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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "TestSceneBase.h"
     18 #include "utils/Color.h"
     19 
     20 #include <minikin/Layout.h>
     21 #include <hwui/Paint.h>
     22 
     23 #include <cstdio>
     24 
     25 class GlyphStressAnimation;
     26 
     27 static TestScene::Registrar _GlyphStress(TestScene::Info{
     28     "glyphstress",
     29     "A stress test for both the glyph cache, and glyph rendering.",
     30     TestScene::simpleCreateScene<GlyphStressAnimation>
     31 });
     32 
     33 class GlyphStressAnimation : public TestScene {
     34 public:
     35     sp<RenderNode> container;
     36     void createContent(int width, int height, TestCanvas& canvas) override {
     37         container = TestUtils::createNode(0, 0, width, height, nullptr);
     38         doFrame(0); // update container
     39 
     40         canvas.drawColor(Color::White, SkXfermode::kSrcOver_Mode);
     41         canvas.drawRenderNode(container.get());
     42     }
     43 
     44     void doFrame(int frameNr) override {
     45         std::unique_ptr<uint16_t[]> text = TestUtils::asciiToUtf16(
     46                 "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
     47         ssize_t textLength = 26 * 2;
     48 
     49         TestCanvas canvas(
     50                 container->stagingProperties().getWidth(),
     51                 container->stagingProperties().getHeight());
     52         Paint paint;
     53         paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
     54         paint.setAntiAlias(true);
     55         paint.setColor(Color::Black);
     56         for (int i = 0; i < 5; i++) {
     57             paint.setTextSize(10 + (frameNr % 20) + i * 20);
     58             canvas.drawText(text.get(), 0, textLength, textLength,
     59                     0, 100 * (i + 2), kBidi_Force_LTR, paint, nullptr);
     60         }
     61 
     62         container->setStagingDisplayList(canvas.finishRecording(), nullptr);
     63     }
     64 };
     65