From 892abc85899dce24e61a4f2682b4554967a972f9 Mon Sep 17 00:00:00 2001
From: ekeeke31 <ekeeke31@fcb46045-4337-0410-a722-cd382f7ce8f6>
Date: Sun, 15 Jan 2012 19:54:19 +0000
Subject: [PATCH] fixed default manual scaling for Master System

---
 source/gx/gx_video.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/source/gx/gx_video.c b/source/gx/gx_video.c
index 1ab503c..2e0fcdb 100644
--- a/source/gx/gx_video.c
+++ b/source/gx/gx_video.c
@@ -482,10 +482,16 @@ static void gxSetAspectRatio(int *xscale, int *yscale)
     {
       /* overscan is simulated (black) */
       *yscale = vheight / 2;
+
+      /* adjust when Genesis & Wii/GC video height does not match */
       if (vdp_pal && (!gc_pal || config.render))
+      {
         *yscale = *yscale * 240 / 288;
+      }
       else if (!vdp_pal && gc_pal && !config.render)
+      {
         *yscale = *yscale * 288 / 240;
+      }
     }
 
     /* horizontal borders */
@@ -517,7 +523,11 @@ static void gxSetAspectRatio(int *xscale, int *yscale)
     }
     else
     {
-      *yscale = (gc_pal && !config.render) ? 134 : 112;
+      *yscale = (vheight == 192) ? 96 : 112;
+      if (gc_pal && !config.render)
+      {
+        *yscale = (*yscale * 134) / 112; 
+      }
     }
 
     /* horizontal borders */