ControllerEmu: Make BackgroundInput a global setting through the virtualization

This will allow us to simplify the checks for background input and push
them further down into the architecture, into the ControllerEmu layer.

The new setting isn't actually used yet, though.

Source/Core/Core/ConfigManager.cpp

@@ -150,6 +150,7 @@ void SConfig::SaveSettings()
 	SaveCoreSettings(ini);
 	SaveMovieSettings(ini);
 	SaveDSPSettings(ini);
+	SaveInputSettings(ini);
 	SaveFifoPlayerSettings(ini);
 
 	ini.Save(File::GetUserPath(F_DOLPHINCONFIG_IDX));
@@ -329,6 +330,13 @@ void SConfig::SaveDSPSettings(IniFile& ini)
 	dsp->Set("CaptureLog", m_DSPCaptureLog);
 }
 
+void SConfig::SaveInputSettings(IniFile& ini)
+{
+	IniFile::Section* input = ini.GetOrCreateSection("Input");
+
+	input->Set("BackgroundInput", m_BackgroundInput);
+}
+
 void SConfig::SaveFifoPlayerSettings(IniFile& ini)
 {
 	IniFile::Section* fifoplayer = ini.GetOrCreateSection("FifoPlayer");
@@ -350,6 +358,7 @@ void SConfig::LoadSettings()
 	LoadCoreSettings(ini);
 	LoadMovieSettings(ini);
 	LoadDSPSettings(ini);
+	LoadInputSettings(ini);
 	LoadFifoPlayerSettings(ini);
 
 	m_SYSCONF = new SysConf();
@@ -556,6 +565,13 @@ void SConfig::LoadDSPSettings(IniFile& ini)
 	dsp->Get("CaptureLog", &m_DSPCaptureLog, false);
 }
 
+void SConfig::LoadInputSettings(IniFile& ini)
+{
+	IniFile::Section* input = ini.GetOrCreateSection("Input");
+
+	input->Get("BackgroundInput", &m_BackgroundInput, false);
+}
+
 void SConfig::LoadFifoPlayerSettings(IniFile& ini)
 {
 	IniFile::Section* fifoplayer = ini.GetOrCreateSection("FifoPlayer");

Source/Core/Core/ConfigManager.h

@@ -97,6 +97,9 @@ struct SConfig : NonCopyable
 	int m_Volume;
 	std::string sBackend;
 
+	// Input settings
+	bool m_BackgroundInput;
+
 	SysConf* m_SYSCONF;
 
 	// save settings
@@ -122,6 +125,7 @@ private:
 	void SaveGameListSettings(IniFile& ini);
 	void SaveCoreSettings(IniFile& ini);
 	void SaveDSPSettings(IniFile& ini);
+	void SaveInputSettings(IniFile& ini);
 	void SaveMovieSettings(IniFile& ini);
 	void SaveFifoPlayerSettings(IniFile& ini);
 
@@ -132,6 +136,7 @@ private:
 	void LoadGameListSettings(IniFile& ini);
 	void LoadCoreSettings(IniFile& ini);
 	void LoadDSPSettings(IniFile& ini);
+	void LoadInputSettings(IniFile& ini);
 	void LoadMovieSettings(IniFile& ini);
 	void LoadFifoPlayerSettings(IniFile& ini);
 

Source/Core/Core/HW/GCPadEmu.cpp

@@ -79,7 +79,7 @@ GCPad::GCPad(const unsigned int index) : m_index(index)
 
 	// options
 	groups.emplace_back(m_options = new ControlGroup(_trans("Options")));
-	m_options->settings.emplace_back(new ControlGroup::Setting(_trans("Background Input"), false));
+	m_options->settings.emplace_back(new ControlGroup::BackgroundInputSetting(_trans("Background Input")));
 }
 
 std::string GCPad::GetName() const

Source/Core/Core/HW/WiimoteEmu/WiimoteEmu.cpp

@@ -313,7 +313,7 @@ Wiimote::Wiimote( const unsigned int index )
 
 	// options
 	groups.emplace_back( m_options = new ControlGroup(_trans("Options")));
-	m_options->settings.emplace_back(new ControlGroup::Setting(_trans("Background Input"), false));
+	m_options->settings.emplace_back(new ControlGroup::BackgroundInputSetting(_trans("Background Input")));
 	m_options->settings.emplace_back(new ControlGroup::Setting(_trans("Sideways Wiimote"), false));
 	m_options->settings.emplace_back(new ControlGroup::Setting(_trans("Upright Wiimote"), false));
 

Source/Core/InputCommon/ControllerEmu.h

@@ -14,6 +14,7 @@
 #include <vector>
 
 #include "Common/IniFile.h"
+#include "Core/ConfigManager.h"
 #include "InputCommon/GCPadStatus.h"
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 
@@ -114,6 +115,25 @@ public:
 			}
 		};
 
+		class BackgroundInputSetting : public Setting
+		{
+		public:
+			BackgroundInputSetting(const std::string &_name) : Setting(_name, false)
+			{
+				is_virtual = true;
+			}
+
+			void SetValue(ControlState new_value) override
+			{
+				SConfig::GetInstance().m_BackgroundInput = new_value;
+			}
+
+			ControlState GetValue() override
+			{
+				return SConfig::GetInstance().m_BackgroundInput;
+			}
+		};
+
 		ControlGroup(const std::string& _name, const unsigned int _type = GROUP_TYPE_OTHER) : name(_name), type(_type) {}
 		virtual ~ControlGroup() {}