Introduce TextPaint.measureText performance tests.
Bug: 29142734
Change-Id: I0e3d14fe8be728d47223d16316a628ebb25f834f
diff --git a/apct-tests/perftests/graphics/src/android/graphics/perftests/PaintMeasureTextTest.java b/apct-tests/perftests/graphics/src/android/graphics/perftests/PaintMeasureTextTest.java
new file mode 100644
index 0000000..b81908c
--- /dev/null
+++ b/apct-tests/perftests/graphics/src/android/graphics/perftests/PaintMeasureTextTest.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2016 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.Canvas;
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.support.test.filters.LargeTest;
+import android.text.TextPaint;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+@LargeTest
+@RunWith(Parameterized.class)
+public class PaintMeasureTextTest {
+
+ private static final int USE_CACHE = 0;
+ private static final int DONT_USE_CACHE = 1;
+
+ @Parameterized.Parameters(name = "{0}")
+ public static Collection measureSpecs() {
+ return Arrays.asList(new Object[][] {
+ { "alphabet_cached", USE_CACHE, "a" },
+ { "alphabet_not_cached", DONT_USE_CACHE, "a" },
+ // U+4E80 is an ideograph.
+ { "ideograph_cached", USE_CACHE, "\u4E80" },
+ { "ideograph_not_cached", DONT_USE_CACHE, "\u4E80" },
+ // U+20B9F(\uD842\uDF9F) is an ideograph.
+ { "surrogate_pairs_cached", USE_CACHE, "\uD842\uDF9F" },
+ { "surrogate_pairs_not_cached", DONT_USE_CACHE, "\uD842\uDF9F" },
+ // U+303D is PART ALTERNATION MARK
+ { "emoji_cached", USE_CACHE, "\u231A" },
+ { "emoji_not_cached", DONT_USE_CACHE, "\u231A" },
+ // U+1F368(\uD83C\uDF68) is ICE CREAM
+ { "emoji_surrogate_pairs_cached", USE_CACHE, "\uD83C\uDF68" },
+ { "emoji_surrogate_pairs_not_cached", DONT_USE_CACHE, "\uD83C\uDF68" },
+ });
+ }
+
+ private final String mText;
+ private final int mCacheMode;
+
+ public PaintMeasureTextTest(String key, int cacheMode, String text) {
+ mText = text;
+ mCacheMode = cacheMode;
+ }
+
+ @Rule
+ public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+ @Test
+ public void testMeasureTextPerf() {
+ TextPaint paint = new TextPaint();
+ BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+
+ if (mCacheMode == USE_CACHE) {
+ paint.measureText(mText);
+ } else {
+ Canvas.freeTextLayoutCaches();
+ }
+
+ while (state.keepRunning()) {
+ state.pauseTiming();
+ if (mCacheMode == DONT_USE_CACHE) {
+ Canvas.freeTextLayoutCaches();
+ }
+ state.resumeTiming();
+
+ paint.measureText(mText);
+ }
+ }
+}