Merge "Add multitouch to new touch architecture" into tm-qpr-dev

4 files changed, 283 insertions, 123 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/udfps/NormalizedTouchData.kt b/packages/SystemUI/src/com/android/systemui/biometrics/udfps/NormalizedTouchData.kt
index 62bedc627b07..48d48450e13e 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/udfps/NormalizedTouchData.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/udfps/NormalizedTouchData.kt
@@ -26,28 +26,28 @@ data class NormalizedTouchData(
      * Value obtained from [MotionEvent.getPointerId], or [MotionEvent.INVALID_POINTER_ID] if the ID
      * is not available.
      */
-    val pointerId: Int,
+    val pointerId: Int = MotionEvent.INVALID_POINTER_ID,
 
     /** [MotionEvent.getRawX] mapped to natural orientation and native resolution. */
-    val x: Float,
+    val x: Float = 0f,
 
     /** [MotionEvent.getRawY] mapped to natural orientation and native resolution. */
-    val y: Float,
+    val y: Float = 0f,
 
     /** [MotionEvent.getTouchMinor] mapped to natural orientation and native resolution. */
-    val minor: Float,
+    val minor: Float = 0f,
 
     /** [MotionEvent.getTouchMajor] mapped to natural orientation and native resolution. */
-    val major: Float,
+    val major: Float = 0f,
 
     /** [MotionEvent.getOrientation] mapped to natural orientation. */
-    val orientation: Float,
+    val orientation: Float = 0f,
 
     /** [MotionEvent.getEventTime]. */
-    val time: Long,
+    val time: Long = 0,
 
     /** [MotionEvent.getDownTime]. */
-    val gestureStart: Long,
+    val gestureStart: Long = 0,
 ) {
 
     /**
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 693f64a1f93d..3a01cd502929 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/udfps/SinglePointerTouchProcessor.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/udfps/SinglePointerTouchProcessor.kt
@@ -43,74 +43,72 @@ class SinglePointerTouchProcessor @Inject constructor(val overlapDetector: Overl
     ): TouchProcessorResult {
 
         fun preprocess(): PreprocessedTouch {
-            // TODO(b/253085297): Add multitouch support. pointerIndex can be > 0 for ACTION_MOVE.
-            val pointerIndex = 0
-            val touchData = event.normalize(pointerIndex, overlayParams)
-            val isGoodOverlap =
-                overlapDetector.isGoodOverlap(touchData, overlayParams.nativeSensorBounds)
-            return PreprocessedTouch(touchData, previousPointerOnSensorId, isGoodOverlap)
+            val touchData = List(event.pointerCount) { event.normalize(it, overlayParams) }
+            val pointersOnSensor =
+                touchData
+                    .filter { overlapDetector.isGoodOverlap(it, overlayParams.nativeSensorBounds) }
+                    .map { it.pointerId }
+            return PreprocessedTouch(touchData, previousPointerOnSensorId, pointersOnSensor)
         }
 
         return when (event.actionMasked) {
-            MotionEvent.ACTION_DOWN -> processActionDown(preprocess())
+            MotionEvent.ACTION_DOWN,
+            MotionEvent.ACTION_POINTER_DOWN,
             MotionEvent.ACTION_MOVE -> processActionMove(preprocess())
-            MotionEvent.ACTION_UP -> processActionUp(preprocess())
-            MotionEvent.ACTION_CANCEL ->
-                processActionCancel(event.normalize(pointerIndex = 0, overlayParams))
+            MotionEvent.ACTION_UP,
+            MotionEvent.ACTION_POINTER_UP ->
+                processActionUp(preprocess(), event.getPointerId(event.actionIndex))
+            MotionEvent.ACTION_CANCEL -> processActionCancel(NormalizedTouchData())
             else ->
                 Failure("Unsupported MotionEvent." + MotionEvent.actionToString(event.actionMasked))
         }
     }
 }
 
+/**
+ * [data] contains a list of NormalizedTouchData for pointers in the motionEvent ordered by
+ * pointerIndex
+ *
+ * [previousPointerOnSensorId] the pointerId of the previous pointer on the sensor,
+ * [MotionEvent.INVALID_POINTER_ID] if none
+ *
+ * [pointersOnSensor] contains a list of ids of pointers on the sensor
+ */
 private data class PreprocessedTouch(
-    val data: NormalizedTouchData,
+    val data: List<NormalizedTouchData>,
     val previousPointerOnSensorId: Int,
-    val isGoodOverlap: Boolean,
+    val pointersOnSensor: List<Int>,
 )
 
-private fun processActionDown(touch: PreprocessedTouch): TouchProcessorResult {
-    return if (touch.isGoodOverlap) {
-        ProcessedTouch(InteractionEvent.DOWN, pointerOnSensorId = touch.data.pointerId, touch.data)
-    } else {
-        val event =
-            if (touch.data.pointerId == touch.previousPointerOnSensorId) {
-                InteractionEvent.UP
-            } else {
-                InteractionEvent.UNCHANGED
-            }
-        ProcessedTouch(event, pointerOnSensorId = INVALID_POINTER_ID, touch.data)
-    }
-}
-
 private fun processActionMove(touch: PreprocessedTouch): TouchProcessorResult {
     val hadPointerOnSensor = touch.previousPointerOnSensorId != INVALID_POINTER_ID
-    val interactionEvent =
-        when {
-            touch.isGoodOverlap && !hadPointerOnSensor -> InteractionEvent.DOWN
-            !touch.isGoodOverlap && hadPointerOnSensor -> InteractionEvent.UP
-            else -> InteractionEvent.UNCHANGED
-        }
-    val pointerOnSensorId =
-        when (interactionEvent) {
-            InteractionEvent.UNCHANGED -> touch.previousPointerOnSensorId
-            InteractionEvent.DOWN -> touch.data.pointerId
-            else -> INVALID_POINTER_ID
-        }
-    return ProcessedTouch(interactionEvent, pointerOnSensorId, touch.data)
+    val hasPointerOnSensor = touch.pointersOnSensor.isNotEmpty()
+    val pointerOnSensorId = touch.pointersOnSensor.firstOrNull() ?: INVALID_POINTER_ID
+
+    return if (!hadPointerOnSensor && hasPointerOnSensor) {
+        val data = touch.data.find { it.pointerId == pointerOnSensorId } ?: NormalizedTouchData()
+        ProcessedTouch(InteractionEvent.DOWN, data.pointerId, data)
+    } else if (hadPointerOnSensor && !hasPointerOnSensor) {
+        ProcessedTouch(InteractionEvent.UP, INVALID_POINTER_ID, NormalizedTouchData())
+    } else {
+        val data = touch.data.find { it.pointerId == pointerOnSensorId } ?: NormalizedTouchData()
+        ProcessedTouch(InteractionEvent.UNCHANGED, pointerOnSensorId, data)
+    }
 }
 
-private fun processActionUp(touch: PreprocessedTouch): TouchProcessorResult {
-    return if (touch.isGoodOverlap) {
-        ProcessedTouch(InteractionEvent.UP, pointerOnSensorId = INVALID_POINTER_ID, touch.data)
+private fun processActionUp(touch: PreprocessedTouch, actionId: Int): TouchProcessorResult {
+    // Finger lifted and it was the only finger on the sensor
+    return if (touch.pointersOnSensor.size == 1 && touch.pointersOnSensor.contains(actionId)) {
+        ProcessedTouch(
+            InteractionEvent.UP,
+            pointerOnSensorId = INVALID_POINTER_ID,
+            NormalizedTouchData()
+        )
     } else {
-        val event =
-            if (touch.previousPointerOnSensorId != INVALID_POINTER_ID) {
-                InteractionEvent.UP
-            } else {
-                InteractionEvent.UNCHANGED
-            }
-        ProcessedTouch(event, pointerOnSensorId = INVALID_POINTER_ID, touch.data)
+        // Pick new pointerOnSensor that's not the finger that was lifted
+        val pointerOnSensorId = touch.pointersOnSensor.find { it != actionId } ?: INVALID_POINTER_ID
+        val data = touch.data.find { it.pointerId == pointerOnSensorId } ?: NormalizedTouchData()
+        ProcessedTouch(InteractionEvent.UNCHANGED, data.pointerId, data)
     }
 }
 
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 56043e306c16..34ddf795c7e7 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
@@ -39,7 +39,8 @@ class SinglePointerTouchProcessorTest(val testCase: TestCase) : SysuiTestCase()
 
     @Test
     fun processTouch() {
-        overlapDetector.shouldReturn = testCase.isGoodOverlap
+        overlapDetector.shouldReturn =
+            testCase.currentPointers.associate { pointer -> pointer.id to pointer.onSensor }
 
         val actual =
             underTest.processTouch(
@@ -56,7 +57,7 @@ class SinglePointerTouchProcessorTest(val testCase: TestCase) : SysuiTestCase()
 
     data class TestCase(
         val event: MotionEvent,
-        val isGoodOverlap: Boolean,
+        val currentPointers: List<TestPointer>,
         val previousPointerOnSensorId: Int,
         val overlayParams: UdfpsOverlayParams,
         val expected: TouchProcessorResult,
@@ -91,28 +92,21 @@ class SinglePointerTouchProcessorTest(val testCase: TestCase) : SysuiTestCase()
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_DOWN,
                         previousPointerOnSensorId = INVALID_POINTER_ID,
-                        isGoodOverlap = true,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = true)),
                         expectedInteractionEvent = InteractionEvent.DOWN,
-                        expectedPointerOnSensorId = POINTER_ID,
-                    ),
-                    genPositiveTestCases(
-                        motionEventAction = MotionEvent.ACTION_DOWN,
-                        previousPointerOnSensorId = POINTER_ID,
-                        isGoodOverlap = true,
-                        expectedInteractionEvent = InteractionEvent.DOWN,
-                        expectedPointerOnSensorId = POINTER_ID,
+                        expectedPointerOnSensorId = POINTER_ID_1,
                     ),
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_DOWN,
                         previousPointerOnSensorId = INVALID_POINTER_ID,
-                        isGoodOverlap = false,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = false)),
                         expectedInteractionEvent = InteractionEvent.UNCHANGED,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_DOWN,
-                        previousPointerOnSensorId = POINTER_ID,
-                        isGoodOverlap = false,
+                        previousPointerOnSensorId = POINTER_ID_1,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = false)),
                         expectedInteractionEvent = InteractionEvent.UP,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
@@ -120,109 +114,226 @@ class SinglePointerTouchProcessorTest(val testCase: TestCase) : SysuiTestCase()
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_MOVE,
                         previousPointerOnSensorId = INVALID_POINTER_ID,
-                        isGoodOverlap = true,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = true)),
                         expectedInteractionEvent = InteractionEvent.DOWN,
-                        expectedPointerOnSensorId = POINTER_ID,
+                        expectedPointerOnSensorId = POINTER_ID_1,
                     ),
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_MOVE,
-                        previousPointerOnSensorId = POINTER_ID,
-                        isGoodOverlap = true,
+                        previousPointerOnSensorId = POINTER_ID_1,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = true)),
                         expectedInteractionEvent = InteractionEvent.UNCHANGED,
-                        expectedPointerOnSensorId = POINTER_ID,
+                        expectedPointerOnSensorId = POINTER_ID_1,
                     ),
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_MOVE,
                         previousPointerOnSensorId = INVALID_POINTER_ID,
-                        isGoodOverlap = false,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = false)),
                         expectedInteractionEvent = InteractionEvent.UNCHANGED,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_MOVE,
-                        previousPointerOnSensorId = POINTER_ID,
-                        isGoodOverlap = false,
+                        previousPointerOnSensorId = POINTER_ID_1,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = false)),
                         expectedInteractionEvent = InteractionEvent.UP,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
+                    genPositiveTestCases(
+                        motionEventAction = MotionEvent.ACTION_MOVE,
+                        previousPointerOnSensorId = INVALID_POINTER_ID,
+                        currentPointers =
+                            listOf(
+                                TestPointer(id = POINTER_ID_1, onSensor = false),
+                                TestPointer(id = POINTER_ID_2, onSensor = true)
+                            ),
+                        expectedInteractionEvent = InteractionEvent.DOWN,
+                        expectedPointerOnSensorId = POINTER_ID_2,
+                    ),
+                    genPositiveTestCases(
+                        motionEventAction = MotionEvent.ACTION_MOVE,
+                        previousPointerOnSensorId = POINTER_ID_1,
+                        currentPointers =
+                            listOf(
+                                TestPointer(id = POINTER_ID_1, onSensor = false),
+                                TestPointer(id = POINTER_ID_2, onSensor = true)
+                            ),
+                        expectedInteractionEvent = InteractionEvent.UNCHANGED,
+                        expectedPointerOnSensorId = POINTER_ID_2,
+                    ),
                     // MotionEvent.ACTION_UP
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_UP,
                         previousPointerOnSensorId = INVALID_POINTER_ID,
-                        isGoodOverlap = true,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = true)),
                         expectedInteractionEvent = InteractionEvent.UP,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_UP,
-                        previousPointerOnSensorId = POINTER_ID,
-                        isGoodOverlap = true,
+                        previousPointerOnSensorId = POINTER_ID_1,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = true)),
                         expectedInteractionEvent = InteractionEvent.UP,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_UP,
                         previousPointerOnSensorId = INVALID_POINTER_ID,
-                        isGoodOverlap = false,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = false)),
                         expectedInteractionEvent = InteractionEvent.UNCHANGED,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
-                    genPositiveTestCases(
-                        motionEventAction = MotionEvent.ACTION_UP,
-                        previousPointerOnSensorId = POINTER_ID,
-                        isGoodOverlap = false,
-                        expectedInteractionEvent = InteractionEvent.UP,
-                        expectedPointerOnSensorId = INVALID_POINTER_ID,
-                    ),
                     // MotionEvent.ACTION_CANCEL
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_CANCEL,
                         previousPointerOnSensorId = INVALID_POINTER_ID,
-                        isGoodOverlap = true,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = true)),
                         expectedInteractionEvent = InteractionEvent.CANCEL,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_CANCEL,
-                        previousPointerOnSensorId = POINTER_ID,
-                        isGoodOverlap = true,
+                        previousPointerOnSensorId = POINTER_ID_1,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = true)),
                         expectedInteractionEvent = InteractionEvent.CANCEL,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_CANCEL,
                         previousPointerOnSensorId = INVALID_POINTER_ID,
-                        isGoodOverlap = false,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = false)),
                         expectedInteractionEvent = InteractionEvent.CANCEL,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
                     genPositiveTestCases(
                         motionEventAction = MotionEvent.ACTION_CANCEL,
-                        previousPointerOnSensorId = POINTER_ID,
-                        isGoodOverlap = false,
+                        previousPointerOnSensorId = POINTER_ID_1,
+                        currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = false)),
                         expectedInteractionEvent = InteractionEvent.CANCEL,
                         expectedPointerOnSensorId = INVALID_POINTER_ID,
                     ),
+                    // MotionEvent.ACTION_POINTER_DOWN
+                    genPositiveTestCases(
+                        motionEventAction =
+                            MotionEvent.ACTION_POINTER_DOWN +
+                                (1 shl MotionEvent.ACTION_POINTER_INDEX_SHIFT),
+                        previousPointerOnSensorId = INVALID_POINTER_ID,
+                        currentPointers =
+                            listOf(
+                                TestPointer(id = POINTER_ID_1, onSensor = true),
+                                TestPointer(id = POINTER_ID_2, onSensor = false)
+                            ),
+                        expectedInteractionEvent = InteractionEvent.DOWN,
+                        expectedPointerOnSensorId = POINTER_ID_1,
+                    ),
+                    genPositiveTestCases(
+                        motionEventAction =
+                            MotionEvent.ACTION_POINTER_DOWN +
+                                (1 shl MotionEvent.ACTION_POINTER_INDEX_SHIFT),
+                        previousPointerOnSensorId = INVALID_POINTER_ID,
+                        currentPointers =
+                            listOf(
+                                TestPointer(id = POINTER_ID_1, onSensor = false),
+                                TestPointer(id = POINTER_ID_2, onSensor = true)
+                            ),
+                        expectedInteractionEvent = InteractionEvent.DOWN,
+                        expectedPointerOnSensorId = POINTER_ID_2
+                    ),
+                    genPositiveTestCases(
+                        motionEventAction =
+                            MotionEvent.ACTION_POINTER_DOWN +
+                                (1 shl MotionEvent.ACTION_POINTER_INDEX_SHIFT),
+                        previousPointerOnSensorId = POINTER_ID_1,
+                        currentPointers =
+                            listOf(
+                                TestPointer(id = POINTER_ID_1, onSensor = true),
+                                TestPointer(id = POINTER_ID_2, onSensor = false)
+                            ),
+                        expectedInteractionEvent = InteractionEvent.UNCHANGED,
+                        expectedPointerOnSensorId = POINTER_ID_1,
+                    ),
+                    // MotionEvent.ACTION_POINTER_UP
+                    genPositiveTestCases(
+                        motionEventAction =
+                            MotionEvent.ACTION_POINTER_UP +
+                                (1 shl MotionEvent.ACTION_POINTER_INDEX_SHIFT),
+                        previousPointerOnSensorId = INVALID_POINTER_ID,
+                        currentPointers =
+                            listOf(
+                                TestPointer(id = POINTER_ID_1, onSensor = false),
+                                TestPointer(id = POINTER_ID_2, onSensor = false)
+                            ),
+                        expectedInteractionEvent = InteractionEvent.UNCHANGED,
+                        expectedPointerOnSensorId = INVALID_POINTER_ID
+                    ),
+                    genPositiveTestCases(
+                        motionEventAction =
+                            MotionEvent.ACTION_POINTER_UP +
+                                (1 shl MotionEvent.ACTION_POINTER_INDEX_SHIFT),
+                        previousPointerOnSensorId = POINTER_ID_2,
+                        currentPointers =
+                            listOf(
+                                TestPointer(id = POINTER_ID_1, onSensor = false),
+                                TestPointer(id = POINTER_ID_2, onSensor = true)
+                            ),
+                        expectedInteractionEvent = InteractionEvent.UP,
+                        expectedPointerOnSensorId = INVALID_POINTER_ID
+                    ),
+                    genPositiveTestCases(
+                        motionEventAction = MotionEvent.ACTION_POINTER_UP,
+                        previousPointerOnSensorId = POINTER_ID_1,
+                        currentPointers =
+                            listOf(
+                                TestPointer(id = POINTER_ID_1, onSensor = true),
+                                TestPointer(id = POINTER_ID_2, onSensor = false)
+                            ),
+                        expectedInteractionEvent = InteractionEvent.UP,
+                        expectedPointerOnSensorId = INVALID_POINTER_ID
+                    ),
+                    genPositiveTestCases(
+                        motionEventAction =
+                            MotionEvent.ACTION_POINTER_UP +
+                                (1 shl MotionEvent.ACTION_POINTER_INDEX_SHIFT),
+                        previousPointerOnSensorId = POINTER_ID_1,
+                        currentPointers =
+                            listOf(
+                                TestPointer(id = POINTER_ID_1, onSensor = true),
+                                TestPointer(id = POINTER_ID_2, onSensor = false)
+                            ),
+                        expectedInteractionEvent = InteractionEvent.UNCHANGED,
+                        expectedPointerOnSensorId = POINTER_ID_1
+                    ),
+                    genPositiveTestCases(
+                        motionEventAction = MotionEvent.ACTION_POINTER_UP,
+                        previousPointerOnSensorId = POINTER_ID_2,
+                        currentPointers =
+                            listOf(
+                                TestPointer(id = POINTER_ID_1, onSensor = false),
+                                TestPointer(id = POINTER_ID_2, onSensor = true)
+                            ),
+                        expectedInteractionEvent = InteractionEvent.UNCHANGED,
+                        expectedPointerOnSensorId = POINTER_ID_2
+                    )
                 )
                 .flatten() +
                 listOf(
-                        // Unsupported MotionEvent actions.
-                        genTestCasesForUnsupportedAction(MotionEvent.ACTION_POINTER_DOWN),
-                        genTestCasesForUnsupportedAction(MotionEvent.ACTION_POINTER_UP),
                         genTestCasesForUnsupportedAction(MotionEvent.ACTION_HOVER_ENTER),
                         genTestCasesForUnsupportedAction(MotionEvent.ACTION_HOVER_MOVE),
-                        genTestCasesForUnsupportedAction(MotionEvent.ACTION_HOVER_EXIT),
+                        genTestCasesForUnsupportedAction(MotionEvent.ACTION_HOVER_EXIT)
                     )
                     .flatten()
     }
 }
 
+data class TestPointer(val id: Int, val onSensor: Boolean)
+
 /* Display dimensions in native resolution and natural orientation. */
 private const val ROTATION_0_NATIVE_DISPLAY_WIDTH = 400
 private const val ROTATION_0_NATIVE_DISPLAY_HEIGHT = 600
 
 /* Placeholder touch parameters. */
-private const val POINTER_ID = 42
+private const val POINTER_ID_1 = 42
+private const val POINTER_ID_2 = 43
 private const val NATIVE_MINOR = 2.71828f
 private const val NATIVE_MAJOR = 3.14f
 private const val ORIENTATION = 1.2345f
@@ -325,7 +436,7 @@ private val ROTATION_270_INPUTS =
 private val MOTION_EVENT =
     obtainMotionEvent(
         action = 0,
-        pointerId = POINTER_ID,
+        pointerId = POINTER_ID_1,
         x = 0f,
         y = 0f,
         minor = 0f,
@@ -338,7 +449,7 @@ private val MOTION_EVENT =
 /* Template [NormalizedTouchData]. */
 private val NORMALIZED_TOUCH_DATA =
     NormalizedTouchData(
-        POINTER_ID,
+        POINTER_ID_1,
         x = 0f,
         y = 0f,
         NATIVE_MINOR,
@@ -384,7 +495,7 @@ private data class OrientationBasedInputs(
 private fun genPositiveTestCases(
     motionEventAction: Int,
     previousPointerOnSensorId: Int,
-    isGoodOverlap: Boolean,
+    currentPointers: List<TestPointer>,
     expectedInteractionEvent: InteractionEvent,
     expectedPointerOnSensorId: Int
 ): List<SinglePointerTouchProcessorTest.TestCase> {
@@ -399,22 +510,47 @@ private fun genPositiveTestCases(
     return scaleFactors.flatMap { scaleFactor ->
         orientations.map { orientation ->
             val overlayParams = orientation.toOverlayParams(scaleFactor)
-            val nativeX = orientation.getNativeX(isGoodOverlap)
-            val nativeY = orientation.getNativeY(isGoodOverlap)
+
+            val pointerProperties =
+                currentPointers
+                    .map { pointer ->
+                        val pp = MotionEvent.PointerProperties()
+                        pp.id = pointer.id
+                        pp
+                    }
+                    .toList()
+
+            val pointerCoords =
+                currentPointers
+                    .map { pointer ->
+                        val pc = MotionEvent.PointerCoords()
+                        pc.x = orientation.getNativeX(pointer.onSensor) * scaleFactor
+                        pc.y = orientation.getNativeY(pointer.onSensor) * scaleFactor
+                        pc.touchMinor = NATIVE_MINOR * scaleFactor
+                        pc.touchMajor = NATIVE_MAJOR * scaleFactor
+                        pc.orientation = orientation.nativeOrientation
+                        pc
+                    }
+                    .toList()
+
             val event =
                 MOTION_EVENT.copy(
                     action = motionEventAction,
-                    x = nativeX * scaleFactor,
-                    y = nativeY * scaleFactor,
-                    minor = NATIVE_MINOR * scaleFactor,
-                    major = NATIVE_MAJOR * scaleFactor,
-                    orientation = orientation.nativeOrientation
+                    pointerProperties = pointerProperties,
+                    pointerCoords = pointerCoords
                 )
+
             val expectedTouchData =
-                NORMALIZED_TOUCH_DATA.copy(
-                    x = ROTATION_0_INPUTS.getNativeX(isGoodOverlap),
-                    y = ROTATION_0_INPUTS.getNativeY(isGoodOverlap),
-                )
+                if (expectedPointerOnSensorId != INVALID_POINTER_ID) {
+                    NORMALIZED_TOUCH_DATA.copy(
+                        pointerId = expectedPointerOnSensorId,
+                        x = ROTATION_0_INPUTS.getNativeX(isWithinSensor = true),
+                        y = ROTATION_0_INPUTS.getNativeY(isWithinSensor = true)
+                    )
+                } else {
+                    NormalizedTouchData()
+                }
+
             val expected =
                 TouchProcessorResult.ProcessedTouch(
                     event = expectedInteractionEvent,
@@ -423,7 +559,7 @@ private fun genPositiveTestCases(
                 )
             SinglePointerTouchProcessorTest.TestCase(
                 event = event,
-                isGoodOverlap = isGoodOverlap,
+                currentPointers = currentPointers,
                 previousPointerOnSensorId = previousPointerOnSensorId,
                 overlayParams = overlayParams,
                 expected = expected,
@@ -436,7 +572,7 @@ private fun genTestCasesForUnsupportedAction(
     motionEventAction: Int
 ): List<SinglePointerTouchProcessorTest.TestCase> {
     val isGoodOverlap = true
-    val previousPointerOnSensorIds = listOf(INVALID_POINTER_ID, POINTER_ID)
+    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)
@@ -451,7 +587,7 @@ private fun genTestCasesForUnsupportedAction(
             )
         SinglePointerTouchProcessorTest.TestCase(
             event = event,
-            isGoodOverlap = isGoodOverlap,
+            currentPointers = listOf(TestPointer(id = POINTER_ID_1, onSensor = isGoodOverlap)),
             previousPointerOnSensorId = previousPointerOnSensorId,
             overlayParams = overlayParams,
             expected = TouchProcessorResult.Failure(),
@@ -478,13 +614,23 @@ private fun obtainMotionEvent(
     pc.touchMinor = minor
     pc.touchMajor = major
     pc.orientation = orientation
+    return obtainMotionEvent(action, arrayOf(pp), arrayOf(pc), time, gestureStart)
+}
+
+private fun obtainMotionEvent(
+    action: Int,
+    pointerProperties: Array<MotionEvent.PointerProperties>,
+    pointerCoords: Array<MotionEvent.PointerCoords>,
+    time: Long,
+    gestureStart: Long,
+): MotionEvent {
     return MotionEvent.obtain(
         gestureStart /* downTime */,
         time /* eventTime */,
         action /* action */,
-        1 /* pointerCount */,
-        arrayOf(pp) /* pointerProperties */,
-        arrayOf(pc) /* pointerCoords */,
+        pointerCoords.size /* pointerCount */,
+        pointerProperties /* pointerProperties */,
+        pointerCoords /* pointerCoords */,
         0 /* metaState */,
         0 /* buttonState */,
         1f /* xPrecision */,
@@ -508,4 +654,19 @@ private fun MotionEvent.copy(
     gestureStart: Long = this.downTime,
 ) = obtainMotionEvent(action, pointerId, x, y, minor, major, orientation, time, gestureStart)
 
+private fun MotionEvent.copy(
+    action: Int = this.action,
+    pointerProperties: List<MotionEvent.PointerProperties>,
+    pointerCoords: List<MotionEvent.PointerCoords>,
+    time: Long = this.eventTime,
+    gestureStart: Long = this.downTime
+) =
+    obtainMotionEvent(
+        action,
+        pointerProperties.toTypedArray(),
+        pointerCoords.toTypedArray(),
+        time,
+        gestureStart
+    )
+
 private fun Rect.scaled(scaleFactor: Float) = Rect(this).apply { scale(scaleFactor) }
diff --git a/packages/SystemUI/tests/utils/src/com/android/systemui/biometrics/udfps/FakeOverlapDetector.kt b/packages/SystemUI/tests/utils/src/com/android/systemui/biometrics/udfps/FakeOverlapDetector.kt
index 8176dd07b84a..1bdee3667d04 100644
--- a/packages/SystemUI/tests/utils/src/com/android/systemui/biometrics/udfps/FakeOverlapDetector.kt
+++ b/packages/SystemUI/tests/utils/src/com/android/systemui/biometrics/udfps/FakeOverlapDetector.kt
@@ -19,9 +19,10 @@ package com.android.systemui.biometrics.udfps
 import android.graphics.Rect
 
 class FakeOverlapDetector : OverlapDetector {
-    var shouldReturn: Boolean = false
+    var shouldReturn: Map<Int, Boolean> = mapOf()
 
     override fun isGoodOverlap(touchData: NormalizedTouchData, nativeSensorBounds: Rect): Boolean {
-        return shouldReturn
+        return shouldReturn[touchData.pointerId]
+            ?: error("Unexpected PointerId not declared in TestCase currentPointers")
     }
 }