| /* |
| * Copyright (C) 2018 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.text; |
| |
| import android.graphics.RecordingCanvas; |
| import android.graphics.RenderNode; |
| import android.perftests.utils.BenchmarkState; |
| import android.perftests.utils.PerfStatusReporter; |
| |
| import androidx.test.filters.LargeTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.util.Random; |
| |
| @LargeTest |
| @RunWith(AndroidJUnit4.class) |
| public class CanvasDrawTextTest { |
| private static final int WORD_LENGTH = 9; // Random word has 9 characters. |
| |
| private static final TextPaint PAINT = new TextPaint(); |
| |
| @Rule |
| public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| |
| private TextPerfUtils mTextUtil = new TextPerfUtils(); |
| |
| @Before |
| public void setUp() { |
| mTextUtil.resetRandom(0 /* seed */); |
| } |
| |
| @Test |
| public void drawText_LongText_SmallWindow() { |
| final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| final String text = mTextUtil.nextRandomParagraph( |
| WORD_LENGTH, 4 * 1024 * 1024 /* 4mb text */).toString(); |
| final RenderNode node = RenderNode.create("benchmark", null); |
| final RenderNode child = RenderNode.create("child", null); |
| child.setLeftTopRightBottom(50, 50, 100, 100); |
| |
| RecordingCanvas canvas = node.start(100, 100); |
| node.end(canvas); |
| canvas = child.start(50, 50); |
| child.end(canvas); |
| |
| final Random r = new Random(0); |
| |
| while (state.keepRunning()) { |
| int start = r.nextInt(text.length() - 100); |
| canvas.drawText(text, start, start + 100, 0, 0, PAINT); |
| } |
| } |
| } |