make InputMapper::ApplyMapping public

stepmania/src/InputMapper.h

@@ -56,6 +56,25 @@ public:
 	void ResetKeyRepeat( MenuInput MenuI );
 	void ResetKeyRepeat( StyleInput StyleI );
 
+	struct Mapping {
+		bool IsEndMarker() const { return iSlotIndex==-1; }
+
+		int iSlotIndex;	// -1 == end marker
+		int deviceButton;
+		GameButton gb;
+		/* If this is true, this is an auxilliary mapping assigned to the second
+		* player.  If two of the same device are found, and the device has secondary
+		* entries, the later entries take precedence.  This way, if a Pump pad is
+		* found, it'll map P1 to the primary pad and P2 to the secondary pad.
+		* (We can't tell if a slave pad is actually there.)  Then, if a second primary
+		* is found (DEVICE_PUMP2), 2P will be mapped to it. 
+		*
+		* This isn't well-tested; I only have one Pump pad. */
+		bool SecondController;
+	};
+
+	void ApplyMapping( const Mapping *maps, GameController gc, InputDevice device );
+
 protected:
 	// all the DeviceInputs that map to a GameInput
 	DeviceInput m_GItoDI[MAX_GAME_CONTROLLERS][MAX_GAME_BUTTONS][NUM_GAME_TO_DEVICE_SLOTS];