.com>
Date: Thu, 4 Oct 2018 07:52:18 +0400
Subject: [PATCH] (GRD): take absolute width/height values.

---
 ArcFormats/Tmr-Hiro/ImageGRD.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ArcFormats/Tmr-Hiro/ImageGRD.cs b/ArcFormats/Tmr-Hiro/ImageGRD.cs
index 2e36581b..aaf3cc0b 100644
--- a/ArcFormats/Tmr-Hiro/ImageGRD.cs
+++ b/ArcFormats/Tmr-Hiro/ImageGRD.cs
@@ -70,8 +70,8 @@ namespace GameRes.Formats.TmrHiro
             int bottom  = header.ToUInt16 (0xE);
             var info = new GrdMetaData {
                 Format      = header.ToUInt16 (0),
-                Width       = (uint)(right-left),
-                Height      = (uint)(bottom-top),
+                Width       = (uint)System.Math.Abs (right - left),
+                Height      = (uint)System.Math.Abs (bottom - top),
                 BPP         = bpp,
                 OffsetX     = left,
                 OffsetY     = screen_height - bottom,