Tilt scale correction for certain resolutions

"mTiltXScale" does not reflect the resolutions of the tilts of the devices,
so that the AXIS_TILT can be corrupted when a device reports its tilt with
a certain resolution rather than a degree based output.

Test: manual

Signed-off-by: Tatsunosuke Tobita <tatsunosuke.tobita@WacomMfG.corp-partner.google.com>
Change-Id: I35d866a8cd2778a34904229cf8c475b3118b9c2b
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index cbdb1d0..bfdc02c 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -905,6 +905,13 @@
             mTiltXScale = M_PI / 180;
             mTiltYScale = M_PI / 180;
 
+            if (mRawPointerAxes.tiltX.resolution) {
+                mTiltXScale = 1.0 / mRawPointerAxes.tiltX.resolution;
+            }
+            if (mRawPointerAxes.tiltY.resolution) {
+                mTiltYScale = 1.0 / mRawPointerAxes.tiltY.resolution;
+            }
+
             mOrientedRanges.haveTilt = true;
 
             mOrientedRanges.tilt.axis = AMOTION_EVENT_AXIS_TILT;