Make Save/Load state mappable to controls. Not mapped by default.

Common/KeyMap.cpp

@@ -609,6 +609,8 @@ const KeyMap_IntStrPair psp_button_names[] = {
 #ifndef USING_GLES2
 	{VIRTKEY_REWIND, "Rewind"},
 #endif
+	{VIRTKEY_SAVE_STATE, "Save State"},
+	{VIRTKEY_LOAD_STATE, "Load State"},
 
 	{VIRTKEY_AXIS_RIGHT_Y_MAX, "RightAn.Up"},
 	{VIRTKEY_AXIS_RIGHT_Y_MIN, "RightAn.Down"},

Common/KeyMap.h

@@ -41,6 +41,8 @@ enum {
 	VIRTKEY_AXIS_RIGHT_X_MAX = 0x1000a,
 	VIRTKEY_AXIS_RIGHT_Y_MAX = 0x1000b,
 	VIRTKEY_REWIND = 0x1000c,
+	VIRTKEY_SAVE_STATE = 0x1000d,
+	VIRTKEY_LOAD_STATE = 0x1000e,
 	VIRTKEY_LAST,
 	VIRTKEY_COUNT = VIRTKEY_LAST - VIRTKEY_FIRST
 };
@@ -96,9 +98,9 @@ typedef std::map<int, std::vector<KeyDef>> KeyMapping;
 // KeyMap
 // A translation layer for key assignment. Provides
 // integration with Core's config state.
-// 
+//
 // Does not handle input state managment.
-// 
+//
 // Platform ports should map their platform's keys to KeyMap's keys (NKCODE_*).
 //
 // Then have KeyMap transform those into psp buttons.
@@ -114,7 +116,7 @@ namespace KeyMap {
 		std::string name;
 	};
 
-	// Use if you need to display the textual name 
+	// Use if you need to display the textual name
 	std::string GetKeyName(int keyCode);
 	std::string GetKeyOrAxisName(int keyCode);
 	std::string GetAxisName(int axisId);

UI/EmuScreen.cpp

@@ -269,6 +269,14 @@ void EmuScreen::onVKeyDown(int virtualKeyCode) {
 			osm.Show(s->T("norewind", "No rewind save states available"), 2.0);
 		}
 		break;
+	case VIRTKEY_SAVE_STATE:
+		SaveState::SaveSlot(g_Config.iCurrentStateSlot, 0);
+		break;
+	case VIRTKEY_LOAD_STATE:
+		if (SaveState::HasSaveInSlot(g_Config.iCurrentStateSlot)) {
+			SaveState::LoadSlot(g_Config.iCurrentStateSlot, 0);
+		}
+		break;
 	}
 }