Added SysEmulationDir to set $(EmulationDir) to custom location.

rpcs3/Emu/FS/VFS.cpp

@@ -5,6 +5,7 @@
 #include "vfsDeviceLocalFile.h"
 #include "Ini.h"
 #include "Emu/System.h"
+#include "Utilities/Log.h"
 
 #undef CreateFile
 
@@ -429,7 +430,11 @@ void VFS::Init(const std::string& path)
 		
 		std::string mpath = entry.path;
 		// TODO: This shouldn't use current dir
-		fmt::Replace(mpath, "$(EmulatorDir)", Emu.GetEmulatorPath());
+		// If no value assigned to SysEmulationDirPath in INI, use the path that with executable.
+		if (Ini.SysEmulationDirPath.GetValue().empty())
+			Ini.SysEmulationDirPath.SetValue(Emu.GetEmulatorPath());
+		LOG_NOTICE(GENERAL, "$(EmulatorDir) binded to %s.", Ini.SysEmulationDirPath.GetValue());
+		fmt::Replace(mpath, "$(EmulatorDir)", Ini.SysEmulationDirPath.GetValue());
 		fmt::Replace(mpath, "$(GameDir)", cwd);
 		Mount(entry.mount, mpath, dev);
 	}

rpcs3/Ini.h

@@ -163,6 +163,9 @@ public:
 	IniEntry<bool> DBGAutoPauseSystemCall;
 	IniEntry<bool> DBGAutoPauseFunctionCall;
 
+	//Customed EmulationDir
+	IniEntry<std::string> SysEmulationDirPath;
+
 	// Language
 	IniEntry<u8> SysLanguage;
 
@@ -240,6 +243,9 @@ public:
 		DBGAutoPauseFunctionCall.Init("DBG_AutoPauseFunctionCall", path);
 		DBGAutoPauseSystemCall.Init("DBG_AutoPauseSystemCall", path);
 
+		// Customed EmulationDir
+		SysEmulationDirPath.Init("System_EmulationDir", path);
+
 		// Language
 		SysLanguage.Init("Sytem_SysLanguage", path);
 	}
@@ -316,6 +322,8 @@ public:
 		// Language
 		SysLanguage.Load(1);
 
+		// Customed EmulationDir
+		SysEmulationDirPath.Load("");
 	}
 
 	void Save()
@@ -389,6 +397,9 @@ public:
 
 		// Language
 		SysLanguage.Save();
+
+		// Customed EmulationDir
+		SysEmulationDirPath.Save();
 	}
 };