input: restore original defaults when changing pad handlers

This fixes the vibration threshold being 0 when going to DS3 and back.
Probably also fixes a lot of other tiny bugs.

rpcs3/Emu/Io/PadHandler.cpp

@@ -200,6 +200,10 @@ void PadHandlerBase::init_configs()
 {
 	for (u32 i = 0; i < MAX_GAMEPADS; i++)
 	{
+		// We need to restore the original defaults first.
+		m_pad_configs[i].restore_defaults();
+
+		// Set and apply actual defaults depending on pad handler
 		init_config(&m_pad_configs[i]);
 	}
 }

rpcs3/Input/gui_pad_thread.cpp

@@ -234,14 +234,18 @@ std::shared_ptr<PadHandlerBase> gui_pad_thread::GetHandler(pad_handler type)
 
 void gui_pad_thread::InitPadConfig(cfg_pad& cfg, pad_handler type, std::shared_ptr<PadHandlerBase>& handler)
 {
+	// We need to restore the original defaults first.
+	cfg.restore_defaults();
+
 	if (!handler)
 	{
 		handler = GetHandler(type);
+	}
 
-		if (handler)
-		{
-			handler->init_config(&cfg);
-		}
+	if (handler)
+	{
+		// Set and apply actual defaults depending on pad handler
+		handler->init_config(&cfg);
 	}
 }
 

rpcs3/Input/pad_thread.cpp

@@ -883,12 +883,17 @@ std::shared_ptr<PadHandlerBase> pad_thread::GetHandler(pad_handler type)
 
 void pad_thread::InitPadConfig(cfg_pad& cfg, pad_handler type, std::shared_ptr<PadHandlerBase>& handler)
 {
+	// We need to restore the original defaults first.
+	cfg.restore_defaults();
+
 	if (!handler)
 	{
 		handler = GetHandler(type);
 	}
 
 	ensure(!!handler);
+
+	// Set and apply actual defaults depending on pad handler
 	handler->init_config(&cfg);
 }