Merge "Add BitmapPerfTest" into main

/*

 * Copyright (C) 2025 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package android.graphics.perftests;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Color;

import android.os.Parcel;

import android.perftests.utils.BenchmarkState;

import android.perftests.utils.PerfStatusReporter;

import androidx.test.filters.LargeTest;

import org.junit.Rule;

import org.junit.Test;

@LargeTest

public class BitmapPerfTest {

    @Rule

    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

    @Test

    public void testParcelBitmap() {

        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();

        // Make a large enough bitmap to be a good benchmark.

        Bitmap bitmap = Bitmap.createBitmap(1000, 1000, Bitmap.Config.ARGB_8888);

        Canvas canvas = new Canvas(bitmap);

        // Paint the canvas purple.

        // Purple is a good color for a benchmark. Purple benchmarks are the best.

        canvas.drawColor(Color.parseColor("purple"));

        while (state.keepRunning()) {

            Parcel parcel = Parcel.obtain();

            bitmap.writeToParcel(parcel, 0);

            parcel.recycle();

        }

        bitmap.recycle();

    }

}