Avoid mockito in MotionPredictorBenchmark
Mockito dominates the time to create MotionPredictor, and
it can be avoided.
The median time reduces from ~39614ns to ~683ns. (-98%).
Bug: 321913450
Test: atest CorePerfTests:android.input.MotionPredictorBenchmark
Change-Id: Idea21b5627a25af8d5941bb8c7a1ff567eb2504d
diff --git a/apct-tests/perftests/core/src/android/input/MotionPredictorBenchmark.kt b/apct-tests/perftests/core/src/android/input/MotionPredictorBenchmark.kt
index aadbc23..add0a08 100644
--- a/apct-tests/perftests/core/src/android/input/MotionPredictorBenchmark.kt
+++ b/apct-tests/perftests/core/src/android/input/MotionPredictorBenchmark.kt
@@ -16,8 +16,6 @@
package android.input
-import android.content.Context
-import android.content.res.Resources
import android.os.SystemProperties
import android.perftests.utils.PerfStatusReporter
import android.view.InputDevice
@@ -38,8 +36,6 @@
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
-import org.mockito.Mockito.mock
-import org.mockito.Mockito.`when`
import java.time.Duration
@@ -68,18 +64,6 @@
InputDevice.SOURCE_STYLUS, /*flags=*/0)
}
-private fun getPredictionContext(offset: Duration, enablePrediction: Boolean): Context {
- val context = mock(Context::class.java)
- val resources: Resources = mock(Resources::class.java)
- `when`(context.getResources()).thenReturn(resources)
- `when`(resources.getInteger(
- com.android.internal.R.integer.config_motionPredictionOffsetNanos)).thenReturn(
- offset.toNanos().toInt())
- `when`(resources.getBoolean(
- com.android.internal.R.bool.config_enableMotionPrediction)).thenReturn(enablePrediction)
- return context
-}
-
@RunWith(AndroidJUnit4::class)
@LargeTest
class MotionPredictorBenchmark {
@@ -115,7 +99,7 @@
var eventPosition = 0f
val positionInterval = 10f
- val predictor = MotionPredictor(getPredictionContext(offset, /*enablePrediction=*/true))
+ val predictor = MotionPredictor(/*isPredictionEnabled=*/true, offset.toNanos().toInt())
// ACTION_DOWN t=0 x=0 y=0
predictor.record(getStylusMotionEvent(
eventTime, ACTION_DOWN, /*x=*/eventPosition, /*y=*/eventPosition))
@@ -141,12 +125,11 @@
*/
@Test
fun timeCreatePredictor() {
- val context = getPredictionContext(
- /*offset=*/Duration.ofMillis(20), /*enablePrediction=*/true)
+ val offsetNanos = Duration.ofMillis(20).toNanos().toInt()
val state = perfStatusReporter.getBenchmarkState()
while (state.keepRunning()) {
- MotionPredictor(context)
+ MotionPredictor(/*isPredictionEnabled=*/true, offsetNanos)
}
}
}
diff --git a/core/java/android/view/MotionPredictor.java b/core/java/android/view/MotionPredictor.java
index 27af300..db2efaa 100644
--- a/core/java/android/view/MotionPredictor.java
+++ b/core/java/android/view/MotionPredictor.java
@@ -20,6 +20,8 @@
import android.annotation.Nullable;
import android.content.Context;
+import com.android.internal.annotations.VisibleForTesting;
+
import libcore.util.NativeAllocationRegistry;
/**
@@ -57,11 +59,21 @@
* @param context The context for the predictions
*/
public MotionPredictor(@NonNull Context context) {
- mIsPredictionEnabled = context.getResources().getBoolean(
- com.android.internal.R.bool.config_enableMotionPrediction);
- final int offsetNanos = context.getResources().getInteger(
- com.android.internal.R.integer.config_motionPredictionOffsetNanos);
- mPtr = nativeInitialize(offsetNanos);
+ this(
+ context.getResources().getBoolean(
+ com.android.internal.R.bool.config_enableMotionPrediction),
+ context.getResources().getInteger(
+ com.android.internal.R.integer.config_motionPredictionOffsetNanos));
+ }
+
+ /**
+ * Internal constructor for testing.
+ * @hide
+ */
+ @VisibleForTesting
+ public MotionPredictor(boolean isPredictionEnabled, int motionPredictionOffsetNanos) {
+ mIsPredictionEnabled = isPredictionEnabled;
+ mPtr = nativeInitialize(motionPredictionOffsetNanos);
RegistryHolder.REGISTRY.registerNativeAllocation(this, mPtr);
}