From 235476440a0482e863876799f2ee26083eeb5bb8 Mon Sep 17 00:00:00 2001
From: Crayon2000 <crayon1@rocketmail.com>
Date: Sat, 7 Nov 2020 11:45:18 -0500
Subject: [PATCH] Patch widescreen on Wii U

---
 CHANGELOG.md                |  2 +-
 GRRLIB/GRRLIB/GRRLIB_core.c | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e0595fa0..652da760 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
-- TBD
+- Patch widescreen on Wii U
 
 ## [4.4.0] - 2020-01-12
 
diff --git a/GRRLIB/GRRLIB/GRRLIB_core.c b/GRRLIB/GRRLIB/GRRLIB_core.c
index 38e99dff..bd1c9496 100644
--- a/GRRLIB/GRRLIB/GRRLIB_core.c
+++ b/GRRLIB/GRRLIB/GRRLIB_core.c
@@ -24,6 +24,7 @@ THE SOFTWARE.
 #include <malloc.h>
 #include <string.h>
 #include <ogc/conf.h>
+#include <ogc/machine/processor.h>
 #include <fat.h>
 
 #define __GRRLIB_CORE__
@@ -91,6 +92,15 @@ int  GRRLIB_Init (void) {
     rmode->viXOrigin = (VI_MAX_WIDTH_NTSC - 672) / 2;
 #endif
 
+#if defined(HW_RVL)
+     // Patch widescreen on Wii U
+    if (CONF_GetAspectRatio() == CONF_ASPECT_16_9 && (*(u32*)(0xCD8005A0) >> 16) == 0xCAFE)
+    {
+        write32(0xd8006a0, 0x30000004);
+        mask32(0xd8006a8, 0, 2);
+    }
+#endif
+
     // --
     VIDEO_Configure(rmode);