Pad: Enhance controller settings and improve null safety

- Corrected capitalization of "Xbox" in XInput source description.
- Improved null pointer safety in InputManager.cpp by adding checks before method calls on input sources.

Author: SternXD

pcsx2-winrt/Package.appxmanifest

@@ -34,6 +34,7 @@
 		<rescap:Capability Name="runFullTrust"/>
 		<rescap:Capability Name="broadFileSystemAccess" />
 		<rescap:Capability Name="expandedResources" />
+		<rescap:Capability Name="hevcPlayback" />
 		<uap:Capability Name="removableStorage"/>
 		<Capability Name="internetClient" />
 		<Capability Name="codeGeneration"/>

pcsx2/ImGui/FullscreenUI.cpp

@@ -4633,7 +4633,7 @@ void FullscreenUI::DrawControllerSettingsPage()
 	{
 		DoSaveInputProfile();
 	}
-
+#ifndef WINRT_XBOX
 	MenuHeading("Input Sources");
 	DrawToggleSetting(bsi, FSUI_ICONSTR(ICON_FA_COG, "Enable SDL Input Source"),
 		FSUI_CSTR("The SDL input source supports most controllers."), "InputSources", "SDL", true, true, false);
@@ -4647,9 +4647,10 @@ void FullscreenUI::DrawControllerSettingsPage()
 	DrawToggleSetting(bsi, FSUI_ICONSTR(ICON_FA_COG, "SDL Raw Input"), FSUI_CSTR("Allow SDL to use raw access to input devices."),
 		"InputSources", "SDLRawInput", false, bsi->GetBoolValue("InputSources", "SDL", true), false);
 	DrawToggleSetting(bsi, FSUI_ICONSTR(ICON_FA_COG, "Enable XInput Input Source"),
-		FSUI_CSTR("The XInput source provides support for XBox 360/XBox One/XBox Series controllers."), "InputSources", "XInput", false,
+		FSUI_CSTR("The XInput source provides support for Xbox 360/Xbox One/Xbox Series controllers."), "InputSources", "XInput", false,
 		true, false);
-#endif
+#endif // _WIN32
+#endif // WINRT_XBOX
 	MenuHeading(FSUI_CSTR("Multitap"));
 	DrawToggleSetting(bsi, FSUI_ICONSTR(ICON_FA_PLUS_SQUARE, "Enable Console Port 1 Multitap"),
 		FSUI_CSTR("Enables an additional three controller slots. Not supported in all games."), "Pad", "MultitapPort1", false, true, false);

pcsx2/Input/InputManager.cpp

@@ -1620,7 +1620,7 @@ void InputManager::CloseSources()
 {
 	for (u32 i = FIRST_EXTERNAL_INPUT_SOURCE; i < LAST_EXTERNAL_INPUT_SOURCE; i++)
 	{
-		if (s_input_sources[i]->IsInitialized())
+		if (s_input_sources[i] && s_input_sources[i]->IsInitialized())
 		{
 			s_input_sources[i]->Shutdown();
 		}
@@ -1654,7 +1654,7 @@ std::vector<std::pair<std::string, std::string>> InputManager::EnumerateDevices(
 
 	for (u32 i = FIRST_EXTERNAL_INPUT_SOURCE; i < LAST_EXTERNAL_INPUT_SOURCE; i++)
 	{
-		if (s_input_sources[i]->IsInitialized())
+		if (s_input_sources[i] != nullptr && s_input_sources[i]->IsInitialized())
 		{
 			std::vector<std::pair<std::string, std::string>> devs(s_input_sources[i]->EnumerateDevices());
 			if (ret.empty())
@@ -1673,7 +1673,7 @@ std::vector<InputBindingKey> InputManager::EnumerateMotors()
 
 	for (u32 i = FIRST_EXTERNAL_INPUT_SOURCE; i < LAST_EXTERNAL_INPUT_SOURCE; i++)
 	{
-		if (s_input_sources[i]->IsInitialized())
+		if (s_input_sources[i] != nullptr && s_input_sources[i]->IsInitialized())
 		{
 			std::vector<InputBindingKey> devs(s_input_sources[i]->EnumerateMotors());
 			if (ret.empty())
@@ -1733,8 +1733,12 @@ InputManager::GenericInputBindingMapping InputManager::GetGenericBindingMapping(
 	{
 		for (u32 i = FIRST_EXTERNAL_INPUT_SOURCE; i < LAST_EXTERNAL_INPUT_SOURCE; i++)
 		{
-			if (s_input_sources[i]->IsInitialized() && s_input_sources[i]->GetGenericBindingMapping(device, &mapping))
+			if (s_input_sources[i] != nullptr &&
+				s_input_sources[i]->IsInitialized() &&
+				s_input_sources[i]->GetGenericBindingMapping(device, &mapping))
+			{
 				break;
+			}
 		}
 	}