Implement GetRegionCode and add the RegionCode to settings (#999)

This implement `GetRegionCode` accordingly to RE. I've added a setting in the GUI and a field in the Configuration file with a way to update the Configuration file if needed.

2 files changed, 23 insertions, 0 deletions

diff --git a/Ryujinx.HLE/HOS/SystemState/SystemRegion.cs b/Ryujinx.HLE/HOS/SystemState/SystemRegion.cs
new file mode 100644
index 00000000..9a07a4a8
--- /dev/null
+++ b/Ryujinx.HLE/HOS/SystemState/SystemRegion.cs
@@ -0,0 +1,16 @@
+namespace Ryujinx.HLE.HOS.SystemState
+{
+    public enum SystemRegion
+    {
+        Japan,
+        USA,
+        Europe,
+        Australia,
+        China,
+        Korea,
+        Taiwan,
+
+        Min = Japan,
+        Max = Taiwan
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.HLE/HOS/SystemState/SystemStateMgr.cs b/Ryujinx.HLE/HOS/SystemState/SystemStateMgr.cs
index c2e6680d..b65d1030 100644
--- a/Ryujinx.HLE/HOS/SystemState/SystemStateMgr.cs
+++ b/Ryujinx.HLE/HOS/SystemState/SystemStateMgr.cs
@@ -37,6 +37,8 @@ namespace Ryujinx.HLE.HOS.SystemState
 
         internal long DesiredLanguageCode { get; private set; }
 
+        internal uint DesiredRegionCode { get; private set; }
+
         public TitleLanguage DesiredTitleLanguage { get; private set; }
 
         internal string ActiveAudioOutput { get; private set; }
@@ -79,6 +81,11 @@ namespace Ryujinx.HLE.HOS.SystemState
             }
         }
 
+        public void SetRegion(SystemRegion region)
+        {
+            DesiredRegionCode = (uint)region;
+        }
+
         public void SetAudioOutputAsTv()
         {
             ActiveAudioOutput = AudioOutputs[0];