Initial checkin of spot presentation for touchpad gestures. (DO NOT MERGE)
Added a new PointerIcon API (hidden for now) for loading
pointer icons.
Fixed a starvation problem in the native Looper's sendMessage
implementation which caused new messages to be posted ahead
of old messages sent with sendMessageDelayed.
Redesigned the touch pad gestures to be defined in terms of
more fluid finger / spot movements. The objective is to reinforce
the natural mapping between fingers and spots which means there
must not be any discontinuities in spot motion relative to
the fingers.
Removed the SpotController stub and folded its responsibilities
into PointerController.
Change-Id: Ib647dbd7a57a7f30dd9c6e2c260df51d7bbdd18e
diff --git a/include/ui/Input.h b/include/ui/Input.h
index 1ef36d0..fb6152e 100644
--- a/include/ui/Input.h
+++ b/include/ui/Input.h
@@ -608,6 +608,11 @@
// Oldest sample to consider when calculating the velocity.
static const nsecs_t MAX_AGE = 200 * 1000000; // 200 ms
+ // When the total duration of the window of samples being averaged is less
+ // than the window size, the resulting velocity is scaled to reduce the impact
+ // of overestimation in short traces.
+ static const nsecs_t MIN_WINDOW = 100 * 1000000; // 100 ms
+
// The minimum duration between samples when estimating velocity.
static const nsecs_t MIN_DURATION = 10 * 1000000; // 10 ms