Touch pad UX improvements.

Fade the pointer spot when swiping or performing a freeform
gesture.

Support configuring the gesture mode in the device IDC file.

Added workaround for devices that report individual finger
movements one at a time instead of all at once.

Bug: 4124987
Change-Id: I44628b00382ad59306e4ec5c4717d69cc6fbebb8

1 files changed, 8 insertions, 0 deletions

diff --git a/services/input/InputReader.h b/services/input/InputReader.h
index 0485617..0fbc93c 100644
--- a/services/input/InputReader.h
+++ b/services/input/InputReader.h
@@ -1021,6 +1021,14 @@ private:
         float referenceGestureX;  // reference gesture X/Y coordinates in pixels
         float referenceGestureY;
 
+        // Distance that each pointer has traveled which has not yet been
+        // subsumed into the reference gesture position.
+        BitSet32 referenceIdBits;
+        struct Delta {
+            float dx, dy;
+        };
+        Delta referenceDeltas[MAX_POINTER_ID + 1];
+
         // Describes how touch ids are mapped to gesture ids for freeform gestures.
         uint32_t freeformTouchToGestureIdMap[MAX_POINTER_ID + 1];