Add UDFPS ROTATION_180 support

Bug: 332582654
Test: SinglePointerTouchProcessorTest
Flag: None

Change-Id: If51e4ca54c5f6d0526045b0b2ac3331d9928b7f1

2 files changed, 28 insertions, 30 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/udfps/SinglePointerTouchProcessor.kt b/packages/SystemUI/src/com/android/systemui/biometrics/udfps/SinglePointerTouchProcessor.kt
index 83b3380ae6be..1eef91debab3 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/udfps/SinglePointerTouchProcessor.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/udfps/SinglePointerTouchProcessor.kt
@@ -27,7 +27,8 @@ import com.android.systemui.biometrics.udfps.TouchProcessorResult.ProcessedTouch
 import com.android.systemui.dagger.SysUISingleton
 import javax.inject.Inject
 
-private val SUPPORTED_ROTATIONS = setOf(Surface.ROTATION_90, Surface.ROTATION_270)
+private val SUPPORTED_ROTATIONS =
+    setOf(Surface.ROTATION_90, Surface.ROTATION_270, Surface.ROTATION_180)
 
 /**
  * TODO(b/259140693): Consider using an object pool of TouchProcessorResult to avoid allocations.
diff --git a/packages/SystemUI/tests/src/com/android/systemui/biometrics/udfps/SinglePointerTouchProcessorTest.kt b/packages/SystemUI/tests/src/com/android/systemui/biometrics/udfps/SinglePointerTouchProcessorTest.kt
index 99c2c4076403..aff93bd339ad 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/biometrics/udfps/SinglePointerTouchProcessorTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/biometrics/udfps/SinglePointerTouchProcessorTest.kt
@@ -465,10 +465,34 @@ private val ROTATION_90_INPUTS =
         nativeYOutsideSensor = 150f,
     )
 
-/* ROTATION_180 is not supported. It's treated the same as ROTATION_0. */
+/*
+ * ROTATION_180 map:
+ * _ _ _ _
+ * _ _ s _
+ * _ _ s _
+ * _ _ _ _
+ * _ O _ _
+ * _ _ _ _
+ *
+ * (_) empty space
+ * (S) sensor
+ * (O) touch outside of the sensor
+ */
+private val ROTATION_180_NATIVE_SENSOR_BOUNDS =
+    Rect(
+        200, /* left */
+        100, /* top */
+        300, /* right */
+        300, /* bottom */
+    )
 private val ROTATION_180_INPUTS =
-    ROTATION_0_INPUTS.copy(
+    OrientationBasedInputs(
         rotation = Surface.ROTATION_180,
+        nativeOrientation = (ORIENTATION - Math.PI.toFloat() / 2),
+        nativeXWithinSensor = ROTATION_180_NATIVE_SENSOR_BOUNDS.exactCenterX(),
+        nativeYWithinSensor = ROTATION_180_NATIVE_SENSOR_BOUNDS.exactCenterY(),
+        nativeXOutsideSensor = 150f,
+        nativeYOutsideSensor = 450f,
     )
 
 /*
@@ -639,33 +663,6 @@ private fun genPositiveTestCases(
     }
 }
 
-private fun genTestCasesForUnsupportedAction(
-    motionEventAction: Int
-): List<SinglePointerTouchProcessorTest.TestCase> {
-    val isGoodOverlap = true
-    val previousPointerOnSensorIds = listOf(INVALID_POINTER_ID, POINTER_ID_1)
-    return previousPointerOnSensorIds.map { previousPointerOnSensorId ->
-        val overlayParams = ROTATION_0_INPUTS.toOverlayParams(scaleFactor = 1f)
-        val nativeX = ROTATION_0_INPUTS.getNativeX(isGoodOverlap)
-        val nativeY = ROTATION_0_INPUTS.getNativeY(isGoodOverlap)
-        val event =
-            MOTION_EVENT.copy(
-                action = motionEventAction,
-                x = nativeX,
-                y = nativeY,
-                minor = NATIVE_MINOR,
-                major = NATIVE_MAJOR,
-            )
-        SinglePointerTouchProcessorTest.TestCase(
-            event = event,
-            currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = isGoodOverlap)),
-            previousPointerOnSensorId = previousPointerOnSensorId,
-            overlayParams = overlayParams,
-            expected = TouchProcessorResult.Failure(),
-        )
-    }
-}
-
 private fun obtainMotionEvent(
     action: Int,
     pointerId: Int,