MotionEvent: Avoid clipping tranformed orientation angle values am: 4bb5ae9fa8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/16121849

Change-Id: Id39f16d41c989adebc2bb87473e06ef8908c097e

1 files changed, 2 insertions, 7 deletions

diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index 35209f7a07..5f440b77e2 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -67,13 +67,8 @@ float transformAngle(const ui::Transform& transform, float angleRadians) {
     transformedPoint.y -= origin.y;
 
     // Derive the transformed vector's clockwise angle from vertical.
-    float result = atan2f(transformedPoint.x, -transformedPoint.y);
-    if (result < -M_PI_2) {
-        result += M_PI;
-    } else if (result > M_PI_2) {
-        result -= M_PI;
-    }
-    return result;
+    // The return value of atan2f is in range [-pi, pi] which conforms to the orientation API.
+    return atan2f(transformedPoint.x, -transformedPoint.y);
 }
 
 // Rotates the given point to the specified orientation. If the display width and height are