Invert Gyro Roll for Steam Deck input handler

scc/drivers/steamdeck.py

@@ -193,7 +193,8 @@ def _on_input(self, endpoint, data):
 			self.configure()
 			self._ready = True
 
-		self._old_state, self._input = self._input, self._old_state
+		# Don't like this version
+		#self._old_state, self._input = self._input, self._old_state
 		ctypes.memmove(ctypes.addressof(self._input), data, len(data))
 		if self._input.seq % UNLIZARD_INTERVAL == 0:
 			# Keeps lizard mode from happening
@@ -221,10 +222,16 @@ def _on_input(self, endpoint, data):
 		self._input.stick_y = apply_deadzone(self._input.stick_y, STICK_DEADZONE)
 		self._input.rstick_x = apply_deadzone(self._input.rstick_x, STICK_DEADZONE)
 		self._input.rstick_y = apply_deadzone(self._input.rstick_y, STICK_DEADZONE)
+
+		# Invert Gyro Roll to match Steam Controller coordinate system
+		self._input.groll = self._input.groll
 
 		m = self.get_mapper()
 		if m:
 			self.mapper.input(self, self._old_state, self._input)
+
+		# Preserve current state into previous state object
+		self._old_state = self._input
 
 	def close(self):
 		if self._ready: